TECHNIQUES FOR CONFIGURING OVERLOAD AND PREAMBLE SIGNS FOR TRANSMISSIONS IN AN UNLICENSED RADIO FREQ

专利摘要:
techniques for configuring overload and preamble signals for transmissions in an unlicensed radio frequency band are techniques for wireless communication. a first method includes transmitting a first signal to indicate access to a first channel in a radio spectrum band and transmitting information with the first signal in the radio frequency band. a second method includes resolving radio frequency band conflict and, conflict to access the radio frequency band, transmitting a first one second reference start point associated with the band to access one after resolving the signal spectrum to align signal to a radio frequency limit. a third method includes spectrum to resolve the conflict to access a radio frequency spectrum band during a first frame period, the first frame being selected from a plurality of different frame periods, and transmitting a signal at a periodicity during one or more subframes of the first frame period for each of the plurality of different frame periods.
公开号:BR112016023408A2
申请号:R112016023408-1
申请日:2015-03-09
公开日:2020-12-15
发明作者:Tao Luo；Srinivas Yerramalli；Peter Gaal；Shimman Arvind Patel；Wanshi Chen；Naga Bhushan；Yongbin Wei；Hao Xu；Aleksandar Damn Janovic；Tingfang JI；Durga Prasad Malladi
申请人:Qualcomm Incorporated；
IPC主号:

专利说明:

[0001] [0001] This Application claims the priority of Patent Application No. US 14 / 584,149, by Luo et al., Entitled "Techniques for Configuring Preamble and Overhead Signals for Transmissions in an Unlicensed Radio Frequency Spectrum Band", filed on 29 December 2014; of the Provisional Patent Application nç! U.S. 61 / 969,080, by Luo et al, entitled "Techniques for Configuring Preamble and Overhead Signals for Transmissions in an Unlicensed Radio Frequency Spectrum Band", filed March 21, 2014; and the Provisional Patent Application rM U.S.
[0002] [0002] The present disclosure, for example, relates to wireless communication systems and, more particularly, to techniques for configuring overload and preamp signals for transmissions in a radio frequency spectrum band. BACKGROUND
[0003] [0003] Wireless communication systems are widely installed to provide various types of communication content, such as, voice, video, packet data, messages, broadcast and so on. These systems can be multiple access systems capable of supporting communication with multiple users by sharing available system resources (for example,
[0004] [0004] As an example, a wireless multiple access communication system can include several base stations, each of which simultaneously supports communication to multiple UES. A base station can communicate with UEs on downlink channels (for example, for transmissions from a base station to a UE) and uplink channels (for example, for transmissions from a UE to a station base).
[0005] [0005] Some communication modes may enable communications with a UE over different radio spectrum bands (for example, a licensed radio spectrum band and / or an unlicensed radio spectrum band) from a cellular network . With increasing data traffic on cellular networks, offloading at least part of the data traffic over an unlicensed radio spectrum band can provide a cellular operator with opportunities for enhanced data transmission capacity. In addition, a plurality of mobile network operators may conflict with each other to access a shared licensed radio frequency spectrum that operators are authorized to access. Before obtaining access and transmitting data over the licensed radio spectrum band, a transmission device may, in some instances, perform a listen before speaking (LBT) procedure to gain access to the radio spectrum band. An LBT procedure may include performing a free channel assessment (CCA) to determine whether the radio frequency spectrum band is available. When it is determined that the radio frequency band channel is not available (for example, due to the fact that another device is already using the radio frequency band channel), a CCA can be performed again for the channel posteriorly.
[0006] [0006] In some cases, transmissions over one or more nodes over a radio frequency spectrum band (for example, W1-Fi nodes and / or nodes of other operators) may prevent a base station or EU from gaining access to the radio spectrum, which results in the base station or EU "lacking" the use of the radio spectrum band. In some cases, this deficiency problem can be mitigated by using an LBT protocol configured for load-based equipment (LBT-LBE) instead of an LBT protocol configured for frame-based equipment (LBT-FBE) . In an LBT-LBE protocol, an extended CCA procedure that includes a plurality of N CCA procedures can be performed. The extended CCA procedure performed in combination with an LBT-LBE protocol can provide a base station or UE with a better chance of gaining access to a radio frequency spectrum band (for example, compared to a single CCA procedure performed in combination with an LBT-FBE protocol). SUMMARY OF THE INVENTION
[0007] [0007] The present disclosure, for example, refers to one or more techniques for configuring overload and preamble signals for transmissions in a radio frequency spectrum band. In some examples, the techniques may include transmitting information in a preamble signal in a radio frequency band.
[0008] [0008] In a first set of illustrative examples, a method for wireless communication is described. In one example, the method may include transmitting a first signal to indicate access to a first channel in a radio spectrum band and transmitting information with the first signal in the radio spectrum band.
[0009] [0009] In some examples of the method, the information may include system information. In some examples, the information may indicate a frame structure for transmission in the radio frequency band. In some examples, the information may indicate an uplink configuration or a downlink configuration for transmission in the radio frequency band. In some examples, the information may indicate several subframes of a frame that are used for transmission in the radio frequency band.
[0010] [0010] In some examples of the method, the transmission of information with the first signal may include transmitting information as part of the first signal. In some examples, the first signal can be generated based, at least partially, on a sequence. In some examples, the sequence may be a function of the information. In some examples, the information may include a cell identifier (ID), a public land mobile network ID, or a combination thereof.
[0011] [0011] In some examples of the method, the transmission of information with the first signal may include transmitting information in a second signal next to the first signal. The second signal can be separated from the first signal.
[0012] [0012] In some examples, the method may include selecting a first phase from a plurality of phases for the transmission of the first signal. The different phases of the plurality of phases can correspond to different information. In these examples, a transmission of information with the first signal may include transmitting the first signal in the first phase.
[0013] [0013] In some examples, the first signal and information can be transmitted during a single period of multiplexing symbol by orthogonal frequency division of the radio frequency band.
[0014] [0014] In some examples, the first signal can be transmitted during a first OFDM symbol period of the radio spectrum band and a second OFDM symbol period of the radio spectrum band, and information can be transmitted during the second OFDM symbol period. In these examples, the method may include transmitting a second signal that carries the information during the second OFDM symbol period of the radio spectrum band. In these latter examples, the first signal can provide a phase reference for the second signal.
[0015] [0015] In some examples, the information may indicate several antennas to be used to receive a transmission carried on a component carrier in the radio frequency spectrum band. In these examples, the method may include adjusting a modulation and coding scheme (MCS) for transmitting the component carrier in the radio frequency spectrum band based, at least partially, on the number of antennas to be used to receive the component carrier in the radio frequency spectrum band. In some examples, the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency band can be determined, at least partially, based on an uplink configuration or an associated downlink configuration. to the component carrier. In some examples, the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency spectrum band can be determined based, at least partially, on a free channel assessment procedure (CCA) associated with each one of a plurality of component carriers used to service user equipment (UE). In some examples, the method may include selecting the number of antennas to be used to receive a transmission carried on the component carrier in the radio spectrum band for each subframe of a component carrier frame in the radio spectrum band.
[0016] [0016] In a second set of illustrative examples, a device for wireless communication is described. In one example, the apparatus may include a means for transmitting a first signal in order to indicate access to a first channel in a radio frequency band, and a means for transmitting information with the first signal in the radio frequency band. In some examples, the apparatus may additionally include means for deploying one or more aspects of the method for wireless communication described above in relation to the first set of illustrative examples.
[0017] [0017] In a third set of illustrative examples, another device for wireless communication is described. In one example, the device may include a processor, memory in electronic communication with the processor, and instructions stored in memory. The instructions can be performed by the processor to transmit a first signal to indicate access to a first channel in a radio frequency band and to transmit information with the first signal in the radio frequency band. In some examples,
[0018] [0018] In a fourth set of illustrative examples, a computer program product for communication via wireless communication device in a wireless communication system is described. In one example, the computer program product may include non-transitory computer-readable media that stores instructions executable by a processor to cause the wireless communication device to transmit a first signal to indicate access to a first channel on a radio frequency band and transmit the information with the first signal in the radio frequency band. In some examples, instructions may be executable by the processor to cause the wireless communication device to implant one or more aspects of the wireless communication method described above in relation to the first set of illustrative examples.
[0019] [0019] In a fifth set of illustrative examples, another method for wireless communications is described. In one example, the method may include resolving a conflict to access a radio spectrum band. The method may also include, after resolving the conflict to access the radio spectrum band, transmitting a first signal to align a start point of a second signal with a reference limit associated with the radio spectrum band.
[0020] [0020] In some examples, the method may include accessing timing information and determining the reference limit based, at least partially, on timing information and conflict resolution to access the radio frequency band.
[0021] [0021] In some examples of the method, the first signal may include a variable length training sequence. In some examples, the first signal may include a variable-length training sequence and at least one fixed-length training sequence.
[0022] [0022] In some examples, the method may include transmitting information as part of the first signal.
[0023] [0023] In some examples, the first signal may be usable for automatic gain control (AGC) by user equipment (UE).
[0024] [0024] In some examples, the method may include operating in an LBT-LBE operating mode in the radio frequency spectrum band. In some examples of the method, the reference limit may include an OFDM symbol period limit. In these examples, the first signal can be associated with a conflict priority, and the first signal can be transmitted during a portion of the OFDM symbol period based, at least in part, on the conflict priority. In some examples of the method, the reference limit may include a space limit of a frame associated with the radio frequency spectrum band.
[0025] [0025] In some examples of the method, the second signal may include a signal that indicates the solution of the conflict to access the radio frequency spectrum band. In some instances, the first signal can be transmitted before the second signal.
[0026] [0026] In a sixth set of illustrative examples, a device for wireless communication accesses a radio frequency spectrum band. The apparatus may also include a means for, after resolving the conflict to access the radio spectrum band, to transmit a first signal to align a start point of a second signal to a reference limit associated with the radio spectrum band. In some examples, the apparatus may additionally include means for deploying one or more aspects of the wireless communication method described above in relation to the fifth set of illustrative examples.
[0027] [0027] In a seventh set of illustrative examples, another device for wireless communication is described. In one example, the device may include a processor, memory in coI, electronic connection to the processor, and instructions stored in memory. Instructions can be executed by the processor to resolve the conflict in order to access a radio frequency spectrum band. The instructions can also be executed by the processor to, after resolving the conflict to access the radio spectrum band, transmit a first signal in order to align a start point of a second signal with a reference limit associated with the spectrum band. radio frequency. In some examples, instructions may also be executable by the processor to implement one or more aspects of the method for wireless communication described above in relation to the fifth set of illustrative examples.
[0028] [0028] In an eighth set of illustrative examples, a computer program product for communicating via wireless communication device in a wireless communication system is described. In one example, the computer program product may include non-transitory computer-readable media that stores instructions executable by a processor to cause the wireless communication device to resolve the conflict to access a radio frequency band. The instructions can also be executed by the processor to make the wireless communication device, after resolving the conflict to access the radio frequency spectrum band, transmit a first signal to align a start point of a second signal to a limit of reference associated with the radio frequency spectrum band. In some examples, instructions may be executable by the processor to cause the wireless communication device to implant one or more aspects of the wireless communication method described above in relation to the fifth set of illustrative examples.
[0029] [0029] In a ninth set of illustrative examples, another method for wireless communications is described. In one example, the method may include resolving the conflict to access a radio spectrum band during a first frame period. The first frame can be selected from a plurality of different frame periods. The method may also include transmitting a signal at a periodicity during one or more subframes of the first frame period for each of the plurality of different frame periods.
[0030] [0030] In some examples of the method, the periodicity can be a fixed periodicity.
[0031] [0031] In some examples of the method, transmission of the signal at periodicity may include transmitting the signal at a fixed time and a fixed frequency location.
[0032] [0032] In some examples of the method, the signal can be transmitted on an overload channel.
[0033] [0033] In some examples of the method, the first frame period may include a listen before speaking (LBT) frame period.
[0034] [0034] In some examples, the method may include determining the possibility that the signal will collide with a timing of a conflict procedure and preventing transmission of the signal based, at least partially, on the determination that the signal collides with the timing of the conflict. conflict procedure.
[0035] [0035] In a tenth set of illustrative examples, a device for wireless communication is described. In one example, the device may include a means to resolve the conflict in order to access a radio frequency spectrum band during a first frame period. The first frame can be selected from a plurality of different frame periods. The apparatus may also include means for transmitting a signal at a periodicity during one or more subframes of the first frame period for each of the plurality of different frame periods. In some examples, the apparatus may additionally include means for deploying one or more aspects of the wireless communication method described above in relation to the ninth set of illustrative examples.
[0036] [0036] In an eleventh set of illustrative examples, another device for wireless communication is described. In one example, the device may include a processor, memory in electronic communication with the processor, and instructions stored in memory. The instructions can be executed by the processor to resolve the conflict in order to access a radio frequency band during a first frame period. The first frame can be selected from a plurality of different frame periods. The instructions can also be executed by the processor to transmit a signal at a periodicity during one or more subframes of the first frame, they can also be executed by the processor to implement one or more aspects of the method for wireless communication described above in relation to the ninth set of illustrative examples.
[0037] [0037] In a twelfth set of illustrative examples, a computer program product for communicating via wireless communication device in a wireless communication system is described. In one example, the computer program product may include non-transitory computer-readable media that stores instructions executable by a processor to cause the wireless communication device to resolve the conflict to access a radio spectrum band during a first frame period. The first frame can be selected from a plurality of different frame periods. The instructions can also be executed by the processor to make the wireless communication device transmit a signal at a periodicity during one or more subframes of the first frame period for each of the plurality of different frame periods. In some examples, instructions may be executable by the processor to cause the wireless communication device to implant one or more aspects of the wireless communication method described above in relation to the ninth set of illustrative examples.
[0038] [0038] In a thirteenth set of illustrative examples, another method for wireless communication is described. In one example, the method may include resolving the conflict to access a radio frequency spectrum band; after resolving the conflict to access the radio spectrum band, transmit a first signal to indicate a timing of a radio frame limit associated with the radio spectrum band; and transmitting a second signal to pass the location information to the overload signals in relation to the radio frame boundary timing.
[0039] [0039] In some examples of the method, the second signal may include radio resource control (RRC) signaling. In some examples of the method, the second signal can pass location information to a downlink control channel in relation to the radio frame limit. In some examples, the second signal can pass location information to resources used for feedback from channel state information (CSI).
[0040] [0040] In some examples, the method may include operating in a load-based equipment (LBE) type of listen-to-speak (LBT) operating mode over the radio frequency spectrum band. In some examples, the first signal may include the second signal.
[0041] [0041] In a fourteenth set of illustrative examples, a device for wireless communication is described. In one example, the device may include a means to resolve the conflict in order to access a radio frequency band; means for transmitting, after resolving the conflict in order to access the radio spectrum band, a first signal to indicate a timing of a radio frame boundary associated with the radio spectrum band; and means for transmitting a second signal for passing location information to overload signals in relation to the radio frame boundary timing. In some examples, the apparatus may additionally include means for deploying one or more aspects of the method for wireless communication described above in relation to the thirteenth set of illustrative examples.
[0042] [0042] In a fifteenth set of illustrative examples, another device for wireless communication is described. In one example, the device may include a processor, memory in electronic communication with the processor, and instructions stored in memory. Instructions can be executed by the processor to resolve the conflict in order to access a radio frequency spectrum band; to transmit, after resolving the conflict in order to access the radio spectrum band, a first signal to indicate a radio frame boundary timing associated with the radio spectrum band; and to transmit a second signal in order to pass location information to overload signals in relation to the radio frame boundary timing. In some examples, the instructions may also be executable by the processor to implement one or more aspects of the method for wireless communication described above in relation to the thirteenth set of illustrative examples.
[0043] [0043] In a sixteenth set of illustrative examples, a computer program product for communicating via wireless communication device in a wireless communication system is described. In one example, the computer program product may include non-transitory computer-readable media that stores instructions executable by a processor to get the wireless communication device to resolve the conflict in order to access a radio frequency band; to transmit, after resolving the conflict in order to access the radio spectrum band, a first signal to indicate a radio frame boundary timing associated with the radio spectrum band; and to transmit a second signal in order to pass location information to overload signals in relation to the radio frame boundary timing. In some examples, instructions may be executable by the processor to have the wireless communication device implant one or more aspects of the wireless communication method described above in relation to the thirteenth set of illustrative examples.
[0044] [0044] The aforementioned broadly highlighted the technical features and advantages of the examples according to the disclosure so that the following detailed disclosure is better understood. Additional features and benefits will be described hereinafter. The specific design and examples revealed can be used readily as a basis for modifying or designing other structures to accomplish the same purposes as the present disclosure. Such equivalent interpretations do not depart from the spirit and scope of the attached claims. The resources that are considered as characteristics of the concepts revealed in this document, both in relation to the organization and the method of operation of them, together with the associated advantages will be better understood from the description below when considered in combination with the attached Figures. Each of the Figures is provided by way of illustration and description only and is not intended to limit the claims.
[0045] [0045] An additional understanding of the nature and advantages of the present invention can be obtained in relation to the following drawings. In the attached figures, components or similar features may have the same reference mark. In addition, several components of the same type can be distinguished by following the reference mark through a dash and a second mark that is distinguished between similar components. If only the first reference mark is used in the specification, the description is applicable to any of the similar components that have the same first reference mark, regardless of the second reference mark. BRIEF DESCRIPTION OF THE DRAWINGS
[0046] [0046] An additional understanding of the nature and advantages of the present invention can be obtained in relation to the following drawings. In the attached figures, components or similar features may have the same reference mark. In addition, several components of the same type can be distinguished by following the reference mark through a dash and a second mark that is distinguished between similar components. If only the first reference mark is used in the specification, the description is applicable to any of the similar components that have the same first reference mark, regardless of the second reference mark.
[0047] [0047] Figure 1 shows a block diagram of a wireless communication system, in accordance with various aspects of the present disclosure;
[0048] [0048] Figure 2 shows a wireless communication system in which LTE / LTE-A is installed in different situations using an unlicensed radio spectrum band, in accordance with various aspects of the present disclosure;
[0049] [0049] Figure 3 shows examples of a switching interval (or LBT radio frame) for a cellular downlink in an unlicensed radio spectrum band, in accordance with various aspects of the present disclosure;
[0050] [0050] Figure 4 shows an example of wireless communication over an unlicensed radio spectrum band, in accordance with various aspects of the present disclosure;
[0051] [0051] Figure 5 shows an example of wireless communication over an unlicensed radio spectrum band, in accordance with various aspects of the present disclosure;
[0052] [0052] Figure 6 shows an example of resource allocations for CCA exemption transmissions (CETS) from synchronous operators in an unlicensed radio spectrum band, in accordance with various aspects of the present disclosure;
[0053] [0053] Figure 7 shows a timing diagram of wireless communications over an unlicensed radio spectrum band, in accordance with various aspects of the present disclosure;
[0054] [0054] Figure 8A shows an example of how information can be transmitted with a first signal (for example, a channel-use radio beacon signal (CUBS)) indicating access to a channel in a radio frequency spectrum band , in accordance with various aspects of the present disclosure;
[0055] [0055] Figure 8B shows an example of how information can be transmitted with a first signal (for example, a CUBS) that indicates access to a channel in a radio frequency spectrum band, in accordance with various aspects of the present disclosure ;
[0056] [0056] Figure 9 shows an example of how information indicating various antennas to be used to receive a transmission carried on a component carrier can be determined and used, in accordance with various aspects of the present disclosure;
[0057] [0057] Figure 10 shows an example of how information indicating various antennas to be used to receive a transmission carried on a component carrier can be determined and used, in accordance with various aspects of the present disclosure;
[0058] [0058] Figure 11A shows an example of how a first signal can be transmitted to align a start point of a second signal to a reference limit associated with a radio frequency spectrum band in accordance with various aspects of the present disclosure;
[0059] [0059] Figure 11B shows an example of how a first signal can be transmitted to align a start point of a second signal to a reference limit associated with a radio frequency spectrum band 'in accordance with various aspects of the present disclosure;
[0060] [0060] Figure 11C shows an example of how a first signal can be transmitted to align a start point of a second signal to a reference limit associated with a radio frequency spectrum band in accordance with various aspects of the present disclosure;
[0061] [0061] Figure 12 shows an example of how a first signal can be transmitted while operating in an LBT-LBE operating mode in a radio frequency spectrum band, to align a second signal's initialization point to a reference limit associated with the radio frequency spectrum band in accordance with various aspects of the present disclosure;
[0062] [0062] Figure 13 shows an example of how a first signal can be transmitted while operating in an LBT-LBE mode of operation in a radio frequency spectrum band, to align a second signal initialization point to a reference limit associated with the radio frequency spectrum band in accordance with various aspects of the present disclosure;
[0063] [0063] Figure 14 shows an example of how a first signal can be transmitted while operating in an LBT-LBE operating mode in a radio frequency spectrum band, to align a second signal's initialization point to a reference limit associated with the radio frequency spectrum band in accordance with various aspects of the present disclosure;
[0064] [0064] Figure 15 shows an example of how a first signal can be transmitted while operating in an LBT-LBE operating mode in a radio frequency spectrum band, to align a second signal's initialization point to a reference limit associated with the radio frequency spectrum band in accordance with various aspects of the present disclosure;
[0065] [0065] Figure 16 shows an example of how one or more overload transmissions can be made in a radio frequency spectrum band in accordance with various aspects of the present disclosure;
[0066] [0066] Figure 17 shows a block diagram 1200 of a device 1215 for use in wireless communication in accordance with various aspects of the present disclosure.
[0067] [0067] Figure 18 shows a block diagram 1200 of a device 1215 for use in wireless communication in accordance with various aspects of the present disclosure.
[0068] [0068] Figure 19 shows a block diagram 1200 of a device 1215 for use in wireless communication in accordance with various aspects of the present disclosure.
[0069] [0069] Figure 20 shows a block diagram 1200 of a device 1215 for use in wireless communication in accordance with various aspects of the present disclosure.
[0070] [0070] Figure 21 shows a block diagram 1200 of a device 1215 for use in wireless communication in accordance with various aspects of the present disclosure.
[0071] [0071] Figure 22 shows a block diagram 1200 of a device 1215 for use in wireless communication in accordance with various aspects of the present disclosure.
[0072] [0072] Figure 23 shows a block diagram 1200 of a device 1215 for use in wireless communication in accordance with various aspects of the present disclosure.
[0073] [0073] Figure 24 shows a block diagram 1200 of a device 1215 for use in wireless communication in accordance with various aspects of the present disclosure.
[0074] [0074] Figure 25 shows the block diagram of a base station (for example, a base station that forms an entire eNB or part of it) for use in wireless communication, in accordance with various aspects of the present disclosure;
[0075] [0075] Figure 26 shows the block diagram of a UE for use in wireless communication in accordance with various aspects of the present disclosure;
[0076] [0076] Figure 27 is a flow chart illustrating an example of a method for wireless communication according to various aspects of the present disclosure;
[0077] [0077] Figure 28 is a flow chart illustrating an example of a method for wireless communication according to various aspects of the present disclosure;
[0078] [0078] Figure 29 is a flow chart illustrating an example of a method for wireless communication in accordance with various aspects of the present disclosure;
[0079] [0079] Figure 30 is a flow chart illustrating an example of a method for wireless communication in accordance with various aspects of the present disclosure;
[0080] [0080] Figure 31 is a flow chart illustrating an example of a method for wireless communication in accordance with various aspects of the present disclosure;
[0081] [0081] Figure 32 is a flow chart illustrating an example of a method for wireless communication in accordance with various aspects of the present disclosure;
[0082] [0082] Figure 33 is a flow chart illustrating an example of a method for wireless communication in accordance with various aspects of the present disclosure; and
[0083] [0083] Figure 34 is a flow chart illustrating an example of a method for wireless communication in accordance with various aspects of the present disclosure; DETAILED DESCRIPTION
[0084] [0084] Techniques are described in which the preamble and / or overload signals are configured for transmissions in a radio frequency spectrum band (for example, an unlicensed radio spectrum band for which devices may need to conflict over access due to the fact that the radio frequency band is available for non-licensed use, such as use of W1-Fi, or a shared licensed radio band which a plurality of mobile network operators are authorized to access). In some examples, the radio frequency spectrum band can be used for cellular communications (for example, Long Term Evolution (LTE) communications and / or LTE-Advanced communications (LTE-A)).
[0085] [0085] With increasing data traffic on cellular networks, offloading at least part of the data traffic to a radio frequency spectrum band can provide a cellular operator (for example, an operator of a public terrestrial mobile network (PLMN ) and / or a coordinated set of base stations that define a cellular network, such as an LTE / LTE-A network) opportunities for improved data transmission capacity. Before obtaining access through the radio spectrum band, and communicating data through it, a transmission device may, in some examples, perform an LBT procedure in order to gain access to the radio frequency band. Such an LBT procedure may include performing a CCA to determine whether a channel in the radio spectrum band is available. When it is determined that a channel is not available, a CCA can be performed for the channel again later.
[0086] [0086] In some examples of the techniques described, the information (for example, N bits of information) can be transmitted through a channel in a radio frequency spectrum band by transmitting the information with a signal that indicates access to the channel ( for example, the reserve thereof) in the radio frequency band. In one example, information can be transmitted as part of the signal indicating access to the channel in the radio frequency spectrum band. In another example, the information can be transmitted as a separate signal next to the signal indicating access to the channel in the radio frequency band. The transmitted information can assist a receiving device in decoding a transmission that follows the information and / or may enable the receiving device to save energy, etc.
[0087] [0087] In some examples of the techniques described, a first signal can be transmitted when a successful conflict procedure (for example, an LBT procedure) is completed before a reference limit associated with a radio frequency spectrum band ( for example, before a limit of a next orthogonal frequency division multiplexing symbol period associated with the radio frequency band, a space limit of a frame associated with the radio frequency band and / or a limit of one subframe of a frame associated with the radio frequency band). The first signal can be used to align a start point of a second signal to the reference limit associated with the radio frequency band. In some examples, the beginning of the first signal may not coincide with a reference limit of the radio frequency spectrum band, and the length of the first signal may be variable due to variations in timing between the time a conflict procedure is performed and the time when a reference limit occurs (for example, a limit of a next OFDM symbol period).
[0088] [0088] In some examples of the described techniques, one or more overload channel transmissions (for example, eCRS and / or CSI-RS transmissions) can be transmitted with a periodicity, at a time or in moments and / or in a location and / or frequency locations, regardless of the duration (for example, two milliseconds, five milliseconds and / or ten milliseconds) of an LBT radio frame period. For example, one or more overload channel transmissions can be made during one or more subframes regardless of the duration of an LBT radio frame in which the subframes occur.
[0089] [0089] The techniques described in this document can be used for various wireless communications, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can deploy radio technology, such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers the IS-2000, IS-95 and IS-856 standards. IS-2000 releases 0 and A are usually called CDMA2000 lX, lX, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 IxEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes Broadband CDMA (WCDMA) and other CDMA variants. A TDMA system can deploy radio technology, such as the Global System for Mobile Communications (GSM). An OFDMA system can deploy radio technology such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (W1-Fi), IEEE 802.16, IEEE 802.20, Flash-OFDM '"" , etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunication System (UMTS). The Long Term Evolution (LTE) of 3GPP and Advanced LTE (LTE-A) are launches of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and
[0090] [0090] The following description provides examples and is not limited to the scope, applicability or configuration presented in the claims. Changes can be made in the function and arrangement of the elements discussed without departing from the spirit and scope of the revelation.
[0091] [0091] Figure 1 shows a block diagram of a wireless communication system 100, in accordance with various aspects of the present disclosure. The wireless communication system 100 can include a plurality of base stations 105 (for example, base stations that form all of the one or more eNBs or part of them), several UES 115 and a main network 130. Some of the stations base 105 can communicate with UEs 115 under the control of a base station controller (not shown), which can be part of main network 130 or certain base stations 105 and various examples. Some of the base stations 105 can communicate control information and / or user data with the main network 130 via return traffic 132. In some examples, some base stations 105 can communicate, both directly and indirectly, with each other through return traffic links 134, which can be wired or wireless communication links. The wireless communication system 100 can support operation on multiple carriers (waveform signals of different frequencies). Multiple carrier transmitters can simultaneously transmit modulated signals on multiple carriers. For example, each communication link 125 can be a signal modulated from multiple carriers according to the different radio technologies. Each modulated signal can be sent on a different carrier, and can carry control information (for example, reference signals, control channels, etc.), overload information, data, etc.
[0092] [0092] Base stations 105 can communicate wirelessly with devices 115 through one or more base station antennas. Each of the access points 105 can provide communication coverage for a respective coverage area 110. In some examples, an access point 105 can be referred to as a base station, a base transceiver (BTS) station, a base station - radio base, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a NodeB, an evolved NodeB (eNB), a Residential NodeB, a Residential eNodeB, an access point WLAN, a W1Fi node or some other suitable terminology. The coverage area 110 for a base station 105 can be divided into sectors that form only a portion of the coverage area. Wireless communication system 100 may include access points 105 of different types (for example, macro, micro and / or peak base stations). Base stations 105 may also use different radio technologies, such as cellular radio and / or WLAN access technologies. Base stations 105 can be associated with the same or different access networks or operator facilities. The coverage areas of different base stations 105, including the same or different coverage areas of base stations 105 that use the same or different radio technologies and / or that belong to the same or different access networks, may overlap.
[0093] [0093] In some examples, the wireless communication system 100 may include an LTE / LTE-A communication system (or network), with the LTE / LTE-A communication system supporting one or more communication modes. operation or installation in a licensed radio spectrum band (for example, a radio frequency band for which devices may not conflict over access due to the fact that the spectrum band is licensed to private users for private uses) and / or an unlicensed radio frequency band (for example, a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as , use of W1-Fi). In other examples, wireless communication system 100 can support wireless communication using one or more access technologies other than LTE / LTE-A. In LTE / LTE-A communication systems, the term NodeB or evolved eNB can be used, for example, to describe single 105 base stations or groups of base stations.
[0094] [0094] The wireless communication system 100 can be one or it can include a heterogeneous LTE / LTE-A network in which different types of base stations 105 provide coverage for various geographic regions. For example, each base station 105 can provide communication coverage for a macrocell, a picocell, a femtocell and / or another type of cell. Small cells, such as picocells, femtocells and / or other types of cells, may include low-energy nodes or LPNS. A macrocell, for example, generally covers a relatively large geographical area (for example, several kilometers in radius), and can allow unrestricted access by UES with service subscriptions with the network provider.
[0095] [0095] Main network 130 can communicate with base stations 105 via return traffic "132 (eg, SI application protocol, etc.). Base stations 105 can also communicate, via example,
[0096] [0096] UES 115 can be dispersed over the entire wireless communication system 100. An UE 115 can also be called by people skilled in the art of a mobile device, a mobile station, a subscriber station, a mobile unit , a subscriber unit, a wireless unit, a remote unit, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal , a remote terminal, a handset, a user agent, a mobile client, a client or some other suitable terminology. An UE 115 can have a cell phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a portable device, a tablet computer, a laptop computer, a cordless phone, a wearable item, such as a watch or pair of glasses, a wireless local cycle station (WLL), etc. An UE 115 may have the ability to communicate with macroeNBs, picoeNBs, femtoeNBs, relays and the like. A UE 115 may also have the ability to communicate with different types of access networks, such as cellular or other access networks
[0097] [0097] Each component carrier can be provided via a licensed radio spectrum band or an unlicensed radio spectrum band and a set of component carriers used in a particular mode of communication can be fully received (for example , in an UE 115) through a licensed radio spectrum band, completely received (for example, in an UE 115) through an unlicensed radio spectrum band or can be received (for example, in an UE 115) through a combination of a licensed radio spectrum band and an unlicensed radio spectrum band.
[0098] [0098] Communication links 125 shown on wireless communication system 100 may include uplink channels (using component carriers) to carry uplink (UL) communications (e.g., transmissions from an UE 115 to a base station 105) and / or downlink channels (using component carriers) to carry downlink (DL) communications (e.g., transmissions from a base station 105 to a UE 115). UL communications or transmissions may also be referred to as reverse link communications or transmissions, while DL communications or transmissions may be referred to as forward link communications or transmissions. Downlink communications and / or uplink communications can be made using a licensed radio spectrum band, an unlicensed radio spectrum band or cliffs.
[0099] [0099] In some examples of the wireless communication system 100, the LTE / LTE-A can be installed in different situations with the use of an unlicensed radio spectrum band. Installation situations may include a complementary downlink mode in which LTE / LTE-A downlink communications in a licensed radio spectrum band can be downloaded into an unlicensed radio spectrum band, an aggregation mode carrier in which both the downlink communication and the LTE / LTE-A upward communication can be downloaded from a licensed radio spectrum band to an unlicensed radio spectrum band and / or an autonomous mode in the which LTE / LTE-A uplink and downlink communications between a base station 105 and an UE 115 can occur in an unlicensed radio spectrum band. Base stations 105 as well as UES 115 may, in some instances, support one or more of these or similar modes of operation. OFDMA waveforms can be used on communication links 125 for LTE / LTE-A downlink communications in a licensed radio spectrum band and / or an unlicensed radio spectrum band, while OFDMA, SC-FDMA and / or interlocking resource block FDMA waveforms can be used on communication links 125 for LTE / LTE-A uplink communications in a licensed radio spectrum band and / or in an unlicensed radio spectrum band.
[0100] [0100] Figure 2 shows a wireless communication system 200 in which the LTE / LTE-A is installed in different situations using an unlicensed radio spectrum band in accordance with various aspects of the present disclosure. More specifically, Figure 2 illustrates examples of a complementary downlink mode, a carrier aggregation mode and a stand-alone mode in which LTE / LTE-A is installed using an unlicensed radio spectrum band. The wireless communication system 200 can be an example of portions of the wireless communication system 100 described with reference to Figure 1. Furthermore, a first base station 205 and a second base station 205-a can be examples of aspects of one or more of the base stations 105 described with reference to Figure 1, whereas a first UE 215, a second UE 215-a, a third UE 215-b and a fourth UE 215-C can be examples of aspects one or more among the UEs 115 described with reference to Figure 1.
[0101] [0101] In the example of a complementary downlink mode in the wireless communication system 200, the first base station 205 can transmit OFDMA waveforms to the first UE 215 using a downlink channel 220. The downlink channel 220 can be associated with a frequency F1 in an unlicensed radio spectrum band. The first base station 205 can transmit OFDMA waveforms to the first UE 215 using a first two-way link 225 and can receive SC-FDMA waveforms from the first UE 215 using the first two-way link 225 The first bidirectional link 225 can be associated with an F4 frequency in a licensed radio spectrum band. The downlink channel 220 in the unlicensed radio spectrum band and the first bidirectional link 225 in the licensed radio spectrum band can operate concurrently.
[0102] [0102] In an example of a carrier aggregation mode in the wireless communication system 200, the first base station 205 can transmit OFDMA waveforms to the second UE 215-a using a second bidirectional link 230 and can receive OFDMA waveforms, SC-FDMA waveforms and / or interwoven FDMA waveforms from the second UE 215-a resource block using the second bidirectional link 230. The second bidirectional link 230 can be associated with frequency Fl in the unlicensed radio spectrum band. The first base station 205 can also transmit OFDMA waveforms to the second UE 215-a using a third bidirectional link 235 and can receive SC-FDMA waveforms from the second UE 215-a using of the third bidirectional link 235. The third bidirectional link 235 can be associated with an F2 frequency in a licensed radio spectrum band. The second bidirectional link 230 can provide a downlink and uplink capacity discharge for the first base station 205. As with the supplemental downlink described above, this situation can occur with any service provider (for example, MNO) that uses a licensed radio frequency spectrum that needs to alleviate some of the traffic and / or signaling congestion.
[0103] [0103] In another example of a carrier aggregation mode in wireless communication system 200, the first base station 205 can transmit OFDMA waveforms to the third UE 215-b using a fourth bidirectional link 240 and can receive OFDMA waveforms, SC-FDMA waveforms and / or interlaced resource block waveforms from the third UE 215-b using the fourth bidirectional link 240. The fourth bidirectional link 240 can be associated with an F3 frequency in the unlicensed radio spectrum band.
[0104] [0104] As described above, a type of service provider that can benefit from the capacity discharge offered with the use of LTE / LTE-A in the shared access radio spectrum is a traditional MNO that has access rights to a band of licensed LTE / LTE-A radio spectrum. For these service providers, an operational example may include an initiated mode (for example, complementary downlink, carrier aggregation) that uses the primary LTE / LTE-A component carrier (PCC) in the licensed radio spectrum band and at least one secondary component carrier (SCC) in the unlicensed radio frequency spectrum band.
[0105] [0105] In carrier aggregation mode, data and control can, for example, be communicated in the licensed radio frequency spectrum (for example, via the first bidirectional link 225, the third bidirectional link 235 and the fifth bidirectional link 245 ) while data can be communicated, for example, in the unlicensed radio spectrum band (for example, via the second bidirectional link 230 and the fourth bidirectional link 240). The carrier aggregation mechanisms supported when using a shared access radio frequency spectrum may be included in a time division duplexing and hybrid frequency division duplexing (FDD-TDD) or a carrier aggregation TDD-TDD with different symmetry in component carriers.
[0106] [0106] In an example of an autonomous mode on the wireless communication system 200, the second base station
[0107] [0107] In some examples, a transmission apparatus, such as one of the base stations 105, 205 and / or 205-a described with reference to Figures 1 and / or 2, and / or one among UES 115, 215, 215-a, 215-b and / or 215-C described with reference to Figures 1 and / or 2, you can use a switching interval to gain access to a channel in an unlicensed radio spectrum band (for example, physical channel of the unlicensed radio frequency band). The switching interval can define the application of a conflict-based protocol, such as an LBT protocol based on the LBT protocol specified in the European Telecommunications Standards Institute (ETSI) (EN 301 893). When using a switching interval that defines the application of an LBT protocol, the switching interval can indicate when a transmission device needs to perform a conflict procedure, such as a free channel assessment procedure (CCA). The result of the CCA procedure may indicate to the transmission device the possibility that a channel from an unlicensed radio frequency band is available or in use for the switching interval (also called an LBT radio frame or a CCA frame ). When a CCA procedure indicates that the channel is available (for example, "free" for use) for a corresponding LBT radio frame, the transmitting apparatus may reserve and / or use that of the unlicensed radio spectrum band during the entire LBT radio frame, or during part of it. When the CCA procedure indicates that the channel is not available (for example, when it indicates that the channel is in use or reserved by another device), you can prevent the transmitting device from using the channel during the LBT radio frame. .
[0108] [0108] In some cases, it may be useful for a transmitting device to generate an access switching interval on a periodic basis and synchronize at least one access switching interval with at least one periodic frame structure.
[0109] [0109] Figure 3 shows examples 300 of a switching interval (or LBT radio frame) for a cellular downlink in an unlicensed radio spectrum band in accordance with various aspects of the present disclosure. A first switching interval 305, a second switching interval 315 and / or a third switching interval 325 can be used as a periodic switching interval by an eNB or UE that supports transmissions through the unlicensed radio spectrum band. Examples of such an eNB may include base stations 105, 205 and / or 205-a described with reference to Figures 1 and / or 2, and examples of such an UE may include UES 115, 215, 215-a, 215- b and / or 215-C described with reference to Figures 1 and / or 2. The first switching interval 305, the second switching interval 315 and / or the third switching interval 325 can be used, in some examples, with the system wireless communication devices 100 and / or 200 described with reference to Figures 1 and / or 2.
[0110] [0110] As an example, the duration of the first switching interval 305 is shown as equal (or approximately equal) to the duration of an LTE / LTE-A 310 radio frame of a periodic frame structure associated with a link cell descendant. In some examples, "approximately equal" means that the duration of the first switching interval 305 is within a cyclic prefix duration (CP) of the periodic frame structure duration.
[0111] [0111] At least one limit of the first switching interval 305 can be synchronized with at least one limit of the periodic frame structure that includes the LTE / LTE-A radio frames N-1 to N + 1. In some cases, the first periodic access switching interval 305 may have limits that are aligned with the frame limits of the periodic frame structure. In other cases, the first switching interval 305 may have limits that are synchronized with the frame limits of the periodic frame structure, but offset from them. For example, the limits of the first switching interval 305 can be aligned with the subframe limits of the periodic frame structure or the subframe intermediate point limits (for example, the intermediate points of particular subframes) of the periodic frame structure.
[0112] [0112] In some cases, the periodic frame structure may include radio frames from LTE / LTE-A N-1 to N + 1. Each LTE / LTE-A 310 radio frame can have a duration of ten milliseconds, for example, and the first switching interval 305 can also have a duration of ten milliseconds. In such cases, the limits of the switching interval 305 can be synchronized with the limits (for example, the frame limits, the subframe limits or the subframe midpoint limits) of one of the LTE / LTE- radio frames A (for example, the LTE / LTE-A (N) radio frame).
[0113] [0113] As an example, the durations of the second switching interval 315 and the third switching interval 325 are shown as sub-multiple (or approximate sub-multiple) of the duration of the periodic frame structure associated with the cell downlink. In some instances, an "approximate submultiple" means the duration of the second switching interval 315 and / or the third switching interval 325 is within a cyclic prefix duration (CP) of the duration of a submultiple (for example, half or one fifth) of the periodic table structure. For example, the second switching interval 315 may have a duration of five milliseconds and the third switching interval 325 may have a duration of two milliseconds. The second switching interval 315 or the third switching interval 325 can be advantageous over the first switching interval 305 due to the fact that the shorter duration of the switching interval can facilitate the more frequent sharing of an unlicensed radio spectrum band .
[0114] [0114] Figure 4 shows an example 400 of wireless communication 410 over an unlicensed radio spectrum band, in accordance with various aspects of the present disclosure. An LBT radio frame 415 that can correspond to a switching interval, such as the first switching interval 305 described with reference to Figure 3, can have a duration of ten milliseconds and can include several downlink subframes 420, several uplink subframes 425 and two types of special subframes, a subframe S 430 and a subframe S '435. Subframe S 430 can provide a transition between downlink subframes 420 and uplink subframes 425, whereas subframe S '435 can provide a transition between uplink subframes 425 and downlink subframes 420. During subframe S' 435, a downlink free channel evaluation (DCCA) procedure 440 can be performed by one or more base stations, such as one or more of the base stations 105, 205 and / or 205-a described with reference to Figures 1 and / or 2 to reserve, for a period of time, the channel through from which wireless communication 410 occurs. Following a successful 440 DCCA procedure by a base station, the base station can transmit a 445 channel-use radio beacon signal (CUBS) 445 to provide an indication to other base stations and / or devices (for example, example, UES, W1-Fi access points, etc.) from which the base station has reserved the channel. In some examples, a CUBS 445 can be transmitted using a plurality of interlocking resource blocks. Transmitting a CUBS 445 in this manner can enable the CUBS 445 to occupy at least a certain percentage of the available frequency bandwidth in the unlicensed radio spectrum band and can satisfy one or more regulatory requirements (for example, a requirement in CUBS 445 occupies at least 80% of the available frequency bandwidth). In some examples, CUBS 445 may take a shape similar to that of an LTE / LTE-A specific cell reference signal (CRS) and / or a channel status information reference signal (CSI-RS).
[0115] [0115] Subframe S '435 can include 14 OFDM symbols, numbered 0 to 13 in Figure 4. A first portion of subframe S' 435, symbols 0 to 5 in this example, can be used by base stations as a period of Silent DL, which may be required for compatibility with LTE / LTE-A communication standards.
[0116] [0116] where Group ID is an "installation group id" assigned to base station 105, et is the LBT radio frame number corresponding to a switching interval or frame for which the DCCA 440 procedure is performed.
[0117] [0117] Figure 5 shows an example 500 of wireless communication 510 over an unlicensed radio spectrum band, in accordance with various aspects of the present disclosure. An LBT radio frame 515 that can correspond to a switching interval, such as the first switching interval 305 described with reference to Figure 3 and / or the LBT radio frame 415 described with reference to Figure 4, may have ten milliseconds in duration and may include several downlink subframes 520, several uplink subframes 525 and two types of special subframes (for example, an S 530 subframe and an S '535 subframe). Subframe S 530 can provide a transition between downlink subframes 520 and uplink subframes 525, while subframe S '535 can provide a transition between uplink subframes 525 and downlink subframes 520. During the S 530 subframe, an uplink CCA (UCCA) 540 procedure can be performed by one or more UES, such as one or more among UES 115, 215, 215-a, 215-b and / or 215- C described above with reference to Figures 1 and / or 2 to reserve, for a period of time, the channel through which wireless communication 510 occurs. Following the successful UCCA 540 procedure by a UE, the UE may transmit a CUBS 545 to provide an indication to other UES and / or devices (for example,
[0118] [0118] The S 530 subframe can include 14 OFDM symbols, numbered 0 to 13 in Figure 5. A first portion of the S 530 subframe, the symbols 0 to 3 in this example, can be used as a downlink pilot time slot (DwPTS) 550, and a second portion of subframe S 530 can be used as a guard period (GP) 555. A third portion of subframe S 530 can be used for the UCCA 540 procedure. In example 500, subframe S 530 includes seven UCCA spaces, included in symbols 6 to 12. The use of UCCA spaces for different UES can be coordinated in order to provide more efficient system operation. In some examples, in order to determine which of the seven possible UCCA spaces should be used to perform a UCCA 540 procedure, a UE can evaluate a formula mapping function: FdGroupID, t) E {1,2,3, 4,5,6,7}
[0119] [0119] where Group ID is an "installation group id" assigned to the UE, and t is the LBT radio frame number corresponding to a frame for which a UCCA 540 procedure is performed.
[0120] [0120] The mapping function for a DCCA 440 procedure and / or a UCCA 540 procedure can be constructed based on different criteria, depending on whether the mapping function has an orthogonalization or non-orthogonalization property. In the examples with orthogonal LBT access, the mapping function can have an orthogonalization property according to: FmÁx, t) * Fmj (v, t) GmupID x, y E {1,2,3,4,5,6 , 7}
[0121] [0121] for all times t, whenever x ¥ y represents different group ids. In this case, base stations and / or UES with different group ids can perform CCA procedures (for example, DCCA 440 procedures and / or UCCA 540 procedures) during non-overlapping CCA spaces. In the absence of interference, the base station or UE with the group id that maps to a previous CCA space can guarantee the channel for a period of time. According to various installations, the mapping function is fair, which means that over different time indices the mapping {Fd / u (vi), t = 1, 2, 3, ...} varies so that different group ids have an equal chance of mapping to a previous CCA space (and therefore guarantee the channel in the absence of other interference) over a suitably long period of time.
[0122] [0122] All base stations and UES installed by the same network operator / service provider can be assigned the same group id, so that one does not take the place of the other in the conflict process.
[0123] [0123] In the examples with access to the non-orthogonal or non-overlapping CCA space, the mapping function can allow more than seven group ids. In some situations, for example, it may be useful to support more than seven installation group ids, in which case it is not possible to maintain the orthogonality property of CCA space mapping functions. In such cases, it may be desirable to reduce the collision frequency between any two group ids. In some instances, non-orthogonal CCA space mapping sequences can also be used to provide fair channel access between facilities without precise coordination on LBT opportunities. An example of a non-orthogonal CCA space mapping sequence is provided by: Fdaj (x, t) = R / .7 (r, t) GrUupID x = e {1,2,.,. 216}
[0124] [0124] where Rl, 7 (x, t) is a pseudocardinal number generator between 1 and 7 chosen independently for Group ID x. In that case, there may be potential collisions between base stations and / or UEs of different Group IDS in the same LBT t radio frame.
[0125] [0125] In this way, the CCA spaces can be selected, according to the mapping functions verified and used for a DCCA 440 procedure and / or one for a UCCA 540 procedure.
[0126] [0126] In each of Figures 4 and 5, the period between the successful completion of a DCCA 440 procedure and the start of a transmission period for which the DCCA 440 procedure was performed (see, for example, Figure 4) or the period between the successful completion of a UCCA 540 procedure and the start of a transmission period for which the UCCA 540 procedure was performed (see, for example, Figure 5) can be called of a preamble. Because of the variability at the time a DCCA 440 procedure or a UCCA 540 procedure is performed, the length of a preamble can vary. However, in each of the examples shown in Figures 4 and 5, the preamble then ends the transmission of CUBS 445 (see, for example, Figure 4) or CUBS 545 (see, for example, Figure 5).
[0127] [0127] Figure 6 shows an example 600 of resource allocations for CCA exemption transmissions (CETS) from synchronous operators in an unlicensed radio spectrum band, in accordance with various aspects of the present disclosure; A CET can be performed without the need to perform a CCA (for example, a DCCA or an uplink CCA (UCCA)) to first obtain access to the unlicensed radio spectrum band. Instead, an operator is exempt from performing a CCA for the purpose of transmitting a CET.
[0128] [0128] As shown, an allocation of 605 resources to CETs can be made, for example, once every eight milliseconds (80 ms) or once every CET period, where the CET period can have a configurable periodicity. Each of the various operators in the unlicensed radio spectrum band (for example, different PLMNS) can be provided with a subframe (shown) or separate subframes (not shown) to transmit CETS. As an example, Figure 6 shows adjacent CET subframes for seven different operators (for example, PLMNI, PLMN2, ..., PLMN7 operators). Such a CET transmission framework may be applicable to a downlink and / or uplink between a base station and a UE.
[0129] [0129] In some examples of an LBT-LBE protocol, a transmission device can perform a CCA procedure and, when the CCA procedure is successful, it immediately begins transmission through a channel of a spectrum band. unlicensed radio frequency. However, when the CCA procedure is unsuccessful, the transmitting apparatus can perform an extended CCA procedure by selecting a random integer, N, between 1 and q, where q has a value of 4 <q < 32 announced by an operator or supplier.
[0130] [0130] In most conditions, the use of an LBT-FBE protocol by a transmission device provides sufficient access to an unlicensed radio spectrum band. The use of a lbt-fbe protocol can be advantageous in that it makes it possible to reuse frequency 1 among the base stations or eNBs associated with the same operator. However, in certain situations, one or more W1-Fi nodes may prevent an LTE / LTE-A node from accessing a channel in an unlicensed radio spectrum band. In these situations, the use of an LBT-LBE protocol can be advantageous over an LBT-FBE protocol (despite the fact that the use of an LBT-LBE protocol can prevent frequency 1 reuse in some conditions) by the fact that a transmission device may persistently attempt to access the unlicensed radio spectrum band while using an LBT-LBE protocol. For example, the broadcasting apparatus may attempt to access the media for a random duration of N CCA procedures, but for a maximum duration controlled by parameter q. A lower value of q implies a shorter maximum duration of the extended CCA procedure and a shorter radio frame length. A disadvantage of an LBT-LBE protocol compared to an LTB-FBE protocol is the fact that the random integer, N, on which an extended CCA procedure is based provides asynchronous operation of a plurality of transmitters, the which potentially leads to inefficient operation (for example, loss of dimension). P
[0131] [0131] A transmission device capable of using an LBT-FBE protocol in most conditions, and an LBT-LBE protocol when necessary, may be useful in some wireless communication systems.
[0132] [0132] Figure 7 shows a timing diagram 700 for wireless communications over an unlicensed radio frequency spectrum band, in accordance with various aspects of the present disclosure. In some instances, the unlicensed radio frequency band may be a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available, at least partially, for use not licensed (for example, use of W1-Fi and / or use of LTE / LTE-A in an unlicensed radio spectrum band).
[0133] [0133] As an example, the wireless communications shown in Figure 7 include communications (or transmissions (Tx)) through an operator 1, an operator 2 and a W1-Fi node. As an additional example, the transmitters of operator 1 and operator 2, as well as the node
[0134] [0134] In some examples, Operator 1 and Operator 2 transmitters can gain access to the non-licensed radio frequency spectrum band (or a channel therein) by performing an extended CCA procedure identified as NxCCA. Access is obtained only when an extended CCA procedure is successful
[0135] [0135] In some examples, each radio frame transmitted by Operator 1 or Operator 2 can be an LTE / LTE-A radio frame that has 10 subframes and a duration of 10 ms. Each subframe can include, for example, fourteen OFDM symbols. Subframes can include data subframes, uplink subframes or special subframes in a variety of ways (for example, subframes used to transmit control information, synchronization signals, some data, etc.).
[0136] [0136] The use of an LBT-LBE protocol (for example, operating in an LBT-LBE operating mode over an unlicensed radio frequency spectrum band) does not necessarily impact on radio resource management (RRM) measurements ), due to the fact that measurements can be performed on a CET transmitted by a transmission device. However, for reference and control channel transmissions, reference and control channel transmissions over an unlicensed radio frequency band can be defined based on the start (for example, a frame limit) of a LBT radio board. Thus, the use of an LBT-LBE protocol can impact an upper layer control signaling project, such as the configuration of channel state information (CSI) resources. This can be addressed (when using both an LBT-LBE protocol and an LBT-FBE protocol) by transmitting a signal to pass location information on overload signals in relation to the timing of a radio frame boundary . In some examples, the signal to pass location information for overload signals in relation to the timing of a radio frame limit may include radio resource control (RRC) signaling. In some instances, the signal to pass location information from overload signals in relation to the timing of a radio frame limit may pass location information to a downlink control channel in relation to the radio frame limit and / or location information for resources used for CSI feedback. In some instances, the signal to pass location information for overload signals in relation to the timing of a radio frame limit may be provided in a CUBS and / or a CUBS may include the downlink control channel, with the information indicates a configuration and CSI and / or the resources used for CSI feedback.
[0137] [0137] While using an LBT-LBE protocol, it may be useful to transmit downlink concessions in a secondary service cell (for example, over an unlicensed radio spectrum band, with data in a physical channel of enhanced downlink control (EPDCCH) or a new control channel), due to the fact that cross carrier scheduling can be problematic due to a possible lack of subframe alignment between a primary service cell and the service cell secondary.
[0138] [0138] In some examples, a UE operating under an LBT protocol may detect a base station or an eNB discovery signal (for example, a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and / or a dedicated reference signal (DRS) in a CET transmitted by the base station or eNB. Upon detection of the discovery signal, the UE may assume an OFDM symbol period delay based on the detected discovery signal. During operation under an LBT-FBE protocol, the subframe timing may not differ from one or LBT frame to another. However, subframe timing may, in some cases, differ from one LBT radio frame to another during operation under an LBT-LBE protocol. A UE capable of operating under either an LBT-FBE protocol or an LBT-LBE protocol may therefore not assume subframe or frame timing based on the detection of a discovery signal.
[0139] [0139] In some examples of the wireless communication system 100 and / or 200 described with reference to Figure 1 and / or 2, it may be desirable to use a preamble such as the preamble described with reference to Figure 4 and / or 5 to transmit information (for example, N bits of information) across a channel in a radio frequency spectrum band. For example, information can be transmitted with a signal that indicates the access (for example, the reserve) of a channel in the radio frequency spectrum band. In some examples, the signal indicating access to the channel in the radio frequency band may include a CUBS, such as CUBS 445 and / or 545 described with reference to Figure 4 and / or 5.
[0140] [0140] The information transmitted may include various types of information. In some examples, the information may include a cell identifier (ID), a public land mobile network ID (PLMN) or a combination thereof. In some examples, the information may indicate a frame structure for transmission in the radio frequency band (for example, the LBT radio frame duration). In some examples, the information may indicate several subframes and / or symbols that will be used for transmission in a frame structure in the radio spectrum band (for example, five subframes are used for transmission over a ten millisecond frame duration. which includes ten subframes). An indication of several subframes and / or symbols that will be used for transmission in a frame structure in the radio frequency spectrum band can enable a receiving device, such as a UE, to enter a low energy state in a while previous (for example, immediately after receiving the transmitted subframes), thereby saving energy.
[0141] [0141] In some examples, information can be transmitted with a signal indicating access to a channel in the radio spectrum band by transmitting the information as part of the signal indicating access to the channel in the radio spectrum band ( for example, as part of a CUBS).
[0142] [0142] In other examples in which information is transmitted as part of a signal indicating the access of a channel in the radio spectrum band (for example, as part of a CUBS), the information can be transmitted by selecting a phase from a plurality of phases for signal transmission. The selected phase can correspond to the information to be transmitted, whereas other phases in the plurality of phases can correspond to different information. In another example, different phase shifts between a plurality of signals that indicate access to a channel in the radio frequency band can correspond to different information to be transmitted.
[0143] [0143] In some examples, information can be transmitted with a signal (for example, a CUBS) that indicates access to a channel in the radio frequency spectrum band by transmitting information in a second signal, the second signal being it can be transmitted along with the signal indicating access to a channel in the radio frequency spectrum band. In some examples, the second signal can be interlaced with the signal indicating access to a channel in the radio frequency spectrum band, or transmitted adjacent to it, as described with reference to Figure 8.
[0144] [0144] Figure 8A shows an example 800 of how information can be transmitted with a first signal 805 (for example, a CUBS) indicating access to a channel in a radio frequency spectrum band, in accordance with various aspects of present revelation;
[0145] [0145] As shown, the first signal 805 can be transmitted as a plurality of tones (for example, a first tone 805-a, a second tone 805-b, a third tone 805-C, a fourth tone 805-d, a fifth tone 805- and a sixth tone 805-f, a seventh tone 805-ge / or an eighth tone 805-h) with the use of a first plurality of resource blocks interlaced in the frequency domain. In some examples, the first signal 805 can be transmitted using plus, minus and / or different tones. Transmitting the first 805 signal in this way can enable the first 805 signal to occupy at least a certain percentage of the frequency bandwidth available in the radio frequency spectrum band and satisfy one or more regulatory requirements (for example, a requirement that the first signal 805 occupies at least 80% of the available frequency bandwidth). The first signal 805 can take a shape similar to that of an LTE / LTE-A specific cell reference signal (CRS) and / or a channel status information reference signal (CSI-RS).
[0146] [0146] Information can be transmitted on a second 810 signal. The second 810 signal can also be transmitted as a plurality of tones (for example, a ninth tone 810-a, a tenth tone 810-b, an eleventh tone 810 -c, a twelfth tone 810-d, a thirteenth tone 810-e, a fourteenth tone 810-f, a fifteenth tone 810-g and / or a sixteenth tone 810-h) with the use of a second plurality of resource blocks interlaced in the frequency domain. In some instances, the second signal 810 can be transmitted using plus, minus and / or different tones. The second signal 810 may, in some examples, assume a shape similar to that of an LTE / LTE-A physical control format indicator channel (PCFICH).
[0147] [0147] As shown, the first signal 805 and the second signal 810 can be transmitted during a single OFDM symbol period of the radio spectrum band. The first signal 805 can provide automatic gain control (AGC) information to the second signal 810.
[0148] [0148] Figure 8B shows an example 850 of how information can be transmitted with a first 855 signal (for example, a CUBS) that indicates access to a channel in a radio frequency spectrum band in accordance with various aspects of this revelation;
[0149] [0149] As shown, the first signal 855 can be transmitted as a plurality of tones (for example, a first tone 855-a, a second tone 855-b, a third tone 855-C, a fourth tone 855-d, a fifth tone 855- and a sixth tone 855-f, a seventh tone 855-g, an eighth tone
[0150] [0150] Information can be transmitted on a second 860 signal. The second 860 signal can also be transmitted as a plurality of tones (for example, a seventeenth tone 860-a, an eighteenth tone 860-b, a nineteenth tone tone 860-C, a twenty-two tone 860-d, a twenty-first tone 860-e, a twenty-second tone 860-f, a twenty-third tone 860-ge / or a twenty-fourth tone 860-h) using a second plurality of resource blocks interlaced in the frequency domain. In some examples, the second signal 860 can be transmitted using more, less and / or different tones. The second signal 860 may, in some instances, take a shape similar to that of an LTE / LTE-A physical control format indicator channel (PCFICH).
[0151] [0151] As shown, c) first signal 855 can be transmitted during a first OFDM symbol period of the radio spectrum band and a second OFDM symbol period of the radio spectrum band, and the second signal 860 can be transmitted during the second OFDM symbol period of the radio spectrum band. In some examples, the first OFDM symbol period of the radio spectrum band and the second OFDM symbol period of the radio spectrum band may be adjacent to the OFDM symbol periods (as shown). The first signal 855 can provide AGC information and / or a phase reference for the second signal 860.
[0152] [0152] Figure 9 shows an example 900 of how information indicating various antennas to be used to receive a transmission carried on a component carrier can be determined and used, in accordance with various aspects of the present disclosure. More particularly, Figure 9 shows a LBT 915 radio frame (or switching interval) for the transmission of a first component carrier (CCl) and a second component carrier (CC2) in an unlicensed radio frequency band . Once a base station resolves the conflict to access the first CCl component carrier and / or the second CC2 component carrier, the base station can transmit a signal indicating access to the first CCl component carrier and / or the second carrier of component CC2 in the radio spectrum band not licensed to a UE. In some examples, the base station can be an example of one or more aspects of base station 105, 205 and / or 205-a described with reference to Figure 1 and / or 2, and / or the UE can be an example of one or more aspects of UE 115, 215, 215-a, 215-b and / or 215-C described with reference to Figure 1 and / or 2.
[0153] [0153] As an example, each of the first CCl component carrier and the second CC2 component carrier may have a frame structure similar to the frame structure shown in Figure 4. For example, the frame structure of each between the first CCl component carrier and the second CC2 component carrier can include several 920 or 925 downlink subframes, several 930 or 935 uplink subframes and two types of special subframes, an S 940 or 945 subframe and an S subframe '950 or 955. Subframe S 940 or 945 can provide a transition between downlink subframes 920 or 925 and uplink subframes 930 or 935, while subframe S' 950 or 955 can provide a transition between uplink subframes 930 or 935 and downlink subframes 920 or 925. In other examples, both the first CCl component carrier and the second CC2 component carrier, or one within and they may have a frame structure that differs more substantially from the frame structure shown in Figure
[0154] [0154] During subframes S '950 and 955, a base station may perform a first DCCA 905 procedure (for example, a first conflict procedure) to conflict over access to the first CCl component carrier in a spectrum band. unlicensed radio frequency during the LBT 915 radio frame. Similarly, the base station can perform a second DCCA 910 procedure (for example, a second conflict procedure) to conflict over access to the second CC2 component carrier on a unlicensed radio spectrum band during the LBT 915 radio frame. After resolving the conflict to transmit both the first CCl component carrier and the second CC2 component carrier during the LBT 915 radio frame (not shown), the base station can transmit data on both the first CCl component carrier and the second CC2 component carrier to a UE in the unlicensed radio spectrum band The. For example, data transmission on the first CCl component carrier through the base station can employ two antennas from the base station, and data transmission on the second CC2 component carrier can employ two additional antennas from the base station. Similarly, the UE that receives the transmission carried on the first CCl component carrier and the second CC2 component carrier in the unlicensed radio spectrum band can employ two antennas to receive the transmission carried on the first CCl component carrier and can employ two additional antennas to receive the transmission carried on the second component carrier CC2. In some examples, the UE may reserve the two antennas to receive the broadcast carried on the first CCl component carrier during the LBT 915 radio frame and may reserve the two additional antennas to receive the broadcast carried on the second CC2 component carrier during the LBT 915 radio frame, without being aware of the possibility that the first CCl component carrier and / or the second CC2 component carrier carry a transmission during the LBT radio frame
[0155] [0155] As an example, Figure 9 illustrates a situation where the first DCCA 905 procedure results in failure of the conflict solution to access the first CCl component carrier, and the second DCCA 910 procedure results in resolving the conflict to access the second CC2 component carrier. Assuming that a UE to which a base station transmits data on the second CC2 component carrier in the unlicensed radio spectrum band has reserved two antennas to receive data on the first CCl component carrier during the LBT 915 radio frame and has reserved two additional antennas to receive data on the second CC2 component carrier during the LBT 915 radio frame, the two antennas reserved by the UE to receive data on the first CCl component carrier may not be used during the LBT 915 radio frame However, if the base station can transmit information indicating several antennas to be used to receive a transmission carried on the first CCl component carrier and / or the second CC2 component carrier, the UE may be able to employ both antennas reserved to receive data on the first CCl component carrier in order to receive data on the second CC2 component carrier throughout radio frame of LBT 915, or during part of it. In this way, for example, the base station can instruct the UE to use four 965 antennas to receive a data transmission ported on the second component carrier CC2 during the LBT 915 radio frame.
[0156] [0156] The base station may, in some instances, transmit information to the UE with a CUBS 960. The transmitted information may include an indication to use four 965 antennas to receive a transmission carried on the second component carrier CC2 during the radio frame of LBT 915. In other examples, the UE can automatically determine several antennas to be used to receive a transmission carried on the first CCl component carrier and / or the second CC2 component carrier. Autonomous determination can be based, for example, on
[0157] [0157] In some examples, when several antennas to be used to receive a transmission carried on a component carrier are set, a pre-coding matrix, a classification and / or a modulation and coding scheme (MCS) for a Data transmission carried on the component carrier can be adjusted based, at least partially, on the various antennas to be used to receive the transmission carried on the component carrier in a radio frequency spectrum band. In some instances, an increase in the number of antennas to be used to receive a transmission carried on a component carrier may enable an increase in the MCS, consequently, an increase in the data rate.
[0158] [0158] Figure 10 shows an example 1000 of how information indicating various antennas to be used to receive a transmission carried on a component carrier can be determined and used, in accordance with various aspects of the present disclosure. More particularly, Figure 10 shows a LBT 1015 radio frame (or switching interval) for the transmission of a first component carrier (CCl) and a second component carrier (CC2) in an unlicensed radio frequency band . Once a base station resolves the conflict to access the first CCl component carrier and / or the second CC2 component carrier, the base station can transmit a signal indicating access to the first CCl component carrier and / or the second carrier of component CC2 in the radio spectrum band not licensed to a UE. In some examples, the base station can be an example of one or more aspects of base station 105, 205 and / or 205-a described with reference to Figure 1 and / or 2, and / or the UE can be an example one or more aspects of UE 115, 215, 215-a, 215-b and / or 215-C described with reference to Figures 1 and / or 2.
[0159] [0159] As an example, each of the first CCl component carrier and the second CC2 component carrier may have a frame structure similar to the frame structure shown in Figure 4. For example, the frame structure of each between the first component carrier CCl and the second component carrier CC2 can include several downlink subframes 1020 or 1025, several uplink subframes 1030 or 1035 and two types of special subframes, a subframe S 1040 or 1045 and a subframe S '1050 or 1055. Subframe S 1040 or 1045 can provide a transition between downlink subframes 1020 or 1025 and uplink subframes 1030 or 1035, while subframe S' 1050 or 1055 can provide a transition between uplink subframes 1030 or 1035 and downlink subframes 1020 or 1025. In other examples, both the first CCl component carrier and the second component carrier te CC2, or one of them, may have a frame structure that differs more substantially from the frame structure shown in Figure 4.
[0160] [0160] During subframes S '1050 and 1055, a base station can perform a first DCCA 1005 procedure (for example, a first conflict procedure) to conflict over access to the first CCl component carrier in a spectrum band. unlicensed radio frequency during the LBT 1015 radio frame. Similarly, the base station can perform a second DCCA 1010 procedure (for example, a second conflict procedure) to conflict over access to the second CC2 component carrier on a unlicensed radio spectrum band during the LBT 1015 radio frame. After resolving the conflict to transmit both the first CCl component carrier and the second CC2 component carrier during the LBT 1015 radio frame, the base station can transmitting data on both the first CCl component carrier and the second CC2 component carrier to a UE in the unlicensed radio spectrum band.
[0161] [0161] The base station may, in some instances, transmit information indicating various antennas to be used to receive a transmission carried on the first CCl component carrier and / or the second CC2 component carrier. The information may, in some examples, be based on an uplink configuration and / or a downlink configuration of the first CCl component carrier and / or the second CC2 component carrier. In the situation shown in Figure 10, the information may instruct the UE to use the four antennas 1080 to receive a data transmission on the first component carrier CCl during subframes SF3 and SF4 of the LBT 1015 radio frame.
[0162] [0162] The base station may, in some instances, transmit the information to the UE with a first CUBS 1060 following the first successful DCCA procedure 1005 and / or with a second CUBS 1065 following the second successful DCCA procedure 1010. The information transmitted may include the indication to use the four antennas 1080 to provide data transmission on the first component carrier CCl during subframes SF3 and SF4 of the LBT 1015 radio frame. In other examples, the UE may automatically determine several antennas to be used to receive a broadcast carried on the first CCl component carrier and / or the second CC2 component carrier. Autonomous determination can be based, for example, on an autonomous UE determination of the possibility that the base station has resolved the conflict to access the first CCl component carrier and / or the second CC2 component carrier (for example, based on in detecting a CUBS transmitted through each of the first CCl component carrier and / or the second CC2 component carrier) and / or the uplink and downlink configuration of the first CCl component carrier and / or the second component carrier CC2.
[0163] [0163] In some examples, when the number of antennas to be used to receive a transmission carried on a component carrier is set, a pre-coding matrix, a rating and / or an MCS for data transmission through the carrier components can be adjusted based, at least partially, on the number of antennas to be used to receive the component carrier in a radio frequency spectrum band. In some instances, an increase in the number of antennas to be used to receive a transmission carried on a component carrier may enable an increase in the MCS, consequently, an increase in the data rate.
[0164] [0164] In some examples of the wireless communication system 100 and / or 200 described with reference to Figure 1 and / or 2, a successful conflict procedure (for example, a DCCA procedure, extended DCCA procedure, a UCCA procedure or an extended UCCA procedure) can be completed before a limit of an upcoming OFDM symbol period. When an apparatus resolves the conflict for a radio frequency band during the conflict procedure, it may be desirable to transmit a signal across the radio frequency band. The signal can be used to reserve the radio frequency spectrum band during the time between the completion of the conflict procedure and the start of the next OFDM symbol period. In some instances, the start of such a signal may not coincide with a period, space, OFDM symbol subframe or other reference limit, and the length of such a signal may be variable due to variations between the timing of when a conflict procedure is successfully completed and a reference threshold is timed following the successful completion of the conflict procedure. Figures 11A, 11B and 11C, 12, 13, 14 and 15 illustrate examples of such a sign.
[0165] [0165] Figure 11A shows an example 1100 of how a first signal can be transmitted to align a start point of a second signal to a reference limit associated with a radio frequency spectrum band, in accordance with various aspects of the present disclosure . More particularly, Figure 11A shows a plurality of OFDM symbol periods limited by a plurality of OFDM symbol period limits 1105. OFDM symbol periods can include a first OFDM symbol period 1110 in which a DCCA 1120 (for example, a DCCA procedure similar to the DCCA 440 procedure described with reference to Figure 4) can be performed. OFDM symbol periods can also include a second OFDM symbol period 1115 in which a signal 1125 to indicate access to the radio spectrum band (for example, a CUBS similar to CUBS 445 described with reference to Figure 4) be transmitted. In some examples, the DCCA 1120 procedure can be performed at a variable time within the first OFDM 1110 symbol period. In some examples, a base station can perform the DCCA 1120 procedure and resolve the conflict to access the band. radio frequency spectrum, before a reference limit (for example, the OFDM 1130 symbol period limit) associated with the radio frequency spectrum band. In these examples, the base station can transmit a first 1135 signal (for example, a variable length training sequence that includes a first 1135-a unit training signal, a second 1135-b unit training signal and a third signal unit training code 1135-c) to align a second signal start point (for example, a CUBS 1125 start point) to the reference limit.
[0166] [0166] In some examples, the information as discussed above may be transmitted as part of the first 1135 signal (for example, as part of the first 1135-a unit training signal, the second 1135-b unit training signal and / or the third unit training signal 1135-C). In some examples, the first 1135 signal (for example, the first 1135-a unit training signal, the second 1135-b unit training signal and / or the third 1135-C unit training signal) may be usable for AGC by a UE.
[0167] [0167] In some examples, the first signal 1135 can be associated with a conflict priority (for example, a priority with which the DCCA 1120 procedure is performed), and the first signal 1135 can be transmitted over a portion of the first OFDM 1110 symbol period based, at least partially, on the conflict priority. For example, a base station that has a higher priority traffic or transmission class can be configured to conflict over access to a radio frequency spectrum band in an earlier portion of the first OFDM 1110 symbol period instead of a base station that has a traffic or transmission class with a lower priority. The first OFDM 1110 symbol period can provide relatively more or relatively less spaces to perform DCCA procedures and, in some examples, spaces to perform DCCA procedures can be provided in more than one OFDM symbol period. More space to perform DCCA procedures translates to more control over conflict priorities from different base stations.
[0168] [0168] Figure 11B shows an example 1150 of how a first signal can be transmitted to align a start point of a second signal to a reference limit associated with a radio frequency spectrum band in accordance with various aspects of the present disclosure. More particularly, Figure 11B shows a plurality of OFDM symbol periods limited by a plurality of OFDM symbol period limits 1105. OFDM symbol periods may include a first OFDM symbol period 1110 in which a DCCA 1155 (for example, a DCCA procedure similar to the DCCA 440 procedure described with reference to Figure 4) can be performed. OFDM symbol periods can also include a second OFDM symbol period 1115 in which a signal 1125 to indicate access to the radio spectrum band (for example, a CUBS similar to CUBS 445 described with reference to Figure 4) be transmitted.
[0169] [0169] In some examples, the DCCA 1155 procedure can be performed at a variable time within the first OFDM 1110 symbol period. In some examples, a base station can perform the DCCA 1155 procedure and resolve the conflict to access the radio frequency spectrum band, before a reference limit (for example, the OFDM 1130 symbol period limit) associated with the radio frequency spectrum band. In these examples, the base station can transmit a first 1135 signal (for example, a variable length training sequence that includes a first 1135-b unit training signal and a second 1135-C unit training signal) to align a starting point of a second signal (for example, a CUBS 1125 starting point) at the reference limit. Due to the fact that the timing of the DCCA 1155 procedure performed in example 1150 within the first OFDM 1110 symbol period is later than the timing of the DCCA 1120 procedure performed in example 1100, the length of the first signal described with reference to Figure 11B may be shorter than the length of the first signal described with reference to Figure 1IA.
[0170] [0170] In some examples, information, as discussed above, can be transmitted as part of the first 1135 signal (for example, as part of the first 1135-b unit training signal and / or the second 1135- unit training signal) Ç). In some examples, the first signal 1135 (for example, the first signal training unit 1135-b and / or the second signal training unit 1135-c) may be usable for AGC by a UE.
[0171] [0171] In some examples, the first signal 1135 can be associated with a conflict priority (for example, a priority with which the DCCA 1155 procedure is performed), and the first signal 1135 can be transmitted over a portion of the first OFDM 1110 symbology period based, at least partially, on the conflict priority. For example, a base station that has a higher priority traffic or transmission class can be configured to conflict over access to a radio frequency spectrum band in an earlier portion of the first OFDM 1110 symbol period instead of a base station that has a traffic or transmission class with a lower priority. The first OFDM 1110 symbol period can provide relatively more or relatively less space to perform DCCA procedures and, in some examples, spaces to perform DCCA procedures can be provided in more than one OFDM symbole period. More space to perform DCCA procedures translates to more control over conflict priorities from different base stations.
[0172] [0172] Figure 11C shows an example 1170 of how a first signal can be transmitted to align a start point of a second signal to a reference limit associated with a radio frequency spectrum band, in accordance with various aspects of the present disclosure . More particularly, Figure 11C shows a plurality of OFDM symbol periods limited by a plurality of OFDM symbol period limits 1105. OFDM symbol periods may include a first OFDM symbol period 1110 in which a DCCA 1175 (for example, a DCCA procedure similar to the DCCA 440 procedure described with reference to Figure 4) can be performed. OFDM symbol periods can also include a second OFDM symbol period 1115 in which a signal 1125 to indicate access to the radio spectrum band (for example, a CUBS similar to CUBS 445 described with reference to Figure 4) be transmitted.
[0173] [0173] In some examples, the DCCA 1175 procedure can be performed at a variable time within the first OFDM 1110 symbol period. In some examples, a base station can perform the DCCA 1175 procedure and resolve the conflict to access the radio frequency spectrum band, before a reference limit (for example, the OFDM 1130 symbol period limit) associated with the radio frequency spectrum band. In these examples, the base station can transmit a first 1135 signal (for example, a variable length training sequence that includes a 1135-C unit training signal) to align a start point of a second signal (for example, a CUBS 1125 boot point) to the reference limit. Due to the fact that the timing of the DCCA 1175 procedure performed in example 1170 within the first OFDM 1110 symbol period is later than the timing of the DCCA 1120 procedure or the DCCA 1155 procedure performed in example 1100 or 1150, the The length of the first signal described with reference to Figure 11C can be shorter than the length of the first signal described with reference to Figures 11A and / or 11B.
[0174] [0174] In some examples, the information, as discussed above, can be transmitted as part of the first 1135 signal (for example, as part of the 1135-C unit training signal). In some examples, the first signal 1135 (for example, the unit training signal 1135-c) may be usable for AGC by a UE.
[0175] [0175] In some examples, the first signal 1135 can be associated with a conflict priority (for example, a priority with which the DCCA 1175 procedure is performed), and the first signal 1135 can be transmitted over a portion of the first OFDM 1110 symbol period based, at least partially, on the conflict priority. For example, a base station that has a higher priority traffic or transmission class can be configured to conflict over access to a radio frequency spectrum band in an earlier portion of the first OFDM 1110 symbol period instead of a base station that has a traffic or transmission class with a lower priority. The first OFDM 1110 symbol period can provide relatively more or relatively less spaces to perform DCCA procedures and, in some examples, spaces to perform DCCA procedures can be provided in more than one OFDM symbol period. More space to perform DCCA procedures translates to more control over conflict priorities from different base stations.
[0176] [0176] In some examples of the wireless communication system 100 and / or 200 described with reference to Figure 1 and / or 2, transmissions between a base station and an UE can be made on LBT radio frames of different size , such as in LBT radio frames that last two milliseconds, five milliseconds and / or ten milliseconds. In some instances, it may be useful to do one or more overload channel transmissions at a time or moments and / or at a location and / or frequency locations, regardless of the length of the LBT radio frame. For example, it may be desirable to make one or more overload channel transmissions during one or more subframes regardless of a change in an LBT radio frame in which an LBT procedure occurs. The overload channels can include a CRS, eCRS, CSI-RS, synchronization signal and / or a system information block (SIB) broadcast channel.
[0177] [0177] Figure 12 shows a 1200 example of how a first signal can be transmitted while operating in an LBT-LBE operating mode in a radio frequency spectrum band, to align a start point of a second signal a reference limit associated with the radio frequency band in accordance with various aspects of the present disclosure. More particularly, Figure 12 shows a radio frame of LBT-LBE 1205 that has a duration of 2 ms. The LBT-LBE 1205 radio frame may include a first LTE / LTE-A 1210 subframe and a second LTE / LTE-A 1215 subframe, each of which has a duration of 1 ms. Each of the first LTE / LTE-A 1210 subframe and the second LTE / LTE-A 1215 subframe may include a number of OFDM symbol periods 1220 (e.g., 14 OFDM symbol periods) limited by a plurality of limits
[0178] [0178] In some examples, a base station
[0179] [0179] In some examples, the synchronization or alignment signal may include a variable length training sequence 1230 (for example, a functional CUBS that has a duration less than the duration of an OFDM 1220 symbol period), however , no 1235 fixed length training sequence. In other examples, the synchronization or alignment signal can include a variable length training sequence 1230 and at least one fixed length training sequence 1235 (for example, at least one CUBS , each of which spans an OFDM symbol period). In other examples, the synchronization or alignment signal may include a 1235 fixed-length training sequence, but no variable length training sequence 1230. The
[0180] [0180] As an example, Figure 12 shows the first LTE / LTE-A 1210 subframe that starts with a DISABLED time 1240 followed by a variable length training sequence 1230, a fixed length training sequence 1235 and a downlink transmission 1245. In some instances, the OFF time 1240 may have a duration of 100 microseconds (µs), determined, for example, by a minimum OFF time of 100 µs for LBT-FBE transmissions and a maximum time OFF of 100 µs (5 x 20 µs) for LBT-LBE transmissions.
[0181] [0181] Figure 13 shows an example 1300 of how a first signal can be transmitted while operating in an LBT-LBE mode of operation in a radio frequency spectrum band, to align a start point of a second signal a reference limit associated with the radio frequency spectrum band, in accordance with various aspects of the present disclosure. More particularly, Figure 13 shows a radio frame of LBT-LBE 1305 that has a duration of 4 ms. The LBT-LBE 1305 radio frame may include a first LTE / LTE-A 1310 subframe, a second LTE / LTE-A 1315 subframe, a third LTE / LTE-A 1320 subframe and a fourth LTE / LTE-A 1325, each having a duration of 1 ms. Each of the first LTE / LTE-A 1310 subframe, the second LTE / LTE-A 1315 subframe, the third LTE / LTE-A 1320 subframe and the fourth LTE / LTE-A 1325 subframe can include a plurality OFDM symbol periods
[0182] [0182] In some examples, a base station may transmit a synchronization or alignment signal during a first part of the first LBT-LBE 1305 radio frame (for example, in the first LBT-LBE 1305 radio frame or next beginning). The synchronization or alignment signal can be transmitted, for example, due to the fact that the timing of the start of the LBT-LBE 1305 radio frame can vary based on the timing of the completion of a successful extended CCA procedure ( for example, the timing of completion of the successful extended CCA procedure may vary with reference to an OFDM symbol limit, a space limit and / or a subframe limit of an LBT-FBE frame structure across the radio spectrum band, with reference to the timing of a discovery signal (for example, a CET) transmitted across the radio spectrum band and / or with reference to an OFDM symbol limit, a space limit and / or a subframe limit of a transmission over a licensed radio spectrum band (for example, an OFDM symbol limit, a space limit and / or a subframe limit of a transmission from a sky primary service cell via a licensed radio frequency band)) and / or due to the fact that OFDM symbol level synchronization may be desirable between downlink transmissions from a base station or an eNB.
[0183] [0183] In some examples, the
[0184] [0184] As an example, Figure 13 shows the first LTE / LTE-A 1310 subframe that starts with a DISABLED time 1350 followed by a variable length training sequence 1340, a fixed length training sequence 1345 and a 1355 downlink transmission. In some examples, the OFF time 1350 can have a duration of 200 microseconds (µs), determined, for example, by a minimum OFF time of 200 µs for LBT-FBE transmissions and a maximum time 200 µs (10 x 20 µs) OFF for LBT-LBE transmissions.
[0185] [0185] Figure 14 shows an example 1400 of how a first signal can be transmitted while operating in an LBT-LBE mode of operation in a radio frequency spectrum band, to align a start point of a second signal a reference limit associated with the radio frequency spectrum band, in accordance with various aspects of the present disclosure. More particularly, Figure 14 shows a radio frame of LBT-LBE 1405 that has a duration of 10 ms. The LBT-LBE 1405 radio frame may include ten LTE / LTE-A subframes including a first LTE / LTE-A 1410 subframe, a second LTE / LTE-A 1415 subframe and a tenth LTE / LTE subframe -A 1420, each of which has a duration of 1 ms. Each of the LTE / LTE-A 1410 subframes (including the first LTE / LTE-A 1410 subframe, the second LTE / LTE-A 1415 subframe and the tenth LTE / LTE-A 1420 subframe may include a plurality of periods OFDM 1425 symbol period (e.g., 14 OFDM symbol periods) limited by a plurality of OFDM 1430 symbol period limits.
[0186] [0186] In some examples, a base station may transmit a synchronization or alignment signal during a first part of the first LBT-LBE 1405 radio frame (for example, in the first radio frame of
[0187] [0187] In some examples, the synchronization or alignment signal may include a training sequence of variable length 1435 (for example, a functional CUBS that has a duration less than the duration of an OFDM symbol period 1425), however , no fixed length training sequence 1440. In other examples, the synchronization or alignment signal may include a variable length training sequence 1435 and at least one fixed length training sequence 1440 (for example, at least one CUBS , each one extending over a syndibling period of OFDM). In other examples, the synchronization or alignment signal may include a fixed-length training sequence 1440, but no variable-length training sequence 1435. The variable-length training sequence 1435 and / or the length-training sequence fixed 1440 (which can individually or collectively constitute a first signal) can, in some examples, be used to align a downlink transmission to a limit 1430 of an OFDM symbol period 1425.
[0188] [0188] As an example, Figure 14 shows the first LTE / LTE-A 1410 subframe that starts with a DISABLED time 1445 followed by a variable length training sequence 1435, a fixed length training sequence 1440 and a downlink transmission 1450. In some instances, the OFF time 1445 can have a duration of 500 microseconds (µs), determined, for example, by a minimum OFF time of 500 µs for LBT-FBE transmissions and a maximum time OFF 500 µs (25 x 20 µs) for LBT-LBE transmissions.
[0189] [0189] Figure 15 shows a 1500 example of how a first signal can be transmitted while operating in an LBT-LBE mode of operation in a radio frequency spectrum band, to align a start point of a second signal a reference limit associated with the radio frequency spectrum band, in accordance with various aspects of the present disclosure. More particularly, Figure 15 shows a radio frame of LBT-LBE 1505 that has a duration of 10 ms. The LBT-LBE 1505 radio frame can include ten LTE / LTE-A m subframes, including a first LTE / LTE-A 1510 subframe, a second LTE / LTE-A 1515 subframe and a tenth
[0190] [0190] In some examples, a base station may transmit a synchronization or alignment signal during a first part of the first LBT-LBE 1505 radio frame (for example, in the first LBT-LBE 1505 radio frame or next beginning). The synchronization or alignment signal can be transmitted, for example, due to the fact that the timing of the start of the LBT-LBE 1505 radio frame can vary based on the timing of the completion of a successful extended CCA procedure ( for example, the timing of completion of the successful extended CCA procedure may vary with reference to an OFDM symbol limit, a space limit and / or a subframe limit of an LBT-FBE frame structure across the radio spectrum band, with reference to the timing of a discovery signal (for example, a CET) transmitted across the radio spectrum band and / or with reference to an OFDM symbol limit, a space limit and / or a subframe limit of a transmission over a licensed radio spectrum band (for example, an OFDM symbol limit, a space limit and / or a subframe limit of a transmission from a sky primary service cell via a licensed radio frequency band)) and / or due to the fact that OFDM symbol level synchronization may be desirable between downlink transmissions from a base station or an eNB.
[0191] [0191] In some examples, the synchronization or alignment signal may include a training sequence of variable length 1535 (for example, a functional CUBS that has a duration less than the duration of a symbol period of OFDM 1525), however , no fixed-length training sequence. In other examples, the synchronization or alignment signal may include a variable length training sequence 1535 and at least one fixed length training sequence 1540, 1545, 1550, 1555, 1560, 1565 and / or 1570 (e.g., at least one CUBS, each of which spans an OFDM symbol period). In other examples, the synchronization or alignment signal may include a 1540, 1545, 1550, 1555, 1560, 1565 and / or 1570 fixed-length training sequence, but no variable-length training sequence
[0192] [0192] As an example, Figure 15 shows the first LTE / LTE-A 1510 subframe that starts with a DISABLED time 1580, followed by a variable length training sequence 1535, a plurality of length training sequences fixed 1540,
[0193] [0193] Figure 3 and Figures 12 to 15 illustrate LBT radio frames (for example, LBT-FBE radio frames and / or LBT-LBE radio frames) that have different durations (for example, 2 ms, 4 ms or 10 ms). The duration of an LBT radio frame can have an impact on uplink transmissions to a secondary service cell over a radio frequency spectrum band. Uplink transmission data is scheduled and only UES that have uplink scheduled transmission data can perform a UCCA procedure. In a time domain duplexing (TDD) frame configuration, a last downlink subframe before an uplink subframe can be truncated to provide timing advance (TA) and the performance of a UCCA procedure.
[0194] [0194] Data for scheduled uplink transmissions (for example, uplink subframes) can be announced in a downlink subframe. Announcing uplink transmission data helps prevent base stations or neighboring eNBs from capturing one or more channels in the radio frequency band needed for scheduled uplink transmission data and prevents blocking of uplink reception on the service eNB.
[0195] [0195] In some examples, LBT radio frames can be transmitted to a UE from a secondary service cell over a radio frequency spectrum band, and LBT radio frames can have durations of 2 ms, both with all downlink subframe configurations and with all uplink subframe configurations.
[0196] [0196] Figure 16 shows a 1600 example of how one or more overload transmissions can be made in a radio frequency spectrum band, in accordance with various aspects of the present disclosure.
[0197] [0197] By resolving the conflict to access a radio frequency spectrum band during the first frame period, a transmission device can transmit a signal at a periodicity (for example, a fixed periodicity). The signal can be transmitted at periodicity during one or more subframes (for example, the first subframe 1655) of the first frame period. When the transmitting apparatus transmits a plurality of different frame periods (for example, frame periods of ten milliseconds, five milliseconds and / or two milliseconds), where the plurality of different frame periods includes the second frame period or when the transmission apparatus selects the first frame period from a plurality of different frame periods including the second frame period, the transmission apparatus may transmit the signal at periodicity to each of the plurality of different frame periods. That is, the signal can be transmitted at periodicity regardless of the frame in which the transmitting apparatus resolves the conflict, thereby making the signal processing transparent to a receiving apparatus regardless of a change in the frame in which the transmitting apparatus resolves the conflict to access the radio frequency spectrum. In some examples, the signal can be transmitted on an overload channel, and the overload channels can include a CRS, eCRS, CSI-RS, a synchronization signal and / or a SIB broadcast channel.
[0198] [0198] As shown, the signal can be transmitted in symbol periods of OFDM 1610, 1615, 1620 and / or 1625 of the first subframe 1655 of the first frame period. The signal can be transmitted, additionally or alternatively, in OFDM symbol periods 1630, 1635, 1640 and / or 1645 of the first subframe 1660 of the second frame period. The symbol periods of OFDM 1610, 1615, 1620 and 1625 can be aligned in time to the respective periods among the symbol periods of OFDM 1630, 1635, 1640 and 1645, in order to enable signal transmission at a fixed time or times . The signal can also be transmitted at a fixed frequency location or locations in each of the OFDM symbol periods.
[0199] [0199] When a signal transmission is determined to collide with a 1650 conflict procedure timing, signal transmission may be prevented. For example, the transmission of the signal in the OFDM symbol period 1630 of the first subframe 1660 can be determined to collide with the timing of the conflict procedure 1650 and, thus, the transmission of the signal during the symbol period of OFDM 1630 can be prevented .
[0200] [0200] Figure 17 shows a 1700 block diagram of a 1705 device for use in wireless communication, in accordance with various aspects of the present disclosure. In some examples, apparatus 1705 may be an example of aspects of one or more of the base stations 105, 205 and / or 205-a described with reference to Figures 1 and / or 2 and / or it may be an example of aspects one or more of the UES 115, 215, 215-a, 215-b and / or 215-C described with reference to Figures 1 and / or 2. Apparatus 1705 can also be a processor. The apparatus 1705 may include a 1710 receiver module, a 1720 wireless communication management module and / or a 1730 transmitter module. Each of these components may be in communication with each other.
[0201] [0201] The 1705 device components can be deployed, individually or collectively, with the use of one or more application specific integrated circuits (ASICs) adapted to perform all or some of the functions applicable in hardware or part. Alternatively, the functions can be performed by one or more other processing units (or cores), on one or more integrated circuits. In other examples, other types of integrated circuits can be used (for example, structured / platform ASICS, Programmable Field Gate Arrangements (FPGAs), and other semi-customized ICs), which can be programmed in any manner known in the art. The functions of each unit can also be implemented, completely or partially, with instructions incorporated in a memory, formatted in order to be executed by one or more processors of general purpose or specific application.
[0202] [0202] In some examples, the 1710 receiver module may include at least one radio frequency (RF) receiver, such as at least one RF receiver operable to receive transmissions over a licensed radio spectrum band (for example, a radio spectrum band for which devices may conflict over access due to the fact that the radio spectrum band is licensed for multiple users to share access to it) and / or an unlicensed radio spectrum band (for example example, a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as use of W1-Fi). In some examples, the licensed radio spectrum band and / or the unlicensed radio spectrum band can be used for LTE / LTE-A communications, as described, for example, with reference to Figures 1 and / or 2. The 1710 receiver module can be used to receive various types of data and / or control signals (ie, transmissions) through one or more communication links of a wireless communication system, such as one or more communication links. communication of the wireless communication system 100 and / or 300 and / or network architecture 200 described in relation to Figures 1 and / or 2. The communication links can be established through the licensed radio spectrum band and / or the band unlicensed radio frequency spectrum.
[0203] [0203] In some examples, the 1730 transmitter module may include at least one RF transmitter, such as at least one RF transmitter operable to transmit across the licensed radio spectrum band and / or the radio spectrum band not licensed. The 1730 transmitter module can be used to transmit various types of data and / or control signals (i.e., transmissions) through one or more communication links of a wireless communication system, such as one or more communication links wireless communication system 100 and / or 300 and / or network architecture 200 described in relation to Figures 1 and / or 2. Communication links can be established through the licensed radio spectrum band and / or the unlicensed radio frequency spectrum.
[0204] [0204] In some examples, the 1720 wireless management module can be used to manage one or more wireless communication aspects for the 1705 device. In some examples, the 1720 wireless management module can be used to transmit information (for example, N bits of information) over a channel in the radio frequency band. For example, the 1720 wireless communication management module can be used to transmit information with a signal that indicates access to a channel (for example, the reservation of it) in the radio frequency spectrum band. In some examples, the signal indicating access to the channel in the radio frequency band may include a CUBS, such as CUBS 445 and / or 545 described with reference to Figure 4 and / or 5. In one example, the information they can be transmitted as part of the signal indicating access to the channel in the radio frequency band. In another example, the information can be transmitted as a separate signal next to the signal indicating access to the channel in the radio frequency band. The transmitted information can assist a receiving device in decoding a transmission that follows the information and / or may enable the receiving device to save energy, etc.
[0205] [0205] In some examples, the 1720 wireless management module can be used to transmit a signal when a successful conflict procedure (for example, a DCCA procedure or UCCA procedure) is completed before a threshold reference band associated with a radio frequency spectrum band (for example, before a limit of a next OFDM symbol period). The first signal can be used to align a start point of a second signal to the reference limit associated with the radio frequency band. In some examples, the beginning of the first signal may not coincide with a reference limit of the radio frequency spectrum band, and the length of the first signal may be variable due to variations in timing between the time a conflict procedure is performed and the time when a reference limit occurs (for example, a limit of a next OFDM symbol period).
[0206] [0206] In some examples, the 1720 wireless management module can be used to perform one or more overhead channel transmissions (for example, eCRS, CSI-RS, synchronization signal transmissions and / or a broadcast channel) at a time or times and / or at a location and / or frequency locations, regardless of the duration (for example, two milliseconds, five milliseconds and / or ten milliseconds) of a radio frame period of LBT.
[0207] [0207] Figure 18 shows a 1800 block diagram of a 1805 device for use in wireless communication, in accordance with various aspects of the present disclosure.
[0208] [0208] The 1805 device components can be deployed, individually or collectively, with the use of one or more ASICS adapted to perform some or all of the functions applicable in hardware. Alternatively, the functions can be performed by one or more other processing units (or cores), on one or more integrated circuits. In other examples, other types of integrated circuits (for example, structured / platform ASICS, FPGAS and other semi-customized ICS) can be used that can be programmed in any manner known in the art. The functions of each unit can also be implemented, in whole or in part, with instructions embedded in a memory, formatted to be executed by one or more general or application-specific processors.
[0209] [0209] In some examples, the 1810 receiver module may be an example of one or more aspects of the 1710 receiver module described with reference to Figure 17.
[0210] [0210] In some examples, the 1830 transmitter module can be an example of one or more aspects of the 1730 transmitter module described with reference to Figure 17. In some examples, the 1830 transmitter module can include at least one RF transmitter , such as at least one RF transmitter operable to transmit across the licensed radio spectrum band and / or the unlicensed radio spectrum band. The 1830 transmitter module can be used to transmit various types of data and / or control signals (i.e., transmissions) through one or more communication links of a wireless communication system, such as one or more communication links wireless communication system 100 and / or 300 and / or network architecture 200 described in relation to Figures 1 and / or 2. Communication links can be established through the licensed radio spectrum band and / or the unlicensed radio frequency spectrum.
[0211] [0211] In some examples, the 1820 wireless management module can be an example of one or more aspects of the 1720 wireless management module described with reference to Figure 17. The 1820 wireless management module it can include a module for indicating access to channel 1835 and / or an information transmission module 1840. Each of these components can be in communication with each other.
[0212] [0212] In some examples, the channel access indication module 1835 can be used to transmit a first signal to indicate access to a first channel (for example, a reservation of the same) in the band
[0213] [0213] In some examples, the 1835 channel access indication module can transmit the first signal using a plurality of interlaced resource blocks. Transmission of the first signal 855 in this way may enable the first signal 855 to occupy at least a certain percentage of the frequency bandwidth available in the radio frequency spectrum band and / or satisfy one or more regulatory requirements (for example, a requirement for that the first signal 855 occupies at least 80% of the available frequency bandwidth).
[0214] [0214] In some examples, the 1840 information transmission module can be used to transmit information with the first signal in the radio frequency spectrum band. The information transmitted can include various types of information. In some examples, the information may include a cell ID, a PLMN ID, or a combination thereof. In some examples, the information may indicate a frame structure for transmission in the radio frequency band (for example, the LBT radio frame duration). In some examples, the information may indicate several subframes and / or symbols that will be used for transmission in a frame structure in the radio spectrum band (for example, five subframes are used for transmission over a ten millisecond frame duration. which includes ten subframes). An indication of several subframes and / or symbols that will be used for transmission in a frame structure in the radio frequency spectrum band can enable a receiving device, such as a UE, to enter a low energy state in a while previous (for example, immediately
[0215] [0215] Figure 19 shows a 1900 block diagram of a 1905 device for use in wireless communication, in accordance with various aspects of the present disclosure.
[0216] [0216] The components of the 1905 device can be deployed, individually or collectively, with the use of one or more ASICS adapted to perform some or all of the functions applicable in hardware. Alternatively, the functions can be performed by one or more other processing units (or cores), on one or more integrated circuits. In other examples, other types of integrated circuits (for example, structured / platform ASICS, FPGAS and other semi-customized ICS) can be used that can be programmed in any manner known in the art. The functions of each unit can also be implemented, in whole or in part, with instructions incorporated in a memory, formatted to be executed by one or more general or specific application processors.
[0217] [0217] In some examples, the 1910 receiver module may be an example of one or more aspects of the 1710 and / or 1810 receiver module described with reference to
[0218] [0218] In some examples, the 1930 transmitter module may be an example of one or more aspects of the 1730 and / or 1830 transmitter module described with reference to Figures 17 and / or 18. In some examples, the 1930 transmitter module it can include at least one RF transmitter, such as at least one RF transmitter operable to transmit across the licensed radio spectrum band and / or the unlicensed radio spectrum band. The transmitter module 1930 may, in some cases, include separate transmitters for the licensed radio spectrum band and for the unlicensed radio spectrum band.
[0219] [0219] In some examples, the 1920 wireless management module may be an example of one or more aspects of the 1720 and / or 1820 wireless management module described with reference to Figures 17 and / or 18. The 1920 wireless communication management module can include a 1935 conflict management module, a 1940 channel access indication module, a 1945 information transmission module, a 1960 antenna selection module, a mcs tuning module 1965 and / or a 1970 data transmission module. Each of these components can be in communication with each other.
[0220] [0220] In some examples, the 1935 conflict management module can be used to perform a conflict procedure to conflict over access to one or more channels in the radio spectrum band for a period of time (for example, for a period frame of the radio frequency band).
[0221] [0221] In some examples, the 1940 access indication module may be an example of one or more aspects of the 1835 access indication module described with reference to Figure 18. In some examples, the access indication module 1940 channel access can be used to transmit a first signal to indicate access to a first channel (for example, a reserve thereof) in the radio frequency spectrum band.
[0222] [0222] In some examples, the 1940 channel access indication module can transmit the first signal using a plurality of interlaced resource blocks. Transmitting the first 855 signal in this way may enable the first 855 signal to occupy at least a certain percentage of the available frequency bandwidth in the radio frequency spectrum band and satisfy one or more regulatory requirements (for example, a requirement that the first signal 855 occupies at least 80% of the available frequency bandwidth).
[0223] [0223] In some examples, the 1945 information transmission module can be an example of one or more aspects of the 1840 information transmission module described with reference to Figure 18. In some examples, the 1945 information transmission module can be used to transmit information with the first signal in the radio frequency band. The information transmitted can include various types of information. In some examples, the information may include a cell ID, a PLMN ID, or a combination thereof. In some examples, the information may indicate a frame structure for transmission in the radio frequency band (for example, the LBT radio frame duration). In some examples, the information may indicate several subframes and / or symbols that will be used for transmission in a frame structure in the radio spectrum band (for example, five subframes are used for transmission over a ten millisecond frame duration. which includes ten subframes). An indication of several subframes and / or symbols that will be used for transmission in a frame structure in the radio frequency spectrum band can enable a receiving device, such as a UE, to enter a low energy state in a while previous (for example, immediately after receiving the transmitted subframes), thereby saving energy. In some examples, the information may indicate an uplink configuration and / or a downlink configuration for transmission in the radio spectrum band (for example, an uplink configuration and / or a downlink configuration of a structure in .
[0224] [0224] In some examples, the 1945 information transmission module can transmit information with the first signal by having the 1940 channel access indication module transmit the information as part of the first signal. For example, the 1945 information transmission module may include a 1950 sequence selection module that can be used to select or generate a sequence that is a function of the information to be transmitted. For example, the sequence can be a function of a cell ID, a PLMN ID or a combination thereof. The sequence can be additionally or alternatively a function of any one or a combination of the types of information indicated in this document. In these examples, the 1945 information transmission module can cause the 1940 channel access indication module to generate the first signal based, at least partially, on the selected or generated sequence.
[0225] [0225] In other examples where the 1945 information transmission module can transmit information with the first signal by transmitting the information as part of the first signal, the 1945 information transmission module can include a phase selection module
[0226] [0226] In some examples, the 1945 information transmission module can transmit information with the first signal by transmitting the information in a second signal next to the first signal. The second signal can be separated from the first signal.
[0227] [0227] In some examples, the 1940 channel access indication module can transmit the first signal and information during a single OFDM symbol period of the radio spectrum band. In some examples, the 1940 channel access indication module can transmit the first signal during a first OFDM symbol period of the radio spectrum band and a second OFDM symbol period of the radio spectrum band and the information transmission 1945 can transmit information with the first signal by transmitting information during the second OFDM symbol period of the radio spectrum band. In some examples, the first OFDM symbol period of the radio spectrum band and the second OFDM symbol period of the radio spectrum band may be adjacent to the OFDM symbol periods.
[0228] [0228] In some examples, the 1945 information transmission module can transmit information with the first signal in the radio spectrum band by transmitting a second signal that carries information in the radio spectrum band. When the first signal is transmitted during a first OFDM symbol period of the radio spectrum band and a second OFDM symbol period of the radio spectrum band, the 1945 information transmission module may, in some instances, transmit the second signal during the second OFDM symbol period of the radio spectrum band.
[0229] [0229] When the 1945 information transmission module transmits information with the first signal in the radio frequency spectrum band by transmitting a second signal that carries information in the radio frequency spectrum band, the first signal can be transmitted using a first plurality of interlaced resource blocks and / or the second signal can be transmitted using a second plurality of interlaced resource blocks. Transmission of the first signal and / or the second signal in this manner may enable the first signal and / or the second signal to occupy at least a certain percentage of the frequency bandwidth available in the radio frequency band and / or satisfy one or more regulatory requirements (for example, a requirement that the first signal and / or second signal occupy at least 80% of the available frequency bandwidth).
[0230] [0230] In some examples, the 1960 antenna selection module can be used to determine several antennas to be used to receive a transmission carried on a component carrier in the radio frequency spectrum band. In some examples, the 1960 antenna selection module can be used to determine multiple antennas to be used to receive a transmission carried on a component carrier in the radio frequency spectrum band based, at least partially, on an uplink configuration. or in a downlink configuration associated with the component carrier (for example, an uplink configuration or a downlink configuration associated with a frame and / or a subframe of the component carrier). In the same example, or in other examples, the antenna selection module 1960 can determine the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency band based, at least partially, on a procedure conflict associated with each of a plurality of component carriers used to serve a UE (for example, based, at least partially, on a success or failure of the conflict procedure performed for one of the plurality of component carriers) .
[0231] [0231] In some examples, the 1960 antenna selection module can select the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency spectrum band for each subframe of a component carrier frame. In some examples, the antenna selection module 1960 may select the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency spectrum band for each frame of the component carrier.
[0232] [0232] In some examples, the MCS tuning module 1965 can be used to adjust an MCS for data transmission via the component carrier in the radio frequency spectrum band. The MCS can be adjusted based, at least partially, on the number of antennas to be used to receive the component carrier in the radio frequency spectrum band. The 1920 wireless communication management module may also include a module for adjusting a pre-coding matrix and / or a classification for data transmission.
[0233] [0233] In some examples, the 1970 data transmission module can be used to transmit a data transmission through a component carrier in the radio frequency spectrum band. In some instances, data transmission may be transmitted in accordance with an adjusted pre-coding matrix, with a classification and / or with an MCS.
[0234] [0234] Figure 20 shows a block diagram 2000 of a 2005 device for use in wireless communication, according to various aspects of the present disclosure. In some examples, the apparatus 2005 may be an example of aspects of one or more of the base stations 105, 205 and / or 205-a described with reference to Figures 1 and / or 2, it may be an example of aspects of a or more among UEs 115, 215, 215-a, 215-b and / or 215-C described with reference to Figure 1 and / or 2, and / or can be an example of aspects of the apparatus 1705 described with reference to Figure 17 The 2005 device can also be a processor. The 2005 device can include a receiver module 2010, a wireless communication management module 2020 and / or a transmitter module 2030. Each of these components can be in communication with each other.
[0235] [0235] The components of the 2005 device can be deployed, individually or collectively, using one or more ASICS adapted to perform some or all of the functions applicable in hardware. Alternatively, the functions can be performed by one or more other processing units (or cores), on one or more integrated circuits. In other examples, other types of integrated circuits (for example, structured / platform ASICS, FPGAS and other semi-customized ICS) can be used that can be programmed in any manner known in the art. The functions of each unit can also be implemented, in whole or in part, with instructions incorporated in a memory, formatted to be executed by one or more general or specific application processors.
[0236] [0236] In some examples, the 2010 receiver module can be an example of one or more aspects of the
[0237] [0237] In some examples, the 2030 transmitter module can be an example of one or more aspects of the 1730 transmitter module described with reference to Figure 17. In some examples, the 2030 transmitter module can include at least one RF transmitter , such as at least one RF transmitter operable to transmit across the licensed radio spectrum band and / or the unlicensed radio spectrum band. The 2030 transmitter module can be used to transmit various types of data and / or control signals (i.e., transmissions) through one or more communication links of a wireless communication system, such as one or more communication links wireless communication system 100 and / or 300 and / or network architecture 200 described in relation to Figures 1 and / or 2. Communication links can be established through the licensed radio spectrum band and / or the unlicensed radio frequency spectrum.
[0238] [0238] In some examples, the 2020 wireless management module can be an example of one or more aspects of the 1720 wireless management module described with reference to Figure 17. The 2020 wireless management module may include a 2035 conflict management module and / or an alignment signal transmission module
[0239] [0239] In some examples, the conflict management module 2035 can be used to perform a conflict procedure to conflict over access to one or more channels in the radio frequency band for a period of time (for example, for a period frame of the radio frequency band).
[0240] [0240] In some instances, and after resolving the conflict in order to access the radio frequency spectrum band, the 2040 alignment signal transmission module can be used to transmit a first signal to align a start point of a second signal to a reference limit associated with the radio frequency spectrum band. In some instances, the first signal can be transmitted before the second signal.
[0241] [0241] In some examples of the 2005 apparatus, the first signal may include a variable length training sequence. The variable-length training sequence may, in some examples, include one or more fixed-length transmission units. In other examples of the 2005 apparatus, the first signal may include a variable-length training sequence and at least one fixed-length training sequence.
[0242] [0242] In some examples of the 2005 apparatus, the second signal may include a signal indicating the solution of the conflict in order to access the radio frequency spectrum band (for example, a CUBS). In other examples of the 2005 apparatus (for example, examples in which the 2005 apparatus is operating in an LBT-LBE operating mode in the radio spectrum band), the second signal may include a data transmission.
[0243] [0243] In examples from the 2005 apparatus, the reference limit may include a limit of an OFDM symbol period. In these examples, the conflict procedure performed by the 2035 conflict management module can be performed in accordance with a conflict priority during the OFDM symbol period. The conflict priority can determine when the 2005 device performs a conflict procedure within the OFDM symbol period associated with the radio frequency spectrum band. In this way, the conflict priority can provide the 2005 device, when the 2005 device performs a conflict procedure earlier than another device, with a preference to resolve the conflict procedure over the other device. In some examples of the 2005 apparatus, the first signal may be associated with the conflict priority of the 2005 apparatus, so that the first signal is transmitted during a portion of the OFDM symbol period based, at least in part, on the conflict priority. In this way, for example, the first signal can be transmitted over a larger portion of the OFDM symbol period when the first signal is associated with a conflict priority that allows the apparatus 2005 to perform a conflict procedure previously within the OFDM symbol. Similarly, and as an additional example, the first signal can be transmitted over a smaller portion of the OFDM symbol period when the first signal is associated with a conflict priority that allows the apparatus 2005 to perform a conflict procedure later within the OFDM symbol period.
[0244] [0244] In some examples, the 2040 alignment signal transmission module can transmit information as part of the first signal. The information may include, for example, AGC information and / or a phase reference for the second signal.
[0245] [0245] In some examples, the 2040 alignment signal transmission module can transmit the first signal using a plurality of interlaced resource blocks. Transmission of the first signal 855 in this way may enable the first signal 855 to occupy at least a certain percentage of the frequency bandwidth available in the radio frequency spectrum band and / or satisfy one or more regulatory requirements (for example, a requirement for that the first signal 855 occupies at least 80% of the available frequency bandwidth).
[0246] [0246] Figure 21 shows a 2100 block diagram of a 2105 device for use in wireless communication, in accordance with various aspects of the present disclosure. In some examples, apparatus 2105 may be an example of aspects of one or more of the base stations 105, 205 and / or 205-a described with reference to Figures 1 and / or 2, it may be an example of aspects of a or more among UES 115, 215, 215-a, 215-b and / or 215-C described with reference to Figure 1 and / or 2, and / or can be an example of aspects of the apparatus 1705 and / or 2005 described with reference to Figures 17 and / or 20. Apparatus 2105 can also be a processor. The apparatus 2105 may include a receiver module 2110, a wireless communication management module 2120 and / or a transmitter module 2130. Each of these components may be in communication with each other.
[0247] [0247] The 2105 device components can be deployed, individually or collectively, with the use of one or more ASICS adapted to perform some or all of the functions applicable in hardware. Alternatively, the functions can be performed by one or more other processing units (or cores), on one or more integrated circuits. In other examples, other types of integrated circuits (for example, structured / platform ASICS, FPGAs and other semi-customized ICS) can be used that can be programmed in any manner known in the art. The functions of each unit can also be implemented, in whole or in part, with instructions incorporated in a memory, formatted to be executed by one or more general or specific application processors.
[0248] [0248] In some examples, the 2110 receiver module may be an example of one or more aspects of the 1710 and / or 2010 receiver module described with reference to Figures 17 and / or 20. In some examples, the 2110 receiver module may include at least one RF receiver, such as at least one RF receiver operable to receive transmissions over a licensed radio spectrum band (for example, a radio spectrum band to which devices may conflict over due access the fact that the radio frequency band is licensed for multiple users to share access to it) and / or an unlicensed radio frequency band (for example, a radio frequency band for which devices may need to conflict over the access due to the fact that the radio frequency spectrum band is available for unlicensed use, such as Wi-Fi use). In some examples, the licensed radio spectrum band and / or the unlicensed radio spectrum band can be used for LTE / LTE-A communications, as described, for example, with reference to Figures 1 and / or 2. The receiver module 2110 may include, in some separate receivers for the licensed radio spectrum band and for the unlicensed radio spectrum band. Separate receivers may, in some instances, take the form of a licensed RF spectrum band LTE / LTE-A receiver module 2112 for communication over the licensed radio spectrum band and an LTE / LTE receiver module -The unlicensed RF spectrum band 2114 for communication through the unlicensed radio frequency band. The 2110 receiver module, including the licensed RF spectrum band LTE / LTE-A receiver module 2112 and / or the unlicensed RF spectrum band LTE / LTE-A receiver module 2114, can be used to receive various types of data and / or control signals (ie transmissions)
[0249] [0249] In some examples, the transmitter module 2130 may be an example of one or more aspects of the transmitter module 1730 and / or 2030 described with reference to Figures 17 and / or 20. In some examples, the transmitter module 2130 it can include at least one RF transmitter, such as at least one RF transmitter operable to transmit across the licensed radio spectrum band and / or the unlicensed radio spectrum band. The transmitter module 2130 may in some cases include separate transmitters for the licensed radio spectrum band and for the unlicensed radio spectrum band.
[0250] [0250] In some examples, the 2120 wireless management module may be an example of one or more aspects of the 1720 and / or 2020 wireless management module described with reference to Figures 17 and / or 20. The Wireless communication management module 2120 may include a timing information access module 2135, a conflict management module 2140, a reference limit determination module 2145 and / or an alignment signal transmission module 2150. Each of these components can be in communication with each other.
[0251] [0251] In some examples, the 2135 timing information access module can be used to access timing information. Timing information may include, for example, timing of one or more reference limits associated with the radio frequency band.
[0252] [0252] In some examples, the conflict management module 2140 may be an example of one or more aspects of the conflict management module 2035 described in reference to Figure 20. In some examples, the conflict management module 2140 may be used to perform a conflict procedure to conflict over access to one or more channels of the radio spectrum band for a period of time (for example, for a frame period of the radio spectrum band).
[0253] [0253] In some examples, c) 2145 reference limit determination module can be used to determine a reference limit (for example, a reference limit that occurs after resolving the conflict to access the radio spectrum band) associated with the radio frequency band, based, at least partially, on timing information and conflict resolution in order to access the radio frequency band.
[0254] [0254] In some examples, the alignment signal transmission module 2150 can be an example of one or more aspects of the alignment signal transmission module 2040 described with reference to Figure
[0255] [0255] In some examples of the 2105 device, the first signal may include a variable length training sequence. The variable-length training sequence may, in some examples, include one or more fixed-length transmission units. In other examples of apparatus 2105, the first signal may include a variable-length training sequence and at least one fixed-length training sequence.
[0256] [0256] In some examples of apparatus 2105, the second signal may include a signal indicating the resolution of the conflict in order to access the radio frequency spectrum band (for example, a CUBS). In other examples b of apparatus 2105 (for example, examples in which o.
[0257] [0257] In examples of apparatus 2105, the reference limit may include a limit of an OFDM symbol period. In these examples, the conflict procedure performed by the conflict management module 2140 can be performed in accordance with a conflict priority during the OFDM symbol period. The conflict priority can determine when the device 2105 performs a conflict procedure within the OFDM symbol period associated with the radio frequency band. In this way, the conflict priority can provide device 2105, when device 2105 performs a conflict procedure earlier than another device, with a preference to resolve the conflict procedure over the other device. In some examples of apparatus 2105, the first signal may be associated with the conflict priority of apparatus 2105, so that the first signal is transmitted during a portion of the OFDM symbol period based, at least in part, on the conflict priority. In this way, for example, the first signal can be transmitted over a larger portion of the OFDM symbol period when the first signal is associated with a conflict priority that allows apparatus 2105 to perform a conflict procedure previously within the period of conflict. OFDM symbol. Similarly, and as an additional example, the first signal can be transmitted over a smaller portion of the OFDM symbol period when the first signal is associated with a conflict priority that allows the device 2105 to perform a conflict procedure 0 m later within the OFDM symbol period. K W
[0258] [0258] In some examples, the reference limit may include a space limit of a frame associated with the radio spectrum band and / or a limit of a subframe of a frame associated with the radio spectrum band.
[0259] [0259] In some examples, the 2150 alignment signal transmission module can transmit information as part of the first signal. The information may include, for example, AGC information and / or a phase reference for the second signal.
[0260] [0260] In some examples, the 2150 alignment signal transmission module can transmit the first signal using a plurality of interlaced resource blocks. Transmission of the first signal 855 in this way may enable the first signal 855 to occupy at least a certain percentage of the frequency bandwidth available in the radio frequency spectrum band and / or satisfy one or more regulatory requirements (for example, a requirement for that the first signal 855 occupies at least 80% of the available frequency bandwidth).
[0261] [0261] Figure 22 shows a 2200 block diagram of a 2205 device for use in wireless communication, in accordance with various aspects of the present disclosure.
[0262] [0262] The 2205 device components can be deployed, individually or collectively, with the use of one or more ASICS adapted to perform some or all of the functions applicable in hardware. Alternatively, the functions can be performed by one or more other processing units (or cores), on one or more integrated circuits. In other examples, other types of integrated circuits (for example, structured / platform ASICs, FPGAs and other semi-customized ICS) can be used which can be programmed in any manner known in the art. The functions of each unit can also be implemented, in whole or in part, with instructions incorporated in a memory, formatted to be executed by one or more general or specific application processors. In some examples, the 2210 receiver module may be an example of one or more aspects of the 1710 and / or 2010 receiver module described with reference to Figures 17 and / or 20. In some examples, the 2210 receiver module may include at least least one RF receiver, such as at least one RF receiver operable to receive transmissions over a licensed radio spectrum band (for example, a radio spectrum band for which devices may conflict over access due to the fact that that the radio frequency band is licensed for multiple users to share access to it) and / or an unlicensed radio frequency band (for example, a radio frequency band for which devices may need to conflict over access due to
[0263] [0263] In some examples, the 2230 transmitter module can be an example of one or more aspects of the 1730 and / or 2030 transmitter module described with reference to Figures 17 and / or 20. In some examples, the $ r · ¶ 0 ^ ^ ^ ^ ¶ P 7 P 7 LLLLJ .ALAJ ^ J LA ¢ uLLAjLoLlLjjgjgjL mm ~ fw yu ¢% ~ j & 4 ~ ^ 4 ~ r '~ "~" "" ~ "" ~~ - "·· 0 b
[0264] [0264] In some examples, the 2220 wireless management module may be an example of one or more aspects of the 1720 and / or 2020 wireless management module described with reference to Figures 17 and / or 20. The management module Àm r ^ m71m4 rmr · 3a "í emm fV ^ 999n n ^ À ^ 4 rirl ii4 r iirn rnÁÀ1j ^ Àm - conflict management 2235, a 2250 reference limit determination module, a signal transmission module alignment 2255 and / or a location information transmission module 2260. Each of these components can be in communication with each other.
[0265] [0265] In some examples, conflict management module 2235 may be an example of one or more aspects of conflict management module 2035 described in reference to Figure 20. In some examples, conflict management module 2235 may be used to perform a conflict procedure to conflict over access to one or more channels of the radio spectrum band for a period of time (for example, for a frame period of the radio spectrum band). In some examples, the conflict management module 2235 may include an LBT-LBE 2240 conflict module and / or an LBT-FBE 2245 conflict module. The LBT-LBE 2240 conflict module can be used to perform a conflict conflict procedure (for example, an extended CCA procedure) when the 2205 device is operated in an LBT-LBE operating mode across the radio frequency band. The LBT-FBE 2245 conflict module can be used to perform a conflict procedure (for example, a CCA procedure) when the 2205 device is operated in an LBT-FBE operating mode over the radio frequency band. In some examples, the conflict management module 2235 can determine which of the conflict module of LBT-LBE 2240 and the conflict module of LBT-FBE 2245 should be used based, for example, on a historic success in resolving conflict to access the radio frequency spectrum band using the ———- e7 module: 4- ^ ~ J ~ t mm r'rjm 'J ") ak
[0266] [0266] In some examples, the 2250 reference limit determination module can be used to determine a reference limit (for example, a reference limit that occurs after the conflict is resolved in order to access the radio spectrum band ) associated with the radio frequency band, based, at least partially, on the solution of the conflict in order to access the radio frequency band.
[0267] [0267] In some examples, the 2255 alignment signal transmission module may be an example of one or more aspects of the 2040 alignment signal transmission module described with reference to Figure
[0268] [0268] In some examples, the location information transmission module 2260 can be used to transmit a second signal to pass location information from overload signals in relation to the radio frame boundary timing. In some examples, the second signal may include RRC signaling. In some instances, the second signal may pass location information to a downlink control channel in relation to the radio frame boundary. In some examples, the second signal can pass information A ^ 7 ^ mm 1: F ¥ ^ rYa ^ ^ m Ym Ymr¶11Y ¢ - · ^ cu 71c- · = À ^ e r ' = r = = v "mt "v" rnm 1 7 mmnl '0 m r': mrí ~ â & - from CSI.
[0269] [0269] In some examples of apparatus 2205, the first signal transmitted by the 2255 alignment signal transmission module may include the second signal transmitted by the 2260 location information transmission module (for example, the first signal may be a CUBS that passes the location information to the overload signals in relation to the radio frame limit timing).
[0270] [0270] Figure 23 shows a 2300 block diagram of a 2305 device for use in wireless communication, in accordance with various aspects of the present disclosure. In some examples, apparatus 2305 may be an example of aspects of one or more of the base stations 105, 205 and / or 205-a described with reference to Figures 1 and / or 2, it may be an example of aspects of a or more among UEs 115, 215, 215-a, 215-b and / or 215-C described with reference to Figure 1 and / or 2, and / or can be an example of aspects of the apparatus 1705 described with reference to Figure 17 The 2305 device can also be a processor. The device 2305 may include a receiver module 2310, a wireless communication management module 2320 and / or a transmitter module 2330. Each of these components may be in communication with each other.
[0271] [0271] The 2305 device components can be deployed, individually or collectively, with the use of one or more ASICS adapted to perform some or all of the functions applicable in hardware. Alternatively, the functions can be performed by one or more other processing units (or cores), on one or more integrated circuits. In other examples, other types of integrated circuits can be used (for example, ASICS m · - - -L --- ---- —7 .. - / A.,. T71 m4- m GmYm C'DG7 çg m ^ 11r r ^ and TGq r Semipersonalized) that can be programmed in any way known in the art. The functions of each unit can also be implemented, in whole or in part, with instructions incorporated in a memory, formatted to be executed by one or more general or specific application processors.
[0272] [0272] In some examples, the 2310 receiver module may be an example of one or more aspects of the 1710 receiver module described with reference to Figure 17.
[0273] [0273] In some examples, the 2330 transmitter module can be an example of one or more aspects of the 1730 transmitter module described with reference to Figure 17. In some examples, the 2330 transmitter module can include at least one RF transmitter , such as at least one RF transmitter operable to transmit across the licensed radio spectrum band and / or the unlicensed radio spectrum band. The 2330 transmitter module can be used to transmit various types of data and / or control signals (i.e., transmissions) through one or more communication links of a wireless communication system, such as one or more communication links wireless communication system 100 and / or 300 and / or network architecture 200 described in relation to Figures 1 and / or 2. Communication links can be established through the licensed radio spectrum band and / or the unlicensed radio frequency spectrum.
[0274] [0274] In some examples, the 2320 wireless management module may be an example of one or more aspects of the 1720 wireless management module described with reference to Figures 17. The 2320 wireless management module it may include a 2335 conflict management module and / or a 2340 signal transmission module.
[0276] [0276] In some examples, the signal transmission module 2340 can be used to transmit a signal and periodicity during one or more subframes of the first frame period for each of the plurality of different frame periods. In some examples, the periodicity can be a fixed periodicity and / or the signal transmission module 2340 can transmit the signal at a fixed time and / or at a fixed frequency location, as described, for example, with reference to Figure 16 In some instances, the 2340 signal transmission module can transmit the signal on an overload channel). The overload channels can include a CRS, an eCRS, a CSI-RS, a synchronization signal and / or a SIB broadcast channel.
[0277] [0277] Figure 24 shows a diagram of 7 7 ^ tl ^^ -1. .-- .. —_— .- + 1 L- - "J ll (IK · mm wm 11o (> mm r ^ m11ni r'mr'ãn qem '" "L _ m wire, according to various aspects of present revelation.
[0278] [0278] The 2405 device components can be deployed, individually or collectively, with the use of one or more ASICs adapted to perform some or all of the functions applicable in hardware. Alternatively, the functions can be performed by one or more other processing units (or cores), on one or more integrated circuits. In other examples, other types of integrated circuits can be used (for example, structured / platform ASICS, FPGAS and other ICS
[0279] [0279] In some examples, the receiver module 2410 can be an example of one or more aspects of the receiver module 1710 and / or 2310 described with reference to Figures 17 and / or 23. In some examples, the 0 ^ module Cl n ^ - - —1 -: - ~ 7 .¶: + ~ 1 m ~ ^^ m + lirn rm + mnP ^ "r" RF t "= 1 m ~~~ m ~~~" "" "L "" m as at least one RF receiver operable to receive transmissions over a licensed radio spectrum band (for example, a radio spectrum band to which devices may conflict over access due to the fact that the band spectrum radio is licensed for multiple users to share access to) and / or an unlicensed radio spectrum band (for example, a radio spectrum band for which devices may need to conflict over access due to the fact that the radio spectrum band is available for unlicensed use, such as use of Wi-Fi). For example, the licensed radio spectrum band and / or the unlicensed radio spectrum band can be used for LTE / LTE-A communications, as described, for example, with reference to Figures 1 and / or 2. The module of receiver 2410 may include, in some separate receivers for the licensed radio spectrum band and for the unlicensed radio spectrum band. Separate receivers may, in some instances, take the form of a licensed RF spectrum band LTE / LTE-A receiver module 2412 for communication over the licensed radio spectrum band and an LTE / LTE receiver module -The unlicensed RF spectrum band 2414 for communication through the unlicensed radio frequency band. The 2410 receiver module, including the licensed RF spectrum band LTE / LTE-A receiver module 2412 and / or the unlicensed RF spectrum band LTE / LTE-A receiver module 2414, can be used to receive various types of data and / or control signals (ie transmissions) up to çjp ijm c) 1i mMs: pn1Araq da rc m11nirmr "ã ^ rím iim aiQt-mmm for wireless communication , one or more communication links of the wireless communication system 100 and / or 200 described with reference to Figures 1 and / or 2. The communication links may be established through the licensed radio spectrum band and / or the unlicensed radio frequency spectrum.
[0280] [0280] In some examples, the 2430 transmitter module can be an example of one or more aspects of the 1730 and / or 2330 transmitter module described with reference to Figures 17 and / or 23. In some examples, the 2430 transmitter module it can include at least one RF transmitter, such as at least one RF transmitter operable to transmit across the licensed radio spectrum band and / or the unlicensed radio spectrum band. The transmitter module 2430 may in some cases include separate transmitters for the licensed radio spectrum band and for the unlicensed radio spectrum band.
[0281] [0281] In some examples, the 2420 wireless management module may be an example of one or more aspects of the 1720 and / or 2320 wireless management module described with reference to Figures 17 and / or 23. The 2420 wireless communication management module may include a 2435 frame period selection module, a 2440 conflict management module, a 2445 signal collision detection module and / or a 2450 signal transmission module. of these components can be in communication with each other.
[0282] [0282] In some examples, the frame period selection module 2435 can be used to select a first frame period from a plurality of different frame periods (for example, from a plurality of different frame periods) that last two milliseconds, five milliseconds and / or ten milliseconds). In some instances, the first frame period may be an LBT radio frame period. In some instances, each of the plurality of different frame periods may be an LBT radio frame period.
[0283] [0283] In some examples, the conflict management module 2440 can be an example of one or more aspects of the conflict management module 2335 described in reference to Figure 23. In some examples, the conflict management module 2440 can be used to perform a Drocedimenrn dt = c'nnf1if ^ T = r = r · ^ ~ F14 + - = r by accessing one or more channels of the radio frequency band for a period of time (for example, for the first frame period selected by frame period selection module 2435).
[0284] [0284] In some examples, the signal collision detection module 2445 can be used to determine the possibility of a signal being transmitted at a periodicity during one or more subframes of the first frame period, and for each of the plurality of different frame periods, collide with a timing of a conflict procedure performed by the conflict management module 2440.
[0285] [0285] In some examples, the signal transmission module 2450 can be an example of one or more aspects of the signal transmission module 2340 described with reference to Figure 23. In some examples, the signal transmission module 2450 can be used to transmit a signal at a periodicity, during one or more subframes of the first frame period, and for each of the plurality of different frame periods, when the signal collision detection module 2445 determines that the signal will not collide with a time delay of one
[0287] [0287] Figure 25 shows block diagram 2500 of a 2505 base station (for example, a base station that forms an entire eNB or part of it) for use in wireless communication in accordance with various aspects of the present disclosure . In some examples, base station 2505 may be an example of one or more aspects of base station 105, 205 and / or 205-a described with reference to Figures 1 and / or 2, and / or one or more aspects of apparatus 1705, 1805, 1905, 2005, 2105, 2205, 2305 and / or 2405 described with reference to Figures 17, 18, 19, 20, 21, 22, 23 and / or 24 (for example, when apparatus 1705, 1805 , 1905, 2005, 2105, 2205, 2305 and / or 2405 is configured as a base station). Base station 2505 can be configured to deploy or facilitate at least some of the base station and / or device features and functions described with reference to Figures 1, 2, 3, 4, 5, 6, 7, 8A, 8B , 9, 10,
[0288] [0288] Base station 2505 may include a base station processor module 2510, a base station memory module 2520, at least one base station transceiver module (represented by the module (s) 2550 base station transceiver), at least one base station antenna (represented by the 2555 base station antenna (s)) and / or a 2560 base station wireless communication management module. The 2505 base station can also include one or more of a 0 r · communications module. 0 ¶ ¶ = gjuaYa · j á.jao = mu ~ n.j = i -jla lajll iLLÜLÀAA & U g4c ~ ~ ljllllalljucay ^^ ~ o lau -l. ~ La ~
[0289] [0289] The base station memory module 2520 may include random access memory (RAM) and / or read-only memory (ROM). The 2520 base station memory module can store computer readable, 2525 computer executable code that contains instructions that are configured to, when executed, cause the 2510 base station processor module to perform various functions described in this document. related to wireless communication. Alternatively, software code 2525 may not be directly executable by the 2510 processor module, however, it is configured to cause the base station 2505 (for example, when compiled and executed) to perform several of the functions described in this document.
[0290] [0290] The 2510 base station processor module may include an intelligent hardware device, for example, a central processing unit (CPU), a microcontroller, an ASIC, etc. The 2510 base station processor module can process the information received via the 2550 base station transceiver module (s), the 2530 base station communications and / or the 2540 network communications module. 2510 base station processor module can also process information to be sent to the 2550 transceiver module (s) for transmission through the 2555 antenna (s), to the 2530 base station communications module for transmission to one or more other base stations or eNBs 2505-a and 2505-be / or to the network communications module 2540 for transmission to a core network 2545, which can be an example of one or more% m ^ + m om> ^ ^ Am y ^ A ~ Am .. 1 P —— 1 "jn -J - - - -: J- _ _ __- - - K'- .. ± - - '- & --——— —— Figure 1. The 2510 base station processor module can handle, by itself or in connection with the 2560 base station wireless communication management module, various aspects of communication (or manipulate communications) over a pri first radio frequency band (for example, a radio frequency band for which devices may conflict over access due to the fact that the radio frequency band is licensed for multiple users to share access to it, such as a licensed radio frequency band usable for LTE / LTE-A communications) and / or a second radio frequency band (for example, a radio frequency band, such as W1-Fi radio frequency band, for which devices may need to conflict over access due to the fact that the radio spectrum band is available for unlicensed use, such as an unlicensed radio spectrum band usable for LTE / LTE-A communications).
[0291] [0291] The 2550 base station transceiver module (s) may include a modem configured to modulate packets and deliver the modulated packets to the 2555 base station antenna (s) for transmission and to demodulate packets received from the 2555 base station antenna (s). The 2550 base station transceiver module (s) may, in some instances, be deployed as one or more transmitter modules base station and one or more separate receiver base station receiver modules.
[0292] [0292] The base station wireless communication management module 2560 can be configured to perform and / or control some or all of the features and / or functions described with reference to Figures 1, 2, 3, 4, 5, 6 , 7, 8A, 8B, 9, 10, 11A, 11B, llC, 12, 13, 14, 15 and / or 16 with respect to wireless communication via the first radio frequency spectrum band and / or the second spectrum band radio frequency. For example, the 2560 base station wireless management module can be configured to support a complementary downlink mode, a carrier aggregation mode and / or a standalone mode using the first radio frequency spectrum band and / or the second radio frequency spectrum band. The 2560 base station wireless communication management module can include a 2565 base station LTE / LTE-A licensed RF spectrum band module configured to handle LTE / LTE-A communications in the first band. radio frequency spectrum and a station-licensed LTE / LTE-A RF spectrum band module
[0293] [0293] Figure 12A shows a 2600 block diagram of a UE 2615 for use in wireless communication, in accordance with various aspects of the present disclosure. The UE 2615 can have different configurations and can be included in or be part of a personal computer (for example, a laptop computer, a netbook computer, a tablet computer, etc.), a cell phone, a PDA , a digital video recorder (DVR), an internet appliance, a video game console, a digital book reader, etc. The UE 2615 may, in some instances, have an internal power supply (not shown), such as a small battery, to facilitate mobile operation. In some examples, UE 2615 may be an example of one or more aspects of UE 115, 215, 215-a, 215-b and / or 215-c described with reference to Figures 1 and / or 2, and / or one or more aspects of the apparatus 1705, 1805, 1905, 2005, 2105, 2205, 2305 and / or 2405 described with reference to Figures 17, 18, 19, 20, 21, 22, 23, 24 and / or 25 (for example, when apparatus 1705, 1805, 1905, 2005, 2105, 2205, 2305 and / or 2405 FT ¶ ¶ 4 ~ ÜÜ & AL iy LALCA> Ü · ~~ íu ~ LA4L4) mj I · ~ u ~ m upm ~ 'Y' ~ ' m ~ ~~ ^ ~ y & 4m ^ YJ LAmg ^^^ ~ to deploy at least some of the features and functions of UE and / or apparatus described in reference to Figures 1, 2, 3, 4, 5, 6, 7, 8A, 8B, 9, 10, 11A, 11B, 11C, 12, 13, 14, 15 and / or 16.
[0294] [0294] The UE 2615 may include an UE 2610 processor module, an UE 2620 memory module, at least one UE transceiver module (represented by the EU 2630 transceiver module (s)), by minus one UE antenna (represented by the EU 2640 antenna (s)) and / or an EU 2660 wireless communication management module. Each of these components can be in communication with each other, directly or indirectly, through one or more 2635 buses.
[0295] [0295] The UE 2620 memory module can include RAM and / or ROM. The UE 2620 memory module can store a computer-readable, computer-executable code 2625 that contains instructions that are configured to, when executed, cause the UE 2610 processor module to perform various functions described in this document in relation to wireless communication. Alternatively, code 2625 may not be directly executable by the UE processor module
[0296] [0296] The UE 2610 processor module may include an intelligent hardware device, for example, a CPU, a microcontroller, an ASIC, etc. The UE 2610 processor module can process information received through the UE 2630 transceiver module (s) and / or information to be sent to the UE 2630 transceiver module (s) for transmission via ( s) P 4 VV 'V m ¶ ¶ ¶ ~ D & ~~ "" ~ I ~ u ~ ~ U a Ü 0 ~ & LL ~> 4.A ^^ J <^ Ç X ^ - ÜÜG ~~ CA ^^ ~ & - LAÀ ~ u ~ ~ LAÜU 2610 can manipulate, by itself or in connection with the EU 2660 wireless communication management module, various aspects of communication (or manipulate communications) via a first radio frequency spectrum band (for example, a radio spectrum band for which devices may conflict over access due to the fact that the radio spectrum band is licensed for multiple users to share access to it, such as a licensed radio spectrum band usable for LTE / LTE-A communications) and / or a second radio spectrum band (for example, a radio spectrum band frequency, such as W1-Fi radio spectrum band, for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as a spectrum band unlicensed radio frequency usable for LTE / LTE-A communications).
[0297] [0297] The UE 2630 transceiver module (s) may include a modem configured to modulate packets and provide the modulated packets to the EU 2640 antenna (s) for transmission, and to demodulate packets received from the EU 2640 antenna (s). The EU 2630 transceiver module (s) may, in some instances, be deployed as one or more EU transmitter modules and one or more separate UE receiver modules. The EU 2630 transceiver module (s) can support communications in the first radio frequency spectrum band and / or the second radio frequency spectrum band. The UE 2630 transceiver module (s) can be configured to communicate in a bidirectional manner via the UE 2640 antenna (s) with a uma r - - - .-. 0 1 ~ - - ·· —— ~ ^^ ~ ~ ~ ~~ ÜGY ~~~ ~ G ^ ~~ j M Ü V 4 J ~ 1 V m LJ ~ 1 CA Ç l ÜLA m ~ J LJ ~ 0 described in relation to Figures 1, 2 and / or 25, and / or the apparatus 1705, 1805, 1905, 2005, 2105, 2205, 2305 and / or 2405 described with reference to Figures 17, 18, 19, 20, 21, 22, 23 and / or 24. Although the UE 2615 may include a single UE antenna, there may be examples in which the UE 2615 may include multiple UE 2640 antennas.
[0298] [0298] The UE 2650 status module can be used, for example, to manage the UE 2615 transitions between an RRC idle state and an RRC connected state and can be in communication with other UE 2615 components, directly or indirectly, through one or more 2635 buses. The UE 2650 status module, or portions thereof, may include a processor, and / or some or all of the functions of the UE 2650 status module may be performed by the processor module UE 2610 and / or in conjunction with the UE 2610 processor module.
[0299] [0299] The EU 2660 wireless communication management module can be configured to perform and / or control some or all of the features and / or functions described with reference to Figures 1, 2, 3, 4, 5, 6, 7 , 8A, 8B, 9, 10, 11A, 11B, 11C, 12, 13, 14, 15 and / or 16 in relation to wireless communication through the first radio frequency band and / or the second radio frequency band . For example, the EU 2660 wireless communication management module can be configured to support a complementary downlink mode, a carrier aggregation mode and / or a standalone mode using the first radio frequency spectrum band and / or the second band of radio frequency spectrum. The UE 2660 wireless communication management module may include a licensed LTE / LTE-A RF spectrum band module from EU 2665 ~ 0 W W. ~ ¶ - V_ g ~ LLmjg4j ^^ L ^ U YLAJ-4 LLLc ^ LLjf ^ Aj ^ Am LAO ígLLL4LLjg4Y ~ co LA% ~ j.jmj-ji mm ~ .LL LLLA first radio frequency spectrum band and one band module EU 2670 LTE / LTE-A unlicensed RF spectrum configured to handle LTE / LTE-A communications in the second radio frequency spectrum band. The UE 2660 wireless communication management module, or portions thereof, may include a processor, and / or part or all of the functionality of the UE 2660 wireless communication module can be performed by the 2610 processor module and / or in conjunction with the 2610 processor module. In some examples, the EU 2660 wireless management module may be an example of the 1720, 1820, 1920, 2020, 2120, 2220 wireless management module , 2320 and / or 2420 described with reference to Figures 17, 18, 19, 20, 21, 22, 23 and / or
[0300] [0300] Figure 27 is a flow chart illustrating an example of a 2700 method for wireless communication, in accordance with various aspects of the present disclosure. For clarity, method 2700 is described below with reference to aspects of one or more of the 105, 205, 205-ae and / or 2505 base stations described with reference to Figures 1, 2 and / or 25, to aspects of one or more among UES 115,
[0301] [0301] In block 2705, method 2700 may include transmitting a first signal to indicate access 0 0 - == "J." .L J. "P" "r a radio frequency spectrum band. radio frequency can be a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as use of W1-Fi. The spectrum band radio frequency can also be a licensed licensed radio spectrum band, with a plurality of mobile network operators authorized to access. The operation (operations) in block 2705 can be performed with use of the 1720, 1820, 1920, 2560 and / or 2660 wireless communication management module described with reference to Figures 17, 18, 19, 25 and / or 26, and / or the channel access indication module 1835 and / or 1940 described with reference to Figures 18 and / or 19.
[0302] [0302] In some examples, the first signal can be transmitted using a plurality of interlaced resource blocks. Transmission of the first signal 855 in this manner may enable the first signal 855 to occupy at least a certain percentage of the frequency bandwidth available in the radio frequency spectrum band and / or satisfy one or more regulatory requirements (for example, a requirement for that the first signal 855 occupies at least 80% of the available frequency bandwidth).
[0303] [0303] In block 2710, method 2700 may include transmitting information with the first signal in the radio frequency spectrum band. The operation (s) in block 2710 can be performed using the wireless communication management module 1720, 1820, 1920, 2560 and / or 2660 described with reference to Figures 17, 18 , 19, 25 and / or 26, and / or the 1840 and / or 1945 information transmission module described with reference to Figures 18 and / or 19.
[0304] [0304] The information transmitted may include various types of information. In some examples, the information may include a cell ID, a PLMN ID, or a combination thereof. In some examples, the information may indicate a frame structure for transmission in the radio frequency band (for example, the LBT radio frame duration). In some examples, the information may indicate several subframes and / or symbols that will be used for transmission in a frame structure in the radio spectrum band (for example, five subframes are used for transmission over a ten millisecond frame duration. which includes ten subframes). An indication of several subframes and / or symbols that will be used for transmission in a frame structure in the radio frequency spectrum band can enable a receiving device, such as a UE, to enter a low energy state in a while previous (for example, immediately after receiving the transmitted subframes), thereby saving energy. In some examples, the information may indicate an uplink configuration and / or a downlink configuration for transmission in the radio spectrum band (for example, an uplink configuration and / or a downlink configuration of a structure frame in the radio frequency band). An indication of an uplink configuration and / or a downlink configuration for transmission in the radio frequency band can enhance the realization of eIMTA functionality. In some examples, the information may indicate the possibility of a maximum number of subframes, of a frame, being used for transmission in the radio frequency band (for example, a single bit can be used to indicate the possibility of a maximum number of subframes to be used for transmission in a radio frequency band frame structure or the possibility of less than the maximum number of subframes to be used for transmission in the radio frequency band structure frame). In some examples, the information may indicate several antennas to use for receiving a transmission carried on a component carrier in the radio frequency spectrum band (for example, several antennas to receive the transmission from the component carrier during a frame structure of the radio frequency spectrum band, as described, for example, with reference to Figures 9 and / or 10). The information may additionally or alternatively include any combination of the above types of information and / or other types of information, including other types of system information.
[0305] [0305] In some examples of the 2700 method, transmitting information with the first signal may include transmitting information as part of the first signal. In these examples, the first signal can be generated based, at least partially, on a sequence. The sequence can be a function of the information. For example, the sequence can be a function of a cell ID, a PLMN ID or a combination thereof. The sequence can be additionally or alternatively a function of any one or a combination of the types of information indicated in this document.
[0306] [0306] In other examples in which a transmission of information with the first signal may include transmitting information as part of the first signal, method 2700 may include selecting a first phase from a plurality of phases for the transmission of the first signal. The different phases of the plurality of phases can correspond to different information. In these examples, a transmission of information with the first signal may include transmitting the first signal in the first phase.
[0307] [0307] In some examples of method 2700, transmitting information with the first signal may include transmitting information on a second signal next to the first signal. The second signal can be separated from the first signal.
[0308] [0308] In some examples of the 2700 method, the first signal and information can be transmitted a single OFDM symbol period from the radio spectrum band. In some examples of the 2700 method, the first signal can be transmitted during a first OFDM symbol period of the radio spectrum band and a second OFDM symbol period of the radio spectrum band, and the information can be transmitted during the second OFDM symbol period of the radio spectrum band. In some examples, the first OFDM symbol period of the radio spectrum band and the second OFDM symbol period of the radio spectrum band may be adjacent to the OFDM symbol periods.
[0309] [0309] Thus, method 2700 can provide wireless communication. It should be noted that the 2700 method is just a deployment and that the 2700 method operations can be redisposed or otherwise modified so that other deployments are possible.
[0310] [0310] Figure 28 is a flow chart illustrating an example of a 2800 method for wireless communication, in accordance with various aspects of the present disclosure. For clarity, method 2800 is described below with reference to aspects of one or more of the 105, 205, 205-ae and / or 2505 base stations described with reference to Figures 1, 2 and / or 25, to aspects of one or more among UEs 115, 215, 215-a, 215-b, 215-C and / or 2615 described with reference to Figures 1, 2 and / or 26, and / or aspects of one or more of the devices 1705, 1805 and / or 1905 described with reference to Figures 17, 18 and / or 19. In some examples, a base station, UE and / or apparatus may execute one or more sets of codes to control the functional elements of the base, the UE and / or the device to perform the functions described below.
[0311] [0311] In block 2805, method 2800 may include transmitting a first signal to indicate access to a first channel (for example, a reserve of the same) in a radio frequency spectrum band. The first signal can be transmitted during a first OFDM symbol period of the radio spectrum band and a second OFDM symbol period of the radio spectrum band. In some examples, the first OFDM symbol period of the radio spectrum band and the second OFDM symbol period of the radio spectrum band may be adjacent to the OFDM symbol periods. The radio frequency band may be a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as use of W1-Fi . The radio spectrum band can also be a shared licensed radio spectrum band, with a plurality of mobile network operators being allowed access. The operation (s) in block 2805 can be performed using the wireless communication management module 1720, 1820, 1920, 2560 and / or 2660 described with reference to Figures 17, 18 , 19, 25 and / or 26, and / or the access indication module for channel 1835 and / or 1940 described with reference to Figures 18 and / or 19.
[0312] [0312] In block 2810, method 2800 may include transmitting information with the first signal in the radio frequency spectrum band. An information transmission with the first signal may include transmitting a second signal that carries the information. The second signal can be transmitted during the second OFDM symbol period of the radio spectrum band. The first signal can provide AGC information and / or a phase reference for the second signal. The operation (s) in block 2810 can be performed using the wireless communication management module 1720, 1820, 1920, 2560 and / or 2660 described with reference to Figures 17, 18 , 19, 25 and / or 26, and / or the 1840 and / or 1945 information transmission module described with reference to Figures 18 and / or 19.
[0313] [0313] The information transmitted may include various types of information. In some examples, the information may include a cell ID, a PLMN ID, or a combination thereof.
[0314] [0314] In some examples of the 2800 method, the first signal can be transmitted using a first plurality of interlaced resource blocks and / or the second signal can be transmitted using a second plurality of interlaced resource blocks. Transmission of the first signal and / or the second signal in this manner may enable the first signal and / or the second signal to occupy at least a certain percentage of the frequency bandwidth available in the radio frequency band and / or satisfy one or more regulatory requirements (for example, a requirement that the first signal occupy at least 80% of the available frequency bandwidth).
[0315] [0315] In this way, the 2800 method can provide wireless communication. It should be noted that the 2800 method is only a deployment and that the operations of the 2800 method can be redeployed or otherwise modified so that other deployments are possible.
[0316] [0316] Figure 29 is a flow chart illustrating an example of a 2900 method for wireless communication, in accordance with various aspects of the present disclosure. For clarity, method 2900 is described below with reference to aspects of one or more of the 105, 205, 205-ae and / or 2505 base stations described with reference to Figures 1, 2 and / or 25, to aspects of one or more among UES 115, 215, 215-a, 215-b, 215-C and / or 2615 described with reference to Figures 1, 2 and / or 26, and / or aspects of one or more of the devices 1705, 1805 and / or 1905 described with reference to Figures 17, 18 and / or 19. In some examples, a base station, UE and / or apparatus may execute one or more sets of codes to control the functional elements of the base, the UE and / or the device to perform the functions described below.
[0317] [0317] In block 2905, method 2900 may include determining several antennas to be used to receive a transmission carried on a component carrier in a radio frequency spectrum band. The radio frequency band may be a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as use of W1-Fi . The radio spectrum band can also be a licensed radio spectrum band, with a plurality of mobile network operators being allowed access. The operation (s) in block 2905 can be performed using the wireless communication management module 1720, 1820, 1920, 2560 and / or 2660 described with reference to Figures 17, 18 , 19, 25 and / or 26, and / or the 1960 antenna selection module described with reference to Figure 19.
[0318] [0318] In some examples of the 2900 method, determining the number of antennas to be used to receive a transmission carried on the component carrier in the radio spectrum band may include determining the number of antennas to be used based, at least partially , in an uplink configuration or in a downlink configuration associated with the component carrier (for example, an uplink configuration or a downlink configuration associated with a frame and / or a subframe of the component carrier). In some examples or other examples of the 2900 method, determining the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency spectrum band may include determining the number of antennas to be used based, at least partially, in a conflict procedure associated with each of a plurality of component carriers used to serve a UE (for example, based, at least partially, on a success or failure of the conflict procedure performed for each among the plurality of component carriers).
[0319] [0319] In some examples of the 2900 method, the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency spectrum band can be selected for each subframe of a component carrier frame. In some examples of the 2900 method, the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency spectrum band can be selected for each frame of the component carrier.
[0320] [0320] In block 2910, method 2900 may include transmitting a first signal to indicate access to a first channel (for example, a reserve of the same) in the radio frequency spectrum band. The operation (s) in block 2910 can be performed using the wireless communication management module 1720, 1820, 1920, 2560 and / or 2660 described with reference to Figures 17, 18 , 19, 25 and / or 26, and / or the access indication module for channel 1835 and / or 1940 described with reference to Figures 18 and / or 19.
[0321] [0321] In block 2915, method 2900 may include transmitting information with the first signal in the radio frequency spectrum band. The information may indicate several antennas to use for receiving a transmission carried on a component carrier in the radio spectrum band (for example, several antennas to receive the transmission from the component carrier during a frame structure of the spectrum band) radio frequency, as described, for example, with reference to Figures 9 and / or 10). The operation (s) in block 2915 can be performed using the wireless communication management module 1720, 1820, 1920, 2560 and / or 2660 described with reference to Figures 17, 18 , 19, 25 and / or 26, and / or the 1840 and / or 1945 information transmission module described with reference to Figures 18 and / or 19.
[0322] [0322] In some examples of the 2900 method, the information transmitted may also include several other types of information. In some examples, the information may include a cell ID, a PLMN ID, or a combination thereof. In some examples, the information may indicate a frame structure for transmission in the radio frequency band (for example, the LBT radio frame duration). In some examples, the information may indicate several subframes and / or symbols that will be used for transmission in a frame structure in the radio spectrum band (for example, five subframes are used for transmission over a ten millisecond frame duration. which includes ten subframes). An indication of several subframes and / or symbols that will be used for transmission in a frame structure in the radio frequency spectrum band can enable a receiving device, such as a UE, to enter a low energy state in a while previous (for example, immediately after receiving the transmitted subframes), thereby saving energy.
[0323] [0323] In some examples of the 2900 method, transmitting information with the first signal may include transmitting information as part of the first signal. In these examples, the first signal can be generated based, at least partially, on a sequence. The sequence can be a function of the information. For example, the sequence can be a function of a cell ID, a PLMN ID or a combination thereof. The sequence can be additionally or alternatively a function of any one or a combination of the types of information indicated in this document.
[0324] [0324] In some examples of the 2900 method, transmitting information with the first signal may include transmitting information on a second signal next to the first signal. The second signal can be separated from the first signal.
[0325] [0325] In some examples, the 2900 method may include selecting a first phase from a plurality of phases for transmitting the first signal. The different phases of the plurality of phases can correspond to different information. In these examples, a transmission of information with the first signal may include transmitting the first signal in the first phase.
[0326] [0326] In some examples of the 2900 method, the first signal and information can be transmitted during a single OFDM symbol period. In some examples of the 2900 method, the first signal can be transmitted during a first OFDM symbol period and a second OFDM symbol period, and information can be transmitted during the second OFDM symbol period. In some examples, the first OFDM symbol period and the second OFDM symbol period can be adjacent OFDM symbol periods.
[0327] [0327] In some examples of the 2900 method, the first signal can be transmitted using a plurality of interlaced resource blocks. Transmission of the first signal 855 in this way may enable the first signal 855 to occupy at least a certain percentage of the frequency bandwidth available in the radio frequency spectrum band and / or satisfy one or more regulatory requirements (for example, a requirement for that the first signal 855 occupies at least 80% of the available frequency bandwidth).
[0328] [0328] In block 2920, method 2900 may include adjusting a pre-coding matrix, a classification and / or an MCS for a data transmission through the component carrier in the radio frequency band. The pre-coding matrix, the classification and / or the MCS can be adjusted based, at least partially, on the number of antennas to be used to receive the component carrier in the radio frequency spectrum band, as determined in block 2905.
[0329] [0329] In block 2925, method 2900 may include transmitting data transmission through the component carrier in the radio frequency spectrum band, in accordance with the adjusted pre-coding matrix, with the classification and / or with the MCS.
[0330] [0330] In this way, the 2900 method can provide wireless communication. It should be noted that the 2900 method is only a deployment and that the operations of the 2900 method can be redeployed or otherwise modified so that other deployments are possible.
[0331] [0331] Figure 30 is a flow chart illustrating an example of a 3000 method for wireless communication, in accordance with various aspects of the present disclosure. For the sake of clarity, the 3000 method is described below with reference to aspects of one or more of the 105, 205, 205-ae and / or 2505 base stations described with reference to Figures 1, 2 and / or 25, to aspects of one or more among UEs 115, 215, 215-a, 215-b, 215-C and / or 2615 described with reference to Figures 1, 2 and / or 26, and / or aspects of one or more of the devices 1705, 2005, 2105 and / or 2205 described with reference to Figures 17, 20, 21 and / or 22. In some examples, a base station, UE and / or apparatus may execute one or more sets of codes to control the elements functionalities of the base station, the UE and / or the device to perform the functions described below.
[0332] [0332] In block 3005, method 3000 may include resolving a conflict to access the radio frequency spectrum band. The radio frequency band may be a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as use of W1-Fi . The radio spectrum band can also be a licensed radio spectrum band, with a plurality of mobile network operators being allowed access. The operation (s) in block 3005 can be performed using the communication management module 1720, 2020, 2120, 2220, 2560 and / or 2660 described with reference to Figures 17, 20, 21, 22, 25 and / or 26, and / or the conflict management module 2035, 2140 and / or 2235 described with reference to Figures 20, 21 and / or 22.
[0333] [0333] After resolving the conflict to access the radio spectrum band, and in block 3010, method 3000 may include transmitting a first signal in order to align a start point of a second signal with a reference limit associated with the band of radio frequency spectrum. In some instances, the first signal can be transmitted before the second signal. The operation (s) in block 3010 can be performed using the communication management module 1720, 2020, 2120, 2220, 2560 and / or 2660 described with reference to Figures 17, 20, 21, 22, 25 and / or 26, and / or the alignment signal transmission module 2040, 2150 and / or 2255 described with reference to Figures 20, 21 and / or 22.
[0334] [0334] In some examples .of the 3000 method, the first signal may include a variable length training sequence. The variable-length training sequence may, in some examples, include one or more fixed-length transmission units. In other examples of the 3000 method, the first signal may include a variable-length training sequence and at least one fixed-length training sequence.
[0335] [0335] In some examples of the 3000 method, the second signal may include a signal indicating the solution of the conflict to access the radio frequency spectrum band (for example, a CUBS). In other examples of the 3000 method (for example, examples in which a transmission apparatus "is operating in an LBT-LBE operating mode in the radio frequency spectrum band), the second signal may include a data transmission.
[0336] [0336] In examples of the 3000 method, the reference limit may include a limit of an OFDM symbol period. In these examples, a conflict procedure can be performed in accordance with a conflict priority during the OFDM symbol period. The conflict priority can determine when an apparatus (for example, a base station or UE that performs the 3000 method) performs a conflict procedure within the OFDM symbol period associated with the radio spectrum band. In this way, the conflict priority can provide a device that performs a conflict procedure earlier with a preference to resolve the conflict procedure over a device that performs a conflict procedure later. In some examples of the 3000 method, the first signal can be associated with the conflict priority of the transmission device of the same (for example, a base station or UE that performs the 3000 method), so that the first signal is transmitted during a portion of the OFDM symbol period based, at least partially, on the conflict priority. In this way, for example, the first signal can be transmitted over a larger portion of the OFDM symbol period when the first signal is associated with a conflict priority that allows an apparatus to perform a conflict procedure previously within the symbol period of OFDM. Similarly, and as an additional example, the first
[0337] [0337] In some examples, the reference limit may include a space limit of a frame associated with the radio spectrum band and / or a limit of a subframe of a frame associated with the radio spectrum band.
[0338] [0338] In some examples, the 3000 method may include transmitting information as part of the first signal. The information may include, for example, AGC information and / or a phase reference for the second signal.
[0339] [0339] In some examples of the 3000 method, the first signal and / or the second signal can be transmitted using a plurality of interlaced resource blocks. Transmission of the first signal and / or the second signal in this manner may enable the first signal and / or the second signal to occupy at least a certain percentage of the frequency bandwidth available in the radio frequency band and / or satisfy one or more regulatory requirements (for example, a requirement that the first signal and / or second signal occupy at least 80% of the available frequency bandwidth).
[0340] [0340] In this way, the 3000 method can provide wireless communication. It should be noted that the 3000 method is only a deployment and that the operations of the 3000 method can be redeployed or otherwise modified so that other deployments are possible.
[0341] [0341] Figure 31 is a flow chart illustrating an example of a 3100 method for wireless communication, in accordance with various aspects of the present disclosure. For clarity, method 3100 is described below with reference to aspects of one or more of the 105, 205, 205-ae and / or 2505 base stations described with reference to Figures 1, 2 and / or 25, to aspects of one or more among UES 115, 215, 215-a, 215-b, 215-c and / or 2615 described with reference to Figures 1, 2 and / or 26, and / or aspects of one or more of the 1705 devices , 2005 and / or 2105 described with reference to Figures 17, 20 and / or 21. In some examples, a base station, UE and / or apparatus may execute one or more sets of codes to control the functional elements of the base station , the UE and / or the device to perform the functions described below.
[0342] [0342] In block 3105, method 3100 may include accessing timing information. Timing information can include, for example, timing of one or more reference limits associated with a radio frequency spectrum band. The radio frequency band may be a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as use of W1-Fi . The radio spectrum band can also be a licensed radio spectrum band, with a plurality of mobile network operators being allowed access. The operation (s) in block 3105 can be performed using the wireless communication management module 1720, 2020, 2120, 2560 and / or 2660 described with reference to Figures 17, 20 , 21, 25 and / or 26, and / or the timing information access module 2135 described with reference to Figure 21.
[0343] [0343] In block 3110, method 3100 may include resolving a conflict to access the radio frequency spectrum band. The radio frequency band may be a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as use of W1-Fi . The radio spectrum band can also be a licensed radio spectrum band, with a plurality of mobile network operators being allowed access. The operation (s) in block 3110 can be performed using the wireless communication management module 1720, 2020, 2120, 2560 and / or 2660 described with reference to Figures 17, 20 , 21, 25 and / or 26, and / or the conflict management module 2035 and / or 2140 described with reference to Figures 20 and / or 21.
[0344] [0344] In block 3115, method 3100 may include determining a reference limit (for example, a reference limit that occurs after resolving the conflict to access the radio frequency band) associated with the radio frequency band, with based, at least partially, on timing information and conflict resolution to access the radio frequency spectrum band. The operation (s) in block 3115 can be performed using the wireless communication management module 1720, 2020, 2120, 2560 and / or 2660 described with reference to Figures 17, 20 , 21, 25 and / or 26, and / or the reference limit determination module 2145 described with reference to Figure 21.
[0345] [0345] After resolving the conflict to access the radio spectrum band, and in block 3120, method 3100 may include transmitting a first signal to align a start point of a second signal to a specific reference limit associated with the band of radio frequency spectrum. In some instances, the first signal can be transmitted before the second signal. The operation (s) in block 3120 can be performed using the wireless communication management module 1720, 2020, 2120, 2560 and / or 2660 described with reference to Figures 17, 20 , 21, 25 and / or 26, and / or the 2040 and / or 2150 alignment signal transmission module described with reference to Figures 20 and / or 21.
[0346] [0346] In some examples of the 3100 method, the first signal may include a variable length training sequence. The variable-length training sequence may, in some examples, include one or more fixed-length transmission units. In other examples of the 3000 method, the first signal may include a variable-length training sequence and at least one fixed-length training sequence.
[0347] [0347] In some examples of the 3100 method, the second signal may include a signal indicating the solution of the conflict to access the radio frequency spectrum band (for example, a CUBS). In other examples of the 3000 method (for example, examples in which a transmission apparatus "is operating in an LBT-LBE operating mode in the radio frequency spectrum band), the second signal may include a data transmission.
[0348] [0348] In examples of method 3100, the reference limit may include a limit of an OFDM symbol period. In these examples, a conflict procedure can be performed in accordance with a conflict priority during the OFDM symbol period. Conflict priority can determine when a device (for example, a base station or UE that performs the method
[0349] [0349] In some examples, the reference limit may include a space limit of a frame associated with the radio spectrum band and / or a limit of a subframe of a frame associated with the radio spectrum band.
[0350] [0350] In some examples, the 3100 method may include transmitting information as part of the first signal. The information may include, for example,
[0351] [0351] In some examples of the 3100 method, the first signal and / or the second signal can be transmitted using a plurality of interlaced resource blocks. Transmission of the first signal and / or the second signal in this manner may enable the first signal and / or the second signal to occupy at least a certain percentage of the frequency bandwidth available in the radio frequency band and / or satisfy one or more regulatory requirements (for example, a requirement that the first signal and / or second signal occupy at least 80% of the available frequency bandwidth).
[0352] [0352] Thus, method 3100 can provide wireless communication. It should be noted that the 3100 method is only a deployment and that the operations of the 3100 method can be redeployed or otherwise modified so that other deployments are possible.
[0353] [0353] Figure 32 is a flow chart illustrating an example of a 3200 method for wireless communication, in accordance with various aspects of the present disclosure. For clarity, the 3200 method is described below with reference to aspects of one or more of the base stations 105, 205, 205-a and / or 2505 described with reference to Figures 1, 2 and / or 25, aspects of one or more among UES 115, 215, 215-a, 215-b, 215-C and / or 2615 described with reference to Figures 1, 2 and / or 26, and / or aspects of one or more of the devices 1705, 2005 and / or 2205 described with reference to Figures 17, 20 and / or 22. In some examples, a base station, UE and / or apparatus may execute one or more sets of codes to control the functional elements of the base, the UE and / or the device to perform the functions described below.
[0354] [0354] In block 3205, method 3200 may include resolving a conflict to access the radio frequency spectrum band. The radio frequency band may be a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as use of W1-Fi . The radio spectrum band can also be a shared licensed radio spectrum band, with a plurality of mobile network operators being allowed access. The operation (s) in block 3205 can be performed using the wireless communication management module 1720, 2020, 2220, 2560 and / or 2660 described with reference to Figures 17, 20 , 22, 25 and / or 26, and / or the conflict management module 2035 and / or 2235 described with reference to Figures 20 and / or 22. In some examples, solving the conflict to access the radio spectrum band it can be achieved while operating in an LBT-LBE operating mode through the radio frequency spectrum band.
[0355] [0355] After resolving the conflict to access the radio spectrum band, and in block 3210, method 3200 may include transmitting a first signal to indicate a radio frame boundary delay associated with the radio frequency spectrum band. The operation (s) in block 3210 can be performed using the wireless communication management module 1720, 2020, 2220, 2560 and / or 2660 described with reference to Figures 17, 20 , 22, 25 and / or 26, of the 2040 and / or 2255 alignment signal transmission module described with reference to Figures 20 and / or 22, and / or of the reference limit determination module 2250 described with reference to Figure
[0356] [0356] In block 3215, method 3200 may include transmitting a second signal to pass location information to overload signals in relation to the radio frame limit timeout. In some examples, the second signal may include RRC signaling. In some instances, the second signal may pass location information to a downlink control channel in relation to the radio frame boundary. In some examples, the second signal can pass location information to resources used for CSI feedback. The operation (s) in block 3215 can be performed using the wireless communication management module 1720, 2020, 2220, 2560 and / or 2660 described with reference to Figures 17, 20 , 22, 25 and / or 26, and / or the location information transmission module 2260 described with reference to Figure 22.
[0357] [0357] In some examples of the 3200 method, the first signal may include the second signal (for example, the first signal may be a CUBS that passes location information to overload signals in relation to the radio frame limit timing) .
[0358] [0358] Figure 33 is a flow chart illustrating an example of a 3300 method for wireless communication, in accordance with various aspects of the present disclosure. For clarity, method 3300 is described below with reference to aspects of one or more of the 105, 205, 205-ae and / or 2505 base stations described with reference to Figures 1, 2 and / or 25, to aspects of one or more among UES 115, 215, 215-a, 215-b, 215-c and / or 2615 described with reference to Figures 1, 2 and / or 26, and / or aspects of one or more of the 1705 devices , 2305 and / or 2405 described with reference to Figures 17, 23 and / or 24. In some examples, a base station, UE and / or apparatus may execute one or more sets of codes to control the functional elements of the base station , the UE and / or the device to perform the functions described below.
[0359] [0359] In block 3305, method 3300 may include resolving the conflict to access a radio frequency spectrum band during the first frame period. The first frame period can be selected from a plurality of different frame periods (for example, from a plurality of different frame periods that last two milliseconds, five milliseconds and / or ten milliseconds). In some instances, the first frame period may be an LBT radio frame period. In some instances, each of the plurality of different frame periods may be an LBT radio frame period. The radio frequency band may be a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as use of W1-Fi . The radio spectrum band can also be a shared licensed radio spectrum band, with a plurality of mobile network operators being allowed access. The operation (s) in block 3305 can be performed using the wireless communication management module 1720, 2320, 2420, 2560 and / or 2660 described with reference to Figures 17, 23 , 24, 25 and / or 26, and / or the conflict management module 2335 and / or 2440 described with reference to Figures 23 and / or 24.
[0360] [0360] In block 3310, method 3300 may include transmitting a signal at a periodicity during one or more subframes of the first frame period for each of the plurality of different frame periods.
[0361] [0361] In some examples, the signal can be transmitted on an overload channel, and the overload channels can include a CRS, eCRS, a CSI-RS, a synchronization signal and / or a SIB broadcast channel.
[0362] [0362] In this way, the 3300 method can provide wireless communication. It should be noted that the 3300 method is only a deployment and that the 3300 method operations can be redeployed or otherwise modified so that other deployments are possible.
[0363] [0363] Figure 34 is a flow chart illustrating an example of a 3400 method for wireless communication, in accordance with various aspects of the present disclosure. For clarity, the 3400 method is described below with reference to aspects of one or more of the 105, 205, 205-ae and / or 2505 base stations described with reference to Figures 1, 2 and / or 25, to aspects of one or more among UES 115, 215, 215-a, 215-b, 215-C and / or 2615 described with reference to Figures 1, 2 and / or 26, and / or aspects of one or more of the devices 1705, 2305 and / or 2405 described with reference to Figures 17, 23 and / or 24. In some examples, a base station, UE and / or apparatus may execute one or more sets of codes to control the functional elements of the base, the UE and / or the device to perform the functions described below.
[0364] [0364] In block 3405, method 3400 may include selecting a first frame period from a plurality of different frame periods (for example, from a plurality of different frame periods that have durations of two milliseconds, five milliseconds and / or ten milliseconds). In some instances, the first frame period may be an LBT radio frame period. In some instances, each of the plurality of different frame periods may be an LBT radio frame period. The operation (s) in block 3405 can be performed using the wireless communication management module 1720, 2320, 2420, 2560 and / or 2660 described with reference to Figures 17, 23 , 24, 25 and / or 26, and / or the frame period selection module 2435 described with reference to Figure 24.
[0365] [0365] In block 3410, method 3400 may include resolving the conflict to access a radio frequency spectrum band during the first frame period. The unlicensed radio frequency band may be a radio frequency band for which devices may need to conflict over access due to the fact that the radio frequency band is available for unlicensed use, such as use of W1 -Fi. The radio spectrum band can also be a shared licensed radio spectrum band, with a plurality of mobile network operators being allowed access. The operation (s) in block 3410 can be performed using the wireless communication management module 1720, 2320, 2420, 2560 and / or 2660 described with reference to Figures 17, 23 , 24, 25 and / or 26, and / or the conflict management module 2335 and / or 2440 described with reference to Figures 23 and / or 24.
[0366] [0366] In block 3415, method 3400 may include determining the possibility of a signal to be transmitted at a periodicity during one or more subframes of the first frame period, and for each of the plurality of different frame periods, colliding with a timing of a conflict procedure. When it is determined that the signal does not collide with the timing of the conflict procedure, block 3420 can direct the flow of method 3400 to block 3425. When it is determined that the signal collides with the timing of the conflict procedure, block 3420 can direct the flow of method 3400 to block 3430. The operation (s) in block 3415 and / or block 3420 can be performed using the 1720 wireless management module, 2320, 2420, 2560 and / or 2660 described with reference to Figures 17, 23, 24, 25 and / or 26, and / or of the signal collision detection module 2445 described with reference to Figure 24.
[0367] [0367] In block 3425, method 3400 may include transmitting a signal at a periodicity during one or more subframes of the first frame period and for each of the plurality of different frame periods. In some examples, the periodicity can be a fixed periodicity and / or the signal can be transmitted at a fixed time and / or at a fixed frequency location, as described, for example, with reference to Figure 16.
[0368] [0368] In some examples, the signal can be transmitted on an overload channel, and the overload channels can include a CRS, eCRS, a CSI-RS, a synchronization signal and / or a SIB broadcast channel.
[0369] [0369] In block 3430, method 3400 may include preventing signal transmission based, at least partially, on a determination that the signal conflicts with the timing of the conflict procedure, as described, for example, with reference to Figure 16.
[0370] [0370] In this way, the 3400 method can provide wireless communication. It should be noted that the 3400 method is only a deployment and that the operations of the 3400 method can be redeployed or otherwise modified so that other deployments are possible.
[0371] [0371] In some examples, aspects of one or more of the 2700, 2800, 2900, 3000, 3100, 3200, 3300 and / or 3400 methods can be combined.
[0372] [0372] The detailed description set out above with reference to the accompanying drawings describes exemplary examples and does not represent only those examples that can be deployed or that are within the scope of the claims. The terms "example" and "exemplary", when used in the present description, mean "that serves as an example, occurrence or illustration", and not "preferred" or "advantageous over other modalities". The detailed description includes specific details for the purpose of providing an understanding of the set of procedures described. This set of procedures, however, can be practiced without these specific details. In some examples, known structures and devices are shown in the form of a block diagram in order to avoid in order to avoid the incompressibility of the concepts of the described examples.
[0373] [0373] Information and signals can be represented using any of a variety of technologies and a set of different procedures. For example, data, instructions, commands, information, signals, bits, symbols, and integrated circuits that can be indicated throughout the above description can be represented by voltages, currents, electromagnetic waves, particles or magnetic fields, particles or optical fields or any combination of them.
[0374] [0374] The various blocks and illustrative modules described in conjunction with the disclosure in this document can be deployed or performed with a general purpose processor, digital signal processor (DSP), ASIC, PGA or other programmable logic device, distinct port or transistor logic, distinct hardware components or any combination thereof designed to perform the functions described in this document. A general processor can be a microprocessor, however, alternatively, the processor can be any processor, controller, microcontroller or conventional state machine. A processor can also be deployed as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a variety of microprocessors, an 175/1717 or more microprocessors together with a DSP core or any other such configuration.
[0375] [0375] The functions described in this document can be implemented in hardware, software, firmwares or any combination thereof. If deployed in software that runs through a processor, functions can be stored or transmitted as one or more instructions or code on computer-readable media. Other examples and implementations are within the scope and spirit of the disclosure and attached claims. For example, due to the nature of the software, the functions described above can be implemented with the use of software executed through a processor, hardware, firmware, direct connection or corributions of any of them. Resource deployment functions can also be physically located in different positions, which includes being distributed so that the function portions are deployed in different physical locations. In addition, as used herein, including in the claims, "or" as used in a list of items preceded by "at least one of" indicates a disjunctive list so that, for example, a list of "at least one of A , B or C "means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).
[0376] [0376] Computer-readable media includes both computer storage media and communication media, including any media that facilitates the transfer of a computer program from one location to another. A storage medium can be any available medium that can be accessed by a general purpose or specific use computer. By way of example, however, without limitation, computer-readable media or may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices or any other media that can be used to port or store a desired program code medium in the form of instructions or data structures and which can be accessed by a general purpose or special purpose computer or by a general purpose or general purpose processor.
[0377] [0377] The foregoing description of the disclosed modalities is provided to enable anyone skilled in the art to produce or use the present invention. Various changes in such modalities will be immediately apparent to persons skilled in the art, and the generic principles defined in this document can be applied to other variations without departing from the spirit or scope of the disclosure.
Throughout the present disclosure, the terms "example" or "example" indicate an example or an occurrence and do not imply or require any preference for the example given.
Accordingly, the present disclosure should not be limited to the modalities shown in this document,
however, it must be in accordance with the broadest scope and consistent with the innovative principles and resources revealed in this document.

权利要求:
Claims (30)
[1]
1. Wireless communication method comprising: transmitting a first signal to indicate access to a first channel in a radio frequency spectrum band; and transmitting information with the first signal in the radio frequency spectrum band.
[2]
A method according to claim 1, wherein the information comprises system information.
[3]
A method according to claim 1, wherein transmitting information with the first signal comprises: transmitting information as part of the first signal.
[4]
A method according to claim 3, wherein the first signal is generated based, at least partially, on a sequence.
[5]
A method according to claim 4, wherein the sequence is a function of the information.
[6]
A method according to claim 1, wherein transmitting the information with the first signal comprises: transmitting information on a second signal next to the first signal, wherein the second signal is separate from the first signal.
[7]
Method according to claim 1, which further comprises: selecting a first phase from a plurality of phases for transmitting the first signal, in which different phases of the plurality of phases correspond to different information; wherein transmitting information with the first signal comprises transmitting the first signal in the first phase.
[8]
Method according to claim 1, wherein the first signal is transmitted during a first frequency division multiplexing symbol (OFDM) period of the radio frequency spectrum band and a second OFDM symbol period of the radio band radio frequency spectrum and information are transmitted during the second OFDM symbol period.
[9]
A method according to claim 8, which further comprises: transmitting a second signal that carries information during the second OFDM symbol period of the radio frequency band; wherein the first signal provides a phase reference for the second signal.
[10]
10. The method of claim 1, wherein the information indicates several subframes of a frame that are used for transmission in the radio frequency spectrum band.
[11]
11. Method according to claim 1, in which the information indicates several antennas to be used to receive a transmission carried on a component carrier in the radio frequency spectrum band.
[12]
A method according to claim 11, which further comprises: adjusting a modulation and coding scheme (MCS) for transmission of the component carrier in the radio frequency spectrum band based, at least partially, on the number of antennas to be be used to receive the component carrier in the radio frequency spectrum band.
t [:
E QÓ lt "3/6
W t
W
[13]
13. The method of claim 11, wherein the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency spectrum band is determined based, at least partially, on an uplink configuration. or in a downlink configuration associated with the component carrier.
[14]
14. The method of claim 11, wherein the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency spectrum band is determined based, at least in part, on an evaluation procedure. free channel (CCA) associated with each of a plurality of component carriers used to service user equipment (UE).
[15]
15. Method according to claim 11, which further comprises: selecting the number of antennas to be used to receive a transmission carried on the component carrier in the radio frequency band for each subframe of a frame of the component carrier in the band of radio frequency spectrum.
[16]
16. Method for wireless communications comprising: resolving conflict to access a radio frequency spectrum band; and after resolving the conflict to access the radio frequency band, transmit a first signal to align a start point of a second signal with a reference limit associated with the radio frequency band.
[17]
17. The method of claim 16, wherein the radio frequency band comprises an unlicensed radio frequency band.
[18]
18. The method of claim 16, which further comprises: accessing timing information; and determining the reference limit based, at least partially, on timing information and conflict resolution to access the radio frequency spectrum band.
[19]
19. The method of claim 16, wherein the first signal comprises a training sequence of varying length.
[20]
20. The method of claim 16, wherein the first signal comprises a training sequence of variable length and at least one training sequence of fixed length.
[21]
21. The method of claim 16, which further comprises: operating in a load-based equipment (LBE) mode of operation before speaking (LBT) in the radio frequency band.
[22]
22. The method of claim 16, wherein the reference limit comprises a limit of an orthogonal frequency division multiplexing syribolo period associated with the radio frequency spectrum band.
[23]
23. The method of claim 22, wherein the first signal is associated with a conflict priority, and wherein the first signal is transmitted during a portion of the OFDM symbol period based, at least partially, on the priority conflict.
[24]
24. A wireless communication device comprising: a processor; memory in electronic communication with the processor; and instructions stored in memory, the instructions being executable by the processor to: resolve conflict to access a radio frequency spectrum band; and after resolving the conflict to access the radio spectrum band, transmit a first signal to align a start point of a second signal with a reference limit associated with the radio spectrum band.
[25]
25. A method for wireless communication comprising: resolving conflict to access a radio frequency spectrum band during a first frame period, the first frame period being selected from a plurality of different frame periods; and transmitting a signal at a periodicity during one or more subframes of the first frame period to each of the plurality of different frame periods.
[26]
26. The method of claim 25, wherein the periodicity is a fixed periodicity.
[27]
27. The method of claim 25, wherein transmitting the signal at periodicity comprises: transmitting the signal at a fixed time and at a fixed frequency location.
[28]
28. The method of claim 25, wherein the signal is transmitted over an overload channel.
[29]
29. The method of claim 25, wherein the first frame period comprises a listen before speak (LBT) frame period.
[30]
30. The method of claim 25, further comprising: determining the possibility of the signal colliding with a timing of a conflict procedure; and preventing signal transmission based, at least partially, on the determination that the signal conflicts with the timing of the conflict procedure.

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法律状态:
2020-12-29| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2020-12-29| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2021-12-07| B350| Update of information on the portal [chapter 15.35 patent gazette]|

优先权:

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申请号 | 申请日 | 专利标题

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US201461969080P| true| 2014-03-21|2014-03-21|

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US61/969,080|2014-03-21|

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US201461992174P| true| 2014-05-12|2014-05-12|

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