physical downlink control channel and hybrid auto repeat request feedback for multefire coverage enh

专利摘要:
Techniques for wireless communication are described. One method includes assigning a downlink subframe that is a first downlink subframe in a data structure; and transmitting a coded control signal during a first transmission opportunity, the coded control signal including a common portion for receiving devices, the common portion indicating a data frame structure, the coded control signal further including a device specific portion. for a specific receiving device, the specific portion of the device indicating uplink and downlink concessions during the data frame for the specific receiving device, wherein at least the common portion of the encoded control signal is transmitted during the sspe downlink subframe. .
公开号:BR112019010791A2
申请号:R112019010791
申请日:2017-11-30
公开日:2019-10-01
发明作者:Rico Alvarino Alberto；Liu Chih-Hao；Sureshbhai Patel Chirag；Yerramalli Srinivas；Kadous Tamer
申请人:Qualcomm Inc；
IPC主号:

专利说明:

DOWNLINK PHYSICAL CONTROL CHANNEL AND HYBRID AUTOMATIC REPEAT REQUEST FEEDBACK FOR IMPROVING MULTEFIRE COVERAGE
CROSSED REFERENCES [0001] This patent application claims priority for US Patent Application No. 15 / 811,335 by Liu et al., Entitled Downlink Physical Control Channel and Hybrid Automatic Repeat Request Feedback for MuLTEfire Coverage, presented at November 13, 2017; and U.S. Provisional Patent Application No. 62 / 432,460 to Liu et al. , entitled Downlink Physical Control Channel and Hybrid Automatic Replay Request Feedback to Improve MuLTEfire Coverage, presented on December 9, 2016; each of which is assigned to the assignee.
FUNDAMENTALS [0002] The following generally refers to wireless communication and, more specifically, the physical downlink control channel (PDCCH) and hybrid automatic repeat request feedback (HARQ) to improve MuLTEfire coverage.
[0003] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messages, broadcast and so on. These systems may be able to support communication with multiple users by sharing available system resources (for example, time, frequency and power). Examples of such multiple access systems include code division multiple access (CDMA) systems, access systems
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2/92 time division multiple (TDMA), frequency division multiple access (FDMA) systems and orthogonal frequency division multiple access (OFDMA) systems, (eg LTE system (Long Term Evolution) or system NR (New Radio)). A wireless multiple access communications system may include a number of base stations or access network nodes, each simultaneously supporting communication for multiple communication devices, which may also be known as user equipment (UE).
[0004] In some wireless communication systems, an UE may include machine-type communication (MTC) UEs that operate in a shared radio frequency spectrum band. In some cases, UEs may operate on a narrowband IoT (NB-IoT) deployment within a sub-GHz shared radio frequency spectrum band. Wireless communication systems that serve IoT (loT) devices have coverage expectations that are higher compared to the existing solutions offered by shared radio frequency spectrum wireless communication systems. In some instances, extensive coverage may include the use of wireless communication systems with a licensed frequency spectrum band. However, extending coverage areas for loT devices using the licensed radio frequency spectrum can be very expensive for sectors with loT deployments.
SUMMARY [0005] The techniques described refer to
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3/92 improved methods, systems, devices or devices that support the physical downlink control channel (PDCCH) and hybrid automatic repeat request feedback (HARQ) to improve MuLTEfire coverage. Setting up a PDCCH frame structure can include adjusting an improved PDCCH (ePDCCH) to have an enhanced machine-type PDCCH (eMPDCCH) waveform. For the existing legacy PDCCH, the PDCCH occupies a subframe (SF) and supports two sets of pairs of physical resource blocks. A physical resource block is a unit of transmission resource, including 12 subcarriers in the frequency domain and 1 timeslot (0.5 ms) in the time domain. Each set can include 2, 4 or 8 pairs of physical resource blocks. A pair of physical resource blocks can carry four control channel elements. The legacy PDCCH, therefore, can carry a total of 32 control channel elements per set, which may be insufficient to satisfy a target signal-to-noise (SR) value (for example, -14dB) and aggregation level (for example, aggregation level of 64). In some examples, assigning the size of the PDCCH to support two sets of pairs of physical resource blocks, so that each set can support 32 pairs of physical resource blocks, a target SNR value and an aggregation level can be achieved. As a result, the 32 pairs of physical resource blocks can carry 128 control channel elements. In some examples, 128 control channel elements can support two aggregate level 64 candidates. Since there are two sets, eMPDCCH can support up to four
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4/92 aggregation level 64.
[0006] A method for wireless communication at a base station is described. The method may include assigning a downlink subframe which is a first downlink subframe that occurs in the data frame; and transmitting a coded control signal during a first transmission opportunity, the coded control signal including a common portion for receiving devices, the common portion indicating a data frame structure, the coded control signal further including a specific portion of the device for a specific receiving device, the specific portion of the device indicating uplink leases and downlink leases during the data frame for the specific receiving device, where at least the common portion of the encoded control signal is transmitted during the subframe downlink selected.
[0007] A device for wireless communication at a base station is described. The device can include a processor, memory in electronic communication with the processor and instructions stored in memory. The instructions can be operable to make the processor assign a downlink subframe which is a first downlink subframe that occurs in the data frame; and transmitting a coded control signal during a first transmission opportunity, the coded control signal including a common portion for receiving devices, the common portion indicating a data frame structure, the coded control signal further including a specific portion of
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5/92 device to a specific receiving device, the specific portion of the device indicating uplink leases and downlink leases during the data frame to the specific receiving device, where at least the common portion of the encoded control signal is transmitted during the selected downlink subframe.
[0008] Another device for wireless communication at a base station is described. The apparatus may include means for assigning a downlink subframe which is a first downlink subframe occurring in the data frame; and means for transmitting a coded control signal during a first transmission opportunity, the coded control signal including a common portion for receiving devices, the common portion indicating a data frame structure, the coded control signal further including a portion device-specific to a specific receiving device, the device-specific portion indicating uplink leases and downlink leases during the data frame to the specific receiving device, where at least the common portion of the encoded control signal is transmitted during the selected downlink subframe.
[0009] A computer-readable non-transitory medium for wireless communication is described. The computer-readable non-transitory medium may include instructions operable to have a processor assign a downlink subframe which is a first downlink subframe that occurs in the data frame; and transmit a coded control signal during a first transmission opportunity, the coded control signal
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6/92 including a common portion for receiving devices, the common portion indicating a data frame structure, the coded control signal further including a specific portion of the device for a specific receiving device, the specific portion of the device indicating concessions of uplink and downlink leases during the data frame for the specific receiving device, where at least the common portion of the encoded control signal is transmitted during the selected downlink subframe.
[0010] Some examples of the computer-readable method, apparatus and non-transitory medium described above may also include processes, characteristics, means or instructions for transmitting a shared data signal during a plurality of downlink subframes during the first transmission opportunity ; and transmitting the shared data signal during a second transmission opportunity subsequent to the first transmission opportunity.
[0011] Some examples of the computer-readable method, apparatus and non-transitory medium described above may also include processes, resources, means or instructions for associating a trigger bit with the common portion of the coded control signal, the trigger bit indicating a transmission continuous shared data signal; and transmitting the trigger bit with the common portion of the control signal encoded during a downlink subframe which is a first downlink subframe that occurs in the data frame during the second transmission opportunity.
[0012] Some examples of the method, apparatus and means
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7/92 computer readable non-transitory described above may also include processes, resources, means or instructions for associating a trigger bit with the common portion of the encoded control signal, the trigger bit indicating continuous reception of the shared data signal; and transmitting the trigger bit with the common portion of the control signal encoded during a downlink subframe which is a first downlink subframe that occurs in a data frame during the second transmission opportunity.
[0013] In some examples of the computer-readable method, apparatus and non-transitory medium described above, the device-specific portion of the coded control signal indicates a number of repetitive transmissions of a shared data signal that occurs during frame downlink subframes of data. In some examples of the computer readable method, apparatus and non-transitory medium described above, the shared data signal comprises a physical shared downlink channel (PDSCH).
[0014] In some examples of the computer-readable method, apparatus and non-transient medium described above, the common portion of the coded control signal identifies an uplink subframe of the data frame during which a receiving device must transmit a confirmation signal (ACK).
[0015] Some examples of the computer-readable method, apparatus and non-transitory medium described above may also include processes, characteristics, means or instructions for determining a number of downlink subframes or uplink subframes of the data frame with
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8/92 basis, at least in part, on a duration of the first transmission opportunity. Some examples of the computer readable method, apparatus and non-transitory medium described above can determine the number of downlink subframes or uplink subframes of the data frame is based, at least in part, on a subframe configuration parameter.
[0016] Some examples of the computer-readable method, apparatus and non-transitory medium described above, determining the number of downlink subframes or uplink subframes of the data frame, may also include processes, characteristics, means or instructions for determining an SNR threshold ; and determine the number of downlink or uplink subframes based, at least on
part, in threshold SNR. [0017] On some examples method, apparatus and kinda not transient readable by computer described above, the sign of coded control is an eMPDCCH. In
some examples of the computer-readable method, apparatus and non-transitory medium described above, the common portion and the specific portion of the device comprise at least one of a PDCCH, an eMPDCCH and a common eMPDCCH (CeMPDCCH), or a combination thereof.
[0018] Some examples of the computer-readable method, apparatus and non-transitory medium described above may also include processes, resources, means or instructions for assigning a set size of the data frame to a predetermined number of pairs of physical resource blocks with at least in part, at an aggregation level. In some examples of the method, apparatus and medium
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9/92 computer readable non-transient described above, the predetermined number of pairs of physical resource blocks is 32. In some examples of the method, apparatus and non-transient computer readable medium described above, the aggregation level is 64 or higher.
[0019] A method for wireless communication on user equipment is described. The method may include receiving a control signal encoded in a data frame comprising a common portion and a specific portion of the device during a first transmission opportunity; identifying that the coded control signal is received during a downlink subframe which is a first downlink subframe occurring in the data frame; and decoding the control signal encoded in the first downlink subframe that occurs in the data frame.
[0020] A device for wireless communication at a base station is described. The device can include a processor, memory in electronic communication with the processor and instructions stored in memory. The instructions can be operable to cause the processor to receive a control signal encoded in a data frame comprising a common portion and a specific portion of the device during a first transmission opportunity; identifying that the coded control signal is received during a downlink subframe which is a first downlink subframe occurring in the data frame; and decoding the control signal encoded in the first downlink subframe that occurs in the data frame.
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10/92 [0021] Another device for wireless communication at a base station is described. The apparatus may include means for receiving a control signal encoded in a data frame comprising a common portion and a specific portion of the device during a first transmission opportunity; means for identifying that the coded control signal is received during a downlink subframe which is a first downlink subframe occurring in the data frame; and means for decoding the control signal encoded in the first downlink subframe that occurs in the data frame.
[0022] A computer-readable non-transitory medium for wireless communication is described. The computer-readable non-transitory medium may include instructions operable to cause a processor to receive a control signal encoded in a data frame comprising a common portion and a specific portion of the device during a first transmission opportunity;
identify that the sign in coded control is Received during a subframe in downlink which is a first downlink subframe what occurs in the framework of Dice; and decode the control signal encoded in the first subframe of downlink that occurs in the data frame s . [0023] Some examples of the method, apparatus and medium
non-transient, computer readable described above, decoding the coded control signal, may also include processes, characteristics, means or instructions for decoding the common portion that indicates the structure of the data frame; and decode the specific portion of the device that indicates uplink leases and leases of
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11/92 downlink during the data frame.
[0024] Some examples of the computer-readable method, apparatus and non-transitory medium described above may also include processes, characteristics, means or instructions for receiving a shared data signal during a plurality of downlink subframes during the first transmission opportunity; and receiving the shared data signal during a second transmission opportunity that is subsequent to the first transmission opportunity.
[0025] Some examples of the computer-readable method, apparatus and non-transitory medium described above, receiving the shared data signal, may also include processes, resources, means or instructions for decoding a trigger bit of the common portion of the coded control signal during the second transmission opportunity, the trigger bit indicates a continuous transmission of the shared data signal; and receiving the trigger bit decoded with the common portion of the control signal encoded during a downlink subframe which is a first downlink subframe occurring in the data frame during the second transmission opportunity.
[0026] In some examples of the computer-readable method, apparatus and non-transient medium described above, the device-specific portion of the coded control signal indicates a number of repetitive transmissions of a shared data signal that occurs during frame downlink subframes of data. In some examples of the method, apparatus and non-transient, computer-readable medium described above, the data signal
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12/92 shared comprises a PDSCH.
[0027] Some examples of the computer-readable method, apparatus and non-transitory medium described above, may also include processes, characteristics, means or instructions for transmitting an ACK signal during a data frame uplink subframe based, at least in part, in an indication on the common portion of the coded control signal.
[0028] The foregoing outlined the techniques and technical advantages of the examples in accordance with the disclosure quite broadly, so that the following detailed description can be better understood. Additional techniques and advantages will be described below. The specific design and examples disclosed can be readily used as a basis for modifying or designing other structures to carry out the same objectives as the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed here, both their organization and method of operation, and the associated advantages will be better understood from the description below, when considered in connection with the attached figures. Each of the figures is provided for purposes of illustration and description, and not as a definition of the limits of the claims.
BRIEF DESCRIPTION OF THE DRAWINGS [0029] FIG. 1 illustrates an example of a wireless communication system that supports PDCCH and HARQ to improve MuLTEfire coverage in accordance with aspects of the present disclosure.
[0030] FIG. 2 illustrates an example system
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13/92 for wireless communication that supports PDCCH and HARQ feedback to improve MuLTEfire coverage according to aspects of this disclosure.
[0031] FIG. 3 illustrates an example of a data frame structure that supports PDCCH and HARQ feedback for improving MuLTEfire coverage according to aspects of the present disclosure.
[0032] FIGS. 4A and 4B illustrate examples of a data frame structure that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure.
[0033] FIG. 5 illustrates an example of a data frame structure that supports PDCCH and HARQ feedback for improving MuLTEfire coverage according to aspects of the present disclosure.
[0034] FIG. 6 illustrates an example of a data frame structure that supports PDCCH and HARQ request feedback for improving MuLTEfire coverage according to aspects of the present disclosure.
[0035] FIGS. 7 and 8 illustrate block diagrams of a wireless device that supports PDCCH and HARQ feedback to improve MuLTEfire coverage in accordance with aspects of the present disclosure.
[0036] FIG. 9 illustrates a block diagram of a base station coverage manager that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure.
[0037] FIG. 10 illustrates a block diagram of a system including a wireless device that supports PDCCH and HARQ feedback to improve MuLTEfire coverage
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14/92 in accordance with aspects of this disclosure.
[0038] FIGS. 11 to 12 illustrate block diagrams of a system including a wireless device that supports PDCCH and HARQ feedback to improve MuLTEfire coverage in accordance with aspects of the present disclosure.
[0039] FIG. 13 illustrates a block diagram of an UE coverage manager that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of this disclosure.
[0040] FIG. 14 illustrates a diagram of a system including a device that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure.
[0041] FIGS. 15 to 20 illustrate methods for PDCCH and HARQ feedback to improve MuLTEfire coverage according to aspects of this disclosure.
DETAILED DESCRIPTION [0042] Techniques that support the configuration of the frame structure of the physical downlink control channel (PDCCH) and hybrid automatic repeat request feedback (HARQ) for improving coverage in a shared radio frequency spectrum, are described. In some examples, the shared radio frequency spectrum can be used for LTE (Long Term Evolution) or LTE-A (LTE-Advanced) communications, Licensed Assisted Access (LAA) communications, enhanced LAA communications (eLAA) or communications MuLTEfire. The shared radio frequency spectrum can be used in combination with, or independent of, a dedicated radio frequency spectrum. The frequency spectrum of
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15/92 Dedicated radio may include a radio frequency spectrum licensed to certain users for certain uses. The shared radio frequency spectrum can include a radio frequency spectrum available for Wi-Fi use, a radio frequency spectrum available for use by different radio access technologies (RATs) or a radio frequency spectrum available for use by various mobile network operators (MNOs) in an equally shared or prioritized manner.
[0043] In some examples, techniques for configuring the PDCCH frame structure and HARQ feedback can improve coverage for devices that operate using shared frequency spectrum. Such wireless communications devices may include machine-type communication (MTC) UEs that can operate in the band of the shared radio frequency spectrum. In some cases, UEs may operate on a narrowband IoT (NB-IoT) deployment in a sub-GHz shared radio frequency spectrum band. Wireless communication systems that serve IoT (loT) devices have coverage requirements that are higher compared to existing solutions offered by the shared radio frequency spectrum. In some examples, extensive coverage may include the use of an unshared frequency spectrum band. However, extending the coverage area for loT devices using unshared (ie licensed) radio frequency spectrum can be very costly for sectors with loT deployments.
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16/92 [0044] The techniques described here may include configuring the PDCCH frame structure and HARQ feedback to improve coverage using broadband operation (for example, 10 MHz or 20 MHz band) of the shared radio frequency spectrum . The broadband operation of the shared radio frequency spectrum can be used for MuLTEfire communications systems. In some instances, a MuLTEfire communications system can support UE with an improved coverage mode. In addition, the MuLTEfire communication system can include and support different types of UEs. One type of UE may be a legacy UE that may be lacking in capabilities related to a way of improving coverage. Another type of UE may be a MuLTEfire UE that may have capabilities related to a way of improving coverage.
[0045] In some examples, loT devices deployed in industrial environments may require a significantly larger coverage area than that offered by existing Wi-Fi and MuLTEfire communication systems. For example, a vehicle automatically guided in industrial environments may have a bandwidth requirement of 150 kilobits per second (kbps). To enhance the coverage improvement, a 16dB gain can be provided for channels in a shared frequency spectrum band (ie, Wi-Fi). MuLTEfire communications systems have a signal-to-noise ratio (SNR) of -6dB. To improve device coverage (for example, loT devices) in environments where these devices can be obstructed by objects or located in a
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17/92 cell edge of a base station, MuLTEfire communication systems can enhance a gain (extract 8dB of improvement) from the system (Wi-Fi and MuLTEfire communication system) to satisfy a target SNR value (-14dB).
[0046] The MuLTEfire communications system can use the legacy PDCCH for control signaling. The legacy PDCCH can support an aggregation level of eight. As a result, the SNR requirement associated with this level of aggregation can be -6dB. The legacy PDCCH can also support multiple control channel elements based on multiple OFDM symbols and a frequency spectrum band. For an OFDM symbol, the legacy PDCCH transmission in a 10 MHz band can support 10 control channel elements. Two OFDM symbols for legacy PDCCH transmission in a 10 MHz band can support 27 control channel elements. Three OFDM symbols for legacy PDCCH transmission in a 10 MHz band can support 44 control channel elements.
[0047] For the 20 MHz band, an OFDM symbol can support 21 control channel elements, two OFDM symbols can support 55 control channel elements and three OFDM symbols can support 88 control channel elements. To support coverage enhancement modes for MuLTEfire UEs (for example, ΙοΤ devices), the wireless communication system can satisfy the SNR target value of -14dB reaching an aggregation level of 64. However, a level of 64 aggregation can consume all the resources of the legacy PDCCH. Therefore, techniques are described here that support the configuration of a PDCCH frame structure to improve coverage.
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18/92 which satisfies the SNR target value of -14dB and aggregation level of 64.
[0048] The configuration of the PDCCH frame structure may include adjusting an improved PDCCH to have an improved eMPDCCH waveform. For the existing legacy PDCCH, the PDCCH occupies a subframe and supports two sets of pairs of physical resource blocks. A physical resource block can be a transmission resource unit, including 12 subcarriers in the frequency domain and 1 timeslot (0.5 ms) in the time domain. Each set can include 2, 4 or 8 pairs of physical resource blocks. A pair of physical resource blocks can carry four control channel elements. The legacy PDCCH, therefore, can carry a total of 32 control channel elements per set, which is not enough to satisfy the SNR target value of -14dB and the aggregation level of 64. In some examples, assigning or configuring the size of the PDCCH to extend the size of the two sets so that each set can support 32 pairs of physical resource blocks, the SNR target value and the aggregation level can be realized. As a result, the 32 pairs of physical resource blocks can carry 128 control channel elements. In some examples, 128 control channel elements can support two aggregate level 64 candidates. Since there are two sets, eMPDCCH can support up to four aggregate level 64 candidates.
[0049] A wireless communication device can allocate the four candidates to a common search space (for example, loT devices in
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19/92 MuLTEfire communication) and UE specific search space (ie target for specific legacy UEs). In some instances, a communication device may switch to a cell-specific reference signal (CRS) transmission mode based on the eMPDCCH configuration. By modifying the existing legacy PDCCH for eMPDCCH, geographic coverage for a wireless communication device can be improved. As a result, the wireless communication device can broadcast control signals to other devices (eg, loT UE devices) previously at an edge or outside the geographic coverage area.
[0050] Aspects of disclosure are still illustrated and described with reference to diagrams of gadgets, system diagrams and flowcharts that relate with PDCCH and feedback HARQ for improvement of roof MuLTEfire.[0051] FIG. 1 illustrates An example of a system
100 for wireless communication that supports PDCCH and HARQ request feedback to improve MuLTEfire coverage according to aspects of this disclosure. System 100 includes base stations 105, UEs 115 and a central network 130. In some instances, system 100 can be an LTE (or LTE-Advanced) network or an NR (New Radio) network. For example, system 100 may include an LTE / LTE-A network, a MuLTEFire network, a small network of neutral host cells or the like, operating with overlapping coverage areas. A MuLTEFire network can include access points (APs) and / or base stations 105 communicating over an unlicensed radio frequency spectrum band,
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20/92 for example, without a licensed frequency anchor carrier. For example, the MuLTEFire network can operate without an anchor carrier in the licensed spectrum. System 100 can support PDCCH configuration and HARQ feedback to improve coverage on System 100. In some cases, System 100 can support enhanced broadband communications, ultra-reliable (ie, mission critical) communications, low latency communications and communications with low-cost, low-complexity devices.
[0052] Base stations 105 can communicate wirelessly with UEs 115 through one or more base station antennas. Each base station 105 can provide communication coverage for a respective geographic coverage area 110. The communication links 125 shown on system 100 can include uplink transmissions from an UE 115 to a base station 105, or downlink transmissions from a station base 105 for a UE 115. Control information and data can be multiplexed on an uplink or downlink channel according to various techniques. Control information and data can be multiplexed on a downlink channel, for example, using time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques or hybrid TDM-FDM techniques. In some examples, the control information transmitted during a transmission time interval (TTI) of a downlink channel can be cascaded between different control regions (for example, between a common control region and one or more specific EU control regions).
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21/92 [0053] UEs 115 can be dispersed throughout system 100, and each UE 115 can be stationary or mobile. A UE 115 can also be referred to as a mobile station, a subscriber station, a remote unit, a wireless device, an access terminal (AT), a handset, a user agent, a customer or similar terminology. An UE 115 can also be a cell phone, a wireless modem, a portable device, a personal computer, a tablet, a personal electronic device, a machine-type communication device (MTC), etc. Base stations 105 may also be a MuLTEFire base station that may have limited or non-ideal backhaul links 134 with other base stations 105.
[0054] UEs 115 can be dispersed throughout the system 100, and each UE 115 can be stationary or mobile. A UE 115 can also be referred to as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications 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 customer or some other proper terminology. An UE 115 can also be a cell phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a portable device, a tablet, a laptop, a cordless phone, a personal electronic device, a device
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22/92 laptop, a personal computer, a wireless local loop station (WLL), an Internet of Things (loT) device, an Internet of Everything (loE) device, a machine-type communication device (MTC), a device (appliance), an automobile, or the like.
[0055] Some UEs 115, such as MTC or loT devices, can be low cost or low complexity devices and can provide automated communication between machines, that is, Machine to Machine (M2M) communication. M2M or MTC can refer to data communication technologies that allow devices to communicate with each other or with a base station without human intervention. For example, M2M or MTC can refer to communications from devices that integrate sensors or meters to measure or capture information and relay that information to a central server or application program that can make use of the information or present the information to humans interacting with the program or application.
[0056] Some 115 UEs can be designed to collect information or enable the automated behavior of machines. Examples of applications for MTC devices include smart metering, stock monitoring, water level monitoring, equipment monitoring, health monitoring, wildlife monitoring, meteorology and geological events, fleet management and tracking, remote security sensing, control physical access and transaction-based business loading. As mentioned above, in some cases position information may be provided for
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23/92 an MTC device that can allow the location of an MTC device, which can be beneficial for navigation or device location, for example. In addition, in cases where MTC devices use the shared radio frequency spectrum, several techniques can support PDCCH configuration and HARQ feedback to improve the coverage of MTC devices using the shared radio frequency spectrum. In some cases, an MTC device can operate using half-duplex (unidirectional) communications at a reduced peak rate. MTC devices can also be configured to enter a power-saving deep sleep mode when they are not involved in active communications. In some cases, MTC or loT devices can be designed to support mission-critical functions and the System 100 can be configured to provide ultra-reliable communications for those functions.
[0057] In some cases, a UE 115 may also be able to communicate directly with other UEs (for example, using a point-to-point protocol (P2P) or device to device (D2D)). One or more of a group of UEs 115 using D2D communications can be within the geographical coverage area 110 of a cell. Other UEs 115 in such a group may be outside the geographic coverage area 110 of a cell, or otherwise unable to receive transmissions from a base station 105. In some cases, groups of UEs 115 communicating via D2D communications may use a one-to-many system (1: M), in which each UE 115 transmits to all other UE 115 in the group. In some cases, a 105 base station
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24/92 makes it easy to schedule resources for D2D communications. In other cases, D2D communications are carried out independently of a base station 105.
[0058] The base stations 105 can communicate with the core network 130 and with each other. For example, base stations 105 can interact with core network 130 via backhaul links 132 (e.g., SI, etc.). The base stations 105 can communicate with each other over the backhaul links 134 (for example, X2, etc.) either directly or indirectly (for example, through the core network 130). Base stations 105 can perform radio configuration and scheduling for communication with UEs 115, or they can operate under the control of a base station controller (not shown). In some examples, base stations 105 can be macro cells, small cells, hot spots or the like. Base stations 105 can also be referred to as eNóBs (eNBs) 105.
[0059] A base station 105 can be connected by an SI interface to the core network 130. The core network can be an evolved packet core (EPC), which can include at least one MME, at least one S-GW and at least a PGW. The mobile management entity (MME) can be the control node that processes the signaling between the UE 115 and the EPC. All user IP packets can be transferred via S-GW, which can be connected to P-GW. P-GW can provide allocation of IP addresses, as well as other functions. The P-GW can be connected to the IP services of the network operators. Operator IP services may include the Internet, the Intranet, an IP Multimedia Subsystem (IMS) and a Packet-Switched Flow Service
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25/92 (PS) (PSS).
[0060] Core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity and other access, routing or mobility functions. At least some of the network devices may include subcomponents, such as an access network entity, which can be an example of an access node controller (ANC). Each access network entity can communicate with a number of UEs 115 through a number of other access network transmission entities, each of which can be an example of an intelligent radio head or a transmit / receive point (TRP). In some configurations, various functions of each access network entity or base station 105 can be distributed across multiple network devices (for example, radio head and access network controllers) or consolidated into a single network device (for example, a base station 105).
[0061] System 100 can operate in an ultra high frequency frequency (UHF) region using frequency bands from 700 MHz to 2600 MHz (2.6 GHz), although in some cases wireless local area network networks (WLAN) can use frequencies as high as 4 GHz. This region can also be known as the decimetric band, since the wavelengths vary from approximately one centimeter to one meter in length. UHF waves can propagate mainly through the line of sight, and can be blocked by buildings and environmental features. However, waves can
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26/92 penetrate the walls enough to provide service to the UEs 115 located inside the home. UHF wave transmission is characterized by smaller antennas and shorter range (for example, less than 100 km) compared to transmission using the lower frequencies (and longer waves) of the high frequency (HF) or very high frequency portion (VHF) of the spectrum. In some cases, system 100 may also use extremely high frequency (EHF) portions of the spectrum (for example, from 30 GHz to 300 GHz). This region can also be known as the millimeter band, since the wavelengths vary from approximately one millimeter to one centimeter in length. Thus, EHF antennas can be even smaller and more widely spaced than UHF antennas. In some cases, this may facilitate the use of antenna arrays within an UE 115 (for example, for directional beam formation). However, EHF transmissions may still be subject to greater atmospheric attenuation and less range than UHF transmissions.
[0062] System 100 can support multiple cell or carrier operation, a feature that can be referred to as carrier aggregation (CA) or multiple carrier operation. A carrier can also be referred to as a component carrier (CG), a layer, a channel, etc. The terms carrier, component carrier, cell and channel can be used interchangeably in this document. A UE 115 can be configured with multiple downlink CCs and one or more uplink CCs for carrier aggregation. Carrier aggregation can be used with carriers of FDD components
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27/92 and TDD. In some cases, system 100 may use licensed and shared or unlicensed radio frequency spectrum bands. For example, system 100 may employ LTE-LAA (LTE License Assisted Access) or LTE U (LTE Unlicensed) radio access technology or NR technology in an unlicensed band such as Industrial 5Ghz, Scientific, and Medical (ISM) . In some instances, system 100 may employ MuLTEfire communications operating independently using a shared radio frequency spectrum. When operating in unlicensed radio frequency spectrum bands, wireless devices, such as base stations 105 and UEs 115, can employ listening before speaking (LBT) procedures to ensure that the channel is clean before transmitting data. In some cases, operations on unlicensed bands may be based on a carrier aggregation (CA) configuration in conjunction with component carriers (CCs) operating on a licensed band. Operations on the unlicensed spectrum may include downlink transmissions, uplink transmissions or both. Duplexing in unlicensed spectrum can be based on frequency division duplexing (FDD), time division duplexing (TDD) or a combination of both.
[0063] In some cases, system 100 may be a packet-based network that operates according to a layered protocol stack. At the user level, carrier communications or the Packet Data Convergence Protocol (PDCP) layer can be IP based. A Radio Link Control (RLC) layer can, in some cases, perform segmentation and reassembly of
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28/92 packets to communicate through logical channels. A Medium Access Control (MAC) layer can perform priority handling and multiplexing of logical channels in transport channels. The MAC layer can also use the hybrid ARQ (HARQ) to provide relay on the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer can provide for the establishment, configuration and maintenance of an RRC connection between a UE 115 and a network device, network device or core network 130 supporting carriers of radio for user plan data. In the Physical layer (PHY), transport channels can be mapped to physical channels.
[0064] Time intervals in LTE or NR can be expressed in multiples of a basic time unit (which can be a sampling period of T _s = 1 / 30,720,000 seconds). Time resources can be organized according to 10 m length radio frames (Tf = 307200T _s ), which can be identified by a number of system frames (SFN) ranging from 0 to 1023. Each frame can include ten subframes of Ims numbered from 0 to 9. A subframe can be further divided into two 0.5ms slots, each containing 6 or 7 modulation symbol periods (depending on the length of the cyclic prefix prefixed to each symbol). Excluding the cyclic prefix, each symbol contains 2048 sample periods. In some cases, the subframe may be the smallest scheduling unit, also known as TTI. In other cases, a TTI can be shorter than a subframe or can be selected dynamically (for example, in short bursts of TTI or in
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29/92 carriers of selected components using short TTIs). A resource element can consist of a symbol period and a subcarrier (for example, a frequency range of 15 KHz). A resource block can contain 12 consecutive subcarriers in the frequency domain and, for a normal cyclic prefix in each OFDM symbol, 7 consecutive OFDM symbols in the time domain (1 slot) or 84 resource elements. The number of bits carried by each resource element can depend on the modulation scheme (the configuration of symbols that can be selected during each symbol period). Thus, the more blocks of resources a UE receives and the larger the modulation scheme, the higher the data rate.
[0065] System 100 can support operation in multiple cells or carriers, a feature that can be referred to as carrier aggregation (CA) or multiple carrier operation. A carrier can also be referred to as a component carrier (CC), a layer, a channel, etc. The terms carrier, component carrier, cell and channel can be used interchangeably in this document. A UE 115 can be configured with multiple downlink CCs and one or more uplink CCs for carrier aggregation. Carrier aggregation can be used with carriers of FDD and TDD components.
[0066] In some cases, system 100 may use carriers of improved components (eCCs). An eCC can be characterized by one or more characteristics, including: higher bandwidth, shorter symbol duration, shorter transmission time interval (TTIs) and
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30/92 modified control channel configuration. In some cases, an eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (for example, when multiple service cells have a non-ideal or suboptimal backhaul channel link). An eCC can also be configured for use on unlicensed spectrum or shared spectrum (where more than one operator is allowed to use the spectrum). An eCC characterized by wide bandwidth can include one or more segments that can be used by UEs 115 that are not able to monitor all bandwidth or prefer to use limited bandwidth (for example, to save energy). In some cases, an eCC may use a different symbol duration than other CCs, which may include using a reduced symbol duration compared to the symbol durations of the other CCs. A shorter symbol life can be associated with increased sub carrier spacing. A TTI in an eCC can consist of one or more symbols. In some cases, the duration of the TTI (that is, the number of symbols in a TTI) can be variable. In some cases, an eCC may use a different symbol duration than other CCs, which may include using a reduced symbol duration compared to the symbol durations of the other CCs. A shorter symbol life is associated with increased sub carrier spacing. A device, such as a UE 115 or base station 105, using eCCs can transmit broadband signals (for example, 20, 40, 60, 80 Mhz, etc.) with reduced symbol durations (for example, 16.67 microseconds ).
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A TTI at eCC can consist in one or several symbols. In some cases, the duration of TTI (or be, the number of symbols in one TTI) can be variable. [0067] In some cases, the system 100 can
use licensed and unlicensed radio frequency spectrum bands. For example, system 100 may employ LTE-LAA (LTE License Assisted Access) or LTE U (LTE Unlicensed) radio access technology or NR technology in an unlicensed band such as Industrial 5Ghz, Scientific, and Medical (ISM) . When operating in unlicensed radio frequency spectrum bands, wireless devices, such as base stations 105 and UEs 115, can employ listening before speaking (LBT) procedures to ensure that the channel is clean before transmitting data. In some cases, operations on unlicensed bands may be based on a carrier aggregation (CA) configuration in conjunction with component carriers (CCs) operating on a licensed band. Operations on the unlicensed spectrum may include downlink transmissions, uplink transmissions or both. Duplexing in unlicensed spectrum can be based on frequency division duplexing (FDD), time division duplexing (TDD) or a combination of both.
[0068] FIG. 2 illustrates an example of a wireless communication system 200 that supports PDCCH and HARQ feedback for MuLTEfire. System 200 can include a base station 105-a, an UE 115-a and an UE 115-b, which can be examples of a base station 105 and an UE 115 as described with reference to FIG. 1. In some cases, the UE 115-a may
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32/92 can be a common EU type and UE 115-b can be a specific EU type. Alternatively, UE 115-a can be of a specific type of UE and UE 115-b can be a common type of UE.
[0069] The base station 105-a can encode a control signal that includes a common portion and a specific portion of the device. The common portion may indicate a data frame structure for UE 115-a and UE 115b. The specific portion of the control signal can indicate uplink leases and downlink leases during the data frame. Base station 105-a can identify a downlink subframe, which can be a first downlink subframe that occurs in the data frame, to encode the common portion and the specific portion.
[0070] In some cases, base station 105-a can transmit the encoded control signal during a first transmission opportunity to UE 115-a and UE 115-b. Base station 105-a can transmit the common portion and the specific portion of the coded control signal during the selected downlink subframe. In some examples, base station 105-a may indicate a number of repetitive transmissions of a shared data signal that occurs during downlink or uplink subframes of the data frame in the specific portion. Base station 105-a can also indicate an uplink subframe of the data frame during which the UE 115-a or UE 115-b can transmit a confirmation / non-confirmation signal (ACK / NACK).
[0071] In some examples, base station 105-a can transmit a shared data signal during a
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33/92 plurality of downlink subframes during a first transmission opportunity. Base station 105-a can determine transmission of the shared data signal during a second transmission opportunity. In some cases, the second transmission opportunity may be subsequent to the first transmission opportunity. In one case, the shared data signal can include a PDSCH. The PDSCH can be used to transmit user data. In some cases, if the UE 115-a or UE 115-b receives the PDSCH data without error, the UE 115-a or UE 115-b may return an ACK / NACK on the uplink transmission. In other cases, the shared data signal may include a PUSCH. The UE 115-a or the UE 115-b can transmit user data to the base station 105-a via PUSCH. The PUSCH can include uplink control information including channel quality information (CQI), scheduling requests and ACK / NACK responses for downlink control data signals.
[0072] In some examples, base station 105-a may receive a data signal shared over a plurality of uplink subframes during the first transmission opportunity of UE 115-a or UE 115-b. Base station 105-a can continue to receive the shared data signal during a second transmission opportunity which may be subsequent to the first transmission opportunity. In the case of continuous transmission of the shared data signal at a subsequent transmission opportunity, base station 105-a may associate with a trigger bit indicating a continuous transmission of the shared data signal to the
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UE 115-a or UE 115-b. The base station 105-a can also be associated with a trigger bit to indicate a continuous reception of a shared data signal. The trigger bit can be encoded in a common portion of the control signal. Base station 105-a can transmit the trigger bit in the common portion of the control signal during a downlink subframe which can be a first downlink subframe that occurs in the data frame during the subsequent transmission opportunity.
[0073] Base station 105-a can determine a number of downlink subframes or uplink subframes of the data frame based on the duration of a transmission opportunity. For example, base station 105-a can determine the number of downlink subframes or uplink subframes for a data frame based on a subframe configuration parameter. A subframe configuration parameter can include an SNR threshold. Base station 105-a can determine an SNR threshold value (for example, -14dB) and determine an amount of downlink or uplink subframes based on the SNR threshold value.
[0074] In some cases, the base station 105-a may configure a set size of a data frame for a predetermined number of pairs of physical resource blocks based on an aggregation level. In some cases, base station 105-a can configure a PDCCH frame structure by adjusting an ePDCCH to have an enhanced eMPDCCH waveform. For the existing PDCCH frame structure, the PDCCH can occupy a subframe and support two sets of resource block pairs
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35/92 physicists. Each set can include 2, 4 or 8 pairs of physical resource blocks. A pair of physical resource blocks can carry four control channel elements. The existing PDCCH can therefore carry a total of 16 control channel elements per set, which may not satisfy a target SNR value, for example, -14dB and aggregation level of 64.
[0075] In some examples, by configuring the size of the PDCCH to extend the size of the two sets so that each set can support 32 pairs of physical resource blocks, a target SNR value and aggregation level can be achieved. As a result, the 32 pairs of physical resource blocks can carry 128 control channel elements. In some examples, 128 control channel elements can support two aggregate level 64 candidates. Since there are two sets, eMPDCCH can support up to four aggregate level 64 candidates. Base station 105-a can use the configured PDCCH ( i.e., eMPDCCH) to improve coverage of UE 115-a and UE 115-b.
[0076] UE 115-a and UE 115-b can receive the control signal encoded in a data frame from base station 105-a, via communication links 290. For example, UE 115-a can receive a data frame including a control signal encoded during transmission opportunity 240. UE 115-a can receive a first data frame including a first control signal encoded during transmission opportunity 205 and a second data frame including a second coded control signal during an opportunity to
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36/92 transmission 235. After receiving the encoded control signal, UE 115-a and UE 115-b can decode the control signal to determine a data frame structure. UE 115-a or UE 115-b can identify that the coded control signal is received during a downlink subframe. The downlink subframe can be a first downlink subframe that occurs in a data frame associated with the coded control signal. UE 115-a or UE 115-b can decode the control signal encoded in the first downlink subframe that occurs in the data frame.
[0077] UE 115-a can be a specific type of UE and UE 115-b can be a common type of UE. In some examples, UE 115-a may decode a common portion of the control signal encoded based on UE 115-a being a common type of UE (for example, legacy UE). For example, UE 115-a can decode a PDCCH of the common portion into a first subframe of a data frame. The decoded PDCCH of the common portion may indicate a data frame structure for UE 115-a. The UE 115-b can alternatively decode a common portion and a specific portion of the control signal device based on the UE 115-b being a specific type of UE (for example, loT device on a MuLTEFire network). In some cases, UEs in a coverage enhancement mode (CE) can decode a common improved machine-type PDCCH (CeMPDCCH) from the common portion to extract common signaling for a data frame frame structure. As a result, the UE 115-b can learn about the data frame structure and uplink leases and downlink leases during the
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37/92 data frame based on decoding.
[0078] In some examples, the UE 115-a may receive a data frame during a 205 transmission opportunity. The data frame received at the UE 115-a may include a subframe 0 210, a subframe 1 215 and a portion of repetition of downlink subframe 220. In some cases, subframe 0 210 may be a common portion of the frame. UE 115-a can decode subframe 0 210 which can be a downlink subframe which is a first downlink subframe occurring in the data frame for the transmission opportunity 205. Subframe 0 210 can include a PDCCH and a CeMPDCCH. CeMPDCCH can indicate a data frame structure for UE 115-a. The structure of the data frame can indicate to the UE 115-a number of sub-frames of downlink or uplink, special frames, etc. The PDCCH can support efficient data transmission in system 200. In some cases, the PDCCH can carry a data control information (DCI) message. The DCI message can include resource allocations and other control information for the UE 115-a. For example, the DCI message may include a bitmap indicating groups of resource blocks that are allocated for UE 115-a. A resource block group can include a set of physical resource blocks. The physical resource blocks can indicate to the UE 115-a number of subcarriers during a predetermined period of time for transmission or reception.
[0079] Subframe 1 215 may be a subframe of the specific portion of the device. UE 115-a can decode sub-frame 1 215 based on the capabilities of the
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UE 115-a (for example, if UE 115-a is of a specific type of UE). The subframe 1 215 can include a PDCCH and an eMPDCCH. In some examples, subframe 1 215 may be a subsequent downlink subframe which is a second downlink subframe that occurs in the data frame for the transmission opportunity 205. The PDCCH of subframe 1 215 can also support efficient data transmission in the system 200. The PDCCH can carry a DCI message that includes resource allocations and other control information to the UE 115-a. The eMPDCCH of sub-frame 1 215 may include information indicating uplink leases and downlink leases for UE 115-a.
[0080] The UE 115-a can receive a shared data signal during a plurality of downlink subframes during the first transmission opportunity. In some examples, the shared data signal may be received at the downlink subframe repeat portion 220. The downlink subframe repeat portion 220 may include a number of repetitive transmissions of a shared data signal that occurs during downlink subframes. . For example, the repeating portion of downlink subframe 220 may include two subframes carrying a PDSCH.
[0081] In some instances, base station 105 may determine to continue transmitting the shared data signal during transmission opportunity 235. In some cases, UE 115-a may determine that the shared data signal should continue to be received during a subsequent transmission opportunity. For example, UE 115-a can determine that the shared data signal
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39/92 must continue to be received during transmission opportunity 235. The UE 115-a may continue to receive the shared data signal during transmission opportunity 235. The UE 115-a may receive a second data frame during the transmission opportunity 235. In some examples, transmission opportunity 205 may have a different duration than transmission opportunity 235. Alternatively, transmission opportunity 205 and transmission opportunity 235 may have the same duration.
[0082] The second data frame may include a subframe 0 240 and a repeating portion of downlink subframe 220-a. Subframe 0 240 can include a PDCCH and CeMPDCCH. Similar to subframe 0 210, the PDCCH can carry a DCI message that includes resource allocations and other control information to the UE 115-a. CeMPDCCH of subframe 0 240 can indicate uplink leases and downlink leases for UE 115-a.
[0083] UE 115-a can decode a trigger bit 245 in CeMPDCCH of subframe 0 240. Trigger bit 245 can indicate to UE 115-a that a continuous transmission of the shared data signal must occur. As a result, UE 115-a can receive trigger bit 245 with the common portion (i.e., CeMPDCCH) of the control signal during the downlink subframe (i.e., subframe 0 240). For example, UE 115-b may receive downlink subframe repeat portion 220-a based on decoding of trigger bit 245 from subframe 0 240. The downlink subframe repeat portion 220-a may include one or more subframes carrying PDSCH.
[0084] The UE 115-b can receive a data frame
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40/92 during a transmission opportunity 240. The data frame of the transmission opportunity 240 may include a subframe 0 245, a subframe 1,250, a repeating portion of downlink subframe 255, a special subframe 260, and a subframe of uplink 265. UE 115-b can decode subframe 0 245 which can be a downlink subframe which is a first downlink subframe that occurs in the data frame for transmission opportunity 240. Subframe 0 245 can include a PDCCH and a CeMPDCCH. The PDCCH can support efficient data transmission on system 200.
[0085] In some cases, the PDCCH may carry a DCI message. The DCI message can include resource allocations and other control information for the UE 115b. For example, the DCI message may include a bitmap indicating groups of resource blocks that are allocated in UE 115-b. A resource block group can include a set of physical resource blocks. The physical resource blocks can indicate to the UE 115-b a number of subcarriers during a predetermined period of time for transmission or reception. Alternatively, CeMPDCCH can indicate a data frame structure for UE 115-b. The structure of the data frame can indicate to the UE 115-b a number of downlink or uplink subframes, special frames, etc.
[0086] Subframe 1 250 can be a subframe of the specific portion of the device. UE 115-b can decode subframe 1 250 based on the capabilities of UE 115-b (for example, if UE 115-b is a specific type of UE). In some cases, the UE 115-b (for
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41/92 example, UE Legacy) can decode a PDCCH into SF 1 250. Base station 105-a can transmit uplink and downlink leases (ie, legacy lease for legacy PDSCH resource). In some cases, the concessions may be located in different physical resource blocks than the subsequent eMPDCCH in the subframe (that is, SF 1 250). Following subframes of the downlink subframe repeat portion (DL SF Repeat) 255, the PDCCH for the legacy UE can multiplex the previous subframes. For example, a first set of OFDM symbols (for example, OFDM symbols 1-3) for PDCCH and a second set of OFDM symbols (for example, OFDM symbols 4-14) for PDCCH. As a result, the PDSCH scheduled for CE mode and legacy UE mode are placed in different physical resource blocks.
[0087] In some cases, UE 115-b may be a common type UE and may not be able to receive or decode subframe 1 250. Subframe 1 215 may include a PDCCH and eMPDCCH. Subframe 1 215 may, in some instances, be a subsequent downlink subframe which is a second downlink subframe that occurs in the data frame for the transmission opportunity 240. The PDCCH of subframe 1 250 can also support efficient data transmission in the system 200. The PDCCH can carry a DCI message that includes resource allocations and other control information to the UE 115-a. The eMPDCCH of subframe 1 250 may include information indicating uplink leases and downlink leases for UE 115-a.
[0088] The UE 115-a can receive a data signal
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42/92 shared over a plurality of downlink subframes during transmission opportunity 240. In some instances, the shared data signal may be received at the downlink subframe repeat portion 255. The downlink subframe repeat portion 255 may include a number of repetitive transmissions of a shared data signal that occurs during downlink subframes. For example, the repeating portion of downlink subframe 255 may include two subframes carrying a PDSCH.
[0089] The special subframe 260 can include three fields. A first field can be a downlink pilot time slot, a second field can be a guard period and a third field can be an uplink pilot time slot. In some cases, one or more fields of the special subframe 260 may be configurable in length. Special subframe 260 may have a length size threshold. For example, special subframe 260 can have a length size threshold of 1 millisecond (ms). In addition, the uplink subframes 265 of the data frame of the transmission opportunity 240 may include one or more uplink subframes for uplink transmissions. UE 115-b can transmit an ACK signal during at least one of the uplink 265 subframes. In some cases, UE 115-b can transmit an ACK signal during at least one of the uplink 265 subframes based on an indication in CeMPDCCH subframe 0 245.
[0090] UE 115-a or UE 115-b can also transmit a number of repetitive PUSCH transmissions during uplink subframes of the data frame with
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43/92 base on the specific device portion (for example, eMPDCCH) of the control signal. In some examples, UE 115-a or UE 115-b can schedule system information blocks and indicate a number of repetitions for the system information blocks scheduled.
[0091] FIG. 3 illustrates an example of a data frame structure 300 that supports PDCCH and HARQ feedback for improving MuLTEfire coverage according to aspects of the present disclosure. The data frame structure 300 can be a data frame for transmission or reception during a transmission opportunity 305. The data frame structure 300 can also be associated with a control signal. In some examples, the data frame structure 300 may include a number of downlink subframe bursts and uplink subframe bursts.
[0092] The data frame structure 300 may include a subframe 0 310, repeating portion of downlink subframe 315, a special subframe 320, an uplink subframe 325. Subframe 0 310 in some cases may include a common portion and a specific portion of the device. The common portion can indicate a data frame structure for a UE (for example, the UE 115). In addition, the specific portion of the device may indicate uplink leases and downlink leases during the 305 transmission opportunity. In some cases, subframe 0 310 can be a downlink subframe which is a first downlink subframe that occurs in the frame structure data frame 300. The data frame structure 300 can also be configurable via CeMPDCCH.
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44/92 [0093] The repeating portion of downlink subframe 315 may include a shared data signal. For example, the shared data signal can be a PDSCH. The special subframe 320 can include three fields. A first field can be a downlink pilot time slot, a second field can be a guard period and a third field can be an uplink pilot time slot. In some cases, one or more fields of the special subframe 320 may be configurable in length. The special subframe 320 may have a length size threshold. For example, the special subframe 320 may have a length size threshold of 1 ms. Uplink subframes 325 may include a number of subframes for uplink transmission. In some cases, uplink subframes 325 may include a repetitive transmission of a shared data signal. For example, uplink subframes 325 can each carry a PUSCH.
[0094] In some examples, the data frame structure 300 may be configurable by a base station (e.g., base station 105). The data frame structure 300 can be configurable to support PDCCH and HARQ feedback to improve MuLTEfire coverage. The data frame structure 300 can be configurable based on one or more configuration parameters. For example, a configuration parameter can include, but is not limited to, an initial subframe, a number of N _D downlink subframes, a number of N _rj uplink subframes and a duration of a transmission opportunity. In one case, the data frame structure 300 can be configurable based on the duration of the opportunity to
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45/92 transmission 305. For example, the transmission opportunity 305 can be 8ms in duration and therefore the subframes of the data frame structure 300 can be configured based on the duration of 8ms. Alternatively, the 305 transmission opportunity may be 10 ms in length; therefore, data frame structure 300 can be configured based on the 10 ms duration.
[0095] FIGS. 4A and 4B illustrate an example of a data frame structure that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. Data frame structure 400-a of FIG. 4A can be a data frame for transmission or reception during a 405 transmission opportunity. The data frame structure 400-a can also be associated with a control signal. In some examples, the data frame structure 400-a may include a number of downlink subframe bursts and uplink subframe bursts. The structure of the 400-a data frame can be a repetition of intratransmission opportunity. In some cases, data frame structure 400-a may include a subframe 0 410, a repeat of downlink subframe 415, a special subframe 420, and uplink subframes 425.
[0096] Subframe 0 410 may include a PDCCH, a CeMPDCCH and an eMPDCCH. The PDCCH can support efficient data transmission. In some cases, the PDCCH may carry a DCI message. The DCI message can include resource allocations and other control information for UEs. For example, the DCI message may include a bitmap indicating groups of resource blocks that are
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46/92 allocated to an UE. A resource block group can include a set of physical resource blocks. Physical resource blocks can indicate to a UE a number of subcarriers during a predetermined period of time for transmission or reception. Alternatively, CeMPDCCH can indicate a data frame structure. EMPDCCH may also indicate uplink leases and downlink leases during the 405 transmission opportunity of the 400-a data frame structure. As a result, a UE may be aware of a number of downlink subframes and uplink subframes in the data frame of the 400-a data frame structure. In addition, the indication in eMPDCCH can identify an initial location of a particular subframe in the data frame. For example, a UE can identify an initial location of 425 uplink subframes based on the indication provided in eMPDCCH.
[0097] Downlink subframe repetition 415 may include a number of shared data signal repetitions. For example, the repetition of downlink subframe 415 of data frame structure 400-a can include four subframes, including PDSCH. The special subframe 420 can include three fields. A first field can be a downlink pilot time slot, a second field can be a guard period and a third field can be an uplink pilot time slot. In some cases, one or more fields of the special subframe 420 may be configurable in length. The special subframe 420 may have a length size threshold. For example, special subframe 420 may have a size threshold of
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47/92 length of 1 ms. [0098] Additionally, uplink subframes 425 of the data frame associated with transmission opportunity 405 may include one or more uplink subframes for uplink transmissions. In some cases, an ACK signal can be transmitted during at least one uplink subframe of uplink subframes 425. In some cases, the ACK signal can be transmitted for at least one uplink subframe of uplink subframes 425 based on an indication carried in CeMPDCCH during subframe 0 410. Uplink subframes 425 may also be associated with a transmission of a number of repetitive PUSCH transmissions during uplink 425 subframes of the data frame based on the information carried (for example, information from control) in eMPDCCH.
[0099] Data frame structure 400-b of FIG. 4B can be a data frame for transmission or reception during two transmission opportunities (i.e., transmission opportunity 445 and transmission opportunity 475). The structure of data frames 400-b can also be associated with a control signal. In some examples, the data frame structure 400-b may include a number of downlink subframe bursts and uplink subframe bursts. The structure of 400-b data frames can be associated with an opportunity repeat schedule between transmissions.
[0100] The data frame structure 400-b may include a subframe 0 450, a subframe 1 455, a repeating portion of downlink subframe 460, a subframe
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48/92 special 465 and uplink subframes 470. In some cases, ο subframe 0 450 can be a common portion of a data frame. Subframe 0 450 can be a downlink subframe which can be a first downlink subframe that occurs in a data frame for transmission opportunity 445. Subframe 0 450 can include a PDCCH and CeMPDCCH. The PDCCH can support efficient data transmission.
[0101] In some cases, the PDCCH may carry a DCI message. The DCI message can include resource assignments and other control information. For example, the DCI message can include a bitmap indicating groups of resource blocks that are allocated to a UE. A resource block group can include a set of physical resource blocks. Physical resource blocks can indicate to a UE a number of subcarriers for a predetermined period of time for transmission or reception. Alternatively, CeMPDCCH can indicate a data frame structure. The structure of the data frame can indicate a number of downlink or uplinks subframes, special frames, etc.
[0102] Subframe 1 455 can be a subframe of the specific portion of the device. Subframe 1 455 can be decoded based on the capabilities of the UE (for example, if a UE is of a specific type of UE). In some cases, subframe 1 455 may include a PDCCH and an eMPDCCH. In some examples, subframe 1 455 may be a subsequent downlink subframe which may be a second downlink subframe that occurs in a data frame for the 445 transmission opportunity. In some examples, subframe 1 455 may be any subframe of downlink
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49/92 in a data frame for transmission opportunity 445. The PDCCH of subframe 1 455 can also support efficient data transmission. The eMPDCCH of subframe 1 455 can include information indicating uplink leases and downlink leases.
[0103] The downlink repeating portion 460 may carry a shared data signal during a plurality of downlink subframes during transmission opportunity 445. The downlink repeating portion of downlink 460 may include a number of repetitive data transmissions. a shared data signal that occurs during downlink subframes. For example, the repeating portion of downlink subframe 460 may include two subframes carrying a PDSCH. In some cases, the data frame structure 400-b may include information indicating that the shared data signal must be continued to be received during a subsequent transmission opportunity (i.e., transmission opportunity 475). In some examples, the information may be encoded in subframe 0 450 or subframe 1 455.
[0104] The special subframe 465 can include three fields. A first field can be a downlink pilot time slot, a second field can be a guard period and a third field can be an uplink pilot time slot. In some cases, one or more fields of the special subframe 465 may be configurable in length. The special subframe 4 65 can have a length size threshold. For example, special subframe 465 may have a length size threshold of 1 ms.
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50/92 [0105] In addition, the uplink subframes 470 of the broadcast opportunity data frame 445 may include one or more uplink subframes for uplink transmissions. In some cases, an ACK / NAK signal can be transmitted over at least one uplink subframe of uplink subframes 470. In some cases, the ACK / NAK signal can be transmitted during at least one uplink subframe of uplink 470 subframes with based on an indication carried in CeMPDCCH in subframe 0 450. Uplink subframes 470 can also be associated with a transmission of a number of repetitive PUSCH transmissions during eMPDCCH uplink subframes based on the control signal data frame.
[0106] The structure of data frames 400-b can be associated with a schedule of repetition of transmission opportunities. As a result, a second data frame can be transmitted by a base station and received by a UE. The second data frame may be associated with a transmission opportunity 475. The second data frame may include a subframe 0 480 and a repeating portion of downlink subframe 460-a. In some examples, transmission opportunity 445 may have a different duration than transmission opportunity 445. Alternatively, transmission opportunity 445 and transmission opportunity 475 may have the same duration.
[0107] Subframe 0 480 can include a PDCCH and CeMPDCCH. Similar to subframe 0 450, the PDCCH can carry a DCI message that includes resource assignments and other control information. CeMPDCCH of
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51/92 sub-frame 0 480 may indicate uplink leases and downlink leases. Additionally or alternatively, subframe 0 480 may include a trigger bit 480 in
CeMPDCCH. Trigger bit 480 may indicate that a continuous transmission of a shared data signal must occur. For example, the continuous transmission of a shared data signal may include the PDSCH transmission associated with the repeat portion of the downlink subframe 460. As a result, the repeat portion of the downlink subframe 460-a may include the continuous transmission of the shared data signal ( i.e., PDSCH).
[0108] FIG. 5 illustrates an example of a data frame structure 500 that supports PDCCH and HARQ feedback for improving MuLTEfire coverage according to aspects of the present disclosure. In some examples, the data frame structure 500 may be associated with scheduling HARQ for heavy downlink traffic. The data frame structure 500 can be associated with a transmission of data frames during a transmission opportunity 505. The data frame can include an eMPDCCH subframe 510, a downlink PDSCH subframe repetition 515 and an uplink subframe 520. The eMPDCCH 510 subframe can indicate uplink leases and downlink leases during the 505 data frame transmission opportunity. In some examples, the eMPDCCH 510 subframe may indicate an uplink subframe of a subsequent data frame to which a UE can transmit ACK / NAK 530 message instructions, based on the ACK / NAK 525 message instructions. ACK / NAK 530 messages can indicate to UEs a
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52/92 location (for example, which subframe in a data frame) to transmit an ACK / NAK message in an uplink subframe.
[0109] The PDSCH downlink subframe repetition can include eight 515 downlink subframes. In some examples, a UE may have a peak downlink rate of 279.3 kbps. To satisfy the target SNR threshold, the data frame can include the eight downlink subframes. Each subframe of the downlink PDSCH subframe repeat 515 can be associated with a PDSCH. In some cases, the number of downlink subframes in the PDSCH subframe repeat of 515 downlink can be configurable based on the eMPDCCH 510 subframe.
[0110] In a subsequent data frame of a 545 transmission opportunity, the ACK / NAK 530 message instructions can be transmitted during the uplink 560 subframe. In some cases, the ACK / NAK 525 message instructions can be transmitted in a subsequent data frame due to processing delays (e.g., 12 ms) associated with a UE. In addition, the subsequent data frame may also include the eMPDCCH subframe 550, the downlink PDSCH subframe repetition 555, or the uplink subframe 560, or any combination thereof.
[0111] FIG. 6 illustrates an example of a data frame structure 600 that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. In some instances, the data frame structure 600 may be associated with the HARQ schedule for heavy uplink traffic. The data frame structure 600 can be
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53/92 associated with a data frame transmission during a 605 transmission opportunity. The data frame can include an eMPDCCH 610 subframe, a 615 subframe and a uplink 620 PUSCH subframe repeat. The eMPDCCH 610 subframe can indicate uplink leases and downlink leases during the 605 data frame transmission opportunity. In some examples, a downlink subframe associated with eMPDCCH 610 subframe may indicate a location of an uplink subframe in a data frame to transmit ACK / NAK message instructions for downlink traffic. For uplink traffic, ACK / NAK can be sent via an asynchronous HARQ. In some cases, the data frame structure 600 may include signaling via a downlink assignment index (DAI) bit to a next receiving DAI bit in an eMPDCCH subframe.
[0112] In some examples, a downlink subframe associated with the eMPDCCH 610 subframe may indicate a data frame uplink subframe to which a UE can transmit an ACK / NAK 625 message instruction. For example, the indication may be encoded in the penultimate subframe of an uplink PUSCH subframe repeat in a subsequent data frame. Subframe 615 can be a special subframe. The special subframe can include two half frames of equal length, with each half frame including a predetermined number of slots (for example, 10 slots or 8 slots, plus three special fields). The three special fields can include a downlink pilot time slot, a guard period and an uplink pilot time slot. Each slot can be 0.5 ms
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54/92 in length. In some examples, the length of the three fields in the special frame may be based on the uplink / downlink configuration selected by a base station. However, the total length of the three fields is 1 ms.
[0113] The repetition of uplink PUSCH subframe 620 may include eight uplink subframes. In some examples, a UE may have a peak rate of interlace uplink of 25.6 kbps / interlace. To satisfy the target SNR threshold, the data frame can include the eight uplink subframes. Each subframe of the uplink 620 PUSCH subframe repeat can be associated with a PUSCH. In some cases, the number of uplink subframes in the repetition of uplink PUSCH subframe 620 may be configurable based on the eMPDCCH 610 subframe.
[0114] In a subsequent data frame of a 645 transmission opportunity, the ACK / NAK 630 message can be transmitted in the eMPDCCH 650 subframe of the 645 transmission opportunity. In some cases, the ACK / NAK 630 message can be transmitted in a subsequent data frame due to processing delays associated with a UE, for example, in a UL 660 PUSCH SF repeating subframe. In addition, the subsequent data frame may similarly include the eMPDCCH 650 subframe, subframe 655 and the repetition of UL 660 PUSCH SF.
[0115] FIG. 7 illustrates a block diagram 700 of a wireless device 705 that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. The 705 wireless device
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55/92 can be an example of aspects of a base station 105, as described with reference to FIG. 1. Wireless device 705 may include receiver 710, base station coverage manager 715, and transmitter 720. Wireless device 705 may also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0116] The 710 receiver can receive information such as packages, user data or control information associated with various information channels (for example, control channels, data channels and related loT or UE devices, etc.) . The information can be passed on to other components of the device. Receiver 710 can be an example of aspects of transceiver 1035 described with reference to FIG. 10.
[0117] The base station 715 coverage manager can encode a control signal that includes a common portion for receiving devices, the common portion indicating a structure of a data frame, the control signal further including a specific portion of the device for a specific receiving device, the specific portion of the device indicating uplink leases and downlink leases during the data frame for the specific receiving device; assign a downlink subframe that is a first downlink subframe that occurs in the data frame; and transmit the encoded control signal during a first transmission opportunity, in which at least the common portion of the control signal is transmitted during the
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56/92 selected downlink subframe.
[0118] The transmitter 720 can transmit signals generated by other components of the device. In some
examples, the 720 transmitter can be placed with one 710 receiver on a transceiver module. For example, O transmitter 720 can be an example of aspects of transceiver 1035 described with reference to FIG. 10. 0 transmitter 720 can include a single antenna or can
include a set of antennas. The transmitter 720 can transmit coded control signals during subframes within a data frame.
[0119] FIG. 8 illustrates a block diagram 800 of a wireless device 805 that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. The wireless device 805 can be an example of aspects of a wireless device 805 or a base station 105, as described with reference to FIGs. 1 and 7. The wireless device 805 can include the receiver 810, the base station coverage manager 815, and the transmitter 820. The wireless device 805 can also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0120] The 810 receiver can receive information such as packages, user data or control information associated with various information channels (for example, control channels, data channels and related loT or UE devices, etc.) . The information can be passed on to other components of the device. The 810 receiver can be an example of aspects
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57/92 of transceiver 1035 described with reference to FIG. 10.
[0121] The base station coverage manager 815 can be an example of aspects of the base station coverage manager 715 described with reference to FIG. 7. The base station coverage manager 815, coding component 825, subframe selection component 830 and transmission opportunity component 835.
[0122] The encoding component 825 can encode a control signal that includes a common portion for receiving devices, the common portion indicating a structure of a data frame, the control signal further including a specific portion of the device for a device specific receiving device, the specific portion of the device indicating uplink leases and downlink leases during the data frame for the specific receiving device. In some examples, the device-specific portion of the control signal indicates a number of repetitive transmissions of a shared data signal that occurs during downlink subframes or uplink subframes of the data frame. In some examples, the common portion of the control signal identifies an uplink subframe of the data frame during which a receiving device must transmit an acknowledgment signal (ACK). In some instances, the control signal is an improved machine-type downlink physical control channel (eMPDCCH). Additionally or alternatively, the common portion and the specific portion of the device include at least one of a downlink control channel (PDCCH), an enhanced machine-type PDCCH (eMPDCCH) and an eMPDCCH
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58/92 common (CeMPDCCH), or a combination thereof.
[0123] Subframe selection component 830 can assign a downlink subframe which is a first downlink subframe that occurs in the data frame. In some examples, the subframe selection component 830 may determine a number of downlink subframes or uplink subframes of a data frame based on the duration of the first transmission opportunity. Alternatively, the selection component of subframe 830 can determine a number of downlink subframes or uplink subframes of a data frame based on a subframe configuration parameter.
[0124] The transmission opportunity component 835 can transmit an encoded control signal during a first transmission opportunity, in which at least the common portion of the control signal is transmitted during the selected downlink subframe. In some examples, the transmission opportunity component 835 may transmit a shared data signal during a plurality of downlink subframes during a first transmission opportunity. The transmission opportunity component 835 can additionally or alternatively transmit a trigger bit with the common portion of a control signal during a downlink subframe which is the first downlink subframe that occurs in the data frame during the second opportunity streaming. In some examples, the transmission opportunity component 835 may receive a shared data signal during a plurality of uplink subframes during a first opportunity
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59/92 transmission. The shared data signal includes a PDSCH or a PUSCH.
[0125] 0 transmitter 820 can to transmit signals generated by others components of dispose positive. In some examples, the 820 transmitter can to be placed common
810 receiver in a transceiver module. For example, transmitter 820 can be an example of aspects of transceiver 1035 described with reference to FIG. 10. The transmitter 820 can include a single antenna or can include a set of antennas.
[0126] FIG. 9 illustrates a block diagram 900 of a base station coverage manager 915 that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. The base station coverage manager 915 can be an example of aspects of a base station coverage manager 715 or a base station coverage manager 815 described with reference to FIGS. 7 and 8. Base station coverage manager 915 may include encoding component 920, subframe selection component 925, transmission opportunity component 930, signal continuation component 935, trigger component 940, determination component subframe 945, component SNR 950 and modification component of subframe 955. Each of these modules can communicate, directly or indirectly, with each other (for example, through one or more buses).
[0127] The encoding component 920 can encode a control signal that includes a common portion for receiving devices, the common portion indicating a
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60/92 structure of a data frame, the control signal further including a specific portion of the device for a specific receiving device, the specific portion of the device indicating uplink leases and downlink leases during the data frame for the data device specific reception. In some examples, the device-specific portion of the control signal indicates an amount of repetitive transmissions of a shared data signal that occurs during downlink subframes or uplink subframes of the data frame. In some examples, the common portion of the control signal identifies an uplink subframe of the data frame during which a receiving device must transmit an acknowledgment signal (ACK). In some instances, the control signal is an improved machine-type downlink physical control channel (eMPDCCH). Additionally or alternatively, the common portion and the specific portion of the device include at least one of a downlink control channel (PDCCH), an improved machine-type PDCCH (eMPDCCH) and a common eMPDCCH (CeMPDCCH), or a combination of them.
[0128] The subframe selection component 925 assigns a downlink subframe which is a first downlink subframe that occurs in the data frame. In some examples, the selection component of subframe 830 may determine a number of downlink subframes or uplink subframes of a data frame based on the duration of the first transmission opportunity. Alternatively, the subframe selection component 925 can determine a number of downlink subframes or uplink subframes of a data frame based on a
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61/92 subframe configuration parameter.
[0129] The transmission opportunity component 930 can transmit an encoded control signal during a first transmission opportunity, in which at least the common portion of the control signal is transmitted during the selected downlink subframe. In some examples, the transmission opportunity component 835 may transmit a shared data signal during a plurality of downlink subframes during a first transmission opportunity. The transmission opportunity component 835 can additionally or alternatively transmit a trigger bit with the common portion of a control signal during a downlink subframe which is the first downlink subframe that occurs in the data frame during the second opportunity streaming. In some examples, the transmission opportunity component 835 may receive a shared data signal during a plurality of uplink subframes during a first transmission opportunity. The shared data signal includes a PDSCH or a PUSCH.
[0130] The signal continuation component 935 can determine that a shared data signal must be continued to be transmitted during a second transmission opportunity that is subsequent to a first transmission opportunity. In some instances, the signal continuation component 935 may determine that a shared data signal must continue to be received during a second transmission opportunity that is subsequent to a first transmission opportunity.
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62/92 transmission. The trigger component 940 can associate a trigger bit with a common portion of a control signal. In some cases, the trigger bit may indicate a continuous transmission of the shared data signal. In some instances, trigger component 940 may associate a trigger bit with a common portion of a control signal. In some cases, the trigger bit may indicate continuous reception of the shared data signal.
[0131] The subframe determination component 945 can determine a number of downlink subframes or uplink subframes of a data structure based on the duration of a first transmission opportunity. In some examples, determining the number of downlink subframes or uplink subframes of the data frame may be based on a subframe configuration parameter. The SNR 950 component can determine an SNR threshold and determine a number of downlink or uplink subframes based on the SNR threshold.
[0132] The modification component of sub-frame 955 can assign the configuration of a set size of a data frame to a predetermined number of pairs of physical resource blocks based on an aggregation level. In some cases, the predetermined number of pairs of physical resource blocks is 32. In some cases, the aggregation level is 64 or higher.
[0133] FIG. 10 illustrates a block diagram of a system 1000 including a wireless device 1005 that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. The wireless device 1005 can be an example or include the
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63/92 components of the wireless device 705, wireless device 805 or a base station 105 as described above, for example, with reference to FIGS. 1, 7 and 8. The wireless device 1005 may include components for bidirectional voice and data communications, including components for transmitting and receiving communications, including the base station coverage manager 1015, processor 1020, memory 1025, software 1030, transceiver 1035, antenna 1040, network communications manager 1045 and communications manager of base station 1050. These components can be in electronic communication via one or more buses (for example, bus 1010). The wireless device 1005 can communicate wirelessly with one or more UEs 115.
[0134] The base station coverage manager 1015 can be an example of the base station coverage manager 715, the base station coverage manager 815 or a base station coverage manager 915 as described above, for example, with reference to FIGs. 7, 8 and 9. The base station coverage manager 1015 can encode a control signal that includes a common portion for receiving devices, the common portion indicating a data frame structure, the control signal further comprising a portion device-specific for a specific receiving device, the specific portion of the device indicating uplink leases and downlink leases during the data frame for the specific receiving device; assign a downlink subframe that is a first downlink subframe in the data frame; and transmit the signal
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64/92 coded control during a first transmission opportunity, in which at least the common portion of the control signal is transmitted during the selected downlink subframe.
[0135] The 1020 processor may include an intelligent hardware device (for example, a general purpose processor, a digital signal processor (DSP), a central processing unit (CPU), a microcontroller, an application-specific integrated circuit (ASIC), a field programmable gate matrix (FPGA), a programmable logic device, a discrete gate component or logic transistor, a discrete hardware component, or any combination thereof. In some cases, the 1020 processor can be configured to operate a memory array using a memory controller. In other cases, a memory controller can be integrated with the 1020 processor. The 1020 processor can be configured to execute computer-readable instructions stored in memory to perform various functions (for example , functions or tasks that support PDCCH and HARQ feedback to improve MuLTEfire coverage).
[0136] Memory 1025 can include random access memory (RAM) and read-only memory (ROM). The 1025 memory can store computer-readable, computer-executable 1030 software, including instructions that, when executed, cause the processor to perform various functions described here. In some cases, the 1025 memory may contain, among other things, a basic input / output system (BIOS) that can control the basic operation of hardware and / or software, such as interaction with components
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65/92 or peripheral devices.
[0137] Software 1030 may include code to implement aspects of this disclosure, including code to support PDCCH and HARQ feedback to improve MuLTEfire coverage. The 1030 software can be stored in a non-transient, computer-readable medium, such as system memory or other memory. In some cases, the 1030 software may not be directly executable by the processor, but it can cause a computer (for example, when compiled and run) to perform functions described here.
[0138] Transceiver 1035 can communicate bidirectionally, through one or more antennas, wired or wireless, as described above. For example, the 1035 transceiver can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1035 may also include a modem to modulate the packets and supply the modulated packets to the antennas for transmission, and to demodulate the packets received from the antennas. In some cases, the wireless device may include a single 1040 antenna. However, in some cases, the device may have more than one 1040 antenna, which may be capable of simultaneously transmitting or receiving multiple wireless transmissions.
[0139] The 1045 network communications manager can manage communications with the core network (for example, through one or more wired backhaul links). For example, the 1045 network communications manager can manage the transfer of data communications to client devices or loT devices, such as a
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66/92 or more EU 115.
[0140] The base station communications manager 1050 can manage communications with another base station 105 and may include a controller or scheduler to control communications with UEs 115 in cooperation with other base stations 105. For example, the station communications manager base 1050 can coordinate scheduling transmissions to UEs 115 for various interference mitigation techniques such as beam formation or joint transmission. In some examples, the base station communications manager 1050 may provide an X2 interface within LTE (Long Term Evolution) / LTE-A wireless network technology to provide communication between base stations 105.
[0141] FIG. 11 illustrates a block diagram 1100 of a wireless device 1105 that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. Wireless device 1105 can be an example of aspects of an UE 115 as described with reference to FIG. 1. Wireless device 1105 can include receiver 1110, UE 1115 coverage manager and transmitter 1120. Wireless device 1105 can also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0142] The 1110 receiver can receive information such as packages, user data or control information associated with various information channels (for example, control channels, data channels and relacionadosοΤ or EU related information devices, etc.) . At
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67/92 information can be passed to other components of the device. The receiver 1110 can be an example of aspects of transceiver 1435 described with reference to FIG. 14.
[0143] The UE 1115 coverage manager can receive a control signal encoded in a data frame that includes a common portion and a specific device portion during a first transmission opportunity; identifying that the coded control signal is received during a downlink subframe which is a first downlink subframe that occurs in the data quadrate; and decoding the control signal encoded in the first downlink subframe that occurs in the data box.
[0144] The 1120 transmitter can transmit signals generated by other components of the device. In some examples, transmitter 1120 can be placed with a receiver 1110 on a transceiver module. For example, transmitter 1120 can be an example of aspects of transceiver 1435 described with reference to FIG. 14. The 1120 transmitter can include a single antenna or can include a set of antennas. Transmitter 1120 can transmit coded control signals during subframes within a data frame.
[0145] FIG. 12 illustrates a block diagram 1200 of a wireless device 1205 that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. The wireless device 1205 can be an example of aspects of a wireless device 1105 or a UE 115 as described with
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68/92 reference to FIGS. 1 and 11. The wireless device 1205 can include the receiver 1210, the coverage manager of the UE 1215 and the transmitter 1220. The wireless device 1205 can also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0146] Receiver 1210 can receive information such as packets, user data or control information associated with various information channels (for example, control channels, data channels and related loT or UE devices, etc.). The information can be passed on to other components of the device. Receiver 1210 can be an example of aspects of transceiver 1435 described with reference to FIG. 14.
[0147] The UE 1215 coverage manager can be an example of aspects of the UE 1215 coverage manager described with reference to FIG. 11. The UE coverage manager 1215 can also include the receiving component 1225, the subframe determining component 1230 and the decoding component 1235. The receiving component 1225 can receive a control signal encoded in a data frame that includes a common portion and a specific portion of the device during a first transmission opportunity.
[0148] The component for determining subframe 1230 can identify that the coded control signal received during a downlink subframe which is a first downlink subframe that occurs in the data frame. In some instances, the specific portion of the device's
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69/92 control signal indicates a number of repetitive transmissions of a shared data signal that occurs during downlink subframes or uplink subframes of the data frame. In some cases, the shared data signal includes a PDSCH or a PUSCH. The determination component of subframe 1230 can transmit a number of repetitive PUSCH transmissions during uplink subframes of the data frame based on the specific device portion of the control signal. In some cases, the subframe determination component 1230 may receive a number of repetitive PDSCH transmissions during downlink subframes of the data frame based on the specific device portion of the control signal.
[0149] Decoding component 1235 can decode the control signal encoded in the first downlink subframe that occurs in the data frame. In some examples, decoding component 1235 may decode the common portion that indicates the structure of the data frame and decode the specific portion of the device that indicates uplink leases and downlink leases during the data frame.
[0150] The 1220 transmitter can transmit signals generated by other components of the device. In some examples, transmitter 1220 can be placed with a receiver 1210 in a transceiver module. For example, transmitter 1220 can be an example of aspects of transceiver 1435 described with reference to FIG. 14. The 1220 transmitter can include a single antenna or can include a set of antennas. The 1220 transmitter can transmit coded control signals during
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70/92 subframes within a data frame.
[0151] FIG. 13 illustrates a 1300 block diagram of a UE 1315 coverage manager that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. The UE 1315 coverage manager can be an example of aspects of an UE 1315 coverage manager described with reference to FIGs. 11 and 12. The UE coverage manager 1315 may include the receiving component 1320, subframe determination component 1325, decoding component 1330, transmission opportunity component 1335, signal continuation component 1340 and trigger component 1345.
[0152] The receiving component 1320 can receive a control signal encoded in a data frame that includes a common portion and a specific portion of the device during a first transmission opportunity. Subframe determination component 1325 can identify the coded control signal received during a downlink subframe which is a first downlink subframe that occurs in a data frame. In some examples, the device-specific portion of the control signal indicates an amount of repetitive transmissions of a shared data signal that occurs during downlink subframes or uplink subframes of the data frame. In some cases, the shared data signal includes a PDSCH or a PUSCH. Subframe determination component 1325 can transmit a number of repetitive PUSCH transmissions during uplink subframes of the data frame based on the portion
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71/92 device specific to the control signal. In some cases, the subframe determination component 1325 may receive a number of repetitive PDSCH transmissions during downlink subframes of the data frame based on the specific device portion of the control signal.
[0153] The decoding component 1330 can decode the control signal encoded in the first downlink subframe that occurs in the data frame. In some examples, the decoding component 1330 may decode the common portion that indicates the structure of the data frame and decode the specific portion of the device that indicates uplink leases and downlink leases during the data frame.
[0154] The transmission opportunity component 1335 can receive a shared data signal during a plurality of downlink subframes during a first transmission opportunity. In some examples, the transmission opportunity component 1335 can transmit an ACK signal during an uplink subframe of a data frame based on an indication on a common portion of a control signal. The signal continuation component 1340 can determine that the shared data signal must continue to be received during a second transmission opportunity that is subsequent to the first transmission opportunity.
[0155] The trigger component 1345 can decode a trigger bit from the common portion of the control signal during the second transmission opportunity, the trigger bit indicating a continuous transmission of the shared data signal. In some
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72/92 examples, trigger component 1345 can receive the trigger bit decoded with the common portion of the control signal during a downlink subframe which is the first downlink subframe that occurs in a data frame during the second transmission opportunity .
[0156] FIG. 14 illustrates a block diagram of a 1400 system including a wireless device 1405 that supports PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. Wireless device 1405 can be an example or include components of UE 115 as described above, for example, with reference to FIG. 1. Wireless device 1405 may include components for bidirectional voice and data communications including components for transmitting and receiving communications, including UE coverage manager 1415, processor 1420, memory 1425, software 1430, transmitter 1435, the antenna 1440 and the I / O controller 1445. These components can be in electronic communication through one or more buses (for example, bus 1410). Wireless device 1405 can communicate wirelessly with one or more base stations 105.
[0157] UE 1415 coverage manager can be an example of UE 1115 coverage manager, UE 1215 coverage manager or UE 1315 coverage manager, as described above, for example, with reference to FIGs. 11, 12 and 13. The UE coverage manager 1415 can receive a control signal encoded in a data frame that includes a common portion and a device-specific portion during a first transmission opportunity; identify that the control signal
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73/92 encoded is received during a downlink subframe which is a first downlink subframe that occurs in the data frame; and decoding the control signal encoded in the first downlink subframe that occurs in the data frame.
[0158] The 1420 processor may include an intelligent hardware device (for example, a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete port or logic component) transistor, a discrete hardware component or any combination thereof). In some cases, the 1420 processor can be configured to operate a memory array using a memory controller. In other cases, a memory controller can be integrated with the 1420 processor. The 1420 processor can be configured to execute computer-readable instructions stored in memory to perform various functions (for example, functions or tasks that support PDCCH and HARQ feedback for improvement MuLTEfire coverage).
[0159] Memory 1425 can include RAM and ROM. Memory 1425 can store computer-readable, computer-executable software 1430 including instructions that, when executed, cause the processor to perform various functions described here. In some cases, the 1425 memory may contain, among other things, a BIOS that can control the basic operation of hardware and / or software, such as interaction with peripheral components or devices.
[0160] Software 1430 may include code for
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74/92 implement aspects of this disclosure, including code to support PDCCH and HARQ feedback to improve MuLTEfire coverage. The software 1430 may be stored in a non-transitory, computer-readable medium, such as system memory or other memory. In some cases, the 1430 software may not be directly executable by the processor, but it can cause a computer (for example, when compiled and run) to perform functions described here.
[0161] The 1435 transceiver can communicate bidirectionally, through one or more antennas, wired or wireless, as described above. For example, the 1435 transceiver can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The 1435 transceiver may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission and to demodulate packets received from the antennas. In some cases, the wireless device may include a single 1440 antenna. However, in some cases, the device may have more than one 1440 antenna, which may be capable of simultaneously transmitting or receiving multiple wireless transmissions.
[0162] The I / O controller 1445 can manage input and output signals for the 1405 wireless device. The I / O controller 1445 can also manage peripherals not integrated with the 1405 wireless device. In some cases, the I / O controller I / O 1445 can represent a physical connection or port for an external peripheral. In some cases, the 1445 I / O controller may use an operating system such as iOS®, ANDROID®, MS-DOS®,
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75/92
MS-WINDOWS®, ο OS / 2®, UNIX®, ο LINUX® or other known operating system.
[0163] FIG. 15 illustrates a flow chart of a 1500 method for PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. Method 1500 operations can be implemented by a base station 105 or its components as described here. For example, method 1500 operations can be performed by a base station coverage manager, as described with reference to FIGs. 7 to 10. In some examples, a base station 105 can execute a set of codes to control the functional elements of the device to perform the functions described below. In addition or alternatively, the base station 105 can perform aspects of the functions described below using special purpose hardware.
[0164] In block 1505, base station 105 can assign a downlink subframe which is a first downlink subframe that occurs in a data frame. The operations of the block 1505 can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the operations of block 1505 can be performed by a subframe selection component as described with reference to FIGs. 8 and 9.
[0165] In block 1510, base station 105 can transmit a coded control signal during a first transmission opportunity, the coded control signal comprising a common portion for receiving devices, the common portion indicating a data frame structure, the coded control signal
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76/92 further comprising a device specific portion for a specific receiving device, the device specific portion indicating uplink leases and downlink leases during the data frame for the specific receiving device, where at least the common portion of the control is transmitted during the selected downlink subframe. The operations of block 1510 can be carried out according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of block 1510 operations can be performed by a transmission opportunity component as described with reference to FIGs. 8 and 9.
[0166] FIG. 16 illustrates a flowchart of a 1600 method for PDCCH and HARQ feedback for improving MuLTEfire coverage according to aspects of the present disclosure. The 1600 method operations can be implemented by a base station 105 or its components as described here. For example, method 1600 operations can be performed by a base station coverage manager, as described with reference to FIGs. 7 to 10. In some examples, a base station 105 can execute a set of codes to control the functional elements of the device to perform the functions described below. In addition or alternatively, the base station 105 can perform aspects of the functions described below using special purpose hardware.
[0167] In block 1605, base station 105 can transmit a shared data signal during a plurality of downlink subframes during the first transmission opportunity. The operations of block 1605
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77/92 can be carried out according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the block 1605 operations can be performed by a transmission opportunity component as described with reference to FIGs. 8 and 9.
[0168] In block 1610, base station 105 can determine that the shared data signal continues to be transmitted during a second transmission opportunity that is subsequent to the first transmission opportunity. The operations of block 1610 can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the operations of block 1610 can be performed by a transmission opportunity component as described with reference to FIGs. 8 and 9.
[0169] In block 1615, base station 105 can associate a trigger bit with the common portion of an encoded control signal, the trigger bit indicating a continuous transmission of the shared data signal. The operations of block 1615 can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the operations of block 1615 can be performed by a trigger component as described with reference to FIG. 9.
[0170] In block 1620, base station 105 can transmit the trigger bit with the common portion of the control signal encoded during a downlink subframe which is the first downlink subframe that occurs in a data frame during the second opportunity of streaming. Block 1620 operations can be carried out in accordance with
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78/92 the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the operations of block 1620 can be performed by a transmission opportunity component as described with reference to FIGs. 8 and 9.
[0171] FIG. 17 illustrates a flowchart of a 1700 method for PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. The 1700 method operations can be implemented by a base station 105 or its components as described here. For example, method 1700 operations can be performed by a base station coverage manager, as described with reference to FIGs. 7 to 10. In some examples, a base station 105 can execute a set of codes to control the functional elements of the device to perform the functions described below. In addition or alternatively, the base station 105 can perform aspects of the functions described below using special purpose hardware.
[0172] In block 1705, base station 105 can determine a number of downlink subframes or uplink subframes of the data frame based on the duration of the first transmission opportunity. Block 1705 operations can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the operations of block 1705 can be performed by a subframe determination component as described with reference to FIGs. 8 and 9.
[0173] In block 1710, base station 105 can determine an SNR threshold. Block 1710 operations can be carried out according to the methods described with
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79/92 reference to FIGS. 1 to 6. In certain examples, aspects of the operations of block 1710 can be performed by an SNR component as described with reference to FIG. 9.
[0174] In block 1715, base station 105 can determine the number of downlink or uplink subframes based on the SNR threshold for the first transmission opportunity. The operations of block 1715 can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the operations of block 1715 can be performed by a subframe determining component as described with reference to FIGs. 8 and 9.
[0175] FIG. 18 illustrates a flowchart of an 1800 method for PDCCH and HARQ feedback for improving MuLTEfire coverage in accordance with aspects of the present disclosure. 1800 method operations can be implemented by a UE 115 or its components as described here. For example, method 1800 operations can be performed by an UE coverage manager, as described with reference to FIGs. 11 to 14. In some examples, a UE 115 may execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 can perform aspects of the functions described below using special-purpose hardware.
[0176] In block 1805, UE 115 can receive a control signal encoded in a data frame that includes a common portion and a specific portion of the device during a first transmission opportunity. Block 1805 operations can be
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80/92 carried out according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the 1805 block operations can be performed by a receiving component as described with reference to FIGs. 12 and 13.
[0177] In block 1810, UE 115 can identify that the coded control signal is received during a downlink subframe which is a first downlink subframe that occurs in the data frame. Block 1810 operations can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the operations of block 1810 can be performed by a subframe determining component as described with reference to FIGs. 12 and 13.
[0178] In block 1815 the UE 115 can decode the control signal encoded in the first downlink subframe in the data frame. The operations of block 1815 can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the operations of block 1815 can be performed by a decoding component as described with reference to FIGs. 12 and 13.
[0179] FIG.
illustrates a flowchart of a 1900 method for PDCCH and HARQ feedback for improving MuLTEfire coverage according to aspects of this disclosure. The 1900 method operations can be implemented by a UE 115 or its components as described here. For example, operations of the 1900 method can be performed by an UE coverage manager as described with reference to FIGs. 11 to 14. In some
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81/92 examples, a UE 115 can execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 can perform aspects of the functions described below using special-purpose hardware.
[0180] In block 1905, the UE 115 can receive a shared data signal during a plurality of downlink subframes during a first transmission opportunity. The operations of the 1905 block can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the 1905 block operations can be performed by a transmission opportunity component as described with reference to FIGs. 12 and 13.
[0181] In block 1910, UE 115 may determine that the shared data signal must continue to be received during a second transmission opportunity that is subsequent to the first transmission opportunity. The operations of block 1910 can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the operations of block 1910 can be performed by a signal continuation component, as described with reference to FIG. 13.
[0182] In block 1915, UE 115 can decode a trigger bit from a common portion of the control signal during the second transmission opportunity, the trigger bit indicating a continuous transmission of the shared data signal. The operations of block 1915 can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of
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82/92 operations of block 1915 can be performed by a trigger component as described with reference to FIG. 13.
[0183] In block 1920, UE 115 can receive the trigger bit decoded with the common portion of the control signal during a downlink subframe which is a first downlink subframe that occurs in the data frame during the second transmission opportunity. Block 1920 operations can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the 1920 block operations can be
performed by a component in firing how described with reference to FIG. 13.[0184] i FIG. 20 illustrates a flowchart of one 2000 method for PDCCH and HARQ feedback for improvement gives MuLTEfi coverage agree with aspects of this disclosure. At operations of method 2000 can to be implemented by an EU 115 or yours components like described here. For example, at operations method 2000
can be performed by an UE coverage manager, as described with reference to FIGs. 11 to 14. In some examples, a UE 115 may execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 can perform aspects of the functions described below using special-purpose hardware.
[0185] In block 2005, the UE 115 can receive a control signal encoded in a data frame that includes a common portion and a specific portion of the device during a first opportunity to
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83/92 transmission. The operations of the 2005 block can be carried out according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the 2005 block operations can be performed by a receiving component, as described with reference to FIGs. 12 and 13.
[0186] In block 2010, UE 115 can identify that the coded control signal is received during a downlink subframe which is a first downlink subframe that occurs in the data frame. The 2010 block operations can be carried out according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the 2010 block operations can be performed by a subframe determination component as described with reference to FIGs. 12 and 13.
[0187] In block 2015, UE 115 can decode the control signal encoded in the first downlink subframe in the data frame. Block 2015 operations can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the 2015 block operations can be performed by a decoding component as described with reference to FIGs. 12 and 13.
[0188] In block 2020, the UE 115 can transmit an ACK signal during an uplink subframe of the data frame based on an indication in the common portion of the control signal. Block 2020 operations can be performed according to the methods described with reference to FIGs. 1 to 6. In certain examples, aspects of the bloc 2020 operations can be performed by an opportunity component
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84/92 of transmission as described with reference to FIGs. 12 and 13.
[0189] It should be noted that the methods described above describe possible implementations, and that operations and steps can be rearranged or modified in another way and that other implementations are possible. In addition, aspects of two or more of the methods can be combined.
[0190] The techniques described here can be used for various wireless communication systems such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), access orthogonal frequency division multiple (OFDMA), single carrier frequency division multiple access (SCFDMA) and other systems. The terms system and network are often used interchangeably. A code division multiple access system (CDMA) can implement radio technology such as CDMA2000, UTRA (Universal Terrestrial Radio Access), etc. CDMA2000 covers the IS-2000, IS-95 and IS-856 standards. IS-2000 versions can be commonly referred to as CDMA2000 IX, IX, etc. IS-856 (TIA-856) is commonly called CDMA2000 IxEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes broadband CDMA (WCDMA) and other variants of CDMA. A time division multiple access (TDMA) system can implement radio technology such as GSM (Global System for Mobile) communications.
[0191] An orthogonal frequency division multiple access system (OFDMA) can implement a
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85/92 radio technology such as UMB (Ultra Mobile Broadband), EUTRA (Evolved UTRA), IEEE (Institute of Electrical and Electronics Engineers) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. . UTRA and E-UTRA are part of the UMTS (Universal Mobile Telecommunications) system. 3GPP LTE (Long Term Evolution) and LTE-A (LTE-Advanced) are versions of the UMTS (Universal Mobile Telecommunications) system that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM (Global System for Mobile) communications are described in the organization's documents called 3GPP (3rd Generation Partnership Project). CDMA2000 and UMB are described in documents from an organization called 3GPP2 (3rd Generation Partnership Project 2). The techniques described here can be used for the radio systems and technologies mentioned above, as well as for other radio systems and technologies. Although aspects of an LTE or NR system can be described for example, and LTE or NR terminology can be used in much of the description, the techniques described here are applicable in addition to LTE or NR applications.
[0192] In LTE / LTE-A networks, including the networks described here, the term evolved B node (eNB) can generally be used to describe base stations. The wireless communications system or systems described here may include a heterogeneous LTE / LTE-A or NR network in which different types of evolved B-node (eNBs) provide coverage for various geographic regions. For example, each eNB, gNB or base station can provide communication coverage for a macro cell, a small cell or other types of
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86/92 cell. The term cell can be used to describe a base station, a carrier or component carrier associated with a base station, or a coverage area (e.g., sector, etc.) of a carrier or base station, depending on the context.
[0193] Base stations may include or be referred to by those skilled in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a NodeB, eNóB (eNB), next generation NóB (gNB), Domestic node, domestic node, or some other suitable terminology. The geographic coverage area of a base station can be divided into sectors, making up only part of the coverage area. The wireless communications system or systems described herein may include base stations of different types (for example, macro base stations or small cells). The UEs described herein may be able to communicate with various types of base stations and network equipment, including macro eNBs, small cell eNBs, gNBs, relay base stations and the like. There may be overlapping geographic coverage areas for different technologies.
[0194] A macro cell 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. A small cell is a lower power base station, compared to a macro cell, which can operate on the same or different (for example, licensed, unlicensed, etc.) frequency bands like macro cells.
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87/92
Small cells can include pico cells, femto cells and micro cells according to several examples. A peak cell, for example, can cover a small geographical area and can allow unrestricted access by UEs with service subscriptions with the network provider. A femto cell can also cover a small geographic area (for example, a house) and can provide restricted access by UEs that have an association with the femto cell (for example, UEs in a closed subscriber group (CSG), UEs for users at home, and similar). An eNB for a macro cell can be referred to as an eNB macro. A small cell eNB can be referred to as a small cell eNB, eNB peak, eNB femto, or eNB of origin. An eNB can support one or more cells (for example, two, three, four and the like) (for example, component carriers).
[0195] The wireless communications system or systems described here can support synchronous or asynchronous operation. For synchronous operation, base stations can have similar frame timing, and transmissions from different stations roughly in time. For asynchronous operation, base stations may have different frame timings and transmissions from different base stations may not be aligned over time. The techniques described here can be used for synchronous or asynchronous operations.
[0196] The downlink streams described here can also be called direct link streams, while uplink streams can also be called reverse link streams. Each communication link described here, including, for example, the
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88/92 system 100 and 200 of FIGs. 1 and 2 - can include one or more carriers, where each carrier can be a signal composed of multiple subcarriers (for example, waveform signals of different frequencies).
[0197] The description presented here, in connection with the attached drawings, describes example configurations and does not represent all examples that can be implemented or that are within the scope of the claims. The term exemplary used herein means to serve as an example, case or illustration and is not preferred or advantageous over other examples. The detailed description includes specific details for the purpose of providing an understanding of the techniques described. These techniques, however, can be practiced without these specific details. In some cases, well-known structures and devices are shown in the form of a block diagram to avoid obscuring the concepts of the examples described.
[0198] In the attached figures, similar components or characteristics may have the same reference label. In addition, several components of the same type can be distinguished by following the reference label by a dash and a second label that distinguishes between similar components. If only the first reference label is used in the specification, the description applies to any of the similar components that have the same first reference label, regardless of the second reference label.
[0199] The information and signals described here can be represented using any of several
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89/92 different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and chips that can be referenced throughout the description above can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination of these.
[0200] The various blocks and illustrative modules described in connection with this disclosure may be implemented or carried out with a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or logic transistor, components of discrete hardware or any combination of these designed to perform the functions described here. A general purpose processor can be a microprocessor, but, alternatively, the processor can be any conventional processor, controller, microcontroller or state machine. A processor can also be implemented as a combination of computing devices (for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other configuration).
[0201] The functions described here can be implemented in hardware, software executed by a processor, firmware or any combination thereof. If implemented in software run by a processor, the functions can be stored or transmitted as one or more instructions or code in a computer-readable medium. Other examples and implementations are within the scope of the disclosure and attached claims. Per
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90/92 example, due to the nature of the software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwiring or combinations of any of them. Features that implement functions can also be physically located in various positions, including being distributed so that portions of functions are implemented in different physical locations. In addition, as used here, including in the claims, or as used in a list of items (for example, a list of items preceded by a phrase such as at least one or one or more of) indicates an inclusive list such 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 (that is, A and B and C). Also, as used here, the phrase based on should not be interpreted as a reference to a closed set of conditions. For example, an exemplary step that is described as based on condition A can be based on either condition A or condition B without departing from the scope of the present disclosure. In other words, as used here, the phrase based on must be interpreted in the same way as the phrase based, at least in part, on.
[0202] Computer-readable media includes non-transitory computer storage media and communication media, including any means that facilitates the transfer of a computer program from one place to another. A non-transitory storage medium can be any available medium that can be accessed by a general purpose or special use computer. As a
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91/92 example, and not limitation, computer readable non-transitory media may include RAM memory, ROM, electronically erasable programmable read-only memory (EEPROM), compact disc (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage device, or any other non-transitory medium that can be used to transport or store the desired program codes in the form of instructions or data structures and that can be accessed by a general purpose or special use computer, or a general purpose or special use processor. In addition, any connection is properly called computer-readable media. For example, if the software is transmitted from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave, coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave are included in the media definition. Disk and disk, as used here, include CD, laser disk, optical disk, digital versatile disk (DVD), floppy disk and Blu-ray disk, where disks usually reproduce data magnetically, while disks ( discs) reproduce data optically with lasers. Combinations of the above are also included in the scope of computer-readable media.
[0203] The description here is provided to allow a person skilled in the art to make or use the disclosure. Various changes to the disclosure will be promptly
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92/92 evident to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and concepts described here, but must be in accordance with the broader scope consistent with the innovative principles and characteristics described here.

权利要求:
Claims (13)
[1]
1. A method for wireless communication at a base station, comprising:
assign a downlink subframe that is a first downlink subframe that occurs in a data frame; and transmitting a coded control signal during a first transmission opportunity, the coded control signal comprising a common portion for receiving devices, the common portion indicating a data frame structure, the coded control signal further comprising a specific portion of device for a specific receiving device, the device-specific portion indicating uplink leases and downlink leases during the data frame for the specific receiving device,
in which at minus the common portion control signal encoded is transmitted during the downlink subframe selected.2 . Method according to claim 1, further comprising:transmit a signal shared data
during a plurality of downlink subframes during the first transmission opportunity; and transmitting the shared data signal during a second transmission opportunity that is subsequent to the first transmission opportunity.
A method according to claim 2, further comprising:
associate a trigger bit with the common portion of the
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[2]
2/13 coded control signal, the trigger bit indicating a continuous transmission of the shared data signal; and transmitting the trigger bit with the common portion of the control signal encoded during a downlink subframe which is a first downlink subframe that occurs in the data frame during the second transmission opportunity.
A method according to claim 2, further comprising:
associating a trigger bit with the common portion of the encoded control signal, the trigger bit indicating continuous reception of the shared data signal; and transmitting the trigger bit with the common portion of the control signal encoded during a downlink subframe which is a first downlink subframe that occurs in the data frame during the second transmission opportunity.
A method according to claim 1, wherein the device-specific portion of the coded control signal indicates an amount of repetitive transmissions of a shared data signal that occurs during downlink subframes.
6. Method according to claim 5, wherein the shared data signal comprises a physical downlink shared channel (PDSCH).
A method according to claim 1, wherein the common portion of the coded control signal identifies an uplink subframe of the data frame during which a receiving device has to transmit an acknowledgment signal (ACK).
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[3]
3/13
A method according to claim 1, further comprising:
determine a number of downlink subframes or uplink subframes of the data frame based, at least in part, on a duration of the first transmission opportunity.
A method according to claim 8, wherein determining the number of downlink subframes or uplink subframes of the data frame is based, at least in part, on a subframe configuration parameter.
10. The method of claim 9, wherein determining the number of downlink subframes or uplink subframes of the data frame further comprises:
determining a signal-to-noise ratio (SNR) threshold; and determining the number of downlink or uplink subframes based, at least in part, on the SNR threshold.
11. Method according to claim 1, wherein the coded control signal is an improved machine-type downlink physical control channel (eMPDCCH).
12. The method of claim 1, wherein the common portion and the specific device portion comprise at least one physical downlink control channel (PDCCH), an improved machine-type PDCCH (eMPDCCH) and a common eMPDCCH (CeMPDCCH) or a combination thereof.
13. The method of claim 1, further comprising:
assign a set frame size to
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[4]
4/13 data to a predetermined number of pairs of physical resource blocks based, at least in part, on an aggregation level.
14. The method of claim 13, wherein the predetermined number of pairs of physical resource blocks is 32.
15. The method of claim 13, wherein the aggregation level is 64 or higher.
16. Method for wireless communication on user equipment, comprising:
receiving a control signal encoded in a data frame comprising a common portion and a specific device portion during a first transmission opportunity;
identify that the coded control signal is received during a downlink subframe which is a first
subframe downlinkdecode that occursthe sign at thein picture ofcontrol Dice; and encoded at the first downlink subframe that occurs in the board in Dice. 17. Method, according with claim 16, in
that decoding the coded control signal comprises: decoding the common portion that indicates the structure of the data frame; and decoding the specific device part that indicates uplink leases and downlink leases during the data frame.
18. The method of claim 16, further comprising:
receive a shared data signal during
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[5]
5/13 a plurality of downlink subframes during the first transmission opportunity; and receiving the shared data signal during a second transmission opportunity that is subsequent to the first transmission opportunity.
19. The method of claim 18, wherein receiving the shared data signal further comprises:
decoding a trigger bit from the common portion of the encoded control signal during the second transmission opportunity, the trigger bit indicating a continuous transmission of the shared data signal; and receiving the trigger bit decoded with the common portion of the control signal encoded during a downlink subframe which is a first downlink subframe occurring in the data frame during the second transmission opportunity.
20. The method of claim 16, wherein the device-specific portion of the coded control signal indicates an amount of repetitive transmissions of a shared data signal that occurs during the downlink subframes.
21. The method of claim 20, wherein the shared data signal comprises a physical downlink shared channel (PDSCH).
22. The method of claim 21, further comprising:
receive a number of repetitive PDSCH transmissions during downlink subframes of the data frame based, at least in part, on the portion
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[6]
6/13 device-specific encoded control signal.
23. The method of claim 16, further comprising:
transmitting an acknowledgment signal (ACK) during an uplink subframe of the data frame based, at least in part, on an indication in the common portion of the coded control signal.
24. An apparatus for wireless communication, comprising:
means for assigning a downlink subframe which is a first downlink subframe occurring in the data frame; and means for transmitting a coded control signal during a first transmission opportunity, the coded control signal comprising a common portion for receiving devices, the common portion indicating a data frame structure, the coded control signal further comprising a portion device-specific for a given receiving device, the device-specific portion indicating uplink leases and downlink leases during the data frame for the specific receiving device, where at least the common portion of the encoded control signal is transmitted during the selected downlink subframe.
An apparatus according to claim 24, further comprising:
means for transmitting a shared data signal during a plurality of downlink subframes during the first transmission opportunity; and
Petition 870190049354, of 05/27/2019, p. 104/135
[7]
7/13 means for transmitting the shared data signal during a second transmission opportunity that is subsequent to the first transmission opportunity.
26. Apparatus according to claim 25, further comprising:
means for associating a trigger bit with the common portion of the encoded control signal, the trigger bit that indicates a continuous transmission of the shared data signal; and means for transmitting the trigger bit with the common portion of the control signal encoded during a downlink subframe which is a first downlink subframe occurring in the data frame during the second transmission opportunity.
27. Apparatus according to claim 25, further comprising:
means for associating a trigger bit with the common portion of the encoded control signal, the trigger bit indicating continuous reception of the shared data signal; and means for transmitting the trigger bit with the common portion of the control signal encoded during a downlink subframe which is a first downlink subframe occurring in the data frame during the second transmission opportunity.
An apparatus according to claim 24, wherein the device-specific portion of the encoded control signal indicates an amount of repetitive transmissions of a shared data signal occurring
Petition 870190049354, of 05/27/2019, p. 105/135
[8]
8/13 during downlink subframes.
29. The apparatus of claim 28, wherein the shared data signal comprises a physical downlink shared channel (PDSCH).
Apparatus according to claim 24, wherein the common portion of the coded control signal identifies an uplink subframe of the data frame, during which a receiving device must transmit an acknowledgment signal (ACK).
31. Apparatus according to claim 24, further comprising:
means for determining a number of downlink subframes or uplink subframes of the data frame based, at least in part, on a duration of the first transmission opportunity.
32. Apparatus according to claim 31, wherein determining the number of downlink subframes or uplink subframes of the data frame is based, at least in part, on a subframe configuration parameter.
33. The apparatus of claim 32, further comprising:
means for determining a signal-to-noise ratio (SNR); and means for determining the number of downlink or uplink subframes based, at least in part, on the SNR threshold.
34. Apparatus according to claim 24, wherein the coded control signal is an improved machine-type downlink physical control channel
Petition 870190049354, of 05/27/2019, p. 106/135
[9]
9/13 (eMPDCCH).
35. Apparatus according to claim 24, wherein the common portion and the specific portion of the device comprise at least one physical downlink control channel (PDCCH), an improved machine-type PDCCH (eMPDCCH) and a common eMPDCCH (CeMPDCCH ) or a combination of them.
36. Apparatus according to claim 24, further comprising:
means for assigning a data frame set size to a predetermined number of pairs of physical resource blocks based, at least in part, on an aggregation level.
37. Apparatus, in wake up with the claim 36, on what the predetermined number in blocks pairs in resources physical is 32.38. Apparatus, in wake up with the claim 37,
where the aggregation level is 64 or higher.
39. Apparatus for wireless communication, comprising:
means for receiving a control signal encoded in a data frame comprising a common portion and a specific device portion during a first transmission opportunity;
means for identifying that the coded control signal is received during a downlink subframe which is a first downlink subframe occurring in the data frame; and means for decoding the control signal encoded in the first downlink subframe in the data frame.
Petition 870190049354, of 05/27/2019, p. 107/135
[10]
10/13
40. Apparatus according to claim 39, further comprising:
means for decoding the common portion that indicates the structure of the data frame; and means for decoding the specific portion of the device that indicates uplink leases and downlink leases during the data frame.
41. Apparatus according to claim 39, further comprising:
means for receiving a shared data signal during a plurality of downlink subframes during the first transmission opportunity; and means for receiving the shared data signal during a second transmission opportunity that is subsequent to the first transmission opportunity.
42. The apparatus of claim 41, further comprising:
means for decoding a trigger bit from the common portion of the encoded control signal during the second transmission opportunity, the trigger bit indicating a continuous transmission of the shared data signal; and means for receiving the trigger bit decoded with the common portion of the control signal encoded during a downlink subframe which is the first downlink subframe that occurs in the data frame during the second transmission opportunity.
43. Apparatus according to claim 39, wherein the device-specific portion of the coded control signal indicates an amount of transmissions
Petition 870190049354, of 05/27/2019, p. 108/135
[11]
Repetitive 11/13 of a shared data signal that occurs during downlink subframes.
44. Apparatus according to claim 43, wherein the shared data signal comprises a physical downlink shared channel (PDSCH).
45. Apparatus according to claim 44, further comprising:
means for receiving a quantity of repetitive PDSCH transmissions during downlink subframes of the data frame based, at least in part, on the device-specific portion of the encoded control signal.
46. The apparatus of claim 39, further comprising:
means for transmitting an acknowledgment signal (ACK) during an uplink subframe of the data frame based, at least in part, on an indication in the common portion of the coded control signal.
47. Apparatus for wireless communication, comprising:
a processor;
memory in electronic communication with the processor; and the processor and memory configured to:
assign a downlink subframe which is the first downlink subframe that occurs in the data frame; and transmitting a coded control signal during a first transmission opportunity, the coded control signal comprising a common portion for receiving devices, the common portion indicating a
Petition 870190049354, of 05/27/2019, p. 109/135
[12]
12/13 structure of the data frame, the coded control signal further comprising a device-specific portion for a specific receiving device, the device-specific portion indicating uplink leases and downlink leases during the data frame for the data receiving device. specific reception, in which at least the common portion of the coded control signal is transmitted during the selected downlink subframe.
48. Apparatus for wireless communication, comprising:
a processor;
memory in electronic communication with the processor; and the processor and memory configured to:
receiving a control signal encoded in a data frame comprising a common portion and a specific device portion during a first transmission opportunity;
identifying that the coded control signal is received during a downlink subframe which is a first downlink subframe occurring in the data frame; and decoding the control signal encoded in the first downlink subframe that is occurring in the data frame.
49. Non-transitory computer-readable medium that stores code for wireless communication, the code comprising executable instructions for:
assign a downlink subframe which is the first downlink subframe that occurs in a data frame; and
Petition 870190049354, of 05/27/2019, p. 110/135
[13]
13/13 transmitting a coded control signal during a first transmission opportunity, the coded control signal comprising a common portion for receiving devices, the common portion indicating a data frame structure, the coded control signal further comprising a portion device-specific for a specific receiving device, the device-specific portion indicating uplink leases and downlink leases during the data frame for the specific receiving device, where at least the common portion of the encoded control signal is transmitted during the selected downlink subframe.
50. Readable medium on a non-transitory computer that stores code for wireless communication, the code comprising executable instructions for:
receiving a control signal encoded in a data frame comprising a common portion and a specific device portion during a first transmission opportunity;
identifying that the coded control signal is received during a downlink subframe which is a first downlink subframe occurring in the data frame; and decoding the control signal encoded in the first downlink subframe that occurs in the data frame.

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同族专利:

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公开号 | 公开日

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US10536966B2|2020-01-14|

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KR20190090807A|2019-08-02|

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TW201826742A|2018-07-16|

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TWI741088B|2021-10-01|

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EP3552334A1|2019-10-16|

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CA3041539A1|2018-06-14|

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JP2019537386A|2019-12-19|

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CN110073623A|2019-07-30|

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CN110073623B|2021-11-09|

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US20180167968A1|2018-06-14|

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WO2018106512A1|2018-06-14|

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法律状态:
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