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    • 专利摘要:
    It is a method of operating a wireless communication device that comprises channel encoding of the Channel State Information (CSI) bits together with the Hybrid Automatic Replay Request Confirmation (HARQ) bits (HARQ-ACK) , multiplex the encoded CSI and HARQ-ACK bits together with the encoded data bits, and transmit the multiplexed encoded CSI and HARQ-ACK bits and the encoded data bits on a physical uplink shared channel (PUSCH) ).
    公开号:BR112018072927B1
    申请号:R112018072927-2
    申请日:2017-05-12
    公开日:2020-12-08
    发明作者:Havish Koorapaty；Jung-Fu Cheng；Cagatay Capar
    申请人:Telefonaktiebolaget Lm Ericsson (Publ)；
    IPC主号:
    专利说明:

    CROSS REFERENCE TO RELATED ORDERS
    [0001] This application claims priority of Provisional Patent Application No. U.S. 62 / 336,116 filed on May 13, 2016, the subject matter of which is incorporated herein by reference in its entirety for reference. TECHNICAL FIELD
    [0002] The matter described refers, in general, to telecommunications. Certain modalities refer, more particularly, to methods and devices to perform Hybrid Automatic Repeat Request Confirmation (HARQ) multiplexing (HARQ-ACK) procedures on a physical shared uplink channel (PUSCH). BACKGROUND
    [0003] Long Term Evolution (LTE) uses Orthogonal Frequency Division Multiplexing (OFDM) on the downlink and Discrete Fourier Transform (DFT) -spread OFDM (also called single carrier FDMA (SC-FDMA)) on uplink. Figure (FIG.) 1 illustrates a type of LTE downlink physical resource. The LTE downlink physical resource can be seen as a frequency-time grid, where each resource element corresponds to an OFDM subcarrier during an OFDM symbol interval.
    [0004] Figure 2 illustrates the LTE time domain structure. In the time domain, LTE downlink transmissions are organized in 10 ms radio frames, with each radio frame 210 consisting of ten sub-frames of equal length Tsubquadro = 1 ms, in the illustrated example.
    [0005] In the LTE system, the HARQ protocol is used to improve transmission reliability. Figure 3 illustrates HARQ operations in LTE. As pictured, when an initial transmission is not received correctly by the receiver, the receiver stores the received signal in a soft buffer and signals the transmitter of such an unsuccessful transmission. The transmitter can then relay the information (called a transport block in LTE specifications) using the same bits subjected to channel encoding or different bits subjected to channel encoding. The receiver can then combine the retransmission signal with that stored in the soft buffer. Such a combination of signals considerably improves transmission reliability.
    [0006] In LTE, ACK / NAK feedback is generally sent by the UE using one of two approaches depending on whether the UE is simultaneously transmitting a physical uplink shared channel (PUSCH): • If the UE is not transmitting a PUSCH at the same time, ACK / NAK feedback is sent through a physical uplink control channel (PUCCH). • If the UE is transmitting a PUSCH simultaneously, ACK / NAK feedback is sent via the PUSCH.
    [0007] The use of carrier aggregation (CA) in LTE, introduced in Rel-10 and enhanced in Rel-11, provides a means to increase peak data rates, system capacity and user experience by adding radio from multiple carriers that can reside in the same band or different bands and, for the case of CA TDD between bands, can be configured with different UL / DL configurations. In Rel-12, carrier aggregation between TDD and FDD server cells is introduced to support the UE connecting to them simultaneously.
    [0008] So far, the spectrum used by LTE is dedicated to LTE. This has the advantage that the LTE system does not have to worry about the problem of coexistence and spectrum efficiency can be maximized. However, the spectrum allocated to LTE is limited and fails to satisfy the ever increasing demand for higher throughput of applications / services. Therefore, a new study item was carried out in 3GPP on LTE extension to explore unlicensed spectrum in addition to the licensed spectrum.
    [0009] The 3GPP work on “Licensed Assisted Access” (LAA) is intended to allow LTE equipment to operate in the unlicensed radio spectrum as well. Candidate bands for LTE operation on unlicensed spectrum include 5 GHz, 3.5 GHz, etc. The unlicensed spectrum is used as a complement to the licensed spectrum or allows completely autonomous operation.
    [0010] Figure 4 illustrates the LAA in unlicensed spectrum with the use of carrier aggregation in LTE. LAA on unlicensed spectrum implies that a UE is connected to a PCell in the licensed band and one or more SCells in the unlicensed band. In this description, a secondary cell in an unlicensed spectrum is called a secondary LAA cell (LAA SCell). The LAA SCell can operate in only DL mode or operate with both UL and DL traffic. In addition, in future situations, LTE nodes may operate autonomously on channels exempt from license without the assistance of a licensed cell. Unlicensed spectrum can, by definition, be used simultaneously by multiple different technologies. Therefore, LAA, as described above, needs to consider coexistence with other systems such as IEEE 802.11 (Wi-Fi).
    [0011] To properly coexist with the Wi-Fi system, the transmission at SCell must comply with LBT protocols in order to avoid collisions and cause strong interference in transmissions in progress. This includes both performing LBT before starting transmissions, and limiting the maximum duration of a single transmission trigger. The maximum transmission trip duration is specified by country and region-specific regulations, for example, 4 ms in Japan and 13 ms according to EN 301.893.
    [0012] In addition to the LAA standardization work at the 3GPP forum, other standard definition bodies are also working on related technologies. For example, the Multefire Alliance Forum is striving to add more procedures to the 3GPP LAA system to enable autonomous LTE operations on unlicensed spectrum.
    [0013] In Rel-13, Licensed Assisted Access (LAA) has attracted significant interest in extending the LTE carrier aggregation feature to capture unlicensed spectrum opportunities in the 5GHz band. WLAN that operates in the 5GHz band currently supports 80MHz in the field and 160MHz will be supported soon in Wave 2 distributions of IEEE 802.11ac. There are also other frequency bands, such as 3.5 GHz, in which the aggregation of more than one carrier in the same band is possible, in addition to the bands already widely in use for LTE. Enabling the use of at least similar bandwidths for LTE in combination with LAA in accordance with IEEE 802.11ac Wave 2 will support calls to extend the carrier aggregation structure to support more than 5 carriers. The extension of the CA structure beyond 5 carriers was approved to be a commitment item for LTE Rel-13. The goal is to support up to 32 carriers in both UL and DL.
    [0014] To support up to 32 carriers in DL, UCI feedback, for example, bits of HARQ-ACK will increase significantly. For each DL subframe, there are 1 or 2 bits of HARQ-ACK per carrier depending on whether or not spatial multiplexing is supported. Therefore, for FDD, there can be up to 64 bits of HARQ-ACK if there are 32 DL carriers. The number of bits from HARQ-ACK to TDD is even greater reaching hundreds of bits depending on the TDD configuration. Therefore, a new PUCCH format (s) is needed to support a higher load. Similarly, the accumulation of an increased number of UCI bits also motivates improvements in UCI feedback in PUSCH.
    [0015] Uplink transmissions are programmed dynamically. For example, in each downlink subframe, the base station transmits control information about which terminals should transmit data to eNB in subsequent subframes, and in which resource blocks the data is transmitted. The uplink resource grid is comprised of uplink control information and data on the PUSCH, uplink control information on the PUCCH, and various reference signals such as demodulation reference signals (DMRS) and reference signals from (SRS) if SRS is configured. DMRS are used for consistent demodulation of PUSCH and PUCCH data, while SRS is not associated with any control or data information, but is generally used to estimate uplink channel quality for frequency selective programming purposes.
    [0016] Figure 5 illustrates multiplexing of control information and data in PUSCH. Specifically, an exemplary uplink subframe with only data, DMRS and SRS is depicted. Note that UL DMRS and SRS are multiplexed by time in the UL subframe, and SRS are always transmitted in the last symbol of a normal UL subframe. The PUSCH DMRS is transmitted once to each slot for subframes with normal cyclic prefix, and is located on the fourth and eleventh SC-FDMA symbols.
    [0017] In LTE, the control information can also be carried in the PUSCH instead of in the PUCCH. In this way, the control information and data can be multiplexed in the PUSCH. Control information can include, for example: • Channel status information (CSI) which can additionally be comprised of channel quality indicator (CQI) bits and pre-coding matrix indicator (PMI) • Classification (RI) • HARQ-ACK feedback According to LTE TS 36.212 specifications, v.13.0.0: • The CSI bits submitted to channel coding are multiplexed with the data bits submitted to channel coding. The CSI bits subjected to channel encoding are placed (that is, assigned to resource elements) before the data bits subjected to channel encoding. These bits are interleaved together in the REs available on the PUSCH. Figure 6 illustrates multiplexing of control information and PUSCH data bits, where the CSI bits (CQI / PMI) occupy only the first rows of REs and the data bits occupy most of the rest. • The encoded RI bits are placed in PUSCH SCFDMA symbol # 1, # 5, # 8 and # 12 starting from the bottom. The REs occupied by the encoded RI bits are avoided by the CSI and encoded data bits. • The encoded HARQ-ACK feedback bits are placed in PUSCH SCFDMA symbol # 2, # 4, # 9 and # 11 starting from the bottom. REs occupied by encoded HARQ-ACK feedback bits are NOT avoided by encoded data and CSI bits. In fact, the LTE TS 36.212 specifications describe that the encoded HARQ-ACK feedback bits overwrite REs that already contain encoded data bits.
    [0018] A multiplexing procedure of control information and data was designed in LTE Rel-8 when the predicted HARQ-ACK feedback sizes were somewhat small, for example, 1 to 2 bits. With such a small feedback size of HARQ-ACK, the overwriting of REs from PUSCH data introduces negligible performance losses. SUMMARY
    [0019] In some embodiments of the subject described, a method for operating a wireless communication device comprises channel encoding the CSI bits together with the HARQ-ACK bits, multiplexing the CSI and HARQ-ACK bits encoded together with the encoded data bits, and transmit the multiplexed encoded CSI and HARQ-ACK bits and the encoded data bits in a PUSCH.
    [0020] In certain related modalities, the CSI bits comprise CQI bits.
    [0021] In certain related embodiments, channel encoding of the CSI bits together with the HARQ-ACK bits comprises adding a HARQ-ACK bit stream to the end of a channel quality bit stream to produce a joint stream, and channel encoding of the joint sequence.
    [0022] In certain related modalities, multiplexing the encoded CSI and HARQ-ACK bits together with the encoded data bits comprises assigning the encoded CSI and HARQ-ACK bits together for transmission in a first set of elements of resource in the PUSCH, and subsequently assign the data bits encoded for transmission in a second set of resource elements in the PUSCH, where the first and second sets of resource elements do not include any of the same resource elements.
    [0023] In certain related modalities, the assignment comprises interleaving the encoded CSI and HARQ-ACK bits with the encoded data bits so that the encoded CSI and HARQ-ACK bits are assigned to the first set of resource elements and the encoded data bits are assigned to the second set of resource elements.
    [0024] In certain related modalities, interleaving comprises performing a channel interleaving procedure in which the HARQ-ACK bits are treated as being absent.
    [0025] In certain related modalities, the method additionally comprises receiving upper layer signaling from a radio network node, with the upper layer signaling indicating that the assignment must be performed, and performing the assignment in response to the signaling top layer. In certain related modalities, multiplexing is triggered by PDCCH or ePDCCH signaling.
    [0026] In certain related embodiments, the method further comprises determining whether the number of HARQ-ACK bits or encoded HARQ-ACK bits is greater than a threshold value, and performing channel encoding of the HARQ- ACK together with the CSI bits as a result of the determination. The threshold value can be, for example, 22.
    [0027] In some embodiments of the subject described, a wireless communication device comprises at least one memory, at least one processor and at least one transceiver collectively configured for channel encoding of the CSI bits together with the HARQ-ACK bits, multiplex the encoded CSI and HARQ-ACK bits together with the encoded data bits, and transmit the multiplexed encoded CSI and HARQ-ACK bits and the encoded data bits in a PUSCH.
    [0028] In certain related modalities, the CSI bits comprise CQI bits. In certain related embodiments, channel encoding of the CSI bits together with the HARQ-ACK bits comprises adding a HARQ-ACK bit stream to the end of a channel quality bit stream to produce a joint stream, and joint sequence channel.
    [0029] In certain related modalities, multiplexing the encoded CSI and HARQ-ACK bits together with the encoded data bits comprises assigning the encoded CSI and HARQ-ACK bits together for transmission in a first set of elements of resource in the PUSCH and subsequently assign the data bits encoded for transmission in a second set of resource elements in the PUSCH, where the first and second sets of resource elements do not include any of the same resource elements.
    [0030] In certain related modalities, the assignment comprises interleaving the encoded CSI and HARQ-ACK bits with the encoded data bits so that the encoded CSI and HARQ-ACK bits are assigned to the first set of resource elements and the encoded data bits are assigned to the second set of resource elements.
    [0031] In certain related modalities, interleaving comprises performing a channel interleaving procedure in which the HARQ-ACK bits are treated as being absent.
    [0032] In certain related modalities, at least one memory, at least one processor and at least one transceiver are additionally configured collectively to receive upper layer signaling from a radio network node, the upper layer signaling indicates that the assignment should be performed, and perform the assignment in response to the upper layer signaling.
    [0033] In certain related modalities, multiplexing is triggered by PDCCH or ePDCCH signaling.
    [0034] In certain related modalities, at least one memory, at least one processor and at least one transceiver are additionally configured collectively to determine whether the number of HARQ-ACK bits or HARQ-ACK bits encoded is greater than a threshold value, and to carry out the channel encoding of the HARQ-ACK bits together with the CSI bits as a result of the determination. The threshold value can be, for example, 22.
    [0035] In some embodiments of the subject described, a method for operating a wireless communication device comprises multiplexing the encoded HARQ-ACK bits, the encoded CSI bits and the encoded data bits, wherein the multiplexing comprises assigning the bits of CSI for transmission in a first set of resource elements in a PUSCH and, subsequently, assign the encoded HARQ-ACK bits and the data bits encoded for transmission in the respective second and third sets of resource elements in the PUSCH, where the first, second and second sets of resource elements do not include any of the same resource elements, and transmit the multiplexed encoded HARQ-ACK bits, the encoded CSI bits and the encoded data bits in the PUSCH.
    [0036] In certain related modalities, multiplexing comprises assigning the CSI bits for transmission in a first set of resource elements in the PUSCH and, subsequently, assigning the HARQ-ACK bits encoded for transmission in the second set of resource elements in the PUSCH PUSCH and, subsequently, assign the encoded data bits for transmission in the third set of resource elements in the PUSCH.
    [0037] In certain related modalities, multiplexing comprises assigning the CSI bits for transmission in a first set of resource elements in the PUSCH and, subsequently, assigning the data bits encoded for transmission in the third set of resource elements in the PUSCH and subsequently, assign the encoded HARQ-ACK bits for transmission in the second set of resource elements in the PUSCH.
    [0038] In certain related modalities, multiplexing further comprises configuring an input for an interleaver comprising the encoded CSI bits, followed by the HARQ-ACK bits, followed by the encoded data bits.
    [0039] In certain related modalities, multiplexing further comprises configuring an input for an interleaver comprising the encoded CSI bits, followed by the encoded data bits, followed by the HARQ-ACK bits.
    [0040] In certain related modalities, the method additionally comprises receiving upper layer signaling from a radio network node, with the upper layer signaling indicating that the assignment must be performed, and performing the multiplexing in response to signaling top layer. In certain related modalities, the upper layer signaling comprises RRC signaling. In certain related modalities, multiplexing is triggered by PDCCH or ePDCCH signaling.
    [0041] In certain related modalities, the method further comprises determining whether the number of HARQ-ACK bits or encoded HARQ-ACK bits is greater than a threshold value, and performing the multiplexing as a result of the determination. The threshold value can be, for example, 22.
    [0042] In some embodiments of the subject described, a wireless communication device comprises at least one memory, at least one processor and at least one transceiver collectively configured to multiplex the encoded HARQ-ACK bits, the encoded CSI bits and the encoded data bits, where multiplexing comprises assigning the CSI bits for transmission in a first set of resource elements in a PUSCH and, subsequently, assigning the encoded HARQ-ACK bits and the encoded data bits for transmission in respective second and third sets of resource elements in PUSCH, where the first, second and second sets of resource elements do not include any of the same resource elements, and transmit the multiplexed encoded HARQ-ACK bits, the bits encoded CSI and data bits encoded in a PUSCH.
    [0043] In certain related modalities, multiplexing comprises assigning the CSI bits for transmission in a first set of resource elements in the PUSCH and, subsequently, assigning the HARQ-ACK bits encoded for transmission in the second set of resource elements in the PUSCH PUSCH and, subsequently, assign the encoded data bits for transmission in the third set of resource elements in the PUSCH.
    [0044] In certain related modalities, multiplexing comprises assigning the CSI bits for transmission in a first set of resource elements in the PUSCH and, subsequently, assigning the data bits encoded for transmission in the third set of resource elements in the PUSCH and subsequently, assign the encoded HARQ-ACK bits for transmission in the second set of resource elements in the PUSCH.
    [0045] In certain related modalities, multiplexing further comprises configuring an input for an interleaver comprising the encoded CSI bits, followed by the HARQ-ACK bits, followed by the encoded data bits. In certain related embodiments, multiplexing further comprises configuring an input for an interleaver comprising the encoded CSI bits, followed by the encoded data bits, followed by the HARQ-ACK bits.
    [0046] In certain related modalities, the wireless communication device additionally comprises receiving upper layer signaling from a radio network node, the upper layer signaling indicating that the assignment must be carried out, and performing the multiplexing in response to upper layer signaling. The upper layer signaling can be, for example, RRC signaling.
    [0047] In certain related modalities, multiplexing is triggered by PDCCH or ePDCCH signaling.
    [0048] In certain related modalities, at least one memory, at least one processor and at least one transceiver are collectively configured to determine whether the number of HARQ-ACK bits or encoded HARQ-ACK bits is greater than than a threshold value, and multiply as a result of the determination. The threshold value can be, for example, 22.
    [0049] In some embodiments of the subject described, a method for operating a wireless communication device comprises multiplexing the encoded RI bits, the HARQ-ACK bits, the encoded CSI bits and the encoded data bits, wherein the multiplexing comprises assigning the RI bits for transmission in a first set of resource elements in a PUSCH and subsequently assigning the CSI bits and data bits encoded for transmission in a second set of resource elements in the PUSCH and the bits of HARQ-ACK encoded for transmission in a third set of resource elements in the PUSCH, where the first, second and third sets of resource elements do not include any of the same resource elements, and transmit the encoded RI bits multiplexed, the encoded HARQ-ACK bits, the encoded CSI bits, and the PUSCH encoded data bits.
    [0050] In certain related modalities, multiplexing further comprises configuring an input for an interleaver comprising the encoded RI bits, followed by the CSI bits and encoded data, followed by the HARQ-ACK bits.
    [0051] In certain related modalities, the method additionally comprises receiving upper layer signaling from a radio network node, with the upper layer signaling indicating that the assignment must be carried out, and multiplexing in response to signaling top layer. The upper layer signaling may comprise, for example, RRC signaling. In certain related modalities, multiplexing is triggered by PDCCH or ePDCCH signaling.
    [0052] In certain related modalities, the method further comprises determining whether the number of HARQ-ACK bits or encoded HARQ-ACK bits is greater than a threshold value, and performing the multiplexing as a result of the determination. The threshold value can be, for example, 22.
    [0053] In some embodiments of the subject described, a wireless communication device comprises at least one memory, at least one processor and at least one transceiver collectively configured to multiplex the encoded RI bits, the HARQ-ACK bits, the bits encoded CSI bits and encoded data bits, where multiplexing comprises assigning the RI bits for transmission in a first set of resource elements in a PUSCH and subsequently assigning the CSI bits and encoded data bits for transmission in a second set of resource elements in the PUSCH and the HARQ-ACK bits encoded for transmission in a third set of resource elements in the PUSCH, where the first, second and third sets of resource elements do not include any of the the same resource elements, and transmit multiplexed encoded RI bits, encoded HARQ-ACK bits, encoded CSI bits and encoded data bits in PUSCH.
    [0054] In certain related modalities, multiplexing further comprises configuring an input for an interleaver comprising the encoded RI bits, followed by the CSI bits and encoded data, followed by the HARQ-ACK bits.
    [0055] In certain related modalities, at least one memory, at least one processor and at least one transceiver are additionally configured collectively to receive upper layer signaling from a radio network node, the upper layer signaling indicates that the assignment should be performed, and multiplex in response to the upper layer signaling. The upper layer signaling can be, for example, RRC signaling. In certain related modalities, multiplexing is triggered by PDCCH or ePDCCH signaling.
    [0056] In certain related modalities, at least one memory, at least one processor and at least one transceiver are additionally configured collectively to determine whether the number of HARQ-ACK bits or encoded HARQ-ACK bits is greater than a threshold value, and multiply as a result of the determination. The threshold value can be, for example, 22. BRIEF DESCRIPTION OF THE DRAWINGS
    [0057] The drawings illustrate selected modalities of the described material. In the drawings, equal reference signs denote equal characteristics.
    [0058] Figure 1 illustrates a physical LTE downlink resource.
    [0059] Figure 2 illustrates the LTE time domain structure.
    [0060] Figure 3 illustrates LTE HARQ operations.
    [0061] Figure 4 illustrates LAA in unlicensed spectrum with the use of carrier aggregation in LTE.
    [0062] Figure 5 illustrates control information and multiplexing data in PUSCH.
    [0063] Figure 6 illustrates bits of control information and multiplexing data in PUSCH.
    [0064] Figure 7 illustrates MCS 12—28 transport block error (TBLER) rates with PUSCH 10-PRB allocation without HARQ-ACK feedback puncture on the EVA channel.
    [0065] Figure 8 illustrates TBLERs with 144 REs punctured by HARQ-ACK feedback.
    [0066] Figure 9 illustrates an exemplary wireless network to perform HARQ-ACK multiplexing procedures, in accordance with certain modalities.
    [0067] Figure 10 illustrates an exemplary network node configured to perform HARQ-ACK multiplexing procedures, in accordance with certain modalities.
    [0068] Figure 11 illustrates an exemplary wireless device configured to perform HARQ-ACK multiplexing procedures, in accordance with certain modalities.
    [0069] Figure 12 illustrates a method for performing HARQ-ACK multiplexing procedures, in accordance with certain modalities.
    [0070] Figure 13 illustrates another method for performing HARQ-ACK multiplexing procedures, in accordance with certain modalities.
    [0071] Figure 14 illustrates another method for performing HARQ-ACK multiplexing procedures, in accordance with certain modalities.
    [0072] Figure 15 illustrates a non-limiting example in which the encoded HARQ-ACK bits are placed after the encoded CSI bits, but before the encoded data bits, in accordance with certain modalities.
    [0073] Figure 16 illustrates another non-limiting example in which the encoded HARQ-ACK bits are placed after the encoded CSI bits and the encoded data bits, in accordance with certain modalities.
    [0074] Figure 17 illustrates a non-limiting example for multiplexing encoded CSI and HARQ-ACK bits together with encoded data bits, in accordance with certain modalities.
    [0075] Figure 18 illustrates an example radio network controller or core network node, in accordance with certain modalities. DETAILED DESCRIPTION
    [0076] The description below presents several modalities of the described matter. These modalities are presented as didactic examples and should not be interpreted as limiting the scope of the subject described. For example, certain details of the described modalities can be modified, omitted or expanded without departing from the scope of the described subject.
    [0077] Certain modalities provide solutions to carry feedback information from HARQ-ACK in PUSCH. For example, in certain embodiments, a wireless communication device performs channel encoding together of the CSI and HARQ-ACK bits, then multiplexes the encoded bits together with the encoded data bits and transmits the multiplexed bits in a PUSCH. This approach can avoid puncturing the data bits encoded by the HARQ-ACK bits. In certain other embodiments, a wireless communication device multiplexes the encoded HARQ-ACK bits, the encoded CSI bits and the encoded data bits so that the HARQ-ACK bits do not puncture the encoded data bits.
    [0078] Certain modalities are presented in recognition of deficiencies that the inventors have recognized in conventional approaches, such as the following examples. In 3GPP Rel-13, a maximum of 32 downlink carriers can be configured for a UE. To support such large feedback sizes, new PUCCH Formats 4 and 5 have also been introduced. Consider the example of the new PUCCH Format 4, which has 144 REs to carry encoded HARQ-ACK feedback bits. If these HARQ-ACK feedback bits are carried on the PUSCH, then on each of the PUSCH symbols # 2, # 4, # 9 and # 11, 36 REs will be required according to certain specifications. This will result in substantial overwriting (or puncturing) of the PUSCH data, which can cause severe performance losses.
    [0079] Figure 7 depicts the MCS 12—28 transport block error (TBLER) rates with 10-PRB PUSCH allocation without HARQ-ACK feedback puncture on the EVA channel. Figure 8 depicts the corresponding TBLERs with 144 REs punctured by HARQ-ACK feedback. It can be observed: • PUSCH 16QAM and 64QAM MCS suffer losses of at least 1 dB. • Losses are higher for MCSs with higher encoding rates. High performance losses are expected to be seen when 256QAM MCSs are introduced. • MCS 28 has 100% TBLER and is not usable. MCS 25 also suffers very high performance losses due to unfavorable additional punching patterns.
    [0080] As pictured, the HARQ-ACK feedback punching of PUSCH modulation symbols is concentrated in a code block. Furthermore, punching is at the top of the LTE rate matching procedure and can result in punching patterns that are detrimental to the decoder's ability to reliably retrieve data bits. For some MCSs, additional punching patterns cause unexpectedly substantially greater performance losses (for example, MCS 25). The problem is that the signal is already at the high code rate with carefully balanced rate matching patterns in the turbo code. Modulation symbol punching does not take into account the turbo code structure and destroys finely balanced rate matching patterns.
    [0081] Certain modalities of the subject described can provide one or more technical benefits when compared to conventional approaches. For example, improved methods of carrying HARQ-ACK feedback information in PUSCH can be provided, with a potential benefit of avoiding severe performance degradation when a large size of HARQ-ACK feedback is used and / or another potential benefit of avoiding excessive puncture of the REs of PUSCH data can be avoided. As a result, PUSCH transmission can have improved reliability and performance when compared to conventional approaches.
    [0082] Figure 9 is a block diagram illustrating a network 100 configured to perform switching based on SRS carrier for unlicensed carriers, in accordance with certain modalities. Network 100 comprises one or more wireless devices 110A-C, which can alternatively be called wireless devices 110 or UEs 110, and network nodes 115A-C, which can alternatively be called network nodes 115 or eNodeBs 115. A wireless device 110 can communicate with network nodes 115 through a wireless interface. For example, wireless device 110A can transmit wireless signals to one or more of network nodes 115, and / or receive wireless signals from one or more of network nodes 115. Wireless signals can contain voice traffic, data traffic, control signals and / or any other appropriate information. In some embodiments, an area of wireless signal coverage associated with a network node 115 may be called a cell. In some embodiments, wireless devices 110 may have D2D capability. In this way, wireless devices 110 may be able to receive signals from and / or transmit signals directly to another wireless device 110. For example, wireless device 110A may be able to receive signals from and / or transmit signals for the 110B wireless device.
    [0083] In certain modalities, network nodes 115 can interface with a radio network controller (not shown in Figure 9). The radio network controller can control network nodes 115 and can provide certain radio resource management functions, mobility management functions and / or other suitable functions. In certain embodiments, the functions of the radio network controller can be included in network node 115. The radio network controller can interface with a core network node. In certain embodiments, the radio network controller can interface with the core network node through an interconnection network. The interconnection network can refer to any interconnection system with the capacity to transmit audio, video, signals, data, messages or any combination thereof. The interconnection network can include all or a portion of a public switched telephone network (PSTN), a public or private data network, a local area network (LAN), a metropolitan area network (MAN), a network of wide area (WAN), a computer network or local, regional or global communication such as the Internet, a wired or wireless network, a corporate intranet or any other suitable communication link, including combinations thereof.
    [0084] In some modalities, the core network node can manage the establishment of communication sessions and various other functionalities for wireless devices 110. Wireless devices 110 can exchange certain signals with the core network node using the layer of layer of non-access. In non-access layer signaling, the signals between the wireless devices 110 and the core network node can be passed transparently through the radio access network. In certain embodiments, network nodes 115 can interface with one or more network nodes through an interface between nodes. For example, network nodes 115A and 115B can interface through an X2 interface.
    [0085] As described above, the exemplary modalities of network 100 may include one or more wireless devices 110, and one or more different types of network nodes with the ability to communicate (directly or indirectly) with wireless devices 110 Wireless device 110 can refer to any type of wireless device that communicates with a node and / or another wireless device in a mobile or cellular communication system. Examples of wireless device 110 include a target device, mobile phone, smartphone, PDA (Personal Digital Assistant), portable computer (for example, laptop, tablet, iPad, smartphone), sensor, modem, machine-type communication (MTC) / machine-to-machine device (M2M), laptop-embedded equipment (LEE), laptop-mounted equipment (LME), USB dongles, a D2D-enabled device, or other device that can provide wireless communication.
    [0086] A wireless device 110 can also be called UE, a station (STA), a device or a terminal in some modalities. In addition, in some embodiments, generic terminology, “radio network node” (or simply “network node”) is used. It can be any type of network node, which can comprise a Node B, base station (BS), radio base station, multi-standard radio radio node (MSR) such as MSR BS, eNode B, network controller, radio network controller (RNC), base station controller (BSC), relay donor node control relay, transceiver base station (BTS), access point (AP), transmission points, transmission nodes , RRU, RRH, nodes in distributed antenna system (DAS), core network node (for example MSC, MME etc.), O&M, OSS, SON, positioning node (for example, E-SMLC), MDT or any suitable network node. The exemplary modalities of network nodes 115, wireless devices 110 and other network nodes (such as radio network controller or core network node) are described in more detail with reference to Figures 10, 11 and 17, respectively.
    [0087] Although Figure 9 illustrates a particular arrangement of network 100, the present invention contemplates that the various modalities described in the present document can be applied to a variety of networks having any suitable configuration. For example, network 100 may include any suitable number of wireless devices 110 and network nodes 115, as well as any additional elements suitable for supporting communication between wireless devices or between a wireless device and another communication device (such as a landline). Any of the nodes or devices described above can be considered a first node, second node, etc.
    [0088] In addition, while certain modalities can be described as deployed in a long-term evolution network (LTE), the modalities can be deployed in any appropriate type of telecommunication system that supports any suitable communication standards and that uses any suitable components, and are applicable to any radio access technology (RAT) or multi-RAT systems where the wireless device receives and / or transmits signals (for example, data). For example, the various modalities described in this document may apply to LTE, LTE-Advanced, LTE-U UMTS, HSPA, GSM, cdma2000, WiMax, WiFi, other suitable radio access technology, or any suitable combination of one or more radio access technologies. Although certain modalities can be described in the context of wireless transmissions on the downlink, the present invention contemplates that the various modalities are equally applicable on the uplink and vice versa.
    [0089] The techniques described in this document are applicable to both autonomous LAA LTE and LTE operation on license-exempt channels. The techniques described are generally applicable for transmissions from both network nodes 115 and wireless devices 110.
    [0090] Figure 10 illustrates an example network node 115 configured to perform switching based on SRS carrier for unlicensed carriers, according to certain modalities. As described above, network node 115 can be any type of radio network node or any network node that communicates with a wireless device and / or with another network node. Examples of a network node 115 are provided above.
    [0091] Network nodes 115 can be distributed along network 100 as a homogeneous distribution, heterogeneous distribution or mixed distribution. A homogeneous distribution can generally describe a distribution consisting of the same (or similar) type of network nodes 115 and / or similar coverage and cell sizes and distances between sites. A heterogeneous distribution can generally describe distributions using a variety of types of network nodes 115 that have different cell sizes, transmission powers, capacities and distances between sites. For example, a heterogeneous distribution can include a plurality of low power nodes placed along a macrocell layout. Mixed distributions can include a mixture of homogeneous portions and heterogeneous portions.
    [0092] Network node 115 may include one or more of transceivers 210, processor 220, memory 230 and network interface 240. In some embodiments, transceiver 210 facilitates wireless signal transmission and reception of wireless signals from of wireless device 110 (for example, via an antenna), processor 220 executes instructions to provide some or all of the functionality described above as being provided by a network node 115, memory 230 stores instructions executed by processor 220 , and network interface 240 communicates signals with backend network components, such as a gateway, switch, router, Internet, Public Switched Telephone Network (PSTN), core network nodes or radio network controllers, etc.
    [0093] In certain modalities, network node 115 may have the ability to use multi-antenna techniques, and may be equipped with multiple antennas and have the capacity to support MIMO techniques. The one or more antennas can have controllable polarization. In other words, each element can have two colocalized sub-elements with different polarizations (for example, 90 degree separation as in cross polarization), so that different sets of beam-forming charges will give the emitted wave different polarization.
    [0094] Processor 220 may include any suitable combination of hardware and software deployed in one or more modules to execute instructions and manipulate data to perform some or all of the described functions of network node 115. In some embodiments, processor 220 may include , for example, one or more computers, one or more central processing units (CPUs), one or more microprocessors, one or more applications and / or other logic.
    [0095] Memory 230 is generally operable to store instructions, such as a computer program, software, an application that includes one or more among logic, rules, algorithms, code, tables, etc. and / or other instructions capable of being executed by a processor. Examples of 230 memory include computer memory (for example, Random Access Memory (RAM) or Read-Only Memory (ROM)), mass storage media (for example, a hard drive), removable storage media (for example , a Compact Disc (CD) or Digital Video Disc (DVD) and / or any other volatile or non-volatile memory devices, executable on a computer and / or readable by a non-transitory computer that store information.
    [0096] In some embodiments, network interface 240 is communicatively coupled to processor 220 and can refer to any suitable operable device to receive input to network node 115, send output from network node 115, perform proper processing of the input or output or both, to communicate with other devices, or any combination of the foregoing. The network interface 240 may include appropriate hardware (e.g., port, modem, network interface card, etc.) and software, including data processing and protocol conversion capabilities, to communicate over a network.
    [0097] Other network node modalities 115 may include additional components in addition to those shown in Figure 10 that may be responsible for providing certain aspects of the radio network node functionality, including any of the functionality described above and / or any functionality (including any functionality required to support the solutions described above). The various different types of network nodes may include components that have the same physical hardware, but are configured (for example, programmatically) to support different radio access technologies, or may represent partially or completely different physical components. In addition, the terms first and second are provided for example purposes only and may be alternated.
    [0098] Figure 11 illustrates an exemplary wireless device 110 configured to perform various methods as described in this document, in accordance with certain modalities. As pictured, wireless device 110 includes transceiver 310, processor 320 and memory 330. In some embodiments, transceiver 310 facilitates wireless signal transmission and reception of wireless signals from network node 115 (for example, by through an antenna), processor 320 executes instructions to provide some or all of the functionality described above as being provided by wireless device 110, and memory 330 stores instructions executed by processor 320. Examples of a network node 115 are provided above.
    [0099] Processor 320 may include any suitable combination of hardware and software deployed in one or more modules to execute instructions and manipulate data to perform some or all of the functions described in wireless device 110. In some embodiments, processor 320 may include , for example, one or more computers, one or more central processing units (CPUs), one or more microprocessors, one or more applications and / or other logic.
    [00100] Memory 330 is generally operable to store instructions, such as a computer program, software, an application that includes one or more among logic, rules, algorithms, code, tables, etc. and / or other instructions capable of being executed by a processor. Examples of 330 memory include computer memory (for example, Random Access Memory (RAM) or Read-Only Memory (ROM)), mass storage media (for example, a hard drive), removable storage media (for example , a Compact Disc (CD) or Digital Video Disc (DVD)), and / or any other volatile or non-volatile memory devices, executable on a computer and / or readable by a non-transitory computer that store information.
    [00101] Other modalities of wireless device 110 may include additional components in addition to those shown in Figure 11 that may be responsible for providing certain aspects of wireless device functionality, including any of the functionality described above and / or any additional functionality ( including any functionality required to support the solution described above).
    [00102] According to certain LTE specifications (Section 5.2.2.8 of 3GPP TS 36.212, V13.0.0), data bits, CSI, RI and HARQ-ACK are assigned to different PUSCH REs based on an interleaving procedure. channel. The steps can be summarized as follows: • The encoded IR bits are first written in assigned RE positions. • The CSI and encoded data bits are then written to the remaining RE positions, avoiding those REs already occupied by the encoded RI bits. • The encoded HARQ-ACK bits are finally written to the assigned RE positions by overwriting RE positions that already contain encoded data bits.
    [00103] Figure 12 illustrates a method for performing HARQ-ACK multiplexing procedures, according to certain modalities. As pictured, the encoded HARQ-ACK bits are written in RE positions assigned before the CSI and encoded data bits in a new channel interleaving procedure. The method starts at step 1202 when the encoded RI bits are first written to the assigned RE positions. In step 1204, the encoded HARQ-ACK bits are then written to the assigned RE positions. Note that the encoded RI and HARQ-ACK bits are assigned to different positions, so the encoded HARQ-ACK bits will not overwrite the existing RE positions. In step 1206, the CSI and encoded data bits are finally written to the remaining RE positions avoiding those REs already occupied by the encoded RI and HARQ-ACK bits. In certain embodiments, no further changes are made to the location where the encoded HARQ-ACK bits are placed.
    [00104] In certain modalities, the method to perform the HARQ-ACK multiplexing procedures, as described above in relation to Figure 12, can be performed by a virtual device in a computer network. The virtual computing device can include modules to perform steps similar to those described above in relation to Figure 12. For example, the virtual machine in a computer network can include at least one writing module. In a particular embodiment, for example, at least one writing module can write the HARQ-ACK bits encoded in the RE positions assigned before the CSI and data bits encoded in a new channel interleaving procedure. In a particular embodiment, for example, at least one writing module can write the HARQ-ACK bits encoded in the assigned RE positions. In a particular modality, for example, at least one writing module can write the bits of CSI and encoded data in the remaining RE positions, avoiding those REs already occupied by the encoded RI and HARQ-ACK bits.
    [00105] In some modalities, one or more of the modules can be deployed using one or more processors from the nodes described above in relation to Figures 9, 10 and / or 11. In certain modalities, the functions of two or more among the various modules can be combined into a single module. In addition, the computer network virtual appliance may include additional components in addition to at least one writing module that may be responsible for providing certain aspects of functionality, including any of the functionality described above and / or any additional functionality (including any functionality necessary to support the solutions described above).
    [00106] Figure 13 illustrates another method for performing HARQ-ACK multiplexing procedures, according to certain modalities. The method can ensure that the CSI and data bits avoid the HARQ-ACK bits even if they are written before the HARQ-ACK bits. The method is started at step 1302 when the encoded RI bits are first written to the assigned RE positions. In step 1304, the CSI and encoded data bits are then written to the remaining RE positions avoiding those REs already occupied by the encoded RI bits as well as those REs that will be occupied by the encoded HARQ-ACK bits. In step 1306, the encoded HARQ-ACK bits are finally written to the assigned RE positions. This will not overwrite any RE positions as the RI and HARQ-ACK bits are assigned to different RE positions and the CSI and data bits avoided those HARQ-ACK RE positions. The method of Figure 13 can provide a technical benefit in that the rate matching and channel encoding procedure for the PUSCH data is instructed to produce fewer encoded bits to accommodate the REs that will be occupied by the HARQ-ACK bits.
    [00107] In certain modalities, the method to perform the HARQ-ACK multiplexing procedures, as described above in relation to Figure 13, can be performed by a virtual machine in a computer network. The virtual computing device can include modules to perform steps similar to those described above in relation to the method illustrated and described in Figure 13. For example, the virtual machine in a computer network can include at least one writing module. In a particular embodiment, for example, at least one writing module can write the encoded RI bits and are first written in the assigned RE positions. In a particular modality, for example, at least one writing module can write the bits of CSI and data encoded in the remaining RE positions avoiding those REs already occupied by the encoded RI bits as well as those REs that will be occupied by the bits HARQ-ACK codes. In a particular embodiment, for example, at least one writing module can write the HARQ-ACK bits encoded in the assigned RE positions so that no RE positions are overwritten since the RI and HARQ-ACK bits are assigned the different RE positions and the CSI and data bits avoided those RE positions from HARQ-ACK.
    [00108] In some modalities, one or more of the modules described can be deployed using one or more processors from the nodes described above in relation to Figures 9, 10 and / or 11. In certain modalities, the functions of two or more among the various modules can be combined into a single module. In addition, the computer network virtual appliance may include additional components in addition to at least one writing module that may be responsible for providing certain aspects of functionality, including any of the functionality described above and / or any additional functionality (including any functionality necessary to support the solutions described above).
    [00109] Figure 14 illustrates another method for performing HARQ-ACK multiplexing procedures, in accordance with certain modalities. The method comprises channel encoding the CSI bits together with the HARQ-ACK bits (1402), multiplexing the encoded CSI and HARQ-ACK bits together with the encoded data bits (1404), and transmitting the Multiplexed CSI and HARQ-ACK and data bits encoded in a PUSCH (1406). The CSI bits can comprise, for example, CQI bits.
    [00110] In certain related embodiments, channel encoding of the CSI bits together with the HARQ-ACK bits comprises adding a HARQ-ACK bit stream to the end of a channel quality bit stream to produce a joint stream, and channel encoding of the joint sequence.
    [00111] In certain related modalities, multiplexing the encoded CSI and HARQ-ACK bits together with the encoded data bits comprises assigning the encoded CSI and HARQ-ACK bits together for transmission in a first set of elements of resource in the PUSCH and subsequently assign the data bits encoded for transmission in a second set of resource elements in the PUSCH, where the first and second sets of resource elements do not include any of the same resource elements. The assignment may comprise, for example, interleaving the encoded HARQ-ACK and CSI bits with the encoded data bits so that the encoded CSI and HARQ-ACK bits are assigned to the first set of resource elements and the bits encrypted data to be assigned to the second set of resource elements. The interleaving may comprise, for example, performing a channel interleaving procedure in which the HARQ-ACK bits are treated as being absent.
    [00112] In certain related modalities, the method additionally comprises receiving upper layer signaling from a radio network node, the upper layer signaling (for example, RRC signaling) indicating that the assignment must be performed, and perform the assignment in response to the upper layer signaling. Multiplexing can alternatively be triggered by PDCCH or ePDCCH signaling.
    [00113] In certain embodiments, the method further comprises determining whether the number of encoded HARQ-ACK bits or HARQ-ACK bits is greater than a threshold value, and performing channel encoding of the HARQ-ACK bits along with the CSI bits as a result of the determination. The threshold value can be, for example, 22.
    [00114] The methods described above in relation to Figures 12 to 14 can be performed, for example, by a wireless communication device, such as that described above in relation to Figure 11 or any suitable alternative. In some of these modalities, the various steps in Figures 12 to 14 can be performed by modules, where the term "module" can refer to any suitable combination of hardware and / or software configured to perform a designated function. For example, a wireless communication device for carrying out the method of Figure 14 may comprise a channel encoding module, a multiplexing module and a transmission module for carrying out steps 1402, 1404 and 1406, respectively.
    [00115] Figure 15 illustrates a non-limiting example in which the encoded HARQ-ACK bits are placed (that is, assigned to resource elements or, in other words, subjected to some form of processing so that they end up being carried by those resource elements) after the encoded CSI bits, but before the encoded data bits. Figure 16 illustrates another non-limiting example in which the encoded HARQ-ACK bits are placed after the encoded CSI bits and the encoded data bits.
    [00116] According to certain embodiments, the examples of Figures 15 and 16 include streaming the encoded HARQ-ACK bits with the encoded data bits as well as the encoded CSI bits. That is, bits {g} in the channel interleaver consist of encoded CSI bits, followed by encoded HARQ-ACK bits and followed by encoded data bits. The rest of the channel interleaver procedure can be reused by treating the bits {qACK} as missing. Instead, the 3GPP TS 36.212, V13.0.0 “data multiplexing and control” section can be changed to multiplex these three different types of bits encoded together.
    [00117] According to certain other modalities, the HARQ-ACK bits and the CSI bits can be subjected to the channel coding together. Figure 17 illustrates a non-limiting example for multiplexing the encoded CSI and HARQ-ACK bits together with the encoded data bits. In this way, the CSI and HARQ-ACK bits can be encoded together. This also allows the channel interleaver procedure to be reused by treating the {qACK} bits as missing. Instead, the channel encoding sections of the CSI and HARQ-ACK bits in 3GPP TS 36.212, V13.0.0 can be changed.
    [00118] It is a characteristic of any of the modalities described above that the new procedure is practiced when the number of HARQ-ACK bits, 0ACK, is greater than a threshold. In a non-limiting deployment, the threshold is 22 bits.
    [00119] It is another characteristic of any of the modalities that the new procedure is practiced when the number of HARQ-ACK bits submitted to channel coding, Q'ACK, is greater than a threshold.
    [00120] It is yet another characteristic of any of the modalities that the new procedure is practiced when the HARQ-ACK feedback carried on the PUSCH is triggered by a control channel. In a non-limiting deployment, said control channel is PDCCH. In another non-limiting deployment, said control channel is EPDCCH.
    [00121] It is another characteristic of any of the modalities that the new procedure is practiced if it is configured by upper layer signaling. A non-limiting implementation of upper layer signaling is RRC LTE signaling.
    [00122] Figure 18 illustrates an example radio network controller or core network node, in accordance with certain modalities. Examples of network nodes may include a mobile switching center (MSC), a GPRS support node server (SGSN), a mobility management entity (MME), a radio network controller (RNC), a radio controller base station (BSC), and so on. The radio network controller or core 1800 network node includes 1820 processor, 1830 memory and 1840 network interface. In some embodiments, the 1820 processor executes instructions to provide some or all of the functionality described above as being provided by the network node, memory 1830 stores instructions executed by processor 1820, and network interface 1840 communicates signals to any suitable node, such as a gateway, switch, router, Internet, Public Switched Telephone Network (PSTN), network nodes 115, controllers radio network or 1800 core network nodes, etc.
    [00123] The 1820 processor may include any suitable combination of hardware and software deployed in one or more modules to execute instructions and manipulate data to perform some or all of the described functions of the radio network controller or 1800 core network node. In some embodiments, the 1820 processor may include, for example, one or more computers, one or more central processing units (CPUs), one or more microprocessors, one or more applications and / or other logic.
    [00124] The 1830 memory is generally operable to store instructions, such as a computer program, software, an application that includes one or more among logic, rules, algorithms, code, tables, etc. and / or other instructions that are capable of being executed by a processor. Examples of 1830 memory include computer memory (for example, Random Access Memory (RAM) or Read-Only Memory (ROM)), mass storage media (for example, a hard drive), removable storage media (for example , a Compact Disc (CD) or Digital Video Disc (DVD)), and / or any other volatile or non-volatile, computer-readable and / or non-transitory computer-executable memory devices that store information.
    [00125] In some embodiments, the 1840 network interface is communicatively coupled to the 1820 processor and can refer to any suitable device operable to receive input to the network node, send output from the network node, perform appropriate processing input or output or both, communicate with other devices or any combination of the above. The 1840 network interface can include appropriate hardware (for example, port, modem, network interface card, etc.) and software, including data processing and protocol conversion capabilities, to communicate over a network.
    [00126] Other modalities of the network node may include additional components in addition to those shown in Figure 18 that may be responsible for providing certain aspects of the network node functionality, including any of the functionality described above and / or any additional functionality (including any functionality needed to support the solution described above).
    [00127] The following is a list of acronyms that can be used in this written description. CAUCI carrier aggregationPUCCH uplink control informationLTE uplink physical control channelLong Term Evolution TDDDuplex time domain UDFU domain upstream duoDLE downlink UEULA user equipmentLicense Assistance Licensed TPCCControl power transmission control descending PDCCHChannel downlink physical control channel Enhanced downlink physical control channel DAI Downlink assignment index HARQAck Hybrid Automatic Replay RequestNACKACK Confirmation Negative eNBNó evolved
    [00128] Although the subject described has been presented above with reference to various modalities, it will be understood that several changes in form and details can be made to the described modalities without departing from the general scope of the described subject.
    权利要求:
    Claims (14)
    [0001]
    1. Method of operating a wireless communication device (110) characterized by the fact that it comprises: channel coding the Channel State Information (CSI) bits together with the Hybrid Automatic Repeat Request Confirmation (HARQ) bits (HARQ-ACK) (1402), wherein the channel encoding of the CSI bits together with the HARQ-ACK bits comprises adding a HARQ-ACK bit stream to the end of a channel quality bit stream to produce a joint sequence and channel encoding of the joint sequence; multiplex the CSI and HARQ-ACK encoded bits together with the encoded data bits (1404), where the multiplexing of the CSI and HARQ-ACK encoded bits with the encoded data bits comprises assigning the encoded bits together CSI and HARQ-ACK for transmission in a first set of resource elements in the PUSCH and, subsequently, assign the data bits encoded for transmission in a second set of resource elements in the PUSCH, where the first and the second sets of resource elements do not include any of the same resource elements and where the assignment comprises interleaving the encoded CSI and HARQ-ACK bits with the encoded data bits so that the CSI and HARQ-ACK bits coded are assigned to the first set of resource elements and the coded data bits are assigned to the second set of resource elements; and transmitting the encoded CSI and HARQ-ACK bits and the encoded data bits multiplexed on a physical uplink shared channel (PUSCH) (1406).
    [0002]
    2. Method according to claim 1, characterized by the fact that the CSI bits comprise channel quality indication (CQI) bits.
    [0003]
    3. Method, according to claim 1, characterized by the fact that the interleaving comprises performing a channel interleaving procedure in which HARQ-ACK bits are treated as being absent.
    [0004]
    4. Method, according to claim 1, characterized by the fact that it additionally comprises: receiving upper layer signaling from a radio network node, the upper layer signaling indicating that the assignment is to be performed; and performing the assignment in response to the upper layer signaling.
    [0005]
    5. Method, according to claim 1, characterized by the fact that the multiplexing is triggered by signaling downlink physical control channel (PDCCH) or enhanced downlink physical control channel (ePDCCH).
    [0006]
    6. Method according to claim 1, characterized by the fact that it comprises: determining whether the number of HARQ-ACK bits or encoded HARQ-ACK bits is greater than a threshold value; and performing channel encoding of HARQ-ACK bits together with the CSI bits as a result of the determination.
    [0007]
    7. Method according to claim 6, characterized by the fact that the threshold value is 22.
    [0008]
    8. Wireless communication device (110), characterized by the fact that it comprises: at least one memory (330), at least one processor (320) and at least one transceiver (310) collectively configured to: channel encode the bits Channel Information Information (CSI) together with the Hybrid Automatic Retry Request Confirmation (HARQ) bits (HARQ-ACK) (1402), where the channel encoding of the CSI bits together with the HARQ- ACK comprises adding a HARQ-ACK bit stream to the end of a channel quality bit stream to produce a joint stream and channel encoding of the joint stream; multiplex the CSI and HARQ-ACK encoded bits together with the encoded data bits (1404), where the multiplexing of the CSI and HARQ-ACK encoded bits with the encoded data bits comprises assigning the encoded bits together CSI and HARQ-ACK for transmission in a first set of resource elements in the PUSCH and, subsequently, assign the data bits encoded for transmission in a second set of resource elements in the PUSCH, where the first and the second sets of resource elements do not include any of the same resource elements and where the assignment comprises interleaving the encoded CSI and HARQ-ACK bits with the encoded data bits so that the CSI and HARQ-ACK bits coded are assigned to the first set of resource elements and the coded data bits are assigned to the second set of resource elements; and transmitting the encoded CSI and HARQ-ACK bits and the encoded data bits multiplexed on a physical uplink shared channel (PUSCH) (1406).
    [0009]
    Wireless communication device (110) according to claim 8, characterized in that the CSI bits comprise channel quality indication (CQI) bits.
    [0010]
    10. Wireless communication device (110) according to claim 8, characterized by the fact that the interleaving comprises performing a channel interleaving procedure in which the HARQ-ACK bits are treated as being absent.
    [0011]
    11. Wireless communication device (110) according to claim 8, characterized in that the at least one memory (330), at least one processor (320) and at least one transceiver (310) are additionally configured collectively to receive upper layer signaling from a radio network node, the upper layer signaling indicating that the assignment is to be performed, and to perform the assignment in response to the upper layer signaling.
    [0012]
    12. Wireless communication device (110) according to claim 8, characterized by the fact that the multiplexing is triggered by signaling downlink physical control channel (PDCCH) or enhanced downlink physical control channel (ePDCCH).
    [0013]
    13. Wireless communication device (110) according to claim 8, characterized in that the at least one memory (330), at least one processor (320) and at least one transceiver (310) are additionally configured collectively to determine whether the number of HARQ-ACK bits or encoded HARQ-ACK bits is greater than a threshold value, and to perform channel encoding of HARQ-ACK bits together with the CSI bits as a consequence of the determination.
    [0014]
    14. Wireless communication device (110) according to claim 13, characterized by the fact that the threshold value is 22.
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    法律状态:
    2020-05-05| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2020-10-27| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-12-08| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/05/2017, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201662336116P| true| 2016-05-13|2016-05-13|
    US62/336,116|2016-05-13|
    PCT/IB2017/052809|WO2017195168A1|2016-05-13|2017-05-12|Harq-ack multiplexing in pusch|
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