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    Low latency bit-reversed polar codes
    21.
    发明授权
    Low latency bit-reversed polar codes 有权

    公开(公告)号：US10476525B2

    公开(公告)日：2019-11-12

    申请号：US15704204

    申请日：2017-09-14

    申请人： QUALCOMM Incorporated

    发明人： Gabi Sarkis ,  Hari Sankar ,  Vincent Loncke ,  Joseph Binamira Soriaga ,  Yang Yang

    IPC分类号： H03M13/00 ,  H03M13/15 ,  H03M13/19 ,  G06F17/15 ,  H03M13/11 ,  H03M13/13 ,  G06F17/16 ,  G06F16/901

    摘要： In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine indices associated with m consecutive elements. In an aspect, each of the m consecutive elements may be associated with a different index. In addition, the apparatus may bit reverse a binary sequence associated with each of the m consecutive elements. In an aspect, each of the m consecutive elements may include a different binary sequence. Further, the apparatus may determine a bit-reversed order of the indices based at least in part on the bit-reversed binary sequence associated with each of the m elements. In addition, the apparatus may write each of the m consecutive elements to a different memory bank in parallel based at least in part on the bit-reversed order of the indices.

    Control channel bandwidth determination
    24.
    发明授权
    Control channel bandwidth determination 有权

    公开(公告)号：US10356773B2

    公开(公告)日：2019-07-16

    申请号：US15490851

    申请日：2017-04-18

    申请人： QUALCOMM Incorporated

    发明人： Wanshi Chen ,  Yang Yang ,  Peter Ang ,  Chong Li ,  Hung Ly

    IPC分类号： H04W4/00 ,  H04W72/04 ,  H04W24/02 ,  H04W28/20 ,  H04W74/08 ,  H04L5/00

    摘要： Aspects of the disclosure relate to determination of bandwidth, frequencies, or a set one or more of subbands that carries a downlink control channel. In some examples, a set of one or more subbands that carries a downlink control channel may be determined based on a function of a predetermined reference resource location. The predetermined reference resource location may be a set of one or more subbands that carries one or more synchronization signals and a broadcast channel. Other aspects, embodiments, and features are also claimed and described.

    SYSTEM INFORMATION RATE MATCHING
    26.
    发明申请
    SYSTEM INFORMATION RATE MATCHING 审中-公开

    公开(公告)号：US20190082403A1

    公开(公告)日：2019-03-14

    申请号：US16124501

    申请日：2018-09-07

    申请人： QUALCOMM Incorporated

    发明人： Heechoon LEE ,  Tao Luo ,  Hung Dinh Ly ,  Muhammad Nazmul Islam ,  Yang Yang

    IPC分类号： H04W56/00 ,  H04W72/04 ,  H04W74/08 ,  H04W68/02

    摘要： Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a communication that includes system information, wherein the system information includes information associated with identifying a set of resources that carry synchronization communications, wherein the set of resources is included in a set of potential resources on which synchronization communications can be carried; and perform, based at least in part on a rate matching rule, de-rate matching associated with receiving the system information, wherein the rate matching rule is a rule associated with performing de-rate matching with respect to the set of potential resources. Numerous other aspects are provided.

    SEQUENCE-BASED POLAR CODE DESCRIPTION
    27.
    发明申请
    SEQUENCE-BASED POLAR CODE DESCRIPTION 审中-公开

    公开(公告)号：US20180351696A1

    公开(公告)日：2018-12-06

    申请号：US15819828

    申请日：2017-11-21

    申请人： QUALCOMM Incorporated

    发明人： Yang Yang ,  Jing Jiang ,  Gabi Sarkis ,  Ying Wang ,  Wei Yang

    IPC分类号： H04L1/00

    摘要： Methods, systems, and devices that support an efficient sequence-based polar code description are described. In some cases, a wireless device (e.g., a user equipment (UE) or a base station) may transmit a codeword including a set of information bits encoded using a polar code or receive a codeword including a set of information bits encoded using a polar code. As described herein, the wireless device may determine the bit locations of the information bits in the polar code based on a partition assignment vector. Specifically, the wireless device may partition bit-channels for one or more stages of polarization and assign information bits to partitions based on the partition assignment vector. Once the bit locations of the information bits are determined, the wireless device may decode a received codeword or transmit an encoded codeword based on the determined bit locations of the information bits.

    SEQUENCE-BASED POLAR CODE DESCRIPTION
    28.
    发明申请
    SEQUENCE-BASED POLAR CODE DESCRIPTION 审中-公开

    公开(公告)号：US20180351695A1

    公开(公告)日：2018-12-06

    申请号：US15818393

    申请日：2017-11-20

    申请人： QUALCOMM Incorporated

    发明人： Yang Yang ,  Jing Jiang ,  Gabi Sarkis

    IPC分类号： H04L1/00 ,  H03M13/39 ,  H04W72/04

    CPC分类号： H04L1/0058 ,  H03M13/13 ,  H03M13/3944 ,  H03M13/635 ,  H04L1/0045 ,  H04W72/0466

    摘要： Methods, systems, and devices that support an efficient sequence-based polar code description are described. In some cases, a wireless device (e.g., a user equipment (UE) or a base station) may transmit a codeword including a set of information bits encoded using a polar code or receive a codeword including a set of information bits encoded using a polar code. As described herein, the wireless device may determine the bit locations of the information bits in the polar code based on a partition assignment vector. Specifically, the wireless device may partition bit-channels for one or more stages of polarization and assign information bits to partitions based on the partition assignment vector. Once the bit locations of the information bits are determined, the wireless device may decode a received codeword or transmit an encoded codeword based on the determined bit locations of the information bits.

    EARLY-TERMINATION TECHNIQUES FOR POLAR LIST DECODERS
    29.
    发明申请
    EARLY-TERMINATION TECHNIQUES FOR POLAR LIST DECODERS 审中-公开

    公开(公告)号：US20180323810A1

    公开(公告)日：2018-11-08

    申请号：US15969724

    申请日：2018-05-02

    申请人： QUALCOMM Incorporated

    发明人： Gabi Sarkis ,  Jing Jiang ,  Jamie Menjay Lin ,  Yang Yang

    IPC分类号： H03M13/39 ,  H03M13/37 ,  H04L1/00 ,  H04W72/04

    CPC分类号： H03M13/3961 ,  H03M13/13 ,  H03M13/3738 ,  H03M13/3753 ,  H04L1/0045 ,  H04L1/0057 ,  H04W72/0406 ,  H04W72/0466

    摘要： Methods, systems, and devices for wireless communication are described. In a new radio (NR) system, a wireless device may identify a candidate codeword for a channel employing polar coding. The wireless device may perform a decoding operation on the candidate codeword to determine candidate decoding paths corresponding to encoded information bits. The decoding operation may include multiple decoding path candidates, each of which is associated with a path metric. The wireless device may evaluate a spread metric to determine if a decoding hypothesis is incorrect or if the received codeword is too corrupted for decoding. The spread metric may be based on the path metrics of the decoding paths or soft metrics of the decoding paths determined based on a subset of bit channels of the polar code. The wireless device may normalize the spread metric to compensate for signal-to-noise ratio (SNR) variation.