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    Method For Constructing Sequence Of Polar Codes And Apparatus
    1.
    发明申请
    Method For Constructing Sequence Of Polar Codes And Apparatus 审中-公开

    公开(公告)号：US20180351699A1

    公开(公告)日：2018-12-06

    申请号：US16058118

    申请日：2018-08-08

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Lingchen HUANG ,  Gongzheng ZHANG ,  Chen XU ,  Chaolong ZHANG ,  Jun WANG

    IPC: H04L1/00

    Abstract: Embodiments of this application provide a method and an apparatus for constructing a sequence of polar codes. In an implementation, a tectonic sequence P′ is read from a tectonic sequence P, where the length of the tectonic sequence P′ is an encoding length M and the length of the tectonic sequence P is N. The tectonic sequence P′ is demapped to a reliability ranking sequence Q′ based on a rate matching rule, and K elements that have largest reliability values is read from the reliability ranking sequence Q′, to obtain an information bit sequence number set A.

    WIRELESS COMMUNICATION METHOD AND DEVICE
    2.
    发明申请
    WIRELESS COMMUNICATION METHOD AND DEVICE 有权

    公开(公告)号：US20210352524A1

    公开(公告)日：2021-11-11

    申请号：US17385338

    申请日：2021-07-26

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Shengchen DAI ,  Rong LI ,  Chaolong ZHANG ,  Lingchen HUANG ,  Hejia LUO

    IPC: H04W28/04 ,  H04L1/00 ,  H04L27/26 ,  H04W72/04

    Abstract: This application provides a wireless communication method and device. The method includes: obtaining downlink control information DCI and a scrambled sequence that are sent by a network device, where bits corresponding to the scrambled sequence are scrambled with each piece of configuration information of a plurality of pieces of configuration information used for configuring a terminal device by the network device, each piece of configuration information corresponds to at least one bit in the scrambled sequence, and at least one bit of the bits that correspond to each piece of configuration information does not correspond to another piece of configuration information of the plurality of pieces of configuration information; descrambling, based on a possible value of each piece of configuration information, the bits that correspond to each piece of configuration information, to obtain a descrambled sequence; and performing a check operation by using the descrambled sequence and the DCI.

    CODING METHOD, WIRELESS DEVICE, AND CHIP
    3.
    发明申请
    CODING METHOD, WIRELESS DEVICE, AND CHIP 审中-公开

    公开(公告)号：US20200091935A1

    公开(公告)日：2020-03-19

    申请号：US16689754

    申请日：2019-11-20

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Aleksei Eduardovich MAEVSKII ,  Vladimir GRITSENKO ,  Yunfei QIAO ,  Jian WANG ,  Chaolong ZHANG

    IPC: H03M13/13

    Abstract: A coding method, a wireless device, and a chip are described. A coding method may include obtaining, based on a sequence whose length is 2n′, a mother code sequence used for coding, where the sequence whose length is 2n′ includes 2n′ sequence numbers, a length of the mother code sequence is 2n, the mother code sequence includes 2n sequence numbers, the 2n sequence numbers are some or all of the 2n′ sequence numbers, n′ is a natural number, and n is a natural number less than or equal to n′. The method may also include coding an input to-be-coded bit by using the mother code sequence. According to this method, a system may store one or more long sequences, and then obtain a required mother code sequence from one of the long sequences according to a coding requirement, thereby reducing storage overheads of the system.

    POLAR CODE ENCODING METHOD AND APPARATUS
    4.
    发明申请
    POLAR CODE ENCODING METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20200007163A1

    公开(公告)日：2020-01-02

    申请号：US16569301

    申请日：2019-09-12

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Yourui Huangfu ,  Gongzheng ZHANG ,  Chaolong ZHANG ,  Rong LI ,  Jun WANG

    IPC: H03M13/13 ,  H04L1/00 ,  H04L29/08 ,  H03M13/39 ,  H03M13/09

    Abstract: A polar code encoding method and apparatus are provided. The method includes: obtaining a basic sequence, where the basic sequence is a sequence obtained by sorting sequence numbers of polarized channels in descending order or ascending order of reliability, and a length of the basic sequence is L1; determining, based on a maximum encoding length L2 supported by a receiving device, a quantity M of segments of an information bit sequence whose length is N after encoding, where a quantity of bits in the information bit sequence before the encoding is K; and performing polar code encoding on the M segments based on the basic sequence. According to the polar code encoding method, during polar code construction, an encoding device needs to know only a reliability order of min(N/M, L1) polarized channels. In this way, storage overheads of a nested sequence can be effectively reduced, and online computing complexity can be reduced.

    CODING AND DECODING METHOD AND APPARATUS
    6.
    发明申请
    CODING AND DECODING METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20200092039A1

    公开(公告)日：2020-03-19

    申请号：US16692684

    申请日：2019-11-22

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Jian WANG ,  Yunfei QIAO ,  Gongzheng ZHANG ,  Chaolong ZHANG ,  Guijie WANG

    IPC: H04L1/00 ,  H04W72/04

    Abstract: This application provides a coding and decoding method and apparatus. The method includes: performing polarization coding on first to-be-coded information, to obtain first coded information with a bit sequence length of M, where M is a positive integer; sending the first coded information on a first channel corresponding to the first to-be-coded information; performing polarization coding on second to-be-coded information, to obtain second coded information with a bit sequence length of 2M, where the second to-be-coded information includes the first to-be-coded information, and differences between sequence numbers of information bits corresponding to the first to-be-coded information and sequence numbers of information bits at (M+1)th to 2Mth bit positions in information bits corresponding to the second to-be-coded information are sequentially M in ascending order of sequence numbers.

    Data Encoding and Decoding Methods and Apparatuses
    7.
    发明申请
    Data Encoding and Decoding Methods and Apparatuses 审中-公开

    公开(公告)号：US20190334553A1

    公开(公告)日：2019-10-31

    申请号：US16505200

    申请日：2019-07-08

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Guijie WANG ,  Gongzheng ZHANG ,  Yunfei QIAO ,  Jian WANG ,  Chaolong ZHANG ,  Rong LI

    IPC: H03M13/13 ,  H03M13/00 ,  H03M13/45

    Abstract: Embodiments of the application provides a method for encoding. The method includes: receiving a to-be-encoded data block; encoding the data block at an aggregation level of 2L, where a formula used during the encoding is as follows: [ u . 2   L u . L ]  [ G LN 0 G LN G LN ] = ⌊ C . 2   L C . L ⌋ ( I ) u . L = { u L u L - 1 … u 1 } , u . 2   L =  { u 2  L u 2  L - 1 … u L + 1 } ,  c . L = { c L c L - 1 … c 1 } , c . 2   L = { c 2  L c 2  L - 1 … c L + 1 } , G LN = G N ⊗ log 2 ( L ) ( II ) L=2n, and n is a natural number greater than or equal to 0; and outputting an encoded data block.

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