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    RATE MATCHING METHOD AND APPARATUS FOR POLAR CODE
    11.
    发明申请
    RATE MATCHING METHOD AND APPARATUS FOR POLAR CODE 审中-公开

    公开(公告)号：US20190173491A1

    公开(公告)日：2019-06-06

    申请号：US16272937

    申请日：2019-02-11

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Gongzheng Zhang ,  Ying Chen ,  Rong Li ,  Chaolong Zhang ,  Yourui Huangfu ,  Huazi Zhang

    IPC: H03M13/00 ,  H03M13/13 ,  H03M13/29

    Abstract: A rate matching method for a polar code is provided, to improve performance. The method includes: encoding, based on an N*N encoding matrix of a polar code, a sequence including N first bits, to generate a mother code including N second bits, where the N first bits are in a one-to-one correspondence with N rows in the encoding matrix in sequence, and the N second bits are in a one-to-one correspondence with N columns in the encoding matrix in sequence; determining N−M to-be-punctured second bits from the N second bits, where at least one first bit in N−M first bits participating in encoding of the N−M second bits belongs to the first M first bits in the N first bits, and the N−M first bits are fixed bits; and puncturing the N−M second bits, to obtain a target polar code including M second bits.

    Data transmission method and related device
    15.
    发明授权
    Data transmission method and related device 有权

    公开(公告)号：US11240709B2

    公开(公告)日：2022-02-01

    申请号：US16571161

    申请日：2019-09-15

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Yunfei Qiao ,  Chaolong Zhang ,  Jian Wang ,  Shengchen Dai ,  Rong Li

    IPC: H04W28/06 ,  H04L1/00 ,  H04W28/04

    Abstract: Embodiments provide a data transmission method and a related device. Under the method, after determining a first data packet to be sent to a receive end, a transmit end may generate a second data packet based on the first data packet, encode the second data packet, and send an encoded second data packet. A length of the second data packet is greater than a length of the first data packet. In various embodiments, when sending a data packet to the receive end, the transmit end may generate a longer data packet from a shorter data packet through combination, and send the longer data packet to the receive end after channel coding. In this way, a relatively high channel coding gain can be obtained during data transmission, and a relatively high bit error rate of short packet transmission is avoided, so that data transmission reliability can be improved.

    Coding method, wireless device, and chip
    16.
    发明授权
    Coding method, wireless device, and chip 有权

    公开(公告)号：US11190213B2

    公开(公告)日：2021-11-30

    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: H03M13/00 ,  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.

    Method and device for transmitting data
    17.
    发明授权
    Method and device for transmitting data 有权

    公开(公告)号：US10440732B2

    公开(公告)日：2019-10-08

    申请号：US15914429

    申请日：2018-03-07

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Chaolong Zhang ,  Jian Wang ,  Yunfei Qiao

    IPC: H04W72/12 ,  H04W72/02 ,  H04W72/04 ,  H04L5/00 ,  H04W74/08 ,  H04W74/00 ,  H04W4/70

    Abstract: The invention discloses a data transmission method and apparatus. The method determines a target CTU from multiple candidate CTUs according to a first partial identifier in a terminal device identifier, where the terminal device identifier includes the first partial identifier and a second partial identifier. The method sends an uplink data packet to a network device by using the target CTU, where the uplink data packet carries the second partial identifier. According to the data transmission method and apparatus disclosed, the first partial identifier in the terminal device identifier can be implicitly indicated to reduce signaling overheads of a system.

    Wireless communication method and device
    20.
    发明授权
    Wireless communication method and device 有权

    公开(公告)号：US11665585B2

    公开(公告)日：2023-05-30

    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: H04L1/00 ,  H04W28/04 ,  H04L27/26 ,  H04W72/23

    CPC classification number: H04W28/04 ,  H04L1/001 ,  H04L27/2607 ,  H04W72/23

    Abstract: Examples in this application provide a wireless communication method and device. One example method includes obtaining downlink control information and a scrambled sequence from 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 the 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 the configuration information does not correspond to another piece of configuration information of the plurality of pieces of the configuration information, descrambling, based on a possible value of each piece of the configuration information, the bits corresponding to each piece of the configuration information, to obtain a descrambled sequence, and performing a check operation using the descrambled sequence and the DCI.

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