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    Data transmission method and related device
    24.
    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
    25.
    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
    26.
    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.

    Data encoding and decoding methods and apparatuses
    28.
    发明授权
    Data encoding and decoding methods and apparatuses 有权

    公开(公告)号：US11362676B2

    公开(公告)日：2022-06-14

    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 ,  H03M13/45 ,  H03M13/00 ,  H03M13/33

    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.

    Control information transmission method and apparatus
    29.
    发明授权
    Control information transmission method and apparatus 有权

    公开(公告)号：US11197281B2

    公开(公告)日：2021-12-07

    申请号：US16503607

    申请日：2019-07-04

    Applicant: HUAWEI TECHNOLOGIES CO., LTD

    Inventor： Jian Wang ,  Jun Wang ,  Rong Li ,  Huazi Zhang ,  Chaolong Zhang

    IPC: H04L1/00 ,  H04W72/04

    Abstract: Embodiments of the present invention provide a control information transmission method and apparatus. The control information transmission method includes: determining, by a network device, N pieces of to-be-jointly-coded downlink control information DCI, where N is an integer greater than or equal to 2; coding, by the network device, the N pieces of DCI in a polar coding manner, to obtain one codeword; and mapping, by the network device, the codeword to a time-frequency resource of a downlink control channel for sending. According to the embodiments of the present invention, not only a relatively high coding gain can be obtained, but a relatively low average processing latency on a decoder side can also be obtained.

    Polar code encoding method and apparatus
    30.
    发明授权
    Polar code encoding method and apparatus 有权

    公开(公告)号：US11088709B2

    公开(公告)日：2021-08-10

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

    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.

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