公开(公告)号：US20200007164A1

公开(公告)日：2020-01-02

申请号：US16569745

申请日：2019-09-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yue ZHOU ,  Huazi ZHANG ,  Rong LI ,  Hejia LUO ,  Yunfei QIAO ,  Jun WANG

IPC: H03M13/13 ,  H04L1/00 ,  H03M13/09

Abstract: A coding method, a decoding method, an apparatus, and a device are provided. The method includes: coding, by a sending device, an information bit sequence to obtain a coded bit sequence, where the coded bit sequence includes an information bit, a frozen bit, a CRC check bit, and a frozen check bit; and a value of the frozen check bit and a value of the CRC check bit are obtained by using a same cyclic shift register; performing, by the sending device, polar coding and rate matching on the coded bit sequence to obtain a to-be-sent rate-matched sequence; and sending, by the sending device, the rate-matched sequence. According to the method, time and space for coding calculation and decoding calculation can be effectively reduced, and calculation complexity is reduced.

公开(公告)号：US20190379406A1

公开(公告)日：2019-12-12

申请号：US16549735

申请日：2019-08-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying CHEN ,  Gongzheng ZHANG ,  Yunfei QIAO ,  Rong LI ,  Huazi ZHANG ,  Hejia LUO

IPC: H03M13/39 ,  H03M13/13

Abstract: This application provides a polar encoding and decoding method, a sending device, and a receiving device, to help overcome disadvantages in transmission of medium and small packets, a code rate, reliability, and complexity in the prior art. The method includes: pre-storing, by a computing device, at least one mother code sequence, wherein each mother code sequence comprises at least one subsequence and at least one subset, the at least one subsequence and the at least one subset each comprises one or more sequence numbers corresponding to one or more polarized channels, and wherein the one or more sequence numbers in each subsequence are arranged in an ascending order according to reliability of the corresponding one or more polarized channels; determining, by the computing device, a set of information bit sequence numbers from the at least one mother code sequence based on a code length of a target polar code; and performing, by the computing device, polar encoding on information bits based on the set of information bit sequence numbers.

公开(公告)号：US20190356342A1

公开(公告)日：2019-11-21

申请号：US16529514

申请日：2019-08-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huazi ZHANG ,  Rong LI ,  Yunfei QIAO ,  Hejia LUO ,  Gongzheng ZHANG ,  Ying CHEN

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/15

Abstract: The present disclosure relates to information transmission method, decoding method, and apparatus. One example method includes encoding, by a sending device, a to-be-encoded sequence based on preset parameters to obtain an encoded sequence, where the preset parameters include a quantity of check bits, positions of the check bits, and a check equation, and sending the encoded sequence to a receiving device.

公开(公告)号：US20190312681A1

公开(公告)日：2019-10-10

申请号：US16423172

申请日：2019-05-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hejia LUO ,  Gongzheng ZHANG ,  Rong LI ,  Huazi ZHANG ,  Yourui HUANGFU ,  Jian WANG ,  Ying CHEN ,  Jun WANG

IPC: H04L1/00 ,  H04L29/08

Abstract: Embodiments provide a Polar code transmission method and apparatus. A bit sequence is encoded into a code sequence using Polar code by a network device. The bit sequence contains a control signaling and a Cyclic Redundancy Code (CRC) sequence. The code sequence is transformed into M copies such that an ith information copy of the M copies multiples by a first matrix of the power of (i−1). M is an integer and M>0. M copies of codeword was encoded by Polar code, the M copies implicitly conveys different time stamp information, which is suitable for the transmission of PBCH in 5G communication system, signaling overhead is also reduced.

公开(公告)号：US20190238159A1

公开(公告)日：2019-08-01

申请号：US16383322

申请日：2019-04-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Vladimir GRITSENKO ,  Aleksei Eduardovich MAEVSKII ,  Hejia LUO ,  Jian WANG ,  Rong LI

IPC: H03M13/13 ,  H03M13/00 ,  H03M13/37 ,  H04L1/00

Abstract: A method to explicitly indicate the version information while still supporting soft combining is disclosed. A polar code encoder maps q bits to q positions of q sub-channels, q is a positive integer; wherein the q bits are used to indicate a version of encoded codeword; map 1 to a special frozen bit corresponding to the q bits; map K−q information bits to K−q positions for the K−q information bits, K is an integer, K>q; and perform polar encoding over an input vector u0N−1, comprising the q bits, the special frozen bit and the K−q information bits, with the length of N, N is an integer, N>=K. With this method, there is no need to make blind detection to achieve the version information of transmitted payload, which reduces power consumption for a receiver.

公开(公告)号：US20190115997A1

公开(公告)日：2019-04-18

申请号：US16218719

申请日：2018-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ying CHEN ,  Hejia LUO ,  Rong LI

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/13 ,  H04L5/00

CPC classification number: H04L1/0013 ,  H03M13/13 ,  H03M13/6362 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0069 ,  H04L1/08 ,  H04L1/189 ,  H04L5/0051

Abstract: Embodiments of the present disclosure provide a data transmission method, including: performing polar code coding on to-be-coded bits, to obtain a mother code, where a code length of the mother code is related to K and Mi, i=1, 2, . . . , K, K is a quantity of sending times, Mi is a length of bits sent at an ith time, and K and Mi are positive integers greater than 1; performing rate matching on the mother code, to obtain to-be-sent bits, where a quantity of the to-be-sent bits is a sum of lengths of bits sent at K times; and sending Mi to-be-sent bits at the ith time.