公开(公告)号：US20190280814A1

公开(公告)日：2019-09-12

申请号：US16423197

申请日：2019-05-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD

Inventor： Chen Xu ,  Gongzheng Zhang ,  Rong Li ,  Huazi Zhang ,  Lingchen Huang

IPC: H04L1/00 ,  H04W72/12 ,  H04L29/08

Abstract: Embodiments of the application provide a method and device for polar code rate matching in a wireless communication network. A device of the network obtains K information bits. The device generates a to-be-encoded sequence having a length N bits. The to-be-encoded sequence includes the K information bits and L frozen bits. The L frozen bits are placed in L bit positions of the to-be-encoded sequence. The L bit positions are determined according to a rate match manner which is either puncturing or shortening. The device polar encodes the to-be-encoded sequence to obtain the encoded sequence. The device interleaves the encoded sequence to obtain an interleaved sequence and then stores the interleaved sequence into a cyclic cache. The device sequentially outputs M bits of the interleaved sequence from the cyclic cache according to the rate matching manner.

公开(公告)号：US10341052B2

公开(公告)日：2019-07-02

申请号：US16214147

申请日：2018-12-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chen Xu ,  Gongzheng Zhang ,  Rong Li ,  Huazi Zhang ,  Lingchen Huang

IPC: H04L1/00 ,  H04L29/08 ,  H04W72/12

Abstract: Embodiments of the application provide a method and device for polar code rate matching in a wireless communication network. A device of the network receives a bit sequence of K information bits. The device polar codes the bit sequence to obtain N encoded bits. The device interleaves the encoded bits to obtain N interleaved bits and then stores the N interleaved bits into cyclic cache. The device sequentially outputs M bits of the N interleaved bits from the cyclic cache according to a rate matching manner, wherein the rate matching manner is one of shortening, puncturing or repetition. When the rate matching manner is puncturing, the (N−M+1)th bit to the Nth bit of the interleaved bit sequence are output from the cyclic cache.

公开(公告)号：US20250141473A1

公开(公告)日：2025-05-01

申请号：US19006868

申请日：2024-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiajie Tong ,  Xianbin Wang ,  Huazi Zhang ,  Rong Li ,  Jun Wang

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

Abstract: A communication method and a communication apparatus. In the method, a transmit end obtains to-be-encoded information, where the to-be-encoded information includes k bits, and k is a positive integer; the transmit end determines that a quantity of code blocks is C, and C is a positive integer; the transmit end performs polar encoding on the to-be-encoded information based on C, to obtain C encoded code blocks; and the transmit end sends the C encoded code blocks. In some implementations, the transmit end determines, based on k and a target bit rate, that the quantity of code blocks is C. In some implementations, the transmit end obtains the C encoded code blocks in a code block coupling manner.

公开(公告)号：US20250096957A1

公开(公告)日：2025-03-20

申请号：US18959118

申请日：2024-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ke Liu ,  Xianbin Wang ,  Huazi Zhang ,  Jiajie Tong ,  Rong Li ,  Jun Wang

IPC: H04L5/00 ,  H04L1/18

Abstract: Embodiments of this application provide an information transmission method and an apparatus. The transmit end sends a first coded bit sequence based on a to-be-transmitted coded bit sequence. The receive end receives and decodes a first to-be-decoded sequence, and sends first indication information if the decoding fails, where the first indication information includes information about a location, in the to-be-transmitted coded bit sequence, of at least one sent coded bit in the to-be-transmitted coded bit sequence. The transmit end receives the first indication information, and sends a second coded bit sequence based on the first indication information, where the second coded bit sequence includes the at least one sent coded bit in the to-be-transmitted coded bit sequence and/or at least one unsent coded bit in the to-be-transmitted coded bit sequence.

公开(公告)号：US12009836B2

公开(公告)日：2024-06-11

申请号：US18188033

申请日：2023-03-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin Li ,  Jiaqi Gu ,  Huazi Zhang

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

CPC classification number: H03M13/13 ,  H03M13/091

Abstract: A data processing method, an apparatus, and a device are disclosed. The data processing method may be performed by a first communications device, and the first communications device is a transmit end of encoded data. The first communications device may send a high-order signal to a second communications device by using a plurality of parallel channels, and information bits in the parallel channels are arranged in a specified order. The method helps improve a transmission rate in a parallel channel transmission scenario, and helps the second communications device perform correct decoding.

公开(公告)号：US11963170B2

公开(公告)日：2024-04-16

申请号：US17187364

申请日：2021-02-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huazi Zhang ,  Rong Li ,  Xianbin Wang ,  Shengchen Dai ,  Yiqun Ge ,  Yan Chen ,  Jun Wang ,  Jianglei Ma

IPC: H04W72/20

CPC classification number: H04W72/20

Abstract: A resource mapping method and apparatus are described that reduce resource mapping complexity. The method includes an access network device obtaining resource mapping information of at least one terminal, and sending the resource mapping information to the at least one terminal respectively. The resource mapping information indicates a resource element RE to which each of the at least one terminal performs mapping in each RMB in a first resource mapping block RMB set. An RE to which a first terminal performs mapping in each RMB in the first RMB set is determined based on a first interleaved sequence, and the first interleaved sequence is determined based on a base sequence. The first terminal is any one of the at least one terminal, and the first RMB set includes at least one RMB.

公开(公告)号：US20230421291A1

公开(公告)日：2023-12-28

申请号：US18464337

申请日：2023-09-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianbin Wang ,  Yuan Li ,  Huazi Zhang ,  Rong Li ,  Jun Wang

IPC: H04L1/00

CPC classification number: H04L1/0057

Abstract: This application provides a polar encoding and modulation method and apparatus, and a demodulation and decoding method and apparatus. In the polar encoding and modulation method, a probability shaping technology is combined with a polar code, to group to-be-encoded bit sequences, and probability shaping is performed on a group of bit sequences. Modulation and mapping are directly performed on all bit sequences obtained through probability shaping, and polar transformation is performed on some bit sequences obtained through probability shaping together with other groups of bit sequences for modulation and mapping. In the demodulation and decoding method, a modulation symbol sequence is demodulated and decoded, a part of obtained bit sequence is directly mapped to obtain a second bit sequence, and the other part is continuously decoded to obtain a first bit sequence.

公开(公告)号：US11277154B2

公开(公告)日：2022-03-15

申请号：US16704859

申请日：2019-12-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guijie Wang ,  Rong Li ,  Jun Wang ,  Gongzheng Zhang ,  Huazi Zhang

IPC: H03M13/00 ,  H03M13/27 ,  H03M13/13

Abstract: A polar code-based interleaving method and apparatus, to resolve a problem existing in the prior art that when a code length is relatively long, an implementation process of reading a sequence obtained after random interleaving is relatively complex, is provided. The method includes: determining an interleaving matrix based on a target code length M of a polar code; and interleaving, based on the interleaving matrix, encoded bits obtained after encoding of the polar code, to generate interleaved bits.

公开(公告)号：US11251904B2

公开(公告)日：2022-02-15

申请号：US16778812

申请日：2020-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yue Zhou ,  Jun Wang ,  Rong Li ,  Ying Chen ,  Jian Wang ,  Huazi Zhang

IPC: H04L1/00

Abstract: This application relates to the field of communications technologies, and discloses a polar code encoding method and apparatus, to improve accuracy of reliability computation and sorting of polar channels. The method is: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polar channels, and the sequence numbers of the N polar channels are arranged in the first sequence based on corresponding reliabilities of the N polar channels, where K is a positive integer, N is a mother code length of a polar code, N is a positive integer that is a power of 2, and K≤N; selecting sequence numbers of K polar channels from the first sequence in descending order of the reliabilities; and placing the to-be-encoded bits based on the selected sequence numbers of the K polar channels, and performing polar code encoding on the to-be-encoded bits.

公开(公告)号：US11133894B2

公开(公告)日：2021-09-28

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: H04L1/00 ,  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.