公开(公告)号：US20230022075A1

公开(公告)日：2023-01-26

申请号：US17954425

申请日：2022-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei QIAO ,  Juan SONG ,  Yinggang DU

IPC: H04L1/00

Abstract: A channel encoding method and apparatus. The method includes: obtaining A to-be-encoded information bits; mapping the A to-be-encoded information bits and L CRC bits to a first bit sequence based on an interleaving sequence, where the L CRC bits are obtained based on the A to-be-encoded information bits and a CRC polynomial, the interleaving sequence is obtained from a prestored interleaving sequence table or is obtained based on a maximum-length interleaving sequence, A+L is less than or equal to Kmax, and Kmax is a length of the maximum-length interleaving sequence; and encoding the first bit sequence. In this way, not only an encoding delay can be reduced, but also decoding has an early stop capability, so that decoding can end in advance, thereby reducing a decoding delay.

公开(公告)号：US20210328599A1

公开(公告)日：2021-10-21

申请号：US17322529

申请日：2021-05-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunfei QIAO ,  Yinggang DU ,  Juan SONG

IPC: H03M13/11 ,  H04L1/00 ,  H03M13/00

Abstract: The present disclosure relates to the field of communication technologies, and discloses a polar coding/decoding method and apparatus, to improve sequence lookup efficiency. The method includes: obtaining a first sequence from a polar code construction sequence table based on a coding parameter, where the polar code construction sequence table includes at least one coding parameter and at least one sequence corresponding to the at least one coding parameter, the at least one coding parameter is mapped to the at least one sequence in a one-to-one manner, the first sequence is one of the at least one sequence; selecting serial numbers of K polarized channels from the first sequence based on a rate matching scheme and/or a reliability order; placing to-be-coded bits based on the selected serial numbers of the K polarized channels; and performing polar coding, to obtain a coded bit sequence.

公开(公告)号：US20210211231A1

公开(公告)日：2021-07-08

申请号：US17209674

申请日：2021-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei QIAO ,  Juan SONG ,  Yinggang DU

IPC: H04L1/00

Abstract: A channel encoding method and apparatus. The method includes: obtaining A to-be-encoded information bits; mapping the A to-be-encoded information bits and L CRC bits to a first bit sequence based on an interleaving sequence, where the L CRC bits are obtained based on the A to-be-encoded information bits and a CRC polynomial, the interleaving sequence is obtained from a prestored interleaving sequence table or is obtained based on a maximum-length interleaving sequence, A+L is less than or equal to Kmax, and Kmax is a length of the maximum-length interleaving sequence; and encoding the first bit sequence. In this way, not only an encoding delay can be reduced, but also decoding has an early stop capability, so that decoding can end in advance, thereby reducing a decoding delay.