公开(公告)号：US10326555B2

公开(公告)日：2019-06-18

申请号：US16110873

申请日：2018-08-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rong Li ,  Gongzheng Zhang ,  Ying Chen ,  Xiaocheng Liu ,  Jun Wang

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

Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.

公开(公告)号：US20190149268A1

公开(公告)日：2019-05-16

申请号：US16249910

申请日：2019-01-17

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Chen Xu ,  Rong Li ,  Gongzheng Zhang ,  Yue Zhou ,  Lingchen Huang ,  Yunfei Qiao ,  Carmela Cozzo ,  Yiqun Ge

IPC: H04L1/00

Abstract: Embodiments of this application provide a method for encoding data in a wireless communication network. A communication device obtains an information bit sequence of a bit length K and a code length M. When M is greater than or equal to a first threshold and K is greater than or equal to a second threshold, the device divides the information bit sequence into p subsequences that are of an equal length K1. Then the device encodes each of the p subsequence to obtain p encoded subsequences. The device rate-matches each of the p encoded subsequences to obtain p rate matched subsequences, concatenates the p rate matched subsequences to obtain the output sequence of the code length M, then outputs the output sequence.

公开(公告)号：US20190044656A1

公开(公告)日：2019-02-07

申请号：US16146429

申请日：2018-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lingchen Huang ,  Shengchen Dai ,  Chen Xu ,  Yunfei Qiao ,  Rong Li

IPC: H04L1/00

Abstract: This application provides a channel encoding method and apparatus in wireless communications. The method includes: performing CRC encoding on A to-be-encoded information bits, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and A information bits; performing an interleaving operation on the first bit sequence, to obtain a second bit sequence, where a first interleaving sequence used for the interleaving operation is obtained based on a system-supported maximum-length interleaving sequence with the length of Kmax+L, and Kmax is a maximum information bit quantity corresponding to the maximum-length interleaving sequence and a preset rule, and a length of the first interleaving sequence is equal to A+L. Therefore, during distributed CRC encoding, when an information bit quantity is less than the maximum information bit quantity, an interleaving sequence required for completing an interleaving process is obtained based on the system-supported maximum-length interleaving sequence.

公开(公告)号：US20180367251A1

公开(公告)日：2018-12-20

申请号：US16110908

申请日：2018-08-23

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Yue Zhou ,  Yinggang Du ,  Rong Li

IPC: H04L1/00

CPC classification number: H04L1/0058 ,  H03M13/09 ,  H03M13/091 ,  H03M13/13 ,  H03M13/2906 ,  H03M13/635 ,  H03M13/6516 ,  H03M13/6525 ,  H04L1/0041

Abstract: Embodiments of this application provide an encoding and decoding method and device in wireless communications between network devices and user equipment. The encoding method includes: obtaining, by a transmit end, a post-polar-encoding data length corresponding to to-be-encoded data; segmenting, by the transmit end, the to-be-encoded data into at least one code block based on the post-encoding data length and a preset threshold; and performing, by the transmit end, polar encoding on each code block, and transmitting encoded data to a receive end. The embodiments of this application avoid a data transmission performance loss caused by an excessive quantity of segments.

公开(公告)号：US20180367250A1

公开(公告)日：2018-12-20

申请号：US16110873

申请日：2018-08-23

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Rong Li ,  Gongzheng Zhang ,  Ying Chen ,  Xiaocheng Liu ,  Jun Wang

IPC: H04L1/00 ,  H03M13/13

CPC classification number: H04L1/0058 ,  H03M13/13 ,  H04L1/00

Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.