公开(公告)号：US11190211B2

公开(公告)日：2021-11-30

申请号：US16610722

申请日：2018-04-19

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Di Zhang ,  Jiaqing Wang ,  Xueming Pan ,  Shaohui Sun

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

Abstract: A method and a device of selecting a base graph of a low-density parity-check code are provided. The method includes: acquiring a data information length and a channel coding rate of to-be-encoded data; determining a target base graph selection strategy according to the data information length and an information length range of a base graph; determining a target base graph for the to-be-encoded data according to the target base graph selection strategy and the channel coding rate.

公开(公告)号：US11038531B2

公开(公告)日：2021-06-15

申请号：US16626284

申请日：2018-05-15

Applicant: China Academy of Telecommunications Technology

Inventor： Jiaqing Wang ,  Xijin Mu ,  Di Zhang ,  Baoming Bai ,  Shaohui Sun

IPC: G06F11/00 ,  H03M13/00 ,  H03M13/11

Abstract: An encoding method and apparatus, and a computer storage medium, wherein same are used to improve the LDPC encoding performance, and are thus suitable for 5G systems. The encoding method comprises: determining a base graph of a low density parity check code (LDPC) matrix, and constructing a cyclic coefficient index matrix; determining a sub-cyclic matrix according to the cyclic coefficient index matrix; and carrying out LDPC encoding according to the sub-cyclic matrix and the base graph.

公开(公告)号：US11476971B2

公开(公告)日：2022-10-18

申请号：US16766734

申请日：2018-08-29

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Jiaqing Wang ,  Fang-Chen Cheng ,  Di Zhang ,  Shaohui Sun

IPC: H04W4/00 ,  H04L1/00 ,  H03M13/09 ,  H03M13/13 ,  H03M13/25

Abstract: An encoding method and apparatus, an electronic device and a storage medium are provided. The method includes: determining a target quantity of segments of a sequence to be coded according to a length of the sequence to be coded and a transmission code rate; performing segmentation on the sequence to be coded according to the target quantity; coding each sub-sequence obtained after segmentation, and concatenating sub-sequences after coding.

公开(公告)号：US11218248B2

公开(公告)日：2022-01-04

申请号：US16623380

申请日：2018-04-20

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Jiaqing Wang ,  Fang-Chen Cheng ,  Di Zhang ,  Shaohui Sun

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/00 ,  H04W84/04

Abstract: The present application relates to the technical field of wireless communication, and particularly relates to a channel encoding method and device, for use to solve the problem that at present, there is no physical broadcast channel polar encoding method in a 5G scene. Embodiments of the present application relate to determining a polar mother code length according to transmission resources of a channel; performing polar encoding, according to the polar mother code length, on data needing to be transmitted over the channel to obtain target encoding data; processing the target encoding data according to the length of an actual bearer of the transmission resources; and determining, according to the processed target encoding data, encoding data needing to be transmitted over the channel. The embodiments of the present application achieve determining encoding data according to an actual transmission resource length of a channel, so that the processed encoding data can be ensured to be accurately transmitted over the channel.

公开(公告)号：US11540226B2

公开(公告)日：2022-12-27

申请号：US16977086

申请日：2018-12-05

Applicant: China Academy of Telecommunications Technology

Inventor： Di Zhang ,  Fang-Chen Cheng ,  Xiangli Lin

IPC: H04W52/14 ,  H04B1/713 ,  H04L5/00 ,  H04L5/10 ,  H04W72/04

Abstract: Embodiments of the present application provide a method and a device for determining a power control offset for a PUCCH, for resolving the issue in which existing methods for determining a power control offset for a PUCCH are incompatible with new radio communications systems. The method comprises: determining the number of bits, OUCI, of first uplink control information (UCI) required to be transmitted on a PUCCH, and determining the number, NRE, of resource elements (RE) carrying the first UCI in the PUCCH; and determining, according to formula (I), an offset ΔPUCCH_TF,c(i) for calculation of power control of the PUCCH, and g(OUCI/NRE) is a function having OUCI and NRE as variables thereof.