公开(公告)号：US20230156640A1

公开(公告)日：2023-05-18

申请号：US18156606

申请日：2023-01-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenjun JIANG ,  Hejia Luo ,  Yunfei Qiao ,  Jianwei Zhou ,  Chenlei Xu

IPC: H04W56/00 ,  H04L27/26

CPC classification number: H04W56/001 ,  H04L27/2605

Abstract: This application provides a communication method and apparatus and a computer-readable storage medium. The method includes: receiving one or more synchronization information blocks SSBs; determining, based on a first SSB and/or a second SSB, a network type corresponding to the one or more SSBs; and determining an access network based on the network type. According to technical solutions provided in this application, a network type of an access network can be accurately identified in a frequency sweep stage.

公开(公告)号：US20230139924A1

公开(公告)日：2023-05-04

申请号：US18148438

申请日：2022-12-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunfei Qiao ,  Xiaolu Wang ,  Rong Li

IPC: H04W36/08 ,  H04W36/00 ,  H04W36/30

Abstract: A cell selection method and apparatus. The method includes receiving, by a terminal, a handover command, where the handover command includes indication information indicating a polarization direction of a target cell to be accessed by the terminal, performing, by the terminal, cell handover based on the handover command.

公开(公告)号：US20230047970A1

公开(公告)日：2023-02-16

申请号：US17968018

申请日：2022-10-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenjun Jiang ,  Yunfei Qiao ,  Bin Wang ,  Dali Qin

IPC: H04W52/02

Abstract: Embodiments of this disclosure provide a power adjustment method, apparatus, and system. A first access network device may obtain a power back-off value at a first moment, and compare the power back-off value at the first moment with a power back-off value at a second moment. The second moment is earlier than the first moment. When a difference between the power back-off value at the second moment and the power back-off value at the first moment is greater than or equal to a first threshold, the first access network device adjusts an output power based on the power back-off value at the first moment.

公开(公告)号：US11569930B2

公开(公告)日：2023-01-31

申请号：US17143665

申请日：2021-01-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Wang ,  Lingchen Huang ,  Yunfei Qiao ,  Rong Li ,  Jun Wang ,  Yinggang Du ,  Yiqun Ge

IPC: H04L1/00

Abstract: This application provides a method for communicating a modulation and coding scheme (MCS). A terminal device obtains a modulation order, a code rate, or a spectral efficiency, determines an index of a reference MCS from a mapping table based on the obtained modulation order, code rate, or spectral efficiency, and reports the index of the reference MCS to a network device. The mapping table includes one or more mapping relationships between an MCS index and a modulation order, a code rate, or a spectral efficiency. The terminal device may process uplink or downlink data based on the determined MCS, thereby improving data transmission reliability.

公开(公告)号：US11539457B2

公开(公告)日：2022-12-27

申请号：US17174794

申请日：2021-02-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Gongzheng Zhang ,  Hejia Luo ,  Rong Li ,  Ying Chen ,  Yunfei Qiao

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

Abstract: Embodiments of the application provide a method for rate matching in a wireless communication network. A device obtains K information bits and a target code length M of a polar code, determines, according to a minimum value of a set of values, a mother code length N1, polar encodes the K information bits to obtain an encoded sequence of N1 bits, obtains a target sequence of M bits from the N1 bit encoded sequence, and outputs the M-bit target sequence. When the mother code length N1 is larger than the target code length M, (N1−M) bits of the encoded sequence are punctured or shortened from the N1 bit encoded sequence.

公开(公告)号：US11502780B2

公开(公告)日：2022-11-15

申请号：US17232769

申请日：2021-04-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L1/00 ,  H03M13/09 ,  H03M13/00 ,  H03M13/13 ,  H03M13/29

Abstract: This application provides an encoding method and apparatus in wireless communications between a network device and a terminal. The method includes: performing cyclic redundancy check (CRC) encoding on A to-be-encoded information bits based on a CRC polynomial, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and A information bits, L=11; and performing polar encoding on the first bit sequence.

公开(公告)号：US11362760B2

公开(公告)日：2022-06-14

申请号：US17189834

申请日：2021-03-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Wang ,  Lingchen Huang ,  Yunfei Qiao ,  Rong Li

IPC: H04L27/00 ,  H04L1/00

Abstract: Example Polar code rate matching methods and apparatus are described. One example method includes determining indexes of Z polarized channels on which forced frozen bits are placed, where the Z polarized channels are a subset of N polarized channels corresponding to N to-be-encoded bits, where N=2n, Z

公开(公告)号：US11336301B2

公开(公告)日：2022-05-17

申请号：US17132597

申请日：2020-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yourui Huangfu ,  Jian Wang ,  Rong Li ,  Yunfei Qiao ,  Jun Wang

IPC: H03M13/13 ,  H04L1/00

Abstract: Example polar coding methods and apparatus are described. One example method includes determining a sequence used to code to-be-coded bits. Polar coding is performed on the to-be-coded bits by using the sequence to obtain coded bits. The sequence is used to represent a reliability order of N polarized channels, N is a mother code length of a polar code, and N is a positive integer power of 2.

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.

公开(公告)号：US11121809B2

公开(公告)日：2021-09-14

申请号：US16693906

申请日：2019-11-25

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 a 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 ad 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.