公开(公告)号：US20190081735A1

公开(公告)日：2019-03-14

申请号：US16186437

申请日：2018-11-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying CHEN ,  Hejia LUO ,  Rong LI ,  Bin LI

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

Abstract: A polar encoding and rate matching method is provided, including: determining one or more to-be-deleted rows of a generator matrix, where the generator matrix is determined based on a preset mother code length, and a column in which 1 in the one or more to-be-deleted rows is located includes at least one column with a column weight being 1; deleting, from the one or more to-be-deleted rows, a row corresponding to a polarized channel with lowest reliability, and deleting, from a column in which 1 in the row is located, a column with a column weight being 1, to obtain an after-deletion generator matrix; using the after-deletion generator matrix as a generator matrix to repeat the foregoing steps, until an order of a final generator matrix is equal to a target code length; and performing encoding and rate matching on a to-be-encoded bit based on the final generator matrix.

公开(公告)号：US20240340071A1

公开(公告)日：2024-10-10

申请号：US18746564

申请日：2024-06-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yue ZHOU ,  Ying CHEN ,  Jun WANG

IPC: H04B7/10 ,  H04L5/00 ,  H04W28/02

CPC classification number: H04B7/10 ,  H04L5/0048 ,  H04W28/0215

Abstract: A communication method and a communication apparatus. The method includes: a terminal device receives first indication information from a network device, where the first indication information indicates the terminal device to feed back a first parameter, the first parameter indicates a degree of crosstalk between a first reference signal and a second reference signal, the first reference signal and the second reference signal are transmitted on a first time domain resource, a first frequency domain resource, and a first space domain resource, the first reference signal is transmitted in a first polarization direction, the second reference signal is transmitted in a second polarization direction, and the first polarization direction and the second polarization direction are two mutually orthogonal polarization directions used for a polarization multiplexing mechanism.

公开(公告)号：US20240275473A1

公开(公告)日：2024-08-15

申请号：US18647056

申请日：2024-04-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yu WANG ,  Hejia LUO ,  Yunfei QIAO ,  Ying CHEN ,  Ruonan YANG

IPC: H04B7/185 ,  H04W36/08

CPC classification number: H04B7/18519 ,  H04W36/083

Abstract: A first satellite obtains a parameter for determining an elevation angle for a departure service of the first satellite in a first serving cell. The first satellite sends first indication information to a terminal device, where the first indication information indicates the elevation angle for the departure service of the first satellite in the first serving cell in which the terminal device is located. The terminal device determines an elevation angle of the terminal device relative to the first satellite based on an ephemeris and location information of the terminal device. The terminal device determines the elevation angle for the departure service based on the first indication information, and compares the elevation angle for the departure service with the elevation angle of the terminal device relative to the first satellite, to determine whether to perform satellite reselection or handover.

公开(公告)号：US20240171307A1

公开(公告)日：2024-05-23

申请号：US18512912

申请日：2023-11-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hejia LUO ,  Yinggang DU ,  Rong LI ,  Lingchen HUANG ,  Ying CHEN

IPC: H04L1/00

CPC classification number: H04L1/0057 ,  H04L1/0071

Abstract: Embodiments of this application provide a method for coding in a wireless communication network. A communication device interleave a first bit sequence to obtain a first interleaved sequence having sequence number starting with a sequence number of 0, wherein the first bit sequence comprises bits for indicating timing, wherein the bits for indicating timing comprises a set of bits for indicating synchronization signal block index (SSBI); wherein the set of bits for indicating SSBI are placed in positions indicated by sequence numbers of 2, 3 and 5 in the first interleaved sequence. The devices add d first CRC bits on the first interleaved sequence to obtain a second bit sequence, interleave on the second bit sequence according to an interleave pattern to obtain a second interleaved sequence, and polar encode the second interleaved sequence to obtain the encoded sequence.

公开(公告)号：US20240056219A1

公开(公告)日：2024-02-15

申请号：US18449536

申请日：2023-08-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rong LI ,  Gongzheng ZHANG ,  Ying CHEN ,  Xiaocheng LIU ,  Jun WANG

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

CPC classification number: H04L1/0058 ,  H04L1/00 ,  H03M13/618 ,  H03M13/635 ,  H03M13/6588 ,  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：US20240031966A1

公开(公告)日：2024-01-25

申请号：US18480124

申请日：2023-10-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying CHEN ,  Yunfei QIAO ,  Jianwei ZHOU ,  Xiaolu WANG ,  Jun WANG

IPC: H04W56/00

CPC classification number: H04W56/0045 ,  H04W56/009

Abstract: A communication parameter indication method and apparatus is provided. The method includes: obtaining first information, where the first information requests a first parameter of a terminal device, and the first parameter includes at least one of: location information of the terminal device and a parameter related to a timing advance TA that is determined based on a round-trip transmission delay between a first reference point and the terminal device, or a round-trip transmission delay between a network device and the terminal device; sending second information based on the first information, where the second information indicates the first parameter; and obtaining third information indicating a timing offset, the timing offset is for determining a scheduling delay degree of sending information by the terminal device, and is related to at least one of a communication parameter corresponding to a cell in which the terminal device is located and the first parameter.

公开(公告)号：US20230056892A1

公开(公告)日：2023-02-23

申请号：US17896298

申请日：2022-08-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Gongzheng ZHANG ,  Yourui HuangFu ,  Lingchen HUANG ,  Ying CHEN ,  Yunfei QIAO ,  Rong LI

IPC: H04W28/04 ,  H04L1/00

Abstract: Embodiments of the application provide a method for transmitting data 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 a first encoded sequence, wherein a length of the first encoded sequence is N, and N is greater than or equal to K. The device block interleaves the first encoded sequence to obtain an interleaved bit sequence. The device determines a transmission code rate R. When the transmission code rate R is less than the code rate threshold, the device outputs a second bit sequence. The length of the second bit sequence is M, M is smaller than N. The second bit sequence is punctured from the interleaved bit sequence by removing (N-M) bits from beginning of the interleaved bit sequence.

公开(公告)号：US20230037135A1

公开(公告)日：2023-02-02

申请号：US17961812

申请日：2022-10-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hejia LUO ,  Xiaolu WANG ,  Ying CHEN ,  Jianwei ZHOU ,  Yinggang DU

IPC: H04B7/185 ,  H04W74/08 ,  H04W36/32 ,  H04W12/037

Abstract: A communication method and apparatus are provided, and relate to the field of wireless communication technologies, to resolve a problem in a conventional technology that communication quality during communication between a satellite and a communication apparatus cannot be ensured, and to ensure security of high-accuracy location information of the satellite. In the method, the communication apparatus may perform random access to the satellite based on first location information. The communication apparatus may perform uplink communication with the satellite based on obtained second location information. Accuracy of a location obtained based on the second location information is higher than accuracy of a location obtained based on the first location information. Based on this solution, required accuracy of location information of the satellite is different.

公开(公告)号：US20220386259A1

公开(公告)日：2022-12-01

申请号：US17819441

申请日：2022-08-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ying CHEN ,  Hejia LUO ,  Xiaolu WANG ,  Yunfei QIAO ,  Rong LI ,  Yinggang DU

IPC: H04W56/00 ,  H04B7/185 ,  H04L27/00 ,  H04L5/00

Abstract: This application provides a satellite communication method and apparatus. The method includes: A terminal device receives first indication information. The first indication information indicates a validity duration of first parameter information. The first parameter information includes at least one of the following information: a first timing advance, parameter information of the first timing advance, a first frequency offset pre-compensation, or parameter information of the first frequency offset pre-compensation. The terminal device performs uplink communication with a satellite in the validity duration based on the first parameter information. The terminal device can obtain, by receiving the first indication information, a validity duration of parameter information such as the first timing advance, the parameter information of the first timing advance, the first frequency offset pre-compensation, or the parameter information of the first frequency offset pre-compensation.

公开(公告)号：US20220123766A1

公开(公告)日：2022-04-21

申请号：US17563573

申请日：2021-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Gongzheng ZHANG ,  Ying CHEN ,  Yunfei QIAO ,  Yourui HUANGFU ,  Rong LI

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

Abstract: Embodiments of this application provide a method for processing information bits in a wireless communication network. A device obtains a Polar encoded bit sequence, then divide the Polar encoded bit sequence into g groups that are of equal length N/g, wherein g is 32. The device block interleaves the g groups to obtain an interleaved bit sequence according to a sequence S, wherein the sequence S comprises: group numbers of the g groups, wherein a group whose number is 0 is the first element in the sequence S, wherein a group whose number is 12 is the 17th element in the sequence S, wherein a group whose number is 31 is the 32nd element in the sequence S, wherein the S is an integer and output the interleaved bit sequence.