公开(公告)号：US20240073926A1

公开(公告)日：2024-02-29

申请号：US18502608

申请日：2023-11-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei QIAO ,  Ying CHEN ,  Rong LI

IPC: H04W72/232 ,  H04B7/08 ,  H04W72/044 ,  H04W72/231

CPC classification number: H04W72/232 ,  H04B7/088 ,  H04W72/046 ,  H04W72/231 ,  H04W84/06

Abstract: A satellite communication method and apparatus are provided, to reduce the signaling overhead of downlink control information delivered by a satellite and that indicates beam switching when a plurality of communication apparatuses need to simultaneously perform a beam switch. In the method, a plurality of communication apparatuses are grouped based on geographical locations of the plurality of communication apparatuses, and a group identifier of a device group to which a communication apparatus belongs and an identifier of a beam to be switched to during the beam switch are sent, in a broadcast manner, to the communication apparatus that belongs to the same device group.

公开(公告)号：US20240030994A1

公开(公告)日：2024-01-25

申请号：US18479523

申请日：2023-10-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Feiran ZHAO ,  Ying CHEN ,  Yunfei QIAO ,  Rong LI ,  Jun WANG

IPC: H04B7/06

CPC classification number: H04B7/0695 ,  H04B7/0639

Abstract: This application provides a beam switching method and apparatus. The beam switching method includes: A satellite device receives first location information of a terminal device. The satellite device sends first indication information, where the first indication information indicates one or more of K switching time periods. The K switching time periods are determined by the satellite device based on first information. The first information includes the first location information of the terminal device, location information of the satellite device, a velocity vector of the satellite device, and beam information of the satellite device. The K switching time periods are time periods in which the terminal device performs K times of beam switching.

公开(公告)号：US20240022355A1

公开(公告)日：2024-01-18

申请号：US18475887

申请日：2023-09-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei QIAO ,  Ying CHEN ,  Jun WANG

IPC: H04L1/1812 ,  H04W72/232 ,  H04W72/0446

CPC classification number: H04L1/1812 ,  H04W72/232 ,  H04W72/0446

Abstract: This application describes a hybrid automatic repeat request (HARQ) feedback method and apparatus, and a computer-readable storage medium. An example method includes receiving downlink control information (DCI) from a network device, and determining, based on the DCI, a slot interval between a first data block and a HARQ feedback corresponding to the first data block. The method further includes determining a target slot based on a frame structure, and sending, in the target slot to the network device, HARQ information corresponding to the first data block.

公开(公告)号：US20230283350A1

公开(公告)日：2023-09-07

申请号：US18315431

申请日：2023-05-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying CHEN ,  Jianwei ZHOU ,  Hejia LUO ,  Yu WANG ,  Jun WANG

IPC: H04B7/06 ,  H04L5/00 ,  H04B17/318

CPC classification number: H04B7/0639 ,  H04L5/0051 ,  H04B17/328

Abstract: Embodiments of this application provide a channel matrix determining method, an apparatus, and a system, relating to the field of communication technologies, to resolve a technical problem that a manner in which a network device determines a precoding matrix based on an existing PMI indicator is not applicable to long-distance communication. The method includes: A terminal device obtains a plurality of reference signals, determines a first channel matrix based on the plurality of reference signals, and feeds back, to a network device, first information indicating some channel elements in the first channel matrix. The terminal device may further receive a downlink signal determined based on the first information and sent by the network device. A channel element in the some channel elements is determined based on signal strength and/or a time-frequency resource of the reference signal.

公开(公告)号：US20230163890A1

公开(公告)日：2023-05-25

申请号：US18063315

申请日：2022-12-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei QIAO ,  Ying CHEN ,  Xiaolu WANG

IPC: H04L1/1812 ,  H04W72/23 ,  H04W72/12

CPC classification number: H04L1/1812 ,  H04W72/12 ,  H04W72/23

Abstract: Embodiments of this application provide communication methods and apparatuses. One method includes: receiving first indication information from a network device, where the first indication information indicates a first part of a Hybrid Automatic Repeat reQuest (HARQ) process identifier scheduled by the network device, obtaining a second part of the HARQ process identifier, and determining the HARQ process identifier based on the first part of the HARQ process identifier and the second part of the HARQ process identifier.

公开(公告)号：US20220393803A1

公开(公告)日：2022-12-08

申请号：US17886620

申请日：2022-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying CHEN ,  Hejia LUO ,  Yunfei QIAO ,  Rong LI ,  Jun WANG

IPC: H04L1/18 ,  H04L1/16 ,  H04L5/00

Abstract: Embodiments of this disclosure provide a hybrid automatic repeat request (HARQ) bitmap information feedback method and a related device. The method includes: A terminal receives indication information from an access network device, where the indication information is used to determine whether HARQ feedback is needed for a transmit block transmitted in a plurality of downlink transmission units. The terminal determines HARQ bitmap information based on the indication information, where the HARQ bitmap information includes HARQ feedback information of at least one target transmission unit, and the target transmission unit indicates a downlink transmission unit that needs HARQ feedback in the plurality of downlink transmission units. The terminal sends the HARQ bitmap information to the access network device. Some embodiments of the present disclosure can reduce feedback resource overheads in an NTN scenario, reduce a communication delay, and improve a communication throughput rate.

公开(公告)号：US20220303051A1

公开(公告)日：2022-09-22

申请号：US17716402

申请日：2022-04-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L1/00

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：US20200067531A1

公开(公告)日：2020-02-27

申请号：US16671763

申请日：2019-11-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying CHEN ,  Yunfei QIAO ,  Jun WANG ,  Gongzheng ZHANG ,  Hejia LUO ,  Rong LI ,  Lingchen HUANG

IPC: H03M13/13 ,  H03M13/00

Abstract: Embodiments of this application provide a polar code encoding and decoding method and apparatus. The method includes: obtaining an information bit set from a polar code construction sequence table based on an information bit length and a target code length of to-be-encoded information, where the polar code construction sequence table stores a mapping relationship between an encoding parameter and a construction sequence corresponding to the encoding parameter, the construction sequence is a sequence representing an order of reliability of polarized channels, and the encoding parameter includes at least one of an aggregation level, the target code length, and a mother code length, or the encoding parameter is a maximum mother code length; and performing polarization encoding on the to-be-encoded information based on the to-be-encoded information and the information bit set.

公开(公告)号：US20200036474A1

公开(公告)日：2020-01-30

申请号：US16578481

申请日：2019-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hejia LUO ,  Yourui HUANGFU ,  Ying CHEN ,  Shengchen DAI ,  Rong Li

IPC: H04L1/00

Abstract: Embodiments of this application disclose a resource mapping method and an apparatus. The method includes: network device performs nested-structure mapping on a modulated symbol set to obtain a first resource block, where the modulated symbol set carries downlink control information corresponding to each of at least one user equipment, and modulated symbols of same user equipment that are carried on the first resource block are consecutive; then reconstructs, the first resource block to obtain a second resource block, where modulated symbols of same user equipment that are carried on the second resource block are non-consecutive; and maps the second resource block to a time-frequency resource, so that the user equipment obtains the modulated symbol set based on the time-frequency resource.

公开(公告)号：US20200021315A1

公开(公告)日：2020-01-16

申请号：US16579334

申请日：2019-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying CHEN ,  Hejia LUO ,  Huazi ZHANG ,  Gongzheng ZHANG ,  Rong LI ,  Yue ZHOU

IPC: H03M13/00 ,  H03M13/13

Abstract: Embodiments of this application provide a polar code rate matching method and apparatus, and a communications apparatus. The rate matching method includes: determining N to-be-encoded bits, where the N to-be-encoded bits include N1 information bits, and both N1 and N are positive integers; encoding the N to-be-encoded bits to obtain N encoded bits; obtaining a first puncturing sequence based on an information bit length N1, the quantity N of the encoded bits, and a quantity Q of to-be-punctured bits; and performing a puncturing operation on the N encoded bits based on the first puncturing sequence to implement a rate matching. To-be-punctured bits indicated in the first puncturing sequence are obtained based on the information bit length N1, the quantity N of the encoded bits, and the quantity Q of the to-be-punctured bits, and are not generated randomly.