公开(公告)号：US12224854B2

公开(公告)日：2025-02-11

申请号：US18467782

申请日：2023-09-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huazi Zhang ,  Rong Li ,  Jiajie Tong ,  Xianbin Wang ,  Jun Wang ,  Wen Tong

IPC: H04L1/00 ,  H03M13/13

Abstract: Embodiments of this application relate to the field of communications technologies, and provide an encoding and decoding method and apparatus, to reduce encoding/decoding complexity and improve encoding/decoding performance. In the method, a transmit device may obtain N to-be-encoded vectors. The transmit device may encode the N to-be-encoded vectors based on a polar code kernel matrix, to obtain N temporary code blocks. The transmit device may respectively perform a mask operation on target bit sequences in an (n+1)th temporary code block to an (n+M)th temporary code block and a source bit sequence segment of an nth temporary code block, to obtain M mask bit sequences. The transmit device may respectively encode the M mask bit sequences based on the polar kernel matrix, to obtain M encoded mask bit sequences. The transmit device may sum the M encoded mask bit sequences and M temporary code blocks, to obtain M first code blocks.

公开(公告)号：US12192773B2

公开(公告)日：2025-01-07

申请号：US17852739

申请日：2022-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiangyu Li ,  Xiao Xiao ,  Bo Zhang ,  Jun Wang

IPC: H04L29/06 ,  H04W12/106 ,  H04W12/50 ,  H04W76/14 ,  H04W92/18

Abstract: A communication method and apparatus are disclosed. According to the communication method, corresponding PDCP entities of a first terminal and a second terminal use consistent input parameters when executing security algorithms, thereby ensuring normal communication on a sidelink (SL) and improving communication reliability. In an example embodiment, a first terminal determines a logical channel identifier (LCID) meeting a preset condition, where a first packet data convergence protocol (PDCP) entity of the first terminal is associated with two or more logical channels (LCHs); the first terminal receives a first data packet from a second terminal; and the first PDCP entity of the first terminal parses the first data packet based on the LCID.

公开(公告)号：US12192012B2

公开(公告)日：2025-01-07

申请号：US17710022

申请日：2022-03-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chang Yu ,  Junren Chang ,  Jun Wang ,  Dongdong Wei ,  Nannan Liu

IPC: H04L1/1829 ,  H04L1/1812 ,  H04W72/20

Abstract: This application discloses a HARQ process control method and an apparatus, and relates to the field of communications technologies. The method includes: A first terminal apparatus determines that a TB transmitted in a first HARQ process is a first TB transmitted for the last time or a newly transmitted TB; and stops a first timer. Further, the first terminal apparatus sends, to a second terminal apparatus, first indication information used to indicate that the TB transmitted in the first HARQ process is a newly transmitted TB. The second terminal apparatus receives the first indication information, and stops a second timer based on the first indication information.

公开(公告)号：US12158513B2

公开(公告)日：2024-12-03

申请号：US17609326

申请日：2020-03-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meixin Lin ,  Yunfei Qiao ,  Xian Meng ,  Jun Wang

IPC: H04W36/32 ,  G01S19/25 ,  H04W36/16 ,  H04W84/06 ,  H04W36/00 ,  H04W36/08 ,  H04W36/36

Abstract: This application provides a handover method and apparatus in satellite communications. The handover method in satellite communications in this application includes: obtaining, by a terminal device, ephemeris information of first satellite base stations, where the first satellite base stations are satellite base stations that cover the terminal device; determining, by the terminal device based on the ephemeris information, a destination satellite base station to which the terminal device needs to hand over; determining, by the terminal device based on the determined destination satellite base station, a first time at which the terminal device is to hand over to the destination satellite base station; and handing over, by the terminal device based on the determined first time, to a destination cell served by the destination satellite base station. This application reduces power consumption of the terminal device, saves air interface resources, and further avoids a signaling storm caused because a large quantity of terminal devices report measurement information at the same moment, thereby increasing a handover success rate.

公开(公告)号：US20240396572A1

公开(公告)日：2024-11-28

申请号：US18674754

申请日：2024-05-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie Jin ,  Wen Tong ,  Jun Wang ,  Aleksandr Aleksandrovich Petiushko ,  Ivan Leonidovich Mazurenko ,  Chaolong Zhang

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

Abstract: A low density parity check (LDPC) channel encoding method is used in a wireless communications system. A communication device encodes an input bit sequence by using an LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The base matrix may be one of eight exemplary designs. The encoding method can be used in various communications systems including fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

公开(公告)号：US20240389151A1

公开(公告)日：2024-11-21

申请号：US18787707

申请日：2024-07-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hejia Luo ,  Xiaolu Wang ,  Yu Wang ,  Jun Wang

IPC: H04W74/0816 ,  H04W8/22 ,  H04W56/00 ,  H04W74/08

Abstract: This application provides a communication method and a communication apparatus, to reduce TA error accumulation caused by an open-loop adjustment manner, reduce intersymbol interference of an uplink signal, and improve stability of a communication system. In the method, a terminal device receives and obtains first configuration information, where the first configuration information includes time domain information of a first transmission opportunity; the terminal device sends a first signal, where the first signal is used to determine TA information; the terminal device obtains the TA information; and the terminal device determines a TA between the terminal device and a network device based on the TA information, where the TA is used for data transmission after a time domain start location corresponding to the time domain information of the first transmission opportunity.

公开(公告)号：US20240365200A1

公开(公告)日：2024-10-31

申请号：US18767646

申请日：2024-07-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yu Wang ,  Hejia Luo ,  Rong Li ,  Jun Wang

IPC: H04W36/32 ,  H04W36/08

CPC classification number: H04W36/322 ,  H04W36/083

Abstract: A communication method and apparatus are provided. The method includes: A terminal device obtains first information, where the first information is used for mobility management of ascending-orbit and descending-orbit cells, and the first information is related to a latitude location. The terminal device performs the mobility management based on the first information. According to the method, in a scenario of ascending-orbit and descending-orbit cells in a satellite network, mobility management does not need to be frequently performed with frequency switching of ascending and descending orbits. In this way, efficiency of the mobility management of the terminal device can be improved, and system signaling overheads can also be reduced.

公开(公告)号：US20240349265A1

公开(公告)日：2024-10-17

申请号：US18750816

申请日：2024-06-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenjie Peng ,  Jun Wang ,  Mingzeng Dai ,  Dongdong Wei

IPC: H04W72/0453 ,  H04W72/20 ,  H04W72/23 ,  H04W72/25 ,  H04W76/14 ,  H04W92/18

CPC classification number: H04W72/0453 ,  H04W72/20 ,  H04W72/23 ,  H04W72/25 ,  H04W76/14 ,  H04W92/18

Abstract: A first terminal receives first sidelink SL carrier configuration information from a second terminal, the first SL carrier configuration information includes first bandwidth part BWP configuration information, and the first BWP configuration information includes one or more first resource pools; the first terminal performs unicast connection communication with the second terminal based on the first BWP configuration information.

公开(公告)号：US12119972B2

公开(公告)日：2024-10-15

申请号：US17706291

申请日：2022-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianwei Zhou ,  Chenlei Xu ,  Hejia Luo ,  Jun Wang

IPC: H04L27/26 ,  H04W16/28 ,  H04W84/06

CPC classification number: H04L27/26025 ,  H04L27/2607 ,  H04W16/28 ,  H04W84/06

Abstract: Example signal transmission methods based on satellite communication and apparatus are described. One example method includes: obtaining, by a communication device, carrier attribute information corresponding to a target carrier used to transmit an orthogonal frequency division multiplexing (OFDM) symbol. The carrier attribute information of the target carrier includes subcarrier spacing. The communications device determines a cyclic prefix (CP) length of the OFDM symbol based on the carrier attribute information of the target carrier and a preset correspondence between carrier attribute information and the OFDM symbol. The CP is used to carry first data. The first data is data in the OFDM symbol.

公开(公告)号：US20240333576A1

公开(公告)日：2024-10-03

申请号：US18732486

申请日：2024-06-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiajie Tong ,  Xianbin Wang ,  Huazi Zhang ,  Rong Li ,  Jun Wang

IPC: H04L27/36 ,  H04L27/34

CPC classification number: H04L27/366 ,  H04L27/3444 ,  H04L27/361

Abstract: A communication method and apparatus is provided so that a fading channel can implement a good error correction capability. This helps improve information transmission reliability. The method includes: a transmit end device determines, based on N bit sets, a first sequence and a second sequence that are obtained through quadrature amplitude modulation QAM. The first sequence includes N in-phase components, and the second sequence includes N quadrature components; or the first sequence includes N quadrature components, and the second sequence includes N in-phase components, where N is an integer greater than or equal to 2. Then, the transmit end device performs interleaving processing on the first sequence, to obtain a third sequence. Then, the transmit end device sends, to a receive end device, a symbol sequence determined based on the second sequence and the third sequence. The symbol sequence includes N QAM symbols.