公开(公告)号：US20240179560A1

公开(公告)日：2024-05-30

申请号：US18427829

申请日：2024-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin Xu ,  Bingzhao Li ,  Zhenzhen Cao

IPC: H04W28/06 ,  H04J3/06 ,  H04W36/00

CPC classification number: H04W28/06 ,  H04J3/0667 ,  H04W36/0033

Abstract: This application provides a communication method and a communication apparatus. The method includes: A target access network device determines that a first terminal device is handed over from a source access network device to the target access network device; and sends first information to the first terminal device, where the first information indicates a first packet header compression context, and the first packet header compression context is for compressing or decompressing a packet header of a data packet. In this application, the target access network device sends, to the first terminal device, the first information indicating the first packet header compression context, so that in a handover scenario, the first terminal device can correctly decompress a subsequently received data packet with a compressed packet header. This helps improve communication reliability.

公开(公告)号：US11997740B2

公开(公告)日：2024-05-28

申请号：US17389909

申请日：2021-07-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingzhao Li ,  Guohua Yu ,  Haibo Xu

IPC: H04W4/02 ,  H04W74/0833 ,  H04W76/19

CPC classification number: H04W76/19 ,  H04W74/0833

Abstract: This application provides a radio resource control (RRC) message sending method and an apparatus. According to the method, a distributed unit (DU) determines not to start an RLC polling mechanism when sending an RRC message to a terminal device, so that when sending the RRC message to UE, the DU sets a polling bit in a header of an RLC PDU carrying the RRC message to be in an inactive state. Therefore, after receiving the RRC message, the terminal device does not feed back an RLC status report to the DU. Therefore, the terminal device does not need to initiate a random access procedure to obtain an uplink transmission resource for sending the RLC status report to the DU, thereby saving random access resources.

公开(公告)号：US20240089835A1

公开(公告)日：2024-03-14

申请号：US18516476

申请日：2023-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongyu Xiang ,  Bin Xu ,  Lei Chen ,  Bingzhao Li

IPC: H04W48/14 ,  H04W72/30

CPC classification number: H04W48/14 ,  H04W72/30

Abstract: A terminal device determines that local first system information is abnormal in the case of any of the following: a quantity of times of sending first signaling is greater than or equal to a first preset threshold within first preset duration; a time length in which a first service is unavailable is greater than or equal to a second preset threshold; a change trend of a tag value of a same system information block is abnormal; or a quantity of changes in a tag value of a same system information block is greater than or equal to a third preset threshold within second preset duration. The terminal device receives, from an access network device, second system information that is used to update the local first system information. Therefore, the terminal device can determine as soon as possible whether the terminal device is being attacked by a rogue base station.

公开(公告)号：US20240032110A1

公开(公告)日：2024-01-25

申请号：US18447056

申请日：2023-08-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junren Chang ,  Zhenzhen Cao ,  Bingzhao Li ,  Haibo Xu ,  Xuelong Wang

IPC: H04W74/08 ,  H04L5/00 ,  H04W56/00 ,  H04W72/1273

CPC classification number: H04W74/0833 ,  H04L5/0092 ,  H04L5/0094 ,  H04W56/001 ,  H04W72/1273

Abstract: A method includes: performing, by a terminal device, data transmission based on a configuration parameter of a currently activated first bandwidth part BWP, where the configuration parameter of the first BWP includes at least one of a first resource offset, a first bandwidth, and a first subcarrier spacing; determining, by the terminal device, a first random access resource and a second configuration parameter for random access, where the second configuration parameter includes at least one of a second resource offset, a second bandwidth, and a second subcarrier spacing; sending, by the terminal device, a random access request to the network device on the first random access resource; and receiving, by the terminal device, a random access response based on the second configuration parameter, where the random access response is sent by the network device based on the random access request.

公开(公告)号：US20230396488A1

公开(公告)日：2023-12-07

申请号：US18450919

申请日：2023-08-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin Xu ,  Bingzhao Li ,  Li Chai ,  Zhenzhen Cao

IPC: H04L41/0668 ,  H04W76/27 ,  H04L1/08 ,  H04W24/02 ,  H04W72/0453

CPC classification number: H04L41/0668 ,  H04W76/27 ,  H04W72/0453 ,  H04W24/02 ,  H04L1/08

Abstract: This application provides a method for handling a radio link failure, a terminal device, and a network device. The method includes: sending, by a terminal device, duplicated data packets to a network device on a first carrier and a second carrier; and sending, by the terminal device, RLF indication information to the network device in accordance with determining that an RLF event occurs on at least one of the first carrier and the second carrier, where the RLF indication information is used to indicate that the RLF event occurs on the first carrier, the second carrier, or the first carrier and the second carrier. The foregoing technical solution can optimize handling of the radio link failure.

公开(公告)号：US20230362886A1

公开(公告)日：2023-11-09

申请号：US18351950

申请日：2023-07-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bingzhao Li

IPC: H04W68/02 ,  H04W76/28 ,  H04W4/06

CPC classification number: H04W68/02 ,  H04W76/28 ,  H04W4/06

Abstract: An access network device receives first indication information sent by a terminal device, where the first indication information indicates an identifier of a data packet of a multicast service that has been received by the terminal device; the access network device determines a target data packet based on the first indication information; and the access network device sends the target data packet to the terminal device. The terminal device reports the identifier of the received data packet of the multicast service, so that the access network device may determine, based on the identifier, a data packet that is of a multicast service and that has been sent but has not been received by the terminal device.

公开(公告)号：US11805440B2

公开(公告)日：2023-10-31

申请号：US17464378

申请日：2021-09-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingzhao Li ,  Lei Guan ,  Jianghua Liu

IPC: H04W28/04 ,  H04L1/18 ,  H04W4/06

CPC classification number: H04W28/04 ,  H04L1/18 ,  H04W4/06

Abstract: Examples in this application provide a communication method, apparatus, device, and system, and a storage medium. One example method includes determining, by a terminal device, that the first data packet of the target service sent by the first network device is not successfully received, sending, by the terminal device, a first message to a second network device, to request to retransmit the first data packet, and receiving, by the terminal device, the first data packet from the second network device.

公开(公告)号：US11800470B2

公开(公告)日：2023-10-24

申请号：US16784769

申请日：2020-02-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bingzhao Li ,  Nathan Edward Tenny

IPC: H04W56/00 ,  H04L1/00 ,  H04L5/00 ,  H04B17/309 ,  H04W24/10 ,  H04W28/20

CPC classification number: H04W56/0015 ,  H04L1/0026 ,  H04L5/0051 ,  H04W24/10 ,  H04W28/20

Abstract: A measurement gap parameter configuration method, a reference signal measurement method, and a device are disclosed. The measurement gap configuration method includes: determining, by a network device, that a first condition is satisfied; and configuring, by the network device, one or more measurement gap parameters for a terminal device, where the measurement gap parameter is used by the terminal device to measure a to-be-measured reference signal.

公开(公告)号：US20230337102A1

公开(公告)日：2023-10-19

申请号：US18340851

申请日：2023-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zonghui Xie ,  Lei Chen ,  Bingzhao Li

IPC: H04W36/36 ,  H04W48/18 ,  H04W36/30

CPC classification number: H04W36/36 ,  H04W48/18 ,  H04W36/302

Abstract: This application provides a cell selection method and apparatus, to resolve abnormal wireless communication between a terminal device and a selected cell. The method includes: A terminal device may obtain a first offset of at least one first to-be-selected cell. The first offset is used to determine a cell selection parameter of the at least one first to-be-selected cell. The cell selection parameter includes a cell selection receive level value Srxlev and/or a cell selection receive quality value Squal. Next, the terminal device may determine, based on uplink capability as to whether the terminal device can perform uplink enhancement, the cell selection parameter of the at least one first to-be-selected cell by using the first offset. Then, the terminal device may determine a first cell from the at least one first to-be-selected cell based on the cell selection parameter.

公开(公告)号：US11627623B2

公开(公告)日：2023-04-11

申请号：US16874117

申请日：2020-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Hu ,  Bingzhao Li ,  Jing Chen ,  Tingting Geng

IPC: H04W76/18 ,  H04W76/34 ,  H04W12/04 ,  H04W12/10

Abstract: A connection resume request method includes generating, by a terminal, a new access stratum key; sending, by the terminal to a target base station, a connection resume request message requesting to resume a radio resource control (RRC) connection; receiving, by the terminal, a connection resume rejection message from the target base station, wherein the connection resume rejection message indicates that the resuming of the RRC connection is rejected; and resuming, by the terminal, the new access stratum key to a previous access stratum key, wherein the previous access stratum key is an access stratum key that is used, before the apparatus enters an inactive state, by the terminal and the source base station.