公开(公告)号：US11304107B2

公开(公告)日：2022-04-12

申请号：US16764299

申请日：2018-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuting Yao ,  Haibo Xu ,  Bingzhao Li ,  Zhenzhen Cao ,  Jian Wang

IPC: H04W4/00 ,  H04W36/08 ,  H04W76/19 ,  H04W80/02 ,  H04W80/08 ,  H04W12/0431 ,  H04W92/10

Abstract: When a PDCP entity over a UM DRB is re-established, or when a cell handover occurs and a PDCP entity over a UM DRB uses a key used before the handover, the PDCP entity determines a first SDU, where the first SDU is an SDU that is associated with a sequence number by the PDCP entity but whose corresponding data has not been transmitted through an air interface; and delivers a PDU corresponding to the first SDU to an RLC entity.

公开(公告)号：US20220060974A1

公开(公告)日：2022-02-24

申请号：US17298399

申请日：2019-11-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongbo Zeng ,  Haibo Xu ,  Hui Jin ,  Le Jin ,  Zhiqiang Song ,  Huiyun Dong

IPC: H04W48/16 ,  H04W48/20 ,  H04W74/08

Abstract: A PRACH resource selection method includes a terminal device receiving N synchronization signal blocks (SSBs) from an access device, determining a target PRACH resource selection manner based on at least one of a service type, a type of a trigger event that triggers random access, a signal strength change status of a reference signal received by the terminal device, mobility of the terminal device, and historical information, and selecting, in the determined selection manner, a target PRACH resource from N PRACH resources corresponding to the N SSBs.

公开(公告)号：US11259234B2

公开(公告)日：2022-02-22

申请号：US16638020

申请日：2017-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Xu ,  Nathan Edward Tenny ,  Yiru Kuang ,  Jian Wang

IPC: H04W40/34 ,  H04W40/10 ,  H04W40/28 ,  H04W52/08 ,  H04W52/54 ,  H04W72/04 ,  H04W72/14 ,  H04W88/02 ,  H04W88/08

Abstract: A path switching method and a related device, where the method includes receiving, by a base station, a first message from a first user equipment requesting to switch the first user equipment from a non-direct path for communicating with the base station using a second user equipment to a direct path communicating with the base station, and sending, by the base station, a second message to the first user equipment instructing the first user equipment to perform path switching. The second message includes at least one of a timing advance, a closed-loop power control value or an uplink grant configuration.

公开(公告)号：US20210329507A1

公开(公告)日：2021-10-21

申请号：US17273475

申请日：2019-02-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuting Yao ,  Haibo Xu ,  Jian Wang

IPC: H04W36/00

Abstract: A measurement configuration determining method includes receiving, by a terminal device, a first message from a network device. The first message includes a first relationship, the first relationship indicates an association relationship between an index of a reference signal and measurement configuration information. The measurement configuration information is adapted for the terminal device to perform a measurement and the terminal device determines the measurement configuration information based on the index.

公开(公告)号：US11147002B2

公开(公告)日：2021-10-12

申请号：US16634930

申请日：2017-08-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chuting Yao ,  Haibo Xu ,  Jian Wang

IPC: H04W76/00 ,  H04W36/00 ,  H04L12/939 ,  H04W88/04

Abstract: A data transmission method and related devices. The method includes: handing over a first terminal device from a second terminal device to a network device; receiving, by the first terminal device, a first packet data convergence protocol (PDCP) data packet sent by the network device; and if the first PDCP data packet is a target PDCP data packet, submitting, by the first terminal device, a second PDCP data packet, where the target PDCP data packet is a PDCP data packet sent by the network device based on a transmission status report, and the transmission status report is a status report sent by the first terminal device or the second terminal device to the network device.

公开(公告)号：US20200374864A1

公开(公告)日：2020-11-26

申请号：US16637191

申请日：2017-08-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yiru Kuang ,  Haibo Xu ,  Nathan Edward Tenny

IPC: H04W72/04 ,  H04W8/26

Abstract: A resource allocation method includes sending, by the first device, a first message to the second device, where the first message is used to request a sidelink resource for the first device to send data to a third device, and the first message includes first identification information of the third device. The method further includes receiving, by the first device, a second message sent by the second device, where the second message is used to indicate a target sidelink resource for the first device to send the data to the third device. The method further includes using, by the first device, the target sidelink resource to send the data to the third device.

公开(公告)号：US20200344835A1

公开(公告)日：2020-10-29

申请号：US16925198

申请日：2020-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchen Wang ,  Zhenzhen Cao ,  Haibo Xu ,  Xuelong Wang

IPC: H04W76/19 ,  H04W76/28 ,  H04W72/04

Abstract: This application provides a communication method, a communications device, and a network device. When a beam failure occurs in a secondary cell of the communications device, the communications device sends a beam failure recovery request to the network device by using a PUCCH or a MAC CE, and determines an active state time of DRX based on a status of the beam failure recovery request. The communications device may also determine a stopping time of an uplink retransmission timer based on a running status of a configured grant timer, where the DRX of the communications device is in an active state when the uplink retransmission timer works; and monitors a PDCCH when the DRX of the communications device is in the active state.

公开(公告)号：US20200344621A1

公开(公告)日：2020-10-29

申请号：US16925176

申请日：2020-07-09

Applicant: Huawei technologies Co., Ltd.

Inventor： Bin Xu ,  Zhenzhen Cao ,  Haibo Xu ,  Bingzhao Li ,  Xuelong Wang

IPC: H04W24/04 ,  H04W72/04 ,  H04W76/27 ,  H04B7/06 ,  H04W28/02

Abstract: This application provides a communication method and a communications device. The method includes: determining, by a terminal device, a cell in which a beam failure occurs; and sending, by the terminal device, first indication information to a network device, where the first indication information is used to indicate the cell in which the beam failure occurs.