公开(公告)号：US20220217601A1

公开(公告)日：2022-07-07

申请号：US17655643

申请日：2022-03-21

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W36/08 ,  H04W76/19 ,  H04W80/02 ,  H04W80/08 ,  H04W12/0431

Abstract: This application provides a data processing method and apparatus, and a computer storage medium. When a PDCP entity over a UM DRB is re-established, or when a cell handover occurs and the 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. Data corresponding to the first SDU is redelivered, to avoid a data packet loss caused by preprocessing of the PDCP entity.

公开(公告)号：US20220182892A1

公开(公告)日：2022-06-09

申请号：US17652540

申请日：2022-02-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Chen ,  Bingzhao Li ,  Xun Tang ,  Hong Wang

IPC: H04W36/00 ,  H04W36/32 ,  H04W36/08

Abstract: A first network device determines a first cell. The first network device sends a first message, where the first message includes an identifier of the first cell, and the identifier of the first cell is used to indicate a terminal device to perform cell reestablishment.

公开(公告)号：US11337037B2

公开(公告)日：2022-05-17

申请号：US16664025

申请日：2019-10-25

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Bingzhao Li ,  Yongqiang Gao ,  Jian Zhang ,  Wei Quan

IPC: H04W4/06 ,  H04L1/18 ,  H04W72/00 ,  H04W72/04 ,  H04W72/12

Abstract: The present disclosure discloses a multicast service reading method. The method includes: determining, by user equipment UE, multicast control channel MCCH configuration information, where the MCCH configuration information includes a multicast control channel identifier MCCH-RNTI and MCCH sending period information; determining, by the UE, MCCH sending time information according to the MCCH sending period information; reading, by the UE, an MCCH message according to the MCCH sending time information by using the MCCH-RNTI, where the MCCH message includes configuration information of a multicast service; and reading, by the UE, the multicast service according to the configuration information of the multicast service. Embodiments of the present disclosure further provide a multicast service sending method and a related device. The embodiments of the present disclosure help reduce waste of an MBSFN subframe.

公开(公告)号：US11304054B2

公开(公告)日：2022-04-12

申请号：US16579368

申请日：2019-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Chai ,  Jian Zhang ,  Bingzhao Li ,  Wei Quan

IPC: H04W76/25 ,  H04W76/27 ,  H04W12/10 ,  H04W12/041 ,  H04W12/03

Abstract: A communication method and a device, the method including obtaining, by a terminal device, a security key, where the terminal device performs the obtaining while the terminal device is in a state in which the terminal device has disconnected a radio resource control (RRC) connection from a first network device, and in which the terminal device retains context information for a context, in the first network device, of the terminal device, and sending, by the terminal device, a first message to a second network device, where the first message includes an identifier of the terminal device and at least one of encrypted uplink data or encrypted signaling, the at least one of encrypted uplink data or encrypted signaling is encrypted by using the security key, and where the second network device is different from the first network device.

公开(公告)号：US20220078673A1

公开(公告)日：2022-03-10

申请号：US17527153

申请日：2021-11-15

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Bingzhao Li ,  Wei Quan ,  Jian Zhang ,  Weihua Liu

IPC: H04W36/00 ,  H04W76/20 ,  H04W76/27 ,  H04W48/10 ,  H04W52/02

Abstract: Embodiments of the present invention disclose a mobility management method, user equipment, and a base station. The mobility management method may include: receiving, by the user equipment (UE) in a connected state, a source identifier of the UE from a first base station, where the source identifier is used to uniquely identify the UE in the first base station; entering, by the UE, a low-overhead state after satisfying a low-overhead activation condition; storing, by the UE in the low-overhead state, a connection context of the UE in the connected state, and camping on a cell according to a cell reselection criterion in a moving process; and reporting, by the UE when satisfying a first preset condition, the source identifier to a second base station to which a second cell belongs, where the second cell is a serving cell on which the UE currently camps.

公开(公告)号：US11265770B2

公开(公告)日：2022-03-01

申请号：US16675169

申请日：2019-11-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingzhao Li ,  Wei Quan ,  Jian Zhang ,  Li Chai

IPC: H04W36/00 ,  H04W36/08

Abstract: A communication method and apparatus are provided. The method can be performed by a first access network device. Under the method, first data transmission information sent by a terminal device can be received. The first data transmission information carries a first identifier and uplink data, and the first identifier includes an identifier identifying an anchor access network device and an identifier identifying the terminal device in the anchor access network device. First processing can be performed on the received uplink data based on channel configuration information of the terminal device. The first processing includes at least one of: physical layer processing, medium access control layer processing, or radio link control layer processing. The first processing includes no decryption and/or integrity check. Second data transmission information can be sent. The second data transmission information carries the first identifier and uplink data obtained after the first processing.

公开(公告)号：US11239926B2

公开(公告)日：2022-02-01

申请号：US16905536

申请日：2020-06-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bingzhao Li ,  Wei Quan ,  Zhenzhen Cao ,  Xuelong Wang

IPC: H04B7/04 ,  H04B17/309 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04L27/26 ,  H04W24/10

Abstract: This application provides a measurement method, a terminal device, and an access network device. The measurement method includes: measuring, by a terminal device, signal quality of a plurality of beams, wherein the signal quality of the plurality of beams is obtained by using synchronization signal blocks, the signal quality of the plurality of beams comprises signal quality of a same beam at different moments, and the plurality of beams belong to one cell; and obtaining, by the terminal device, signal quality of the cell based on the signal quality of the plurality of beams. In this way, cell measurement based on a synchronization signal is implemented, and the signal quality of the cell obtained based on the signal quality of the plurality of beams at the different moments is more accurate.

公开(公告)号：US20210377849A1

公开(公告)日：2021-12-02

申请号：US17400753

申请日：2021-08-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin Xu ,  Bingzhao Li ,  Lei Chen ,  Zhenzhen Cao ,  Xuelong Wang

IPC: H04W48/18 ,  H04W24/10 ,  H04W76/30 ,  H04W36/08

Abstract: This application provides a network selection method, a network device, and a terminal device. The network selection method mainly includes: A first network device sends a first message to a terminal device. The first message includes a message that indicates the terminal device to measure a cell of a first-type network, the first-type network is a high-priority network selectable for the terminal device, and a network provided by the first network device does not belong to the first-type network.

公开(公告)号：US11178663B2

公开(公告)日：2021-11-16

申请号：US16271479

申请日：2019-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingzhao Li ,  Hong Wang ,  Li Chen ,  Wei Quan ,  Jian Zhang

IPC: H04W72/04 ,  H04L1/18 ,  H04L1/08 ,  H04W4/70 ,  H04W4/06 ,  H04L1/00

Abstract: Embodiments of the present invention relate to the communications field, and disclose a data transmission method and device to resolve a problem that a success rate of receiving data by an MTC terminal is relatively low after an SC-PTM technology is introduced. A specific solution is as follows: A base station device sends first control information to a terminal device, where the first control information is used to control repeated transmission of multicast service data; and the base station device sends the multicast service data to the terminal device according to the first control information. The present invention is used in a data transmission process.

公开(公告)号：US11172465B2

公开(公告)日：2021-11-09

申请号：US16580699

申请日：2019-09-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Chen ,  Bingzhao Li ,  Li Chai

IPC: H04W16/28 ,  H04W68/02 ,  H04W72/04 ,  H04W52/02 ,  H04B7/06 ,  H04B7/185

Abstract: This application provides an information transmission method and an apparatus and relates to the field of communications technologies, to resolve a problem of power waste caused when a communications device blindly monitors downlink control information in all monitoring occasions. The method includes: determining, by a communications device, information about a target beam; determining a target monitoring occasion based on the information about the target beam and a mapping relationship between information about a beam and a monitoring occasion, where the target monitoring occasion is in a system information window, and the system information window is used for OSI; and monitoring downlink control information in the target monitoring occasion.