公开(公告)号：US11076334B2

公开(公告)日：2021-07-27

申请号：US16574961

申请日：2019-09-18

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Mingzeng Dai ,  Yi Guo ,  Qinghai Zeng ,  Hongping Zhang

IPC: H04W36/38 ,  H04W36/00 ,  H04W36/28

Abstract: Embodiments of the present invention provide a data forwarding method, device, and communications system, which relate to the field of communications and can achieve accuracy and continuity of data transmission during carrier aggregation for cells between base stations. The method includes: sending, by a primary base station, a first message to a secondary base station, where the first message is used to instruct the secondary base station to perform handover, and the first message includes an identifier of a target base station; confirming, by the primary base station, that the secondary base station forwards data to the target base station; and sending, by the primary base station, a second message to a user equipment, where the second message is used to instruct the user equipment to acquire the data from the target base station. The embodiments of the present invention are used for data forwarding.

公开(公告)号：US11026091B2

公开(公告)日：2021-06-01

申请号：US16220711

申请日：2018-12-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongping Zhang ,  Le Yan ,  Mingzeng Dai ,  Qinghai Zeng ,  Yi Guo

IPC: H04W12/106 ,  H04W36/34 ,  H04W36/06 ,  H04W36/00 ,  H04W12/30 ,  H04W12/041 ,  H04W76/15 ,  H04W88/02

Abstract: The present application provides a data transmission method in a wireless communication system. A first security parameter indication is introduced into uplink data on a first bearer, and a base station can determine, based on the first security parameter indication in the uplink data, whether first security processing of the uplink data is performed using a first security parameter or a second security parameter, so as to select a corresponding security parameter to perform second security processing; and a second security parameter indication is introduced into downlink data, and UE can determine, based on the second security parameter indication in the downlink data, whether the first security processing of the data is performed using the first security parameter or the second security parameter, so as to select a corresponding security parameter to perform the second security processing.

公开(公告)号：US20210112614A1

公开(公告)日：2021-04-15

申请号：US17104633

申请日：2020-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingting Geng ,  Yinghao Jin ,  Hongping Zhang ,  Le Yan

IPC: H04W76/15 ,  H04W76/11 ,  H04W76/19 ,  H04W48/18

Abstract: Embodiments of this application provide a communication method, a communications apparatus, and a storage medium. The communication method includes: sending, by a new master network device, a request to an original master network device, to request context information of a terminal device on the original master network device and an original secondary network device; and receiving the context information of the terminal device on the original master network device and the original secondary network device from the original master network device. This application can effectively simplify implementation steps of resuming a multi-connectivity mode by the terminal device, reduce signaling procedures, and shorten a delay, thereby improving network transmission efficiency.

公开(公告)号：US20210014712A1

公开(公告)日：2021-01-14

申请号：US17039297

申请日：2020-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Zhang ,  Qinghai Zeng ,  Hongping Zhang

IPC: H04W24/08 ,  H04W24/02 ,  H04W36/00 ,  H04W72/04 ,  H04W72/12

Abstract: Embodiments of the present invention disclose a measurement method, including: acquiring, by user equipment, a status of using a target unlicensed frequency band by a target radio access technology RAT; and selecting, by the user equipment, a corresponding measurement mode according to the usage status to measure a radio condition of the target unlicensed frequency band. The embodiments of the present invention further disclose user equipment, a network device, and a system.

公开(公告)号：US10863569B2

公开(公告)日：2020-12-08

申请号：US16151109

申请日：2018-10-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongping Zhang ,  Qufang Huang ,  Le Yan ,  Mingzeng Dai

IPC: H04W76/19 ,  H04W36/30 ,  H04W36/00 ,  H04W76/18 ,  H04W76/11 ,  H04W76/27 ,  H04W72/04 ,  H04W88/16 ,  H04L5/00

Abstract: Embodiments of the present disclosure provide a data transmission method, user equipment, and an access network device. UE transmits air interface data to an access network device by using a serving cell set including at least two core serving cells that can independently serve the UE to transmit data, and initiates an RRC connection re-establishment process to the access network device only when detecting that all core serving cells in the serving cell set are unavailable. Data transmission is performed by using an available serving cell to the greatest extent. In other words, data transmission can be performed by using any available core serving cell, to reduce the dependence of data transmission between serving cells and minimize possibility of data transmission interruption, thereby improving data transmission robustness.

公开(公告)号：US20200374972A1

公开(公告)日：2020-11-26

申请号：US16991824

申请日：2020-08-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingting Geng ,  Hongping Zhang ,  Qinghai Zeng

IPC: H04W76/30 ,  H04W76/27 ,  H04W28/06 ,  H04W52/02

Abstract: Embodiments of this application provide a communication method and a communications system. The method includes: receiving, by a second network device from a first network device, information used to indicate that a terminal initiates a radio access network notification area update (RNAU), generating, by the second network device based on the information, a radio resource control release message on which security protection has been performed, and sending, to the first network device, the radio resource control release message on which the security protection has been performed.

公开(公告)号：US20200374938A1

公开(公告)日：2020-11-26

申请号：US16989256

申请日：2020-08-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Le Yan ,  Qinghai Zeng ,  Hongping Zhang

IPC: H04W74/08 ,  H04W36/30 ,  H04W36/06 ,  H04B7/06

Abstract: Embodiments of this application provide a communication method and a communications apparatus. The method includes: receiving identification information of N beams of a target cell and random access channel configurations of M beams in the N beams, where N and M are positive integers; and determining a beam for accessing based on signal quality or signal strength of L beams in the N beams, the identification information of the N beams, and the random access channel configurations of the M beams, where L is a nonnegative integer.

公开(公告)号：US20200344633A1

公开(公告)日：2020-10-29

申请号：US16928868

申请日：2020-07-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongping Zhang ,  Qinghai Zeng

IPC: H04W24/10 ,  H04W8/24 ,  H04L5/00 ,  H04W72/04 ,  H04W36/00

Abstract: This application provides a communication method and a communications apparatus. The method includes: sending capability information to a network device, where the capability information includes first capability information corresponding to a first frequency range and second capability information corresponding to a second frequency range, the first capability information and the second capability information are independent information, the first capability information includes first indication information used to indicate whether a band in the first frequency range requires a measurement gap, and the second capability information includes second indication information used to indicate whether a band in the second frequency range requires a measurement gap; receiving measurement gap configuration information determined based on the capability information, where the measurement gap configuration information is information used to configure the measurement gap; and performing measurement based on the measurement gap configuration information.

公开(公告)号：US20200322860A1

公开(公告)日：2020-10-08

申请号：US16910541

申请日：2020-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Le Yan ,  Yanglai Shuai ,  Hongping Zhang ,  Qinghai Zeng

IPC: H04W36/18 ,  H04W80/08 ,  H04W36/08 ,  H04W80/02 ,  H04L1/16 ,  H04W76/38 ,  H04W76/27

Abstract: Embodiments of this application disclose a communication method and a communications apparatus. A source base station instructs a terminal to hand over from the source base station to a target base station, and sends, to the terminal, configuration information of a second connection required for communication between the terminal and the target base station. The terminal maintains a first connection for communication with the source base station, and establishes the second connection for communication with the target base station based on the configuration information of the second connection. The solutions in the embodiments of this application reduces latency in a handover process.

公开(公告)号：US10798596B2

公开(公告)日：2020-10-06

申请号：US16299334

申请日：2019-03-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Zhang ,  Qinghai Zeng ,  Hongping Zhang

IPC: H04W24/02 ,  H04W24/08 ,  H04W36/00 ,  H04W72/04 ,  H04W72/12 ,  H04W36/14 ,  H04W48/18

Abstract: Embodiments of the present invention disclose a measurement method, including: acquiring, by user equipment, a status of using a target unlicensed frequency band by a target radio access technology RAT; and selecting, by the user equipment, a corresponding measurement mode according to the usage status to measure a radio condition of the target unlicensed frequency band. The embodiments of the present invention further disclose user equipment, a network device, and a system. In the present invention, the user equipment can accurately measure the radio condition of the unlicensed frequency band, so as to provide reference information for the network device to schedule the user equipment.