公开(公告)号：US20230114120A1

公开(公告)日：2023-04-13

申请号：US18066044

申请日：2022-12-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunhua You ,  Xiaoying Xu ,  Qinghai Zeng

IPC: H04W40/12 ,  H04W28/02

Abstract: This application discloses a communication method and apparatus. The method includes: A first access network device receives first uplink data from a terminal device; and sends a request message to a core network device, where the request message requests path switching of user plane data of the terminal device, the request message includes first information, and the first information indicates a first PDU session corresponding to the first uplink data.

公开(公告)号：US11576089B2

公开(公告)日：2023-02-07

申请号：US17119633

申请日：2020-12-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoying Xu ,  Jing Chen

IPC: H04L29/06 ,  H04W36/00 ,  H04W12/041 ,  H04W12/108 ,  H04W12/0431 ,  H04B1/403 ,  H04W88/06 ,  H04L9/14 ,  H04W36/08 ,  H04L9/40 ,  H04W48/18 ,  H04W88/08

Abstract: A solution for security negotiation during handover of a user equipment (UE) between different radio access technologies is provided. In the solution, the UE receives non-access stratum (NAS) security information and access stratum (AS) security information which are selected by the target system and then performs security negotiation with the target system according to the received NAS security information and AS security information. As such, the UE may obtain the key parameter information of the NAS and AS selected by a Long Term Evolution (LTE) system and perform security negotiation with the LTE system when the UE hands over from a different system, such as a Universal Terrestrial Radio Access Network (UTRAN), to the LTE system.

公开(公告)号：US11564099B2

公开(公告)日：2023-01-24

申请号：US16859699

申请日：2020-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Hu ,  Bingzhao Li ,  Xiaoying Xu ,  Jing Chen ,  He Li

IPC: H04L29/06 ,  H04W12/106 ,  H04W76/27 ,  H04L9/14 ,  H04W36/08 ,  H04W12/037 ,  H04W12/041

Abstract: This application provides an RRC connection resume method and apparatus. In the method, when a terminal moves to a target base station, the target base station may reselect, based on a capability and a requirement of the target base station, a first encryption algorithm and a first integrity protection algorithm that are used when the target base station communicates with the terminal, and send the first encryption algorithm and the first integrity protection algorithm to the terminal. On one hand, a security algorithm used for communication between the terminal and the target base station is flexibly selected. On the other hand, because the base station connected to the terminal changes, communication security can be improved by using a new encryption algorithm and integrity protection algorithm.

公开(公告)号：US11510175B2

公开(公告)日：2022-11-22

申请号：US17003086

申请日：2020-08-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qinghai Zeng ,  Xiaoying Xu ,  Tingting Geng

IPC: H04W68/00 ,  H04W76/30 ,  H04W76/11 ,  H04W76/27 ,  H04W36/08 ,  H04W80/02 ,  H04W80/08

Abstract: This application relates to the field of communications technologies, and discloses a communication method and a communication apparatus, to reduce service delay due to uplink data cannot be directly sent by a terminal when the terminal is in an inactive state. The method in this application includes: receiving a first message from a first access network device; then releasing or suspending a configured dedicated signaling radio bearer SRB and resetting protocol entities corresponding to a configured data radio bearer DRB. The first message is used to indicate to a terminal to enter a radio resource control (RRC) inactive state, and the first message carries an identifier of the terminal in the radio resource control (RRC) inactive state and radio access network notification area (RNA) information.

公开(公告)号：US11412432B2

公开(公告)日：2022-08-09

申请号：US16580004

申请日：2019-09-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Le Yan ,  Hongping Zhang ,  Qinghai Zeng ,  Min Xu ,  Wenjie Peng ,  Xiaoying Xu

IPC: H04W36/00 ,  H04W36/08 ,  H04W36/30 ,  H04W76/11 ,  H04W74/08

Abstract: This application provides a communication method, a network device, and a terminal. The communication method includes: determining, by a first network device, at least one candidate target cell and first configuration information, where the first configuration information is used to trigger a terminal to determine one of the at least one candidate target cell as a to-be-handed-over-to cell; and sending, by the first network device, a first message to the terminal, where the first message includes first cell indication information and the first configuration information, and the first cell indication information is used to indicate the at least one candidate target cell.

公开(公告)号：US11284346B2

公开(公告)日：2022-03-22

申请号：US16503124

申请日：2019-07-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoying Xu ,  Qinghai Zeng ,  Qufang Huang ,  Xiaoxiao Zheng

IPC: H04W52/02 ,  H04W76/11 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04L27/26 ,  H04W28/02 ,  H04W52/36 ,  H04W80/02

Abstract: Embodiments of this application provide a data transmission method and apparatus. The method includes: receiving data sent by a terminal in an inactive state, where the data includes to-be-sent data sent by the terminal and identification information of the terminal; determining an anchor base station of the terminal based on the identification information; and sending the data to the anchor base station, so that the anchor base station sends the data to a core-network device. The uplink data of the terminal is forwarded to the anchor base station by using a serving base station and through an interaction between the anchor base station and the serving base station that currently provides an air interface resource for the terminal, and is then transmitted to a core network.

公开(公告)号：US11178538B2

公开(公告)日：2021-11-16

申请号：US16449709

申请日：2019-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui Wang ,  Mingzeng Dai ,  Haiyan Luo ,  Xiaoying Xu ,  Tingting Geng ,  Hongzhuo Zhang

IPC: H04W4/00 ,  H04W8/24 ,  H04W74/08 ,  H04W24/02

Abstract: This application provides a transmission method for retrieving old context of a terminal device, the method includes: a first network node sends a first message to a first system, where the first message is received from a terminal device and includes CRNTI allocated previously by the first network node for the terminal device; the first system sends a second message to the first network node, the second message comprises identification information of the terminal device which is in association with old context information of the terminal device that is stored at the first network node, and is used by the first network node to retrieve the old context information of the terminal device.

公开(公告)号：US20210314977A1

公开(公告)日：2021-10-07

申请号：US17351435

申请日：2021-06-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoying Xu ,  Qufang Huang ,  Chong Lou ,  Qinghai Zeng ,  Zhenzhen Cao

IPC: H04W72/12 ,  H04W28/24 ,  H04W28/02 ,  H04W80/02

Abstract: Embodiments of this application provide a communication method, apparatus, a terminal, a network device, and a storage medium. After the terminal receives, from the network device, indication information used to indicate the terminal to report traffic pattern information of a first logical channel, a first PDU session, a first application, a first radio bearer, or a first QoS flow, the terminal reports the traffic pattern information of the first logical channel, the first PDU session, the first application, the first radio bearer, or the first QoS flow based on the indication information. In this manner, the terminal reports, based on the indication, the traffic pattern information of only the logical channel, the PDU session, the service, the radio bearer, or the QoS flow that is indicated by the network device.

公开(公告)号：US20210219173A1

公开(公告)日：2021-07-15

申请号：US17213970

申请日：2021-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoying Xu ,  Qufang Huang ,  Qinghai Zeng

IPC: H04W28/06 ,  H04W72/04 ,  H04W28/02

Abstract: This application provides a communication method and an apparatus for Ethernet data. Embodiments of this application provide a new radio network temporary identifier RNTI (for example, a first RNTI), and the first RNTI is an RNTI for an Ethernet packet. The method includes: A terminal device receives, from a network device, downlink control information DCI scrambled by using the first RNTI, and receives the Ethernet packet from the network device on a time-frequency resource indicated by the DCI.

公开(公告)号：US11012178B2

公开(公告)日：2021-05-18

申请号：US15821201

申请日：2017-11-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoying Xu ,  Xiaoxiao Zheng ,  Qufang Huang

IPC: H04W72/12 ,  H04W72/04 ,  H04W56/00 ,  H04W28/00 ,  H04L5/00 ,  H04L27/26 ,  H04L1/00

Abstract: Embodiments of the present invention provide a downlink information transmission method, a base station, and user equipment. The method includes: sending, by a first base station, downlink information by using a first period according to a first pattern; sending, by the first base station, the downlink information by using a second period according to the first pattern, or by using the first period according to a second pattern, or by using a second period according to a second pattern when the first base station determines to change a transmission period and/or a transmission pattern of the downlink information, where the second period is less than the first period, and OFDM symbols occupied by the second pattern are more than OFDM symbols occupied by the first pattern. The present invention is applicable to the field of communications technologies.