公开(公告)号：US20230247401A1

公开(公告)日：2023-08-03

申请号：US18295327

申请日：2023-04-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haifeng YU ,  Bingzhao LI ,  Zhenzhen CAO

IPC: H04W4/50 ,  H04W8/22 ,  H04W72/54 ,  H04W72/20 ,  H04W68/00

CPC classification number: H04W4/50 ,  H04W8/22 ,  H04W72/54 ,  H04W72/20 ,  H04W68/005

Abstract: A communication method and apparatus, so that a terminal device can flexibly determine, based on at least one of an identifier of a multicast service, a probability of each multicast configuration information obtaining manner, level information of the terminal device, indication information of an obtaining manner of multicast configuration information, information used to indicate that data of the multicast service is to be sent, or signal quality information, a manner for obtaining multicast configuration information of each multicast service, instead of obtaining configuration information of different multicast services in a fixed manner.

公开(公告)号：US20230224936A1

公开(公告)日：2023-07-13

申请号：US18180308

申请日：2023-03-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haifeng YU ,  Bingzhao LI ,  Lei CHEN ,  Tingyu XIN

IPC: H04W72/51 ,  H04W72/0457 ,  H04W68/02 ,  H04W76/20

CPC classification number: H04W72/51 ,  H04W72/0457 ,  H04W68/02 ,  H04W76/20

Abstract: Embodiments of the present invention provide a communication method and apparatus. A network device determines, based on first capability information, a bandwidth part supported by a first terminal device, and sends a first paging message on a target bandwidth part, where the bandwidth part is used to carry paging or another message. The target bandwidth part matches the bandwidth part supported by the first terminal device. Therefore, compared with attempting to send the first paging message by the network device on a plurality of bandwidth parts, sending the first paging message on the target bandwidth part can effectively reduce a quantity of times of unnecessary paging sending by the network device, so as to reduce a quantity of wasted paging resources. This can effectively reduce a quantity of times of unnecessary listening of the first terminal device, reduce energy consumption of the terminal device, and improve paging efficiency.

公开(公告)号：US20230209316A1

公开(公告)日：2023-06-29

申请号：US18178685

申请日：2023-03-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haifeng YU ,  Bingzhao LI ,  Lei CHEN

IPC: H04W4/06 ,  H04L5/00

CPC classification number: H04W4/06 ,  H04L5/0053

Abstract: A communication method includes receiving, by a terminal device, first indication information. The first indication information is useable to indicate to the terminal device to disable a feedback function corresponding to a multimedia broadcast multicast service. The method further comprises disabling, by the terminal device, the feedback function corresponding to the multimedia broadcast multicast service.

公开(公告)号：US20230099930A1

公开(公告)日：2023-03-30

申请号：US17993572

申请日：2022-11-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tingyu XIN ,  Yan WANG ,  Zhenzhen CAO ,  Bingzhao LI ,  Lei CHEN

IPC: H04W76/10 ,  H04W4/06 ,  H04W4/12

Abstract: A communications method and a communications apparatus. For a radio bearer that carries a multicast service, a downlink user plane tunnel is established between a first access network node and a second access network node. A data packet of the multicast service is transmitted through the downlink user plane tunnel to enable the multicast service to be transmitted in a CU-DU architecture. A unicast tunnel is also established to transmit a data packet of the multicast service that is sent in a unicast mode. In this way, the first access network node is able to transmit the data packet of the multicast service to the second access network node on the unicast tunnel in the unicast mode.

公开(公告)号：US20230092744A1

公开(公告)日：2023-03-23

申请号：US17994050

申请日：2022-11-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin XU ,  Bingzhao LI ,  Lei CHEN

IPC: H04W36/00 ,  H04W12/47

Abstract: In a key obtaining method and an apparatus, a first core network device obtains a first key, and the first core network device performs derivation based on the first key to obtain a second key and a third key. The second key is for performing security processing on control plane signaling of a terminal device, and the third key is for performing security processing on user plane data of the terminal device. The first core network device sends the second key to a control plane entity of a first access network device, and sends the third key to a user plane entity of the first access network device.

公开(公告)号：US20230038417A1

公开(公告)日：2023-02-09

申请号：US17965032

申请日：2022-10-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hong WANG ,  Bingzhao LI ,  Zonghui XIE ,  Lei CHEN ,  Baokun SHAN

IPC: H04W76/28 ,  H04W68/00 ,  H04W52/02

Abstract: This application provides a data transmission method and apparatus. The method includes: receiving downlink data, where the downlink data is used to be sent to a terminal device; receiving first information from a second network device, where the first information is used to determine a time point for sending the downlink data to the second network device; and sending the downlink data to the second network device based on the first information, to avoid directly sending the downlink data to the second network device after receiving the downlink data, thereby relieving storage burden of the second network device.

公开(公告)号：US20230012998A1

公开(公告)日：2023-01-19

申请号：US17947651

申请日：2022-09-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin XU ,  Bingzhao LI

IPC: H04L1/16 ,  H04W76/19 ,  H04W36/08

Abstract: A communication method, an access network device, a terminal device, and a core network device where the terminal device is handed over from a first access network device to a second access network device, the second access network device learns of first service progress of the first access network device based on a first sequence number of a data packet forwarded by the first access network device, without introducing additional progress exchange information between the two access network devices.

公开(公告)号：US20220417985A1

公开(公告)日：2022-12-29

申请号：US17902003

申请日：2022-09-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei CHEN ,  Bingzhao LI ,  Hong WANG ,  Zonghui XIE

IPC: H04W74/08 ,  H04W74/04 ,  H04W52/36

Abstract: A communication method includes receiving a first message from a first network device, and sending a second message to a terminal device. The first message includes random access related information. The second message indicates a first random access type that is usable in a random access procedure. The first random access type is a 2-step random access channel (RACH) or a 4-step RACH. The random access related information includes at least one of random access indication information useable to indicate the first random access type, random access capability information including information of a random access type supported by the terminal device, random access mode information useable to indicate a contention-based random access mode or contention-free random access mode in the random access procedure, an early downlink-data transmission indication useable to indicate to transmit a downlink data packet in the random access procedure, or a size of the downlink data packet.

公开(公告)号：US20220353756A1

公开(公告)日：2022-11-03

申请号：US17868535

申请日：2022-07-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bingzhao LI ,  Yan WANG ,  Wei QUAN ,  Jian ZHANG ,  Xiaodong YANG

IPC: H04W36/00 ,  H04W76/20 ,  H04W36/12 ,  H04W36/24

Abstract: Embodiments of the present invention disclose a communication method, an apparatus, and a system. The communication method includes: receiving, by a terminal device, a context identifier sent by a second radio access network device, and sending, to a first radio access network device, a first message that includes the context identifier; receiving, by a core network device, a second message sent by the first radio access network device, and sending, to the second radio access network device, a message that includes the context identifier; and receiving, by the core network device, context information of the terminal device that is sent by the second radio access network device, and sending the context information to the first radio access network device. Therefore, communication between the first radio access network device and the second radio access network device is ensured, and working efficiency is improved.

公开(公告)号：US20220248192A1

公开(公告)日：2022-08-04

申请号：US17724999

申请日：2022-04-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hong WANG ,  Bingzhao LI ,  Bin XU ,  Lei CHEN ,  Xuelong WANG

IPC: H04W4/18 ,  H04W4/06

Abstract: This application provides a communication method, apparatus, and system. The communication method includes: a centralized unit receives a data packet sent in a multicast manner. The centralized unit generates a PDCP data unit based on the data packet, where the PDCP data unit includes the data packet and a PDCP header. The centralized unit sends the PDCP data unit to a distributed unit. The distributed unit receives the PDCP data unit from the centralized unit, where the PDCP data unit includes the PDCP header, a synchronization protocol header, and a payload. The distributed unit generates a MAC data unit, where the MAC data unit includes a MAC header, an RLC header, the PDCP header, and the payload.