公开(公告)号：US20220225209A1

公开(公告)日：2022-07-14

申请号：US17708767

申请日：2022-03-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanping ZHU ,  Yulong SHI ,  Jing LIU ,  Yibin ZHUO ,  Zhenzhen CAO ,  Mingzeng DAI

IPC: H04W40/24

Abstract: A data packet transmission method and apparatus are provided. The method includes: An IAB donor determines first configuration information, where the first configuration information is used to indicate a first backhaul link BH RLC channel, and the first BH RLC channel is used to transmit a control protocol data unit PDU at a backhaul adaptation protocol BAP layer. The IAB donor sends the first configuration information to an IAB node. According to the foregoing procedure, the IAB donor indicates, by using the first configuration information, the IAB node to send the control PDU at the BAP layer through the first BH RLC channel, to implement bearer mapping when the IAB node needs to send the control PDU at the BAP layer.

公开(公告)号：US20220015011A1

公开(公告)日：2022-01-13

申请号：US17487708

申请日：2021-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jing LIU ,  Mingzeng DAI ,  Yuanping ZHU ,  Zhenzhen CAO ,  Yibin ZHUO

IPC: H04W40/36 ,  H04W36/30 ,  H04W76/19 ,  H04W76/15 ,  H04W88/14

Abstract: The present invention provides a communications method and apparatus. The method includes: when an integrated access and backhaul IAB node detects that an RLF occurs on a first backhaul BH link, triggering, by the IAB node, feedback of DDDS information of the IAB node to an IAB donor node, and/or sending, by the IAB node, first indication information to a child node of the IAB node, where the first indication information is used to indicate the child node of the IAB node to trigger feedback of DDDS information of the child node to the IAB donor node.

公开(公告)号：US20210377930A1

公开(公告)日：2021-12-02

申请号：US17401986

申请日：2021-08-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jing LIU ,  Zhenzhen CAO ,  Mingzeng DAI ,  Yuanping ZHU ,  Yibin ZHUO

IPC: H04W72/04 ,  H04W72/12 ,  H04W48/12 ,  H04W28/02 ,  H04W8/26

Abstract: This application provides a data transmission method and an apparatus. The method includes that an integrated access and backhaul (IAB) donor distributed unit receives downlink data and service attribute information of downlink data that are sent by an IAB donor centralized unit. The IAB donor distributed unit maps the downlink data to a corresponding backhaul radio link control channel (BH RLC) channel based on the service attribute information of the downlink data or based on the service attribute information of the downlink data and access IAB node address information of the downlink data, and sends the downlink data to a next-hop IAB node.

公开(公告)号：US20210377787A1

公开(公告)日：2021-12-02

申请号：US17400889

申请日：2021-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yibin ZHUO ,  Zhenzhen CAO ,  Mingzeng DAI ,  Yuanping ZHU ,  Jing LIU

IPC: H04W28/02 ,  H04W72/14 ,  H04W72/12 ,  H04W72/04

Abstract: The present disclosure discloses example downlink buffer status feedback methods and apparatuses. One example method includes determining first information by a first node, where the first information indicates a downlink buffer status of a first bearer between the first node and a parent node of the first node. The first information is sent by the first node to a second node, where the first node is a relay node in a wireless relay communications system, and the second node is a parent node of the first node.

公开(公告)号：US20210168666A1

公开(公告)日：2021-06-03

申请号：US17172249

申请日：2021-02-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： You LI ,  Yuanping ZHU ,  Shitong YUAN ,  Jing LIU ,  Mingzeng DAI

IPC: H04W36/00 ,  H04B7/155 ,  H04W76/18

Abstract: This application provides a communication method and a communications apparatus. A first entity buffers data, so that a packet loss caused by backhaul link switching or a radio link failure can be avoided as much as possible. The communication method is applied to a relay system. The relay system includes a first node, a source node, and a target node, and the source node provides a service for the first node. The method includes: determining, by the first node, to be handed over from the source node to the target node; and storing, by the first node, data buffered in at least one first entity, where the first entity is a radio link control RLC entity or an adaptation layer entity.

公开(公告)号：US20210022040A1

公开(公告)日：2021-01-21

申请号：US17062190

申请日：2020-10-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanping ZHU ,  You LI ,  Jing LIU ,  Rui WANG ,  Shitong YUAN ,  Mingzeng DAI

IPC: H04W28/06 ,  H04L1/18 ,  H04W80/02 ,  H04W28/02

Abstract: This application provides a data transmission method and apparatus, to reduce wastes of transmission resources. The method includes: receiving, by a first node, a data packet from an air interface, where the first node is a wireless backhaul node, and the wireless backhaul node is configured to provide a wireless backhaul service for a node that wirelessly accesses the wireless backhaul node; duplicating, by the first node, the data packet to obtain M data packets, where M is an integer greater than 1; and splitting, by the first node, the M data packets, and sending the M data packets to a second node through at least two paths. This application relates to the field of communications technologies.

公开(公告)号：US20210007011A1

公开(公告)日：2021-01-07

申请号：US17029986

申请日：2020-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanping ZHU ,  Mingzeng DAI ,  Xiaoli SHI

IPC: H04W28/12 ,  H04B17/40 ,  H04B7/155

Abstract: An information transmission method is provided, wherein the method includes: determining, by a relay node, first information, where the first information includes at least one of the following information: a buffer status at a granularity of the relay node, a buffer status at a granularity of an RB between the relay node and at least one first node, a buffer status at a granularity of each first node in the at least one first node, and a buffer status at a granularity of an RB between each first node in the at least one first node and a child node, where the at least one first node is a child node of the relay node; and sending, by the relay node, a first packet that carries the first information to a second node.

公开(公告)号：US20200252853A1

公开(公告)日：2020-08-06

申请号：US16854630

申请日：2020-04-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoli SHI ,  Jing LIU ,  Mingzeng DAI ,  Rui WANG ,  Yuanping ZHU

IPC: H04W40/22 ,  H04W48/10 ,  H04W74/08 ,  H04W76/11 ,  H04W72/04 ,  H04W68/00 ,  H04W12/00

Abstract: An information transmission method in which a first device receives a first message that is sent by a base station, where the first message includes first indication information and system information, and the first indication information is used to determine whether to broadcast the system information; and the first device determines, according to the first indication information, that the system information needs to be broadcast, and broadcasts the system information. In this application, the first message of the base station carries the first indication information. In this way, after receiving the first message, the first device may determine to broadcast the system information according to the first indication information, so that a target device receiving the system information accesses the base station by using the system information.