公开(公告)号：US20230180090A1

公开(公告)日：2023-06-08

申请号：US18153580

申请日：2023-01-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanping ZHU ,  Yulong SHI ,  Jing LIU ,  Zhenzhen CAO

IPC: H04W36/30 ,  H04W76/19

CPC classification number: H04W36/305 ,  H04W76/19

Abstract: This application provides a communication method. The method includes: When a radio link failure RLF occurs on a first communication device connected to a first donor network device, the first communication device performs an RLF recovery process, and connects to a second donor network device. The first communication device determines that the first donor network device and the second donor network device are different network devices. The first communication device sends first information to a second communication device, where the first information indicates the second communication device to send a radio resource control RRC re-establishment request message, or indicates the second communication device to obtain system information sent by the first communication device.

公开(公告)号：US20230156848A1

公开(公告)日：2023-05-18

申请号：US18156560

申请日：2023-01-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanping ZHU ,  Jing LIU ,  Haiyan LUO ,  Yulong SHI

IPC: H04W76/20 ,  H04W74/08

CPC classification number: H04W76/20 ,  H04W74/0841 ,  H04W88/08

Abstract: A communication method applied to an integrated access and backhaul (IAB) system includes: a child node receives a first radio resource control (RRC) reconfiguration message from an access network device via a parent node, where the first RRC reconfiguration message includes a random access-free indication. The child node starts a timer. The child node sends a first RRC reconfiguration complete message to the access network device via the parent node. The child node receives first indication information from the parent node, where the first indication information indicates to stop the timer. The child node stops the timer.

公开(公告)号：US20220263797A1

公开(公告)日：2022-08-18

申请号：US17738250

申请日：2022-05-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jing LIU ,  Yuanping ZHU ,  Mingzeng DAI

IPC: H04L61/5007

Abstract: The present disclosure relates to integrated access and backhaul (IAB) node dual connectivity setup methods and communication apparatus. In one example method, a first IAB node sets up a first F1 interface with a primary donor node of the first IAB node. The first IAB node obtains an internet protocol (IP) address anchored at a secondary donor node connected to the first IAB node and/or configuration information of a serving cell, of the first IAB node, belonging to the secondary donor node. The first IAB node sends, to the secondary donor node, a request for setting up a second F1 interface with the secondary donor node, where the request includes the configuration information of the serving cell, of the first IAB node, belonging to the secondary donor node.

公开(公告)号：US20210378044A1

公开(公告)日：2021-12-02

申请号：US17400832

申请日：2021-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W76/25 ,  H04W72/04 ,  H04B7/155

Abstract: The present disclosure relates to methods and apparatus for controlling wireless backhaul link. In one example method, a first device determines to manage a first radio link control (RLC) bearer on a wireless backhaul link between a first backhaul node and a second device, where the second device is a parent node of the first backhaul node, the first device is a centralized unit (CU) of a donor base station, and the second device is a distributed unit (DU) of the donor base station; the second device is a second backhaul node, and the first device is a donor base station; or the first device is a CU of a donor base station, and the second device is a second backhaul node. The first device sends a backhaul type indicator and management information of the first RLC bearer to the first backhaul node.

公开(公告)号：US20210377846A1

公开(公告)日：2021-12-02

申请号：US17401855

申请日：2021-08-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanping ZHU ,  Zhenzhen CAO ,  Mingzeng DAI

IPC: H04W48/16 ,  H04W76/12 ,  H04L5/00 ,  H04W28/08

Abstract: Embodiments of this application provide a communication method and a related device. The method includes: receiving, by a first node, a data packet from a second node, where the data packet includes first indication information, and the first indication information includes a logical channel identity LCID corresponding to the data packet; and delivering, by the first node, the data to an upper protocol layer of the RLC layer of the first node based on the first indication information.

公开(公告)号：US20210377805A1

公开(公告)日：2021-12-02

申请号：US17401669

申请日：2021-08-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W28/12 ,  H04W72/04 ,  H04W84/04

Abstract: Example mapping methods and apparatus are described. One example method includes determining a message type of an uplink signaling message by an integrated access and backhaul node. The integrated access and backhaul node maps the uplink signaling message to a corresponding backhaul radio link control (BH RLC) based on an uplink mapping relationship from an integrated access and backhaul donor centralized unit and the message type. The uplink signaling message is sent to a parent node of the integrated access and backhaul node.

公开(公告)号：US20210368409A1

公开(公告)日：2021-11-25

申请号：US17398175

申请日：2021-08-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W36/08 ,  H04W36/00 ,  H04W36/38

Abstract: An integrated access and backhaul (IAB) node switching method, including: receiving, by a third IAB node, a node switching command from a source donor node, where the node switching command is used to indicate a parent node of the third IAB node to switch to a second node, the source donor node is a control node of the third IAB node, the first node is a source parent node of the third IAB node, the first node is a donor node or another IAB node, and the second node is a donor node or another IAB node; and switching, by the third IAB node, to the second node, and sending, by the third IAB node, first indication information to a child node of the third IAB node, where the first indication information indicates the child node to interrupt transmission with the third IAB node.

公开(公告)号：US20210243636A1

公开(公告)日：2021-08-05

申请号：US17238767

申请日：2021-04-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yibin ZHUO ,  Yuanping ZHU ,  Mingzeng DAI

IPC: H04W24/10 ,  H04W28/02 ,  H04W72/04

Abstract: This application discloses communications methods, systems, and apparatuses. One system comprises: a relay node of a radio access network and a parent node of the relay node; wherein the relay node is configured to: generate a message that comprises an identifier of a radio access network device and downlink status information corresponding to the identifier of the radio access network device, wherein the radio access network device is communicably coupled to the relay node and is directly accessed by a terminal device; and send the message to the parent node.

公开(公告)号：US20210092667A1

公开(公告)日：2021-03-25

申请号：US17095312

申请日：2020-11-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanping ZHU ,  Mingzeng DAI ,  Jing LIU ,  Yibin ZHUO ,  Yinghao GUO

IPC: H04W40/24 ,  H04W28/02

Abstract: This application provides wireless communications configuration methods and apparatuses. One method includes: receiving a routing configuration of a transmission path for a layer of the network device, wherein the routing configuration comprises an identifier of a first wireless backhaul node, the network device is a distributed unit (DU) of the donor node or a second wireless backhaul node connected to the DU, the CU and at least one wireless backhaul node is on the transmission path, and wherein the layer of the network device is capable of mapping, on a backhaul link based on identification information related to quality of service (QoS) requirement comprised in a data packet, the data packet to a radio link control (RLC) channel on a backhaul link for sending the data packet to a next-hop node of the network device on the transmission path; and performing the routing configuration on the layer.

公开(公告)号：US20210067444A1

公开(公告)日：2021-03-04

申请号：US17098103

申请日：2020-11-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanping ZHU ,  Jing LIU ,  Mingzeng DAI

IPC: H04L12/741 ,  H04L12/761 ,  H04W4/40

Abstract: Embodiments of this application provide a wireless communication method and apparatus. The method includes: receiving, by at least two forwarding nodes, a first data packet from a source node, where the first data packet includes service data, forwarding node set information of the first data packet, and destination node information; and a forwarding node set of the first data packet includes the at least two forwarding nodes, and the destination node information is used to identify a destination node set and/or a destination node; and sending, by at least one forwarding node in the at least two forwarding nodes, a second data packet, where the second data packet includes the service data, forwarding node set information of the second data packet, and the destination node information.