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：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：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：US20210022080A1

公开(公告)日：2021-01-21

申请号：US17062323

申请日：2020-10-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junren CHANG ,  Ning DONG ,  Zhenzhen CAO ,  Baokun SHAN

IPC: H04W52/02 ,  H04W76/28 ,  H04W76/38 ,  H04W72/04 ,  H04W76/27

Abstract: A method and an apparatus for controlling a timer are disclosed. In the method, after user equipment activates a first bandwidth part in response to a first message, the user equipment controls a target timer to perform timing based on a unit time length of a second bandwidth part to optimize the timer in a BWP scenario.

公开(公告)号：US20200178318A1

公开(公告)日：2020-06-04

申请号：US16787889

申请日：2020-02-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haifeng YU ,  Xin XIONG ,  Zhenzhen CAO ,  Xiao XIAO

IPC: H04W74/08 ,  H04W80/02 ,  H04W72/04 ,  H04W76/11

Abstract: Embodiments of this application provide a method for transmitting a random access response, a network device, and a terminal device. The method includes: determining, by an access network device, a Medium Access Control (MAC) protocol data unit (PDU), where the MAC PDU includes at least two MAC subPDUs, the at least two MAC subPDUs include at least a first MAC subPDU, the first MAC subPDU includes a first MAC subheader and a random access response (RAR) corresponding to the first MAC subheader, and the first MAC subheader is located before the RAR corresponding to the first MAC subheader; and sending, by the access network device, the MAC PDU.

公开(公告)号：US20200162854A1

公开(公告)日：2020-05-21

申请号：US16693696

申请日：2019-11-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hejun WANG ,  Mingchao LI ,  Zhenzhen CAO ,  Hang LIU ,  Yinghui YU

IPC: H04W4/06 ,  H04W4/40 ,  H04W28/02

Abstract: A service data transmission method and an apparatus are disclosed to reduce a data transmission latency. An example method includes: obtaining, by a first network device, first configuration information, where the first configuration information includes a first identifier and a first transmission mode corresponding to the first identifier, and the first transmission mode corresponding to the first identifier is a mode in which transmission is performed by using an access network; receiving, by the first network device, first service data and a second identifier that are sent by a terminal; determining, by the first network device based on the first identifier and the second identifier, that a transmission mode of the first service data is the first transmission mode; and transmitting, by the first network device, the first service data based on the first transmission mode.

公开(公告)号：US20200053590A1

公开(公告)日：2020-02-13

申请号：US16657561

申请日：2019-10-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin XU ,  Zhenzhen CAO ,  Haifeng YU ,  Bingzhao LI ,  Xuelong WANG

IPC: H04W28/02 ,  H04W80/08 ,  H04W28/22 ,  H04L12/819 ,  H04L12/823

Abstract: This disclosure provides a data transmission method and apparatus. The method includes: determining a data flow mapped onto a data radio bearer (DRB); and controlling a transmission rate of the data flow based on the transmission rate of the data flow and a first rate threshold of the data flow. This disclosure provides the data transmission method and apparatus, to control the transmission rate of the data flow mapped onto the DRB.