公开(公告)号：US09357447B2

公开(公告)日：2016-05-31

申请号：US14884360

申请日：2015-10-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mingchao Li ,  Xin Xiong ,  Zhenzhen Cao

IPC: H04W36/00 ,  H04W36/04 ,  H04W76/04 ,  H04W24/10 ,  H04W72/14 ,  H04W88/02

Abstract: Embodiments of the present invention provide a cell handover method and a device. so that the target eNB uses a current serving small node as a user plane serving node after UE is handed over and uses the target eNB as a control plane serving node after the UE is handed over; receiving a handover request acknowledgment sent by the target eNB; and sending offloading configuration information of the current serving small node to the current serving small node, and sending RRC reconfiguration information of the UE to the UE, so that offloading configuration is performed separately by the current serving small node and the UE. This avoids a problem that in a cell handover process, a transmission resource required for transmission increases and a delay is relatively great because the current serving small node forwards a large amount of data to the target eNB.

公开(公告)号：US12262323B2

公开(公告)日：2025-03-25

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 ,  H04W72/0453 ,  H04W72/23 ,  H04W76/27 ,  H04W76/28 ,  H04W76/38

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：US12143996B2

公开(公告)日：2024-11-12

申请号：US17670909

申请日：2022-02-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yibin Zhuo ,  Yulong Shi ,  Mingzeng Dai ,  Yuanping Zhu ,  Jing Liu ,  Zhenzhen Cao

IPC: H04W72/21 ,  H04W72/1263 ,  H04W80/02 ,  H04W88/14

Abstract: This application provides a method of determining an association between logical channel groups, including: The first backhaul node receives a first buffer status report from a first device, where the first buffer status report is used to determine uplink buffer statuses of one or more first logical channel groups of a MAC entity corresponding to the first backhaul node and the first device. The first backhaul node determines, based on the first logical channel group(s) and a first mapping relationship, one or more second logical channel groups associated with the first logical channel group(s), where a second device is a parent node of the first backhaul node, and the first mapping relationship includes a mapping relationship between the first logical channel group(s) and the second logical channel group(s) of a MAC entity corresponding to the first backhaul node and the second device.

公开(公告)号：US12096460B2

公开(公告)日：2024-09-17

申请号：US17171702

申请日：2021-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bingzhao Li ,  Zhenzhen Cao ,  Lei Chen ,  Xuelong Wang

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04W72/51 ,  H04L5/0094 ,  H04W72/0453 ,  H04W72/23

Abstract: A communication method and an apparatus are provided. The method includes: receiving, by a terminal device, a first command sent by a network device, wherein the first command carries a first identifier, and is used to activate a first bandwidth part (BWP) indicated by the first identifier, and the first BWP is a BWP on a first component carrier (CC); and ignoring the first command when the terminal device does not support the first BWP and a second BWP being in an active state at the same time, wherein the second BWP is a BWP in the active state on a second CC, and the second CC is different from the first CC. According to the application, the terminal device may determine, based on a capability of the terminal device, to ignore an improper command, to optimize a problem of switching an active BWP in a carrier aggregation scenario.

公开(公告)号：US20240179560A1

公开(公告)日：2024-05-30

申请号：US18427829

申请日：2024-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin Xu ,  Bingzhao Li ,  Zhenzhen Cao

IPC: H04W28/06 ,  H04J3/06 ,  H04W36/00

CPC classification number: H04W28/06 ,  H04J3/0667 ,  H04W36/0033

Abstract: This application provides a communication method and a communication apparatus. The method includes: A target access network device determines that a first terminal device is handed over from a source access network device to the target access network device; and sends first information to the first terminal device, where the first information indicates a first packet header compression context, and the first packet header compression context is for compressing or decompressing a packet header of a data packet. In this application, the target access network device sends, to the first terminal device, the first information indicating the first packet header compression context, so that in a handover scenario, the first terminal device can correctly decompress a subsequently received data packet with a compressed packet header. This helps improve communication reliability.

公开(公告)号：US20240080262A1

公开(公告)日：2024-03-07

申请号：US18506590

申请日：2023-11-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanping Zhu ,  Yulong Shi ,  Jing Liu ,  Zhenzhen Cao

IPC: H04L45/30 ,  H04L45/17

CPC classification number: H04L45/30 ,  H04L45/17

Abstract: In accordance with an embodiment, a communication method applied to a first node includes: receiving first information from a second node, wherein the first information comprises an available space size in a first buffer space of the second node, the first buffer space is for buffering a data packet that is to be transmitted through a first path, the first path is a primary path for transmitting the data packet, and the second node is a next-hop node of the first node on the primary path; and in response to the available space size in the first buffer space being less than or equal to a first threshold, determining to transmit the data packet through a third node, wherein the third node is a next-hop node of the first node on a backup path for transmitting the data packet.

公开(公告)号：US20240032110A1

公开(公告)日：2024-01-25

申请号：US18447056

申请日：2023-08-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junren Chang ,  Zhenzhen Cao ,  Bingzhao Li ,  Haibo Xu ,  Xuelong Wang

IPC: H04W74/08 ,  H04L5/00 ,  H04W56/00 ,  H04W72/1273

CPC classification number: H04W74/0833 ,  H04L5/0092 ,  H04L5/0094 ,  H04W56/001 ,  H04W72/1273

Abstract: A method includes: performing, by a terminal device, data transmission based on a configuration parameter of a currently activated first bandwidth part BWP, where the configuration parameter of the first BWP includes at least one of a first resource offset, a first bandwidth, and a first subcarrier spacing; determining, by the terminal device, a first random access resource and a second configuration parameter for random access, where the second configuration parameter includes at least one of a second resource offset, a second bandwidth, and a second subcarrier spacing; sending, by the terminal device, a random access request to the network device on the first random access resource; and receiving, by the terminal device, a random access response based on the second configuration parameter, where the random access response is sent by the network device based on the random access request.

公开(公告)号：US20230396488A1

公开(公告)日：2023-12-07

申请号：US18450919

申请日：2023-08-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin Xu ,  Bingzhao Li ,  Li Chai ,  Zhenzhen Cao

IPC: H04L41/0668 ,  H04W76/27 ,  H04L1/08 ,  H04W24/02 ,  H04W72/0453

CPC classification number: H04L41/0668 ,  H04W76/27 ,  H04W72/0453 ,  H04W24/02 ,  H04L1/08

Abstract: This application provides a method for handling a radio link failure, a terminal device, and a network device. The method includes: sending, by a terminal device, duplicated data packets to a network device on a first carrier and a second carrier; and sending, by the terminal device, RLF indication information to the network device in accordance with determining that an RLF event occurs on at least one of the first carrier and the second carrier, where the RLF indication information is used to indicate that the RLF event occurs on the first carrier, the second carrier, or the first carrier and the second carrier. The foregoing technical solution can optimize handling of the radio link failure.

公开(公告)号：US11818707B2

公开(公告)日：2023-11-14

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 ,  H04W72/1263 ,  H04W28/02 ,  H04W28/24 ,  H04W80/02 ,  H04W72/542

CPC classification number: H04W72/1263 ,  H04W28/0268 ,  H04W28/24 ,  H04W72/542 ,  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：US11627510B2

公开(公告)日：2023-04-11

申请号：US17655643

申请日：2022-03-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuting Yao ,  Haibo Xu ,  Bingzhao Li ,  Zhenzhen Cao ,  Jian Wang

IPC: H04W4/00 ,  H04W36/08 ,  H04W76/19 ,  H04W80/02 ,  H04W80/08 ,  H04W12/0431 ,  H04W92/10

Abstract: This application provides a data processing method and apparatus, and a computer storage medium. When a PDCP entity over a UM DRB is re-established, or when a cell handover occurs and the PDCP entity over a UM DRB uses a key used before the handover, the PDCP entity determines a first SDU, where the first SDU is an SDU that is associated with a sequence number by the PDCP entity but whose corresponding data has not been transmitted through an air interface; and delivers a PDU corresponding to the first SDU to an RLC entity. Data corresponding to the first SDU is redelivered, to avoid a data packet loss caused by preprocessing of the PDCP entity.