公开(公告)号：US20230345570A1

公开(公告)日：2023-10-26

申请号：US18343702

申请日：2023-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo Fan ,  Xi Zhang ,  Lei Chen ,  Shitong Yuan

IPC: H04B7/06 ,  H04W76/19

CPC classification number: H04W76/19 ,  H04B7/0695

Abstract: This application provides a beam failure recovery method, an apparatus, and a system. In this solution, a terminal device receives first configuration information from a network device, and performs cell-level beam failure recovery or transmission reception point level (TRP-level) beam failure recovery based on the first configuration information. The first configuration information is used to configure a plurality of sets of beam failure detection resources and a plurality of sets of candidate beam resources. Based on this solution, the terminal device may perform partial beam failure recovery based on the plurality of sets of beam failure detection resources and the plurality of sets of candidate beam resources, so that the terminal device can detect a TRP-level beam failure and recover the TRP-level beam failure in time. This effectively improves smooth system evolution.

公开(公告)号：US11764928B2

公开(公告)日：2023-09-19

申请号：US17825879

申请日：2022-05-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xi Zhang ,  Rong Wen ,  Lei Chen

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04L1/0003 ,  H04L5/0005 ,  H04L5/0098 ,  H04W72/04 ,  H04L5/0007 ,  H04L5/0091

Abstract: The present disclosure provides a method and apparatus for reference signal configuration. The method includes: determining a time domain density of a phase tracking reference signal (PTRS) according to a first modulation and coding scheme (MCS) and correspondence information between MCSs and PTRS time domain densities; determining a frequency domain density of the PTRS according to a first scheduled bandwidth and correspondence information between scheduled bandwidths and PTRS frequency domain densities; and mapping the PTRS to one or more resource elements (REs) according to the time domain density of the PTRS and the frequency domain density of the PTRS when certain conditions are met.

公开(公告)号：US20230209487A1

公开(公告)日：2023-06-29

申请号：US18174011

申请日：2023-02-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei Liu ,  Lei Chen

IPC: H04W56/00

CPC classification number: H04W56/0015

Abstract: This application discloses a synchronization signal transmission method and an apparatus. The method includes: A network device sends a first synchronization signal block SSB at a first candidate location, and sends a second SSB at a second candidate location, where there is a correspondence between the first candidate location and the second candidate location; a terminal obtains, through detection, the first SSB at the first candidate location; the terminal determines the second candidate location based on the first candidate location, and obtains, through detection, the second SSB at the second candidate location; and the terminal performs physical broadcast channel PBCH detection or reference signal received power RSRP measurement based on the first SSB and/or the second SSB.

公开(公告)号：US11627530B2

公开(公告)日：2023-04-11

申请号：US16942664

申请日：2020-07-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Chen ,  Fengwei Liu ,  Jing Qiu

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/04

Abstract: This application provides a signal transmission method and apparatus. The method includes: receiving, by a first device, configuration information sent by a third device and used to indicate a quantity of times for which the third device sends a signal group, in other words, learning in advance, based on the configuration information, a quantity of receive beams that can be measured, and selecting, after receiving first signals of the quantity an optimal receive beam from receive beams that have been detected, to avoid continuously detecting more first signals for selection.

公开(公告)号：US20230075717A1

公开(公告)日：2023-03-09

申请号：US17983898

申请日：2022-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei Liu ,  Lei Chen ,  Gao Xiang

IPC: H04W28/06 ,  H04W24/04 ,  H04L51/224 ,  H04L67/54

Abstract: This application provides a signal transmission method and apparatus. The method is applied to a communications system including at least three nodes, a second node in the at least three nodes communicates with a third node by using a first node, and the method includes: determining, by the first node, a status of a link between the first node and the second node; and sending, by the first node, first notification information to the third node when determining that the link between the first node and the second node is abnormal, where the first notification information is used to indicate that the link between the first node and the second node is abnormal.

公开(公告)号：US20230034674A1

公开(公告)日：2023-02-02

申请号：US17957818

申请日：2022-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hailong Hou ,  Chaojun Li ,  Yongqiang Fei ,  Lei Chen ,  Juan Zheng

IPC: H04W74/08 ,  H04L67/04

Abstract: This application provides a random access method, an apparatus, and a system. The method includes: A network device determines M RACH resource sets, where the M RACH resource sets correspond to N terminal types, the N terminal types are determined based on bandwidth types and/or random access types of terminals, and M and N are positive integers; and then sends RACH configuration information to at least one terminal, where the RACH configuration information indicates the M RACH resource sets, the M RACH resource sets are used by the at least one terminal to send a random access request to the network device, and a bandwidth type of any one of the at least one terminal belongs to the bandwidth types for determining the N terminal types.

公开(公告)号：US11564184B2

公开(公告)日：2023-01-24

申请号：US16940918

申请日：2020-07-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei Liu ,  Dan Wu ,  Lei Chen

IPC: H04W56/00 ,  H04J3/06

Abstract: A first node device includes a transmitter, a receiver, a processor, and a non-transitory computer-readable storage medium storing a program to be executed by the processor. The program includes instructions to cause the transmitter to send, to a second node device, an offset of a first uplink sending timing of the second node device and a first amount of timing adjustment of the second node device, cause the transmitter to send indication information to the second node device, where the indication information indicates whether the second node device sends uplink data by using the first uplink sending timing of the second node device, and receive, through the receiver, data sent by the second node device, where the first node device is a parent node device of the second node device.

公开(公告)号：US20230013657A1

公开(公告)日：2023-01-19

申请号：US17933294

申请日：2022-09-19

Applicant: Huawei Technologies Co, Ltd.

Inventor： Haifeng Yu ,  Lei Chen ,  Bingzhao Li

IPC: H04W24/10

Abstract: A method for determining cell quality information and an apparatus are provided. The method includes: A terminal device receives first information from a first network device, where the first information indicates that a first cell is associated with a first SSB and a second SSB, and frequency information of the first SSB is different from frequency information of the second SSB; and the terminal device determines quality information of the first cell based on a measurement value of the first SSB and a measurement value of the second SSB.

公开(公告)号：US20220417811A1

公开(公告)日：2022-12-29

申请号：US17901413

申请日：2022-09-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingyu Xin ,  Bingzhao Li ,  Lei Chen

IPC: H04W36/06 ,  H04L5/00 ,  H04W36/16

Abstract: Embodiments of this application provide a communication method and a device. The communication method and the device may be used in the field of a communication technology that supports a reduced capability terminal device, for example, weak-capability UE or MTC UE. The method includes: A first network device determines that a type of a first terminal device is a first type. The first network device sends a handover request message. The handover request message includes first indication information. The first indication information includes identifier information of the first type. The first network device receives a handover acknowledgment message or a handover preparation failure message.

公开(公告)号：US11496262B2

公开(公告)日：2022-11-08

申请号：US17403422

申请日：2021-08-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dan Wu ,  Lei Chen

IPC: H04L5/00 ,  H04L27/26

Abstract: This application discloses a reference signal transmission method and apparatus. The method includes: generating one or more OFDM symbols, where at least one OFDM symbol includes a PTRS resource block, the PTRS resource block includes at least two of three sequences: a PTRS sequence of Y elements, X elements after the PTRS sequence, and Z elements before the PTRS sequence, and the PTRS resource block occupies a plurality of consecutive resource elements REs, where X, Y, and Z are all integers; and sending the one or more OFDM symbols. According to the foregoing method and apparatus, inter-carrier interference is reduced, thereby improving spectral efficiency.