公开(公告)号：US11678377B2

公开(公告)日：2023-06-13

申请号：US17167889

申请日：2021-02-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yue Zhao ,  Li Chai ,  Zhiheng Guo ,  Xingqing Cheng

IPC: H04W74/08 ,  H04W74/00 ,  H04L27/34 ,  H04J13/00 ,  H04J13/22

CPC classification number: H04W74/0833 ,  H04J13/0062 ,  H04J13/22 ,  H04L27/3444 ,  H04W74/006 ,  H04W74/008 ,  H04W74/08

Abstract: A random access preamble sequence generation method and user equipment are provided. The method includes the following: when receiving first notification signaling sent by a base station, determining, by UE, to calculate a cyclic shift value by using a first solution; obtaining a first logical root sequence number, and determining a root sequence based on the first logical root sequence number; and generating a random access preamble sequence based on the root sequence and the cyclic shift value, where the first solution is a solution of calculating the cyclic shift value when a Doppler shift of the UE is less than a first preset value and greater than a second preset value, the first preset value is less than twice of a physical random access channel (PRACH) subcarrier spacing, the second preset value is greater than the PRACH subcarrier spacing.

公开(公告)号：US11576068B2

公开(公告)日：2023-02-07

申请号：US17091821

申请日：2020-11-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Chai ,  Hong Wang ,  Xun Tang ,  Jian Zhang

IPC: H04W24/10 ,  H04W72/12 ,  H04W72/14

Abstract: Methods, systems, and apparatus for communications are provided. In one aspect, a communication method including: determining, by a first communications apparatus, buffer latency information, and sending, by the first communications apparatus, the buffer latency information. The buffer latency information is determined based on a buffer latency of one or more data packets. The buffer latency indicates one of a time interval between a time point at which a data packet arrives at an access stratum (AS) and a time point at which a corresponding buffer status report (BSR) is sent, or a time interval between a time point at which a data packet arrives at an AS and a time point at which a corresponding uplink grant is received.

公开(公告)号：US11496256B2

公开(公告)日：2022-11-08

申请号：US16990681

申请日：2020-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Tang ,  Li Chai ,  Jian Zhang

IPC: H04W56/00 ,  H04L5/00 ,  H04W76/27 ,  H04W72/04

Abstract: A communication method and apparatus are provided. The method is: receiving a radio resource control RRC connection reconfiguration message sent by a network device, where the RRC connection reconfiguration message includes one or more secondary cells configured by the network device for a terminal, information used to indicate to activate the one or more secondary cells, and a start moment at which the terminal reports channel state information CSI; and starting to report the CSI of the one or more secondary cells at the start moment.

公开(公告)号：US11477679B2

公开(公告)日：2022-10-18

申请号：US16942348

申请日：2020-07-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Shi ,  Li Chai ,  Yajuan Li ,  Hao Bi ,  Bo Lin

IPC: H04W24/10 ,  H04W24/08

Abstract: Disclosed are measurement method and device, information interchange method and device and residence method and device. The measurement method includes configuring measurement configuration information about a UE and sending same, the measurement configuration information including a measurement report trigger condition for a reference cell, so that the UE reports a measurement result when satisfying the measurement report trigger condition. The information interchange method includes interchanging discontinuous data transmission parameter configuration information with a fourth base station, so that a base station side executes scheduling and/or mobility management on a user equipment. The residence method includes sending indication information to a UE, the indication information being used for indicating whether the UE can reside in this cell or not, an object of the UE that can be resident, an object of the UE that cannot be resident, and at least one of the size and type of the cell.

公开(公告)号：US20220210782A1

公开(公告)日：2022-06-30

申请号：US17698888

申请日：2022-03-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Chai ,  Jian Zhang ,  Kunpeng Liu

IPC: H04W72/04 ,  H04W16/28

Abstract: This application relates to the field of system information transmission technologies, and in particular, to a method for transmitting system information and an apparatus. A related method for receiving system information includes: determining, by a terminal device, resource information, where the terminal device uses one beam to perform communication on a resource indicated by the resource information; and receiving, by the terminal device based on the resource information, system information on the resource indicated by the resource information. According to the method for transmitting system information and the apparatus in this application, a probability of successfully receiving system information by a terminal device can be increased.

公开(公告)号：US11284395B2

公开(公告)日：2022-03-22

申请号：US16267964

申请日：2019-02-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Chai ,  Jian Zhang ,  Kunpeng Liu

IPC: H04W72/04 ,  H04W16/28

Abstract: This application relates to the field of system information transmission technologies, and in particular, to a method for transmitting system information and an apparatus. A related method for receiving system information includes: determining, by a terminal device, resource information, where the terminal device uses one beam to perform communication on a resource indicated by the resource information; and receiving, by the terminal device based on the resource information, system information on the resource indicated by the resource information. According to the method for transmitting system information and the apparatus in this application, a probability of successfully receiving system information by a terminal device can be increased.

公开(公告)号：US20220061022A1

公开(公告)日：2022-02-24

申请号：US17453947

申请日：2021-11-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Chen ,  Bingzhao Li ,  Li Chai

IPC: H04W68/02 ,  H04W72/04 ,  H04W52/02 ,  H04W16/28 ,  H04B7/06

Abstract: A method includes: determining, by a communications device, information about a target beam; determining a target monitoring occasion based on the information about the target beam and a mapping relationship between information about a beam and a monitoring occasion, where the target monitoring occasion is in a system information window, and the system information window is used for OSI; and monitoring downlink control information in the target monitoring occasion. This application is applicable to a process of information transmission between a network device and the communications device.

公开(公告)号：US11082965B2

公开(公告)日：2021-08-03

申请号：US16188406

申请日：2018-11-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Chai ,  Hong Wang ,  Jian Zhang ,  Wei Quan ,  Zhenzhen Cao

IPC: H04W72/04 ,  H04W92/20 ,  H04W88/06 ,  H04W4/70 ,  H04W24/10 ,  H04W48/12 ,  H04W88/10

Abstract: The method may include: after receiving, through a first interface or a second interface, resource allocation information of a neighboring cell of a serving cell in which UE is located, a network device may allocate a resource to the UE based on the resource allocation information of the neighboring cell, so as to prevent the UE from using a same resource as UE located in the neighboring cell, and reduce interference to the neighboring cell; or allocate, to the UE, a resource with relatively small interference to the UE, so as to reduce interference of the neighboring cell to the UE. The first interface is an interface that performs communication by using a UE-to-UE communications technology. The second interface is an interface that performs communication by using a UE-to-network device communications technology.

公开(公告)号：US20210168810A1

公开(公告)日：2021-06-03

申请号：US17171514

申请日：2021-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Chen ,  Bingzhao Li ,  Zhenzhen Cao ,  Li Chai

IPC: H04W72/04 ,  H04W76/27 ,  H04W72/12

Abstract: This application provides a communication method, an apparatus, and a communications system, and relates to the field of communications technologies. A terminal device receives system information broadcast by a network device, and determines a bandwidth of an initial BWP based on the system information. The system information includes first indication information. The first indication information indicates that the bandwidth of the initial BWP used for the terminal device is a first bandwidth or a second bandwidth. The first bandwidth is indicated by using a first bandwidth parameter carried in the system information. The second bandwidth is a bandwidth of a CORESET 0. The CORESET 0 is used to schedule the system information.

公开(公告)号：US10999143B2

公开(公告)日：2021-05-04

申请号：US16745288

申请日：2020-01-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Chai

IPC: H04L12/24 ,  H04L1/00 ,  H04L5/00 ,  H04W24/10 ,  H04W36/00 ,  H04L25/02 ,  H04B7/024 ,  H04B7/06

Abstract: Disclosed are a cell measurement method, a cell resource sharing method, and a related device. The cell measurement method includes: a user equipment receives a measurement configuration message sent by a base station, wherein the measurement configuration message comprises at least one physical cell identity and CSI-RS configuration information corresponding to a measured cell, and wherein the physical cell identity is used to indicate the measured cell; measuring the CSI-RS corresponding to the measured cell according to the CSI-RS configuration information, and obtaining a measurement result of the measuring; sending the obtained measurement result of the measured cell and measurement object information of the measured cell to the base station via a measurement report. The technical solution provided by the present disclosure can effectively improve the accuracy of the measurement result, and enable the base station to distinguish different measurement results corresponding to different cells.