公开(公告)号：US20240129900A1

公开(公告)日：2024-04-18

申请号：US18390644

申请日：2023-12-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuqiang Xu ,  Lei Wang ,  Fan Wei ,  Yan Chen

IPC: H04W72/044

CPC classification number: H04W72/044

Abstract: A first communication apparatus receives resource configuration information from a second communication apparatus, where the resource configuration information includes a first resource that is configured by the second communication apparatus for the first communication apparatus for data transmission. The first communication apparatus releases, based on a preset condition, a second resource to which a first synchronization signal block SSB is mapped, where the second resource is a dedicated resource of the first communication apparatus, and the first resource includes the second resource.

公开(公告)号：US11723020B2

公开(公告)日：2023-08-08

申请号：US17208835

申请日：2021-03-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuqiang Xu ,  Yan Chen ,  Yinggang Du

IPC: H04W72/12 ,  H04W72/14 ,  H04W72/04 ,  H04W72/1268 ,  H04W72/23

CPC classification number: H04W72/1268 ,  H04W72/04 ,  H04W72/23

Abstract: A data transmission method, a terminal, and a network device are provided. In embodiments of the present disclosure, a terminal sends, in a grant-free mode, first data to a network device by using a grant-free resource, and if the terminal needs to switch from the grant-free mode to a grant mode, the terminal sends, in the grant mode, second data to the network device by using a grant resource. When the terminal initially transmits the first data in the grant-free mode, if the terminal needs to switch from the grant-free mode to the grant mode, the terminal may fall back to the grant mode and transmit data in the grant mode.

公开(公告)号：US11611967B2

公开(公告)日：2023-03-21

申请号：US16935627

申请日：2020-07-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yiqun Wu ,  Yan Chen ,  Lei Wang

IPC: H04W56/00 ,  H04W72/044 ,  H04W76/11 ,  H04B7/0456 ,  H04L27/26 ,  H04W72/0446 ,  H04W72/0453

Abstract: This application provides example scrambling-based data transmission methods and apparatuses. A scrambling manner is determined based on a sending waveform. The scrambling manner can include frequency domain scrambling, time domain scrambling, or time-frequency domain scrambling. To-be-scrambled data can be scrambled based on the scrambling manner, to obtain scrambled output data. The scrambled output data can be sent. The sending waveform can be a discrete Fourier transform spreading orthogonal frequency division multiplexing (DFT-s-OFDM) waveform or a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform.

公开(公告)号：US11419151B2

公开(公告)日：2022-08-16

申请号：US16866731

申请日：2020-05-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Wang ,  Yan Chen ,  Xiuqiang Xu ,  Yiqun Wu ,  Yi Wang

IPC: H04W74/08 ,  H04W74/00

Abstract: A communications method and apparatus, the method including sending, by a terminal device, a random access request to a network device, where the random access request comprises a random access preamble and uplink data, receiving, by the terminal device, a random access response sent by the network device, and performing, by the terminal device, a state transition AND/OR operation corresponding to a message format of the random access response.

公开(公告)号：US20220225465A1

公开(公告)日：2022-07-14

申请号：US17707614

申请日：2022-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoying Xu ,  Qinghai Zeng ,  Mingzeng Dai ,  Qufang Huang ,  Chong Lou ,  Yan Chen

IPC: H04W76/27 ,  H04W76/34 ,  H04W24/02

Abstract: Embodiments of this application provide a configuration method and apparatus. When indicating, by using an RRC connection release message, a terminal to enter an inactive state from a connected state, a network device may include, in the RRC connection release message, a configuration parameter allocated to the terminal in the inactive state. That is, the terminal receives the radio resource control RRC connection release message sent by the network device, where the RRC connection release message includes first information used to indicate a target configuration parameter. In this way, the terminal may enter the inactive state based on the RRC connection release message, and determine a context parameter of the inactive state based on the first information, so that the configuration parameter is properly allocated to the terminal in the inactive state.

公开(公告)号：US11271787B2

公开(公告)日：2022-03-08

申请号：US16811139

申请日：2020-03-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Wang ,  Yan Chen ,  Xiuqiang Xu ,  Lei Zhang ,  Xiaoyan Bi

IPC: H04W76/27 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  H04W80/02

Abstract: This application provides a method for generating a pilot signal, including: obtaining, by a terminal device, a correlation identifier and a port number; determining, by the terminal device, a pilot sequence based on the correlation identifier; and generating, by the terminal device, the pilot signal based on the pilot sequence and the port number. The correlation identifier indicates how a pilot sequence is determined and whether the pilot sequence is correlated with a time slot.

公开(公告)号：US11265899B2

公开(公告)日：2022-03-01

申请号：US16800803

申请日：2020-02-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuqiang Xu ,  Lei Wang ,  Shunqing Zhang ,  Yan Chen

IPC: H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04W72/00

Abstract: Embodiments disclose an uplink data transmission method and apparatus. The method includes: determining M transmission areas allocated to a terminal device, and generating first information used to indicate the M transmission areas, where M is a positive integer, and the transmission area represents an air interface time-frequency resource that includes a time range and a frequency range that are specified by a communications system. The method also includes determining, for each transmission area of the M transmission areas, second information used to indicate a transport block size. The method also includes sending an indication message to the terminal device, so that the terminal device transmits uplink data according to the indication message, where the indication message includes the first information and the second information.

公开(公告)号：US11212054B2

公开(公告)日：2021-12-28

申请号：US16546664

申请日：2019-08-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuqiang Xu ,  Yan Chen ,  Lei Wang ,  Yinggang Du

IPC: H04W72/02 ,  H04L5/00 ,  H04L27/00 ,  H04W72/04

Abstract: A data transmission method and apparatus for determining a transport block size, the method including obtaining, by a first device, a first parameter, where the first parameter is used to indicate a quantity of resource elements included in a resource mapping unit, determining, by the first device, a first transport block size based on the first parameter, and transmitting, by the first device, data based on the first transport block size.

公开(公告)号：US11108597B2

公开(公告)日：2021-08-31

申请号：US16515665

申请日：2019-07-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meng Cheng ,  Xiuqiang Xu ,  Yiqun Wu ,  Yan Chen

IPC: H04L25/02 ,  H04J11/00 ,  H04L5/00

Abstract: Example data transmission methods and apparatus are described. One example method includes obtaining at least two signature sequences used to perform multiple access for at least two to-be-sent data packets by a user equipment. The user equipment processes the at least two data packets by respectively using corresponding signature sequences, to obtain at least two transmit sequences. The user equipment sends the at least two transmit sequences to a network device on a same time-frequency resource. Then the network device obtains the at least two signature sequences used by the user equipment to send the at least two transmit sequences, and separately detects a corresponding transmit sequence based on each signature sequence, to obtain the at least two data packets. The user equipment can transmit a plurality of data packets on a same time-frequency resource in a same slot.

公开(公告)号：US10931416B2

公开(公告)日：2021-02-23

申请号：US16460892

申请日：2019-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiuqiang Xu ,  Yan Chen ,  Liqing Zhang ,  Yi Wang

IPC: H04W72/04 ,  H04L5/00

Abstract: Embodiments of this application provide a data transmission method, a network device, and a terminal device. The method may include detecting, by a network device, a first signal in an uplink signal. The method may also include determining, by the network device, a signal structure of the uplink signal based on a result of detecting the first signal. Furthermore, the method may include receiving, by the network device, the uplink signal based on the signal structure, and/or responding to the uplink signal based on the signal structure. According to the data transmission method in the embodiments of this application, before receiving data, the network device can determine the signal structure, used by the terminal device, of the uplink signal, and then use a corresponding receiving method to avoid complexity and a reliability risk that are caused by completely blind detection performed by the network device, as well as to effectively reduce a delay and signaling overheads.