公开(公告)号：US20240314761A1

公开(公告)日：2024-09-19

申请号：US18679304

申请日：2024-05-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W72/115 ,  H04W28/26 ,  H04W72/044

CPC classification number: H04W72/115 ,  H04W28/26 ,  H04W72/044

Abstract: A communication method for reducing resource overheads and improving decoding efficiency, is applied to a communication system. The method includes: a terminal device sends resource reservation information, where the resource reservation information is used to reserve a grant-free resource; and the terminal device sends data on an actually reserved grant-free resource.

公开(公告)号：US11381340B2

公开(公告)日：2022-07-05

申请号：US17212263

申请日：2021-03-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L1/00 ,  H04L1/04

Abstract: Embodiments of this application provide a data transmission method and apparatus and a storage medium. The method includes: After obtaining a first identifier and a second identifier that uniquely identify a first device, the first device scrambles, by using the first identifier, checked data obtained through CRC check. After performing channel coding on to-be-transmitted data and scrambled checked data, the first device scrambles, by using the second identifier, coded data obtained through channel coding, and finally sends scrambled data. In this way, after receiving the scrambled data, a second device may perform descrambling by using the second identifier, and then perform CRC check, to determine whether the received data is correct and determine the first identifier of the first device.

公开(公告)号：US11153028B2

公开(公告)日：2021-10-19

申请号：US16400377

申请日：2019-05-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yinggang Du ,  Yan Chen ,  Xiuqiang Xu

IPC: H04L1/00 ,  H04L5/00 ,  H04W52/14 ,  H04W72/08 ,  H04W72/04 ,  H04W74/08

Abstract: A grant-free transmission method, a terminal, and a network device are disclosed. In an embodiment, a grant-free transmission method includes sending, by a network device, information about P dedicated transmission resources used for grant-free transmission to a terminal, wherein P is a positive integer and P≥2, detecting, by the network device, a dedicated transmission resource, and detecting, by the network device, data based on a transmission parameter set corresponding to the dedicated transmission resource when grant-free transmission is detected.

公开(公告)号：US10924211B2

公开(公告)日：2021-02-16

申请号：US16452107

申请日：2019-06-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Wang ,  Xiuqiang Xu ,  Yan Chen

IPC: H04L1/00 ,  H04L5/00 ,  H04L27/36

Abstract: Embodiments of this application provide a data transmission method and device, so as to increase an uplink/downlink data transmission throughput. The method includes: splitting a to-be-transmitted transport block into N code blocks with incompletely equal sizes, where N is an integer greater than or equal to 2; performing error correction coding on the N code blocks to obtain N encoded bit blocks; and non-orthogonally transmitting the N encoded bit blocks by using resources that are the same in at least one dimension of a time domain, a frequency domain, a space domain, and a code domain.

公开(公告)号：US20200267775A1

公开(公告)日：2020-08-20

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：US10660123B2

公开(公告)日：2020-05-19

申请号：US15872991

申请日：2018-01-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiuqiang Xu ,  Yan Chen ,  Yalin Liu

IPC: H04W74/00 ,  H04W76/11 ,  H04W72/04 ,  H04W16/04

Abstract: The present invention discloses a method and an apparatus for obtaining configuration information of a grant-free transmission unit. A centrally configured network element sends configuration information of a grant-free transmission unit of an access device to the access device, where the grant-free transmission unit refers to a transmission resource used for grant-free transmission, and the configuration information of the grant-free transmission unit includes at least one or more of the following information: information about the grant-free transmission unit or information about a grant-free transmission control mechanism. By using the method and the apparatus for obtaining configuration information of a grant-free transmission unit, an access device can obtain configuration information of a grant-free transmission unit.

公开(公告)号：US10554328B2

公开(公告)日：2020-02-04

申请号：US15858843

申请日：2017-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiuqiang Xu ,  Yalin Liu ,  Yan Chen

IPC: H04L1/00 ,  H04W72/04 ,  H04W74/08 ,  H04L5/00

Abstract: Embodiments of the present invention provide a data transmission method and apparatus. The method includes: determining a contention transmission unit CTU to be used by to-be-sent uplink data, where the CTU is a transmission resource including at least a time domain resource, a frequency domain resource, and a code domain resource; encoding the to-be-sent uplink data by using N different code element groups in the code domain resource corresponding to the determined CTU, to obtain N groups of encoded data, where N is a positive integer greater than or equal to 2; and sending the N groups of encoded data by using the time domain and frequency domain resources that are corresponding to the determined CTU. According to the embodiments of the present invention, data reception reliability at a receive end can be improved.

公开(公告)号：US20200015260A1

公开(公告)日：2020-01-09

申请号：US16557060

申请日：2019-08-30

Applicant: Huawei Technologies Co., Ltd.

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

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

Abstract: Methods and systems for dynamically activate and deactivate an allocated resource for a UE to make grant-free uplink transmission are provided. In one embodiment, a user equipment (UE) receives a Radio Resource Control (RRC) signal. The RRC signal specifies grant-free (GF) configuration information. The GF configuration information comprises an activation field and at least one other GF resource configuration field. The activation field indicates whether the UE may perform GF uplink (UL) transmissions without waiting for a downlink control information (DCI) message. Then, the UE performs a GF UL transmission in accordance with the GF configuration information in the RRC signal.

公开(公告)号：US10264601B2

公开(公告)日：2019-04-16

申请号：US15687293

申请日：2017-08-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Wang ,  Xiuqiang Xu ,  Yan Chen

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04B7/00 ,  H04B7/0452 ,  H04B7/0456 ,  H04L1/00 ,  H04L25/00

Abstract: The present disclosure describes a downlink control information transmission method and apparatus. The method includes: determining multiple terminal devices used for downlink scheduling; determining downlink control information used by the multiple terminal devices to receive downlink data flows, where the downlink control information includes common control information shared by the multiple terminal devices, dedicated control information of each of the multiple terminal devices, and device identifier information of each terminal device, and an order of the device identifier information of each terminal device is the same as an order of the dedicated control information of each terminal device; and sending the downlink control information to the multiple terminal devices.

公开(公告)号：US10063358B2

公开(公告)日：2018-08-28

申请号：US15172928

申请日：2016-06-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuqiang Xu ,  Shunqing Zhang ,  Gaoning He

IPC: H04L5/00 ,  H04W72/04 ,  H04W84/04

CPC classification number: H04L5/0048 ,  H04L5/0053 ,  H04W72/0446 ,  H04W84/042

Abstract: Embodiments of this application disclose a pilot signal sending and receiving method and apparatus, wherein the pilot signal sending method includes: establishing a first correspondence between a carrier identifier and a pilot pattern of a first type of pilot signal; establishing a second correspondence between a carrier identifier and a resource block set; acquiring a target carrier identifier of a target carrier; determining a location of a target resource block set corresponding to the target carrier identifier; determining a target pilot pattern that is of a first type of pilot signal and that corresponds to the target carrier identifier; mapping, according to the target pilot pattern, the first type of pilot signal to each resource block in the target resource block set on the target carrier. In this method, mapping is performed on a pilot signal only in a resource block set, which may reduce pilot redundancy and overheads.