公开(公告)号：US20240195470A1

公开(公告)日：2024-06-13

申请号：US18547577

申请日：2021-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li

IPC: H04B7/06 ,  H04B7/0404 ,  H04B7/0456

CPC classification number: H04B7/0602 ,  H04B7/0404 ,  H04B7/0481

Abstract: In a method, a terminal device reports, to a network device, a full-power transmission codebook subset corresponding to a frequency band supported by the terminal device before transmission channel switching. The network device or the terminal device in a communications system may determine, according to a specified rule and full-power transmission codebook subsets corresponding to a plurality of source frequency bands, a full-power transmission codebook subset corresponding to a target frequency band after transmission channel switching. The plurality of source frequency bands are frequency bands in which a plurality of target antenna ports are located before antenna port switching, and the plurality of target antenna ports are antenna ports in the target frequency band after antenna port switching.

公开(公告)号：US20240107507A1

公开(公告)日：2024-03-28

申请号：US18255720

申请日：2021-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li

IPC: H04W72/0453 ,  H04L5/00 ,  H04W8/24

CPC classification number: H04W72/0453 ,  H04L5/0048 ,  H04W8/24

Abstract: A communication method includes sending capability information to a network device, where the capability information indicates antenna ports supported by P frequency domain units of a terminal device, and an antenna port supported by an ith frequency domain unit in the P frequency domain units includes an antenna port associated with the ith frequency domain unit and an antenna port that is in antenna ports associated with Ni frequency domain units in the P frequency domain units and that can be switched to the ith frequency domain unit.

公开(公告)号：US12149319B2

公开(公告)日：2024-11-19

申请号：US18039886

申请日：2021-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li

IPC: H04B7/06 ,  H04W72/0453 ,  H04W72/1268

Abstract: In accordance with an embodiment, a method includes sending a first message to a network device includes capability information of a terminal device that indicates antenna ports supported by P frequency domain units of the terminal device, and an antenna port supported by an ith frequency domain unit in the P frequency domain units includes an antenna port associated with the ith frequency domain unit and an antenna port that can be switched to the ith frequency domain unit in antenna ports associated with Ni frequency domain units in the P frequency domain units; and receiving configuration information from the network device, where the configuration information configures at least two sounding reference signal (SRS) resources for a first frequency domain unit of the terminal device, and the first frequency domain unit is associated with first uplink transmission configuration information.

公开(公告)号：US20240121805A1

公开(公告)日：2024-04-11

申请号：US18391055

申请日：2023-12-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bichai Wang ,  Yanqing Zhang ,  Xueru Li

IPC: H04W72/25 ,  H04W72/1263

CPC classification number: H04W72/25 ,  H04W72/1263

Abstract: This application relates to a communication method and device. A first terminal device sends first SCI in N first time units, where the first SCI indicates first configuration information, the first configuration information includes a resource of a first periodic transmission, the first periodic transmission includes M transmissions, a transmission cycle of the first periodic transmission is a first cycle, the M transmissions include P transmission time units, N is an integer greater than or equal to 1, M is an integer less than or equal to P, and P is an integer greater than N. The first terminal device sends, in N second time units, second SCI associated with the first SCI. The first terminal device does not need to send SCI for all transport blocks of a service of the first periodic transmission.

公开(公告)号：US20240302474A1

公开(公告)日：2024-09-12

申请号：US18604445

申请日：2024-03-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bichai Wang ,  Xueru Li

IPC: G01S1/04 ,  H03K5/04

CPC classification number: G01S1/0428 ,  H03K5/04

Abstract: A positioning signal sending method and apparatus are provided. A first signal is generated, where duration of a first rising edge of the first signal is less than duration of a first falling edge, the duration of the first rising edge is duration of a rising edge of a main lobe waveform of the first signal, and the duration of the first falling edge is duration of a falling edge of the main lobe waveform of the first signal; and the first signal is sent. In embodiments of this application, rising time of a main lobe waveform of a signal generated is short, and shorter rising time of the main lobe waveform is more conducive to distinguishing two adjacent paths or identifying a first arrival path of a received signal.

公开(公告)号：US20240022306A1

公开(公告)日：2024-01-18

申请号：US18265043

申请日：2021-12-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Hongli He ,  Xueru Li

IPC: H04B7/06

CPC classification number: H04B7/0634 ,  H04B7/0639

Abstract: In accordance with an embodiment, a communication method includes: sending, by a first device, a first reference signal of M (M>2) ports; and receiving, by the first device, first indication information that indicates a first precoding matrix in a target codebook. The first precoding matrix is associated with the first reference signal, and the target codebook includes at least one target precoding matrix that is a partially coherent precoding matrix or a coherent precoding matrix.

公开(公告)号：US20230413186A1

公开(公告)日：2023-12-21

申请号：US18036070

申请日：2021-11-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li

IPC: H04W52/24 ,  H04W52/38

CPC classification number: H04W52/241 ,  H04W52/383

Abstract: A first transmitting terminal sends a first channel state information-reference signal CSI-RS in N frequency domain units, where N is a positive integer. The first transmitting terminal detects channel state information CSI sent by K receiving terminals, where the CSI sent by the K receiving terminals is determined based on the first CSI-RS, and K is a positive integer. The first transmitting terminal updates a transmit power of the first transmitting terminal in the N frequency domain units based on the CSI sent by the K receiving terminals. When updated powers of F frequency domain units in the N frequency domain units are greater than a preset threshold, the first transmitting terminal sends user data in at least one of the F frequency domain units, where F is a positive integer less than or equal to N.

公开(公告)号：US20250106828A1

公开(公告)日：2025-03-27

申请号：US18971761

申请日：2024-12-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li

IPC: H04W72/0446 ,  H04L5/00

Abstract: A communication method includes a first device that generates a first ultra-wide band (UWB) frame, and sends the first UWB frame on a first channel. A first field of the first UWB frame includes a first-type preamble symbol, a second field of the first UWB frame includes a second-type preamble symbol, the first field is a first synchronization field in a synchronization header of the first UWB frame, and the second-type preamble symbol is used to perform channel access or resource selection. The first-type preamble symbol has a first-type format, and the second-type preamble symbol has a specific second-type format.

公开(公告)号：US12255711B2

公开(公告)日：2025-03-18

申请号：US18547577

申请日：2021-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li

IPC: H04B7/06 ,  H04B7/0404 ,  H04B7/0456

Abstract: In a method, a terminal device reports, to a network device, a full-power transmission codebook subset corresponding to a frequency band supported by the terminal device before transmission channel switching. The network device or the terminal device in a communications system may determine, according to a specified rule and full-power transmission codebook subsets corresponding to a plurality of source frequency bands, a full-power transmission codebook subset corresponding to a target frequency band after transmission channel switching. The plurality of source frequency bands are frequency bands in which a plurality of target antenna ports are located before antenna port switching, and the plurality of target antenna ports are antenna ports in the target frequency band after antenna port switching.

公开(公告)号：US20240097836A1

公开(公告)日：2024-03-21

申请号：US18521860

申请日：2023-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li ,  Yiru Kuang

IPC: H04L5/00 ,  H04B7/0413

CPC classification number: H04L5/001 ,  H04B7/0413 ,  H04L5/0098

Abstract: A terminal device reports first capability information to a network device, where the first capability information indicates that values of a maximum quantity of downlink MIMO layers supported by the terminal device on a first component carrier CC include a first maximum quantity M1 of downlink MIMO layers and a second maximum quantity M2 of downlink MIMO layers; and the terminal device receives first signaling sent by the network device, where the first signaling configures maximum MIMO layer quantity information corresponding to the first CC, and the maximum MIMO layer quantity information includes a first maximum quantity N1 of MIMO layers and a second maximum quantity N2 of MIMO layers.