公开(公告)号：US11996965B2

公开(公告)日：2024-05-28

申请号：US17687082

申请日：2022-03-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qianli Ma ,  Fengwei Liu

IPC: H04L5/00 ,  H04L25/03 ,  H04L27/26

CPC classification number: H04L27/26025 ,  H04L5/0094 ,  H04L25/03828 ,  H04L27/2636 ,  H04L27/2644

Abstract: Embodiments of this application provide a signal transmission method and a communication apparatus in a multi-waveform scenario, and are applied to a scenario in which a single-carrier waveform and a multi-carrier waveform coexist. In this method, a network device indicates, via first indication information, a terminal device to transmit a signal by using transmission parameters corresponding to the first indication information, so that the terminal device transmits the signal by using the specified transmission parameters. Transmission parameters includes at least two of a transmission bandwidth, an extended bandwidth, or a total bandwidth. According to the embodiments of this application, a transmit end may perform sending by using the single-carrier waveform, and a receive end may perform receiving by using the multi-carrier waveform; or a transmit end may perform sending by using the multi-carrier waveform, and a receive end may perform receiving by using the single-carrier waveform.

公开(公告)号：US20240113836A1

公开(公告)日：2024-04-04

申请号：US18541610

申请日：2023-12-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huang Huang ,  Kuandong Gao ,  Qianli Ma

IPC: H04L5/00 ,  H04B17/309 ,  H04L1/00 ,  H04L27/26

CPC classification number: H04L5/0051 ,  H04B17/346 ,  H04L1/0003 ,  H04L27/261

Abstract: A method includes a transmitting end sending a first signal that includes a data signal and a reference signal. A first imaginary reference signal in the reference signal is located at a real signal location of the first signal, and/or a first real reference signal in the reference signal is located at an imaginary signal location of the first signal; and the reference signal is used for phase noise estimation.

公开(公告)号：US11843485B2

公开(公告)日：2023-12-12

申请号：US17731326

申请日：2022-04-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu ,  Qianli Ma

IPC: H04L25/08 ,  H04L27/26

CPC classification number: H04L25/08 ,  H04L27/2607

Abstract: This application provides example symbol processing methods and apparatuses. One example method includes generating a first symbol in a symbol sequence, where the first symbol and a second symbol have a same first symbol component, a start location of the first symbol component in the first symbol is a start location of the first symbol, a start location of the first symbol component in the second symbol is a location at which a cyclic prefix is truncated in the second symbol, the second symbol is a next symbol adjacent to the first symbol, and the first symbol and the second symbol each has a cyclic prefix. The first symbol can then be sent.

公开(公告)号：US12301397B2

公开(公告)日：2025-05-13

申请号：US17733783

申请日：2022-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qianli Ma ,  Fengwei Liu ,  Huang Huang

IPC: H04L27/26

Abstract: A symbol processing method and apparatus are provided. The method includes: obtaining, based on a plurality of complex-valued symbols, a first set corresponding to a first transmit symbol and a second set corresponding to a second transmit symbol; performing a copy operation on the first set and the second set, so that both the first set and the second set have a first complex-valued symbol; performing signal processing on the first set and the second set; and performing phase adjustment on the first transmit symbol and/or the second transmit symbol after the signal processing, to ensure that a symbol component whose end position is the first reference point in the first transmit symbol is the same as a symbol component whose end position is the second reference point in the second transmit symbol. This application can ensure that an inter-symbol guard period is flexibly configured.

公开(公告)号：US20240388411A1

公开(公告)日：2024-11-21

申请号：US18789057

申请日：2024-07-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qianli Ma ,  Huang Huang

IPC: H04L5/00 ,  H04W72/0446 ,  H04W72/0453

Abstract: This application provides a symbol processing method and apparatus. The method includes: A transmitting end generates a first transmit symbol and a second transmit symbol. A length of a cyclic prefix of the first transmit symbol is greater than a length of a cyclic prefix that corresponds to a subcarrier spacing of the first transmit symbol. The transmitting end sends the first transmit symbol and the second transmit symbol. The first transmit symbol and the second transmit symbol are consecutive in time domain. The first transmit symbol is located after the second transmit symbol. The first transmit symbol is a symbol that carries a reference signal, and the second transmit symbol is a symbol that carries a data signal.