公开(公告)号：US20250016702A1

公开(公告)日：2025-01-09

申请号：US18886217

申请日：2024-09-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei WANG ,  Qian YU ,  Kang WANG ,  Fangli LIANG

IPC: H04W56/00 ,  H04B1/7163 ,  H04L25/02

Abstract: This application provides example ultra-wideband (UWB) signal synchronization methods and example communication apparatuses. One example method includes processing a narrowband signal to obtain time-frequency synchronization information of the narrowband signal. A synchronization signal of an UWB signal can be processed based on the time-frequency synchronization information of the narrowband signal to obtain time-frequency synchronization information of the UWB signal, where the UWB signal includes the synchronization signal and a ranging signal. The ranging signal can be received based on the time-frequency synchronization information of the UWB signal.

公开(公告)号：US20250012913A1

公开(公告)日：2025-01-09

申请号：US18896041

申请日：2024-09-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shu PENG ,  Kang WANG ,  Shichang HU ,  Qian YU

IPC: G01S13/76 ,  G01S13/02

Abstract: Example ranging methods and apparatus are described. In one example method, a first device sends ranging control information to a second device through a first channel, where the ranging control information is used to configure a ranging frame. The first device receives or sends the ranging frame through a second channel, where a bandwidth of the second channel is greater than a bandwidth of the first channel. Based on the foregoing solution, the first device and the second device may exchange the ranging control information and a measurement result through the first channel, and perform ranging through the second channel.

公开(公告)号：US20250119322A1

公开(公告)日：2025-04-10

申请号：US18982284

申请日：2024-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qian YU ,  Shichang HU ,  Chao MA

IPC: H04L25/02 ,  H04L5/00 ,  H04L25/03

Abstract: The present disclosure relates to signal transmission methods, apparatuses, and systems. One example method includes sending a narrow band signal to a receive end, where the narrow band signal is used by the receive end to determine initial time-frequency synchronization information, and sending an ultra-wideband signal to the receive end, where the ultra-wideband signal includes a channel impulse response training sequence (CTS) field, the CTS field is used by the receive end to determine a channel impulse response, the CTS field includes at least one CTS symbol, and the CTS symbol includes at least one first preamble symbol or is generated by spreading at least one first preamble symbol.

公开(公告)号：US20250015832A1

公开(公告)日：2025-01-09

申请号：US18891447

申请日：2024-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yifei YANG ,  Qian YU ,  Ju Yan PAN ,  Changzheng MA ,  Zhongjun WANG ,  Lee Guek Doreen YEO

IPC: H04B1/692 ,  H04L25/02 ,  H04L27/26

Abstract: The present disclosure relates to signal transmission methods and apparatuses. One example method includes spreading a preamble symbol based on a first spreading code sequence to generate a first signal, and sending the first signal to a receiver. The first signal is used to determine a channel impulse response. The first spreading code sequence includes a plurality of spreading code groups, each spreading code group includes a plurality of same spreading codes and at least one guard symbol, at least one of a first bit or a last bit of each spreading code group is a guard symbol, and the plurality of spreading code groups include at least two spreading code groups with different spreading codes.