Invention Application
- Patent Title: SIDELINK POSITIONING BASED ON PHYSICAL RANGING SIGNALS
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Application No.: US17741743Application Date: 2022-05-11
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Publication No.: US20220272634A1Publication Date: 2022-08-25
- Inventor: Chang-Sik CHOI , Kapil Gulati , Sudhir Kumar Baghel , Urs Niesen , Jubin Jose , Anantharaman Balasubramanian
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Main IPC: H04W52/02
- IPC: H04W52/02 ; H04W4/46 ; H04W4/02 ; H04W48/10 ; H04W56/00

Abstract:
A user equipment (UE) in a vehicle (V-UE) broadcasts multi-phased ranging signals with which other entities may determine the range to the V-UE. The multi-phased ranging signals may include a first message, which may be broadcast in the Intelligent Transport System (ITS) spectrum, includes ranging information, such as a source identifier, location information for the broadcasting V-UE, and an expected time of broadcast of the ranging signal. The ranging signal may then be broadcast at the expected time and may include the source identifier. A second message, which be broadcast in the ITS spectrum, may include clock error information for the V-UE. A receiving entity may determine the range to the V-UE based on the time of arrival of the ranging signal and the expected time of transmission, as well as the clock error information. The receiving entity may further generate a position estimate based on the received location information.
Public/Granted literature
- US11849394B2 Sidelink positioning based on physical ranging signals Public/Granted day:2023-12-19
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