Sidelink Positioning via Anchor Device Location Information
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Solution Overview
Problem
In New Radio (NR) networks, sidelink positioning is not feasible as the sidelink cannot be used to determine the location of a target terminal with positioning requirements.
Innovation Solution
A wireless communication method where a terminal device or a network device determines the location information of the terminal device based on the location information of M anchor devices, enabling sidelink positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sidelink communication is used in NR network, then device-to-device communication capability is improved, but positioning functionality of target terminal cannot be achieved
Solution Approach 1:
The patent introduces anchor devices as intermediary elements that enable positioning in sidelink communication. These anchor devices serve as reference points that the target terminal can measure and use to calculate its position, thereby mediating between the sidelink communication capability and positioning functionality requirement
Solution Approach 2:
The patent makes anchor devices perform multiple functions: they participate in sidelink communication while simultaneously providing positioning reference signals and serving as reference points for position calculation. This multi-functionality resolves the contradiction by enabling both communication and positioning through the same sidelink infrastructure
2Measurement precision
If location information of M anchor devices is obtained and processed, then positioning accuracy is improved, but communication complexity increases
Solution Approach 1:
The patent uses M anchor devices where M is a positive integer, allowing flexible selection of the number of anchors based on required positioning accuracy. The system can use minimal necessary anchors (partial action) or more anchors for higher accuracy (excessive action), balancing positioning precision against communication complexity dynamically
Data Source
AI summary
Embodiments of this application provide a wireless communication method and a device. The wireless communication method includes: obtaining by a terminal device, location information of M anchor devices, where the location information of the M anchor devices is used to determine location information of the terminal device; and M is a positive integer.