User Equipment Sidelink Positioning Resource Segmentation
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Solution Overview
Problem
The limited resources of the sidelink interface in communication technologies hinder efficient and accurate positioning, necessitating an improvement in positioning efficiency.
Innovation Solution
A positioning method where a user equipment (UE) acquires a positioning request configured to indicate the sending of positioning information at a sidelink interface and sends this information accordingly, optimizing resource usage and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If positioning is performed using the sidelink interface, then positioning functionality is enabled, but resource limitations reduce positioning efficiency and accuracy
Solution Approach 1:
The positioning information transmission is segmented into two paths: critical positioning information is transmitted through the sidelink interface using granted resources, while non-critical positioning information is transmitted through the uplink interface. This segmentation allows the system to maintain positioning accuracy while respecting the limited sidelink resources.
Solution Approach 2:
The network device grants uplink resources that serve dual purposes: they can be used for general uplink communication and simultaneously for transmitting positioning information. This multi-functionality resolves the resource conflict by making the granted resources serve both communication and positioning functions, thereby improving positioning efficiency without exhausting dedicated sidelink resources.
2Measurement precision
If more positioning information is transmitted at the sidelink interface, then positioning accuracy improves, but resource consumption increases
Solution Approach 1:
Instead of transmitting all positioning information through the energy-constrained sidelink interface, the system transmits only the essential positioning information partially through sidelink, and completes the transmission of remaining positioning information through the uplink interface using granted resources. This partial action approach achieves sufficient positioning precision while minimizing sidelink resource consumption and energy loss.
3Adaptability or versatility
If the sidelink interface is used for positioning, then positioning capability is achieved, but resource availability is limited
Solution Approach 1:
The network device acts as an intermediary that manages resource allocation between sidelink and uplink interfaces. It grants uplink resources to UEs specifically for positioning information transmission, thereby mediating the resource constraint problem. This intermediary mechanism enables positioning capability while preventing exhaustion of limited sidelink resources by providing alternative uplink resources.
Data Source
AI summary
A positioning method is performed by a first user equipment (UE). The method includes: acquiring a positioning request sent by a communication device, wherein the positioning request is configured to indicate the first UE to send positioning information at a sidelink interface; and sending the positioning information at the sidelink interface.