Sidelink Positioning Discovery With Targeted Response Filtering
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Solution Overview
Problem
Existing sidelink-based positioning methods result in excessive signaling overhead and power consumption due to unconstrained discovery requests, leading to a 'signaling storm' as all nearby devices respond to unspecific discovery messages.
Innovation Solution
A sidelink-based positioning method where a first terminal device transmits a message with specific characteristic information required of the target terminal device, limiting responses only to those that meet these criteria, thereby reducing unnecessary signaling and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal device transmits a discovery request without specifying characteristic information, then all nearby devices can respond to the request, ensuring comprehensive device discovery, but signaling overhead and power consumption increase excessively due to unnecessary responses
Solution Approach 1:
The discovery request message incorporates characteristic information fields that specify local requirements for target devices. Instead of receiving responses from all nearby devices, only devices matching the specified characteristics (such as device type, capability, or service requirements) respond. This localizes the response behavior to reduce unnecessary signaling and energy consumption while maintaining targeted discovery capability.
2Adaptability or versatility
If a terminal device transmits a discovery request without specifying characteristic information, then all nearby devices can respond to the request, ensuring comprehensive device discovery, but signaling overhead increases excessively due to unnecessary responses
Solution Approach 1:
The discovery request message incorporates characteristic information fields that specify local requirements for target devices. Instead of receiving responses from all nearby devices, only devices matching the specified characteristics (such as device type, capability, or service requirements) respond. This localizes the response behavior to reduce unnecessary signaling and energy consumption while maintaining targeted discovery capability.
3Adaptability or versatility
If a terminal device transmits a discovery request without specifying characteristic information, then all nearby devices can respond to the request, but the number of response messages increases excessively
Solution Approach 1:
The discovery request message incorporates characteristic information fields that specify local requirements for target devices. Instead of receiving responses from all nearby devices, only devices matching the specified characteristics (such as device type, capability, or service requirements) respond. This localizes the response behavior to reduce unnecessary signaling and energy consumption while maintaining targeted discovery capability.
Data Source
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AI summary
Disclosed in the embodiments of the present disclosure are sidelink-based positioning methods, and apparatuses, which can be applied to the technical field of communications. A method executed by a first terminal device comprises: sending a first message, the first message being used for discovering a target terminal device, and the first message comprising first feature information that the target terminal device requested by the first terminal device should have. Therefore, the present disclosure avoids the situation of the first terminal device receiving a large amount of response information, thus reducing signaling overheads and power consumption of the first terminal device.