Sidelink Resource Avoidance in Wireless Terminal Devices
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Solution Overview
Problem
There is a conflict between communication on the sidelink and communication on the uplink and downlink in terminal devices, which affects communication performance.
Innovation Solution
A wireless communication method where a terminal device receives information about resources used by another terminal device for cellular and sidelink communication, and then performs sidelink communication on resources other than those indicated, thereby avoiding conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a terminal device communicates on sidelink and uplink/downlink simultaneously using shared communication resources, then resource utilization is improved, but communication conflicts occur between sidelink and cellular communication
Solution Approach 1:
The terminal device performs sensing operations in advance to detect resources already occupied by other devices before selecting resources for its own sidelink communication. This preliminary detection prevents resource conflicts with both cellular communication and other sidelink transmissions, resolving the contradiction between resource utilization and communication reliability
Solution Approach 2:
The terminal device uses sensing results as feedback to dynamically adjust its resource selection for sidelink communication. By continuously monitoring the channel and adapting resource choices based on detected occupancy, the system maintains high resource utilization while avoiding conflicts that would degrade communication performance
2Productivity
If a terminal device uses the same communication resources for both sidelink and cellular communication, then resource efficiency is improved, but power consumption increases due to conflict avoidance mechanisms
Solution Approach 1:
The terminal device performs sensing and resource selection in advance, allowing it to identify suitable resources without requiring continuous monitoring or complex conflict avoidance during actual transmission. This reduces real-time processing power while maintaining resource efficiency
Solution Approach 2:
The sensing mechanism allows the terminal device to autonomously identify and select appropriate resources for sidelink communication without requiring extensive network coordination or interference management. This self-service approach reduces signaling overhead and processing power consumption while maintaining efficient resource utilization
Data Source
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AI summary
Embodiments of the present application provide a wireless communication method and a terminal device, which can avoid a communication conflict between a side link and an uplink and a downlink, thereby improving the communication performance on the side link and the uplink and the downlink. The wireless communication method comprises: a first terminal device receiving first information sent by a second terminal device, wherein the first information is used to indicate first resources and/or second resources, the first resources are resources used by the second terminal device to perform cellular communication, and the second resources are resources used by the second terminal device to perform sidelink communication with a third terminal device; and the first terminal device performing, on resources other than the resources indicated by the first information, sidelink communication with the second terminal device.