PSACH Reference Resource Set for Sidelink Selection
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Solution Overview
Problem
In sidelink resource selection scenarios, there is a need to determine the appropriate physical channel or physical resource for transmitting a reference resource set from a first terminal to a second terminal to assist in resource selection.
Innovation Solution
The first terminal transmits a reference resource set to the second terminal through a Physical Sidelink Assistant Channel (PSACH), improving the resource selection performance of the second terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a reference resource set is transmitted to assist resource selection, then resource selection performance is improved, but the choice of physical channel or physical resource becomes uncertain
Solution Approach 1:
The patent introduces a Physical Sidelink Assistant Channel (PSACH) as an intermediary channel specifically for transmitting reference resource sets. This mediator channel resolves the uncertainty by providing a dedicated pathway that bridges the information needs of resource selection without requiring complex selection logic from the terminal devices.
2Reliability
If a dedicated channel is created for transmitting reference resource sets, then transmission reliability is improved, but channel configuration complexity increases
Solution Approach 1:
The PSACH is designed with multi-functionality, serving both as a channel for transmitting reference resource sets and as part of the overall sidelink communication framework. This universal design allows the channel to be configured within existing system parameters while providing dedicated functionality, thereby improving reliability without proportionally increasing configuration complexity.
Data Source
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AI summary
Provided are a wireless communication method and a terminal device. A first terminal can send a reference resource set to a second terminal by means of a PSACH, so as to improve the performance of the second terminal for resource selection. The wireless communication method comprises: a first terminal sending a reference resource set to a second terminal by means of a PSACH, wherein the reference resource set is used by the second terminal to perform resource selection or resource reselection, or the reference resource set is used for triggering the second terminal to perform resource selection or resource reselection.