Sidelink COT-Based Channel Selection for SL-U Resource Allocation
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Solution Overview
Problem
The challenge of efficiently performing sidelink interface resource allocation in the Channel Occupancy Time (COT) sharing mechanism within sidelink unlicensed (SL-U) communication is unresolved.
Innovation Solution
A method and apparatus that involve receiving and utilizing COT information to select destination IDs and logical channels based on channel access priority class (CAPC) values, ensuring that the selected channels align with the COT information to facilitate smooth resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If COT sharing mechanism is implemented in sidelink unlicensed communication, then channel utilization efficiency is improved, but resource allocation complexity increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting channel access priority class (CAPC) values based on COT information. The terminal modifies transmission parameters such as power, time resources, and frequency resources according to the received COT indication and CAPC values, enabling efficient resource allocation within the shared channel occupancy time while managing complexity through structured parameter adjustment rules
Solution Approach 2:
The patent implements preliminary action by having the network device pre-allocate COT information and CAPC values to terminals before actual data transmission. The terminal receives and stores COT indication information in advance, which includes pre-defined channel access priorities and resource allocation rules, allowing the terminal to perform resource selection without complex real-time calculations during transmission
2Adaptability or versatility
If multiple destination IDs are supported in COT sharing, then communication versatility is improved, but selection difficulty increases
Solution Approach 1:
The patent applies local quality by associating different CAPC values with different destination IDs or logical channels. Each destination ID or logical channel is assigned a specific channel access priority class, allowing the terminal to make localized selection decisions based on the CAPC values rather than evaluating all possible destinations globally. This reduces selection difficulty while maintaining support for multiple destinations
Data Source
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AI summary
An information processing method and apparatus, an information transmission method and apparatus, and a terminal are provided in the present disclosure. The information processing method is performed by a first terminal, and comprises: receiving Channel Occupancy Time (COT) information from at least one destination identifier (ID); and performing selection of a first object based on the COT information, wherein the first object comprises a destination ID and/or a logical channel.