Sidelink Auxiliary Resource Subset Reporting for Lower Signaling Overhead
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Solution Overview
Problem
The existing sidelink communication systems face high signaling overhead due to the transmission of large auxiliary resource sets by user equipment (UE) in mode 2 resource selection, which is inefficient and resource-intensive.
Innovation Solution
A method for determining an auxiliary resource set that involves selecting a subset of time-frequency resources from a candidate set, reducing the number of resources reported to UE B, thereby minimizing signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE A sends the sensed auxiliary resource set to UE B, then UE B can use these resources for data transmission, but the signaling overhead becomes large due to the large amount of resources in the sensed auxiliary resource set
Solution Approach 1:
The patent segments the auxiliary resource set into two parts: a first auxiliary resource set with a larger number of resources for reliability, and a second auxiliary resource set with a smaller number of resources for efficiency. This segmentation allows the system to balance between providing sufficient resources for reliable transmission and reducing the signaling overhead by not transmitting all resources
Solution Approach 2:
The patent extracts only the necessary portion of the auxiliary resource set for transmission. Instead of sending the entire sensed resource set, the system selects and transmits only a subset (the second auxiliary resource set) that is sufficient for UE B's needs, thereby reducing signaling overhead while maintaining transmission reliability
2Adaptability or versatility
If UE A reports all sensed resources to UE B, then UE B has more resource options, but the resource selection efficiency decreases due to increased processing complexity
Solution Approach 1:
The patent applies partial action by providing UE B with a subset of resources rather than all sensed resources. The second auxiliary resource set contains enough resources to ensure flexible and reliable transmission without the excessive burden of processing the complete resource set, thus improving resource selection efficiency while maintaining adaptability
Data Source
AI summary
A method for determining an auxiliary resource set is performed by a first device, and includes: determining an auxiliary resource set, wherein the auxiliary resource set includes a part of time frequency resources in a candidate resource set sensed by the first device.