Sidelink COT Sharing Resource Selection for Reliable UE Transmission
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Solution Overview
Problem
In sidelink communication, the user equipment (UE) faces challenges in selecting transmission resources under a channel occupancy time (COT) sharing mechanism, leading to potential failures in COT sharing and unreliable data transmission.
Innovation Solution
The UE receives COT sharing information from a second UE, determines if it can share the indicated COT based on the information or a preset threshold, and selects a transmission resource within a first time window during the COT, ensuring the UE can use the shared resources effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UE performs random resource selection from candidate resource set, then resource allocation flexibility is improved, but transmission reliability deteriorates due to potential COT sharing failures
Solution Approach 1:
The patent applies preliminary action by having the first UE determine whether it can share the COT of the second UE before performing random resource selection. The UE evaluates COT sharing information and preset conditions in advance to identify valid candidate resources within the second UE's COT, ensuring that selected resources are guaranteed to be usable. This pre-validation mechanism prevents COT sharing failures during actual transmission, resolving the contradiction between resource allocation flexibility and transmission reliability.
2Productivity
If UE shares COT with other UEs, then resource utilization efficiency is improved, but resource selection complexity increases
Solution Approach 1:
The patent applies parameter changes by introducing specific evaluation criteria for COT sharing, such as comparing time window overlaps and resource availability parameters. The first UE changes the state of resource selection from completely random to conditionally valid based on COT sharing parameters. By establishing clear parameter thresholds and validation rules, the patent enables efficient multi-UE COT sharing while keeping the selection process manageable through structured parameter comparison rather than exhaustive complexity.
3Object-affected harmful factors
If UE performs resource exclusion to determine candidate resource set, then interference avoidance is improved, but resource selection range is reduced
Solution Approach 1:
The patent applies the intermediary principle by using COT sharing information as a mediator between interference avoidance and resource selection range. The COT framework acts as an intermediate layer that defines valid resource windows, allowing UEs to share resources within the COT boundary without causing interference. This intermediary mechanism enables the first UE to select from a broader range of resources within the second UE's COT time window while still avoiding interference through the structured COT sharing validation process.
Data Source
AI summary
A method for resource selection is provided. The method for resource selection includes: receiving channel occupancy time (COT) sharing information from a second UE; determining, according to at least one of the COT sharing information or a preset threshold, whether a first UE can share a COT indicated by the COT sharing information; and selecting, in a case where the first UE can share the COT, a transmission resource of the first UE from a time window that the first UE can use within the COT.