RB-Set Detection for Consistent Sidelink LBT Failures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The technical problem of the present disclosure is to provide a method and device for performing sidelink communication in a wireless communication system, specifically addressing the detection of SL LBT in units of SL resource pool or/and RB set, and reporting information related to consistent SL LBT failure when triggered.
Innovation Solution
A method and device for detecting SL LBT failures by transmitting a MAC CE indicating consistent SL LBT failure to a base station, allowing the base station to identify the resource where the failure occurred in more detail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If SL LBT is detected in units of SL resource pool or RB set, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the SL LBT detection process by introducing RB set as a granular unit between the broader SL resource pool and the individual RB level. This segmentation enables more precise failure location identification while maintaining manageable detection complexity through structured reporting mechanisms.
2Loss of information
If MAC CE is transmitted to report consistent SL LBT failure, then loss of information is reduced, but use of energy increases
Solution Approach 1:
The patent implements a feedback mechanism where the UE reports consistent SL LBT failure information to the base station via MAC CE. This feedback loop enables the base station to adjust resource allocation and improve system reliability, justifying the energy consumption through enhanced communication efficiency.
3Productivity
If detailed RB set level LBT failure reporting is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent introduces dynamic failure detection thresholds and reporting triggers that activate only when consistent LBT failures are detected. This dynamic approach enables detailed RB set level monitoring to improve productivity while avoiding continuous complex detection operations, thereby reducing overall system complexity.
Data Source
AI summary
A method and a device for performing communication in a wireless communication system are disclosed. The method implemented by a first terminal, according to an embodiment of the present disclosure, comprises the steps of: receiving, from a base station, configuration information related to one or more resource block (RB) sets for sidelink (SL) transmission; and, on the basis of consistent SL listen before talk (LBT) failure being detected for a specific RB set among the one or more RB sets, transmitting a medium access control (MAC) control element (CE) related to the consistent SL LBT failure to the base station, wherein the MAC CE may contain information indicating that the consistent SL LBT failure has been detected for the specific RB set.