Beam Formed Partial Sensing for Sidelink Resource Selection
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Solution Overview
Problem
Current wireless communication technologies, such as 5G NR and LTE, face challenges in efficiently managing sidelink communications due to high power consumption during full sensing for resource selection, which can lead to unnecessary resource waste and power duplication.
Innovation Solution
Implementing partial sensing techniques, where user equipment (UE) monitors for sidelink transmissions using multiple beams during only parts of a sensing window, reducing power consumption and optimizing resource selection by decoding sidelink control indicators (SCIs) within a reduced resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If full sensing is performed by monitoring for sidelink transmissions during the entire sensing window, then resource selection reliability is improved, but power consumption increases
Solution Approach 1:
The sensing window is divided into multiple portions, with each portion monitored using a different beam. Instead of continuously monitoring all beams throughout the entire sensing window, the UE performs partial sensing by monitoring only specific portions for each beam, thereby reducing power consumption while maintaining adequate resource selection reliability
Solution Approach 2:
The UE performs partial sensing by monitoring only a portion of the sensing window for each beam rather than the entire window. This partial action reduces the total sensing duration and power consumption while still providing sufficient information for resource selection
2Reliability
If multiple beams are used for sensing during different portions of the sensing window, then sensing coverage is improved, but device complexity increases
Solution Approach 1:
The sensing process is segmented into multiple portions, each associated with a specific beam. The UE monitors different portions of the sensing window using different beams, improving sensing coverage without requiring simultaneous multi-beam monitoring that would increase complexity
Solution Approach 2:
The UE performs sensing in periodic intervals across different portions of the sensing window using different beams. This periodic approach improves coverage while simplifying the mechanism compared to continuous multi-beam sensing
Data Source
AI summary
Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for beam formed partial sensing by a user equipment (UE). An example method generally includes performing partial sensing by monitoring for sidelink transmissions from one or more other UEs using one or more different beams during one or more different portions of a sensing window; and selecting resources, within a resource selection window, for future sidelink communications based on results of the partial sensing.