PSSCH Message Selection Using PSCCH Channel Quality Metrics
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and NR, face challenges in efficiently selecting and receiving physical sidelink shared channel (PSSCH) messages due to varying channel quality, leading to unnecessary resource consumption and heat generation when attempting to receive messages with low relevance or poor channel quality.
Innovation Solution
A method and apparatus for user equipment (UE) to determine channel quality metrics for PSCCH messages and select a subset of PSSCH messages to attempt to receive based on these metrics, prioritizing messages with better channel quality and terminating the reception process if the quality does not meet a threshold, thereby conserving resources and reducing heat generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE attempts to receive all PSSCH messages, then the message reception completeness is improved, but the computing resource consumption increases
Solution Approach 1:
The UE performs preliminary channel quality measurement on PSCCH messages before attempting to receive associated PSSCH messages. By evaluating channel quality metrics in advance, the UE can identify and filter out messages with poor channel quality that are unlikely to be successfully received, thereby avoiding waste of computing resources on futile reception attempts while maintaining high probability of receiving viable messages.
2Reliability
If the UE attempts to receive all PSSCH messages, then the message reception completeness is improved, but the heat generation increases
Solution Approach 1:
The UE performs preliminary channel quality assessment by measuring PSCCH messages before initiating PSSCH message reception. This preliminary action allows the UE to filter out messages with poor channel quality that would generate heat without successful reception, thereby reducing overall heat generation while maintaining effective message reception for messages with adequate channel quality.
3Use of energy by moving object
If the UE filters PSSCH messages based on channel quality, then the computing resource consumption is reduced, but the message reception completeness may deteriorate
Solution Approach 1:
The UE measures channel quality parameters (such as reference signal received power or signal-to-interference-plus-noise ratio) associated with PSCCH messages and uses these parameter values to determine whether to attempt reception of corresponding PSSCH messages. By changing the operational parameter from attempting all messages to selectively attempting messages based on measured channel quality thresholds, the UE reduces computing resource consumption while maintaining message reception completeness for viable messages.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a set of channel quality metrics associated with a set of physical sidelink control channel (PSCCH) messages; and determine, based at least in part on the set of channel quality metrics, a subset of physical sidelink shared channel (PSSCH) messages, of a set of PSSCH messages, to attempt to receive. Numerous other aspects are provided.