Sidelink DRX Resource Selection for V2X Power Optimization

The patent applies periodic action by implementing discontinuous reception (DRX) cycles where the terminal alternates between active monitoring periods and sleep periods. During DRX on-duration, the terminal monitors PSCCH resources; during off-duration, it enters sleep mode to save power. This periodic monitoring pattern maintains sensing reliability while significantly reducing power consumption compared to continuous monitoring.

The patent segments the sensing window into multiple DRX cycles, each containing on-duration and off-duration periods. By dividing the continuous monitoring task into discrete segments, the terminal can achieve adequate sensing coverage through selective monitoring of specific slots within each cycle, rather than continuously monitoring all slots, thus reducing overall power consumption while maintaining acceptable sensing accuracy.

The patent applies dynamics by making the DRX configuration adaptable rather than fixed. The network can dynamically adjust DRX parameters (cycle length, on-duration) based on traffic conditions and channel characteristics. Additionally, the terminal can dynamically select resources based on sensing results accumulated during on-duration periods, allowing the system to optimize between power saving and sensing accuracy according to actual conditions.

The patent utilizes parameter changes by allowing flexible configuration of DRX parameters including cycle length, on-duration, and offset. By adjusting these parameters, the system can optimize the balance between power consumption and sensing accuracy. The terminal also changes its behavior parameters by accumulating sensing information over multiple cycles and using it for resource selection, effectively compensating for reduced instantaneous monitoring with improved decision-making.