D2D Resource Avoidance via Reception Power Thresholds

The patent applies preliminary action by having terminals exchange control information about future resources before actual D2D transmission occurs. This advance notification allows receiving terminals to identify and avoid resources that will be occupied, enabling both terminals to utilize resources efficiently without collisions. The control information exchange happens in advance, allowing proactive resource coordination rather than reactive collision avoidance.

The patent applies parameter changes by dynamically adjusting the reception power threshold based on priority information. When data has high priority, the threshold is set higher, allowing terminals to utilize more resources even with moderate reception power levels. For lower priority data, the threshold is lowered to avoid resources with higher reception power. This dynamic parameter adjustment enables flexible resource utilization while maintaining collision avoidance for critical transmissions.

The patent applies self-service by enabling terminals to autonomously determine their transmission resources based on received control information about future resources. Each terminal independently evaluates the control information, compares it with its own transmission needs, and selects appropriate resources without requiring complex centralized coordination. This self-service approach maintains relatively simple device complexity while effectively preventing resource collisions through distributed intelligence.