DVB-H Handover Signal Strength Thresholding

The receiver performs preliminary actions by measuring signal strength of candidate frequencies in advance and preparing a list of candidate frequencies from Network Information Table data before actual handover is needed. This allows the receiver to quickly switch frequencies without service interruption when handover becomes necessary, resolving the contradiction between maintaining service continuity and avoiding handover time loss.

The receiver applies partial action by monitoring only the necessary carrier frequencies for handover preparation rather than continuously monitoring all possible frequencies. The receiver measures signal strength of candidate frequencies only when needed and uses the pre-obtained Network Information Table data to guide frequency selection, enabling seamless handover while minimizing power consumption.

The receiver uses an intermediary approach by introducing a buffer mechanism that temporarily stores data packets during frequency switching. The buffer acts as a mediator between the old and new frequency streams, absorbing the time shift differences and different internet backbone delays. This allows the receiver to switch frequencies while maintaining data stream synchronization without complex real-time coordination.