DVB-H Transmission Station Timing Synchronization

The patent applies preliminary action by calculating and setting transmission delays for low-height transmission stations in advance, before actual signal transmission begins. The network controller determines the delay values based on signal propagation times from elevated stations to various area elements, and configures each low-height station to transmit signals with the pre-calculated delay. This ensures that when signals are transmitted, they arrive at area elements synchronized with elevated station signals, preventing inter-symbol interference while maintaining expanded network coverage.

The patent introduces an intermediary - the network controller - that centralizes the complex delay calculation and coordination functions. Instead of requiring direct complex interactions between multiple transmission stations, the network controller acts as a mediator that receives information about signal propagation times, calculates appropriate delay values for each low-height station, and distributes these delay configurations to the respective stations. This intermediary approach manages the control complexity by consolidating it in a single entity while achieving the goal of signal synchronization and interference reduction across the network.