| 摘要 |
<p>A method for laying out SFN (Single Frequency Networks) based on OFDM technology solves the channel interference problem between sub-networks at the area crossover in SFN, the channel interference affects the network quality at the area crossover. The method comprises steps: laying out resource of the SFN uniformly; addressing the area of serving SFN uniformly so that the adjacent areas have different network address; synchronizing the air signal of SFN; classing the transmitter and cellular in the SFN; determining the optimal distance between transmitters in the SFN; processing the control channel of the SFN that correlates the area; processing the service channel of the SFN that correlates the area. The SFN needs logical layout the area service in different area crossover, and reduces the channel interference between different area systems and increases the service quality of the SFN.</p> |
