The Realize Of CATV System For Major Games Based On IP And CMMB

CATV network project provides high quality TV for the large-scale sport events.Itprovides the game’s real-time vedio.The Asia Games first provide mobile game vedio byCMMB.Spectators can watch the game using cell phone any time any where.CMMB mobileTV broadcast of the Asia Games has become an important milestone on CMMB’sdevelopment.The project designed Asia Games network by CATV network and wireless network.Thenetwork provides multy-service management.It becomes the first CATV network system thatcould transmission video and data by cable and wireless in Asia Games history.Due to the dispersion of infomation source,signal processing complex,the whole networkdesign base on IP,using SDH,WDM and other transmission technology,solve the delayproblem.In wireless,CMMB using QPSK and16QAM modulate in a8MHz band,it improved theCMMB transmission capability.It looks like expande double bands,save the frequecyresource.It provides some valuable engineering experience.