Hybrid Broadcast-Telecom Systems for Spectrum Efficient Mobile Broadband Internet Access
نویسندگان
چکیده
The introduction of hybrid systems, including broadcast as well as mobile telecom, for 4G is motivated. A current EU project, MCP, developing and specifying network and receiver architectures for hybrid networks is described. Reasons to use DVB-T for unicast services are explained. A way to increase spectrum efficiency by using broadcast functionality in connection with mobile Internet access is introduced. The idea of using large storage capacity for TV recording is introduced and consequences of time shifted viewing discussed. The possibility of further improving the spectrum efficiency of DVB-T by dynamic capacity allocation between TV and mobile Internet within a DVB-T signal is explained. INTERACTIVE SERVICES USING BROADCAST AND MOBILE TELECOM The ways in which interactive services can be achieved are fundamentally different in the broadcast world and in the mobile telecom world:
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