Wireless multi-hop trunk network combining method for supporting multimedia broadcasting service

Abstract

Comparing with the unicast, the invention reduces the selection of relay nodes in radio multi-hopping relay network so as to easily realize the network transmission. The method uses base stations and relay stations as basic networking units to commonly cover three-layer region of one cell; wherein, the relay station covers two-layer region to expand the coverage range of base station, and meanwhile reduces the interference from neighboring cells. For supporting said relay networking solution supporting multimedia broadcast service, the invention also provides a frame structure of hierarchical coverage transmission fitting the relay network; by TDMA approach, the terminal can self-adaptively receive the broadcast signals from base station and relay station; by increasing protection time-delay, the maximum diversity gain can be obtained.

Description

technical field

[0001] The invention is specially aimed at the multimedia broadcasting service and provides a relay-based networking solution. This solution can be applied to traditional cellular mobile communication systems and emerging wireless broadband access systems, such as wireless local area networks, wireless metropolitan area networks, etc., as well as wireless broadcast television systems, and heterogeneous wireless communication systems. Background technique

[0002] The traditional cellular mobile communication system adopts the cellular structure, but the fourth-generation (4G) wireless communication system with ultra-high data rate still adopts the traditional cellular structure, and there will be many problems. The main reasons are: first, the transmission rate of the 4G system is higher than that of Third generation (3G) systems are two levels higher. In the case of a given transmit power level, the symbol (bit) energy will decrease linearly with the increa...

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