Patent ID: 7995514

Claim:
A Relay System (RS)-based cellular network transmission method for MT having a function of Single Input and Single Output (SISO) comprising steps of: transmitting broadcast information to all RSs and MTs by a Base Station (BS); transmitting required data to each RS in an Orthogonal Frequency Division Multiplexing (OFDM) mode by the BS; performing operations of selection of modulation scheme, addition of Cyclic Prefix (CP), addition of symbols for channel estimation and selection of OFDM symbols by the RS; feeding feedback information to the BS by the RS; transmitting a synchronization request to the BS by the RS; transmitting a synchronization acknowledgement to the RS by the BS; transmitting information to each MT belonging to the BS by the BS; transmitting information to each MT belonging to the RS by the RS; transmitting ACKnowledgement/Non-ACKnowledgement (ACK/NACK) information to the BS by the MT belonging to the BS; transmitting ACK/NACK information to the BS by the MT belonging to the RS; and informing the RS of the received ACK/NACK information by the BS.