US Patent 7386058 Transceiver apparatus and transceiving method

In a transmitting method for transmitting a transmit signal sequence by a number of subcarriers, a plurality of subcarriers F1, F2, . . . FNSCH exclusively for a synchronization channel are provided, a signal sequence of synchronization channel SCH is transmitted by the plurality of exclusive subcarriers, and a common pilot CPICH or dedicated signal DPCH is transmitted on the other subcarriers. In this case, the signal sequence of the synchronization channel is subjected to differential encoding processing and the differentially encoded signal sequence is transmitted by the exclusive subcarriers.