DATA TRANSMISSION APPARATUS

摘要

PROBLEM TO BE SOLVED: To enable hybrid transmission for data of a plurality of sequences by using one transmission system while providing different error immunities to the data sequences. SOLUTION: Parallel data in 2 bits generated by applying error correction coding to a real time packet TP1 are inserted to two bits at the MSB (Most Significant Bit) side of 6-bit input to a 64QAM modulator 706. Further, parallel data in 4 bits generated by applying error correction coding to a non real time packet TP2 are inserted to 4 bits at the LSB (Least Significant Bit) side of the 6-bit input to the 64QAM modulator 706. Then a 64QAM modulation signal generated by the 64QAM modulator 706 is wirelessly transmitted. COPYRIGHT: (C)2005,JPO&NCIPI