Patent ID: 9712280
Date: 2017-07-18
CPC Classifications: H03M,H04L

Claim:
1. An output signal generating method comprising: selecting, by a processor, either one or two encoding processes from two different encoding processes, for transmit data configured by a plurality of bits, with respect to every predetermined number of pieces of the transmit data; generating either one or two encoded data sequences configured by a predetermined number of bits, using the selected either one or two encoding processes; generating one symbol sequence by one modulating process, selected from a plurality of modulating processes, on the either one or two encoded data sequences; and outputting one baseband signal sequence generated by using an OFDM scheme, for the one symbol sequence, wherein: the selected one modulating process generates the one symbol sequence configured by QPSK symbols generated by using a QPSK scheme or 16QAM symbols generated by using a 16QAM scheme; the one symbol sequence generated by using the QPSK scheme is configured with one encoded data sequence generated by the selected one encoding process; the one symbol sequence generated by using the 16QAM scheme is configured with the two encoded data sequences generated by the selected two encoding processes; a number of the 16QAM symbols is the same as a number of the QPSK symbols in the one symbol sequence; specific two bits extracted from a plurality of bits configuring the QPSK symbols and the 16QAM symbols in the one symbol sequence are bits belonging to the encoded data sequence generated by one of the two encoding processes; a number of the encoded data sequences is changed according to the selected one modulating process; and each of the encoded data sequences is configured with LDPC encoded data.