发明名称 | Transmission apparatus including encoder, reception apparatus including decoder, and associated methods | ||
摘要 | An encoder and decoder using LDPC-CC which avoid lowering the transmission efficiency of information while not deteriorating error correction performance, even at termination; and an encoding method of the same. A termination sequence length determining unit determines the sequence length of a termination sequence transmitted added to the end of an information sequence, according to the information length (information size) and encoding rate of the information sequence. A parity calculation unit carries out LDPC-CC coding on the information sequence and the known-information sequence necessary for generating a termination sequence of the determined termination sequence length, and calculates a parity sequence. | ||
申请公布号 | US9602142(B2) | 申请公布日期 | 2017.03.21 |
申请号 | US201514698758 | 申请日期 | 2015.04.28 |
申请人 | Panasonic Corporation | 发明人 | Murakami Yutaka;Koga Hisao;Kodama Nobutaka |
分类号 | H03M13/00;H03M13/37;H03M13/11;H04L1/00 | 主分类号 | H03M13/00 |
代理机构 | Seed IP Law Group LLP | 代理人 | Seed IP Law Group LLP |
主权项 | 1. A parity bits generation apparatus comprising: determination circuitry which, in operation, determines, based on a first sequence length of data bits and on a coding rate, a second sequence length of parity bits, and determines, based on the determined second sequence length of the parity bits, a third sequence length of predefined data bits from which a part of the parity bits are generated; encoder circuitry including one or more shift registers and control circuitry which, in operation, encodes a first combined sequence of the data bits and the predefined data bits to the parity bits, using a low density parity check convolutional code (LDPC-CC); addition circuitry which, in operation, adds information regarding the coding rate and information regarding the first sequence length of the data bits to a second combined sequence of the data bits and the parity bits; and modulation circuitry which, in operation, modulates the second combined sequence in which the information has been added, to transmit. | ||
地址 | Osaka JP |