| 发明名称 | Error-correction coding method, error-correction decoding method, error-correction coding apparatus, and error-correction decoding apparatus | ||
| 摘要 | An error-correction coding method that includes outer coding of performing a coding process for an outer code; and inner coding of performing a coding process for an inner code that has an error correction capability adjusted based on an error correction capability of the outer code. | ||
| 申请公布号 | US8977927(B2) | 申请公布日期 | 2015.03.10 |
| 申请号 | US201012778618 | 申请日期 | 2010.05.12 |
| 申请人 | Mitsubishi Electric Corporation | 发明人 | Miyata Yoshikuni;Yoshida Hideo;Kubo Kazuo;Mizuochi Takashi |
| 分类号 | H03M13/00;H03M13/29 | 主分类号 | H03M13/00 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. An error-correction coding method for achieving a desired bit error ratio (BER) of BERod after error correction of data transmitted via a channel, which has a BER of BERib, the method comprising the steps of: performing a coding process for an outer code interleaved to a depth of No bits, wherein the outer code has an error correction capability of reducing BER by a difference between BERob and BERod, and wherein BERob represents a BER by which an error correction capability of the outer code is defined; and using an inner coding circuit to perform a coding process for an inner code that has an error correction capability dependent on a parameter of the inner code that is correlated to circuit size implementation of the coding process for the inner code, wherein the inner code has an error correction capability, which is correlated to the parameter of the inner code, of reducing BER by a difference between BERib and BERid, wherein BERid represents a BER by which an error correction capability of the inner code is defined, wherein the error correction capabilities of the inner and outer codes satisfy the following conditions: BERid is the highest possible value below BERob that can be obtained by adjusting a value of the parameter of the inner code; BERob<BERib; and(L/No)<floor((d−1)/2), where L is the number of residual bit errors which tend to occur per error based on the error correction capability of the inner code, d is a minimum distance representing the error correction capability of the outer code, No is the interleaving depth of the outer code in terms of bits, and floor(x) is a function for deriving a maximum integer not exceeding x, and wherein the circuit size of the inner coding circuit is incapable of supporting the next incremental value of the parameter of the inner code that correlates to a reduction of the BERid. | ||
| 地址 | Tokyo JP | ||