| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for performing turbo encoding with a contention-free interleaver. SOLUTION: During operation an input block of size K' is received. The original input block and the interleaved input block are encoded to obtain a codeword block, wherein the original input block is interleaved using an interleaver of size K' and a permutationπ(i)=(f<SB>1</SB>×i+f<SB>2</SB>×i<SP>2</SP>) mod K', where O<=i<=K'-1 is the sequential index of the symbol positions after interleaving,π(i) is the symbol index before interleaving corresponding to position i, K' is the interleaver size in symbols, and f<SB>1</SB>and f<SB>2</SB>are the factors defining the interleaver. The values of K', 1, 2 are taken from at least one row of a table. The codeword block is transmitted through the channel. COPYRIGHT: (C)2008,JPO&INPIT
|
