Method and apparatus for channel encoding and decoding in a communication system using low-density parity-check codes

摘要

Abstract A method for channel decoding using a Low-Density Parity-Check (LDPC) code, the method comprising: demodulating a signal transmitted from a transmitter; determining position information of punctured parity bits by estimating information about a predetermined 5 order of parity bit sets to be punctured and the number of parity bit sets; and decoding data using the positions of the punctured parity bits, wherein determining position information of punctured parity bits comprises: determining a number of parity bits to be punctured; determining a number of parity bit sets to be punctured based on the determined number of parity bits to be punctured; and acquiring a predetermined order of parity bit sets. 4246168 1 (GHMatters) P84756.AU.1 11/04/2013 [Figure 9] - - -innn nni.i o a a O 0 0 0 0 0 0 Oj-O -0 o a 0 0 0 O 0 0 0 0O O r- 0 0 O CD----D----D-C>--- -ri0lri -i0r 0 0 0 0j: c::) C.' 1 :O -: C-|C.:::..: C-:: C:)~~ ~ ~ +D ci.) C: ..I C) C:. ) oco-0 0 0 0 0 Or-' 0 0 0 0 0 0 0 0 0 0 00- ,-O O O 0 0 0 0 0 0 O r - 0 0 O Osr 0 0 * .- :. -n : Cr0 00O O ,- 0 0 0 0 0 0 0 Z3 O O C O - -- C O C O O 0 0 O O 0 0 0 0 0 0 0 0 OO 0 i. - . C)< > :) c : CI., I>nC> (Z)CD -- O s- ,- Oj O iOfO O &O O O1. O O O 0 -- 0 airO O O O 0 0 0 0 0 - -n O O O O O O O 0 >- OCD O O 0 0 0 0 0 0 0 OC> :C.-": C> (:" Z4 : > C) " * . *n --- i - -:" -.- ~C aZ: CD a> 0 0i) - O O - -- O O O -r -r--iO .. n O Oyns - .. ,.. ::::s:n:. :r - O ,- 4 ,MOO .nO O OniO 0- 0 O Or O O 0 0 0 0 0 0r 0 0 0|r -:. r .. ro-::oOO11:+: C > C) CD CO O O D I,- Oz i :- O: C,- O l.- M I.A:. i.. CD ~ ~ ~ ~ ii 44 1.. .(Z. .z: C: = ).C)O i.M. -N.. P.M.. i+ 1 :r: CD C- CDO O O: CD C O D C> k' - O r I .". -s M IN I a .i::"'4 " . "I || ".E. q~t c:>'. c::;:: c> j .) l- T; rri: