METHOD FOR ADDING ERROR PROTECTION BITS TO MATCH CODEWORD LENGTH

摘要

Teachings presented herein provide a method (100) and apparatus (10) for processing input information bits (16) for coding using a code (20), such that the length of the information word (14) formed from the input information bits (16) matches a fixed information word length defined by the code 20. In at least one embodiment, a coding circuit (10) receives input information bits (16) and adds error protection bits (26) as needed, to make the information word length match the fixed information word length. The method (100) and apparatus (10) contemplate generating the error protection bits (26) by sub-coding a subset (28) of the input information bits (26) (e.g., parity bit generation), thereby providing extra protection for that subset (28). These teachings allow the same code (20) to be used for coding feedback or other information, where the amount of information to be coded varies as a function of operating modes.