LOW-DENSITY PARITY CHECK (LPDC) CODED MODULATION (LCM) WITH ALIGNMENT OF LDPC CODE WORDS AND DISCRETE MULTITON (DMT) SYMBOL LIMITS

摘要

A system for a digital subscriber line network (DSL) with a DSL interface can work with processing circuitry that can generate symbols in multi-carrier communications with code words to modulate a parity check. The code words can be aligned with the symbol boundaries of the symbols during continuous transmission of the multi-carrier communications. The processing circuitry reduces a number of parity bits by puncturing and a number of data bits to shorten the code words so that a code word boundary aligns with a symbol boundary for one or more symbols or a symbol transmission frame.