Patent ID: 7251768
Filing Date: 2007-07-31
Classification: H03M,H04L

Abstract:
1. A wireless communication device comprising: an error-control coder that applies an error correction code to produce an encoded data stream of information bearing symbols; a bit interleaver to produce an interleaved data stream in which neighboring data bits of the encoded data stream are positioned to be mapped to different constellation symbols; a mapping unit to map the interleaved data stream to the constellation symbols, wherein the constellation symbols are selected from a constellation having a finite alphabet; a precoder that applies a liner transformation to the constellation symbols to produce precoded symbols, wherein the precoded symbols are complex numbers that are not restricted to the finite alphabet of the constellation; a symbol interleaver to process the precoded symbols to produce permuted blocks of the precoded symbols; and a modulator to produce an output waveform in accordance with the permuted blocks of precoded symbols for transmission through a wireless channel.