Patent ID: 7644345
Filing Date: 2010-01-05
Classification: H04L

Abstract:
1. A bit distributor for use in a transmitter for concurrent transmission of a plurality of streams through two or more spatial channels, comprising: a calculator to calculate a first delta for a first of the streams and a second delta for a second of the streams; and a bit extractor to extract a first set of bits for the first stream in a non-sequential manner from an input group of selected input bits, wherein the bit extractor determines which bits to extract from the input group for the first stream by multiplying a bit index of each bit of the first set by the first delta to determine a bit index of the bit to extract from the input group, wherein after extraction of the set of bits for the first stream, the bit extractor is configured to sequentially re-label remaining bits of the input group and to extract a second set of bits for the second stream in a non-sequential manner from the relabeled remaining bits, wherein the bit extractor determines which bits to extract from the relabeled remaining bits for the second stream by multiplying a bit index of each bit of the second set by the second delta to determine a bit index of the bit to extract from the relabeled remaining bits, wherein the first delta is calculated based on the sum of the bit-loading capabilities of the plurality of streams divided by the bit-loading capability of the first stream, and wherein the second delta is calculated based on the sum of the bit-loading capabilities of the second and any remaining streams of the plurality divided by the bit-loading capability of the second stream.