Advanced MIMO interleaving

摘要

A MIMO transmitter including an interleaving system for parsing encoded bits to a plurality of spatial streams and a plurality of interleavers to interleave bits for spatial streams such that at least a first spatial stream uses a first stream interleaver that interleaves with a pattern distinct from a second stream interleaver interleaving for a second spatial stream.

主权项

1. In a wireless transmitter, wherein an input bit sequence is encoded and transmitted over a wireless medium using a plurality of spatial streams each using a plurality of subcarriers, a method of interleaving comprising:
parsing the input bit sequence to the plurality of spatial streams; interleaving bits parsed to a first spatial stream using a first interleaving sequence to generate a first plurality of interleaved bits, wherein the first plurality of interleaved bits consist of even bits; and interleaving bits parsed to a second spatial stream using a second interleaving sequence distinct from the first interleaving sequence to generate a second plurality of interleaved bits, wherein the second plurality of interleaved bits consist of odd bits, and wherein each of the plurality of spatial streams corresponds to a signal transmitted over a distinct transmit antenna.