Patent ID: 8391387

Claim:
A wireless device comprising: a case; and a wireless transmitter comprising: an interleaver circuit operable to process bits of an input symbol to form N orthogonal frequency division multiplex (OFDM) transmit streams comprising K subcarriers, wherein each input symbol comprises KN subsymbols, wherein each subsymbol comprises B bits of the input symbol, and wherein each subsymbol is communicated via an associated subcarrier of the N transmit streams, the circuit comprising: one or more interleavers operable to perform at least one permutation upon bits of the input symbol, a block mapper operable to group the bits into subsymbols, group the subsymbols into blocks of subsymbols, and spread the bits across the N transmit streams before the bits are spread across the K subcarriers, and the one or more interleavers operable to rotate the subsymbol blocks between the N transmit streams, wherein N is greater than 1.