Patent ID: 8677204

Claim:
A method of error control, comprising: forming a plurality of first data symbols from a plurality of data bits; transmitting a first signal including the plurality of first data symbols; receiving a request for retransmission; forming a plurality of second data symbols from the plurality of data bits; and transmitting a second signal including the plurality of second data symbols, wherein the plurality of second data symbols are formed from all of the same data bits of the plurality of data bits as the plurality of first data symbols, at least one of the first data symbols is formed from several of the plurality of data bits such that none of the second data symbols is formed from the same several of the plurality of data bits, a first half of a plurality of bits in each of the plurality of first data symbols and second data symbols are mapped to an in-phase carrier, and a second half of the plurality of bits in each of the plurality of first data symbols and second data symbols are mapped to a quadrature carrier.