Patent ID: 7746758

Claim:
A method, comprising: receiving input data for M users and dividing said input data into a set of packets; concatenating said packets into a set of combined message words containing packets for each of said M users, where M is an integer of at least two; encoding said combined message words with an error-correcting code to form a multi-user codeword; modulating a set of frequency-domain symbols with said multi-user codeword, thereby forming a modulated set of frequency-domain symbols adapted to be transmitted by at least one transmit antenna; transforming a modulated set of frequency-domain symbols for each transmit antenna with an inverse fourier transform to form a set of time-domain symbols; appending a cyclic prefix to each member of said set of time-domain symbols for each transmit antenna; and transmitting said cyclic prefix and said time-domain symbols from said at least one transmit antenna in a multi-user transmitted signal.