Patent ID: 7961774

Claim:
A method for interference-resistance for multiple users using closed-loop transmit diversity (CLTD) at a receiver comprising: receiving a signal; computing a CLTD weighting vector from the received signal; providing the CLTD weighting vector to a transmitter; and using the CLTD weighting vector, a channel estimate, and spreading codes for each user to suppress interference by producing an estimate of the signal transmitted by the transmitter, wherein the estimate of the signal uses a zero forcing function expressed as: y ZF =( A H A ) −1 A H r,N C Q≧M, where r is the received signal, A is defined as H{tilde over (W)}[√{square root over (ρ 1 )}C 1 √{square root over (ρ 2 )}C 2 . . . √{square root over (ρ M )}C M ], H is the channel estimate, Nc is the spreading gain, Q is the number of received antennas, M is the number of multiple users, {tilde over (W)} is the weighting vector, √{square root over (ρ)} i is the i-th power source, and Ci is the i-th spreading code.