Patent ID: 8290080

Claim:
A method for communicating in a wireless communication system, comprising: creating, using two distinct Alamouti codes, a power-scaled quasi-orthogonal space-time block code; and transmitting, using a transmitter, the power-scaled quasi-orthogonal space-time block code over multiple antennas, wherein the power-scaled quasi-orthogonal space-time block code is represented by a transmission codeword C N , using the two distinct Alamouti codes A and B as follows: C N = [ P 2 - Î» â¢ A + Î» â¢ B 0 0 Î» â¢ A - P 2 - Î» â¢ B ] , 0 â‰¤ Î» < P 2 where Î» is a power-scaling factor and P is a total transmitted power per symbol duration.