Patent ID: 7265714

Claim:
A multiple-input multiple-output (MIMO) communications system comprising: a transmitter for generating M source signals during a time interval, with the M source signals being generated for T time intervals, and a power level of at least one of the M source signals being different in each time interval; a transmit antenna array connected to said transmitter, and comprising M antenna elements for transmitting the M source signals; a receiver synchronized with said transmitter; a receive antenna array connected to said receiver, and comprising N antenna elements for receiving at least N different summations of the M source signals during each time interval, with the at least N different summations for each time interval being linearly independent for providing at least T*N different summations for the T time intervals; and a signal separation processor connected to said receiver and forming a mixing matrix comprising up to the at least T*N different summations of the M source signals, the mixing matrix having a rank equal to at least T*N, said signal separation processor for separating desired source signals from the mixing matrix.