Patent ID: 8130862

Claim:
A method, comprising: calculating a beam weight using sum rate optimization and channel state information of a broadcast channel to generate at least two receiver beam weights; determining a set of parameters including control parameters, a transmitter parameter, and a power scaling parameter; wherein the transmitter parameter is determined based on the at least two receiver beam weights and a channel estimate; wherein the power scaling parameter is determined based on the at least two receiver beam weights and the transmitter parameter; wherein the control parameters are determined based on the at least two receiver beam weights, the transmitter parameter, and the power scaling parameter; generating, based on the set of parameters, a first transmit signal for a first receiver; precoding the first transmit signal by subtracting interference associated with a second transmit signal for a second receiver, from the first transmit signal to cause the first transmit signal to be substantially interference-free; and transmitting the control parameters to the second receiver, wherein said transmitting the control parameters to the second receiver includes transmitting the control parameters to the second receiver to cause the second receiver to demodulate the second transmit signal using a slicer with parameters based on the control parameters to remove interference from the second transmit signal.