Patent ID: 8675743

Claim:
A method for controlling feedback of precoding information in a MIMO communication system comprising a transmitting device and a plurality of receiving devices, wherein the transmitting device communicates with each receiving device over a respective transmission channel, the method comprising: generating feedback control information at the transmitting device for each receiving device; broadcasting the feedback control information to the plurality of receiving devices; receiving one or more feedback at the transmitting device from one or more of the plurality of receiving devices, where each receiving device evaluates the feedback control information to determine a feedback constraint, where the feedback constraint is a threshold value used to determine when a receiving device of the plurality of receiving devices provides feedback to the transmitting device, wherein each receiving device evaluation includes tracking a scheduling history for each of the plurality of receiving devices; wherein the one or more feedback comprises precoding information; and wherein the feedback control information is configured to reduce the frequency of the one or more feedback to the transmitting device.