Patent ID: 8509160

Claim:
A method for processing signals in a communication system comprising a transmitting device and a plurality of receiving devices, the method comprising: receiving a first message from the transmitting device at a first receiving device, the first message instructing the first receiving device to begin feeding back channel feedback information; transmitting, to the transmitting device and in response to the first message, channel feedback information over an uplink channel such that the channel feedback information is transmitted only during a first feedback window and without requiring receipt of a separate message to stop transmission of the channel feedback information over the uplink channel, the channel feedback information being related to a state of one or more transmission channels; receiving a second message from the transmitting device at the first receiving device, where the second message instructs the first receiving device to continue feeding back the channel feedback information during an extended feedback window; computing the extended feedback window; and transmitting channel feedback information over the uplink channel to the transmitting device.