Patent ID: 7684476

Claim:
A wireless communication system that transmits a forward link feedback signal containing at least a backward link channel estimate value between a first wireless communication device and a second wireless communication device, the wireless communication system including the first wireless communication device that transmits the forward link feedback signal, comprising: a channel estimation unit that receives a signal containing a pilot signal, and determines a forward link channel estimate value of a wireless link; a multiplier that multiplies a first pilot signal by the forward link channel estimate value; and a multiplexer that multiplexes an output signal from the multiplier with a second pilot signal, to generate the forward link feedback signal; and the second wireless communication device that receives the forward link feedback signal, comprising: a separator that separates the signals that are multiplexed in the forward link feedback signal; and a channel estimation unit that determines the forward link channel estimate value of the wireless link, based on the first and second pilot signals, said channel estimation unit determining the backward link channel estimate value based on a first separated signal in the separated signals and the second pilot signal, and determining the forward link channel estimate value based on a second separated signal in the separated signals, the first pilot signal, and the determined backward link channel estimate value.