Patent ID: 6999726

Claim:
A radio system comprising a first and a second radio station, the first radio station comprising means for transmitting a first radio signal and the second radio station comprising means for receiving the first radio signal propagated via a direct path and via at least one reflected path, at least one of the first and second radio stations comprising means for transmitting respectively a first and second sounding radio signal, the at least one of the first and second radio stations further comprising means for receiving reflections of respectively the first and second sounding radio signal, means for deriving respectively first and second sounding data from the received reflections of the respective sounding radio signals, the first radio station further comprising means for transmitting any such first sounding data to the second radio station, and the second radio station further comprising means for using at least one of the first and second sounding data to generate a model of the received first radio signal wherein the model comprises at least one parameter, means for estimating the value of the or each parameter and means for exploiting at least one such estimated parameter value.