METHOD AND SYSTEM FOR COMPARING MEASURED RADIO FREQUENCY SIGNAL PROPAGATION CHARACTERISTICS IN A WIRELESS COMMUNICATION SYSTEM

摘要

In a receiver in a wireless communication system, a plurality of radio frequency signal propagation characteristics associated with signals transmitted from a transmitter in a coverage area are periodically measured. Next, a process is performed in which a plurality of periodically measured radio frequency signal propagation characteristics extract the dominant characteristic of the radio frequency signal propagation characteristic to generate time-averaged radio frequency signature. The temporally averaged radio frequency signature is then compared to the spatially averaged radio frequency signature, and a sensitivity index is generated in response to this comparison. The processing of the plurality of periodically measured radio frequency signal propagation characteristics comprises decomposing the structured matrix containing a vector representation of the plurality of periodically measured radio frequency signal propagation characteristics to produce a signal transmitted from the transmitter in the coverage area of the wireless communication system And extracting a subspace indicating a leading characteristic of the radio frequency signal propagation characteristics of the radio frequency signal.