Method and system for comparing measured radio frequency signal propagation characteristics in a wireless communication system
First Claim
1. A method for comparing measured radio frequency signal propagation characteristics in a wireless communication system, the method comprising the steps of:
- at a receiver, periodically measuring a plurality of radio frequency signal propagation characteristics associated with a signal transmitted from a transmitter in a coverage area of the wireless communication system;
processing the plurality of periodically measured radio frequency signal propagation characteristics to produce a time averaged radio frequency signature, wherein the processing extracts the dominant features of the radio frequency signal propagation characteristics;
comparing the time averaged radio frequency signature with a spatially averaged radio frequency signature; and
in response to the comparison, generating a figure of merit.
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Accused Products
Abstract
In a receiver in a wireless communication system, a plurality of radio frequency signal propagation characteristics associated with a signal transmitted from a transmitter in a coverage area are periodically measured. Next, the plurality of periodically measured radio frequency signal propagation characteristics are processed to produce a time averaged radio frequency signature, wherein the processing extracts the dominant features of the radio frequency signal propagation characteristics. Then the time averaged radio frequency signature is compared with a spatially averaged radio frequency signature, and a figure of merit is generated in response to the comparison. The processing may include decomposing a structured matrix containing vector representations of the plurality of periodically measured radio frequency signal propagation characteristics to extract a subspace that represents the dominant features of the radio frequency signal propagation characteristics of a signal transmitted from a transmitter in a coverage area of the wireless communication system.
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Citations
16 Claims
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1. A method for comparing measured radio frequency signal propagation characteristics in a wireless communication system, the method comprising the steps of:
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at a receiver, periodically measuring a plurality of radio frequency signal propagation characteristics associated with a signal transmitted from a transmitter in a coverage area of the wireless communication system;
processing the plurality of periodically measured radio frequency signal propagation characteristics to produce a time averaged radio frequency signature, wherein the processing extracts the dominant features of the radio frequency signal propagation characteristics;
comparing the time averaged radio frequency signature with a spatially averaged radio frequency signature; and
in response to the comparison, generating a figure of merit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for comparing measured radio frequency signal propagation characteristics in a wireless communication system comprising:
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means, at a receiver, for periodically measuring a plurality of radio frequency signal propagation characteristics associated with a signal transmitted from a transmitter in a coverage area of the wireless communication system;
means for processing the plurality of periodically measured radio frequency signal propagation characteristics to produce a time averaged radio frequency signature, wherein the processing extracts the dominant features of the radio frequency signal propagation characteristics;
means for comparing the time averaged radio frequency signature with a spatially averaged radio frequency signature; and
means for generating a figure of merit in response to the comparison. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification