Sensing RF environment to detect change in geographic location of cellular base station
First Claim
Patent Images
1. A method, comprising:
- sensing, by a cellular base station, a radio frequency environment, including receiving a broadcast signal that includes a radio frequency (RF) signature characteristic of a geographic location from a macrocell base transceiver station;
determining, by the cellular base station, whether the sensed radio frequency environment is different than a stored signature in a way that indicates the geographic location of the cellular base station has changed; and
denying service by the cellular base station if the sensed radio frequency environment does not match the stored signature,wherein the cellular base station is configured to be communicatively coupled with a base station controller via an IP network and the base station controller is configured to be communicatively coupled to said macrocell base transceiver station.
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Abstract
Using radio frequency sensing to detecting that a cellular base station has been moved to a new geographic location is disclosed. A determination is made that a sensed radio frequency environment does not match a stored baseline. It is concluded, based at least in part on the determination that a sensed radio frequency environment does not match a stored baseline, that the cellular base station has been moved.
25 Citations
21 Claims
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1. A method, comprising:
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sensing, by a cellular base station, a radio frequency environment, including receiving a broadcast signal that includes a radio frequency (RF) signature characteristic of a geographic location from a macrocell base transceiver station; determining, by the cellular base station, whether the sensed radio frequency environment is different than a stored signature in a way that indicates the geographic location of the cellular base station has changed; and denying service by the cellular base station if the sensed radio frequency environment does not match the stored signature, wherein the cellular base station is configured to be communicatively coupled with a base station controller via an IP network and the base station controller is configured to be communicatively coupled to said macrocell base transceiver station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 16)
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11. A cellular base station, comprising:
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a storage configured to store a baseline; a transceiver configured to sense a radio frequency environment, including receiving a broadcast signal that includes a radio frequency (RF) signature characteristic of a geographic location from a macrocell base transceiver station; and a processor coupled to the storage and configured to; determine whether the sensed radio frequency environment is different than the stored baseline in a way that indicates the geographic location of the cellular base station has changed; and deny service by the cellular base station if the sensed radio frequency environment does not match the stored baseline, wherein the cellular base station is configured to be communicatively coupled with a base station controller via an IP network and the base station controller is configured to be communicatively coupled with said macrocell base transceiver station. - View Dependent Claims (12, 13, 14, 17, 19, 20, 21)
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15. A computer program product for detecting that a cellular base station has been moved to a new geographic location, the computer program product being embodied in a non-transitory computer readable medium and comprising computer instructions for:
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sensing, by the cellular base station, a radio frequency environment, including receiving a broadcast signal that includes a radio frequency (RF) signature characteristic of a geographic location from a macrocell base transceiver station; storing, by the cellular base station, a baseline based on the sensed radio frequency environment; subsequently sensing, by the cellular base station, the radio frequency environment; determining, by the cellular base station, whether the subsequently sensed radio frequency environment is different than the stored baseline in a way that indicates the geographic location of the cellular base station has changed; and denying service by the cellular base station if the subsequently sensed radio frequency environment does not match the stored baseline, wherein the cellular base station is configured to be communicatively coupled with a base station controller via an IP network, and the base station controller is configured to be communicatively coupled to the macrocell base transceiver station. - View Dependent Claims (18)
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Specification