Method and a system for detecting communication relaying network elements
AssigneeSpyder Navigations L.L.C.
InventorsMaurizio Spirito, Mikko Weckström, Ville Ruutu
Life of this patent
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Abstract
A method for determining if a signal received at a radio receiver in a communication system is transmitted to the receiver via a direct radio link comprising the steps of: determining a signal characteristic based on one or more signal measurements collected at the receiver; comparing the signal characteristic as determined with at least one predetermined system parameter; and responsive to said comparison determining if said signal is received via a direct link.
Claims20
A method for determining a location of a device communicating with a communication system, the method comprising:
- collecting a plurality of values of a first signal characteristic, the first signal characteristic associated with a propagation delay of a signal received at a first device from a base station;
- calculating a sample mean value based on the collected plurality of values;
- calculating an expected mean value of the first signal characteristic;
- calculating a test statistic based on the calculated sample mean value and the calculated expected mean value;
- applying the calculated test statistic to a hypothesis test decision rule;
- and
- determining whether or not the signal received at the first device is received directly from the base station or is received from a second device based on application of the calculated test statistic to enable an accurate determination of a beat on of the first device.
A method for determining a location of a device communicating with a communication system, the method comprising:
- collecting a plurality of values of a first signal characteristic, the first signal characteristic associated with a measured power of a signal received at a first device from a base station;
- calculating sample mean value based on the collected plurality of values;
- calculating an expected mean value of th first signal characteristic;
- calculating a test statistic based on the calculated sample mean value and the calculated expected mean value;
- applying the calculated test statistic to a hypothesis test decision rule;
- and
- determining whether or not the signal received at the first device is received directly from the base station or is received from a second device based on application of the calculated test statistic to enable an accurate determination of a location of the first device.
Dependencies are inferred from the claim text.