Sensing RF environment to determine geographic location of cellular base station
First Claim
1. A method of determining a geographic location of a small scale base station, the method comprising:
- querying, by small scale base station, a serving mobile location center (SMLC) to determine a reference macro-base transceiver station (macro-BTS) and a neighbor macro-BTS of the reference macro-BTS;
receiving a plurality of signals at the small scale base station including a first signal transmitted by the reference macro-BTS and a second signal transmitted by the neighbor macro-BTS;
determining, by the small scale base station, a set of measurement data that includes, for each of the plurality of signals received at the small scale base station, a corresponding measurement data; and
performing, by the small scale base station, location based calculations using the set of measurement data to determine the geographic location of the small scale base station.
11 Assignments
0 Petitions
Accused Products
Abstract
Determining a geographic location of a cellular base station is disclosed. In some embodiments, a set of measurement data that includes for each of a plurality of signals received at the base station a corresponding measurement data is determined. The set of measurement data is used to determine the geographic location of the base station. In some embodiments, a set of measurement data is received. The received measurement data includes for each of a plurality of location measurement units at which a signal transmitted by the base station is received a corresponding measurement data associated with the signal. The set of measurement data is used to determine the geographic location of the base station.
61 Citations
28 Claims
-
1. A method of determining a geographic location of a small scale base station, the method comprising:
-
querying, by small scale base station, a serving mobile location center (SMLC) to determine a reference macro-base transceiver station (macro-BTS) and a neighbor macro-BTS of the reference macro-BTS; receiving a plurality of signals at the small scale base station including a first signal transmitted by the reference macro-BTS and a second signal transmitted by the neighbor macro-BTS; determining, by the small scale base station, a set of measurement data that includes, for each of the plurality of signals received at the small scale base station, a corresponding measurement data; and performing, by the small scale base station, location based calculations using the set of measurement data to determine the geographic location of the small scale base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method of determining a geographic location of a small scale base station, the method comprising:
-
querying, by the small scale base station, a serving mobile location center (SMLC) to determine a reference macro-base transceiver station (macro-BTS) and a neighbor macro-BTS of the reference macro-BTS; receiving a plurality of signals at the small scale base station including a first signal transmitted by the reference macro-BTS and a second signal transmitted by the neighbor macro-BTS; determining, by the small scale base station, a time of arrival, and corresponding assistance data, for each of the plurality of signals received at the small scale base station; and performing, by the small scale base station, location based calculations using the time of arrival, and/or corresponding assistance data, for each of the plurality of signals received at the small scale base station to determine the geographic location of the small scale base station. - View Dependent Claims (16, 17, 18)
-
-
19. A system for determining a geographic location of a small scale base station, the system comprising:
-
a radio frequency receiver; and a processor configured to; query a serving mobile location center (SMLC) to determine a reference macro-base transceiver station (macro-BTS) and a neighbor macro-BTS of the reference macro-BTS; receive a plurality of signals including a first signal transmitted by the reference macro-BTS and a second signal transmitted by the neighbor macro-BTS; determine a time of arrival, and corresponding assistance data, for each of the plurality of received signals; and use the time of arrival, and corresponding assistance data, for each of the plurality of received signals to determine the geographic location of the small scale base station. - View Dependent Claims (20, 21, 22)
-
-
23. A system for determining a geographic location of a small scale base station, the system comprising:
-
a communication interface; and a processor configured to; query a serving mobile location center (SMLC) to determine a reference macro-base transceiver station (macro-BTS) and a neighbor macro-BTS of the reference macro-BTS; receive a plurality of signals including a first signal transmitted by the reference macro-BTS and a second signal transmitted by the neighbor BTS; receive via the communication interface a set of measurement data that includes, for each of the plurality of received signals, a corresponding measurement data; and use the set of measurement data by performing location based calculations to determine the geographic location of the small scale base station. - View Dependent Claims (24)
-
-
25. A non-transitory computer program product for determining a geographic location of a small scale base station, the non-transitory computer program product being embodied in a memory and comprising computer instructions for:
-
querying a serving mobile location center (SMLC) to determine a reference macro-base transceiver station (macro-BTS) and a neighbor macro-BTS of the reference macro-BTS; receiving a plurality of signals including a first signal transmitted by the reference macro-BTS and a second signal transmitted by the neighbor macro-BTS; receiving a set of measurement data that includes, each of the plurality of received signals, a corresponding measurement data; and performing location based calculations at the small scale base station using the set of measurement data to determine the geographic location of the small scale base station.
-
-
26. A method of determining a geographic location of a small scale base station, the method comprising:
-
determining, by a serving mobile location center (SMLC), a reference location measurement unit (LMU) and a neighbor LMU of the reference LMU; receiving, at the SMLC, a first set of measurement data from the reference LMU and second set of measurement data from the neighbor LMU, wherein the first set of measurement data corresponds to a plurality of uplink transmissions received at the reference LMU, from the small scale base station, and the second set of measurement data corresponds to a plurality of uplink transmissions received at the neighbor LMU, from the small scale base; determining, by the SMLC, a third set of measurement data corresponding to a difference between the first set of measurement data and the second set of measurement data; and performing location based calculations at the SMLC using the third set of measurement data to determine the geographic location of the small scale base station. - View Dependent Claims (27, 28)
-
Specification