Mobile device locating using long term evolution signals
First Claim
1. A method, comprising:
- detecting, by a plurality of antennas within an indoor venue, a mobile communication data signal transmitted by a mobile device;
identifying a time slot and frequency sub-carrier associated with the detected mobile communication data signal;
measuring a signal parameter of the mobile communication data signal detected by each of the plurality of antennas in the time slot and frequency sub-carrier;
determining, using the signal parameter measured by each of the plurality of antennas, information identifying an approximate location of the mobile device inside the indoor venue;
determining, using the time slot and frequency sub-carrier, an identity associated with the mobile device; and
storing the information identifying the approximate location of to the mobile device and the time slot in a location log associated with the mobile device.
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Accused Products
Abstract
The described examples provide a system and methods for identifying a location of a mobile device within an indoor venue using cellular communication signals obtained while the mobile device is within the indoor venue. An array of antennas arranged within the indoor venue detects cellular communication signals transmitted by the mobile device. The detected cellular communication signals have detectable and measurable signal parameters that allow the location of the mobile device within the indoor venue and an identifier of the mobile device to be determined. The determined identifier of the mobile device may also be used to identify the mobile device subscriber. The mobile device indoor location information may be used to update an anonymized subscriber profile associated with the mobile device subscriber.
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Citations
20 Claims
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1. A method, comprising:
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detecting, by a plurality of antennas within an indoor venue, a mobile communication data signal transmitted by a mobile device; identifying a time slot and frequency sub-carrier associated with the detected mobile communication data signal; measuring a signal parameter of the mobile communication data signal detected by each of the plurality of antennas in the time slot and frequency sub-carrier; determining, using the signal parameter measured by each of the plurality of antennas, information identifying an approximate location of the mobile device inside the indoor venue; determining, using the time slot and frequency sub-carrier, an identity associated with the mobile device; and storing the information identifying the approximate location of to the mobile device and the time slot in a location log associated with the mobile device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system, comprising:
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a controller including a processor and cellular communication transceiver; a data storage device coupled to the controller, and a plurality of antennas located indoors at an indoor venue, wherein each of the plurality of antennas is communicatively coupled to the controller via the cellular communication transceiver, wherein the processor is configured to; receive, at a specific time slot and frequency sub-carrier in a cellular communication protocol, a cellular signal from a mobile device at the plurality of antennas within the indoor venue; determine, using the specific time slot and frequency sub-carrier, an identity associated with the mobile device; retrieve a subscriber profile associated with the mobile device; in response to retrieving the subscriber profile, identify, using an indoor venue-specific coordinate system, coordinates of the mobile device in the indoor venue using a cellular signal strength relative to each of the respective plurality of antennas that received the cellular signal; compare the identified mobile device coordinates to a layout map of the indoor venue, wherein the layout map includes a schematic layout diagram of elements within the indoor venue overlaying the indoor venue-specific coordinate system; and based on the comparison, determine a specific location within the indoor venue corresponding to the identified coordinates of the mobile device. - View Dependent Claims (17, 18, 19, 20)
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Specification