Internet hotspots localization using satellite systems
First Claim
1. A receiver unit adapted to perform geolocation comprising:
- an antenna adapted to receive a precision time signal from a satellite and receive additional aiding information from a wireless network station, wherein the precision time signal comprises a periodic repeating code, wherein the code alternates between a coarse timing code and a pseudorandom code;
a processor; and
a memory adapted to store a plurality of computer readable instructions which when executed by the processor are adapted to cause the receiver unit to;
use the precision time signal and the aiding information to determine a precise absolute time,determine positioning information associated with the receiver unit,use the positioning information to request location information of the wireless network station, anddetermine an absolute geolocation of the receiver unit using the positioning information and the location information.
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Accused Products
Abstract
Systems and methods according to various embodiments provide for navigation in attenuated environments by integrating satellite signals with Internet hotspot signals. In one embodiment, a receiver unit adapted to perform geolocation comprises an antenna adapted to receive a precision time signal from a satellite and receive additional aiding information from a wireless network station, wherein the precision time signal comprises a periodic repeating code. The receiver unit also comprises a processor and a memory adapted to store a plurality of computer readable instructions which when executed by the processor are adapted to cause the receiver unit to: use the precision time signal and the aiding information to determine a precise absolute time, determine positioning information associated with the receiver unit, use the positioning information to request location information of the wireless network station, and determine an absolute geolocation of the receiver unit using the positioning information and the location information.
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Citations
27 Claims
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1. A receiver unit adapted to perform geolocation comprising:
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an antenna adapted to receive a precision time signal from a satellite and receive additional aiding information from a wireless network station, wherein the precision time signal comprises a periodic repeating code, wherein the code alternates between a coarse timing code and a pseudorandom code; a processor; and a memory adapted to store a plurality of computer readable instructions which when executed by the processor are adapted to cause the receiver unit to; use the precision time signal and the aiding information to determine a precise absolute time, determine positioning information associated with the receiver unit, use the positioning information to request location information of the wireless network station, and determine an absolute geolocation of the receiver unit using the positioning information and the location information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for performing geolocation, the method comprising:
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receiving a precision timing signal from a satellite; receiving aiding information from at least one wireless network station; using the precision timing signal and the aiding information to determine a precise absolute time; aligning system correlators of a receiver unit using the precise absolute time to determine positioning information associated with the receiver unit; using the positioning information, requesting location information of the wireless network station; receiving the location information from the wireless network station; and using the positioning information and the location information to perform absolute geolocation. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for performing geolocation, the method comprising:
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receiving a precision timing signal from a satellite; receiving aiding information from at least one wireless network station; using the precision timing signal and the aiding information to determine a precise absolute time; aligning system correlators of a receiver unit using the precise absolute time to determine positioning information associated with the receiver unit; measuring ranging code for multiple satellites over time; combining the ranging code with the aiding information; computing positioning information; surveying location information of the wireless network station using the positioning information; receiving the location information that is transmitted on a wireless network station ranging code; and combining the positioning information and the wireless network station ranging code to perform absolute geolocation. - View Dependent Claims (18, 19, 20, 21)
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22. A receiver unit adapted to perform geolocation comprising;
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an antenna adapted to receive a precision time signal from a satellite and receive additional aiding information from at least one wireless network station, wherein the precision time signal comprises a periodic repeating code; a processor; and a memory adapted to store a plurality of computer readable instructions which when executed by the processor are adapted to cause the receiver unit to; receive the precision time signal from the satellite; receive the aiding information from the at least one wireless network station; use the precision time signal code and the aiding information to determine a precise absolute time; align system correlators of the receiver unit using the precise absolute time to determine positioning information associated with the receiver unit; measure ranging code for multiple satellites over time; combine the ranging code with the aiding information; compute positioning information; survey location information of the at least one wireless network station using the positioning information; receive the location information that is transmitted on a wireless network station ranging code; and combine the positioning information and the wireless network station ranging code to perform absolute geolocation. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification