Position location using terrestrial digital video broadcast television signals
First Claim
1. A method for determining the position of a user terminal, comprising:
- receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal;
determining a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals based on a known component in the DTV signals; and
determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters.
7 Assignments
0 Petitions
Accused Products
Abstract
A method and computer program product for determining the position of a user terminal includes receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal; determining a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals based on a known component in the DTV signals; and determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters.
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Citations
87 Claims
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1. A method for determining the position of a user terminal, comprising:
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receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal;
determining a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals based on a known component in the DTV signals; and
determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20)
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16. A method for determining the position of a user terminal, comprising:
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receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal;
determining a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals; and
transmitting the pseudo-ranges to a location server configured to determine a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters.
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21. A method for determining the position of a user terminal, comprising:
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receiving a plurality of pseudo-ranges from a user terminal, each pseudo-range determined between the user terminal and one of a plurality of DTV transmitters based on DTV signals broadcast by the DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal, and wherein the pseudo-ranges are determined based on a known component in the DVB-T signals; and
determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. An apparatus for determining the position of a user terminal, comprising:
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means for receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal;
means for determining a pseudo-range between the user terminal and each DTV transmitter based on a known component in the DTV broadcast signals; and
means for determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49)
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45. An apparatus for determining the position of a user terminal, comprising:
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means for receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal;
means for determining a pseudo-range between the user terminal and each DTV transmitter based on a known component in the DTV broadcast signals; and
means for transmitting the pseudo-ranges to a location server configured to determine a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters.
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50. An apparatus for determining the position of a user terminal, comprising:
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means for receiving a plurality of pseudo-ranges from a user terminal, each pseudo-range determined between the user terminal and one of a plurality of DTV transmitters based on DTV signals broadcast by the DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal, and wherein the pseudo-ranges are determined based on a known component in the DTV signals; and
means for determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73)
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59. A computer program product, tangibly stored on a computer-readable medium, for determining the position of a user terminal, comprising instructions operable to cause a programmable processor to:
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receive at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal;
determine a pseudo-range between the user terminal and each DTV transmitter based on a known component in the DTV broadcast signals; and
determine a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters.
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74. A computer program product, tangibly stored on a computer-readable medium, for determining the position of a user terminal, comprising instructions operable to cause a programmable processor to:
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receive at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal;
determine a pseudo-range between the user terminal and each DTV transmitter based on a known component in the DTV broadcast signals; and
transmit the pseudo-ranges to a location server configured to determine a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (75, 76, 77, 78, 80, 81, 82, 83, 84, 85, 86, 87)
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79. A computer program product, tangibly stored on a computer-readable medium, for determining the position of a user terminal, comprising instructions operable to cause a programmable processor to:
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receive a plurality of pseudo-ranges from a user terminal, each pseudo-range determined between the user terminal and one of a plurality of DTV transmitters based on DTV signals broadcast by the DTV transmitters, wherein each of the DTV signals is a European Telecommunications Standards Institute (ETSI) Digital Video Broadcasting-Terrestrial (DVB-T) signal, and wherein the pseudo-ranges are determined based on a known component in the DTV signals; and
determine a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters.
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Specification