Satellite positioning system augmentation with wireless communication signals
First Claim
1. A method for processing position information, said method comprising:
- receiving in a SPS receiver SPS signals from at least one SPS satellite;
transmitting cell based communication signals between a communication system coupled to said SPS receiver and a first cell based transceiver which is remotely positioned relative to said SPS receiver wherein said cell based communication signals are wireless;
determining a first time measurement which represents a time of travel of a message in said cell based communication signals in a cell based communication system which comprises said first cell based transceiver and said communication system;
determining a second time measurement which represents a time of travel of said SPS signals;
determining a position of said SPS receiver from at least said first time measurement and said second time measurement, wherein said cell based communication signals are capable of communicating data messages in a two-way direction between said first cell based transceiver and said communication system.
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Abstract
A method and apparatus for processing position information from satellite positioning system satellites and from cellular based communication signals. In one example of a method according to the invention, a SPS receiver receives SPS signals from at least one SPS satellite. This SPS receiver is coupled to and typically integrated with a communication system which receives and transmits messages in a cell based communication system. In this method, a message is transmitted in the cell based communication signals between a communication system and a first cell based transceiver. A time measurement which represents a time of travel of a message in the cell based communication signals between the cell based transceiver and the communication system is determined. Another time measurement which represents a time of travel of the SPS signals is also determined. A position of the SPS receiver is determined from a combination of at least the time measurement which represents the time of travel of a message in the cell based communication signals and from a time measurement which represents a time of travel of the SPS signals. The cell based communication signals are capable of communicating data messages in a two-way direction in one embodiment between the cell based transceiver and the communication system.
767 Citations
38 Claims
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1. A method for processing position information, said method comprising:
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receiving in a SPS receiver SPS signals from at least one SPS satellite; transmitting cell based communication signals between a communication system coupled to said SPS receiver and a first cell based transceiver which is remotely positioned relative to said SPS receiver wherein said cell based communication signals are wireless; determining a first time measurement which represents a time of travel of a message in said cell based communication signals in a cell based communication system which comprises said first cell based transceiver and said communication system; determining a second time measurement which represents a time of travel of said SPS signals; determining a position of said SPS receiver from at least said first time measurement and said second time measurement, wherein said cell based communication signals are capable of communicating data messages in a two-way direction between said first cell based transceiver and said communication system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 29)
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12. A method for processing position information in a digital processing system, said method comprising:
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determining a first time measurement which represents a time of travel of a message in cell based communication signals in a cell based communication system which comprises a first cell based transceiver which communicates with said digital processing system and a communication system which communicates in a wireless manner with said first cell based transceiver; determining a position of a SPS receiver from at least said first time measurement and a second time measurement which represents a time of travel of SPS signals received at said SPS receiver which is integrated with said communication system and is remotely located relative to said first cell based transceiver and said digital processing system, wherein said cell based communication signals are capable of communicating messages from said communication system to said first cell based transceiver. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A system for processing position information, said system comprising:
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a SPS receiver which receives SPS signals from at least one SPS satellite and a communication system coupled to and integrated with said SPS receiver; a first cell based transceiver which is remotely positioned relative to said SPS receiver and communicates in a wireless manner with said communication system using cell based communication signals; a digital processing system coupled to said first cell based transceiver, said digital processing system determining a position of said SPS receiver from at least a first time measurement and a second time measurement, wherein said first time measurement represents a time of travel of a message in said cell based communication signals in a cell based communication system which comprises said first cell based transceiver and said communication system, and wherein said second time measurement represents a time of travel of said SPS signals, and wherein said cell based communication signals are capable of communicating data messages in a two-way direction between said first cell based transceiver and said communication system. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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30. A mobile integrated system comprising a satellite positioning system (SPS) receiver and a cell based communication system, said mobile integrated system comprising:
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a SPS receiver capable of receiving SPS signals and providing data for determining a first time measurement which represents a time of travel of SPS signals from a SPS satellite to said SPS receiver; a communication system capable of communicating in a wireless manner with a remotely located cell based transceiver and capable of providing data for determining a second time measurement which represents a time of travel of a message in cell based communication signals between said communication system and said remotely located cell based transceiver, wherein said cell based communication signals are capable of communicating messages between said communication system and said remotely located cell based transceiver, and wherein said SPS receiver is coupled to said communication system. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
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Specification