Method and apparatus for locating position of a satellite signal receiver
First Claim
Patent Images
1. A method, comprising:
- determining a first group of pseudoranges from a satellite signal receiver to a plurality of satellites;
transmitting the first group of pseudoranges to a server to define a batch of pseudoranges;
obtaining at least one additional group of pseudoranges at the satellite signal receiver in response to an indication that said batch of pseudoranges requires additional pseudoranges;
transmitting the at least one additional group of pseudoranges to the server; and
adding the at least one additional group of pseudoranges to the batch at the server.
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Accused Products
Abstract
A method and apparatus for locating position of a satellite signal receiver is described in one example, groups of pseudoranges from the satellite signal receiver to a plurality of satellites are determined at a respective plurality of times. The group of pseudoranges are transmitted to a server, where a position of the satellite signal receiver may be determined using the groups of pseudoranges. In another example, a plurality of groups of pseudoranges are applied to a time-based filter located in the server. The position of the satellite signal receiver arrived from the time-based filter.
234 Citations
20 Claims
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1. A method, comprising:
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determining a first group of pseudoranges from a satellite signal receiver to a plurality of satellites;
transmitting the first group of pseudoranges to a server to define a batch of pseudoranges;
obtaining at least one additional group of pseudoranges at the satellite signal receiver in response to an indication that said batch of pseudoranges requires additional pseudoranges;
transmitting the at least one additional group of pseudoranges to the server; and
adding the at least one additional group of pseudoranges to the batch at the server. - View Dependent Claims (2, 9, 10)
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3. A method, comprising:
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determining groups of pseudoranges from a satellite signal receiver to a plurality of satellites over a period of time;
transmitting the groups of pseudoranges to a server;
applying the groups of pseudoranges to a time-based filter located in the server; and
deriving a single position of the satellite signal receiver directly from the groups of pseudoranges using the time-based filter without first calculating position fromeach group. - View Dependent Claims (4, 5, 6, 7, 8)
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11. A position location server, comprising:
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an interface for receiving groups of pseudoranges from a satellite signal receiver via a wireless communication network;
a processor for defining a batch of pseudoranges from a first group of pseudoranges received by the interface, for requesting at least one additional group of pseudoranges from the satellite signal receiver in response to an indication that said batch of pseudoranges requires additional pseudoranges, and for adding the at least one additional group of pseudoranges to the batch of pseudoranges. - View Dependent Claims (12)
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13. A system for locating position of a satellite signal receiver, comprising:
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a mobile device having a satellite signal receiver for determining groups of pseudoranges and a wireless transceiver for transmitting the groups of pseudoranges over a wireless communication network; and
a server in wireless communication with the mobile device for defining a batch of pseudoranges from a first group of pseudoranges received from the mobile device, for requesting at least one additional group of pseudoranges from the mobile device in response to an indication that said batch of pseudoranges requires additional pseudoranges, for adding the at least one additional group of pseudoranges to the batch of pseudoranges, and for computing a position of the mobile device using the batch of pseudoranges. - View Dependent Claims (14)
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15. A position location server, comprising:
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an interface for receiving groups of pseudoranges from a satellite signal receiver over a period of time via a wireless communication system;
a time-based filter for processing the groups of pseudoranges; and
a processor for deriving a single position of the satellite signal receiver directly from the groups of pseudoranges using the time-based filter without first calculating position from each group. - View Dependent Claims (16, 17)
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18. A system for locating position of a satellite signal receiver, comprising:
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a mobile device having a satellite signal receiver for determining groups of pseudoranges over a period of time and a wireless transceiver for transmitting the groups of pseudoranges over a wireless communication network; and
a server in wireless communication with the mobile device having a time-based filter for processing the groups of pseudoranges received from the mobile device and a processor for deriving position of the mobile device from the time-based filter. - View Dependent Claims (19, 20)
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Specification