SYSTEM AND METHOD FOR POSITION CALCULATION OF A MOBILE DEVICE
First Claim
1. A method for determining a location of a device, the method comprising:
- (a) receiving at said device plural signals from a first plurality of satellites;
(b) determining a first estimated location of said device as a function of frequency information from said signals;
(c) determining a second plurality of satellites as a function of said first estimated location;
(d) transmitting assistance data to said device, said assistance data including information from said second plurality of satellites; and
(e) determining a second estimated location of said device from said information from said second plurality of satellites.
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Accused Products
Abstract
A system and method for determining a location of a device. Plural signals from a first plurality of satellites may be received a the device where an estimated location of the device is determined as a function of frequency information from the signals. A location of the device may then be determined as a function of the estimated location and/or as a function of phase information from the signals. A second plurality of satellites may also be determined as a function of any one of the determined locations. In such embodiments, assistance data may be transmitted to the device that includes information from the second plurality of satellites. Another location of the device may then be determined from this information.
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Citations
28 Claims
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1. A method for determining a location of a device, the method comprising:
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(a) receiving at said device plural signals from a first plurality of satellites; (b) determining a first estimated location of said device as a function of frequency information from said signals; (c) determining a second plurality of satellites as a function of said first estimated location; (d) transmitting assistance data to said device, said assistance data including information from said second plurality of satellites; and (e) determining a second estimated location of said device from said information from said second plurality of satellites. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for determining the location of a device from signals received from a plurality of Global Navigation Satellite System (“
- GNSS”
) satellites comprising;(a) a receiver for receiving plural signals from a first plurality of satellites; (b) circuitry for determining a first estimated location of said device as a function of frequency information from said signals; (c) circuitry for determining a second plurality of satellites as a function of said first estimated location; (d) a transmitter for transmitting assistance data to said device, said assistance data including information from said second plurality of satellites; and (e) circuitry for determining a second estimated location of said device from said information from said second plurality of satellites. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
- GNSS”
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20. A method for determining a location of a device, the method comprising:
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(a) receiving at said device plural signals from a first plurality of satellites; (b) determining a first estimated location of said device as a function of frequency information from said signals; (c) determining a second estimated location of said device as a function of said first estimated location and as a function of phase information from said signals; (d) determining a second plurality of satellites as a function of said first or second estimated location; (e) transmitting assistance data to said device, said assistance data including information from said second plurality of satellites; and (f) determining a third estimated location of said device from said information from said second plurality of satellites. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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Specification