Method for providing location aiding among peers operating in a direct communication mode
First Claim
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1. A method of providing satellite positioning assistance information from a first mobile communication device to at least a second mobile communication device, the first mobile communication device having current satellite positioning assistance information, the method comprising:
- establishing an information link directly between the first and second mobile communication devices;
requesting the current satellite positioning assistance information from the first mobile communication device at the second mobile communication device;
receiving the current satellite positioning assistance information from the first mobile communication device to the second mobile communication device over the information link; and
performing a satellite positioning location determination at satellite positioning receiver of the second mobile communication device using the current satellite positioning assistance information.
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Abstract
A mobile communication device (202) outside the service area of a communications network 210 in need of satellite positioning assistance information to perform a location determination (308). The mobile communication device receives the assistance information from a peer mobile communication device (204, 206) over a direct link.
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Citations
21 Claims
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1. A method of providing satellite positioning assistance information from a first mobile communication device to at least a second mobile communication device, the first mobile communication device having current satellite positioning assistance information, the method comprising:
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establishing an information link directly between the first and second mobile communication devices;
requesting the current satellite positioning assistance information from the first mobile communication device at the second mobile communication device;
receiving the current satellite positioning assistance information from the first mobile communication device to the second mobile communication device over the information link; and
performing a satellite positioning location determination at satellite positioning receiver of the second mobile communication device using the current satellite positioning assistance information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A mobile communication device, comprising:
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a communications transceiver;
a satellite positioning receiver;
a machine readable memory containing instruction code for operating the mobile communication device, including;
establishing an information link directly with a peer mobile communication device;
requesting current satellite positioning assistance information from the peer mobile communication device;
receiving the current satellite positioning assistance information from the peer mobile communication device over the information link; and
performing a satellite positioning location determination with the satellite positioning receiver using the current satellite positioning assistance information. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method of assisting a peer mobile communication device perform a satellite positioning location determination, comprising:
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acquiring a satellite positioning fix at a first mobile communication device, including acquiring satellite positioning parameters;
formatting the satellite positioning parameters into a current satellite positioning assistance information format;
receiving a request from a second mobile communication device for the current satellite positioning assistance information; and
transmitting the current satellite positioning assistance information to at least the second mobile communication device using a direct communication mode. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification