Method and apparatus for locating position of a mobile device in an assisted satellite positioning system
First Claim
1. A method for locating position, comprising:
- obtaining satellite measurement data from a plurality of satellites at a mobile device;
obtaining assistance data at said mobile device from a server via a mobile-cellular device, wherein said assistance data passes from (i) said server to said mobile-cellular device via a cellular network; and
(ii) said mobile-cellular device to said mobile device via a wireless ad hoc network;
computing, responsive to said assistance data, position of said mobile device using said satellite measurement data; and
sending said position to said mobile cellular device via said wireless ad hoc network; and
wherein obtaining assistance data further comprises;
transmitting, from said mobile device to said mobile-cellular device via said wireless ad hoc network, a request for assistance data;
receiving assistance data at said mobile device from said mobile-cellular device via said wireless ad hoc network;
transmitting, from said mobile-cellular device to said server via—
said cellular network, said request for assistance data; and
receiving said assistance data at said mobile-cellular device from said server via said cellular network.
8 Assignments
0 Petitions
Accused Products
Abstract
Method and apparatus for locating position of a mobile device in an assisted satellite positioning system is described. In one example, satellite measurement data is obtained from a plurality of satellites at a mobile device. Position of the mobile device is computed using the satellite measurement data. The position is sent to a cellular device via a wireless ad hoc network. In one example, the wireless ad hoc network comprises a BLUETOOTH communication link. In one example, the mobile device is configured to receive assistance data from a position server through the wireless ad hoc network. For example, the mobile device may comprise a housing configured to plug into a cigarette lighter connector of an automobile and the cellular device may comprise a cellular telephone without location-determination capabilities (i.e., the cellular telephone does not include an integrated GPS receiver).
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Citations
22 Claims
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1. A method for locating position, comprising:
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obtaining satellite measurement data from a plurality of satellites at a mobile device; obtaining assistance data at said mobile device from a server via a mobile-cellular device, wherein said assistance data passes from (i) said server to said mobile-cellular device via a cellular network; and
(ii) said mobile-cellular device to said mobile device via a wireless ad hoc network;computing, responsive to said assistance data, position of said mobile device using said satellite measurement data; and sending said position to said mobile cellular device via said wireless ad hoc network; and wherein obtaining assistance data further comprises; transmitting, from said mobile device to said mobile-cellular device via said wireless ad hoc network, a request for assistance data; receiving assistance data at said mobile device from said mobile-cellular device via said wireless ad hoc network; transmitting, from said mobile-cellular device to said server via—
said cellular network, said request for assistance data; andreceiving said assistance data at said mobile-cellular device from said server via said cellular network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for locating position, comprising:
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obtaining assistance data at a mobile device from a server via a mobile-cellular device, wherein said assistance data passes from (i) said server to said mobile-cellular device via a cellular network and (ii) said mobile-cellular device to said mobile device via a wireless ad hoc network; obtaining, responsive to said assistance data, satellite measurement data from a plurality of satellites at said mobile device; sending said satellite measurement data from said mobile device to said mobile-cellular device via said wireless ad hoc network; sending said satellite measurement data from said mobile-cellular device to a position server via—
said cellular network; andcomputing position of said mobile device at said position server in response to said satellite measurement data; and wherein obtaining assistance data further comprises; transmitting, from said mobile device to said mobile-cellular device via said wireless ad hoc network, a request for assistance data; receiving assistance data at said mobile device from said mobile-cellular device via said wireless ad hoc network; transmitting, from said mobile-cellular device to said server via—
said cellular network, said request for assistance data; andreceiving said assistance data at said mobile-cellular device from said server via said cellular network. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A mobile position system, comprising a mobile global positioning system (GPS) device and a mobile-cellular device without location-enabling capabilities, wherein:
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said mobile GPS device comprises; a first wireless transceiver, said first wireless receiver being configured to obtain assistance data from said server via said mobile; cellular device; and a GPS receiver, said GPS receiver being configured to receive, responsive to said assistance data, satellite measurement data; and said mobile-cellular device comprises; a second wireless transceiver, said second wireless receiver configured to receive from said first wireless transceiver, via said wireless ad hoc network, location information output from said GPS receiver; and said assistance data passes from (i) said server to said mobile-cellular device via a cellular network and (ii) said mobile-cellular device to said mobile device via the wireless ad hoc network; and wherein obtaining assistance data further comprises; transmitting, from said mobile device to said mobile-cellular device via said wireless ad hoc network, a request for assistance data; receiving assistance data at said mobile device from said mobile-cellular device via said wireless ad hoc network; transmitting, from said mobile-cellular device to said server via—
said cellular network, said request for assistance data; andreceiving said assistance data at said mobile-cellular device from said server via said cellular network. - View Dependent Claims (19, 20, 21, 22)
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Specification