Techniques for faster time-to-first-fix
First Claim
1. A method comprising:
- transmitting a first message to a mobile device, said first message comprising a selected heat map tile;
receiving a second message from said mobile device, said second message comprising a coarse location of said mobile device within said selected heat map tile; and
transmitting a third message to said mobile device, said third message comprising a detailed tiled radio heat map for a locally defined geographic area selected, at least in part, by using said coarse location and an indication of a direction from a center of said selected heat map tile towards a position fix of said mobile device as estimated via a vector computed, at least in part, by using an additional heat map tile centered at a terminal point of said vector.
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Accused Products
Abstract
Example methods, apparatuses, or articles of manufacture are disclosed herein that may be utilized, in whole or in part, to facilitate or support one or more operations or techniques for a relatively faster time-to-first-fix, such as for use in or with a mobile communication device. Briefly, in accordance with at least one implementation, a method may include transmitting a first message to a mobile device, the first message comprising abbreviated positioning assistance data; receiving a second message from the mobile device, the second message comprising an indication of a coarse location of the mobile device; and transmitting a third message to the mobile device, the third message comprising a detailed tiled radio heat map obtained based, at least in part, on the received indication of the coarse location of the mobile device.
11 Citations
44 Claims
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1. A method comprising:
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transmitting a first message to a mobile device, said first message comprising a selected heat map tile; receiving a second message from said mobile device, said second message comprising a coarse location of said mobile device within said selected heat map tile; and transmitting a third message to said mobile device, said third message comprising a detailed tiled radio heat map for a locally defined geographic area selected, at least in part, by using said coarse location and an indication of a direction from a center of said selected heat map tile towards a position fix of said mobile device as estimated via a vector computed, at least in part, by using an additional heat map tile centered at a terminal point of said vector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus comprising:
a mobile device comprising; a wireless transceiver to communicate with a wireless network; and one or more processors programmed with instructions to; obtain a first message received at said wireless transceiver, said first message comprising a selected heat map tile; initiate a transmission of a second message via said wireless transceiver, said second message comprising a coarse location of said mobile device within said selected heat map tile; and obtain a third message received at said wireless transceiver, said third message comprising a detailed tiled radio heat map for a locally defined geographic area selected, at least in part, by using said coarse location and an indication of a direction from a center of said selected heat map tile towards a position fix of said mobile device as estimated via a vector computed, at least in part, by using an additional heat map tile centered at a terminal point of said vector. - View Dependent Claims (21, 22, 23, 24, 25)
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26. An apparatus comprising:
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means for transmitting a first message to a mobile device, said first message comprising a selected heat map tile; means for receiving a second message from said mobile device, said second message comprising a coarse location of said mobile device within said selected heat map tile; and means for transmitting a third message to said mobile device, said third message comprising a detailed tiled radio heat map for a locally defined geographic area selected, at least in part, by using said coarse location and an indication of a direction from a center of said selected heat map tile towards a position fix of said mobile device as estimated via a vector computed, at least in part, by using an additional heat map tile centered at a terminal point of said vector. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. An article comprising:
a non-transitory storage medium having instructions stored thereon executable by a special purpose computing platform to; initiate a transmission of a first message to a mobile device, said first message comprising a selected heat map tile; obtain a second message received from said mobile device, said second message comprising a coarse location of said mobile device within said selected heat map tile; and initiate a transmission of a third message to said mobile device, said third message comprising a detailed tiled radio heat map for a locally defined geographic area selected, at least in part, by using said coarse location and an indication of a direction from a center of said selected heat map tile towards a position fix of said mobile device as estimated via a vector computed, at least in part, by using an additional heat map tile centered at a terminal point of said vector. - View Dependent Claims (42, 43, 44)
Specification