Navigation system acquisition and use of cellular coverage map data
First Claim
1. A method comprising:
- detecting, at a mobile device, on a first date at a first time of day, a first wireless network signal strength that is current while the mobile device is at a first geographical location;
storing, in the mobile device, a first mapping between the first geographical location, the first wireless network signal strength, the first date, and the first time of day;
detecting, at the mobile device, on a second date at a second time of day, a second wireless network signal strength that is current while the mobile device is at a second geographical location;
storing, in the mobile device, a second mapping between the second geographical location, the second wireless network signal strength, the second date, and the second time of day;
determining, at the mobile device, for each particular area of a plurality of areas within a region, a quality of mobile communication that is possible within that particular area based at least in part on historical signal strength data that the mobile device alone has measured relative to signals that the mobile device has detected during previous trips that the mobile device has taken through that particular area;
based at least in part on the quality of mobile communication that is possible within each particular area of the plurality of areas, a selection device selecting a particular route from a plurality of routes each ending at a same destination; and
providing the particular route to a display device and presenting the particular route on the display device;
wherein the historical strength data includes the first wireless network signal strength and the second wireless network signal strength; and
wherein the plurality of areas includes the first geographical location and the second geographical location.
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Abstract
A mobile device can obtain wireless network signal strength map data that indicates, for various nearby geographical regions, the wireless network signal strength in each such region. A mobile device can transmit that data to a vehicular navigation system responsible for automatically selecting a high-quality route of vehicular travel between a specified source and destination. The system can take the wireless network signal map data into account when selecting that route. When selecting from among multiple different routes of vehicular travel between a specified source and destination, the system may employ an algorithm that considers wireless network signal strengths along those routes, in addition to the other factors. Consequently, the system can select a longer route having better signal strength over a shorter route having worse signal strength. The system can present the selected route within a set of suggested routes, potentially along with reasons for each route'"'"'s suggestion.
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Citations
40 Claims
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1. A method comprising:
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detecting, at a mobile device, on a first date at a first time of day, a first wireless network signal strength that is current while the mobile device is at a first geographical location; storing, in the mobile device, a first mapping between the first geographical location, the first wireless network signal strength, the first date, and the first time of day; detecting, at the mobile device, on a second date at a second time of day, a second wireless network signal strength that is current while the mobile device is at a second geographical location; storing, in the mobile device, a second mapping between the second geographical location, the second wireless network signal strength, the second date, and the second time of day; determining, at the mobile device, for each particular area of a plurality of areas within a region, a quality of mobile communication that is possible within that particular area based at least in part on historical signal strength data that the mobile device alone has measured relative to signals that the mobile device has detected during previous trips that the mobile device has taken through that particular area; based at least in part on the quality of mobile communication that is possible within each particular area of the plurality of areas, a selection device selecting a particular route from a plurality of routes each ending at a same destination; and providing the particular route to a display device and presenting the particular route on the display device; wherein the historical strength data includes the first wireless network signal strength and the second wireless network signal strength; and wherein the plurality of areas includes the first geographical location and the second geographical location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method comprising:
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determining, at a mobile device, for each particular area of a plurality of particular areas within a region, a quality of mobile communication that is possible within that particular area; determining, for each particular road segment of a plurality of road segments within the region, and based at least in part on the possible quality of mobile communication determined for an area in which the particular road segment at least partially occurs, a quality of mobile communication that is possible on that particular road segment; presenting, on a display, a map that; includes a gradient reflecting a weakening of a wireless network signal as a distance increases from a point of origin of the wireless network signal within a region of the map and indicates qualities of mobile communications that are possible on road segments within the plurality of road segments. - View Dependent Claims (18, 19, 20)
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21. A method comprising:
- storing, on a non-transitory computer-readable memory, instructions which, when executed by one or more processors, cause the one or more processors to perform;
detecting, at a mobile device, on a first date at a first time of day, a first wireless network signal strength that is current while the mobile device is at a first geographical location; storing, in the mobile device, a first mapping between the first geographical location, the first wireless network signal strength, the first date, and the first time of day; detecting, at the mobile device, on a second date at a second time of day, a second wireless network signal strength that is current while the mobile device is at a second geographical location; storing, in the mobile device, a second mapping between the second geographical location, the second wireless network signal strength, the second date, and the second time of day; determining, at the mobile device, for each particular area of a plurality of areas within a region, a quality of mobile communication that is possible within that particular area based at least in part on historical signal strength data that the mobile device alone has measured relative to signals that the mobile device has detected during previous trips that the mobile device has taken through that particular area; based at least in part on the quality of mobile communication that is possible within each particular area of the plurality of areas, a selection device selecting a particular route from a plurality of routes each ending at a same destination; and providing the particular route to a display device and presenting the particular route on the display device; wherein the historical strength data includes the first wireless network signal strength and the second wireless network signal strength; and wherein the plurality of areas includes the first geographical location and the second geographical location. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
- storing, on a non-transitory computer-readable memory, instructions which, when executed by one or more processors, cause the one or more processors to perform;
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37. A non-transitory computer-readable memory storing instructions which, when executed by one or more processors, cause the one or more processors to perform:
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determining, at a mobile device, for each particular area of a plurality of particular areas within a region, a quality of mobile communication that is possible within that particular area; determining, for each particular road segment of a plurality of road segments within the region, and based at least in part on the possible quality of mobile communication determined for an area in which the particular road segment at least partially occurs, a quality of mobile communication that is possible on that particular road segment; presenting, on a display, a map that; includes a gradient reflecting a weakening of a wireless network signal as a distance increases from a point of origin of the wireless network signal within a region of the map and indicates qualities of mobile communications that are possible on road segments within the plurality of road segments. - View Dependent Claims (38, 39, 40)
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Specification