DOWNLOADING MAP SEGMENT(S) TO A CELL PHONE BASED UPON ITS GPS COORDINATES AND MOBILITY
First Claim
1. A method for operating a wireless terminal to display a map segment on a display of the wireless terminal, the method comprising:
- accessing a Global Positioning System (GPS) receiver of the wireless terminal to determine location coordinates of the wireless terminal;
determining a maximum data size for a map segment download;
selecting a level of detail for the map segment download;
sending a map segment download request to a server via a supporting wireless network infrastructure, the map segment download request including the location coordinates, the maximum data size, and the selected level of detail;
receiving a map segment corresponding to the location coordinates of the wireless terminal the map segment having a data size no greater than the maximum data size and a level of detail corresponding to the selected level of detail; and
displaying the map segment and an icon that represents the wireless terminal on the display, the icon displayed on the map segment at a location corresponding to the location coordinates of the wireless terminal.
6 Assignments
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Accused Products
Abstract
A wireless terminal displays its location and navigation information (map segment) on its display. The wireless terminal accesses a Global Positioning System (GPS) receiver of the wireless terminal to determine its location coordinates. The wireless terminal determines a maximum data size for navigation information to be downloaded. The wireless terminal sends a navigation information download request to a map server via a supporting wireless network infrastructure that includes the location coordinates and the maximum data size. The wireless terminal receives navigation information that has a data size no greater than the maximum data size and displays the navigation information on the display. The wireless terminal may display a map segment and an icon representing the wireless terminal at a location corresponding to the location coordinates of the wireless terminal with respect to the map segment. The wireless terminal may download a premises map from a premises map server.
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Citations
26 Claims
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1. A method for operating a wireless terminal to display a map segment on a display of the wireless terminal, the method comprising:
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accessing a Global Positioning System (GPS) receiver of the wireless terminal to determine location coordinates of the wireless terminal;
determining a maximum data size for a map segment download;
selecting a level of detail for the map segment download;
sending a map segment download request to a server via a supporting wireless network infrastructure, the map segment download request including the location coordinates, the maximum data size, and the selected level of detail;
receiving a map segment corresponding to the location coordinates of the wireless terminal the map segment having a data size no greater than the maximum data size and a level of detail corresponding to the selected level of detail; and
displaying the map segment and an icon that represents the wireless terminal on the display, the icon displayed on the map segment at a location corresponding to the location coordinates of the wireless terminal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for operating a Global Positioning System (GPS) enabled wireless terminal, the method comprising:
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accessing a GPS receiver of the wireless terminal to determine location coordinates of the wireless terminal;
detecting entering of a premises based upon comparing the location coordinates to stored premises location coordinates;
establishing communications with a premises map server via a wireless link;
downloading a premises map from the premises map server, the premises map comprising;
a plurality of points of interest; and
GPS coordinates respective to the plurality of points of interest; and
displaying the premises map on the display. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for operating a wireless terminal to display a map segment on a display of the wireless terminal, the method comprising:
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accessing a Global Positioning System (GPS) receiver of the wireless terminal to determine location coordinates of the wireless terminal;
determining a map segment downloading latency;
determining a rate of motion of the wireless terminal;
based upon the rate of motion of the wireless terminal, estimating a duration of time when future location coordinates of the wireless terminal will depart from a current map segment;
when the map segment downloading latency compares unfavorably to the duration of time, sending a subsequent map segment download request to the map server via the supporting wireless network infrastructure that includes the location coordinates of the wireless terminal;
receiving a map segment in response to the map segment download request; and
displaying the map segment and an icon that represents the wireless terminal on the display, the icon displayed on the map segment at a location corresponding to the location coordinates of the wireless terminal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A wireless terminal comprising:
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a wireless interface;
a user interface including a display;
a Global Positioning System (GPS) receiver; and
a processing unit communicatively coupled to the wireless interface, the user interfaces and the GPS receiver and operable to;
access a Global Positioning System (GPS) receiver of the wireless terminal to determine location coordinates of the wireless terminal;
determine a maximum data size for a map segment download;
select a level of detail for the map segment download;
send a map segment download request to a server via a supporting wireless network infrastructure, the map segment download request including the location coordinates, the maximum data size, and the selected level of detail;
receive a map segment corresponding to the location coordinates of the wireless terminal, the map segment having a data size no greater than the maximum data size and a level of detail corresponding to the selected level of detail; and
display the map segment and an icon that represents the wireless terminal on the display, the icon displayed on the map segment at a location corresponding to the location coordinates of the wireless terminal.
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25. A wireless terminal comprising:
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a wireless interface;
a user interface including a display;
a Global Positioning System (GPS) receiver; and
a processing unit communicatively coupled to the wireless interface, the user interfaces and the GPS receiver and operable to;
access a GPS receiver of the wireless terminal to determine location coordinates of the wireless terminal;
detect entering of a premises based upon comparing the location coordinates to stored premises location coordinates;
establish communications with a premises map server via a wireless link;
download a premises map from the premises map server, the premises map comprising;
a plurality of points of interest; and
GPS coordinates respective to the plurality of points of interest; and
display the premises map on the display.
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26. A wireless terminal comprising:
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a wireless interface;
a user interface including a display;
a Global Positioning System (GPS) receiver; and
a processing unit communicatively coupled to the wireless interface, the user interfaces and the GPS receiver and operable to;
access a Global Positioning System (GPS) receiver of the wireless terminal to determine location coordinates of the wireless terminal;
determine a map segment downloading latency;
determine a rate of motion of the wireless terminal;
based upon the rate of motion of the wireless terminal, estimate a duration of time when future location coordinates of the wireless terminal will depart from a current map segment;
when the map segment downloading latency compares unfavorably to the duration of time, send a subsequent map segment download request to the map server via the supporting wireless network infrastructure that includes the location coordinates of the wireless terminal;
receive a map segment in response to the map segment download request; and
display the map segment and an icon that represents the wireless terminal on the display, the icon displayed on the map segment at a location corresponding to the location coordinates of the wireless terminal.
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Specification