Downloading map segment(s) to a cell phone based upon its GPS coordinates and mobility

• US 7,941,272 B2
• Filed: 10/26/2009
• Issued: 05/10/2011
• Est. Priority Date: 01/26/2005
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Bennett, James D., Karaoguz, Jeyhan
• Primary Examiner(s): Zanelli; Michael J.
• Application Number:
  US12/605,911
• Publication Number:
  US 20100106409A1
• Time in Patent Office: 561 Days
• Field of Search: None
• US Class Current: 701/213
• CPC Class Codes: G01C 21/34 Route searching; Route guidance

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.

Claims

1. A method for operating a premises wireless access point, the method comprising:

establishing wireless communications with a wireless terminal proximate to the premises wireless access point;

receiving premises map data from a premises map server, wherein the premises map data comprises;

a plurality of points of interest within the premises; and

Global Positioning System (GPS) coordinates respective to the plurality of points of interest; and

transmitting the premises map data to the wireless terminal.

2. The method of claim 1, further comprising:

receiving Global Positioning System (GPS) coordinates from the wireless terminal; and

transmitting the GPS coordinates to the premises map server.

3. The method of claim 2, wherein the map data is based upon the GPS coordinates received from the wireless terminal.

4. The method of claim 1, wherein establishing wireless communications with the wireless device comprises:

receiving an attachment request from the wireless terminal;

authenticating the wireless terminal; and

associating with the wireless terminal.

5. The method of claim 1, further comprising:

receiving a map segment download request from the wireless terminal, the map segment download request including GPS coordinates of the wireless terminal;

transmitting the map segment download request to the map server that includes the GPS coordinates of the wireless terminal;

receiving a map segment from the map server that corresponds to the GPS coordinates; and

transmitting the map segment to the wireless terminal.

6. The method of claim 1, further comprising:

receiving a map segment download request from the wireless terminal, the map segment download request including a maximum data size;

transmitting the map segment download request to the map server that includes the maximum data size;

receiving a map segment from the map server that corresponds to the maximum data size; and

transmitting the map segment to the wireless terminal.

7. A method for operating a premises map server, the method comprising:

establishing communications with a wireless terminal via a premises wireless access point; and

downloading premises map data to the wireless terminal via the premises wireless access point, wherein the premises map data comprises;

a plurality of points of interest within the premises; and

Global Positioning System (GPS) coordinates respective to the plurality of points of interest.

8. The method of claim 7, further comprising:

receiving Global Positioning System (GPS) coordinates from the wireless terminal; and

creating the map data based upon the GPS coordinates of the wireless terminal.

9. The method of claim 7, further comprising:

receiving a map segment download request from the wireless terminal via the premises wireless access point, the map segment download request including GPS coordinates of the wireless terminal;

creating a map segment that corresponds to the GPS coordinates; and

transmitting the map segment to the wireless terminal via the premises wireless access point.

10. The method of claim 7, further comprising:

receiving a map segment download request from the wireless terminal via the premises wireless access point, the map segment download request including a maximum data size;

creating a map segment that corresponds to the maximum data size; and

transmitting the map segment to the wireless terminal via the premises wireless access point.

11. A method for operating a map server to service a wireless terminal, the method comprising:

receiving a map segment download request from the wireless terminal via at least a supporting wireless network infrastructure, the map segment download request including location coordinates of the wireless terminal;

sending a maximum data size request to the wireless terminal;

receiving a maximum data size response from the wireless terminal;

creating navigation information that contains a map segment and that corresponds to the maximum data size response, the map segment having a level of resolution that is selected based upon the maximum data size; and

transmitting the navigation information to the wireless terminal via the at least one supporting wireless network infrastructure.

12. The method of claim 11, wherein the map segment has a level of resolution that is selected based upon the maximum data size response.

13. The method of claim 11, wherein creating the navigation information further comprises selecting a level of detail of the map segment based upon the maximum data size response.

14. The method of claim 11, wherein creating the navigation information further comprises selecting geographic boundaries of the map segment based upon the maximum data size response.

15. The method of claim 11, wherein creating the navigation information further comprises selecting textual navigation information to be sent in conjunction with the map segment based upon the maximum data size response.

16. The method of claim 11, wherein creating the navigation information further comprises selecting the map segment from a plurality of available map segments based upon the maximum data size response.

17. The method of claim 16, wherein selecting the map segment from the plurality of available map segments to meet the maximum data size comprises selecting a plurality of contiguous map sub-segments to make up the map segment.