Method and apparatus for pre-fetching location-based data while maintaining user privacy

• US 8,457,653 B2
• Filed: 02/25/2011
• Issued: 06/04/2013
• Est. Priority Date: 02/25/2011
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Ledlie, Jonathan
• Primary Examiner(s): Karikari, Kwasi
• Application Number:
  US13/035,307
• Publication Number:
  US 20120220308A1
• Time in Patent Office: 830 Days
• Field of Search: 455/414.2, 455/404.2, 455/411, 455/456.1, 455/456.3, 455/457
• US Class Current: 455/456.1
• CPC Class Codes: G01S 5/0236 Assistance data, e.g. base station almanac
• CPC Class Codes: H04W 4/021 Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals

Abstract

An approach is provided for pre-fetching location-based data while maintaining user privacy. A pre-fetching manager determines to segment a geographical area into a plurality of discrete areas. The pre-fetching manager determines to record location information associated with a device operating within the geographical area. The pre-fetching manager processes and/or facilitates a processing of the location information to calculate occurrence information of the device with respect to the discrete areas. The pre-fetching manager processes and/or facilitates a processing of the occurrence information to select location-based data to cache at the device. The pre-fetching manager further determines one or more other devices based, at least in part, on a collaborative filtering process, and retrieves other occurrence information associated with the one or more other devices, wherein the selection of the location-based data to cache is further based, at least in part, on the other occurrence information.

Claims

1. A method comprising processing or facilitating a processing of (1) data, (2) information, or (3) at least one signal, or any combination thereof, based, at least in part, on the following:

at least one determination to segment a geographical area into a plurality of discrete areas;

at least one determination to record location information associated with a device operating within the geographical area;

a processing of the location information to calculate occurrence information of the device with respect to the discrete areas;

a processing of the occurrence information to select location-based data to cache at the device; and

wherein the processing of the location information further includes adjusting the granularity of the location information based, at least in part, on the plurality of discrete areas, to protect privacy of a user of the device with respect to determining precisely when and where the user of the device is, and

wherein the granularity of the location information is adjustable from identification of a precise location within one of the plurality of discrete areas that the device is operating to identification of the geographical area that the device is operating within.

2. The method of claim 1, wherein the location information is recorded over a predetermined or variable period of time.

3. The method of claim 2, wherein the (1) data and/or (2) information and/or (3) at least one signal are further based, at least in part, on the following:

other occurrence information associated with another predetermined period of time,

wherein the selection of the location-based data to cache is further based, at least in part, on the other occurrence information.

4. The method of claim 1, wherein the (1) data and/or (2) information and/or (3) at least one signal are further based, at least in part, on the following:

other occurrence information associated with one or more other devices,

wherein the selection of the location-based data to cache is further based, at least in part, on the other occurrence information.

5. The method of claim 1, wherein the (1) data and/or (2) information and/or (3) at least one signal are further based, at least in part, on the following:

at least one determination of the one or more other devices based, at least in part, on a collaborative filtering process, other means of deriving location preferences based at least in part on user behavior, or a combination thereof.

6. The method of claim 1, wherein the (1) data and/or (2) information and/or (3) at least one signal are further based, at least in part, on the following:

a caching of the location-based data based, at least in part, on an age of previously cached location-based data or on demand.

7. The method of claim 1, wherein the (1) data and/or (2) information and/or (3) at least one signal are further based, at least in part, on the following:

a presentation of a mapping user interface associating the cached location-based data to areas of the mapping user interface corresponding to at least one of the discrete areas.

8. The method of claim 1, wherein the (1) data and/or (2) information and/or (3) at least one signal are further based, at least in part, on the following:

context information, profile information, use history, or a combination thereof associated with the device or a user of the device,

wherein the selection of the location-based data to cache is further based, at least in part, on the context information, profile information, use history, or a combination thereof.

9. The method of claim 1, wherein the (1) data and/or (2) information and/or (3) at least one signal are further based, at least in part, on the following:

a transfer of at least a portion of the location information, the occurrence information, or a combination thereof to another device associated with a user of the device; and

a processing of the transferred information to select location-based data to cache at the device.

10. An apparatus comprising:

at least one processor; and

at least one memory including computer program code for one or more programs,

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following,

determine to segment a geographical area into a plurality of discrete areas;

determine to record location information associated with a device operating within the geographical area;

process and/or facilitate a processing of the location information to calculate occurrence information of the device with respect to the discrete areas;

process and/or facilitate a processing of the occurrence information to select location-based data to cache at the device; and

wherein the processing of the location information further includes adjusting the granularity of the location information based, at least in part, on the plurality of discrete areas, to protect privacy of a user of the device with respect to determining precisely when and where the user of the device is, and

wherein the granularity of the location information is adjustable from identification of a precise location within one of the plurality of discrete areas that the device is operating to identification of the geographical area that the device is operating within.

11. The apparatus of claim 10, wherein the location information is recorded over a predetermined or variable period of time.

12. The apparatus of claim 11, wherein the apparatus is further caused to:

determine other occurrence information associated with another predetermined period of time,

wherein the selection of the location-based data to cache is further based, at least in part, on the other occurrence information.

13. The apparatus of claim 10, wherein the apparatus is further caused to:

determine other occurrence information associated with one or more other devices,

wherein the selection of the location-based data to cache is further based, at least in part, on the other occurrence information.

14. The apparatus of claim 10, wherein the apparatus is further caused to:

determine the one or more other devices based, at least in part, on a collaborative filtering process, other means of deriving location preferences based at least in part on user behavior, or a combination thereof.

15. The apparatus of claim 10, wherein the apparatus is further caused to:

cause, at least in part, initiating of caching of the location-based data based, at least in part, on an age of previously cached location-based data or on demand.

16. The apparatus of claim 10, wherein the apparatus is further caused to:

cause, at least in part, presentation of a mapping user interface associating the cached location-based data to areas of the mapping user interface corresponding to at least one of the discrete areas.

17. The apparatus of claim 10, wherein the apparatus is further caused to:

determine context information, profile information, use history, or a combination thereof associated with the device or a user of the device,

wherein the selection of the location-based data to cache is further based, at least in part, on the context information, profile information, use history, or a combination thereof.

18. The apparatus of claim 10, wherein the apparatus is further caused to:

cause, at least in part, a transfer of at least a portion of the location information, the occurrence information, or a combination thereof to another device associated with a user of the device; and

process and/or facilitate a processing of the transferred information to select location-based data to cache at the device.