Wireless telecommunications location based services scheme selection

• US 20080167018A1
• Filed: 01/10/2007
• Published: 07/10/2008
• Est. Priority Date: 01/10/2007
• Status: Abandoned Application

• Current Assignee: TeleCommunication Systems Inc (Comtech Telecommunications Corporation)
• Original Assignee: TeleCommunication Systems Inc (Comtech Telecommunications Corporation)
• Inventors: Burton, Victor, Havlark, Arlene, Ahrens, John
• Application Number:
  US11/651,584
• Publication Number:
  US 20080167018A1
• Time in Patent Office: Days
• US Class Current: 455/414.2
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04M 2242/30 Determination of the location of a subscriber
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services

Abstract

An intelligent system for choosing selection schemes to be tried in a predetermined order for determining the location of a wireless mobile client, including retrieving a last known position record from a cache, checking serving network capability, choosing an initial selection scheme according to parameters including at least the required response time and the requested location method, including a method employing navigational satellites, attempting to retrieve a current position record, trying successive untried selection schemes in turn according to a predetermined algorithm if no current position record has been retrieved, and returning the current position record and updating the last known position record, or returning an error if no current position record has been retrieved, and returning the last known position record if an error has been returned, the last known position record exists in the cache and the last known position record has not expired.

Claims

1. A method of responding in a wireless network to a location request, comprising:

determining a sensitivity of delay to a response to said location request; and

based on said determined sensitivity, selecting between a cached last known position of a relevant subscriber, and newly determined position information.

2-24. -24. (canceled)