Method for reducing registration traffic in a GSM system

• US 6,101,388 A
• Filed: 07/24/1997
• Issued: 08/08/2000
• Est. Priority Date: 07/24/1997
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Keshavachar, Bhaktha
• Primary Examiner(s): Voeltz, Emanuel Todd
• Assistant Examiner(s): SOFOCLEOUS, MICHAEL D
• Application Number:
  US08/899,830
• Time in Patent Office: 1,111 Days
• Field of Search: 455/435, 455/432, 455/433, 455/552, 455/458, 455/434
• US Class Current: 455/435.1
• CPC Class Codes: H04W 60/04 using triggered events
• CPC Class Codes: H04W 68/04 multi-step notification using statistical or historical mobility data
• CPC Class Codes: H04W 8/18 Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
• CPC Class Codes: H04W 8/205 Transfer to or from user equipment or user record carrier

Abstract

A method including the steps of receiving a location area change notification from a mobile, customizing a custom location area index table based on the location area change notification, and transferring the custom location area index table to the mobile if the mobile supports the custom location area index table.

Claims

1. A method comprising:

receiving a location area change notification from a mobile;

customizing a custom location area index table based on said location area change notification; and

,

transferring said custom location area index table to said mobile if said mobile supports said custom location area index table, where said location area change notification includes a cell change notification for a cell and said customizing includes;

(a) determining whether a first condition has occurred; and

(b) adding an entry for said cell in said custom location area index table if said first condition has occurred.

2. The method of claim 1, wherein said transferring comprises:

setting a download flag to a first value; and

,

downloading said custom location area index table to said mobile during a subsequent communication with said mobile.

3. The method of claim 2, wherein said downloading of said custom location area index table occurs at the end of said subsequent communication with said mobile.

4. The method of claim 1, wherein said first condition is that said mobile has reported a previous cell change notification for said cell within a predetermined number of previous cell change notifications.

5. The method of claim 1, further comprising removing an oldest entry from said custom location area index table if said custom location area index table has exceeded a predetermined size.

6. An apparatus comprising:

a processor; and

a memory coupled to said processor and configured to cause said processor to;

receive a location area change notification from a mobile;

customize a custom location area index table based on said location area change notification; and

,

transfer said custom location area index table to said mobile if said mobile supports said custom location area index table, where said location area change notification includes a cell chance notification for a cell and said memory is further configured to cause said processor to;

(a) determine whether a first condition has occurred; and

(b) add an entry for said cell in said custom location area index table if said first condition has occurred.

7. The apparatus of claim 6, wherein said transferring configuration of said memory causes said processor to:

set a download flag to a first value; and

,

download said custom location area index table to said mobile during a subsequent communication with said mobile.

8. The apparatus of claim 7, wherein said download of said custom location area index table occurs at the end of said subsequent communication with said mobile.

9. The apparatus of claim 6, wherein said first condition is that said mobile has reported a previous cell change notification for said cell within a predetermined number of previous cell change notifications.

10. The apparatus of claim 7, wherein said memory is further configured to allow said processor to remove an oldest entry from said custom location area index table if said custom location area index table has exceeded a predetermined size.

11. A method comprising:

reporting a location area change notification to a mobile switching center;

providing a mobile station class mark to said mobile switching center; and

receiving a custom location area index table from said mobile switching center during a subsequent communication with said mobile switching center;

where said location area chance notification includes a cell change notification for a cell and said custom location area index table has an added entry for said cell if a first condition has been determined to have occurred.