Jila S Seraj

US Patent:

6535745, Mar 18, 2003

Filed:

Dec 15, 1999

Appl. No.:

09/464655

Inventors:

Jila Seraj - Dallas TX

Assignee:

Ericsson Inc. - Plano TX

International Classification:

H04Q 720

US Classification:

455458, 455436, 455435

Abstract:

A method of defining a location area within the service area of a wireless network utilizes paging traffic and handoff traffic statistics. Initially, a cell having the highest volume of paging traffic is identified and marked as belonging to a working location area. The cell having the highest volume of handoff traffic with the cell in the working location area is selected and a determination is made to determine if the combined paging traffic of the first and second cells exceeds the maximum paging capacity for a location area within the service area. If the maximum paging capacity has not been exceeded, then the second cell is added to the working location area. The process continues until all cells, except for the occasional dead cell, have been allocated to a location area.

US Patent:

53880951, Feb 7, 1995

Filed:

Aug 6, 1993

Appl. No.:

8/103889

Inventors:

Jila Seraj - Plano TX

Assignee:

Telefonaktiebolaget L M Ericsson - Stockholm

International Classification:

H04J 312

US Classification:

370 581

Abstract:

Individual subscriber appearances having a common directory number are identified with the existing software modules of a stored program controlled telecommunication switching system by redefining the format of the subscriber pointer data word used therein. An addition field comprising a call appearance member number is added to the subscriber pointer data to produce a subscriber call identifier data word.