SYSTEM AND METHOD FOR RESTRICTING MOBILITY OF SUBSCRIBERS ASSIGNED TO FIXED SUBSCRIPTION AREAS IN A CELLULAR TELECOMMUNICATIONS NETWORK

摘要

A system and method of restricting an on-going call of a fixed subscriber to a fixed subscription area (FSA) in a cellular telecommunication system (10) having a plurality of cells (C1-C10) and a plurality of subscribers (M1-M10). The plurality of subscribers (M1-M10) includes at least one fixed subscriber assigned to the FSA and engaged in an on-going call in a serving cell. The system and method detect when the fixed subscriber is crossing a cell border between the serving cell and a neighbor cell, determine whether the neighbor cell is located outside the FSA, and drop the on-going call of the fixed subscriber upon determining that the neighbor cell is located outside the FSA.