Intelligent paging strategies for third generation mobile telecommunication systems

Abs&act- Location management procedures, in conjunction with the millions of users expected to subscribe to third gen-eration mobile telecommunication systems, will generate a huge signaling load. In this paper, we propose a method which aims at the reduction of signaling overhead on the radio link produced by the paging procedure. The key idea is the application of a multiple step paging strategy which operates as follows: At the instance of a call terminating to a mobile user who roams within a certain location area, paging is initially performed in a portion of the location area (the paging area) that the so-called “paging related information ” indicates. On no paging response, the mobile user is paged in the complementary portion of the location area-this phase can be completed in more than one (paging) step. Various “paging related information ” elements (e.g., recent interaction information, high mobility flag, etc.) can be used and several “intelligent ” paging strategies can be defined. Representative paging strategies are analyzed in terms of network performance and quality of service (paging signaling, paging delay, processing power requirements) via a simulation tool which models a realistic city area environment. I