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An Efficient Paging Scheme for Terminal Mobility Using Personal Mobility Management Information in Interworked Fixed and Mobile Networks

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1 Author(s)
Yun Won Chung ; Sch. of Electron. Eng., Soongsil Univ., Seoul, South Korea

In interworked fixed and mobile networks, both terminal mobility (TM) and personal mobility (PM) should be supported and interworked to provide seamless universal mobility to mobile users. TM supports movement between different locations with the same mobile terminal (MT). In TM management, an MT updates its location when it changes location area (LA) and an incoming call is delivered to the MT by paging all cells within a registered LA. PM supports user mobility between different terminals by using personal identifier (PID). PM registration information of users is managed at registrar and an incoming call is delivered to the registered terminal based on registration information at registrar. Since location management in TM generates a lot of signaling messages over radio interface and consumes scarce radio resources, it is essential to reduce the number of location registration and paging signaling messages, i.e., signaling load. In this paper, we propose an efficient paging scheme for TM in interworked fixed and mobile networks, by using registration information for PM management. In the proposed paging scheme, paging is firstly performed only to the cells containing terminals with which a user is registered for PM, instead of all cells within a registered LA. If the called user is not found in the first paging step, remaining cells within the registered LA are paged. Performance comparison results show that the proposed scheme can achieve significant signaling load reduction at radio interface, and save scarce radio resources.

Published in:

New Technologies, Mobility and Security (NTMS), 2011 4th IFIP International Conference on

Date of Conference:

7-10 Feb. 2011

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