Impact of Signaling Load on the UMTS Call Blocking/Dropping

Published

May 11, 2008

Author(s)

Yi Qian, David Tipper, Saowaphak Sasanus

Abstract

Radio resources in the third generation (3G) wireless cellular networks (WCNs) such as the universal mobile telecommunications system (UMTS) network is limited in term of soft capacity. The quality of a signaling service transmission depends on various factors (i.e., a user s location, speed, and data rate requirement), and has impact on quality of user data communications where the opposite order is also true. In this paper, we provide the first step to evaluate the impact that various signaling service types have on call blocking and ongoing call drop in the UMTS systems. The radio resource s acquisition time for various signaling services is calculated according to the specifications in the UMTS standards. The maximum number of sessions that a signaling service type can be transmitted simultaneously is estimated along with the converting value when the other signaling service type is transmitted instead. Our analysis reduces the computational complexity in the call admission control (CAC) and allows the preservation on classes of services. An example of traffic scenario is given illustrating the benefit of our study.

Proceedings Title

Proceeding of IEEE VTC 2008 Spring

Conference Dates

May 12-14, 2008

Conference Location

Singapore, SN

Conference Title

IEEE VTC (Vehicular Technology Conference) 2008

Pub Type

Conferences

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Keywords

3G, CAC, call blocking, signaling, UMTS

Citation

Qian, Y. , Tipper, D. and Sasanus, S. (2008), Impact of Signaling Load on the UMTS Call Blocking/Dropping, Proceeding of IEEE VTC 2008 Spring, Singapore, SN, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=51350 (Accessed October 13, 2025)