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Protocol Analysis in UMTS Networks

From Tektronix, Inc.

As of today, there are still very few UMTS networks offering commercial service. However, since third-generation (3G) handset functionality is improving and a wider range of handsets is becoming available, the number of 3G UMTS subscribers is increasing. By March 2003 there were more than 350,000 UMTS users and more than 6,000,000 cdma2000 users in Japan, and the rollout of UMTS throughout Europe is underway. Even some GSM operators in the US are already testing or are about to test UMTS. Therefore, there is an urgent need to provide hands-on practical examples of protocol testing in the first UMTS "islands" of this world. Call tracing and similar tasks haven't vanished with the advent of UMTS; in fact, tasks such as these have become even more complex. This is also valid for engineers with many years of protocol testing experience in GSM-networks. This document is intended to ease troubleshooting and protocol testing tasks in today and tomorrow's UMTS-networks.

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