40300 «WCDMA/UMTS Overview»

Course Code




WCDMA/HSPA operators worldwide quit often face the challenge of optimizing their 3G network in a very complicated and multi Radio Technology environment. Interference and capacity problems quit often force the predicted planned radio performance to deviate from the expected ranges, degrading the offered QoS to the end user.

In this course the audience will follow a methodology to find out problematic areas by drive tests or statistics, troubleshoot the problems and propose specific realistic solutions.

Case studies, exercises and real network projects will be presented, using also drive test tools and results


Learning objectives

Describe the mobile networks evolution and layered architecture

  • Name the nodes and interfaces in WCDMA Network
  • Explain on overview level the functionality of each node and its architecture
  • Know the standardization bodies involved in 3rd generation partnership project (3GPP)
  • Know about IMT-2000 and the 3GPP releases
  • Know the concepts related to Frequency Spectrum allocated for UMTS implementation
  • Explain on an overview level the Mobile Core Network Solution
  • Explain the architecture and functions of the MSC-Server and M-MGW node
  • Describe the function of SGSN and GGSN in the core network
  • Describe the transport domain, and the various transport technologies used
  • Shortly describe the protocols used in Circuit Switch (CS) and in Packet Switch Domain (PS)
  • Describe the function of the main database nodes
  • Describe some basic traffic cases in the Mobile Softswitch Solution
  • Explain the various access technologies
  • Describe Directe Sequence CDMA principle
  • State the coding types used in WCDMA
  • Understand the Importance of power control
  • List the different handover scenarios in terms of soft, softer and hard handover
  • Acknowledge the architecture of the RAN Nodes RNC and BTS
  • Describe the basic principles of HSDPA and EUL
  • Describe the Network Services involved in WCDMA
  • Explain the difference between Applications and enablers
  • Explain Mobile Positioning, MMS and Messaging Over IP
  • Shortly describe the architecture and operation of the IP Multimedia Subsystem (IMS)


Target audience

Engineers, Technicians, Developers, Administrators  working with different subjects  (Service Planning, Design, Network Design, Network Deployment, Service Deployment, System, Service,  Field, Applications, Business…)



The participants should be familiar with general telecom technologies.

Knowledge of GSM technology is helpful


Duration and class size

The recommended length of the course is 3 days depending on the participants’ background. The maximum number of participants is 16.


Learning situation

This course is based on theoretical instructor-led lessons given in a classroom environment.