GSM Technology

"GSM Technology" is an intermediate technical course covering all aspects of GSM architecture and functionality. It presents the knowledge useful for those who in their everyday work operate, maintain and supervise the GSM network. The knowledge gained during this course can be furthermore extended during specific courses and consultations covering issues like operation, structure and configuration of specific network nodes as well as courses on signalling within Base Station System and Switching System.

Target audience

The course is intended for GSM technical staff and their management.

Training contents

  • Introduction
    (cellular concept, omni-directional and sector cells, frequency reuse and clusters, cell split),
  • Architecture
    (MSC, GMSC, HLR, VLR, AUC, EIR, BSC, BTS, SMS nodes, IWF for fax and data calls, MIN nodes, identity numbers),
  • Air interface
    (frequency bands, FDMA and radio channels, TDMA and physical channels, hopping physical channels, logical channels, channel mapping, burst structure),
  • Radio transmission
    (transmission problems: path loss, attenuation, shadowing, interferences, multipath fading; time alignment, solutions to transmission problems: dynamic power regulation, channel coding, interleaving, antenna diversity, frequency hopping, adaptive equalization, timing advance; speech coding, modulation),
  • Traffic cases
    (radio connection establishment, location updating, IMSI detach, mobile originating call, mobile terminating call, handover, SMS, international roaming, charging),
  • Security
    (AUC functions, authentication, ciphering, equipment check),
  • Base Transceiver Station
    (BTS functions, BTS classification, hardware build-up, antenna system, transmission network topology).


The participants should have general technical telecommunications/electronics/computer science knowledge on a degree level.

Training method

Lectures, presentation of services and theoretical exercises.


2 days