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Introduction to GSM, 2nd ed.

Introduction to GSM Book

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Mobile Switching Center (MSC)

A switching center coordinates all communication channels and processes. There are two types of switches used in the GSM system; a mobile switching center (MSC) and a packet switching system.

Mobile Switching Center - MSC - processes requests for service connections from mobile devices and land line callers, and routes calls between the base stations and the public switched telephone network (PSTN). The MSC receives the dialed digits, creates and interprets call processing tones, and routes the call paths.

Serving General Packet Radio Service Support Node - SGSN - is a packet switching node that coordinates the operation of packet data devices that are operating within its service coverage range. The SGSN operates in a process similar to that of a MSC and a VLR, except the SGSN performs packet switching instead of circuit switching. The SGSN registers and maintains a list of active packet data radios in its network and coordinates the packet transfer between the mobile radios.

 

Introduction to GSM Book

more details

Introduction to GSM, 2nd ed.

This book explains the basic components, technologies used, and operation of GSM systems. You will discover why mobile telephone service providers have upgraded from 1st generation analog systems to more efficient and feature rich 2nd generation GSM systems. You will also discover how 2nd generation systems are gradually evolving into 3rd generation broadband multimedia systems.

$19.99 Printed, $16.99 eBook