Telephony Fundamentals

Welcome to

GSM MOBILE COMMUNICATIONS NETWORK BASICS

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Philippine Representative

Objectives Understand Concept of Cellular Understand the functional blocks in a GSM Network Understand the Air Interface with Channels Understand Mobile Call Setup Operations

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Philippine Representative

Agenda Need for Cellular Introduction to Cellular Channelization Concept GSM Evolution and Markets GSM Network Arhcitecure GSM Air Interface Parameters GSM Speech Coding Physical and Logical Channels Frames and MultiFrames GSM Basic Operations

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Philippine Representative

Telephony Communication is today's basic need. The telephone has become part of our lives.

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Philippine Representative

Fixed Line Telephones

What are the drawbacks?

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Philippine Representative

Fixed Line Telephones Delay in New Connections

No Mobility

Prone to Failures ( Line Disconnection, etc ) Security Hazards Very less value added services

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Philippine Representative

Mobile Communications Drawbacks of Fixed Phones have triggered wireless communications “ Call people, not places”

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Philippine Representative