seminar on industrial training final (1)

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    Seminar on Industrial Training

    inAdvanced GSM Technique

    atBharti Airtel Ltd.

    Presented By:SUMIT KAUSHIK

    EC-07-119

    E&C

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    Airtel was Established in 1985.

    BhartiAirtelLimited was formerly known

    as BhartiTele- VenturesLTD (BTVL).

    Bharti Airtel is the worlds 3rd largest - single

    country mobile operator.

    Fifth largest telecom operator in the world in

    terms of subscriber base.

    About Bharti Airtel LTD.

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    Bharti Airtel has more than 137 million subscriptions as

    of June 2010.

    Bharti has ventures with:

    Bharti Infratel Limited

    Bharti Realty Limited

    Bharti Walmart

    Bharti Retail

    Indus Towers

    About Bharti Airtel LTD.

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    WHAT IS GSM ?

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    HistoryofGSM

    In 1982,CEPT created the Group Special Mobile

    (GSM).

    In 1989, GSM responsibility was transferred to the

    European Telecommunications Standards Institute(ETSI)

    Full set of specifications phase-I became available in

    1990

    First GSM network was launched in 1991 by Radio

    linja in Finland

    http://en.wikipedia.org/wiki/GSM_Associationhttp://en.wikipedia.org/wiki/European_Telecommunications_Standards_Institutehttp://en.wikipedia.org/wiki/Radiolinjahttp://en.wikipedia.org/wiki/Radiolinjahttp://en.wikipedia.org/wiki/Finlandhttp://en.wikipedia.org/wiki/Finlandhttp://en.wikipedia.org/wiki/Radiolinjahttp://en.wikipedia.org/wiki/Radiolinjahttp://en.wikipedia.org/wiki/European_Telecommunications_Standards_Institutehttp://en.wikipedia.org/wiki/GSM_Association
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    GSM in India

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    GSM Services

    Tele-services

    Bearer or Data Services

    Supplementary services

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    TELE SERVICES

    Telecommunication services that enable voice

    communication via mobile phones

    Offered services

    - Mobile telephony

    - Emergency calling

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    BEARER SERVICES

    Include various data services for information

    transfer between GSM and other networks like

    PSTN, ISDN etc at rates from 300 to 9600 bps

    Short Message Service (SMS)

    up to 160 character alphanumeric data

    transmission to/from the mobile terminal

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    Call Waiting

    Call Hold

    Call Forwarding

    Barring of outgoing calls

    Barring of incoming calls

    Multi Party Call Conferencing

    CUG(Closed user group)

    SupplementaryServices

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    Gsm Architecture

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    Mobile Station (MS)

    The Mobile Station is made up of two entities:

    1. Mobile Equipment (ME)

    2. Subscriber Identity Module (SIM)

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    Base Station Subsystem(BSS)

    Base Station Subsystem is composed of two parts that

    communicate across the standardized Abis interfaceallowing operation between components made by

    different suppliers.

    1. Base Transceiver Station (BTS)

    2. Base Station Controller (BSC)

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    Base Transceiver Station (BTS)

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    Base Station Controller (BSC)

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    Mobile Switching Center (MSC)

    Home Location Register (HLR)

    Visitor Location Register (VLR)

    Authentication Center (AUC)

    Network Switching Subsystem(NSS)

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    Mobile Subscriber Identities in GSM

    International Mobile Equipment Identity(IMEI

    InternationalMobile Subscriber Identity(IMSI

    Temporary Mobile Subscriber Identity(TMSI)

    The Mobile Station Roaming Number(MSRN)

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    Authentication & Encryption

    Authentication

    Ciphering

    Ki(individual subscriber authentication key)

    RAND

    A3 Algorithm

    A5 Algorithm

    Kc

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    ControlChannel

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    Broadcast Channels (BCH)

    Broadcast Control Channel (BCCH) Frequency Correction Channel (FCCH)

    Synchronization Channel (SCH)

    Common Control Channels (CCCH)

    Paging Channel (PCH)

    Random Access Channel (RACH)

    Access Grant Channel (AGCH)

    Dedicated Control Channels (DCCH) Stand alone Dedicated Control Channel (SDCCH)

    Slow Associated Control Channel (SACCH)

    Fast Associated Control Channel (FACCH)

    Control Channels

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    Advantages of GSM over Analog system

    Reduced RF transmission power and longer battery life.

    International roaming capability.

    Better security against fraud (through terminal

    validation and user authentication).

    Encryption capability for information security and

    privacy.

    Compatibility with ISDN, leading to wider range of

    services

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    GSM Applications

    Mobile telephony

    Telemetry System

    - Automatic meter reading

    - Toll Collection

    - Remote control and fault reporting of DG sets

    Value Added Services

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    Q U E R I E S