Download - GSM Structure

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  • Base Station Subsystem (BSS)

    Structure of a GSM network (key elements)

    Network SubSystem (NSS)

    GPRS Core NetworkMobile Station (MS)

    R

    Air

    (Um)

    A-bis

    A

    Gb

    H/E etc

    Gr/Gs

    Gn

    Gi

    PSTN

    SS7 network

    GPRS backbone

    IP netwok

    Internet

    1 2 3

    4 5 6

    7 8 9

    # 0 *

    BTS

    BTS

    BSC

    PCU

    MSC/VLR

    SGSN

    GGSN

    HLR/AUC

    (EIR)

    MT/TE

    TE

    SIM

    (UICC)

    08-04-2010 GSM structure

    upload.wikimedia.org/wikipedia//Gsm_structures.svg 1/1


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