GSM Overview - GSM Overview Reference Wireless Technology...

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Sept. 2004 GSM Overview 1 GSM Overview Reference: Wireless Technology, Michel Daoud Yacoub CRC Press, 2002 ISBN: 0-8493-0969-7
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Sept. 2004 GSM Overview 2 Outline of Topics 1. European Analog Cellular Systems 2. The GSM Bands 3. Services 4. GSM Architecture 5. Open Interfaces 6. Multiple Access 7. Signal Processing 8. Physical Channels 9 . Frame and Burst Structure 10.Logical Channels 11.GSM Messages 12.GSM Call Management 13.Frequency Hopping 14.Discontinuous Transmission 15.Power Control 16.Spectral Efficiency
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Sept. 2004 GSM Overview 3 1. European Analog Cellular Systems
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Sept. 2004 GSM Overview 4 2. The GSM Bands
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Sept. 2004 GSM Overview 5 3. Services Teleservices (TS) Telephony, emergency calls, voice messaging Bearer services (BS) SMS and cell broadcast, 9.6kbit/s Supplementary Services (SS)
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Sept. 2004 GSM Overview 6 Supplementary Service (SS) Advice of charge Barring outgoing call, International calls, roaming calls Call forwarding under various conditions Call hold Call waiting Call transfer to a third party Completion of calls to busy subscribers notify the caller when the callee is free Closed user group ---- only among themselves Caller ID and restrictions Free phone service (just like 800 numbers) Malicious call identification Three-party conference calls
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Sept. 2004 GSM Overview 7 4. GSM Architecture
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Sept. 2004 GSM Overview 8 The Four blocks Mobile Station Subsystem (MSS) Mobile Termination (MT) and SIM card (SIM) Base Station Subsystem (BSS) BSC and BTS Network and Switching Subsystem (NSS) MSC, HLR, VLR, EIR and AuC Operation and Support Subsystem (OSS) OMC and NMC
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Sept. 2004 GSM Overview 9 4.1 MSS --- (Mobile Termination MT) Mobile Termination (MT) includes Terminal Equipment (TE) palm, fax or mobile phone Terminal Adapter (TA) GSM s interface to TE TE identities and classmark (The followings need be specified for the GSM network) International Mobile Equipment ID (IMEI) --- IEEE 48 bit hardware address Revision level ---- GSM version implemented Encryption capability Frequency capability --- dual-band, tri-band Short message capability RF power capability
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Sept. 2004 GSM Overview 10 All MSS belong to class 1 commercial telecom equipment. (Class 2 are restricted equipments) (subclass 9) : Other radio equipment, which transmits only under the control of a network The power classes are specified below. Only I slot per frame is active. Vehicle mounted (class 2), portables (class 4) Equipment Class and Power Level Class
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Sept. 2004 GSM Overview 11 MSS -- Subscriber Identity Module (SIM) (1) Subscriber and equipment ID s are independent elements. A major reason for the success of GSM over that of DAMPS. International Mobile Subscriber ID(IMSI)
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This note was uploaded on 09/01/2010 for the course IT itphd taught by Professor Nitin during the Spring '10 term at Vlerick Leuven Gent Management School.

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GSM Overview - GSM Overview Reference Wireless Technology...

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