GSM Test Questions with 100% Correct Answers 2024/2025
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Course
GSM
Institution
GSM
GSM Test Questions with 100% Correct Answers 2024/2025
Introduction - ANSWERS1.GSM stands for Global System for Mobile communication
2.It is an ETSI(European Telecommunication Standard Institute) for pan European communication system
3.The 2 goals achieved by GSM are
a).Better and mor...
GSM Test Questions with 100% Correct
Answers 2024/2025
Introduction - ANSWERS1.GSM stands for Global System for Mobile communication
2.It is an ETSI(European Telecommunication Standard Institute) for pan European communication system
3.The 2 goals achieved by GSM are
a).Better and more efficient technical solution for wireless communication
b).Single standard to be realized all over Europe enabling roaming across borders
4.GSM uses carrier frequency of 100Mhz
5.GSM is an open standard.Modulation of GSM is GMSK
6.FDD(Frequency Division Duplexing) is used
GSM network architecture - ANSWERS1.GSM consist of several base transceiver stations(BTS) which are
clustered together and interconnected to the base station cotroller(BSC)
2.Several BSC's are then connected to MSC
3.The MSC has access to several databases,including the Visiting Location Register(VLR),Home Location
Register(HLR) & Equipment Identity Register(EIR)
Main sections of GSM architecture - ANSWERS1.Radio subsystem
, 2.Networking and Switching Subsystem
3.Operational Subsystem
Radio subsystem - ANSWERS1.It consist of mobile station(MS) and Base Station Subsystem(BSS)
Mobile Station
2.MS consist of 2 major entities-mobile equipment(ME) and subscriber identity module(SIM)
3.SIM basically supports personal mobility
4.A user can use the SIM in any mobile device without informing the network operators
5.The International Subscriber Identity Module(IMSI) is the unique identity number residing in the SIM
6.A unique number called International Mobile Equipment Identity(IMEI) identifies the ME
BSS - ANSWERS1.The BSS consist of Base Transceiver Station(BTS),Base Station Controller(BSC) &
Transcoding and Rate Adaptation Unit(TRAU)
2.BTS is a radio transceiver system within the coverage area of the cell
3.It establishes and maintains connection within the MSs in the cell
4.transmission and reception of BTS with MS is done via omnidirectonal antennas
5.The interface between BTS and MS is called air interface,called Um interface
6.The major function of BTS is transmission of signals in the desired format
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