14th March 2019_CC 15th March 2019_MC

Unit 1 Objective

To review Meaning & Concept of GSM communication

Learning outcome

Students can describe the flow of information using the GSM architecture for communication.

Explain information processes in telecommunication

mobile

Subscriber A

GSM EXCHANGE

ARCHITECTURE (MS/BTS/BSC/MSC)

Subscriber B

1. MTN-MTN (on-net)

2. MTN-TIGO (off-net)

3. MTN-PSTN/LandLine (off-net)

4. MTN-International (off-net)

5. MTN-Roaming (off-net)

6. Porting of numbers

7. VOIP Call (internet-based)

8. SIMBox Call (Fraud/backdoor)

To BSC

BTS

Transmission Unit

Sector Antenna

• Home Location Register (HLR)

• Visitor Location Register (VLR)

• Equipment Identity Register (EIR)

• Authentication Center (AuC)

• SMS Serving Center (SMS SC)

Mobile Switching (Exchange) Center (MSC)

• Gateway MSC (GMSC)

Subscriber Identification Module (SIM)

BTS, BSC, MSC, Air Interface A-bis, A

ICH policy implementation in Ghana

(Explain the functions/operations of the following)

Interconnect Clearing House (14 Functions)

Read Further

Familiarize with GSM terminologies

Download notes from Sakai and other web sources. Ex. http://www.tutorialspoint.com/gsm/gsm_architecture.htm

Thanks

http://www.tutorialspoint.com/gsm/gsm_architecture.htm

Q1/11 Explain the call flow of mobile originated

call and terminated call flow in GSM (MTN-MTN

Q2/12 Explain handover/handoff concept & 2-Types.

Q3/13 Enumerate at least 6 core functions of the ICH implementation in Ghana for GMSC interconnectivities

Q4/14 Discuss the functions of the BTS

Q5/15 Discuss the functions of the HLR & VLR

Q6/16 Explain call setup from MTN to TIGO

Q7/17 Discuss the functions of EIR and AUC

Q8/18 Discuss the SimBox fraud and suggest ways

to reduce patronage

Q9/19 Explain the interfaces between MS-BTS-BSC-MSC. & List 4 types of frequency bands allowed for GSM operations

10/20: Summaries historical development of 1G, 2G, 3G,

4G/LTE, and 5G in the near Future