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Question:
(a) Show the main elements of the GSM system architecture and describe their functions.
(b) Looking at the HLR/VLR database approach used in GSM-how does this architecture limit the scalability in terms of users, especially moving users?
(c) Protocol stacks are divided into planes. What is the purpose of the division C/U/M planes.
(d) Why is there a difference in the performance of a UTRAN depending of a vendor?
(e) A system has an overall throughput of 2 Mbps. OVSF codes are used. Two subscribers are using the spreading factor SF=4.
(i) How many subscribers with SF=16 can transmit data simultaneously?
(ii) What is the transmission rate for the subscribers when a constant chip rate is assumed?
(f) Show the basic handover types in UMTS.
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state the advantages of the ICT
Can you describe the concept of NAT
Can you describe PPP protocol?
Options Negotiation To use any of the options first requires option negotiation between the client and server. Four control characters are used for this purpose.
Network Laye The network layer provides communication between the multiple networks. Whereas the data link layer provides the communication between two systems on the s
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