1. (a) Which algorithm is used to digitize a voice signal for transmission in a digital circuit-switched network? (b) At which data rate is the voice signal transmitted?
2. Name the most important components of the GSM Architecture and describe their roles.
3. Name the most important components of the GSM radio network (BSS) and describe their tasks.
4. What are the two primary methods a BTS uses to communicate with several subscribers at the same time?
5. Which steps are necessary to digitize a speech signal in a mobile device before it can be sent over the GSM air interface?
6. (a) What is a handover; and, (b) which network component are involved?
7. (a) How is the current location of a subscriber determined for a mobile-terminated call? (b) How is the call forwarded through the network?
8. (a) How is a subscriber authenticated in the GSM network? (b)Why is an authentication necessary?
9. How is an SMS message exchanged between two subscribers?
10. (a) Which tasks are performed by the baseband processor in a mobile device? (b) Which tasks are performed by the application processor in a mobile device?
11. How are data stored on the SIM card?
12. (a) What is CAMEL? (b) For which service is CAMEL normally used?