GSM Stands for Global system for Mobile. It is a
combination of TDMA(Time Division Multiple Access) & FDMA
(Frequency Division Multiple Access).
It is B1 Technology system for communication. It operates
in the frequency range of 800-900Mhz.
In simple words we can understand that this is the system
in which SIM(Subscriber Identity Module) is used.
1.What is the difference between Diplexer and Duplexer and
2. What is the different between CDU C and CDU A
3. How do you link a T1 from the 1st BTS to 2nd BTS
4. What is the value for TEI 1st T1?
5. What is the SSI?
Which is the digital modulation used today in telecomn?
(whatever his question meant the answer was CDMA)
2) Why is walse code used? then, noncoherent detection,
coherent detection, Pn code(y it is used?) etc