Core 1 - 1.4

Question 1

GSM - Global System for Mobile Communications

Answer 1

-Mobile network standard (worldwide)
-Used multiplexing (everyone got a piece of the network)
-SIM card (subscriber identity module) / Carried your phone number with it

Question 2

CDMA - Code Division Multiple Access

Answer 2

-Everyone communicates at the same time
-Each call uses a different code

Question 3

3G (3rd Generation)

Answer 3

-Upgraded from 2G
-Introduced GPS, Mobile streaming

Question 4

4G and LTE (Long Term Evolution)

Answer 4

-Converged standard of GSM and CDMA

• LTE-A: Standard supports download rate of 300 Mbit/s

Question 5

5G

Answer 5

-10 Gigabit per second
-Slower speeds from 100-900 Mbit/s
-Larger data transfer
-Additional cloud processing

Question 6

PRL Updates (Preferred Roaming List)

Answer 6

Allows phone to connect to the right tower