Cellular Standards

Question 1

What were the two original 2G standards?

Answer 1

GSM and CDMA

Question 2

What were the two global standards for 2G?

Answer 2

GSM and CDMA

Question 3

What does GSMA stand for?

Answer 3

Global System for Mobile Communications

Question 4

What does CDMA stand for?

Answer 4

Code Division Multiple Access

Question 5

What is multiplexing?

Answer 5

Multiplexing is a technique used to combine and send mulitple signals over a single medium.

Question 6

What is CDMA?

Answer 6

When multiple people could communicate over the network, but when sending the information it would use a particular code. Each call used a different code to communicate.

Question 7

What new features did 3G allow for?

Answer 7

GPS, mobile television(streaming), video on demand.

Question 8

What is LTE?

Answer 8

Long Term Evolution is a convergence of GSM and CDMA. Its based on GSM and EDGE (Enhanced Data Rates for GSM Evoltuion). LTE supports a download rate of 150 mbits/s

Question 9

What is PRL?

Answer 9

Preferred Roaming List is an update that allows your phone to understand where the best towers are. this can be connected over the air (OTA).