Question

“2G networks introduced data services for the mobile. Two popular standards of 2G systems are GSM and CDMA.”

1. Expand CDMA. 

2. Discuss the different technologies that are used to enhance data communication features of GSM.

Answer 1

1. Code Division Multiple Access. 

2. Different technologies:

a. GPRS (General Packet Radio Services):

It is a packet oriented mobile data service on the 2G on GSM. GPRS was originally standardized by European Telecommunications Standards Institute (ETSI) GPRS usage is typically charged based on volume of data transferred. Usage above the bundle cap is either charged per megabyte or disallowed.

b. EDGE(Enhanced Data rates for GSM Evolution): 

It is three times faster than GPRS. It is used for voice communication as well as an internet connection.