Cellular Standards

Question 1

What is 2g

Answer 1

2G Standards

• provided poor data support
• originally circuit-switched networks
• utilized multiplexing (multiple people can communicate at the same time, over the same frequencies)

Question 2

What is 3G

Answer 2

• upgraded data connectivity over 2G
• had incremental updates that improved speeds
• maximum speeds of about several megabits per second
• new functionalities such as GPS, mobile TV, and VoD

Question 3

What is 4G and LTE (Long term Evolution)?

Answer 3

• converged the GSM and CDMA standards
• supported download rates of 150 megabits per second
• LTE-A (the upgraded version of LTE) was available in some areas

Question 4

What is 5G?

Answer 4

• higher frequencies than the previous standards
• (eventually) 10 gigabits per second speeds
• (currently) 100 to 900 megabits per second speeds
• major IoT impact (less of a bandwidth constraint, larger data transfers, faster monitoring and notification, and additional cloud processing)

Question 5

What is GSM?

Answer 5

Global System For Mobile Communications
* originally an EU standard
* 90% of the market
* worldwide coverage
* used by AT&T and T-Mobile in the US
* used a SIM card

Question 6

What Is CDMA (Code Division Multiple Access)?

Answer 6

Code Division Multiple Access)
* each call uses a different code, used to filter on the receiving side
* used by Verizon and Sprint in the US
* handsets were controlled by the network provider
* not much worldwide utilization

Question 7

2G/3G mobile telecommunications standards?

Answer 7

GSM