1.4 Cellular Standards Flashcards
What were the 2 standards for 2G networks called?
- GSM - Global System for Mobile Communications
- CDMA - Code Division Multiple Access
What was the Mobile networking standard for worldwide coverage and 90% of the market for 2G networks?
GSM (Global System for Mobile Communications)
For 2G networks in the US, what Mobile networking standard did AT&T and T-Mobile use?
GSM
How did AT&T and T-Mobile use (a Mobile networking standard)?
You would move your SIM card from phone to phone
The original GSM standard used _____
multiplexing (everyone gets a little slice of time)
What does SIM stand for? (As in SIM card)
Subscriber Identity Module
What was originally an EU standard for 2G networks?
GSM
For 2G networks, how did CDMA work?
Everyone communicates at the same time, each call used a different code and the codes were used to filter each call on the receiving side
Which Mobile networking standard did Verizon and Sprint use?
CDMA (Code Division Multiple Access)
How did (Mobile networking standard) work with Verizon and Sprint?
They controlled the handsets - carrier locked (CDMA). Not much adoption elsewhere in the world.
When was 3G technology introduced?
1998
What was the speed upgrade 3G had over 2G?
Several Mbit/s
Which Mobile network introduced bandwidth improvement which allowed new functionality like GPS, mobile TV, Video on Demand, Video Conferencing?
3G networks
What does LTE stand for?
Long-Term Evolution - 4G networks
Which mobile technology combined GSM and CDMA providers?
4G/LTE
