G There are so many really confused, even the most techies.
Mobilized to trying to understand the differences between the different transmission technologies mobile data to try taking a machete that I intend to share with you. The idea: Know the differences and middle generations G.
Mobile data protocols
When one begins to read about the G's and data protocols realize that everything is more "dynamic" than it appears and the difference between generation and generation is not huge, however, often there are protocols and standards "bridge "from generation to generation and which are named with decimal numbers, as an evolution, as 2.5G or 3.9G.
Generations of wireless standard
2G
- Thousands of protocols implemented from 1990 to 2000
- Provides mobile technologies GSM, TDMA and CDMA
- Generation that gave life to SMS
- Enables data encryption
2.5G
- Intermediate step between 2G and 3G (obvious means)
- Provides data transmission of 56 kbit / sa 115 kbp / s
- Allows WAP browsing, MMS sending and IPv4 services (internet)
- Data transmission technology: GPRS
2.75G
- Name marketer (Almost 3G) and implemented in 2003
- Achieves data transfer rates up to 236.8 kbit / s
- Data transmission technology: EDGE
3G
- In a 3G network is able to talk and transmit data simultaneously
- Allows internet, mobile TV and video calls
- Achieves data transfer rates up to 2 mb / s
- Data transmission technology: W-CDMA
3.5G
- 3G is basically enhanced
- Achieves transmission speeds (theoretical) up to 14 mb / s
- Data transmission technology: HSDPA
- Almost all 3G networks are 3.5G networks
3.75G
- Powered 3.5G (also known as 3.9G)
- Data transmission technology: HSUPA
4G
- Standard not completely standardized (WTF)
- Wi-Max and LTE protocols that will come more
- IPv6 Support
- Requires speeds of 100 mb / s on the move of 1 GB / s at rest
- "Change of hand" (handoff) Soft between different antennas
- QoS Support
- Designed to transmit HD video and streaming
- Low latency, ideal for online gaming
As you see, not everything that glitters is gold and there is much marketing in selling computers that say something they are not. So the recommendation is "No view G's" but to see the protocols supported by each device.
Incidentally, this is one of those typical posts, practical work that I do research to learn if they see any errors or detail to improve please advise.
