Generations of telecom
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Evolution of telecom industry from the era of 1G to 5g and IOT
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Generations of telecom
- 4. 1G • 1G stands for First Generation of Cellular Communication • Developed in 1980s & launched in 1990s • It totally works on Analog system. • AMPS was the system defined for 1G. • AMPS stands for Advance Mobile Ohone System. • It was first launched by US. • Allows user to make voice call only
- 5. 2G
- 6. 2G • 2G stands for Second Generation of Cellular Communication, it overcomes the limitation of 1G. • As it totally works on Digital system due to which there was less interference and noise as compared to 1G. • Roaming was Possible. • It works on both TDMA and FDMA techniques. • 2G system is named as GSM i.e. Global system for Mobile communication. • Services such as Calling and SMS are possible will less Noise.
- 7. 2.5G • 2.5G i.e. G or GPRS which stands for General Packet Radio Services. • This is the technology from where data or Internet pack was started. • 2.5G maximum speed is 141Kbps and it is theoretical maximum.
- 8. 2.75G • EDGE or E, it stands for Enhance data rate for GPRS Evolution. • As cleared from the name it is the enhancement in speed of GPRS, which increases the speed of GPRS from 141Kbps to 473Kbps. • Its speed is more because of the change in modulation technique.
- 11. 3G • Third Generation of Cellular communication was 1st launched by NTT Docomo, Japan in 1999 due to which it was also named as Release 99 or R’99. • It provides the speed maximum of 2 Mbps. • Multiple applications can be run at the same time like Video call, internet surfing, games, online banking etc… • Provides good voice quality. • Comes with a feature of providing video quality with less delay. • Roaming is possible. • It is also the digital technology that works on the technique named WCDMA (Wideband Code Division Multiple Access
- 12. HSPA (H) • HSPA stands for High Speed Packet Access also called as 3.5G. • Comes to provide enhancement in speed i.e. maximum up to 14.4Mbps for Downlink and 5.76 for Uplink.
- 17. 4G
- 18. If we assume a single FLASH is 3G network
- 19. Then, 10X is 4G network.
- 20. 4G • 4G stands for 4th Generation of Cellular communication. • It was developed in 2010. • Its system is named as LTE i.e. Long Term Evolution. • Faster and more Reliable • Capable of providing speed between 100 Mbps - 1Gbps • It is purely packet Switched network. • Low Cost, High QoS and High Security
- 23. 5G • Complete wireless communication with almost no drawbacks. • It is highly supportable to wwww (wireless world wide web). • More Speed (in Gbps), More Capacity • More clear Audio/Video. • Less Delay • It will be available in the market by 2020 at affordable cost with more reliability than previous phones. • More Secure and Safe for Public.