The generations 1G, 2G, 3G, 4G, LTE ,VOLTE and 5G:
we will discuss the same between 1G, 2G, 3G, 4G, LTE,VOLTE And 5G systems. Here "G" remains generation. The expansion in number demonstrates to us the development of system over the time. The system has developed from simple to computerized. Each time organize developed to meet the new prerequisites. Prior voice was just the need however now the information is need. How about we attempt to see every generation in detail here.
0G, also known as Mobile radio telephone.are the systems that preceded modern cellular mobile telephony technology.
The "G" in wireless networks refers to the "generation" of the underlying wireless network technology. Technically generations are defined as follows:
1G networks (NMT, C-Nets, AMPS, TACS) are considered to be the first analog cellular systems, which started early 1980s. There were radio telephone systems even before that. 1G networks were conceived and designed purely for voice calls with almost no consideration of data services (with the possible exception of built-in modems in some headsets).1G means First Generation of Wireless Technology. It used analog radio signals. Although the voice signal was converted to digital signal for communicating with the other telephone towers. But, actually 1G used to modulate the voice over higher frequencies. But, soon 2G overtook 1G.
These generation was introduced in the 1980.
2G means Second Generation of Wireless Technology. It is totally digital network. Voice is the priority in 2G network. Data was a after thought in 2G. 2G does have data support, but at very slow speed. 2G supports GPRS and Edge. It has extremely good voice calling quality as it was made for voice. 2G started supporting SMS, picture messages and MMS. All the data transferred over 2G is digitally encrypted. 2G is still widely used network in the world.
Second generation 2G cellular telecom networks were commercially launched on the GSM standard in Finland by Radiolinja (now part of Elisa Oyj) in 1991.
3G stands for Third Generation of Wireless Technology. 3G was developed to overcome the drawbacks of 2G. 3G has better data/internet speed. But, still voice is the priority on 3G network. The data speed on 3G differs widely. You can get download speed between 2 mbps to 21 mbps. Each network provider implemented their own infrastructure over the out of the box 3G network. 3G enabled video calling, mobile TV and fixed internet access. 3G offered data at high speed.
In the later versions of 3G which are often called as HSPA(High Speed Packet Access) or HSPA+, the data speed was higher and new features were also added. In HSPA you can simultaneously use voice and data.
It was introduced in 2000.
4G stands for Fourth Generation of Wireless Technology. It is purely Data Network. Means, data is the priority in 4G network. You get extremely high speed data speed on 4G. Due to increase in speed you can experience good quality of video calling and video streaming services. 4G supports end to end Internet Protocol Conection.4G refers to the fourth generation of mobile phone communication standards. LTE and WiMAX are marketed as parts of this generation, even though they fall short of the actual standard.
It was introduced in 2010.
LTE stands for Long Term Evolution. LTE is revision of 4G. LTE is developed over GSM/EDGE and UMTS/HSPA technologies. It is even called as 4G LTE. LTE is not all together the new technology but the enhancement of 4G. Here you can get very high data speed. The data is end to end digitally encrypted. LTE even supports VoIP i.e. Voice over Internet Protocol. Which means the voice is also digitally encrypted and transmitted over network. This has lot of benefits over all the previous technologies but the infrastructure cost is high.
VOLTE is voice over LTE (Voice Over Long Term Evolution). This supports VoIP. There is no need for separate infrastructure for voice transmission. The voice is converted from analog to digital and is transferred. The great example of VoIP or VOLTE is Whatsapp calling. VOLTE uses your data for voice calling. Reliance JIO is the example of VOLTE network. But all the devices does not support VOLTE, to use VOLTE you have to scrap your existing devices and buy new one.
5G demonstrates the accompanying noteworthy time of flexible media correspondences gages past the current 4G/IMT-Advanced standards.There are gossipy goodies around 5G being attempted regardless of the way that the particulars of 5G have not been formally cleared up. We can suspect that that new development will be taken off around 2020 yet in this fast paced world it will probably be much sooner than that. Seems like far away yet time flies consequently will 5G at speeds of 1-10Gbps. The future of mobile communications is likely to be very different to that which we are used to today. While demand for mobile broadband will continue to increase, largely driven by ultra high definition video and better screens, we are already seeing the growing impact of the human possibilities of technology as the things around us become ever more connected.
NGMN Alliance or Next Generation Mobile Networks Alliance define 5G network requirements as:
- Data rates of several tens of Mb/s should be supported for tens of thousands of users.
- 1 Gbit/s to be offered, simultaneously to tens of workers on the same office floor.
- Several hundreds of thousands of simultaneous connections to be supported for massive sensor deployments.
- Spectral efficiency should be significantly enhanced compared to 4G.
- Coverage should be improved.
- Signalling efficiency enhanced.
- Latency should be significantly reduced compared to LTE.