In your  smartphone, the strength of mobile Internet signal is shown using alphabet letters like G, E, 2G, 3G, H and 4G near the signal bar. These symbols are visible right next to the signal strength indicator.  you Know the meaning of letters G, E, 2G, 3G, H ,H+ and 4G in context of the mobile Internet ?
 Now mobile phones have become smart and millions of people are using Internet through their smartphones.

Second Generation Technology :

GPRS (G) : Letter G stands for GPRS (General Packet Radio Service). It indicates the slowest speed of Internet data transfer in your mobile phone. When you see G near your signal strength indicator, it is certain that your net connection is working at the slowest speed.GPRS is considered to be the second generation (2G) mobile technology. It is the slowest and oldest mobile technologie. It is mainly good enough for sending text messages using apps like WhatsApp. Data rates in GPRS are between 56 and 114 kbit/second.

EDGE (E) : EDGE is faster than GPRS but still not good enough to browse the Internet. It takes lot of time in loading websites when your signal bar is showing E letter alongside. Typically EDGE provides a data rate of 400 kbit/second but in ideal conditions data rate of up to 1 Mbit/second can also be achieved.This technology also lies somewhere in between 2G and 3G. Those who call GPRS as 2.5G, they refer EDGE as 2.75G.

3G : Third Generation 

  • 3G means the third generation of mobile telephone technology.
  •  It uses the Universal Mobile Telecommunications System (UMTS) and is based on GSM Standards.
  • Typically 3G provides data transfer rates 384 kbit/second and depending on various networks the data rate may vary
  • Introduction of 3G network made video calling and seamless streaming of video possible, with download speed of up to 3.1Mbps.
  • 3G networks offer greater security than their 2G predecessors.

HSDP it is an enhanced form 3G technology xand usually classified as 3.5G technology. The technology can provide support speed of 7.2 Mbits per second but in reality, you will get a peak speed of 3 Mbits still, it is fine for mobile TV streaming and other high-end transmission. Of course, you mobile should support this technology to use it and you should be at cell site to take advantage of this service.

HSPA+ (High-Speed Packet Access) is an evolution to HSPA (HSUPA + HSDPA) technology which provides much fast speed to browse internet, downloading, uploading and sending/receiving emails and instant messages. It can provide the support speed of up to 168 Mbits/s however, in reality, you’ll get a peak speed of 21 Mbits/s which is because the current 3G network architecture is not designed to handle such massive bandwidth.

WCDMA is also a 3G technology. It stands for Wide-band Code-Division Multiple Access (CDMA). Interestingly, this technology is actually used in the GSM systems.

LTE Network : Long Term Evolution it is the  first step forward  to achieve true 4G technologies
  • 4G is the fourth generation of mobile technology. It is also called LTE (Long Term Evolution). 4G connection works as good as a wi-fi connection of your home or office. 
  • High throughput: High data rates can be achieved in both downlink as well as uplink. This causes high throughput.
  • Low latency: Time required to connect to the network is in range of a few hundred milliseconds and power saving states can now be entered and exited very quickly.

4G LTE :

Summary :

GPRS(114Kbps) < EDGE (368 Kbps) < 3G(3.1Mbps) < HSDPA(14Mbps) < HSPA+(168 Mbps) < 4G/LTE(299.6Mbps)

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