Basic things about mobile web service

Do you know what you mean basic concepts in mobile telephony, such as EDGE or GSM acronym?If you do not know - here's an opportunity to learn, and if you know - this is a great opportunity to remember all the details about it.

GSM (Global System for Mobile Communications) is the most popular and most widely used international standard for digital mobile communications.It is primarily designed for voice transmission at a distance and short text messages up to 160 characters (SMS - Short Message Service).At this moment, there are four frequencies GSM networks, which grouped with Quad Band term and it include frequency range of 850 MHz, 900 MHz, 1800 MHz and 1900MHz.Domestic network are mainly working on 900/1800 MHz.Phones may be Quad Band (two frequencies), Triple and Quad Band - with more frequencies support the better phone it gets and allows its use in almost every country on the planet.

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GPRS (General Packet Radio Service) is to improve GSM networks that enables the transmission of data over the mobile network.Using the GPRS network you can access the Internet Wap (simple graphical text-Net) or other packet networks from mobile devices at speeds up to 114 Kbit / s.Access time to applications and other content on the Internet is much shorter than the GSM network.GPRS network is available wherever there is GSM signal coverage.Today GPRS is very rarely used for surfing the internet, because the data transmission is slow and unreliable over a long period of use (often leads to blocking).

EDGE (Enhanced Data Rates for Global Evolution) is a further improvement of the GSM networks that enables faster data transmission over the mobile network.Improving the speed is achieved thanks to a new type of signal modulation on the radio part of the network, which enables reaching speed data close to those provided by 3G networks.EDGE enables data transfer at up to about 300 Kbit/s when downloading data and 250 Kbit / s when sending data (upload).EDGE network is available wherever there is GSM signal coverage.What is different from 3G, UMTS networks or other forms is a software upgrade, without investing in hardware on the base stations, which are broadcasting the signal.Therefore, it is cheaper for the network installation and its maintenance costs less.However, EDGE is suffering from frequent blocking and overload, and it’s not the most reliable partner for surfing the Internet, but provides a higher dose of freedom and it’s easier to access the Internet than on GPRS networks.

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3G (UMTS / WCDMA) is a set of mobile telecommunications standards "3G Wireless Networks", including GSM, EDGE, UMTS, and CDMA2000, as well as DECT and WiMAX.Services include broadband wireless transmission of audio (telephone), video calls, and wireless data transfer (internet), all at the same time in a mobile enviroment.Compared to 2G (GSM) and 2.5G (EDGE) networks, 3G allows simultaneous use of telephone and data services, as well as higher data transfer speeds (up to 14.0 Mbit / s download and up to 5.8 Mbit/s to send the user).International Telecommunication Union (ITU) defined the thirdgeneration (3G) as mobile telephony standard IMT-2000.The lack of 3G networks is that the base station must be upgraded with the new equipment, require special 3G phones to use, consume more energy and require more base stations for high-quality coverage of the terrain. The signal is practically much shorter than the GSM network.

HSPA+ (Evolved High Speed ​​Packet Access) mobile networks is the promotion of third-generation (3G network), which has been made even faster data transfer using the same frequency spectrum intended for 3G.Data transmission in these networks is speed up to 42 Mbit/s when downloading data and 5.7 Mbit/s when sending data (upload).
If you are still unclear - ask us, we are here for you!In the end, look at some of the best 3G devices from our offer.