Today any new network designed from scratch to enable new Radio Access Network technologies ( i. e. 3G, 4G, Wi-MAX, etc ..) are also referred to as greenfield projects.

* Recently ( ANTEL ) and Claro ( Telmex ), launched LTE 4G with high speed connections, about 20Mbit / s.

This liability will only increase as the new third-generation ( 3G ), LTE, WiMAX, and fourth-generation ( 4G ) phones are introduced, as the base stations will be located closer together.

* Cellular networks: 0G, 1G, 2G, 3G, Beyond 3G ( 4G ), Future wireless

It offers include 4th generation Wireless Technology ( 4G ), Wi-Fi, Wireless Ethernet and fixed high-speed wireless link services, as well as wholesale wireless data capacity.

In April 2011, T-Mobile revived the Sidekick brand for a new HSPA +- compatible Android smartphone developed by Samsung, known as the Sidekick 4G, based on the Galaxy S. While not utilizing the Hiptop's operating system, it incorporates features from the original series, including the keyboard, 3. 2 megapixel camera ( minus LED flash ), and the four-button layout, and adds a new Android-powered interface incorporating elements from the Hiptop's operating system.

Two 4G candidate systems are commercially deployed: the Mobile WiMAX standard ( at first in South Korea in 2006 ), and the first-release Long Term Evolution ( LTE ) standard ( in Scandinavia since 2009 ).

This article uses 4G to refer to IMT-Advanced ( International Mobile Telecommunications Advanced ), as defined by ITU-R. An IMT-Advanced cellular system must fulfill the following requirements:

TeliaSonera started deploying LTE ( branded " 4G ") in Stockholm and Oslo November 2009 ( as seen above ), and in several Swedish, Norwegian, and Finnish cities during 2010.

A smart device is an electronic device that is cordless ( unless while being charged ), mobile ( easily transportable ), always connected ( via WiFi, 3G, 4G etc.

Telcordia research has yielded more than 1, 800 patents across ADSL, ATM / SONET, Advanced Intelligent Network ( AIN ), optical networking / Wavelength-division multiplexing ( WDM ), wireless ( 3G / 4G, cellular, mobility ), security and more.

It provides GSM-900, GSM-1800, UMTS-900 ( 3G ), UMTS-2100 ( 3G ) and 4G LTE / DC-HSPA + services with the brands 1010, one2free and New World Mobility.

In August 2012, the company had an press meeting that unvieled a new phone ( The LG Motion 4G ), a new, limited-time $ 55-dollar unlimited plan, and showed other phones to be released in the future, including the highly anticipated Samsung Galaxy S3.

G: Pyrotechnic substance or article containing a pyrotechnic substance, or article containing both an explosive substance and an illuminating, incendiary, tear-producing or smoke-producing substance ( other than a water-activated article or one containing white phosphorus, phosphide or flammable liquid or gel or hypergolic liquid ) ( 1. 1G, 1. 2G, 1. 3G, 1. 4G ).

Further improvements were made when the 3GPP developed third generation ( 3G ) UMTS standards followed by fourth generation ( 4G ) LTE Advanced standards.

) Vendors are shifting from 3G to 4G, starting in the area around Montevideo.

The use of this technology also gives room for expansions, such as from 2G to 3G and, most recently, 4G technology, which stands for fourth generation of cell phone mobile communications standards.

These included 3G / 4G basestations, networking infrastructure and mobile computing applications.

First release LTE is not backwards compatible with 3G, but is a pre-4G or 3. 9G technology, however sometimes branded " 4G " by the service providers.

2G has been superseded by newer technologies such as 2. 5G, 2. 75G, 3G, and 4G ; however, 2G networks are still used in many parts of the world.

Smartphones are easy to carry and easy to use, great interface design, touchscreens and fast wireless network abilities like 4G and 3G phones. more than 55 % of global 2000 organization will deploy mobile SFA project by 2011 and newer Smartphone platforms, such as Apple's iOS and Google's Android, point to a future of increasing diversity in device selecting and support for sales force.

Starting in roughly 2006, mobile broadband access is increasingly available at the consumer level using " 3G " and " 4G " technologies such as HSPA, EV-DO, HSPA +, and LTE.

Most major cablecos are offering digital television via ADSL and 3G / 4G LTE nowadays, but Maxivision has been the only IPTV operator in the country since its inception.

It provides 2G ( mova ) PDC cellular services on the 800 MHz band, and 3G FOMA W-CDMA services on the 2 GHz ( UMTS2100 ) and 800 MHz ( UMTS800 ( Band VI )) and 1700 MHz ( UMTS1700 ( Band IX )) bands, and 4G LTE services.

Introduced in August 2010, the free Vonage Mobile application for Facebook provides " free one-touch mobile-to-mobile calls to Facebook friends who also have the application " for iPhone / iPad, iPod touch and Android devices, operating over Wi-Fi ( free ) and 3G / 4G networks ( uses data minutes ).

Fixed WiMAX is also considered as a wireless backhaul technology for 2G, 3G, and 4G networks in both developed and developing nations.

As of September 2012, SK Telecom operates 2G IS-95 / CDMA 2000, 3G WCDMA / HSPA +, 4G Mobile WiMAX, and LTE network.

As seen below, the spread spectrum radio technology used in 3G systems, is abandoned in all 4G candidate systems and replaced by OFDMA multi-carrier transmission and other frequency-domain equalization ( FDE ) schemes, making it possible to transfer very high bit rates despite extensive multi-path radio propagation ( echoes ).

This was followed, in 2001, by 3G multi-media support, spread spectrum transmission and at least 200 kbit / s peak bitrate, in 2011 / 2012 expected to be followed by " real " 4G, which refers to all-Internet Protocol ( IP ) packet-switched networks giving Ultra Mobile Broadband ( gigabit speed ) access.

Safaricom, a telecommunication company in East & Central Africa, began its setup of a 4G network in October 2010 after the now retired Kenya Tourist Board Chairman, Michael Joseph, regarded their 3G network as a white elephant.

* Turbo codes are used extensively in 3G and 4G mobile telephony standards e. g. in HSPA, EV-DO and LTE.

* Integrated Mobile Broadcast, a technology for MobileTV application using 3G / 4G networks

Cox utilized Sprint's voice and 3G networks and also had plans to build their own 4G LTE network.

Longer term, the 3GPP Long Term Evolution ( LTE ) project plans to move UMTS to 4G speeds of 100 Mbit / s down and 50 Mbit / s up, using a next generation air interface technology based upon orthogonal frequency-division multiplexing.

Many games used DOS / 4GW, which was developed by Rational Systems as a subset of DOS / 4G and was distributed with the Watcom C compiler.

DOS programs like DOOM could use extenders like DOS / 4G to run in protected mode while still using the DOS API.

In March 2008, the International Telecommunications Union-Radio communications sector ( ITU-R ) specified a set of requirements for 4G standards, named the International Mobile Telecommunications Advanced ( IMT-Advanced ) specification, setting peak speed requirements for 4G service at 100 megabit per second ( Mbit / s ) for high mobility communication ( such as from trains and cars ) and 1 gigabit per second ( Gbit / s ) for low mobility communication ( such as pedestrians and stationary users ).

Since the first-release versions of Mobile WiMAX and LTE support much less than 1 Gbit / s peak bit rate, they are not fully IMT-Advanced compliant, but are often branded 4G by service providers.

SoftBank 4G uses TD-LTE / LTE.

SoftBank 4G speeds more than 110Mbit / s.

* MobileNext-a set of products around software controllers and service plane on MX-series routers mainly intended for 4G / LTE mobile carriers

* S1 is a transport interface used to connect eNode Bs to EPC in a LTE / 4G network.