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4G

Also known as 4-е поколение

4G refers to the fourth generation of cellular network technology, introduced in the late 2000s and early 2010s. Compared to preceding third-generation (3G) technologies, 4G has been designed to support all-IP communications and broadband services, and eliminates circuit switching in voice telephony. It also has considerably higher data bandwidth compared to 3G, enabling a variety of data-intensive applications such as high-definition media streaming and the expansion of Internet of Things (IoT) applications.

AI overview

4G is the fourth generation of cellular network technology that emerged in the late 2000s and early 2010s, designed to deliver much faster data speeds than its predecessor 3G by using all-IP communications and eliminating older circuit-switching voice methods. It matters because the higher bandwidth enables data-intensive applications like HD video streaming and expanded Internet of Things devices that weren't practical on slower networks.

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Commons category: 4G

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~31 min read

Article

31 sections

Contents

Technical overview
Background
Frequencies for 4G+ LTE networks
IMT-Advanced requirements
System standards
IMT-2000 compliant 4G standards
LTE Advanced
IEEE 802.16m or WirelessMAN-Advanced
Forerunner versions
Long Term Evolution (LTE)
Mobile WiMAX (IEEE 802.16e)
TD-LTE for China market
Discontinued candidate systems
UMB (formerly EV-DO Rev. C)
Flash-OFDM
iBurst and MBWA (IEEE 802.20) systems
Principal technologies in all candidate systems
Key features
Multiplexing and access schemes
IPv6 support
Advanced antenna systems
Open-wireless Architecture and Software-defined radio (SDR)
History of 4G and pre-4G technologies
Disadvantages
Beyond 4G research
The future of 4G
Past 4G networks
See also
Notes
References
External links

The earliest deployed technologies marketed as "4G" were Long Term Evolution (LTE), developed by the 3GPP group, and Mobile Worldwide Interoperability for Microwave Access (Mobile WiMAX), based on IEEE specifications. These provided significant enhancements over previous 3G and 2G.