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4G is a networking technology for smart phones that allows devices to connect to the cyberspace , utilize mobile broadband , stream video and music, and access cloud computing applications.

What is 4G?

4G is an International Telecommunication Union ( ITU ) specification for the fourth generation of cellular networking and broadband mobile capabilities. 4G technologies enable IP -based vocalization, data, and streaming multimedia at college speeds than the previous generation, 3G. Telecommunication companies that accept deployed 4G in the U.Due south. include Verizon, AT&T, and T-Mobile.

4G technology and speeds

4G is an IP-based and packet-switched evolution of 3G technologies (such as WCDMA , HSDPA , CDMA2000 and EVDO ) that uses vocalization communications.

LTE, or Long-Term Evolution, is the technology on which 4G networks run. Most 4G phones cannot meet the standards for 4G , so carriers began advertising their coverage as LTE or 4G LTE instead. LTE-Advanced (LTE-A), or LTE+, has faster upload and download speeds than standard LTE. Other technologies considered to be 4G standards include Ultra Mobile Broadband ( UMB ) and the IEEE 802.xvi ( WiMax ) standard.

4G download speeds range from fifteen megabits per 2d (Mbps) to 50 Mbps, depending on the version of LTE the cellular device is using, and 4G upload speeds range from 10 to 20 Mbps. On average, 4G download speeds are about five times faster than 3G .

A brusque background of 4G

Each cellular network generation refers to a cardinal change in the engineering's nature. Each update happens around every 10 years.

Generation	Yr	Engineering
1G	1981	Analog telecommunication for phone calls
2G	1991	Digital telecommunication; text message capabilities
3G	2001	Cyberspace access and video conferences
4G/LTE	2009	Loftier-definition boob tube; mobile broadband access
5G	2019	Improved download and upload speeds; existent-time response for applications
6G	In development	To be adamant

The ITU specified 4G standards in 2008, Verizon began deploying LTE in 2010, and 4G LTE is now the network that non-5G phones rely on. Some cellular providers no longer support 3G, and the major US providers who nevertheless do plan to driblet support for 3G by the end of 2022. Although 3G enabled Wi-Fi connections, downloads, and uploads, it is not sufficient for quickly accessing content like music, video, and video calling over a cellular network while maintaining picture and sound quality.

4G turned jail cell phones into computers and made information technology possible for workers to perform some aspects of their jobs over a mobile device, which enabled bring your ain device (BYOD) remote work capabilities.

Is 4G dead?

4G is not the about recent cellular network generation; 5G has been in development for years, and all 3 of the major U.S. providers—Verizon, AT&T, and T-Mobile—have been gradually deploying it over the past iii years. Telecommunications companies are as well talking nigh 6G, though it's not yet been deployed.

Although 5G has been receiving attention and focus from telecommunications companies through their marketing campaigns, it's non yet widespread plenty to support all consumers. 5G networking equipment, such as nodes and cell towers, have not been fully deployed and likely won't be for some other couple of years at the least.

AT&T doesn't yet accept its own standalone 5G network , and Verizon's projected goals for mid-band coverage involve the end of 2023, according to Forbes. The fastest spectrum of 5G, millimeter-wave, works if there are no obstacles, such as buildings, to terminate it, but information technology's currently only deployed in major metropolitan areas. Though T-Mobile has deployed the largest 5G coverage, it's non much faster than Verizon'south existing 4G. Approximately 75% of the United States is covered by 5G technology, just the majority of that coverage is low-band spectrum, which isn't much faster than 4G .

Not only does 4G notwithstanding power smart devices, information technology too makes up the difference when 5G fails. 5G sometimes drops coverage, and 4G has to choice up where it left off. And at to the lowest degree one major provider, Verizon, is withal developing its 4G networks . Tests by firms like Ookla have found that Verizon's 4G notwithstanding has faster upload and download speeds than many 5G networks .

To learn more than nigh 4G, read How 4G and 5G networks are vulnerable to Deprival-of-Service attacks .

This article was updated February 2022 past Jenna Phipps.

Vangie Aggravate

Vangie Beal is a freelance business and technology writer roofing Cyberspace technologies and online business since the tardily '90s.