5G is the fifth generation wireless technology for digital cellular networks that began wide deployment in 2019.

A cellular network or mobile network is a communication network where the last link is wireless.

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As with previous standards, the covered areas are divided into regions called "cells", serviced by individual antennas.

In geography, regions are areas that are broadly divided by physical characteristics, human impact characteristics, and the interaction of humanity and the environment.

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Virtually every major telecommunication service provider in the developed world is deploying antennas or intends to deploy them soon.


The frequency spectrum of 5G is divided into millimeter waves, mid-band and low-band.

Extremely high frequency is the International Telecommunication Union designation for the band of radio frequencies in the electromagnetic spectrum from 30 to 300 gigahertz.

A spectrum is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum.


Low-band uses a similar frequency range as the predecessor, 4G.

4G is the fourth generation of wireless mobile telecommunications technology, succeeding 3G.


5G millimeter wave is the fastest, with actual speeds often being 1–2 Gbit/s down.


Frequencies are above 24 GHz reaching up to 72 GHz which is above the extremely high frequency band's lower boundary.


The reach is short, so more cells are required.


Millimeter waves have difficulty traversing many walls and windows, so indoor coverage is limited.


5G mid-band is the most widely deployed, in over 20 networks.


Speeds in a 100 MHz wide band are usually 100–400 Mbit/s down.

S is the 19th letter in the Modern English alphabet and the ISO basic Latin alphabet.


In the lab and occasionally in the field, speeds can go over a gigabit per second.


Frequencies deployed are from 2.4 GHz to 4.2 GHz.


Sprint and China Mobile are using 2.5 GHz, while others are mostly between 3.3 and 4.2 GHz, a range which offers increased reach.

China Mobile is the trade name of both China Mobile Limited and its ultimate controlling shareholder, China Mobile Communications Group Co., Ltd., a Chinese state-owned company.

China, officially the People's Republic of China, is a unitary sovereign state in East Asia.


Many areas can be covered simply by upgrading existing towers, which lowers the cost.


5G low-band offers similar capacity to advanced 4G.


In the United States, T-Mobile and AT&T launched low-band services on the first week of December 2019.

The United States of America, commonly referred to as the United States or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.


T-Mobile CTO Neville Ray warns that speeds on his 600 MHz 5G may be as low as 25 Mbits in 2019.


The performance will improve, but cannot be significantly greater than robust 4G in the same spectrum.


Verizon, AT&T, and almost all 5G providers in 2019 have latencies between 25–35 milliseconds.

Verizon Communications Inc. is an American multinational telecommunications conglomerate and a corporate component of the Dow Jones Industrial Average.

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