3G, 4G, and 5G Comparison
3G
4G
5G
Deployed 2004-2005
2006-2010
By 2020
Bandwidth 2 mbps
200 mbps
> 1 gbps,
Service Integrated
Dynamic information access, variable devices
Dynamic information access, variable devices with all capabilities
high-quality audio, video and data
(James Dean, Raconteur, December 7, 2014) 4
Sidebar: Why Doesn’t My Cellphone Work When I Travel Abroad? As mobile phone technologies have evolved, providers in different countries have chosen different communication standards for their mobile phone networks. There are two competing standards in the US: GSM (used by AT&T and T-Mobile) and CDMA (used by the other major carriers). Each standard has its pros and cons, but the bottom line is that phones using one standard cannot easily switch to the other. This is not a big deal in the US because mobile networks exist to support both standards. But when traveling to other countries, you will find that most of them use GSM networks. The one exception is Japan which has standardized on CDMA. It is possible for a mobile phone using one type of network to switch to the other type of network by changing out the SIM card, which controls your access to the mobile network. However, this will not Information Systems for Business and Beyond (2019) pg. 102
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