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3G is the "Third Generation" mobile network infrastructure. As of 2007, 3G technologies were deployed by mobile operators in most of Europe, East Asia, and North America. Supports much higher data speeds than previous mobile networks, in some cases approaching wired broadband connections.

Core 3G technologies include:

A fourth generation of mobile network infrastructure (4G) is expected to provide further improvements in speed and capacity, but standards have not yet been finalized.