HSPA+, otherwise known as Evolved High-SpeedPacket Access, is the standard for a 4G-esque wireless broadband technology.

The standard is an evolution of HSPA andHSDPA and allows for extremelyfast data download rates of 84Mbit/s.

For now, on smartphones, the maximum theoretical speed achievable is 22Mbit/swhich should grow to at least 44Mbit/s by next year.

Devices use MIMO/DualCell to achieve such high speeds and therefore those with the best connection will be those closest to a tower.

Into the future, HSPA+ will double its theoretical peak speed up to 168Mbit/s.

Additionally, devices using HSPA+ have improved battery life and quicker wake time from areas with no service.

In the U.S., T-Mobile and AT&T use the standard although AT&T is moving towards the "true" 4G,LTE.

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