A report from Telephony Online suggests that Apple's official carrier of the iPhone in the USA is in the midst of upgrading its network to double the current capacity.
The report states that AT&T is making tweaks to its current HSPA network which will bring the capacity up to 7.2Mbps.
AT&T is increasing the downlink capacity on its high-speed packet access (HSPA) from 3.6 megabits per second to 7.2 Mb/s through software upgrades at the base station, said Scott McElroy, AT&T Mobility vice president of technology realization.
The report goes onto add that AT&T will be looking to implement HSPA+ which will be capable of speeds up to 21Mbps.