AT&T Identifies Problem Affecting iPhone 4’s Upload Speeds

AT&T has identified the problem affecting iPhone 4 users data transfer speeds in conjunction with Alcatel Lucent, the maker of the equipment used to support the HSUPA (high-speed uplink packet access) protocol that the new smartphone uses. While HSUPA technology theoretically offers much faster data transfer speeds than traditional 3G networks do, many users of Apple’s iPhone 4 have been reporting that their speeds dropped off to less than 100KB per second upload, which is considerably slower than what even the iPhone 3G is capable of and normally manages. The problem that has affected regions from Philadelphia to Seattle is apparently software based, and Alcatel Lucent says that it is working on it and hopes that no physical repair work will be needed on affected cell towers.

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