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Information Technology News Why iPhone 2.0.2 fixed problems for some users
Information Technology News Why iPhone 2.0.2 fixed problems for some users | Why iPhone 2.0.2 fixed problems for some users |
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| Technology feature - iPhone | |
| by Stephen Withers | |
| Friday, 29 August 2008 | |
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Page 1 of 3   
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According to Roughly Drafted, a "source close to AT&T" reportedly claimed that a faulty power control algorithm caused iPhone 3Gs to request more power than was necessary. If sufficient handsets in a given cell do this, the aggregate demand exceeds the available power and some handsets will drop calls as a result. Similarly, high data rates require more transmission power. If handsets are already asking for more power than necessary, there is no headroom to deliver data at the higher speeds. This is where things get interesting. Roughly Drafted's source said: "In a mixed environment where users are running 2.0, 2.0.1, and 2.0.2, the power control problems of 2.0 and 2.0.1 will affect the 2.0.2 users." "It is not the network that is fault but the interaction of the bad power control algorithm in 2.0 and 2.0.1 software and the network that is at fault." So why does the updated software help some users and not others? Find out on page two. |
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