Apple Blames iPhone 4 Reception Issue on Faulty Formula
Trapped Like A Rat!
Old trick. People should know that the bars are a relative estimation of signal, not an accurate measurement
On the technical side you need to ask why a call drops. Is it because of the phone or the network? Often calls will drop because the network is taxed beyond its ability to transmit data. AT&T has more bandwidth than Verizon and T-Mobile So the real issue is the amount of data being put through the network.
This is because of the iPhone users out there. Put the same amount of iPhone users on Verizon's or T-Mobile's network with half of the bandwidth and it would burst at the seams.
Calls can also drop because the phone has bad settings that dismiss the network when the signal threshhold is set improperly.
I don't...
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Bandwidth on the RF layer is a huge issue. If my channel is only 1.25mhz wide I have fewer options on a CDMA system. HSPA uses a 5 mhz wide channel so there are more options to the network provider. If your license is only 30 mhz in the market how many 1.25 mhz channels can you use? keep in mind voice commands a portion of this as well. Since the CDMA providers stopped at rev a they are stuck with 1.25 mhz channels. Had they gone to rev b they could link multiple channels. I don't believe a 3G network is the ideal environment for the iPhone. It would be much better on a WIMAX or LTE network.
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