4G refers to the fourth generation of cellular wireless standards. It is a successor to 3G and 2G standards, with the aim to provide a wide range of data rates up to ultra-broadband. 4G allow user to use their mobile phone to access to the internet source faster.
The peak date rate of 4G could be up to 100 Mbit/s ( wow..... as same as the brandband I use at home ). However, I have been searching for the data about 4G for a period of time ( as I wanna buy iphone 4G~ ), but I still can't find a clear defination of what is it.
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