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''“Synchronization is as important as power at the cell site.”'' <ref>http://www.juniper.net/us/en/local/pdf/whitepapers/2000400-en.pdf</ref>
The quote above suggests that we can think of
Modern wireless communication systems require at least knowledge of frequency and often knowledge of phase as well in order to work correctly. Base stations need to know what time it is, and they usually get this knowledge from the outside world somehow (from a GPS Time and Frequency receiver, or from a synchronization source somewhere in the network they are connected to).
But if the connection to the reference is lost then the base station will be on its own to establish what time it is. The base station needs a way to establish accurate frequency and phase (to know what time it is) using internal (or local) resources, and that’s where the function of
==The Importance of GPS Derived Timing==
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