A Conversation for Mobile Phones and Aircraft
The other reason...
Is mise Duncan Started conversation Dec 16, 2005
As you move from cell to cell the phone undertakes a process of registering itself with the new cell and it does this by detecting the signal strength from the nearest base stations.
If you were moving very fast above the base stations it would be constantly registering with new cells and this extra overhead (pun intended) would potentially cause massive network overload problems for the cell network.
The pico cell "drowns out" the other cells and so prevents the phones constantly acquiring new cells.
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