Disclosed is a handover method in radio communication. A base station apparatus monitors the receiving state of a terminal, detects, based upon the receiving state, whether the terminal is one in which there is a possibility that loss of a call or a decline in quality will occur or one in which loss of a call or a decline in quality has occurred, and hands over the terminal to another base station apparatus having a carrier frequency different from that of the present base station apparatus.

 
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< Cellular mobile communication network operating method and system

< Common signaling method and apparatus

> Method for improving mobility in discontinuous coverage networks, corresponding access controller, and corresponding radio access point

> Position information management system

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