Patent ID: 8126467

Claim:
A method for controlling a handoff in an optical distributed network system using MIMO (multi input multi output), the method comprising steps of: classifying, for each cell, a channel for transceiving data with a mobile terminal, into a first channel and a second channel, and setting an active cell; receiving a signal strength of a predetermined cell from the mobile terminal, measuring the received signal strength of the predetermined cell, and determining on/off status of the predetermined cell; when the predetermined cell is determined to be turned on, releasing the first channel of the active cell, switching a path to a first channel of the predetermined cell, and keeping the second channel of the active cell; receiving a signal strength of the active cell from the mobile terminal, measuring the received signal strength of the active cell, and when the measured signal strength of the active cell is less than a preset critical value for a predetermined period of time, turning off the active cell; and when the active cell turns off, releasing the second channel of the active cell, and switching the path to a second channel of the predetermined cell.