METHOD AND SYSTEM FOR PERFORMING HANDOVER OF MULTIMODE-MULTIBAND TERMINAL BY USING MULTI TARGET CELL IN MOBILE COMUUNICATION ENVIRONMENT

摘要

(a) receiving a WCDMA signal transmitted from the WCDMA system through a WCDMA modem and measuring an energy of carrier/interference of others (Ec/Io) value; (b) turning on a CDMA-2000 modem according to the measured value and entering into an idle state; (c) creating multi-target cell information by monitoring a target cell for handover; (d) requesting handover to the WCDMA system; (e) receiving a handover command from the WCDMA system; and (f) turning off the WCDMA modem and switches a communication link to the CDMA-2000 system through the CDMA-2000 modem.