Patent ID: 8098634

Claim:
A method for performing a handover from a Wideband Code Division Multiple Access (WCDMA) system to a Code Division Multiple Access (CDMA) system in a multimode terminal having a WCDMA module and a CDMA module, comprising: determining whether the handover to the CDMA system is necessary during a call through the WCDMA module; acquiring a pilot signal from the CDMA system by activating the CDMA module if it is determined that the handover to the CDMA system is necessary; receiving a sync signal if the pilot signal from the CDMA system is acquired; transmitting information for the handover to the WCDMA system through the WCDMA module; allowing the CDMA module to enter into a CDMA traffic state using handover information received from the WCDMA system through the WCDMA module; and releasing a traffic state of the WCDMA module.