A method of an Inter-RAT handover between a WCDMA service and a CDMA service of a mobile communication device having a WCDMA modem and a CDMA modem, the method including: performing the WCDMA service in a WCDMA network; move from the WCDMA network to a CDMA network; determining an Inter-RAT idle roaming...http://www.google.ca/patents/US7796553?utm_source=gb-gplus-sharePatent US7796553 - Method and apparatus for efficiently managing power-up timer for high-speed inter-radio access technology handover in mobile communication device
