A method and apparatus for performing inter-system hard handoff between communication systems or inter-frequency hard handoff within a CDMA communication system is disclosed. The purpose is to reduce the probability of dropped calls during inter-system hard handoff. In the event that a hard handoff attempt...http://www.google.com/patents/US6810254?utm_source=gb-gplus-sharePatent US6810254 - Method and apparatus for performing mobile assisted hard handoff between communication systems
