| 摘要 |
A method and apparatus for providing active set information for a mobile to provide seamless interworking during hard handoffs is disclosed. This is accomplished by providing active set data in the facdir2 return message during the handoff procedure. The handoff method includes the steps of sending to the old base station quality and received signal strength measurements gathered by the mobile station, sending from the old base station to the new base station a message to invoke negotiations between the old base station and the new base station, sending from the new base station to the old base station a return message, the return message including an active set information for the new base station, providing by the old base station the active set information for the new base station and directing the mobile station to perform a handoff to the new base station, performing the handoff to the new base station by the mobile station and indicating to the old base station and the new base station by the mobile station the completion of the handoff and notifying the old base station that the mobile station has moved to the new base station.
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