System and method for handoff from WCDMA network to CDMA2000 1x network

摘要

system and method of the present invention is to enable a handoff (handoff) to the CDMA2000 1x network in a WCDMA network as for the case that the WCDMA network to the CDMA2000 1x network in the mobile phone communication data is moved in the data connection is disconnected and connected to the service batdeon CDMA2000 1x network, reduce the time required and the time to receive the data service again, WCDMA by keeping the IP address as that used in the network for a system and method for enabling a hand-off in the CDMA2000 1x network as WCDMA network to allow the handoff, WCDMA networks, including mobile phones, and formed the SGSN and the GGSN and the 1x MSC In the CDMA2000 1x network and the coexistence of a system including a PDSN, PDSN by the GGSN and the WCDMA network in the CDMA2000 1x network to hand off is possible to form the cross-connected by the PP Interface, transmission and reception of data in a WCDMA network, CDMA2000 If you go to a 1x network can perform a handoff in a short time without an IP change.