CDMA2000 / GPRS roaming method and apparatus related to

摘要

PROBLEM TO BE SOLVED: To provide a method and apparatus which enables roaming between a GPRS system and a CDMA2000 packet data system.;SOLUTION: Interworking and Interoperability Function IIF architectures and corresponding call flows are provided for CDMA2000/GPRS roaming scenarios such as a GPRS foreign mode with Mobile IPv4, a GPRS foreign mode with Simple IPv4 or IPv6, a CDMA2000 packet data foreign mode with Mobile IPv4, and a CDMA2000 packet data foreign mode with Simple IPv4 or IPv6.;COPYRIGHT: (C)2014,JPO&INPIT