UMTS分组域拨测系统中重定位的研究与实现

UMTS PS domain test system can test the routing patency and service performance of the mobile core network. It access to core network from different interfaces to achieve the purpose in the way of initiating signaling and service data to the target network node. In the UMTS mobile telecommunication system, the relocation between RNS(Radio Network Subsystem)s is one of the important procedures of RANAP(Radio Access Network Application Part) protocol, so it should be implemented by the test system. This paper describes a software design method for relocation procedure, which can be used in the core network test system. Simulating the RNS functional entity access to CN, via the Iu interface, to test the SGSN network element. Verified by actual test instrument and the signaling data packet captured by wireshark, the function demonstrated is compatible with the 3GPP standard.