System and method of interconnection between network of universal mobile communication system and evolution network
A universal mobile communication and evolution network technology, applied in the field of universal mobile communication system network and evolution network interconnection, can solve the problems of increasing signaling, increasing handover time, reducing mobility management efficiency, etc. The effect of shortening the switching time
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[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0048] In the present invention, the UTRAN in the UMTS network is connected to the packet core network in the evolved network, so that when the dual-mode UE switches and roams between the UMTS network and the evolved network, only the evolved packet core network performs mobility management, Improve the efficiency of mobility management; and, when the dual-mode UE moves from the evolved access network to the area covered by only the UMTS network, it only needs to establish a data link between the evolved packet core network and UTRAN, saving handover time, It is easier to meet the stringent requirements of 3GPP on switching time between systems.
[0049] Further, the UTRAN and the evolved packet core network can be connected through the R3 interface, and the R3 in...
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