IMS MULTIMEDIA COMMUNICATION METHOD AND SYSTEM, TERMINAL AND IMS CORE NETWORK

摘要

An IP MultiMedia Subsystem (IMS) multimedia communication method and system, a terminal and an IMS core network are disclosed in the present document, wherein, the IMS multimedia communication method includes: performing signaling negotiation between a terminal and an IMS core network, and establishing an IP security-Encapsulate Secure Payload (IPSec-ESP) security association for media transmission between the terminal and the IMS core network during the process of signaling negotiation; and performing transmission of media contents through the IPSec-ESP security association for media transmission between the terminal and the IMS core network. In the present document, it guarantees the security of the media contents transmitted between the terminal and the IMS core network, solves the security problem of multimedia communication in the IMS in the related art, and avoids that the media contents are maliciously stolen and falsified by others during the transmission between the terminal and the IMS core network.