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Mobile telecom munications protocols for data networks phần 2

Điều này tất nhiên là một đảm bảo cho vendorâ € ™ khách hàng thiết bị interoperating EFI ¬ ciently với các thiết bị khác cũng phù hợp với việc phát hành tạo khả năng tương tự.6,14 Triển khai phiên bản khác nhau của Nghị định thư MMS Như thể hiện trong chương này, mỗi giao thức MMS đơn vị dữ liệu được đánh dấu bằng một phiên bản MMS | AGENT-BASED SERVICE IMPLEMENTATION 13 without changing the basic functionality of the network for the establishment and the release of resources such as calls and connections. In the IN architecture the intelligence is kept inside the core network that reduces the need to update the equipment of the Access Network AN representing the most widespread and expensive portion of the overall network. The IN architecture shown in Figure 2.2 comprises functional entities mapped into physical elements. The communication between network entities is done through Signaling System No. 7 SS7 . The Intelligent Network Application Protocol INAP also uses SS7 for the IN Physical entities Functional entities SCS Service Creation System SSF Service Switching Function SMS Service Management System CCF Call Control Function SDF Service Data Function SCP Service Control Point SCEF Service Creation Environment Function IP Intelligent Peripheral SRF Specialized Resource Function SSP Service Switching Point SCF Service Control Function SMF Service Management Function SMAF Service Management Access Function Figure 2.2 Deployment of functional entities to physical entities in the IN. 14 MOBILE AGENT-BASED SERVICE IMPLEMENTATION MIDDLEWARE AND CONFIGURATION Figure 2.3 Introduction of DOT and MAT in the IN for service design deployment and maintenance. messages. IN architecture can support third-generation mobile systems and has the capacity of the third-party call setup between IN and the Internet. Figure 2.3 illustrates how DOT and MAT are introduced at the service design deployment and maintenance level. Services are designed as Java-based MAs in Service Creation Environments SCEs and then transferred to the Service Control Points SCPs by using capabilities provided by Mobile Agent Platforms MAPs . In this architecture SCPs contain CORBA and MAT in their design. Service providers benefit from a flexible service-provisioning environment by adopting object-oriented techniques for software .