Evolution of Signaling Information Transmission

Figure 1

NGN control-plane protocols. AGWC-FE (Access Gateway Control FE); AM-FE (Access Management FE); BGP (Border Gateway Protocol); BGWC-FE (Breakout Gateway Control FE); CAMEL (Customized Application for Mobile network Enhanced Logic); CDC-FE (Content Delivery Control FE); CDF (Content Delivery Function); CD&LC-FE (Content Distribution and Location Control FE); CDP-FE (Content Delivery Processing FE); COPS (Common Open Policy Service); CR-LDP (Constraint-based Routing Label Distribution Protocol); FE (Functional Entity); HDC-FE (Handover Decision and Control FE); HGWC-FE (Home Gateway Configuration FE); HTTP (Hypertext Transfer Protocol); IBGWC-FE (Interrogating Breakout Gateway Control FE); I-CSC-FE (Interrogating Call Session Control FE); INAP (IN Application Protocol); IP (Internet Protocol); ISDN (Integrated Services Digital Network); IS-IS (Intermediate System to Intermediate System); MGWC-FE (Media Gateway Control Function FE); MLM-FE (Mobile Location Management FE); MMCF (Mobility Management Control Function); MRB-FE (Media Resource Broker FE); MRC-FE (Media Resource Control FE); NACF (Network Attachment and Control Functions); MSCML (Media Server Control Markup Language); NAC-FE (Network Access Configuration FE); NGN (Next Generation Network); NID-FE (Network Information Distribution FE); NIR-FE (Network Information Repository FE); NSI-FE (Network Signaling Interworking FE); OSPF (Open Shortest Path First); P-CSC-FE (Proxy Call Session Control FE); PD-FE (Policy Decision FE); PE-FE (Policy Enforcement FE); PSTN (Public Switched Telephone Network); RACF (Resource and Admission Control Function); RCP (Resource Control Protocol); RIP (Routing Information Protocol); RSVP-TE (Resource Reservation Protocol-Traffic Engineering); SA&A-FE (Service Authentication and Authorization FE); S-CSC-FE (Serving Call Session Control FE); SIGTRAN (Signaling Transport); SIP (Session Initiation Protocol); SL-FE (Subscription Locator FE); SNMP (Simple Network Management Protocol); SOAP (Simple Object Access Protocol); SUP-FE (Service User Profile FE); TAA-FE (Transport Authentication and Authorization FE); TLM-FE (Transport Location Management FE); TRE-FE (Transport Resource Enforcement FE); TRC-FE (Transport Resource Control FE); TUP-FE (Terminal User Profile FE); USI-FE (User Signaling Interworking FE); XCAP (XML Configuration Access Protocol); XML (eXtensible Markup Language); WIN (Wireless Intelligent Network).