Convergence of IT Technologies and High-Tech Communications in Future Networks

Състояние: Отлично
Издателство: НБУ
Град на издаване: София
Наличност: singular
Корици: Меки

C O N T E N T S

PART I. NEXT GENERATION NETWORKS (NxGN) . . 8 Module I. 1. ARCHITECTURAL CONCEPTS ... 8 1. 1. INTRODUCTION ... 8 1.1. 1. Market drivers ... 10 1.1. 2. The evolution of the industry ... 11 1.1. 3. Business processes ... 12 1.1. 4. Changing Scenario in the telecommunications market 13 1.2. ARCHITECTURAL CONCEPTS ... 14 1.2. 1. Telecommunications network development alternatives 14 1.2. 2. NxGN principles ... 17 1.2. 3. Architectural concepts... 18 1.2. 4. A summary definitions of NxGN ... 19 1.2. 5. Advantages of layered (NxGN) structure versus flat (existing network) structure (Flat versus Layered network architecture)... 20 1.3. ACCESS PLANE ... 23 1.4. TRANSPORT PLANE ... 35 1.5. CONTROL AND APPLICATION LAYERS ... 40 1.6. MANAGEMENT PLANE ... 44 1.7. NxGN CALL ESTABLISHMENT ... 45

Module I. 2. MAIN CHARACTERISTICS AND FEATURES OF NxGN 50 2.1. SIGNALING PROTOCOLS IN NxGN ... 50 2.1. 1. Signalling protocols for call set-up ... 52 2.1. 1.1. Common Channel Signalling System No 7 (SS7) 52 2.1. 1.2. Bearer Independent Call Control (BICC) protocol 56 2.1. 1.3. ITU Protocol H. 323 ... 56 2.1. 1.4. ITU Protocol SIP (fig. 2.4) ... 59 2.1. 2. Signaling protocols for gateway control ... 60 2.1. 3. Protocols for the transport of signaling ... 62 2.1. 4. Protocols for payload (users’ information) transfer ... 62 2.1. 4.1. TCP/IP (Transport Control Protocol / Internet Protocol) (www. protocols, com) 62 2.1. 4.2. RTP (Real-time Transport Protocol) ... 63 2.1. 4.3. X. 25 and X75 ... 63 2.1. 4.4. MPLS (MuIti Protocol Label Switching) ... 64 2.1. 5. Inter-working between signalling protocols ... 65 2.2. BILLING AND ACCOUNTING ... 66 2.3. OPERATOR SERVICES (CALL CENTRES) ... 68 2.4. NETWORK SECURITY ... 69 2.5. NETWORK RELIABILITY ... 70 2.6. QUALITY OF SERVICE IN NGN ... 72 2.7. FUTURE TELECOMMUNICATION TRAFFIC ... 76 2.8. PLANNING MULTI-SERVICE NETWORKS ... 80 2.9. STANDARDIZATION AND INTEROPERABILITY IN NxGN 82

Module I. 3. NxGN TECHNOLOGY SOLUTIONS ... 85 3.1. SOFTSWITCHES ... 85 3.2. MEDIA GATEWAY SOLUTIONS ... 87 3.3. TRANSPORT TECHNOLOGIES ... 89 3.3. 1. Main structure and characteristics of the Transport layer 89 3.3. 2. Multiplexing technologies - Synchronous Digital Hierarchy SDH 90 3.3. 3. Routing/Switching technologies ... 91 3.4. NETWORK MANAGEMENT TECHNOLOGIES ... 94 3.5. ACCESS TECHNOLOGY SOLUTIONS ... 96

PART II. NEW GENERATION NETWORKS - THE FULL CONVERGENCE OF IT TECHNOLOGIES AND HIGH-TECH COMMUNICATION NETWORKS 102 Module II. 1. GENERAL ASPECTS OF NwGN ... 102 INTRODUCTION ... 102 FURTHER STEPS OF NETWORK DEVELOPMENT BEYOND NxGN - NEW GENERATION NETWORK (NwGN) ... 102 1.1. GENERAL ASPECTS OF NwGN ... 105 1.1. 1. The Vision ... 105 1.1. 2. Concept of NwGN ... 106 1.2. NwGN POSSIBILITIES ... 107 1.3. NwGN APPLICATIONS ... 110 1.4. NwGN ADVANCES ... 112 1.5. WHAT IS NwGN AS A PROJECT? ... 115

Module II. 2. SOCIETAL CHALLENGES AND TECHNOLOGICAL REQUIREMENTS OF THE NwGN ... 116 2.1. NwGN REQUIREMENTS ON TECHNOLOGY AND MANAGEMENT 117 2.1. 1. General requirements ... 117 2.1. 2. NwGN requirements on technology... 118 2.1. 3. NwGN requirements on management ... 121 2.1. 4. Societal Challenges and Requirements for the New Generation Network 124

Module II. 3. NЕW GENERATION NETWORK KEY DEVELOPMENT AREAS 135 3.1. TERMINAL AREA ... 136 3.2. ACCESS NETWORK AREA ... 139 3.3. Core Transport Network Area ... 141 3.4. Service Creation Area ... 141 3.5. NETWORK CONTROL AND MANAGEMENT AREA 142 3.6. SERVICE CONTROL AND MANAGEMENT AREA 143

REFERENCES ... 148