ETSI

• ETSI
  • ETSI=European Telecommunications Standards Institute=欧洲电信标准协会
  • 是什么：一个欧洲的技术组织/机构
  • 全称：ETSI Technical Committee=ETSI技术委员会
  • 总部：法国
  • 目标：致力于欧盟范围内的ICT方面标准化
    • 主要负责标准制定
      • 主要涉及3方面=领域
        • 电信 Telecommunications
        • 信息技术 Information Technology
        • 广播 Broadcasting
  • 成员
    • 来自 59国家
      • 的653个成员
  • 维度
    • 3个维度
      • 

NGN

• NGN
  • NGN=Next Generation Networking=下一代网络
  • 范畴：ETSI的NGN
  • 愿景=目标
    • 基于IP的网络的内部和网络之间均可互操作
      • Inter-operable, Inter-domain All IP-based network
    • 宽带接入
      • Broadband access
    • 多媒体能力
      • Multi-media capabilities
    • 支持多种服务的移动和漫游
      • Support mobility & nomadicity Multiple services
    • 业务模型无关
      • Business Model Agnostic
  • 服务范围
    • 个人间通讯 Person-to-Person
      • 会话 Conversational
        • 概述
          • 
        • 包含
          • 语音电话Voice call
            • 视频电话Video call
              • 聊天 Chat
            • 多媒体会话Multimedia Sessions
      • 消息 Messaging
        • 概述
          • 
        • 包含
          • 邮件eMail
          • 短信SMS
            • 增强短信EMS
              • 多媒体消息MMS
                • 即时通讯和状态呈现 IM & Presence
    • 内容点播 Content-on-demand
      • 概述
        • 
      • 包含
        • 浏览Browsing
          • 下载Download
            • 流媒体传输 Streaming
              • 推送Push
        • 广播Broadcast
  • 实现多媒体=富媒体功能
    • 
  • 主要特点
    • "plugging in" new Subsystem
    • Separate Transport and Service Layers
    • Open access to services from multiple operators
    • Interoperability and flexible innovative services
  • 核心组件=主要内容：包含各个子系统Subsystem
    • IP connectivity subsystems
      • NASS=Network Attachment Subsystem
        • 主要功能
          • Access authentication
          • NW configuration e.g. DHCP
          • Location function
      • RACS=Resource and Admission Control Subsystem
        • 主要功能
        • Resource admission control in Access Network
    • Service-oriented subsystems
      • IMS = Core IMS
        • 概述
          • Based on 3GPP IMS core
        • 主要功能
          • 3GPP IMS (R6) supporting multimedia services and adapted to accommodate xDSL-based access, and PSTN/ISDN Simulation & Emulation
      • PES = PSTN/ISDN Emulation Subsystem=PSTN Emulation
        • 概述
          • CS phones: emulate legacy CS core network
        • 主要功能
          • A PSTN/ISDN Emulation Subsystem specifically tailored to allow TDM equipment replacement, while keeping legacy terminals unchanged
  • 接入技术Access Technologies
    • 主流网络
      • Mobile
        • 3GPP standardization
      • DSL=Digital Subscriber Line
      • Wired & Wireless LAN
      • Cable
    • 旧网络=遗留网络 Legacy Networks
      • PSTN/ISDN emulation
        • Provides PSTN/ISDN service capabilities and interfaces using adaptation to an IP infrastructure
      • PSTN/ISDN simulation
        • Provides PSTN/ISDN-like service capabilities using session control over IP interfaces and infrastructure
  • 版本和内容
    • TISPAN R1= Release 1
      • 发布时间：2005年12月
      • 内容
        • 概述
          • Adopts the 3GPP IMS standard for SIP-based applications, and adds further functional blocks and subsystems to enable fixed access to IMS and to handle non-SIP applications
        • 具体包含
          • Service capabilities
            • Real time conversational services (Voice, Video calls/sessions)
            • Messaging (Instant Messaging, MMS) and Presence
            • PSTN/ISDN emulation and simulation
          • Network Architecture
            • 3GPP IMS (R6) core sub-system reused as basis for SIP-based services control
            • xDSL access a primary focus
            • Initial network-edge QoS controls
    • TISPAN R2
      • 时间：2008年4月
      • 内容：
        • TISPAN and 3GPP agreed on Common IMS platform
          • 3GPP IMS (R7)
        • Introduces new IMS enabled services and adds key elements
          • Supplementary services (see 3GPP)
          • IPTV (both IMS and non-IMS based)
          • Home Networking
          • Corporate networks and the NGN
            • Additional support for Mobility & Nomadicity
    • TISPAN R3
      • 内容
        • Improvement of several aspects introduced in the previous Releases
          • IPTV service evolution
          • IP Network to Network interconnection
          • Corporate Network interconnection
          • Home Network interconnection
          • QoS and Security
          • CDN
          • P2P Study