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
        • etsi_three_dimension

NGN

  • NGN
    • NGN=Next Generation Networking=下一代网络
    • 范畴:ETSINGN
    • 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
            • ngn_p2p_conversation
          • 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
            • ngn_p2p_messaging
          • 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
          • ngn_content_on_demand
        • 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
      • ngn_implement_multimedia
    • 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

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