SDV Presentation

Introduction to SDV Owen Lin April 18, 2007 Some information obtained from: Scientific Atlanta – SDV Overview BigBand Whitepapers –The Statistics of SWB

What Is SDV and What Does It Do? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Why All the Rage? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Example of Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Additional Research ,[object Object],[object Object],[object Object],[object Object]

Kagan Research ,[object Object]

Why Switched Digital Video? Bandwidth ,[object Object],[object Object],[object Object],Unused Capacity Switched Digital Video Switched Channels Everyone could get their own special channels: increased appeal of overall package to ALL subscribers Broadcast Channels Audience Broadcast Channels Current Analog & Digital Broadcast Approach Only the most popular channels are offered due to capacity constraints “ The Long Tail”

Why Switched Digital Video? Summary Traditional Broadcast Switched Digital Video 200 Programs Offered 20 QAMs HFC Bandwidth Required 300 Programs Offered 30 QAMs HFC Bandwidth Required 200 Programs Offered 6-8 QAMs HFC Bandwidth Required 300+ Programs Offered n QAMs HFC Bandwidth Required Bandwidth scales as number of offered channels Immediate bandwidth savings HFC bandwidth scales based on viewership HFC bandwidth required is independent of number of offered channels MSOs can save bandwidth by delivering programs based on viewership

Section: SDV Elements DNCS SDV Manager SDV Server Mini Carousel DCM NetCrypt Switches & Routers QAMs STB Client

SDV Elements Management Network – Key Players Management HFC Network Video Content IP Network Control IP Network QPSK Content Sources DNCS DCM SDV Server GQAM SDV Client (on STB) Management & Provisioning Server Interactive Session Request Mini Carousel Channel Change Message Session Binding Shell Session Setup IGMP Join Out-of-Band Channel Video Sources Groomed Video Encrypted Multicast Video In-Band Channel NetCrypt

SDV Elements DNCS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],DNCS

SDV Elements SDV Server ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],SDV Server

SDV Elements Mini Carousel ,[object Object],[object Object],[object Object],[object Object],[object Object]

SDV Elements Content Delivery Network – Key Players Content Delivery HFC Network Video Content IP Network Control IP Network QPSK Content Sources DNCS DCM SDV Server GQAM SDV Client (on STB) Management & Provisioning Server Interactive Session Request Mini Carousel Channel Change Message Session Binding Shell Session Setup IGMP Join Out-of-Band Channel Video Sources Groomed Video Encrypted Multicast Video In-Band Channel NetCrypt

SDV Elements DCM / Staging Processor ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],DCM / Staging Processor

SDV Elements NetCrypt ™ Bulk Encryptor ,[object Object],[object Object],[object Object],[object Object],Bulk Encryptor

SDV Elements Switches & Routers ,[object Object],Switches & Routers

SDV Elements QAM Modulators (GQAMs / Edge QAMs) ,[object Object],[object Object],GQAM

SDV Elements STB Client ,[object Object],[object Object],[object Object],[object Object],Settop with SDV Client

Section: Setup and Signal Flow SDV Components Provisioning and Channel Change Major SDV Channel-Change Scenarios

Setup Flow - SDV Components HFC Network Video Content IP Network Control IP Network QPSK End-to-End System Solution and Integration 6.) GQAM: Session-based modulator with IP/GbE input, Issues IGMP message to “join” multicast group for SDV, and may also handle unicast VOD streams 1.) DCM / Staging Processor: Aggregates multiple MPEG sources, Clamps VBR programs to CBR, Converts MPTS to SPTS, Encapsulates MPEG into IP over GbE output, Addresses unicast IP for encrypted programs and multicast IP for unencrypted, and Performs DPI for ad insertion 2.) DNCS with SDV licenses 4.) NetCrypt Bulk Encryptor: IP network-attached encryption, Up to 4 Gbps, and Addresses multicast IP for distribution DNCS SDV Server GQAM SDV Client (on STB) Content Sources DCM 8.) SDV Client: Provides customer interface for switched services, Stores last known Mini-Carousel data, and Registers all user activity with SDV Server 5.) SDV Server: Intel Server running Linux OS, Requests bandwidth and shell sessions from the SRM Manager, Binds shell sessions to multicast content, Distributes Mini-Carousel for topology, client configuration, and updated tuning information and Processes channel change requests 5) SDV Mgr: User interface in DNCS for control and configuration of the SDV Servers and service group settings ,[object Object],7.) Switch/Routers: Standards-based with IGMPv3 SSM, Switches streams to appropriate GQAMs, and Maintains IGMP membership tables NetCrypt

Signal Flow Major SDV Channel-Change Scenarios SDBProgramSelectConfirm SDBProgramSelectRequest DNCS “ SRM” Settop QAM SDV Server ServerInteractiveSessionRequests ServerInteractiveSessionConfirms QAM Shell Session Setups SDBProgramSelect Request/Confirm Case 1. Program already to Service Group and in Mini-carousel Case 2. Program already to QAM chassis for another Service Group Case 3. Bandwidth available on QAM that is not member of that multicast group Router SDBProgramSelectConfirm SDBProgramSelectRequest Bind to multicast w/ bit-rate IGMPv3 “Join” Case 4. No bandwidth available on current QAMs. SDV server must request additional bandwidth from SRM SDBProgramSelectRequest IGMPv3 “Join” SDBProgramSelectConfirm Bind to multicast w/ bit-rate Bind to multicast w/ bit-rate

SDV Presentation

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