IEC 62298-2:2005 PDF

Overview

IEC 62298-2:2005 - TeleWeb application, Part 2: Delivery methods defines the transmission layer for TeleWeb services. TeleWeb delivers Web-style content to TV-based decoders and the living-room environment. This part specifies how TeleWeb data is carried over broadcast systems - in particular VBI (Teletext) and DVB (MPEG-2 Transport Stream) - and describes delivery profiles, transport protocols and signalling needed so decoders (TVs, set‑top boxes, portable decoders and PCs) can reliably receive and present TeleWeb content.

Key Topics

• Delivery profiles - Defines OSI layers 1–4 mappings for common delivery methods including:
  • TeleWeb via Teletext packets in VBI lines
  • TeleWeb via PES packets in MPEG‑2 TS
  • TeleWeb via DSM‑CC sections in MPEG‑2 TS
• Transport layer protocols - Detailed use of DSM‑CC data carousel for broadcasting files/modules, and the interaction channel for two‑way or signalling traffic.
• DSM‑CC transmission over Teletext - How carousel components are encapsulated in Teletext Independent Data Lines (IDL) and Teletext packet formats referenced to ETSI Teletext specs.
• DVB signalling and transport - Signalling TeleWeb services in DVB tables (Program Map Table PMT and Service Description Table SDT), service detection, multiple service handling and transport via PES or DSM‑CC sections.
• Operational elements - Message sequencing, descriptors, download messages (DDB/DII/DSI concepts), error checking and addressing as applicable to data broadcast.
• Normative references - Interoperability with ISO/IEC 13818 (MPEG‑2, DSM‑CC), ETSI Teletext and DVB specifications.

Applications

• Delivering interactive, HTML‑like or superteletext content to television sets and low‑cost decoders.
• Broadcasting program‑related data (enhanced EPGs, rich graphics, program‑linked information) without requiring Internet connectivity.
• Multiplexing data services alongside traditional audio/video in terrestrial, cable or satellite DVB deployments.
• Useful for broadcasters, middleware vendors, set‑top box and TV manufacturers, system integrators and content/service providers building broadcast‑centric interactive services.

Who Should Use This Standard

• Broadcast engineers implementing TeleWeb or similar data services
• Decoder and middleware designers implementing Teletext/DSM‑CC reception
• Service operators planning DVB/VBI data channels and signalling
• Standards and compliance teams ensuring interoperability with MPEG‑2/DSM‑CC and ETSI Teletext/DVB profiles

Related Standards

• IEC 62298-1: TeleWeb Part 1 - General description
• IEC 62298-3 & -4: Superteletext and Hyperteletext profiles
• ISO/IEC 13818-1, ISO/IEC 13818-6 (MPEG‑2 / DSM‑CC)
• ETSI EN 300 706, EN 300 708 (Teletext), EN 300 744, EN 301 192 (DVB)

Keywords: IEC 62298-2:2005, TeleWeb, delivery methods, transmission layer, VBI, Teletext, DVB, MPEG‑2 TS, DSM‑CC data carousel, PES, PMT, SDT, broadcast data services.