The DVB-H specification for broadcasting to battery-powered handheld devices, and a related set of specifications for IP datacast (DVB-IPDC), are the key enabling technologies for mobile television.

DVB-H is largely based on the successful DVB-T specification for digital terrestrial television, adding to it a number of features designed to take account of the limited battery life of small handheld devices, and the particular environments in which such receivers must operate. The use of a technique called time-slicing, where bursts of data are received periodically, allows the receiver to power off when it is inactive leading to significant power savings. DVB-H also employs additional forward error correction to further improve kamagra sildenafil the already excellent mobile performance of DVB-T.

The specifications for IP Datacast are essential to the convergence of broadcast networks and mobile telecommunications networks that will almost certainly be central to the majority of commercial launches of DVB-H services. The specifications cover the overall system architecture, electronic service guide (ESG), content delivery protocols, and the PSI/SI that will make the establishment of convergent networks possible.

TECHNICAL SPECIFICATIONS

DVB-H - Transmission System for Handheld Terminals - EN 302 304

Implementation Guidelines for DVB-H Services - TR 102 377

DVB-H Validation Task Force Report - TR 102 401

IP Datacast over DVB-H

The following specifications have been sent to ETSI for formal standardisation.

A079r1 - IP Datacast over DVB-H: PSI/SI

A096 - IP Datacast over DVB-H: Set of Specifications for Phase 1

A097 - IP Datacast over DVB-H: Use Cases and Services

A098 - IP Datacast over DVB-H: Architecture

A099 - IP Datacast over DVB-H: Electronic Service Guide (ESG)

A100 - IP Datacast over DVB-H: Service Purchase and Protection (SPP)

A101- IP Datacast over DVB-H: Content Delivery Protocols (CDP)

Video and Audio Coding for DVB IP Applications

A084r1 - Specification for the use of Video and Audio Coding in DVB services delivered directly over IP Protocols

OTHER USEFUL RESOURCES

PDF - DigiTAG DVB-H Handbook DigiTAG DVB-H Handbook

This useful handbook, compiled by DigiTAG in the first quarter of 2005, seeks to address the key commercial, technical and regulatory issues affecting broadcast television services to a handheld devices using the DVB-H standard

DVB-H - Digital TV in the Hands

This technical paper was written by Gerard Faria, Executive Director of TeamCast. It provides an in-depth explanation of the technology behind DVB-H. Gerard was the editor of the DVB-H physical layer specification and also chaired the DVB-H Validation Task Force.

 

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