DVB-H systems
The DVB-H (Digital Video Broadcast Handheld) system is a variant of the DVB-T system, especially developed for small portable devices, e.g. cellular phones. The system specification is described in the European norm EN 302 304.
Digital TV in the DVB-H system allows the reception of audio/video content in mobile devices (palmtops, cellular phones) and other multimedia devices.
DVB-H was formally accepted as an ETSI (European Telecommunications Standard Institute) standard in November 2004 and adapted to the existing terrestrial digital TV (DVB-T) standard. The DVB-T technology has been modified to overcome technological limitations connected with powering and increasing the mobile device battery lifetime. DVB-H allowtheto reception TV programs, data transmission and uses cellular phone networks as a return channel for fully interactive services. The users can watch TV when they are mobile and in places where it has not been possible to receive TV so far. Mobile TV has other advantages like interactivity and data transmission.
Depending on configuration and operator's requirements the DVB-H system can consist of the following elements:
The DVB-H system can work in the following frequency ranges:
DVB-H can be served by the same platform serving the DVB-T system.
The European Commission has called on the EU member countries to release frequencies (470-862 MHz) for Mobile TV as soon as possible. Due to technical constraints these bands are considered as the most suitable for mobile multimedia services. Furthermore, The European Commision has begun the process of opening the new frequency range for mobile TV services as a stand-by solution. DVB-H, thanks to the support of the European Commission, can be a valuable asset in the digital mobile TV market.
Digital TV in the DVB-H system allows the reception of audio/video content in mobile devices (palmtops, cellular phones) and other multimedia devices.
DVB-H was formally accepted as an ETSI (European Telecommunications Standard Institute) standard in November 2004 and adapted to the existing terrestrial digital TV (DVB-T) standard. The DVB-T technology has been modified to overcome technological limitations connected with powering and increasing the mobile device battery lifetime. DVB-H allowtheto reception TV programs, data transmission and uses cellular phone networks as a return channel for fully interactive services. The users can watch TV when they are mobile and in places where it has not been possible to receive TV so far. Mobile TV has other advantages like interactivity and data transmission.
Depending on configuration and operator's requirements the DVB-H system can consist of the following elements:
- digital headend compatible with the DVB-H standard
- DVB-H transmitter network
- ESG (Electronic Programm Guide) system
- CAS (Customer Access System)
- content management system
- portable DVB-H terminals (mobile phones)
The DVB-H system can work in the following frequency ranges:
- VHF-III (170-230 MHz or a part of this band)
- UHF-IV/V (470-862 MHz or a part of this band)
- L (1.452-1.492 GHz)
DVB-H can be served by the same platform serving the DVB-T system.
The European Commission has called on the EU member countries to release frequencies (470-862 MHz) for Mobile TV as soon as possible. Due to technical constraints these bands are considered as the most suitable for mobile multimedia services. Furthermore, The European Commision has begun the process of opening the new frequency range for mobile TV services as a stand-by solution. DVB-H, thanks to the support of the European Commission, can be a valuable asset in the digital mobile TV market.
System scheme
