General Requeriments

Mobile TV is not like conventional TV, there are some constraints that differentiate them, in first place the technical features of a mobile device are different battery consumption, screen size, signal reception, etc.
Mobile devices are battery powered, so the TV system must take that in consideration to increase battery usage duration. Other constraints like man-made and natural noise affects the TV signal emission that diminish the reception quality, users are already compromising on their screen size, so the system shall mitigate “noise” effects on the receiving capabilities. So are required a set of special requirements for the compression and transmission parameters of the TV signal. Also the system must secure the distribution and consumption of Mobile TV. (Faria, Henriksson, Stare, & Talmola, 2006)

Additionally, the system coverage should cope with two scenarios indoor & outdoor.

Other difference is the way users consume the TV service, a mobile user will watch TV occasionally and during short time, that affects the TV content that operator should provide. The user probably we will use the service when is moving (mobile user), which is a technical difficult constraint to take into account. Most of the user expects a system that allows and easy operation (like traditional TV). (Carlsson & Walden, 2007)

The following are the requirements that need to be met by a service provider networks (Kumar, 2007):
- The first requirement is to have protocols standardized and agreed on video streaming.
- The networks needs standards for encoding of video and audio defined for video streaming.
- The networks must have enough data rate available for uninterrupted video transferences.

The system should be usable in different parts of the world and should offer the flexibility to use different transmission bands and channels. So the ideal system must be compatible (interoperable) with different network and systems implementations, so must be accepted by electronics manufacturer, mobile operator, TV broadcaster, and standard organizations (ITU, ETSI, etc.). The system require a precise understanding of the technological constraints and associated costs, the needs and expectations of customers, and needs to flexible to meet new requirements and business models.

To sump up, to deliver and recieve Mobile TV is made possible by standards and technologies that define audio and video coding, transmission, broadcast, and reception.

References:

- Carlsson, C., & Walden, P. (2007). IEEE xplore. Retrieved 5 2009, 20, from Mobile TV - To Live or Die by Content: http://ieeexplore.ieee.org/Xplore/login.jsp?url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F4076361%2F4076362%2F04076476.pdf%3Farnumber%3D4076476&authDecision=-203

- Faria, G., Henriksson, J., Stare, E., & Talmola, P. (2006). IEEE xplore. Retrieved 05 2009, 22, from DVB-H: Digital Broadcast Services to Handheld Devices: http://ieeexplore.ieee.org/Xplore/login.jsp?url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F11%2F4114770%2F04114803.pdf&authDecision=-203

-Kumar, A. (2007). Mobile TV: DVB-H, DMB, 3G Systems and Rich Media Applications . Fucal Press Media Technoly Professional.