IPTV - What's All the Publicity About?
Cellular TV may be seen on an intelligent or 3G cellular phone, like the LG Vu or Samsung SCH u620 wise phone. Both AT&T Instant and Verizon Instant offer cellular TV services. For Verizon, it is VCAST TV and for AT&T, it's AT&T Cellular TV. Equally AT&T and Verizon Mobile TV use MediaFLO technologies from Qualcomm to broadcast the VHF (719 MHz Center frequency) digital TV signs to the cellular phones.
Mobile TV support from various provider deal various set of TV programs in its transmitted (in the product range of 10 to 12 TV programs in a fundamental package).Mobile IPTV Subscription
service doesn't use the cell phone system to transmit the TV signals. Alternatively, it runs on the split system to deliver, broadcast and broadcast the TV signals to the portable phones.
It only uses the cell phone system to provide interactivity and person authorization with the TV support provider. Because the 3G mobile phone system from AT&T and Verizon are generally capable to hold IP traffic, it is apparently apparent that the simplest implementation for cellular TV is applying IPTV. An example is AT&T already using IPTV in its U-verse service (internet, phone and TV).
To understand just why portable TV does not use IPTV, the unicast character of the cell phone system needs to be explained. The current 3G (UMTS, EVDO) cellular phone system are created to carry unicast traffic just, i.e. point out level relationship needs to be establish between the consumer and the Press machine to ensure that the network to provide the TV traffic to the portable phone.
Because TV is a transmitted service, i.e. an indicate multipoint relationship is necessary for mobile TV service. To implement point out multipoint connection, the mobile phone system needs to create an IP connection involving the Press server and each cellular person obtaining the transmitted simultaneously. These many connections can simply overrun the capacity of the mobile phone system and blocks other style and knowledge traffic that really needs to utilize the network.