Why Mobile TV Does Not Use IPTV
Mobile phone TV can be watched over a smart or 3G smartphone, such as the LG Vu or perhaps Samsung SCH u620 cell phone. Both AT&T Wireless along with Verizon Wireless offer portable iptv services. For Verizon, it is VCAST TV and then for AT&T, it is AT&T Cell phone TV. Both AT&T in addition to Verizon Mobile TV make use of MediaFLO technologies from Qualcomm to broadcast the VHF (719 MHz Center frequency) digital TV signals for the mobile phones. Mobile TV provider from different carrier package different set of TV programmes in its broadcast (in the number of 10 to 10 TV channels in a simple package). Mobile TV support does not use the mobile phone networking to transmit the TV alerts. Instead, it uses a distinct network to distribute, monitor and broadcast the TV impulses to the mobile phones. It only makes use of the mobile phone network to offer interactivity and user acceptance with the TV service provider. Considering that the 3G mobile phone network coming from AT&T and Verizon tend to be capable to carry IP targeted traffic, it seems to be obvious the simplest implementation for mobile phone TV is using IPTV. An illustration is AT&T already making use of IPTV in its U-verse services (internet, phone and TV). To understand why mobile TELEVISION SET does not use IPTV, the actual unicast nature of the cell phone network needs to be explained. The existing 3G (UMTS, EVDO) cellphone network are designed to carry unicast traffic only, i. at the. point to point connection should be establish between the user as well as the Media server in order for the particular network to deliver the TV in order to the mobile phone. Since TELLY is a broadcast service, i actually. e. a point to multipoint connection is required for cell phone TV service. To put into action point to multipoint connection, typically the mobile phone network needs to create an IP connection involving the Media server and each cellular user receiving the broadcast together. These many connections may easily overrun the capacity in the mobile phone network and obstructs other voice and data traffic that should use the network. For portable TV to use IPTV, often the IP multicast feature ought to be implemented on the mobile phone multilevel. Multicasting is the technique of sending a single video signal all together to multiple end users. Just about all viewers receive the same sign at the same time but there are simply no separate streams (connections) for every single recipient. IP multicast will be widely used in the delivery regarding broadcast TV services above IP networks. It substantially reduces the amount of bandwidth needed to transmit high quality IPTV articles across a network. It is because only a single copy of each and every video stream needs to be provided for a router, which in turn really makes a copy of that stream for that
requesting devices. Not only will multicast reduce the bandwidth needs of the network but the cu power of the Media server can be kept relatively low as it only transmits one replicate of an IPTV stream at any given time.