Both AT&T Wireless and Verizon Wireless supply mobile TELEVISION services. For Verizon, it is VCAST TV and for AT&T, it is AT&T Mobile TV. Both AT&T and also Verizon Mobile TELEVISION usage MediaFLO innovations from Qualcomm to broadcast the VHF (719 MHz Facility regularity) electronic TV signals to the smart phones. Mobile TV solution from different provider bundle different collection of TELEVISION networks in its program (in the range of 10 to 12 TELEVISION channels in a basic plan).
Mobile TV solution does not make use of the smart phone network to send the TV signals. Instead, it utilizes a separate network to disperse, transfer and also transmit the TV signals to the smart phones. It only utilizes the mobile phone network to supply interactivity and individual permission with the TELEVISION service provider. Since the 3G smart phone network from AT&T as well as Verizon are both qualified to carry IP website traffic, it appears to be apparent that the most basic application for mobile TELEVISION is making use of IPTV. An example is AT&T currently using IPTV in its U-verse solution (net, phone and also TELEVISION).
To understand why mobile TELEVISION does not use IPTV, the unicast nature of the smart phone network needs to be discussed. The current 3G (UMTS, EVDO) smart phone network are created to bring unicast web traffic just, i.e. indicate point connection requires to be establish between the user as well as the Media server in order for the network to supply the TV website traffic to the smart phone. Since TELEVISION is a broadcast solution, i.e. an indicate multipoint connection is needed for mobile TELEVISION service. To execute indicate multipoint link, the smart phone network needs to set up an IP connection in between the Media server as well as each mobile user getting the broadcast simultaneously. These several connections will quickly overwhelm the capacity of the smart phone network and also obstructs various other voice as well as data traffic that needs to utilize the network.
For mobile TV to make use of IPTV, the IP multicast attribute requires to be carried out on the cellphone network. Multicasting is the technique of transmitting a single video signal simultaneously to multiple end customers. All viewers obtain the very same signal at the same time yet there are no separate streams (links) for each and every recipient. IP multicast is commonly utilized in the shipment of broadcast TELEVISION services over IP networks. It considerably reduces the amount of transmission capacity needed to transmit excellent quality IPTV content throughout a network. This is since only a solitary duplicate of every video stream requires to cccam server be sent out to a router, which in turn makes a copy of that stream for the asking for devices. Not only does multicast minimize the data transfer requirements of the network but the handling power of the Media web server can additionally be kept fairly reduced since it just transmits one copy of an IPTV stream at a time.
Although the current 3G mobile network from AT&T and Verizon does not have IP multicast, however, the following 3G mobile network upgrade from both service providers might consist of the IP multicast function. For AT&T Wireless, the following network upgrade will certainly be HSPA (High Speed Package Accessibility) which sustains the MBMS (Multimedia Program Multicast Services) function. For Verizon Wireless, the next upgrade will be EVDO Rev A which sustains the BCMCS (Broadcast and also Multicast Solutions) feature. Hence, the future mobile TV solution from both AT&T Wireless and also Verizon Wireless may use IPTV implementation.