IPTV Smart

 Portable TV could be viewed on a smart or 3G cellular phone, like the LG Vu or Samsung SCH u620 intelligent phone. Both AT&T Wireless and Verizon Wireless provide portable TV services. For Verizon, it is VCAST TV and for AT&T, it is AT&T Portable TV. Both AT&T and Verizon Portable TV use MediaFLO systems from Qualcomm to transmitted the VHF (719 MHz Center frequency) electronic TV signs to the portable phones. Portable TV company from various carrier pack various pair of TV programs in their transmitted (in the number of 10 to 12 TV programs in a basic package).


Portable TV company does not utilize the cellular phone system to send the TV signals. Alternatively, it uses a split system to deliver, send and transmitted the TV signs to the portable phones. It just uses the cellular phone system to provide interactivity and consumer authorization with the TV company provider. Because the 3G cellular phone IPTV Smart system from AT&T and Verizon are both ready to transport IP traffic, it appears to be clear that the easiest implementation for portable TV is using IPTV. A good example is AT&T previously using IPTV in their U-verse company (internet, phone and TV).


To understand just why portable TV does not use IPTV, the unicast nature of the cellular phone system needs to be explained. The present 3G (UMTS, EVDO) cellular phone system are designed to carry unicast traffic just, i.e. point to position relationship needs to be build between the consumer and the Media host to ensure that the system to deliver the TV traffic to the portable phone. Since TV is just a transmitted company, i.e. a point out multipoint relationship is necessary for portable TV service. To implement point to multipoint relationship, the cellular phone system needs to create an IP relationship between the Media host and each portable consumer receiving the transmitted simultaneously. These several connections can easily overrun the capability of the cellular phone system and blocks different style and information traffic that needs to utilize the network.


For portable TV to utilize IPTV, the IP multicast feature needs to be applied on the cellular phone network. Multicasting may be the technique of transferring an individual movie indicate concurrently to multiple end users. All people receive the exact same indicate at the same time frame but you will find number split channels (connections) for each recipient. IP multicast is widely used in the distribution of transmitted TV solutions around IP networks. It significantly decreases the total amount of bandwidth necessary to send top quality IPTV content across a network. This is because only a single copy of every movie flow needs to be sent to a hub, which often makes a copy of this flow for the requesting devices. Not just does multicast reduce the bandwidth needs of the system but the running energy of the Media host may also be kept somewhat reduced because it just transmits one copy of an IPTV flow at a time.


Though the present 3G portable system from AT&T and Verizon does not need IP multicast, but, the next 3G portable system upgrade from equally companies might include the IP multicast feature. For AT&T Wireless, the next system upgrade is likely to be HSPA (High Pace Package Access) which helps the MBMS (Multimedia Broadcast Multicast Services) feature. For Verizon Wireless, the next upgrade is likely to be EVDO Rev A which helps the BCMCS (Broadcast and Multicast Services) feature. Thus, the near future portable TV company from equally AT&T Wireless and Verizon Wireless might use IPTV implementation.

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