Multicast-broadcast single-frequency network: Difference between revisions

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{{multiple issues|notability=September 2011|technical=September 2011|unreliable sources=September 2011|refimprove = September 2011}}

'''Multicast-broadcast single-frequency network''' ('''MBSFN''') is a [[Channel (communications)|communication channel]] defined in the [[4G|fourth-generation cellular networking standard]] called [[3GPP Long Term Evolution|Long Term Evolution (LTE)]]. ItThe transmission mode is intended as a further improvement of the efficiency of the [[MBMS|enhanced Multimedia Broadcast Multicast Service]] (eMBMS) service, which can deliver services such as [[mobile TV]] using the LTE infrastructure, and is expected to [[MBMS#Competing_technologies|compete]] with dedicated mobile/handheld TV broadcast systems such as [[DVB-H]] and [[DVB-SH]].<ref>{{cite web|title=Long Term Evolution (LTE): A Technical Overview|url=http://www.motorola.com/web/Business/Solutions/Industry%20Solutions/Service%20Providers/Wireless%20Operators/LTE/_Document/Static%20Files/6834_MotDoc_New.pdf|publisher=Motorola Technical White Paper|page=10}}</ref><ref name=Turner>{{cite web|last=Turner|first=Lorraine|title=3G evolution to rival DVB-H, WiMAX - Analysys|url=http://www.totaltele.com/view.aspx?ID=363424|publisher=Total Telecom|accessdate=9 February 2006}}</ref> This enables [[network operator]]s to offer mobile TV without the need for additional expensive [[licensed spectrum]] and without requiring new infrastructure and end-user devices.

<ref name=Fitchard0>{{cite web|last=Fitchard|first=Kevin|title=Why Qualcomm thinks LTE-broadcast will work where FLO TV failed|url=http://gigaom.com/2013/04/09/why-qualcomm-thinks-lte-broadcast-will-work-where-flo-tv-failed/|accessdate=9 April 2013}}</ref>

The MBSFN transmission mode is based on the principles of [[Dynamic single frequency networks]] (DSFN), meaning that it dynamically forms groups of adjacent base stations that sends the same signal simultaneously on the same frequency sub-carriers, when there are mobile TV viewers of the same TV program content in the adjacent cells.

==Technical details==