name: MBSFN
full_form: Multimedia Broadcast Single Frequency Network
context: Summary based on the input provided by EBU, Qualcomm Incorporated in RP-220445. Before Rel-17, 5G terrestrial broadcast only supports the same system bandwidths as traditional LTE (1.4, 3, 5, 10, 15, 20MHz). Broadcast UHF spectrum, however, is channelized typically in channels of 6/7/8MHz (depending on the region). The objective of this work item [1] is to introduce support of PMCH bandwidths of 6/7/8MHz in MBMS-dedicated cells to enable deployment of 5G terrestrial broadcast in broadcast UHF spectrum. The detailed operation to enable the above feature is as follows: â¢ The eNB indicates in MIB a system bandwidth of 5MHz (25PRBs) or 3MHz (15PRBs). â¢ In system information, the eNB indicates, per MBSFN area, whether the PMCH in that MBSFN area uses a bandwidth larger than the system bandwidth. The possible values for this bandwidth are 6MHz (30PRBs), 7MHz (35PRBs) and 8MHz (40PRBs). â¢ The PMCH and MBSFN-RS are received with the indicated bandwidth. A figure depicting the operation is
description: Multimedia Broadcast Single Frequency Network (MBSFN) is a network configuration where multiple base stations transmit the same multicast/broadcast content over a single frequency. This improves spectral efficiency and reduces interference. MBSFN is used in 5G terrestrial broadcast deployments within broadcast UHF spectrum.
explanation: The description focuses on how MBSFN configures networks for efficient broadcasting, highlighting its role in managing frequencies and reducing interference. These characteristics directly relate to the definition of a network.
section_title: 14.2.1	New bands and bandwidth allocation for 5G terrestrial broadcast - part 1
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