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NTIA Warns WAC of 'Far-Reaching Consequences' From IMT in Fixed Wireless Frequencies

The FCC's 2023 World Radiocommunication Conference Advisory Committee (WAC) voted Tuesday to adopt and forward a set of working group recommendations to the agency. On the WRC-23 agenda item about an aeronautical mobile satellite service allocation in the 117-137 MHz…

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band, WAC voted to adopt an updated preliminary view that notes some existing aeronautical use that new allocations must protect. It also approved a draft proposal on allocation of 6425-7025 MHz and 7025-7125 MHz to international mobile telecommunications. Citing a resolution asking the ITU Radiocommunication Sector to study the use of IMT systems for fixed wireless broadband in the frequency bands allocated to fixed service on a primary basis, the NTIA in a letter to the FCC said the ITU-R already has a route for mobile technologies to provide flexed wireless access, and proponents of IMT use for fixed wireless access can revise existing recommendations that were done years ago rather than seek further action at WRC-27. A WRC-27 agenda item "could have far-reaching consequences," NTIA said. It said the U.S. backs consideration of new allocations to the non-safety aeronautical mobile applications service at 15.4-15.7 and 22-22.21 GHz, and protection levels used for radio astronomy service should project it from adjacent interference. WAC's recommendations will go out for public notice, then be reconciled with NTIA recommendations for creation of U.S. inputs going into the next Inter-American Telecommunication Commission meeting at the end of April, said Dante Ibarra, FCC designated federal officer to WAC.