Satellite Critics Cite Flaws in AT&T/EchoStar Spectrum Sharing Plan
An AT&T/EchoStar proposal for satellite/wireless sharing of the 28, 37 and 39 GHz bands might work for some satellite network operators, but it might preclude launches of future satellite networks needing broader access to those bands for increased broadband capacity…
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and throughput, Boeing said in an FCC filing Tuesday in docket 14-177. The satellite industry needs more time for discussions with terrestrial 5G backers about spectrum sharing, since such talks "will identify innovative and effective measures to enable real-time sharing," Boeing said. The joint AT&T/EchoStar proposal (see 1604070059) "could be improved," Boeing said, citing its setting aside densely populated urban cores for 5G services, "limiting satellite access to the band to individually licensed earth stations, often on a secondary unprotected basis." The proposal also is sketchy on how co-primary sharing would be accomplished, Boeing said. The proposal "provides only a single viewpoint on the potential use of the 28 and 37/39 GHz bands, and does not represent a consensus of the satellite industry," Boeing said, saying the FCC should allow time for satellite industry technical efforts "to reach a resolution." ViaSat, in a filing posted Wednesday in docket 10-112, also was critical of the joint proposal, saying it didn't have satellite industry consensus. It also "only partially addresses one aspect of the sharing environment under consideration, was offered before technical details were provided by the 5G industry, has critical details to be resolved, and in fact appears to meet the needs of only one or two satellite operators," ViaSat said. It said EchoStar has a conflict because the millimeter wave frequency band licenses it holds through Alta Wireless "will become much more valuable and could be a key in blocking competitors from accessing spectrum." In a statement Wednesday, EchoStar said that “as noted in our joint filing, we recognize there are still open issues to be resolved and we look forward to the input of other satellite operators and the terrestrial industry.” AT&T didn't comment.