Wireless Interests Fret Over Space Use of AWS-1 A-Block Spectrum

Don't expand space operations in the 2110-2120 MHz portion of the AWS-1 band, wireless interests urged the FCC this week in docket 13-115 reply comments. The agency in September adopted a Further NPRM proposing changes to the Table of Frequency Allocations addressing the use of spectrum by manned and unmanned spacecraft during missions, and seeking comment on new spectrum allocations in certain bands for communications with cargo and crew capsules. Wireless providers have relied on the 2110-2120 MHz band for their networks, and the proposed expansion of satellite uplinks in the band ignores that it was auctioned and licensed to commercial wireless operators subject only to interference from one federal user at one location in California, CTIA said. Expanded use outside of NASA's Deep Space Network research facility would undermine wireless licensees' "investment-backed expectations in acquiring [licenses] and foundational network deployment," it said. CTIA said minus the protections that come with exclusive use licenses, consumers could face service-quality disruptions and there would be less confidence in the auction and regulatory process. AT&T said its use of the 2110-2120 MHz spectrum is constrained only by the need to accept interference from those high-power NASA transmitters. It said additional restrictions on AWS-1 A-Block licensees’ use of the 2110-2120 MHz portion of the band would undermine the auction process and put new terms on licensees post auction. Such a move would also put AWS-1 A-Block licensees at a competitive disadvantage to other AWS-1 licensees, it said. More nonfederal spectrum allocations for launch activities will help relieve lower S-band congestion, SpaceX said. It urged streamlined coordination in the upper S band as a way of supporting launch and space operations while protecting incumbent flight-testing services. It pushed for looking beyond the S and L bands for spectrum for launch and space operations, including for commercial crewed and uncrewed spacecraft. In a separate filing, SpaceX and fellow crewed launch capability companies Vast Space, Sierra Space, Voyager Space Holdings and Starlab Space urged the FCC to make an allocation for future crewed space stations and operations not connected to the International Space Station, which is to be retired in 2030. They said additional bands should be considered for space-to-space communications. The Aerospace and Flight Test Radio Coordinating Council said that before there are any changes to the L and upper S bands, the FCC, NTIA, DOD and the space launch industry should get more experience with the lower S bands being available for nationwide licensing on a secondary basis. It said the FCC also should monitor commercial launch operators' use of the L and upper S bands under the existing framework.