It’s becoming clear that there is going to a never-ending battle over mid-band spectrum. At the end of last year, AT&T asked the FCC to allow for full-power use of CBRS spectrum. AT&T’s request would make the spectrum usable for cellular service while killing many of the existing uses of the spectrum.
Twenty-five organizations sent a joint letter to FCC Chairman Brendon Carr in opposition to the AT&T request. This is perhaps the most diverse set of respondents to sign a joint request to the FCC I can remember. It includes trade associations, large ISPs, public advocates, vendors, and large corporations. The letter was signed by Amazon, the American Library Association, Barich, Inc., the Benton Institute for Broadband & Society, Cambium Networks, Celona, Charter, Comcast, Cox, Deere & Company, Digital Global Systems, Hewlett Packard, Imagine Wireless, Lockheed Martin, Mediacom, Miami-Dade Aviation, Midcontinent, NCTA – The Internet & Television Association, the Open Technology Institute at New America, Public Knowledge, the Schools, Health & Libraries Broadband (SHLB) Coalition, Shure Incorporated, Spectrum for the Future, Tarana Wireless, and WISPA.
This group cautions that the AT&T request would kill the current uses of the CBRS spectrum for rural broadband, competitive mobile services, manufacturing, industrial and enterprise private networks, transportation and logistics connectivity, and school and library access.
AT&T is asking the FCC to move existing CBRS users to the 3.1-3.3 GHz band and auction off the entire 3.55-3.7 GHz spectrum bands for licensed, full-power use. AT&T’s plan would continue to protect the Department of Defense but would relocate everybody else. AT&T argues this would create 530 MHz of contiguous licensed mid-band spectrum to support 5G.
There are several reasons behind the AT&T request. AT&T says that lack of spectrum will block the deployment of next-generation 5G and 6G services. In practical terms, having one large block of spectrum would let cellular carriers implement faster FWA cellular products with speeds up to a gigabit.
AT&T also hates the spectrum sharing rules currently used in the CBRS band. The CBRS band has a three-tiered system. Spectrum us is guaranteed for the U.S. Navy. Some of the spectrum was auctioned using Priority Access Licenses (PALs), that gives the winner the next use of the spectrum after the Navy. Finally, anybody else can use CBRS spectrum in the General Authorized Access (GAA) portion of the band. In every market there is a SAAS administrator that tracks the use of spectrum sharing. It’s clear that AT&T and the other cellular carriers don’t want to see spectrum sharing applied to other mid-band spectrum.
This will be an interesting fight at the FCC. The last FCC under Chairperson Jessica Rosenworcel was strongly in favor of spectrum sharing. New FCC Chairman Brendon Carr has already expressed big support for expanding the availability of mid-band spectrum through auctions.
It’s obvious that the coalition of signees to the letter takes the AT&T request seriously. It’s also becoming clear that FCC decisions on spectrum allocation are not necessarily permanent. Expect an interesting fight over the next year.
