Space Force issues 5G, C-band RFI

On May 20, the U.S. Space Force posted a request for information on 5G’s impact on the future of satellite C-band availability. Responses are due by 4:00 p.m. Eastern on June 3.

The United States Space Force Commercial Satellite Communications Office (CSCO) acquires commercial satellite communications (COMSATCOM) services on behalf of mission partners in the United States Department of Defense (DoD) and other entities.

CSCO is seeking to understand industry’s plans for accommodating the shift in C-Band from SATCOM to terrestrial 5G, with relation to the Federal Communications Commission (FCC) press release, “FCC acts to free up C-band spectrum for 5g services” on February 28, 2020. Your responses to all questions should be answered in terms of plans for both the continental United States (CONUS) and international COMSATCOM services delivery.

Information Requested

The CSCO requests interested parties address the following questions:

– How does the FCC’s latest ruling impact satellite communications in the C-band
Spectrum, with relation to the DoD?

– What existing C-band satellites are impacted by the FCC’s latest ruling, and in what

– Provide the expected end of life for affected satellites.

– What C-band satellites are impacted internationally, and in what way?

– Provide the expected end of life for affected satellites.

– As C-band services become limited, how does industry plan to supplement the impact of the FCC’s Ruling? What alternatives exist comparable to capabilities lost?

– In addition to the impact created in the CONUS region, what alternatives to C-band is
industry researching internationally?

– As current C-band satellites achieve end of life, what will be the effect on launch plans
for the future?

– CSCO understands C-band services may operate in the 4GHz to 4.2GHz range with a filter, what is the approximate size and form factor of the required filter? Is there any other type of equipment required or recommended to operate in the 5G environment?

– CSCO understands other countries have allocated, or are planning to allocate, portions of the C-band or adjacent spectrum to 5G. What portions of the satellite communication spectrum will be affected? Provide a description of the frequency range impacted by country.

Full information is available here.

Source: SAM