Federal/non-Federal Sharing and Coordination
53. Several of the bands included in this Notice of Proposed Rulemaking are presently allocated for Federal use and are used by various Federal agencies to carry out their missions. Therefore, enabling commercial access to these bands, if clearing is not practicable, may require some combination of reallocation, relocation, sharing, and/or coordination. We seek comment on the most appropriate solutions for particular bands, including those specifically identified below, that maximize commercial access to these bands. These solutions may include clearing and reallocating, or where not feasible, facilitating shared access to the bands. As noted above, NTIA intends for its CSMAC process to generate actionable recommendations regarding non-Federal access to these bands. We intend to incorporate NTIA's forthcoming recommendations into the record of this proceeding and anticipate that commenters will discuss NTIA's recommendations, including corresponding rules and procedures the Commission should adopt to effectuate them, in comments, reply comments, or written ex partes, as appropriate, depending on the timing.
54. 1695-1710 MHz--Federal/non-Federal Sharing Framework. As noted above, in accordance with the Spectrum Act's mandate that NTIA identify 15 megahertz of spectrum for reallocation from Federal to non-Federal use, NTIA identified the 1695-1710 MHz band and recommended that the Commission reallocate it for commercial use. In making this recommendation, NTIA cited conclusions in the NTIA Fast Track Report, as well as recommendations then being drafted by
55. The WG1 Final Report sets out a framework for sharing the band that protects both the polar-orbiting satellites (POES) that operate in the 1695-1710 MHz band as well as the geostationary satellite earth stations that operate predominately in the adjacent 1675-1695 MHz band, but which overlap slightly with the 1695-1710 MHz band. Additionally, WG1 established interference protection criteria defining the allowed Interference Power Spectral Density (IPSD) levels, tailored to each receiver's RF characteristics. WG1 also refined the interference analysis methodology previously used for the NTIA Fast Track Report to more realistically model the operation of commercial LTE networks and draw the parameters of the Protection Zones. The methodology used to derive the Protection Zones is provided in Appendix 7 of the WG1 Final Report, but more work is needed to create all of the methods and procedures necessary for the coordination process. As explained in the WG1 Final Report:
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