Details of the coordination framework are outline[d] in [ WG1 Final Report ] Appendix 1. To create this coordination process, NTIA and
56. The Commission has implemented a number of different coordination approaches in other services with the aim of efficiently and expeditiously balancing access to spectrum against the need to prevent harmful interference. For example, in the non-voice, non-geostationary mobile-satellite service, prospective earth station licensees must coordinate with Federal government users prior to operating. Similarly, our part 101 rules for the Fixed Microwave Services set forth detailed frequency coordination procedures and interference protection criteria. As discussed in greater detail below, our part 27 rules for the Advanced Wireless Services outline a coordination process that permits both grandfathered Federal and non-Federal users to operate in the AWS-1 band. In general, our coordination rules take as foundational that all parties subject to coordination will work in good faith to accurately assess the potential for interference. We aim to provide flexibility to the parties involved to conduct the interference analysis in an agreed-upon manner with an eye towards continually improving accuracy.
57. Based on the Commission's experience with coordination, we tentatively agree with NTIA's sharing framework recommendation, which is premised on coordination (assuming sharing is necessary because relocation is not possible). In seeking comment on how to further develop and implement NTIA's recommended sharing framework, we recognize, as did NTIA's recommendation, that some criteria, procedures and mechanisms would be codified in the Commission's rules, while others would be codified in the NTIA manual. We also note that some matters may be appropriately addressed as part of the FCC-NTIA coordination process and/or in jointly released documents.
58. Protection Zones for Incumbent Federal Operations. The framework for Federal and non-Federal shared operations in the band is predicated on defined Protection Zones where commercial operations must meet strict coordination standards so as to protect incumbent co-channel Federal polar orbiting satellites and adjacent Federal geo-stationary operations in the 1675-1695 MHz band. NTIA's earlier Fast Track report had identified the 1695-1710 MHz band for reallocation subject to 18 Exclusion Zones that covered larger geographic areas where non-Federal operations would be prohibited, thereby limiting commercial operations in the band. WG1 conducted further analyses, and refined the technical parameters for conducting interference analyses, including LTE system parameters, propagation models, and Federal systems parameters to more accurately depict real world operation of LTE networks and their interaction with the incumbent systems. WG1's analysis also assumed that 1695-1710 MHz would be a mobile uplink band. Overall, the analysis resulted in a significant reduction in the anticipated distance at which an LTE system would potentially cause harmful interference to a Federal earth station receiver. Additionally, given the wide range of measures that can be taken to further mitigate the potential interference, WG1 recommended the use of Protection Zones (coordination areas) rather than Exclusion Zones. The WG1 effort focused on the 18 sites identified in the NTIA Fast Track Report and some locations the NTIA Fast Track Report considered as single locations but included multiple antennas that are widely spaced. With the reductions in the separation distances in the NTIA Fast Track Report, the WG1 Final Report notes that it may be necessary to list each of these antennas separately to ensure adequate protection. Additionally, Government participants in WG1 identified additional sites that they believe warrant protection and stated that they intend to raise the issue with NTIA. The agencies identified an additional 22 sites operating in and adjacent to the 1695-1710 MHz band. On
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