Satellite Operations Can Be Protected in 3.5 GHz Shared Spectrum Band, Federated Wireless Says
To assure a successful launch of the new 3.5 GHz shared spectrum band, C-band satellite operations must be protected from harmful interference, Federated Wireless said in FCC comments in docket 12-354. Federated Wireless, which plans to offer a spectrum access…
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system (SAS) in the band, said it understands the concerns of C-band licensees expressed in an August filing. “The success of the Citizens Band will largely rise and fall on how effectively new users in the band can be accommodated without degrading the performance of incumbent systems,” the company said. While the August comments “repeatedly raise concern regarding the complexity of aggregate interference calculations, we do not find that extending aggregate interference-based protection to Fixed Satellite Service (FSS) earth station sites will be unreasonably complex or in any way impracticable,” Federated said. The SAS must ensure that aggregate interference at priority access license boundaries doesn't exceed -80 dBm, the company said: “FSS protection will be simpler than PAL protection because of the need to protect a discrete site rather than a contour.” Federated also said projections in the filing are “overly conservative and, while theoretically possible, in no way do they reflect expected operating conditions for either FSS or Citizens Band operations.”