The FCC said it granted in part and denied in part a Wireless Com...
The FCC said it granted in part and denied in part a Wireless Communications Assn. International (WCA) petition for reconsideration of the Commission order adopting service rules to promote the private sector development and use of spectrum in the…
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71-76 GHz, 81-86 GHz and 92-95 GHz bands. The WCA petition focused exclusively on the licensed use of the 71-76 GHz and 81-86 GHz bands. The FCC said its order: (1) Required interference analyses before registering all new or modified links in the 71-76 GHz and 81-86 GHz bands. (2) Eliminated the band segmentation and loading requirements and adopted an efficiency requirement of 0.125 bps/Hz. (3) Modified the interference protection criteria by deleting the minimum 36 dB carrier signal to interference signal (C/I) ratio, and by adopting for receivers employing analog modulation a 1.0 dB degradation limit for the baseband signal-to- noise ratio required to produce an acceptable signal in the receiver. (4) Reaffirmed that the 1.0dB receiver threshold-to-interference ratio degradation limit for digital systems that the FCC had adopted would still apply. (5) Declined WCA request to adopt 36 dB as the maximum required C/I. (6) Adopted a power spectral density limit of 150 mW/100 MHz. (7) Modified the technical parameters to accommodate smaller, less expensive antennas with a minimum antenna gain of 43 dBi and a 1.2 degree half-power beamwidth. The FCC said it declined WCA’s requests to shorten the construction period from 12 months to 180 days; to provide conditional authorization during the pendency of an application for a nationwide, non-exclusive license; and to require automatic transmitter power control for links with effective isotropic radiated power greater than 23 dBW.