Boeing Challenges Nokia, Samsung, Other Criticisms of 37/39 GHz Band Plans
Concerns about Boeing's proposed non-geostationary orbit (NGSO) downlinks in the 37/39 GHz band have "foundational errors and significantly flawed assumptions," the company said in a filing Monday in docket 14-177. When the proper data are used, Boeing said, they support…
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the idea that the company's NGSO system in the 37/39 GHz band will have emission levels within acceptable levels to protect terrestrial services and upper microwave flexible use service (UMFUS). Boeing said technical assertions by Straight Path Communications, T-Mobile, Nokia, Samsung and CTIA are based on incorrect equations or modeling. Boeing said T-Mobile had unjustified concerns that UMFUS devices with multiple antenna arrays might get more satellite downlink interference since there would be no additional satellites transmitting above the horizon. Boeing said Straight Path's concerns about fixed satellite service downlink interference neglect "the transient nature of NGSO interference" and include assumptions that satellites will always operate at peak transmission levels rather than only in response to rain events. Boeing urged enforcing equivalent power flux density limits. It said the lack of legitimate challenges to its technical analysis and findings means the FCC should authorize NGSOs to operate in the 37/39 GHz band to provide broadband services opportunistically to satellite end user receivers. T-Mobile and Straight Path didn't comment Tuesday.