Report Looks at Propagation Characteristics of High-Frequency Spectrum
NYU Wireless Wednesday filed at the FCC a technical report on millimeter wave propagation measurements inside an office building. The study found a “strong dependence on path loss over distance as the frequency increases,” NYU said. “The paper also shows…
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that simpler, distant-dependent path loss models do virtually the same job at predicting signal strength as more cumbersome and less intuitive models currently used in industry.” Researchers looked at the 28 and 73 GHz bands. The report noted that while the 2.4 and 5 GHz Wi-Fi bands have been widely used for indoor wireless communications for more than 10 years, less is known about high-frequency spectrum. “The impending spectrum and capacity crunch for outdoor cellular may very well lead to the use of the 28 GHz and 73 GHz mmWave frequency bands as an extension for 5G outdoor and indoor communications, especially due to the trend of shrinking cell sizes,” the report said. The FCC is expected to approve an NPRM on high frequency spectrum at its Oct. 22 open meeting (see 1510010067).