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Even in the US, high barriers still exist to mmWave 5G

If we were making an end-of-year league table of the most-hyped topics in the wireless industry in 2018, millimeter wave (mmWave) spectrum would come close to the top. The high frequency spectrum bands certainly hold promise for future 5G use cases that will demand very high data rates. But the fact remains that there will be no official allocations at global level until the World Radio Conference in late 2019 (so no guaranteed global harmonization to encourage a broad ecosystem); technical and cost issues still surround the radios and antennas, particularly in areas like power consumption; and outside the USA, most regulators and operators are still in the mode of tests and trials, and taking a cautious view of near-term…

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