What Holds Back the United States’ Dominance of 5G Technology?

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2Q 2020 | IN-5805


Current Status of C-Band Radio Access in the United States


The rapid growth in data traffic and the convergence of different types of service requirements are creating a new radio spectrum utilization environment. Unlike conventional ways to access radio resources, the candidate spectrum for 5G New Radio (NR) needs to originate to the layout of full frequency bands, which consists of low-band (sub 1 GHz), mid-band (1 to 7 GHz) and high-band (above 24 GHz). Among of these, certain mid-band spectrum—i.e., 3.4 to 4.2 GHz, which is also named C-band—is deemed the most popular frequency band for 5G deployment target on enhanced Mobile Broadband (eMBB) due to its capability of balancing capacity and coverage.

To speed up 5G rollouts, many countries have carried forward spectrum allocation, especially after the 3rd Generation Partnership Project (3GPP) Release 15 was frozen. Meanwhile, the Federal Communications Commission (FCC) of the U.S. government was also promoting Citizens Broadband Radio Service (CBRS) 150 MHz wide broadcast band, i.e., 3550 to 3700 MHz, for 5G use. Unlike other countries’ dedicat…

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