Changes to licence regulations on 3.5 Ghz have been approved by the FCC in an effort to encourage the 5G rollout.

The 150 MHz wide spectrum on the 3.5 GHz (3550MHz to 3700MHz.) band, or Citizens Broadband Radio Service (CBRS), is very busy. Following the rules of the FCC established in 2015, three tiers of users are sharing this band. There are the Incumbent Access Users, in particular the US Navy Radar Operators; the Priority Access Licenses (PALs) which are mainly commercial users like the telcos; and dinally, General Authorized Access (GAA) users which are permitted to use any portion of the 150 MHz frequency so long as it has not been granted to the other two tiers.

FCC Commissioner Michael O’Rielly, who was tasked to lead the review of current regulations and deliberation of new policies with special focus on PALs, claimed the old rules “would not support large-scale deployments, such as mobile or 5G networks… The rules in place favored small-scale, fixed networks, by making it unattractive for any other type of deployment. Basically, the rules were designed so that a select group could get licenses on the cheap.”

The Report and Order published by the FCC on Tuesday October 23 has kept the three tiers in place, but has made modifications to the specific implementations, including:

In addition to extending the license term from three years to ten years and changing it from unrenewable to renewable, the new rules also did away with the limitations on the number of PALs a single applicant can have in one licence area (currently capped at four) and the bandwidth a PAL can use (currently limited to 10 MHz).

Ajit Pai, Chairman of FCC, admitted there has been debate on the new size of PAL licence, with different entrenched interest either arguing for maintaining the current census tract-sized licence, or demanding vastly enlarged areas. He had to cite support from Rural Wireless Association and Competitive Carrier Association, which represents smaller carriers, to defend the Commission’s  decision to opt for county-size license.

“We find that county-based licenses are just right,” said Pai. “This compromise will allow most interested parties, large and small, to bid on 3.5 GHz spectrum in order to provide 5G services. License sizes aside, we make other necessary changes today to promote investment and innovation in the 3.5 GHz band, including extending the license terms and giving an expectancy of license renewal.”

Pai also reassured the GAA users that “even after PALs are granted, General Authorized Access users can provide service in the PAL spectrum until licensees deploy. Taken together, these reforms will help make this band a sandbox for 5G and represent another aspect of our comprehensive 5G FAST plan to secure American leadership in the next generation of wireless connectivity.”

The rule modifications might not look revolutionary, but they should prove positive for more aggressive 5G rollout in the US. With the extended licence term and the possibility of renewal the new regulations provide more confidence to investors looking at long term. Meanwhile, it also strikes a balance both to encourage scale and to protect operators with local ambitions only.