As many readers are aware, the FCC issued a notice of proposed rulemaking (NPRM) regarding RLAN operation within the 6 GHz bands. Over the last two and a half years, the FWCC has dedicated itself to protecting fixed links from t in these bands. Understandably so, this is especially important given the diversity of fixed link users in the 6 GHz bands; among others, utility companies, oil and gas companies, and local government agencies, including those dealing with public safety, have large numbers of 6 GHz links that perform unique and crucial tasks. There are approximately 97,000 fixed links in the 6 GHz bands.
With ever-increasing demand for spectrum in fixed services, FWCC has endorsed opening up the 42GHz band as a new global standard for microwave backhaul. (Photo credit: Miguel Ferrando via Wikipedia)
An ever-increasing demand for spectrum has recently turned focus on the 42GHz band. Initially opened in some European countries following the development of ECC REC(01)04, the recently published ECC Report 173 states 12 countries have opened this band including Germany, Norway, Poland, Switzerland and the United Kingdom. In the U.K., this band was part of a wider auction of fixed service bands in 2010, with three operators being granted blocks of spectrum in the 42GHz band as a result.
Building on this growth there is a move to make this band global and earlier this year saw the publication of ITU-R Rec F.2005, which in effect promoted the aforementioned CEPT recommendation to global status. Aviat Networks has been lobbying key regulators to open this band. We are eagerly awaiting a consultation from Canada and responses have already been submitted to recent consultations from France and Ireland containing considerations regarding opening this band. The process is also underway in Finland and Sweden to open up this band. Recently our attention has turned to the United States and whether the FCC will open this band for use by the fixed service.
Back in autumn 2011, Aviat Networks raised this topic within the FWCC (Fixed Wireless Communications Coalition) as the first stage of a petition of rulemaking to the FCC. At first there was only a lukewarm reception to our idea as there was concern that the FCC would refuse the request out-of-hand as some previously released spectrum below 40 GHz is underutilized and, therefore, why is more needed? We pointed out that much of this spectrum (e.g., 39 GHz) was block-allocated by auction and thus has not been readily available to all users and that the licensees have underutilized the spectrum. There is a growing need for spectrum that can be licensed on a flexible, site-by-site basis, and this is reflected by the fact that there are no underutilization issues in bands such as 18 and 23 GHz, which are licensed in this manner. It is no coincidence that auctioned bands tend to underperform in terms of efficiency and utilization. So, undeterred, we forged ahead and this resulted in the production of a FWCC petition to the FCC in May 2012. The FCC has recently placed this petition on public notice, per its procedures. This is a great success for Aviat Networks and our commitment to seeking more spectrum for the fixed service, but the story has not ended here as can be seen from a recent blog entry from the FWCC.
Aviat Networks will continue work with the FWCC to ensure that the FCC gives this proposal full consideration and, having learned important lessons from past spectrum allocations, we will lobby for a flexible approach to the licensing model.
- Coverage Maps for New Wireless Spectrum Available to Fixed Services (aviatnetworks.com)
- CTIA 2012 preview: Expect lots of spectrum talk (networkworld.com)
- How the FCC Could Boost the Wireless Industry (usnews.com)
- FCC to help fund wireless service rollout to rural areas across the US (digitaltrends.com)
- The Great Bandwidth Brawl (technologyreview.com)
- July 1, 2011
- antenna, Aviat Networks, Business, Comsearch, Equipment, FCC, Federal Communications Commission, Fixed Wireless Communications Coalition, FWCC, Ian Marshall, microwave, Network service, Radio, Regulatory Manager, Telecommunication, Telecommunications, wireless
Image via Wikipedia
In response to the recent FCC docket 10-153, many stakeholders proposed relaxing antennas requirements so as to allow the use of smaller antennas in certain circumstances. This is an increasingly important issue as tower rental costs can be as high as 62 percent of the total cost of ownership for a microwave solutions link. As these costs are directly related to antenna size, reducing antenna size leads to a significant reduction in the cost of ownership for microwave equipment links.
The Fixed Wireless Communications Coalition (FWCC), of which Aviat Networks is a major contributor, proposed a possible compromise that would leave Category A standards unchanged while relaxing Category B standards. The latter are less demanding than Category A, and after some further easing, might allow significantly smaller antennas. The rules should permit the use of these smaller antennas where congestion is not a problem, and require upgrades to better antennas where necessary.
A further detailed proposal from Comsearch proposed a new antenna category known as B2, which would lead to a reduction in antenna size of up to 50 percent in some frequency bands. This would be a significant cost saving for link operators.
At the present time, the industry is waiting for the FCC to deliberate on the responses to its 10-153 docket, including those on reducing antenna size.
See the briefing paper below for more information.
Regulatory Manager, Aviat Networks
- Testing the T-shirt antenna (physorg.com)
- Ball Aerospace to build F-35 antennas (bcbr.com)
- Small Cell Mobile Backhaul: The LTE Capacity Shortfall (aviatnetworks.com)
- Ireland Issues Spectrum Consultation on Wireless Communications (aviatnetworks.com)
- Network Services from Aviat Networks’ Network Operations Center (aviatnetworks.com)