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pierredv : 6ghz   4

New Report Tracks Interference Under FCC’s Proposed 6 GHz Plan, Jan 2020
A new report from several electric and water trade organizations provides the FCC with technical data about the impact to critical infrastructure industries (CII) operations if the FCC’s 2018 proposal to open the band to unlicensed use is adopted as proposed.
FCC  6GHz 
6 weeks ago by pierredv
FCC to create new 6 GHz unlicensed band | PolicyTracker, Oct 2018
"The Federal Communications Commission has agreed to publish a Notice of Proposed Rulemaking that would allow unlicensed use of the 6 GHz band. The band, which is also being studied in Europe, is widely seen as the world’s next major band for unlicensed applications.

"Under the terms of the proposals, unlicensed access to the 850 MHz of spectrum would be controlled by a lightweight database. This approach, often described as automated frequency control (AFC), is designed to prevent interference to incumbent fixed links. "

"Satellite earth stations use the band for uplinks throughout the band, but particularly within the U-NII-5 frequencies. The FCC does not think these applications should be taken into account by AFC databases because the receivers (satellites) are located so far away from Earth."

"Cable lobbyists the NCTA, as well as Commissioners Michael O’Rielly and Jessica Rosenworcel, have recently promoted the possibility of a Further NPRM (FNPRM) for the 5875–5925 MHz range. ... That band has been reserved in the US for Dedicated Short-Range Communications (DSRC), ... FCC chair Ajit Pai would not commit to an FNPRM, but ... This did not impress Commissioner Rosenworcel."
PolicyTracker  6GHz  unlicensed  FCC  satellite  DSRC 
october 2018 by pierredv
Automated frequency coordination emerges as compromise for unlicensed access to 6 GHz | PolicyTracker: Aug 2018
"A coalition of major companies with an interest in unlicensed spectrum access is advocating a form of light licensing called automated frequency coordination (AFC) for the 5925–7125 MHz range in the US. The idea is that AFC would prevent interference to the fixed links and C-band satellite uplinks that currently use the band by limiting the locations where radio local area networks (RLANs) can operate. RLANs would also have to periodically transmit identifying information so that the source of any given interference can be rapidly identified."

"PolicyTracker previously noted that advocates of unlicensed use of the 5925–7125 MHz band were proposing to mitigate against potential (supposedly rare) interference to incumbent installations by setting up a database of outdoor RLAN deployments, alongside mandatory transmission of identification information.

The AFC proposal builds on this to propose that RLAN master devices cannot operate in the same channel as an incumbent fixed link within a given exclusion zone. This would be enforced through an AFC function that contains a repository of the bands’ current usage. An exception would be made for indoor devices operating at low power."

"This proposal is supported by Apple, Broadcom, Cisco, Facebook, Google, Hewlett Packard Enterprise (HPE), Intel, Microsoft, Qualcomm and Ruckus Networks"
PolicyTracker  5GHz  spectrum-sharing  6GHz 
august 2018 by pierredv
What are the global prospects for unlicensed use of the 6 GHz band? | PolicyTracker - May 2018
"The 6 GHz band is already allocated in the Radio Regulations to mobile on a co-primary basis alongside the fixed and fixed satellite (uplink) services. Advocates of sharing in the band commissioned RKF Engineering to study the impact that unlicensed use could have on the band’s incumbents within the continental US."

"These findings were challenged by the Fixed Wireless Communications Coalition, which was supported by the National Spectrum Management Association. Satellite operators Intelsat and SES also challenged the rigour of the study, in comments that were subsequently described as “tinkering at the margins” by the unlicensed spectrum advocates."

"In response to the EC mandate, a CEPT sub-group (ECC SE45) will complete a similar baseline study by the end of 2018."
PolicyTracker  6GHz  satellite  unlicensed  ECC 
may 2018 by pierredv

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