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pierredv : spectrum-sharing   47

Annual Report on the Status of Spectrum Repurposing | Sep 2019 - National Telecommunications and Information Administration
On October 25, 2018, President Donald J. Trump issued a Presidential Memorandum establishing a national policy for the efficient and effective use of radiofrequency spectrum “to help meet our economic, national security, science, safety, and other federal mission goals now and in the future.” Among other things, the Presidential Memorandum required the Secretary of Commerce, working through National Telecommunications and Information Administration (NTIA), and in coordination with the Office of Management and Budget (OMB), the Office of Science and Technology Policy (OSTP), and the Federal Communications Commission (FCC), to submit an annual report “on the status of existing efforts and planned near- to mid-term spectrum repurposing initiatives.” This is the initial report; it addresses activities and events during a period beginning on January 1, 2018 and running through June 30, 2019.
NTIA  spectrum-sharing  spectrum 
6 weeks ago by pierredv
Australian regulator backs unusual hybrid approach for 26 GHz award - PolicyTracker: spectrum management news, research and trainingPolicyTracker: Apr 2019
"A combination of spectrum, apparatus and class licences is the best way to support the three different scenarios on offer in the 24.25—27.5 GHz band, according to the decision paper ACMA published last week."

"The approach would see 2.4 GHz of spectrum (25.1–27.5 GHz) set aside for the mobile industry to offer 5G. However, this chunk is only available in metropolitan areas and large regional centres. It will be auctioned, as is traditional in Australia.

The 27-27.5 GHz part of the band has additional conditions attached to protect an existing satellite gateway.

Elsewhere, the same spectrum will be awarded on an “apparatus” basis. Apparatus licences authorise the licensee to operate devices to which the specific licence relates, such as specific types of transmitter or receiver. Normally, that does not imply an auction in Australia, although the paper says “authorisation may be under a potential new ‘spectrum-space’ area-based apparatus licence type”. It is unclear how this new type of licence will be awarded."
ACMA  PolicyTracker  spectrum-sharing  mmwave 
april 2019 by pierredv
UK regulator seeks to make spectrum sharing easier in mobile bands | PolicyTracker: spectrum news, research and training
"UK regulator Ofcom has proposed new measures to facilitate spectrum sharing in mobile bands, authorising third parties to “exploit” unused awarded spectrum.

A recent consultation proposes a plan which would allow new users to lease prime mobile spectrum in locations where there would be no adverse impact on incumbent licensees, as Ofcom considers this will stimulate services useful to vertical industries and other use cases. "
PolicyTracker  Ofcom  spectrum-sharing  licensing  secondary-licenses 
february 2019 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
Europe works on evolved LSA to accommodate 5G verticals’ needs | PolicyTracker: Aug 2018
Mueck claims eLSA is more similar to CBRS than to its older relative LSA. Like the US model, he says, it has included a new target user. “The prime focus has shifted from MNOs [mobile network operators] to verticals. It aims to make spectrum available to industries which are not able to afford current prices.”

"Wilzeck told PolicyTracker that many verticals would like to deploy 5G networks on their own without dependency on an MNO because local area applications do not really benefit from being in a mobile network."
LSA  ASA  spectrum-sharing  CBRS  PolicyTracker  ETSI 
august 2018 by pierredv
Trump White House OSTP, others agree sharing will be key in future spectrum policy | FierceWireless Jun 2018
"With new and dynamic access techniques and technologies, sharing continues to offer a lot of promise, [Redl] said. "

"There are fewer opportunities for outright clearing and reallocation for exclusive use nowadays, and “I think that’s something that we’re going to have to pivot and really focus on how to make use of what we have and to move quickly to get to those goals,” she said. While there are still bands that can be cleared, that’s going to be both expensive and take a significant amount of time. Given the pace at which wireless is moving, sharing is going to be the way to achieve the goals and use the spectrum as soon as possible, [Guyselman] added."
FierceWireless  spectrum-sharing  OSTP  spectrum  NTIA 
june 2018 by pierredv
Technology agnostic regulatory criteria for licence-exempt spectrum | Digital Policy, Regulation and Governance | Vol 20, No 1
"This paper builds on and expands two other papers on regulatory criteria for license-exempt spectrum which define metrics for spectrum loading and spectrum sharing efficiency. Here, we add metrics for Block Edge Masks and for medium access adaptivity. This gives a complete toolset for the management of radio spectrum."

Johannes Kruys, Peter Anker, (2018) "Technology agnostic regulatory criteria for licence-exempt spectrum", Digital Policy, Regulation and Governance, Vol. 20 Issue: 1, pp.1-13, https://doi.org/10.1108/DPRG-05-2017-0022
Jan-Kruys  Peter-Anker  unlicensed  regulation  spectrum-sharing  spectrum-efficiency  metrics 
march 2018 by pierredv
[pdf] ECC Report 249 - Unwanted emissions of common radio systems: measurements and use in sharing/compatibility studies - Apr 2016
"The scope of this report is:

 To compare the measured characteristics of a limited number of equipment samples with the existing regulatory limits in order:

 To explore the current definitions of the limits used for the OoB and spurious domains given in ITU-R Recommendations and ETSI standards

 To compare the "safety-net" worst case characteristics of OoB emissions in Rec. ITU-R SM.1541 [1] and the measurements of the equipment samples

 To compare spurious domains emissions in ERC/REC 74-01 [2] Rec. ITU-R SM.329 Category B and the measurements of the equipment samples

 To characterise the unwanted emissions of various digital modulation technologies of broadband communication systems. It considers the boundary between the out-of-band (OoB) and spurious domains as well as the levels of unwanted emissions in a set of measurements on equipment samples.

 To develop possible concepts to better characterise the unwanted emissions of broadband systems using digital technology to enable a more efficient use of the radio spectrum in adjacent bands."

"It is observed that the measured emissions are typically lower than the limits in
recommendations and ETSI standards by a significant margin of several tens of dBs in the spurious domain,
except for the harmonic frequencies. This finding has an important implication for sharing and compatibility
studies which are typically based on the assumption that equipment would only just meet the limits set out in
standards. "

"Two questions are raised:

1 Should sharing/compatibility studies be based on typical performance of unwanted emissions rather than the limits?

2 Should those limits/levels in bands adjacent to the operating one (and boundary between the OoB and spurious domains) be redefined or be re-considered on a case-by-case basis to better reflect actual performance of equipment, and therefore allow for increased opportunities for sharing/compatibility and more efficient use of spectrum in future?"

"Regarding the out-of-band domain limits, the measurements have shown that the limits specified in ETSI standards are generally the relevant limits particularly tailored to the specific application; ITU-R SM.1541 [1] (containing only the "safety-net" limits which are mainly only based on services) consequently shows a large margin as expected."
ECC  CEPT  reports  spectrum-sharing  interference  *  resources  OOBE  spurious-emissions  LTE  DAB  GSM 
march 2018 by pierredv
UK regulator eyes spectrum sharing in 3.8-4.2 GHz band | PolicyTracker Jan 2018
“There are two key questions about shared spectrum,” [Steve Unger] said. “One is whether it allows entry by innovative communications providers – that’s always been interesting but not happened quite as we’d like. The other is why wouldn’t you allocate spectrum to new users to build their own private network as long as it can be geographically defined.”

"The primary focus of Ofcom’s spectrum department is currently the heavily litigated auction of 3.4-3.6 GHz, as well as working on the auctions of spectrum at 700 MHz, 3.6-3.8 GHz and 26 GHz. This means plans for 3.8-4.2 GHz are not a top priority yet."
PolicyTracker  Ofcom  spectrum-sharing  C-band 
january 2018 by pierredv
[pdf] Why has spectrum sharing been so hard to accomplish? Martin Cave and William Webb, October 2017
" One background feature is that the momentum of spectrum user rights (SURs) (defined as a limit on the interference that can be expected from others in the same and neighbouring bands) as the primary way of controlling interference appears to have faltered. "

“The other lesson we derive from the past five years is that legacy spectrum users, unsurprisingly, continue to bring forward objections to sharing. And why should they not?”

Two market approaches:

“In the first version, a single licensee is allocated full rights of access to all of the spectrum within given geographical and band limits, subject to restrictions on emissions at the boundaries.” (Example: LSA.)

“In the second version, the licensee is assigned an apparatus licence, which does not fully exhaust the potential of the spectrum concerned – for example, not all the spectrum potentially available may be required by the licensee; or it may not be used continuously; or it may not be used in the full geographical area for which it is assigned. In these circumstances, an overlay licence can be issued, which entitles the new licensee to use any spectrum not exploited by the incumbent.” (The Hazlett approach.)

“Nearly a decade later there has been very little shared use of the bands and TVWS is broadly seen as a failure. What went wrong? There were two major factors: uncertainty and delay.”
William-Webb  Martin-Cave  spectrum-sharing 
november 2017 by pierredv
Spectrum sharing won’t happen without strong regulatory push | PolicyTracker: Oct 2017
"The "project of increasing the effectiveness of our use of spectrum by sharing is still not so much in the foothills, but with the foothills still in fairly distant view," Martin Cave and William Webb said in a paper published this month"

"One reason for the lag is that the momentum of spectrum user rights (defined as a limit on the interference that can be expected from others in the same and neighbouring bands) as the primary way of controlling interference “appears to have faltered”. . . . The other lesson derived from the past five years is that legacy commercial and public spectrum users continue to object to sharing"

"Can the market resolve sharing issues? There are potentially two solutions, the authors said. In one, a single licensee is allocated full access rights to all the spectrum within given geographical and band limits, subject to restrictions on emissions at the boundaries. Here, the regulator could simply authorise trading of “sliced and diced” access rights within the licence and collect information from participants in sharing contracts sufficient to enforce the rights of adjacent users outside the sharing arrangements.

"Under a second option, the licensee is assigned an apparatus licence that does not fully exhaust the potential of the spectrum, allowing the issuance of an overlay licence which entitles the licensee to use any spectrum not being used by the incumbent."
PolicyTracker  William-Webb  Martin-Cave  spectrum-sharing 
november 2017 by pierredv
What can we learn about drone policy from 15 years of research in spectrum sharing? Martin Weiss, June 2017
But what does all of this have to do with drones (or UASs)? First, it seems that airspace is also a highly local phenomenon in that it is crowded in some localities and not in others. Second, it seems that we may want to partition different airspace users. Are three groups enough (as is the case in spectrum)? I’m not sure. But could we imagine a spatial database, like a SAS, to manage air traffic on a local basis? Could we imagine that some firms (e.g., Google or Amazon) may wish to purchase priority rights to certain air corridors?
Martin-Weiss  spectrum-sharing  drones  Medium 
june 2017 by pierredv
SSC Innovations Wins Two Contracts to Provide the Defense Department with the Ability to Leverage Limited Wireless Spectrum
SSC "has been chosen to showcase how its innovative dynamic spectrum access (DSA) technology can be used to give commercial and government entities greater access to limited spectrum resources. The company was awarded two contracts totaling nearly $20 million from the Department of Defense (DoD) to test and deploy DSA so the government can share spectrum with government users, cellular carriers and news organizations."

"The first DoD contract, worth nearly $16.8 million over two years, focuses on improving military communications performance in the field"

"Similarly, in the second contract, SSC’s DSA solution will be used to support spectrum sharing between the DoD and electronic news gathering (ENG) organizations."
SSC  DSA  spectrum-sharing  DoD  ENG 
january 2017 by pierredv
Quantitative Assessments of Spectrum Usage | NTIA - Nov 2016
"In this report, the National Telecommunications and Information Administration (NTIA) presents a summary of the results of its quantitative assessments of spectrum usage "
spectrum-sharing  NTIA  publication 
november 2016 by pierredv
Sizing up Spectrum Sharing Prospects | NTIA - Nov 2016
"NTIA is releasing the Quantitative Assessments of Spectrum Usage that summarizes our initial efforts to evaluate a range of federal spectrum bands for possible sharing with commercial users. These efforts will provide a basis for further detailed studies of potential sharing scenarios."
spectrum-sharing  NTIA 
november 2016 by pierredv
Key Bridge Signs Spectrum Sharing Contract for Defense Information Systems Agency
"Key Bridge LLC is pleased to announce that it recently executed a contract to customize and operate its commercial Spectrum Access System (“SAS”) in the the 2025 – 2110 MHz Band for the Defense Information Systems Agency, Defense Spectrum Organization."

"In January 2015, the U.S. government concluded an auction of the 1755 – 1780 MHz Band for Advanced Wireless Services. As part of the auction some DoD systems must relocate operations into the 2025 – 2110 MHz band, where they will share spectrum with existing Part 74 Electronic News Gathering (“ENG”) applications on a secondary basis. As a rule, non-primary spectrum users must not cause harmful interference to a primary application. DoD spectrum administrators therefore need to know which spectrum resources are available that will not impact civilian use."
spectrum-sharing  SAS  Key-Bridge  BAS  ENG 
october 2016 by pierredv
The Future of Spectrum Sharing with Machine Learning – ElenaNeira.com
DARPA sees artificial intelligence’s machine learning enabling on-the-fly sharing of spectrum at “machine” timescales. It is announcing a 3-year competition, starting in 2017, to identify the best collaborative – not competitive – noble ways to manage spectrum beyond current band assignments and static allocation schemes.
DARPA  Elena-Neira  AI  spectrum  spectrum-sharing  ML 
september 2016 by pierredv
[234] Report on the meeting of Working Party 1A (Geneva, 3-10 June 2015)
see esp. "[234] Annex 01 - Preliminary draft revision of Recommendation ITU-R SM.1132-2 - General principles and methods for sharing between radiocommunication services"
ITU-R  WP1A  spectrum-sharing 
march 2016 by pierredv
US to follow EU in awarding cash prizes for spectrum innovation - PolicyTracker Feb 2016
"A bill proposed in the US Congress would give the National Telecommunications and Information Administration (NTIA) and other national organisations powers to run spectrum competitions." Also mentions DARPA and EU prizes
PolicyTracker  prizes  spectrum-sharing  spectrum  Jessica  Rosenworcel  NTIA  DARPA 
february 2016 by pierredv
A framework for spectrum sharing | Ofcom July 2015
Ofcom is today seeking views on a proposed new framework for thinking about spectrum sharing that would offer a model for considering whether frequencies have the potential to be shared. Sharing will become increasingly important as demand increases. By allowing different users to offer more wireless applications, spectrum sharing can bring benefits to citizens and consumers as well as contributing to optimal use of spectrum. The proposed framework would: identify barriers to sharing; include regulatory tools and market and technological enablers that have potential to facilitate further sharing; and, set out how sharing would be considered on a case-by-case basis, taking into account any existing uses and proposed new uses. Today’s consultation closes on 2 October.
Ofcom  spectrum-sharing  consultation 
august 2015 by pierredv
Licence Exemption of Wireless Telegraphy Devices: Candidates for 2015 | Ofcom
Today’s proposals follow regular Ofcom reviews and are intended to reflect technical developments. In particular, the consultation proposes some minor changes to the existing exemption criteria for the following devices: Personal Mobile Radio (PMR) 446 - liberalising the use of this band (446.0 to 446.2 MHz) by removing analogue and digital demarcations from the frequency bands; Railway Level Crossing Radar - replacing the current ‘exclusion zones’ surrounding Radio Astronomy sites with ‘coordination zones’; and Digital Enhanced Cordless Telecommunications (DECT) equipment - reclassifying the technical requirements, currently classed as Cordless Telephony, to Short Range Devices.
Ofcom  spectrum-sharing  unlicensed 
august 2015 by pierredv
5G Spectrum Sharing Challenge | IEEE DySPAN
"The IEEE DySPAN 2015 Spectrum Sharing Challenge is a competition designed to demonstrate a radio protocol that can achieve high spectral efficiency in coexistence with legacy technology, where in contrast to the traditional transmitter-focused approaches, feedback is given about the legacy receiver instantaneous throughput and packet loss performance in a database."
IEEE  Dyspan  spectrum-sharing 
july 2015 by pierredv
Geographic Sharing in C-band Final Report | Ofcom
"We commissioned this report from Transfinite Systems to provide an independent view of geographic sharing in C-band (between 3.6 GHz to 4.2 GHz) within the UK. The C-band is currently used by fixed satellite services and fixed links, as well as broadband services in limited locations by UK Broadband, and the report examined the opportunity for sharing these frequencies with new mobile services. The central scenario looks at an IMT-Advanced system deployed for capacity enhancement in high population density areas." The key findings are: = half the existing spectrum is available to 65% of the urban+ population = the constraint on operation of mobile in C-band is dominated by the need to protect fixed links deployed across urban areas (eg. Central London). Protection of satellite earth stations is much less constraining due to their location generally being in less populated areas, though some large urban areas may also experience interference.
Ofcom  Transfinite  C-band  satellite  cellular  spectrum-sharing 
july 2015 by pierredv
Radio-Frequency Spectrum Sharing - Ivor Navarro, Jan 2015 (video)
Recording of talk, "Federal regulators, federal agencies and industry working together to satisfy spectrum demands while accomplishing the mission" Focus on radiosonde relocation to 400 MHz For conference, see https://ams.confex.com/ams/95Annual/webprogram/3WXCLIMATE.html
NOAA  spectrum-sharing  satellite 
april 2015 by pierredv
EMC Zone: Spectrum Supportability Risk Assessment – A Last Word….For Now….
"To recap, an SSRA provides a formally documented spectrum supportability risk assessment, with mitigation measure(s) identified, to achieve a spectrum supportability determination from the service Spectrum Management Office or CIO (depending on ACAT and/or level of Interest). An SSRA should include the following components . . ."
SSRA  spectrum  spectrum-sharing  DoD 
april 2015 by pierredv
Promoting Spectrum Sharing In the Wireless Broadband Era - NTIA blog Jan 2015
"If spectrum sharing is to become reality, though, we need to build trust on multiple levels. . . " in dynamic sharing technology, between public and private sectors, in rules that ensure everyone plays by the rules
NTIA  spectrum-sharing  trust  wireless 
january 2015 by pierredv
Pentagon strikes deal with broadcasters, clearing way for 1755-1780 MHz auction = Nov 2013
"The Department of Defense and the broadcasting industry struck a deal that will clear the way for the FCC to auction the 1755-1780 MHz band as part of the AWS-3 auction, a move long sought by the CTIA and wireless carriers clamoring for more airwaves. In a letter sent from the National Telecommunications and Information Administration to the FCC, the NTIA detailed the agreement, which the Pentagon struck with the National Association of Broadcasters. Under the deal, the Defense Department will move its operations off the 1755-1780 MHz band to the 2025-2110 MHz band. TV broadcasters currently use the 2025-2110 MHz band for remote news gathering operations, often to transmit video from the scenes of emergencies. The Defense Department and the broadcasters have agreed to share the spectrum, clearing the way for the 1755-1780 MHz band to be used for commercial mobile services."
DoD  NAB  NTIA  spectrum-sharing  BAS  FierceWireless 
september 2014 by pierredv
Broadcasters, DoD Strike Deal on Sharing BAS Band | Broadcasting & Cable Nov 2013
"Broadcasters and the Defense Department have come to an agreement on sharing spectrum in the Broadcast Auxiliary Service (BAS) band (2025-2110 MHz), the spectrum broadcast journalists use to transmit breaking news stories back to the station." "NTIA billed it as a DoD proposal, but NAB suggested it was a team effort and pointed to its role, as well as that of the Society of Broadcast Engineers (SBE), in coming to an agreement. Kaplan said broadcasters were "happy to help the cause." SBE has experience in coordinating with DoD—broadcasters already share some of the BAS band with the department already, said Kaplan."
DoD  NAB  BAS  spectrum-sharing  NTIA  Broadcasting&Cable 
september 2014 by pierredv
Operators in Europe benefit from active infrastructure sharing while those in Asia–Pacific remain wary - Insight - News | Analysys Mason
"Many operators in Europe share network infrastructure to expand into new market segments, while most APAC operators compete on network coverage and may lag behind in monetising their networks." "Asia–Pacific (APAC) accounts for only 25% (or 9) of the 36 active network sharing arrangements signed in APAC, Europe and North America to date, according to Analysys Mason's forthcoming Network sharing tracker. By comparison, Europe accounts for 61% (or 22). Sharing network coverage has allowed operators in Europe to quickly and cost-effectively expand into new market segments. European operators are also more focused on competing by differentiating their services rather than their coverage." "Active network sharing refers to sharing of active electronic infrastructure and radio spectrum. Shared equipment includes: antennas, feeder cables, radio access networks (RANs), base transceiver stations (BTSs)/Node Bs, BSC/RNC, backhaul (transmission) and microwave radio equipment."
AnalysysMason  network-sharing  infrastructure-sharing  spectrum-sharing 
may 2014 by pierredv
Ofcom considers licensing regime for higher duty cycle NRPs - PolicyTracker May 2014
"UK regulator Ofcom is mulling a licensing regime for the higher duty cycle network relay points (NRPs) needed to power the Internet of Things (IOT)." "The ECC report noted that if there are too many NRPs in an area, and the likelihood of interference increases significantly, it may be too late to impose new mitigation restrictions." "Ofcom raised the issue of NRPs in a December 2013 technical proposal to authorise the licence-exempt use of short-range devices (SRDs) in the 870-876 MHz and 915-921 MHz bands. The measures it proposed for SRDs and radio frequency identification devices (RFIDs) in the bands came from CEPT recommendations." "Based on CEPT's findings, Ofcom didn't recommend exempting those higher duty NRPs from licensing, but said it would review whether to permit them if there was demand for them." "The regulator also wants to promote the development of a technical solution that will allow “polite sharing” of higher duty cycle NRPs and to see that standards are craft"
PolicyTracker  Ofcom  spectrum-sharing  network  relay  point  NRP  SRD  RFID  internet-of-things  ECC  800MHz  900MHz 
may 2014 by pierredv
FCC's latest proposal for 3.5 GHz band includes auctioned licenses - FierceWirelessTech japril 2014
"As expected, the FCC issued updated proposals regarding a three-tiered access and spectrum-sharing model for the 3.5 GHz band, with a flexible approach now being proposed for the priority access tier that could include auctioned licenses under certain conditions."
3.5GHz  FCC  auctions  spectrum-sharing  FierceWireless 
april 2014 by pierredv
wo US tech firms make bold spectrum efficiency claims
"We asked consultant Simon Saunders to assess the merits of two proposed methods for using spectrum more efficiently. Two US companies claim to have found quite different ways to increase dramatically the amount of data being transmitted over the same amount of spectrum. MagnaCom says it has invented a new digital modulation technology that produces a 50 per saving in spectrum use, while Kumu Networks claims to have found a way to double spectrum efficiency by allowing radio receivers to transmit and receive signals at the same time."
PolicyTracker  MagnaCom  Kumu  spectrum-sharing 
april 2014 by pierredv
Sweden reallocates 700 MHz band for mobile use
"Sweden is pressing ahead with plans to reallocate the 700 MHz band for mobile use and with a new approach to spectrum management that will place more emphasis on sharing. The European Broadcasting Union (EBU) has expressed “serious concern” about Sweden’s decision to re-allocate the 700 MHz band for mobile broadband from 2017, arguing that the switchover is happening too quickly and will “jeopardise the integrity” of TV services in the country" "Another indication that big changes in spectrum planning are under way in Sweden is PTS's new spectrum strategy, which was recently put out for consultation. The most striking thing about it is the increased role proposed for spectrum sharing. "
PolicyTracker  700MHz  DTV  cellular  Sweden  EBU  spectrum-sharing 
april 2014 by pierredv
Military Considers Sharing Radar Frequencies with Wireless Networks | MIT Technology Review
"While commercial wireless networks are congested, frequencies set aside for military purposes are lightly used. Now wireless researchers and the U.S. Navy will get a chance to see whether some of those airwaves can be shared, which could lead to innovative new services. In a test on Monday, the Navy will fire up an AN/SPY 1 radar—a powerful system that normally scans for incoming missiles and bombers—on an island off Virginia’s eastern shore. At the same time, visiting academic and corporate researchers will tune portable wireless transmitters to the same frequency to see what happens."
spectrum-sharing  3.5GHz  radar  LTE 
august 2013 by pierredv
[1304.1658v1] Beyond Nash Equilibrium in Open Spectrum Sharing: Lorenz Equilibrium in Discrete Games
"A new game theoretical solution concept for open spectrum sharing in cognitive radio (CR) environments is presented, the Lorenz equilibrium (LE). Both Nash and Pareto solution concepts have limitations when applied to real world problems. Nash equilibrium (NE) rarely ensures maximal payoff and it is frequently Pareto inefficient. The Pareto set is usually a large set of solutions, often too hard to process. The Lorenz equilibrium is a subset of Pareto efficient solutions that are equitable for all players and ensures a higher payoff than the Nash equilibrium. LE induces a selection criterion of NE, when several are present in a game (e.g. many-player discrete games) and when fairness is an issue. Besides being an effective NE selection criterion, the LE is an interesting game theoretical situation per se, useful for CR interaction analysis."
arXiv  spectrum-sharing  spectrum  economics 
may 2013 by pierredv
The End of Spectrum ‘Scarcity’ | NewAmerica.net Michael Calabrese, June 2009
Three recommendations
1. inventory
2. unlock band-by-band building on whitespace database: "There is no reason to limit the functionality of the TV Bands Database to the TV band frequencies."
3. set of NTIA and FCC inquiries
spectrum-shortage  spectrum-sharing  whitespaces  database  x:NewAmerica 
november 2011 by pierredv
Overall Backhaul Overhaul Update: New Rules Adopted, More on the Way : CommLawBlog
" The FCC has now adopted the proposals it put forth a year ago to facilitate the use of fixed service spectrum for wireless backhaul" the new rules will: = Allow fixed service wireless into the 7 and 13 GHz bands currently occupied by broadcast auxiliary services (BAS) and cable TV relay service (CARS) = Permit adaptive modulation = Eliminate the “final link” rule
fcc  wireless  backhaul  CommLawBlog  via  Steve  Crowley  cars  BAS  spectrum-sharing 
august 2011 by pierredv
Technology-dependent commons: The example of frequency spectrum for broadcasting in Europe in the 1920s | Wormbs | International Journal of the Commons
link to the journal via Dale
Abstract:The aim of this paper is to test the design principles, identified as crucial for institutions governing long enduring common pool resources, on the use of the electromagnetic spectrum, a peculiar resource in many respects. The case is the medium wave band for broadcasting in Europe in the 1920s. As the spectrum is a resource dependent on technology for its use, the aim is also to investigate the influence of technology on the governing institutions.
spectrum  wireless  spectrum-sharing  history  commons  x:thecommonsjournal 
august 2011 by pierredv
Potential L-Band Frequency Sharing - National Weather Service - EMWIN
"Of special interest to EMWIN users and vendors is FCC Public Notice DA-1035 (ET Docket No. 10-123) released on June 4, 2010 calling for public comment on the extent and manner of use of the 1675-1710 MHz frequency band by non-federal users"
wireless  FCC  NOAA  spectrum-sharing  weather 
august 2011 by pierredv

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