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pierredv : fss   23

S.1426 : Aggregate power flux-density limits, at the FSS satellite orbit for radio local area network (RLAN) transmitters operating in the 5 150-5 250 MHz band sharing frequencies with the FSS (RR No. S5.447A)
"Aggregate power flux-density limits, at the FSS satellite orbit for radio local area network (RLAN) transmitters operating in the 5 150-5 250 MHz band sharing frequencies with the FSS (RR No. S5.447A)"

See also M.1454 on calculation of number of RLANs tolerable by FSS satellite receivers operating in 5150-5250 MHz
ITU-R  interference-limits  pfd  FSS  5GHz  harm-claim-thresholds 
november 2018 by pierredv
Milking the “Cow” or Shooting for the “Stars” - Northern Sky Research Aug 2018
"While HTS attracts the hype and promises rapid revenue growth, the truth is that today, FSS, and most specifically video, continues to be the bread and butter of satellite operators. According to NSR’s Global Satellite Capacity Supply and Demand, 15th Edition report, cumulative satellite capacity revenues over the next 10 years will surpass $189 billion, with widebeam FSS still driving 53% of these revenues. How should satellite operators balance growth and revenues?"

"Several HTS payloads have been slow in attracting customers as the operators underestimated the effort to develop sales channels. Similarly, network management for a widebeam satellite is much simpler than for an HTS satellite."
NSR  satellite  HTS  GEO  FSS  business  market-research 
august 2018 by pierredv
New generation of non-geostationary constellations poses challenges for WRC-19 | PolicyTracker: the spectrum management newsletter
"Article 22.2 of the Radio Regulations, the ITU document that manages international spectrum use, states that geostationary orbit (GSO) satellites cannot receive interference from NGSO satellites in fixed-satellite service (FSS) bands. However, the regulations do not yet include any rules on how this is to be achieved above 30 GHz.

To address this, agenda item 1.6 of WRC-19 considers the regulatory framework for NGSO satellites to use the fixed-satellite service at 37.5–39.5 GHz (space-to-Earth), 47.2–50.2 GHz (Earth-to-space) and 50.4–51.4 GHz (Earth-to-space).

In addition to preventing interference to GSO satellites, the rules also need to find a way for NGSO satellites to avoid interference to each other, to passive earth exploration satellite services at 36-37 GHz and 50.2-50.4 GHz and to radio astronomy services at 42.5-43.5 GHz, 48.94-49.04 GHz and 51.4-54.25 GHz."

"... WP 4A had identified a way to calculate unavailability: the convolution methodology. This is meant to protect GSO satellites without imposing onerous and spectrally inefficient equivalent power flux-density (EPFD) limits on NGSO systems.

It works by calculating the single entry increase in unavailability to a reference GSO link, compared to a maximum stipulated in the Radio Regulations. Administrations then determine the overall increase in link unavailability so that aggregate interference will not degrade the GSO satellites’ availability by more than 10 per cent."

US IWG-3: "Alexander Epshteyn, an engineer at Boeing, drafted a paper for the group’s meeting in late March that proposed solutions to protect GSO networks based on the convolution methodology."
PolicyTracker  NGSO  ITU-R  WRC-19  GSO  EPFD  FSS  interference  *  Boeing 
may 2018 by pierredv
S.1431 : Methods to enhance sharing between non-GSO FSS systems (except MSS feeder links) in the frequency bands between 10-30 GHz
S.1431 : Methods to enhance sharing between non-GSO FSS systems (except MSS feeder links) in the frequency bands between 10-30 GHz
ITU-R  NGSO  FSS  sharing 
april 2018 by pierredv
S.1503 : Functional description to be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite service systems or networks with limits contained in Article 22 of the Radio Regulations
S.1503 : Functional description to be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite service systems or networks with limits contained in Article 22 of the Radio Regulations
ITU-R  NGSO  software  FSS 
april 2018 by pierredv
Interference and Compatibility Studies Between Satellite Service Systems and Sys
Abstract
This paper provides the results of interference and compatibility studies in order to assess the sharing conditions between Fixed Satellite Service (FSS) and Fixed Service provided by High Altitude Platform Stations (HAPS) in the same operational frequency bands and discusses the most important operational parameters that have an impact on the interference calculations. To characterize interference phenomena between the two systems carrier to interference (C/I) ratios are evaluated. Simulation results under the scenario of a realistic deployment of HAPS and the use of different satellite configurations are presented. An interesting result derived from the simulations is that FSS/GSO Earth Stations and HAPS ground stations may coexist in the HAPS coverage area under certain considerations.
coexistence  interference  HAPS  GSO  FSS  satellite 
february 2018 by pierredv
Non-geostationary satellites want more spectrum sharing in 3.7-7 GHz bands | PolicyTracker: the spectrum management newsletter
"WRC-19 Agenda Item 9.1.3 calls for studies into the technical, operational and regulatory feasibility of allowing new non-geostationary satellites in the 3.7-4.2 GHz (C-band), 4.5-4.8 GHz, 5.925-6.425 GHz and 6.725-7.025 GHz bands allocated to fixed satellite services (FSS). The proposal isn't particularly controversial but any additional spectrum sharing must be handled with care, satellite operators say."

"Resolution 157 from WRC-15 [notes] that both orbits and their associated spectrum are valuable resources, equitable access to which should be safeguarded for the benefit of all countries"

"Current ITU rules dealing with the protection of GSO systems from non-GSO systems in the C-band were set over 15 years ago based on some now older non-GSO designs, said EMEA Satellite Operators Association secretary-general Aarti Holla-Maini. Those rules were originally made for the benefit of non-GSO operators, and were an alternative to the more general rule that simply obligates non-GSO systems to protect geostationary systems. Satellite manufacturers now want updated values in the ITU rules that will give them more flexibility in non-GSO designs while still protecting GSO satellites."
PolicyTracker  satellite  C-band  FSS  NGSO  GSO  ITU 
december 2017 by pierredv
FCC to consider making 1,700 MHz of high-band spectrum available | FierceWireless Oct 2017
"The FCC at its next open meeting will consider an order that would make available a whopping 1,700 MHz of additional high-frequency spectrum for flexible terrestrial wireless use and provide 4 gigahertz for core satellite use. The meeting is scheduled for Thursday, Nov. 16. FCC Chairman Ajit Pai said in a blog post that the decision to make more spectrum available would build on the 11 gigahertz of spectrum that the FCC made available for flexible terrestrial wireless use last year and would be a major marker in the United States' efforts to lead the world in 5G innovation."

"“Unlike terrestrial providers of broadband services, they [satellite companies] object to participating in auctions to secure spectrum rights. But dedicating spectrum for only one type of mobile broadband—satellite mobile broadband—is poor spectrum management,” T-Mobile wrote.

Verizon is also urging the FCC to reject efforts by the satellite industry to dismantle key aspects of the proposed rules, which would have a detrimental impact on 5G deployment. Verizon argued that the Spectrum Frontiers Order provided satellite companies with a “windfall” by creating interference zones around grandfathered and new earth stations under particular conditions.

A group of eight satellite companies, including Boeing, OneWeb and Hughes, submitted a revised proposal (PDF) on Oct. 19 saying they think it addresses concerns raised by terrestrial interests throughout the proceeding and strikes a fair and spectrally efficient balance between the needs of Fixed Satellite Service (FSS) and Upper Microwave Flexible Use Service (UMFUS) operators in the 28 and 39 GHz bands and provides a framework that is suitable for sharing in the 47 GHz and 50 GHz bands."
FierceWireless  satellite  UMFUS  FSS  T-Mobile  Verizon  OneWeb  Hughes  Boeing  47GHz  28GHz  29GHz 
october 2017 by pierredv
(19) INTERFERENCE ANALYSIS BETWEEN FIXED SATELLITE SERVICE SYSTEMS AND FIXED SERVICE USING HIGH ALTITUDE PLATFORM STATIONS IN THE V-BAND
Abstract
This paper provides the results of studies in order to assess the sharing conditions between Fixed Satellite Service (FSS) and High Altitude Platform Stations (HAPS) in the same operational frequency bands. To characterize interference phenomena between the two systems carrier to interference (C/I) ratios are evaluated. Simulation results under the scenario of a realistic deployment of HAPS and the use of different satellite configurations are presented. An interesting result derived from the simulations is that FSS/GSO Earth Stations and HAPS ground stations may coexist in the HAPS coverage area under certain considerations. arrive at a satisfactory long term environment. The efficient utilization of the same spectrum is of great importance due to the scarce resources of it. Taking into consideration the fact that the allocation of the fixed-satellite service in the bands 47.2-50.2 GHz for Earth-to-Space transmission is more important than that in the 37.5-39.5 GHz band in order to accommodate feeder links to broadcasting satellites and that the 47/48 GHz band is the unique allocation of HAPS fixed service in Europe, this paper investigates the requirements and criteria of the two systems in order to operate in the same frequency bands in an non-interference basis and discusses as well the most important operational parameters that have an impact on the interference calculations. At first the potential interference caused by HAPS platform directing to the geostationary satellite receiver is examined. To characterize interference phenomena between the two systems carrier to interference (C/I) ratios are evaluated and the interference values are compared with the maximum permissible interference powers for the proper operation of the Fixed Satellite System. The same procedure is followed for the examination of the interference paths from FSS earth stations to HAPS ground stations. The first section introduces a typical HAPS-based FS system in V-band while the second describes the operational technical characteristics of GSO/FSS systems plaaned for the 40/50 GHz band. The last section of this paper gives a detailed description of the potential interference between HAPS and FSS systems and summarizes the results of the interference analysis
FSS  FS  HAPS  interference  V-band  GSO  satellite 
september 2017 by pierredv
WiGig? Why Not! FCC Sets Aside Significant Unlicensed Spectrum for Deployment and Support of 5G Wireless Services in Latest "Spectrum Frontiers" Order - Advisories & Blogs - Davis Wright Tremaine
"On Thursday, July 14, the FCC adopted its “Spectrum Frontiers” Order which allocates a substantial amount of high-frequency millimeter wave spectrum for both licensed and unlicensed use to support the deployment of the “next generational evolution of wireless technology to so-called” 5G wireless networks and services. This order, and the agency’s speed in adopting this item, reflects the FCC’s commitment to expanding spectrum access through both traditional (licensed) and emerging (unlicensed and shared) access regimes."

Key Components of the Order

= Expanding Spectrum for WiGig and Other Unlicensed Uses in the 64-71 GHz Band

= Opening Up the 28 GHz Band for Mobile Use & Sharing With Satellite Services (UMFUS)

= PEA Licenses in the 39 GHz Band, Subject to Military Allocations and Incumbents

= PEA Licenses in the 37 GHz Band, Plus 600 MHz for Dynamic Sharing
FCC  Spectrum-Frontiers  rulemaking  DWT  LMDS  FSS 
may 2017 by pierredv
Report Reveals Discord In FSS | CommLawBlog, June 2010
"The past few years, the report has been a snooze, mainly because Intelsat and Inmarsat have been the only ones bothering to comment. Relying on such a limited, one-sided record, the Commission’s reports to Congress have tended to describe a rosy, peaceful view of the privatization process. This year’s report, however, is anything but rosy or peaceful. Rather, it reveals a growing acrimony within the Fixed Satellite Services (FSS) industry."
satellite  FSS  ORBIT-Act  CommLawBlog 
april 2017 by pierredv
Spectrum for drones a key issue for WRC-15 — PolicyTracker, Oct 2014
As interest in drones ("unmanned aircraft systems" or UAS) continues to grow, one big question is what spectrum could be used for their command and control. WRC-15 will consider whether frequency bands allocated to the fixed satellite service (FSS) are suitable for the control and non-payload communications of drones in commercial airspace.
UAS  FSS  WRC-15  drones  CNPC 
april 2017 by pierredv
ICAO tries to solve "chicken and egg" situation of satellite CNPC for UAS — PolicyTracker, Sep 2015
"Most regions have so far opposed a proposal to allow the use of satellite control and non-payload communications for unmanned aircraft systems in spectrum allocated to the fixed satellite service. A new statement from the ICAO looks set to change that.
Representatives of the International Civil Aviation Organization (ICAO) have expressed support for an Inter-American proposal (IAP) that would allow the fixed satellite service (FSS) bands to be used for satellite control and non-payload communications (CNPC) of unmanned aircraft systems (UAS). "
ICAO  UAS  CNPC  satellite  FSS 
april 2017 by pierredv
Boeing seeks permission to launch satellite constellation in same V-band spectrum as 5G systems - FierceWirelessTech
"Boeing last week filed an application with the FCC to launch and operate a geo-stationary satellite orbit (NGSO) fixed satellite service (FSS) system operating in low Earth orbit (LEO) in the 37.5-42.5 GHz, 47.2-50.2 and 50.4-52.4 GHz bands, collectively known as the V-Band. In so doing, it's putting its hat into the same ring as companies like SpaceX and OneWeb."
"Boeing's application said its NGSO system would consist of a total constellation of 2,956 NGSO FSS satellite to provide very high speed, low latency internet connectivity for user terminals via the system's network access gateways and associated terrestrial fiber network. "
Boeing  V-band  SpaceX  OneWeb  NGSO  FSS  FierceWireless 
june 2016 by pierredv
Dish files patent application for mobile interactive satellite service - FierceWirelessTech
"Dish Network (NASDAQ: DISH) has applied for a patent that involves a hybrid satellite / terrestrial service capable of delivering interactive video and broadband Internet to consumers in both urban and rural areas, according to a patent application. The filing was first reported by The Donohue Report.

The patent filing describes techniques for reusing frequencies between satellite and terrestrial systems. In addition, it discloses a mechanism for networking satellite and terrestrial networks in which the power levels of the satellite and terrestrial communications are controlled so as to minimize co-channel interference. "
"OneWeb on April 28, 2016, filed an FCC application seeking access to the U.S. market for its planned NGSO satellite system to use these frequencies."
FierceWireless  Dish  MVDDS  NGSO  FSS  12GHz  OneWeb 
june 2016 by pierredv
47 CFR 25.208 - Power flux density limits. | US Law | LII / Legal Information Institute
Cites to Recommendation ITU-R S.1428
"... the power flux density at the Earth's surface produced by emissions from a space station for all conditions and for all methods of modulation shall not exceed the following values ..."
FCC  rules  EPFD  satellite  interference  field-strength  FSS  GSO  NGSO  non-GSO  SkyBridge  47CFR  pfd 
july 2015 by pierredv
Spectrum for drones a key issue for WRC-15 -- PolicyTracker Oct 2014
"As interest in drones ("unmanned aircraft systems" or UAS) continues to grow, one big question is what spectrum could be used for their command and control. WRC-15 will consider whether frequency bands allocated to the fixed satellite service (FSS) are suitable for the control and non-payload communications of drones in commercial airspace."
WRC-15  drones  UAS  FSS  satellite  aviation  ITU  ICAO 
october 2014 by pierredv
WRC-2000: Results of Interest to Satellite Operators - Via Satellite
See particularly "Sharing between non-GSO FSS, GSO FSS and FS" Line via Rich Currier, March 2014
25.208  EPFD  WRC  SkyBridge  WRC-2000  satellite  interference  field-strength  FSS  GSO  NGSO 
march 2014 by pierredv

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