< draft-ietf-raw-use-cases-00.txt		draft-ietf-raw-use-cases-01.txt >
	RAW G. Papadopoulos		RAW G. Papadopoulos
	Internet-Draft IMT Atlantique		Internet-Draft IMT Atlantique
	Intended status: Standards Track P. Thubert		Intended status: Standards Track P. Thubert
	Expires: April 26, 2021 Cisco		Expires: August 26, 2021 Cisco
	F. Theoleyre		F. Theoleyre
	CNRS		CNRS
	CJ. Bernardos		CJ. Bernardos
	UC3M		UC3M
	October 23, 2020		February 22, 2021
	RAW use cases		RAW use cases
	draft-ietf-raw-use-cases-00		draft-ietf-raw-use-cases-01
	Abstract		Abstract
	The wireless medium presents significant specific challenges to		The wireless medium presents significant specific challenges to
	achieve properties similar to those of wired deterministic networks.		achieve properties similar to those of wired deterministic networks.
	At the same time, a number of use cases cannot be solved with wires		At the same time, a number of use cases cannot be solved with wires
	and justify the extra effort of going wireless. This document		and justify the extra effort of going wireless. This document
	presents wireless use cases demanding reliable and available		presents wireless use cases demanding reliable and available
	behavior.		behavior.
	skipping to change at page 1, line 40 ¶		skipping to change at page 1, line 40 ¶
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF). Note that other groups may also distribute		Task Force (IETF). Note that other groups may also distribute
	working documents as Internet-Drafts. The list of current Internet-		working documents as Internet-Drafts. The list of current Internet-
	Drafts is at https://datatracker.ietf.org/drafts/current/.		Drafts is at https://datatracker.ietf.org/drafts/current/.
	Internet-Drafts are draft documents valid for a maximum of six months		Internet-Drafts are draft documents valid for a maximum of six months
	and may be updated, replaced, or obsoleted by other documents at any		and may be updated, replaced, or obsoleted by other documents at any
	time. It is inappropriate to use Internet-Drafts as reference		time. It is inappropriate to use Internet-Drafts as reference
	material or to cite them other than as "work in progress."		material or to cite them other than as "work in progress."
	This Internet-Draft will expire on April 26, 2021.		This Internet-Draft will expire on August 26, 2021.
	Copyright Notice		Copyright Notice
	Copyright (c) 2020 IETF Trust and the persons identified as the		Copyright (c) 2021 IETF Trust and the persons identified as the
	document authors. All rights reserved.		document authors. All rights reserved.
	This document is subject to BCP 78 and the IETF Trust's Legal		This document is subject to BCP 78 and the IETF Trust's Legal
	Provisions Relating to IETF Documents		Provisions Relating to IETF Documents
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	publication of this document. Please review these documents		publication of this document. Please review these documents
	carefully, as they describe your rights and restrictions with respect		carefully, as they describe your rights and restrictions with respect
	to this document. Code Components extracted from this document must		to this document. Code Components extracted from this document must
	include Simplified BSD License text as described in Section 4.e of		include Simplified BSD License text as described in Section 4.e of
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	skipping to change at page 5, line 21 ¶		skipping to change at page 5, line 21 ¶
	2. Aeronautical Communications		2. Aeronautical Communications
	Aircraft are currently connected to ATC (Air-Traffic Control) and AOC		Aircraft are currently connected to ATC (Air-Traffic Control) and AOC
	(Airline Operational Control) via voice and data communications		(Airline Operational Control) via voice and data communications
	systems through all phases of a flight. Within the airport terminal,		systems through all phases of a flight. Within the airport terminal,
	connectivity is focused on high bandwidth communications while during		connectivity is focused on high bandwidth communications while during
	en-route high reliability, robustness and range is the main focus.		en-route high reliability, robustness and range is the main focus.
	2.1. Problem Statement		2.1. Problem Statement
	Worldwide civil air traffic is expected to grow by 84% until 2040		Up to 2020 civil air traffic has been growing constantly at a
	compared to 2017 [EURO20]. Thus, legacy systems in air traffic		compound rate of 5.8% per year [ACI19] and despite the severe impact
	management (ATM) are likely to reach their capacity limits and the		of the COVID-19 pandemic, air traffic growth is expected to resume
	need for new aeronautical communication technologies becomes		very quickly in post-pandemic times [IAT20] [IAC20]. Thus, legacy
	apparent. Especially problematic is the saturation of VHF band in		systems in air traffic management (ATM) are likely to reach their
	high density areas in Europe, the US, and Asia [KEAV20] [FAA20]		capacity limits and the need for new aeronautical communication
	calling for suitable new digital approaches such as AeroMACS for		technologies becomes apparent. Especially problematic is the
	airport communications, SatCOM for remote domains, and LDACS as long-		saturation of VHF band in high density areas in Europe, the US, and
	range terrestrial aeronautical communications system. Making the		Asia [KEAV20] [FAA20] calling for suitable new digital approaches
	frequency spectrum's usage more efficient a transition from analogue		such as AeroMACS for airport communications, SatCOM for remote
	voice to digital data communication [PLA14] is necessary to cope with		domains, and LDACS as long-range terrestrial aeronautical
	the expected growth of civil aviation and its supporting		communications system. Making the frequency spectrum's usage more
	infrastructure. A promising candidate for long range terrestrial		efficient a transition from analogue voice to digital data
	communications, already in the process of being standardized in the		communication [PLA14] is necessary to cope with the expected growth
	International Civil Aviation Organization (ICAO), is the L-band		of civil aviation and its supporting infrastructure. A promising
	Digital Aeronautical Communications System (LDACS) [ICAO18]		candidate for long range terrestrial communications, already in the
	[I-D.maeurer-raw-ldacs].		process of being standardized in the International Civil Aviation
			Organization (ICAO), is the L-band Digital Aeronautical
			Communications System (LDACS) [ICAO18] [I-D.ietf-raw-ldacs].
	2.2. Specifics		2.2. Specifics
	During the creation process of new communications system, analogue		During the creation process of new communications system, analogue
	voice is replaced by digital data communication. This sets a		voice is replaced by digital data communication. This sets a
	paradigm shift from analogue to digital wireless communications and		paradigm shift from analogue to digital wireless communications and
	supports the related trend towards increased autonomous data		supports the related trend towards increased autonomous data
	processing that the Future Communications Infrastructure (FCI) in		processing that the Future Communications Infrastructure (FCI) in
	civil aviation must provide. The FCI is depicted in Figure 1:		civil aviation must provide. The FCI is depicted in Figure 1:
	skipping to change at page 7, line 16 ¶		skipping to change at page 7, line 16 ¶
	thus solutions must be modular, easily adaptable and updatable.		thus solutions must be modular, easily adaptable and updatable.
	o Interoperability: All 192 members of the international Civil		o Interoperability: All 192 members of the international Civil
	Aviation Organization (ICAO) must be able to use these solutions.		Aviation Organization (ICAO) must be able to use these solutions.
	2.4. The Need for Wireless		2.4. The Need for Wireless
	In a high mobility environment such as aviation, the envisioned		In a high mobility environment such as aviation, the envisioned
	solutions to provide worldwide coverage of data connections with in-		solutions to provide worldwide coverage of data connections with in-
	flight aircraft require a multi-system, multi-link, multi-hop		flight aircraft require a multi-system, multi-link, multi-hop
	approach. Thus air, ground and space based datalink providing		approach. Thus air, ground and space-based datalink providing
	technologies will have to operate seamlessly together to cope with		technologies will have to operate seamlessly together to cope with
	the increasing needs of data exchange between aircraft, air traffic		the increasing needs of data exchange between aircraft, air traffic
	controller, airport infrastructure, airlines, air network service		controller, airport infrastructure, airlines, air network service
	providers (ANSPs) and so forth. Thus making use of wireless		providers (ANSPs) and so forth. Thus, making use of wireless
	technologies is a must in tackling this enormous need for a worldwide		technologies is a MUST in tackling this enormous need for a worldwide
	digital aeronautical datalink infrastructure.		digital aeronautical datalink infrastructure.
	2.5. Requirements for RAW		2.5. Requirements for RAW
	Different safety levels need to be supported, from extremely safety		Different safety levels need to be supported, from extremely safety
	critical ones requiring low latency, such as a WAKE warning - a		critical ones requiring low latency, such as a WAKE warning - a
	warning that two aircraft come dangerously close to each other - and		warning that two aircraft come dangerously close to each other - and
	high resiliency, to less safety critical ones requiring low-medium		high resiliency, to less safety critical ones requiring low-medium
	latency for services such as WXGRAPH - graphical weather data.		latency for services such as WXGRAPH - graphical weather data.
	skipping to change at page 19, line 37 ¶		skipping to change at page 19, line 37 ¶
	The authors would like to thank Toerless Eckert, Xavi Vilajosana		The authors would like to thank Toerless Eckert, Xavi Vilajosana
	Guillen and Rute Sofia for their valuable comments on previous		Guillen and Rute Sofia for their valuable comments on previous
	versions of this document.		versions of this document.
	The work of Carlos J. Bernardos in this draft has been partially		The work of Carlos J. Bernardos in this draft has been partially
	supported by the H2020 5Growth (Grant 856709) and 5G-DIVE projects		supported by the H2020 5Growth (Grant 856709) and 5G-DIVE projects
	(Grant 859881).		(Grant 859881).
	13. Informative References		13. Informative References
			[ACI19] Airports Council International (ACI), "Annual World
			Aitport Traffic Report 2019", November 2019,
			<https://store.aci.aero/product/annual-world-airport-
			traffic-report-2019/>.
	[disney-VIP]		[disney-VIP]
	Wired, "Disney's $1 Billion Bet on a Magical Wristband",		Wired, "Disney's $1 Billion Bet on a Magical Wristband",
	March 2015,		March 2015,
	<https://www.wired.com/2015/03/disney-magicband/>.		<https://www.wired.com/2015/03/disney-magicband/>.
	[EIP] http://www.odva.org/, "EtherNet/IP provides users with the		[EIP] http://www.odva.org/, "EtherNet/IP provides users with the
	network tools to deploy standard Ethernet technology (IEEE		network tools to deploy standard Ethernet technology (IEEE
	802.3 combined with the TCP/IP Suite) for industrial		802.3 combined with the TCP/IP Suite) for industrial
	automation applications while enabling Internet and		automation applications while enabling Internet and
	enterprise connectivity data anytime, anywhere.",		enterprise connectivity data anytime, anywhere.",
	<http://www.odva.org/Portals/0/Library/		<http://www.odva.org/Portals/0/Library/
	Publications_Numbered/		Publications_Numbered/
	PUB00138R3_CIP_Adv_Tech_Series_EtherNetIP.pdf>.		PUB00138R3_CIP_Adv_Tech_Series_EtherNetIP.pdf>.
	[EURO20] EUROCONTROL, "EUROCONTROL's Challenges of Growth 2018
	Study Report", 2018, <https://www.eurocontrol.int/sites/de
	fault/files/content/documents/officialdocuments/reports/
	challenges-of-growth-2018.pdf>.
	[FAA20] U.S. Department of Transportation Federal Aviation		[FAA20] U.S. Department of Transportation Federal Aviation
	Administration (FAA), "Next Generation Air Transportation		Administration (FAA), "Next Generation Air Transportation
	System", 2019, <https://www.faa.gov/nextgen/ >.		System", 2019, <https://www.faa.gov/nextgen/ >.
	[I-D.ietf-6tisch-architecture]		[I-D.ietf-6tisch-architecture]
	Thubert, P., "An Architecture for IPv6 over the TSCH mode		Thubert, P., "An Architecture for IPv6 over the TSCH mode
	of IEEE 802.15.4", draft-ietf-6tisch-architecture-29 (work		of IEEE 802.15.4", draft-ietf-6tisch-architecture-30 (work
	in progress), August 2020.		in progress), November 2020.
	[I-D.ietf-detnet-security]		[I-D.ietf-detnet-security]
	Grossman, E., Mizrahi, T., and A. Hacker, "Deterministic		Grossman, E., Mizrahi, T., and A. Hacker, "Deterministic
	Networking (DetNet) Security Considerations", draft-ietf-		Networking (DetNet) Security Considerations", draft-ietf-
	detnet-security-12 (work in progress), October 2020.		detnet-security-13 (work in progress), December 2020.
	[I-D.maeurer-raw-ldacs]		[I-D.ietf-raw-ldacs]
	Maeurer, N., Graeupl, T., and C. Schmitt, "L-band Digital		Maeurer, N., Graeupl, T., and C. Schmitt, "L-band Digital
	Aeronautical Communications System (LDACS)", draft-		Aeronautical Communications System (LDACS)", draft-ietf-
	maeurer-raw-ldacs-06 (work in progress), October 2020.		raw-ldacs-06 (work in progress), January 2021.
	[I-D.thubert-raw-technologies]		[I-D.thubert-raw-technologies]
	Thubert, P., Cavalcanti, D., Vilajosana, X., Schmitt, C.,		Thubert, P., Cavalcanti, D., Vilajosana, X., Schmitt, C.,
	and J. Farkas, "Reliable and Available Wireless		and J. Farkas, "Reliable and Available Wireless
	Technologies", draft-thubert-raw-technologies-05 (work in		Technologies", draft-thubert-raw-technologies-05 (work in
	progress), May 2020.		progress), May 2020.
			[IAC20] Iacus, S., Natale, F., Santamaria, C., Spyratos, S., and
			V. Michele, "Estimating and projecting air passenger
			traffic during the COVID-19 coronavirus outbreak and its
			socio- economic impact", Safety Science 129 (2020)
			104791 , 2020.
			[IAT20] International Air Transport Association (IATA), "Economic
			Performance of the Airline Industry", November 2020,
			<https://www.iata.org/en/iata-repository/publications/
			economic-reports/airline-industry-economic-performance---
			november-2020---report/>.
	[ICAO18] International Civil Aviation Organization (ICAO), "L-Band		[ICAO18] International Civil Aviation Organization (ICAO), "L-Band
	Digital Aeronautical Communication System (LDACS)",		Digital Aeronautical Communication System (LDACS)",
	International Standards and Recommended Practices Annex 10		International Standards and Recommended Practices Annex 10
	- Aeronautical Telecommunications, Vol. III -		- Aeronautical Telecommunications, Vol. III -
	Communication Systems , 2018.		Communication Systems , 2018.
	[IEEE802.1TSN]		[IEEE802.1TSN]
	IEEE standard for Information Technology, "IEEE		IEEE standard for Information Technology, "IEEE
	802.1AS-2011 - IEEE Standard for Local and Metropolitan		802.1AS-2011 - IEEE Standard for Local and Metropolitan
	Area Networks - Timing and Synchronization for Time-		Area Networks - Timing and Synchronization for Time-
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