< draft-ietf-raw-ldacs-01.txt		draft-ietf-raw-ldacs-02.txt >
	RAW N. Maeurer, Ed.		RAW N. Maeurer, Ed.
	Internet-Draft T. Graeupl, Ed.		Internet-Draft T. Graeupl, Ed.
	Intended status: Informational German Aerospace Center (DLR)		Intended status: Informational German Aerospace Center (DLR)
	Expires: 25 April 2021 C. Schmitt, Ed.		Expires: 28 April 2021 C. Schmitt, Ed.
	Research Institute CODE, UniBwM		Research Institute CODE, UniBwM
	22 October 2020		25 October 2020
	L-band Digital Aeronautical Communications System (LDACS)		L-band Digital Aeronautical Communications System (LDACS)
	draft-ietf-raw-ldacs-01		draft-ietf-raw-ldacs-02
	Abstract		Abstract
	This document provides an overview of the architecture of the L-band		This document provides an overview of the architecture of the L-band
	Digital Aeronautical Communications System (LDACS), which provides a		Digital Aeronautical Communications System (LDACS), which provides a
	secure, scalable and spectrum efficient terrestrial data link for		secure, scalable and spectrum efficient terrestrial data link for
	civil aviation. LDACS is a scheduled, reliable multi-application		civil aviation. LDACS is a scheduled, reliable multi-application
	cellular broadband system with support for IPv6. LDACS shall provide		cellular broadband system with support for IPv6. LDACS shall provide
	a data link for IP network-based aircraft guidance. High reliability		a data link for IP network-based aircraft guidance. High reliability
	and availability for IP connectivity over LDACS are therefore		and availability for IP connectivity over LDACS are therefore
	skipping to change at page 1, line 39 ¶		skipping to change at page 1, line 39 ¶
	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 25 April 2021.		This Internet-Draft will expire on 28 April 2021.
	Copyright Notice		Copyright Notice
	Copyright (c) 2020 IETF Trust and the persons identified as the		Copyright (c) 2020 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 (https://trustee.ietf.org/		Provisions Relating to IETF Documents (https://trustee.ietf.org/
	license-info) in effect on the date of publication of this document.		license-info) in effect on the date of publication of this document.
	Please review these documents carefully, as they describe your rights		Please review these documents carefully, as they describe your rights
	skipping to change at page 31, line 30 ¶		skipping to change at page 31, line 30 ¶
	[RAW-USE-CASES]		[RAW-USE-CASES]
	Papadopoulos, G., Thubert, P., Theoleyre, F., and C.		Papadopoulos, G., Thubert, P., Theoleyre, F., and C.
	Bernardos, "RAW use cases", Work in Progress, Internet-		Bernardos, "RAW use cases", Work in Progress, Internet-
	Draft, draft-bernardos-raw-use-cases-04, 13 July 2020,		Draft, draft-bernardos-raw-use-cases-04, 13 July 2020,
	<https://tools.ietf.org/html/draft-bernardos-raw-use-		<https://tools.ietf.org/html/draft-bernardos-raw-use-
	cases-04>.		cases-04>.
	Appendix A. Selected Information from DO-350A		Appendix A. Selected Information from DO-350A
			This appendix includes the continuity, availability, and integrity
			requirements interesting for LDACS defined in [DO350A].
			The following terms are used here:
			CPDLC Controller Pilot Data Link Communication
			DT Nominal Time value for RSP
			ET Operational Time value for RCP
			FH Flight Hour
			MA Monitoring and Alerting criteria
			OT Operational Time value for RSP
			RCP Required Communication Performance
			RSP Required Surveillance Performance
			TT Nominal Time value for RCP
	+--------------+---------------+		+--------------+---------------+
	| | ECP 130 |		| | ECP 130 |
	+--------------+-------+-------+		+--------------+-------+-------+
	| Parameter | ET | TT95% |		| Parameter | ET | TT95% |
	+--------------+-------+-------+		+--------------+-------+-------+
	| Transaction | 130 | 67 |		| Transaction | 130 | 67 |
	| Time (sec) | | |		| Time (sec) | | |
	+--------------+-------+-------+		+--------------+-------+-------+
	| Continuity | 0.999 | 0.95 |		| Continuity | 0.999 | 0.95 |
	+--------------+-------+-------+		+--------------+-------+-------+
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