SIST EN 302 842-2 V1.4.1:2015
VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment;Part 2: General description and data link layer
VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment;Part 2: General description and data link layer
The present document applies to the following radio equipment types:
• Very High Frequency (VHF) Digital Link (VDL) Mode 4 aeronautical mobile (airborne) radio transmitters, transceivers and receivers for air-ground and air-air communications operating in the VHF band, using Gaussian Filtered Frequency Shift Keying (GFSK) modulation with 25 kHz channel spacing and capable of tuning to any of the 25 kHz channels from 112,000 MHz to 136,975 MHz as defined in ICAO VDL SARPs [i.2].
The present document provides part 2 of the technical specifications.
The present document is designed to ensure that equipment certified to it will be compatible with the relevant ICAO VDL SARPs [i.2] and ICAO VDL4 Technical Manual [i.1].
NOTE: In clause 5.1.4, Tertiary time, as described by the ICAO VDL4 Technical Manual [i.1], has not been included as a requirement in the present document due to the opinion of the ETSI Working Group that insufficient evidence was available to be able to verify correct operation of a "floating network" of stations operating on tertiary time.
Manufacturers should note that in future the tuning range for the transmitter and the receiver may cover any 25 kHz channel from 108,000 MHz to 111,975 MHz.
The present document applies to "aeronautical mobile (airborne and in some cases ground vehicles)" equipment which will hereinafter be referred to as "mobile" equipment.
The scope of the present document is limited to mobile stations. The equivalent specification for ground stations is ETSI EN 301 842 [i.5].
The VDL Mode 4 system provides digital communication exchanges between aircraft and ground based systems and other aircraft supporting surveillance and communication applications. The supported modes of communication include:
• broadcast and point-to-point communication;
• broadcast services including Automatic Dependent Surveillance - Broadcast (ADS-B), Traffic Information Service - Broadcast (TIS-B), Flight Information Service - Broadcast (FIS-B) capabilities and GNSS Augmentation Service - Broadcast (GNS-B);
• air-air and ground-air services;
• operation without ground infrastructure.
VDL Mode 4 is designed to be an Air/Ground subsystem of the Aeronautical Telecommunication Network (ATN) (see ICAO ATN SARPs [i.3]) using the AM(R)S band and it is organized according to the Open Systems Interconnection (OSI) model (defined by ISO). It provides reliable sub network services to the ATN system. Other networks can also be supported but have not been the focus of the present document.
The present document is derived from the standards and specifications in:
• ICAO VDL4 Technical Manual [i.1] produced under the auspices of the International Civil Aviation Organization (ICAO).
• Other relevant standards as defined in clause 2.
It is envisaged that manufacturers may provide equipment supporting:
• broadcast services only;
• point-to-point services only;
• both broadcast and point-to-point services.
Radijska oprema za digitalno povezavo VHF (VDL) zrak-tla in zrak-zrak, 4. način - Tehnične karakteristike in merilne metode za aeronavtično mobilno (letalsko) opremo - 2. del: Splošni opis in plast za podatkovne povezave
Ta dokument se uporablja za radijsko opremo naslednjih vrst:
• aeronavtične mobilne (letalske) radijske oddajnike, oddajnike-sprejemnike in sprejemnike za zelo visokofrekvenčno (VHF) digitalno povezavo (VDL) za komunikacije zrak-tla in zrak-zrak, 4. način, ki delujejo v pasu VHF z uporabo modulacije frekvenčnega premičnega kodiranja prek filtra Gaussian (GFSK) z razmikom 25 kHz med kanali in so zmožni uravnavati na katerem koli izmed kanalov 25 kHz od 112.000 MHz do 136.975 MHz, kot je opredeljeno v standardih in priporočenih praksah (SARP) [i.2] ICAO za digitalne povezave (VDL).
Ta dokument vsebuje 2. del tehničnih specifikacij.
Ta dokument zagotavlja, da bo oprema, ki bo certificirana v skladu z njim, združljiva z ustreznimi standardi (SARP) [i.2] ICAO za VDL in tehničnim priročnikom ICAO za VDL4 [i.1].
OPOMBA: Terciarni čas, kot je opisan v tehničnem priročniku ICAO za VDL4 [i.1], ni bil vključen kot zahteva v točki 5.1.4 tega dokumenta zaradi mnenja delovne skupine ETSI, da ni dovolj dokazov na voljo za preverjanje pravilnega delovanja »plavajočega omrežja« (floating network) postaj, ki delujejo na terciarni čas.
Proizvajalci naj bodo pozorni, da razpon uravnavanja za oddajnik in sprejemnik lahko v prihodnje zajema tudi kateri koli kanal 25 kHz od 108.000 MHz do 111.975 MHz.
Ta dokument se nanaša na »aeronavtično mobilno (letalska in v nekaterih primerih tudi kopenska vozila)« opremo, v nadaljnjem besedilu: »mobilna« oprema.
Področje uporabe tega dokumenta je omejeno na mobilne postaje. Enakovredna specifikacija za zemeljske postaje je ETSI EN 301 842 [i.5].
Sistem VDL, 4. način, omogoča izmenjavo podatkovne komunikacije med letalskim plovilom in talnimi sistemi ter drugimi letalskimi plovili, ki podpirajo nadzorne in komunikacijske aplikacije. Podprti načini komunikacije vključujejo:
• radiodifuzija in komunikacija točka-točka;
• radiodifuzijske storitve, vključno z avtomatskim odvisnim nadzorom – difuzijo (ADS-B), difuzijo nadzornih podatkov (TIS-B), difuzijo informacij za letalstvo (FIS-B) in storitvami izboljšav GNSS – difuzija (GNS-B);
• storitve zrak-zrak in tla-zrak;
• delovanje brez talne infrastrukture.
Sistem VDL, 4. način, je zasnovan kot podsistem zrak/tla aeronavtičnega telekomunikacijskega omrežja (ATN) (glej standard in priporočene specifikacije ICAO za ATN [i.3]), ki uporablja pas AM(R)S in je organiziran v skladu z modelom povezanih odprtih sistemov (OSI) (določen z ISO). Sistemu ATN zagotavlja zanesljive podomrežne storitve. Podprta so lahko tudi druga omrežja, na katera pa se ta dokument ne osredotoča.
Ta dokument izhaja iz naslednjih standardov in specifikacij, vključenih v:
• tehnične priročnike ICAO za VDL4 [i.1], ki jih je sestavila Mednarodna organizacija civilnega letalstva (ICAO);
• druge ustrezne standarde, ki so bili določeni v točki 2.
Predvideva se, da lahko proizvajalci zagotovijo opremo, ki podpira:
• izključno radiodifuzijske storitve;
• izključno storitve točka-točka;
• radiodifuzijske storitve in storitve točka-točka.
General Information
Standards Content (Sample)
Draft ETSI EN 302 842-2 V1.4.0 (2014-12)
EUROPEAN STANDARD
VHF air-ground and air-air Digital Link (VDL)
Mode 4 radio equipment;
Technical characteristics and methods of measurement
for aeronautical mobile (airborne) equipment;
Part 2: General description and data link layer
2 Draft ETSI EN 302 842-2 V1.4.0 (2014-12)
Reference
REN/AERO-00019-2
Keywords
aeronautical, digital, radio, testing, VHF
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
The present document can be downloaded from:
http://www.etsi.org
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
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Users of the present document should be aware that the document may be subject to revision or change of status.
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Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2014.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
3 Draft ETSI EN 302 842-2 V1.4.0 (2014-12)
Contents
Intellectual Property Rights . 8
Foreword . 8
Modal verbs terminology . 8
Introduction . 9
1 Scope . 10
2 References . 12
2.1 Normative references . 12
2.2 Informative references . 12
3 Definitions and abbreviations . 13
3.1 Definitions . 13
3.1.1 Basic reference model definitions . 13
3.1.2 Service conventions definitions . 13
3.1.3 General definitio ns . 13
3.1.4 Definition of bit order . 17
3.2 Abbreviations . 17
4 General description of VDL Mode 4 mobile station link layer . 19
4.1 Overview of VDL Mode 4 . 19
4.1.1 Void . 19
4.1.2 Relationship to OSI reference model . 19
4.1.3 VDL Mode 4 services . 21
4.1.4 ADS-B function . 21
4.1.5 Operational scenarios . 22
4.1.6 VDL Mode 4 fundamentals . 22
4.1.7 Possible configuration of airborne equipment . 23
4.1.8 Classes of equipment . 25
4.1.9 Transceiver cross-links . 25
4.1.10 Overall structure of specifications for VDL Mode 4 . 26
4.1.11 Equipment performance verification . 27
5 Minimum performance specification under standard test conditions . 28
5.1 MAC sublayer . 28
5.1.1 Services . 28
5.1.2 MAC sublayer services . 28
5.1.3 MAC sublayer parameters . 29
5.1.3.1 General . 29
5.1.3.2 Parameter M1 (number of slots per superframe) . 29
5.1.3.3 Parameter M2_inc and M2_limit (MAC layer control parameters for network entry) . 29
5.1.3.4 Inspection of m2 filter following transceiver failure . 30
5.1.4 Time synchronization . 30
5.1.4.1 Primary . 30
5.1.4.2 Secondary . 30
5.1.4.3 Alignment to UTC second . 31
5.1.4.4 Data quality level . 31
5.1.5 Slot idle/busy notification . 31
5.1.5.1 Slot idle detection . 31
5.1.5.2 Slot busy detection . 31
5.1.5.3 Slot occupied detection . 31
5.1.5.4 Signal level indication . 31
5.1.6 Transmission processing . 32
5.1.7 Received transmission processing . 32
5.2 VSS sublayer . 32
5.2.1 Services . 33
5.2.1a Multiple access . 33
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4 Draft ETSI EN 302 842-2 V1.4.0 (2014-12)
5.2.1.1 Error detection . 33
5.2.1.2 Channel congestion . 33
5.2.2 Burst format . 34
5.2.2.1 VSS burst structure . 34
5.2.2.2 Version number . 35
5.2.2.3 Source address . 35
5.2.2.4 Message ID . 35
5.2.2.5 Information field . 36
5.2.2.6 Reservation fields . 36
5.2.2.7 Autonomous/directed flag . 36
5.2.3 VSS sublayer parameters . 37
5.2.3.1 General . 37
5.2.3.2 Parameter VS1 (number of ground quarantined slots) . 37
5.2.3.3 Parameter VS2 (minimum CCI performance) . 38
5.2.3.4 Parameter VS4 (quarantine slot re-use range) . 38
5.2.3.5 Parameter VS5 (maximum burst length) . 38
5.2.4 VSS quality of service parameters . 38
5.2.4.1 General . 38
5.2.4.2 Parameter Q1 (priority) . 39
5.2.4.3 Parameters Q2a to Q2d (slot selection range constraint for level n) . 39
5.2.4.4 Parameter Q3 (replace queued data) . 40
5.2.4.5 Parameter Q4 (number of available slots) . 40
5.2.5 Received transmission processing . 41
5.2.6 Reserved access protocol specification . 41
5.2.6.1 Reservation table . 41
5.2.6.2 Selecting slots for transmission or reservation . 42
5.2.6.3 Reserved transmissions . 43
5.2.6.4 Reservation conflicts . 44
5.2.6.5 Transmission conflicts for mobile stations . 44
5.2.7 Random access protocol specification . 45
5.2.7.1 General . 45
5.2.7.2 Random access parameters. 45
5.2.7.3 Random access procedures. 47
5.2.8 Void . 48
5.2.9 Null reservation protocol specification . 48
5.2.9.1 Null reservation burst format . 48
5.2.10 Periodic broadcast protocol specification . 48
5.2.10.1 Periodic broadcast reservation burst format . 48
5.2.10.2 Periodic broadcast timers . 49
5.2.10.3 Periodic broadcast parameters . 49
5.2.10.4 Periodic broadcast reception procedures . 50
5.2.10.5 Periodic broadcast transmission procedures . 51
5.2.11 Incremental broadcast protocol specification . 54
5.2.11.1 Incremental broadcast reservation burst format . 54
5.2.11.2 Incremental broadcast parameters . 54
5.2.11.3 Incremental broadcast reception procedures . 55
5.2.11.4 Incremental broadcast transmission procedures . 55
5.2.12 Combined periodic broadcast and incremental broadcast protocol specification . 56
5.2.12.1 Combined periodic broadcast and incremental broadcast reservation burst. 56
5.2.13 Big negative dither (BND) broadcast protocol specifications . 56
5.2.13.1 BND reservation burst format . 56
5.2.13.2 BND broadcast parameters. 57
5.2.13.3 BND broadcast reception procedures . 57
5.2.13.4 BND broadcast transmission procedures . 57
5.2.14 Unicast request protocol specification . 57
5.2.14.1 Unicast request reservation burst format . 57
5.2.14.1a Unicast request parameters. 58
5.2.14.2 Unicast request reception procedures . 59
5.2.14.3 Unicast request transmission procedures . 60
5.2.15 Information transfer request protocol specification . 60
5.2.15.1 Information transfer request reservation burst format . 60
5.2.15.2 Information transfer request reception procedures . 61
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5 Draft ETSI EN 302 842-2 V1.4.0 (2014-12)
5.2.16 Directed request protocol specification. 62
5.2.16.1 Directed request reservation burst format . 62
5.2.16.2 Directed request parameters . 65
5.2.16.3 Directed request reception procedures . 66
5.2.16.4 Directed request transmission procedures . 67
5.2.16.5 Directed request response procedures . 68
5.2.17 Block reservation protocols specification . 69
5.2.17.1 Superframe block reservation burst format . 69
5.2.17.2 Second frame block reservation burst format . 70
5.2.17.3 Void. 71
5.2.17.4 Superframe block reservation reception procedures . 71
5.2.17.5 Second frame block reservation parameters . 73
5.2.17.6 Second frame block reservation reception procedures . 73
5.2.17.7 Void. 73
5.2.17.7a Procedures for responding to a rebroadcast request for superframe block reservation . 73
5.2.18 Response protocol specification . 74
5.2.18.1 Response burst format . 74
5.2.19 General request protocol specification . 74
5.2.19.1 General request burst format . 74
5.2.19.2 General request procedures . 75
5.2.20 General response protocol specification . 75
5.2.20.1 General response burst format. 75
5.2.20.2 General response procedures . 77
5.2.21 Retransmission procedures . 77
5.3 DLS sublayer . 78
5.3.1 Services . 78
5.3.1.1 General . 78
5.3.1.2 Data transfer . 78
5.3.1.3 Station address encoding . 78
5.3.1.4 DLS burst formats . 80
5.3.2 DLS system parameters . 81
5.3.2.1 Parameter ND4 (maximum length of a UDATA burst) . 81
5.3.3 DLS procedures . 81
5.3.3.1 Broadcast . 81
5.3.3.2 DLS not supported . 81
5.3.3.3 User data packet reception . 82
5.3.3.4 CTRL DLPDU . 82
5.4 Link Management Entity (LME) sublayer . 82
5.4.1 Services . 82
5.4.2 Synchronization burst format . 82
5.4.2.1 General . 82
5.4.2.2 Fixed and variable data fields. 82
5.4.2.3 Fixed data field format . 83
5.4.2.4 Variable data field format . 86
5.4.2.5 Synchronization burst request . 86
5.4.2.6 Broadcast link management burst . 86
5.4.3 Control (CTRL) parameter formats . 87
5.4.3.1 Encoding . 87
5.4.3.2 VDL Mode 4 parameter identification . 87
5.4.3.3 Ground-initiated modification parameters . 88
5.4.3.4 Ground-initiated information parameters . 91
5.4.3a LME timers and parameters . 93
5.4.3a.1 General . 93
5.4.3a.2 Counter L1 (maximum number of missed reservations) and Timer TL3 (inter miss timer) . 94
5.4.4 LME procedures . 94
5.4.4.1 Synchronization burst procedures . 94
5.4.4.2 Peer Entity Contact Table (PECT) . 96
5.4.4.3 Network entry protocol specifications . 97
5.4.5 Additional material for ADS-B applications . 103
5.4.5.1 Information field formats . 103
5.4.5.2 ADS-B request format. 104
5.5 Void . 104
ETSI
6 Draft ETSI EN 302 842-2 V1.4.0 (2014-12)
5.6 Definitions for Compact Position Reporting . 104
5.6.1 Introduction. 104
5.6.2 Parameter symbols, data types, constants and variables . 105
5.6.2.1 Parameter symbols . 105
5.6.2.2 Data types . 105
5.6.2.3 Constants . 105
5.6.2.4 Variables . 105
5.6.2.5 Functions . 105
5.6.2.6 Patch constants . 105
5.6.3 Fixed data field position encoding . 105
5.6.4 Fixed data field position local decoding . 105
5.6.5 Fixed data field position global decoding . 105
5.6.6 Position Report Processing . 105
6 General design requirements . 105
6.1 Controls and indicators . 105
6.2 Warm up . 106
6.3 Airworthiness . 106
6.4 Intended function . 106
6.5 International Telecommunications Union regulations . 106
6.6 Fire protection . 106
6.7 Operation of controls . 106
6.8 Accessibility of controls . 106
6.9 Effects of tests . 106
6.10 Failure of the VDL Mode 4 equipment . 106
6.11 Software management . 106
6.12 Transceiver configuration . 106
6.13 Provision for multiple redundant VDL4 transceivers . 106
6.14 Reception capability . 107
6.15 Transmission capability . 107
6.16 Monitoring of proper operation . 107
6.17 Power-up self test . 107
7 Protocol test procedures . 107
7.1 General . 107
7.1.1 Input voltage . 107
7.1.2 Power input frequency . 107
7.1.3 Adjustment of equipment . 107
7.1.4 Equipment configuration . 107
7.1.5 Test equipment precautions . 107
7.1.6 Ambient conditions . 108
7.1.7 Connected loads . 108
7.2 Required test rig . 108
7.3 Protocol test-suite description methodology . 110
7.4 Detailed protocol test procedures . 110
7.4.1 Test-suite overview . 110
7.4.2 Declarations . 117
7.4.3 Constraints . 117
7.4.3.1 Abbreviations . 117
7.4.3.1.1 Subfield mnemonics . 117
7.4.3.1.2 Special characters used in the subfield definitions . 118
7.4.3.1.3 Station addresses and positions . 118
7.4.3.1.4 Tables of values for use in CPR test cases . 119
7.4.3.1.5 Tables of values for use in content checking test cases . 131
7.4.3.1.6 VDL4 burst formats . 133
7.4.3.2 Test cases . 153
7.4.3.2.1 Test case macros . 154
7.4.3.2.2 Test case descriptions . 157
Annex A (informative): Cross reference matrix . 381
Annex B (informative): Description of ISO/IEC 9646 test methodology . 407
ETSI
7 Draft ETSI EN 302 842-2 V1.4.0 (2014-12)
B.1 Overview of the structure of the ISO/IEC 9646 test suites . 407
B.2 The test case description. 407
B.3 The queue action . 409
B.4 The repeat construct . 409
B.5 Macro definitions . 410
B.6 Test case naming . 410
Annex C (informative): Bibliography . 411
History . 412
ETSI
8 Draft ETSI EN 302 842-2 V1.4.0 (2014-12)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://ipr.etsi.org).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This draft European Standard (EN) has been produced by ETSI Technical Committee Aeronautics (AERO), and is now
submitted for the combined Public Enquiry and Vote phase of the ETSI standards EN Approval Procedure.
The present document is part 2 of a multi-part deliverable covering the VHF air-ground and air-air Digital Link (VDL)
Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne)
equipment, as identified below:
Part 1: "Physical layer";
Part 2: "General description and data link layer";
Part 3: "Additional broadcast aspects";
Part 4: "Point-to-point functions".
The present document is accompanied by an equivalent ground-based standard, ETSI EN 301 842 [i.5] parts 1 to 5,
covering the VHF air-ground Data Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of
measurement for ground-based equipment.
NOTE: Minimum Operational Performance Specifications (MOPS) are also being developed for VDL Mode 4.
EUROCAE have previously published Interim MOPS for VDL Mode 4 [i.6] which are a sub set of
ETSI EN 302 842-1 [2], ETSI EN 302 842-2 (the present document) , ETSI EN 302 842-3 [6] and
ETSI EN 302 842-4 [7]. ETSI EN 302 842-1 [2], ETSI EN 302 842-2 (the present document),
ETSI EN 302 842-3 [6] and ETSI EN 302 842-4 [7] comply with the requirements of EC Mandate
M/318 [i.7].
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "may not", "need", "need not", "will",
"will not", "can" and "cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms
for the expression of provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
9 Draft ETSI EN 302 842-2 V1.4.0 (2014-12)
Introduction
The present document states the technical specifications for Very High Frequency (VHF) Digital Link (VDL) Mode 4
aeronautical mobile (airborne) radio transmitters, transceivers and receivers for air-ground and air-air communications
operating in the VHF band, using Gaussian Filtered Frequency Shift Keying (GFSK) modulation with 25 kHz channel
spacing and capable of tuning to any of the 25 kHz channels from 112,000 MHz to 136,975 MHz as defined in ICAO
VDL SARPs [i.2].
The present document may be used to produce tests for the assessment of the performance of the equipment. The
performance of the equipment submitted for type testing should be representative of the performance of the
corresponding production model.
The present document has been written on the assumption that:
• the type test measurements will be performed only once, in an accredited test laboratory and the measurements
accepted by the various authorities in order to grant type approval;
• if equipment available on the market is required to be checked it will be tested in accordance w
...
EUROPEAN STANDARD
VHF air-ground and air-air Digital Link (VDL)
Mode 4 radio equipment;
Technical characteristics and methods of measurement
for aeronautical mobile (airborne) equipment;
Part 2: General description and data link layer
2 ETSI EN 302 842-2 V1.4.1 (2015-04)
Reference
REN/AERO-00019-2
Keywords
aeronautical, digital, radio, testing, VHF
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2015.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
3 ETSI EN 302 842-2 V1.4.1 (2015-04)
Contents
Intellectual Property Rights . 8
Foreword . 8
Modal verbs terminology . 8
Introduction . 9
1 Scope . 10
2 References . 12
2.1 Normative references . 12
2.2 Informative references . 12
3 Definitions and abbreviations . 13
3.1 Definitions . 13
3.1.1 Basic reference model definitions . 13
3.1.2 Service conventions definitions . 13
3.1.3 General definitio ns . 13
3.1.4 Definition of bit order . 17
3.2 Abbreviations . 17
4 General description of VDL Mode 4 mobile station link layer . 18
4.1 Overview of VDL Mode 4 . 18
4.1.1 Void . 19
4.1.2 Relationship to OSI reference model . 19
4.1.3 VDL Mode 4 services . 21
4.1.4 ADS-B function . 21
4.1.5 Operational scenarios . 22
4.1.6 VDL Mode 4 fundamentals . 22
4.1.7 Possible configuration of airborne equipment . 23
4.1.8 Classes of equipment . 25
4.1.9 Transceiver cross-links . 25
4.1.10 Overall structure of specifications for VDL Mode 4 . 26
4.1.11 Equipment performance verification . 27
5 Minimum performance specification under standard test conditions . 28
5.1 MAC sublayer . 28
5.1.1 Services . 28
5.1.2 MAC sublayer services . 28
5.1.3 MAC sublayer parameters . 28
5.1.3.1 General . 28
5.1.3.2 Parameter M1 (number of slots per superframe) . 29
5.1.3.3 Parameter M2_inc and M2_limit (MAC layer control parameters for network entry) . 29
5.1.3.4 Inspection of m2 filter following transceiver failure . 30
5.1.4 Time synchronization . 30
5.1.4.1 Primary . 30
5.1.4.2 Secondary . 30
5.1.4.3 Alignment to UTC second . 31
5.1.4.4 Data quality level . 31
5.1.5 Slot idle/busy notification . 31
5.1.5.1 Slot idle detection . 31
5.1.5.2 Slot busy detection . 31
5.1.5.3 Slot occupied detection . 31
5.1.5.4 Signal level indication . 31
5.1.6 Transmission processing . 32
5.1.7 Received transmission processing . 32
5.2 VSS sublayer . 32
5.2.1 Services . 32
5.2.1a Multiple access . 32
5.2.1.1 Error detection . 33
5.2.1.2 Channel congestion . 33
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4 ETSI EN 302 842-2 V1.4.1 (2015-04)
5.2.2 Burst format . 33
5.2.2.1 VSS burst structure . 33
5.2.2.2 Version number . 34
5.2.2.3 Source address . 34
5.2.2.4 Message ID . 34
5.2.2.5 Information field . 35
5.2.2.6 Reservation fields . 35
5.2.2.7 Autonomous/directed flag . 36
5.2.3 VSS sublayer parameters . 36
5.2.3.1 General . 36
5.2.3.2 Parameter VS1 (number of ground quarantined slots) . 37
5.2.3.3 Parameter VS2 (minimum CCI performance) . 37
5.2.3.4 Parameter VS4 (quarantine slot re-use range) . 38
5.2.3.5 Parameter VS5 (maximum burst length) . 38
5.2.4 VSS quality of service parameters . 38
5.2.4.1 General . 38
5.2.4.2 Parameter Q1 (priority) . 38
5.2.4.3 Parameters Q2a to Q2d (slot selection range constraint for level n) . 39
5.2.4.4 Parameter Q3 (replace queued data) . 40
5.2.4.5 Parameter Q4 (number of available slots) . 40
5.2.5 Received transmission processing . 40
5.2.6 Reserved access protocol specification . 41
5.2.6.1 Reservation table . 41
5.2.6.2 Selecting slots for transmission or reservation . 42
5.2.6.3 Reserved transmissions . 43
5.2.6.4 Reservation conflicts . 44
5.2.6.5 Transmission conflicts for mobile stations . 44
5.2.7 Random access protocol specification . 45
5.2.7.1 General . 45
5.2.7.2 Random access parameters. 45
5.2.7.3 Random access procedures. 47
5.2.8 Void . 47
5.2.9 Null reservation protocol specification . 47
5.2.9.1 Null reservation burst format . 47
5.2.10 Periodic broadcast protocol specification . 48
5.2.10.1 Periodic broadcast reservation burst format . 48
5.2.10.2 Periodic broadcast timers . 49
5.2.10.3 Periodic broadcast parameters . 49
5.2.10.4 Periodic broadcast reception procedures . 50
5.2.10.5 Periodic broadcast transmission procedures . 51
5.2.11 Incremental broadcast protocol specification . 54
5.2.11.1 Incremental broadcast reservation burst format . 54
5.2.11.2 Incremental broadcast parameters . 54
5.2.11.3 Incremental broadcast reception procedures . 55
5.2.11.4 Incremental broadcast transmission procedures . 55
5.2.12 Combined periodic broadcast and incremental broadcast protocol specification . 56
5.2.12.1 Combined periodic broadcast and incremental broadcast reservation burst. 56
5.2.13 Big negative dither (BND) broadcast protocol specifications . 56
5.2.13.1 BND reservation burst format . 56
5.2.13.2 BND broadcast parameters. 57
5.2.13.3 BND broadcast reception procedures . 57
5.2.13.4 BND broadcast transmission procedures . 57
5.2.14 Unicast request protocol specification . 57
5.2.14.1 Unicast request reservation burst format . 57
5.2.14.1a Unicast request parameters. 58
5.2.14.2 Unicast request reception procedures . 59
5.2.14.3 Unicast request transmission procedures . 60
5.2.15 Information transfer request protocol specification . 60
5.2.15.1 Information transfer request reservation burst format . 60
5.2.15.2 Information transfer request reception procedures . 61
5.2.16 Directed request protocol specification. 62
5.2.16.1 Directed request reservation burst format . 62
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5.2.16.2 Directed request parameters . 65
5.2.16.3 Directed request reception procedures . 66
5.2.16.4 Directed request transmission procedures . 67
5.2.16.5 Directed request response procedures . 68
5.2.17 Block reservation protocols specification . 69
5.2.17.1 Superframe block reservation burst format . 69
5.2.17.2 Second frame block reservation burst format . 70
5.2.17.3 Void. 71
5.2.17.4 Superframe block reservation reception procedures . 71
5.2.17.5 Second frame block reservation parameters . 73
5.2.17.6 Second frame block reservation reception procedures . 73
5.2.17.7 Void. 73
5.2.17.7a Procedures for responding to a rebroadcast request for superframe block reservation . 73
5.2.18 Response protocol specification . 73
5.2.18.1 Response burst format . 73
5.2.19 General request protocol specification . 74
5.2.19.1 General request burst format . 74
5.2.19.2 General request procedures . 75
5.2.20 General response protocol specification . 75
5.2.20.1 General response burst format. 75
5.2.20.2 General response procedures . 77
5.2.21 Retransmission procedures . 77
5.3 DLS sublayer . 77
5.3.1 Services . 77
5.3.1.1 General . 77
5.3.1.2 Data transfer . 77
5.3.1.3 Station address encoding . 78
5.3.1.4 DLS burst formats . 79
5.3.2 DLS system parameters . 80
5.3.2.1 Parameter ND4 (maximum length of a UDATA burst) . 80
5.3.3 DLS procedures . 80
5.3.3.1 Broadcast . 80
5.3.3.2 DLS not supported . 81
5.3.3.3 User data packet reception . 81
5.3.3.4 CTRL DLPDU . 81
5.4 Link Management Entity (LME) sublayer . 81
5.4.1 Services . 81
5.4.2 Synchronization burst format . 81
5.4.2.1 General . 81
5.4.2.2 Fixed and variable data fields. 82
5.4.2.3 Fixed data field format . 82
5.4.2.4 Variable data field format . 85
5.4.2.5 Synchronization burst request . 85
5.4.2.6 Broadcast link management burst . 85
5.4.3 Control (CTRL) parameter formats . 86
5.4.3.1 Encoding . 86
5.4.3.2 VDL Mode 4 parameter identification . 86
5.4.3.3 Ground-initiated modification parameters . 87
5.4.3.4 Ground-initiated information parameters . 90
5.4.3a LME timers and parameters . 92
5.4.3a.1 General . 92
5.4.3a.2 Counter L1 (maximum number of missed reservations) and Timer TL3 (inter miss timer) . 93
5.4.4 LME procedures . 93
5.4.4.1 Synchronization burst procedures . 93
5.4.4.2 Peer Entity Contact Table (PECT) . 95
5.4.4.3 Network entry protocol specifications . 96
5.4.5 Additional material for ADS-B applications . 102
5.4.5.1 Information field formats . 102
5.4.5.2 ADS-B request format. 103
5.5 Void . 103
5.6 Definitions for Compact Position Reporting . 103
5.6.1 Introduction. 103
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6 ETSI EN 302 842-2 V1.4.1 (2015-04)
5.6.2 Parameter symbols, data types, constants and variables . 103
5.6.2.1 Parameter symbols . 103
5.6.2.2 Data types . 104
5.6.2.3 Constants . 104
5.6.2.4 Variables . 104
5.6.2.5 Functions . 104
5.6.2.6 Patch constants . 104
5.6.3 Fixed data field position encoding . 104
5.6.4 Fixed data field position local decoding . 104
5.6.5 Fixed data field position global decoding . 104
5.6.6 Position Report Processing . 104
6 General design requirements . 104
6.1 Controls and indicators . 104
6.2 Warm up . 104
6.3 Airworthiness . 104
6.4 Intended function . 104
6.5 International Telecommunications Union regulations . 104
6.6 Fire protection . 105
6.7 Operation of controls . 105
6.8 Accessibility of controls . 105
6.9 Effects of tests . 105
6.10 Failure of the VDL Mode 4 equipment . 105
6.11 Software management . 105
6.12 Transceiver configuration . 105
6.13 Provision for multiple redundant VDL4 transceivers . 105
6.14 Reception capability . 105
6.15 Transmission capability . 105
6.16 Monitoring of proper operation . 105
6.17 Power-up self test . 105
7 Protocol test procedures . 105
7.1 General . 105
7.1.1 Input voltage . 105
7.1.2 Power input frequency . 106
7.1.3 Adjustment of equipment . 106
7.1.4 Equipment configuration . 106
7.1.5 Test equipment precautions . 106
7.1.6 Ambient conditions . 106
7.1.7 Connected loads . 106
7.2 Required test rig . 106
7.3 Protocol test-suite description methodology . 109
7.4 Detailed protocol test procedures . 109
7.4.1 Test-suite overview . 109
7.4.2 Declarations . 115
7.4.3 Constraints . 115
7.4.3.1 Abbreviations . 115
7.4.3.1.1 Subfield mnemonics . 115
7.4.3.1.2 Special characters used in the subfield definitions . 116
7.4.3.1.3 Station addresses and positions . 116
7.4.3.1.4 Tables of values for use in CPR test cases . 118
7.4.3.1.5 Tables of values for use in content checking test cases . 129
7.4.3.1.6 VDL4 burst formats . 131
7.4.3.2 Test cases . 151
7.4.3.2.1 Test case macros . 152
7.4.3.2.2 Test case descriptions . 155
Annex A (informative): Cross reference matrix . 379
Annex B (informative): Description of ISO/IEC 9646 test methodology. 405
B.1 Overview of the structure of the ISO/IEC 9646 test suites . 405
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7 ETSI EN 302 842-2 V1.4.1 (2015-04)
B.2 The test case description. 405
B.3 The queue action . 407
B.4 The repeat construct . 407
B.5 Macro definitions . 408
B.6 Test case naming . 408
Annex C (informative): Bibliography . 409
History . 410
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8 ETSI EN 302 842-2 V1.4.1 (2015-04)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://ipr.etsi.org).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (EN) has been produced by ETSI Technical Committee Aeronautics (AERO).
The present document is part 2 of a multi-part deliverable covering the VHF air-ground and air-air Digital Link (VDL)
Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne)
equipment, as identified below:
Part 1: "Physical layer";
Part 2: "General description and data link layer";
Part 3: "Additional broadcast aspects";
Part 4: "Point-to-point functions".
The present document is accompanied by an equivalent ground-based standard, ETSI EN 301 842 [i.5] parts 1 to 5,
covering the VHF air-ground Data Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of
measurement for ground-based equipment.
NOTE: Minimum Operational Performance Specifications (MOPS) are also being developed for VDL Mode 4.
EUROCAE have previously published Interim MOPS for VDL Mode 4 [i.6] which are a sub set of
ETSI EN 302 842-1 [2], ETSI EN 302 842-2 (the present document) , ETSI EN 302 842-3 [6] and
ETSI EN 302 842-4 [7]. ETSI EN 302 842-1 [2], ETSI EN 302 842-2 (the present document),
ETSI EN 302 842-3 [6] and ETSI EN 302 842-4 [7] comply with the requirements of EC Mandate
M/318 [i.7].
National transposition dates
Date of adoption of this EN: 6 April 2015
Date of latest announcement of this EN (doa): 31 July 2015
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 January 2016
Date of withdrawal of any conflicting National Standard (dow): 31 January 2017
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
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9 ETSI EN 302 842-2 V1.4.1 (2015-04)
Introduction
The present document states the technical specifications for Very High Frequency (VHF) Digital Link (VDL) Mode 4
aeronautical mobile (airborne) radio transmitters, transceivers and receivers for air-ground and air-air communications
operating in the VHF band, using Gaussian Filtered Frequency Shift Keying (GFSK) modulation with 25 kHz channel
spacing and capable of tuning to any of the 25 kHz channels from 112,000 MHz to 136,975 MHz as defined in ICAO
VDL SARPs [i.2].
The present document may be used to produce tests for the assessment of the performance of the equipment. The
performance of the equipment submitted for type testing should be representative of the performance of the
corresponding production model.
The present document has been written on the assumption that:
• the type test measurements will be performed only once, in an accredited test laboratory and the measurements
accepted by the various authorities in order to grant type approval;
• if equipment available on the market is required to be checked it will be tested in accordance with the methods
of measurement specified in the present document or a documented alternative approved by the certifying
author
...
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment;Part 2: General description and data link layer49.090On-board equipment and instruments35.100.20Podatkovni povezovalni slojData link layer33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:EN 302 842-2 V1.4.1SIST EN 302 842-2 V1.4.1:2015en,fr,de01-oktober-2015SIST EN 302 842-2 V1.4.1:2015SLOVENSKI
STANDARD
EUROPEAN STANDARD SIST EN 302 842-2 V1.4.1:2015
ETSI ETSI EN 302 842-2 V1.4.1 (2015-04) 2
Reference REN/AERO-00019-2 Keywords aeronautical, digital, radio, testing, VHF ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00
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Important notice The present document can be downloaded from: http://www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: https://portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2015. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. SIST EN 302 842-2 V1.4.1:2015
ETSI ETSI EN 302 842-2 V1.4.1 (2015-04) 3 Contents Intellectual Property Rights . 8 Foreword . 8 Modal verbs terminology . 8 Introduction . 9 1 Scope . 10 2 References . 12 2.1 Normative references . 12 2.2 Informative references . 12 3 Definitions and abbreviations . 13 3.1 Definitions . 13 3.1.1 Basic reference model definitions . 13 3.1.2 Service conventions definitions . 13 3.1.3 General definitions . 13 3.1.4 Definition of bit order . 17 3.2 Abbreviations . 17 4 General description of VDL Mode 4 mobile station link layer . 18 4.1 Overview of VDL Mode 4 . 18 4.1.1 Void . 19 4.1.2 Relationship to OSI reference model . 19 4.1.3 VDL Mode 4 services . 21 4.1.4 ADS-B function . 21 4.1.5 Operational scenarios . 22 4.1.6 VDL Mode 4 fundamentals . 22 4.1.7 Possible configuration of airborne equipment . 23 4.1.8 Classes of equipment . 25 4.1.9 Transceiver cross-links . 25 4.1.10 Overall structure of specifications for VDL Mode 4 . 26 4.1.11 Equipment performance verification . 27 5 Minimum performance specification under standard test conditions . 28 5.1 MAC sublayer . 28 5.1.1 Services . 28 5.1.2 MAC sublayer services . 28 5.1.3 MAC sublayer parameters . 28 5.1.3.1 General . 28 5.1.3.2 Parameter M1 (number of slots per superframe) . 29 5.1.3.3 Parameter M2_inc and M2_limit (MAC layer control parameters for network entry) . 29 5.1.3.4 Inspection of m2 filter following transceiver failure . 30 5.1.4 Time synchronization . 30 5.1.4.1 Primary . 30 5.1.4.2 Secondary . 30 5.1.4.3 Alignment to UTC second . 31 5.1.4.4 Data quality level . 31 5.1.5 Slot idle/busy notification . 31 5.1.5.1 Slot idle detection . 31 5.1.5.2 Slot busy detection . 31 5.1.5.3 Slot occupied detection . 31 5.1.5.4 Signal level indication . 31 5.1.6 Transmission processing . 32 5.1.7 Received transmission processing . 32 5.2 VSS sublayer . 32 5.2.1 Services . 32 5.2.1a Multiple access . 32 5.2.1.1 Error detection . 33 5.2.1.2 Channel congestion . 33 SIST EN 302 842-2 V1.4.1:2015
ETSI ETSI EN 302 842-2 V1.4.1 (2015-04) 4 5.2.2 Burst format . 33 5.2.2.1 VSS burst structure . 33 5.2.2.2 Version number . 34 5.2.2.3 Source address . 34 5.2.2.4 Message ID . 34 5.2.2.5 Information field . 35 5.2.2.6 Reservation fields . 35 5.2.2.7 Autonomous/directed flag . 36 5.2.3 VSS sublayer parameters . 36 5.2.3.1 General . 36 5.2.3.2 Parameter VS1 (number of ground quarantined slots) . 37 5.2.3.3 Parameter VS2 (minimum CCI performance) . 37 5.2.3.4 Parameter VS4 (quarantine slot re-use range) . 38 5.2.3.5 Parameter VS5 (maximum burst length) . 38 5.2.4 VSS quality of service parameters . 38 5.2.4.1 General . 38 5.2.4.2 Parameter Q1 (priority) . 38 5.2.4.3 Parameters Q2a to Q2d (slot selection range constraint for level n) . 39 5.2.4.4 Parameter Q3 (replace queued data) . 40 5.2.4.5 Parameter Q4 (number of available slots) . 40 5.2.5 Received transmission processing . 40 5.2.6 Reserved access protocol specification . 41 5.2.6.1 Reservation table . 41 5.2.6.2 Selecting slots for transmission or reservation . 42 5.2.6.3 Reserved transmissions . 43 5.2.6.4 Reservation conflicts . 44 5.2.6.5 Transmission conflicts for mobile stations . 44 5.2.7 Random access protocol specification . 45 5.2.7.1 General . 45 5.2.7.2 Random access parameters. 45 5.2.7.3 Random access procedures. 47 5.2.8 Void . 47 5.2.9 Null reservation protocol specification . 47 5.2.9.1 Null reservation burst format . 47 5.2.10 Periodic broadcast protocol specification . 48 5.2.10.1 Periodic broadcast reservation burst format . 48 5.2.10.2 Periodic broadcast timers . 49 5.2.10.3 Periodic broadcast parameters . 49 5.2.10.4 Periodic broadcast reception procedures . 50 5.2.10.5 Periodic broadcast transmission procedures . 51 5.2.11 Incremental broadcast protocol specification . 54 5.2.11.1 Incremental broadcast reservation burst format . 54 5.2.11.2 Incremental broadcast parameters . 54 5.2.11.3 Incremental broadcast reception procedures . 55 5.2.11.4 Incremental broadcast transmission procedures . 55 5.2.12 Combined periodic broadcast and incremental broadcast protocol specification . 56 5.2.12.1 Combined periodic broadcast and incremental broadcast reservation burst. 56 5.2.13 Big negative dither (BND) broadcast protocol specifications . 56 5.2.13.1 BND reservation burst format . 56 5.2.13.2 BND broadcast parameters. 57 5.2.13.3 BND broadcast reception procedures . 57 5.2.13.4 BND broadcast transmission procedures . 57 5.2.14 Unicast request protocol specification . 57 5.2.14.1 Unicast request reservation burst format . 57 5.2.14.1a Unicast request parameters. 58 5.2.14.2 Unicast request reception procedures . 59 5.2.14.3 Unicast request transmission procedures . 60 5.2.15 Information transfer request protocol specification . 60 5.2.15.1 Information transfer request reservation burst format . 60 5.2.15.2 Information transfer request reception procedures . 61 5.2.16 Directed request protocol specification. 62 5.2.16.1 Directed request reservation burst format . 62 SIST EN 302 842-2 V1.4.1:2015
ETSI ETSI EN 302 842-2 V1.4.1 (2015-04) 5 5.2.16.2 Directed request parameters . 65 5.2.16.3 Directed request reception procedures . 66 5.2.16.4 Directed request transmission procedures . 67 5.2.16.5 Directed request response procedures . 68 5.2.17 Block reservation protocols specification . 69 5.2.17.1 Superframe block reservation burst format . 69 5.2.17.2 Second frame block reservation burst format . 70 5.2.17.3 Void. 71 5.2.17.4 Superframe block reservation reception procedures . 71 5.2.17.5 Second frame block reservation parameters . 73 5.2.17.6 Second frame block reservation reception procedures . 73 5.2.17.7 Void. 73 5.2.17.7a Procedures for responding to a rebroadcast request for superframe block reservation . 73 5.2.18 Response protocol specification . 73 5.2.18.1 Response burst format . 73 5.2.19 General request protocol specification . 74 5.2.19.1 General request burst format . 74 5.2.19.2 General request procedures . 75 5.2.20 General response protocol specification . 75 5.2.20.1 General response burst format. 75 5.2.20.2 General response procedures . 77 5.2.21 Retransmission procedures . 77 5.3 DLS sublayer . 77 5.3.1 Services . 77 5.3.1.1 General . 77 5.3.1.2 Data transfer . 77 5.3.1.3 Station address encoding . 78 5.3.1.4 DLS burst formats . 79 5.3.2 DLS system parameters . 80 5.3.2.1 Parameter ND4 (maximum length of a UDATA burst) . 80 5.3.3 DLS procedures . 80 5.3.3.1 Broadcast . 80 5.3.3.2 DLS not supported . 81 5.3.3.3 User data packet reception . 81 5.3.3.4 CTRL DLPDU . 81 5.4 Link Management Entity (LME) sublayer . 81 5.4.1 Services . 81 5.4.2 Synchronization burst format . 81 5.4.2.1 General . 81 5.4.2.2 Fixed and variable data fields. 82 5.4.2.3 Fixed data field format . 82 5.4.2.4 Variable data field format . 85 5.4.2.5 Synchronization burst request . 85 5.4.2.6 Broadcast link management burst . 85 5.4.3 Control (CTRL) parameter formats . 86 5.4.3.1 Encoding . 86 5.4.3.2 VDL Mode 4 parameter identification . 86 5.4.3.3 Ground-initiated modification parameters . 87 5.4.3.4 Ground-initiated information parameters . 90 5.4.3a LME timers and parameters . 92 5.4.3a.1 General . 92 5.4.3a.2 Counter L1 (maximum number of missed reservations) and Timer TL3 (inter miss timer) . 93 5.4.4 LME procedures . 93 5.4.4.1 Synchronization burst procedures . 93 5.4.4.2 Peer Entity Contact Table (PECT) . 95 5.4.4.3 Network entry protocol specifications . 96 5.4.5 Additional material for ADS-B applications . 102 5.4.5.1 Information field formats . 102 5.4.5.2 ADS-B request format. 103 5.5 Void . 103 5.6 Definitions for Compact Position Reporting . 103 5.6.1 Introduction. 103 SIST EN 302 842-2 V1.4.1:2015
ETSI ETSI EN 302 842-2 V1.4.1 (2015-04) 6 5.6.2 Parameter symbols, data types, constants and variables . 103 5.6.2.1 Parameter symbols . 103 5.6.2.2 Data types . 104 5.6.2.3 Constants . 104 5.6.2.4 Variables . 104 5.6.2.5 Functions . 104 5.6.2.6 Patch constants . 104 5.6.3 Fixed data field position encoding . 104 5.6.4 Fixed data field position local decoding . 104 5.6.5 Fixed data field position global decoding . 104 5.6.6 Position Report Processing . 104 6 General design requirements . 104 6.1 Controls and indicators . 104 6.2 Warm up . 104 6.3 Airworthiness . 104 6.4 Intended function . 104 6.5 International Telecommunications Union regulations . 104 6.6 Fire protection . 105 6.7 Operation of controls . 105 6.8 Accessibility of controls . 105 6.9 Effects of tests . 105 6.10 Failure of the VDL Mode 4 equipment . 105 6.11 Software management . 105 6.12 Transceiver configuration . 105 6.13 Provision for multiple redundant VDL4 transceivers . 105 6.14 Reception capability . 105 6.15 Transmission capability . 105 6.16 Monitoring of proper operation . 105 6.17 Power-up self test . 105 7 Protocol test procedures . 105 7.1 General . 105 7.1.1 Input voltage . 105 7.1.2 Power input frequency . 106 7.1.3 Adjustment of equipment . 106 7.1.4 Equipment configuration . 106 7.1.5 Test equipment precautions . 106 7.1.6 Ambient conditions . 106 7.1.7 Connected loads . 106 7.2 Required test rig . 106 7.3 Protocol test-suite description methodology . 109 7.4 Detailed protocol test procedures . 109 7.4.1 Test-suite overview . 109 7.4.2 Declarations . 115 7.4.3 Constraints . 115 7.4.3.1 Abbreviations . 115 7.4.3.1.1 Subfield mnemonics . 115 7.4.3.1.2 Special characters used in the subfield definitions . 116 7.4.3.1.3 Station addresses and positions . 116 7.4.3.1.4 Tables of values for use in CPR test cases . 118 7.4.3.1.5 Tables of values for use in content checking test cases . 129 7.4.3.1.6 VDL4 burst formats . 131 7.4.3.2 Test cases . 151 7.4.3.2.1 Test case macros . 152 7.4.3.2.2 Test case descriptions . 155 Annex A (informative): Cross reference matrix . 379 Annex B (informative): Description of ISO/IEC 9646 test methodology. 405 B.1 Overview of the structure of the ISO/IEC 9646 test suites . 405 SIST EN 302 842-2 V1.4.1:2015
ETSI ETSI EN 302 842-2 V1.4.1 (2015-04) 7 B.2 The test case description. 405 B.3 The queue action . 407 B.4 The repeat construct . 407 B.5 Macro definitions . 408 B.6 Test case naming . 408 Annex C (informative): Bibliography . 409 History . 410
ETSI ETSI EN 302 842-2 V1.4.1 (2015-04) 8 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (EN) has been produced by ETSI Technical Committee Aeronautics (AERO). The present document is part 2 of a multi-part deliverable covering the VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment, as identified below: Part 1: "Physical layer"; Part 2: "General description and data link layer"; Part 3: "Additional broadcast aspects"; Part 4: "Point-to-point functions". The present document is accompanied by an equivalent ground-based standard, ETSI EN 301 842 [i.5] parts 1 to 5, covering the VHF air-ground Data Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment. NOTE: Minimum Operational Performance Specifications (MOPS) are also being developed for VDL Mode 4. EUROCAE have previously published Interim MOPS for VDL Mode 4 [i.6] which are a sub set of ETSI EN 302 842-1 [2], ETSI EN 302 842-2 (the present document) , ETSI EN 302 842-3 [6] and ETSI EN 302 842-4 [7]. ETSI EN 302 842-1 [2], ETSI EN 302 842-2 (the present document), ETSI EN 302 842-3 [6] and ETSI EN 302 842-4 [7] comply with the requirements of EC Mandate M/318 [i.7].
National transposition dates Date of adoption of this EN: 6 April 2015 Date of latest announcement of this EN (doa): 31 July 2015 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 January 2016 Date of withdrawal of any conflicting National Standard (dow): 31 January 2017
Modal verbs terminology In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and "cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). "must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation. SIST EN 302 842-2 V1.4.1:2015
ETSI ETSI EN 302 842-2 V1.4.1 (2015-04) 9 Introduction The present document states the technical specifications for Very High Frequency (VHF) Digital Link (VDL) Mode 4 aeronautical mobile (airborne) radio transmitters, transceivers and receivers for air-ground and air-air communications operating in the VHF band, using Gaussian Filtered Frequency Shift Keying (GFSK) modulation with 25 kHz channel spacing and capable of tuning to any of the 25 kHz channels from 112,000 MHz to 136,975 MHz as defined in ICAO VDL SARPs [i.2]. The present document may be used to produce tests for the assessment of the performance of the equipment. The performance of the equipment submitted for type testing should be representative of the performance of the corresponding production model. The present document has been written on the assumption that: • the type test measurements will be performed only once, in an accredited test laboratory and the measurements accepted by the various authorities in order to grant type approval; • if equipment available on the market is required to be checked it will be tested in accordance with the methods o
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