1、 ETSI EN 301 842-4 V1.3.1 (2015-04) VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 4: Point-to-point functions EUROPEAN STANDARD ETSI ETSI EN 301 842-4 V1.3.1 (2015-04) 2 Reference REN/AERO-00020-4 Keywo
2、rds 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 but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice
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7、e 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, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the be
8、nefit 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. ETSI ETSI EN 301 842-4 V1.3.1 (2015-04) 3 Contents Intellectual Property R
9、ights 6g3Foreword . 6g3Modal verbs terminology 6g3Introduction 7g31 Scope 8g32 References 9g32.1 Normative references . 9g32.2 Informative references 9g33 Definitions and abbreviations . 10g33.1 Definitions 10g33.1.1 Basic reference model definitions . 10g33.1.2 Service conventions definitions 10g33
10、.1.3 General definitions 10g33.1.4 Definition of bit order . 10g33.2 Abbreviations . 10g34 General description of VDL Mode 4 ground station point-to-point services . 11g34.1 General . 11g34.2 Data Link Service (DLS) and Link Management Entity (LME) 12g34.2.1 General 12g34.2.2 DLS timers 15g34.2.3 DL
11、S counters 15g34.2.4 Toggle bit (T) 15g34.2.5 State variables (Tt and Tr) . 16g34.2.6 Initialize Bit (IB) . 16g34.2.7 More bit (M) . 16g34.2.8 Priority (pr) . 16g34.2.9 Message fragmentation and concatenation . 16g34.2.10 DLS procedures 16g34.2.10.1 Selection of DLS procedures. 16g34.2.10.2 Short tr
12、ansmission procedures 17g34.2.10.3 Long transmission procedures . 17g34.2.11 Linking transmissions . 19g34.2.11.1 Types of linking 19g34.2.11.2 Combined RTS / DATA DLPDUs 19g34.2.11.3 Combined DATA / ACK DLPDUs . 19g34.2.11.4 Combined RTS / ACK DLPDUs 19g34.2.11.5 Combined CTS / ACK DLPDUs 19g34.2.1
13、2 Ground-air link management 19g34.2.13 Air-air link management . 20g34.3 Additional VSS Services 20g35 Minimum performance specification under standard test conditions . 20g35.1 DLS Sublayer . 20g35.1.1 General 20g35.1.1.1 Services . 20g35.1.1.2 Data transfer 21g35.1.1.3 DATA DLPDU duplicate suppre
14、ssion and sequencing 21g35.1.1.4 Error detection . 21g35.1.1.5 Station identification . 21g35.1.1.6 Broadcast addressing . 21g35.1.1.7 DLS Priority 22g35.1.1.8 DLS Link control DLPDUs 22g35.1.2 DLS protocol specification . 22g35.1.2.1 State Variables 22g3ETSI ETSI EN 301 842-4 V1.3.1 (2015-04) 4 5.1
15、.2.2 DLS burst formats . 22g35.1.3 DLS system parameters 26g35.1.4 DLS procedures 27g35.1.4.1 Setting of re-transmission parameter . 27g35.1.4.2 Selection of user data packet for transmission 28g35.1.4.3 Selection of transmission procedures 29g35.1.4.4 Short transmission procedures 30g35.1.4.5 Long
16、transmission procedures . 31g35.1.4.6 No link with sender . 33g35.1.4.7 User data packet reception 34g35.1.4.8 Receipt of ACK DLPDU 34g35.1.4.9 Link reset 35g35.1.4.10 Linking DLS DLPDU transmissions . 35g35.1.4.11 CTRL DLPDU 36g35.2 Link management entity sublayer. 36g35.2.1 Services . 36g35.2.1.1
17、General 36g35.2.1.2 Link provision . 37g35.2.1.3 Link change notifications 37g35.2.1.4 CTRL DLPDU 37g35.2.1.5 Broadcast link management burst . 38g35.2.2 Control (CTRL) parameter formats 38g35.2.2.1 Encoding . 38g35.2.2.2 General purpose information parameters 38g35.2.2.3 Mobile-initiated informatio
18、n parameters . 42g35.2.2.4 Ground-initiated modification parameters 43g35.2.2.5 Ground-initiated information parameters 46g35.2.3 LME timers and parameters 48g35.2.3.1 General 48g35.2.3.2 Timer TL1 (maximum link overlap time) . 49g35.2.3.3 Parameters TL2 (link initialization time) 49g35.2.3.4 Timer
19、TL4 (leave generation latency) . 49g35.2.4 CTRL DLPDU types and procedures . 50g35.2.5 CTRL transmission procedures . 53g35.2.5.1 Link connectivity procedures 53g35.2.5.2 Ground Station Identification 53g35.2.5.3 Link establishment 53g35.2.5.4 Mobile-initiated handoff . 54g35.2.5.5 Mobile-requested
20、ground-initiated handoff . 54g35.2.5.6 Ground-initiated handoff . 55g35.2.5.7 Ground-requested mobile-initiated handoff 55g35.2.5.8 Ground-requested broadcast handoff 55g35.2.5.9 Ground-commanded autotune . 56g35.2.6 VDL Mode 4 Mobile Subnetwork Dependent Convergence Function (SNDCF) 56g35.2.6.1 Fra
21、me Mode SNDCF 56g35.3 Additional VSS Requirements . 56g35.3.1 Additional VSS quality of service parameters 56g35.3.1.1 Parameter Q5 (VSS retransmission parameters) . 56g35.3.2 Unicast request protocol specification 56g35.3.2.1 Unicast request parameters 57g35.3.2.2 Unicast request transmission proce
22、dures 58g35.3.3 Information transfer request protocol specification 58g35.3.3.1 Information transfer request parameters 58g35.3.3.2 Information transfer request transmission procedures 60g35.3.3.3 Information transfer request acknowledgement procedures 60g35.3.4 Retransmission procedures . 60g36 Gen
23、eral design requirements 61g37 Protocol test procedures . 61g37.1 General . 61g37.2 Required test rig . 61g3ETSI ETSI EN 301 842-4 V1.3.1 (2015-04) 5 7.3 Protocol test-suite description methodology 61g37.4 Detailed protocol test procedures . 62g37.4.1 Test-suite overview . 62g37.4.2 Declarations 64g
24、37.4.3 Constraints 64g37.4.3.1 Abbreviations 64g37.4.3.1.1 Subfield mnemonics 64g37.4.3.1.2 Special characters used in the subfield definitions 65g37.4.3.1.3 Station addresses and positions . 65g37.4.3.1.4 VDL bursts 66g37.4.3.2 Test cases 96g37.4.3.2.1 Test case macros 97g37.4.3.2.2 Test case descr
25、iptions 99g3Annex A (informative): Cross reference matrix 154g3Annex B (informative): Bibliography . 163g3History 164g3ETSI ETSI EN 301 842-4 V1.3.1 (2015-04) 6 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The informatio
26、n 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
27、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 update
28、s 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 4 of a multi-part deliverable covering the VHF air-ground Digital Link
29、 (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment, as identified below: Part 1: “EN for ground equipment“; Part 2: “General description and data link layer“; Part 3: “Additional broadcast aspects“; Part 4: “Point-to-point functions“; Part
30、5: “Hamonized EN covering the essential requirements of article 3.2 of the R Technical characteristics and methods of measurement for airborne equipment. 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 p
31、ublication 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“, “
32、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 ETSI EN 301 842-4 V1.3.1 (2015-04) 7 Introduction The pr
33、esent document states the technical specifications for Very High Frequency (VHF) Digital Link (VDL) Mode 4 ground-based radio transmitters, transceivers and receivers for air-ground communications operating in the VHF band, using Gaussian-filtered Frequency Shift Keying (GFSK) Modulation with 25 kHz
34、 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 VHF Digital Link (VDL) Standards and Recommended Practices (SARPs) 7. The present document may be used to produce tests for the assessment of the performance of the equipment. ETSI
35、 ETSI EN 301 842-4 V1.3.1 (2015-04) 8 1 Scope The present document applies to the following radio equipment types: 1) Very High Frequency (VHF) Digital Link (VDL) Mode 4 ground-based radio transmitters and receivers for air-ground communications operating in the VHF band, using Gaussian-filtered Fre
36、quency 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 VHF Digital Link (VDL) Standards and Recommended Practices (SARPs) 7. The present document provides part 4 of the technical specifi
37、cations. The present document is designed to ensure that equipment certified to it will be compatible with the relevant ICAO VHF Digital Link (VDL) Standards and Recommended Practices (SARPs) 7 and VDL Mode 4 Technical Manual (TM) 1. Manufacturers should note that in future the tuning range for the
38、ground transceivers may also cover any 25 kHz channel from 108,000 MHz to 111,975 MHz. The scope of the present document is limited to ground stations. The equivalent specification for airborne stations is ETSI EN 302 842 i.1. A description of the scope of the VDL Mode 4 system is provided in part 2
39、 of these technical specifications (see ETSI EN 301 842-2 5, clause 1). ETSI EN 301 842-1 4 deals with tests of the physical layer, ETSI EN 301 842-2 5 deals with core link layer functionality and ETSI EN 301 842-3 6 with additional broadcast functionality. The present document deals with tests of t
40、he datalink service (DLS) layer and the link layer sufficient to support point-to-point functionality. The present document is organized as follows: clause 2 provides references to relevant documents; clause 3 provides general definitions, abbreviations and symbols used; clause 4 describes the VDL M
41、ode 4 ground station point-to-point functions; clause 5 provides performance specifications for the VDL Mode 4 ground station; clause 6 provides general design requirements; clause 7 provides protocol tests for the point-to-point functions of the system; annex A provides a detailed cross-reference t
42、o the relevant requirements contained in 1; annex B provides a Bibliography. Note that the system can support a very wide range of functions. It is not practical to provide specific tests for all aspects of functionality. The approach used is to provide detailed tests for the core point-to-point fun
43、ctionality and to provide tests of those remaining requirements which, if wrongly implemented, could cause a deterioration in the service offered by other VDL Mode 4 stations. Mandating and Recommendation Phrases a) “Shall“: - the use of the word “Shall“ indicates a mandated criterion; i.e. complian
44、ce with the particular procedure or specification is mandatory and no alternative may be applied. b) “Should“: - the use of the word “Should“ (and phrases such as “It is recommended that.“, etc.) indicates that though the procedure or criterion is regarded as the preferred option, alternative proced
45、ures, specifications or criteria may be applied, provided that the manufacturer, installer or tester can provide information or data to adequately support and justify the alternative. ETSI ETSI EN 301 842-4 V1.3.1 (2015-04) 9 2 References 2.1 Normative references References are either specific (iden
46、tified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to
47、be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the applicat
48、ion of the present document. 1 ICAO Doc 9816 AN/448 (First Edition 2004): “Manual on VHF Digital Link (VDL) Mode 4, Part 2: Detailed Technical Specifications“. 2 Void. 3 ICAO Doc 9705/AN-956 (Edition 3.0 - 2002): “Manual of Technical Provisions for Aeronautical Telecommunication Network (ATN)“. 4 ET
49、SI EN 301 842-1 (V1.4.1): “VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 1: EN for ground equipment“. 5 ETSI EN 301 842-2 (V1.7.1): “VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 2: General description and data link layer“. 6 ETSI EN 301 842-3 (V1.4.1): “VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics
