SIST EN 301 842-2 V1.3.1:2006

Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF air-ground Data Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 2: Data link layer

The present document states part 2 of the minimum performance requirements for VHF Datalink Mode 4 (VDL Mode 4) ground station equipment intended to be used for air-ground data communications, operating in the VHF band (117,975 MHz to 136,975 MHz and optionally 112,000 MHz to 117,975 MHz) allocated to the aeronautical mobile service. The equipment is also intended to be interoperable with mobile equipment supporting air-air data communications. It 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) and VDL Mode 4 Technical Manual (TM) [1]. Manufacturers should note that all or part of the frequency band 108,000 MHz to 117,975 MHz might become available for aeronautical communications. The present document applies to Gaussian-filtered Frequency Shift Keying (GFSK) systems, with channel separations of 25 kHz intended for air-ground communications. The scope of the present document is limited to ground base stations.
The VDL system provides data communication exchanges between aircraft and ground based systems 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) and Flight Information Service - Broadcast (FIS-B) capabilities;
• 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) [8] 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 these have not been focussed on in the present document.
The present document specifies functional specifications of VHF communication ground station equipment intended to be used for air-ground and air-air data communications.

Elektromagnetna združljivost in zadeve v zvezi z radijskim spektrom (ERM) – Radijska oprema za podatkovno povezavo VHF zrak-tla, 4. način – Tehnične karakteristike in merilne metode za talno opremo – 2. del: Plast podatkovnih povezav

General Information

• Status: Published
• Publication Date: 28-Feb-2006
• ICS: 33.060.99 - Other equipment for radiocommunications
• ICS: 33.100.01 - Electromagnetic compatibility in general
• ICS: 35.100.20 - Data link layer
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Mar-2006
• Due Date: 01-Mar-2006
• Completion Date: 01-Mar-2006
• Mandate: M/239
• Ref Project: ETSI EN 301 842-2 V1.3.1 (2005-04) - Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF air-ground Data Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 2: Data link layer

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 301 842-2 V1.3.1:2006
01-marec-2006
(OHNWURPDJQHWQD]GUXåOMLYRVWLQ]DGHYHY]YH]L]UDGLMVNLPVSHNWURP(50±
5DGLMVNDRSUHPD]DSRGDWNRYQRSRYH]DYR9+)]UDNWODQDþLQ±7HKQLþQH
NDUDNWHULVWLNHLQPHULOQHPHWRGH]DWDOQRRSUHPR±GHO3ODVWSRGDWNRYQLK
SRYH]DY
Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF air-ground Data
Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of
measurement for ground-based equipment; Part 2: Data link layer
Ta slovenski standard je istoveten z: EN 301 842-2 Version 1.3.1
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
35.100.20 Podatkovni povezovalni sloj Data link layer
SIST EN 301 842-2 V1.3.1:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 301 842-2 V1.3.1:2006

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SIST EN 301 842-2 V1.3.1:2006

ETSI EN 301 842-2 V1.3.1 (2005-04)
European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
VHF air-ground Data Link (VDL) Mode 4 radio equipment;
Technical characteristics and methods of measurement
for ground-based equipment;
Part 2: Data link layer

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SIST EN 301 842-2 V1.3.1:2006
 2 ETSI EN 301 842-2 V1.3.1 (2005-04)



Reference
REN/ERM-TG25-023
Keywords
aeronautical, digital, radio, testing, VHF
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© European Telecommunications Standards Institute 2005.
All rights reserved.

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ETSI

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SIST EN 301 842-2 V1.3.1:2006
 3 ETSI EN 301 842-2 V1.3.1 (2005-04)
Contents
Intellectual Property Rights.8
Foreword.8
Introduction .9
1 Scope.10
2 References.11
3 Definitions and abbreviations.12
3.1 Definitions.12
3.1.1 Basic reference model definitions.12
3.1.2 Service conventions definitions .13
3.1.3 General definitions.13
3.2 Abbreviations.16
4 General description of VDL Mode 4 ground station link layer.17
4.1 General.17
4.1.1 Overview of VDL Mode 4.17
4.1.2 Relationship to OSI reference model.18
4.1.3 VDL Mode 4 services .20
4.1.4 ADS-B Function.20
4.1.5 Operational scenarios.21
4.1.6 VDL Mode 4 fundamentals .21
4.1.7 Possible configuration of ground equipment .22
4.1.8 Overall structure of specifications for VDL Mode 4 .22
4.1.9 Equipment performance verification .24
4.2 Ground quarantine.25
4.3 System timing.25
4.4 Net entry.25
4.5 Autotune capability.25
4.6 Autonomous and fixed access .26
5 Minimum performance specification under standard test conditions.26
5.1 MAC sublayer.26
5.1.1 Services.26
5.1.2 MAC sublayer services.26
5.1.3 MAC sublayer parameters .26
5.1.3.1 General.26
5.1.3.2 Parameter M1 (number of slots per superframe).27
5.1.4 Time synchronization.27
5.1.4.1 Primary.27
5.1.4.2 Secondary.27
5.1.4.3 Alignment to UTC second .27
5.1.4.4 Data quality level.27
5.1.5 Slot idle/busy notification.27
5.1.5.1 Slot idle detection.27
5.1.5.2 Slot busy detection .28
5.1.5.3 Slot occupied detection .28
5.1.5.4 Signal level indication.28
5.1.6 Transmission processing.28
5.1.7 Received transmission processing .28
5.2 VSS sublayer.28
5.2.1 Services.28
5.2.1.1 Error detection.28
5.2.1.2 Channel congestion.29
5.2.2 Burst format.29
5.2.2.1 VSS burst structure.29
5.2.2.2 Version number.29
ETSI

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SIST EN 301 842-2 V1.3.1:2006
 4 ETSI EN 301 842-2 V1.3.1 (2005-04)
5.2.2.3 Source address.30
5.2.2.4 Message ID.30
5.2.2.5 Information field.30
5.2.2.6 Reservation fields.31
5.2.2.7 Autonomous/directed flag.31
5.2.3 VSS sublayer parameters .32
5.2.3.1 General.32
5.2.3.2 Parameter VS1 (number of ground quarantined slots) .32
5.2.3.3 Parameter VS2 (minimum CCI performance).33
5.2.3.4 Parameter VS4 (quarantine slot re-use range).33
5.2.3.5 Parameter VS5 (maximum burst length).33
5.2.4 VSS quality of service parameters.33
5.2.4.1 General.33
5.2.4.2 Parameter Q1 (priority) .34
5.2.4.3 Parameters Q2a to Q2d (slot selection range constraint for level n) .34
5.2.4.4 Parameter Q3 (replace queued data) .35
5.2.4.5 Parameter Q4 (number of available slots).35
5.2.5 Received transmission processing .35
5.2.6 Reserved access protocol specification.36
5.2.6.1 Reservation table.36
5.2.6.2 Selecting slots for transmission or reservation.36
5.2.6.3 Reserved transmissions.37
5.2.6.4 Reservation conflicts.37
5.2.7 Random access protocol specification .38
5.2.7.1 General.38
5.2.7.2 Random access parameters.38
5.2.7.3 Random access procedures.39
5.2.8 Fixed access protocol specification .40
5.2.8.1 General.40
5.2.8.2 Recommendation.40
5.2.9 Null reservation protocol specification.40
5.2.9.1 Null reservation burst format .40
5.2.10 Periodic broadcast protocol specification .40
5.2.10.1 Periodic broadcast reservation burst format.40
5.2.10.2 Periodic broadcast timers.41
5.2.10.3 Periodic broadcast parameters.41
5.2.10.4 Periodic broadcast reception procedures.42
5.2.10.5 Periodic broadcast transmission procedures.43
5.2.11 Incremental broadcast protocol specification .44
5.2.11.1 Incremental broadcast reservation burst format .44
5.2.11.2 Incremental broadcast parameters.45
5.2.11.3 Incremental broadcast reception procedures .45
5.2.11.4 Incremental broadcast transmission procedures.46
5.2.12 Combined periodic broadcast and incremental broadcast protocol specification .46
5.2.12.1 Combined periodic broadcast and incremental broadcast reservation burst.46
5.2.13 Big negative dither (BND) broadcast protocol specifications .47
5.2.13.1 BND reservation burst format.47
5.2.13.2 BND broadcast parameters.47
5.2.13.3 BND broadcast reception procedures.47
5.2.14 Unicast request protocol specification .47
5.2.14.1 Unicast request reservation burst format.47
5.2.14.2 Unicast request reception procedures.48
5.2.14.3 Slot selection criteria for unicast request with sdf = 1 .49
5.2.15 Information transfer request protocol specification .49
5.2.15.1 Information transfer request reservation burst format.49
5.2.15.2 Information transfer request reception procedures.50
5.2.16 Directed request protocol specification.50
5.2.16.1 Directed request reservation burst format .50
5.2.16.2 Directed request parameters.54
5.2.16.3 Directed request reception procedures .54
5.2.16.4 Directed request transmission procedures.56
5.2.17 Block reservation protocols specification.57
ETSI

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SIST EN 301 842-2 V1.3.1:2006
 5 ETSI EN 301 842-2 V1.3.1 (2005-04)
5.2.17.1 Superframe block reservation burst format .57
5.2.17.2 Second frame block reservation burst format.58
5.2.17.3 Superframe block reservation parameters .58
5.2.17.4 Superframe block reservation reception procedures .59
5.2.17.5 Second frame block reservation parameters.59
5.2.17.6 Second frame block reservation reception procedures.60
5.2.17.7 Superframe block reservation transmission procedures .61
5.2.17.8 Second frame block reservation transmission procedures.61
5.2.18 Response protocol specification .62
5.2.18.1 Response burst format.62
5.2.19 General request protocol specification.62
5.2.19.1 General request burst format.62
5.2.19.2 General request procedures .63
5.2.20 General response protocol specification .63
5.2.20.1 General response burst format.63
5.2.20.2 General response procedures.64
5.3 DLS sublayer.65
5.3.1 Services.65
5.3.1.1 General.65
5.3.1.2 Data transfer.65
5.3.1.3 Station address encoding.65
5.3.1.4 DLS burst formats.66
5.3.2 DLS system parameters.67
5.3.2.1 Parameter ND4 (maximum length of a UDATA burst) .68
5.3.3 DLS procedures.68
5.3.3.1 Broadcast.68
5.3.3.2 DLS not supported.68
5.3.3.3 User data packet reception .68
5.4 Link Management Entity sublayer .68
5.4.1 Services.68
5.4.2 Synchronization burst format.68
5.4.2.1 General.68
5.4.2.2 Fixed and variable data fields.69
5.4.2.3 Fixed data field format .69
5.4.2.4 Variable data field format .72
5.4.2.5 Synchronization burst request .72
5.4.2.6 Link management burst.72
5.4.3 Control (CTRL) parameter formats .73
5.4.3.1 Encoding.73
5.4.3.2 VDL Mode 4 parameter identification .73
5.4.3.3 Ground-initiated modification parameters .74
5.4.3.4 Ground-initiated information parameters.75
5.4.4 LME procedures.78
5.4.4.1 Synchronization burst procedures .78
5.4.4.2 Peer entity contact table (PECT).79
5.4.4.3 Network entry protocol specifications .80
5.4.5 Additional material for ADS-B applications .81
5.4.5.1 Information field formats.81
5.4.5.2 ADS-B request format.81
5.5 Additional requirements for ground stations .81
5.5.1 System timing requirements .81
5.5.1.1 Maintenance of Primary time.81
5.5.2 Ground station interface requirements.82
5.5.2.1 Ground station coordination.82
5.5.2.2 Network timing requirements.82
5.5.2.3 Application interface req
...