CONTENTS

Recommendation ITU-R M.1371-6
INTELLECTUAL PROPERTY RIGHTS
Annex 1  Operational characteristics of an automatic identification system using time division multiple access techniques in the VHF maritime mobile frequency band
A1-1     General
A1-2     Automatic identification system equipment
     A1-2.1     Automatic identification system VHF data link non-controlling stations
                  A1-2.1.1     Automatic identification system shipborne station
                  A1-2.1.2     Automatic identification system Aids to navigation station
                  A1-2.1.3     Automatic identification system aircraft station in maritime mobile service
                  A1-2.1.4     Automatic identification system repeater station
                  A1-2.1.5     Automatic identification system locating devices
                  A1-2.1.6     AMRD Group B
     A1-2.2     Automatic identification system VHF data link controlling stations
                  A1-2.2.1     Base station
A1-3     Identification
A1-4     Reporting schedule for transmitting information
A1-5     Frequency band
Annex 2  Technical characteristics of an automatic identification system using time division multiple access techniques in the maritime mobile band
A2-1     Structure of the automatic identification system
     A2-1.1     Automatic identification system layer module
     A2-1.2     Responsibilities of automatic identification system layers for preparing automatic identification system data for transmission
                  A2-1.2.1     Transport layer
                  A2-1.2.2     Network layer
                  A2-1.2.3     Link layer
                  A2-1.2.4     Physical layer
A2-2     Physical layer
     A2-2.1     Parameters
                  A2-2.1.1     General
                  A2-2.1.2     Constants
                  A2-2.1.3     Transmission media
                  A2-2.1.4     Multi-channel operation
     A2-2.2     Transceiver characteristics
     A2-2.3     Modulation scheme
                  A2-2.3.1     Gaussian minimum shift keying
                  A2-2.3.2     Frequency modulation
                  A2-2.3.3     Frequency stability
     A2-2.4     Data transmission bit rate
     A2-2.5     Training sequence
     A2-2.6     Data encoding
     A2-2.7     Forward error correction
     A2-2.8     Interleaving
     A2-2.9     Bit scrambling
    A2-2.10     Data link sensing
    A2-2.11     Transmitter transient response
  A2-2.11.1     Switching time
    A2-2.12     Transmitter power
    A2-2.13     Shutdown procedure
    A2-2.14     Safety precautions
A2-3     Link layer
     A2-3.1     Sub-layer 1: medium access control
                  A2-3.1.1     Time division multiple access synchronization
                  A2-3.1.2     Time division
                  A2-3.1.3     Slot phase and frame synchronization
                  A2-3.1.4     Slot identification
                  A2-3.1.5     Slot access
                  A2-3.1.6     Slot state
     A2-3.2     Sub layer 2: data link service
                  A2-3.2.1     Data link activation and release
                  A2-3.2.2     Data transfer
                  A2-3.2.3     Error detection and control
     A2-3.3     Sub layer 3 – link management entity
                  A2-3.3.1     Access to the data link
                  A2-3.3.2     Modes of operation
                  A2-3.3.3     Initialization
                  A2-3.3.4     Channel access schemes
                  A2-3.3.5     Autonomous and continuous operation
                  A2-3.3.6     Assigned operation
                  A2-3.3.7     Message structure
A2-4     Network layer
     A2-4.1     Multi-channel operation
                  A2-4.1.1     Operating frequency channels
                  A2-4.1.2     Normal default mode of multi-channel operation
                  A2-4.1.3     Regional operating areas
                  A2-4.1.4      Geographical area power control
                  A2-4.1.5     Resumption of operation after power on
                  A2-4.1.6     Priority of channel management commands and clearing of stored regional operating settings
     A2-4.2     Distribution of transmission packets
                  A2-4.2.1     The user directory
                  A2-4.2.2     Routing of transmission packets
                  A2-4.2.3     Management of priority assignments for messages
     A2-4.3     Changing reporting interval
                  A2-4.3.1     Autonomously changed Rr (continuous and autonomous mode)
                  A2-4.3.2     Assigned Rr
     A2-4.4     Data link congestion resolution
                  A2-4.4.1     Intentional slot reuse by the own station
                  A2-4.4.2     Use of assignment for congestion resolution
     A2-4.5     Base station operation
     A2-4.6     Repeater application
                  A2-4.6.1     Repeat indicator
                  A2-4.6.2     Repeater operation
     A2-4.7     Handling of errors related to packet sequencing and groups of packets
A2-5     Transport layer
     A2-5.1     Definition of transmission packet
     A2-5.2     Conversion of data into transmission packets
                  A2-5.2.1     Conversion to transmission packets
     A2-5.3     Transmission packets
                  A2-5.3.1     Addressed Messages 6 and 12
                  A2-5.3.2     Broadcast messages
                  A2-5.3.3     Conversion to presentation interface messages
     A2-5.4     Presentation interface protocol
Annex 3  Long-range applications
A3-1     General
A3-2     Long-range applications by broadcast
     A3-2.1     Packet bit structure for the automatic identification system satellite uplink
     A3-2.2     Automatic identification system satellite message
     A3-2.3     Transmission method for automatic identification system satellite message
                  A3-2.3.1     Transmission interval
                  A3-2.3.2     Access scheme
                  A3-2.3.3     Automatic identification system shore station qualifier
                  A3-2.3.4     Transmitting the AIS Message 27
Annex 4  Application specific messages
A4-1     General
     A4-1.1     Binary messages
     A4-1.2     Definition of application identifiers
     A4-1.3     Definition of function messages
A4-2     Binary data structure
     A4-2.1     Application identifier
                  A4-2.1.1     Test application identifier
                  A4-2.1.2     International application identifier
A4-3     Guidelines for creating functional messages
     A4-3.1     International functional messages
     A4-3.2     Regional functional messages
A4-4     Guidelines for drafting functional messages
A4-5     Definitions of system related international function messages
     A4-5.1     International function message 0: Text using 6-bit ASCII
     A4-5.2     International function message 2: Interrogation for a specific functional message
     A4-5.3     International function message 3: Capability interrogation
     A4-5.4     International function message 4: Capability reply
     A4-5.5     International function message 5: Application acknowledgement to an addressed binary message
Annex 5  Sequencing of transmission packets
Annex 6  Class B automatic identification system using carrier sense time division multiple access technology
A6-1     Definition
A6-2     General requirements
     A6-2.1     General
                  A6-2.1.1     Capabilities of the Class B “CS” automatic identification system
                  A6-2.1.2     Modes of operation
A6-3     Performance requirements
     A6-3.1     Composition
     A6-3.2     Operating frequency channels
     A6-3.3     Internal global navigation satellite system receiver for position reporting
     A6-3.4     Identification
     A6-3.5     Automatic identification system Information
                  A6-3.5.1     Information content
                  A6-3.5.2     Information reporting intervals
                  A6-3.5.3     Transmitter shutdown procedure
                  A6-3.5.4     Static data input
A6-4     Technical requirements
     A6-4.1     General
     A6-4.2     Physical layer
                  A6-4.2.1     Transceiver characteristics
                  A6-4.2.2     Transmitter requirements
                  A6-4.2.3     Receiver parameters
     A6-4.3     Link layer
                  A6-4.3.1     Link sub-layer 1: medium access control
                  A6-4.3.2     Link sub-layer 2: data link service
                  A6-4.3.3     Link sub-layer 3 – link management entity
     A6-4.4     Network layer
                  A6-4.4.1     Dual channel operation
                  A6-4.4.2     Channel management
                  A6-4.4.3     Distribution of transmission packets
                  A6-4.4.4     Data link congestion resolution
     A6-4.5     Transport layer
                  A6-4.5.1     Transmission packets
                  A6-4.5.2     Sequencing of data packets
Annex 7  Automatic identification system messages
A7-1     Message types
A7-2     Message summary
A7-3     Message descriptions
     A7-3.1     Messages 1, 2, 3: Position reports
     A7-3.2     Message 4: Base station report
     A7-3.3     Message 5: Ship static and voyage related data
                  A7-3.3.1     The data terminal equipment indicator
                  A7-3.3.2     Type of ship
                  A7-3.3.3     Reference point for reported position and overall dimensions of ship
     A7-3.4     Message 6: Addressed binary message
     A7-3.5     Message 7: Binary acknowledge
     A7-3.6     Message 8: Binary broadcast message
     A7-3.7     Message 9: Standard aircraft station in the maritime mobile service position report
     A7-3.8     Message 10: Coordinated universal time and date inquiry
     A7-3.9     Message 11: Coordinated universal time/date response
    A7-3.10     Message 12: Addressed safety related message
    A7-3.11     Message 13: Safety related acknowledge
    A7-3.12     Message 14: Safety related broadcast message
    A7-3.13     Message 15: Interrogation
    A7-3.14     Message 16: Assigned mode command
    A7-3.15     Message 17: Global navigation-satellite system broadcast binary message
    A7-3.16      Message 18: Standard Class B equipment position report
    A7-3.17     Message 19: Extended Class B equipment position report
    A7-3.18     Message 20: Data link management message
    A7-3.19     Message 21: Aids-to-navigation report
  A7-3.19.1     Dimension/reference for position of AtoNs
    A7-3.20     Message 22: Channel management
    A7-3.21     Message 23: Group assignment command
    A7-3.22     Message 24: Static data report
    A7-3.23     Message 25: Single slot binary message
    A7-3.24     Message 26: Multiple slot binary message with communications state
    A7-3.25     Message 27: Automatic identification system satellite message
    A7-3.26     Message 28: Aid-to-Navigation Report (Single-slot message)
Annex 8  Requirements for stations using burst transmissions
A8-1     Requirements for stations using burst transmissions
A8-2     Transceiver characteristics
A8-3     Transmitter requirements
A8-4     Synchronization accuracy
A8-5     Channel access scheme
A8-6     Supplemental ID information