com_procedure

CNS Manual-Vol-II
Communication Procedure
• K.S.Kathayat
• .AGM(Com)
Airports Authority of India Saturday, February 20, 2016

1.1. GENERALGENERAL
2.2. LIST OF SPECIALIZED COM TERMS AND THEIRLIST OF SPECIALIZED COM TERMS AND THEIR
DEFINITIONS RELATED TODEFINITIONS RELATED TO AERONAUTICALAERONAUTICAL
TELECOMMUNICATIONS PLANNINGTELECOMMUNICATIONS PLANNING
3.3. ADMINISTRATIVE PROVISIONS RELATING TO THE INTL.ADMINISTRATIVE PROVISIONS RELATING TO THE INTL.
AERONAUTICAL TELECOMMUNICATION SERVICEAERONAUTICAL TELECOMMUNICATION SERVICE
4.4. GENERAL PROCEDURES FOR THE INTERNATIONALGENERAL PROCEDURES FOR THE INTERNATIONAL
AERONAUTICAL TELECOMMUNICATION SERVICEAERONAUTICAL TELECOMMUNICATION SERVICE
5.5. AERONAUTICAL FIXED SERVICE (AFS)AERONAUTICAL FIXED SERVICE (AFS)
COM PROCEDURE

6.6. AERONAUTICAL MOBILE SERVICE — VOICEAERONAUTICAL MOBILE SERVICE — VOICE
COMMUNICATIONSCOMMUNICATIONS
7.7. AERONAUTICAL RADIO NAVIGATION SERVICEAERONAUTICAL RADIO NAVIGATION SERVICE
8.8. AERONAUTICAL BROADCASTING SERVICEAERONAUTICAL BROADCASTING SERVICE
9.9. AERONAUTICAL MOBILE SERVICE — DATA LINKAERONAUTICAL MOBILE SERVICE — DATA LINK
COMMUNICATIONCOMMUNICATION
10.10. GUIDANCE MATERIAL FOR THE TRANSMISSION OF LONGGUIDANCE MATERIAL FOR THE TRANSMISSION OF LONG
MSGS ON AFTNMSGS ON AFTN
COM PROCEDURE

Objectives & Purpose
Ensures the Telecommunication and
Radio aids to air navigation necessary for
the safety, regularity & efficiency of
International Air Navigation by Airports
Authority of India.

Responsibility for
Documentation and Publication
1.Publish/Maintain by Executive Director (CNS-OM)
2. Endorsed by Member(Ops)
3. Finally approved by Chairman, AAI
Airports Authority of India
4. Reviewed/Control and Distribute by The General
Manager (Com)
Saturday, February 20, 2016

Saturday, February 20, 2016 Airports Authority of India
Supervision
In India Airports Authority of India has designated
The Executive Director (CNS-OM), AAI .,R.G.Bhavan.
for ensuring that International aeronautical
telecommunication service is conducted in
accordance with the procedures in this manual.
No superfluous transmission or interference

Procedures
Procedure set for world wide use
Supplementary Procedures
Required as per Regional requirement but it
should not contained or reflect/conflict with
any world wide procedure

Annex & Docs
CNSM- Volume II shall be read in conjunction with the
following ;
a)Annex 10 Vol-II
b)Doc 7910 _ Location Indicators
c)Doc 8585 _ Designators for Aircraft Operating Agencies
d)Doc 8400 – ICAO abbreviations and Codes
e)Doc 7030 – Regional Supplementary Procedures
f)Doc 9734 – Safety Oversight Manual
g)Doc 9705 _ Manual of Technical Provisions for the ATN
h)Doc 9683 – Human Factors Training Manual
i)Doc 9896 – Manual for the ATN using IPS standard & protocol
j)Doc 9880- AMHS Tech specification

Communication Method
1.Air ground
2.Air to Ground
3.Blind Transmission
4.Broadcast
5.Duplex
6.Ground to Air
7.Inter Pilot
8.Non Network

Communication Method
9. Radio telephony Network (Group of Radio telephony
Aeronautical Stations)
10. Primary means of communication
11. Alternative means of Communication
12. Read back

Data link Communication
Controller Pilot Data Link Communication
(CPDLC)
1.Current Data Authority
A designated ground station through which CPDLC com.
currently established
2. Down stream Data Authority
A designated ground system, different from the current data
authority, through which the pilot can contact an appropriate ATC unit

Data link Communication
3. Next data Authority
The Ground system so designated by the current data authority
through which an onward transfer of communications and
control can take place.
4. “Pilot-controller” system. Air-ground
Radiotelephony facilities implemented primarily to provide a means
of direct communication between pilots and controllers

Miscellaneous Data
1.Air Report
2.Altitude-Measured for MSL
3.Flight Level
4.Height
5.Aeronautical Telecommunication Log
6. Human performance. Human capabilities and limitations which
have an impact on the safety and efficiency of aeronautical operations.

Saturday, February 20, 2016Airports Authority of India
Flight Level/Altitude/Height

Administrative Provision
Division of service
1.Aeronautical Fixed Service
2.Aeronautical Mobile Service
3.Aeronautical Radio Navigation Service
4.Aeronautical Broadcasting Service

Hours of Service
1.AIP India Vol-II AD 2.3
In India the Aeronautical telecommunication agencies
designated to receive information regarding change in hours
of service are:-The International NOTAM offices,
(AFTN address)
1.Chennai VOMMYNYX
2.Delhi VIDPYNYX
3.Kolkata VECCYNYX
4. Mumbai VABBYNYX

General Procedure of Services
1.Extn of Service & closing down Stations
2.Acceptance, Transmission & delivery of
Messages
3.Time System
4.Record of Log
a.Message – time of Receipt
b.Written log

Record of communications
a)The name of the agency operating the station;
b)The identification of the station;
c)The date;
d)The time of opening and closing the station;
e)Signature of each operator, with time.
f)All distress communications and action thereon;
g)A brief description of communication/interruption;

Abbriviation & Codes
Doc 8400
Vol-ii contains No of provision relating to
Primarily developed ITA2 & 3 Low modulation rates.
Exchange of
Information
IA-5 for medium & higher signaling rates

Radio Regulations
All references to radio regulations are
to be published by ITU

EIGHT LETTERS ADDRESSEE
INDICATOR USED IN AFTN
ED(ATM)/ DARA(O) VIDDYXAA
DARA(P) VIDDYXAB
CHAIRMAN VIDDYXAC
GM(ADMIN) VIDDYXAD
MEMBER(P) VIDDYXAE
MEMBER(FIN) VIDDYXAF
GM(LEGAL CELL) VIDDYXAG
ED/GM(FIN) VIDDYXAH
ED/GM(IPC) VIDDYXAI
ED/GM(COMMERCIAL) VIDDYXAJ
ED/GM-CNS(P) VIDDYXAL
GM(N AND S) VIDDYXAM
MEMBER(OPS) VIDDYXAO
MEMBER(P AND A) VIDDYXAP
GM EQPT ( GM MATERIAL) VIDDYXAQ
I/C CONTROL ROOM VIDDYXAR
ED/GM (P AND A) VIDDYXAS
GM (T AND C) VIDDYXAT
ED(VIGILANCE) VIDDYXAV
ED(ENGG) VIDDYXAW
AIS SECTION VIDDYXAX
ED(AVN SAFETY) VIDDYXAY
SIGNAL CENTRE VIDDYFYH
ED(IT) VIDDYFIT
ED(COMMUNICATION) VIDDYXAK
DIRECTORATE OF CMC VIDDYXAU

SAFDARJUNG AIRPORT
CHIEF PILOT VIDDYQYC
GM(RCDU) VIDDYQYX
GM(CRSD) VIDDYKYX
GM(E AND M WORKSHOP) VIDDYUYE
SIGNAL CENTRE VIDDYFYS

Message Format
ITA-2 5parts
&
IA-5 3 parts

Inter-Centre Communications
(ICC)
a)Flight notification;
b)Flight coordination;
c)Transfer of control and communications;
d)Flight planning;
e)Airspace management; and
f)Air traffic flow management

ATN (Aeronautical Telecommunication
Network)
1)ATN is a global aviation standard telecommunications
network recommended by ICAO to provide seamless
Air/Ground AND Ground/Ground Communication
services.
2) It is a dynamic telecommunications network
designed to support projected traffic growth due to
Air/Ground Service advances and other new emerging
Ground/Ground applications.

ATN End System
1)ATS Message Server
2)An ATS Message user agent
3)AFTN/AMHS Gateway
4)CIDIN/AMHS Gateway Connection may be established
over the internet communication Services

ATN Applications
ATN G/G applications, such as;
-AMHS(ATS Message Handling System)
-AIDC(ATS Inter-facility Data Communications)
ATN A/G applications, such as;
-CPDLC(Controller Pilot Data Link Communications)
-Context Management(CM)

ATN Network Protocols
The ATN Router shall support:
– ISO/IEC 8473 Connectionless Network Protocol (CLNP)
– ISO/IEC 10747 Inter-Domain Routing Protocol (IDRP)
– ISO/IEC 9542 End System to Intermediate System (ES-IS)
routing exchange protocol
– ISO/IEC 10589 Intra-Domain Routing for Intermediate-Systems
to Intermediate-System Protocol (IS-IS)
The ATN End System (ES) shall support:
– CLNP
– ES-IS routing protocol exchange

ATN Router Network
• A/G ATN Router:
– Mobile ATN router: located in aircraft and interfaces with
mobile ES and transmission media (VHF radio/Satellite/VDL).
– A/G ATN Ground based ATN router: co-located at the A/G
transmission station and interface with other G/G ATN routers
and transmission media.
• G/G ATN Router:
– Located at the ACC to interface with ES and other G/G ATN
Routers (intra and inter-domain Routers and A/G ground based
Routers as required)

Asia/Pacific ATN Regional Backbone

AMHS (ATS Message Handling
Service)
AMHS is a message handling system, which;
-Processes Flight Plans, NOTAM, etc….
-Only processes messages to the end user of its
domain
-Performs gateway conversion between AFTN and
AMHS and between CIDIN and AMHS

AIDC (ATS Inter facility Data
Communication)
Support the following operational services
a)Flight notification;
b)Flight coordination;
c)Transfer of executive control;
d)Transfer of communications; &
e)Transfer of general information (Flight related data or
free text messages, i.e. unstructured)

AMHS
Description and
Implementation

Aeronautical Message HandlingAeronautical Message Handling
System (AMHS)System (AMHS)
AMHS is a message handling system that allows Office of Air
Traffic Services (ATS) Messages to be exchanged between
service users. It based on ISO/IEC 10021 or ITU-T X.400.
AMHS message service provides Basic Service and Extended
Service
• Basic Service - Based on ISO/IEC 10021: 1990
• Extended Service - Based on ISO/IEC 10021: 1999
Extended Service is a superset of Basic Service, support more
complex message structures (body parts), use of the directory
service, and support security

ObjectiveObjective

ICAO 9896
BBIS
UA
AFTN Gateway
TCP/IP
MTA
OSI
ICAO 9880
ATN SARP
9705
Flight plan/clearance
AIDC
Meteorological
Oceanic Tracking System
ATN
Implementation DocumentsImplementation Documents

AFTN/AMHS Gateway
ATS Message Server
MTA MS
UA
AFTN
component
ATN
component
MTCU
AFTN
• MTA (Message Transfer Agent)
Send out/Receive ATN Message
• MS (Message Store)
• AFTN (Aeronautical Fixed Telecommunication Network)
• MTCU (Message Transfer and Control Unit) provides interface
between the ATN and AFTN components.
• UA (User Agent) provide interface for user sends or gets mail
AMHSAMHS

Aeronautical
Telecommunications
Network (ATN)
AFTN
Switch
AFTN Terminals
AFTN/
AMHS GWAMHS GW
ATS
MessageMessage
ServerServer
UA UA UA
AMHS Terminals
ATN G/G
Router
AFTN Terminals
AMHS Terminals
UA
UA
UA
AFTN Terminals
AMHS Terminals
UA
UA
UA
ATN G/G
Router
ATN G/G
Router
Combination
AFTN/AMHS Gateway
ATS Message Server
Combination
AFTN/AMHS Gateway
ATS Message Server
AFTN
Switch
AFTN
Switch
MTCU
MTA
MS
MTA
MS
ATN G/G
Router
MS
MTA
MTCU
MS
MTA
AMHS Basic ServiceAMHS Basic Service

ATS Message ServerATS Message Server

Federal Aviation
Administration 42
7. Last element of the trace information
8. Arrival/submission time
9. Transfer destination and time
10. Recipient name
11. Delivery time
12. Delivery and non delivery reports
1. Message identifier
2. Priority
3. Content type
4. Originator name
5. Recipient name
6. Message content size
ATS Message ServerATS Message Server

Federal Aviation
Administration 43
ATS Message User Agent (UA)ATS Message User Agent (UA)

Federal Aviation
Administration 44
AFTN/AMHS GatewayAFTN/AMHS Gateway

Federal Aviation
Administration 45

Federal Aviation
Administration 46

Federal Aviation
Administration 47Airports Authority of India Saturday, February 20, 2016
Starting Point – Heterogeneous AFTN Environment

Federal Aviation
AMHS Transition Strategy – How ANSPs proceed

Federal Aviation
AMHS Transition Strategy – with new AFTN Switch

Federal Aviation
AMHS Transition Strategy – with existing AFTN
Switch

Federal Aviation
Local Issue – Upgrade of existing ATC Systems

Federal Aviation
AMHS Transition Strategy of ANSPs
Long-term, “step-by-step” Transition fromLong-term, “step-by-step” Transition from
AFTN to AMHSAFTN to AMHS
2007
AFTN
Mixed Operation of
AFTN and AMHS
20??
AMHS
Residuals
ANSPs in general had come to thisANSPs in general had come to this
ConclusionConclusion

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