Iec 62320-2-2016.Pdf

IEC 62320 2 Edition 2 0 201 6 1 0 REDLINE VERSION Maritime navigation and radiocommunication equipment and systems – Automatic identification system (AIS) – Part 2 AIS AtoN Stations – Operational and[.]

IEC 62320- 2

Editio 2.0 2 16-10

Automat ic ident ificat ion syst em (AIS) –

Part 2: AIS At oN St at ions – Operat ional and per ormance requirement s, met hods

oft est ing and required t est results

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IEC 62320- 2

Edit io 2.0 2 16-10

Automat ic ident ificat ion syst em (AIS) –

Part 2: AIS At oN St at ions – Operat ional and per ormance requirement s,

met hods of t est ing and required t est result s

FOREWORD 9

1 Sco e 1

2 Normative ref eren es 1

3 Terms, def i ition an a breviation 12 3.1 Terms an def i ition 12 3.2 Ab reviated terms 12 4 Des ription 13 4.1 Typ s of AIS AtoN station 13 4.2 Typ 1 AIS AtoN station 16 4.2.1 Type 1 AIS AtoN station Characteristic 16 4.2.2 Ca a i ty 18 4.2.3 Type 1 AIS AtoN station – Alternatives 18 4.3 Typ 2 AIS AtoN station 19 4.3.1 Type 2 AIS AtoN station Characteristic 19 4.3.2 Ca a i ty 19 4.3.3 Control receiver 19 4.3.4 Type 2 AIS AtoN station – Alternatives 19 4.4 Typ 3 AIS AtoN Station 2

4.4.1 Type 3 AIS AtoN station Characteristic 2

4.4.2 Type 3 AIS AtoN station Ca a i ty 2

4.4.3 AIS receiver (AIS Rx) 2

4.4.4 Type 3 AIS AtoN station – Alternatives 2

4.5 Optional direct config ration via VDL ( yp s 2 an 3) 21

4.6 Optional config ration via VDL u in c ainin of AIS AtoN Station (Typ s 2 and 3) 21

5 Req irements f or AIS AtoN station 2

5.1 Phy ical layer req irement 2

5.1.1 Tran mit er req irements 2

5.1.2 Receiver req irements 2

5.1.3 Power con umption 2

5.1.4 En ironmental req irements 2

5.2 Lin layer req irements 2

5.2.1 General 2

5.2.2 AIS Mes ages 2

5.2.3 Sy c ronisation 2

5.2.4 VDL ac es s hemes 2

5.2.5 Autonomou mode 3

5.2.6 Electronic p sition fix s stem 3

5.2.7 Bui t-in integrity test 3

5.3 Req irements f or the Config ration method 3

5.3.1 General 3

5.3.2 Alternative for typ s 1, 2 an 3 3

5.3.3 Chainin of AIS AtoN station 3

5.4 Re e t bro d ast of active AIS-SART mes age 3

5.5 Other req irements 3

5.5.2 Man f acturer’s inf ormation 3

5.5.3 Markin an identification 3

5.5.4 Ad itional con ection p ints 3

6 Tests of AIS AtoN station – Method of me s rement an req ired res lts 3

6.1 General 3

6.2 Test con ition 3

6.2.1 Normal test con ition 3

6.2.2 Extreme test con ition 3

6.2.3 Stan ard test en ironment 4

6.2.4 Test sig als 4

6.2.5 Ar an ements for test sig als a pled to the receiver input 4

6.2.6 En oder f or receiver me s rements 4

6.2.7 Waiver f or receivers 4

6.2.8 Imp dan e 4

6.2.9 Artificial anten a (d mmy lo d) 4

6.2.10 F ci ties for ac es 4

6.2.11 Modes of o eration of the tran miter 4

6.2.12 Me s rement u certainties 4

7 AIS AtoN Station RF tests 4

7.1 RF tests ( ran mit er an receiver) TDMA tran miter 4

7.1.1 General 4

7.1.2 Freq en y er or 4

7.1.3 Car ier p wer 4

7.1.4 Mod lation sp ctrum sloted tran mis ion 4

7.1.5 Tran mit er test seq en e an mod lation ac urac 4

7.1.6 Tran mit er output p wer vers s time f un tion (FATDMA an RATDMA) 4

7.2 TDMA receivers ( yp s 2 an 3) 4

7.2.1 Sen itivity 4

7.2.2 Er or b haviour at hig input levels 4

7.2.3 Co-c an el rejection 5

7.2.4 Adjacent c an el selectivity 51

7.2.5 Spuriou resp n e rejection 5

7.2.6 Inter mod lation resp n e rejection 5

7.2.7 Bloc in or desen itization 5

7.3 Con u ted spuriou emis ion at the anten a 5

7.3.1 Spuriou emis ion f om the receiver 5

7.3.2 Spuriou emis ion f om the tran mit er 5

8 Fu ctional tests 5

8.1 Tests for Config ration method 5

8.1.1 General 5

8.1.2 Con g re test Con g ration f or Mes age 21 5

8.1.3 Sc ed le mode A FATDMA Mes age 21 (sin le re ort, alternatin c an el o eration) 5

8.1.4 Sc ed le mode B FATDMA Mes age 21 (d al re ort, d al c an el o eration) 6

8.1.5 Sc ed le mode C FATDMA Mes age 21 (sin le re ort, sin le c an el o eration) 6

8.1.6 Sc ed le mode A RATDMA Mes age 21 (Typ 3) (sin le re ort,

8.1.7 Sc ed le mode B RATDMA Mes age 21 (Typ 3) (d al re ort, d al

c an el o eration) 6

8.1.8 Sc ed le mode C RATDMA Mes age 21 ( yp 3) (sin le c an el o eration) 6

8.1.9 Ad res ed binary data Sc ed led tran mis ion of Mes age 6 6

8.1.10 Test Sc ed led tran mis ion of Mes age 8 6

8.1.11 AIS AtoN config ration Sc ed led tran mis ion of Mes ages 12 6

8.1.12 AIS AtoN config ration Sc ed led tran mis ion of Mes ages 14 6

8.1.13 Un c ed led tran mis ion 6

8.2 Sy c ronisation ac urac 6

8.2.1 Implemented s n hronisation modes an s n hronisation er or 6

8.2.2 Sy c ronisation test without UTC ( yp s 2 an 3) 6

8.3 Tests for EPFS 6

8.3.1 Position source 6

8.3.2 In al d p sition 6

8.3.3 Off -p sition monitor 6

8.4 Ad itional Receive ad res ed mes ages ( yp s 2 an 3) 6

8.4.1 Purp se 6

8.4.2 Method of me s rement 6

8.4.3 Req ired res lts 6

8.5 Inter ogation resp n e (Typ 3) 6

8.5.1 Purp se 6

8.5.2 Method of me s rement 6

8.5.3 Req ired res lts 6

8.6 Re e t AIS-SART mes ages 6

8.6.1 Purp se 6

8.6.2 Method of me s rement 6

8.6.3 Req ired res lts 6

8.7 Ad itional fu ctional ty as implemented by the man facturer 6

8.7.1 Test for con g ration of the receiver turn-on times ( yp s 2 an 3) 6

8.5.2 Test for con g re pro rietary AtoN control

8.5.3 Test for con g ration of p ylo d re-bro d ast

8.7.2 Test for con g ration of p ylo d tran mis ion 7

8.7.3 Test for f orced bro d ast 7

8.7.4 Test for version information 7

8.7.5 Test for AFC DCR – AtoN fu ction ID ca a i ty 7

8.7.6 Test for as ig in an en ryption key f or VDL con g ration 7

8.7.7 Test for VDL config ration u in c aining (Typ s 2 an 3) 7

8.8 Test f or BI T 8

8.8.1 Purp se 8

8.8.2 Method of me s rement 81

8.8.3 Req ired res lts 81

8.9 Tran miter s utdown proced re 81

8.9.1 Purp se 81

8.9.2 Method of me s rement 81

8.9.3 Req ired res lts 81

8.10 Test f or Power s p ly 81

8.8.1 Average p wer con umption

8.10.2 Method of me s rement 8

8.10.3 Req ired res lts 8

8.1 En ironmental tests 8

8.12 External remova le media 8

8.12.1 Purp se 8

8.12.2 Method of me s rement 8

8.12.3 Req ired res lts 8

8.13 Other tests 8

8.13.1 Qual ty as uran e 8

8.13.2 Ad itional f eatures 8

8.13.3 Man al 8

8.13.4 Markin an identification 8

8.14 Optional TAG bloc en a s lation 8

8.14.1 Ap l cation 8

8.14.2 TAG bloc ca a i ties 8

8.14.3 Activation of source-identification for output 8

8.14.4 Activation of Destination-identification 8

8.14.5 Activation of Source-identification f or input 8

8.14.6 Use of multiple source-identif i ation f or input 8

8.14.7 Test of groupin by TAG bloc s f or output 8

8.14.8 Test of UNIX time output 8

8.14.9 Test of l ne-cou t output 8

An ex A (informative) Pro osed ad itional IEC 61 6 AIS AtoN Station senten es

An ex A (informative) AIS AtoN station config ration stru tures 10 A.1 AIS AtoN station config ration stru tures 10 A.2 MMSI Identification con g ration f or comman (AID) 10 A.3 Exten ed/general AtoN station config ration comman (ACE/ACF/ACG) 10 A.4 Config re bro d ast rates f or AtoN Station mes age comman (CBR) 10 A.5 AKE – Config ration of en ryption key (CEK) 1 2 A.6 Config re the receiver turn-on times comman (ARW) 1 2 A.7 Config re Pro rietary AtoN control comman (MCR) 1 4 A.8 MPR – Config ration of mes age p ylo d re ro d ast comman f or bro d ast (MEB) 1 5 A.9 F rced bro d ast comman (AFB) .1 6 A.10 Version inf ormation (VER) 1 7 A.1 AFC – AtoN fu ction ID ca a i ty 1 8 A.12 Query via the VDL f or ACE an ACF Mes age 21 content 1 9 A.13 General q ery req est 121 A.14 Config ration of receiver o erational times comman (COP) 12 A.15 Config ration of mes age p ylo d for bro d ast (MEB) 12 A.16 Query resp n e via the VDL f or Mes age 21 config ration 12 An ex B (normative) Mes age 21 – AtoN statu bits 12 Biblogra h 13 Fig re 1 – Fu ctional bloc diagram of a Typ 1 AIS AtoN Station 17 Fig re 2 – Fu ctional bloc diagram of a typ 2 AIS AtoN station 19 Fig re 3 – Fu ctional bloc diagram of a typ 3 AIS AtoN station 2

Fig re 5 – Power vers s time mas 31

Fig re 6 – Re ortin modes f or Mes age 21 3

Fig re 7 – Bloc diagram of AIS AtoN test setup 4

Fig re 8 – Format for re e tin f our p c et clu ter 41

Fig re 9 – Me s rement ar an ement f or f req en y er or 4

Fig re 10 – Me s rement ar an ement f or car ier p wer 4

Fig re 1 – Emis ion mas 4

Fig re 12 – Power vers s time mas

Fig re 12 – Me s rement ar an ement f or mod lation ac urac 4

Fig re 13 – Me s rement ar an ement f or sen itivity 4

Fig re 14 – Me s rement ar an ement f or er or b haviour 5

Fig re 15 – Me s rement ar an ement f or co-c an el rejection 5

Fig re 16 – Me s rement ar an ement with mes ages f or adjacent c an el selectivity 51

Fig re 17 – PER/BER or SINAD me s rin eq ipment 5

Fig re 18 – Me s rement ar an ement f or inter mod lation 5

Fig re 19 – Me s rement ar an ement f or bloc in or desen itisation 5

Fig re 2 – Test s enario f or b sic c ainin test 7

Fig re 21 – Test s enario f or l ne r c ainin test 7

Fig re 2 – Test s enario f or f orked c ainin test 7

Fig re B.1 – Use of AtoN statu bits as IALA A-12 Page ID 7 12 Ta le 1 – Des ription of AIS AtoN Station 14 Ta le 2 – Use of VDL mes ages 15 Ta le 3 – Summary of o tional Typ 1 AIS AtoN Station mes ages 18 Ta le 4 – Chainin of AIS AtoN Station

Ta le 4 – Summary of o tional Typ 3 AIS AtoN Station mes ages 21

Ta le 5 – Con g ration of AIS AtoN station via VDL 2

Ta le 6 – Req ired p rameter setin s f or an AIS AtoN Station 2

Ta le 7 – Req ired set in s of ph sical layer con tants 2

Ta le 8 – Mod lation p rameters of the ph sical layer of the AIS AtoN station 2

Ta le 9 – Minimum req ired TDMA tran mit er c aracteristic 2

Ta le 10 – Req ired receiver c aracteristic 2

Ta le 1 – Maximum al owed time er or 2

Ta le 12 – Def i ition of timin f or Fig re 5 31

Ta le 13 – AIS AtoN Station re ction to BI T con ition 3

Ta le 14 – Stan ard senten es 3

Ta le 15 – DCR Ca a i ties 3

Ta le 16 – Optional TAG Bloc fu ction 3

Ta le 17 – Content of first two p c ets 41

Ta le 18 – Fixed PRS data derived fom ITU-T O.15 41

Ta le 19 – Maximum values of a solute me s rement u certainties 4

Ta le 2 – Pe k feq en y deviation vers s time 4

Ta le 2 – Freq en ies for inter modulation test 5

Ta le A.1 – Parameter set in in Mes age 2 for AIS AtoN Station a pl cation 10

Ta le A.2 – Parameter set in in Mes age 6 for AIS AtoN Station a pl cation 10

Ta le A.3 – Mes age 2 or 6 fu ction identif ier u ed for con g ration an q ery via

the VDL 101

AtoN name) 10

c aracters of AtoN name) 10

c aracters of AtoN name) 10

Ta le A.16 – Config ration via the VDL f or FATDMA/CSTDMA 10

Ta le A.21 – Config ration via the VDL f or ARW receiver turn-on times 1 3

Ta le A.2 – Query resp n e via the VDL f or ARW receiver turn-on times 1 4

Ta le A.2 – Config ration via the VDL f or MCR pro rietary inf ormation 1 4

Ta le A.2 – Query resp n e via the VDL f or MCR pro rietary information 1 5

Ta le A.3 – Query resp n e via the VDL f or VER 1 8

Ta le A.3 – Query resp n e via the VDL f or AFC fu ction ID 1 9

Ta le A.3 – Query resp n e via the VDL f or Mes age 21 content 121

Ta le A.4 – Query resp n e via the VDL, f irst 12 c aracters of AtoN name 12

INTERNATIONAL ELECTROTECHNICAL COMMISSION

_

MARITIME NA VIGATION A ND RA DIOCOMMUNICA TION EQUIPMENT

AND SYSTEMS – AUTOMA TIC IDENTIFICA TION SYSTEM (AIS) –

Part 2: A IS A toN Stations – Operational and perf ormance

requirements, methods of testing and required test results

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DISCLAIMER

This Re l ne v rsion is not a off icial IEC Sta dard a d is inte de only to provide

the u er with a indic tion of wh t c a ge ha e be n ma e to the pre ious version

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International Stan ard IEC 6 3 0-2 has b en pre ared by IEC tec nical commit e 8 :

Maritime navigation an radiocommu ication eq ipment an s stems

This secon edition can els an re laces the first edition, publ s ed in 2 0 , an con titutes

a tec nical revision

This edition in lu es the f ol owin sig ificant tec nical c an es with resp ct to the previou

edition:

• additional c b r sec rity me s res;

• updated des ription of con g ration via VDL;

• updated VDL ac es s heme req irements;

• new PI senten es an VDL mes age stru tures with ad ed des ription for o tional TAG

bloc s;

• ad ed req irement f or at le st one stan ard method f or config ration u in Stan ard PI

senten es;

• updated test method and updated An exes

The text of this standard is b sed on the f ol owin doc ments:

Ful inf ormation on the votin f or the a proval of this stan ard can b fou d in the re ort on

votin in icated in the a ove ta le

This publ cation has b en draf ted in ac ordan e with the ISO/IEC Directives, Part 2

A l st of al p rts in the IEC 6 3 0 series, publ s ed u der the general title Maritime

n vigat ion a d rad ioc mmu ic t ion e uipme t a d syst ems – Automatic id ent ific t ion system

(AIS), can b f ou d on the IEC we site

The commit e has decided that the contents of this publ cation wi remain u c an ed u ti

the sta i ty date in icated on the IEC we site u der "htp:/we store.iec.c " in the data

related to the sp cif i publ cation At this date, the publ cation wi b

• recon rmed,

• with rawn,

• re laced by a revised edition, or

• amen ed

A bi n ual version of this publcation may b is ued at a later date

IMPORTANT – The 'colour inside' logo on the cov r pa e of this publ c tion in ic te

that it contains colours whic are considere to be us f ul f or the cor e t

understa din of its conte ts Us rs s ould th refore print this doc me t using a

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MA RITIME NA VIGATION A ND RA DIOCOMMUNICA TION EQUIPMENT

Part 2: A IS A toN Stations – Operational and perf ormance

requirements, methods of testing and required test results

This p rt of IEC 6 3 0 sp cifies the o erational an p rf orman e req irements, method of

testin an req ired test res lts f or AIS AtoN Station comp tible with the p rf orman e

stan ard ado ted by IMO Resolution MSC.7 (6 ), An ex 3, Universal AIS It in orp rates

the tec nical c aracteristic of non-s ip orne AIS AtoN eq ipment, in lu ed in

Recommen ation ITU-R M.13 1 an IALA Recommen ation A-12 Where a plca le, it also

takes into ac ou t the ITU Radio Reg lation This stan ard takes into ac ou t other

as ociated IEC International Stan ard an existin national stan ard , as a pl ca le

This doc ment is a pl ca le for automatic identification s stem (AIS) in tal ation on aid to

navigation (AtoN)

The f ol owin ref eren ed doc ments are in isp n a le for the a pl cation of this doc ment

For dated ref eren es, only the edition cited a pl es F r u dated referen es, the latest edition

of the ref eren ed doc ment (in lu in an amen ments) a pl es

IEC 6 9 5, Marit ime n vigatio a d rad ioc mmu ic tio e uipme t a d systems – Ge eral

re uireme ts – Methods oft est ing a d re uired test resul ts

IEC 6 2 7-1, Maritime n vig tion a d rad io ommu ic tion e uipme t a d systems – Clas B

ship orn e uipme t of the a t omatic id entific tion syst em (AIS) – Part 1: Carier-se se time

d ivision mult iple a c s (CSTDMA) tec niqu s

IEC 6 3 0-3:2 15, Marit ime n vigat io a d rad ioc mmu ic t ion e uipme t a d systems –

ITU Radio Reg lation , Ap en ix 18, Ta le oftra smitt in fe u n ies in th VH F maritime

mo il b nd

ITU-R Recommen ation M.13 1-5:2 14, Te h ic l c ara t erist ics for an a tomat ic

ide tific t io system using time d ivisio multiple a c s in the VH F maritime mo il e b nd

IALA Recommen ation A-12 , Th Use of Aut omatic Id entific tion System (AIS) in Marine

Aids t o Navig tion

3 Terms, def initions and abbreviations

device or s stem external to ves els that is desig ed an o erated to en an e the safe an

ef ficient navigation of ves els an /or ves el traff i

AIS AtoN station whic is ph sical y located on the aid to navigation

3.1.4

s nthetic AIS AtoN

Mes age 21 tran mited f om an AIS station located remotely f rom the aid to navigation

3.1.5

virtual AIS AtoN

Mes age 21 tran mit ed fom an AIS station for an aid to navigation whic do s not ph sical y

exist

3.2 Abbre iate terms

AIS automatic identif i ation s stem

BI T bui t-in integrity tests

GNSS glo al navigation satel te s stem

IMO International Maritime Organization

MMSI Maritime Mo i e Service Identity

NRZI non- eturn to zero in erted

PER p c et er or rate

PI presentation interf ace

RAIM receiver autonomou integrity monitorin

RATDMA ran om ac es time division multiple ac es

SBAS satel te-b sed au mentation s stem

SOTDMA self -organizin time division multiple ac es

VSWR voltage stan in wave ratio

4 Description

4.1 Type of AIS AtoN stations

There are thre typ s of AIS AtoN station as defined in Ta le 1 The AIS AtoN station may

Table 1 – De cription of AIS AtoN Stations

As d fin d b th ma ufa turer

4.2 Type 1 AIS AtoN station

Typ 1 AIS AtoN station has no receiver It tran mits on FATDMA slots given in its

config ration Fig re 1 s ows the f un tional bloc diagram of a Typ 1 AIS AtoN station

Figure 1 – Fu ctional bloc dia ram of a Type 1 AIS AtoN Station

The c aracteristic of the typ 1 AIS AtoN station are:

• tran mits u in FATDMA;

• no receive ca a i ty, theref ore:

– can ot b config red via the VDL,

– can ot s n hronise to other station ;

• config ration inter ace as defined by the man f acturer;

4.2.1.7 Configuration

The interace u ed to con g re the AIS AtoN station

Typ 1 AIS AtoN station is cap ble of tran mitin Mes age 21 u in FATDMA

4.2.3.1 Addition l control er c pabi ity

In ad ition to Mes age 21, the control er s al comp se o tional output mes ages to the VDL

NOT Also the Typ 1 AIS AtoN station s ould not retran mit the ad res ed binary mes age

(Mes ages 6 an 12) The n mb r of retries s ould b set to 0

Table 3 – Summary of optional Type 1 AIS AtoN Station me s ge

4.2.3.2 Configuration method

The typ 1 AIS AtoN station may b con g red u in stan ard con g ration senten es

The external inter ace(s) may b u ed for commu ication with external devices (f or example

AtoN lantern, AtoN p wer s p ly, h drological an mete rological in truments, etc.)

4.2.3.6 Sy thetic a d Virtual AtoN

The AIS AtoN station may b ca a le of tran mitin Mes age 21 for s nthetic an virtual AIS

AtoN

4.3 Type 2 AIS AtoN station

Typ 2 AIS AtoN station tran mits on FATDMA slots

Typ 2 AIS AtoN station has a control receiver f or mes ages containin config ration

senten es (see An ex B NMEA 018 :Ju e 2 12) Fig re 2 s ows the fu ctional bloc

diagram of a typ 2 AIS AtoN station

Fig re 2 – Fu ctional bloc dia ram of a type 2 AIS AtoN station

The c aracteristic of the typ 2 AIS AtoN station are:

• tran mits u in FATDMA;

• lmited receiver ca a i ty, theref ore can ot maintain a slot ma an can ot u e RATDMA

ac es s heme;

• config ration interf ace as def i ed by the man facturer;

• d al c an el tran mis ion

A typ 2 AIS AtoN station has the ca a i ties of a typ 1 AIS AtoN station, with the ad ition

of a control receiver

4.3.3 Control re eiv r

The typ 2 AIS AtoN station s al have a receiver o eratin on an AIS c an el f or control

f un tion only

The typ 2 AIS AtoN station alternatives in lu e al the typ 1 AIS AtoN station alternatives as

4.4 Type 3 AIS AtoN Station

Typ 3 AIS AtoN station has AIS receive an tran mit ca a i ties in ac ordan e with

Recommen ation ITU-R M.13 1 Fig re 3 s ows the fu ctional bloc diagram of a typ 3 AIS

AtoN station

Fig re 3 – Fu ctional bloc dia ram of a type 3 AIS AtoN station

The c aracteristic of the Typ 3 AIS AtoN station are:

• tran mits tran mis ion u in FATDMA

A typ 3 AIS AtoN station has the ca a i ty of a typ 1 AIS AtoN station, with the ad ition of

AIS receivers

4.4.3 AIS re eiv r (AIS Rx)

The typ 3 AIS AtoN station s al have two AIS (TDMA) receivin proces es to prod ce an

maintain a slot ma for autonomou interaction with the VDL

The typ 3 AIS AtoN station alternatives in lu e al the typ 1 an typ 2 AIS AtoN station

alternatives, with the ad ition of 4.4.4.2, 4.4.4.3 an 4.4.4.4

4.4.4.2 Addition l control er c pabi ity

In ad ition to Mes age 21, the control er comp ses o tional output mes ages to the VDL as

des rib d in Ta le 4 No other mes ages are al owed, ex e t re e tin of SART mes ages,

Table 4 – Summary of optional Type 3 AIS AtoN Station me s ge

6 Bin ry a dre s d me s g Bin ry d ta for a dre s d

c mmu ic tio

Mo itorin of AtoN e uipme t

7 Bin ry a k owle g me s g Ac n wle g of a dre s d bin ry

Warn AtoN malfu ctio in

13 Saf ety relate a k owle g

4.4.4.4 In ire t a d s maphore s nc ronis tion

A typ 3 AIS AtoN station may o tional y s n hronise to other AIS station u in UTC in irect

s n hronisation or other AIS station actin as sema hore

4.6 Optional configuration via VDL u ing c aining of AIS AtoN Station

(Type 2 a d 3)

A c ain of AIS AtoN station al ows f or commu ication fom an config rin AIS Base station

to AIS AtoN Station that are remotely located an may b u a le to commu icate directly

the inten ed recipient is re c ed, se Fig re 4

The con e t req ires an AIS AtoN station to have k owled e of other AIS AtoN station in the

that is in the direction of the Base config rin AIS station A “c i d station” is a station that is

directed away f rom a Base config rin AIS station In order to prevent u neces ary

retran mis ion of the mes ages, e c AIS AtoN station in a c ain may s al have only one

p rent, but may have multiple c i dren ( his in lu es al s nthetic an virtual AIS AtoN)

Mes ages 6 an or 2 are is u ed for the tran fer of the en rypted binary field It is as umed

that the whole c ain has the same en ryption key The source ID an “MMSI of AtoN” field of

Mes age 6 or 2 are is u ed to determine whether the received mes age is f rom a p rent or

c i d station If not, then the received mes age is ig ored

The en rypted binary data f ield is decrypted to o tain the fu ction ID an “MMSI of AtoN” If

the source ID of the mes age is set to the p rent station ID an the fu ction ID is a

config ration, q ery req est or fu ction, an the MMSI of the AIS AtoN station is in the c ain,

then the mes age s al b retran mited, with the source ID set to its own MMSI If the source

then the mes age s al b retran mited, with the ”MMSI of AtoN” destination ID set to the

p rent MMSI An other combination of k own or u k own MMSI is ig ored (se Ta le 5)

AtoN station s al at empt to decrypt the binary data field, an c ec that it, or one of its

c i dren, is the inten ed recipient of the mes age, b fore proces in the mes age an further

Figure 4 – VDL conf ig ration de ision tre

Table 4 – Chainin of AIS AtoN Stations

5 Requireme ts f or AIS A toN stations

5.1 Phy ic l la er re uireme t

5.1.1 Tra smit er re uireme ts

5.1.1.1 Cha nel

The AIS AtoN station s al o erate on d al c an els, c an el 1 an c an el 2, in the VHF

maritime mo ie service b n , u in 2 kHz b n width, ac ordin to the ITU Radio

Ta le 6 an Ta le 8 are derived fom Recommen ation ITU-R M.13 1 an give the

p rameters req ired for an AIS AtoN station For the me nin of the s mb ls an ad itional

inf ormation (fo tnotes), ref er to the a pro riate section of Recommen ation ITU-R M.13 1

Table 6 – Re uire parameter s t ings f or a AIS AtoN Station

P RFR Re io al fe u n ie Two c a n ls b twe n 15 ,0 5 MHz a d 16 ,0 5 MHz

P T T Tra smiter s tln time (tra smit

Tra smiter o tp t p wer 12,5W or a d fin db ma ufa turer

In ad ition, the con tants of the ph sical layer of the AIS AtoN station s al comply with the

values given in Ta le 7 an Ta le 8

Table 7 – Re uire s t in s of ph sic l la er consta ts

Table 8 – Mod lation parameters of the phy ic l la er of the AIS AtoN station

An automatic tran mit er s utdown s al b provided to en ure that tran mis ion do s not

contin e f or more than 2 s This s utdown s al b in e en ent of the o eratin s stem any

software

5.1.1.5 Tra smit er re uireme ts c ara teristic

The tec nical c aracteristic as sp cified in Ta le 9 s ould a ply to the TDMA tran mit er

Table 9 – Minimum re uire TDMA tra smit er c ara teristic

Carier p wer eror ±1,5 dB (n rmal), ± dB(e treme)

Carier fe u n y eror ± 0 Hz (n rmal), ±1 0 0 Hz (e treme)

2 4 0 Hz ± 4 0 Hz for bits 2, 3 (n rmal a d e treme)

2 4 0 Hz ± 2 0 Hz for bits 4 31 (n rmal 2 4 0 Hz ± 4 0 Hz e treme)

Table 10 – Re uire re eiv r c ara teristic

5.1.3 Power cons mption

The man facturer s al state the average p wer con umed by the AIS AtoN station u der

defined test con ition

5.1.4 Environme tal re uireme ts

The man facturer s al declare the category f or d ra i ty an resistan e to en ironmental

5.2 Link la er re uireme ts

The ln layer sp cifies how data s al b f ormated an tran mited on the VDL

The ln layer req irements are referen ed to Recommen ation ITU-R M.13 1

5.2.2 AIS Me s ge

5.2.2.1 Me s g 21 f ormat a d conte t

5.2.2.1.1 AtoN status bits

The AIS AtoN station s al bro d ast Mes age 21, as defined in Recommen ation ITU-R

M.13 1 In Mes age 21, the statu bits (7 6 5 4 3 2 1 0) are n mb red so that bit 7 is the

most sig if i ant bit, an bit 0 is the le st sig ificant bit The f irst thre bits (i.e 7, 6 an 5)

s al b u ed to define a p ge ID The p ge ID can ran e f om 0 to 7, al owin 8 p ges Page

ID 0 s al not b u ed for the regional/international a pl cation Page IDs 1 to 6 are reserved

5.2.2.1.2 Virtual a d Sy th tic AIS AtoN me s g

An AIS AtoN station, when bro d astin Mes age 21 f or virtual an s nthetic AtoN, s al u e

the MMSIs al ocated to the virtual an s nthetic AtoN as is ued u der the same series for re l

AIS AtoN station For s nthetic AIS AtoN mes ages, the re e t in icator field s al b set to

1, 2 or 3 to sig ify that the mes age is tran mited f om a p sition other than that provided in

5.2.2.2 Addition l me s g s

In ad ition to Mes age 21, the AIS AtoN station may tran mit other mes ages, in ac ordan e

with Recommen ation ITU-R M.13 1 These are s mmarised in Ta le 2

5.2.3 Sy c ronis tion

Sy c ronisation is u ed to determine the TDMA fames an in ivid al slots so that the

tran mis ion of the AIS mes age is p rormed within the desired slot The s n hronisation for

the AtoN AIS station s al b UTC direct

If UTC direct s n hronisation is lost, the AIS AtoN station s al ce se tran mit in or

o tional y b have as declared by the man f acturer

5.2.3.2 Optional indire t s nc ronis tion

When UTC s n hronisation has faied, the typ 3 AIS AtoN station may u e in irect

s n hronisation or s n hronise to a station actin as a sema hore

5.2.3.3 Sy c ronis tion a c ra y

The tran mis ion timin er or, in lu in j t er, of the AtoN AIS s al b within the l mits as

defined in Ta le 1 , ref er in to an ide l tran mis ion as defined by Recommen ation ITU-R

M.13 1

Table 1 – Ma imum al owe time er or

UTC dire t s n hro is tio

The AIS AtoN station may o tional y tran mit Mes ages 6, 7, 8, 12, 13, 14, 2 an 2 The

maximum len th of Mes ages 6, 8, 12, an 14 is thre slots per mes age when u in

FATDMA or RATDMA (if implemented) CSTDMA may b u ed for one-slot mes ages only

5.2.4.2 Type 3 AIS AtoN station

The typ 3 AIS AtoN station s al u e FATDMA an may u e RATDMA (if implemented) for

Mes age 21 The typ 3 AIS AtoN station s al u e the VDL ac es s heme def i ed by its

config ration

Sin le slot binary an saf ety- elated mes ages may b tran mited u in FATDMA, RATDMA

When ena led, ac nowled ement Mes ages 7 an 13 s ould s al b tran mit ed within 4 s

RATDMA s al u e slots ac ordin to Recommen ation ITU-R M.13 1

u it s al an re c − dB b f ore T

B1(se Fig re 5)

The tran mit er s al b turned of f af ter the last bit of the tran mis ion p c et has lef t the

tran mit in u it; nominal tran mis ion en is T

e

Fig re 5 – Power v rs s time ma k

The ac es to the medium is p rormed as s own in Fig re 5 an Ta le 12

Table 12 – Definitions of timing for Figure 5

• 7 8 bits for a thre -slot me s g

A statio ma o c p at ma imum thre c n e utiv slots f or

o e c ntin o s tra smis io Only a sin le a plc tio of th

o erh a (amp u , trainin s q e c , f l g , FCS, b f ferin ) is

re uire for a lo g tra smis io p c et.Th le gth of a lo g

G

En

flaStart

B2–5 dB

5.2.4.5.2 Link s b-la er 1: me ium a c s control (MAC)

Refer to Recommen ation ITU-R M.13 1 an 5.2.3 for s n hronisation

5.2.4.5.3 Link s b-la er 2: data l n s rvic (DL )

Refer to Recommen ation ITU-R M.13 1

5.2.4.5.4 Link s b-la er 3: l nk ma a eme t e tity (LME)

Refer to Recommen ation ITU-R M.13 1

5.2.4.6 CSTDMA VDL a c s mode

The o eration of CSTDMA in the AIS AtoN station s al b in ac ordan e with

Recommen ation ITU-R M.13 1 an tested ac ordin to IEC 6 2 7-1, however the AIS AtoN

station is al owed to u e the same tran mit p wer set in f or CSTDMA as f or RATDMA an

FATDMA

Al CSTDMA tran mis ion s al b lmited to one slot

5.2.5 Autonomous mode

The AIS AtoN station s al alway o erate autonomou ly an determine its own s hed le for

tran mis ion of its mes ages b sed on its con g ration The station s al automatical y

resolve s hed l n con icts with other station when u in CSTDMA an RATDMA

5.2.5.2 Me s g 21 reporting interv ls

In ac ordan e with ITU-R M.13 1, the default re ortin interval for Mes age 21 s al b 3

min This s al b config ra le to other re ortin intervals

The AIS AtoN station s al b con g ra le to decre se the re ortin interval for Mes age 21

• Mode A o eration: Mes age 21 tran mis ion alternates b tween c an el 1 an c an el 2

in a s bseq ent fame that is nominal y one re ortin interval later Mes age 21 content is

updated for e c mes age, or

• Mode B o eration: the same Mes age 21 tran mit ed on c an el 1 an c an el 2 in q ic

(nominal y 4 s) s c es ion The first tran mis ion of e c Mes age 21 may b on either

c an el 1 or c an el 2 The secon tran mis ion s al b on the other c an el, or

• Mode C o eration: Mes age 21 tran mit ed on a sin le c an el, either c an el 1 or

c an el 2 Mes age 21 content updated at e c re ortin interval

Figure 6 – Reporting mode for Me s g 21

5.2.5.3.2 Single c a n l operation f or Me s ge 21

The type 1 an typ 2 AIS AtoN station s al tran mit on the desig ated c an el u in

FATDMA slots of the selected fames in the UTC hour (as p r mode C, Fig re 6)

5.2.6 Ele tronic position fix s stem

5.2.6.1 Position sourc

An EPFS s al b u ed as the source for AtoN p sition re ortin u les a s rveyed p sition is

u ed

If the internal EPFS is a GNSS receiver, it s al me t the f ol owin req irements of the

IEC 61 0 series: p sition ac urac , ac uisition, re-ac uisition, receiver sen itivity, RF

d namic ran e, interf eren e s s e tibi ty, p sition update, f ai ure warnin s, statu in ication

an integrity flag, provide a resolution of one ten-thou an th of a min te of arc an u e WGS

8 datum

If another typ of EPFS is u ed, then it s al me t the req irements of the a plca le stan ard

an u e WGS 8 datum

5.2.6.2 Augme tation s stems

The EPFS may b ca a le of b in cor ected usin an s ita le au mentation s stem (f or

example, SBAS, radio b acon DGNSS, evaluation of Mes age 17, etc.) The man f acturer

s al declare whic au mentation s stems can b u ed, an that the au mentation s stem

do s not ad ersely af fect Mes age 21 tran mis ion

The man facturer s al declare if the EPFS is not ca a le of b in cor ected

5.2.6.3 In al d position

If the EPFS device is u a le to provide a val d p sition f i , then the re orted p sition s al b

lon itu e = 181° = not avai a le = default an latitu e = 91° = not avai a le = default an the

5.2.6.4 Off -position monitorin

If the flo tin AtoN is within its on-p sition lmits, the of f-p sition in icator s al b set to “0”

in the tran mit ed Mes age 21

If a f lo tin AtoN is of-p sition, the AIS AtoN station s al identify this con ition an the of

-p sition in icator s al b set to “1” in the tran mit ed Mes age 21 The re ortin interval

when the AIS AtoN station is of f-p sition s al b determined by its config ration (se

5.2.5.2)

5.2.6.5 Position sourc alternativ s for type 1, 2 a d 3

If a s rveyed p sition is u ed, an EPFS is not req ired

When a s rveyed p sition is u ed, the latitu e an lon itu e field of the tran mited

Mes age 21 s al contain the s rveyed p sition, the “ yp of electronic p sition f i in device”

is set to “7” (s rveyed), the “RAIM-Flag” field is set to “0”, the of f-p sition in icator field is set

to “0” an the “p sition ac urac ” f ield is set in ac ordan e with the ac urac of the s rveyed

p sition (i.e “1” if b t er than 10 m, otherwise “0”

5.2.7 Bui t in inte rity te t

The AIS AtoN station s al have a buit-in integrity test (BI T) proces whic tests for

con ition as des rib d in Ta le 13 If stan ard config ration senten es are u ed, the

warnin /notification con ition s al b sent via senten e ADS The ADS senten e s ould b

output as defined by The man facturer may o tional y output an ALR senten e u in the

Table 13 – AIS AtoN Station re ction to BI T con itions

Re ctio of the A IS A toN statio

0 2 AIS: a te n VSWR e c e s lmit

tra smis io s o aff ecte c a n l

tra smis io s o aff ecte c a n l

5.3 Re uireme ts for the Configuration method

The config ration method s al b as defined by the man facturer an held in non-volati e

memory

Con g ration may u e stan ard con g ration senten es either directly or via the VDL Query

• config re the content f or Mes age 21;

• config re tran mis ion p rameters for Mes age 21 an an other mes ages s p orted by

the man facturer;

• config re the b haviour of the AIS AtoN station when s n hronisation is lost;

• config re the b haviour of the AIS AtoN station when of p sition

The man facturer s al provide a me n to verify config ration an version inf ormation of the

AIS AtoN station

5.3.2 Alternativ f or type 1, 2 a d 3

5.3.2.1 Sta dard IEC 61 6 s nte c s Ge eral

Stan ard PI senten es Ta le 14 provides an overview of the senten es that may b u ed for

config ration of AIS AtoN a pl cation It in lu es existin senten es f rom IEC 61 6 -1 an

Table 14 – Sta dard s nte c s

X: In ic te in ut to or o tp t f rom th AIS AtoN statio

Q: In ic te th t th s nte c ma b e tern ly re u ste u in th IEC 61 6 - sta d rd q ery s nte c s

Table 16 – Optional TAG Bloc f unctions

No ad itional IEC 61 6 -1 senten es are req ired to s p ort this fu ctional ty

5.5 Oth r re uireme ts

5.5.1 Additional fe ture

Ad itional f eatures s al not ad ersely af fect the tran mis ion of Mes age 21

5.5.2 Ma uf acturer’s information

The information s al des rib :

• external inter aces;

• config ration of the AIS AtoN station;

• hardware an electrical sp cification ;

• average p wer con umption;