Technical Provisions for Mode S Services and Extended Squitter
Technical Provisions for Mode S Services and Extended Squitter
Technical Provisions for Mode S Services and Extended Squitter
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DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris<br />
Appendix C C-83<br />
C.4.4.2 ADS-R SURFACE POSITION MESSAGE<br />
The ADS-B Receiving Subsystem receives, decodes <strong>and</strong> processes the “ME” Field of the ADS-R Surface<br />
Position Messages, <strong>and</strong> updates <strong>and</strong> maintains ADS-R Reports with the decoded data in accordance with<br />
§C.3.5. The <strong>for</strong>mat is identical to the ADS-B Surface Position Message specified in section §C.2.3.3 <strong>and</strong><br />
Figure C-2, except that “ME” bit 21 is redefined to be the ICAO/<strong>Mode</strong> A Flag (IMF).<br />
C.4.4.3 ADS-R AIRCRAFT IDENTIFICATION AND CATEGORY MESSAGE<br />
The ADS-B Receiving Subsystem receives, decodes <strong>and</strong> processes the “ME” Field of the ADS-R Aircraft<br />
Identification <strong>and</strong> Category Messages, <strong>and</strong> updates <strong>and</strong> maintains ADS-R Reports with the decoded data in<br />
accordance with §C.3.5. The <strong>for</strong>mat is as specified in section §C.2.3.4 <strong>and</strong> Figure C-4.<br />
Note.— Any Rebroadcast Aircraft Identification <strong>and</strong> Category Message does not contain the IMF bit<br />
since aircraft using an anonymous 24-bit address will not provide identity <strong>and</strong> category in<strong>for</strong>mation.<br />
C.4.4.4 ADS-R AIRBORNE VELOCITY MESSAGE<br />
The ADS-B Receiving Subsystem receives, decodes <strong>and</strong> processes the “ME” Field of the ADS-R Airborne<br />
Velocity Messages, <strong>and</strong> updates <strong>and</strong> maintains ADS-R Reports with the decoded data in accordance with<br />
§C.3.5. The <strong>for</strong>mats are identical to the ADS-B Airborne Velocity Messages specified in section §C.2.3.5.1<br />
<strong>and</strong> Figure C-5 <strong>for</strong> Subtype 1 & 2 Messages, <strong>and</strong> in section §C.2.3.5.2 <strong>and</strong> Figure C-6 <strong>for</strong> Subtype 3 & 4<br />
Messages, except that “ME” bit 9 is redefined to be the ICAO/<strong>Mode</strong> A Flag (IMF)..<br />
Note.— Bit 10 of the “ME” field in ADS-B Version One (1) is the IFR Capability Flag which is not<br />
conveyed in ADS-B Version Two (2) ADS-B Transmitting Subsystems.<br />
C.4.4.5 ADS-R EXTENDED SQUITTER AIRCRAFT STATUS MESSAGE<br />
The ADS-B Receiving Subsystem receives, decodes <strong>and</strong> processes the “ME” Field of the ADS-R <strong>Extended</strong><br />
<strong>Squitter</strong> Aircraft Status Messages, <strong>and</strong> updates <strong>and</strong> maintains ADS-R Reports with the decoded data in<br />
accordance with §C.3.5. The <strong>for</strong>mat is identical to the Aircraft Emergency/Priority Status Message specified<br />
in section §C.2.3.7.3 <strong>and</strong> Figure C-8a, except that “ME” bit 56 is redefined to be the ICAO/<strong>Mode</strong> A Flag<br />
(IMF).<br />
Draft<br />
C.4.4.6 ADS-R TARGET STATE AND STATUS MESSAGE<br />
The ADS-B Receiving Subsystem receives, decodes <strong>and</strong> processes the “ME” Field of the Rebroadcast<br />
Target State <strong>and</strong> Status Messages, <strong>and</strong> updates <strong>and</strong> maintains ADS-R Reports with the decoded data in<br />
accordance with §C.3.5. The <strong>for</strong>mat is identical to the ADS-B Target State <strong>and</strong> Status Message<br />
(Subtype=1) in section §C.2.3.9 <strong>and</strong> Figure C-9, except that “ME” bit 51 is redefined to be the ICAO/<strong>Mode</strong> A<br />
Flag (IMF).<br />
C.4.4.7 ADS-R AIRCRAFT OPERATIONAL STATUS MESSAGE<br />
The ADS-B Receiving Subsystem receives, decodes <strong>and</strong> processes the “ME” Field of the Rebroadcast<br />
Aircraft Operational Status Messages, <strong>and</strong> updates <strong>and</strong> maintains ADS-R Reports with the decoded data in<br />
accordance with §C.3.5. The <strong>for</strong>mat is identical to the ADS-B Aircraft Operational Status Message specified<br />
in section §C.2.3.10 <strong>and</strong> Figure C-10, except that “ME” bit 56 is redefined to be the ICAO/<strong>Mode</strong> A Flag (IMF)<br />
<strong>and</strong> bit 20 of the Capability Class Code conveys the NIC Supplement-B.<br />
DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris