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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 />

A-108 <strong>Technical</strong> <strong>Provisions</strong> <strong>for</strong> <strong>Mode</strong> S <strong>Services</strong> <strong>and</strong> <strong>Extended</strong> <strong>Squitter</strong><br />

Table A-3-3 Response to ground-to-air service request<br />

<strong>Mode</strong> S frame containing downlink MSP packet on channel 6<br />

MSP 6 USER DATA FIELD<br />

Bits 1 to 40 Bits 41 to 96<br />

MSB LINKED COMM B SUB FIELD (LBS) 41 MSB<br />

LSB (2 BITS) 42<br />

DP = 0 (1 BIT) MSB 43<br />

MP = 0 (1 BIT) 44<br />

MSB 45<br />

46<br />

M/CH = 6 (6 BITS) 47<br />

48<br />

MSP 49<br />

LSB HEADER 50<br />

MSB 51<br />

52<br />

FILL 1 = 0 (6 BITS) 53<br />

54<br />

55<br />

LSB LSB 56<br />

1 MSB 57<br />

2 58<br />

3 59 REGISTER<br />

4 60 MESSAGE<br />

5 61 CONTENT<br />

6 62<br />

7 63<br />

8 RESPONSE 64<br />

9 TYPE 65<br />

10 66<br />

11 67<br />

12 68<br />

13 69<br />

14 70<br />

15 71<br />

16 LSB 72<br />

17 73<br />

18 74<br />

19 75<br />

20 76<br />

21 77<br />

22 78<br />

23 79<br />

24 80<br />

25 81<br />

26 82<br />

27 83<br />

28 84<br />

29 USER 85<br />

30 DEFINED 86<br />

31 87<br />

32 88<br />

33 89<br />

34 90<br />

35 91<br />

36 92<br />

37 93<br />

38 94<br />

39 95<br />

40 96 LSB<br />

This packet shall always<br />

be sent as a linked Comm-B. The<br />

second segment being a direct<br />

copy of the relevant register.<br />

Draft<br />

DRAFT - Working Paper ASP TSGWP11-01 <strong>for</strong> review by the TSG during the meeting in June 2011 in Paris

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