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octet) SU.
Code Function
0 Unassigned
1-1 1 1 to 11 octets of user data SU
12- 14 Unassigned
15 Signalling inforn~ationS U
68. TDMAMSG
(1 bit)
This field shall indicate whether the log-on confirm SU has an
associated T channel control message.
Code Function
0 No associated T channel control message
1 Associated T channel control message exists
69. TX channel number
(2 bits)
Code Function
0 Channel Iio. 0
1 Channel No. 1
2 Channel No. 2
3 Channel No. 3
70. Universal time
(7 octets)
The time infonnation shall be synchronized to the UTC time
standard.
Format:
Century:
Year:
Month:
Day:
Hour:
Minute:
Second:
Each of the following is a single octet field
coded in the binary coded decimal (BCD)
lormat. The code ITH can be used in any field
to represent a NULL entry.
Century AD (Anno Domini), CC (2 digit): 00
to 99
Year within the cenhlry, W (2 digit): 00 to 99
Month within the year, MM (2 digit): 01 to 12
Day within the month, DD (2 digit): 01 to 31
Hour within the day, hh (2 digit): 00 to 24
Minute within the hour, mm (2 digit): 00 to 59
Second in the minute, ss (2 digit): 00 to 59
71. Voice channel characteristics
(6 bits)
Voice rate Voice rate Chamel FEC
Code to AES from AES bit rate rate
Unassigned
Reserved
9 600 LPC' 9 600 LPC' 21 000 1/2
4 800 AM BE^ 4 800 AM BE^ 8 400 213
9 600 LPC' 9 6 0 0 ~ ~21'00 0 1/2
and
4 800 AMBE" 800 AMBE' 8 400 2/3
Reserved
Unassigned
Reserved
Unassigned
1. LPC corresponds to the multi-pulse excited linear
predictive coding algorithm as defined in Section 4.8.
2. AMBE corresponds to the advanced multi-band excitation
algorithm as identified in Section 4.8.
Annex 10 - Aeronautical Telecommunications
THIS PAGE INTENTIONALLY LEFT BLANK
Volume ZZI
Part I Annex 10 - Aeronautical Telecommunications
MIESSAGF, TYPE LIST (see paragraph 33)
Mcssagc format figure
Code (refcr to Appendix 2
(HEX) Function to Chapter 4)
BROADCAST
00 Reserved
01 Fill-in signal unit A2-42
02 AES system table broadcast (GES P, and R,,n, channels PARTIAL) A2-3 1
03 AES system table broadcast (beam identification PARTIAL) A2-33
04 AES system table broadcast (GES beam support PARTIAL) A2-34lA2-61
05 AES system table broadcast (GES P,,, and R, channels
COMPLETE)
06 AES system table broadcast (beam identification COMPLETE) A2-33
07 AES system table broadcast (GES beam support COMPLETE) A2-34lA2-61
08 System broadcast - selective release A2-36
09 System broadcast - universal time
OA AES system table broadcast (index)
OB AES system table broadcast (satellite identification PARTIAL) A2-32
OC AES system table broadcast (satellite identification COMPLETE) A2-32
OD AES system table broadcast (2nd series of GES P, and R, A2-3 1
channels COMPLETE)
OE Reserved
SYSTEM LOG-ON/LOG-OFF
10 Log-on request
11 Log-on confirm
12 Log control (R channel)-log-off request
12 Log control (P channel)-log-off request
13 Log control (P channel)-log-on reject
13 Log control (R channel)-reassignment reject
14 Log control (P channel)-log-on interrogation
15 Log-onllog-off acknowledge (P channel)
15 Log-on/log-off acknowledge (R channel)
16 Log control (P channel)-log-on prompt
17 Log control (P channel)-data channel reassignment
17 Log control (R channel)-ready for reassignment
18 Reserved
Q number
(precedence)
19 Reserved
Annex 10 - Aeronautical Telecommunications Volume 111
Message format figure
Code (refer to Appendix 2 Q number
(HEX) Function to Chapter 4) (precedence)
CALL INITIATION
20 General access request telephone (non-safety)
20 General access request telephone (other safety)
20 General access request telephone (flight safety)
20 General access request telephone (distress)
20 Call announcement (non-safety)
20 Call announcement (other safety)
20 Call announcement (flight safety)
20 Call announcement (distress)
21 Call information service address (ISU)
22 Access request data (R/T channel) (non-safety)
22 Access request data (RIT channel) (flight safety and other safety)
22 Access request data (WT channel) (distress)
23 Abbreviated access request telephone (other safety)
23 Abbreviated access request telephone (flight safety)
23 Abbreviated access request telephone (distress)
24 Reserved
25 Reserved
26 Reserved
27 Reserved
28 Data EIRP table broadcast - complete sequence
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