Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 4347

b) GDLP state transitions when the terms in parenthesis are used and the XDCE or XDLP preceding them are omitted. 5.3.2 Diagnostic and cause codes. The table entries for certain conditions indicate a diagnostic code that shall be included in the packet generated when entering the state indicated. The term, “D = ,” shall define the diagnostic code. When “A = DIAG,” the action taken shall be to generate an ISO 8208 DIAGNOSTIC packet and transfer it to the DTE; the diagnostic code indicated shall define the entry in the diagnostic field of the packet. The cause field shall be set as specified in 5.2.6.3.3. The reset cause field shall be set as specified in ISO 8208. Note 1.— The tables provided below specify state requirements in the following order: 5-3 DCE special cases 5-4 DTE effect on DCE restart states 5-5 DTE effect on DCE call setup and clearing states 5-6 DTE effect on DCE reset states 5-7 DTE effect on DCE interrupt transfer states 5-8 DTE effect on DCE flow control transfer states 5-9 XDCE effect on DCE restart states 5-10 XDCE effect on DCE call setup and clearing states 5-11 XDCE effect on DCE reset states 5-12 XDCE effect on DCE interrupt transfer states 5-15 GDLP (ADLP) effect on ADCE (GDCE) packet layer ready states 5-16 GDLP (ADLP) effect on ADCE (GDCE) call setup and clearing states 5-17 GDLP (ADLP) effect on ADCE (GDCE) reset states 5-18 GDLP (ADLP) effect on ADCE (GDCE) interrupt transfer states 5-19 GDLP (ADLP) effect on ADCE (GDCE) flow control transfer states 5-20 DCE effect on ADCE (GDCE) call setup and clearing states 5-21 DCE effect on ADCE (GDCE) reset states 5-22 DCE effect on ADCE (GDCE) interrupt transfer states Note 2.— All tables specify both ADLP and GDLP actions. Note 3.— Within the Mode S subnetwork, states p6 and d2 are transient states. Note 4.— References to “notes” in the state tables refer to table-specific notes that follow each state table. Note 5.— All diagnostic and cause codes are interpreted as decimal numbers. Note 6.— An SVC between an ADCE and a GDCE may be identified by a temporary and/or permanent channel number, as defined in 5.2.5.1.2. 5.4 MODE S PACKET FORMATS 5.4.1 Formats. The Mode S packet formats shall be as specified in Figures 5-3 to 5-22. 2007/70/II. szám Annex 10 — Aeronautical Telecommunications Volume III 5-32 28/11/02 No. 77 5.4.2 Significance of control fields. The structure of the format control fields used in Mode S packets shall be as specified in Figure 5-23. The significance of all control fields used in these packet formats shall be as follows: Field symbol Definition AG Address, Ground; the 8-bit binary representation of the ground DTE address (5.2.3.1.3.1) AM Address, Mobile; the 4-bit binary representation of the last two BCD digits of the mobile DTE address (5.2.3.1.3.2) CC Clearing cause as defined in ISO 8208 CH Channel number (1 to 15) DC Diagnostic code as defined in ISO 8208 DP Data packet type (Figure 5-23) F S-bit sequence, first packet flag FILL Fill field FILL1 Has a length of 6 bits for a non-multiplexed packet in a downlink SLM frame; otherwise it is 0 bit FILL2 Has a length of 0 bit for a non-multiplexed packet in a downlink SLM frame and for a multiplexing header; otherwise it is 2 bits FS Fast select present IN Initialization bit L “More bit” for long-form MSP packets as specified in 5.2.7.4 LENGTH The length of a multiplexed packet in bytes expressed as an unsigned binary number LV User data field length; number of user bytes as specified in 5.2.2.3.1 M “More bit” for SVC DATA packets as specified in 5.2.5.1.4.1 M/CH MSP channel number MP MSP packet type (Figure 5-23) M/SN Sequence number; the sequence number for the long form MSP packet OD Optional data ODL Optional data length OF Option flag P Priority field PR Packet receive sequence number PS Packet send sequence number RC Resetting cause code as defined in ISO 8208 RT Route table as defined in 5.2.5.3.3.8 RTL Route table length expressed in bytes S “More bit” for CALL REQUEST, CALL ACCEPT, CLEAR REQUEST and INTERRUPT packets as specified in 5.2.5.1.4.2 SN Sequence number; the sequence number for this packet type SP Supervisory packet (Figure 5-23) SS Supervisory subset number (Figure 5-23) ST Supervisory type (Figure 5-23) TC Temporary channel number (1 to 3) UD User data field FIRST PACKET The contents of the first of the multiplexed packets LAST PACKET The contents of the last of the multiplexed packets 2007/70/II. szám Part I Annex 10 — Aeronautical Telecommunications 5-33 28/11/02 No. 77 TABLES FOR CHAPTER 5 Table 5-1. ADLP Mode S subnetwork timers Table 5-2. DCE actions at state transition Timer name Timer label Nominal value Reference Channel retirement Active channel-ADLP Interrogator interrogation Interrogator link Link frame cancellation L-bit delivery-ADLP Packet resequencing and S-bit delivery Tr Tx Ts Tz Tc Tm Tq 600 s 420 s 60 s 30 s 60 s 120 s 60 s 5.2.8.3.1 5.2.8.3.2 5.2.8.1.2 5.2.7.1.1.4.2, 5.2.8.1.3.2 5.2.2.1.1.4.5 5.2.7.4.3 5.2.6.9 DCE state State definition Action that shall be taken when entering the state r1 PACKET LEVEL READY Return all SVCs to the p1 state (see p1 state explanation). r2 DTE RESTART REQUEST Return each SVC to the p1 state (see p1 state explanation). Issue a RESTART CONFIRMATION to the DTE. r3 DCE RESTART REQUEST Issue a RESTART REQUEST to the DTE. Unless entered via the r2 state, send a RESTART REQUEST to the reformatting process. p1 READY Release all resources assigned to SVC. Break the correspondence between the DTE/DCE SVC and the ADCE/GDCE SVC (the ADCE/GDCE SVC may not yet be in the p1 state). p2 DTE CALL REQUEST Determine if sufficient resources exist to support request; if so, allocate resources and forward CALL REQUEST packet to reformatting process; if not, enter DCE CLEAR REQUEST to DTE state (p7). Determination of resources and allocation is as defined in ISO 8208. p3 DCE CALL REQUEST Determine if sufficient resources exist to support request; if so allocate resources and forward CALL REQUEST packet to DTE; if not, send a CLEAR REQUEST packet to the reformatting process. Determination of resources and allocation is as defined in ISO 8208. p4 DATA TRANSFER No action. p5 CALL COLLISION Reassign outgoing call to another SVC (the DTE in its call collision state ignores the incoming call) and enter the DCE CALL REQUEST state (p3) for that new SVC. Enter the p2 state to process the CALL REQUEST from the DTE. p6 DTE CLEAR REQUEST Release all resources assigned to SVC, send a CLEAR CONFIRMATION packet to the DTE and enter p1 state. p7 DCE CLEAR REQUEST to DTE Forward CLEAR REQUEST packet to DTE. d1 FLOW CONTROL READY No action. d2 DTE RESET REQUEST Remove DATA packets transmitted to DTE from window; discard any DATA packets that represent partially transmitted M-bit sequences and discard any INTERRUPT packet awaiting transfer to the DTE; reset all window counters to 0; set any timers and retransmission parameters relating to DATA and INTERRUPT transfer to their initial value. Send RESET CONFIRMATION packet to DTE. Return SVC to d1 state. 2007/70/II. szám Annex 10 — Aeronautical Telecommunications Volume III 5-34 28/11/02 No. 77 Table 5-3. DCE special cases d3 DCE RESET REQUEST to DTE Remove DATA packets transmitted to DTE from window; discard any DATA packets that represent partially transmitted M-bit sequences and discard any INTERRUPT packet awaiting transfer to the DTE; reset all window counters to 0; set any timers and retransmission parameters relating to DATA and INTERRUPT transfer to their initial value. Forward RESET REQUEST packet to DTE. i1 DTE INTERRUPT READY No action. i2 DTE INTERRUPT SENT Forward INTERRUPT packet received from DTE to reformatting process. jl DCE INTERRUPT READY No action. j2 DCE INTERRUPT SENT Forward INTERRUPT packet received from reformatting process to DTE. f1 DCE RECEIVE READY No action. f2 DCE RECEIVE NOT READY No action. g1 DTE RECEIVE READY No action. g2 DTE RECEIVE NOT READY No action. Received from DTE DCE special cases Any state Any packet less than 2 bytes in length (including a valid data link level frame containing no packet) A=DIAG D=38 Any packet with an invalid general format identifier A=DIAG D=40 Any packet with a valid general format identifier and an assigned logical channel identifier (includes a logical channel identifier of 0) See Table 5-4 DCE state State definition Action that shall be taken when entering the state 2007/70/II. szám Part I Annex 10 — Aeronautical Telecommunications 5-35 28/11/02 No. 77 Table 5-4. DTE effect on DCE restart states DCE restart states (see Note 5) Packet received from DTE PACKET LEVEL READY (see Note 1) r1 DTE RESTART REQUEST r2 DCE RESTART REQUEST r3 Packets having a packet type identifier shorter than 1 byte and logical channel identifier not equal to 0 See Table 5-5 A=ERROR S=r3 D=38 (see Note 4) A=DISCARD Any packet, except RESTART, REGISTRATION (if supported) with a logical channel identifier of 0 A=DIAG D=36 A=DIAG D=36 A=DIAG D=36 Packet with a packet type identifier which is undefined or not supported by DCE See Table 5-5 A=ERROR S=r3 D=33 (see Note 4) A=DISCARD RESTART REQUEST, RESTART CONFIRMATION, or REGISTRATION (if supported) packet with a logical channel identifier unequal to 0 See Table 5-5 A=ERROR S=r3 D=41 (see Note 4) A=DISCARD RESTART REQUEST A=NORMAL (forward) S=r2 A=DISCARD A=NORMAL S=p1 or d1 (see Note 2) RESTART CONFIRMATION A=ERROR S=r3 D=17 (see Note 6) A=ERROR S=r3 D=18 (see Note 4) A=NORMAL S=p1 or d1 (see Note 2) RESTART REQUEST OR RESTART CONFIRMATION packet with a format error A=DIAG D=38, 39, 81 or 82 A=DISCARD A=ERROR D=38, 39, 81 or 82 REGISTRATION REQUEST or REGISTRATION CONFIRMATION packets (see Note 3) A=NORMAL A=NORMAL A=NORMAL REGISTRATION REQUEST or REGISTRATION CONFIRMATION packet with a format error (see Note 3) A=DIAG D=38, 39, 81 or 82 A=ERROR S=r3 D=38, 39, 81 or 82 (see Note 4) A=ERROR D=38, 39, 81 or 82 Call setup, call clearing, DATA, interrupt, flow control, or reset packet See Table 5-5 A=ERROR S=r3 D=18 A=DISCARD NOTES:

Source: https://magyarkozlony.hu/hivatalos-lapok/7e70cec03f34e3c2efd8610b865b65591eafd701/dokumentumok/a55dc160549d57fa4db0035e37c6a6a98dd1a0b9/letoltes