http://webprisme.cfmu.eurocontrol.int/WikiLink/index.php?title=CPDLC_Air_Initiated_Continuity&feed=atom&action=historyCPDLC Air Initiated Continuity - Revision history2024-03-28T23:20:17ZRevision history for this page on the wikiMediaWiki 1.35.6http://webprisme.cfmu.eurocontrol.int/WikiLink/index.php?title=CPDLC_Air_Initiated_Continuity&diff=2356&oldid=prevDisaac at 06:45, 19 April 20172017-04-19T06:45:24Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 06:45, 19 April 2017</td>
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<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The CPDLC Air Initiated Continuity is a part of the [[Performance Statistics|performance statistics]] gathered for air initiated transactions. It is the probability that an air initiated CPDLC transaction completes before the expiration timer expires (270 seconds). <del class="diffchange diffchange-inline">Note </del>downlink messages which are responded to automatically (e.g. Current Data Authority exchanges) are not considered in the calculation of continuity; they complete almost immediately and so would skew the results and do not really reflect the continuity of the service as perceived by the pilot.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The CPDLC Air Initiated Continuity is a part of the [[Performance Statistics|performance statistics]] gathered for air initiated transactions. It is the probability that an air initiated CPDLC transaction completes before the expiration timer expires (270 seconds). <ins class="diffchange diffchange-inline">It does not include AI transactions that dont complete due to some technical error - these are reported separately. Also note </ins>downlink messages which are responded to automatically (e.g. Current Data Authority exchanges) are not considered in the calculation of continuity; they complete almost immediately and so would skew the results and do not really reflect the continuity of the service as perceived by the pilot.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>All air initiated requests and associated closing responses are analysed. For transactions that do not complete within the permitted delay (270s) an expired event is counted. </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>All air initiated requests and associated closing responses are analysed. For transactions that do not complete within the permitted delay (270s) an expired event is counted. </div></td></tr>
</table>Disaachttp://webprisme.cfmu.eurocontrol.int/WikiLink/index.php?title=CPDLC_Air_Initiated_Continuity&diff=744&oldid=prevDisaac at 13:40, 5 February 20132013-02-05T13:40:04Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:40, 5 February 2013</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* DOWNLINK DELAYED IN NETWORK AND REJECTED RESEND OR CONTACT BY VOICE</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* DOWNLINK DELAYED IN NETWORK AND REJECTED RESEND OR CONTACT BY VOICE</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">* DOWNLINK MESSAGE REJECTED DIALOGUE OPEN</del></div></td><td colspan="2"> </td></tr>
</table>Disaachttp://webprisme.cfmu.eurocontrol.int/WikiLink/index.php?title=CPDLC_Air_Initiated_Continuity&diff=743&oldid=prevDisaac at 13:20, 5 February 20132013-02-05T13:20:54Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:20, 5 February 2013</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The error messages that are considered as expired events are as follows: </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The error messages that are considered as expired events are as follows: </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* <del class="diffchange diffchange-inline">UPLINK </del>DELAYED IN NETWORK AND REJECTED</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* <ins class="diffchange diffchange-inline">ATC TIMEOUT - REPEAT REQUEST</ins></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* <del class="diffchange diffchange-inline">RESPONSE TIMER EXPIRED</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">* DOWNLINK DELAYED - USE VOICE</ins></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">* AIR SYSTEM TIMEOUT</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">* TOO MANY CPDLC REQUESTS - USE VOICE</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">* DOWNLINK </ins>DELAYED IN NETWORK AND REJECTED <ins class="diffchange diffchange-inline"> RESEND OR CONTACT BY VOICE</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* <ins class="diffchange diffchange-inline">DOWNLINK MESSAGE REJECTED DIALOGUE OPEN</ins></div></td></tr>
</table>Disaachttp://webprisme.cfmu.eurocontrol.int/WikiLink/index.php?title=CPDLC_Air_Initiated_Continuity&diff=741&oldid=prevDisaac: Created page with "The CPDLC Air Initiated Continuity is a part of the performance statistics gathered for air initiated transactions. It is the probability that an ai..."2013-02-05T13:15:20Z<p>Created page with "The CPDLC Air Initiated Continuity is a part of the <a href="/WikiLink/index.php/Performance_Statistics" class="mw-redirect" title="Performance Statistics">performance statistics</a> gathered for air initiated transactions. It is the probability that an ai..."</p>
<p><b>New page</b></p><div>The CPDLC Air Initiated Continuity is a part of the [[Performance Statistics|performance statistics]] gathered for air initiated transactions. It is the probability that an air initiated CPDLC transaction completes before the expiration timer expires (270 seconds). Note downlink messages which are responded to automatically (e.g. Current Data Authority exchanges) are not considered in the calculation of continuity; they complete almost immediately and so would skew the results and do not really reflect the continuity of the service as perceived by the pilot.<br />
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All air initiated requests and associated closing responses are analysed. For transactions that do not complete within the permitted delay (270s) an expired event is counted. <br />
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{|style=" background:#cedff2; font-size:120%; font-weight:bold; border:3px solid #a3b0bf; text-align:left; color:#000; " <br />
|CPDLC Air Initiated Transactions Continuity = 1 – (number of air initiated CPDLC expired events / total number of air initiated CPDLC requests made)<br />
|}<br />
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Expired events can occur for one of two reasons: i) the transactions are completed by a uplinked error message indicating that the transaction could not be completed due to some temporary problem with the system (see below for the list of such error messages), or ii) because no closing response is received within 270 seconds (the expiration timer). <br />
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Note transactions that do not complete as the result of Provider Abort are not considered as expired events, since in the definition of Continuity the communication system has to be available when the transaction is initiated and in the case of a PA the communication system is not available.<br />
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The error messages that are considered as expired events are as follows: <br />
* UPLINK DELAYED IN NETWORK AND REJECTED<br />
* RESPONSE TIMER EXPIRED<br />
* AIR SYSTEM TIMEOUT</div>Disaac