https://projects.osmocom.org/https://projects.osmocom.org/favicon.ico?16647414092016-11-09T12:20:06ZOpen Source Mobile CommunicationsOsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=24192016-11-09T12:20:06Zarvind.sirsikar
<ul></ul><p>We have modified osmo-pcu.cfg as below</p>
<p>cs link-quality-ranges cs1 6 cs2 5 8 cs3 7 13 cs4 12</p>
<p>TO</p>
<p>cs link-quality-ranges cs1 0 cs2 0 8 cs3 0 13 cs4 0</p>
<p>and validated in integration setup. further investigation needs to be done on how measurement parameter is conveyed between TRX and PCU apart from the usual DATA-IND message</p> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=24202016-11-09T12:20:24Zarvind.sirsikar
<ul><li><strong>Status</strong> changed from <i>New</i> to <i>Stalled</i></li></ul> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=50012017-08-15T17:40:24Zlaforge
<ul></ul> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=50462017-08-17T06:41:24Zlaforge
<ul><li><strong>Status</strong> changed from <i>Stalled</i> to <i>New</i></li><li><strong>Assignee</strong> set to <i>4368</i></li></ul> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=118802018-10-02T15:46:12Zlaforge
<ul></ul> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=122502018-10-17T09:42:47Zlaforge
<ul><li><strong>Assignee</strong> changed from <i>4368</i> to <i>msuraev</i></li></ul> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=139452019-04-15T07:46:13Zlaforge
<ul><li><strong>Assignee</strong> changed from <i>msuraev</i> to <i>lynxis</i></li></ul> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=160932019-09-26T15:15:54Zpespin
<ul></ul><p>IIUC this issue was expected until recently when we started providing and fixing (osmo-pcu.git e13cdc503e2faf06699aedd4e84c69ad42916755) measurement values from osmo-trx through osmo-bts-trx into osmo-pcu. <a class="user active" href="https://projects.osmocom.org/users/67">fixeria</a> what do you think?</p> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=161052019-09-27T03:45:13Zfixeria
<ul><li><strong>Status</strong> changed from <i>New</i> to <i>Feedback</i></li></ul><blockquote>
<p>IIUC this issue was expected until recently when we started providing and fixing<br />measurement values from osmo-trx through osmo-bts-trx into osmo-pcu.<br />fixeria what do you think?</p>
</blockquote>
<p>ACK. This should not happen anymore, but we need a TTCN-3 test case to be sure.<br /><a class="user active" href="https://projects.osmocom.org/users/2756">arvind.sirsikar</a>, could you please test with the current master and update the issue? Thanks!</p> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=161062019-09-27T03:48:45Zfixeria
<ul><li><strong>Related to</strong> <i><a class="issue tracker-1 status-3 priority-3 priority-high3 closed" href="/issues/3395">Bug #3395</a>: Uplink CS/MCS control is broken osmo-pcu is used with osmo-bts-trx/osmo-trx</i> added</li></ul> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=161092019-09-27T04:10:45Zfixeria
<ul></ul><p>BTW, Fairwaves noticed that OsmoTRX computes significantly lower C/I values for EDGE bursts (e.g. 1 dB for 8-PSK vs 8 dB for GMSK). There was a patch somewhere, I'll send it to Gerrit as soon as I find it.</p> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=170532020-01-08T22:33:29Zlaforge
<ul><li><strong>Assignee</strong> deleted (<del><i>lynxis</i></del>)</li></ul> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=172932020-01-22T13:59:41Zpespin
<ul><li><strong>Related to</strong> <i><a class="issue tracker-1 status-3 priority-2 priority-default closed" href="/issues/4373">Bug #4373</a>: OsmoTRX calculates relatively lower C/I values for EDGE/8-PSK bursts (compared to GMSK)</i> added</li></ul> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=172952020-01-22T14:01:34Zpespin
<ul><li><strong>Assignee</strong> set to <i>arvind.sirsikar</i></li></ul><p>We have some TTCN3 tests passing already for that, as explained in <a class="issue tracker-1 status-3 priority-3 priority-high3 closed" title="Bug: Uplink CS/MCS control is broken osmo-pcu is used with osmo-bts-trx/osmo-trx (Resolved)" href="https://projects.osmocom.org/issues/3395">#3395</a>.<br />Improvements regarding C/I in osmo-trx are still WIP in <a class="issue tracker-1 status-3 priority-2 priority-default closed" title="Bug: OsmoTRX calculates relatively lower C/I values for EDGE/8-PSK bursts (compared to GMSK) (Resolved)" href="https://projects.osmocom.org/issues/4373">#4373</a>.</p>
<p><a class="user active" href="https://projects.osmocom.org/users/2756">arvind.sirsikar</a> please can you test again with current master osmo-trx + osmo-bts-trx + osmo-pcu and see if you still see any issues?</p> OsmoPCU - Bug #1833: UPLINK MCS gets reduced from MCS9->MCS6 when good radio condition existshttps://projects.osmocom.org/issues/1833?journal_id=238152022-03-24T19:07:08Zfixeria
<ul><li><strong>Status</strong> changed from <i>Feedback</i> to <i>Resolved</i></li></ul><p>All related tickets are closed, the problem of low C/I for 8-PSK bursts has been fixed.<br />No feedback during the past 2 years, marking as resolved.</p>