https://osmocom.org/https://osmocom.org/favicon.ico?16647414092020-10-09T17:00:02ZOpen Source Mobile CommunicationsOsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=198612020-10-09T17:00:02Zlaforge
<ul><li><strong>Related to</strong> <i><a class="issue tracker-2 status-3 priority-1 priority-lowest closed" href="/issues/4795">Feature #4795</a>: Uplink Repeated SACCH Support</i> added</li></ul> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=198632020-10-09T17:10:38Zlaforge
<ul><li><strong>Related to</strong> <i><a class="issue tracker-2 status-3 priority-1 priority-lowest closed" href="/issues/4796">Feature #4796</a>: Downlink Repeated FACCH Support</i> added</li></ul> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=199052020-10-12T17:04:04Zlaforge
<ul></ul> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=199552020-10-16T09:00:40Zlaforge
<ul></ul><p>See also: Chapter 7.2 of "GSM/EDGE Evolution and Performance".</p> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=202932020-11-09T22:55:47Zdexter
<ul><li><strong>Assignee</strong> set to <i>dexter</i></li></ul><p>3GPP TS 44.004 specifies an SRR bit in the SACCH uplink block format. This bit is used to request a repeated SACCH downlink SACCH from the BTS. When the MS is unable to decode the downlink SACCH blocks from the BTS, it should set the SRR bit. My idea for a first experiment was to trigger this by sending malformed SACCH blocks to the MS, so far this did not work, even though the MS has the Repeated ACCH Capability bit in CM3 set.</p>
<p>Note: Some of the work here overlaps with repeated FACCH support (Repeated ACCH Capability bit / signalling).</p> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=203022020-11-11T17:37:12Zdexter
<ul><li><strong>Status</strong> changed from <i>New</i> to <i>In Progress</i></li><li><strong>% Done</strong> changed from <i>0</i> to <i>60</i></li></ul><p>The SACCH repetition can now be requested from the MS. When I understand the spec correctly then only SAPI0 frames may be repeated, all others are not repeated.</p>
<p>See also: <a class="external" href="https://gerrit.osmocom.org/c/osmo-bts/+/21105">https://gerrit.osmocom.org/c/osmo-bts/+/21105</a> l1sap: add repeated downlink SACCH</p> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=203502020-11-16T22:30:17Zdexter
<ul><li><strong>% Done</strong> changed from <i>60</i> to <i>70</i></li></ul><p>See also:<br /><a class="external" href="https://gerrit.osmocom.org/c/osmo-bts/+/21105">https://gerrit.osmocom.org/c/osmo-bts/+/21105</a> l1sap: add repeated downlink SACCH</p> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=203642020-11-19T15:13:31Zdexter
<ul><li><strong>% Done</strong> changed from <i>70</i> to <i>80</i></li></ul><p>The patch is still in review. I think we have most problems addressed now. See also: <a class="external" href="https://gerrit.osmocom.org/c/osmo-bts/+/21105">https://gerrit.osmocom.org/c/osmo-bts/+/21105</a></p> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=203852020-11-24T00:00:33Zdexter
<ul><li><strong>% Done</strong> changed from <i>80</i> to <i>90</i></li></ul><p>The patches are up for review, no open review issues at the moment.</p> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=204762020-11-30T15:05:00Zdexter
<ul></ul><p>I have fixed the currently pending review issues, so no open review issues at the moment.</p> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=206452020-12-22T10:53:29Zdexter
<ul><li><strong>Status</strong> changed from <i>In Progress</i> to <i>Resolved</i></li><li><strong>% Done</strong> changed from <i>90</i> to <i>100</i></li></ul><p>All related patches are merged, so we can resolve this now.</p> OsmoBTS - Feature #4794: Downlink Repeated SACCH supporthttps://osmocom.org/issues/4794?journal_id=285002023-11-15T08:38:23Zfixeria
<ul><li><strong>Related to</strong> <i><a class="issue tracker-1 status-6 priority-1 priority-lowest closed" href="/issues/3056">Bug #3056</a>: OsmoBTS doesn't implement SACCH Repetition Order (SRO)</i> added</li></ul>