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Alexander Chemeris alexander.chemeris at gmail.comBurst timing is also passed from osmo-trx to osmo-bts, so should be trivial to pass through. For C/I we need a comment from Thomas. Currently we don't have it on the osmo-trx interface and I'm not even sure we calculate it. Please excuse typos. Written with a touchscreen keyboard. -- Regards, Alexander Chemeris CEO Fairwaves, Inc. https://fairwaves.co On Jul 29, 2016 12:59, "Max" <msuraev at sysmocom.de> wrote: > Hi. > > I'm working on http://projects.osmocom.org/issues/1616 and wonder about > $subj. > > In case of sysmobts, osmo-pcu obtain this data directly from DSP: > * RSSI (dBm) > * burst timing (in quarter of bits) > * link quality (in dB) > * BER > > The first and last value seems to be easy from what I see in > src/osmo-bts-trx/scheduler_trx.c What about burst timing (necessary to > compute TA in the absence of PTCCH) and link quality (measure of C / I > where C is carrier and I is interference power) - how can I compute > those or some estimator to those values? > > -- > Max Suraev <msuraev at sysmocom.de> http://www.sysmocom.de/ > ======================================================================= > * sysmocom - systems for mobile communications GmbH > * Alt-Moabit 93 > * 10559 Berlin, Germany > * Sitz / Registered office: Berlin, HRB 134158 B > * Geschaeftsfuehrer / Managing Director: Harald Welte > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/openbsc/attachments/20160729/78abb436/attachment.htm>