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Sipos Csaba sipos.csaba at kvk.uni-obuda.huHi Jacob, Thanks for the info, will try that. What algorithm (PCU) would you prefer if the goal is to maximize the single UE throughput? Regards, Csaba ----- Eredeti üzenet ----- Feladó: "Jacob Erlbeck" <jerlbeck at sysmocom.de> Címzett: "Sipos Csaba" <sipos.csaba at kvk.uni-obuda.hu> Másolatot kap: "OpenBSC Mailing List" <openbsc at lists.osmocom.org> Elküldött üzenetek: Csütörtök, 2015. Augusztus 13. 12:20:01 Tárgy: Re: Using GPRS Hi On 26.07.2015 20:02, Sipos Csaba wrote: > I will try to give you as many feedback as possible. :-) > > I finally have a more or less working setup. At least there is no crash whatsoever, and the PS domain is working, the UE can attach, activate PDP, transfer data to some extent. > > For example when i tried to ping the TUN interface, I got 2500-2600ms latency. That's normal in the default case, since the MS will have to issue a RACH to get an uplink TBF for the response. You can allow to keep the PACCH open for a longer time by configuring pcu dl-tbf-idle-time 2000 This keeps the DL TBF open for the time given (in ms) by periodically sending LLC dummy commands. HTH Jacob -- - Jacob Erlbeck <jerlbeck 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 Directors: Holger Freyther, Harald Welte