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Vladimir Rolbin vrolbin at gmail.comHi, Ivan Yes, the patch is applied.. It's not so clear the role of the timers mT3101, mT3111 and mT3109 for PDTCH channel. If I see well when "AccessGrantResponder -> LCH = gBTS.getPDTCH();" the same channel is opened every time (it's never closed explicitly): LogicalChannel::open(); -> L1FEC::open() -> mDecoder->open(); -> void L1Decoder::open() -> { ScopedLock lock(mLock); if (!mRunning) start(); mFER=0.0F; mT3111.reset(); mT3109.reset(); mT3101.set(); mActive = true; } handleGoodFrame function is overridden, so the channel stops to be active here after mT3101 is elapsed: void XCCHL1Decoder::writeLowSide(const RxBurst& inBurst) { OBJLOG(DEBUG) <<"XCCHL1Decoder " << inBurst; // If the channel is closed, ignore the burst. if (!active()) { OBJLOG(DEBUG) <<"XCCHL1Decoder not active, ignoring input"; return; } ... } Pls advice.. Regards, Vladimir On Wed, Oct 10, 2012 at 6:13 PM, Ivan Kluchnikov < Ivan.Kluchnikov at fairwaves.ru> wrote: > Hi, Vladimir! > > > Hi, Vladimir! > > I haven't any problems with downlink assignment and > PACKET_UPLINK_ACK_NACK now, but I will check it. > Please, check, have you applied this patch? > > https://github.com/chemeris/openbts-p2.8/commit/bfa47ccfa26ab30b0232584ac67f6b195644329a > > > 2012/10/10 Vladimir Rolbin <vrolbin at gmail.com>: > > Similar problem with DL_PACKET_UPLINK_ACK_NACK..., now logs are > > synchronized: > > > > BTS: > > > > 1349870962.242903 3064806256: [ BTS -> PCU ] PhDataInd: FN 2543233 FN52 > 17 > > DATA raw=(0401018aae8c0f01c0050816083a853907018754033d89) > > 1349870962.261436 3064806256: [ BTS -> PCU ] PhDataInd: FN 2543237 FN52 > 21 > > DATA raw=(000102058aae8c0f1b2b2b2b2b2b2b2b2b2b2b2b2b2b2b) > > 1349870962.262173 3042884464: [ PCU -> BTS ] PCH: L2Length 11 > > primitive=UNIT_DATA raw=(063f300f40027d6ba40000d8aae8c0f81a022b2b2b2b) > > 1349870962.262261 3042884464: [ BTS -> PCU ] PhPchCnf: > > 2d063f300f40027d6ba40000d8aae8c0f81a022b2b2b2b > > 1349870962.263013 3042884464: [ PCU -> BTS ] PACCH FN 2543250 FN52 34 > CNTRL1 > > raw=(4f2400208000000000000000f155d181e02b2b2b2b2b2b) > > DL_PACKET_UPLINK_ACK_NACK > > 1349870962.283385 3064806256: [ BTS -> PCU ] PhDataInd: FN 2543242 FN52 > 26 > > DATA raw=(0401018aae8c0f01c0050816083a853907018754033d89) > > 1349870962.302008 3064806256: [ BTS -> PCU ] PhDataInd: FN 2543246 FN52 > 30 > > DATA raw=(000102058aae8c0f1b2b2b2b2b2b2b2b2b2b2b2b2b2b2b) > > 1349870962.320769 3064806256: [ BTS -> PCU ] PhDataInd: FN 2543250 FN52 > 34 > > DATA raw=(0401018aae8c0f01c0050816083a853907018754033d89) > > 1349870962.362534 3064806256: [ BTS -> PCU ] PhDataInd: FN 2543259 FN52 > 43 > > CNTRL1 raw=(40062aba303f2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b) > > UL_PACKET_CONTROL_ACKNOWLEDGEMENT > > 1349870962.480042 3042884464: [ PCU -> BTS ] PDTCH: FN 2543298 FN52 30 > DATA > > raw=(0f01002541c001081501ff6cba2b2b2b2b2b2b2b2b2b2b) > > > > PCU: > > > > <0005> gprs_rlcmac_data.cpp:880 Decoded premier TLLI=0x8aae8c0f of UL > DATA > > TBF=0. > > <0005> gprs_rlcmac_data.cpp:743 Complete UL frame for TBF=0: len=17 > > <0008> gprs_rlcmac.cpp:1760 LLC [PCU -> SGSN] TFI: 0 TLLI: 0x8aae8c0f > len=17 > > <0008> gprs_bssgp_pcu.cpp:145 LLC [SGSN -> PCU] = TLLI: 0x8aae8c0f IMSI: > 000 > > len: 9 > > <0002> gprs_rlcmac.cpp:354 Allocating DL TBF: TFI=0 TRX=0 MS_CLASS=10 > > <0002> gprs_rlcmac.cpp:948 - Setting Control TS 7 > > <0002> gprs_rlcmac_data.cpp:1804 TX: START TFI: 0 TLLI: 0x8aae8c0f > Immediate > > Assignment Downlink (PCH) > > <0002> gprs_rlcmac_data.cpp:281 PACKET CONTROL ACK with unknown > FN=2543259 > > TLL=0x8aae8c0f (TRX 0 TS 7) > > <0002> gprs_rlcmac.cpp:895 Free UL TBF=0 with TLLI=0x8aae8c0f. > > <0004> gprs_rlcmac_data.cpp:1456 Complete DL frame for TBF=0: len=9 > > <0002> gprs_rlcmac.cpp:895 Free DL TBF=0 with TLLI=0x8aae8c0f. > > <0008> gprs_bssgp_pcu.cpp:145 LLC [SGSN -> PCU] = TLLI: 0x8aae8c0f IMSI: > 000 > > len: 9 > > <0002> gprs_rlcmac.cpp:354 Allocating DL TBF: TFI=0 TRX=0 MS_CLASS=10 > > <0002> gprs_rlcmac.cpp:948 - Setting Control TS 7 > > <0002> gprs_rlcmac_data.cpp:1804 TX: START TFI: 0 TLLI: 0x8aae8c0f > Immediate > > Assignment Downlink (PCH) > > <0004> gprs_rlcmac_data.cpp:1456 Complete DL frame for TBF=0: len=9 > > <0002> gprs_rlcmac.cpp:895 Free DL TBF=0 with TLLI=0x8aae8c0f. > > > > ... > > > > > > > > From: Vladimir Rolbin [mailto:vrolbin at gmail.com] > > Sent: Tuesday, October 09, 2012 5:17 PM > > To: osmocom-pcu at lists.osmocom.org; openbts-discuss at lists.sourceforge.net > > Subject: [Openbts-discuss] gprs PACCH downlink assignment problem > > > > > > > > Hi, > > > > > > > > My set is openbts-p2.8-gprs-exp/osmo-pcu-jolly. I encounter the problem > with > > PACCH downlink assignment: > > > > > > > > If the difference between FNs of DL_PACKET_DOWNLINK_ASSIGNMENT and > > corresponding UL_PACKET_CONTROL_ACKNOWLEDGEMENT > > is expected (RRBP = 0) 13 everything is OK (OpenBTS log): > > > > > > > > 1347379490.099008 3031505776: [ PCU -> BTS ] PACCH FN 2536893 FN52 21 > CNTRL1 > > raw=(4f0800000c03400a0800802b2b2b2b2b2b2b2b2b2b2b2b) > > DL_PACKET_DOWNLINK_ASSIGNMENT > > 1347379490.118500 3063704432: [ BTS -> PCU ] PhDataInd: FN 2536885 FN52 > 13 > > DATA raw=(100101cc741f3203c005650000014500003c00010000ff) > > 1347379490.136108 3063704432: [ BTS -> PCU ] PhDataInd: FN 2536889 FN52 > 17 > > DATA raw=(080105cc741f3228e2a8c8aa0100000100000000000003) > > 1347379490.154624 3063704432: [ BTS -> PCU ] PhDataInd: FN 2536893 FN52 > 21 > > DATA raw=(040107cc741f32777777066b616e6e656c036f72670000) > > 1347379490.215582 3063704432: [ BTS -> PCU ] PhDataInd: FN 2536906 FN52 > 34 > > CNTRL1 > > > raw=(400731d07ccb2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b)UL_PACKET_CONTROL_ACKNOWLEDGEMENT > > > > > > > > > > > > But it's not always the case > > > > > > > > 1349788219.582282 3043367792: [ PCU -> BTS ] PACCH FN 2189728 FN52 8 > CNTRL1 > > raw=(4f0800000c02800a0d00802b2b2b2b2b2b2b2b2b2b2b2b) > > DL_PACKET_DOWNLINK_ASSIGNMENT > > 1349788219.601978 3064179568: [ BTS -> PCU ] PhDataInd: FN 2189720 FN52 0 > > DATA raw=(040103ae3558373751f40103e800101773022a85464200) > > 1349788219.620378 3064179568: [ BTS -> PCU ] PhDataInd: FN 2189724 FN52 4 > > DATA raw=(0001042dae355837026a4e0432100000258ccc2b2b2b2b) > > 1349788219.638881 3064179568: [ BTS -> PCU ] PhDataInd: FN 2189728 FN52 8 > > DATA raw=(040103ae3558373751f40103e800101773022a85464200) > > 1349788219.680973 3064179568: [ BTS -> PCU ] PhDataInd: FN 2189737 FN52 > 17 > > CNTRL1 raw=(4006b8d560df2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b) > > UL_PACKET_CONTROL_ACKNOWLEDGEMENT > > > > > > > > diff FN = 9, that causes the following behaviour in pcu: > > > > > > > > <0002> gprs_rlcmac_data.cpp:1753 TBF: START TFI: 0 TLLI: 0xae355837 > Packet > > Downlink Assignment (PACCH) > > <0004> gprs_rlcmac_data.cpp:1442 Complete DL frame for TBF=0: len=9 > > <0002> gprs_rlcmac_data.cpp:281 PACKET CONTROL ACK with unknown > FN=2163607 > > TLL=0xae355837 (TRX 0 TS 7) > > <0002> gprs_rlcmac_data.cpp:100 Poll timeout for UL TBF=0 > > <0002> gprs_rlcmac_data.cpp:107 - Timeout for polling PACKET CONTROL ACK > for > > PACKET UPLINK ACK > > > > > > > > Any ideas? Is it the known issue? > > > > > > Regards, > > > > Vladimir Rolbin > > > > > > > > -- > Regards, > Ivan Kluchnikov. > http://fairwaves.ru > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/osmocom-net-gprs/attachments/20121011/f2f311d3/attachment.htm>