Hi people,
I'm doing some tests with an old USRP2 + RF900 daughterboard, and I get a very unstable system (with osmo-trx, osmo-bts-trx and osmo-nitb) - some phones can connect, some dont. I'd like to identify the problem - is it a bad GBit ethernet or the lack of a GPSDO connected to the 10MHz port?
Here is osmo-trx startup: +++ Info: SSE3 support compiled in and supported by CPU Info: SSE4.1 support compiled in and supported by CPU Config Settings Log Level............... DEBUG Device args............. TRX Base Port........... 5700 TRX Address............. 127.0.0.1 GSM Core Address.........127.0.0.1 Channels................ 1 Tx Samples-per-Symbol... 4 Rx Samples-per-Symbol... 1 EDGE support............ Disabled Reference............... Internal C0 Filler Table......... Disabled Multi-Carrier........... Disabled Tuning offset........... 0 RSSI to dBm offset...... 0 Swap channels........... 0
INFO 140529100949376 09:57:53.4 UHDDevice.cpp:623:open: Using discovered UHD device type=usrp2,addr=192.168.10.2,name=,serial=024N11043 -- Opening a USRP2/N-Series device... -- Current recv frame size: 1472 bytes -- Current send frame size: 1472 bytes INFO 140529100949376 09:57:54.6 UHDDevice.cpp:441:set_rates: Rates configured for N2XX 4/1 Tx/Rx SPS INFO 140529100949376 09:57:54.7 UHDDevice.cpp:401:init_gains: Supported Tx gain range [0; 0] INFO 140529100949376 09:57:54.7 UHDDevice.cpp:406:init_gains: Supported Rx gain range [0; 70] INFO 140529100949376 09:57:54.7 UHDDevice.cpp:410:init_gains: Default setting Tx gain for channel 0 to 0 INFO 140529100949376 09:57:54.7 UHDDevice.cpp:417:init_gains: Default setting Rx gain for channel 0 to 35 INFO 140529100949376 09:57:54.7 UHDDevice.cpp:712:open: Single USRP: Device: USRP2 / N-Series Device Mboard 0: USRP2 r4 RX Channel: 0 RX DSP: 0 RX Dboard: A RX Subdev: RFX900 RX TX Channel: 0 TX DSP: 0 TX Dboard: A TX Subdev: RFX900 TX -- Transceiver active with 1 channel(s) +++
From osmo-trx I get millions of messages: +++ DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.1 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 7:1142324 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 0:1142349 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 0:1142325 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 1:1142349 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 2:1142349 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 3:1142349 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 4:1142349 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 5:1142349 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 6:1142349 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 7:1142349 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 2:1142325 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 4:1142325 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 6:1142325 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 7:1142325 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 0:1142350 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 0:1142326 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 1:1142350 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 2:1142350 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 3:1142350 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 4:1142350 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 5:1142350 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 6:1142350 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 7:1142350 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 2:1142326 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 4:1142326 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 6:1142326 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 7:1142326 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 0:1142351 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 0:1142327 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 1:1142351 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 2:1142351 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 3:1142351 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 4:1142351 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 5:1142351 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 6:1142351 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 7:1142351 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 3:1142327 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 4:1142327 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 6:1142327 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 7:1142327 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 0:1142352 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 1:1142352 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 0:1142328 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 2:1142352 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 3:1142352 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 4:1142352 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 5:1142352 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 6:1142352 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 7:1142352 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 3:1142328 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 4:1142328 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 6:1142328 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 7:1142328 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 0:1142353 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 1:1142353 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 0:1142329 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 2:1142353 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 3:1142353 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 4:1142353 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 5:1142353 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 6:1142353 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 7:1142353 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 3:1142329 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 4:1142329 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 6:1142329 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 7:1142329 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 0:1142354 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 1:1142354 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 2:1142354 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 3:1142354 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 0:1142330 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 4:1142354 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 5:1142354 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 6:1142354 DEBUG 140529099826944 10:02:27.4 Transceiver.cpp:852:driveTxPriorityQueue: rcvd. burst at: 7:1142354 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 3:1142330 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 4:1142330 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:946:readSamples: Received timestamp = 32693.2 DEBUG 140529101072128 10:02:27.4 Transceiver.cpp:960:driveTxFIFO: radio clock 6:1142330 DEBUG 140529101039360 10:02:27.4 UHDDevice.cpp:902:readSamples: Requested timestamp = 32693.2 +++
and from osmo-bts-trx: +++ (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127677/850/05/16/45 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127677/850/05/16/45 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127683/850/11/22/03 (bts=0,trx=0,ts=0) SDCCH/4(0): PH-RTS.ind: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:418 1127683/850/11/22/03 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:480 1127714/850/16/02/34 (bts=0,trx=0,ts=0) BCCH: PH-RTS.ind: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:418 1127714/850/16/02/34 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:480 1127718/850/20/06/38 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127718/850/20/06/38 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127724/850/00/12/44 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127724/850/00/12/44 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127728/850/04/16/48 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127728/850/04/16/48 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127734/850/10/22/02 (bts=0,trx=0,ts=0) SDCCH/4(0): PH-RTS.ind: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:418 1127734/850/10/22/02 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:480 1127754/850/04/42/22 (bts=0,trx=0,ts=0) SACCH/4(0): PH-RTS.ind: chan_nr=0x20 link_id=0x40 <0007> scheduler.c:418 1127754/850/04/42/22 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x20 link_id=0x40 <0007> scheduler.c:480 1127765/850/15/02/33 (bts=0,trx=0,ts=0) BCCH: PH-RTS.ind: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:418 1127765/850/15/02/33 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:480 1127769/850/19/06/37 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127769/850/19/06/37 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0006> scheduler_trx.c:1619 TRX Clock Ind: elapsed_us= 997110, elapsed_fn=217, error_us=-4345 <0006> scheduler_trx.c:1637 GSM clock jitter: 3322 us (elapsed_fn=1) <0007> scheduler.c:480 1127775/850/25/12/43 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127775/850/25/12/43 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0006> scheduler_trx.c:1660 We were 1 FN slower than TRX, compensated <0007> scheduler.c:480 1127779/850/03/16/47 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127779/850/03/16/47 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127785/850/09/22/01 (bts=0,trx=0,ts=0) SDCCH/4(0): PH-RTS.ind: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:418 1127785/850/09/22/01 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:480 1127816/850/14/02/32 (bts=0,trx=0,ts=0) BCCH: PH-RTS.ind: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:418 1127816/850/14/02/32 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:480 1127820/850/18/06/36 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127820/850/18/06/36 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127826/850/24/12/42 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127826/850/24/12/42 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127830/850/02/16/46 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127830/850/02/16/46 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127836/850/08/22/00 (bts=0,trx=0,ts=0) SDCCH/4(0): PH-RTS.ind: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:418 1127836/850/08/22/00 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:480 1127856/850/02/42/20 (bts=0,trx=0,ts=0) SACCH/4(0): PH-RTS.ind: chan_nr=0x20 link_id=0x40 <0007> scheduler.c:418 1127856/850/02/42/20 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x20 link_id=0x40 <0007> scheduler.c:480 1127867/850/13/02/31 (bts=0,trx=0,ts=0) BCCH: PH-RTS.ind: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:418 1127867/850/13/02/31 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:480 1127871/850/17/06/35 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127871/850/17/06/35 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127877/850/23/12/41 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127877/850/23/12/41 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127881/850/01/16/45 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127881/850/01/16/45 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127887/850/07/22/51 (bts=0,trx=0,ts=0) SDCCH/4(0): PH-RTS.ind: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:418 1127887/850/07/22/51 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:480 1127918/850/12/02/30 (bts=0,trx=0,ts=0) BCCH: PH-RTS.ind: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:418 1127918/850/12/02/30 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:480 1127922/850/16/06/34 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127922/850/16/06/34 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127928/850/22/12/40 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127928/850/22/12/40 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127932/850/00/16/44 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127932/850/00/16/44 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127938/850/06/22/02 (bts=0,trx=0,ts=0) SDCCH/4(0): PH-RTS.ind: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:418 1127938/850/06/22/02 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:480 1127958/850/00/42/22 (bts=0,trx=0,ts=0) SACCH/4(0): PH-RTS.ind: chan_nr=0x20 link_id=0x40 <0007> scheduler.c:418 1127958/850/00/42/22 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x20 link_id=0x40 <0007> scheduler.c:480 1127969/850/11/02/33 (bts=0,trx=0,ts=0) BCCH: PH-RTS.ind: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:418 1127969/850/11/02/33 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:480 1127973/850/15/06/37 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127973/850/15/06/37 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127979/850/21/12/43 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127979/850/21/12/43 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127983/850/25/16/47 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1127983/850/25/16/47 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:480 1127989/850/05/22/01 (bts=0,trx=0,ts=0) SDCCH/4(0): PH-RTS.ind: chan_nr=0x20 link_id=0x00 <0007> scheduler.c:418 1127989/850/05/22/01 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x20 link_id=0x00 <0006> scheduler_trx.c:1619 TRX Clock Ind: elapsed_us= 998173, elapsed_fn=216, error_us=+1333 <0006> scheduler_trx.c:1637 GSM clock jitter: -2537 us (elapsed_fn=0) <0000> rsl.c:2458 (bts=0,trx=0,ts=0,ss=0) Rx RSL DEACTIVATE_SACCH <0006> l1sap.c:1394 deactivating sacch chan_nr=0x20 trx=0 <0006> scheduler.c:1383 Deactivating SACCH/4(0) on trx=0 ts=0 <0000> rsl.c:2458 (bts=0,trx=0,ts=0,ss=0) Rx RSL RF_CHAN_REL <0006> l1sap.c:1378 deactivating channel chan_nr=0x20 trx=0 <0006> scheduler.c:1383 Deactivating SDCCH/4(0) on trx=0 ts=0 <0006> l1sap.c:602 deactivate confirm chan_nr=0x20 trx=0 <0000> rsl.c:580 (bts=0,trx=0,ts=0,ss=0) Tx RF CHAN REL ACK <0007> scheduler.c:480 1128020/850/10/02/32 (bts=0,trx=0,ts=0) BCCH: PH-RTS.ind: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:418 1128020/850/10/02/32 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0x80 link_id=0x00 <0007> scheduler.c:480 1128024/850/14/06/36 (bts=0,trx=0,ts=0) CCCH: PH-RTS.ind: chan_nr=0x90 link_id=0x00 <0007> scheduler.c:418 1128024/850/14/06/36 (bts=0,trx=0,ts=0) : PH-DATA.req: chan_nr=0 +++
From NITB: +++ Mon Jan 15 10:04:11 2018 <0005> abis_nm.c:507 BTS0 feature 'EGPRS' reported via OML does not match statically set feature: 0 != 1. Please fix. Mon Jan 15 10:04:11 2018 <0005> abis_nm.c:507 BTS0 feature 'OML Alerts' reported via OML does not match statically set feature: 1 != 0. Please fix. Mon Jan 15 10:04:11 2018 <0005> abis_nm.c:573 BTS0: ARI reported sw[0/2]: sysmobts is 0.7.0.20180114 Mon Jan 15 10:04:11 2018 <0005> abis_nm.c:446 BTS0 reported variant: omso-bts-trx Mon Jan 15 10:04:11 2018 <0005> abis_nm.c:468 BTS0 Attribute Manufacturer Dependent State is unreported Mon Jan 15 10:04:11 2018 <0005> abis_nm.c:573 BTS0: ARI reported sw[0/1]: TRX_PHY_VERSION is Unknown +++
And after some time, osmo-trx stops reading samples from UHD and osmo-bts-trx shuts down.
Thanks, Rafael Diniz
Hi!
On Mon, Jan 15, 2018 at 10:07:50AM -0200, Rafael Diniz wrote:
I'm doing some tests with an old USRP2 + RF900 daughterboard, and I get a very unstable system (with osmo-trx, osmo-bts-trx and osmo-nitb) - some phones can connect, some dont. I'd like to identify the problem - is it a bad GBit ethernet or the lack of a GPSDO connected to the 10MHz port?
According to [1] the clock accuracy of the USRP2 is 20ppm. GSM 05.10[2] states that accuracy has to be 0.05ppm or better. That's quite a bit off, so I don't think it's surprising that you don't see much stability. I believe it makes a difference whether the MSs see other BTSs or not. If the MSs see only the unstable BTS it is more likely to work out. Not sure what is the case here.
And after some time, osmo-trx stops reading samples from UHD and osmo-bts-trx shuts down.
Not sure if that is a possible effect of an unstable clock. I could imagine so, but again, I am not sure.
I guess the obvious advice is to attach a more stable clock and try again.
Kind regards, -Alex
[1] http://openbts.org/w/index.php?title=Ettus_Research_USRP [2] http://www.etsi.org/deliver/etsi_gts/05/0510/05.00.00_60/gsmts_0510v050000p....
Thanks Alex. Do you know if this GPSDO would work: https://www.ebay.com/itm/GPS-Receiver-GPSDO-10MHz-1PPS-GPS-Disciplined-Clock...
Feature:
POWER:DC12V 1.5A GPS ANT POWER:DC3.3V 1PPS OUTPUT:Square WAVE,3.3Vpp 10M OUTPUT :SINE WAVE,1Vrms (13dBm+-2dB) RS232 OUTPUT:GPS NMEA SIGNAL SIZE:W*H*D=107*55*120mm ACCESSORY:AC110-220-DC12V ADAPTER,GPS ANT.
Thanks! Rafael Diniz
On 01/15/2018 11:46 AM, Alexander Huemer wrote:
Hi!
On Mon, Jan 15, 2018 at 10:07:50AM -0200, Rafael Diniz wrote:
I'm doing some tests with an old USRP2 + RF900 daughterboard, and I get a very unstable system (with osmo-trx, osmo-bts-trx and osmo-nitb) - some phones can connect, some dont. I'd like to identify the problem - is it a bad GBit ethernet or the lack of a GPSDO connected to the 10MHz port?
According to [1] the clock accuracy of the USRP2 is 20ppm. GSM 05.10[2] states that accuracy has to be 0.05ppm or better. That's quite a bit off, so I don't think it's surprising that you don't see much stability. I believe it makes a difference whether the MSs see other BTSs or not. If the MSs see only the unstable BTS it is more likely to work out. Not sure what is the case here.
And after some time, osmo-trx stops reading samples from UHD and osmo-bts-trx shuts down.
Not sure if that is a possible effect of an unstable clock. I could imagine so, but again, I am not sure.
I guess the obvious advice is to attach a more stable clock and try again.
Kind regards, -Alex
[1] http://openbts.org/w/index.php?title=Ettus_Research_USRP [2] http://www.etsi.org/deliver/etsi_gts/05/0510/05.00.00_60/gsmts_0510v050000p....
Hi!
On Mon, Jan 15, 2018 at 01:14:07PM -0200, Rafael Diniz wrote:
Do you know if this GPSDO would work: https://www.ebay.com/itm/GPS-Receiver-GPSDO-10MHz-1PPS-GPS-Disciplined-Clock...
Feature:
POWER:DC12V 1.5A GPS ANT POWER:DC3.3V 1PPS OUTPUT:Square WAVE,3.3Vpp 10M OUTPUT :SINE WAVE,1Vrms (13dBm+-2dB) RS232 OUTPUT:GPS NMEA SIGNAL SIZE:W*H*D=107*55*120mm ACCESSORY:AC110-220-DC12V ADAPTER,GPS ANT.
Well, I don't have experience with this particular device. Observations: * Power level of 10MHz output is right, according to [1]. * Waveform is the desired square. * There is no specification of accuracy. Assumption is that it's good enough, but I think it's worth noting that there is no statement. * The 1PPS output is a nice to have, though voltage is too low to be inside spec of the USRP2. I don't know how likely it is to be working anyways.
Have you considered using an OCXO for simplicity reasons? There are reasonably priced boards on eBay that have an OCXO and just the necessary components around to run it, like [2,3]. Those should be sufficient regarding accuracy, though output waveform is sine, which is acceptable but not ideal. I have just invested 2 minutes in research. I am sure even better suitable options can be found easily.
Kind regards, -Alex
[1] https://files.ettus.com/manual/page_usrp2.html [2] https://www.ebay.com/itm/182994166409 [3] https://www.ebay.com/itm/252755180989
Thanks Alex! I ended up buying this one: https://www.ebay.com/itm/182974939864
Lets see. ; )
On 01/15/2018 06:07 PM, Alexander Huemer wrote:
Hi!
On Mon, Jan 15, 2018 at 01:14:07PM -0200, Rafael Diniz wrote:
Do you know if this GPSDO would work: https://www.ebay.com/itm/GPS-Receiver-GPSDO-10MHz-1PPS-GPS-Disciplined-Clock...
Feature:
POWER:DC12V 1.5A GPS ANT POWER:DC3.3V 1PPS OUTPUT:Square WAVE,3.3Vpp 10M OUTPUT :SINE WAVE,1Vrms (13dBm+-2dB) RS232 OUTPUT:GPS NMEA SIGNAL SIZE:W*H*D=107*55*120mm ACCESSORY:AC110-220-DC12V ADAPTER,GPS ANT.
Well, I don't have experience with this particular device. Observations:
- Power level of 10MHz output is right, according to [1].
- Waveform is the desired square.
- There is no specification of accuracy. Assumption is that it's good enough, but I think it's worth noting that there is no statement.
- The 1PPS output is a nice to have, though voltage is too low to be inside spec of the USRP2. I don't know how likely it is to be working anyways.
Have you considered using an OCXO for simplicity reasons? There are reasonably priced boards on eBay that have an OCXO and just the necessary components around to run it, like [2,3]. Those should be sufficient regarding accuracy, though output waveform is sine, which is acceptable but not ideal. I have just invested 2 minutes in research. I am sure even better suitable options can be found easily.
Kind regards, -Alex
[1] https://files.ettus.com/manual/page_usrp2.html [2] https://www.ebay.com/itm/182994166409 [3] https://www.ebay.com/itm/252755180989
-
Alexander Huemer -
Rafael Diniz