[srslte-users] srsUE with OpenLTE

ZHANGXINKE xinke.zhang at hotmail.com
Sun Jan 10 03:24:41 UTC 2016


Hi Ismael,

Have you tested the srsUE with any commercial eNodeBs? If so, would you pls give a list of tested commercial eNodeBs?

I have tested the srsUE with JL-620 FDD (http://www.juniglobal.com/product/jl-620fdd-jlt-621tdd/), but it failed.

Thanks,
Xinke

From: ismael.gomez at softwareradiosystems.com
Date: Sat, 9 Jan 2016 19:49:33 +0000
To: pavel.schukin at gmail.com
CC: srslte-users at lists.softwareradiosystems.com
Subject: Re: [srslte-users] srsUE with OpenLTE

Great to hear that it worked. The delay is introduced by transport and is completely out of our control. We plan to compensate for this automatically in the future. 
On Sat, 9 Jan 2016 at 14:33 Павел Щукин <pavel.schukin at gmail.com> wrote:
I set zeroCorrelationZoneConfig=11 and rebuild OpenLTE (this parameter is hardcoded) . After it RA was successful, thank you!
Please describe what "delay introduced by the USRP" you are about? Is it delay introduced by buffering in transport (FPGA, USB Controller, UHD driver) or/and processing (srsUE, OpenLTE) chains?
2016-01-08 22:22 GMT+03:00 Ismael Gomez <ismael.gomez at softwareradiosystems.com>:
Can you try to set a higher value? 11 for instance

On Fri, 8 Jan 2016, 20:11 Павел Щукин <pavel.schukin at gmail.com> wrote:
Hi, IsmaelThank you for your answer!
zeroCorrelationZoneConfig value is set to "1" in OpenLTE SIB2.
Here are attachment files:for srsUE:- "ue_earfcn_3100.conf" - config file- "ue.log" - text log- "ue.pcap" - log for Wireshark for OpenLTE- "LTE_fdd_enodb.pcap" - log for Wireshark- "001_01_Band7_3100" - config fileI've noticed that enodeb detect preamble id but with TA value in MAC LTE RAR(in pcap log of enodeb) is 6, corresponding approx 940m distance between enodeb and UE (in my experiment actual distance was 0.5m)... May be this is the problem.. My B210s has internal clock references. no GPSDO kits, no external 10MHz ref clocks.
P.S.Do you test srsUE with OpenLTE? May be some mutual "magic" configuration exists for its work together? 
P.P.SI preformed all examples with srsLTE except for example with video brodcasting... This command "avconv -f video4linux2 -i /dev/video0 -c:v mp4 -f mpegts tcp://127.0.0.1:2000" says it knows nothing about mp4... But codecs was installed.. I'm new in Linux, may be you have some instruction for dummies?
Thanks
2016-01-08 19:41 GMT+03:00 Ismael Gomez <ismael.gomez at softwareradiosystems.com>:
Hi Pavel, sorry for the late answer. 
What is the zeroCorrelationZoneConfig value in SIB2 in the eNodeB? You should use a large value otherwise the cell is too small and the delay introduced by the USRP (which is not compensated yet) makes the eNodeB to detect an incorrect preamble ID. 
To verify this is the problem, can you enable MAC debug in the UE configuration and send the ENB log as well? 
thanks 
On Fri, 1 Jan 2016 at 22:32 Павел Щукин <pavel.schukin at gmail.com> wrote:
Hello,I use srsUE running on i7 notebook with USRP B210 (two antennas) as UE and OpenLTE running on i7 notebook with USRP B210 as eNB (two antennas).
OpenLTE configuration is:band = 3
bandwidth =5
dl_earfcn =1375
mcc =001
mnc =01
tx_gain =86
rx_gain =30
debug_level =rrcdebug_type=warning info debugenable_pcap=1other config - default 
srsLTE configuration is:dl_freq = 1822500000ul_freq = 1727500000...[pcap]enable_pcap = 1...other config is as in example file "ue.conf.example"
1. First, i try to connect UE with operator's sim to eNB and get such log in terminal at 30001 port of eNB01/02/2016 00:10:52.210251 info rrc LTE_fdd_enb_rrc.cc 237 Received PDU for RNTI=61 and RB=SRB0 5A4133AD984601/02/2016 00:10:52.210363 info rrc LTE_fdd_enb_rrc.cc 537 Received RRC Connection Request for RNTI=61, RB=SRB001/02/2016 00:10:52.210448 info rrc LTE_fdd_enb_rrc.cc 898 Sending RRC Connection Setup for RNTI=61, RB=SRB0 60121B2409801/02/2016 00:10:52.261561 info rrc LTE_fdd_enb_rrc.cc 237 Received PDU for RNTI=61 and RB=SRB1 2000400E82E410520A412CA02AE20C0BC1C0000010000A040BA023A32022069E3141E201/02/2016 00:10:52.261876 info rrc LTE_fdd_enb_rrc.cc 602 Received RRC Connection Setup Complete for RNTI=61, RB=SRB101/02/2016 00:10:52.262733 info rrc LTE_fdd_enb_rrc.cc 288 Received NAS message for RNTI=61 and RB=SRB1 07440201/02/2016 00:10:52.262894 info rrc LTE_fdd_enb_rrc.cc 689 Sending DL Info Transfer for RNTI=61, RB=SRB1 0800183A201001/02/2016 00:10:52.263064 info rrc LTE_fdd_enb_rrc.cc 317 Received MME command Release for RNTI=61 and RB=SRB101/02/2016 00:10:52.263107 info rrc LTE_fdd_enb_rrc.cc 845 Sending RRC Connection Release for RNTI=61, RB=SRB1 2802So I supposed eNb is OK!
2. Then i start UE: sudo ./ue ue.conf andSearching for cell...Found CELL ID: 0 CP: Normal  , CFO: 1.1 KHz.Trying to decode MIB... - Cell ID:         0 - Nof ports:       1 - CP:              Normal   - PRB:             25 - PHICH Length:    Normal - PHICH Resources: 1 - SFN:             0MIB received BW=5 MHzSetting Sampling frequency 5.76 MHzSIB1 received, CellID=1,  PLMN Id: MCC 1 MNC 1SIB2 receivedRandom Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2Random Access Transmission: seq=0, ra-rnti=2Random Access Transmission: seq=1, ra-rnti=2Random Access Transmission: seq=2, ra-rnti=2and that all,..I open ue.pcap file in wireshark with mac-lte-framed dissector but there are only strange RRCConnectionReestablishment messages, and there are NO RRC messages in terminal at 30001 port of eNBI attached ue.pcap and ue.log.Can you help me with this problem?Thank you.-- 
BR,Pavel

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-- 
С уважением,
Павел Щукин




-- 
С уважением,
Павел Щукин




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