[srslte-users] ZeroMQ failure to connect.

Wed May 6 18:21:35 UTC 2020

UE Attach works now. Thanks. Keep up the good work.

On Wed, May 6, 2020 at 11:57 AM Andre Puschmann <
andre.puschmann at softwareradiosystems.com> wrote:

> Hey guys,
>
> apparently we've introduced a late bug where scheduling resources have
> not been allocated properly. This has only affected some conigs, like
> the default one unfortunately.
>
> We've pushed a fix to [1]. Can you please check if that solves the
> attach issue?
>
> Thanks
> Andre
>
>
> [1] https://github.com/srsLTE/srsLTE/tree/sr_config_regression
>
>
> On 6/5/20 17:51, Igor Kim wrote:
> > Hi Kevin,
> >
> > I also encountered issues with RAR on my MacBook Pro in VMWare, so the
> > UE connected only after 3-4 attempts, on the server PC in Hyper-V it
> > runs smoothly.
> >
> > However, I am not sure that the cause of the issues is the same, because
> > looks like you have plenty of computational resources.
> >
> > Attached you find archived content of ~/.config/srslte folder. Apart
> > from configuration files I didn’t change anything.
> >
> > The run commands from the srsLTE build folder with those configs are:
> >
> > sudo ip netns add ue1
> >
> > # in terminal 0
> > sudo ./srsepc/src/srsepc
> >
> > # in terminal 1
> > sudo ./srsenb/src/srsenb
> >
> > # in terminal 2
> > sudo ./srsue/src/srsue
> >
> >
> >
> >
> > ------
> > Igor Kim (M.Eng)
> > Wissenschaftlicher Mitarbeiter
> > Fakultät Digitale Transformation
> > Hochschule für Technik, Wirtschaft und Kultur Leipzig
> >
> > Zschochersche straße 69, 04229 Leipzig
> > +49 341 3062-555 (Tel.)
> > E-mail: igor.kim at htwk-leipzig.de
> > On 6. May 2020, 17:14 +0200, Kevin Heathley <kevin.heathley at gmail.com>,
> > wrote:
> >
> >     Hi Igor, I am unable to get this working in AWS and GCP. Running
> >     Ubuntu 18.04 on 8 vCPU and 32 GB RAM. I must be doing something
> >     wrong. Have not tried VMware yet.
> >
> >
> >     After compiling, did you install default config files in /etc or did
> >     you create your own? I installed through "srslte_install_configs.sh
> >     service".
> >
> >
> >     Looking at the UE side, it seems to end up in an endless loop as
> >     there is no RAR being sent from eNB.
> >
> >
> >     ubuntu at ip-172-31-22-211:~/srsLTE/build$ sudo ./srsue/src/srsue
> >     --rf.device_name=zmq
> >
>  --rf.device_args="tx_port=tcp://*:2001,rx_port=tcp://localhost:2000,id=ue,base_srate=23.04e6"
> >     --gw.netns=ue1 --phy.nof_phy_threads=1
> >
> >     Reading configuration file /etc/srslte/ue.conf...
> >
> >
> >     Built in Release mode using commit e3e384821 on branch master.
> >
> >
> >     Opening 1 channels in RF device=zmq with
> >
>  args=tx_port=tcp://*:2001,rx_port=tcp://localhost:2000,id=ue,base_srate=23.04e6
> >
> >     CHx base_srate=23.04e6
> >
> >     CHx id=ue
> >
> >     Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12
> >     decimation)
> >
> >     CH0 rx_port=tcp://localhost:2000
> >
> >     CH0 tx_port=tcp://*:2001
> >
> >     Waiting PHY to initialize ... done!
> >
> >     Attaching UE...
> >
> >     Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12
> >     decimation)
> >
> >     Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12
> >     decimation)
> >
> >     .
> >
> >     Found Cell: Mode=FDD, PCI=1, PRB=50, Ports=1, CFO=-0.2 KHz
> >
> >     Current sample rate is 11.52 MHz with a base rate of 23.04 MHz (x2
> >     decimation)
> >
> >     Current sample rate is 11.52 MHz with a base rate of 23.04 MHz (x2
> >     decimation)
> >
> >     Found PLMN: Id=00101, TAC=7
> >
> >     Random Access Transmission: seq=36, ra-rnti=0x2
> >
> >     Random Access Complete.  c-rnti=0x46, ta=0
> >
> >     RRC Connected
> >
> >     Scheduling request failed: releasing RRC connection...
> >
> >     Random Access Transmission: seq=6, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=27, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=2, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=26, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=37, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=10, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=24, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=19, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=46, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=26, ra-rnti=0x2
> >
> >     Warning: Detected Radio-Link Failure
> >
> >     RRC IDLE
> >
> >     Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12
> >     decimation)
> >
> >     Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12
> >     decimation)
> >
> >     .
> >
> >     Found Cell: Mode=FDD, PCI=1, PRB=50, Ports=1, CFO=-0.2 KHz
> >
> >     Current sample rate is 11.52 MHz with a base rate of 23.04 MHz (x2
> >     decimation)
> >
> >     Current sample rate is 11.52 MHz with a base rate of 23.04 MHz (x2
> >     decimation)
> >
> >     Found PLMN: Id=00101, TAC=7
> >
> >     Random Access Transmission: seq=1, ra-rnti=0x2
> >
> >     Random Access Complete.  c-rnti=0x51, ta=0
> >
> >     RRC Connected
> >
> >     Scheduling request failed: releasing RRC connection...
> >
> >     Random Access Transmission: seq=34, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=28, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=35, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=29, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=31, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=16, ra-rnti=0x2
> >
> >     Random Access Transmission: seq=3, ra-rnti=0x2
> >
> >     < --------- the above pattern repeats over and over (RRC Connect /
> >     Idle) ---------->
> >
> >
> >     On the eNB it looks like this:
> >
> >
> >     ubuntu at ip-172-31-22-211:~/srsLTE/build$ sudo ./srsenb/src/srsenb
> >     --rf.device_name=zmq
> >
>  --rf.device_args="fail_on_disconnect=true,tx_port=tcp://*:2000,rx_port=tcp://localhost:2001,id=enb,base_srate=23.04e6"
> >     --expert.nof_phy_threads=1
> >
> >     --- Software Radio Systems LTE eNodeB ---
> >
> >
> >     Reading configuration file /etc/srslte/enb.conf...
> >
> >
> >     Built in Release mode using commit e3e384821 on branch master.
> >
> >
> >     Opening 1 channels in RF device=zmq with
> >
>  args=fail_on_disconnect=true,tx_port=tcp://*:2000,rx_port=tcp://localhost:2001,id=enb,base_srate=23.04e6
> >
> >     CHx base_srate=23.04e6
> >
> >     CHx id=enb
> >
> >     Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12
> >     decimation)
> >
> >     CH0 rx_port=tcp://localhost:2001
> >
> >     CH0 tx_port=tcp://*:2000
> >
> >     CH0 fail_on_disconnect=true
> >
> >     Current sample rate is 11.52 MHz with a base rate of 23.04 MHz (x2
> >     decimation)
> >
> >     Current sample rate is 11.52 MHz with a base rate of 23.04 MHz (x2
> >     decimation)
> >
> >     Setting frequency: DL=2685.0 Mhz, UL=2565.0 MHz for cc_idx=0
> >
> >
> >     ==== eNodeB started ===
> >
> >     Type <t> to view trace
> >
> >     RACH: tti=3561, preamble=36, offset=0, temp_crnti=0x46
> >
> >     Disconnecting rnti=0x46.
> >
> >     RACH: tti=6461, preamble=6, offset=0, temp_crnti=0x47
> >
> >     Disconnecting rnti=0x47.
> >
> >     RACH: tti=6551, preamble=27, offset=0, temp_crnti=0x48
> >
> >     Disconnecting rnti=0x48.
> >
> >     RACH: tti=6641, preamble=2, offset=0, temp_crnti=0x49
> >
> >     RACH: tti=6661, preamble=26, offset=0, temp_crnti=0x4a
> >
> >     SCHED: Could not transmit RAR within the window (RA TTI=6641,
> >     Window=10, Now=6672)
> >
> >     Disconnecting rnti=0x49.
> >
> >     Disconnecting rnti=0x4a.
> >
> >     RACH: tti=6751, preamble=37, offset=0, temp_crnti=0x4b
> >
> >     Disconnecting rnti=0x4b.
> >
> >     RACH: tti=6841, preamble=10, offset=0, temp_crnti=0x4c
> >
> >     Disconnecting rnti=0x4c.
> >
> >     RACH: tti=6931, preamble=24, offset=0, temp_crnti=0x4d
> >
> >     Disconnecting rnti=0x4d.
> >
> >     RACH: tti=7021, preamble=19, offset=0, temp_crnti=0x4e
> >
> >     <---------- the above repeats over and over --------->
> >
>
>
> --
> Andre Puschmann
>
> Software Radio Systems (SRS)
> http://www.softwareradiosystems.com
>
> PGP/GnuPG key: 6C42AB31
> fingerprint: 137A AE49 785B A445 257C 8AD7 D877 A498 6C42 AB31
>
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