[srslte-users] eMBMS , enb error

Wed Feb 10 23:07:06 UTC 2021

Hey Jane,

Judging by your config file you are using an older version of srsLTE.

Could you tell me what exact commit are you using, please?

Regards,
Justin
____
Justin Tallon Ph.D.

Software Radio Systems (SRS)
http://www.softwareradiosystems.com

+353-86-067-0753 | justin.tallon at softwareradiosystems.com

On Wed, Feb 10, 2021 at 3:19 PM Jane <janezhang76201 at gmail.com> wrote:

> Hi, Justin
>
> Thank you so much for your help.
>
> I used prb=15 (bandwidth =3M) and dl_earfcn=1934 in my tests on Jetson
> TX2. I do  hope to improve the bandwidth so much because prb=15
> bandwidth=3M  are too limited for the upper application to run with. But I
> cant find a configuration for LimeSDR either on deskPC or on Jetson TX2.  I
> tried many dl_earfcn and prb where attach could not be done or srsue could
> not be online for a long time(disconnected, then can not attach again).
>
> Prb=15, dl_earfcn are recommended in the srslte document (link is as
> follows). Yes, it is stable on deskPC. But it is not stable on Jetson TX2.
>
>
> https://docs.srslte.com/en/latest/app_notes/source/pi4/source/index.html?highlight=limesdr#pi4-enodeb-hardware-requirements
>
>
>
> Do you have any idea about how to get the prb improved? Any help will be
> appreciated!
>
>
>
> The configuration in the srsLTE document is :
>
> sudo nano /root/.config/srslte/enb.conf
>
>
>
> [enb]
>
> mcc = <yourMCC>
>
> mnc = <yourMNC>
>
> mme_addr = <ipaddr>        *## IP for external MME, eg. 192.168.1.10*
>
> gtp_bind_addr = <ipaddr>   *## local interface IP for external S1-U, eg. 192.168.1.3*
>
> s1c_bind_addr = <ipaddr>   *## local interface IP for external S1-MME, eg. 192.168.1.3*
>
> n_prb = 15
>
> tm = 1
>
> nof_ports = 1
>
>
>
> [rf]
>
> dl_earfcn = 1934
>
> tx_gain = 60               *## this power seems to work best*
>
> rx_gain = 40
>
> device_name = soapy
>
> device_args = auto         *## does not work with anything other than 'auto'*
>
>
>
> Jane
>
>
>
> *From: *Justin Tallon <justin.tallon at softwareradiosystems.com>
> *Sent: *Wednesday, February 10, 2021 5:28 AM
> *To: *Jane Zhang <janezhang76201 at gmail.com>
> *Cc: *srslte-users at lists.softwareradiosystems.com
> *Subject: *Re: [srslte-users] eMBMS , enb error
>
>
>
> Hey Jane,
>
>
> There appear to be some issues related to a lower number of prbs with
> embms.
>
>
>
> We will work to resolve this but in the meantime, you should be able to
> use 50 prbs without issues.
>
>
>
> Regards,
>
> Justin
>
>
> ____
> Justin Tallon Ph.D.
>
> Software Radio Systems (SRS)
> http://www.softwareradiosystems.com
>
> +353-86-067-0753 | justin.tallon at softwareradiosystems.com
>
>
>
>
>
> On Mon, Feb 8, 2021 at 2:57 PM Justin Tallon <
> justin.tallon at softwareradiosystems.com> wrote:
>
> Hey Jane,
>
>
> I will look into this and get back to you!
>
>
>
> Regards,
>
> Justin
>
> ____
> Justin Tallon Ph.D.
>
> Software Radio Systems (SRS)
> http://www.softwareradiosystems.com
>
> +353-86-067-0753 | justin.tallon at softwareradiosystems.com
>
>
>
>
>
> On Fri, Feb 5, 2021 at 8:33 PM Jane Zhang <janezhang76201 at gmail.com>
> wrote:
>
> Hi Justin
>
> Attached all the log files and conf files here. Could you help with this?
>
> Thank you so much!
>
>
>
> On Mon, Feb 1, 2021 at 2:52 AM Justin Tallon <
> justin.tallon at softwareradiosystems.com> wrote:
>
> Hey!
>
>
>
>
> Can you please share the logs from the epc, enb and ue as well as the conf
> files used in each.
>
>
>
>
> Thanks,
>
> Justn
>
> ____
> Justin Tallon Ph.D.
>
> Software Radio Systems (SRS)
> http://www.softwareradiosystems.com
>
> +353-86-067-0753 | justin.tallon at softwareradiosystems.com
>
>
>
>
>
> On Sun, Jan 31, 2021 at 5:11 PM janezhang76201 <janezhang76201 at gmail.com>
> wrote:
>
>
>
> Dear srsLTE team
>
> I run srsLTE to implement eMBMS. I use :
>
> 1) srsue on a laptop   with LimeSDR USB as RF end.
>
> 2) srsenb on a Jetson TX2 with LimeSDR USB as RF end
>
> 3) srsepc and srs mbms on a Jetson TX2
>
>
>
> I followed this instruction:
> https://github.com/srsLTE/srsLTE_docs/blob/19.12/srslte_user_manuals/source/app_notes/source/embms/source/index.rst
>
>
>
> srsLTE version: 19_12 ( I use this version because only this version can
> run with LimeSDR and TX2. I dont know why.)
>
>
>
> I got error on the enb side as follows ( I also attach the screen shot).
> ue can not attach successfully. Any help would be appreciated. I was stuck
> here totally. Hope to hear help from you! thank you so much!
>
>
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 4, L: 2, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 4, L: 2, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 4, L: 2, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 0, L: 3, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 4, L: 2, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 0, L: 3, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 0, L: 3, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 0, L: 3, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 0, L: 3, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 4, L: 2, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 4, L: 2, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/phch/pdcch.c.619: Illegal
> DCI message nCCE: 4, L: 2, nof_cce: 7, nof_bits=22
>
> /home/nvidia/srsLTE-release_19_12/lib/src/phy/enb/enb_dl.c.381: Error
> encoding UL DCI message
>
> /home/nvidia/srsLTE-release_19_12/srsenb/src/phy/cc_worker.cc.608: Error
> putting PUSCH 0
>
>
>
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
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>
>
>
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