[srslte-users] Having troubles to connect srsUE with srsENB

Thu Jun 6 08:14:53 UTC 2019

Hey Mohammed,

As a first step, why don't you try to receive your enb signal with a
pdsch_ue  to ensure everything is working properly at a radio level.

To do this cd to your build folder at your ue machine and run the following
"./lib/examples/pdsch_ue -f <freq>"

where <freq> is the downlink frequency of the enb you currently have
running.

Let me know what the output looks like.

Regards,

Justin
____
Justin Tallon Ph.D.

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

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

On Thu, Jun 6, 2019 at 10:02 AM Mohammed Jabi <mohammed.jabi.mj at gmail.com>
wrote:

> Hi everyone,
>
> I am totally new to srsLTE and any help would be appreciated. I am trying
> to connect srsue with srsenb. I have followed all steps described in the
> github page but ue is not able to detect enb.
>
> I am using 2 BladeRFx40; one for ue and the other for enb. I am also
> adopting the configuration provided without any changes. Both machines run
> ubuntu 18.04.2 LTS and their CPUs are:
> UE machine: Dual core Intel Core i7-4500U (-MT-MCP-) cache: 4096 KB
>            clock speeds: max: 3000 MHz 1: 1151 MHz 2: 1101 MHz 3: 1078 MHz
>            4: 1093 MHz
> enB machine: Quad core Intel Core i7-3770 (-MT-MCP-) cache: 8192 KB
>            clock speeds: max: 3900 MHz 1: 1774 MHz 2: 1922 MHz 3: 1797 MHz
>            4: 1769 MHz 5: 1818 MHz 6: 2006 MHz 7: 1929 MHz 8: 1889 MHz
>
> You find attached log files when I run:  "sudo srsue
> --log.all_level=info". When I run"
> sudo srsenb --log.all_level=info", the enb.log is always empty. Below the
> outputs in terminals:
>
> XXXXXXXXXXXXXXX
> sudo srsepc
>
> Built in Release mode using commit 5343b33f on branch master.
>
>
> ---  Software Radio Systems EPC  ---
>
> Reading configuration file /home/remi/.config/srslte/epc.conf...
> HSS Initialized.
> MME S11 Initialized
> MME GTP-C Initialized
> MME Initialized. MCC: 0xf001, MNC: 0xff01
> SPGW GTP-U Initialized.
> SPGW S11 Initialized.
> SP-GW Initialized.
> Received S1 Setup Request.
> S1 Setup Request - eNB Name: srsenb01, eNB id: 0x19b
> S1 Setup Request - MCC:001, MNC:01, PLMN: 61712
> S1 Setup Request - TAC 7, B-PLMN 0
> S1 Setup Request - Paging DRX 2
> Sending S1 Setup Response
> SCTP Association Shutdown. Association: 12
> Deleting eNB context. eNB Id: 0x19b
> Releasing UEs context
> No UEs to be released
> ^CDeleting UE context in HSS. IMSI: 001010123456780
> Deleting UE context in HSS. IMSI: 001010123456789
>
> XXXXXXXXXXXXXXX
> sudo srsenb --log.all_level=info
>
> Built in Release mode using commit 5343b33f on branch master.
>
> ---  Software Radio Systems LTE eNodeB  ---
>
> Reading configuration file /home/remi/.config/srslte/enb.conf...
> Opening bladeRF...
> Set RX sampling rate 1.92 Mhz, filter BW: 2.50 Mhz
> Setting frequency: DL=2685.0 Mhz, UL=2565.0 MHz
> set TX frequency to 2684999936
> set RX frequency to 2564999936
> Setting Sampling frequency 11.52 MHz
> Set RX sampling rate 11.52 Mhz, filter BW: 10.00 Mhz
>
> ==== eNodeB started ===
> Type <t> to view trace
> ^CStopping srsENB... Press Ctrl+C 9 more times to force stop
> Warning could not stop properly PHY
> ---  exiting  ---
>
> XXXXXXXXXXXXXXX
> sudo srsue --log.all_level=info
> Reading configuration file /home/moe/.config/srslte/ue.conf...
>
> Built in Release mode using commit 5343b33f on branch master.
>
> ---  Software Radio Systems LTE UE  ---
>
> Opening 1 RF devices with 1 RF channels...
> Opening bladeRF...
> Set RX sampling rate 1.92 Mhz, filter BW: 2.50 Mhz
> Waiting PHY to initialize...
> ...
> Attaching UE...
> Searching cell in DL EARFCN=3400, f_dl=2685.0 MHz, f_ul=2565.0 MHz
> set RX frequency to 2685000000
> set TX frequency to 2565000000
> Set RX sampling rate 1.92 Mhz, filter BW: 2.50 Mhz
> ............................................^CStopping srsUE... Press
> Ctrl+C 9 more times to force stop
> .---  exiting  ---
>
> please let me if you do need any necessary additional files.  Thank you
>
>
>
>
>
>
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>
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