[srslte-users] Runtime Error: multiple sampling rates
Charbel Lahoud
charbel.lahoud at etit.tu-chemnitz.de
Thu Jun 10 12:49:01 UTC 2021
Hi,
Thank you for your reply. I am already using LTE sample rates. With SISO everything is working very smoothly.
But with MIMO only 15 rbs with 3.84 MHz as sampling rate and srate is working, other options are leading to the same error attached.
As well, I have tried to change the UHD version and the master clock rate of the USRP N321 (tried 200 and 245.76 MHz), but still having same issue.
Any help regarding this matter? Thank you.
Best regards
Charbel
-----Original Message-----
From: Andre Puschmann <andre.puschmann at softwareradiosystems.com> On Behalf Of Andre Puschmann
Sent: Thursday, June 3, 2021 12:26 PM
To: Charbel Lahoud <charbel.lahoud at etit.tu-chemnitz.de>; Andre Puschmann <andre at srs.io>; srslte-users at lists.softwareradiosystems.com
Subject: Re: [srslte-users] Runtime Error: multiple sampling rates
Hey,
we don't have a N321 and never tested with one. But I suggest to use
30,72 as srate because this gives you full coverage from 6 to 100 PRB.
Also enable the expert options (see srsue -h) to use LTE sample rates.
The shorter ones won't work with the default N321 master clock rate.
Cheers
Andre
On 3/6/21 12:04, Charbel Lahoud wrote:
> Hi,
> I am still getting the following error. The UE is only working with 2.5MHz BW and srate = 3.84.
> I am using USRP N321 with Master clock rate = 245.76 MHz. Any idea why?
> Thank you.
>
> Best regards
> Charbel
>
>
> -----Original Message-----
> From: Andre Puschmann <andre.puschmann at softwareradiosystems.com> On
> Behalf Of Andre Puschmann
> Sent: Wednesday, June 2, 2021 5:42 PM
> To: Charbel Lahoud <charbel.lahoud at etit.tu-chemnitz.de>;
> srslte-users at lists.softwareradiosystems.com
> Cc: Brendan McAuliffe <brendan.mcauliffe at softwareradiosystems.com>
> Subject: Re: [srslte-users] Runtime Error: multiple sampling rates
>
> Hey,
>
> On 2/6/21 17:23, Charbel Lahoud wrote:
>> Hi,
>> Thank you for your help. I have specified the srate on both USRPs for the eNB and UE. The eNB side is fixed, no error is shown anymore.
>> On the UE side, I am still having different sampling rate even when it is specified. Any suggestions ?
>
> yes, on the UE it's actually the "srate" param in the RF section. See [1] for reference.
>
> The information is a bit spread across various documents it seems. We'll update the sections accordingly. Thanks for raising the issue.
>
>
> Cheers
> Andre
>
>
>
> [1]
> https://docs.srsran.com/en/latest/app_notes/source/5g_nsa/source/index
> .html#srsue
>
>>
>> Best regards
>> Charbel
>>
>>
>> Built in Release mode using commit 45486b6e2 on branch HEAD.
>>
>> Opening 2 channels in RF device=default with args=default [INFO]
>> [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
>> UHD_3.15.0.0-62-g7a3f1516 [INFO] [LOGGING] Fastpath logging disabled at runtime.
>> bOpening USRP channels=2, args: type=n3xx,master_clock_rate=245.76e6
>> bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb[INFO] [MPMD] Initializing
>> 1
>> device(s) in parallel with args:
>> mgmt_addr=192.168.10.2,type=n3xx,product=n320,serial=31D3A4A,claimed=
>> F
>> alse,addr=192.168.10.2,master_clock_rate=245.76e6
>> [INFO] [MPM.PeriphManager] init() called with device args `master_clock_rate=245.76e6,product=n320,clock_source=internal,mgmt_addr=192.168.10.2,time_source=internal'.
>> [INFO] [MPM.Rhodium-0] init() called with args `master_clock_rate=245.76e6,product=n320,clock_source=internal,mgmt_addr=192.168.10.2,time_source=internal'
>> [INFO] [MPM.Rhodium-1] init() called with args `master_clock_rate=245.76e6,product=n320,clock_source=internal,mgmt_addr=192.168.10.2,time_source=internal'
>> [INFO] [0/Replay_0] Initializing block control (NOC ID:
>> 0x4E91A00000000004) [INFO] [0/Radio_0] Initializing block control
>> (NOC
>> ID: 0x12AD100000000320) [INFO] [0/Radio_1] Initializing block control
>> (NOC ID: 0x12AD100000000320) [INFO] [0/DDC_0] Initializing block
>> control (NOC ID: 0xDDC0000000000001) [INFO] [0/DDC_1] Initializing
>> block control (NOC ID: 0xDDC0000000000001) [INFO] [0/DUC_0]
>> Initializing block control (NOC ID: 0xD0C0000000000000) [INFO]
>> [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000000)
>> [INFO] [0/FIFO_0] Initializing block control (NOC ID: 0xF1F0000000000000) [INFO] [0/FIFO_1] Initializing block control (NOC ID: 0xF1F0000000000000)
>> [INFO] [MULTI_USRP] 1) catch time transition at pps edge
>> [INFO] [MULTI_USRP] 2) set times next pps (synchronously)
>> Waiting PHY to initialize ... done!
>> Attaching UE...
>> /home/ubuntu18/srsRAN/lib/src/phy/rf/rf_uhd_imp.cc.929: USRP reported the following error: RuntimeError: Multiple sampling rates upstream of RX Terminator 0: RuntimeError: Node 0/DDC_0 specifies 1.536e+07, node 0/DDC_1 specifies 1.92e+06.
>>
>> /home/ubuntu18/srsRAN/lib/src/phy/rf/rf_uhd_imp.cc.983: USRP reported the following error: RuntimeError: Multiple sampling rates upstream of RX Terminator 0: RuntimeError: Node 0/DDC_0 specifies 1.536e+07, node 0/DDC_1 specifies 1.92e+06.
>>
>> .
>> Found Cell: Mode=FDD, PCI=1, PRB=50, Ports=2, CFO=0.1 KHz .
>> Found Cell: Mode=FDD, PCI=1, PRB=50, Ports=2, CFO=0.0 KHz .
>> Found Cell: Mode=FDD, PCI=1, PRB=50, Ports=2, CFO=0.1 KHz .
>> Found Cell: Mode=FDD, PCI=1, PRB=50, Ports=2, CFO=0.1 KHz
>>
>> -----Original Message-----
>> From: Andre Puschmann <andre.puschmann at softwareradiosystems.com> On
>> Behalf Of Andre Puschmann
>> Sent: Wednesday, June 2, 2021 3:39 PM
>> To: Charbel Lahoud <charbel.lahoud at etit.tu-chemnitz.de>;
>> srslte-users at lists.softwareradiosystems.com
>> Subject: Re: [srslte-users] Runtime Error: multiple sampling rates
>>
>> Hey,
>>
>> for the N3xx as well as for the X3xx you need to specify the sample rate for dual channel configs (MIMO, carrier aggregation, etc). See [1] for reference.
>>
>> Just add your desired rate, i.e. "sampling_rate=15.36e6" to the device args.
>>
>>
>> Cheers
>> Andre
>>
>>
>> [1]
>> https://docs.srsran.com/en/latest/app_notes/source/2ca/source/index.h
>> t
>> ml
>>
>> On 2/6/21 13:13, Charbel Lahoud wrote:
>>> Hi,
>>>
>>>
>>>
>>> Any suggestions why transmission modes 2-4 aren't working with my
>>> setup and how to fix this USRP Error?
>>>
>>> Radio used: USRP N321
>>>
>>> Connection: cables with 30 dB attenuator on each
>>>
>>>
>>>
>>> Best regards
>>>
>>> Charbel
>>>
>>>
>>>
>>> Reading configuration file /home/ubuntu18-sdr/.config/srslte/enb.conf...
>>>
>>> Built in Release mode using commit 45486b6e2 on branch HEAD.
>>>
>>> /home/ubuntu18-sdr/srsRAN/srsenb/src/enb_cfg_parser.cc.890: Force DL
>>> EARFCN for cell PCI=1 to 3350
>>>
>>>
>>>
>>> Opening 2 channels in RF device=default with args=default
>>>
>>> [INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
>>> UHD_3.15.0.0-62-g7a3f1516
>>>
>>> [INFO] [LOGGING] Fastpath logging disabled at runtime.
>>>
>>> Opening USRP channels=2, args: type=n3xx,master_clock_rate=245.76e6
>>>
>>> [INFO] [MPMD] Initializing 1 device(s) in parallel with args:
>>> mgmt_addr=192.168.10.2,type=n3xx,product=n320,serial=31EABBA,claimed
>>> =
>>> F
>>> alse,addr=192.168.10.2,master_clock_rate=245.76e6
>>>
>>> [INFO] [MPM.PeriphManager] init() called with device args
>>> `mgmt_addr=192.168.10.2,product=n320,time_source=internal,master_clock_rate=245.76e6,clock_source=internal'.
>>>
>>> [INFO] [MPM.Rhodium-0] init() called with args
>>> `mgmt_addr=192.168.10.2,product=n320,time_source=internal,master_clock_rate=245.76e6,clock_source=internal'
>>>
>>> [INFO] [MPM.Rhodium-1] init() called with args
>>> `mgmt_addr=192.168.10.2,product=n320,time_source=internal,master_clock_rate=245.76e6,clock_source=internal'
>>>
>>> [INFO] [0/Replay_0] Initializing block control (NOC ID:
>>> 0x4E91A00000000004)
>>>
>>> [INFO] [0/Radio_0] Initializing block control (NOC ID:
>>> 0x12AD100000000320)
>>>
>>> [INFO] [0/Radio_1] Initializing block control (NOC ID:
>>> 0x12AD100000000320)
>>>
>>> [INFO] [0/DDC_0] Initializing block control (NOC ID:
>>> 0xDDC0000000000001)
>>>
>>> [INFO] [0/DDC_1] Initializing block control (NOC ID:
>>> 0xDDC0000000000001)
>>>
>>> [INFO] [0/DUC_0] Initializing block control (NOC ID:
>>> 0xD0C0000000000000)
>>>
>>> [INFO] [0/DUC_1] Initializing block control (NOC ID:
>>> 0xD0C0000000000000)
>>>
>>> [INFO] [0/FIFO_0] Initializing block control (NOC ID:
>>> 0xF1F0000000000000)
>>>
>>> [INFO] [0/FIFO_1] Initializing block control (NOC ID:
>>> 0xF1F0000000000000)
>>>
>>> [INFO] [MULTI_USRP] 1) catch time transition at pps edge
>>>
>>> [INFO] [MULTI_USRP] 2) set times next pps (synchronously)
>>>
>>> /home/ubuntu18-sdr/srsRAN/lib/src/phy/rf/rf_uhd_imp.cc.928: USRP
>>> reported the following error: RuntimeError: Multiple sampling rates
>>> upstream of RX Terminator 0: RuntimeError: Node 0/DDC_0 specifies
>>> 1.536e+07, node 0/DDC_1 specifies 1.92e+06.
>>>
>>>
>>>
>>> ==== eNodeB started ===
>>>
>>> Type <t> to view trace
>>>
>>> /home/ubuntu18-sdr/srsRAN/lib/src/phy/rf/rf_uhd_imp.cc.982: USRP
>>> reported the following error: RuntimeError: Multiple sampling rates
>>> upstream of RX Terminator 0: RuntimeError: Node 0/DDC_0 specifies
>>> 1.536e+07, node 0/DDC_1 specifies 1.92e+06.
>>>
>>>
>>>
>>> Setting frequency: DL=2680.0 Mhz, UL=2560.0 MHz for cc_idx=0
>>>
>>>
>>> _______________________________________________
>>> srslte-users mailing list
>>> srslte-users at lists.softwareradiosystems.com
>>> https://lists.softwareradiosystems.com/mailman/listinfo/srslte-users
>>>
>>
>>
>> --
>> Andre Puschmann
>>
>> Software Radio Systems (SRS)
>> https://www.srs.io
>> andre at srs.io
>>
>> PGP/GnuPG key: 7F4858D408EA231B
>> fingerprint: 62C4 EE1C 69CE 9086 FB75 168A 7F48 58D4 08EA 231B
>>
>
>
> --
> Andre Puschmann
>
> Software Radio Systems (SRS)
> https://www.srs.io
> andre at srs.io
>
> PGP/GnuPG key: 7F4858D408EA231B
> fingerprint: 62C4 EE1C 69CE 9086 FB75 168A 7F48 58D4 08EA 231B
>
--
Andre Puschmann
Software Radio Systems (SRS)
https://www.srs.io
andre at srs.io
PGP/GnuPG key: 7F4858D408EA231B
fingerprint: 62C4 EE1C 69CE 9086 FB75 168A 7F48 58D4 08EA 231B
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ue-MIMO.log
Type: application/octet-stream
Size: 1879300 bytes
Desc: ue-MIMO.log
URL: <https://lists.srsran.com/pipermail/srsran-users/attachments/20210610/0860d57a/attachment.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: error_sync.jpg
Type: image/jpeg
Size: 269845 bytes
Desc: error_sync.jpg
URL: <https://lists.srsran.com/pipermail/srsran-users/attachments/20210610/0860d57a/attachment.jpg>
More information about the srsran-users
mailing list