[srslte-users] Runtime Error: multiple sampling rates
Charbel Lahoud
charbel.lahoud at etit.tu-chemnitz.de
Wed Jun 2 15:23:03 UTC 2021
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 ?
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=False,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.html
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
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