[srslte-users] Error timed out while receiving samples from uhd

Aaron Montilla aaronmontilla86 at gmail.com
Wed Oct 30 11:37:35 UTC 2019


Hi,
I am trying to build an LTE network using srsenb and connect it to a
commercial UE.

When I run srsenb the connection with the external EPC is perfect. But when
i try to connect the commercial UE then the errors appear. Even with the
same configuration files I get a difference performance every time, but
they have the same problem, it always ends with this error.
These are the logs of the process:

Built in Release mode using commit 27e92851 on branch master.

---  Software Radio Systems LTE eNodeB  ---

Reading configuration file enb.conf...
Opening 1 RF devices with 1 RF channels...
[INFO] [UHD] linux; GNU C++ version 7.4.0; Boost_106501;
UHD_3.15.0.0-96-g0408f47b
[INFO] [LOGGING] Fastpath logging disabled at runtime.
Opening USRP with args: type=x300,master_clock_rate=184.32e6
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [X300] Radio 1x clock: 184.32 MHz
[INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 0.929a
[INFO] [0/DmaFIFO_0] Initializing block control (NOC ID: 0xF1F0D00000000000)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1309 MB/s)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1319 MB/s)
[INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000000001)
[INFO] [0/Radio_1] Initializing block control (NOC ID: 0x12AD100000000001)
[INFO] [0/DDC_0] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [0/DDC_1] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [0/DUC_0] Initializing block control (NOC ID: 0xD0C0000000000000)
[INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000000)
Setting frequency: DL=1805.0 Mhz, UL=1710.0 MHz
Setting Sampling frequency 11.52 MHz
Setting manual TX/RX offset to 18 samples

==== eNodeB started ===
Type <t> to view trace
RACH:  tti=5301, preamble=43, offset=1, temp_crnti=0x46
RACH:  tti=5321, preamble=34, offset=1, temp_crnti=0x47
Disconnecting rnti=0x46.
Disconnecting rnti=0x47.
/home/aaron/srsLTE/lib/src/phy/rf/rf_uhd_imp.c.888: Error timed out while
receiving samples from UHD.

/home/aaron/srsLTE/lib/src/phy/rf/rf_uhd_imp.c.888: Error timed out while
receiving samples from UHD.

/home/aaron/srsLTE/lib/src/phy/rf/rf_uhd_imp.c.888: Error timed out while
receiving samples from UHD.

/home/aaron/srsLTE/lib/src/phy/rf/rf_uhd_imp.c.888: Error timed out while
receiving samples from UHD.

Please, any help will be appreciated. I am in a hurry.

Thank you in advance.
Best regards,
Aaron
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