[srslte-users] pdsch_ue "timed out waiting for buffer"

[Keith E. Fleming]

Tried running pdsch_ue on Verizon's frequency (751MHz) and the Nuand BladeRF x40 loses its mind. Same setup as before, Dell Latitude E6430 (dual core i5-3320M). Had no luck with srsue yesterday, was hoping to learn more by running this app that decodes the physical downlink but this is getting wearying. Here in the city center, Verizon's signal should be breathing down my neck with RSRP!

┌──(root💀kali)-[~keith/srsRAN/build/lib/examples]└─# ./pdsch_ue -f 751000000 -g 60
Opening RF device with 1 RX antennas...
Opening bladeRF...
Set RX sampling rate 1.92 Mhz, filter BW: 2.50 Mhz
Tunning receiver to 751.000 MHz
set RX frequency to 751000000
Searching for cell...
Set RX sampling rate 1.92 Mhz, filter BW: 2.50 Mhz
 Found Cell_id:   0 FDD, CP: Normal  , DetectRatio= 0% PSR=0.00, Power=-inf dBm
 Found Cell_id:  46 FDD, CP: Normal  , DetectRatio=100% PSR=3.49, Power=54.8 dBm
*Found Cell_id: 371 TDD, CP: Normal  , DetectRatio=50% PSR=2.33, Power=55.3 dBm
Decoding PBCH for cell 371 (N_id_2=2)
Set RX sampling rate 1.92 Mhz, filter BW: 2.50 Mhz
Cell not found after 0 trials. Trying again (Press Ctrl+C to exit)
Searching for cell...
Set RX sampling rate 1.92 Mhz, filter BW: 2.50 Mhz
 Found Cell_id:   0 FDD, CP: Normal  , DetectRatio= 0% PSR=0.00, Power=-inf dBm
*Found Cell_id:  46 FDD, CP: Normal  , DetectRatio=100% PSR=3.70, Power=63.5 dBm
 Found Cell_id:   0 FDD, CP: Normal  , DetectRatio= 0% PSR=0.00, Power=-inf dBm
Decoding PBCH for cell 46 (N_id_2=1)
Set RX sampling rate 1.92 Mhz, filter BW: 2.50 Mhz
Setting sampling rate 11.52 MHz
Set RX sampling rate 11.52 Mhz, filter BW: 10.00 Mhz
Finding PSS... Peak:      1.1, FrameCnt: 0, State:[ERROR @ host/libraries/libbladeRF/src/streaming/sync.c:336] wait_for_buffer: Timed out waiting for buf_ready after 2000 ms
/home/keith/srsRAN/lib/src/phy/rf/rf_blade_imp.c.447: RX failed: Operation timed out; nsamples=11520;
/home/keith/srsRAN/lib/src/phy/ue/ue_sync.c.765: Error receiving samples
/home/keith/srsRAN/lib/examples/pdsch_ue.c.721: Error calling srsran_ue_sync_work()
[ERROR @ host/libraries/libbladeRF/src/backend/usb/libusb.c:1089] Transfer timed out for buffer 0x558c07b8ad50
/home/keith/srsRAN/lib/src/phy/rf/rf_blade_imp.c.447: RX failed: Operation timed out; nsamples=11520;
/home/keith/srsRAN/lib/src/phy/ue/ue_sync.c.765: Error receiving samples
/home/keith/srsRAN/lib/examples/pdsch_ue.c.721: Error calling srsran_ue_sync_work()
SIGINT received. Exiting....1, FrameCnt: 0, State: 0
[ERROR @ host/libraries/libbladeRF/src/streaming/sync.c:336] wait_for_buffer: Timed out waiting for buf_ready after 2000 ms
/home/keith/srsRAN/lib/src/phy/rf/rf_blade_imp.c.447: RX failed: Operation timed out; nsamples=11520;
/home/keith/srsRAN/lib/src/phy/ue/ue_sync.c.765: Error receiving samples
/home/keith/srsRAN/lib/examples/pdsch_ue.c.721: Error calling srsran_ue_sync_work()
[ERROR @ host/libraries/libbladeRF/src/backend/usb/libusb.c:1089] Transfer timed out for buffer 0x558c0780f840
[ERROR @ host/libraries/libbladeRF/src/backend/usb/libusb.c:1089] Transfer timed out for buffer 0x558c0781a850
[ERROR @ host/libraries/libbladeRF/src/backend/usb/libusb.c:1089] Transfer timed out for buffer 0x558c07825860
[ERROR @ host/libraries/libbladeRF/src/backend/usb/libusb.c:1089] Transfer timed out for buffer 0x558c07830870
[ERROR @ host/libraries/libbladeRF/src/backend/usb/libusb.c:1089] Transfer timed out for buffer 0x558c0783b880
[ERROR @ host/libraries/libbladeRF/src/backend/usb/libusb.c:1089] Transfer timed out for buffer 0x558c07846890

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