[srslte-users] Running srsue and srsenb on the same machine

[Hua Yanghao]

After a few tweaks here and there and still with crappy fly wire
antennas I managed to get a stable LTE connection between two PCs
using two LimeSDR-mini with a stable downloading speed at around
500KiB/s.

Really fantastic project and will keep digging :-)

On Fri, May 3, 2019 at 9:38 AM Hua Yanghao <huayanghao at gmail.com> wrote:
>
> On Fri, May 3, 2019 at 9:04 AM Andre Puschmann
> <andre.puschmann at softwareradiosystems.com> wrote:
> >
> > Yanghao,
> >
> > to answer your first question from the previous post, I am afraid there
> > is not a straightforward solution to running both srsEPC and srsUE on
> > the same machine as both are using the default tun interface. You could
> > try network namespaces or run the EPC in a VM perhaps.
>
> Thanks, I will try it in a VM and map the USB device over to VM.
>
> >
> > On 2/5/19 21:32, Hua Yanghao wrote:
> > > Another issue I have seen with Ubuntu 19.04 is that the newer SDR driver
> > > is now recognizing audio devices as SDR and seems srsue only takes the
> > > first found SDR device.
> > > Manually hacking into the device list and picking up the right index
> > > made everything working as expected, still wondering if the device index
> > > can be configured in config files?
> >
> > Can you post the console output of this newer SDR driver please? Perhaps
> > it's Soapy picking up audio devices. Anyway you can specifiy the driver
> > in both the UE and eNB config files or using "--device_name uhd", for
> > example.
>
> Thanks for the info.
> Console output looks like this:
>
>
> ---  Software Radio Systems LTE UE  ---
>
> [INFO] [UHD] linux; GNU C++ version 8.2.0; Boost_106700; UHD_3.13.1.0-3
> [INFO] Using format CF32.
> Receiving async metadata not supported by device. Exiting thread.
> Opening RF device with 1 RX antennas...
> Soapy has found device #0: default_input=False, default_output=False,
> device_id=5, driver=audio, label=hw:ThinkPad OneLink Pro Dock Audio,0,
> Soapy has found device #1: default_input=False, default_output=False,
> device_id=6, driver=audio, label=hw:HDA Intel PCH,0,
> Soapy has found device #2: default_input=False, default_output=False,
> device_id=7, driver=audio, label=default,
> Set Rx bandwidth to 0.00 MHz
> Set Tx bandwidth to 0.00 MHz
> Setting up RX stream
> Available device sensors:
> Available sensors for RX channel 0:
> State of gain elements for Rx channel 0 (AGC supported):
> State of gain elements for Tx channel 0 (AGC supported):
> Rx antenna set to RX
> Tx antenna set to RX
>
> Warning burst preamble is not calibrated for device none. Set a value manually
>
> SYNC:  Receiving from radio while in IDLE_RX
> SYNC:  Receiving from radio while in IDLE_RX
> SYNC:  Receiving from radio while in IDLE_RX
> SYNC:  Receiving from radio while in IDLE_RX
> ...... <many more repeating lines> ......
>
> Cheers.