lte: update UHD device args for MIMO usage
the USRP B210 device args were not ideal for MIMO configs for
both Amarisoft and srsLTE.
Change-Id: I3785bb96eb7c10a6b10b3d1a86fa71d1f787a7a3
diff --git a/src/osmo_gsm_tester/obj/enb_srs.py b/src/osmo_gsm_tester/obj/enb_srs.py
index ec2d1fc..ad92af5 100644
--- a/src/osmo_gsm_tester/obj/enb_srs.py
+++ b/src/osmo_gsm_tester/obj/enb_srs.py
@@ -207,12 +207,23 @@
rf_dev_args = values['enb'].get('rf_dev_args', '')
rf_dev_args += ',' if rf_dev_args != '' and not rf_dev_args.endswith(',') else ''
- if self._num_prb < 25:
- rf_dev_args += 'send_frame_size=512,recv_frame_size=512'
- elif self._num_prb == 25:
- rf_dev_args += 'send_frame_size=1024,recv_frame_size=1024'
- elif self._num_prb > 25:
+ if self._num_prb == 75:
+ rf_dev_args += 'master_clock_rate=15.36e6,'
+
+ if self._txmode <= 2:
+ # SISO config
+ if self._num_prb < 25:
+ rf_dev_args += 'send_frame_size=512,recv_frame_size=512'
+ elif self._num_prb == 25:
+ rf_dev_args += 'send_frame_size=1024,recv_frame_size=1024'
+ else:
+ rf_dev_args += ''
+ else:
+ # MIMO config
rf_dev_args += 'num_recv_frames=64,num_send_frames=64'
+ if self._num_prb > 50:
+ # Reduce over the wire format to sc12
+ rf_dev_args += ',otw_format=sc12'
config.overlay(values, dict(enb=dict(rf_dev_args=rf_dev_args)))