srs_{ue,enb}: change UHD stream args and buffer size as function of cell width for B2XX
Change-Id: I2de0526ee9bd2f7bb75c7d529b3f52d75117c5cc
diff --git a/src/osmo_gsm_tester/srs_enb.py b/src/osmo_gsm_tester/srs_enb.py
index 91881c0..15c1e0c 100644
--- a/src/osmo_gsm_tester/srs_enb.py
+++ b/src/osmo_gsm_tester/srs_enb.py
@@ -208,6 +208,25 @@
+ ',id=enb,base_srate=' + str(base_srate)
config.overlay(values, dict(enb=dict(rf_dev_args=rf_dev_args)))
+ # Set UHD frame size as a function of the cell bandwidth on B2XX
+ if self._conf.get('rf_dev_type') == 'UHD' and values['enb'].get('rf_dev_args', None) is not None:
+ if 'b200' in values['enb'].get('rf_dev_args'):
+ 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:
+ 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)))
+
self.config_file = self.run_dir.child(srsENB.CFGFILE)
self.config_sib_file = self.run_dir.child(srsENB.CFGFILE_SIB)
self.config_rr_file = self.run_dir.child(srsENB.CFGFILE_RR)