srs_andre has uploaded this change for review. ( 
https://gerrit.osmocom.org/c/osmo-gsm-tester/+/20606 )


Change subject: lte: update UHD device args for MIMO usage
......................................................................

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
---
M src/osmo_gsm_tester/obj/enb_amarisoft.py
M src/osmo_gsm_tester/obj/enb_srs.py
M src/osmo_gsm_tester/obj/ms_srs.py
3 files changed, 47 insertions(+), 19 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-gsm-tester 
refs/changes/06/20606/1

diff --git a/src/osmo_gsm_tester/obj/enb_amarisoft.py 
b/src/osmo_gsm_tester/obj/enb_amarisoft.py
index 5b8e05e..4495f47 100644
--- a/src/osmo_gsm_tester/obj/enb_amarisoft.py
+++ b/src/osmo_gsm_tester/obj/enb_amarisoft.py
@@ -183,16 +183,24 @@
                 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._txmode == 1:
+                    # 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
+                    if self._num_prb == 6:
+                        rf_dev_args += 
'send_frame_size=512,recv_frame_size=512'
+                    else:
+                        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'
+                    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)))

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)))

diff --git a/src/osmo_gsm_tester/obj/ms_srs.py 
b/src/osmo_gsm_tester/obj/ms_srs.py
index 701794f..22e110d 100644
--- a/src/osmo_gsm_tester/obj/ms_srs.py
+++ b/src/osmo_gsm_tester/obj/ms_srs.py
@@ -306,12 +306,21 @@
                 rf_dev_args = values['ue'].get('rf_dev_args', '')
                 rf_dev_args += ',' if rf_dev_args != '' and not 
rf_dev_args.endswith(',') else ''

-                if self.enb.num_prb() < 25:
-                    rf_dev_args += 'send_frame_size=512,recv_frame_size=512'
-                elif self.enb.num_prb() == 25:
-                    rf_dev_args += 'send_frame_size=1024,recv_frame_size=1024'
-                elif self.enb.num_prb() > 50:
+                if self.enb.num_prb() == 75:
+                    rf_dev_args += 'master_clock_rate=15.36e6,'
+
+                if self.enb.num_ports() == 1:
+                    # SISO config
+                    if self.enb.num_prb() < 25:
+                        rf_dev_args += 
'send_frame_size=512,recv_frame_size=512'
+                    elif self.enb.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'
+                    # For the UE the otw12 format doesn't seem to work very 
well

                 config.overlay(values, dict(ue=dict(rf_dev_args=rf_dev_args)))


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Gerrit-Project: osmo-gsm-tester
Gerrit-Branch: master
Gerrit-Change-Id: I3785bb96eb7c10a6b10b3d1a86fa71d1f787a7a3
Gerrit-Change-Number: 20606
Gerrit-PatchSet: 1
Gerrit-Owner: srs_andre <an...@softwareradiosystems.com>
Gerrit-MessageType: newchange

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