Change in osmo-gsm-tester[master]: enb_srs: add extra head room for max rate with 6 PRB in MIMO mode

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srs_andre gerrit-no-reply at lists.osmocom.org
Tue Jun 2 20:43:52 UTC 2020


srs_andre has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-gsm-tester/+/18636 )


Change subject: enb_srs: add extra head room for max rate with 6 PRB in MIMO mode
......................................................................

enb_srs: add extra head room for max rate with 6 PRB in MIMO mode

the overhead with 6 PRB and MIMO is a bit higher when compared
to other PRBs resulting in lower achievable throughput

Change-Id: I63888435553bba4f7be88cc745e24472921a7fb4
---
M src/osmo_gsm_tester/obj/enb_srs.py
1 file changed, 3 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-gsm-tester refs/changes/36/18636/1

diff --git a/src/osmo_gsm_tester/obj/enb_srs.py b/src/osmo_gsm_tester/obj/enb_srs.py
index 33ee16b..2a05930 100644
--- a/src/osmo_gsm_tester/obj/enb_srs.py
+++ b/src/osmo_gsm_tester/obj/enb_srs.py
@@ -254,6 +254,9 @@
         # MIMO only supported for Downlink
         if downlink and self._txmode > 2:
             max_rate *= 2
+            # For 6 PRBs the max throughput is significantly lower
+            if self.num_prb() == 6:
+                max_rate *= 0.85
 
         return max_rate
 

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Gerrit-Project: osmo-gsm-tester
Gerrit-Branch: master
Gerrit-Change-Id: I63888435553bba4f7be88cc745e24472921a7fb4
Gerrit-Change-Number: 18636
Gerrit-PatchSet: 1
Gerrit-Owner: srs_andre <andre at softwareradiosystems.com>
Gerrit-MessageType: newchange
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