yigid/openairinterface5g
1
0
Fork 0
mirror of https://gitlab.eurecom.fr/oai/openairinterface5g.git synced 2026-07-13 04:30:28 +00:00
Code Issues Packages Projects Releases Wiki Activity

add documentation for disable_harq flag in NTN section of doc/RUNMODEM.md

Browse Source
This commit is contained in:
Thomas Schlichter
2024-07-23 10:42:10 +02:00
parent b76eb19471
commit fae529b384
1 changed files with 14 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
doc/RUNMODEM.md
View File

@@ -182,6 +182,20 @@ Besides this, some timers, e.g. `sr_ProhibitTimer_v1700`, `t300`, `t301` and `t3
...
```
To improve the achievable UL and DL throughput in conditions with large RTT, there is a feature defined in REL17 to disable HARQ feedback.
This allows to reuse HARQ processes immediately, but it breaks compatibility with UEs not supporting this REL17 feature.
To enable this feature, the `disable_harq` flag has to be added to the gNB conf file in the section `gNBs.[0]`
```
...
sib1_tda = 5;
min_rxtxtime = 6;
disable_harq = 1; // <--
servingCellConfigCommon = (
{
...
```
So with these modifications to the file `targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band66.fr1.25PRB.usrpx300.conf` an example gNB command for FDD, 5 MHz BW, 15 kHz SCS, GEO satellite 5G NR NTN is this:
```
cd cmake_targets