Change in osmocom-bb[master]: trxcon/scheduler: reduce default Uplink burst scheduling advance

[fixeria]

fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmocom-bb/+/19234 )


Change subject: trxcon/scheduler: reduce default Uplink burst scheduling advance
......................................................................

trxcon/scheduler: reduce default Uplink burst scheduling advance

In general, premature scheduling of to be transmitted bursts
inevitably increases the time delay between Uplink and Downlink.
The more we advance TDMA frame number, the greater gets this
delay.  20 TDMA frames is definitely more than a regular
transceiver needs to pre-process a burst before transmission.

Change-Id: Ia9b142b59d95f2cd7b2394596cf72c0bcd36d711
Related: OS#4487
---
M src/host/trxcon/trxcon.c
1 file changed, 2 insertions(+), 2 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/34/19234/1

diff --git a/src/host/trxcon/trxcon.c b/src/host/trxcon/trxcon.c
index dfce2b8..8efa6a7 100644
--- a/src/host/trxcon/trxcon.c
+++ b/src/host/trxcon/trxcon.c
@@ -160,7 +160,7 @@
 	printf("  -b --trx-bind     TRX bind IP address (default 0.0.0.0)\n");
 	printf("  -i --trx-remote   TRX remote IP address (default 127.0.0.1)\n");
 	printf("  -p --trx-port     Base port of TRX instance (default 6700)\n");
-	printf("  -f --trx-advance  Scheduler clock advance (default 20)\n");
+	printf("  -f --trx-advance  Uplink burst scheduling advance (default 3)\n");
 	printf("  -s --socket       Listening socket for layer23 (default /tmp/osmocom_l2)\n");
 	printf("  -g --gsmtap-ip    The destination IP used for GSMTAP (disabled by default)\n");
 	printf("  -D --daemonize    Run as daemon\n");
@@ -233,7 +233,7 @@
 	app_data.trx_remote_ip = "127.0.0.1";
 	app_data.trx_bind_ip = "0.0.0.0";
 	app_data.trx_base_port = 6700;
-	app_data.trx_fn_advance = 20;
+	app_data.trx_fn_advance = 3;
 
 	app_data.debug_mask = NULL;
 	app_data.gsmtap_ip = NULL;

-- 
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Gerrit-Project: osmocom-bb
Gerrit-Branch: master
Gerrit-Change-Id: Ia9b142b59d95f2cd7b2394596cf72c0bcd36d711
Gerrit-Change-Number: 19234
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <vyanitskiy at sysmocom.de>
Gerrit-MessageType: newchange
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