From 51ce70c826bed1caad3360dd44635fbaf0d043d3 Mon Sep 17 00:00:00 2001
From: Raymond Knopp <raymond.knopp@eurecom.fr>
Date: Thu, 18 Jun 2015 14:41:38 +0000
Subject: [PATCH] initial timing advance bandwidth scaling
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7595 818b1a75-f10b-46b9-bf7c-635c3b92a50f
---
openair1/SCHED/phy_procedures_lte_eNb.c | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/openair1/SCHED/phy_procedures_lte_eNb.c b/openair1/SCHED/phy_procedures_lte_eNb.c
index b8c75bd245..39a67e9252 100755
--- a/openair1/SCHED/phy_procedures_lte_eNb.c
+++ b/openair1/SCHED/phy_procedures_lte_eNb.c
@@ -3124,11 +3124,33 @@ void prach_procedures(PHY_VARS_eNB *phy_vars_eNB,uint8_t sched_subframe,uint8_t
preamble_energy_max%10,
preamble_delay_list[preamble_max]);
#ifdef OPENAIR2
+ uint8_t update_TA=4;
+
+ switch (phy_vars_eNB->lte_frame_parms.N_RB_DL) {
+ case 6:
+ update_TA = 16;
+ break;
+
+ case 25:
+ update_TA = 4;
+ break;
+
+ case 50:
+ update_TA = 2;
+ break;
+
+ case 100:
+ update_TA = 1;
+ break;
+ }
+
+
+
mac_xface->initiate_ra_proc(phy_vars_eNB->Mod_id,
phy_vars_eNB->CC_id,
frame,
preamble_max,
- preamble_delay_list[preamble_max],
+ preamble_delay_list[preamble_max]*update_TA,
0,subframe,0);
#endif
--
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