From 726a543abf90b99e5fd54ca30e9b39f61c406019 Mon Sep 17 00:00:00 2001
From: "Wilson W.K. Thong" <wilsonthong@astri.org>
Date: Thu, 24 Nov 2016 20:07:55 +0800
Subject: [PATCH] fixed missing a slot_fep() processing on the 1st OFDM symbol
of the first DL subframe after UL, causing no SI-RNTI DCI detected
---
openair1/SCHED/phy_procedures_lte_ue.c | 41 +++++++++++++++++++-------
1 file changed, 30 insertions(+), 11 deletions(-)
diff --git a/openair1/SCHED/phy_procedures_lte_ue.c b/openair1/SCHED/phy_procedures_lte_ue.c
index 5dc629b90bb..91d5fefb668 100644
--- a/openair1/SCHED/phy_procedures_lte_ue.c
+++ b/openair1/SCHED/phy_procedures_lte_ue.c
@@ -3299,11 +3299,23 @@ int phy_procedures_UE_RX(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,uint8_t eNB_id,uin
l2 = (ue->frame_parms.symbols_per_tti/2)-1;
}
- //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
- // RX processing of symbols l=1...l2 (l=0 is done in last scheduling epoch)
- //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-
+#if 1 // 2016-11-24 wilson fixed missing slot_fep on 1st ofdm symbol of the first DL subframe after UL
+ int prev_subframe_rx = (subframe_rx - 1)<0? 9: (subframe_rx - 1);
+ if (subframe_select(&ue->frame_parms,prev_subframe_rx) != SF_DL) {
+ //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ // RX processing of symbols l=0...l2
+ //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ l=0;
+ } else {
+ //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ // RX processing of symbols l=1...l2 (l=0 is done in last scheduling epoch)
+ //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ l=1;
+ }
+ for (; l<=l2; l++) {
+#else
for (l=1; l<=l2; l++) {
+#endif
if (abstraction_flag == 0) {
start_meas(&ue->ofdm_demod_stats);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SLOT_FEP, VCD_FUNCTION_IN);
@@ -3424,13 +3436,20 @@ int phy_procedures_UE_RX(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,uint8_t eNB_id,uin
ue_measurement_procedures(l-1,ue,proc,eNB_id,abstraction_flag,mode);
} // for l=1..l2
- // do first symbol of next subframe for channel estimation
- slot_fep(ue,
- 0,
- (2+(subframe_rx<<1))%20,
- ue->rx_offset,
- 0,
- 0);
+
+#if 1 // 2016-11-24 wilson fixed missing slot_fep on 1st ofdm symbol of the first DL subframe after UL
+ // do first symbol of next downlink subframe for channel estimation
+ int next_subframe_rx = (1+subframe_rx)%10;
+ if (subframe_select(&ue->frame_parms,next_subframe_rx) != SF_UL)
+#endif
+ {
+ slot_fep(ue,
+ 0,
+ (next_subframe_rx<<1),
+ ue->rx_offset,
+ 0,
+ 0);
+ }
} // not an S-subframe
// run pbch procedures if subframe is 0
--
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