SLDCH RX

openair1/PHY/INIT/defs.h

@@ -324,6 +324,15 @@ void phy_config_dedicated_eNB_step2(PHY_VARS_eNB *phy_vars_eNB);
  */
 int phy_init_secsys_eNB(PHY_VARS_eNB *phy_vars_eNb);
 
+/*!
+\fn void phy_config_SL(int Mod_id,SLDCH_t *sldch_rx,SLSCH_t *slsch_rx)
+\brief Configure PHY Sidelink parameters .
+@param Mod_id
+@param sldch_rx Sidelink discovery channel configuration
+@param slsch_rx Sidelink Control/Shared channel configuration
+ */
+int phy_config_SL(int Mod_id,SLDCH_t *sldch_rx,SLSCH_t *slsch_rx);
+
 void free_lte_top(void);
 
 void init_lte_top(LTE_DL_FRAME_PARMS *lte_frame_parms);

openair1/PHY/INIT/lte_init_ue.c

@@ -627,6 +627,16 @@ void phy_init_lte_ue__PDSCH( LTE_UE_PDSCH* const pdsch, const LTE_DL_FRAME_PARMS
   }
 }
 
+int phy_config_SL(int Mod_id,SLDCH_t *sldch_rx,SLSCH_t *slsch_rx) {
+
+   PHY_VARS_UE *ue=PHY_vars_UE_g[Mod_id][0];
+
+   memcpy((void*)&ue->sldch_rx,(void*)sldch_rx,sizeof(SLDCH_t));
+   memcpy((void*)&ue->slsch_rx,(void*)slsch_rx,sizeof(SLSCH_t));
+
+   return(0);
+}
+
 int init_lte_ue_signal(PHY_VARS_UE *ue,
 		       int nb_connected_eNB,
 		       uint8_t abstraction_flag)

openair1/PHY/LTE_TRANSPORT/slsch.c

@@ -784,7 +784,7 @@ void generate_slsch(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,SLSCH_t *slsch,int fram
 }
 
 
-void pscch_decoding(PHY_VARS_UE *ue,int frame_rx,int subframe_rx,int a,int slot) {
+void pscch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subframe_rx,int a,int slot) {
 
   int Nsymb = 7 - slot;
   SLSCH_t *slsch = &ue->slsch_rx;
@@ -809,7 +809,7 @@ void pscch_decoding(PHY_VARS_UE *ue,int frame_rx,int subframe_rx,int a,int slot)
   else                             nprb = slsch->prb_End_SC-(slsch->N_SL_RB_SC>>1)+amod;
 
   // slot FEP
-  if (ue->sl_fep_done == 0) {
+  if (proc->sl_fep_done == 0) {
     RU_t ru_tmp;
     memset((void*)&ru_tmp,0,sizeof(RU_t));
     
@@ -1068,7 +1068,7 @@ void pscch_decoding(PHY_VARS_UE *ue,int frame_rx,int subframe_rx,int a,int slot)
 
 }	
 
-void rx_slcch(PHY_VARS_UE *ue,int frame_rx,int subframe_rx) {
+void rx_slcch(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subframe_rx) {
 
   AssertFatal(frame_rx<1024 && frame_rx>=0,"frame %d is illegal\n",frame_rx);
   AssertFatal(subframe_rx<10 && subframe_rx>=0,"subframe %d is illegal\n",subframe_rx);
@@ -1118,8 +1118,8 @@ void rx_slcch(PHY_VARS_UE *ue,int frame_rx,int subframe_rx) {
   uint32_t b1=slsch->n_pscch%LPSCCH;
   uint32_t b2=(slsch->n_pscch + 1 + (a1%(LPSCCH-1)))%LPSCCH;
 
-  if (absSF_modP == b1)      pscch_decoding(ue,frame_rx,subframe_rx,a1,0);	
-  else if (absSF_modP == b2) pscch_decoding(ue,frame_rx,subframe_rx,a2,1);
+  if (absSF_modP == b1)      pscch_decoding(ue,proc,frame_rx,subframe_rx,a1,0);	
+  else if (absSF_modP == b2) pscch_decoding(ue,proc,frame_rx,subframe_rx,a2,1);
   else return;
 
 
@@ -1143,8 +1143,8 @@ void slsch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
   LOG_I(PHY,"slsch_decoding %d.%d => lmod10 %d\n",frame_rx,subframe_rx,ljmod10);
 
   // slot FEP
-  if (ue->sl_fep_done == 0) {
-    ue->sl_fep_done = 1;
+  if (proc->sl_fep_done == 0) {
+    proc->sl_fep_done = 1;
     RU_t ru_tmp;
     memset((void*)&ru_tmp,0,sizeof(RU_t));
     

openair1/PHY/defs.h

@@ -625,6 +625,8 @@ typedef struct {
   int sub_frame_start;
   int sub_frame_step;
   unsigned long long gotIQs;
+  /// indicator that slot_fep has been done for subframe (for sidelink)
+  int sl_fep_done;
 } UE_rxtx_proc_t;
 
 /// Context data structure for eNB subframe processing
@@ -1299,7 +1301,6 @@ typedef struct {
   // This is for SIC in the UE, to store the reencoded data
   LTE_eNB_DLSCH_t  *dlsch_eNB[NUMBER_OF_CONNECTED_eNB_MAX];
   // Sidelink-specific variables
-  int              sl_fep_done;
   SL_chan_t        sl_chan;
   LTE_eNB_DLSCH_t  *dlsch_slsch;
   LTE_UE_ULSCH_t   *ulsch_slsch;
@@ -1331,6 +1332,7 @@ typedef struct {
   uint32_t         slsch_errors;
   uint32_t         slsch_rxcnt[4];
   SLDCH_t          *sldch;
+  SLDCH_t          sldch_rx;
   int              sldch_sdu_active;
   pthread_mutex_t  slss_mutex;
   pthread_mutex_t  sldch_mutex;

openair1/SCHED/phy_procedures_lte_ue.c

@@ -4793,7 +4793,11 @@ void phy_procedures_UE_SL_RX(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc) {
 
   LOG_D(PHY,"SFN.SF %d.%d Running Steady-state SL UE procedures\n",frame_rx,subframe_rx);
 
-  if ((frame_rx&3) == 0 && subframe_rx == 0) rx_psbch(ue,frame_rx,subframe_rx);
+  proc->sl_fep_done = 0;
+
+  if (ue->is_SynchRef == 0 && (frame_rx&3) == 0 && subframe_rx == 0) rx_psbch(ue,frame_rx,subframe_rx);
+
+  rx_sldch(ue,proc,frame_rx,subframe_rx);
 
 
 }

openair2/LAYER2/MAC/config_ue.c

@@ -740,6 +740,7 @@ rrc_mac_config_req_ue(module_id_t Mod_idP,
   /// Number of retransmissions (numRetx-r12)
     UE_mac_inst[Mod_idP].sldch.numRetx = discrxpool->numRetx_r13;
 
+    phy_config_SL(Mod_idP,&UE_mac_inst[Mod_idP].sldch,&UE_mac_inst[Mod_idP].slsch);
 
   }
   if (directFrameNumber_r12<1025) UE_mac_inst[Mod_idP].directFrameNumber_r12     = directFrameNumber_r12;