NB_generate_dci_top skeleton, code not compiled

openair1/PHY/LTE_TRANSPORT/dci_nb_iot.c

+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.0  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+/*! \file PHY/LTE_TRANSPORT/dci.c
+* \brief Implements PDCCH physical channel TX/RX procedures (36.211) and DCI encoding/decoding (36.212/36.213). Current LTE compliance V8.6 2009-03.
+* \author R. Knopp
+* \date 2011
+* \version 0.1
+* \company Eurecom
+* \email: knopp@eurecom.fr
+* \note
+* \warning
+*/
+#ifdef USER_MODE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#endif
+#include "PHY/defs.h"
+#include "PHY/extern.h"
+#include "SCHED/defs.h"
+#include "SIMULATION/TOOLS/defs.h" // for taus 
+#include "PHY/sse_intrin.h"
+
+#include "assertions.h" 
+#include "T.h"
+
+uint8_t generate_dci_top_NB(uint8_t Num_dci,
+                         DCI_ALLOC_t *dci_alloc,
+                         uint32_t n_rnti,
+                         int16_t amp,
+                         LTE_DL_FRAME_PARMS *frame_parms,
+                         //NB_IoT_eNB_NPDCCH_t npdcch,
+                         int32_t **txdataF,
+                         uint32_t subframe)
+{
+
+  uint8_t *e_ptr,num_pdcch_symbols;
+  int8_t L;
+  uint32_t i, lprime;
+  uint32_t gain_lin_QPSK,kprime,kprime_mod12,mprime,nsymb,symbol_offset,tti_offset;
+  int16_t re_offset;
+  uint8_t mi = get_mi(frame_parms,subframe);
+  static uint8_t e[DCI_BITS_MAX];
+  static int32_t yseq0[Msymb],yseq1[Msymb],wbar0[Msymb],wbar1[Msymb];
+
+  int32_t *y[2];
+  int32_t *wbar[2]; 
+
+  int nushiftmod3 = frame_parms->nushift%3;
+
+  int split_flag=0;
+
+  /*
+  **e_ptr : store the encoding result, and as a input to modulation
+  *num_pdcch_symbols : to calculate the resource allocation for pdcch
+  *L = aggregation level (there is 2 (at most) in NB-IoT) (Note this is not the real value but the index)
+  *lprime,kprime,kprime_mod12,mprime,nsymb,symbol_offset,tti_offset,re_offset : used in the REG allocation
+  *gain_lin_QPSK,yseq0[Msymb],yseq1[Msymb],*y[2] : used in the modulation
+  *mi = used in interleaving
+  *e = used to store the taus sequence (taus sequence is used to generate the first sequence for DCI)
+  *wbar used in the interleaving and also REG allocation
+  */
+
+  //num_pdcch_symbols = get_num_pdcch_symbols(num_ue_spec_dci+num_common_dci,dci_alloc,frame_parms,subframe);
+
+  wbar[0] = &wbar0[0];
+  wbar[1] = &wbar1[0];
+  y[0] = &yseq0[0];
+  y[1] = &yseq1[0];
+
+  // reset all bits to <NIL>, here we set <NIL> elements as 2
+  // memset(e, 2, DCI_BITS_MAX);
+  // here we interpret NIL as a random QPSK sequence. That makes power estimation easier.
+  for (i=0; i<DCI_BITS_MAX; i++)
+    e[i]=taus()&1;
+
+  e_ptr = e;
+
+  // generate DCIs in order of decreasing aggregation level, then common/ue spec
+  // MAC is assumed to have ordered the UE spec DCI according to the RNTI-based randomization
+  // there is only 2 aggregation (0 = 1, 1 = 2)
+  for (L=1; L>=0; L--) {
+    for (i=0; i<Num_dci; i++) {
+
+      if (dci_alloc[i].L == (uint8_t)L) {
+
+        if (dci_alloc[i].firstCCE>=0) {
+          //encoding
+          e_ptr = generate_dci0(dci_alloc[i].dci_pdu,e+(72*dci_alloc[i].firstCCE),dci_alloc[i].dci_length,dci_alloc[i].L,dci_alloc[i].rnti);
+
+          //new NB-IoT
+          npdcch_encoding_NB_IoT(
+              dci_alloc[i].dci_pdu,
+          frame_parms,
+          npdcch, //see when function dci_top is called
+          //no frame
+          subframe
+          //rm_stats, te_stats, i_stats
+                      );
+
+
+        }
+      }
+    }
+
+  }
+
+  // Scrambling
+  //pdcch_scrambling(frame_parms,subframe,e,8*get_nquad(num_pdcch_symbols, frame_parms, mi));
+
+
+
+  //NB-IoT--------------------------
+  /*
+   * switch(npdcch_start_index)
+   * case 0
+   * G = 272
+   * case 1
+   * G = 248
+   * case 2
+   * G = 224
+   * case 3
+   * G = 200
+   */
+
+
+  npdcch_scrambling_NB_IoT(
+              frame_parms,
+          npdcch,
+          //G,
+          //q = nf mod 2 (TS 36.211 ch 10.2.3.1)  with nf = number of frame
+          //slot_id
+                    );
+
+
+
+  //NB-IoT
+  npdcch_modulation_NB_IoT(
+      txdataF,
+      AMP,
+      frame_parms,
+      //no symbol
+      //npdcch0???
+      //RB_ID --> statically get from the higher layer (may included in the dl_frame params)
+      );
+
+
+
+
+  // This is the interleaving procedure defined in 36-211, first part of Section 6.8.5
+  //pdcch_interleaving(frame_parms,&y[0],&wbar[0],num_pdcch_symbols,mi);
+  //in NB-IoT the interleaving is done directly with the encoding procedure
+  //there is no interleaving because we don't apply turbo coding
+
+
+  // This is the REG allocation algorithm from 36-211, second part of Section 6.8.5
+  // there is a function to do the resource mapping function
+
+  return 0;
+}

openair1/PHY/LTE_TRANSPORT/dci_tools_nb_iot.c

@@ -74,7 +74,8 @@ int NB_generate_eNB_ulsch_params_from_dci(PHY_VARS_eNB_NB *eNB,
 {
 
   void *ULSCH_DCI_NB = NULL;
-  DCI_PDU_NB *DCI_pdu;
+
+  eNB->DCI_pdu = (DCI_PDU_NB*) malloc(sizeof(DCI_PDU_NB));
 
   /// type = 0 => DCI Format N0, type = 1 => DCI Format N1, 1 bits
   uint8_t type;
@@ -119,9 +120,9 @@ int NB_generate_eNB_ulsch_params_from_dci(PHY_VARS_eNB_NB *eNB,
       ((DCIN0_t *)ULSCH_DCI_NB)->ndi       =ndi;
       ((DCIN0_t *)ULSCH_DCI_NB)->DCIRep    =DCIRep;
 
-      DCI_pdu->Num_dci = Num_dci;
+      eNB->DCI_pdu->Num_dci = Num_dci;
 
-      NB_add_dci(DCI_pdu,ULSCH_DCI_NB,rnti,sizeof(DCIN0_t),aggregation,sizeof_DCIN0_t,DCIFormatN0);
+      NB_add_dci(eNB->DCI_pdu,ULSCH_DCI_NB,rnti,sizeof(DCIN0_t),aggregation,sizeof_DCIN0_t,DCIFormatN0);
 
       // use this value to configure PHY both harq_processes and resource mapping.
 
@@ -149,7 +150,7 @@ int NB_generate_eNB_dlsch_params_from_dci(int frame,
 {
 
   void *DLSCH_DCI_NB = NULL;
-  DCI_PDU_NB *DCI_pdu;
+  eNB->DCI_pdu = (DCI_PDU_NB*) malloc(sizeof(DCI_PDU_NB));
 
 
   //N1 start
@@ -211,9 +212,9 @@ int NB_generate_eNB_dlsch_params_from_dci(int frame,
     ((DCIN1_RAR_t *)DLSCH_DCI_NB)->HARQackRes     =HARQackRes;
     ((DCIN1_RAR_t *)DLSCH_DCI_NB)->DCIRep         =DCIRep;
 
-    DCI_pdu->Num_dci = Num_dci;
+    eNB->DCI_pdu->Num_dci = Num_dci;
 
-    NB_add_dci(DCI_pdu,DLSCH_DCI_NB,rnti,sizeof(DCIN1_RAR_t),aggregation,sizeof_DCIN1_RAR_t,DCIFormatN1_RAR);
+    NB_add_dci(eNB->DCI_pdu,DLSCH_DCI_NB,rnti,sizeof(DCIN1_RAR_t),aggregation,sizeof_DCIN1_RAR_t,DCIFormatN1_RAR);
 
 
     // use this value to configure PHY both harq_processes and resource mapping.
@@ -243,9 +244,9 @@ int NB_generate_eNB_dlsch_params_from_dci(int frame,
     ((DCIN1_t *)DLSCH_DCI_NB)->HARQackRes     =HARQackRes;
     ((DCIN1_t *)DLSCH_DCI_NB)->DCIRep         =DCIRep;
 
-    DCI_pdu->Num_dci = Num_dci;
+    eNB->DCI_pdu->Num_dci = Num_dci;
 
-    NB_add_dci(DCI_pdu,DLSCH_DCI_NB,rnti,sizeof(DCIN1_t),aggregation,sizeof_DCIN1_t,DCIFormatN1);
+    NB_add_dci(eNB->DCI_pdu,DLSCH_DCI_NB,rnti,sizeof(DCIN1_t),aggregation,sizeof_DCIN1_t,DCIFormatN1);
 
     // use this value to configure PHY both harq_processes and resource mapping.
 
@@ -260,9 +261,9 @@ int NB_generate_eNB_dlsch_params_from_dci(int frame,
     ((DCIN2_Ind_t *)DLSCH_DCI_NB)->directIndInf   =directIndInf;
     ((DCIN2_Ind_t *)DLSCH_DCI_NB)->resInfoBits    =resInfoBits;
 
-    DCI_pdu->Num_dci = Num_dci;
+    eNB->DCI_pdu->Num_dci = Num_dci;
 
-    NB_add_dci(DCI_pdu,DLSCH_DCI_NB,rnti,sizeof(DCIN2_Ind_t),aggregation,sizeof_DCIN2_Ind_t,DCIFormatN2_Ind);
+    NB_add_dci(eNB->DCI_pdu,DLSCH_DCI_NB,rnti,sizeof(DCIN2_Ind_t),aggregation,sizeof_DCIN2_Ind_t,DCIFormatN2_Ind);
 
     // use this value to configure PHY both harq_processes and resource mapping.
 
@@ -282,9 +283,9 @@ int NB_generate_eNB_dlsch_params_from_dci(int frame,
     ((DCIN2_Pag_t *)DLSCH_DCI_NB)->RepNum    =RepNum;
     ((DCIN2_Pag_t *)DLSCH_DCI_NB)->DCIRep    =DCIRep;
 
-    DCI_pdu->Num_dci = Num_dci;
+    eNB->DCI_pdu->Num_dci = Num_dci;
 
-    NB_add_dci(DCI_pdu,DLSCH_DCI_NB,rnti,sizeof(DCIN2_Pag_t),aggregation,sizeof_DCIN2_Pag_t,DCIFormatN2_Pag);
+    NB_add_dci(eNB->DCI_pdu,DLSCH_DCI_NB,rnti,sizeof(DCIN2_Pag_t),aggregation,sizeof_DCIN2_Pag_t,DCIFormatN2_Pag);
 
     // use this value to configure PHY both harq_processes and resource mapping.
 

openair1/PHY/defs.h

@@ -479,6 +479,7 @@ typedef struct PHY_VARS_eNB_s {
   //NB-IoT------------------------
   NB_IoT_eNB_NPBCH npbch;
   NB_IoT_eNB_NPDCCH_t *npdcch[NUMBER_OF_UE_MAC_NB_IoT]; //check the max size of this array
+  DCI_PDU_NB DCI_pdu;
 
   /// cell-specific reference symbols
   uint32_t         lte_gold_table[20][2][14];

openair2/PHY_INTERFACE/IF_Module_nb_iot.h

@@ -164,6 +164,14 @@ typedef struct{
 
  }npdcch_t;
 
+ typedef struct{
+	//for indicate receiving the NPUSCH
+	nfapi_ul_config_nulsch_pdu				nulsch_pdu;
+	//for indicate receiving the NPRACH
+	nfapi_ul_config_nrach_pdu				nrach_pdu;
+
+ }nulsch_t;
+
 typedef union{
 
 	npdcch_t NB_DCI;
@@ -172,6 +180,8 @@ typedef union{
 
  	npbch_t NB_BCH;
 
+ 	nulsch_t NB_UL;
+
 }NB_DL_u;