added 2 more files

openair1/PHY/LTE_TRANSPORT/slbch.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 1.1  (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/pss.c
+* \brief Top-level routines for generating primary synchronization signal (PSS) V8.6 2009-03
+* \author F. Kaltenberger, O. Tonelli, R. Knopp
+* \date 2011
+* \version 0.1
+* \company Eurecom
+* \email: florian.kaltenberger@eurecom.fr, oscar.tonelli@yahoo.it,knopp@eurecom.fr
+* \note
+* \warning
+*/
+/* file: pss.c
+   purpose: generate the primary synchronization signals of LTE
+   author: florian.kaltenberger@eurecom.fr, oscar.tonelli@yahoo.it
+   date: 21.10.2009
+*/
+
+//#include "defs.h"
+#include "PHY/defs.h"
+#include "PHY/extern.h"
+
+#define PSBCH_A 40
+#define PSBCH_E 1008 //12REs/PRB*6PRBs*7symbols*2 bits/RB
+
+int generate_slbch(int32_t **txdataF,
+		   short amp,
+		   LTE_DL_FRAME_PARMS *frame_parms,
+		   unsigned short symbol,
+		   int subframe,
+		   uint8_t *slmib) {
+  
+  uint8_t slbch_a[PSBCH_A>>3];
+  uint32_t psbch_D;
+  uint8_t psbch_d[96+(3*(16+PBCH_A))];
+  uint8_t psbch_w[3*3*(16+PBCH_A)];
+  uint8_t psbch_e[PSBCH_E];
+  uint8_t RCC;
+  int a;
+
+  psbch_D    = 16+PSBCH_A;
+  
+  AssertFatal(frame_parms->Ncp==NORMAL,"Only Normal Prefix supported for Sidelink\n");
+  AssertFatal(frame_parms->Ncp==NORMAL,"Only Normal Prefix supported for Sidelink\n");
+
+	      
+  for (int i=0; i<(PSBCH_A>>3); i++)
+    slbch_a[(PSBCH_A>>3)-i-1] = slmib[i];
+
+  ccodelte_encode(PSBCH_A,2,slbch_a,psbch_d+96,0);
+  RCC = sub_block_interleaving_cc(psbch_D,psbch_d+96,psbch_w);
+  
+  lte_rate_matching_cc(RCC,PSBCH_E,psbch_w,psbch_e);
+
+  pbch_scrambling(frame_parms,
+		  psbch_e,
+		  PSBCH_E,
+		  1);
+  int symb=0;
+  uint8_t *eptr = psbch_e;
+  int16_t *txptr;
+  int k;
+
+  a = (amp*SQRT_18_OVER_32_Q15)>>(15-2);
+  int Nsymb=14;
+
+  for (symb=0;symb<10;symb++) {
+    k = frame_parms->ofdm_symbol_size-36;
+    txptr = (int16_t*)&txdataF[0][subframe*Nsymb*frame_parms->ofdm_symbol_size+(symb*frame_parms->ofdm_symbol_size)];
+    // first half (negative frequencies)
+    for (int i=0;i<72;i++) {
+      if (*eptr++ == 1) txptr[k] =-a;
+      else              txptr[k] = a;
+      
+      k++;
+    }    
+    k=0;
+    // second half (positive frequencies)
+    for (int i=0;i<72;i++) {
+      if (*eptr++ == 1) txptr[k] =-a;
+      else              txptr[k] = a;
+      
+      k++;
+    }
+    if (symb==0) symb+=3;
+  }
+
+  // scale by sqrt(72/62)
+  // note : we have to scale for TX power requirements too, beta_PSBCH !
+
+  //  //printf("[PSS] amp=%d, a=%d\n",amp,a);
+  
+  
+  return(0);
+}