ue adding nr_compute_tbs and nr_segmentation

2018-08-31 17:32:17 +02:00
parent c631c064ec
commit 9d3980aa19
3 changed files with 120 additions and 2 deletions
@@ -1171,6 +1171,8 @@ set(PHY_SRC_COMMON
  ${OPENAIR1_DIR}/PHY/LTE_REFSIG/lte_dl_mbsfn.c
  ${OPENAIR1_DIR}/PHY/LTE_REFSIG/lte_ul_ref.c
  ${OPENAIR1_DIR}/PHY/CODING/lte_segmentation.c
+  ${OPENAIR1_DIR}/PHY/CODING/nr_segmentation.c
+  ${OPENAIR1_DIR}/PHY/CODING/nr_compute_tbs.c
  ${OPENAIR1_DIR}/PHY/CODING/ccoding_byte.c
  ${OPENAIR1_DIR}/PHY/CODING/ccoding_byte_lte.c
  ${OPENAIR1_DIR}/PHY/CODING/3gpplte_sse.c
@@ -0,0 +1,116 @@
+/*
+ * 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: nr_compute_tbs.c
+   purpose: Compute NR TBS
+   author: Hongzhi WANG (TCL)
+*/
+//#include "PHY/defs.h"
+//#include "SCHED/extern.h"
+
+#define INDEX_MAX_TBS_TABLE (93)
+//Table 5.1.3.1-1
+uint16_t Mcsindextable1[29][3] = {{2,120,0.2344},
+           	   	   	   	   	   	 {2,157,0.3066},
+								 {2,193,0.3770},
+								 {2,251,0.4902},
+								 {2,308,0.6016},
+								 {2,379,0.7402},
+								 {2,449,0.8770},
+								 {2,526,1.0273},
+								 {2,602,1.1758},
+								 {2,679,1.3262},
+								 {4,340,1.3281},
+								 {4,378,1.4766},
+								 {4,434,1.6953},
+								 {4,490,1.9141},
+								 {4,553,2.1602},
+								 {4,616,2.4063},
+								 {4,658,2.5703},
+								 {6,438,2.5664},
+								 {6,466,2.7305},
+								 {6,517,3.0293},
+								 {6,567,3.3223},
+								 {6,616,3.6094},
+								 {6,666,3.9023},
+								 {6,719,4.2129},
+								 {6,772,4.5234},
+								 {6,822,4.8164},
+								 {6,873,5.1152},
+								 {6,910,5.3320},
+								 {6,948,5.5547}};
+
+uint16_t Tbstable_nr[INDEX_MAX_TBS_TABLE] = {24,32,40,48,56,64,72,80,88,96,104,112,120,128,136,144,152,160,168,176,184,192,208,224,240,256,272,288,304,320,336,352,368,384,408,432,456,480,504,528,552,576,608,640,672,704,736,768,808,848,888,928,984,1032,1064,1128,1160,1192,1224,1256,1288,1320,1352,1416,1480,1544,1608,1672,1736,1800,1864,1928,2024,2088,2152,2216,2280,2408,2472,2536,2600,2664,2728,2792,2856,2976,3104,3240,3368,3496,3624,3752,3824};
+
+uint32_t nr_compute_tbs(uint8_t mcs, uint16_t nb_rb,uint16_t nb_symb_sch,uint8_t nb_re_dmrs,uint16_t length_dmrs, uint8_t Nl)
+{
+
+	uint16_t nbp_re, nb_re, nb_dmrs_prb, nb_rb_oh, Ninfo,Np_info,n,Qm,R,C;
+	uint32_t nr_tbs;
+
+	nb_rb_oh = 0; //set to 0 if not configured by higher layer
+	Qm = Mcsindextable1[mcs][0];
+	R  = Mcsindextable1[mcs][1];
+	nb_dmrs_prb = nb_re_dmrs*length_dmrs;
+
+	nbp_re = 12 * nb_symb_sch - nb_dmrs_prb - nb_rb_oh;
+
+	nb_re = min(156, nbp_re) * nb_rb;
+
+    // Intermediate number of information bits
+    Ninfo = (nb_re * R * Qm * Nl)/1024;
+
+    //printf("Ninfo %d nbp_re %d nb_re %d Qm %d, R %d\n", Ninfo, nbp_re, nb_re, Qm, R);
+
+    if (Ninfo <=3824) {
+
+    	n = max(3, floor(log2(Ninfo)) - 6);
+        Np_info = max(24, pow(n,2) * floor(Ninfo/pow(n,2)));
+
+        for (int i=0; i<INDEX_MAX_TBS_TABLE; i++) {
+        	if (Tbstable_nr[i] >= Np_info){
+        		nr_tbs = Tbstable_nr[i];
+        		break;
+        	}
+        }
+    }
+    else {
+    	n = floor(log2(Ninfo-24)) - 5;
+        Np_info = max(3840, pow(n,2) * round((Ninfo - 24)/pow(n,2)));
+
+        if (R <= 1/4) {
+            C = ceil( (Np_info + 24)/3816 );
+            nr_tbs = 8 * C * ceil( (Np_info + 24)/(8*C) ) - 24;
+        }
+        else {
+            if (Np_info > 8424){
+                C = ceil( (Np_info + 24)/8424 );
+                nr_tbs = 8 * C * ceil( (Np_info + 24)/(8*C) ) - 24;
+            }
+            else
+            	nr_tbs = 8 * ceil( (Np_info + 24)/8 ) - 24;
+
+        }
+
+    }
+
+	return nr_tbs;
+}
@@ -24,8 +24,8 @@
   author: Hongzhi WANG (TCL)
   date: 12.09.2017
 */
-#include "PHY/defs.h"
-#include "SCHED/extern.h"
+//#include "PHY/defs.h"
+//#include "SCHED/extern.h"

 //#define DEBUG_SEGMENTATION