Merge "<JIRA ID: ODUHIGH-332 : Change in TBS calculation part as per TS 38.214 sectio...

[o-du/l2.git] / src / 5gnrsch / sch_utils.c

diff --git a/src/5gnrsch/sch_utils.c b/src/5gnrsch/sch_utils.c
index 5e014f9..1e4cab2 100644 (file)
--- a/src/5gnrsch/sch_utils.c
+++ b/src/5gnrsch/sch_utils.c
@@ -133,6 +133,288 @@ uint16_t numRbForPrachTable[MAX_RACH_NUM_RB_IDX][5] = {
 {   139,  120,   120,  12,  2    }, /* index 15 */
 };
 
+#ifdef NR_TDD
+
+/* prach config index Table 6.3.3.2-3 spec 38.211 
+ * PRACH format given as follows:
+ * 0 = 0
+ * 1 = 1
+ * 2 = 2
+ * 3 = 3
+ * 4 = A1
+ * 5 = A2
+ * 6 = A3
+ * 7 = B1
+ * 8 = B4
+ * 9 = C0
+ * 10 = C2
+ * 11 = A1/B1
+ * 12 = A2/B2
+ * 13 = A3/B3 
+ * Subframe num is represented considering 0-9 bits and
+ * value 1 corresponds to the subframe that is valid 
+ */
+
+uint16_t prachCfgIdxTable[MAX_PRACH_CONFIG_IDX][8] = {
+{ 0, 16,  1,  512,  0,  0,  0,  0 }, /* index 0   */
+{ 0,  8,  1,  512,  0,  0,  0,  0 }, /* index 1   */
+{ 0,  4,  1,  512,  0,  0,  0,  0 }, /* index 2   */
+{ 0,  2,  0,  512,  0,  0,  0,  0 }, /* index 3   */
+{ 0,  2,  1,  512,  0,  0,  0,  0 }, /* index 4   */
+{ 0,  2,  0,   16,  0,  0,  0,  0 }, /* index 5   */
+{ 0,  2,  1,   16,  0,  0,  0,  0 }, /* index 6   */
+{ 0,  1,  0,  512,  0,  0,  0,  0 }, /* index 7   */
+{ 0,  1,  0,  256,  0,  0,  0,  0 }, /* index 8   */
+{ 0,  1,  0,  128,  0,  0,  0,  0 }, /* index 9   */
+{ 0,  1,  0,   64,  0,  0,  0,  0 }, /* index 10  */
+{ 0,  1,  0,   32,  0,  0,  0,  0 }, /* index 11  */
+{ 0,  1,  0,   16,  0,  0,  0,  0 }, /* index 12  */
+{ 0,  1,  0,    8,  0,  0,  0,  0 }, /* index 13  */
+{ 0,  1,  0,    4,  0,  0,  0,  0 }, /* index 14  */
+{ 0,  1,  0,   66,  0,  0,  0,  0 }, /* index 15  */
+{ 0,  1,  0,   66,  7,  0,  0,  0 }, /* index 16  */
+{ 0,  1,  0,  528,  0,  0,  0,  0 }, /* index 17  */
+{ 0,  1,  0,  264,  0,  0,  0,  0 }, /* index 18  */
+{ 0,  1,  0,  132,  0,  0,  0,  0 }, /* index 19  */
+{ 0,  1,  0,  768,  0,  0,  0,  0 }, /* index 20  */
+{ 0,  1,  0,  784,  0,  0,  0,  0 }, /* index 21  */
+{ 0,  1,  0,  536,  0,  0,  0,  0 }, /* index 22  */
+{ 0,  1,  0,  896,  0,  0,  0,  0 }, /* index 23  */
+{ 0,  1,  0,  792,  0,  0,  0,  0 }, /* index 24  */
+{ 0,  1,  0,  960,  0,  0,  0,  0 }, /* index 25  */
+{ 0,  1,  0,  594,  0,  0,  0,  0 }, /* index 26  */
+{ 0,  1,  0,  682,  0,  0,  0,  0 }, /* index 27  */
+{ 1, 16,  1,  128,  0,  0,  0,  0 }, /* index 28  */
+{ 1,  8,  1,  128,  0,  0,  0,  0 }, /* index 29  */
+{ 1,  4,  1,  128,  0,  0,  0,  0 }, /* index 30  */
+{ 1,  2,  0,  128,  0,  0,  0,  0 }, /* index 31  */
+{ 1,  2,  1,  128,  0,  0,  0,  0 }, /* index 32  */
+{ 1,  1,  0,  128,  0,  0,  0,  0 }, /* index 33  */
+{ 2, 16,  1,   64,  0,  0,  0,  0 }, /* index 34  */
+{ 2,  8,  1,   64,  0,  0,  0,  0 }, /* index 35  */
+{ 2,  4,  1,   64,  0,  0,  0,  0 }, /* index 36  */
+{ 2,  2,  0,   64,  7,  0,  0,  0 }, /* index 37  */
+{ 2,  2,  1,   64,  7,  0,  0,  0 }, /* index 38  */
+{ 2,  1,  0,   64,  7,  0,  0,  0 }, /* index 39  */
+{ 3, 16,  1,  512,  0,  0,  0,  0 }, /* index 40  */
+{ 3,  8,  1,  512,  0,  0,  0,  0 }, /* index 41  */
+{ 3,  4,  1,  512,  0,  0,  0,  0 }, /* index 42  */
+{ 3,  2,  0,  512,  0,  0,  0,  0 }, /* index 43  */
+{ 3,  2,  1,  512,  0,  0,  0,  0 }, /* index 44  */
+{ 3,  2,  0,   16,  0,  0,  0,  0 }, /* index 45  */
+{ 3,  2,  1,   16,  0,  0,  0,  0 }, /* index 46  */
+{ 3,  1,  0,  512,  0,  0,  0,  0 }, /* index 47  */
+{ 3,  1,  0,  256,  0,  0,  0,  0 }, /* index 48  */
+{ 3,  1,  0,  128,  0,  0,  0,  0 }, /* index 49  */
+{ 3,  1,  0,   64,  0,  0,  0,  0 }, /* index 50  */
+{ 3,  1,  0,   32,  0,  0,  0,  0 }, /* index 51  */
+{ 3,  1,  0,   16,  0,  0,  0,  0 }, /* index 52  */
+{ 3,  1,  0,    8,  0,  0,  0,  0 }, /* index 53  */
+{ 3,  1,  0,    4,  0,  0,  0,  0 }, /* index 54  */
+{ 3,  1,  0,   66,  0,  0,  0,  0 }, /* index 55  */
+{ 3,  1,  0,   66,  7,  0,  0,  0 }, /* index 56  */
+{ 3,  1,  0,  528,  0,  0,  0,  0 }, /* index 57  */
+{ 3,  1,  0,  264,  0,  0,  0,  0 }, /* index 58  */
+{ 3,  1,  0,  132,  0,  0,  0,  0 }, /* index 59  */
+{ 3,  1,  0,  768,  0,  0,  0,  0 }, /* index 60  */
+{ 3,  1,  0,  784,  0,  0,  0,  0 }, /* index 61  */
+{ 3,  1,  0,  536,  0,  0,  0,  0 }, /* index 62  */
+{ 3,  1,  0,  896,  0,  0,  0,  0 }, /* index 63  */
+{ 3,  1,  0,  792,  0,  0,  0,  0 }, /* index 64  */
+{ 3,  1,  0,  594,  0,  0,  0,  0 }, /* index 65  */
+{ 3,  1,  0,  682,  0,  0,  0,  0 }, /* index 66  */
+{ 4, 16,  1,  512,  0,  2,  6,  2 }, /* index 67  */
+{ 4,  8,  1,  512,  0,  2,  6,  2 }, /* index 68  */
+{ 4,  4,  1,  512,  0,  1,  6,  2 }, /* index 69  */
+{ 4,  2,  1,  512,  0,  1,  6,  2 }, /* index 70  */
+{ 4,  2,  1,  528,  7,  1,  3,  2 }, /* index 71  */
+{ 4,  2,  1,  640,  7,  1,  3,  2 }, /* index 72  */
+{ 4,  2,  1,  640,  0,  1,  6,  2 }, /* index 73  */
+{ 4,  2,  1,  768,  0,  2,  6,  2 }, /* index 74  */
+{ 4,  2,  1,  528,  0,  2,  6,  2 }, /* index 75  */
+{ 4,  2,  1,  924,  0,  1,  6,  2 }, /* index 76  */
+{ 4,  1,  0,  512,  0,  2,  6,  2 }, /* index 77  */
+{ 4,  1,  0,  512,  7,  1,  3,  2 }, /* index 78  */
+{ 4,  1,  0,  512,  0,  1,  6,  2 }, /* index 79  */
+{ 4,  1,  0,  768,  0,  2,  6,  2 }, /* index 80  */
+{ 4,  1,  0,  528,  0,  1,  6,  2 }, /* index 81  */
+{ 4,  1,  0,  640,  7,  1,  3,  2 }, /* index 82  */
+{ 4,  1,  0,  792,  0,  1,  6,  2 }, /* index 83  */
+{ 4,  1,  0,  792,  0,  2,  6,  2 }, /* index 84  */
+{ 4,  1,  0,  682,  0,  1,  6,  2 }, /* index 85  */
+{ 4,  1,  0, 1023,  7,  1,  3,  2 }, /* index 86  */
+{ 5, 16,  1,  512,  0,  2,  3,  4 }, /* index 87  */
+{ 5,  8,  1,  512,  0,  2,  3,  4 }, /* index 88  */
+{ 5,  4,  1,  512,  0,  1,  3,  4 }, /* index 89  */
+{ 5,  2,  1,  640,  0,  1,  3,  4 }, /* index 90  */
+{ 5,  2,  1,  768,  0,  2,  3,  4 }, /* index 91  */
+{ 5,  2,  1,  640,  9,  1,  1,  4 }, /* index 92  */
+{ 5,  2,  1,  528,  9,  1,  1,  4 }, /* index 93  */
+{ 5,  2,  1,  528,  0,  2,  3,  4 }, /* index 94  */
+{ 5,  2,  1,  924,  0,  1,  3,  4 }, /* index 95  */
+{ 5,  1,  0,    4,  0,  1,  3,  4 }, /* index 96  */
+{ 5,  1,  0,  128,  0,  1,  3,  4 }, /* index 97  */
+{ 5,  2,  1,  512,  0,  1,  3,  4 }, /* index 98  */
+{ 5,  1,  0,  512,  0,  2,  3,  4 }, /* index 99  */
+{ 5,  1,  0,  512,  9,  1,  1,  4 }, /* index 100  */
+{ 5,  1,  0,  512,  0,  1,  3,  4 }, /* index 101  */
+{ 5,  1,  0,  132,  0,  1,  3,  4 }, /* index 102  */
+{ 5,  1,  0,  768,  0,  2,  3,  4 }, /* index 103  */
+{ 5,  1,  0,  528,  0,  1,  3,  4 }, /* index 104  */
+{ 5,  1,  0,  640,  9,  1,  1,  4 }, /* index 105  */
+{ 5,  1,  0,  792,  0,  1,  3,  4 }, /* index 106  */
+{ 5,  1,  0,  792,  0,  2,  3,  4 }, /* index 107  */
+{ 5,  1,  0,  682,  0,  1,  3,  4 }, /* index 108  */
+{ 5,  1,  0, 1023,  9,  1,  1,  4 }, /* index 109  */
+{ 6, 16,  1,  512,  0,  2,  2,  6 }, /* index 110  */
+{ 6,  8,  1,  512,  0,  2,  2,  6 }, /* index 111  */
+{ 6,  4,  1,  512,  0,  1,  2,  6 }, /* index 112  */
+{ 6,  2,  1,  528,  7,  1,  1,  6 }, /* index 113  */
+{ 6,  2,  1,  640,  7,  1,  1,  6 }, /* index 114  */
+{ 6,  2,  1,  640,  0,  1,  2,  6 }, /* index 115  */
+{ 6,  2,  1,  528,  0,  2,  2,  6 }, /* index 116  */
+{ 6,  2,  1,  768,  0,  2,  2,  6 }, /* index 117  */
+{ 6,  2,  1,  924,  0,  1,  2,  6 }, /* index 118  */
+{ 6,  1,  0,    4,  0,  1,  2,  6 }, /* index 119  */
+{ 6,  1,  0,  128,  0,  1,  2,  6 }, /* index 120  */
+{ 6,  2,  1,  512,  0,  1,  2,  6 }, /* index 121  */
+{ 6,  1,  0,  512,  0,  2,  2,  6 }, /* index 122  */
+{ 6,  1,  0,  512,  7,  1,  1,  6 }, /* index 123  */
+{ 6,  1,  0,  512,  0,  1,  2,  6 }, /* index 124  */
+{ 6,  1,  0,  132,  0,  1,  2,  6 }, /* index 125  */
+{ 6,  1,  0,  768,  0,  2,  2,  6 }, /* index 126  */
+{ 6,  1,  0,  528,  0,  1,  2,  6 }, /* index 127  */
+{ 6,  1,  0,  640,  7,  1,  1,  6 }, /* index 128  */
+{ 6,  1,  0,  792,  0,  1,  2,  6 }, /* index 129  */
+{ 6,  1,  0,  792,  0,  2,  2,  6 }, /* index 130  */
+{ 6,  1,  0,  682,  0,  1,  2,  6 }, /* index 131  */
+{ 6,  1,  0, 1023,  7,  1,  1,  6 }, /* index 132  */
+{ 7,  4,  1,  512,  2,  1,  6,  2 }, /* index 133  */
+{ 7,  2,  1,  512,  2,  1,  6,  2 }, /* index 134  */
+{ 7,  2,  1,  640,  2,  1,  6,  2 }, /* index 135  */
+{ 7,  2,  1,  528,  8,  1,  3,  2 }, /* index 136  */
+{ 7,  2,  1,  528,  2,  2,  6,  2 }, /* index 137  */
+{ 7,  1,  0,  512,  2,  2,  6,  2 }, /* index 138  */
+{ 7,  1,  0,  512,  8,  1,  3,  2 }, /* index 139  */
+{ 7,  1,  0,  512,  2,  1,  6,  2 }, /* index 140  */
+{ 7,  1,  0,  768,  2,  2,  6,  2 }, /* index 141  */
+{ 7,  1,  0,  528,  2,  1,  6,  2 }, /* index 142  */
+{ 7,  1,  0,  640,  8,  1,  3,  2 }, /* index 143  */
+{ 7,  1,  0,  682,  2,  1,  6,  2 }, /* index 144  */
+{ 8, 16,  1,  512,  0,  2,  1, 12 }, /* index 145  */
+{ 8,  8,  1,  512,  0,  2,  1, 12 }, /* index 146  */
+{ 8,  4,  1,  512,  2,  1,  1, 12 }, /* index 147  */
+{ 8,  2,  1,  512,  0,  1,  1, 12 }, /* index 148  */
+{ 8,  2,  1,  512,  2,  1,  1, 12 }, /* index 149  */
+{ 8,  2,  1,  640,  2,  1,  1, 12 }, /* index 150  */
+{ 8,  2,  1,  528,  2,  1,  1, 12 }, /* index 151  */
+{ 8,  2,  1,  528,  0,  2,  1, 12 }, /* index 152  */
+{ 8,  2,  1,  768,  0,  2,  1, 12 }, /* index 153  */
+{ 8,  2,  1,  924,  0,  1,  1, 12 }, /* index 154  */
+{ 8,  1,  0,    2,  0,  1,  1, 12 }, /* index 155  */
+{ 8,  1,  0,    4,  0,  1,  1, 12 }, /* index 156  */
+{ 8,  1,  0,   16,  0,  1,  1, 12 }, /* index 157  */
+{ 8,  1,  0,  128,  0,  1,  1, 12 }, /* index 158  */
+{ 8,  1,  0,  512,  0,  1,  1, 12 }, /* index 159  */
+{ 8,  1,  0,  512,  2,  1,  1, 12 }, /* index 160  */
+{ 8,  1,  0,  512,  0,  2,  1, 12 }, /* index 161  */
+{ 8,  1,  0,  528,  2,  1,  1, 12 }, /* index 162  */
+{ 8,  1,  0,  640,  2,  1,  1, 12 }, /* index 163  */
+{ 8,  1,  0,  768,  0,  2,  1, 12 }, /* index 164  */
+{ 8,  1,  0,  792,  2,  1,  1, 12 }, /* index 165  */
+{ 8,  1,  0,  682,  2,  1,  1, 12 }, /* index 166  */
+{ 8,  1,  0, 1023,  0,  2,  1, 12 }, /* index 167  */
+{ 8,  1,  0, 1023,  2,  1,  1, 12 }, /* index 168  */
+{ 9, 16,  1,  512,  2,  2,  6,  2 }, /* index 169  */
+{ 9,  8,  1,  512,  2,  2,  6,  2 }, /* index 170  */
+{ 9,  4,  1,  512,  2,  1,  6,  2 }, /* index 171  */
+{ 9,  2,  1,  512,  2,  1,  6,  2 }, /* index 172  */
+{ 9,  2,  1,  768,  2,  2,  6,  2 }, /* index 173  */
+{ 9,  2,  1,  640,  2,  1,  6,  2 }, /* index 174  */
+{ 9,  2,  1,  640,  8,  1,  3,  2 }, /* index 175  */
+{ 9,  2,  1,  528,  8,  1,  3,  2 }, /* index 176  */
+{ 9,  2,  1,  528,  2,  2,  6,  2 }, /* index 177  */
+{ 9,  2,  1,  924,  2,  1,  6,  2 }, /* index 178  */
+{ 9,  1,  0,  512,  2,  2,  6,  2 }, /* index 179  */
+{ 9,  1,  0,  512,  8,  1,  3,  2 }, /* index 180  */
+{ 9,  1,  0,  512,  2,  1,  6,  2 }, /* index 181  */
+{ 9,  1,  0,  768,  2,  2,  6,  2 }, /* index 182  */
+{ 9,  1,  0,  528,  2,  1,  6,  2 }, /* index 183  */
+{ 9,  1,  0,  640,  8,  1,  3,  2 }, /* index 184  */
+{ 9,  1,  0,  792,  2,  1,  6,  2 }, /* index 185  */
+{ 9,  1,  0,  792,  2,  2,  6,  2 }, /* index 186  */
+{ 9,  1,  0,  682,  2,  1,  6,  2 }, /* index 187  */
+{ 9,  1,  0, 1023,  8,  1,  3,  2 }, /* index 188  */
+{10, 16,  1,  512,  2,  2,  2,  6 }, /* index 189  */
+{10,  8,  1,  512,  2,  2,  2,  6 }, /* index 190  */
+{10,  4,  1,  512,  2,  1,  2,  6 }, /* index 191  */
+{10,  2,  1,  512,  2,  1,  2,  6 }, /* index 192  */
+{10,  2,  1,  768,  2,  2,  2,  6 }, /* index 193  */
+{10,  2,  1,  640,  2,  1,  2,  6 }, /* index 194  */
+{10,  2,  1,  640,  8,  1,  1,  6 }, /* index 195  */
+{10,  2,  1,  528,  8,  1,  1,  6 }, /* index 196  */
+{10,  2,  1,  528,  2,  2,  2,  6 }, /* index 197  */
+{10,  2,  1,  924,  2,  1,  2,  6 }, /* index 198  */
+{10,  8,  1,  512,  8,  2,  1,  6 }, /* index 199  */
+{10,  4,  1,  512,  8,  1,  1,  6 }, /* index 200  */
+{10,  1,  0,  512,  2,  2,  2,  6 }, /* index 201  */
+{10,  1,  0,  512,  8,  1,  1,  6 }, /* index 202  */
+{10,  1,  0,  512,  2,  1,  2,  6 }, /* index 203  */
+{10,  1,  0,  768,  2,  2,  2,  6 }, /* index 204  */
+{10,  1,  0,  528,  2,  1,  2,  6 }, /* index 205  */
+{10,  1,  0,  640,  8,  1,  1,  6 }, /* index 206  */
+{10,  1,  0,  792,  2,  1,  2,  6 }, /* index 207  */
+{10,  1,  0,  792,  2,  2,  2,  6 }, /* index 208  */
+{10,  1,  0,  682,  2,  1,  2,  6 }, /* index 209  */
+{10,  1,  0, 1023,  8,  1,  1,  6 }, /* index 210  */
+{11,  2,  1,  512,  2,  1,  6,  2 }, /* index 211  */
+{11,  2,  1,  528,  8,  1,  3,  2 }, /* index 212  */
+{11,  2,  1,  640,  8,  1,  3,  2 }, /* index 213  */
+{11,  2,  1,  640,  2,  1,  6,  2 }, /* index 214  */
+{11,  2,  1,  528,  2,  2,  6,  2 }, /* index 215  */
+{11,  2,  1,  768,  2,  2,  6,  2 }, /* index 216  */
+{11,  1,  0,  512,  2,  2,  6,  2 }, /* index 217  */
+{11,  1,  0,  512,  8,  1,  3,  2 }, /* index 218  */
+{11,  1,  0,  512,  2,  1,  6,  2 }, /* index 219  */
+{11,  1,  0,  768,  2,  2,  6,  2 }, /* index 220  */
+{11,  1,  0,  528,  2,  1,  6,  2 }, /* index 221  */
+{11,  1,  0,  640,  8,  1,  3,  2 }, /* index 222  */
+{11,  1,  0,  792,  2,  2,  6,  2 }, /* index 223  */
+{11,  1,  0,  682,  2,  1,  6,  2 }, /* index 224  */
+{11,  1,  0, 1023,  8,  1,  3,  2 }, /* index 225  */
+{12,  2,  1,  512,  0,  1,  3,  4 }, /* index 226  */
+{12,  2,  1,  528,  6,  1,  2,  4 }, /* index 227  */
+{12,  2,  1,  640,  6,  1,  2,  4 }, /* index 228  */
+{12,  2,  1,  528,  0,  2,  3,  4 }, /* index 229  */
+{12,  2,  1,  768,  0,  2,  3,  4 }, /* index 230  */
+{12,  1,  0,  512,  0,  2,  3,  4 }, /* index 231  */
+{12,  1,  0,  512,  6,  1,  2,  4 }, /* index 232  */
+{12,  1,  0,  512,  0,  1,  3,  4 }, /* index 233  */
+{12,  1,  0,  768,  0,  2,  3,  4 }, /* index 234  */
+{12,  1,  0,  528,  0,  1,  3,  4 }, /* index 235  */
+{12,  1,  0,  640,  6,  1,  2,  4 }, /* index 236  */
+{12,  1,  0,  792,  0,  1,  3,  4 }, /* index 237  */
+{12,  1,  0,  792,  0,  2,  3,  4 }, /* index 238  */
+{12,  1,  0,  682,  0,  1,  3,  4 }, /* index 239  */
+{12,  1,  0, 1023,  6,  1,  2,  4 }, /* index 240  */
+{13,  2,  1,  512,  0,  1,  2,  6 }, /* index 241  */
+{13,  2,  1,  528,  2,  1,  2,  6 }, /* index 242  */
+{13,  2,  1,  640,  0,  1,  2,  6 }, /* index 243  */
+{13,  2,  1,  640,  2,  1,  2,  6 }, /* index 244  */
+{13,  2,  1,  528,  0,  2,  2,  6 }, /* index 245  */
+{13,  2,  1,  768,  0,  2,  2,  6 }, /* index 246  */
+{13,  1,  0,  512,  0,  2,  2,  6 }, /* index 247  */
+{13,  1,  0,  512,  2,  1,  2,  6 }, /* index 248  */
+{13,  1,  0,  512,  0,  1,  2,  6 }, /* index 249  */
+{13,  1,  0,  768,  0,  2,  2,  6 }, /* index 250  */
+{13,  1,  0,  528,  0,  1,  2,  6 }, /* index 251  */
+{13,  1,  0,  640,  2,  1,  2,  6 }, /* index 252  */
+{13,  1,  0,  792,  0,  2,  2,  6 }, /* index 253  */
+{13,  1,  0,  682,  0,  1,  2,  6 }, /* index 254  */
+{13,  1,  0, 1023,  2,  1,  2,  6 }  /* index 255  */
+};
+
+#else
 /* prach config index Table 6.3.3.2-2 spec 38.211 
  * PRACH format given as follows:
  * 0 = 0
@@ -411,6 +693,7 @@ uint16_t prachCfgIdxTable[MAX_PRACH_CONFIG_IDX][8] = {
 {10,  1,  0, 1023,  0,  2,  2,  6 }, /* index 254  */
 {10,  1,  0,  682,  0,  2,  2,  6 }  /* index 255  */
 };
+#endif
 
 /* Defintion of delta value Table 6.1.2.1.1-5 spec 38.214 */
 uint8_t puschDeltaTable[MAX_MU_PUSCH] = { 2, 3, 4, 6 };
@@ -535,6 +818,7 @@ uint16_t schCalcNumPrb(uint16_t tbSize, uint16_t mcs, uint8_t numSymbols)
    uint8_t  qm     = mcsTable[mcs][1];
    uint16_t rValue = mcsTable[mcs][2];
    uint8_t  numLayer = 1;       /* v value */
+   uint8_t  numDmrsRePerPrb = 12;
 
    tbSize = tbSize * 8; //Calculate tbSize in bits
 
@@ -545,7 +829,7 @@ uint16_t schCalcNumPrb(uint16_t tbSize, uint16_t mcs, uint8_t numSymbols)
 
    nre = ceil( (float)tbSize * 1024 / (qm * rValue * numLayer));
 
-   nreDash = ceil( (12 * numSymbols) - NUM_DMRS_SYMBOLS - 0);
+   nreDash = ceil( (12 * numSymbols) - numDmrsRePerPrb - 0);
 
    if (nreDash > 156)
       nre = 156;
@@ -714,7 +998,7 @@ void schInitDlSlot(SchDlSlotInfo *schDlSlotInfo)
 #ifdef NR_TDD
 
 /**
- * @brief determines slot format
+ * @brief determines slot/symbol format
  *
  * @details
  *