+#define ODU_START_CRNTI 100
+#define ODU_END_CRNTI 500
+
+/* LCID */
+#define SRB0_LCID 0
+#define SRB1_LCID 1
+#define SRB2_LCID 2
+#define SRB3_LCID 3
+#define MIN_DRB_LCID 4
+#define MAX_DRB_LCID 32
+
+#define FREQ_DOM_RSRC_SIZE 6 /* i.e. 6 bytes because Size of frequency domain resource is 45 bits */
+#define PUCCH_FORMAT_0 0
+#define PUCCH_FORMAT_1 1
+#define PUCCH_FORMAT_2 2
+#define PUCCH_FORMAT_3 3
+#define PUCCH_FORMAT_4 4
+
+#define BANDWIDTH_20MHZ 20
+#define BANDWIDTH_100MHZ 100
+
+/* PRB allocation as per 38.101, Section 5.3.2 */
+#define TOTAL_PRB_20MHZ_MU0 106
+#define TOTAL_PRB_100MHZ_MU1 273
+
+/* Defining macros for common utility functions */
+#define ODU_GET_MSG_BUF SGetMsg
+#define ODU_PUT_MSG_BUF SPutMsg
+#define ODU_ADD_PRE_MSG_MULT SAddPreMsgMult
+#define ODU_ADD_PRE_MSG_MULT_IN_ORDER SAddPreMsgMultInOrder
+#define ODU_ADD_POST_MSG_MULT SAddPstMsgMult
+#define ODU_START_TASK SStartTask
+#define ODU_STOP_TASK SStopTask
+#define ODU_ATTACH_TTSK SAttachTTsk
+#define ODU_POST_TASK SPstTsk
+#define ODU_COPY_MSG_TO_FIX_BUF SCpyMsgFix
+#define ODU_COPY_FIX_BUF_TO_MSG SCpyFixMsg
+#define ODU_REG_TTSK SRegTTsk
+#define ODU_SET_PROC_ID SSetProcId
+#define ODU_GET_MSG_LEN SFndLenMsg
+#define ODU_EXIT_TASK SExitTsk
+#define ODU_PRINT_MSG SPrntMsg
+#define ODU_REM_PRE_MSG SRemPreMsg
+#define ODU_REM_PRE_MSG_MULT SRemPreMsgMult
+#define ODU_REG_TMR_MT SRegTmrMt
+#define ODU_SEGMENT_MSG SSegMsg
+#define ODU_CAT_MSG SCatMsg
+#define ODU_GET_PROCID SFndProcId
+#define ODU_SET_THREAD_AFFINITY SSetAffinity
+#define ODU_CREATE_TASK SCreateSTsk