+uint8_t BuildAndSendF1SetupReq();
+uint8_t BuildAndSendDUConfigUpdate();
+uint8_t BuildAndSendInitialRrcMsgTransfer(uint32_t gnbDuUeF1apId, uint16_t crnti, uint16_t rrcContSize,
+ uint8_t *rrcContainer);
+uint8_t BuildAndSendULRRCMessageTransfer(DuUeCb *ueCb, uint8_t lcId, uint16_t msgLen, uint8_t *rrcMsg);
+uint8_t procUeRecfgCellInfo(DuMacUeCfg *macUeCfg, DuMacUeCfg *storedMacUeCfg, void *cellGrp);
+void freeUeRecfgCellGrpInfo(DuMacUeCfg *macUeCfg);
+uint8_t BuildAndSendUeCtxtRsp(uint8_t cellId, uint8_t ueId);
+uint8_t getDrbLcId(uint32_t *drbBitMap);
+void freeMacLcCfg(LcCfg *lcCfg);
+void freeRlcLcCfg(RlcBearerCfg *lcCfg);
+uint8_t BuildAndSendRrcDeliveryReport(uint32_t gnbCuUeF1apId, uint32_t gnbDuUeF1apId, RrcDeliveryReport *rrcDelivery);
+uint8_t sctpSend(Buffer *mBuf, uint8_t itfType);
+uint8_t duProcDlRrcMsg(F1DlRrcMsg *dlRrcMsg);
+uint8_t duProcUeContextSetupRequest(DuUeCb *ueCb);
+void duFillModulationDetails(DuMacUeCfg *ueCfg, DuMacUeCfg *oldUeCfg, void *ueCap);
+int8_t getReAsmblTmr(uint8_t reAsmblTmrCfg);
+int16_t getStatProhTmr(uint8_t statProhTmrCfg);
+uint8_t duProcUeContextModReq(DuUeCb *ueCb);
+uint8_t BuildAndSendUeContextModRsp(DuUeCb *ueCb);
+uint8_t BuildAndSendUeContextReleaseReq(uint16_t cellId, uint8_t ueId);
+uint8_t BuildAndSendUeContextReleaseComplete(uint16_t cellId, uint32_t gnbCuUeF1apId, uint32_t gnbDuUeF1apId);
+uint8_t duSendCellDeletReq(uint16_t cellId);
+uint8_t duProcUeContextReleaseCommand(uint16_t cellId, DuUeCb *duUeCb);