diff --git a/OneM2M_Testcases_CSE_Release_1.ttcn b/OneM2M_Testcases_CSE_Release_1.ttcn
index 3518ff29bd61f895d875b8b7783dceac2360d5a7..0ca47412fe8abf8808d6140d25d65b7b06355857 100644
--- a/OneM2M_Testcases_CSE_Release_1.ttcn
+++ b/OneM2M_Testcases_CSE_Release_1.ttcn
@@ -3286,6 +3286,164 @@ module OneM2M_Testcases_CSE_Release_1 {
 
 				}//end TC_CSE_REG_DEL_005
 				
+				/**
+				 * @desc Check that the IUT accepts an AE de-registration when AE-ID is starting with “S”
+				 * 
+				 */
+				testcase TC_CSE_REG_DEL_006() runs on Tester system CseSystem {
+					
+					var CseSimu v_cse1 := CseSimu.create("CSE1") alive;
+					v_cse1.start(f_setProtocolBinding(PX_PROTOCOL_BINDING_CSE1));
+					v_cse1.done;
+							
+					v_cse1.start(f_CSE_REG_DEL_006());
+				  	  	
+					v_cse1.done;
+				  	  		
+				}
+						
+				function f_CSE_REG_DEL_006() runs on CseSimu {
+		  	  	
+					var RequestPrimitive v_request;
+					var template RequestPrimitive v_updateAeAnnc := mw_updateAEAnnc;
+					var integer v_cseBaseIndex := -1;
+					var integer v_aeIndex := -1;
+					var integer v_aeIndex_ae1 := -1;
+					var integer v_aeAnncIndex := -1;
+					var ResourceType v_resourceType := int2;
+					
+					//Test control
+					if(not(PICS_MN_CSE)) {
+						setverdict(inconc, __SCOPE__ & ": IUT shall be MN-CSE to run this test case");
+						stop;
+					}
+	                
+					// Test component configuration
+					f_cf02UpCseSimuMaster(int1);
+		  	  	
+					//Preamble
+					vc_remoteCseIndex := f_cse_registrationRemoteCse(mw_createRemoteCSE);
+					
+					vc_ae1.start(f_cse_createResource(int2, m_createAe(PX_APP_ID, omit, "S")));
+					
+					v_aeAnncIndex := f_cse_announcementProcedure_createHandler(-, -, -);
+					
+					f_cseSimu_checkComponentDoneAndGetVerdict(vc_ae1);
+					
+					v_aeIndex_ae1 := f_getLatestResourceIndex(vc_ae1);
+					
+					v_aeIndex := f_getLatestResource(vc_ae1);
+					
+					//Test Body
+					vc_ae1.start(f_cse_deleteResource(v_aeIndex_ae1));
+					v_updateAeAnnc.primitiveContent.aEAnnc.link := "INACTIVE";
+					
+					tc_ac.start;
+					alt {
+						[] mccPortIn.receive(mw_request(v_updateAeAnnc)) -> value vc_request {
+							tc_ac.stop;
+							setverdict(pass, __SCOPE__ & ": AE Announced UPDATE received");
+							f_processUpdateRequestPrimitive(vc_request.primitive.requestPrimitive);
+							mccPortIn.send(f_getMsgOutPrimitive(m_response(vc_response.primitive.responsePrimitive)));
+						}
+						[] mccPortIn.receive(mw_request(mw_update)) {
+							tc_ac.stop;
+							setverdict(fail, __SCOPE__ & ": Wrong UPDATE request received ");
+						}
+						[] tc_ac.timeout {
+							setverdict(fail, __SCOPE__ & ": No answer while creating AE");
+						}
+					}	
+					
+					f_cseSimu_checkComponentDoneAndGetVerdict(vc_ae1);
+									
+					// Postamble
+					f_cse_postamble_deleteResourcesCSE();
+					
+					// Tear down
+					f_cf02DownCseSimuMaster();
+						
+				}
+
+				/**
+				 * @desc Check that the IUT accepts the response from IN-CSE for the AE de-registration when AE-ID is starting with “S”
+				 * 
+				 */
+				testcase TC_CSE_REG_DEL_007() runs on Tester system CseSystem {
+					
+					var AeSimu v_ae1 := AeSimu.create("AE1") alive;
+					v_ae1.start(f_setProtocolBinding(PX_PROTOCOL_BINDING_AE1));
+					v_ae1.done;
+						
+					v_ae1.start(f_CSE_REG_DEL_007());
+			  	  	v_ae1.done;
+			  	  		
+				}
+					
+				function f_CSE_REG_DEL_007() runs on AeSimu {
+		  	  	
+					var MsgIn v_response;
+					var RequestPrimitive v_request;
+					var integer v_aeIndex := -1;
+					var template RequestPrimitive v_updateAeAnnc := mw_updateAEAnnc;
+					
+					//Test control
+					if(not(PICS_MN_CSE)) {
+						setverdict(inconc, __SCOPE__ & ": IUT shall be MN-CSE to run this test case");
+						stop;
+					}
+	                
+					// Test component configuration
+					f_cf02Up();
+		  	  	
+					//Preamble
+					vc_cse1.start(f_cse_registrationRemoteCse(mw_createRemoteCSE));
+					vc_cse1.done;
+					
+					v_aeIndex := f_cse_createResource(int2, m_createAe(PX_APP_ID, omit, "S"));
+					
+					vc_cse1.start(f_cse_announcementProcedure_createHandler());
+					f_aeSimu_checkComponentDoneAndGetVerdict(vc_cse1);
+					
+					v_updateAeAnnc.primitiveContent.aEAnnc.link := "INACTIVE";
+					vc_cse1.start(f_cse_announcementProcedure_updateHandler(v_updateAeAnnc));
+					
+					v_request := valueof(m_delete(f_getResourceAddress(v_aeIndex), f_getOriginator(v_aeIndex)));
+					mcaPort.send(f_getMsgOutPrimitive(m_request(v_request)));
+					
+					//Test Body
+					f_aeSimu_checkComponentDoneAndGetVerdict(vc_cse1);
+
+					tc_ac.start;
+					alt {
+						[] mcaPort.receive(mw_response(mw_responsePrimitive(int2004))) -> value v_response {
+							tc_ac.stop;
+							setverdict(pass, __SCOPE__ & ": AE resource deleted successfully.");
+						}
+						[] mcaPortIn.receive(mw_response(mw_responsePrimitive(?))) -> value v_response {
+							tc_ac.stop;
+							setverdict(fail, __SCOPE__ & ": Error while deleting AE resource");
+						}
+						[] tc_ac.timeout {
+							setverdict(fail, __SCOPE__ & ": No answer while deleting AE resource");
+						}
+					}	
+					
+					//Check to see if the resource is present or not
+					if (not(f_cse_isResourcePresent(v_aeIndex))) {
+						setverdict(pass, __SCOPE__ & ":INFO: Resource deleted");
+				  	} else {
+						setverdict(fail, __SCOPE__ & ":ERROR: Resource not deleted");
+					}
+									
+					// Postamble
+					f_cse_postamble_deleteResources();
+					
+					// Tear down
+					f_cf02Down();
+						
+				}; //end TC_CSE_REG_DEL_007
+
 			}// end group Delete
 	  	  	
 		}//end Registration