diff --git a/specification/stage-3/06_Connection_Control/06.01 Connection Setup.md b/specification/stage-3/06_Connection_Control/06.01 Connection Setup.md
index 6aa1fa29299a4be59ce7ca3e4da0230136bed82c..2765d1555e4154392b31bdef7593416852edde26 100644
--- a/specification/stage-3/06_Connection_Control/06.01 Connection Setup.md	
+++ b/specification/stage-3/06_Connection_Control/06.01 Connection Setup.md	
@@ -30,8 +30,20 @@ Upon initiation of the procedure, the UE shall:
 
   - if the access attempt is barred, the procedure ends;
 
-- apply the Uu configuration according to [SIB1](../05%20Idle%20and%20Inactive%20Mode/asn1/Uu-6G-SystemInformation.asn) or, for parameters not configured therein, the default configuration according to the respective clauses of the specification,
+- apply the Uu configuration according to [SIB1](../05%20Idle%20and%20Inactive%20Mode/asn1/Uu-6G-SystemInformation.asn) or, for parameters not configured therein, the default configuration according to the respective clauses of the specification;
 
-- start timer T300,
+- start timer T300;
 
-- prepare and transmit the [ConnectionSetupRequest](./asn1/Uu-6G-ConnectionControl.asn) message in accordance with the its ASN.1 definition.
+- prepare and transmit the [*ConnectionSetupRequest*](./asn1/Uu-6G-ConnectionControl.asn) message in accordance with its ASN.1 definition.
+
+#### 6.1.1.3 Reception of the ConnectionSetup by the UE
+
+*Editor's Note: The content of this clause is FFS.*
+
+#### 6.1.1.4 Reception of the ConnectionFailure by the UE
+
+Upon reception of the [*ConnectionFailure*](../06_Connection_Control/asn1/Uu-6G-ConnectionControl.asn) message, the UE shall:
+
+- stop timer T300;
+- reset MAC;
+- continue operation in RRC_IDLE, upon which the procedure ends.
\ No newline at end of file
diff --git a/specification/stage-3/06_Connection_Control/asn1/Uu-6G-ConnectionControl.asn b/specification/stage-3/06_Connection_Control/asn1/Uu-6G-ConnectionControl.asn
index 78c122b36c24e00503dfabd2725d103eb062252f..909cfb58ca476fe57ce0d8584cfc87aec54e04e1 100644
--- a/specification/stage-3/06_Connection_Control/asn1/Uu-6G-ConnectionControl.asn
+++ b/specification/stage-3/06_Connection_Control/asn1/Uu-6G-ConnectionControl.asn
@@ -24,4 +24,11 @@ InitialUE-Identity ::= CHOICE {
 EstablishmentCause ::= ENUMERATED {
     emergency, highPriorityAccess, mt-Access, mo-Signalling, mo-Data, mo-VoiceCall, mo-VideoCall, mo-SMS, mps-PriorityAccess, mcs-PriorityAccess, spare6, spare5, spare4, spare3, spare2, spare1}
 
+
+ConnectionFailure ::= SEQUENCE {
+    failureReason ENUMERATED {congestion, spare7, spare6, spare5, spare4, spare3, spare2, spare1 },
+    nonCriticalExtensions SEQUENCE { } OPTIONAL
+}
+
+
 END
\ No newline at end of file