diff --git a/33128/r18/TS33128Payloads.asn b/33128/r18/TS33128Payloads.asn
index 058c400076f161edba546025ac698b1628657688..15cd8aa8242d33dc37bd2888011b987d43d8e94b 100644
--- a/33128/r18/TS33128Payloads.asn
+++ b/33128/r18/TS33128Payloads.asn
@@ -5392,19 +5392,6 @@ ReRegRequiredIndicator ::= ENUMERATED
 
 RoutingIndicator ::= INTEGER (0..9999)
 
--- Details for the encoding and use of this parameter may be found in the clause
--- that defines the xIRI that carries it. This parameter provides a generic
--- mechanism to convey service based interface structures defined in Stage 3 working groups.
-SBIType ::= SEQUENCE
-{
-    sBIReference         [1] SBIReference,
-    sBIValue             [2] SBIValue
-}
-
-SBIReference ::= UTF8String
-
-SBIValue ::= UTF8String
-
 SchemeOutput ::= OCTET STRING
 
 ServiceAreaInformation ::= SEQUENCE (SIZE(1..MAX)) OF ServiceAreaInfo
@@ -5541,17 +5528,6 @@ UserIdentifiers ::= SEQUENCE
     ePSSubscriberIDs    [2] EPSSubscriberIDs OPTIONAL
 }
 
-XMLType ::= SEQUENCE
-{
-    xMLNamespace [1] XMLNamespace,
-    xMLValue     [2] XMLValue
-}
-
-XMLNamespace ::= UTF8String
-
-XMLValue ::= UTF8String
-
-
 -- ===================
 -- Location parameters
 -- ===================
@@ -6467,4 +6443,77 @@ SIPCellularNetworkInformation ::= SEQUENCE
     servingPLMN          [2] PLMNID OPTIONAL
 }
 
+-- ==================================================
+-- Structures to allow reuse of encapsulated payloads
+-- ==================================================
+
+
+-- ===============================================
+-- Externally Defined Structures - MSRP Parameters
+-- ===============================================
+
+EncapsulatedMSRP ::= UTF8String
+
+MSRPMessage ::= SEQUENCE
+{
+    encapsulatedMSRP [1] EncapsulatedMSRP
+}
+
+-- ==================================================
+-- Externally Defined Structures - SBIType Parameters
+-- ==================================================
+
+-- Details for the encoding and use of this parameter may be found in the clause
+-- that defines the xIRI that carries it. This parameter provides a generic
+-- mechanism to convey service based interface structures defined in Stage 3 working groups.
+
+SBIType ::= SEQUENCE
+{
+    sBIReference         [1] SBIReference,
+    sBIValue             [2] SBIValue
+}
+
+SBIReference ::= UTF8String
+
+SBIValue ::= UTF8String
+
+-- ==================================================
+-- Externally Defined Structures - XMLType Parameters
+-- ==================================================
+
+XMLType ::= SEQUENCE
+{
+    xMLNamespace [1] XMLNamespace,
+    xMLValue     [2] XMLValue
+}
+
+XMLNamespace ::= UTF8String
+
+XMLValue ::= UTF8String
+
+-- ======================================================
+-- Externally Defined Structures - MIME Entity Parameters
+-- ======================================================
+
+EncapsulatedMIMEEntity ::= UTF8String
+
+MIMEContentType ::= UTF8String
+
+MIMEEntity ::= SEQUENCE
+{
+    contentType            [1] MIMEContentType,
+    encapsulatedMIMEEntity [2] EncapsulatedMIMEEntity
+}
+
+MIMEPartIdentifier ::= CHOICE
+{
+    index     [1] INTEGER
+}
+
+MIMEBody ::= CHOICE
+{
+    fullBody [1] NULL,
+    bodyPart [2] MIMEPartIdentifier
+}
+
 END