diff --git a/33128/r17/TS33128Payloads.asn b/33128/r17/TS33128Payloads.asn
index c1f85dc007f5e826a2abfeb43b91a854cfd1282a..4009fec055cb549141ea6249ce56b7ca9a7dd5a6 100644
--- a/33128/r17/TS33128Payloads.asn
+++ b/33128/r17/TS33128Payloads.asn
@@ -190,7 +190,12 @@ XIRIEvent ::= CHOICE
     positioningInfoTransfer                             [111] AMFPositioningInfoTransfer,
 
     -- MME Events, see clause 6.3.2.2.8
-    mMEPositioningInfoTransfer                          [112] MMEPositioningInfoTransfer
+    mMEPositioningInfoTransfer                          [112] MMEPositioningInfoTransfer,
+
+    -- Tags 113 to 123 are not used in this version of the specification
+
+    -- AMF events, see 6.2.2.2.Cl1, continued from tag 111
+    aMFUEConfigurationUpdate                            [4581] AMFUEConfigurationUpdate
 }
 
 -- ==============
@@ -373,7 +378,12 @@ IRIEvent ::= CHOICE
     positioningInfoTransfer                             [111] AMFPositioningInfoTransfer,
 
     -- MME Events, see clause 6.3.2.2.8
-    mMEPositioningInfoTransfer                          [112] MMEPositioningInfoTransfer
+    mMEPositioningInfoTransfer                          [112] MMEPositioningInfoTransfer,
+
+    -- Tags 113 to 123 are not used in this version of the specification
+
+    -- AMF events, see 6.2.2.3, continued from tag 111
+    aMFUEConfigurationUpdate                            [4581] AMFUEConfigurationUpdate
 }
 
 IRITargetIdentifier ::= SEQUENCE
@@ -1238,6 +1248,19 @@ AMFPositioningInfoTransfer ::= SEQUENCE
     lcsCorrelationId            [8] UTF8String (SIZE(1..255))
 }
 
+--See clause 6.2.2.2.Cl1 on for details of this structure
+AMFUEConfigurationUpdate ::= SEQUENCE
+{
+    userIdentifiers     [1] UserIdentifiers,
+    gUTI                [2] GUTI,
+    oldGUTI             [3] EPS5GGUTI OPTIONAL,
+    fiveGSTAIList       [4] TAIList OPTIONAL,
+    slice               [5] Slice OPTIONAL,
+    serviceAreaList     [6] ServiceAreaList OPTIONAL,
+    registrationResult  [7] AMFRegistrationResult OPTIONAL,
+    sMSOverNASIndicator [8] SMSOverNASIndicator OPTIONAL
+}
+
 -- =================
 -- 5G AMF parameters
 -- =================
@@ -1292,6 +1315,9 @@ AMFRegistrationType ::= ENUMERATED
 
 AMFSetID ::= INTEGER (0..1023)
 
+-- TS 24.501 [13], clause 9.11.3.49
+ServiceAreaList ::= OCTET STRING (SIZE(4..112))
+
 -- ==================
 -- 5G SMF definitions
 -- ==================
@@ -4076,6 +4102,19 @@ FiveGGUTI ::= SEQUENCE
     fiveGTMSI   [6] FiveGTMSI
 }
 
+FiveGSSubscriberID ::= CHOICE
+{
+    sUPI [1] SUPI,
+    sUCI [2] SUCI,
+    pEI  [3] PEI,
+    gPSI [4] GPSI
+}
+
+FiveGSSubscriberIDs ::= SEQUENCE
+{
+   fiveGSSubscriberID [1] SEQUENCE SIZE(1..MAX) OF FiveGSSubscriberID
+}
+
 FiveGMMCause ::= INTEGER (0..255)
 
 FiveGSMRequestType ::= ENUMERATED
@@ -4438,6 +4477,12 @@ UEEndpointAddress ::= CHOICE
     ethernetAddress     [3] MACAddress
 }
 
+UserIdentifiers ::= SEQUENCE
+{
+    fiveGSSubscriberIDs [1] FiveGSSubscriberIDs OPTIONAL,
+    ePSSubscriberIDs    [2] EPSSubscriberIDs OPTIONAL
+}
+
 -- ===================
 -- Location parameters
 -- ===================