diff --git a/33128/r19/TS33128Payloads.asn b/33128/r19/TS33128Payloads.asn
index 647a36dadbdfb601f85cf673d697c65f2e15d6c4..afc67c18e502d30a8c5cece0d23790d35a408b5c 100644
--- a/33128/r19/TS33128Payloads.asn
+++ b/33128/r19/TS33128Payloads.asn
@@ -278,7 +278,10 @@ XIRIEvent ::= CHOICE
     uDMProSeTargetAuthentication                        [160] UDMProSeTargetAuthentication,
 
     -- IP Packet Report, see clause 6.2.3.9.5
-    iPIRIPacketReport                                   [161] IPAccessPDU.IPIRIPacketReport
+    iPIRIPacketReport                                   [161] IPAccessPDU.IPIRIPacketReport,
+
+    -- AMF events, see clause 6.2.2.2.12, continued from tag 147
+    aMFUEContextUpdate                                  [162] AMFUEContextUpdate
 }
 
 -- ==============
@@ -538,9 +541,12 @@ IRIEvent ::= CHOICE
 
     -- UDM events, see clause 7.2.2.3, continued from tag 124
     uDMProSeTargetIdentifierDeconcealment               [159] UDMProSeTargetIdentifierDeconcealment,
-    uDMProSeTargetAuthentication                        [160] UDMProSeTargetAuthentication
+    uDMProSeTargetAuthentication                        [160] UDMProSeTargetAuthentication,
 
     -- Tag 161 is reserved because there is no equivalent IP Packet Report in IRIEvent.
+
+    -- AMF events, see 6.2.2.3, continued from tag 147
+    aMFUEContextUpdate                                  [162] AMFUEContextUpdate
 }
 
 IRITargetIdentifier ::= SEQUENCE
@@ -1572,7 +1578,7 @@ AMFUEPolicyTransfer ::= SEQUENCE
     uEPolicy                        [6] UEPolicy
 }
 
--- See clause 6.2.2.2.12 for details of this structure
+-- See clause 6.2.2.2.13 for details of this structure
 AMFUEServiceAccept ::= SEQUENCE
 {
     userIdentifiers                [1] UserIdentifiers,
@@ -1588,6 +1594,15 @@ AMFUEServiceAccept ::= SEQUENCE
     uERequestType                  [10] MUSIMUERequestType OPTIONAL
 }
 
+-- See clause 6.2.2.2.14 for details of this structure
+AMFUEContextUpdate ::= SEQUENCE
+{
+    userIdentifiers          [1] UserIdentifiers,
+    rANUEContextModification [2] RANUEContextModification OPTIONAL,
+    rANDownlinkNASTransport  [3] RANDownlinkNASTransport OPTIONAL
+}
+
+
 -- =================
 -- 5G AMF parameters
 -- =================
@@ -1917,6 +1932,59 @@ FiveGSUpdateType ::= OCTET STRING (SIZE(1))
 
 UnavailabilityPeriodDuration ::= OCTET STRING (SIZE(1))
 
+RANUEContextModification ::= SEQUENCE
+{
+    aMFUENGAPID                          [1] AMFUENGAPID
+    rANUENGAPID                          [2] RANUENGAPID,
+    rATFrequencySelectionPriority        [3] RATFrequencySelectionPriority OPTIONAL,
+    newAMFUENGAPID                       [4] AMFUENGAPID OPTIONAL,
+    newGUAMI                             [5] GUAMI OPTIONAL,
+    iABAuthorizedIndicator               [6] IABAuthorizedIndicator OPTIONAL,
+    nRV2XServicesAuthorization           [7] NRV2XServicesAuthorization OPTIONAL,
+    lTEV2XServiceAuthorization           [8] LTEV2XServiceAuthorization OPTIONAL,
+    rGLevelWirelineAccessCharacteristics [9] OCTET STRING OPTIONAL,
+    uERadioCapabilityID                  [10] OCTET STRING OPTIONAL,
+    fiveGProSeAuthorizationIndication    [11] FiveGProSeAuthorizationIndication OPTIONAL,
+    mobileIABAuthorizedIndicator         [12] MobileIABAuthorizedIndicator OPTIONAL
+}
+
+RANDownlinkNASTransport ::= SEQUENCE
+{
+    aMFUENGAPID                   [1] AMFUENGAPID,
+    rANUENGAPID                   [2] RANUENGAPID,
+    oldAMF                        [3] GUAMI OPTIONAL,
+    allowedNSSAI                  [4] AllowedNSSAI OPTIONAL,
+    mobilityRestrictionList       [5] MobilityRestrictionList OPTIONAL,
+    rATFrequencySelectionPriority [6] RATFrequencySelectionPriority OPTIONAL,
+    uEDifferentiationInfo         [7] UEDifferentiationInfo OPTIONAL,
+    uERadioCapability             [8] UERadioCapability OPTIONAL,
+    uERadioCapabilityID           [9] OCTET STRING OPTIONAL,
+    targetNSSAIInfo               [10] TargetNSSAIInfo OPTIONAL,
+    mobileIABAuthorizedIndicator  [11] MobileIABAuthorizedIndicator OPTIONAL
+}
+
+UECommunicationInfo ::= SEQUENCE
+{
+    periodicCommunicationIndicator [1] PeriodicCommunicationIndicator OPTIONAL,
+    periodicTime                   [2] INTEGER OPTIONAL,
+    scheduledCommunicationTime     [3] SBIType OPTIONAL,
+    stationaryIndication           [4] SBIType OPTIONAL,
+    trafficProfile                 [5] SBIType OPTIONAL,
+    batteryIndication              [6] SBIType OPTIONAL
+}
+
+PeriodicCommunicationIndicator ::= ENUMERATED
+{
+    periodically(1),
+    ondemand(2)
+}
+
+MobileIABAuthorizedIndicator ::= ENUMERATED
+{
+    authorized(1),
+    notAuthorized(2)
+}
+
 -- ==================
 -- 5G SMF definitions
 -- ==================