diff --git a/33128/r17/TS33128Payloads.asn b/33128/r17/TS33128Payloads.asn
index 952d65126dd6dbd476cf5371bd20697058a0cb00..bc831fa7f579034bf0a80034cd743500096184dd 100644
--- a/33128/r17/TS33128Payloads.asn
+++ b/33128/r17/TS33128Payloads.asn
@@ -177,7 +177,12 @@ XIRIEvent ::= CHOICE
     sTIRSHAKENSignatureValidation                       [104] STIRSHAKENSignatureValidation,
     -- IMS events, see clause 7.11.4.2
     iMSMessage                                          [105] IMSMessage,
-    startOfInterceptionForActiveIMSSession              [106] StartOfInterceptionForActiveIMSSession
+    startOfInterceptionForActiveIMSSession              [106] StartOfInterceptionForActiveIMSSession,
+
+    -- UDM events, see clause 7.2.2
+    uDMLocationInformationResult                        [904] UDMLocationInformationResult,
+    uDMUEInformationResponse                            [905] UDMUEInformationResponse,
+    uDMUEAuthenticationResponse                         [906] UDMUEAuthenticationResponse
 }
 
 -- ==============
@@ -348,8 +353,12 @@ IRIEvent ::= CHOICE
 
     -- IMS events, see clause 7.11.4.2
     iMSMessage                                          [105] IMSMessage,
-    startOfInterceptionForActiveIMSSession              [106] StartOfInterceptionForActiveIMSSession
+    startOfInterceptionForActiveIMSSession              [106] StartOfInterceptionForActiveIMSSession,
 
+    -- UDM events, see clause 7.2.2
+    uDMLocationInformationResultRecord                  [904] UDMLocationInformationResult,
+    uDMUEInformationResponse                            [905] UDMUEInformationResponse,
+    uDMUEAuthenticationResponse                         [906] UDMUEAuthenticationResponse
 }
 
 IRITargetIdentifier ::= SEQUENCE
@@ -1656,6 +1665,38 @@ UDMCancelLocationMessage ::= SEQUENCE
     cancelLocationMethod        [6] UDMCancelLocationMethod
 }
 
+UDMLocationInformationResult ::= SEQUENCE
+{
+    sUPI                     [1] SUPI,
+    pEI                      [2] PEI OPTIONAL,
+    gPSI                     [3] GPSI OPTIONAL,
+    locationInfoRequest      [4] UDMLocationInfoRequest,
+    vPLMNID                  [5] PLMNID OPTIONAL,
+    currentLocationIndicator [6] BOOLEAN OPTIONAL,
+    aMFInstanceID            [7] NFID OPTIONAL,
+    sMSFInstanceID           [8] NFID OPTIONAL,
+    location                 [9] Location OPTIONAL,
+    rATType                  [10] RATType OPTIONAL,
+    problemDetails           [11] UDMProblemDetails OPTIONAL 
+}
+
+UDMUEInformationResponse ::= SEQUENCE
+{
+    sUPI                        [1] SUPI,
+    tADSInfo                    [2] UEContextInfo OPTIONAL,
+    fiveGSUserStateInfo         [3] FiveGSUserStateInfo OPTIONAL,
+    fiveGSRVCCInfo              [4] FiveGSRVCCInfo OPTIONAL,
+    problemDetails              [5] UDMProblemDetails OPTIONAL
+}
+
+UDMUEAuthenticationResponse ::= SEQUENCE
+{
+    sUPI                        [1] SUPI,
+    authenticationInfoRequest   [2] UDMAuthenticationInfoRequest,
+    aKMAIndicator               [3] BOOLEAN OPTIONAL,
+    problemDetails              [4] UDMProblemDetails OPTIONAL
+}
+
 -- =================
 -- 5G UDM parameters
 -- =================
@@ -1693,6 +1734,70 @@ ServiceID ::= SEQUENCE
 
 CAGID ::= UTF8String
 
+UDMAuthenticationInfoRequest ::= SEQUENCE
+{
+    infoRequestType    [1] UDMInfoRequestType,
+    rGAuthCtx          [2] SEQUENCE SIZE(1..MAX) OF SubscriberIdentifier, 
+    authType           [3] PrimaryAuthenticationType,
+    servingNetworkName [4] PLMNID,
+    aUSFInstanceID     [5] NFID OPTIONAL,
+    cellCAGInfo        [6] CAGID OPTIONAL, 
+    n5GCIndicator      [7] BOOLEAN OPTIONAL
+}
+
+UDMLocationInfoRequest ::= SEQUENCE
+{
+    requested5GSLocation     [1] BOOLEAN OPTIONAL,
+    requestedCurrentLocation [2] BOOLEAN OPTIONAL,
+    requestedRATType         [3] BOOLEAN OPTIONAL,
+    requestedTimeZone        [4] BOOLEAN OPTIONAL,
+    requestedServingNode     [5] BOOLEAN OPTIONAL
+}
+
+UDMProblemDetails ::= SEQUENCE
+{
+    cause        [1] UDMProblemDetailsCause OPTIONAL
+}
+
+UDMProblemDetailsCause ::= CHOICE
+{
+    uDMDefinedCause       [1] UDMDefinedCause, 
+    otherCause            [2] UDMProblemDetailsOtherCause
+}
+
+UDMDefinedCause ::= ENUMERATED
+{
+    userNotFound(1),
+    dataNotFound(2),
+    contextNotFound(3),
+    subscriptionNotFound(4),
+    other(5)
+}
+
+UDMInfoRequestType ::= ENUMERATED
+{
+    hSS(1),
+    aUSF(2),
+    other(3)
+}
+
+UDMProblemDetailsOtherCause ::= SEQUENCE
+{
+    problemDetailsType   [1] UTF8String OPTIONAL,
+    title                [2] UTF8String OPTIONAL, 
+    status               [3] INTEGER OPTIONAL,
+    detail               [4] UTF8String OPTIONAL,
+    instance             [5] UTF8String OPTIONAL,
+    cause                [6] UTF8String OPTIONAL, 
+    uDMInvalidParameters [7] UDMInvalidParameters,
+    uDMSupportedFeatures [8] UTF8String
+}
+
+UDMInvalidParameters ::= SEQUENCE
+{
+    parameter    [1] UTF8String OPTIONAL,
+    reason       [2] UTF8String OPTIONAL
+}
 -- ===================
 -- 5G SMSF definitions
 -- ===================
@@ -3329,6 +3434,29 @@ FiveGSMCause ::= INTEGER (0..255)
 
 FiveGTMSI ::= INTEGER (0..4294967295)
 
+FiveGSRVCCInfo ::= SEQUENCE
+{
+    uE5GSRVCCCapability   [1] BOOLEAN,
+    sessionTransferNumber [2] UTF8String OPTIONAL, 
+    correlationMSISDN     [3] MSISDN OPTIONAL
+}
+
+FiveGSUserStateInfo ::= SEQUENCE
+{
+    fiveGSUserState [1] FiveGSUserState,
+    accessType      [2] AccessType
+}
+
+FiveGSUserState ::= ENUMERATED
+{
+    deregistered(1),
+    registeredNotReachableForPaging(2),
+    registeredReachableForPaging(3),
+    connectedNotReachableForPaging(4),
+    connectedReachableForPaging(5),
+    notProvidedFromAMF(6)
+}
+
 FTEID ::= SEQUENCE
 {
     tEID        [1] INTEGER (0.. 4294967295),
@@ -3470,6 +3598,19 @@ PEI ::= CHOICE
 
 PortNumber ::= INTEGER(0..65535)
 
+PrimaryAuthenticationType ::= ENUMERATED
+{
+    eAPAKAPrime(1),
+    fiveGAKA(2),
+    eAPTLS(3),
+    none(4),
+    ePSAKA(5),
+    eAPAKA(6),
+    iMSAKA(7),
+    gBAAKA(8),
+    uMTSAKA(9)
+}
+
 ProtectionSchemeID ::= INTEGER (0..15)
 
 RATType ::= ENUMERATED
@@ -3535,6 +3676,12 @@ SNSSAI ::= SEQUENCE
     sliceDifferentiator [2] OCTET STRING (SIZE(3)) OPTIONAL
 }
 
+SubscriberIdentifier ::= CHOICE
+{
+    sUCI   [1] SUCI,
+    sUPI   [2] SUPI
+}
+
 SUCI ::= SEQUENCE
 {
     mCC                         [1] MCC,
@@ -3585,6 +3732,15 @@ TELURI ::= UTF8String
 
 Timestamp ::= GeneralizedTime
 
+UEContextInfo ::= SEQUENCE
+{
+    supportVoPS         [1] BOOLEAN OPTIONAL,
+    supportVoPSNon3GPP  [2] BOOLEAN OPTIONAL,
+    lastActiveTime      [3] Timestamp OPTIONAL,
+    accessType          [4] AccessType OPTIONAL, 
+    rATType             [5] RATType OPTIONAL
+}
+
 UEEndpointAddress ::= CHOICE
 {
     iPv4Address         [1] IPv4Address,
@@ -4262,4 +4418,4 @@ OGCURN ::= UTF8String
 -- TS 29.572 [24], clause 6.1.6.2.15
 MethodCode ::= INTEGER (16..31)
 
-END
\ No newline at end of file
+END