diff --git a/33128/r18/TS33128Payloads.asn b/33128/r18/TS33128Payloads.asn
index 60f6ecaccad4b7bf179bf54ba423b6f4a7fa84ca..5602141d340d1a8d48f237fcc6494891d75a4ddf 100644
--- a/33128/r18/TS33128Payloads.asn
+++ b/33128/r18/TS33128Payloads.asn
@@ -1288,7 +1288,9 @@ UAStarParams ::= CHOICE
 {
     tls12                 [1] TLS12UAStarParams,
     generic               [2] GenericUAStarParams,
-    tls13                 [3] TLS13UAStarParams
+    tls13                 [3] TLS13UAStarParams,
+    dtls12                [4] DTLS12UAStarParams,
+    dtls13                [5] DTLS13UAStarParams
 }
 
 GenericUAStarParams ::= SEQUENCE
@@ -1344,6 +1346,22 @@ TLS12UAStarParams ::= SEQUENCE
     tLSClientExtensions   [19] OCTET STRING (SIZE(0..65535)) OPTIONAL
 }
 
+-- ==================================================
+-- Specific UaStarParams for DTLS 1.2 (RFC6347)
+-- Inline references below are to clauses of RFC6347.
+-- ==================================================
+
+DTLS12UAStarParams ::= SEQUENCE
+{
+    tLS12CommonParams [1] TLS12UAStarParams,
+    -- RFC 6347 [X_DTLS12] clause 4.1
+    clientEpoch       [2] INTEGER,
+    -- RFC 6347 [X_DTLS12] clause 4.1
+    serverEpoch       [3] INTEGER,
+    -- RFC 9146 [X_CONNID]
+    connectionID      [4] OCTET STRING (SIZE(0..255)) OPTIONAL
+}
+
 -- ==================================================
 -- Specific UaStarParams for TLS 1.3 (RFC8446)
 -- Inline references below are to clauses of RFC8446.
@@ -1600,6 +1618,27 @@ TLS13UAStarParams ::= SEQUENCE
     tLSResumptionTickets            [31] SEQUENCE OF TLS13NewSessionTicket OPTIONAL
 }
 
+-- =====================================================
+-- Specific UaStarParams for DTLS 1.3 (RFC9147)
+-- Inline references below are to clauses of RFC9147.
+-- The client/server SnKey can alternatively be
+-- derived from information carried in tLS13CommonParams
+-- =====================================================
+
+DTLS13UAStarParams ::= SEQUENCE
+{
+    tLS13CommonParams [1] TLS13UAStarParams,
+    -- RFC9147 [X_DTLS13] clause 4.2
+    clientEpoch       [2] INTEGER,
+    -- RFC9147 [X_DTLS13] clause 4.2
+    serverEpoch       [3] INTEGER,
+    -- RFC9147 [X_DTLS13] clause 4.2.3
+    clientSnKey       [4] OCTET STRING (SIZE(1..65535)) OPTIONAL,
+    -- RFC9147 [X_DTLS13] clause 4.2.3
+    serverSnKey       [5] OCTET STRING (SIZE(1..65535)) OPTIONAL,
+    -- RFC9146 [X_CONNID]
+    connectionID      [6] OCTET STRING (SIZE(0..255)) OPTIONAL
+}
 
 KAF ::= OCTET STRING