diff --git a/33128/r17/TS33128Payloads.asn b/33128/r17/TS33128Payloads.asn
index 76fa560d0ec128363e923b76e51a48693d69c4d5..4a6caed427f237699b8c22cbc27bdc47f96b7c05 100644
--- a/33128/r17/TS33128Payloads.asn
+++ b/33128/r17/TS33128Payloads.asn
@@ -3104,6 +3104,8 @@ E164Number ::= NumericString (SIZE(1..15))
 
 EmailAddress ::= UTF8String
 
+EUI64 ::= OCTET STRING (SIZE(8))
+
 FiveGGUTI ::= SEQUENCE
 {
     mCC         [1] MCC,
@@ -3265,7 +3267,9 @@ PDUSessionType ::= ENUMERATED
 PEI ::= CHOICE
 {
     iMEI        [1] IMEI,
-    iMEISV      [2] IMEISV
+    iMEISV      [2] IMEISV,
+    mACAddress  [3] MACAddress,
+    eUI64       [4] EUI64
 }
 
 PortNumber ::= INTEGER(0..65535)