diff --git a/33128/r16/TS33128Payloads.asn b/33128/r16/TS33128Payloads.asn
index 5c540076f00418511e59ecdf20f4afa8db8e9e9f..e907797354c95e825d10fac4374b05e2c77ad7cb 100644
--- a/33128/r16/TS33128Payloads.asn
+++ b/33128/r16/TS33128Payloads.asn
@@ -2072,6 +2072,8 @@ E164Number ::= NumericString (SIZE(1..15))
 
 EmailAddress ::= UTF8String
 
+EUI64 ::= OCTET STRING (SIZE(8))
+
 FiveGGUTI ::= SEQUENCE
 {
     mCC         [1] MCC,
@@ -2212,7 +2214,9 @@ PDUSessionType ::= ENUMERATED
 PEI ::= CHOICE
 {
     iMEI        [1] IMEI,
-    iMEISV      [2] IMEISV
+    iMEISV      [2] IMEISV,
+    mACAddress  [3] MACAddress,
+    eUI64       [4] EUI64
 }
 
 PortNumber ::= INTEGER(0..65535)
@@ -2943,4 +2947,4 @@ OGCURN ::= UTF8String
 -- TS 29.572 [24], clause 6.1.6.2.15
 MethodCode ::= INTEGER (16..31)
 
-END
\ No newline at end of file
+END