diff --git a/library/L3_Templates.ttcn b/library/L3_Templates.ttcn
index a05aba2..52d4a2a 100644
--- a/library/L3_Templates.ttcn
+++ b/library/L3_Templates.ttcn
@@ -1268,6 +1268,29 @@
 	}
 }
 
+template PDU_ML3_NW_MS tr_ML3_MT_MM_AUTH_REQ_3G(template OCT16 rand := ?, template OCT16 autn) := {
+	discriminator := '0101'B,
+	tiOrSkip := {
+		skipIndicator := '0000'B
+	},
+	msgs := {
+		mm := {
+			authenticationRequest := {
+				messageType := '010010'B,
+				nsd := '00'B,
+				cipheringKeySequenceNumber := ?,
+				spare2_4 := ?,
+				authenticationParRAND := rand,
+				authenticationParAUTN := {
+					elementIdentifier := '20'O,
+					lengthIndicator := ?,
+					autnValue := autn
+				}
+			}
+		}
+	}
+}
+
 template (value) PDU_ML3_MS_NW ts_ML3_MT_MM_AUTH_RESP_2G(OCT4 sres) := {
 	discriminator := '0101'B,
 	tiOrSkip := {