diff --git a/COMMON/src/MobileDomainDefinitions.asn b/COMMON/src/MobileDomainDefinitions.asn
new file mode 100644
index 0000000..0685484
--- /dev/null
+++ b/COMMON/src/MobileDomainDefinitions.asn
@@ -0,0 +1,54 @@
+-- *******************************************************************************
+-- * Copyright (c) 2004, 2014  Ericsson AB
+-- * All rights reserved. This program and the accompanying materials
+-- * are made available under the terms of the Eclipse Public License v1.0
+-- * which accompanies this distribution, and is available at
+-- * http://www.eclipse.org/legal/epl-v10.html
+-- *
+-- * Contributors:
+-- *   Zoltan Jasz - initial implementation and initial documentation
+-- *   Abhishek Gupta
+-- *   Attila Balasko
+-- *   Endre Kulcsar
+-- *   Gabor Bettesch
+-- *   Gabor Szalai
+-- *   Janos Kovesdi
+-- *   Sandor Palugyai
+-- *   Tibor Csondes
+-- *******************************************************************************
+-- 
+--   File:               MobileDomainDefinitions.asn
+--   Rev:                R9A
+--   Prodnr:             CNL 113 368
+--   Reference:          
+
+MobileDomainDefinitions {ccitt (0) identified-organization (4) etsi (0)
+			 mobileDomain (0) mobileDomainDefinitions (0) version1 (1)}
+
+DEFINITIONS ::=
+BEGIN
+
+IMPORTS ;
+
+-- Mobile DomainId
+
+mobileDomainId OBJECT IDENTIFIER ::= {ccitt (0) identified-organization (4) etsi (0) mobileDomain (0)}
+
+-- Mobile Subdomains
+
+gsm-NetworkId OBJECT IDENTIFIER ::= 			{mobileDomainId gsm-Network (1)}
+gsm-AccessId OBJECT IDENTIFIER ::= 			{mobileDomainId gsm-Access (2)}
+gsm-OperationAndMaintenanceId OBJECT IDENTIFIER ::= 	{mobileDomainId gsm-Operation-Maintenance (3)}
+gsm-MessagingId OBJECT IDENTIFIER ::= 			{mobileDomainId gsm-Messaging (4)}
+
+-- Common Component Ids for structuring Mobile Subdomains
+
+CommonComponentId ::= INTEGER (0..9)
+
+ac-Id CommonComponentId ::= 0
+as-Id CommonComponentId ::= 1
+ase-Id CommonComponentId ::= 2
+moduleId CommonComponentId ::= 3
+er-Id CommonComponentId ::= 4
+
+END -- MobileDomainDefinitions