--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lte/model/epc-x2-header.h	Thu Jun 28 13:40:41 2012 +0200
@@ -0,0 +1,123 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2012 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Manuel Requena <manuel.requena@cttc.es>
+ */
+
+#ifndef EPC_X2_HEADER_H
+#define EPC_X2_HEADER_H
+
+#include "ns3/header.h"
+
+namespace ns3 {
+
+class EpcX2Header : public Header
+{
+public:
+  EpcX2Header ();
+  virtual ~EpcX2Header ();
+
+  static TypeId GetTypeId (void);
+  virtual TypeId GetInstanceTypeId (void) const;
+  virtual uint32_t GetSerializedSize (void) const;
+  virtual void Serialize (Buffer::Iterator start) const;
+  virtual uint32_t Deserialize (Buffer::Iterator start);
+  virtual void Print (std::ostream &os) const;
+
+
+  uint8_t GetMessageType () const;
+  void SetMessageType (uint8_t messageType);
+
+  uint8_t GetProcedureCode () const;
+  void SetProcedureCode (uint8_t procedureCode);
+
+
+  enum ProcedureCode_t {
+    HANDOVER_PREPARATION_TYPE   = 0
+  };
+
+  enum TypeOfMessage_t {
+    INITIATING_MESSAGE      = 0,
+    SUCCESSFUL_OUTCOME      = 1,
+    UNSUCCESSFUL_OUTCOME    = 2
+  };
+
+private:
+  uint8_t m_messageType;
+  uint8_t m_procedureCode;
+};
+
+
+class EpcX2HandoverRequestHeader : public Header
+{
+public:
+  EpcX2HandoverRequestHeader ();
+  virtual ~EpcX2HandoverRequestHeader ();
+  
+  static TypeId GetTypeId (void);
+  virtual TypeId GetInstanceTypeId (void) const;
+  virtual uint32_t GetSerializedSize (void) const;
+  virtual void Serialize (Buffer::Iterator start) const;
+  virtual uint32_t Deserialize (Buffer::Iterator start);
+  virtual void Print (std::ostream &os) const;
+  
+  
+  uint16_t GetCause () const;
+  void SetCause (uint16_t cause);
+
+  uint16_t GetTargetCellId () const;
+  void SetTargetCellId (uint16_t targetCellId);
+
+private:
+  uint16_t          m_oldEnbUeX2apId; // TODO MRE When and why this is used? 
+  uint16_t          m_cause;
+  uint16_t          m_targetCellId;
+  std::list<uint16_t>   m_erabsList;
+};
+
+
+class EpcX2HandoverRequestAckHeader : public Header
+{
+public:
+  EpcX2HandoverRequestAckHeader ();
+  virtual ~EpcX2HandoverRequestAckHeader ();
+  
+  static TypeId GetTypeId (void);
+  virtual TypeId GetInstanceTypeId (void) const;
+  virtual uint32_t GetSerializedSize (void) const;
+  virtual void Serialize (Buffer::Iterator start) const;
+  virtual uint32_t Deserialize (Buffer::Iterator start);
+  virtual void Print (std::ostream &os) const;
+  
+  
+  uint16_t GetCause () const;
+  void SetCause (uint16_t cause);
+
+  uint16_t GetTargetCellId () const;
+  void SetTargetCellId (uint16_t targetCellId);
+
+private:
+  uint16_t          m_oldEnbUeX2apId; // TODO MRE When and why this is used? 
+  uint16_t          m_cause;
+  uint16_t          m_targetCellId;
+  std::list<uint16_t>   m_erabsList;
+};
+
+
+} // namespace ns3
+
+#endif // EPC_X2_HEADER_H