diff --git a/common/ran_context.h b/common/ran_context.h
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+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.0  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+/*! \file PHY/impl_defs_lte.h
+* \brief LTE Physical channel configuration and variable structure definitions
+* \author R. Knopp, F. Kaltenberger
+* \date 2011
+* \version 0.1
+* \company Eurecom
+* \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr
+* \note
+* \warning
+*/
+
+#ifndef __RAN_CONTEXT_H__
+#define __RAN_CONTEXT_H__
+
+#include <pthread.h>
+#include "COMMON/platform_constants.h"
+#include "PHY/defs.h"
+#include "PHY/types.h"
+#include "PHY/impl_defs_top.h"
+#include "PHY/impl_defs_lte.h"
+#include "RRC/LITE/defs.h"
+
+#include "gtpv1u.h"
+#include "NwGtpv1u.h"
+#include "NwGtpv1uMsg.h"
+#include "NwGtpv1uPrivate.h"
+#include "gtpv1u_eNB_defs.h"
+
+typedef struct {
+  /// RAN context config file name
+  char *config_file_name;
+  /// Number of eNB instances in this node
+  int nb_inst;
+  /// Number of Component Carriers per instance in this node
+  int *nb_CC;
+  /// Number of radio units
+  int nb_RU;
+  /// eNB context variables
+  struct PHY_VARS_eNB_s ***eNB;
+  /// RRC context variables
+  struct eNB_RRC_INST_s **rrc;
+  /// RRC context variables
+  struct eNB_MAC_INST_s **mac;
+  /// GTPu descriptor 
+  gtpv1u_data_t *gtpv1u_data_g;
+  /// RU descriptors. These describe what each radio unit is supposed to do and contain the necessary functions for fronthaul interfaces
+  struct RU_t_s **ru;
+  /// Mask to indicate fronthaul setup status of RU (hard-limit to 64 RUs)
+  uint64_t ru_mask;
+  /// Mutex for protecting ru_mask
+  pthread_mutex_t ru_mutex;
+  /// condition variable for signaling setup completion of an RU
+  pthread_cond_t ru_cond;
+} RAN_CONTEXT_t;
+
+
+#endif