diff --git a/lib/include/srslte/upper/pdcp_interface.h b/lib/include/srslte/upper/pdcp_interface.h
new file mode 100644
index 000000000..d978651cf
--- /dev/null
+++ b/lib/include/srslte/upper/pdcp_interface.h
@@ -0,0 +1,72 @@
+/**
+ *
+ * \section COPYRIGHT
+ *
+ * Copyright 2013-2015 Software Radio Systems Limited
+ *
+ * \section LICENSE
+ *
+ * This file is part of the srsUE library.
+ *
+ * srsUE is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsUE 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 Affero General Public License for more details.
+ *
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
+ *
+ */
+
+#ifndef SRSLTE_PDCP_INTERFACE_H
+#define SRSLTE_PDCP_INTERFACE_H
+
+#include "srslte/common/buffer_pool.h"
+#include "srslte/common/log.h"
+#include "srslte/common/common.h"
+#include "srslte/interfaces/ue_interfaces.h"
+#include "srslte/common/security.h"
+#include "srslte/common/threads.h"
+
+
+namespace srslte {
+
+/****************************************************************************
+ * Virtual PDCP interface common for all PDCP entities
+ ***************************************************************************/
+class pdcp_entity_interface
+{
+public:
+  virtual void init(srsue::rlc_interface_pdcp     *rlc_,
+                    srsue::rrc_interface_pdcp     *rrc_,
+                    srsue::gw_interface_pdcp      *gw_,
+                    srslte::log                   *log_,
+                    uint32_t                       lcid_,
+                    srslte_pdcp_config_t           cfg_) = 0;
+  virtual void reset() = 0;
+  virtual void reestablish() = 0;
+  virtual bool is_active() = 0;
+
+  // RRC interface
+  virtual void write_sdu(byte_buffer_t *sdu) = 0;
+  virtual void config_security(uint8_t *k_enc_,
+                       uint8_t *k_int_,
+                       CIPHERING_ALGORITHM_ID_ENUM cipher_algo_,
+                       INTEGRITY_ALGORITHM_ID_ENUM integ_algo_) = 0;
+  virtual void enable_integrity() = 0;
+  virtual void enable_encryption() = 0;
+
+  // RLC interface
+  void write_pdu(byte_buffer_t *pdu);
+};
+
+} // namespace srslte
+
+
+#endif // SRSLTE_PDCP_INTERFACE_H