mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
/**
|
|
*
|
|
* \section COPYRIGHT
|
|
*
|
|
* Copyright 2013-2021 Software Radio Systems Limited
|
|
*
|
|
* By using this file, you agree to the terms and conditions set
|
|
* forth in the LICENSE file which can be found at the top level of
|
|
* the distribution.
|
|
*
|
|
*/
|
|
|
|
#include "srsran/interfaces/enb_gtpu_interfaces.h"
|
|
#include "srsran/interfaces/enb_pdcp_interfaces.h"
|
|
#include "srsran/interfaces/enb_rrc_interface_types.h"
|
|
|
|
#ifndef SRSRAN_ENB_X2_INTERFACES_H
|
|
#define SRSRAN_ENB_X2_INTERFACES_H
|
|
|
|
namespace srsenb {
|
|
|
|
/**
|
|
* @brief Set of X2AP inspired interfaces to support 5G NSA
|
|
*
|
|
*/
|
|
|
|
/// X2AP inspired interface to allow EUTRA RRC to call NR RRC
|
|
class rrc_nr_interface_rrc
|
|
{
|
|
public:
|
|
struct sgnb_addition_req_params_t {
|
|
uint32_t eps_bearer_id;
|
|
// add configuration check
|
|
// E-RAB Parameters, Tunnel address (IP address, TEID)
|
|
// QCI, security, etc
|
|
};
|
|
|
|
/// Request addition of NR carrier for UE
|
|
virtual int sgnb_addition_request(uint16_t eutra_rnti, const sgnb_addition_req_params_t& params) = 0;
|
|
|
|
/// Provide information whether the requested configuration was applied successfully by the UE
|
|
virtual int sgnb_reconfiguration_complete(uint16_t eutra_rnti, asn1::dyn_octstring reconfig_response) = 0;
|
|
};
|
|
|
|
/// X2AP inspired interface for response from NR RRC to EUTRA RRC
|
|
class rrc_eutra_interface_rrc_nr
|
|
{
|
|
public:
|
|
/**
|
|
* @brief List of parameters included in the SgNB addition Ack message
|
|
* @param nr_secondary_cell_group_cfg_r15 Encoded part of the RRC Reconfiguration
|
|
* @param nr_radio_bearer_cfg1_r15 Encoded part of the RRC Reconfiguration
|
|
* @param eps_bearer_id ID of the transfered bearer
|
|
*/
|
|
struct sgnb_addition_ack_params_t {
|
|
uint16_t nr_rnti = SRSRAN_INVALID_RNTI; // RNTI that was assigned to the UE
|
|
asn1::dyn_octstring nr_secondary_cell_group_cfg_r15;
|
|
asn1::dyn_octstring nr_radio_bearer_cfg1_r15;
|
|
uint32_t eps_bearer_id = 0; // (list of) successfully transfered EPS bearers
|
|
};
|
|
|
|
/**
|
|
* @brief Signal successful addition of UE
|
|
*
|
|
* @param eutra_rnti The RNTI that the EUTRA RRC used to request the SgNB addition
|
|
* @param params Parameter list
|
|
*/
|
|
virtual void sgnb_addition_ack(uint16_t eutra_rnti, sgnb_addition_ack_params_t params) = 0;
|
|
|
|
/**
|
|
* @brief Signal unsuccessful SgNB addition
|
|
*
|
|
* @param eutra_rnti The RNTI that the EUTRA RRC used to request the SgNB addition
|
|
*/
|
|
virtual void sgnb_addition_reject(uint16_t eutra_rnti) = 0;
|
|
|
|
/**
|
|
* @brief Signal completion of SgNB addition after UE (with new NR identity) has attached
|
|
*
|
|
* @param eutra_rnti The RNTI that the EUTRA RRC used to request the SgNB addition
|
|
* @param nr_rnti The RNTI that has been assigned to the UE on the SgNB
|
|
*/
|
|
virtual void sgnb_addition_complete(uint16_t eutra_rnti, uint16_t nr_rnti) = 0;
|
|
|
|
/**
|
|
* @brief Signal user activity (i.e. DL/UL traffic) for given RNTI
|
|
*
|
|
* @param eutra_rnti The RNTI that the EUTRA RRC uses
|
|
*/
|
|
virtual void set_activity_user(uint16_t eutra_rnti) = 0;
|
|
};
|
|
|
|
// combined interface used by X2 adapter
|
|
class x2_interface : public rrc_nr_interface_rrc,
|
|
public rrc_eutra_interface_rrc_nr,
|
|
public pdcp_interface_gtpu, // allow GTPU to access PDCP in DL direction
|
|
public gtpu_interface_pdcp // allow PDCP to access GTPU in UL direction
|
|
{
|
|
public:
|
|
virtual ~x2_interface() = default;
|
|
};
|
|
|
|
} // namespace srsenb
|
|
|
|
#endif // SRSRAN_ENB_X2_INTERFACES_H
|