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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/asn1/s1ap_utils.h"
#include "srsran/interfaces/enb_rrc_interface_types.h"
#include "srsran/interfaces/sched_interface.h"
#ifndef SRSRAN_ENB_RRC_INTERFACES_H
#define SRSRAN_ENB_RRC_INTERFACES_H
namespace srsenb {
// RRC interface for S1AP
class rrc_interface_s1ap
{
public:
virtual void write_dl_info(uint16_t rnti, srsran::unique_byte_buffer_t sdu) = 0;
virtual void release_ue(uint16_t rnti) = 0;
virtual bool setup_ue_ctxt(uint16_t rnti, const asn1::s1ap::init_context_setup_request_s& msg) = 0;
virtual bool modify_ue_ctxt(uint16_t rnti, const asn1::s1ap::ue_context_mod_request_s& msg) = 0;
virtual bool setup_ue_erabs(uint16_t rnti, const asn1::s1ap::erab_setup_request_s& msg) = 0;
virtual void
modify_erabs(uint16_t rnti,
srsran::const_span<const asn1::s1ap::erab_to_be_modified_item_bearer_mod_req_s*> erabs_to_modify) = 0;
virtual bool has_erab(uint16_t rnti, uint32_t erab_id) const = 0;
virtual bool release_erabs(uint32_t rnti) = 0;
virtual void release_erabs(uint32_t rnti,
const asn1::s1ap::erab_release_cmd_s& msg,
std::vector<uint16_t>* erabs_released,
std::vector<uint16_t>* erabs_failed_to_release) = 0;
virtual void add_paging_id(uint32_t ueid, const asn1::s1ap::ue_paging_id_c& ue_paging_id) = 0;
/**
* Reports the reception of S1 HandoverCommand / HandoverPreparationFailure or abnormal conditions during
* S1 Handover preparation back to RRC.
*
* @param rnti user
* @param is_success true if ho cmd was received
* @param container TargeteNB RRCConnectionReconfiguration message with MobilityControlInfo
*/
virtual void ho_preparation_complete(uint16_t rnti,
bool is_success,
const asn1::s1ap::ho_cmd_s& msg,
srsran::unique_byte_buffer_t container) = 0;
virtual uint16_t
start_ho_ue_resource_alloc(const asn1::s1ap::ho_request_s& msg,
const asn1::s1ap::sourceenb_to_targetenb_transparent_container_s& container) = 0;
virtual void set_erab_status(uint16_t rnti, const asn1::s1ap::bearers_subject_to_status_transfer_list_l& erabs) = 0;
};
/// RRC interface for RLC
class rrc_interface_rlc
{
public:
virtual void read_pdu_pcch(uint8_t* payload, uint32_t payload_size) = 0;
virtual void max_retx_attempted(uint16_t rnti) = 0;
virtual void write_pdu(uint16_t rnti, uint32_t lcid, srsran::unique_byte_buffer_t sdu) = 0;
};
/// RRC interface for MAC
class rrc_interface_mac
{
public:
/* Radio Link failure */
virtual int add_user(uint16_t rnti, const sched_interface::ue_cfg_t& init_ue_cfg) = 0;
virtual void upd_user(uint16_t new_rnti, uint16_t old_rnti) = 0;
virtual void set_activity_user(uint16_t rnti, bool ack_info) = 0;
virtual bool is_paging_opportunity(uint32_t tti, uint32_t* payload_len) = 0;
///< Provide packed SIB to MAC (buffer is managed by RRC)
virtual uint8_t* read_pdu_bcch_dlsch(const uint8_t enb_cc_idx, const uint32_t sib_index) = 0;
};
/// RRC interface for PDCP
class rrc_interface_pdcp
{
public:
virtual void write_pdu(uint16_t rnti, uint32_t lcid, srsran::unique_byte_buffer_t pdu) = 0;
};
} // namespace srsenb
#endif // SRSRAN_ENB_RRC_INTERFACES_H