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/**
*
* \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.
*
*/
#ifndef SRSRAN_SCHED_NR_CFG_H
#define SRSRAN_SCHED_NR_CFG_H
#include "sched_nr_interface.h"
#include "sched_nr_rb.h"
#include "srsenb/hdr/common/common_enb.h"
namespace srsenb {
const static size_t SCHED_NR_MAX_USERS = SRSENB_MAX_UES;
const static size_t SCHED_NR_NOF_SUBFRAMES = 10;
const static size_t SCHED_NR_NOF_HARQS = 16;
static const size_t MAX_NOF_AGGR_LEVELS = 5;
namespace sched_nr_impl {
constexpr static size_t MAX_GRANTS = sched_nr_interface::MAX_GRANTS;
using pdcch_dl_t = mac_interface_phy_nr::pdcch_dl_t;
using pdcch_ul_t = mac_interface_phy_nr::pdcch_ul_t;
using pdsch_t = mac_interface_phy_nr::pdsch_t;
using pusch_t = mac_interface_phy_nr::pusch_t;
using pucch_t = mac_interface_phy_nr::pucch_t;
using pdcch_dl_list_t = srsran::bounded_vector<pdcch_dl_t, MAX_GRANTS>;
using pdcch_ul_list_t = srsran::bounded_vector<pdcch_ul_t, MAX_GRANTS>;
using pucch_list_t = srsran::bounded_vector<pucch_t, MAX_GRANTS>;
using pusch_list_t = srsran::bounded_vector<pusch_t, MAX_GRANTS>;
using nzp_csi_rs_list = srsran::bounded_vector<srsran_csi_rs_nzp_resource_t, mac_interface_phy_nr::MAX_NZP_CSI_RS>;
using ssb_t = mac_interface_phy_nr::ssb_t;
using ssb_list = srsran::bounded_vector<ssb_t, mac_interface_phy_nr::MAX_SSB>;
using sched_args_t = sched_nr_interface::sched_args_t;
using cell_cfg_t = sched_nr_interface::cell_cfg_t;
using bwp_cfg_t = sched_nr_interface::bwp_cfg_t;
using ue_cfg_t = sched_nr_interface::ue_cfg_t;
using ue_cc_cfg_t = sched_nr_interface::ue_cc_cfg_t;
using pdcch_cce_pos_list = srsran::bounded_vector<uint32_t, SRSRAN_SEARCH_SPACE_MAX_NOF_CANDIDATES_NR>;
using bwp_cce_pos_list = std::array<std::array<pdcch_cce_pos_list, MAX_NOF_AGGR_LEVELS>, SRSRAN_NOF_SF_X_FRAME>;
using dl_sched_t = sched_nr_interface::dl_sched_t;
using ul_sched_t = sched_nr_interface::ul_sched_t;
using dl_sched_res_t = sched_nr_interface::dl_sched_res_t;
/// Generate list of CCE locations for UE based on coreset and search space configurations
void get_dci_locs(const srsran_coreset_t& coreset,
const srsran_search_space_t& search_space,
uint16_t rnti,
bwp_cce_pos_list& cce_locs);
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Structure that extends the sched_nr_interface::bwp_cfg_t passed by upper layers with other
/// derived BWP-specific params
struct bwp_params_t {
const uint32_t bwp_id;
const uint32_t cc;
const bwp_cfg_t& cfg;
const cell_cfg_t& cell_cfg;
const sched_args_t& sched_cfg;
// derived params
srslog::basic_logger& logger;
uint32_t P;
uint32_t N_rbg;
uint32_t nof_prb() const { return cell_cfg.carrier.nof_prb; }
/// Table specifying if a slot has DL or UL enabled
struct slot_cfg {
bool is_dl;
bool is_ul;
};
srsran::bounded_vector<slot_cfg, SRSRAN_NOF_SF_X_FRAME> slots;
struct pusch_ra_time_cfg {
uint32_t msg3_delay; ///< Includes K2 and delta. See TS 36.214 6.1.2.1.1-2/4/5
uint32_t K;
uint32_t S;
uint32_t L;
};
std::vector<pusch_ra_time_cfg> pusch_ra_list;
bwp_cce_pos_list rar_cce_list;
bwp_params_t(const cell_cfg_t& cell, const sched_args_t& sched_cfg_, uint32_t cc, uint32_t bwp_id);
};
/// Structure packing a single cell config params, and sched args
struct cell_params_t {
const uint32_t cc;
const cell_cfg_t cfg;
const sched_args_t& sched_args;
std::vector<bwp_params_t> bwps;
cell_params_t(uint32_t cc_, const cell_cfg_t& cell, const sched_args_t& sched_cfg_);
uint32_t nof_prb() const { return cfg.carrier.nof_prb; }
};
/// Structure packing both the sched args and all gNB NR cell configurations
struct sched_params {
sched_args_t sched_cfg;
std::vector<cell_params_t> cells;
sched_params() = default;
explicit sched_params(const sched_args_t& sched_cfg_);
};
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// Configuration of a UE for a given BWP
class bwp_ue_cfg
{
public:
bwp_ue_cfg() = default;
explicit bwp_ue_cfg(uint16_t rnti, const bwp_params_t& bwp_cfg, const ue_cfg_t& uecfg_);
const ue_cfg_t* ue_cfg() const { return cfg_; }
const srsran::phy_cfg_nr_t& phy() const { return cfg_->phy_cfg; }
const bwp_params_t& active_bwp() const { return *bwp_cfg; }
srsran::const_span<uint32_t> cce_pos_list(uint32_t search_id, uint32_t slot_idx, uint32_t aggr_idx) const
{
if (cce_positions_list.size() > ss_id_to_cce_idx[search_id]) {
auto& lst = cce_pos_list(search_id);
return lst[slot_idx][aggr_idx];
}
return srsran::const_span<uint32_t>{};
}
const bwp_cce_pos_list& cce_pos_list(uint32_t search_id) const
{
return cce_positions_list[ss_id_to_cce_idx[search_id]];
}
uint32_t get_k1(slot_point pdsch_slot) const
{
if (phy().duplex.mode == SRSRAN_DUPLEX_MODE_TDD) {
return phy().harq_ack.dl_data_to_ul_ack[pdsch_slot.to_uint() % phy().duplex.tdd.pattern1.period_ms];
}
return phy().harq_ack.dl_data_to_ul_ack[pdsch_slot.to_uint() % phy().harq_ack.nof_dl_data_to_ul_ack];
}
int fixed_pdsch_mcs() const { return bwp_cfg->sched_cfg.fixed_dl_mcs; }
int fixed_pusch_mcs() const { return bwp_cfg->sched_cfg.fixed_ul_mcs; }
private:
uint16_t rnti = SRSRAN_INVALID_RNTI;
const ue_cfg_t* cfg_ = nullptr;
const bwp_params_t* bwp_cfg = nullptr;
std::vector<bwp_cce_pos_list> cce_positions_list;
std::array<uint32_t, SRSRAN_UE_DL_NR_MAX_NOF_SEARCH_SPACE> ss_id_to_cce_idx;
};
class ue_cfg_extended : public ue_cfg_t
{
public:
struct search_space_params {
const srsran_search_space_t* cfg;
bwp_cce_pos_list cce_positions;
};
struct coreset_params {
srsran_coreset_t* cfg = nullptr;
std::vector<uint32_t> ss_list;
};
struct bwp_params {
std::array<srsran::optional<search_space_params>, SRSRAN_UE_DL_NR_MAX_NOF_SEARCH_SPACE> ss_list;
std::vector<coreset_params> coresets;
};
struct cc_params {
srsran::bounded_vector<bwp_params, SCHED_NR_MAX_BWP_PER_CELL> bwps;
};
ue_cfg_extended() = default;
explicit ue_cfg_extended(uint16_t rnti, const ue_cfg_t& uecfg);
const bwp_cce_pos_list& get_dci_pos_list(uint32_t cc, uint32_t bwp_id, uint32_t search_space_id) const
{
return cc_params[cc].bwps[bwp_id].ss_list[search_space_id]->cce_positions;
}
uint16_t rnti;
std::vector<cc_params> cc_params;
};
} // namespace sched_nr_impl
} // namespace srsenb
#endif // SRSRAN_SCHED_NR_CFG_H