/
gnb_appconfig_translators.cpp
1920 lines (1693 loc) · 90 KB
/
gnb_appconfig_translators.cpp
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/*
*
* Copyright 2021-2024 Software Radio Systems Limited
*
* This file is part of srsRAN.
*
* srsRAN 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.
*
* srsRAN 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/.
*
*/
#include "gnb_appconfig_translators.h"
#include "gnb_appconfig.h"
#include "srsran/cu_cp/cu_cp_configuration_helpers.h"
#include "srsran/cu_up/cu_up_configuration_helpers.h"
#include "srsran/du/du_cell_config_helpers.h"
#include "srsran/du/du_cell_config_validation.h"
#include "srsran/du/du_update_config_helpers.h"
#include "srsran/e2/e2ap_configuration.h"
#include "srsran/e2/e2ap_configuration_helpers.h"
#include "srsran/ran/prach/prach_configuration.h"
#include "srsran/ran/prach/prach_helper.h"
#include "srsran/ran/subcarrier_spacing.h"
#include "srsran/rlc/rlc_srb_config_factory.h"
#include "srsran/scheduler/config/cell_config_builder_params.h"
#include "srsran/scheduler/config/csi_helper.h"
#include "srsran/scheduler/config/scheduler_expert_config_validator.h"
#include "srsran/scheduler/config/serving_cell_config_factory.h"
#include "srsran/support/math_utils.h"
#include <algorithm>
#include <map>
using namespace srsran;
using namespace std::chrono_literals;
/// Static configuration that the gnb supports.
static constexpr cyclic_prefix cp = cyclic_prefix::NORMAL;
srs_cu_cp::rrc_ssb_mtc srsran::generate_rrc_ssb_mtc(unsigned period, unsigned offset, unsigned duration)
{
srs_cu_cp::rrc_ssb_mtc ssb_mtc;
switch (period) {
case 5:
ssb_mtc.periodicity_and_offset.sf5.emplace() = offset;
break;
case 10:
ssb_mtc.periodicity_and_offset.sf10.emplace() = offset;
break;
case 20:
ssb_mtc.periodicity_and_offset.sf20.emplace() = offset;
break;
case 40:
ssb_mtc.periodicity_and_offset.sf40.emplace() = offset;
break;
case 80:
ssb_mtc.periodicity_and_offset.sf80.emplace() = offset;
break;
case 160:
ssb_mtc.periodicity_and_offset.sf160.emplace() = offset;
break;
default:
report_error("Invalid SSB periodicity {}\n", period);
}
ssb_mtc.dur = duration;
return ssb_mtc;
}
srsran::sctp_network_gateway_config srsran::generate_ngap_nw_config(const gnb_appconfig& config)
{
srsran::sctp_network_gateway_config out_cfg;
out_cfg.connection_name = "AMF";
out_cfg.connect_address = config.amf_cfg.ip_addr;
out_cfg.connect_port = config.amf_cfg.port;
if (config.amf_cfg.n2_bind_addr == "auto") {
out_cfg.bind_address = config.amf_cfg.bind_addr;
} else {
out_cfg.bind_address = config.amf_cfg.n2_bind_addr;
}
out_cfg.bind_interface = config.amf_cfg.n2_bind_interface;
out_cfg.ppid = NGAP_PPID;
if (config.amf_cfg.sctp_rto_initial >= 0) {
out_cfg.rto_initial = config.amf_cfg.sctp_rto_initial;
}
if (config.amf_cfg.sctp_rto_min >= 0) {
out_cfg.rto_min = config.amf_cfg.sctp_rto_min;
}
if (config.amf_cfg.sctp_rto_max >= 0) {
out_cfg.rto_max = config.amf_cfg.sctp_rto_max;
}
if (config.amf_cfg.sctp_init_max_attempts >= 0) {
out_cfg.init_max_attempts = config.amf_cfg.sctp_init_max_attempts;
}
if (config.amf_cfg.sctp_max_init_timeo >= 0) {
out_cfg.max_init_timeo = config.amf_cfg.sctp_max_init_timeo;
}
out_cfg.nodelay = config.amf_cfg.sctp_nodelay;
return out_cfg;
}
srs_cu_cp::cu_cp_configuration srsran::generate_cu_cp_config(const gnb_appconfig& config)
{
const base_cell_appconfig& cell = config.cells_cfg.front().cell;
srs_cu_cp::cu_cp_configuration out_cfg = config_helpers::make_default_cu_cp_config();
out_cfg.max_nof_dus = config.cu_cp_cfg.max_nof_dus;
out_cfg.max_nof_cu_ups = config.cu_cp_cfg.max_nof_cu_ups;
out_cfg.ngap_config.gnb_id = config.gnb_id;
out_cfg.ngap_config.ran_node_name = config.ran_node_name;
out_cfg.ngap_config.plmn = cell.plmn;
out_cfg.ngap_config.tac = cell.tac;
out_cfg.ngap_config.slice_configurations = config.slice_cfg;
out_cfg.rrc_config.force_reestablishment_fallback = config.cu_cp_cfg.rrc_config.force_reestablishment_fallback;
out_cfg.rrc_config.rrc_procedure_timeout_ms = config.cu_cp_cfg.rrc_config.rrc_procedure_timeout_ms;
out_cfg.rrc_config.int_algo_pref_list = generate_preferred_integrity_algorithms_list(config);
out_cfg.rrc_config.enc_algo_pref_list = generate_preferred_ciphering_algorithms_list(config);
out_cfg.rrc_config.drb_config = generate_cu_cp_qos_config(config);
if (!from_string(out_cfg.default_security_indication.integrity_protection_ind,
config.cu_cp_cfg.security_config.integrity_protection)) {
report_error("Invalid value for integrity_protection={}\n", config.cu_cp_cfg.security_config.integrity_protection);
}
if (!from_string(out_cfg.default_security_indication.confidentiality_protection_ind,
config.cu_cp_cfg.security_config.confidentiality_protection)) {
report_error("Invalid value for confidentiality_protection={}\n",
config.cu_cp_cfg.security_config.confidentiality_protection);
}
out_cfg.ue_config.inactivity_timer = std::chrono::seconds{config.cu_cp_cfg.inactivity_timer};
out_cfg.ue_config.max_nof_supported_ues = config.cu_cp_cfg.max_nof_dus * srsran::srs_cu_cp::MAX_NOF_UES_PER_DU;
out_cfg.ngap_config.pdu_session_setup_timeout = std::chrono::seconds{config.cu_cp_cfg.pdu_session_setup_timeout};
out_cfg.statistics_report_period = std::chrono::seconds{config.metrics_cfg.cu_cp_statistics_report_period};
out_cfg.mobility_config.mobility_manager_config.trigger_handover_from_measurements =
config.cu_cp_cfg.mobility_config.trigger_handover_from_measurements;
// Convert appconfig's cell list into cell manager type.
for (const auto& app_cfg_item : config.cu_cp_cfg.mobility_config.cells) {
srs_cu_cp::cell_meas_config meas_cfg_item;
meas_cfg_item.serving_cell_cfg.nci = app_cfg_item.nr_cell_id;
meas_cfg_item.serving_cell_cfg.gnb_id = app_cfg_item.gnb_id;
meas_cfg_item.serving_cell_cfg.band = app_cfg_item.band;
meas_cfg_item.serving_cell_cfg.ssb_arfcn = app_cfg_item.ssb_arfcn;
if (app_cfg_item.ssb_scs.has_value()) {
meas_cfg_item.serving_cell_cfg.ssb_scs.emplace() =
to_subcarrier_spacing(std::to_string(app_cfg_item.ssb_scs.value()));
}
if (app_cfg_item.periodic_report_cfg_id.has_value()) {
meas_cfg_item.periodic_report_cfg_id =
srs_cu_cp::uint_to_report_cfg_id(app_cfg_item.periodic_report_cfg_id.value());
}
for (const auto& ncell : app_cfg_item.ncells) {
srs_cu_cp::neighbor_cell_meas_config ncell_meas_cfg;
ncell_meas_cfg.nci = ncell.nr_cell_id;
for (const auto& report_id : ncell.report_cfg_ids) {
ncell_meas_cfg.report_cfg_ids.push_back(srs_cu_cp::uint_to_report_cfg_id(report_id));
}
meas_cfg_item.ncells.push_back(ncell_meas_cfg);
}
if (app_cfg_item.ssb_duration.has_value() && app_cfg_item.ssb_offset.has_value() &&
app_cfg_item.ssb_period.has_value()) {
// Add MTC config.
meas_cfg_item.serving_cell_cfg.ssb_mtc.emplace() = generate_rrc_ssb_mtc(
app_cfg_item.ssb_period.value(), app_cfg_item.ssb_offset.value(), app_cfg_item.ssb_duration.value());
}
// Store config.
out_cfg.mobility_config.meas_manager_config.cells[meas_cfg_item.serving_cell_cfg.nci] = meas_cfg_item;
}
// Convert report config.
for (const auto& report_cfg_item : config.cu_cp_cfg.mobility_config.report_configs) {
srs_cu_cp::rrc_report_cfg_nr report_cfg;
if (report_cfg_item.report_type == "periodical") {
srs_cu_cp::rrc_periodical_report_cfg periodical;
periodical.rs_type = srs_cu_cp::rrc_nr_rs_type::ssb;
if (report_cfg_item.report_interval_ms.has_value()) {
periodical.report_interv = report_cfg_item.report_interval_ms.value();
} else {
periodical.report_interv = 1024;
}
periodical.report_amount = -1;
periodical.report_quant_cell.rsrp = true;
periodical.report_quant_cell.rsrq = true;
periodical.report_quant_cell.sinr = true;
periodical.max_report_cells = 4;
srs_cu_cp::rrc_meas_report_quant report_quant_rs_idxes;
report_quant_rs_idxes.rsrp = true;
report_quant_rs_idxes.rsrq = true;
report_quant_rs_idxes.sinr = true;
periodical.report_quant_rs_idxes = report_quant_rs_idxes;
periodical.max_nrof_rs_idxes_to_report = 4;
periodical.include_beam_meass = true;
periodical.use_allowed_cell_list = false;
report_cfg.periodical = periodical;
} else {
srs_cu_cp::rrc_event_trigger_cfg event_trigger_cfg;
// event id
// A3 event config is currently the only supported event.
auto& event_a3 = event_trigger_cfg.event_id.event_a3.emplace();
if (report_cfg_item.a3_report_type.empty() or !report_cfg_item.a3_offset_db.has_value() or
!report_cfg_item.a3_hysteresis_db.has_value()) {
report_error("Invalid measurement report configuration.\n");
}
if (report_cfg_item.a3_report_type == "rsrp") {
event_a3.a3_offset.rsrp = report_cfg_item.a3_offset_db.value();
} else if (report_cfg_item.a3_report_type == "rsrq") {
event_a3.a3_offset.rsrq = report_cfg_item.a3_offset_db.value();
} else if (report_cfg_item.a3_report_type == "sinr") {
event_a3.a3_offset.sinr = report_cfg_item.a3_offset_db.value();
}
event_a3.report_on_leave = false;
event_a3.hysteresis = report_cfg_item.a3_hysteresis_db.value();
event_a3.time_to_trigger = report_cfg_item.a3_time_to_trigger_ms.value();
event_a3.use_allowed_cell_list = false;
event_trigger_cfg.rs_type = srs_cu_cp::rrc_nr_rs_type::ssb;
if (report_cfg_item.report_interval_ms.has_value()) {
event_trigger_cfg.report_interv = report_cfg_item.report_interval_ms.value();
} else {
event_trigger_cfg.report_interv = 1024;
}
event_trigger_cfg.report_amount = -1;
event_trigger_cfg.report_quant_cell.rsrp = true;
event_trigger_cfg.report_quant_cell.rsrq = true;
event_trigger_cfg.report_quant_cell.sinr = true;
event_trigger_cfg.max_report_cells = 4;
srs_cu_cp::rrc_meas_report_quant report_quant_rs_idxes;
report_quant_rs_idxes.rsrp = true;
report_quant_rs_idxes.rsrq = true;
report_quant_rs_idxes.sinr = true;
event_trigger_cfg.report_quant_rs_idxes = report_quant_rs_idxes;
report_cfg.event_triggered = event_trigger_cfg;
}
// Store config.
out_cfg.mobility_config.meas_manager_config
.report_config_ids[srs_cu_cp::uint_to_report_cfg_id(report_cfg_item.report_cfg_id)] = report_cfg;
}
if (!config_helpers::is_valid_configuration(out_cfg)) {
report_error("Invalid CU-CP configuration.\n");
}
return out_cfg;
}
srs_cu_up::cu_up_configuration srsran::generate_cu_up_config(const gnb_appconfig& config)
{
srs_cu_up::cu_up_configuration out_cfg;
out_cfg.statistics_report_period = std::chrono::seconds{config.metrics_cfg.cu_up_statistics_report_period};
out_cfg.n3_cfg.gtpu_reordering_timer = std::chrono::milliseconds{config.cu_up_cfg.gtpu_reordering_timer_ms};
out_cfg.n3_cfg.warn_on_drop = config.cu_up_cfg.warn_on_drop;
if (config.amf_cfg.n3_bind_addr == "auto") {
out_cfg.net_cfg.n3_bind_addr = config.amf_cfg.bind_addr;
} else {
out_cfg.net_cfg.n3_bind_addr = config.amf_cfg.n3_bind_addr;
}
out_cfg.net_cfg.n3_bind_interface = config.amf_cfg.n3_bind_interface;
out_cfg.net_cfg.n3_rx_max_mmsg = config.amf_cfg.udp_rx_max_msgs;
out_cfg.net_cfg.f1u_bind_addr = config.amf_cfg.bind_addr; // FIXME: check if this can be removed for co-located case
return out_cfg;
}
static pcch_config generate_pcch_config(const base_cell_appconfig& cell)
{
pcch_config cfg{};
switch (cell.paging_cfg.default_paging_cycle) {
case 32:
cfg.default_paging_cycle = paging_cycle::rf32;
break;
case 64:
cfg.default_paging_cycle = paging_cycle::rf64;
break;
case 128:
cfg.default_paging_cycle = paging_cycle::rf128;
break;
case 256:
cfg.default_paging_cycle = paging_cycle::rf256;
break;
default:
report_error(
"Invalid default paging cycle={} for cell with pci={}\n", cell.paging_cfg.default_paging_cycle, cell.pci);
}
cfg.nof_pf = cell.paging_cfg.nof_pf;
if (cell.paging_cfg.pf_offset > (static_cast<unsigned>(cfg.nof_pf) - 1)) {
report_error("Invalid paging frame offset value={} for cell with pci={}. Value must be less than or equal to {}\n",
cell.paging_cfg.pf_offset,
cell.pci,
(static_cast<unsigned>(cfg.nof_pf) - 1));
}
cfg.paging_frame_offset = cell.paging_cfg.pf_offset;
switch (cell.paging_cfg.nof_po_per_pf) {
case 1:
cfg.ns = pcch_config::nof_po_per_pf::one;
break;
case 2:
cfg.ns = pcch_config::nof_po_per_pf::two;
break;
case 4:
cfg.ns = pcch_config::nof_po_per_pf::four;
break;
default:
report_error("Invalid number of paging occasions per paging frame={} for cell with pci={}\n",
cell.paging_cfg.nof_po_per_pf,
cell.pci);
}
return cfg;
}
static unsigned get_nof_rbs(const base_cell_appconfig& cell_cfg)
{
return band_helper::get_n_rbs_from_bw(
cell_cfg.channel_bw_mhz, cell_cfg.common_scs, band_helper::get_freq_range(*cell_cfg.band));
}
static tdd_ul_dl_config_common generate_tdd_pattern(subcarrier_spacing scs, const tdd_ul_dl_appconfig& config)
{
tdd_ul_dl_config_common out;
out.ref_scs = scs;
out.pattern1.dl_ul_tx_period_nof_slots = config.pattern1.dl_ul_period_slots;
out.pattern1.nof_dl_slots = config.pattern1.nof_dl_slots;
out.pattern1.nof_dl_symbols = config.pattern1.nof_dl_symbols;
out.pattern1.nof_ul_slots = config.pattern1.nof_ul_slots;
out.pattern1.nof_ul_symbols = config.pattern1.nof_ul_symbols;
if (config.pattern2.has_value()) {
out.pattern2.emplace();
out.pattern2->dl_ul_tx_period_nof_slots = config.pattern2->dl_ul_period_slots;
out.pattern2->nof_dl_slots = config.pattern2->nof_dl_slots;
out.pattern2->nof_dl_symbols = config.pattern2->nof_dl_symbols;
out.pattern2->nof_ul_slots = config.pattern2->nof_ul_slots;
out.pattern2->nof_ul_symbols = config.pattern2->nof_ul_symbols;
}
return out;
}
static void fill_csi_resources(serving_cell_config& out_cell, const base_cell_appconfig& cell_cfg)
{
const auto& csi_cfg = cell_cfg.csi_cfg;
csi_helper::csi_builder_params csi_params{};
csi_params.pci = cell_cfg.pci;
csi_params.nof_rbs = get_nof_rbs(cell_cfg);
csi_params.nof_ports = cell_cfg.nof_antennas_dl;
csi_params.csi_rs_period = static_cast<csi_resource_periodicity>(csi_cfg.csi_rs_period_msec *
get_nof_slots_per_subframe(cell_cfg.common_scs));
if (cell_cfg.tdd_ul_dl_cfg.has_value()) {
if (not csi_helper::derive_valid_csi_rs_slot_offsets(
csi_params,
csi_cfg.meas_csi_slot_offset,
csi_cfg.tracking_csi_slot_offset,
csi_cfg.zp_csi_slot_offset,
generate_tdd_pattern(cell_cfg.common_scs, *cell_cfg.tdd_ul_dl_cfg))) {
report_error("Unable to derive valid CSI-RS slot offsets and period for cell with pci={}\n", cell_cfg.pci);
}
} else {
csi_params.meas_csi_slot_offset = csi_cfg.meas_csi_slot_offset.has_value() ? *csi_cfg.meas_csi_slot_offset : 2;
csi_params.zp_csi_slot_offset = csi_cfg.zp_csi_slot_offset.has_value() ? *csi_cfg.zp_csi_slot_offset : 2;
csi_params.tracking_csi_slot_offset =
csi_cfg.tracking_csi_slot_offset.has_value() ? *csi_cfg.tracking_csi_slot_offset : 12;
}
// Generate basic csiMeasConfig.
out_cell.csi_meas_cfg = csi_helper::make_csi_meas_config(csi_params);
// Set power control offset for all nzp-CSI-RS resources.
for (auto& nzp_csi_res : out_cell.csi_meas_cfg->nzp_csi_rs_res_list) {
nzp_csi_res.pwr_ctrl_offset = cell_cfg.csi_cfg.pwr_ctrl_offset;
}
// Set CQI table according to the MCS table used for PDSCH.
switch (cell_cfg.pdsch_cfg.mcs_table) {
case pdsch_mcs_table::qam64:
out_cell.csi_meas_cfg->csi_report_cfg_list[0].cqi_table = cqi_table_t::table1;
break;
case pdsch_mcs_table::qam256:
out_cell.csi_meas_cfg->csi_report_cfg_list[0].cqi_table = cqi_table_t::table2;
break;
case pdsch_mcs_table::qam64LowSe:
out_cell.csi_meas_cfg->csi_report_cfg_list[0].cqi_table = cqi_table_t::table3;
break;
default:
report_error("Invalid MCS table={} for cell with pci={}\n", cell_cfg.pdsch_cfg.mcs_table, cell_cfg.pci);
}
// Generate zp-CSI-RS resources.
out_cell.init_dl_bwp.pdsch_cfg->zp_csi_rs_res_list = csi_helper::make_periodic_zp_csi_rs_resource_list(csi_params);
out_cell.init_dl_bwp.pdsch_cfg->p_zp_csi_rs_res = csi_helper::make_periodic_zp_csi_rs_resource_set(csi_params);
}
static sib2_info create_sib2_info(const gnb_appconfig& config)
{
sib2_info sib2;
sib2.q_hyst_db = 3;
sib2.q_rx_lev_min = -70;
sib2.s_intra_search_p = 31;
sib2.t_reselection_nr = 1;
sib2.cell_reselection_priority = 6;
sib2.thresh_serving_low_p = 0;
return sib2;
}
static sib19_info create_sib19_info(const gnb_appconfig& config)
{
sib19_info sib19;
sib19.cell_specific_koffset = config.ntn_cfg.value().cell_specific_koffset;
sib19.ephemeris_info = config.ntn_cfg.value().ephemeris_info;
// These ephemeris parameters are all scaled in accordance with NIMA TR 8350.2.
if (variant_holds_alternative<ecef_coordinates_t>(sib19.ephemeris_info.value())) {
variant_get<ecef_coordinates_t>(sib19.ephemeris_info.value()).position_x /= 1.3;
variant_get<ecef_coordinates_t>(sib19.ephemeris_info.value()).position_y /= 1.3;
variant_get<ecef_coordinates_t>(sib19.ephemeris_info.value()).position_z /= 1.3;
variant_get<ecef_coordinates_t>(sib19.ephemeris_info.value()).velocity_vx /= 0.06;
variant_get<ecef_coordinates_t>(sib19.ephemeris_info.value()).velocity_vy /= 0.06;
variant_get<ecef_coordinates_t>(sib19.ephemeris_info.value()).velocity_vz /= 0.06;
} else if (variant_holds_alternative<orbital_coordinates_t>(sib19.ephemeris_info.value())) {
variant_get<orbital_coordinates_t>(sib19.ephemeris_info.value()).semi_major_axis -= 6500000;
variant_get<orbital_coordinates_t>(sib19.ephemeris_info.value()).semi_major_axis /= 0.004249;
variant_get<orbital_coordinates_t>(sib19.ephemeris_info.value()).eccentricity /= 0.00000001431;
variant_get<orbital_coordinates_t>(sib19.ephemeris_info.value()).periapsis /= 0.00000002341;
variant_get<orbital_coordinates_t>(sib19.ephemeris_info.value()).longitude /= 0.00000002341;
variant_get<orbital_coordinates_t>(sib19.ephemeris_info.value()).inclination /= 0.00000002341;
variant_get<orbital_coordinates_t>(sib19.ephemeris_info.value()).mean_anomaly /= 0.00000002341;
}
if (config.ntn_cfg.value().distance_threshold.has_value()) {
sib19.distance_thres = config.ntn_cfg.value().distance_threshold.value();
}
if (config.ntn_cfg.value().epoch_time.has_value()) {
sib19.epoch_time = config.ntn_cfg.value().epoch_time.value();
}
if (config.ntn_cfg.value().k_mac.has_value()) {
sib19.k_mac = config.ntn_cfg.value().k_mac.value();
}
if (config.ntn_cfg.value().ta_info.has_value()) {
sib19.ta_info = config.ntn_cfg.value().ta_info.value();
}
if (config.ntn_cfg.value().reference_location.has_value()) {
sib19.ref_location = config.ntn_cfg.value().reference_location.value();
}
return sib19;
}
std::vector<du_cell_config> srsran::generate_du_cell_config(const gnb_appconfig& config)
{
srslog::basic_logger& logger = srslog::fetch_basic_logger("GNB", false);
std::vector<du_cell_config> out_cfg;
out_cfg.reserve(config.cells_cfg.size());
unsigned cell_id = 0;
for (const auto& cell : config.cells_cfg) {
cell_config_builder_params param;
const base_cell_appconfig& base_cell = cell.cell;
param.pci = base_cell.pci;
param.scs_common = base_cell.common_scs;
param.channel_bw_mhz = base_cell.channel_bw_mhz;
param.dl_arfcn = base_cell.dl_arfcn;
param.band = *base_cell.band;
// Enable CSI-RS if the PDSCH mcs is dynamic (min_ue_mcs != max_ue_mcs).
param.csi_rs_enabled = base_cell.csi_cfg.csi_rs_enabled;
param.nof_dl_ports = base_cell.nof_antennas_dl;
param.search_space0_index = base_cell.pdcch_cfg.common.ss0_index;
param.min_k1 = base_cell.pucch_cfg.min_k1;
param.min_k2 = base_cell.pusch_cfg.min_k2;
param.coreset0_index = base_cell.pdcch_cfg.common.coreset0_index;
// Set maximum CORESET#0 duration to 1 OFDM symbol for BW > 50Mhz to spread CORESET RBs across the BW. This results
// in one extra symbol to be used for PDSCH.
if (base_cell.pdcch_cfg.common.max_coreset0_duration.has_value()) {
param.max_coreset0_duration = base_cell.pdcch_cfg.common.max_coreset0_duration.value();
} else if (param.channel_bw_mhz > bs_channel_bandwidth_fr1::MHz50) {
param.max_coreset0_duration = 1;
}
const unsigned nof_crbs = band_helper::get_n_rbs_from_bw(
base_cell.channel_bw_mhz, param.scs_common, band_helper::get_freq_range(*param.band));
optional<band_helper::ssb_coreset0_freq_location> ssb_freq_loc;
if (base_cell.pdcch_cfg.common.coreset0_index.has_value()) {
ssb_freq_loc =
band_helper::get_ssb_coreset0_freq_location_for_cset0_idx(base_cell.dl_arfcn,
*param.band,
nof_crbs,
base_cell.common_scs,
base_cell.common_scs,
param.search_space0_index,
base_cell.pdcch_cfg.common.coreset0_index.value());
} else {
ssb_freq_loc = band_helper::get_ssb_coreset0_freq_location(base_cell.dl_arfcn,
*param.band,
nof_crbs,
base_cell.common_scs,
base_cell.common_scs,
param.search_space0_index,
param.max_coreset0_duration);
}
if (!ssb_freq_loc.has_value()) {
report_error("Unable to derive a valid SSB pointA and k_SSB for cell id ({}).\n", base_cell.pci);
}
param.offset_to_point_a = (*ssb_freq_loc).offset_to_point_A;
param.k_ssb = (*ssb_freq_loc).k_ssb;
param.coreset0_index = (*ssb_freq_loc).coreset0_idx;
// Set TDD pattern.
if (band_helper::get_duplex_mode(*param.band) == duplex_mode::TDD) {
param.tdd_ul_dl_cfg_common.emplace(generate_tdd_pattern(param.scs_common, cell.cell.tdd_ul_dl_cfg.value()));
}
// Create the configuration.
out_cfg.push_back(config_helpers::make_default_du_cell_config(param));
du_cell_config& out_cell = out_cfg.back();
// Set the rest of the parameters.
out_cell.nr_cgi.plmn = base_cell.plmn;
out_cell.nr_cgi.nci = config_helpers::make_nr_cell_identity(config.gnb_id, config.gnb_id_bit_length, cell_id);
out_cell.tac = base_cell.tac;
out_cell.searchspace0_idx = param.search_space0_index;
// Cell selection parameters.
out_cell.cell_sel_info.q_rx_lev_min = base_cell.q_rx_lev_min;
out_cell.cell_sel_info.q_qual_min = base_cell.q_qual_min;
// SSB config.
out_cell.ssb_cfg.ssb_period = (ssb_periodicity)base_cell.ssb_cfg.ssb_period_msec;
out_cell.ssb_cfg.ssb_block_power = base_cell.ssb_cfg.ssb_block_power;
out_cell.ssb_cfg.pss_to_sss_epre = base_cell.ssb_cfg.pss_to_sss_epre;
// SI message config.
if (not base_cell.sib_cfg.si_sched_info.empty()) {
out_cell.si_config.emplace();
out_cell.si_config->si_window_len_slots = base_cell.sib_cfg.si_window_len_slots;
out_cell.si_config->si_sched_info.resize(base_cell.sib_cfg.si_sched_info.size());
std::vector<uint8_t> sibs_included;
for (unsigned i = 0; i != base_cell.sib_cfg.si_sched_info.size(); ++i) {
auto& out_si = out_cell.si_config->si_sched_info[i];
out_si.si_period_radio_frames = base_cell.sib_cfg.si_sched_info[i].si_period_rf;
out_si.sib_mapping_info.resize(base_cell.sib_cfg.si_sched_info[i].sib_mapping_info.size());
for (unsigned j = 0; j != base_cell.sib_cfg.si_sched_info[i].sib_mapping_info.size(); ++j) {
sibs_included.push_back(base_cell.sib_cfg.si_sched_info[i].sib_mapping_info[j]);
out_si.sib_mapping_info[j] = static_cast<sib_type>(sibs_included.back());
}
}
for (const uint8_t sib_id : sibs_included) {
sib_info item;
switch (sib_id) {
case 2: {
item = create_sib2_info(config);
} break;
case 19: {
if (config.ntn_cfg.has_value()) {
item = create_sib19_info(config);
} else {
report_error("SIB19 is not configured, NTN fields required\n");
}
} break;
default:
report_error("SIB{} not supported\n", sib_id);
}
out_cell.si_config->sibs.push_back(item);
}
// Enable otherSI search space.
out_cell.dl_cfg_common.init_dl_bwp.pdcch_common.other_si_search_space_id = to_search_space_id(1);
}
// UE timers and constants config.
out_cell.ue_timers_and_constants.t300 = std::chrono::milliseconds(base_cell.sib_cfg.ue_timers_and_constants.t300);
out_cell.ue_timers_and_constants.t301 = std::chrono::milliseconds(base_cell.sib_cfg.ue_timers_and_constants.t301);
out_cell.ue_timers_and_constants.t310 = std::chrono::milliseconds(base_cell.sib_cfg.ue_timers_and_constants.t310);
out_cell.ue_timers_and_constants.n310 = base_cell.sib_cfg.ue_timers_and_constants.n310;
out_cell.ue_timers_and_constants.t311 = std::chrono::milliseconds(base_cell.sib_cfg.ue_timers_and_constants.t311);
out_cell.ue_timers_and_constants.n311 = base_cell.sib_cfg.ue_timers_and_constants.n311;
out_cell.ue_timers_and_constants.t319 = std::chrono::milliseconds(base_cell.sib_cfg.ue_timers_and_constants.t319);
// Carrier config.
out_cell.dl_carrier.nof_ant = base_cell.nof_antennas_dl;
out_cell.ul_carrier.nof_ant = base_cell.nof_antennas_ul;
// UL common config.
if (base_cell.ul_common_cfg.p_max.has_value()) {
out_cell.ul_cfg_common.freq_info_ul.p_max = base_cell.ul_common_cfg.p_max.value();
}
// DL common config.
out_cell.dl_cfg_common.freq_info_dl.scs_carrier_list.back().tx_direct_current_location = dc_offset_helper::pack(
base_cell.pdsch_cfg.dc_offset, out_cell.dl_cfg_common.freq_info_dl.scs_carrier_list.back().carrier_bandwidth);
// PRACH config.
rach_config_common& rach_cfg = *out_cell.ul_cfg_common.init_ul_bwp.rach_cfg_common;
rach_cfg.rach_cfg_generic.prach_config_index = base_cell.prach_cfg.prach_config_index.value();
rach_cfg.rach_cfg_generic.preamble_trans_max = base_cell.prach_cfg.preamble_trans_max;
rach_cfg.rach_cfg_generic.power_ramping_step_db = base_cell.prach_cfg.power_ramping_step_db;
const bool is_long_prach =
is_long_preamble(prach_configuration_get(band_helper::get_freq_range(param.band.value()),
band_helper::get_duplex_mode(param.band.value()),
rach_cfg.rach_cfg_generic.prach_config_index)
.format);
// \c is_prach_root_seq_index_l839 and msg1_scs are derived parameters, that depend on the PRACH format. They are
// originally computed in the base_cell struct, but since we overwrite the PRACH prach_config_index (which
// determines the PRACH format), we need to recompute both \c is_prach_root_seq_index_l839 and \c msg1_scs.
rach_cfg.is_prach_root_seq_index_l839 = is_long_prach;
rach_cfg.msg1_scs = is_long_prach ? subcarrier_spacing::invalid : base_cell.common_scs;
rach_cfg.prach_root_seq_index = base_cell.prach_cfg.prach_root_sequence_index;
rach_cfg.rach_cfg_generic.zero_correlation_zone_config = base_cell.prach_cfg.zero_correlation_zone;
rach_cfg.rach_cfg_generic.preamble_rx_target_pw = base_cell.prach_cfg.preamble_rx_target_pw;
// \c msg1_frequency_start for RACH is one of the parameters that can either be set manually, or need to be
// recomputed at the end of the manual configuration, as a results of other user parameters passed by the user.
bool update_msg1_frequency_start = not base_cell.prach_cfg.prach_frequency_start.has_value();
if (not update_msg1_frequency_start) {
// Set manually.
rach_cfg.rach_cfg_generic.msg1_frequency_start = base_cell.prach_cfg.prach_frequency_start.value();
}
rach_cfg.total_nof_ra_preambles = base_cell.prach_cfg.total_nof_ra_preambles;
rach_cfg.nof_ssb_per_ro = base_cell.prach_cfg.nof_ssb_per_ro;
rach_cfg.nof_cb_preambles_per_ssb = base_cell.prach_cfg.nof_cb_preambles_per_ssb;
// PhysicalCellGroup Config parameters.
if (base_cell.pcg_cfg.p_nr_fr1.has_value()) {
out_cell.pcg_params.p_nr_fr1 = base_cell.pcg_cfg.p_nr_fr1.value();
}
// MAC Cell Group Config parameters.
out_cell.mcg_params.periodic_timer = to_periodic_bsr_timer(base_cell.mcg_cfg.bsr_cfg.periodic_bsr_timer);
out_cell.mcg_params.retx_timer = to_retx_bsr_timer(base_cell.mcg_cfg.bsr_cfg.retx_bsr_timer);
if (base_cell.mcg_cfg.bsr_cfg.lc_sr_delay_timer.has_value()) {
out_cell.mcg_params.lc_sr_delay_timer = to_lc_sr_delay_timer(base_cell.mcg_cfg.bsr_cfg.lc_sr_delay_timer.value());
}
out_cell.mcg_params.max_tx = to_sr_max_tx(base_cell.mcg_cfg.sr_cfg.sr_trans_max);
out_cell.mcg_params.phr_prohib_timer = to_phr_prohibit_timer(base_cell.mcg_cfg.phr_cfg.phr_prohib_timer);
if (base_cell.mcg_cfg.sr_cfg.sr_prohibit_timer.has_value()) {
out_cell.mcg_params.sr_prohibit_timer.emplace(
to_sr_prohib_timer(base_cell.mcg_cfg.sr_cfg.sr_prohibit_timer.value()));
}
// PCCH-Config.
out_cell.dl_cfg_common.init_dl_bwp.pdcch_common.paging_search_space_id =
to_search_space_id(base_cell.paging_cfg.paging_search_space_id);
out_cell.dl_cfg_common.pcch_cfg = generate_pcch_config(base_cell);
// Parameters for PUSCH-ConfigCommon.
if (not out_cell.ul_cfg_common.init_ul_bwp.pusch_cfg_common.has_value()) {
out_cell.ul_cfg_common.init_ul_bwp.pusch_cfg_common.emplace();
}
out_cell.ul_cfg_common.init_ul_bwp.pusch_cfg_common.value().msg3_delta_preamble =
base_cell.pusch_cfg.msg3_delta_preamble;
out_cell.ul_cfg_common.init_ul_bwp.pusch_cfg_common.value().p0_nominal_with_grant =
base_cell.pusch_cfg.p0_nominal_with_grant;
out_cell.ul_cfg_common.init_ul_bwp.pusch_cfg_common.value().msg3_delta_power = base_cell.pusch_cfg.msg3_delta_power;
if (config.ntn_cfg.has_value()) {
out_cell.ntn_cs_koffset = config.ntn_cfg.value().cell_specific_koffset;
}
// Parameters for PUCCH-ConfigCommon.
if (not out_cell.ul_cfg_common.init_ul_bwp.pucch_cfg_common.has_value()) {
out_cell.ul_cfg_common.init_ul_bwp.pucch_cfg_common.emplace();
}
out_cell.ul_cfg_common.init_ul_bwp.pucch_cfg_common.value().p0_nominal = base_cell.pucch_cfg.p0_nominal;
// Common PDCCH config.
search_space_configuration& ss1_cfg = out_cell.dl_cfg_common.init_dl_bwp.pdcch_common.search_spaces.back();
ss1_cfg.set_non_ss0_nof_candidates(base_cell.pdcch_cfg.common.ss1_n_candidates);
// UE-dedicated PDCCH config.
freq_resource_bitmap freq_resources(pdcch_constants::MAX_NOF_FREQ_RESOURCES);
unsigned cset1_start_crb = 0;
if (base_cell.pdcch_cfg.dedicated.coreset1_rb_start.has_value()) {
cset1_start_crb = base_cell.pdcch_cfg.dedicated.coreset1_rb_start.value();
}
unsigned cset1_l_crb = nof_crbs - cset1_start_crb;
if (base_cell.pdcch_cfg.dedicated.coreset1_l_crb.has_value()) {
cset1_l_crb = base_cell.pdcch_cfg.dedicated.coreset1_l_crb.value();
}
const unsigned coreset1_nof_resources = cset1_l_crb / pdcch_constants::NOF_RB_PER_FREQ_RESOURCE;
freq_resources.fill(cset1_start_crb / pdcch_constants::NOF_RB_PER_FREQ_RESOURCE,
cset1_start_crb / pdcch_constants::NOF_RB_PER_FREQ_RESOURCE + coreset1_nof_resources,
true);
search_space_configuration& ss2_cfg = out_cell.ue_ded_serv_cell_cfg.init_dl_bwp.pdcch_cfg->search_spaces[0];
coreset_configuration& cset1_cfg = out_cell.ue_ded_serv_cell_cfg.init_dl_bwp.pdcch_cfg->coresets[0];
cset1_cfg.set_freq_domain_resources(freq_resources);
if (base_cell.pdcch_cfg.dedicated.coreset1_duration.has_value()) {
cset1_cfg.duration = base_cell.pdcch_cfg.dedicated.coreset1_duration.value();
} else {
cset1_cfg.duration = out_cell.dl_cfg_common.init_dl_bwp.pdcch_common.coreset0->duration;
}
const std::array<uint8_t, 5> auto_compute_ss2_n_candidates_cfg = {0, 0, 0, 0, 0};
if (base_cell.pdcch_cfg.dedicated.ss2_n_candidates != auto_compute_ss2_n_candidates_cfg) {
ss2_cfg.set_non_ss0_nof_candidates(base_cell.pdcch_cfg.dedicated.ss2_n_candidates);
} else if (base_cell.pdcch_cfg.dedicated.ss2_type != search_space_configuration::type_t::common) {
ss2_cfg.set_non_ss0_nof_candidates({0,
config_helpers::compute_max_nof_candidates(aggregation_level::n2, cset1_cfg),
config_helpers::compute_max_nof_candidates(aggregation_level::n4, cset1_cfg),
0,
0});
}
if (base_cell.pdcch_cfg.dedicated.ss2_type == search_space_configuration::type_t::common) {
ss2_cfg.set_non_ss0_monitored_dci_formats(search_space_configuration::common_dci_format{.f0_0_and_f1_0 = true});
// TODO: Handle this implementation defined restriction of max. 4 PDCCH candidates in validator.
if (base_cell.pdcch_cfg.dedicated.ss2_n_candidates == auto_compute_ss2_n_candidates_cfg) {
ss2_cfg.set_non_ss0_nof_candidates(
{0,
std::min(static_cast<uint8_t>(4U),
config_helpers::compute_max_nof_candidates(aggregation_level::n2, cset1_cfg)),
std::min(static_cast<uint8_t>(4U),
config_helpers::compute_max_nof_candidates(aggregation_level::n4, cset1_cfg)),
0,
0});
}
} else if (not base_cell.pdcch_cfg.dedicated.dci_format_0_1_and_1_1) {
search_space_configuration& ss_cfg = out_cell.ue_ded_serv_cell_cfg.init_dl_bwp.pdcch_cfg->search_spaces[0];
ss_cfg.set_non_ss0_monitored_dci_formats(search_space_configuration::ue_specific_dci_format::f0_0_and_f1_0);
}
// PDSCH-Config - Update PDSCH time domain resource allocations based on partial slot and/or dedicated PDCCH
// configuration.
out_cell.dl_cfg_common.init_dl_bwp.pdsch_common.pdsch_td_alloc_list =
config_helpers::make_pdsch_time_domain_resource(
param.search_space0_index,
out_cell.dl_cfg_common.init_dl_bwp.pdcch_common,
out_cell.ue_ded_serv_cell_cfg.init_dl_bwp.pdcch_cfg,
band_helper::get_duplex_mode(param.band.value()) == duplex_mode::TDD ? out_cell.tdd_ul_dl_cfg_common.value()
: optional<tdd_ul_dl_config_common>{});
out_cell.ue_ded_serv_cell_cfg.pdsch_serv_cell_cfg->nof_harq_proc =
(pdsch_serving_cell_config::nof_harq_proc_for_pdsch)config.cells_cfg.front().cell.pdsch_cfg.nof_harqs;
// Set DL MCS table.
out_cell.ue_ded_serv_cell_cfg.init_dl_bwp.pdsch_cfg->mcs_table = base_cell.pdsch_cfg.mcs_table;
// Set DMRS additional position.
out_cell.ue_ded_serv_cell_cfg.init_dl_bwp.pdsch_cfg->pdsch_mapping_type_a_dmrs->additional_positions =
uint_to_dmrs_additional_positions(base_cell.pdsch_cfg.dmrs_add_pos);
// Parameters for csiMeasConfig.
if (param.csi_rs_enabled) {
fill_csi_resources(out_cell.ue_ded_serv_cell_cfg, base_cell);
}
// Parameters for PUCCH-Config builder (these parameters will be used later on to generate the PUCCH resources).
pucch_builder_params& du_pucch_cfg = out_cell.pucch_cfg;
const pucch_appconfig& user_pucch_cfg = base_cell.pucch_cfg;
du_pucch_cfg.nof_ue_pucch_f1_res_harq = user_pucch_cfg.nof_ue_pucch_f1_res_harq;
du_pucch_cfg.nof_ue_pucch_f2_res_harq = user_pucch_cfg.nof_ue_pucch_f2_res_harq;
du_pucch_cfg.nof_cell_harq_pucch_res_sets = user_pucch_cfg.nof_cell_harq_pucch_sets;
du_pucch_cfg.nof_sr_resources = user_pucch_cfg.nof_cell_sr_resources;
du_pucch_cfg.nof_csi_resources = user_pucch_cfg.nof_cell_csi_resources;
du_pucch_cfg.f1_params.nof_symbols = user_pucch_cfg.f1_nof_symbols;
du_pucch_cfg.f1_params.occ_supported = user_pucch_cfg.f1_enable_occ;
du_pucch_cfg.f1_params.nof_cyc_shifts = static_cast<nof_cyclic_shifts>(user_pucch_cfg.nof_cyclic_shift);
du_pucch_cfg.f1_params.intraslot_freq_hopping = user_pucch_cfg.f1_intraslot_freq_hopping;
du_pucch_cfg.f2_params.nof_symbols = user_pucch_cfg.f2_nof_symbols;
du_pucch_cfg.f2_params.max_code_rate = user_pucch_cfg.max_code_rate;
du_pucch_cfg.f2_params.max_nof_rbs = user_pucch_cfg.f2_max_nof_rbs;
du_pucch_cfg.f2_params.intraslot_freq_hopping = user_pucch_cfg.f2_intraslot_freq_hopping;
du_pucch_cfg.f2_params.max_payload_bits = user_pucch_cfg.max_payload_bits;
// Parameters for PUSCH-Config.
if (not out_cell.ue_ded_serv_cell_cfg.ul_config.has_value()) {
out_cell.ue_ded_serv_cell_cfg.ul_config.emplace();
}
if (not out_cell.ue_ded_serv_cell_cfg.ul_config.value().init_ul_bwp.pusch_cfg.has_value()) {
out_cell.ue_ded_serv_cell_cfg.ul_config.value().init_ul_bwp.pusch_cfg.emplace();
}
// Set DMRS additional position.
out_cell.ue_ded_serv_cell_cfg.ul_config.value()
.init_ul_bwp.pusch_cfg->pusch_mapping_type_a_dmrs->additional_positions =
uint_to_dmrs_additional_positions(base_cell.pusch_cfg.dmrs_add_pos);
// Set UL MCS table.
out_cell.ue_ded_serv_cell_cfg.ul_config->init_ul_bwp.pusch_cfg->mcs_table = base_cell.pusch_cfg.mcs_table;
if (not out_cell.ue_ded_serv_cell_cfg.ul_config.value().init_ul_bwp.pusch_cfg.value().uci_cfg.has_value()) {
out_cell.ue_ded_serv_cell_cfg.ul_config.value().init_ul_bwp.pusch_cfg.value().uci_cfg.emplace();
}
if (not out_cell.ue_ded_serv_cell_cfg.ul_config.value().init_ul_bwp.pusch_cfg.value().uci_cfg.has_value()) {
out_cell.ue_ded_serv_cell_cfg.ul_config.value().init_ul_bwp.pusch_cfg.value().uci_cfg.emplace();
}
if (not out_cell.ue_ded_serv_cell_cfg.ul_config.value()
.init_ul_bwp.pusch_cfg.value()
.uci_cfg.value()
.beta_offsets_cfg.has_value()) {
out_cell.ue_ded_serv_cell_cfg.ul_config.value()
.init_ul_bwp.pusch_cfg.value()
.uci_cfg.value()
.beta_offsets_cfg->emplace<uci_on_pusch::beta_offsets_semi_static>();
}
if (not variant_holds_alternative<uci_on_pusch::beta_offsets_semi_static>(
out_cell.ue_ded_serv_cell_cfg.ul_config.value()
.init_ul_bwp.pusch_cfg.value()
.uci_cfg.value()
.beta_offsets_cfg.value())) {
out_cell.ue_ded_serv_cell_cfg.ul_config.value()
.init_ul_bwp.pusch_cfg.value()
.uci_cfg.value()
.beta_offsets_cfg.reset();
out_cell.ue_ded_serv_cell_cfg.ul_config.value()
.init_ul_bwp.pusch_cfg.value()
.uci_cfg.value()
.beta_offsets_cfg->emplace<uci_on_pusch::beta_offsets_semi_static>();
}
beta_offsets& b_offsets =
variant_get<uci_on_pusch::beta_offsets_semi_static>(out_cell.ue_ded_serv_cell_cfg.ul_config.value()
.init_ul_bwp.pusch_cfg.value()
.uci_cfg.value()
.beta_offsets_cfg.value());
b_offsets.beta_offset_ack_idx_1 = base_cell.pusch_cfg.b_offset_ack_idx_1;
b_offsets.beta_offset_ack_idx_2 = base_cell.pusch_cfg.b_offset_ack_idx_2;
b_offsets.beta_offset_ack_idx_3 = base_cell.pusch_cfg.b_offset_ack_idx_3;
b_offsets.beta_offset_csi_p1_idx_1 = base_cell.pusch_cfg.b_offset_csi_p1_idx_1;
b_offsets.beta_offset_csi_p1_idx_2 = base_cell.pusch_cfg.b_offset_csi_p1_idx_2;
b_offsets.beta_offset_csi_p2_idx_1 = base_cell.pusch_cfg.b_offset_csi_p2_idx_1;
b_offsets.beta_offset_csi_p2_idx_2 = base_cell.pusch_cfg.b_offset_csi_p2_idx_2;
// Parameters for PUCCH-Config.
if (not out_cell.ue_ded_serv_cell_cfg.ul_config.value().init_ul_bwp.pucch_cfg.has_value()) {
out_cell.ue_ded_serv_cell_cfg.ul_config.value().init_ul_bwp.pucch_cfg.emplace();
}
auto& sr_cng = out_cell.ue_ded_serv_cell_cfg.ul_config.value().init_ul_bwp.pucch_cfg.value().sr_res_list;
if (sr_cng.empty()) {
sr_cng.emplace_back(scheduling_request_resource_config{});
}
sr_cng.front().period = static_cast<sr_periodicity>(get_nof_slots_per_subframe(base_cell.common_scs) *
base_cell.pucch_cfg.sr_period_msec);
// If any dependent parameter needs to be updated, this is the place.
config_helpers::compute_nof_sr_csi_pucch_res(
du_pucch_cfg,
base_cell.ul_common_cfg.max_pucchs_per_slot,
base_cell.pucch_cfg.sr_period_msec,
base_cell.csi_cfg.csi_rs_enabled ? optional<unsigned>{base_cell.csi_cfg.csi_rs_period_msec} : nullopt);
if (update_msg1_frequency_start) {
rach_cfg.rach_cfg_generic.msg1_frequency_start = config_helpers::compute_prach_frequency_start(
du_pucch_cfg, out_cell.ul_cfg_common.init_ul_bwp.generic_params.crbs.length(), is_long_prach);
}
logger.info(
"SSB derived parameters for cell: {}, band: {}, dl_arfcn:{}, crbs: {} scs:{}, ssb_scs:{}:\n\t - SSB offset "
"pointA:{} \n\t - k_SSB:{} \n\t - SSB arfcn:{} \n\t - Coreset index:{} \n\t - Searchspace index:{}",
base_cell.pci,
*param.band,
base_cell.dl_arfcn,
nof_crbs,
to_string(base_cell.common_scs),
to_string(out_cfg.back().ssb_cfg.scs),
(*ssb_freq_loc).offset_to_point_A.to_uint(),
(*ssb_freq_loc).k_ssb.to_uint(),
(*ssb_freq_loc).ssb_arfcn,
(*ssb_freq_loc).coreset0_idx,
(*ssb_freq_loc).searchspace0_idx);
error_type<std::string> error = is_du_cell_config_valid(out_cfg.back());
if (!error) {
report_error("Invalid configuration DU cell detected.\n> {}\n", error.error());
}
++cell_id;
}
return out_cfg;
}
srsran::security::preferred_integrity_algorithms
srsran::generate_preferred_integrity_algorithms_list(const gnb_appconfig& config)
{
// String splitter helper
auto split = [](const std::string& s, char delim) -> std::vector<std::string> {
std::vector<std::string> result;
std::stringstream ss(s);
for (std::string item; getline(ss, item, delim);) {
result.push_back(item);
}
return result;
};
// > Remove spaces, convert to lower case and split on comma
std::string nia_preference_list = config.cu_cp_cfg.security_config.nia_preference_list;
nia_preference_list.erase(std::remove_if(nia_preference_list.begin(), nia_preference_list.end(), ::isspace),
nia_preference_list.end());
std::transform(nia_preference_list.begin(),
nia_preference_list.end(),
nia_preference_list.begin(),
[](unsigned char c) { return std::tolower(c); });
std::vector<std::string> nea_v = split(nia_preference_list, ',');
security::preferred_integrity_algorithms algo_list = {};
int idx = 0;
for (const std::string& nea : nea_v) {
if (nea == "nia0") {
algo_list[idx] = security::integrity_algorithm::nia0;
} else if (nea == "nia1") {
algo_list[idx] = security::integrity_algorithm::nia1;
} else if (nea == "nia2") {
algo_list[idx] = security::integrity_algorithm::nia2;
} else if (nea == "nia3") {
algo_list[idx] = security::integrity_algorithm::nia3;
}
idx++;
}
return algo_list;
}
srsran::security::preferred_ciphering_algorithms
srsran::generate_preferred_ciphering_algorithms_list(const gnb_appconfig& config)
{
// String splitter helper
auto split = [](const std::string& s, char delim) -> std::vector<std::string> {
std::vector<std::string> result;
std::stringstream ss(s);
for (std::string item; getline(ss, item, delim);) {
result.push_back(item);
}
return result;
};
// > Remove spaces, convert to lower case and split on comma
std::string nea_preference_list = config.cu_cp_cfg.security_config.nea_preference_list;
nea_preference_list.erase(std::remove_if(nea_preference_list.begin(), nea_preference_list.end(), ::isspace),
nea_preference_list.end());
std::transform(nea_preference_list.begin(),
nea_preference_list.end(),
nea_preference_list.begin(),
[](unsigned char c) { return std::tolower(c); });
std::vector<std::string> nea_v = split(nea_preference_list, ',');
security::preferred_ciphering_algorithms algo_list = {};
int idx = 0;
for (const std::string& nea : nea_v) {
if (nea == "nea0") {
algo_list[idx] = security::ciphering_algorithm::nea0;
} else if (nea == "nea1") {
algo_list[idx] = security::ciphering_algorithm::nea1;
} else if (nea == "nea2") {
algo_list[idx] = security::ciphering_algorithm::nea2;
} else if (nea == "nea3") {
algo_list[idx] = security::ciphering_algorithm::nea3;
}
idx++;
}
return algo_list;
}
std::map<five_qi_t, srs_cu_cp::cu_cp_qos_config> srsran::generate_cu_cp_qos_config(const gnb_appconfig& config)
{
std::map<five_qi_t, srs_cu_cp::cu_cp_qos_config> out_cfg = {};
if (config.qos_cfg.empty()) {
out_cfg = config_helpers::make_default_cu_cp_qos_config_list();
return out_cfg;
}
for (const qos_appconfig& qos : config.qos_cfg) {
if (out_cfg.find(qos.five_qi) != out_cfg.end()) {
report_error("Duplicate 5QI configuration: {}\n", qos.five_qi);
}
// Convert PDCP config
pdcp_config& out_pdcp = out_cfg[qos.five_qi].pdcp;
// RB type
out_pdcp.rb_type = pdcp_rb_type::drb;
// RLC mode
rlc_mode mode = {};
if (!from_string(mode, qos.rlc.mode)) {
report_error("Invalid RLC mode: {}, mode={}\n", qos.five_qi, qos.rlc.mode);
}
if (mode == rlc_mode::um_bidir || mode == rlc_mode::um_unidir_ul || mode == rlc_mode::um_unidir_dl) {
out_pdcp.rlc_mode = pdcp_rlc_mode::um;
} else if (mode == rlc_mode::am) {
out_pdcp.rlc_mode = pdcp_rlc_mode::am;
} else {
report_error("Invalid RLC mode: {}, mode={}\n", qos.five_qi, qos.rlc.mode);
}