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rrc,gnb: fix search space NSA config

This commit is contained in:
Francisco Paisana 2022-02-07 16:06:59 +00:00
parent 532a4b54e7
commit c0dda2958c
5 changed files with 82 additions and 93 deletions
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2
lib/src/asn1/rrc_nr_utils.cc
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@ -1792,7 +1792,7 @@ bool fill_phy_pdcch_cfg_common(const asn1::rrc_nr::pdcch_cfg_common_s& pdcch_cfg
pdcch->ra_search_space = pdcch->search_space[ss.search_space_id];
pdcch->ra_search_space.type = srsran_search_space_type_common_1;
pdcch->ra_search_space.nof_formats = 1;
pdcch->ra_search_space.formats[1] = srsran_dci_format_nr_1_0;
pdcch->ra_search_space.formats[0] = srsran_dci_format_nr_1_0;
}
}
return true;

1
srsgnb/hdr/stack/rrc/rrc_nr_du_manager.h
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@ -35,6 +35,7 @@ public:
srsran_ssb_patern_t ssb_pattern;
double ssb_center_freq_hz;
double dl_freq_hz;
bool is_standalone;
const asn1::rrc_nr::serving_cell_cfg_common_sib_s& serv_cell_cfg_common() const
{

2
srsgnb/src/stack/rrc/cell_asn1_config.cc
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@ -1054,7 +1054,7 @@ void fill_pdcch_cfg_common(const rrc_nr_cfg_t& cfg, uint32_t cc, pdcch_cfg_commo
out.common_ctrl_res_set_present = cell_cfg.pdcch_cfg_common.common_ctrl_res_set_present;
out.common_ctrl_res_set = cell_cfg.pdcch_cfg_common.common_ctrl_res_set;
out.common_search_space_list = cell_cfg.pdcch_cfg_ded.search_spaces_to_add_mod_list;
out.common_search_space_list = cell_cfg.pdcch_cfg_common.common_search_space_list;
out.search_space_sib1_present = true;
out.search_space_sib1 = 0;

151
srsgnb/src/stack/rrc/rrc_nr_config_utils.cc
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@ -28,6 +28,8 @@
} \
} while (0)
using namespace asn1::rrc_nr;
namespace srsenb {
uint32_t coreset_get_bw(const asn1::rrc_nr::ctrl_res_set_s& coreset)
@ -57,6 +59,48 @@ int coreset_get_pdcch_nr_max_candidates(const asn1::rrc_nr::ctrl_res_set_s& core
return SRSRAN_MIN(nof_candidates, SRSRAN_SEARCH_SPACE_MAX_NOF_CANDIDATES_NR);
}
ctrl_res_set_s make_default_coreset(uint8_t coreset_id, uint32_t nof_prb)
{
ctrl_res_set_s coreset;
coreset.ctrl_res_set_id = coreset_id;
// Generate frequency resources for the full BW
for (uint32_t i = 0; i < SRSRAN_CORESET_FREQ_DOMAIN_RES_SIZE; i++) {
coreset.freq_domain_res.set(coreset.freq_domain_res.length() - i - 1, i < SRSRAN_FLOOR(nof_prb, 6));
}
coreset.dur = 1;
coreset.cce_reg_map_type.set_non_interleaved();
coreset.precoder_granularity.value = ctrl_res_set_s::precoder_granularity_opts::same_as_reg_bundle;
return coreset;
}
search_space_s make_default_common_search_space(uint8_t ss_id, const ctrl_res_set_s& cs)
{
search_space_s ss;
ss.search_space_id = ss_id;
ss.ctrl_res_set_id_present = true;
ss.ctrl_res_set_id = cs.ctrl_res_set_id;
ss.dur_present = false; // false for duration=1
ss.monitoring_slot_periodicity_and_offset_present = true;
ss.monitoring_slot_periodicity_and_offset.set_sl1();
ss.monitoring_symbols_within_slot_present = true;
ss.monitoring_symbols_within_slot.from_number(0b10000000000000);
ss.search_space_type_present = true;
ss.search_space_type.set_common().dci_format0_minus0_and_format1_minus0_present = true;
ss.nrof_candidates_present = true;
uint32_t nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(cs, 0), 2);
asn1::number_to_enum(ss.nrof_candidates.aggregation_level1, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(cs, 1), 2);
asn1::number_to_enum(ss.nrof_candidates.aggregation_level2, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(cs, 2), 2);
asn1::number_to_enum(ss.nrof_candidates.aggregation_level4, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(cs, 3), 2);
asn1::number_to_enum(ss.nrof_candidates.aggregation_level8, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(cs, 4), 2);
asn1::number_to_enum(ss.nrof_candidates.aggregation_level16, nof_cand);
return ss;
}
/// Generate default phy cell configuration
void generate_default_nr_phy_cell(phy_cell_cfg_nr_t& phy_cell)
{
@ -77,7 +121,7 @@ void generate_default_nr_phy_cell(phy_cell_cfg_nr_t& phy_cell)
phy_cell.prach.freq_offset = 1; // msg1-FrequencyStart (zero not supported with current PRACH implementation)
phy_cell.prach.zero_corr_zone = 0;
phy_cell.prach.num_ra_preambles = phy_cell.num_ra_preambles;
phy_cell.prach.hs_flag = false;
phy_cell.prach.hs_flag = false;
phy_cell.prach.tdd_config.configured = false;
// PDSCH
@ -96,41 +140,15 @@ void generate_default_nr_cell(rrc_cell_cfg_nr_t& cell)
// PDCCH
// - Add CORESET#2 as UE-specific
cell.pdcch_cfg_ded.ctrl_res_set_to_add_mod_list.resize(1);
auto& coreset2 = cell.pdcch_cfg_ded.ctrl_res_set_to_add_mod_list[0];
coreset2.ctrl_res_set_id = 2;
// Generate frequency resources for the full BW
for (uint32_t i = 0; i < SRSRAN_CORESET_FREQ_DOMAIN_RES_SIZE; i++) {
coreset2.freq_domain_res.set(i, i < SRSRAN_FLOOR(cell.phy_cell.carrier.nof_prb, 6));
}
coreset2.dur = 1;
coreset2.cce_reg_map_type.set_non_interleaved();
coreset2.precoder_granularity.value = asn1::rrc_nr::ctrl_res_set_s::precoder_granularity_opts::same_as_reg_bundle;
auto& coreset2 = cell.pdcch_cfg_ded.ctrl_res_set_to_add_mod_list[0];
coreset2 = make_default_coreset(2, cell.phy_cell.carrier.nof_prb);
// - Add SearchSpace#2 as UE-specific -> CORESET#2
cell.pdcch_cfg_ded.search_spaces_to_add_mod_list.resize(1);
auto& ss2 = cell.pdcch_cfg_ded.search_spaces_to_add_mod_list[0];
ss2.search_space_id = 2;
ss2.ctrl_res_set_id_present = true;
ss2.ctrl_res_set_id = coreset2.ctrl_res_set_id;
ss2.dur_present = false; // false for duration=1
ss2.monitoring_slot_periodicity_and_offset_present = true;
ss2.monitoring_slot_periodicity_and_offset.set_sl1();
ss2.monitoring_symbols_within_slot_present = true;
ss2.monitoring_symbols_within_slot.from_number(0b10000000000000);
ss2.search_space_type_present = true;
auto& ss2 = cell.pdcch_cfg_ded.search_spaces_to_add_mod_list[0];
ss2 = make_default_common_search_space(2, coreset2);
ss2.search_space_type.set_ue_specific().dci_formats.value = asn1::rrc_nr::search_space_s::search_space_type_c_::
ue_specific_s_::dci_formats_opts::formats0_minus0_and_minus1_minus0;
ss2.nrof_candidates_present = true;
uint32_t nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(coreset2, 0), 2);
asn1::number_to_enum(ss2.nrof_candidates.aggregation_level1, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(coreset2, 1), 2);
asn1::number_to_enum(ss2.nrof_candidates.aggregation_level2, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(coreset2, 2), 2);
asn1::number_to_enum(ss2.nrof_candidates.aggregation_level4, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(coreset2, 3), 2);
asn1::number_to_enum(ss2.nrof_candidates.aggregation_level8, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(coreset2, 4), 2);
asn1::number_to_enum(ss2.nrof_candidates.aggregation_level16, nof_cand);
}
int derive_ssb_params(bool is_sa,
@ -260,64 +278,31 @@ int set_derived_nr_cell_params(bool is_sa, rrc_cell_cfg_nr_t& cell)
cell.ssb_absolute_freq_point = band_helper.freq_to_nr_arfcn(cell.ssb_freq_hz);
// Derive remaining config params
cell.pdcch_cfg_common.common_search_space_list.resize(1); // SearchSpace#1
auto& ss1 = cell.pdcch_cfg_common.common_search_space_list[0];
ss1.search_space_id = 1;
ss1.dur_present = false; // false for duration=1
ss1.monitoring_slot_periodicity_and_offset_present = true;
ss1.monitoring_slot_periodicity_and_offset.set_sl1();
ss1.monitoring_symbols_within_slot_present = true;
ss1.monitoring_symbols_within_slot.from_number(0b10000000000000);
ss1.nrof_candidates_present = true;
ss1.search_space_type_present = true;
ss1.search_space_type.set_common().dci_format0_minus0_and_format1_minus0_present = true;
cell.pdcch_cfg_common.ra_search_space_present = true;
cell.pdcch_cfg_common.ra_search_space = cell.pdcch_cfg_common.common_search_space_list[0].search_space_id;
if (not is_sa) {
// Configure CORESET#1
cell.pdcch_cfg_common.common_ctrl_res_set_present = true;
cell.pdcch_cfg_common.common_ctrl_res_set = make_default_coreset(1, cell.phy_cell.carrier.nof_prb);
}
// Configure SearchSpace#1
cell.pdcch_cfg_common.common_search_space_list.resize(1);
auto& ss1 = cell.pdcch_cfg_common.common_search_space_list[0];
if (is_sa) {
// Configure SearchSpace#1 -> CORESET#0
ss1.ctrl_res_set_id_present = true;
ss1.ctrl_res_set_id = 0;
ss1.nrof_candidates.aggregation_level1.value =
asn1::rrc_nr::search_space_s::nrof_candidates_s_::aggregation_level1_opts::n0;
ss1.nrof_candidates.aggregation_level2.value =
asn1::rrc_nr::search_space_s::nrof_candidates_s_::aggregation_level2_opts::n0;
ss1.nrof_candidates.aggregation_level4.value =
asn1::rrc_nr::search_space_s::nrof_candidates_s_::aggregation_level4_opts::n1;
ss1.nrof_candidates.aggregation_level8.value =
asn1::rrc_nr::search_space_s::nrof_candidates_s_::aggregation_level8_opts::n0;
ss1.nrof_candidates.aggregation_level16.value =
asn1::rrc_nr::search_space_s::nrof_candidates_s_::aggregation_level16_opts::n0;
ctrl_res_set_s dummy_coreset = make_default_coreset(0, cell.phy_cell.carrier.nof_prb);
ss1 = make_default_common_search_space(1, dummy_coreset);
ss1.nrof_candidates.aggregation_level1.value = search_space_s::nrof_candidates_s_::aggregation_level1_opts::n0;
ss1.nrof_candidates.aggregation_level2.value = search_space_s::nrof_candidates_s_::aggregation_level2_opts::n0;
ss1.nrof_candidates.aggregation_level4.value = search_space_s::nrof_candidates_s_::aggregation_level4_opts::n1;
ss1.nrof_candidates.aggregation_level8.value = search_space_s::nrof_candidates_s_::aggregation_level8_opts::n0;
ss1.nrof_candidates.aggregation_level16.value = search_space_s::nrof_candidates_s_::aggregation_level16_opts::n0;
} else {
// Configure CORESET#1
// Note: In NSA, Common CORESET is passed in RRC Reconfiguration
cell.pdcch_cfg_common.common_ctrl_res_set_present = true;
auto& coreset1 = cell.pdcch_cfg_common.common_ctrl_res_set;
coreset1.ctrl_res_set_id = 1;
// Generate frequency resources for the full BW
for (uint32_t i = 0; i < SRSRAN_CORESET_FREQ_DOMAIN_RES_SIZE; ++i) {
coreset1.freq_domain_res.set(i, i < SRSRAN_FLOOR(cell.phy_cell.carrier.nof_prb, 6));
}
coreset1.dur = 1;
coreset1.cce_reg_map_type.set_non_interleaved();
coreset1.precoder_granularity.value = asn1::rrc_nr::ctrl_res_set_s::precoder_granularity_opts::same_as_reg_bundle;
// Configure SearchSpace#1 -> CORESET#1
ss1.ctrl_res_set_id_present = true;
ss1.ctrl_res_set_id = coreset1.ctrl_res_set_id;
uint32_t nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(coreset1, 0), 2);
asn1::number_to_enum(ss1.nrof_candidates.aggregation_level1, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(coreset1, 1), 2);
asn1::number_to_enum(ss1.nrof_candidates.aggregation_level2, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(coreset1, 2), 2);
asn1::number_to_enum(ss1.nrof_candidates.aggregation_level4, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(coreset1, 3), 2);
asn1::number_to_enum(ss1.nrof_candidates.aggregation_level8, nof_cand);
nof_cand = SRSRAN_MIN(coreset_get_pdcch_nr_max_candidates(coreset1, 4), 2);
asn1::number_to_enum(ss1.nrof_candidates.aggregation_level16, nof_cand);
ss1.search_space_type_present = true;
ss1.search_space_type.set_common().dci_format0_minus0_and_format1_minus0_present = true;
ss1 = make_default_common_search_space(1, cell.pdcch_cfg_common.common_ctrl_res_set);
// cell.phy_cell.pdcch.search_space[1].type = srsran_search_space_type_common_3;
}
cell.pdcch_cfg_common.ra_search_space_present = true;
cell.pdcch_cfg_common.ra_search_space = ss1.search_space_id;
// Derive remaining PHY cell params
cell.phy_cell.prach.num_ra_preambles = cell.phy_cell.num_ra_preambles;

19
srsgnb/src/stack/rrc/rrc_nr_du_manager.cc
View File

@ -83,12 +83,14 @@ int du_config_manager::add_cell()
}
cell.packed_sib1->N_bytes = bref.distance_bytes();
}
logger.info(cell.packed_sib1->data(),
cell.packed_sib1->size(),
"BCCH-DL-SCH-Message (with SIB1) (%d B)",
cell.packed_sib1->size());
cell.sib1.to_json(js);
logger.info("SIB1 content: %s", js.to_string().c_str());
if (cfg.is_standalone) {
logger.info(cell.packed_sib1->data(),
cell.packed_sib1->size(),
"BCCH-DL-SCH-Message (with SIB1) (%d B)",
cell.packed_sib1->size());
cell.sib1.to_json(js);
logger.info("SIB1 content: %s", js.to_string().c_str());
}
// Generate SSB SCS
srsran_subcarrier_spacing_t ssb_scs;
@ -98,6 +100,7 @@ int du_config_manager::add_cell()
cell.ssb_scs.value = (subcarrier_spacing_e::options)ssb_scs;
cell.ssb_center_freq_hz = cfg.cell_list[cell.cc].ssb_freq_hz;
cell.dl_freq_hz = cfg.cell_list[cell.cc].phy_cell.carrier.dl_center_frequency_hz;
cell.is_standalone = cfg.is_standalone;
cells.push_back(std::move(obj));
return SRSRAN_SUCCESS;
@ -108,8 +111,8 @@ void fill_phy_pdcch_cfg_common(const du_cell_config& cell, srsran_pdcch_cfg_nr_t
const serving_cell_cfg_common_sib_s& serv_cell = cell.serv_cell_cfg_common();
const pdcch_cfg_common_s& pdcch_common = serv_cell.dl_cfg_common.init_dl_bwp.pdcch_cfg_common.setup();
bool is_sa = pdcch_common.ctrl_res_set_zero_present;
uint8_t coreset0_idx = pdcch_common.ctrl_res_set_zero;
bool is_sa = cell.is_standalone;
uint8_t coreset0_idx = cell.mib.pdcch_cfg_sib1.ctrl_res_set_zero;
auto scs = (srsran_subcarrier_spacing_t)serv_cell.dl_cfg_common.init_dl_bwp.generic_params.subcarrier_spacing.value;
auto ssb_scs = (srsran_subcarrier_spacing_t)cell.ssb_scs.value;
uint32_t nof_prb = serv_cell.dl_cfg_common.freq_info_dl.scs_specific_carrier_list[0].carrier_bw;