/* * Copyright 2013-2020 Software Radio Systems Limited * * This file is part of srsLTE. * * srsLTE 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. * * srsLTE 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 "scheduler_test_common.h" #include "srsenb/hdr/stack/mac/scheduler_grid.h" #include "srslte/common/test_common.h" using namespace srsenb; // const uint32_t seed = std::chrono::system_clock::now().time_since_epoch().count(); const uint32_t seed = 3930373626; const uint32_t PCell_IDX = 0; const std::array prb_list = {6, 15, 25, 50, 75, 100}; uint32_t get_aggr_level(sched_ue& sched_ue, uint32_t ue_cc_idx, const std::vector& cell_params) { srslte_dci_format_t dci_format = sched_ue.get_dci_format(); uint32_t nof_dci_bits = srslte_dci_format_sizeof(&cell_params[ue_cc_idx].cfg.cell, nullptr, nullptr, dci_format); uint32_t aggr_level = sched_ue.get_aggr_level(ue_cc_idx, nof_dci_bits); return aggr_level; } int test_pdcch_one_ue() { using rand_uint = std::uniform_int_distribution; const uint32_t ENB_CC_IDX = 0; // Params uint32_t nof_prb = prb_list[rand_uint{0, 5}(get_rand_gen())]; uint16_t rnti = rand_uint{70, 120}(get_rand_gen()); srslte::tti_point start_tti{rand_uint{0, 10240}(get_rand_gen())}; uint32_t nof_ttis = 100; // Derived std::vector cell_params(1); sched_interface::ue_cfg_t ue_cfg = generate_default_ue_cfg(); sched_interface::cell_cfg_t cell_cfg = generate_default_cell_cfg(nof_prb); sched_interface::sched_args_t sched_args{}; cell_params[ENB_CC_IDX].set_cfg(ENB_CC_IDX, cell_cfg, sched_args); pdcch_grid_t pdcch; sched_ue sched_ue{}; sched_ue.init(rnti, cell_params); sched_ue.set_cfg(ue_cfg); pdcch.init(cell_params[PCell_IDX]); TESTASSERT(pdcch.nof_alloc_combinations() == 0); TESTASSERT(pdcch.nof_allocs() == 0); uint32_t tti_counter = 0; for (; tti_counter < nof_ttis; ++tti_counter) { tti_params_t tti_params{(start_tti + tti_counter).to_uint()}; pdcch.new_tti(tti_params); TESTASSERT(pdcch.nof_cces() == cell_params[ENB_CC_IDX].nof_cce_table[0]); TESTASSERT(pdcch.get_cfi() == 1); // Start at CFI=1 // Set DL CQI - it should affect aggregation level uint32_t dl_cqi = std::uniform_int_distribution{1, 25}(srsenb::get_rand_gen()); sched_ue.set_dl_cqi(tti_params.tti_tx_dl, ENB_CC_IDX, dl_cqi); uint32_t aggr_idx = get_aggr_level(sched_ue, PCell_IDX, cell_params); uint32_t max_nof_cce_locs = sched_ue.get_locations(ENB_CC_IDX, pdcch_grid_t::MAX_CFI, tti_params.sf_idx_tx_dl)->nof_loc[aggr_idx]; // allocate DL user uint32_t prev_cfi = pdcch.get_cfi(); srsenb::sched_dci_cce_t* dci_cce = sched_ue.get_locations(ENB_CC_IDX, prev_cfi, tti_params.sf_idx_tx_dl); uint32_t prev_nof_cce_locs = dci_cce->nof_loc[aggr_idx]; TESTASSERT(pdcch.alloc_dci(alloc_type_t::DL_DATA, aggr_idx, &sched_ue)); TESTASSERT(pdcch.nof_allocs() == 1); if (prev_nof_cce_locs == pdcch.nof_allocs() - 1) { // CFI must be increased TESTASSERT(pdcch.get_cfi() > prev_cfi); } else { // Previous CFI should be fine TESTASSERT(pdcch.get_cfi() == prev_cfi); } dci_cce = sched_ue.get_locations(ENB_CC_IDX, pdcch.get_cfi(), tti_params.sf_idx_tx_dl); uint32_t nof_dci_locs = dci_cce->nof_loc[aggr_idx]; const uint32_t* dci_locs = dci_cce->cce_start[aggr_idx]; pdcch_grid_t::alloc_result_t pdcch_result; pdcch_mask_t pdcch_mask; pdcch.get_allocs(&pdcch_result, &pdcch_mask, 0); TESTASSERT(pdcch_result.size() == 1); TESTASSERT(pdcch_result[0]->rnti == sched_ue.get_rnti()); TESTASSERT(pdcch_result[0]->total_mask.size() == cell_params[ENB_CC_IDX].nof_cce_table[pdcch.get_cfi() - 1]); TESTASSERT(pdcch_result[0]->current_mask == pdcch_result[0]->total_mask); TESTASSERT(pdcch_result[0]->current_mask.count() == 1u << aggr_idx); TESTASSERT(std::count(dci_locs, dci_locs + nof_dci_locs, pdcch_result[0]->dci_pos.ncce) > 0); // allocate UL user if (max_nof_cce_locs == pdcch.nof_allocs()) { // no more space continue; } prev_nof_cce_locs = nof_dci_locs; prev_cfi = pdcch.get_cfi(); TESTASSERT(pdcch.alloc_dci(alloc_type_t::UL_DATA, aggr_idx, &sched_ue)); TESTASSERT(pdcch.nof_allocs() == 2); if (prev_nof_cce_locs == pdcch.nof_allocs() - 1) { // CFI must be increased TESTASSERT(pdcch.get_cfi() > prev_cfi); } else { // Previous CFI should be fine TESTASSERT(pdcch.get_cfi() == prev_cfi); } dci_cce = sched_ue.get_locations(ENB_CC_IDX, pdcch.get_cfi(), tti_params.sf_idx_tx_dl); nof_dci_locs = dci_cce->nof_loc[aggr_idx]; dci_locs = dci_cce->cce_start[aggr_idx]; pdcch.get_allocs(&pdcch_result, &pdcch_mask, 0); TESTASSERT(pdcch_result.size() == pdcch.nof_allocs()); TESTASSERT(pdcch_result[1]->rnti == sched_ue.get_rnti()); TESTASSERT(pdcch_result[1]->total_mask.size() == cell_params[ENB_CC_IDX].nof_cce_table[pdcch.get_cfi() - 1]); TESTASSERT((pdcch_result[1]->current_mask & pdcch_result[0]->current_mask).none()); TESTASSERT(pdcch_result[1]->current_mask.count() == 1u << aggr_idx); TESTASSERT(pdcch_result[1]->total_mask == (pdcch_result[0]->current_mask | pdcch_result[1]->current_mask)); TESTASSERT(std::count(dci_locs, dci_locs + nof_dci_locs, pdcch_result[0]->dci_pos.ncce) > 0); srslte::logmap::get("TEST")->info("PDCCH alloc result: %s\n", pdcch.result_to_string(true).c_str()); } TESTASSERT(tti_counter == nof_ttis); return SRSLTE_SUCCESS; } int main() { srsenb::set_randseed(seed); printf("This is the chosen seed: %u\n", seed); TESTASSERT(test_pdcch_one_ue() == SRSLTE_SUCCESS); }