mirror of https://github.com/pvnis/srsRAN_4G.git
SRSUE: Added intra frequency SCell search test
Xavier Arteaga
6 years ago
committed by
Xavier Arteaga
parent
d7c1a0bda9
commit
368690ea6b
@ -0,0 +1,34 @@
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#
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# Copyright 2013-2019 Software Radio Systems Limited
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#
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# This file is part of srsLTE
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#
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# srsLTE is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of
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# the License, or (at your option) any later version.
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#
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# srsLTE is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# A copy of the GNU Affero General Public License can be found in
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# the LICENSE file in the top-level directory of this distribution
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# and at http://www.gnu.org/licenses/.
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#
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add_executable(scell_search_test scell_search_test.cc)
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target_link_libraries(scell_search_test srsue_phy
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srsue_stack
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srsue_upper
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srsue_mac
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srsue_rrc
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srslte_common
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srslte_phy
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srslte_radio
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srslte_upper
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rrc_asn1
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${CMAKE_THREAD_LIBS_INIT}
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${Boost_LIBRARIES})
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add_test(scell_search_test scell_search_test)
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@ -0,0 +1,295 @@
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/*
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* Copyright 2013-2019 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <memory>
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#include <srslte/phy/channel/channel.h>
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#include <srslte/srslte.h>
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#include <srsue/hdr/phy/scell/intra_measure.h>
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#include <vector>
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// Simulation parameters
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static uint16_t pdsch_rnti = 0x1234;
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static srslte_cell_t cell_base = {.nof_prb = 6,
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.nof_ports = 1,
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.id = 0,
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.cp = SRSLTE_CP_NORM,
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.phich_length = SRSLTE_PHICH_NORM,
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.phich_resources = SRSLTE_PHICH_R_1_6,
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.frame_type = SRSLTE_FDD};
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static uint32_t nof_enb = 3;
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static uint16_t cell_id_start = 0;
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static uint16_t cell_id_step = 1;
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static float channel_period_s = 7.2f;
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static uint32_t sim_time_periods = 10;
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static uint32_t cfi = 1;
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static srslte::channel::args_t channel_args_base;
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// Constant
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static const srslte_tm_t transmission_mode = SRSLTE_TM1;
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int work_enb(srslte_enb_dl_t* enb_dl,
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srslte_dl_sf_cfg_t* dl_sf,
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srslte_dci_cfg_t* dci_cfg,
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srslte_dci_dl_t* dci,
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srslte_softbuffer_tx_t** softbuffer_tx,
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uint8_t** data_tx)
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{
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int ret = SRSLTE_ERROR;
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srslte_enb_dl_put_base(enb_dl, dl_sf);
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// Put PDSCH only if required
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if (dci && dci_cfg && data_tx && softbuffer_tx) {
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if (srslte_enb_dl_put_pdcch_dl(enb_dl, dci_cfg, dci)) {
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ERROR("Error putting PDCCH sf_idx=%d\n", dl_sf->tti);
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goto quit;
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}
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// Create pdsch config
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srslte_pdsch_cfg_t pdsch_cfg;
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if (srslte_ra_dl_dci_to_grant(&enb_dl->cell, dl_sf, transmission_mode, false, dci, &pdsch_cfg.grant)) {
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ERROR("Computing DL grant sf_idx=%d\n", dl_sf->tti);
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goto quit;
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}
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char str[512];
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srslte_dci_dl_info(dci, str, 512);
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INFO("eNb PDCCH: rnti=0x%x, %s\n", pdsch_rnti, str);
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for (uint32_t i = 0; i < SRSLTE_MAX_CODEWORDS; i++) {
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pdsch_cfg.softbuffers.tx[i] = softbuffer_tx[i];
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}
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// Enable power allocation
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pdsch_cfg.power_scale = true;
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pdsch_cfg.p_a = 0.0f; // 0 dB
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pdsch_cfg.p_b = (transmission_mode > SRSLTE_TM1) ? 1 : 0; // 0 dB
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pdsch_cfg.rnti = pdsch_rnti;
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pdsch_cfg.meas_time_en = false;
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if (srslte_enb_dl_put_pdsch(enb_dl, &pdsch_cfg, data_tx) < 0) {
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ERROR("Error putting PDSCH sf_idx=%d\n", dl_sf->tti);
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goto quit;
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}
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srslte_pdsch_tx_info(&pdsch_cfg, str, 512);
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INFO("eNb PDSCH: rnti=0x%x, %s\n", pdsch_rnti, str);
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}
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srslte_enb_dl_gen_signal(enb_dl);
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ret = SRSLTE_SUCCESS;
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quit:
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return ret;
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}
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class test_enb
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{
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private:
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srslte_enb_dl_t enb_dl;
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srslte::channel_ptr channel;
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cf_t* signal_buffer[SRSLTE_MAX_PORTS] = {};
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public:
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test_enb(const srslte_cell_t& cell, const srslte::channel::args_t& channel_args)
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{
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channel = srslte::channel_ptr(new srslte::channel(channel_args, cell_base.nof_ports));
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channel->set_srate(srslte_sampling_freq_hz(cell.nof_prb));
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// Allocate buffer for eNb
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for (uint32_t i = 0; i < cell_base.nof_ports; i++) {
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signal_buffer[i] = (cf_t*)srslte_vec_malloc(sizeof(cf_t) * SRSLTE_SF_LEN_PRB(cell_base.nof_prb));
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if (!signal_buffer[i]) {
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ERROR("Error allocating buffer\n");
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}
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}
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if (srslte_enb_dl_init(&enb_dl, signal_buffer, cell.nof_prb)) {
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ERROR("Error initiating eNb downlink\n");
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}
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if (srslte_enb_dl_set_cell(&enb_dl, cell)) {
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ERROR("Error setting eNb DL cell\n");
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}
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if (srslte_enb_dl_add_rnti(&enb_dl, pdsch_rnti)) {
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ERROR("Error adding RNTI\n");
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}
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}
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int work(srslte_dl_sf_cfg_t* dl_sf,
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srslte_dci_cfg_t* dci_cfg,
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srslte_dci_dl_t* dci,
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srslte_softbuffer_tx_t** softbuffer_tx,
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uint8_t** data_tx,
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cf_t* baseband_buffer,
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const srslte_timestamp_t& ts)
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{
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int ret = SRSLTE_ERROR;
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uint32_t sf_len = SRSLTE_SF_LEN_PRB(enb_dl.cell.nof_prb);
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srslte_enb_dl_put_base(&enb_dl, dl_sf);
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// Put PDSCH only if it is required
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if (dci && dci_cfg && softbuffer_tx && data_tx) {
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if (srslte_enb_dl_put_pdcch_dl(&enb_dl, dci_cfg, dci)) {
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ERROR("Error putting PDCCH sf_idx=%d\n", dl_sf->tti);
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goto quit;
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}
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// Create pdsch config
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srslte_pdsch_cfg_t pdsch_cfg;
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if (srslte_ra_dl_dci_to_grant(&enb_dl.cell, dl_sf, transmission_mode, false, dci, &pdsch_cfg.grant)) {
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ERROR("Computing DL grant sf_idx=%d\n", dl_sf->tti);
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goto quit;
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}
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char str[512];
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srslte_dci_dl_info(dci, str, 512);
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INFO("eNb PDCCH: rnti=0x%x, %s\n", pdsch_rnti, str);
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for (uint32_t i = 0; i < SRSLTE_MAX_CODEWORDS; i++) {
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pdsch_cfg.softbuffers.tx[i] = softbuffer_tx[i];
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}
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// Enable power allocation
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pdsch_cfg.power_scale = true;
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pdsch_cfg.p_a = 0.0f; // 0 dB
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pdsch_cfg.p_b = (transmission_mode > SRSLTE_TM1) ? 1 : 0; // 0 dB
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pdsch_cfg.rnti = pdsch_rnti;
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pdsch_cfg.meas_time_en = false;
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if (srslte_enb_dl_put_pdsch(&enb_dl, &pdsch_cfg, data_tx) < 0) {
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ERROR("Error putting PDSCH sf_idx=%d\n", dl_sf->tti);
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goto quit;
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}
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srslte_pdsch_tx_info(&pdsch_cfg, str, 512);
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INFO("eNb PDSCH: rnti=0x%x, %s\n", pdsch_rnti, str);
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}
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srslte_enb_dl_gen_signal(&enb_dl);
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// Apply channel
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channel->run(signal_buffer, signal_buffer, sf_len, ts);
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// Add to baseband
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for (uint32_t i = 1; i < enb_dl.cell.nof_ports; i++) {
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srslte_vec_sum_ccc(signal_buffer[0], signal_buffer[i], signal_buffer[0], sf_len);
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}
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srslte_vec_sum_ccc(signal_buffer[0], baseband_buffer, baseband_buffer, sf_len);
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ret = SRSLTE_SUCCESS;
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quit:
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return ret;
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}
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~test_enb()
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{
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for (uint32_t i = 0; i < enb_dl.cell.nof_ports; i++) {
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if (signal_buffer[i]) {
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free(signal_buffer[i]);
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signal_buffer[i] = nullptr;
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}
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}
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srslte_enb_dl_free(&enb_dl);
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}
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};
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class dummy_rrc : public srsue::rrc_interface_phy_lte
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{
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public:
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void in_sync() override {}
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void out_of_sync() override {}
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void new_phy_meas(float rsrp, float rsrq, uint32_t tti, int earfcn, int pci) override
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{
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printf("[new_phy_meas] tti=%d earfcn=%d; pci=%d; rsrp=%+.1f; rsrq=%+.1f;\n", tti, earfcn, pci, rsrp, rsrq);
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}
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};
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int main(int argc, char** argv)
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{
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auto baseband_buffer = (cf_t*)srslte_vec_malloc(sizeof(cf_t) * SRSLTE_SF_LEN_MAX);
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std::vector<std::unique_ptr<test_enb> > test_enb_v;
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srslte_timestamp_t ts = {};
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srsue::scell::intra_measure intra_measure;
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srslte::log_filter logger("intra_measure");
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dummy_rrc rrc;
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srsue::phy_common common(1);
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srsue::phy_args_t phy_args;
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common.args = &phy_args;
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phy_args.estimator_fil_auto = false;
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phy_args.estimator_fil_order = 4;
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phy_args.estimator_fil_stddev = 1.0f;
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phy_args.sic_pss_enabled = false;
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phy_args.intra_freq_meas_len_ms = 20;
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phy_args.intra_freq_meas_period_ms = 200;
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intra_measure.init(&common, &rrc, &logger);
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intra_measure.set_primay_cell(0, cell_base);
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intra_measure.add_cell(cell_id_start);
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for (uint32_t enb_idx = 0; enb_idx < nof_enb; enb_idx++) {
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// Initialise cell
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srslte_cell_t cell = cell_base;
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cell.id = cell_id_start + enb_idx * cell_id_step;
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// Initialise channel and push back
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srslte::channel::args_t channel_args;
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channel_args.enable = true;
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channel_args.hst_enable = true;
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channel_args.hst_init_time_s = 0.0f; //(float) channel_period_s / (float) nof_enb * enb_idx;
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channel_args.hst_period_s = 7.2f; //(float) channel_period_s;
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channel_args.hst_fd_hz = 750.0f;
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channel_args.delay_enable = enb_idx != 0;
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channel_args.delay_min_us = 10.0;
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channel_args.delay_max_us = 300.0;
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channel_args.delay_period_s = channel_period_s;
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test_enb_v.push_back(std::unique_ptr<test_enb>(new test_enb(cell, channel_args)));
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}
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for (uint32_t period = 0; period < sim_time_periods; period++) {
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for (uint32_t k = 0, sf_idx = 0; k < channel_period_s * 1000; k++, sf_idx++) {
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srslte_dl_sf_cfg_t sf_cfg_dl = {};
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sf_cfg_dl.tti = sf_idx % 10;
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sf_cfg_dl.cfi = cfi;
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sf_cfg_dl.sf_type = SRSLTE_SF_NORM;
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// Clean buffer
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bzero(baseband_buffer, sizeof(cf_t) * SRSLTE_SF_LEN_MAX);
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for (auto& enb : test_enb_v) {
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enb->work(&sf_cfg_dl, nullptr, nullptr, nullptr, nullptr, baseband_buffer, ts);
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}
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srslte_timestamp_add(&ts, 0, 0.001f);
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intra_measure.write(k, baseband_buffer, SRSLTE_SF_LEN_PRB(cell_base.nof_prb));
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if (k % 1000 == 0) {
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printf("Done %.1f%%\n", (double)k * 100.0 / ((double)sim_time_periods * channel_period_s * 1000.0));
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}
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}
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}
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intra_measure.stop();
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srslte_dft_exit();
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}
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