mirror of https://github.com/PentHertz/srsLTE.git
91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsUE library.
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*
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* srsUE 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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* srsUE 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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#ifndef UEPRACH_H
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#define UEPRACH_H
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#include <string.h>
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#include "srslte/srslte.h"
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#include "srslte/radio/radio.h"
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#include "srslte/common/log.h"
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#include "srslte/interfaces/ue_interfaces.h"
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namespace srsue {
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class prach {
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public:
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prach() {
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bzero(&prach_obj, sizeof(srslte_prach_t));
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bzero(&cell, sizeof(srslte_cell_t));
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bzero(&cfo_h, sizeof(srslte_cfo_t));
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args = NULL;
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config = NULL;
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transmitted_tti = 0;
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target_power_dbm = 0;
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mem_initiated = false;
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cell_initiated = false;
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signal_buffer = NULL;
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}
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~prach();
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void init(LIBLTE_RRC_PRACH_CONFIG_SIB_STRUCT *config, uint32_t max_prb, phy_args_t *args, srslte::log *log_h);
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bool set_cell(srslte_cell_t cell);
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bool prepare_to_send(uint32_t preamble_idx, int allowed_subframe = -1, float target_power_dbm = -1);
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bool is_ready_to_send(uint32_t current_tti);
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bool is_pending();
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int tx_tti();
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void send(srslte::radio* radio_handler, float cfo, float pathloss, srslte_timestamp_t rx_time);
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float get_p0_preamble();
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static const uint32_t tx_advance_sf = 4; // Number of subframes to advance transmission
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private:
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LIBLTE_RRC_PRACH_CONFIG_SIB_STRUCT *config;
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phy_args_t *args;
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srslte::log *log_h;
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int preamble_idx;
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int allowed_subframe;
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bool mem_initiated;
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bool cell_initiated;
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uint32_t len;
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cf_t *buffer[64];
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srslte_prach_t prach_obj;
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int transmitted_tti;
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srslte_cell_t cell;
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cf_t *signal_buffer;
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srslte_cfo_t cfo_h;
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float target_power_dbm;
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};
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} // namespace srsue
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#endif // UEPRACH_H
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