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srsLTE
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srsLTE/srsue/hdr/phy/phch_common.h

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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2015 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of the srsUE library.
*
* srsUE 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.
*
* srsUE 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/.
*
*/
#ifndef SRSUE_PHCH_COMMON_H
#define SRSUE_PHCH_COMMON_H
#define TX_MODE_CONTINUOUS 1
#include <pthread.h>
#include <string.h>
#include <vector>
#include <semaphore.h>
#include "srslte/srslte.h"
#include "srslte/interfaces/ue_interfaces.h"
#include "srslte/radio/radio.h"
#include "srslte/common/log.h"
#include "srslte/common/gen_mch_tables.h"
#include "phy_metrics.h"
namespace srsue {
class chest_feedback_itf
{
public:
virtual void in_sync() = 0;
virtual void out_of_sync() = 0;
virtual void set_cfo(float cfo) = 0;
};
typedef enum{
SUBFRAME_TYPE_REGULAR = 0,
SUBFRAME_TYPE_MBSFN,
SUBFRAME_TYPE_N_ITEMS,
} subframe_type_t;
static const char subframe_type_text[SUBFRAME_TYPE_N_ITEMS][20] = {"Regular", "MBSFN"};
/* Subframe config */
typedef struct {
subframe_type_t sf_type;
uint8_t mbsfn_area_id;
uint8_t non_mbsfn_region_length;
uint8_t mbsfn_mcs;
bool mbsfn_decode;
bool is_mcch;
} subframe_cfg_t;
/* Subclass that manages variables common to all workers */
class phch_common {
public:
/* Common variables used by all phy workers */
phy_interface_rrc::phy_cfg_t *config;
phy_args_t *args;
rrc_interface_phy *rrc;
mac_interface_phy *mac;
srslte_ue_ul_t ue_ul;
/* Power control variables */
float pathloss;
float cur_pathloss;
float p0_preamble;
float cur_radio_power;
float cur_pusch_power;
float avg_rsrp;
float avg_rsrp_cqi;
float avg_rsrp_dbm;
float avg_rsrp_sync_dbm;
float avg_rsrq_db;
float avg_rssi_dbm;
float last_radio_rssi;
float rx_gain_offset;
float avg_snr_db_cqi;
float avg_snr_db_sync;
float avg_noise;
bool pcell_meas_enabled;
uint32_t pcell_report_period;
bool pcell_first_measurement;
// Save last TBS for mcs>28 cases
int last_dl_tbs[2*HARQ_DELAY_MS][SRSLTE_MAX_CODEWORDS];
uint32_t last_dl_tti[2*HARQ_DELAY_MS];
int last_ul_tbs[2*HARQ_DELAY_MS];
uint32_t last_ul_tti[2*HARQ_DELAY_MS];
srslte_mod_t last_ul_mod[2*HARQ_DELAY_MS];
uint32_t last_ul_idx[2*HARQ_DELAY_MS];
uint8_t last_ri;
uint8_t last_pmi;
phch_common(uint32_t max_workers);
~phch_common();
void init(phy_interface_rrc::phy_cfg_t *config,
phy_args_t *args,
srslte::log *_log,
srslte::radio *_radio,
rrc_interface_phy *rrc,
mac_interface_phy *_mac);
/* For RNTI searches, -1 means now or forever */
void set_ul_rnti(srslte_rnti_type_t type, uint16_t rnti_value, int tti_start = -1, int tti_end = -1);
uint16_t get_ul_rnti(uint32_t tti);
srslte_rnti_type_t get_ul_rnti_type();
void set_dl_rnti(srslte_rnti_type_t type, uint16_t rnti_value, int tti_start = -1, int tti_end = -1);
uint16_t get_dl_rnti(uint32_t tti);
srslte_rnti_type_t get_dl_rnti_type();
void set_rar_grant(uint32_t tti, uint8_t grant_payload[SRSLTE_RAR_GRANT_LEN]);
bool get_pending_rar(uint32_t tti, srslte_dci_rar_grant_t *rar_grant = NULL);
void reset_pending_ack(uint32_t tti);
void set_pending_ack(uint32_t tti, uint32_t I_lowest, uint32_t n_dmrs);
bool get_pending_ack(uint32_t tti);
bool get_pending_ack(uint32_t tti, uint32_t *I_lowest, uint32_t *n_dmrs);
bool is_any_pending_ack();
void worker_end(uint32_t tti, bool tx_enable, cf_t *buffer, uint32_t nof_samples, srslte_timestamp_t tx_time);
void set_nof_workers(uint32_t nof_workers);
bool sr_enabled;
int sr_last_tx_tti;
srslte::radio* get_radio();
void set_cell(const srslte_cell_t &c);
uint32_t get_nof_prb();
void set_dl_metrics(const dl_metrics_t &m);
void get_dl_metrics(dl_metrics_t &m);
void set_ul_metrics(const ul_metrics_t &m);
void get_ul_metrics(ul_metrics_t &m);
void set_sync_metrics(const sync_metrics_t &m);
void get_sync_metrics(sync_metrics_t &m);
void reset_ul();
void reset();
// MBSFN helpers
void build_mch_table();
void build_mcch_table();
void set_mcch();
void get_sf_config(subframe_cfg_t *cfg, uint32_t phy_tti);
void set_mch_period_stop(uint32_t stop);
private:
bool have_mtch_stop;
pthread_mutex_t mtch_mutex;
pthread_cond_t mtch_cvar;
std::vector<sem_t> tx_sem;
uint32_t nof_workers;
uint32_t max_workers;
bool is_first_of_burst;
srslte::radio *radio_h;
float cfo;
srslte::log *log_h;
bool ul_rnti_active(uint32_t tti);
bool dl_rnti_active(uint32_t tti);
uint16_t ul_rnti, dl_rnti;
srslte_rnti_type_t ul_rnti_type, dl_rnti_type;
int ul_rnti_start, ul_rnti_end, dl_rnti_start, dl_rnti_end;
float time_adv_sec;
srslte_dci_rar_grant_t rar_grant;
bool rar_grant_pending;
uint32_t rar_grant_tti;
typedef struct {
bool enabled;
uint32_t I_lowest;
uint32_t n_dmrs;
} pending_ack_t;
pending_ack_t pending_ack[TTIMOD_SZ];
bool is_first_tx;
srslte_cell_t cell;
dl_metrics_t dl_metrics;
uint32_t dl_metrics_count;
bool dl_metrics_read;
ul_metrics_t ul_metrics;
uint32_t ul_metrics_count;
bool ul_metrics_read;
sync_metrics_t sync_metrics;
uint32_t sync_metrics_count;
bool sync_metrics_read;
// MBSFN
bool sib13_configured;
bool mcch_configured;
uint32_t mch_period_stop;
uint8_t mch_table[40];
uint8_t mcch_table[10];
bool is_mch_subframe(subframe_cfg_t *cfg, uint32_t phy_tti);
bool is_mcch_subframe(subframe_cfg_t *cfg, uint32_t phy_tti);
};
} // namespace srsue
#endif // SRSUE_PDCH_COMMON_H
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