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/*! \file PHY/NR_TRANSPORT/nr_ulsch.h
* \brief functions used for PUSCH/ULSCH physical and transport channels for gNB
* \author Ahmed Hussein
* \date 2019
* \version 0.1
* \company Fraunhofer IIS
* \email: ahmed.hussein@iis.fraunhofer.de
* \note
* \warning
*/

#include "PHY/defs_gNB.h"

void free_gNB_ulsch(NR_gNB_ULSCH_t **ulsch,uint8_t N_RB_UL);

NR_gNB_ULSCH_t *new_gNB_ulsch(uint8_t max_ldpc_iterations,uint16_t N_RB_UL, uint8_t abstraction_flag);


/*! \brief Perform PUSCH decoding. TS 38.212 V15.4.0 subclause 6.2
  @param phy_vars_gNB, Pointer to PHY data structure for gNB
  @param UE_id, ID of UE transmitting this PUSCH
  @param ulsch_llr, Pointer to received llr in ulsch
  @param frame_parms, Pointer to frame descriptor structure
  @param nb_symb_sch, number of symbols used in the uplink shared channel
  @param nb_re_dmrs, number of DMRS resource elements in one RB
  @param nr_tti_rx, current received TTI
  @param harq_pid, harq process id
  @param is_crnti
*/

uint32_t nr_ulsch_decoding(PHY_VARS_gNB *phy_vars_gNB,
                           uint8_t UE_id,
                           short *ulsch_llr,
                           NR_DL_FRAME_PARMS *frame_parms,
                           nfapi_nr_pusch_pdu_t *pusch_pdu,
                           uint32_t frame,
                           uint8_t nr_tti_rx,
                           uint8_t harq_pid,
                           uint32_t G);


/*! \brief Perform PUSCH unscrambling. TS 38.211 V15.4.0 subclause 6.3.1.1
  @param llr, Pointer to llr bits
  @param size, length of llr bits
  @param q, codeword index (0,1)
  @param Nid, cell id
  @param n_RNTI, CRNTI
*/

void nr_ulsch_unscrambling(int16_t* llr,
                         uint32_t size,
                         uint8_t q,
                         uint32_t Nid,
                         uint32_t n_RNTI);


void nr_ulsch_procedures(PHY_VARS_gNB *gNB,
                         int frame_rx,
                         int slot_rx,
                         int UE_id,
                         uint8_t harq_pid);
int16_t find_nr_ulsch(uint16_t rnti, PHY_VARS_gNB *gNB,find_type_t type);
