remove a frame param useless attribute

nfapi/oai_integration/nfapi_pnf.c

@@ -879,7 +879,6 @@ int config_request(nfapi_pnf_config_t *config, nfapi_pnf_phy_config_t *phy, nfap
 
   if (req->sch_config.physical_cell_id.tl.tag == NFAPI_SCH_CONFIG_PHYSICAL_CELL_ID_TAG) {
     fp->Nid_cell = req->sch_config.physical_cell_id.value;
-    fp->nushift = fp->Nid_cell%6;
     num_tlv++;
   }
 
@@ -1049,8 +1048,7 @@ int nr_config_request(nfapi_pnf_config_t *config, nfapi_pnf_phy_config_t *phy, n
   }
 
   if (req->cell_config.phy_cell_id.tl.tag == NFAPI_NR_CONFIG_PHY_CELL_ID_TAG) {
-    fp->Nid_cell = req->cell_config.phy_cell_id.value; //sch_config.physical_cell_id.value;
-    fp->nushift = fp->Nid_cell%6;
+    fp->Nid_cell = req->cell_config.phy_cell_id.value; // sch_config.physical_cell_id.value;
     num_tlv++;
   }
 

openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c

@@ -138,8 +138,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
   c16_t **ul_ch_estimates = (c16_t **)pusch_vars->ul_ch_estimates;
   const int symbolSize = gNB->frame_parms.ofdm_symbol_size;
   const int soffset = (Ns&3)*gNB->frame_parms.symbols_per_slot*symbolSize;
-  const int nushift = (p>>1)&1;
-  gNB->frame_parms.nushift = nushift;
+  const int nushift = (p >> 1) & 1;
   int ch_offset     = symbolSize*symbol;
   const int symbol_offset = symbolSize*symbol;
 

openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c

@@ -635,18 +635,13 @@ int nr_pbch_dmrs_correlation(PHY_VARS_NR_UE *ue,
                              c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP])
 {
   int pilot[200] __attribute__((aligned(16)));
-  unsigned short k;
   unsigned int pilot_cnt;
   int16_t ch[2],*pil,*rxF;
   int symbol_offset;
 
-
-  uint8_t nushift;
   uint8_t ssb_index=current_ssb->i_ssb;
   uint8_t n_hf=current_ssb->n_hf;
 
-  nushift =  ue->frame_parms.Nid_cell%4;
-  ue->frame_parms.nushift = nushift;
   unsigned int  ssb_offset = ue->frame_parms.first_carrier_offset + ue->frame_parms.ssb_start_subcarrier;
   if (ssb_offset>= ue->frame_parms.ofdm_symbol_size) ssb_offset-=ue->frame_parms.ofdm_symbol_size;
 
@@ -656,8 +651,7 @@ int nr_pbch_dmrs_correlation(PHY_VARS_NR_UE *ue,
 
   symbol_offset = ue->frame_parms.ofdm_symbol_size*symbol;
 
-
-  k = nushift;
+  unsigned int k = ue->frame_parms.Nid_cell % 4;
 
 #ifdef DEBUG_PBCH
   printf("PBCH DMRS Correlation : gNB_id %d , OFDM size %d, Ncp=%d, Ns=%d, k=%d symbol %d\n", proc->gNB_id, ue->frame_parms.ofdm_symbol_size, ue->frame_parms.Ncp, Ns, k, symbol);
@@ -805,8 +799,7 @@ int nr_pbch_channel_estimation(PHY_VARS_NR_UE *ue,
   //int slot_pbch;
 
   uint8_t nushift;
-  nushift =  ue->frame_parms.Nid_cell%4;
-  ue->frame_parms.nushift = nushift;
+  nushift = ue->frame_parms.Nid_cell % 4;
   unsigned int  ssb_offset = ue->frame_parms.first_carrier_offset + ue->frame_parms.ssb_start_subcarrier;
   if (ssb_offset>= ue->frame_parms.ofdm_symbol_size) ssb_offset-=ue->frame_parms.ofdm_symbol_size;
 
@@ -1707,12 +1700,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
   uint8_t nushift = 0;
   if (config_type == NFAPI_NR_DMRS_TYPE1) {
     nushift = (p >> 1) & 1;
-    if (p < 4)
-      ue->frame_parms.nushift = nushift;
   } else { // NFAPI_NR_DMRS_TYPE2
     nushift = delta;
-    if (p < 6)
-      ue->frame_parms.nushift = nushift;
   }
 
   for (int aarx = 0; aarx < ue->frame_parms.nb_antennas_rx; aarx++) {

openair1/PHY/NR_UE_TRANSPORT/nr_pbch.c

@@ -57,10 +57,11 @@ static uint16_t nr_pbch_extract(uint32_t rxdataF_sz,
                                 struct complex16 dl_ch_estimates_ext[][PBCH_MAX_RE_PER_SYMBOL],
                                 uint32_t symbol,
                                 uint32_t s_offset,
-                                NR_DL_FRAME_PARMS *frame_parms) {
+                                NR_DL_FRAME_PARMS *frame_parms,
+                                int nushiftmod4)
+{
   uint16_t rb;
-  uint8_t i,j,aarx;
-  int nushiftmod4 = frame_parms->nushift;
+  uint8_t i, j, aarx;
   AssertFatal(symbol>=1 && symbol<5,
               "symbol %d illegal for PBCH extraction\n",
               symbol);
@@ -395,12 +396,12 @@ int nr_rx_pbch(PHY_VARS_NR_UE *ue,
 {
   int max_h=0;
   int symbol;
-  //uint8_t pbch_a[64];
-  //FT ?? cppcheck doesn't like pbch_a allocation because of line 525..and i don't get what this variable is for..
-  //uint8_t *pbch_a = malloc(sizeof(uint8_t) * NR_POLAR_PBCH_PAYLOAD_BITS);
-  uint8_t nushift;
-  uint16_t M;
+  // uint8_t pbch_a[64];
+  // FT ?? cppcheck doesn't like pbch_a allocation because of line 525..and i don't get what this variable is for..
+  // uint8_t *pbch_a = malloc(sizeof(uint8_t) * NR_POLAR_PBCH_PAYLOAD_BITS);
   uint8_t Lmax=frame_parms->Lmax;
+  int M = NR_POLAR_PBCH_E;
+  int nushift = (Lmax == 4) ? i_ssb & 3 : i_ssb & 7;
   //uint16_t crc;
   //unsigned short idx_demod =0;
   uint32_t decoderState=0;
@@ -440,7 +441,8 @@ int nr_rx_pbch(PHY_VARS_NR_UE *ue,
                     dl_ch_estimates_ext,
                     symbol,
                     symbol_offset,
-                    frame_parms);
+                    frame_parms,
+                    nushift);
 #ifdef DEBUG_PBCH
     LOG_I(PHY,"[PHY] PBCH Symbol %d ofdm size %d\n",symbol, frame_parms->ofdm_symbol_size );
     LOG_I(PHY,"[PHY] PBCH starting channel_level\n");
@@ -496,9 +498,7 @@ int nr_rx_pbch(PHY_VARS_NR_UE *ue,
     printf("pbch rx llr %d\n",*(pbch_e_rx+cnt));
   
 #endif
-  //un-scrambling
-  M =  NR_POLAR_PBCH_E;
-  nushift = (Lmax==4)? i_ssb&3 : i_ssb&7;
+  // un-scrambling
   uint32_t unscrambling_mask = (Lmax==64)?0x100006D:0x1000041;
   uint32_t pbch_a_interleaved=0;
   uint32_t pbch_a_prime=0;

openair1/PHY/defs_nr_common.h

@@ -229,8 +229,6 @@ struct NR_DL_FRAME_PARMS {
   c16_t timeshift_symbol_rotation[4096*2] __attribute__ ((aligned (16)));
   /// Table used to apply the delay compensation in UL
   c16_t ul_delay_table[2 * MAX_UL_DELAY_COMP + 1][NR_MAX_OFDM_SYMBOL_SIZE * 2];
-  /// shift of pilot position in one RB
-  uint8_t nushift;
   /// SRS configuration from TS 38.331 RRC
   SRS_NR srs_nr;
   /// Power used by SSB in order to estimate signal strength and path loss

openair1/SIMULATION/NR_PHY/pbchsim.c

@@ -495,7 +495,6 @@ int main(int argc, char **argv)
   frame_parms->nb_antenna_ports_gNB = n_tx;
   frame_parms->N_RB_DL = N_RB_DL;
   frame_parms->Nid_cell = Nid_cell;
-  frame_parms->nushift = Nid_cell%4;
   frame_parms->ssb_type = nr_ssb_type_C;
   frame_parms->freq_range = mu<2 ? nr_FR1 : nr_FR2;
 

openair1/SIMULATION/NR_UE_PHY/unit_tests/src/pss_util_test.c

@@ -234,7 +234,6 @@ int init_test(unsigned char N_tx, unsigned char N_rx, unsigned char transmission
   frame_parms->N_RB_UL              = N_RB_DL;
   frame_parms->Ncp                  = extended_prefix_flag;
   frame_parms->Nid_cell = Nid_cell;
-  frame_parms->nushift              = Nid_cell%6;
   frame_parms->nb_antennas_tx       = N_tx;
   frame_parms->nb_antennas_rx       = N_rx;
   frame_parms->frame_type           = frame_type;