Merge branch 'next' into novolk

srslte/include/srslte/phch/prach.h

@@ -65,6 +65,7 @@ typedef struct SRSLTE_API {
   uint32_t N_cs;  // Cyclic shift size
   uint32_t N_seq; // Preamble length
   float    T_seq; // Preamble length in seconds
+  float    T_tot; // Total sequence length in seconds
   uint32_t N_cp;  // Cyclic prefix length
 
   // Generated tables

srslte/include/srslte/utils/vector.h

@@ -163,7 +163,7 @@ SRSLTE_API void srslte_vec_max_fff(float *x, float *y, float *z, uint32_t len);
 
 /* quantify vector of floats or int16 and convert to uint8_t */
 SRSLTE_API void srslte_vec_quant_fuc(float *in, uint8_t *out, float gain, float offset, float clip, uint32_t len);
-SRSLTE_API void srslte_vec_quant_suc(int16_t *in, uint8_t *out, int16_t norm, int16_t offset, int16_t clip, uint32_t len); 
+SRSLTE_API void srslte_vec_quant_suc(int16_t *in, uint8_t *out, float gain, int16_t offset, int16_t clip, uint32_t len); 
 
 /* magnitude of each vector element */
 SRSLTE_API void srslte_vec_abs_cf(cf_t *x, float *abs, uint32_t len);

srslte/lib/common/phy_common.c

@@ -407,7 +407,7 @@ struct lte_band lte_bands[SRSLTE_NOF_LTE_BANDS] = {
     {30, 2350, 9770, 27660, 45, SRSLTE_BAND_GEO_AREA_NAR},
     {31, 462.5, 9870, 27760, 10, SRSLTE_BAND_GEO_AREA_CALA},
     {32, 1452, 9920, 0, 0, SRSLTE_BAND_GEO_AREA_EMEA},
-    {64, 0,    10359, 10359, 0, SRSLTE_BAND_GEO_AREA_ALL},
+    {64, 0,    10359, 27809, 0, SRSLTE_BAND_GEO_AREA_ALL},
     {65, 2110, 65536, 131072, 90, SRSLTE_BAND_GEO_AREA_ALL},
     {66, 2110, 66436, 131972, 90, SRSLTE_BAND_GEO_AREA_NAR},
     {67, 738, 67336, 0, 0, SRSLTE_BAND_GEO_AREA_EMEA},
@@ -441,7 +441,7 @@ float get_fd(struct lte_band *band, uint32_t dl_earfcn) {
 
 float get_fu(struct lte_band *band, uint32_t ul_earfcn) {
   if (ul_earfcn >= band->ul_earfcn_offset) {
-    return band->fd_low_mhz + band->duplex_mhz + 0.1*(ul_earfcn - band->ul_earfcn_offset);    
+    return band->fd_low_mhz - band->duplex_mhz + 0.1*(ul_earfcn - band->ul_earfcn_offset);    
   } else {
     return 0.0;
   }
@@ -478,7 +478,7 @@ float srslte_band_fu(uint32_t ul_earfcn) {
     fprintf(stderr, "Invalid UL_EARFCN=%d\n", ul_earfcn);
   }
   i--;
-  while(i > 0 && lte_bands[i].dl_earfcn_offset>ul_earfcn) {
+  while(i > 0 && (lte_bands[i].ul_earfcn_offset>ul_earfcn || lte_bands[i].ul_earfcn_offset == 0)) {
     i--;
   }
   return get_fu(&lte_bands[i], ul_earfcn);
@@ -493,7 +493,7 @@ uint32_t srslte_band_ul_earfcn(uint32_t dl_earfcn) {
   while(i > 0 && lte_bands[i].dl_earfcn_offset>dl_earfcn) {
     i--;
   }
-  return lte_bands[i].ul_earfcn_offset + (lte_bands[i].dl_earfcn_offset-dl_earfcn); 
+  return lte_bands[i].ul_earfcn_offset + (dl_earfcn-lte_bands[i].dl_earfcn_offset); 
 }
 
 int srslte_band_get_fd_band_all(uint32_t band, srslte_earfcn_t *earfcn, uint32_t max_elems) {

srslte/lib/fec/viterbi.c

@@ -287,11 +287,10 @@ int srslte_viterbi_decode_s(srslte_viterbi_t *q, int16_t *symbols, uint8_t *data
   int16_t max = -INT16_MAX; 
   for (int i=0;i<len;i++) {
     if (abs(symbols[i]) > max) {
-      max = symbols[i];
+      max = abs(symbols[i]);
     }
   }
-  
-  srslte_vec_quant_suc(symbols, q->symbols_uc, q->gain_quant/max, 127, 255, len);    
+  srslte_vec_quant_suc(symbols, q->symbols_uc, (float) q->gain_quant/max, 127, 255, len);    
   return srslte_viterbi_decode_uc(q, q->symbols_uc, data, frame_length);    
 }
 

srslte/lib/phch/prach.c

@@ -461,6 +461,7 @@ int srslte_prach_init(srslte_prach_t *p,
     p->N_seq = prach_Tseq[p->f]*p->N_ifft_ul/2048;
     p->N_cp  = prach_Tcp[p->f]*p->N_ifft_ul/2048;
     p->T_seq = prach_Tseq[p->f]*SRSLTE_LTE_TS;
+    p->T_tot = (prach_Tseq[p->f]+prach_Tcp[p->f])*SRSLTE_LTE_TS;
     
     ret = SRSLTE_SUCCESS;
   } else {

srslte/lib/phch/ra.c

@@ -167,8 +167,8 @@ int srslte_ra_ul_dci_to_grant_prb_allocation(srslte_ra_ul_dci_t *dci, srslte_ra_
     grant->freq_hopping = 1;
   }
   
-  if (grant->n_prb[0] + grant->L_prb < nof_prb && 
-      grant->n_prb[1] + grant->L_prb < nof_prb) 
+  if (grant->n_prb[0] + grant->L_prb <= nof_prb && 
+      grant->n_prb[1] + grant->L_prb <= nof_prb) 
   {
     return SRSLTE_SUCCESS; 
   } else {
@@ -252,6 +252,7 @@ int srslte_ra_ul_dci_to_grant(srslte_ra_ul_dci_t *dci, uint32_t nof_prb, uint32_
       return SRSLTE_ERROR; 
     }
   } else {
+    printf("Error computing UL PRB allocation\n");
     return SRSLTE_ERROR; 
   }
   return SRSLTE_SUCCESS;

srslte/lib/ue/ue_dl.c

@@ -394,9 +394,11 @@ static int dci_blind_search(srslte_ue_dl_t *q, dci_blind_search_t *search_space,
         // If searching for Format1A but found Format0 save it for later 
         if (dci_msg->format == SRSLTE_DCI_FORMAT0 && search_space->format == SRSLTE_DCI_FORMAT1A) 
         {
-          q->pending_ul_dci_rnti = crc_rem; 
-          memcpy(&q->pending_ul_dci_msg, dci_msg, sizeof(srslte_dci_msg_t));          
-          memcpy(&q->last_location_ul, &search_space->loc[i], sizeof(srslte_dci_location_t));          
+          if (!q->pending_ul_dci_rnti) {
+            q->pending_ul_dci_rnti = crc_rem; 
+            memcpy(&q->pending_ul_dci_msg, dci_msg, sizeof(srslte_dci_msg_t));          
+            memcpy(&q->last_location_ul, &search_space->loc[i], sizeof(srslte_dci_location_t));          
+          }
         // Else if we found it, save location and leave
         } else if (dci_msg->format == search_space->format) {
           ret = 1; 

srslte/lib/utils/vector.c

@@ -714,12 +714,12 @@ void srslte_vec_quant_fuc(float *in, uint8_t *out, float gain, float offset, flo
   }
 }
 
-void srslte_vec_quant_suc(int16_t *in, uint8_t *out, int16_t norm, int16_t offset, int16_t clip, uint32_t len) {
+void srslte_vec_quant_suc(int16_t *in, uint8_t *out, float gain, int16_t offset, int16_t clip, uint32_t len) {
   int i;
   int16_t tmp;
   
   for (i=0;i<len;i++) {
-    tmp = (int16_t) (offset + in[i]/norm);
+    tmp = (int16_t) (offset + in[i]*gain);
     if (tmp < 0)
       tmp = 0;
     if (tmp > clip)