SRSENB: Added PUSCH TA and EVM measurement. Some more PHY cleanup.

lib/include/srslte/interfaces/enb_interfaces.h

@@ -144,6 +144,16 @@ public:
    */
   virtual int snr_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, float snr_db) = 0;
 
+  /**
+   * PHY callback for giving MAC the Time Aligment information in microseconds of a given RNTI during a TTI processing
+   *
+   * @param tti The measurement was made
+   * @param rnti The UE identifier in the eNb
+   * @param ta_us The actual time alignment in microseconds
+   * @return SRSLTE_SUCCESS if no error occurs, SRSLTE_ERROR* if an error occurs
+   */
+  virtual int ta_info(uint32_t tti, uint16_t rnti, float ta_us) = 0;
+
   /**
    * PHY callback for giving MAC the HARQ DL ACK/NACK feedback information for a given RNTI, TTI, eNb cell/carrier and
    * Transport block.

lib/include/srslte/phy/ch_estimation/chest_ul.h

@@ -53,6 +53,7 @@ typedef struct SRSLTE_API {
   float    snr;
   float    snr_db;
   float    cfo;
+  float    ta_us;
 } srslte_chest_ul_res_t;
 
 typedef struct {

lib/include/srslte/phy/channel/delay.h

@@ -32,7 +32,7 @@ typedef struct {
   uint32_t srate_max_hz;
   uint32_t srate_hz;
   float    delay_us;
-  float    delay_nsamples;
+  uint32_t delay_nsamples;
 
   srslte_ringbuffer_t rb;
   cf_t*               zero_buffer;

lib/include/srslte/phy/modem/evm.h

@@ -25,6 +25,7 @@
 #include <srslte/config.h>
 #include <srslte/phy/phch/ra.h>
 #include <srslte/phy/utils/debug.h>
+#include <srslte/phy/utils/vector.h>
 
 /** @struct srslte_evm_buffer_t
  * This structure carries the necessary temporary data required for calculating the EVM.

lib/include/srslte/phy/modem/modem_table.h

@@ -49,10 +49,6 @@ typedef struct {
   cf_t symbol[2];
 } qam16_packed_t;
 
-typedef struct {
-  cf_t symbol[256];
-} qam256_packed_t;
-
 typedef struct SRSLTE_API {
   cf_t*    symbol_table;   // bit-to-symbol mapping
   uint32_t nsymbols;       // number of modulation symbols

lib/include/srslte/phy/phch/pusch.h

@@ -37,6 +37,7 @@
 #include "srslte/phy/mimo/layermap.h"
 #include "srslte/phy/mimo/precoding.h"
 #include "srslte/phy/modem/demod_soft.h"
+#include "srslte/phy/modem/evm.h"
 #include "srslte/phy/modem/mod.h"
 #include "srslte/phy/phch/dci.h"
 #include "srslte/phy/phch/pusch_cfg.h"
@@ -72,13 +73,16 @@ typedef struct SRSLTE_API {
   void* g;
 
   /* tx & rx objects */
-  srslte_modem_table_t mod[4];
+  srslte_modem_table_t mod[SRSLTE_MOD_NITEMS];
   srslte_sch_t         ul_sch;
 
   // This is to generate the scrambling seq for multiple CRNTIs
   srslte_pusch_user_t** users;
   srslte_sequence_t     tmp_seq;
 
+  // EVM buffer
+  srslte_evm_buffer_t* evm_buffer;
+
 } srslte_pusch_t;
 
 typedef struct SRSLTE_API {
@@ -91,6 +95,7 @@ typedef struct SRSLTE_API {
   srslte_uci_value_t uci;
   bool               crc;
   float              avg_iterations_block;
+  float              evm;
 } srslte_pusch_res_t;
 
 SRSLTE_API int srslte_pusch_init_ue(srslte_pusch_t* q, uint32_t max_prb);
@@ -131,6 +136,10 @@ SRSLTE_API uint32_t srslte_pusch_tx_info(srslte_pusch_cfg_t* cfg,
                                          char*               str,
                                          uint32_t            str_len);
 
-SRSLTE_API uint32_t srslte_pusch_rx_info(srslte_pusch_cfg_t* cfg, srslte_pusch_res_t* res, char* str, uint32_t str_len);
+SRSLTE_API uint32_t srslte_pusch_rx_info(srslte_pusch_cfg_t*    cfg,
+                                         srslte_pusch_res_t*    res,
+                                         srslte_chest_ul_res_t* chest_res,
+                                         char*                  str,
+                                         uint32_t               str_len);
 
 #endif // SRSLTE_PUSCH_H

lib/include/srslte/phy/phch/pusch_cfg.h

@@ -78,6 +78,9 @@ typedef struct SRSLTE_API {
   bool     meas_time_en;
   uint32_t meas_time_value;
 
+  bool meas_ta_en;
+  bool meas_evm_en;
+
 } srslte_pusch_cfg_t;
 
 #endif // SRSLTE_PUSCH_CFG_H

lib/include/srslte/phy/phch/ra_ul.h

@@ -64,6 +64,6 @@ SRSLTE_API int srslte_ra_ul_dci_to_grant(srslte_cell_t*              cell,
 SRSLTE_API void srslte_ra_ul_compute_nof_re(srslte_pusch_grant_t* grant, srslte_cp_t cp, uint32_t N_srs);
 
 /** Others */
-SRSLTE_API uint32_t srslte_ra_ul_info(srslte_pusch_grant_t* grant, char* info_str, uint32_t len);
+SRSLTE_API uint32_t srslte_ra_ul_info(const srslte_pusch_grant_t* grant, char* info_str, uint32_t len);
 
 #endif // SRSLTE_RA_UL_H

lib/src/phy/ch_estimation/chest_ul.c

@@ -293,7 +293,7 @@ int srslte_chest_ul_estimate_pusch(srslte_chest_ul_t*     q,
   }
 
   int nrefs_sym = nof_prb * SRSLTE_NRE;
-  int nrefs_sf  = nrefs_sym * 2;
+  int nrefs_sf  = nrefs_sym * SRSLTE_NOF_SLOTS_PER_SF;
 
   /* Get references from the input signal */
   srslte_refsignal_dmrs_pusch_get(&q->dmrs_signal, cfg, input, q->pilot_recv_signal);
@@ -302,6 +302,21 @@ int srslte_chest_ul_estimate_pusch(srslte_chest_ul_t*     q,
   srslte_vec_prod_conj_ccc(
       q->pilot_recv_signal, q->dmrs_pregen.r[cfg->grant.n_dmrs][sf->tti % 10][nof_prb], q->pilot_estimates, nrefs_sf);
 
+  // Calculate time alignment error
+  float ta_err = 0.0f;
+  if (cfg->meas_ta_en) {
+    for (int i = 0; i < SRSLTE_NOF_SLOTS_PER_SF; i++) {
+      ta_err += srslte_vec_estimate_frequency(&q->pilot_estimates[i * nrefs_sym], nrefs_sym) / SRSLTE_NOF_SLOTS_PER_SF;
+    }
+  }
+
+  // Average and store time aligment error
+  if (isnormal(ta_err)) {
+    res->ta_us = roundf(ta_err / 15e-3 * 10) / 10;
+  } else {
+    res->ta_us = 0.0f;
+  }
+
   if (cfg->grant.n_prb[0] != cfg->grant.n_prb[1]) {
     printf("ERROR: intra-subframe frequency hopping not supported in the estimator!!\n");
   }

lib/src/phy/channel/channel.cc

@@ -198,11 +198,13 @@ void channel::set_srate(uint32_t srate)
       if (delay[i]) {
         srslte_channel_delay_update_srate(delay[i], srate);
       }
-      current_srate = srate;
     }
 
     if (hst) {
       srslte_channel_hst_update_srate(hst, srate);
     }
+
+    // Update sampling rate
+    current_srate = srate;
   }
 }

lib/src/phy/phch/pusch.c

@@ -120,7 +120,7 @@ static int pusch_init(srslte_pusch_t* q, uint32_t max_prb, bool is_ue)
 
     INFO("Init PUSCH: %d PRBs\n", max_prb);
 
-    for (i = 0; i < 4; i++) {
+    for (i = 0; i < SRSLTE_MOD_NITEMS; i++) {
       if (srslte_modem_table_lte(&q->mod[i], modulations[i])) {
         goto clean;
       }
@@ -162,11 +162,18 @@ static int pusch_init(srslte_pusch_t* q, uint32_t max_prb, bool is_ue)
       goto clean;
     }
 
+    // Allocate eNb specific buffers
     if (!q->is_ue) {
       q->ce = srslte_vec_malloc(sizeof(cf_t) * q->max_re);
       if (!q->ce) {
         goto clean;
       }
+
+      q->evm_buffer = srslte_evm_buffer_alloc(6);
+      if (!q->evm_buffer) {
+        ERROR("Allocating EVM buffer\n");
+        goto clean;
+      }
     }
     q->z = srslte_vec_malloc(sizeof(cf_t) * q->max_re);
     if (!q->z) {
@@ -211,7 +218,9 @@ void srslte_pusch_free(srslte_pusch_t* q)
   if (q->z) {
     free(q->z);
   }
-
+  if (q->evm_buffer) {
+    srslte_evm_free(q->evm_buffer);
+  }
   srslte_dft_precoding_free(&q->dft_precoding);
 
   if (q->users) {
@@ -227,7 +236,7 @@ void srslte_pusch_free(srslte_pusch_t* q)
 
   srslte_sequence_free(&q->tmp_seq);
 
-  for (i = 0; i < 4; i++) {
+  for (i = 0; i < SRSLTE_MOD_NITEMS; i++) {
     srslte_modem_table_free(&q->mod[i]);
   }
   srslte_sch_free(&q->ul_sch);
@@ -241,6 +250,11 @@ int srslte_pusch_set_cell(srslte_pusch_t* q, srslte_cell_t cell)
 
   if (q != NULL && srslte_cell_isvalid(&cell)) {
 
+    // Resize EVM buffer, only for eNb
+    if (!q->is_ue && q->evm_buffer) {
+      srslte_evm_buffer_resize(q->evm_buffer, cell.nof_prb);
+    }
+
     q->cell   = cell;
     q->max_re = cell.nof_prb * MAX_PUSCH_RE(cell.cp);
     ret       = SRSLTE_SUCCESS;
@@ -498,6 +512,16 @@ int srslte_pusch_decode(srslte_pusch_t*        q,
       srslte_demod_soft_demodulate_s(cfg->grant.tb.mod, q->d, q->q, cfg->grant.nof_re);
     }
 
+    if (cfg->meas_evm_en && q->evm_buffer) {
+      if (q->llr_is_8bit) {
+        out->evm = srslte_evm_run_b(q->evm_buffer, &q->mod[cfg->grant.tb.mod], q->d, q->q, cfg->grant.tb.nof_bits);
+      } else {
+        out->evm = srslte_evm_run_s(q->evm_buffer, &q->mod[cfg->grant.tb.mod], q->d, q->q, cfg->grant.tb.nof_bits);
+      }
+    } else {
+      out->evm = NAN;
+    }
+
     // Generate scrambling sequence if not pre-generated
     srslte_sequence_t* seq = get_user_sequence(q, cfg->rnti, sf->tti % 10, cfg->grant.tb.nof_bits);
     if (!seq) {
@@ -563,7 +587,11 @@ uint32_t srslte_pusch_tx_info(srslte_pusch_cfg_t* cfg, srslte_uci_value_t* uci_d
   return len;
 }
 
-uint32_t srslte_pusch_rx_info(srslte_pusch_cfg_t* cfg, srslte_pusch_res_t* res, char* str, uint32_t str_len)
+uint32_t srslte_pusch_rx_info(srslte_pusch_cfg_t*    cfg,
+                              srslte_pusch_res_t*    res,
+                              srslte_chest_ul_res_t* chest_res,
+                              char*                  str,
+                              uint32_t               str_len)
 {
 
   uint32_t len = srslte_print_check(str, str_len, 0, "rnti=0x%x", cfg->rnti);
@@ -575,6 +603,18 @@ uint32_t srslte_pusch_rx_info(srslte_pusch_cfg_t* cfg, srslte_pusch_res_t* res,
 
   len += srslte_uci_data_info(&cfg->uci_cfg, &res->uci, &str[len], str_len - len);
 
+  len = srslte_print_check(str, str_len, len, ", snr=%.1f dB", chest_res->snr_db);
+
+  // Append Time Aligment information if available
+  if (cfg->meas_ta_en) {
+    len = srslte_print_check(str, str_len, len, ", ta=%.1f us", chest_res->ta_us);
+  }
+
+  // Append EVM measurement if available
+  if (cfg->meas_evm_en) {
+    len = srslte_print_check(str, str_len, len, ", evm=%.1f %%", res->evm * 100);
+  }
+
   if (cfg->meas_time_en) {
     len = srslte_print_check(str, str_len, len, ", t=%d us", cfg->meas_time_value);
   }

lib/src/phy/phch/ra_ul.c

@@ -319,7 +319,7 @@ int srslte_ra_ul_dci_to_grant(srslte_cell_t*              cell,
   }
 }
 
-uint32_t srslte_ra_ul_info(srslte_pusch_grant_t* grant, char* info_str, uint32_t len)
+uint32_t srslte_ra_ul_info(const srslte_pusch_grant_t* grant, char* info_str, uint32_t len)
 {
   return srslte_print_check(info_str,
                             len,

srsenb/hdr/phy/phy.h

@@ -94,7 +94,7 @@ private:
 
   srslte_prach_cfg_t prach_cfg = {};
 
-  void parse_config(const phy_cfg_t& cfg);
+  void parse_common_config(const phy_cfg_t& cfg);
 };
 
 } // namespace srsenb

srsenb/hdr/phy/phy_common.h

@@ -128,11 +128,8 @@ public:
     return c;
   };
 
-  // Physical Uplink Config common
-  srslte_ul_cfg_t ul_cfg_com = {};
-
-  // Physical Downlink Config common
-  srslte_dl_cfg_t dl_cfg_com = {};
+  // Common Physical Uplink DMRS configuration
+  srslte_refsignal_dmrs_pusch_cfg_t dmrs_pusch_cfg = {};
 
   srslte::radio_interface_phy* radio      = nullptr;
   stack_interface_phy_lte*     stack      = nullptr;

srsenb/hdr/phy/phy_interfaces.h

@@ -53,6 +53,8 @@ struct phy_args_t {
   std::string equalizer_mode      = "mmse";
   float       estimator_fil_w     = 1.0f;
   bool        pregenerate_signals = false;
+  bool        pusch_meas_evm      = true;
+  bool        pusch_meas_ta       = true;
 
   srslte::channel::args_t dl_channel_args;
   srslte::channel::args_t ul_channel_args;

srsenb/hdr/phy/phy_ue_db.h

@@ -91,6 +91,11 @@ private:
    */
   stack_interface_phy_lte* stack = nullptr;
 
+  /**
+   * PHY arguments pointer, used for loading the common UE parameters when a new configuration is set
+   */
+  const phy_args_t* phy_args = {};
+
   /**
    * Cell list
    */
@@ -116,7 +121,7 @@ private:
    *
    * @param rnti identifier of the UE (requires assertion prior to call)
    */
-  inline void _set_config_rnti(uint16_t rnti);
+  inline void _set_common_config_rnti(uint16_t rnti);
 
   /**
    * Gets the SCell index for a given RNTI and a eNb cell/carrier. It returns the SCell index (0 if PCell) if the cc_idx
@@ -134,11 +139,7 @@ public:
    * @param stack_ptr points to the stack (read/write)
    * @param cell_cfg_list_ points to the cell configuration list (read only)
    */
-  void init(stack_interface_phy_lte* stack_ptr, const phy_cell_cfg_list_t& cell_cfg_list_)
-  {
-    stack         = stack_ptr;
-    cell_cfg_list = &cell_cfg_list_;
-  }
+  void init(stack_interface_phy_lte* stack_ptr, const phy_args_t& phy_args_, const phy_cell_cfg_list_t& cell_cfg_list_);
 
   /**
    * Adds or modifies a user in the UE database setting. This function requires the physical layer configuration coming

srsenb/hdr/stack/enb_stack_lte.h

@@ -83,6 +83,7 @@ public:
   {
     return mac.snr_info(tti, rnti, cc_idx, snr_db);
   }
+  int ta_info(uint32_t tti, uint16_t rnti, float ta_us) override { return mac.ta_info(tti, rnti, ta_us); }
   int ack_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t tb_idx, bool ack) final
   {
     return mac.ack_info(tti, rnti, cc_idx, tb_idx, ack);

srsenb/hdr/stack/mac/mac.h

@@ -60,6 +60,7 @@ public:
   int pmi_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t pmi_value) override;
   int cqi_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t cqi_value) override;
   int snr_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, float snr) override;
+  int ta_info(uint32_t tti, uint16_t rnti, float ta_us) override;
   int ack_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t tb_idx, bool ack) override;
   int crc_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t nof_bytes, bool crc_res) override;
 

srsenb/src/phy/cc_worker.cc

@@ -120,7 +120,8 @@ void cc_worker::init(phy_common* phy_, srslte::log* log_h_, uint32_t cc_idx_)
     ERROR("Error initiating ENB UL\n");
     return;
   }
-  if (srslte_enb_ul_set_cell(&enb_ul, cell, &phy->ul_cfg_com.dmrs)) {
+
+  if (srslte_enb_ul_set_cell(&enb_ul, cell, &phy->dmrs_pusch_cfg)) {
     ERROR("Error initiating ENB UL\n");
     return;
   }
@@ -132,7 +133,7 @@ void cc_worker::init(phy_common* phy_, srslte::log* log_h_, uint32_t cc_idx_)
   add_rnti(SRSLTE_PRNTI, false, false);
 
   /* Setup RA-RNTI in PHY */
-  for (int i = 0; i < 10; i++) {
+  for (int i = 0; i < SRSLTE_CRNTI_START; i++) {
     add_rnti(1 + i, false, false);
   }
 
@@ -348,6 +349,7 @@ int cc_worker::decode_pusch(stack_interface_phy_lte::ul_sched_grant_t* grants, u
 
       // Notify MAC of RL status
       if (snr_db >= PUSCH_RL_SNR_DB_TH) {
+        // Notify MAC UL channel quality
         phy->stack->snr_info(ul_sf.tti, rnti, cc_idx, snr_db);
 
         if (grants[i].dci.tb.rv == 0) {
@@ -356,6 +358,12 @@ int cc_worker::decode_pusch(stack_interface_phy_lte::ul_sched_grant_t* grants, u
             phy->stack->rl_failure(rnti);
           } else {
             phy->stack->rl_ok(rnti);
+
+            // Notify MAC of Time Alignment only if it enabled and valid measurement, ignore value otherwise
+            if (ul_cfg.pusch.meas_ta_en and not std::isnan(enb_ul.chest_res.ta_us) and
+                not std::isinf(enb_ul.chest_res.ta_us)) {
+              phy->stack->ta_info(ul_sf.tti, rnti, enb_ul.chest_res.ta_us);
+            }
           }
         }
       }
@@ -372,8 +380,8 @@ int cc_worker::decode_pusch(stack_interface_phy_lte::ul_sched_grant_t* grants, u
 
         // Logging
         char str[512];
-        srslte_pusch_rx_info(&ul_cfg.pusch, &pusch_res, str, 512);
-        Info("PUSCH: cc=%d, %s, snr=%.1f dB\n", cc_idx, str, snr_db);
+        srslte_pusch_rx_info(&ul_cfg.pusch, &pusch_res, &enb_ul.chest_res, str, 512);
+        Info("PUSCH: cc=%d, %s\n", cc_idx, str);
       }
     }
   }

srsenb/src/phy/phy.cc

@@ -59,7 +59,7 @@ phy::~phy()
   stop();
 }
 
-void phy::parse_config(const phy_cfg_t& cfg)
+void phy::parse_common_config(const phy_cfg_t& cfg)
 {
   // PRACH configuration
   prach_cfg.config_idx     = cfg.prach_cnfg.prach_cfg_info.prach_cfg_idx;
@@ -69,36 +69,10 @@ void phy::parse_config(const phy_cfg_t& cfg)
   prach_cfg.freq_offset    = cfg.prach_cnfg.prach_cfg_info.prach_freq_offset;
 
   // DMRS
-  workers_common.ul_cfg_com.dmrs.cyclic_shift        = cfg.pusch_cnfg.ul_ref_sigs_pusch.cyclic_shift;
-  workers_common.ul_cfg_com.dmrs.delta_ss            = cfg.pusch_cnfg.ul_ref_sigs_pusch.group_assign_pusch;
-  workers_common.ul_cfg_com.dmrs.group_hopping_en    = cfg.pusch_cnfg.ul_ref_sigs_pusch.group_hop_enabled;
-  workers_common.ul_cfg_com.dmrs.sequence_hopping_en = cfg.pusch_cnfg.ul_ref_sigs_pusch.seq_hop_enabled;
-
-  // Hopping
-  workers_common.ul_cfg_com.hopping.hop_mode =
-      cfg.pusch_cnfg.pusch_cfg_basic.hop_mode ==
-              asn1::rrc::pusch_cfg_common_s::pusch_cfg_basic_s_::hop_mode_e_::intra_and_inter_sub_frame
-          ? srslte_pusch_hopping_cfg_t::SRSLTE_PUSCH_HOP_MODE_INTRA_SF
-          : srslte_pusch_hopping_cfg_t::SRSLTE_PUSCH_HOP_MODE_INTER_SF;
-
-  workers_common.ul_cfg_com.hopping.n_sb             = cfg.pusch_cnfg.pusch_cfg_basic.n_sb;
-  workers_common.ul_cfg_com.hopping.hopping_offset   = cfg.pusch_cnfg.pusch_cfg_basic.pusch_hop_offset;
-  workers_common.ul_cfg_com.pusch.max_nof_iterations = workers_common.params.pusch_max_its;
-  workers_common.ul_cfg_com.pusch.csi_enable         = false;
-  workers_common.ul_cfg_com.pusch.meas_time_en       = true;
-
-  // PUCCH
-  workers_common.ul_cfg_com.pucch.delta_pucch_shift = cfg.pucch_cnfg.delta_pucch_shift.to_number();
-  workers_common.ul_cfg_com.pucch.N_cs              = cfg.pucch_cnfg.ncs_an;
-  workers_common.ul_cfg_com.pucch.n_rb_2            = cfg.pucch_cnfg.nrb_cqi;
-  workers_common.ul_cfg_com.pucch.N_pucch_1         = cfg.pucch_cnfg.n1_pucch_an;
-  workers_common.ul_cfg_com.pucch.threshold_format1 = SRSLTE_PUCCH_DEFAULT_THRESHOLD_FORMAT1;
-
-  // PDSCH configuration
-  workers_common.dl_cfg_com.tm                 = SRSLTE_TM1;
-  workers_common.dl_cfg_com.pdsch.rs_power     = cfg.pdsch_cnfg.ref_sig_pwr;
-  workers_common.dl_cfg_com.pdsch.p_b          = cfg.pdsch_cnfg.p_b;
-  workers_common.dl_cfg_com.pdsch.meas_time_en = true;
+  workers_common.dmrs_pusch_cfg.cyclic_shift        = cfg.pusch_cnfg.ul_ref_sigs_pusch.cyclic_shift;
+  workers_common.dmrs_pusch_cfg.delta_ss            = cfg.pusch_cnfg.ul_ref_sigs_pusch.group_assign_pusch;
+  workers_common.dmrs_pusch_cfg.group_hopping_en    = cfg.pusch_cnfg.ul_ref_sigs_pusch.group_hop_enabled;
+  workers_common.dmrs_pusch_cfg.sequence_hopping_en = cfg.pusch_cnfg.ul_ref_sigs_pusch.seq_hop_enabled;
 }
 
 int phy::init(const phy_args_t&            args,
@@ -139,7 +113,7 @@ int phy::init(const phy_args_t&            args,
 
   workers_common.init(cfg.phy_cell_cfg, radio, stack_);
 
-  parse_config(cfg);
+  parse_common_config(cfg);
 
   // Add workers to workers pool and start threads
   for (uint32_t i = 0; i < nof_workers; i++) {

srsenb/src/phy/phy_common.cc

@@ -85,8 +85,8 @@ bool phy_common::init(const phy_cell_cfg_list_t&   cell_list_,
     q.resize(cell_list.size());
   }
 
-  // Set UE PHY data-base stack
-  ue_db.init(stack, cell_list);
+  // Set UE PHY data-base stack and configuration
+  ue_db.init(stack, params, cell_list);
 
   reset();
   return true;

srsenb/src/phy/phy_ue_db.cc

@@ -23,6 +23,15 @@
 
 using namespace srsenb;
 
+void phy_ue_db::init(stack_interface_phy_lte*   stack_ptr,
+                     const phy_args_t&          phy_args_,
+                     const phy_cell_cfg_list_t& cell_cfg_list_)
+{
+  stack         = stack_ptr;
+  phy_args      = &phy_args_;
+  cell_cfg_list = &cell_cfg_list_;
+}
+
 inline void phy_ue_db::_add_rnti(uint16_t rnti)
 {
   // Private function not mutexed
@@ -42,7 +51,7 @@ inline void phy_ue_db::_add_rnti(uint16_t rnti)
   ue.scell_info[0].phy_cfg.set_defaults();
 
   // Set constant configuration fields
-  _set_config_rnti(rnti);
+  _set_common_config_rnti(rnti);
 
   // PCell shall be active by default
   ue.scell_info[0].state = scell_state_active;
@@ -79,7 +88,7 @@ inline void phy_ue_db::_clear_tti_pending_rnti(uint32_t tti, uint16_t rnti)
   pdsch_ack.simul_cqi_ack          = ue.scell_info[0].phy_cfg.ul_cfg.pucch.simul_cqi_ack;
 }
 
-inline void phy_ue_db::_set_config_rnti(uint16_t rnti)
+inline void phy_ue_db::_set_common_config_rnti(uint16_t rnti)
 {
   // Private function not mutexed, no need to assert RNTI or TTI
 
@@ -91,6 +100,9 @@ inline void phy_ue_db::_set_config_rnti(uint16_t rnti)
     scell_info.phy_cfg.dl_cfg.pdsch.rnti                          = rnti;
     scell_info.phy_cfg.ul_cfg.pucch.rnti                          = rnti;
     scell_info.phy_cfg.ul_cfg.pusch.rnti                          = rnti;
+    scell_info.phy_cfg.ul_cfg.pusch.meas_time_en                  = true;
+    scell_info.phy_cfg.ul_cfg.pusch.meas_ta_en                    = phy_args->pusch_meas_ta;
+    scell_info.phy_cfg.ul_cfg.pusch.meas_evm_en                   = phy_args->pusch_meas_evm;
     scell_info.phy_cfg.ul_cfg.pucch.threshold_format1             = SRSLTE_PUCCH_DEFAULT_THRESHOLD_FORMAT1;
     scell_info.phy_cfg.ul_cfg.pucch.threshold_data_valid_format1a = SRSLTE_PUCCH_DEFAULT_THRESHOLD_FORMAT1A;
     scell_info.phy_cfg.ul_cfg.pucch.threshold_data_valid_format2  = SRSLTE_PUCCH_DEFAULT_THRESHOLD_FORMAT2;
@@ -148,7 +160,7 @@ void phy_ue_db::addmod_rnti(uint16_t
       scell_info.phy_cfg = phy_rrc_dedicated.phy_cfg;
 
       // Set constant configuration fields
-      _set_config_rnti(rnti);
+      _set_common_config_rnti(rnti);
 
       // Set SCell state, all deactivated by default except PCell
       scell_info.state = scell_idx == 0 ? scell_state_active : scell_state_deactivated;

srsenb/src/stack/mac/mac.cc

@@ -398,6 +398,12 @@ int mac::snr_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, float snr)
   return ret;
 }
 
+int mac::ta_info(uint32_t tti, uint16_t rnti, float ta_us)
+{
+  log_h->info("TA: tti=%d, rnti=0x%04x, ta_us=%.1f\n", tti, rnti, ta_us);
+  return SRSLTE_SUCCESS;
+}
+
 int mac::sr_detected(uint32_t tti, uint16_t rnti)
 {
   log_h->step(tti);

srsenb/test/phy/enb_phy_test.cc

@@ -281,6 +281,7 @@ private:
   CALLBACK(pmi_info);
   CALLBACK(cqi_info);
   CALLBACK(snr_info);
+  CALLBACK(ta_info);
   CALLBACK(ack_info);
   CALLBACK(crc_info);
   CALLBACK(get_dl_sched);
@@ -405,6 +406,12 @@ public:
     notify_snr_info();
     return 0;
   }
+  int ta_info(uint32_t tti, uint16_t rnti, float ta_us) override
+  {
+    log_h.info("Received TA INFO tti=%d; rnti=x%x; ta=%.1f us\n", tti, rnti, ta_us);
+    notify_ta_info();
+    return 0;
+  }
   int ack_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t tb_idx, bool ack) override
   {
     // Push grant info in queue