Resource Allocation and PDSCH: handle Rel-16 PBCH repetition. Repeate…

…d symbols are not used in PBCH decoding, just taken out of PDSCH. 5G-MAG#9
kuehnhammer · Oct 5, 2023 · 4e359bf · 4e359bf
1 parent 9b5644a
commit 4e359bf
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Showing 3 changed files with 6 additions and 2 deletions.
diff --git a/lib/srsran b/lib/srsran
diff --git a/src/Phy.cpp b/src/Phy.cpp
@@ -39,12 +39,13 @@ const uint32_t kSubframesPerFrame = 10;
 
 const uint32_t kMaxCellsToDiscover = 3;
 
-Phy::Phy(const libconfig::Config& /*cfg*/, get_samples_t cb, uint8_t cs_nof_prb, //NOLINT
+Phy::Phy(const libconfig::Config& cfg, get_samples_t cb, uint8_t cs_nof_prb, //NOLINT
          int8_t override_nof_prb, uint8_t rx_channels)
       : _sample_cb(std::move(cb))
       , _cs_nof_prb(cs_nof_prb)
       , _override_nof_prb(override_nof_prb)
       , _rx_channels(rx_channels) {
+  cfg.lookupValue("modem.phy.pbch_repetition_r16", _has_pbch_repetition_r16);
   _buffer_max_samples = kMaxBufferSamples;
   _mib_buffer[0] = static_cast<cf_t*>(malloc(_buffer_max_samples * sizeof(cf_t)));  // NOLINT
   _mib_buffer[1] = static_cast<cf_t*>(malloc(_buffer_max_samples * sizeof(cf_t)));  // NOLINT
@@ -168,6 +169,7 @@ auto Phy::cell_search() -> bool {
 
     _cell = new_cell;
     _cell.mbsfn_prb = _cell.nof_prb;
+    _cell.has_pbch_repetition_r16 = _has_pbch_repetition_r16;
 
     if (srsran_ue_sync_set_cell(&_ue_sync, cell()) != 0) {
       spdlog::error("Phy: failed to set cell.\n");

diff --git a/src/Phy.h b/src/Phy.h
@@ -240,4 +240,6 @@ class Phy {
     int8_t _override_nof_prb;
     uint8_t _rx_channels;
     bool _search_extended_cp = true;
+
+    bool _has_pbch_repetition_r16 = false;
 };