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Dynamic PDCCH aggregation level

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The aggregation level search order for PDCCH candidates is modified:
 - the search starts from desired_agg_level_index, which is a value from 0 to 4
   proportial to pdcch_cl_adjust.
 - pdcch_cl_adjust is a value between 0 and 1 that indicates PDCCH channel quality
   by averaging HARQ DTX rate. A value of 0 means perfect channel, a value o 1 means
   impaired channel.
This commit is contained in:
Bartosz Podrygajlo
2025-02-13 10:57:14 +01:00
parent ff58b5e169
commit 16f028dba5
10 changed files with 102 additions and 19 deletions
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openair1/PHY/NR_TRANSPORT/nr_dci.c
+3 -2
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@@ -99,7 +99,7 @@ static void nr_generate_dci(PHY_VARS_gNB *gNB,
if (dci_pdu->RNTI != 0xFFFF)
LOG_D(NR_PHY_DCI,
"DL_DCI : rb_offset %d, nb_rb %d, DMRS length per symbol %d\t DCI encoded length %d (precoder_granularity %d, "
"reg_mapping %d), Scrambling_Id %d, ScramblingRNTI %x, PayloadSizeBits %d\n",
"reg_mapping %d), Scrambling_Id %d, ScramblingRNTI %x, PayloadSizeBits %d AggregationLevel %d\n",
rb_offset,
n_rb,
dmrs_length,
@@ -108,7 +108,8 @@ static void nr_generate_dci(PHY_VARS_gNB *gNB,
pdcch_pdu_rel15->CceRegMappingType,
dci_pdu->ScramblingId,
dci_pdu->ScramblingRNTI,
dci_pdu->PayloadSizeBits);
dci_pdu->PayloadSizeBits,
dci_pdu->AggregationLevel);
dmrs_length += rb_offset*6; // To accommodate more DMRS symbols in case of rb offset
/// DMRS QPSK modulation