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sched: add CQI->MCS mapping to PDSCH allocator 

Signed-off-by: Carlo Galiotto <carlo@srs.io>
This commit is contained in:
Carlo Galiotto 2021-12-09 15:52:42 +01:00 committed by carlo-gal
parent a7255cfac6
commit 3a7739fba5
1 changed files with 13 additions and 1 deletions
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14
srsgnb/src/stack/mac/sched_nr_grant_allocator.cc
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@ -326,8 +326,20 @@ alloc_result bwp_slot_allocator::alloc_pdsch(slot_ue& ue, uint32_t ss_id, const
// Allocate PDSCH
pdsch_t& pdsch = bwp_pdcch_slot.pdschs.alloc_ue_pdsch_unchecked(ss_id, dci_fmt, dl_grant, ue.cfg(), pdcch.dci);
// Initialize MCS based on CQI
int mcs = srsran_ra_nr_cqi_to_mcs(/* cqi */ 10,
/* cqi_table_idx */ SRSRAN_CSI_CQI_TABLE_1,
/* mcs_table */ ue->phy().get_mcs_table(),
/* dci_format */ pdcch->dci.ctx.format,
/* search_space_type*/ ss.type,
/* rnti_type */ rnti_type);
// This is only to handle the case that the MCS return is -1. It should not happen unless CQI is 0 ir invalid
if (mcs == -1) {
mcs = ue->fixed_pdsch_mcs();
}
// Allocate HARQ
int mcs = ue->fixed_pdsch_mcs();
if (ue.h_dl->empty()) {
bool success = ue.h_dl->new_tx(ue.pdsch_slot, ue.uci_slot, dl_grant, mcs, 4, pdcch.dci);
srsran_assert(success, "Failed to allocate DL HARQ");