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nr,gnb,sched: fix crash in mcs selection loop

This commit is contained in:
Francisco 2021-12-13 18:12:32 +00:00 committed by Francisco Paisana
parent ffca2f7684
commit 486dd9099c
1 changed files with 3 additions and 2 deletions
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5
srsgnb/src/stack/mac/sched_nr_grant_allocator.cc
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@ -347,16 +347,17 @@ alloc_result bwp_slot_allocator::alloc_pdsch(slot_ue& ue, uint32_t ss_id, const
if (ue.h_dl->nof_retx() != 0) {
srsran_assert(pdsch.sch.grant.tb[0].tbs == (int)ue.h_dl->tbs(), "The TBS did not remain constant in retx");
}
if (ue.h_dl->nof_retx() > 0 or bwp_pdsch_slot.dl.phy.pdsch.back().sch.grant.tb[0].R_prime < max_R or mcs <= 0) {
if (ue.h_dl->nof_retx() > 0 or pdsch.sch.grant.tb[0].R_prime < max_R or mcs <= 0) {
break;
}
// Decrease MCS if first tx and rate is too high
mcs--;
ue.h_dl->set_mcs(mcs);
pdcch.dci.mcs = mcs;
}
if (mcs == 0) {
logger.warning("Couldn't find mcs that leads to R<0.95");
}
ue.h_dl->set_mcs(mcs);
ue.h_dl->set_tbs(pdsch.sch.grant.tb[0].tbs); // set HARQ TBS
pdsch.sch.grant.tb[0].softbuffer.tx = ue.h_dl->get_softbuffer().get();
pdsch.data[0] = ue.h_dl->get_tx_pdu()->get();