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nr_dlsim: fix low-SNR performance by using DCI aggregation level 8

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This commit is contained in:
Thomas Schlichter
2022-04-19 11:32:47 +02:00
parent 94e5aaff88
commit 795c057d8c
4 changed files with 20 additions and 10 deletions
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cmake_targets/autotests/test_case_list.xml
+1 -1
View File
@@ -1134,7 +1134,7 @@
-n100 -s2 -U 2 1 3
-n10 -s20 -U 3 0 0 2 -gR -x1 -y4 -z4
-n10 -s20 -U 3 0 0 2 -gR -x2 -y4 -z4
-n100 -e0 -t99 -S0.2 -i</main_exec_args>
-n100 -e0 -t99 -S-1.4 -i</main_exec_args>
<tags>nr_dlsim.test1 nr_dlsim.test2 nr_dlsim.test3 nr_dlsim.test4 nr_dlsim.test5 nr_dlsim.test6 nr_dlsim.test7 nr_dlsim.test8 nr_dlsim.test9 nr_dlsim.test10 nr_dlsim.test11 nr_dlsim.test12 nr_dlsim.test13 nr_dlsim.test14 nr_dlsim.test15 nr_dlsim.test16 nr_dlsim.test17 nr_dlsim.test18 nr_dlsim.test19 nr_dlsim.test20 nr_dlsim.test21 nr_dlsim.test22 nr_dlsim.test23</tags>
<search_expr_true>PDSCH test OK</search_expr_true>
<search_expr_false>segmentation fault|assertion|exiting|fatal</search_expr_false>
openair1/PHY/NR_UE_TRANSPORT/dci_nr.c
+1 -1
View File
@@ -888,7 +888,7 @@ uint8_t nr_dci_decoding_procedure(PHY_VARS_NR_UE *ue,
proc->frame_rx, proc->nr_slot_rx,n_rnti,nr_dci_format_string[rel15->dci_format_options[k]],CCEind,dci_length,*(unsigned long long*)dci_estimation);
uint16_t mb = nr_dci_false_detection(dci_estimation,tmp_e,L*108,n_rnti, NR_POLAR_DCI_MESSAGE_TYPE, dci_length, L);
ue->dci_thres = (ue->dci_thres + mb) / 2;
if (mb > (ue->dci_thres+20)) {
if (mb > (ue->dci_thres+30)) {
LOG_W(PHY,"DCI false positive. Dropping DCI index %d. Mismatched bits: %d/%d. Current DCI threshold: %d\n",j,mb,L*108,ue->dci_thres);
continue;
}
openair1/SIMULATION/NR_PHY/dlsim.c
+11 -4
View File
@@ -275,10 +275,17 @@ void nr_dlsim_preprocessor(module_id_t module_id,
/* manually set free CCE to 0 */
const int target_ss = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
sched_ctrl->search_space = get_searchspace(NULL, scc, sched_ctrl->active_bwp ? sched_ctrl->active_bwp->bwp_Dedicated : NULL, target_ss);
uint8_t nr_of_candidates;
find_aggregation_candidates(&sched_ctrl->aggregation_level,
&nr_of_candidates,
sched_ctrl->search_space,4);
uint8_t nr_of_candidates = 0;
if (g_mcsIndex < 4) {
find_aggregation_candidates(&sched_ctrl->aggregation_level,
&nr_of_candidates,
sched_ctrl->search_space,8);
}
if (nr_of_candidates == 0) {
find_aggregation_candidates(&sched_ctrl->aggregation_level,
&nr_of_candidates,
sched_ctrl->search_space,4);
}
sched_ctrl->coreset = get_coreset(module_id, scc, sched_ctrl->active_bwp->bwp_Dedicated, sched_ctrl->search_space, target_ss);
sched_ctrl->cce_index = 0;
openair2/RRC/NR/rrc_gNB_reconfig.c
+7 -4
View File
@@ -528,13 +528,16 @@ void fill_default_secondaryCellGroup(NR_ServingCellConfigCommon_t *servingcellco
ss2->nrofCandidates=calloc(1,sizeof(*ss2->nrofCandidates));
ss2->nrofCandidates->aggregationLevel1 = NR_SearchSpace__nrofCandidates__aggregationLevel1_n0;
ss2->nrofCandidates->aggregationLevel2 = NR_SearchSpace__nrofCandidates__aggregationLevel2_n0;
if (curr_bwp < 48)
if (curr_bwp < 48) {
ss2->nrofCandidates->aggregationLevel4 = NR_SearchSpace__nrofCandidates__aggregationLevel4_n1;
else if (curr_bwp < 96)
ss2->nrofCandidates->aggregationLevel8 = NR_SearchSpace__nrofCandidates__aggregationLevel8_n0;
} else if (curr_bwp < 96) {
ss2->nrofCandidates->aggregationLevel4 = NR_SearchSpace__nrofCandidates__aggregationLevel4_n2;
else
ss2->nrofCandidates->aggregationLevel8 = NR_SearchSpace__nrofCandidates__aggregationLevel8_n1;
} else {
ss2->nrofCandidates->aggregationLevel4 = NR_SearchSpace__nrofCandidates__aggregationLevel4_n4;
ss2->nrofCandidates->aggregationLevel8 = NR_SearchSpace__nrofCandidates__aggregationLevel8_n0;
ss2->nrofCandidates->aggregationLevel8 = NR_SearchSpace__nrofCandidates__aggregationLevel8_n2;
}
ss2->nrofCandidates->aggregationLevel16 = NR_SearchSpace__nrofCandidates__aggregationLevel16_n0;
ss2->searchSpaceType=calloc(1,sizeof(*ss2->searchSpaceType));
ss2->searchSpaceType->present = NR_SearchSpace__searchSpaceType_PR_ue_Specific;