From 478ea7ab6c0a59471ad4cdf3ad902285ed03ac91 Mon Sep 17 00:00:00 2001 From: francescomani Date: Thu, 28 Jul 2022 15:10:03 +0200 Subject: [PATCH] BG at MAC as part of new FAPI version --- common/utils/nr/nr_common.c | 6 ------ common/utils/nr/nr_common.h | 1 - .../open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h | 2 ++ openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c | 6 +----- openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c | 7 +++---- openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c | 4 ++++ openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c | 1 + openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c | 1 + openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c | 9 +++++++++ openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c | 1 + openair2/LAYER2/NR_MAC_gNB/mac_proto.h | 2 +- 11 files changed, 23 insertions(+), 17 deletions(-) diff --git a/common/utils/nr/nr_common.c b/common/utils/nr/nr_common.c index 1f925d08f0..12ed9a8589 100644 --- a/common/utils/nr/nr_common.c +++ b/common/utils/nr/nr_common.c @@ -495,9 +495,3 @@ void SLIV2SL(int SLIV,int *S,int *L) { } } -int get_BG(uint32_t A, float code_rate) { - if ((A <=292) || ((A<=3824) && (code_rate <= 0.6667)) || code_rate <= 0.25) - return 2; - else - return 1; -} diff --git a/common/utils/nr/nr_common.h b/common/utils/nr/nr_common.h index c286c0ad6a..5f7f670ce9 100644 --- a/common/utils/nr/nr_common.h +++ b/common/utils/nr/nr_common.h @@ -76,7 +76,6 @@ uint16_t SL_to_bitmap(int startSymbolIndex, int nrOfSymbols); int get_nb_periods_per_frame(uint8_t tdd_period); int get_supported_band_index(int scs, int band, int n_rbs); long rrc_get_max_nr_csrs(uint8_t max_rbs, long b_SRS); -int get_BG(uint32_t A, float code_rate); #define CEILIDIV(a,b) ((a+b-1)/b) #define ROUNDIDIV(a,b) (((a<<1)+b)/(b<<1)) diff --git a/nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h b/nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h index 488129ceec..a2e3c57f5d 100644 --- a/nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h +++ b/nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h @@ -777,6 +777,7 @@ typedef struct { } nfapi_nr_dl_tti_pdcch_pdu_rel15_t; typedef struct { + uint8_t ldpcBaseGraph; uint32_t tbSizeLbrmBytes; }nfapi_v3_pdsch_maintenance_parameters_t; @@ -1193,6 +1194,7 @@ typedef struct #define PUSCH_PDU_BITMAP_DFTS_OFDM 0x8 typedef struct { + uint8_t ldpcBaseGraph; uint32_t tbSizeLbrmBytes; }nfapi_v3_pusch_maintenance_parameters_t; diff --git a/openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c b/openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c index 0e82de276d..b36ad7822b 100644 --- a/openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c +++ b/openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c @@ -376,11 +376,7 @@ int nr_dlsch_encoding(PHY_VARS_gNB *gNB, memcpy(harq->b, a, (A / 8) + 3); // using 3 bytes to mimic the case of 24 bit crc } - // target_code_rate is in 0.1 units - float Coderate = (float) rel15->targetCodeRate[0] / 10240.0f; - LOG_D(PHY,"DLSCH Coderate %f\n",Coderate); - - impp.BG = get_BG(A, Coderate); + impp.BG = rel15->maintenance_parms_v3.ldpcBaseGraph; start_meas(dlsch_segmentation_stats); impp.Kb = nr_segmentation(harq->b, harq->c, harq->B, &impp.n_segments, &impp.K, impp.Zc, &impp.F, impp.BG); diff --git a/openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c b/openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c index b9a1430be6..813a3cc23a 100644 --- a/openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c +++ b/openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c @@ -382,7 +382,6 @@ uint32_t nr_ulsch_decoding(PHY_VARS_gNB *phy_vars_gNB, uint32_t r; uint32_t r_offset; uint32_t offset; - int kc; int E; #ifdef PRINT_CRC_CHECK @@ -445,8 +444,9 @@ uint32_t nr_ulsch_decoding(PHY_VARS_gNB *phy_vars_gNB, LOG_D(PHY,"ULSCH Decoding, harq_pid %d TBS %d G %d mcs %d Nl %d nb_rb %d, Qm %d, Coderate %f RV %d round %d\n", harq_pid, A, G, mcs, n_layers, nb_rb, Qm, Coderate, pusch_pdu->pusch_data.rv_index, harq_process->round); - if ((A <=292) || ((A<=3824) && (Coderate <= 0.6667)) || Coderate <= 0.25){ - p_decParams->BG = 2; + p_decParams->BG = pusch_pdu->maintenance_parms_v3.ldpcBaseGraph; + int kc; + if (p_decParams->BG == 2){ kc = 52; if (Coderate < 0.3333) { p_decParams->R = 15; @@ -458,7 +458,6 @@ uint32_t nr_ulsch_decoding(PHY_VARS_gNB *phy_vars_gNB, p_decParams->R = 23; } } else { - p_decParams->BG = 1; kc = 68; if (Coderate < 0.6667) { p_decParams->R = 13; diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c index 6daa68afed..6f69391dab 100644 --- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c +++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c @@ -1121,6 +1121,8 @@ void fill_msg3_pusch_pdu(nfapi_nr_pusch_pdu_t *pusch_pdu, pusch_pdu->mcs_index = mcsindex; pusch_pdu->pusch_data.tb_size = TBS; + pusch_pdu->maintenance_parms_v3.ldpcBaseGraph = get_BG(TBS<<3,R); + } } @@ -1425,6 +1427,7 @@ void nr_generate_Msg2(module_id_t module_idP, int CC_id, frame_t frameP, sub_fra pdsch_pdu_rel15->maintenance_parms_v3.tbSizeLbrmBytes = nr_compute_tbslbrm(mcsTableIdx, bw_tbslbrm, 1); + pdsch_pdu_rel15->maintenance_parms_v3.ldpcBaseGraph = get_BG(TBS<<3,R); // Fill PDCCH DL DCI PDU nfapi_nr_dl_dci_pdu_t *dci_pdu = &pdcch_pdu_rel15->dci_pdu[pdcch_pdu_rel15->numDlDci]; @@ -1829,6 +1832,7 @@ void nr_generate_Msg4(module_id_t module_idP, int CC_id, frame_t frameP, sub_fra pdsch_pdu_rel15->maintenance_parms_v3.tbSizeLbrmBytes = nr_compute_tbslbrm(mcsTableIdx, bw_tbslbrm, 1); + pdsch_pdu_rel15->maintenance_parms_v3.ldpcBaseGraph = get_BG(harq->tb_size<<3,R); pdsch_pdu_rel15->precodingAndBeamforming.num_prgs=1; pdsch_pdu_rel15->precodingAndBeamforming.prg_size=275; diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c index 828cb2b880..0c98a900cc 100644 --- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c +++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c @@ -465,6 +465,7 @@ void nr_fill_nfapi_dl_sib1_pdu(int Mod_idP, pdsch_pdu_rel15->maintenance_parms_v3.tbSizeLbrmBytes = nr_compute_tbslbrm(0, pdsch_pdu_rel15->BWPSize, 1); + pdsch_pdu_rel15->maintenance_parms_v3.ldpcBaseGraph = get_BG(TBS<<3,pdsch_pdu_rel15->targetCodeRate[0]); /* Fill PDCCH DL DCI PDU */ nfapi_nr_dl_dci_pdu_t *dci_pdu = &pdcch_pdu_rel15->dci_pdu[pdcch_pdu_rel15->numDlDci]; diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c index d9a0a50b7e..2ea58a4a24 100644 --- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c +++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c @@ -1128,6 +1128,7 @@ void nr_schedule_ue_spec(module_id_t module_id, pdsch_pdu->maintenance_parms_v3.tbSizeLbrmBytes = nr_compute_tbslbrm(ps->mcsTableIdx, bw_tbslbrm, nl_tbslbrm); + pdsch_pdu->maintenance_parms_v3.ldpcBaseGraph = get_BG(TBS<<3,R); NR_PDSCH_Config_t *pdsch_Config=NULL; diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c index 9941437e13..d6959f0a87 100644 --- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c +++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c @@ -245,6 +245,15 @@ void set_dl_dmrs_ports(NR_pdsch_semi_static_t *ps) { } } +uint8_t get_BG(uint32_t A, uint16_t R) { + + float code_rate = (float) R / 10240.0f; + if ((A <=292) || ((A<=3824) && (code_rate <= 0.6667)) || code_rate <= 0.25) + return 2; + else + return 1; +} + NR_BWP_t *get_dl_bwp_genericParameters(NR_BWP_Downlink_t *active_bwp, NR_ServingCellConfigCommon_t *ServingCellConfigCommon, const NR_SIB1_t *sib1) { diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c index fa31e0a92c..fafe149cda 100644 --- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c +++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c @@ -1837,6 +1837,7 @@ void nr_schedule_ulsch(module_id_t module_id, frame_t frame, sub_frame_t slot) pusch_pdu->pusch_data.num_cb = 0; //CBG not supported pusch_pdu->maintenance_parms_v3.tbSizeLbrmBytes = 0; + pusch_pdu->maintenance_parms_v3.ldpcBaseGraph = get_BG(sched_pusch->tb_size<<3,sched_pusch->R); LOG_D(NR_MAC,"PUSCH PDU : data_scrambling_identity %x, dmrs_scrambling_id %x\n",pusch_pdu->data_scrambling_id,pusch_pdu->ul_dmrs_scrambling_id); /* TRANSFORM PRECODING --------------------------------------------------------*/ diff --git a/openair2/LAYER2/NR_MAC_gNB/mac_proto.h b/openair2/LAYER2/NR_MAC_gNB/mac_proto.h index 83097ae260..8f69493148 100644 --- a/openair2/LAYER2/NR_MAC_gNB/mac_proto.h +++ b/openair2/LAYER2/NR_MAC_gNB/mac_proto.h @@ -498,7 +498,7 @@ uint16_t set_pm_index(NR_UE_sched_ctrl_t *sched_ctrl, int codebook_mode); uint8_t get_mcs_from_cqi(int mcs_table, int cqi_table, int cqi_idx); - +uint8_t get_BG(uint32_t A, uint16_t R); uint8_t set_dl_nrOfLayers(NR_UE_sched_ctrl_t *sched_ctrl); int get_dci_format(NR_UE_sched_ctrl_t *sched_ctrl);