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openairinterface5g/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file nr_mac_common.c
* \brief Common MAC/PHY functions for NR UE and gNB
* \author Florian Kaltenberger and Raymond Knopp
* \date 2019
* \version 0.1
* \company Eurecom, NTUST
* \email: florian.kalteberger@eurecom.fr, raymond.knopp@eurecom.fr
* @ingroup _mac
*/
#include "LAYER2/NR_MAC_gNB/mac_proto.h"
nr_bandentry_t nr_bandtable[] = {
{1, 1920000, 1980000, 2110000, 2170000, 20, 422000, 100},
{2, 1850000, 1910000, 1930000, 1990000, 20, 386000, 100},
{3, 1710000, 1785000, 1805000, 1880000, 20, 361000, 100},
{5, 824000, 849000, 869000, 894000, 20, 173800, 100},
{7, 2500000, 2570000, 2620000, 2690000, 20, 524000, 100},
{8, 880000, 915000, 925000, 960000, 20, 185000, 100},
{12, 698000, 716000, 728000, 746000, 20, 145800, 100},
{20, 832000, 862000, 791000, 821000, 20, 158200, 100},
{25, 1850000, 1915000, 1930000, 1995000, 20, 386000, 100},
{28, 703000, 758000, 758000, 813000, 20, 151600, 100},
{34, 2010000, 2025000, 2010000, 2025000, 20, 402000, 100},
{38, 2570000, 2620000, 2570000, 2630000, 20, 514000, 100},
{39, 1880000, 1920000, 1880000, 1920000, 20, 376000, 100},
{40, 2300000, 2400000, 2300000, 2400000, 20, 460000, 100},
{41, 2496000, 2690000, 2496000, 2690000, 3, 499200, 15},
{41, 2496000, 2690000, 2496000, 2690000, 6, 499200, 30},
{50, 1432000, 1517000, 1432000, 1517000, 20, 286400, 100},
{51, 1427000, 1432000, 1427000, 1432000, 20, 285400, 100},
{66, 1710000, 1780000, 2110000, 2200000, 20, 422000, 100},
{70, 1695000, 1710000, 1995000, 2020000, 20, 399000, 100},
{71, 663000, 698000, 617000, 652000, 20, 123400, 100},
{74, 1427000, 1470000, 1475000, 1518000, 20, 295000, 100},
{75, 000, 000, 1432000, 1517000, 20, 286400, 100},
{76, 000, 000, 1427000, 1432000, 20, 285400, 100},
{77, 3300000, 4200000, 3300000, 4200000, 1, 620000, 15},
{77, 3300000, 4200000, 3300000, 4200000, 2, 620000, 30},
{78, 3300000, 3800000, 3300000, 3800000, 1, 620000, 15},
{78, 3300000, 3800000, 3300000, 3800000, 2, 620000, 30},
{79, 4400000, 5000000, 4400000, 5000000, 1, 693334, 15},
{79, 4400000, 5000000, 4400000, 5000000, 2, 693334, 30},
{80, 1710000, 1785000, 000, 000, 20, 342000, 100},
{81, 860000, 915000, 000, 000, 20, 176000, 100},
{82, 832000, 862000, 000, 000, 20, 166400, 100},
{83, 703000, 748000, 000, 000, 20, 140600, 100},
{84, 1920000, 1980000, 000, 000, 20, 384000, 100},
{86, 1710000, 1785000, 000, 000, 20, 342000, 100},
{257,26500000,29500000,26500000,29500000, 1,2054166, 60},
{257,26500000,29500000,26500000,29500000, 2,2054167, 120},
{258,24250000,27500000,24250000,27500000, 1,2016667, 60},
{258,24250000,27500000,24250000,27500000, 2,2016667, 120},
{260,37000000,40000000,37000000,40000000, 1,2229166, 60},
{260,37000000,40000000,37000000,40000000, 2,2229167, 120},
{261,27500000,28350000,27500000,28350000, 1,2070833, 60},
{261,27500000,28350000,27500000,28350000, 2,2070833, 120}
};
#define NR_BANDTABLE_SIZE (sizeof(nr_bandtable)/sizeof(nr_bandentry_t))
void get_band(uint64_t downlink_frequency,
uint16_t *current_band,
int32_t *current_offset,
lte_frame_type_t *current_type)
{
int ind;
uint64_t center_frequency_khz;
uint64_t center_freq_diff_khz;
uint64_t dl_freq_khz = downlink_frequency/1000;
center_freq_diff_khz = 999999999999999999; // 2^64
*current_band = 0;
for ( ind=0;
ind < sizeof(nr_bandtable) / sizeof(nr_bandtable[0]);
ind++) {
LOG_I(PHY, "Scanning band %d, dl_min %"PRIu64", ul_min %"PRIu64"\n", nr_bandtable[ind].band, nr_bandtable[ind].dl_min,nr_bandtable[ind].ul_min);
if ( nr_bandtable[ind].dl_min <= dl_freq_khz && nr_bandtable[ind].dl_max >= dl_freq_khz ) {
center_frequency_khz = (nr_bandtable[ind].dl_max + nr_bandtable[ind].dl_min)/2;
if (abs(dl_freq_khz - center_frequency_khz) < center_freq_diff_khz){
*current_band = nr_bandtable[ind].band;
*current_offset = (nr_bandtable[ind].ul_min - nr_bandtable[ind].dl_min)*1000;
center_freq_diff_khz = abs(dl_freq_khz - center_frequency_khz);
if (*current_offset == 0)
*current_type = TDD;
else
*current_type = FDD;
}
}
}
LOG_I( PHY, "DL frequency %"PRIu64": band %d, frame_type %d, UL frequency %"PRIu64"\n",
downlink_frequency, *current_band, *current_type, downlink_frequency+*current_offset);
AssertFatal(*current_band != 0,
"Can't find EUTRA band for frequency %lu\n", downlink_frequency);
}
uint16_t config_bandwidth(int mu, int nb_rb, int nr_band)
{
if (nr_band < 100) { //FR1
switch(mu) {
case 0 :
if (nb_rb<=25)
return 5;
if (nb_rb<=52)
return 10;
if (nb_rb<=79)
return 15;
if (nb_rb<=106)
return 20;
if (nb_rb<=133)
return 25;
if (nb_rb<=160)
return 30;
if (nb_rb<=216)
return 40;
if (nb_rb<=270)
return 50;
AssertFatal(1==0,"Number of DL resource blocks %d undefined for mu %d and band %d\n", nb_rb, mu, nr_band);
break;
case 1 :
if (nb_rb<=11)
return 5;
if (nb_rb<=24)
return 10;
if (nb_rb<=38)
return 15;
if (nb_rb<=51)
return 20;
if (nb_rb<=65)
return 25;
if (nb_rb<=78)
return 30;
if (nb_rb<=106)
return 40;
if (nb_rb<=133)
return 50;
if (nb_rb<=162)
return 60;
if (nb_rb<=189)
return 70;
if (nb_rb<=217)
return 80;
if (nb_rb<=245)
return 90;
if (nb_rb<=273)
return 100;
AssertFatal(1==0,"Number of DL resource blocks %d undefined for mu %d and band %d\n", nb_rb, mu, nr_band);
break;
case 2 :
if (nb_rb<=11)
return 10;
if (nb_rb<=18)
return 15;
if (nb_rb<=24)
return 20;
if (nb_rb<=31)
return 25;
if (nb_rb<=38)
return 30;
if (nb_rb<=51)
return 40;
if (nb_rb<=65)
return 50;
if (nb_rb<=79)
return 60;
if (nb_rb<=93)
return 70;
if (nb_rb<=107)
return 80;
if (nb_rb<=121)
return 90;
if (nb_rb<=135)
return 100;
AssertFatal(1==0,"Number of DL resource blocks %d undefined for mu %d and band %d\n", nb_rb, mu, nr_band);
break;
default:
AssertFatal(1==0,"Numerology %d undefined for band %d in FR1\n", mu,nr_band);
}
}
else {
switch(mu) {
case 2 :
if (nb_rb<=66)
return 50;
if (nb_rb<=132)
return 100;
if (nb_rb<=264)
return 200;
AssertFatal(1==0,"Number of DL resource blocks %d undefined for mu %d and band %d\n", nb_rb, mu, nr_band);
break;
case 3 :
if (nb_rb<=32)
return 50;
if (nb_rb<=66)
return 100;
if (nb_rb<=132)
return 200;
if (nb_rb<=264)
return 400;
AssertFatal(1==0,"Number of DL resource blocks %d undefined for mu %d and band %d\n", nb_rb, mu, nr_band);
break;
default:
AssertFatal(1==0,"Numerology %d undefined for band %d in FR1\n", mu,nr_band);
}
}
}
uint32_t to_nrarfcn(int nr_bandP,
uint64_t dl_CarrierFreq,
uint8_t scs_index,
uint32_t bw)
{
uint64_t dl_CarrierFreq_by_1k = dl_CarrierFreq / 1000;
int bw_kHz = bw / 1000;
int scs_khz = 15<<scs_index;
int i;
uint32_t nrarfcn, delta_arfcn;
LOG_I(MAC,"Searching for nr band %d DL Carrier frequency %llu bw %u\n",nr_bandP,(long long unsigned int)dl_CarrierFreq,bw);
AssertFatal(nr_bandP <= 261, "nr_band %d > 260\n", nr_bandP);
for (i = 0; i < NR_BANDTABLE_SIZE && nr_bandtable[i].band != nr_bandP; i++);
// selection of correct Deltaf raster according to SCS
if ( (nr_bandtable[i].deltaf_raster != 100) && (nr_bandtable[i].deltaf_raster != scs_khz))
i++;
AssertFatal(dl_CarrierFreq_by_1k >= nr_bandtable[i].dl_min,
"Band %d, bw %u : DL carrier frequency %llu kHz < %llu\n",
nr_bandP, bw, (long long unsigned int)dl_CarrierFreq_by_1k,
(long long unsigned int)nr_bandtable[i].dl_min);
AssertFatal(dl_CarrierFreq_by_1k <= (nr_bandtable[i].dl_max - bw_kHz),
"Band %d, dl_CarrierFreq %llu bw %u: DL carrier frequency %llu kHz > %llu\n",
nr_bandP, (long long unsigned int)dl_CarrierFreq,bw, (long long unsigned int)dl_CarrierFreq_by_1k,
(long long unsigned int)(nr_bandtable[i].dl_max - bw_kHz));
int deltaFglobal = 60;
if (dl_CarrierFreq < 3e9) deltaFglobal = 15;
if (dl_CarrierFreq < 24.25e9) deltaFglobal = 5;
// This is equation before Table 5.4.2.1-1 in 38101-1-f30
// F_REF=F_REF_Offs + deltaF_Global(N_REF-NREF_REF_Offs)
nrarfcn = (((dl_CarrierFreq_by_1k - nr_bandtable[i].dl_min)/deltaFglobal)+nr_bandtable[i].N_OFFs_DL);
delta_arfcn = nrarfcn - nr_bandtable[i].N_OFFs_DL;
if(delta_arfcn%(nr_bandtable[i].step_size)!=0)
AssertFatal(1==0,"dl_CarrierFreq %lu corresponds to %u which is not on the raster for step size %lu",
dl_CarrierFreq,nrarfcn,nr_bandtable[i].step_size);
return nrarfcn;
}
uint64_t from_nrarfcn(int nr_bandP,
uint8_t scs_index,
uint32_t dl_nrarfcn)
{
int i;
int deltaFglobal = 5;
int scs_khz = 15<<scs_index;
uint32_t delta_arfcn;
if (dl_nrarfcn > 599999 && dl_nrarfcn < 2016667)
deltaFglobal = 15;
if (dl_nrarfcn > 2016666 && dl_nrarfcn < 3279166)
deltaFglobal = 60;
AssertFatal(nr_bandP <= 261, "nr_band %d > 260\n", nr_bandP);
for (i = 0; i < NR_BANDTABLE_SIZE && nr_bandtable[i].band != nr_bandP; i++);
AssertFatal(dl_nrarfcn>=nr_bandtable[i].N_OFFs_DL,"dl_nrarfcn %u < N_OFFs_DL[%d] %llu\n",dl_nrarfcn, nr_bandtable[i].band,(long long unsigned int)nr_bandtable[i].N_OFFs_DL);
// selection of correct Deltaf raster according to SCS
if ( (nr_bandtable[i].deltaf_raster != 100) && (nr_bandtable[i].deltaf_raster != scs_khz))
i++;
delta_arfcn = dl_nrarfcn - nr_bandtable[i].N_OFFs_DL;
if(delta_arfcn%(nr_bandtable[i].step_size)!=0)
AssertFatal(1==0,"dl_nrarfcn %u is not on the raster for step size %lu",dl_nrarfcn,nr_bandtable[i].step_size);
LOG_I(PHY,"Computing dl_frequency (pointA %llu => %llu (dlmin %llu, nr_bandtable[%d].N_OFFs_DL %llu))\n",
(unsigned long long)dl_nrarfcn,
(unsigned long long)(1000*(nr_bandtable[i].dl_min + (dl_nrarfcn - nr_bandtable[i].N_OFFs_DL) * deltaFglobal)),
(unsigned long long)nr_bandtable[i].dl_min,
i,
(unsigned long long)nr_bandtable[i].N_OFFs_DL);
return 1000*(nr_bandtable[i].dl_min + (dl_nrarfcn - nr_bandtable[i].N_OFFs_DL) * deltaFglobal);
}
int32_t get_nr_uldl_offset(int nr_bandP)
{
int i;
for (i = 0; i < NR_BANDTABLE_SIZE && nr_bandtable[i].band != nr_bandP; i++);
AssertFatal(i < NR_BANDTABLE_SIZE, "i %d >= BANDTABLE_SIZE %ld\n", i, NR_BANDTABLE_SIZE);
return (nr_bandtable[i].dl_min - nr_bandtable[i].ul_min);
}
void nr_get_tbs_dl(nfapi_nr_dl_tti_pdsch_pdu *pdsch_pdu,
int x_overhead) {
LOG_D(MAC, "TBS calculation\n");
nfapi_nr_dl_tti_pdsch_pdu_rel15_t *pdsch_rel15 = &pdsch_pdu->pdsch_pdu_rel15;
uint16_t N_PRB_oh = x_overhead;
uint8_t N_PRB_DMRS = (pdsch_rel15->dmrsConfigType == NFAPI_NR_DMRS_TYPE1)?6:4; //This only works for antenna port 1000
uint8_t N_sh_symb = pdsch_rel15->NrOfSymbols;
uint8_t Imcs = pdsch_rel15->mcsIndex[0];
uint16_t N_RE_prime = NR_NB_SC_PER_RB*N_sh_symb - N_PRB_DMRS - N_PRB_oh;
LOG_D(MAC, "N_RE_prime %d for %d symbols %d DMRS per PRB and %d overhead\n", N_RE_prime, N_sh_symb, N_PRB_DMRS, N_PRB_oh);
uint16_t R;
uint32_t TBS=0;
uint8_t table_idx, Qm;
/*uint8_t mcs_table = config.pdsch_config.mcs_table.value;
uint8_t ss_type = params_rel15.search_space_type;
uint8_t dci_format = params_rel15.dci_format;
get_table_idx(mcs_table, dci_format, rnti_type, ss_type);*/
table_idx = 0;
R = nr_get_code_rate_dl(Imcs, table_idx);
Qm = nr_get_Qm_dl(Imcs, table_idx);
TBS = nr_compute_tbs(Qm,
R,
pdsch_rel15->rbSize,
N_sh_symb,
N_PRB_DMRS,
N_PRB_oh,
pdsch_rel15->nrOfLayers)>>3;
pdsch_rel15->targetCodeRate[0] = R;
pdsch_rel15->qamModOrder[0] = Qm;
pdsch_rel15->TBSize[0] = TBS;
// pdsch_rel15->nb_mod_symbols = N_RE_prime*pdsch_rel15->n_prb*pdsch_rel15->nb_codewords;
pdsch_rel15->mcsTable[0] = table_idx;
LOG_D(MAC, "TBS %d bytes: N_PRB_DMRS %d N_sh_symb %d N_PRB_oh %d R %d Qm %d table %d nb_symbols %d\n",
TBS, N_PRB_DMRS, N_sh_symb, N_PRB_oh, R, Qm, table_idx,N_RE_prime*pdsch_rel15->rbSize*pdsch_rel15->NrOfCodewords );
}
//Table 5.1.3.1-1 of 38.214
uint16_t Table_51311[29][2] = {{2,120},{2,157},{2,193},{2,251},{2,308},{2,379},{2,449},{2,526},{2,602},{2,679},{4,340},{4,378},{4,434},{4,490},{4,553},{4,616},
{4,658},{6,438},{6,466},{6,517},{6,567},{6,616},{6,666},{6,719},{6,772},{6,822},{6,873}, {6,910}, {6,948}};
//Table 5.1.3.1-2 of 38.214
// Imcs values 20 and 26 have been multiplied by 2 to avoid the floating point
uint16_t Table_51312[28][2] = {{2,120},{2,193},{2,308},{2,449},{2,602},{4,378},{4,434},{4,490},{4,553},{4,616},{4,658},{6,466},{6,517},{6,567},{6,616},{6,666},
{6,719},{6,772},{6,822},{6,873},{8,1365},{8,711},{8,754},{8,797},{8,841},{8,885},{8,1833},{8,948}};
//Table 5.1.3.1-3 of 38.214
uint16_t Table_51313[29][2] = {{2,30},{2,40},{2,50},{2,64},{2,78},{2,99},{2,120},{2,157},{2,193},{2,251},{2,308},{2,379},{2,449},{2,526},{2,602},{4,340},
{4,378},{4,434},{4,490},{4,553},{4,616},{6,438},{6,466},{6,517},{6,567},{6,616},{6,666}, {6,719}, {6,772}};
//Table 6.1.4.1-1 of 38.214 TODO fix for tp-pi2BPSK
uint16_t Table_61411[28][2] = {{2,120},{2,157},{2,193},{2,251},{2,308},{2,379},{2,449},{2,526},{2,602},{2,679},{4,340},{4,378},{4,434},{4,490},{4,553},{4,616},
{4,658},{6,466},{6,517},{6,567},{6,616},{6,666},{6,719},{6,772},{6,822},{6,873}, {6,910}, {6,948}};
//Table 6.1.4.1-2 of 38.214 TODO fix for tp-pi2BPSK
uint16_t Table_61412[28][2] = {{2,30},{2,40},{2,50},{2,64},{2,78},{2,99},{2,120},{2,157},{2,193},{2,251},{2,308},{2,379},{2,449},{2,526},{2,602},{2,679},
{4,378},{4,434},{4,490},{4,553},{4,616},{4,658},{4,699},{4,772},{6,567},{6,616},{6,666}, {6,772}};
uint8_t nr_get_Qm_dl(uint8_t Imcs, uint8_t table_idx) {
switch(table_idx) {
case 0:
return (Table_51311[Imcs][0]);
break;
case 1:
return (Table_51312[Imcs][0]);
break;
case 2:
return (Table_51313[Imcs][0]);
break;
default:
AssertFatal(0, "Invalid MCS table index %d (expected in range [1,3])\n", table_idx);
}
}
uint32_t nr_get_code_rate_dl(uint8_t Imcs, uint8_t table_idx) {
switch(table_idx) {
case 0:
return (Table_51311[Imcs][1]);
break;
case 1:
return (Table_51312[Imcs][1]);
break;
case 2:
return (Table_51313[Imcs][1]);
break;
default:
AssertFatal(0, "Invalid MCS table index %d (expected in range [1,3])\n", table_idx);
}
}
uint8_t nr_get_Qm_ul(uint8_t Imcs, uint8_t table_idx) {
switch(table_idx) {
case 0:
return (Table_51311[Imcs][0]);
break;
case 1:
return (Table_51312[Imcs][0]);
break;
case 2:
return (Table_51313[Imcs][0]);
break;
case 3:
return (Table_61411[Imcs][0]);
break;
case 4:
return (Table_61412[Imcs][0]);
break;
default:
AssertFatal(0, "Invalid MCS table index %d (expected in range [1,2])\n", table_idx);
}
}
uint32_t nr_get_code_rate_ul(uint8_t Imcs, uint8_t table_idx) {
switch(table_idx) {
case 0:
return (Table_51311[Imcs][1]);
break;
case 1:
return (Table_51312[Imcs][1]);
break;
case 2:
return (Table_51313[Imcs][1]);
break;
case 3:
return (Table_61411[Imcs][1]);
break;
case 4:
return (Table_61412[Imcs][1]);
break;
default:
AssertFatal(0, "Invalid MCS table index %d (expected in range [1,2])\n", table_idx);
}
}
static inline uint8_t is_codeword_disabled(uint8_t format, uint8_t Imcs, uint8_t rv) {
return ((format==NFAPI_NR_DL_DCI_FORMAT_1_1)&&(Imcs==26)&&(rv==1));
}
static inline uint8_t get_table_idx(uint8_t mcs_table, uint8_t dci_format, uint8_t rnti_type, uint8_t ss_type) {
if ((mcs_table == NFAPI_NR_MCS_TABLE_QAM256) && (dci_format == NFAPI_NR_DL_DCI_FORMAT_1_1) && ((rnti_type==NFAPI_NR_RNTI_C)||(rnti_type==NFAPI_NR_RNTI_CS)))
return 2;
else if ((mcs_table == NFAPI_NR_MCS_TABLE_QAM64_LOW_SE) && (rnti_type!=NFAPI_NR_RNTI_new) && (rnti_type==NFAPI_NR_RNTI_C) && (ss_type==NFAPI_NR_SEARCH_SPACE_TYPE_UE_SPECIFIC))
return 3;
else if (rnti_type==NFAPI_NR_RNTI_new)
return 3;
else if ((mcs_table == NFAPI_NR_MCS_TABLE_QAM256) && (rnti_type==NFAPI_NR_RNTI_CS) && (dci_format == NFAPI_NR_DL_DCI_FORMAT_1_1))
return 2; // Condition mcs_table not configured in sps_config necessary here but not yet implemented
/*else if((mcs_table == NFAPI_NR_MCS_TABLE_QAM64_LOW_SE) && (rnti_type==NFAPI_NR_RNTI_CS))
* table_idx = 3;
* Note: the commented block refers to the case where the mcs_table is from sps_config*/
else
return 1;
}
int get_num_dmrs(uint16_t dmrs_mask ) {
int num_dmrs=0;
for (int i=0;i<16;i++) num_dmrs+=((dmrs_mask>>i)&1);
return(num_dmrs);
}
// Table 5.1.2.2.1-1 38.214
uint8_t getRBGSize(uint16_t bwp_size, long rbg_size_config) {
AssertFatal(bwp_size<276,"BWP Size > 275\n");
if (bwp_size < 37) return (rbg_size_config ? 4 : 2);
if (bwp_size < 73) return (rbg_size_config ? 8 : 4);
if (bwp_size < 145) return (rbg_size_config ? 16 : 8);
if (bwp_size < 276) return 16;
}
uint8_t getNRBG(uint16_t bwp_size, uint16_t bwp_start, long rbg_size_config) {
uint8_t rbg_size = getRBGSize(bwp_size,rbg_size_config);
return (uint8_t)ceil((bwp_size+(bwp_start % rbg_size))/rbg_size);
}
uint8_t getAntPortBitWidth(NR_SetupRelease_DMRS_DownlinkConfig_t *typeA, NR_SetupRelease_DMRS_DownlinkConfig_t *typeB) {
uint8_t nbitsA = 0;
uint8_t nbitsB = 0;
uint8_t type,length,nbits;
if (typeA != NULL) {
type = (typeA->choice.setup->dmrs_Type==NULL) ? 1:2;
length = (typeA->choice.setup->maxLength==NULL) ? 1:2;
nbitsA = type + length + 2;
if (typeB == NULL) return nbitsA;
}
if (typeB != NULL) {
type = (typeB->choice.setup->dmrs_Type==NULL) ? 1:2;
length = (typeB->choice.setup->maxLength==NULL) ? 1:2;
nbitsB = type + length + 2;
if (typeA == NULL) return nbitsB;
}
nbits = (nbitsA > nbitsB) ? nbitsA : nbitsB;
return nbits;
}
uint16_t nr_dci_size(NR_CellGroupConfig_t *secondaryCellGroup,
dci_pdu_rel15_t *dci_pdu,
nr_dci_format_t format,
nr_rnti_type_t rnti_type,
uint16_t N_RB,
int bwp_id) {
uint16_t size = 0;
NR_BWP_Downlink_t *bwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[bwp_id-1];
NR_BWP_Uplink_t *ubwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->uplinkConfig->uplinkBWP_ToAddModList->list.array[bwp_id-1];
NR_PDSCH_Config_t *pdsch_config = bwp->bwp_Dedicated->pdsch_Config->choice.setup;
switch(format) {
/*Only sizes for 0_0 and 1_0 are correct at the moment*/
case NR_UL_DCI_FORMAT_0_0:
/// fixed: Format identifier 1, Hop flag 1, MCS 5, NDI 1, RV 2, HARQ PID 4, PUSCH TPC 2 Time Domain assgnmt 4 --20
size += 20;
size += (uint8_t)ceil( log2( (N_RB*(N_RB+1))>>1 ) ); // Freq domain assignment -- hopping scenario to be updated
size += nr_dci_size(secondaryCellGroup,dci_pdu,NR_DL_DCI_FORMAT_1_0, rnti_type, N_RB, bwp_id) - size; // Padding to match 1_0 size
// UL/SUL indicator assumed to be 0
break;
case NR_UL_DCI_FORMAT_0_1:
/// fixed: Format identifier 1, MCS 5, NDI 1, RV 2, HARQ PID 4, PUSCH TPC 2, SRS request 2 --17
size += 17;
// Carrier indicator
// UL/SUL indicator
// BWP Indicator
// Freq domain assignment
// Time domain assignment
// VRB to PRB mapping
// Frequency Hopping flag
// 1st DAI
// 2nd DAI
// SRS resource indicator
// Precoding info and number of layers
// Antenna ports
// CSI request
// CBGTI
// PTRS - DMRS association
// beta offset indicator
// DMRS sequence init
break;
case NR_DL_DCI_FORMAT_1_0:
/// fixed: Format identifier 1, VRB2PRB 1, MCS 5, NDI 1, RV 2, HARQ PID 4, DAI 2, PUCCH TPC 2, PUCCH RInd 3, PDSCH to HARQ TInd 3 Time Domain assgnmt 4 -- 28
size += 28;
size += (uint8_t)ceil( log2( (N_RB*(N_RB+1))>>1 ) ); // Freq domain assignment
break;
case NR_DL_DCI_FORMAT_1_1:
// General note: 0 bits condition is ignored as default nbits is 0.
// Format identifier
size = 1;
// Carrier indicator
if (secondaryCellGroup->spCellConfig->spCellConfigDedicated->crossCarrierSchedulingConfig != NULL) {
dci_pdu->carrier_indicator.nbits=3;
size += dci_pdu->carrier_indicator.nbits;
}
// BWP Indicator
uint8_t n_dl_bwp = secondaryCellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.count;
if (n_dl_bwp < 2)
dci_pdu->bwp_indicator.nbits = n_dl_bwp;
else
dci_pdu->bwp_indicator.nbits = 2;
size += dci_pdu->bwp_indicator.nbits;
// Freq domain assignment
long rbg_size_config = secondaryCellGroup->spCellConfig->spCellConfigDedicated->initialDownlinkBWP->pdsch_Config->choice.setup->rbg_Size;
uint16_t numRBG = getNRBG(NRRIV2BW(bwp->bwp_Common->genericParameters.locationAndBandwidth,275),
NRRIV2PRBOFFSET(bwp->bwp_Common->genericParameters.locationAndBandwidth,275),
rbg_size_config);
if (pdsch_config->resourceAllocation == 0)
dci_pdu->frequency_domain_assignment.nbits = numRBG;
else if (pdsch_config->resourceAllocation == 1)
dci_pdu->frequency_domain_assignment.nbits = (int)ceil( log2( (N_RB*(N_RB+1))>>1 ) );
else
dci_pdu->frequency_domain_assignment.nbits = ((int)ceil( log2( (N_RB*(N_RB+1))>>1 ) )>numRBG) ? (int)ceil( log2( (N_RB*(N_RB+1))>>1 ) )+1 : numRBG+1;
size += dci_pdu->frequency_domain_assignment.nbits;
// Time domain assignment (see table 5.1.2.1.1-1 in 38.214
int num_entries;
if (pdsch_config->pdsch_TimeDomainAllocationList==NULL) {
if (bwp->bwp_Common->pdsch_ConfigCommon->choice.setup->pdsch_TimeDomainAllocationList==NULL)
num_entries = 16; // num of entries in default table
else
num_entries = bwp->bwp_Common->pdsch_ConfigCommon->choice.setup->pdsch_TimeDomainAllocationList->list.count;
}
else
num_entries = pdsch_config->pdsch_TimeDomainAllocationList->choice.setup->list.count;
dci_pdu->time_domain_assignment.nbits = (int)ceil(log2(num_entries));
size += dci_pdu->time_domain_assignment.nbits;
// VRB to PRB mapping
if ((pdsch_config->resourceAllocation == 1) && (bwp->bwp_Dedicated->pdsch_Config->choice.setup->vrb_ToPRB_Interleaver != NULL)) {
dci_pdu->vrb_to_prb_mapping.nbits = 1;
size += dci_pdu->vrb_to_prb_mapping.nbits;
}
// PRB bundling size indicator
if (pdsch_config->prb_BundlingType.present == NR_PDSCH_Config__prb_BundlingType_PR_dynamicBundling) {
dci_pdu->prb_bundling_size_indicator.nbits = 1;
size += dci_pdu->prb_bundling_size_indicator.nbits;
}
// Rate matching indicator
NR_RateMatchPatternGroup_t *group1 = pdsch_config->rateMatchPatternGroup1;
NR_RateMatchPatternGroup_t *group2 = pdsch_config->rateMatchPatternGroup2;
if ((group1 != NULL) && (group2 != NULL))
dci_pdu->rate_matching_indicator.nbits = 2;
if ((group1 != NULL) != (group2 != NULL))
dci_pdu->rate_matching_indicator.nbits = 1;
size += dci_pdu->rate_matching_indicator.nbits;
// ZP CSI-RS trigger
if (pdsch_config->aperiodic_ZP_CSI_RS_ResourceSetsToAddModList != NULL) {
uint8_t nZP = pdsch_config->aperiodic_ZP_CSI_RS_ResourceSetsToAddModList->list.count;
dci_pdu->zp_csi_rs_trigger.nbits = (int)ceil(log2(nZP+1));
}
size += dci_pdu->zp_csi_rs_trigger.nbits;
// TB1- MCS 5, NDI 1, RV 2
size += 8;
// TB2
long *maxCWperDCI = pdsch_config->maxNrofCodeWordsScheduledByDCI;
if ((maxCWperDCI != NULL) && (*maxCWperDCI == 2)) {
size += 8;
}
// HARQ PID
size += 4;
// DAI
if (secondaryCellGroup->physicalCellGroupConfig->pdsch_HARQ_ACK_Codebook == NR_PhysicalCellGroupConfig__pdsch_HARQ_ACK_Codebook_dynamic) { // FIXME in case of more than one serving cell
dci_pdu->dai[0].nbits = 2;
size += dci_pdu->dai[0].nbits;
}
// TPC PUCCH
size += 2;
// PUCCH resource indicator
size += 3;
// PDSCH to HARQ timing indicator
uint8_t I = ubwp->bwp_Dedicated->pucch_Config->choice.setup->dl_DataToUL_ACK->list.count;
dci_pdu->pdsch_to_harq_feedback_timing_indicator.nbits = (int)ceil(log2(I));
size += dci_pdu->pdsch_to_harq_feedback_timing_indicator.nbits;
// Antenna ports
NR_SetupRelease_DMRS_DownlinkConfig_t *typeA = pdsch_config->dmrs_DownlinkForPDSCH_MappingTypeA;
NR_SetupRelease_DMRS_DownlinkConfig_t *typeB = pdsch_config->dmrs_DownlinkForPDSCH_MappingTypeB;
dci_pdu->antenna_ports.nbits = getAntPortBitWidth(typeA,typeB);
size += dci_pdu->antenna_ports.nbits;
// Tx Config Indication
long *isTciEnable = bwp->bwp_Dedicated->pdcch_Config->choice.setup->controlResourceSetToAddModList->list.array[bwp_id-1]->tci_PresentInDCI;
if (isTciEnable != NULL) {
dci_pdu->transmission_configuration_indication.nbits = 3;
size += dci_pdu->transmission_configuration_indication.nbits;
}
// SRS request
if (secondaryCellGroup->spCellConfig->spCellConfigDedicated->supplementaryUplink==NULL)
dci_pdu->srs_request.nbits = 2;
else
dci_pdu->srs_request.nbits = 3;
size += dci_pdu->srs_request.nbits;
// CBGTI
if (secondaryCellGroup->spCellConfig->spCellConfigDedicated->pdsch_ServingCellConfig->choice.setup->codeBlockGroupTransmission != NULL) {
uint8_t maxCBGperTB = (secondaryCellGroup->spCellConfig->spCellConfigDedicated->pdsch_ServingCellConfig->choice.setup->codeBlockGroupTransmission->choice.setup->maxCodeBlockGroupsPerTransportBlock + 1) * 2;
long *maxCWperDCI_rrc = pdsch_config->maxNrofCodeWordsScheduledByDCI;
uint8_t maxCW = (maxCWperDCI_rrc == NULL) ? 1 : *maxCWperDCI_rrc;
dci_pdu->cbgti.nbits = maxCBGperTB * maxCW;
size += dci_pdu->cbgti.nbits;
// CBGFI
if (secondaryCellGroup->spCellConfig->spCellConfigDedicated->pdsch_ServingCellConfig->choice.setup->codeBlockGroupTransmission->choice.setup->codeBlockGroupFlushIndicator) {
dci_pdu->cbgfi.nbits = 1;
size += dci_pdu->cbgfi.nbits;
}
}
// DMRS sequence init
size += 1;
break;
case NR_DL_DCI_FORMAT_2_0:
break;
case NR_DL_DCI_FORMAT_2_1:
break;
case NR_DL_DCI_FORMAT_2_2:
break;
case NR_DL_DCI_FORMAT_2_3:
break;
default:
AssertFatal(1==0, "Invalid NR DCI format %d\n", format);
}
return size;
}
int tdd_period_to_num[8] = {500,625,1000,1250,2000,2500,5000,10000};
int is_nr_DL_slot(NR_ServingCellConfigCommon_t *scc,slot_t slot) {
int period,period1,period2=0;
if (scc->tdd_UL_DL_ConfigurationCommon==NULL) return(1);
if (scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1 &&
scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1->dl_UL_TransmissionPeriodicity_v1530)
period1 = 3000+*scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1->dl_UL_TransmissionPeriodicity_v1530;
else
period1 = tdd_period_to_num[scc->tdd_UL_DL_ConfigurationCommon->pattern1.dl_UL_TransmissionPeriodicity];
if (scc->tdd_UL_DL_ConfigurationCommon->pattern2) {
if (scc->tdd_UL_DL_ConfigurationCommon->pattern2->ext1 &&
scc->tdd_UL_DL_ConfigurationCommon->pattern2->ext1->dl_UL_TransmissionPeriodicity_v1530)
period2 = 3000+*scc->tdd_UL_DL_ConfigurationCommon->pattern2->ext1->dl_UL_TransmissionPeriodicity_v1530;
else
period2 = tdd_period_to_num[scc->tdd_UL_DL_ConfigurationCommon->pattern2->dl_UL_TransmissionPeriodicity];
}
period = period1+period2;
int scs=scc->tdd_UL_DL_ConfigurationCommon->referenceSubcarrierSpacing;
int slots=period*(1<<scs)/1000;
int slots1=period1*(1<<scs)/1000;
int slot_in_period = slot % slots;
if (slot_in_period < slots1) return(slot_in_period <= scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofDownlinkSlots ? 1 : 0);
else return(slot_in_period <= slots1+scc->tdd_UL_DL_ConfigurationCommon->pattern2->nrofDownlinkSlots ? 1 : 0);
}
int is_nr_UL_slot(NR_ServingCellConfigCommon_t *scc,slot_t slot) {
int period,period1,period2=0;
if (scc->tdd_UL_DL_ConfigurationCommon==NULL) return(1);
if (scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1 &&
scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1->dl_UL_TransmissionPeriodicity_v1530)
period1 = 3000+*scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1->dl_UL_TransmissionPeriodicity_v1530;
else
period1 = tdd_period_to_num[scc->tdd_UL_DL_ConfigurationCommon->pattern1.dl_UL_TransmissionPeriodicity];
if (scc->tdd_UL_DL_ConfigurationCommon->pattern2) {
if (scc->tdd_UL_DL_ConfigurationCommon->pattern2->ext1 &&
scc->tdd_UL_DL_ConfigurationCommon->pattern2->ext1->dl_UL_TransmissionPeriodicity_v1530)
period2 = 3000+*scc->tdd_UL_DL_ConfigurationCommon->pattern2->ext1->dl_UL_TransmissionPeriodicity_v1530;
else
period2 = tdd_period_to_num[scc->tdd_UL_DL_ConfigurationCommon->pattern2->dl_UL_TransmissionPeriodicity];
}
period = period1+period2;
int scs=scc->tdd_UL_DL_ConfigurationCommon->referenceSubcarrierSpacing;
int slots=period*(1<<scs)/1000;
int slots1=period1*(1<<scs)/1000;
int slot_in_period = slot % slots;
if (slot_in_period < slots1) return(slot_in_period >= scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofDownlinkSlots ? 1 : 0);
else return(slot_in_period >= slots1+scc->tdd_UL_DL_ConfigurationCommon->pattern2->nrofDownlinkSlots ? 1 : 0);
}
int16_t fill_dmrs_mask(NR_PDSCH_Config_t *pdsch_Config,int dmrs_TypeA_Position,int NrOfSymbols) {
int l0;
if (dmrs_TypeA_Position == NR_ServingCellConfigCommon__dmrs_TypeA_Position_pos2) l0=2;
else if (dmrs_TypeA_Position == NR_ServingCellConfigCommon__dmrs_TypeA_Position_pos3) l0=3;
else AssertFatal(1==0,"Illegal dmrs_TypeA_Position %d\n",(int)dmrs_TypeA_Position);
if (pdsch_Config == NULL) { // Initial BWP
return(1<<l0);
}
else {
if (pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA &&
pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA->present == NR_SetupRelease_DMRS_DownlinkConfig_PR_setup) {
// Relative to start of slot
NR_DMRS_DownlinkConfig_t *dmrs_config = (NR_DMRS_DownlinkConfig_t *)pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup;
AssertFatal(NrOfSymbols>1 && NrOfSymbols < 15,"Illegal NrOfSymbols %d\n",NrOfSymbols);
int pos2=0;
if (dmrs_config->maxLength == NULL) {
// this is Table 7.4.1.1.2-3: PDSCH DM-RS positions l for single-symbol DM-RS
if (dmrs_config->dmrs_AdditionalPosition == NULL) pos2=1;
else if (dmrs_config->dmrs_AdditionalPosition && *dmrs_config->dmrs_AdditionalPosition == NR_DMRS_DownlinkConfig__dmrs_AdditionalPosition_pos0 )
return(1<<l0);
switch (NrOfSymbols) {
case 2 :
case 3 :
case 4 :
case 5 :
case 6 :
case 7 :
AssertFatal(1==0,"Incoompatible NrOfSymbols %d and dmrs_Additional_Position %d\n",
NrOfSymbols,(int)*dmrs_config->dmrs_AdditionalPosition);
break;
case 8 :
case 9:
return(1<<l0 | 1<<7);
break;
case 10:
case 11:
if (*dmrs_config->dmrs_AdditionalPosition==NR_DMRS_DownlinkConfig__dmrs_AdditionalPosition_pos1)
return(1<<l0 | 1<<9);
else
return(1<<l0 | 1<<6 | 1<<9);
break;
case 12:
if (*dmrs_config->dmrs_AdditionalPosition==NR_DMRS_DownlinkConfig__dmrs_AdditionalPosition_pos1)
return(1<<l0 | 1<<9);
else if (pos2==1)
return(1<<l0 | 1<<6 | 1<<9);
else if (*dmrs_config->dmrs_AdditionalPosition==NR_DMRS_DownlinkConfig__dmrs_AdditionalPosition_pos3)
return(1<<l0 | 1<<5 | 1<<8 | 1<<11);
break;
case 13:
case 14:
if (*dmrs_config->dmrs_AdditionalPosition==NR_DMRS_DownlinkConfig__dmrs_AdditionalPosition_pos1)
return(1<<l0 | 1<<11);
else if (pos2==1)
return(1<<l0 | 1<<7 | 1<<11);
else if (*dmrs_config->dmrs_AdditionalPosition==NR_DMRS_DownlinkConfig__dmrs_AdditionalPosition_pos3)
return(1<<l0 | 1<<5 | 1<<8 | 1<<11);
break;
}
}
else {
// Table 7.4.1.1.2-4: PDSCH DM-RS positions l for double-symbol DM-RS.
AssertFatal(NrOfSymbols>3,"Illegal NrOfSymbols %d for len2 DMRS\n",NrOfSymbols);
if (NrOfSymbols < 10) return(1<<l0);
if (NrOfSymbols < 13 && *dmrs_config->dmrs_AdditionalPosition==NR_DMRS_DownlinkConfig__dmrs_AdditionalPosition_pos0) return(1<<l0);
if (NrOfSymbols < 13 && *dmrs_config->dmrs_AdditionalPosition!=NR_DMRS_DownlinkConfig__dmrs_AdditionalPosition_pos0) return(1<<l0 | 1<<8);
if (*dmrs_config->dmrs_AdditionalPosition!=NR_DMRS_DownlinkConfig__dmrs_AdditionalPosition_pos0) return(1<<l0);
if (*dmrs_config->dmrs_AdditionalPosition!=NR_DMRS_DownlinkConfig__dmrs_AdditionalPosition_pos1) return(1<<l0 | 1<<10);
}
}
else if (pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeB &&
pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA->present == NR_SetupRelease_DMRS_DownlinkConfig_PR_setup) {
// Relative to start of PDSCH resource
AssertFatal(1==0,"TypeB DMRS not supported yet\n");
}
}
AssertFatal(1==0,"Shouldn't get here\n");
return(-1);
}
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