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OpenXG-RAN
Commit 991e5ad4 authored by kn.raju's avatar kn.raju Committed by Anes Rose Rigiel Antony
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Scheduling and handling of SSB-RO

parent f7dc17ec
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Showing with 517 additions and 83 deletions
executables/nr-gnb.c
View file @ 991e5ad4
......@@ -203,11 +203,7 @@ static inline int rxtx(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx, int frame_t
// TODO: check if this is correct for PARALLEL_RU_L1_TRX_SPLIT
// Do PRACH RU processing
int prach_id=find_nr_prach(gNB,frame_rx,slot_rx,0,SEARCH_EXIST);
if (prach_id>=0) {
L1_nr_prach_procedures(gNB,frame_rx,slot_rx,&gNB->prach_vars.list[prach_id].pdu);
gNB->prach_vars.list[prach_id].frame=-1;
}
L1_nr_prach_procedures(gNB,frame_rx,slot_rx);
phy_procedures_gNB_uespec_RX(gNB, frame_rx, slot_rx);
}
......
executables/nr-ru.c
View file @ 991e5ad4
......@@ -1582,6 +1582,8 @@ void *ru_thread( void *param ) {
(void*)ru->common.rxdataF[aa], fp->symbols_per_slot*fp->ofdm_symbol_size*sizeof(int32_t));
// Do PRACH RU processing
for(i = 0;i < NUMBER_OF_NR_RU_PRACH_MAX; i++) {
int prach_id=find_nr_prach_ru(ru,proc->frame_rx,proc->tti_rx,SEARCH_EXIST);
if (prach_id>=0) {
rx_nr_prach_ru(ru,
......@@ -1592,6 +1594,7 @@ void *ru_thread( void *param ) {
free_nr_ru_prach_entry(ru,prach_id);
}
}
}
// At this point, all information for subframe has been received on FH interface
......
nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface_scf.h
View file @ 991e5ad4
......@@ -385,7 +385,6 @@ typedef struct
typedef struct
{
uint8_t num_prach_fd_occasions;
nfapi_uint16_tlv_t prach_root_sequence_index;//Starting logical root sequence index, 𝑖, equivalent to higher layer parameter prach-RootSequenceIndex [38.211, sec 6.3.3.1] Value: 0 -> 837
nfapi_uint8_tlv_t num_root_sequences;//Number of root sequences for a particular FD occasion that are required to generate the necessary number of preambles
nfapi_uint16_tlv_t k1;//Frequency offset (from UL bandwidth part) for each FD. [38.211, sec 6.3.3.2] Value: from 0 to 272
......
openair1/PHY/INIT/nr_init.c
View file @ 991e5ad4
......@@ -487,12 +487,14 @@ void nr_phy_config_request(NR_PHY_Config_t *phy_config) {
fd_occasion = 0;
nfapi_nr_prach_config_t *prach_config = &gNB_config->prach_config;
short_sequence = prach_config->prach_sequence_length.value;
// for(fd_occasion = 0; fd_occasion <= prach_config->num_prach_fd_occasions.value ; fd_occasion) { // TODO Need to handle for msg1-fdm > 1
num_sequences = prach_config->num_prach_fd_occasions_list[fd_occasion].num_root_sequences.value;
rootSequenceIndex = prach_config->num_prach_fd_occasions_list[fd_occasion].prach_root_sequence_index.value;
compute_nr_prach_seq(short_sequence, num_sequences, rootSequenceIndex, RC.gNB[Mod_id]->X_u);
// }
RC.gNB[Mod_id]->configured = 1;
find_SSB_and_RO_available(Mod_id);
LOG_I(PHY,"gNB %d configured\n",Mod_id);
}
......
openair1/PHY/NR_TRANSPORT/nr_prach.c
View file @ 991e5ad4
......@@ -46,18 +46,17 @@ void init_prach_list(PHY_VARS_gNB *gNB) {
for (int i=0; i<NUMBER_OF_NR_PRACH_MAX; i++) gNB->prach_vars.list[i].frame=-1;
}
int16_t find_nr_prach(PHY_VARS_gNB *gNB,int frame,int slot, int numRA, find_type_t type) {
int16_t find_nr_prach(PHY_VARS_gNB *gNB,int frame, int slot, find_type_t type) {
uint16_t i;
int16_t first_free_index=-1;
AssertFatal(gNB!=NULL,"gNB is null\n");
for (i=0; i<NUMBER_OF_NR_PRACH_MAX; i++) {
LOG_D(PHY,"searching for PRACH in %d.%d with numRA %d: prach_index %d=> %d.%d numRA %d\n", frame,slot,numRA,i,
gNB->prach_vars.list[i].frame,gNB->prach_vars.list[i].slot,gNB->prach_vars.list[i].pdu.num_ra);
LOG_D(PHY,"searching for PRACH in %d.%d prach_index %d=> %d.%d\n", frame,slot,i,
gNB->prach_vars.list[i].frame,gNB->prach_vars.list[i].slot);
if ((gNB->prach_vars.list[i].frame == frame) &&
(gNB->prach_vars.list[i].slot == slot) &&
(gNB->prach_vars.list[i].pdu.num_ra == numRA)) return i;
(gNB->prach_vars.list[i].slot == slot)) return i;
else if ((gNB->prach_vars.list[i].frame == -1) && (first_free_index==-1)) first_free_index=i;
}
if (type == SEARCH_EXIST) return -1;
......@@ -70,7 +69,7 @@ void nr_fill_prach(PHY_VARS_gNB *gNB,
int Slot,
nfapi_nr_prach_pdu_t *prach_pdu) {
int prach_id = find_nr_prach(gNB,SFN,Slot,prach_pdu->num_ra,SEARCH_EXIST_OR_FREE);
int prach_id = find_nr_prach(gNB,SFN,Slot,SEARCH_EXIST_OR_FREE);
AssertFatal( (prach_id>=0) && (prach_id<NUMBER_OF_NR_PRACH_MAX),
"illegal or no prach_id found!!! numRA %d prach_id %d\n",prach_pdu->num_ra,prach_id);
......@@ -571,13 +570,11 @@ void rx_nr_prach(PHY_VARS_gNB *gNB,
fp = &gNB->frame_parms;
nb_rx = gNB->gNB_config.carrier_config.num_rx_ant.value;
rootSequenceIndex = cfg->num_prach_fd_occasions_list[0].prach_root_sequence_index.value;
numrootSequenceIndex = cfg->num_prach_fd_occasions_list[0].num_root_sequences.value;
rootSequenceIndex = cfg->num_prach_fd_occasions_list[prach_pdu->num_ra].prach_root_sequence_index.value;
numrootSequenceIndex = cfg->num_prach_fd_occasions_list[prach_pdu->num_ra].num_root_sequences.value;
NCS = prach_pdu->num_cs;//cfg->num_prach_fd_occasions_list[0].prach_zero_corr_conf.value;
int prach_sequence_length = cfg->prach_sequence_length.value;
int msg1_frequencystart = cfg->num_prach_fd_occasions_list[0].k1.value;
int msg1_frequencystart = cfg->num_prach_fd_occasions_list[prach_pdu->num_ra].k1.value;
// int num_unused_root_sequences = cfg->num_prach_fd_occasions_list[0].num_unused_root_sequences.value;
// cfg->num_prach_fd_occasions_list[0].unused_root_sequences_list
......
openair1/PHY/NR_TRANSPORT/nr_transport_proto.h
View file @ 991e5ad4
......@@ -306,7 +306,7 @@ void nr_fill_prach_ru(RU_t *ru,
int Slot,
nfapi_nr_prach_pdu_t *prach_pdu);
int16_t find_nr_prach(PHY_VARS_gNB *gNB,int frame,int slot, int numRA, find_type_t type);
int16_t find_nr_prach(PHY_VARS_gNB *gNB,int frame,int slot, find_type_t type);
int16_t find_nr_prach_ru(RU_t *ru,int frame,int slot, find_type_t type);
NR_gNB_PUCCH_t *new_gNB_pucch(void);
......
openair1/SCHED_NR/nr_prach_procedures.c
View file @ 991e5ad4
......@@ -52,11 +52,9 @@ extern uint8_t nfapi_mode;
extern int oai_nfapi_nr_rach_ind(nfapi_rach_indication_t *rach_ind);
void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot,
nfapi_nr_prach_pdu_t *prach_pdu) {
void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot) {
uint16_t max_preamble[4]={0},max_preamble_energy[4]={0},max_preamble_delay[4]={0};
uint16_t i;
gNB->UL_INFO.rach_ind.number_of_pdus=0;
......@@ -70,13 +68,19 @@ void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot,
for (i=0;i<gNB->num_RU;i++) {
for (int i=0;i<gNB->num_RU;i++) {
ru=gNB->RU_list[i];
for (ru_aa=0,aa=0;ru_aa<ru->nb_rx;ru_aa++,aa++) {
gNB->prach_vars.rxsigF[aa] = gNB->RU_list[i]->prach_rxsigF[ru_aa];
}
}
nfapi_nr_prach_pdu_t *prach_pdu;
for(int i = 0; i < NUMBER_OF_NR_PRACH_MAX; i++) {
int prach_id=find_nr_prach(gNB,frame,slot,SEARCH_EXIST);
if (prach_id>=0) {
prach_pdu = &gNB->prach_vars.list[prach_id].pdu;
rx_nr_prach(gNB,
prach_pdu,
frame,
......@@ -86,6 +90,7 @@ void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot,
&max_preamble_delay[0]
);
gNB->prach_vars.list[prach_id].frame=-1;
LOG_D(PHY,"[RAPROC] Frame %d, slot %d : Most likely preamble %d, energy %d dB delay %d (prach_energy counter %d)\n",
frame,slot,
max_preamble[0],
......@@ -109,30 +114,30 @@ void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot,
T_INT(max_preamble[0]), T_INT(max_preamble_energy[0]), T_INT(max_preamble_delay[0]));
gNB->UL_INFO.rach_ind.number_of_pdus = 1;
gNB->UL_INFO.rach_ind.pdu_list = &gNB->prach_pdu_indication_list[0];
gNB->UL_INFO.rach_ind.sfn = frame;
gNB->UL_INFO.rach_ind.number_of_pdus += 1;
gNB->UL_INFO.rach_ind.sfn = frame;
gNB->UL_INFO.rach_ind.slot = slot;
gNB->UL_INFO.rach_ind.pdu_list = &gNB->prach_pdu_indication_list[i];
gNB->prach_pdu_indication_list[0].phy_cell_id = gNB->gNB_config.cell_config.phy_cell_id.value;
gNB->prach_pdu_indication_list[0].symbol_index = prach_pdu->prach_start_symbol; // FIXME to be changed for multi-ssb (this is only the start symbol of first occasion)
gNB->prach_pdu_indication_list[0].slot_index = slot;
gNB->prach_pdu_indication_list[0].freq_index = prach_pdu->num_ra;
gNB->prach_pdu_indication_list[0].avg_rssi = (max_preamble_energy[0]<631) ? (128+(max_preamble_energy[0]/5)) : 254;
gNB->prach_pdu_indication_list[0].avg_snr = 0xff; // invalid for now
gNB->prach_pdu_indication_list[0].num_preamble = 1;
gNB->prach_pdu_indication_list[0].preamble_list = gNB->preamble_list;
gNB->prach_pdu_indication_list[0].preamble_list[0].preamble_index = max_preamble[0];
gNB->prach_pdu_indication_list[0].preamble_list[0].timing_advance = max_preamble_delay[0];
gNB->prach_pdu_indication_list[0].preamble_list[0].preamble_pwr = 0xffffffff;
gNB->prach_pdu_indication_list[i].phy_cell_id = gNB->gNB_config.cell_config.phy_cell_id.value;
gNB->prach_pdu_indication_list[i].symbol_index = prach_pdu->prach_start_symbol; // FIXME to be changed for multi-ssb (this is only the start symbol of first occasion)
gNB->prach_pdu_indication_list[i].slot_index = slot;
gNB->prach_pdu_indication_list[i].freq_index = prach_pdu->num_ra;
gNB->prach_pdu_indication_list[i].avg_rssi = (max_preamble_energy[0]<631) ? (128+(max_preamble_energy[0]/5)) : 254;
gNB->prach_pdu_indication_list[i].avg_snr = 0xff; // invalid for now
gNB->prach_pdu_indication_list[i].num_preamble = 1;
gNB->prach_pdu_indication_list[i].preamble_list = gNB->preamble_list;
gNB->prach_pdu_indication_list[i].preamble_list[0].preamble_index = max_preamble[0];
gNB->prach_pdu_indication_list[i].preamble_list[0].timing_advance = max_preamble_delay[0];
gNB->prach_pdu_indication_list[i].preamble_list[0].preamble_pwr = 0xffffffff;
}
gNB->measurements.prach_I0 = ((gNB->measurements.prach_I0*900)>>10) + ((max_preamble_energy[0]*124)>>10);
if (frame==0) LOG_I(PHY,"prach_I0 = %d.%d dB\n",gNB->measurements.prach_I0/10,gNB->measurements.prach_I0%10);
if (gNB->prach_energy_counter < 100) gNB->prach_energy_counter++;
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PRACH_RX,0);
}
openair1/SCHED_NR/sched_nr.h
View file @ 991e5ad4
......@@ -39,7 +39,7 @@ void nr_set_ssb_first_subcarrier(nfapi_nr_config_request_scf_t *cfg, NR_DL_FRAME
void phy_procedures_gNB_TX(PHY_VARS_gNB *gNB, int frame_tx, int slot_tx, int do_meas);
void phy_procedures_gNB_common_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx);
void phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx);
void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot,nfapi_nr_prach_pdu_t *prach_pdu);
void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot);
void nr_common_signal_procedures (PHY_VARS_gNB *gNB,int frame, int slot);
void nr_feptx_ofdm(RU_t *ru,int frame_tx,int tti_tx);
void nr_feptx_ofdm_2thread(RU_t *ru,int frame_tx,int tti_tx);
......
openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c
View file @ 991e5ad4
......@@ -86,7 +86,71 @@ uint16_t get_NCS(uint8_t index, uint16_t format0, uint8_t restricted_set_config)
}
}
//38.211 Table 6.3.3.2-1
int16_t table_6_3_3_2_1[16][5] = {
//Length_RA, delta_f_RA_PRACH, delta_f_PUSCH, N_RA_RB, kbar
{ 839, 1.25, 15, 6, 7},
{ 839, 1.25, 30, 3, 1},
{ 839, 1.25, 60, 2, 133},
{ 839, 5, 15, 24, 12},
{ 839, 5, 30, 12, 10},
{ 839, 5, 60, 6, 7},
{ 139, 15, 15, 12, 2},
{ 139, 15, 30, 6, 2},
{ 139, 15, 60, 3, 2},
{ 139, 30, 15, 24, 2},
{ 139, 30, 30, 12, 2},
{ 139, 30, 60, 6, 2},
{ 139, 60, 60, 12, 2},
{ 139, 60, 120, 6, 2},
{ 139, 120, 60, 24, 2},
{ 139, 120, 120, 12, 2}
};
/* Function to get number of RBs required for prach occasion based on
* 38.211 Table 6.3.3.2-1 */
int16_t get_N_RA_RB (int delta_f_RA_PRACH,int delta_f_PUSCH) {
int8_t index = 0;
switch(delta_f_RA_PRACH) {
case 0 : index = 6;
if (delta_f_PUSCH == 0)
index += 0;
else if(delta_f_PUSCH == 1)
index += 1;
else
index += 2;
break;
case 1 : index = 9;
if (delta_f_PUSCH == 0)
index += 0;
else if(delta_f_PUSCH == 1)
index += 1;
else
index += 2;
break;
case 2 : index = 11;
if (delta_f_PUSCH == 2)
index += 0;
else
index += 1;
break;
case 3: index = 13;
if (delta_f_PUSCH == 2)
index += 0;
else
index += 1;
break;
default : index = 10;/*30khz prach scs and 30khz pusch scs*/
}
return table_6_3_3_2_1[index][3];
}
// Table 6.3.3.2-2: Random access configurations for FR1 and paired spectrum/supplementary uplink
// the column 5, (SFN_nbr is a bitmap where we set bit to '1' in the position of the subframe where the RACH can be sent.
// E.g. in row 4, and column 5 we have set value 512 ('1000000000') which means RACH can be sent at subframe 9.
......@@ -955,6 +1019,107 @@ void find_monitoring_periodicity_offset_common(NR_SearchSpace_t *ss,
}
}
int get_nr_prach_occasion_info_from_index(uint8_t index,
uint32_t pointa,
uint8_t mu,
uint8_t unpaired,
uint16_t *format,
uint8_t *start_symbol,
uint8_t *N_t_slot,
uint8_t *N_dur,
uint8_t *N_RA_slot,
uint16_t *N_RA_sfn,
uint8_t *max_association_period) {
int x;
int64_t s_map;
uint8_t format2 = 0xff;
if (pointa > 2016666) { //FR2
x = table_6_3_3_2_4_prachConfig_Index[index][2];
s_map = table_6_3_3_2_4_prachConfig_Index[index][5];
for(int i = 0; i < 64 ;i++) {
if ( (s_map >> i) & 0x01) {
(*N_RA_sfn)++;
}
}
*N_RA_slot = table_6_3_3_2_4_prachConfig_Index[index][7]; // Number of RACH slots within a subframe
*max_association_period = 160/(x * 10);
if (start_symbol != NULL && N_t_slot != NULL && N_dur != NULL && format != NULL){
*start_symbol = table_6_3_3_2_4_prachConfig_Index[index][6];//multiple prach occasions in diff slot
*N_t_slot = table_6_3_3_2_4_prachConfig_Index[index][8];
*N_dur = table_6_3_3_2_4_prachConfig_Index[index][9];
if (table_6_3_3_2_4_prachConfig_Index[index][1] != -1)
format2 = (uint8_t) table_6_3_3_2_4_prachConfig_Index[index][1];
*format = ((uint8_t) table_6_3_3_2_4_prachConfig_Index[index][0]) | (format2<<8);
LOG_D(MAC,"Getting Total PRACH info from index %d absoluteFrequencyPointA %u mu %u frame_type %u start_symbol %u N_t_slot %u N_dur %u N_RA_sfn = %u\n",
index,
pointa,
mu,
unpaired,
*start_symbol,
*N_t_slot,
*N_dur,
*N_RA_sfn);
}
return 1;
}
else {
if (unpaired) {
x = table_6_3_3_2_3_prachConfig_Index[index][2];
s_map = table_6_3_3_2_3_prachConfig_Index[index][4];
for(int i = 0; i < 64 ;i++) {
if ( (s_map >> i) & 0x01) {
(*N_RA_sfn)++;
}
}
*N_RA_slot = table_6_3_3_2_3_prachConfig_Index[index][6]; // Number of RACH slots within a subframe
*max_association_period = 160/(x * 10);
if (start_symbol != NULL && N_t_slot != NULL && N_dur != NULL && format != NULL){
*start_symbol = table_6_3_3_2_3_prachConfig_Index[index][5];
*N_t_slot = table_6_3_3_2_3_prachConfig_Index[index][7];
*N_dur = table_6_3_3_2_3_prachConfig_Index[index][8];
if (table_6_3_3_2_3_prachConfig_Index[index][1] != -1)
format2 = (uint8_t) table_6_3_3_2_3_prachConfig_Index[index][1];
*format = ((uint8_t) table_6_3_3_2_3_prachConfig_Index[index][0]) | (format2<<8);
LOG_D(MAC,"Getting Total PRACH info from index %d (col %lu ) absoluteFrequencyPointA %u mu %u frame_type %u start_symbol %u N_t_slot %u N_dur %u N_RA_sfn = %u\n",
index, table_6_3_3_2_3_prachConfig_Index[index][6],
pointa,
mu,
unpaired,
*start_symbol,
*N_t_slot,
*N_dur,
*N_RA_sfn);
}
return 1;
}
else { // FDD
x = table_6_3_3_2_2_prachConfig_Index[index][2];
s_map = table_6_3_3_2_2_prachConfig_Index[index][4];
*N_RA_slot = table_6_3_3_2_2_prachConfig_Index[index][6];
if (start_symbol != NULL && N_t_slot != NULL && N_dur != NULL && format != NULL){
*start_symbol = table_6_3_3_2_2_prachConfig_Index[index][5];
*N_t_slot = table_6_3_3_2_2_prachConfig_Index[index][7];
*N_dur = table_6_3_3_2_2_prachConfig_Index[index][8];
if (table_6_3_3_2_2_prachConfig_Index[index][1] != -1)
format2 = (uint8_t) table_6_3_3_2_2_prachConfig_Index[index][1];
*format = ((uint8_t) table_6_3_3_2_2_prachConfig_Index[index][0]) | (format2<<8);
LOG_D(MAC,"Getting Total PRACH info from index %d absoluteFrequencyPointA %u mu %u frame_type %u start_symbol %u N_t_slot %u N_dur %u \n",
index,
pointa,
mu,
unpaired,
*start_symbol,
*N_t_slot,
*N_dur);
}
return 1;
}
}
}
int get_nr_prach_info_from_index(uint8_t index,
int frame,
int slot,
......@@ -964,7 +1129,9 @@ int get_nr_prach_info_from_index(uint8_t index,
uint16_t *format,
uint8_t *start_symbol,
uint8_t *N_t_slot,
uint8_t *N_dur) {
uint8_t *N_dur,
uint16_t *RA_sfn_index,
uint8_t *N_RA_slot) {
int x,y;
int64_t s_map;
......@@ -980,9 +1147,17 @@ int get_nr_prach_info_from_index(uint8_t index,
if ( (frame%x)==y || (frame%x)==y2 ) {
slot_60khz = slot >> (mu-2); // in table slots are numbered wrt 60kHz
s_map = table_6_3_3_2_4_prachConfig_Index[index][5];
if ((s_map >> slot_60khz) & 0x01 ) {
for(int i = 0; i < slot_60khz ;i++) {
if ( (s_map >> i) & 0x01) {
(*RA_sfn_index)++;
}
}
}
if ( ((s_map>>slot_60khz)&0x01) ) {
*N_RA_slot = table_6_3_3_2_4_prachConfig_Index[index][7]; // Number of RACH slots within a subframe
if (mu == 3) {
if ( (table_6_3_3_2_4_prachConfig_Index[index][7] == 1) && (slot%2 == 0) )
if ( (*N_RA_slot == 1) && (slot%2 == 0) )
return 0; // no prach in even slots @ 120kHz for 1 prach per 60khz slot
}
if (start_symbol != NULL && N_t_slot != NULL && N_dur != NULL && format != NULL){
......@@ -1018,11 +1193,19 @@ int get_nr_prach_info_from_index(uint8_t index,
if ( (frame%x)==y ) {
subframe = slot >> mu;
s_map = table_6_3_3_2_3_prachConfig_Index[index][4];
if ((s_map >> subframe) & 0x01 ) {
for(int i = 0; i < subframe ;i++) {
if ( (s_map >> i) & 0x01) {
(*RA_sfn_index)++;
}
}
}
if ( (s_map>>subframe)&0x01 ) {
*N_RA_slot = table_6_3_3_2_3_prachConfig_Index[index][6]; // Number of RACH slots within a subframe
if (mu == 1) {
if ( (table_6_3_3_2_3_prachConfig_Index[index][6] <= 1) && (slot%2 == 0) )
return 0; // no prach in even slots @ 30kHz for 1 prach per subframe
}
if ( (*N_RA_slot <= 1) && (slot%2 == 0) )
return 0; // no prach in even slots @ 30kHz for 1 prach per subframe
}
if (start_symbol != NULL && N_t_slot != NULL && N_dur != NULL && format != NULL){
*start_symbol = table_6_3_3_2_3_prachConfig_Index[index][5];
*N_t_slot = table_6_3_3_2_3_prachConfig_Index[index][7];
......@@ -1030,7 +1213,7 @@ int get_nr_prach_info_from_index(uint8_t index,
if (table_6_3_3_2_3_prachConfig_Index[index][1] != -1)
format2 = (uint8_t) table_6_3_3_2_3_prachConfig_Index[index][1];
*format = ((uint8_t) table_6_3_3_2_3_prachConfig_Index[index][0]) | (format2<<8);
LOG_D(MAC,"Frame %d slot %d: Getting PRACH info from index %d (col 6 %ld) absoluteFrequencyPointA %u mu %u frame_type %u start_symbol %u N_t_slot %u N_dur %u \n", frame,
LOG_D(MAC,"Frame %d slot %d: Getting PRACH info from index %d (col 6 %lu) absoluteFrequencyPointA %u mu %u frame_type %u start_symbol %u N_t_slot %u N_dur %u \n", frame,
slot,
index, table_6_3_3_2_3_prachConfig_Index[index][6],
pointa,
......
openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.h
View file @ 991e5ad4
......@@ -98,7 +98,21 @@ int get_nr_prach_info_from_index(uint8_t index,
uint16_t *format,
uint8_t *start_symbol,
uint8_t *N_t_slot,
uint8_t *N_dur);
uint8_t *N_dur,
uint16_t *RA_sfn_index,
uint8_t *N_RA_slot);
int get_nr_prach_occasion_info_from_index(uint8_t index,
uint32_t pointa,
uint8_t mu,
uint8_t unpaired,
uint16_t *format,
uint8_t *start_symbol,
uint8_t *N_t_slot,
uint8_t *N_dur,
uint8_t *N_RA_slot,
uint16_t *N_RA_sfn,
uint8_t *max_association_period);
uint8_t compute_nr_root_seq(NR_RACH_ConfigCommon_t *rach_config,
uint8_t nb_preambles,
......@@ -117,4 +131,5 @@ int32_t get_l_prime(uint8_t duration_in_symbols, uint8_t mapping_type, pusch_dmr
uint8_t get_L_ptrs(uint8_t mcs1, uint8_t mcs2, uint8_t mcs3, uint8_t I_mcs, uint8_t mcs_table);
uint8_t get_K_ptrs(uint16_t nrb0, uint16_t nrb1, uint16_t N_RB);
int16_t get_N_RA_RB (int delta_f_RA_PRACH,int delta_f_PUSCH);
#endif
openair2/LAYER2/NR_MAC_gNB/config.c
View file @ 991e5ad4
......@@ -147,6 +147,10 @@ void config_common(int Mod_idP, int pdsch_AntennaPorts, NR_ServingCellConfigComm
cfg->ssb_config.ss_pbch_power.tl.tag = NFAPI_NR_CONFIG_SS_PBCH_POWER_TAG;
cfg->num_tlv++;
cfg->ssb_config.bch_payload.value = 1;
cfg->ssb_config.bch_payload.tl.tag = NFAPI_NR_CONFIG_BCH_PAYLOAD_TAG;
cfg->num_tlv++;
cfg->ssb_config.scs_common.value = *scc->ssbSubcarrierSpacing;
cfg->ssb_config.scs_common.tl.tag = NFAPI_NR_CONFIG_SCS_COMMON_TAG;
cfg->num_tlv++;
......@@ -192,24 +196,24 @@ void config_common(int Mod_idP, int pdsch_AntennaPorts, NR_ServingCellConfigComm
cfg->prach_config.num_prach_fd_occasions_list = (nfapi_nr_num_prach_fd_occasions_t *) malloc(cfg->prach_config.num_prach_fd_occasions.value*sizeof(nfapi_nr_num_prach_fd_occasions_t));
for (i=0; i<cfg->prach_config.num_prach_fd_occasions.value; i++) {
cfg->prach_config.num_prach_fd_occasions_list[i].num_prach_fd_occasions = i;
// cfg->prach_config.num_prach_fd_occasions_list[i].num_prach_fd_occasions = i;
if (cfg->prach_config.prach_sequence_length.value)
cfg->prach_config.num_prach_fd_occasions_list[i].prach_root_sequence_index.value = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->prach_RootSequenceIndex.choice.l139;
else
cfg->prach_config.num_prach_fd_occasions_list[i].prach_root_sequence_index.value = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->prach_RootSequenceIndex.choice.l839;
cfg->prach_config.num_prach_fd_occasions_list[i].prach_root_sequence_index.tl.tag = NFAPI_NR_CONFIG_PRACH_ROOT_SEQUENCE_INDEX_TAG;
cfg->num_tlv++;
cfg->prach_config.num_prach_fd_occasions_list[i].k1.value = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->rach_ConfigGeneric.msg1_FrequencyStart;
cfg->prach_config.num_prach_fd_occasions_list[i].k1.value = (scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->rach_ConfigGeneric.msg1_FrequencyStart + get_N_RA_RB( *scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg1_SubcarrierSpacing, scc->uplinkConfigCommon->frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing ) * i);
//k1=12(start index BWP) + 12(position within BWP) + 12 (no. of FDM)(RB for PRACH occasion) - 12(no.of RB belongs to BW)/2 + ko(u);
cfg->prach_config.num_prach_fd_occasions_list[i].k1.tl.tag = NFAPI_NR_CONFIG_K1_TAG;
cfg->num_tlv++;
cfg->prach_config.num_prach_fd_occasions_list[i].prach_zero_corr_conf.value = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->rach_ConfigGeneric.zeroCorrelationZoneConfig;
cfg->prach_config.num_prach_fd_occasions_list[i].prach_zero_corr_conf.tl.tag = NFAPI_NR_CONFIG_PRACH_ZERO_CORR_CONF_TAG;
cfg->num_tlv++;
cfg->prach_config.num_prach_fd_occasions_list[i].num_root_sequences.value = compute_nr_root_seq(scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup,
nb_preambles, frame_type);
cfg->prach_config.num_prach_fd_occasions_list[i].num_root_sequences.value = compute_nr_root_seq(scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup,nb_preambles, frame_type);
cfg->prach_config.num_prach_fd_occasions_list[i].num_root_sequences.tl.tag = NFAPI_NR_CONFIG_NUM_ROOT_SEQUENCES_TAG;
cfg->num_tlv++;
//cfg->prach_config.num_prach_fd_occasions_list[i].num_unused_root_sequences.value = ???
cfg->prach_config.num_prach_fd_occasions_list[i].num_unused_root_sequences.value = 1;
}
cfg->prach_config.ssb_per_rach.value = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->present-1;
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
View file @ 991e5ad4
......@@ -442,9 +442,8 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
*/
// This schedules MIB
if((slot_txP == 0) && (frame_txP & 7) == 0){
schedule_nr_mib(module_idP, frame_txP, slot_txP);
}
schedule_nr_mib(module_idP, frame_txP, slot_txP);
if (get_softmodem_params()->phy_test == 0)
nr_schedule_RA(module_idP, frame_txP, slot_txP);
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c
View file @ 991e5ad4
......@@ -47,22 +47,163 @@ const uint8_t nr_slots_per_frame_mac[5] = {10, 20, 40, 80, 160};
uint8_t DELTA[4]= {2,3,4,6};
#define MAX_NUMBER_OF_SSB 64
float ssb_per_rach_occasion[8] = {0.125,0.25,0.5,1,2,4,8};
int16_t ssb_index_from_prach(module_id_t module_idP,
frame_t frameP,
sub_frame_t slotP,
uint16_t preamble_index,
uint8_t freq_index,
uint8_t symbol) {
gNB_MAC_INST *gNB = RC.nrmac[module_idP];
NR_COMMON_channels_t *cc = gNB->common_channels;
NR_ServingCellConfigCommon_t *scc = cc->ServingCellConfigCommon;
nfapi_nr_config_request_scf_t *cfg = &RC.nrmac[module_idP]->config[0];
uint8_t config_index = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->rach_ConfigGeneric.prach_ConfigurationIndex;
uint8_t fdm = cfg->prach_config.num_prach_fd_occasions.value;
uint64_t total_RApreambles = *scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->totalNumberOfRA_Preambles;
float num_ssb_per_RO = ssb_per_rach_occasion[cfg->prach_config.ssb_per_rach.value];
uint16_t start_symbol_index = 0;
uint8_t mu,N_dur,N_t_slot,start_symbol,N_RA_slot;
uint16_t format,RA_sfn_index;
uint16_t prach_occasion_id;
uint8_t num_active_ssb = cc->num_active_ssb;
if (scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg1_SubcarrierSpacing)
mu = *scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg1_SubcarrierSpacing;
else
mu = scc->downlinkConfigCommon->frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing;
get_nr_prach_info_from_index(config_index,
(int)frameP,
(int)slotP,
scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA,
mu,
cc->frame_type,
&format,
&start_symbol,
&N_t_slot,
&N_dur,
&RA_sfn_index,
&N_RA_slot);
uint8_t index ,slot_index = 0;
for (slot_index = 0;slot_index < N_RA_slot; slot_index++) {
if (N_RA_slot <= 1) { //1 PRACH slot in a subframe
if((mu == 1) || (mu == 3))
slot_index = 1; //For scs = 30khz and 120khz
}
for (index=0; index<N_t_slot; index++) {
start_symbol = (start_symbol + index * N_dur + 14 * slot_index) % 14;
if(symbol == start_symbol) {
start_symbol_index = index;
break;
}
}
}
index = 0;
// prach_occasion_id = subframe_index * N_t_slot * N_RA_slot * fdm + N_RA_slot_index * N_t_slot * fdm + freq_index + fdm * start_symbol_index;
prach_occasion_id = (RA_sfn_index + slot_index) * N_t_slot * fdm + start_symbol_index * fdm + freq_index;
//one RO is shared by one or more SSB
if(num_ssb_per_RO <= 1 )
index = (int) (prach_occasion_id / (int)(1/num_ssb_per_RO)) % num_active_ssb;
//one SSB have more than one continuous RO
else if ( num_ssb_per_RO > 1) {
index = (prach_occasion_id * (int)num_ssb_per_RO)% num_active_ssb ;
for(int j = 0;j < num_ssb_per_RO;j++) {
if(preamble_index < (((j+1) * total_RApreambles) / num_ssb_per_RO))
index = index + j;
}
}
LOG_D(MAC, "Frame %d, Slot %d: Prach Occasion id = %d ssb per RO = %f index = %d \n", frameP, slotP, prach_occasion_id, num_ssb_per_RO, index);
return index;
}
//Compute Total active SSBs and RO available
void find_SSB_and_RO_available(module_id_t module_idP) {
gNB_MAC_INST *gNB = RC.nrmac[module_idP];
NR_COMMON_channels_t *cc = gNB->common_channels;
NR_ServingCellConfigCommon_t *scc = cc->ServingCellConfigCommon;
nfapi_nr_config_request_scf_t *cfg = &RC.nrmac[module_idP]->config[0];
uint8_t config_index = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->rach_ConfigGeneric.prach_ConfigurationIndex;
uint8_t mu,N_dur,N_t_slot,start_symbol,N_RA_slot;
uint16_t format,RA_sfn_index,unused_RA_occasion,repetition = 0;
uint8_t num_active_ssb = 0;
uint8_t max_association_period;
if (scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg1_SubcarrierSpacing)
mu = *scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg1_SubcarrierSpacing;
else
mu = scc->downlinkConfigCommon->frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing;
// prach is scheduled according to configuration index and tables 6.3.3.2.2 to 6.3.3.2.4
get_nr_prach_occasion_info_from_index(config_index,
scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA,
mu,
cc->frame_type,
&format,
&start_symbol,
&N_t_slot,
&N_dur,
&N_RA_slot,
&RA_sfn_index,
&max_association_period);
float num_ssb_per_RO = ssb_per_rach_occasion[cfg->prach_config.ssb_per_rach.value];
uint8_t fdm = cfg->prach_config.num_prach_fd_occasions.value;
uint64_t L_ssb = (((uint64_t) cfg->ssb_table.ssb_mask_list[0].ssb_mask.value)<<32) | cfg->ssb_table.ssb_mask_list[1].ssb_mask.value ;
uint32_t total_RA_occasions = RA_sfn_index * N_t_slot * N_RA_slot * fdm;
for(int i = 0;i < 64;i++) {
if ((L_ssb >> (63-i)) & 0x01) { // only if the bit of L_ssb at current ssb index is 1
gNB->SSB_list[num_active_ssb].ssb_index = i;
num_active_ssb++;
}
}
for(int i = 0; (1 << i) < max_association_period;i++) {
if(total_RA_occasions >= (int) (num_active_ssb/num_ssb_per_RO)) {
repetition = (uint16_t)((total_RA_occasions * num_ssb_per_RO )/num_active_ssb);
break;
}
else
total_RA_occasions = total_RA_occasions * i;
}
unused_RA_occasion = total_RA_occasions - (int)((num_active_ssb * repetition)/num_ssb_per_RO);
cc->total_prach_occasions = total_RA_occasions - unused_RA_occasion;
cc->num_active_ssb = num_active_ssb;
LOG_D(MAC, "Total available RO %d, num of active SSB %d: unused RO = %d \n", cc->total_prach_occasions, cc->num_active_ssb, unused_RA_occasion);
}
void schedule_nr_prach(module_id_t module_idP, frame_t frameP, sub_frame_t slotP) {
gNB_MAC_INST *gNB = RC.nrmac[module_idP];
NR_COMMON_channels_t *cc = gNB->common_channels;
NR_ServingCellConfigCommon_t *scc = cc->ServingCellConfigCommon;
nfapi_nr_ul_tti_request_t *UL_tti_req = &RC.nrmac[module_idP]->UL_tti_req[0];
nfapi_nr_config_request_scf_t *cfg = &RC.nrmac[module_idP]->config[0];
uint8_t config_index = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->rach_ConfigGeneric.prach_ConfigurationIndex;
uint8_t mu,N_dur,N_t_slot,start_symbol;
uint8_t mu,N_dur,N_t_slot,start_symbol,N_RA_slot;
uint16_t RA_sfn_index;
uint16_t format;
int slot_index;
uint16_t prach_occasion_id = -1;
if (scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg1_SubcarrierSpacing)
mu = *scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg1_SubcarrierSpacing;
else
mu = scc->downlinkConfigCommon->frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing;
uint8_t fdm = cfg->prach_config.num_prach_fd_occasions.value;
// prach is scheduled according to configuration index and tables 6.3.3.2.2 to 6.3.3.2.4
if ( get_nr_prach_info_from_index(config_index,
(int)frameP,
......@@ -73,15 +214,39 @@ void schedule_nr_prach(module_id_t module_idP, frame_t frameP, sub_frame_t slotP
&format,
&start_symbol,
&N_t_slot,
&N_dur) ) {
&N_dur,
&RA_sfn_index,
&N_RA_slot) ) {
uint16_t format0 = format&0xff; // first column of format from table
uint16_t format1 = (format>>8)&0xff; // second column of format from table
if (N_RA_slot > 1) { //more than 1 PRACH slot in a subframe
if (slotP%2 == 1){
N_RA_slot = 1; //Even PRACH slot
slot_index = 1;
}
else {
slot_index = 0;
N_RA_slot = 0; //Odd PRACH slot
}
}else if (N_RA_slot <= 1) { //1 PRACH slot in a subframe
N_RA_slot = 0;
slot_index = 0;
if((mu == 1) || (mu == 3))
N_RA_slot = 1; //For scs = 30khz and 120khz
}
int fdm = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->rach_ConfigGeneric.msg1_FDM;
uint16_t format0 = format&0xff; // first column of format from table
uint16_t format1 = (format>>8)&0xff; // second column of format from table
// start_symbol = start_symbol + N_t_slot * N_dur + 14 * N_RA_slot;
for (int index=0; index<N_t_slot; index++) {
start_symbol = (start_symbol + index * N_dur + 14 * N_RA_slot) % 14;
UL_tti_req->SFN = frameP;
UL_tti_req->Slot = slotP;
for (int n=0; n<(1<<fdm); n++) { // one structure per frequency domain occasion
for (int n=0; n < fdm; n++) { // one structure per frequency domain occasion
prach_occasion_id = (RA_sfn_index + slot_index) * N_t_slot * fdm + index * fdm + n;
if(prach_occasion_id < cc->total_prach_occasions){
UL_tti_req->pdus_list[UL_tti_req->n_pdus].pdu_type = NFAPI_NR_UL_CONFIG_PRACH_PDU_TYPE;
UL_tti_req->pdus_list[UL_tti_req->n_pdus].pdu_size = sizeof(nfapi_nr_prach_pdu_t);
nfapi_nr_prach_pdu_t *prach_pdu = &UL_tti_req->pdus_list[UL_tti_req->n_pdus].prach_pdu;
......@@ -96,6 +261,11 @@ void schedule_nr_prach(module_id_t module_idP, frame_t frameP, sub_frame_t slotP
prach_pdu->num_cs = get_NCS(scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->rach_ConfigGeneric.zeroCorrelationZoneConfig,
format0,
scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->restrictedSetConfig);
LOG_D(MAC, "Frame %d, Slot %d: Prach Occasion id = %u fdm index = %u start symbol = %u slot index = %u subframe index = %u \n", frameP, slotP,
prach_occasion_id, prach_pdu->num_ra,
prach_pdu->prach_start_symbol,
slot_index, RA_sfn_index);
// SCF PRACH PDU format field does not consider A1/B1 etc. possibilities
// We added 9 = A1/B1 10 = A2/B2 11 A3/B3
if (format1!=0xff) {
......@@ -157,8 +327,10 @@ void schedule_nr_prach(module_id_t module_idP, frame_t frameP, sub_frame_t slotP
default:
AssertFatal(1==0,"Invalid PRACH format");
}
}
}
}
}
}
}
}
......@@ -167,7 +339,7 @@ void nr_schedule_msg2(uint16_t rach_frame, uint16_t rach_slot,
uint16_t *msg2_frame, uint16_t *msg2_slot,
NR_ServingCellConfigCommon_t *scc,
uint16_t monitoring_slot_period,
uint16_t monitoring_offset){
uint16_t monitoring_offset,uint8_t index,uint8_t num_active_ssb){
// preferentially we schedule the msg2 in the mixed slot or in the last dl slot
// if they are allowed by search space configuration
......@@ -186,7 +358,12 @@ void nr_schedule_msg2(uint16_t rach_frame, uint16_t rach_slot,
// computing start of next period
uint8_t start_next_period = (rach_slot-(rach_slot%tdd_period_slot)+tdd_period_slot)%nr_slots_per_frame_mac[mu];
*msg2_slot = start_next_period + last_dl_slot_period; // initializing scheduling of slot to next mixed (or last dl) slot
//scheduling msg2 based on identified active SSB from RO
for(int i = 0;i < last_dl_slot_period;i++) {
if (index == ( (start_next_period + i ) % num_active_ssb ))
*msg2_slot = start_next_period + i;
}
// *msg2_slot = start_next_period + last_dl_slot_period; // initializing scheduling of slot to next mixed (or last dl) slot
*msg2_frame = (*msg2_slot>(rach_slot))? rach_frame : (rach_frame +1);
switch(response_window){
......@@ -250,9 +427,17 @@ void nr_initiate_ra_proc(module_id_t module_idP,
// ra_rnti from 5.1.3 in 38.321
uint16_t ra_rnti=1+symbol+(slotP*14)+(freq_index*14*80)+(ul_carrier_id*14*80*8);
uint8_t index = ssb_index_from_prach(module_idP,
frameP,
slotP,
preamble_index,
freq_index,
symbol);
uint16_t msg2_frame, msg2_slot,monitoring_slot_period,monitoring_offset;
gNB_MAC_INST *nr_mac = RC.nrmac[module_idP];
NR_UE_list_t *UE_list = &nr_mac->UE_list;
NR_SSB_list_t *SSB_list = &nr_mac->SSB_list[index];
NR_CellGroupConfig_t *secondaryCellGroup = UE_list->secondaryCellGroup[UE_id];
NR_COMMON_channels_t *cc = &nr_mac->common_channels[CC_id];
NR_ServingCellConfigCommon_t *scc = cc->ServingCellConfigCommon;
......@@ -305,7 +490,7 @@ void nr_initiate_ra_proc(module_id_t module_idP,
&monitoring_slot_period,
&monitoring_offset);
nr_schedule_msg2(frameP, slotP, &msg2_frame, &msg2_slot, scc, monitoring_slot_period, monitoring_offset);
nr_schedule_msg2(frameP, slotP, &msg2_frame, &msg2_slot, scc, monitoring_slot_period, monitoring_offset,index,cc->num_active_ssb);
ra->Msg2_frame = msg2_frame;
ra->Msg2_slot = msg2_slot;
......@@ -325,6 +510,10 @@ void nr_initiate_ra_proc(module_id_t module_idP,
ra->RA_rnti = ra_rnti;
ra->preamble_index = preamble_index;
UE_list->tc_rnti[UE_id] = ra->rnti;
UE_list->UE_ssb_index[UE_id] = SSB_list->ssb_index;
SSB_list->SSB_UE_list[UE_id].tc_rnti = ra->rnti;
SSB_list->SSB_UE_list[UE_id].active = true;
SSB_list->num_UEs += 1;
LOG_I(MAC,"[gNB %d][RAPROC] CC_id %d Frame %d Activating Msg2 generation in frame %d, slot %d using RA rnti %x\n",
module_idP,
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c
View file @ 991e5ad4
......@@ -54,6 +54,7 @@
#include "common/ran_context.h"
extern RAN_CONTEXT_t RC;
extern uint8_t SSB_Table[38];
void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP){
......@@ -66,15 +67,24 @@ void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP){
int mib_sdu_length;
int CC_id;
AssertFatal(slotP == 0, "Subframe must be 0\n");
AssertFatal((frameP & 7) == 0, "Frame must be a multiple of 8\n");
// AssertFatal(slotP == 0, "Subframe must be 0\n");
// AssertFatal((frameP & 7) == 0, "Frame must be a multiple of 8\n");
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
nfapi_nr_config_request_scf_t *cfg = &RC.nrmac[module_idP]->config[0];
dl_tti_request = &gNB->DL_req[CC_id];
dl_req = &dl_tti_request->dl_tti_request_body;
cc = &gNB->common_channels[CC_id];
//SSB is transmitted based on SSB periodicity
if((frameP % cfg->ssb_table.ssb_period.value) == 0) {
uint64_t L_ssb = (((uint64_t) cfg->ssb_table.ssb_mask_list[0].ssb_mask.value)<<32) | cfg->ssb_table.ssb_mask_list[1].ssb_mask.value ;
uint32_t ssb_index = -1;
for (int i=0; i<2; i++) { // max two SSB per slot
ssb_index = i + SSB_Table[slotP]; // computing the ssb_index
if ((ssb_index<64) && ((L_ssb >> (63-ssb_index)) & 0x01)) { // generating the ssb only if the bit of L_ssb at current ssb index is 1
mib_sdu_length = mac_rrc_nr_data_req(module_idP, CC_id, frameP, MIBCH, 1, &cc->MIB_pdu.payload[0]); // not used in this case
......@@ -96,7 +106,7 @@ void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP){
AssertFatal(cc->ServingCellConfigCommon->physCellId!=NULL,"cc->ServingCellConfigCommon->physCellId is null\n");
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.PhysCellId = *cc->ServingCellConfigCommon->physCellId;
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.BetaPss = 0;
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.SsbBlockIndex = 0;
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.SsbBlockIndex = ssb_index ;//SSB index for each SSB
AssertFatal(cc->ServingCellConfigCommon->downlinkConfigCommon!=NULL,"scc->downlinkConfigCommonL is null\n");
AssertFatal(cc->ServingCellConfigCommon->downlinkConfigCommon->frequencyInfoDL!=NULL,"scc->downlinkConfigCommon->frequencyInfoDL is null\n");
AssertFatal(cc->ServingCellConfigCommon->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencySSB!=NULL,"scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencySSB is null\n");
......@@ -132,13 +142,16 @@ void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP){
default:
AssertFatal(1==0,"SCS %ld not allowed for SSB \n", *cc->ServingCellConfigCommon->ssbSubcarrierSpacing);
}
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.SsbSubcarrierOffset = 0; //kSSB
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.ssbOffsetPointA = ssb_offset0/(ratio*12) - 10; // absoluteFrequencySSB is the center of SSB
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.SsbSubcarrierOffset = cfg->ssb_table.ssb_subcarrier_offset.value; //kSSB
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.ssbOffsetPointA = /*cfg->ssb_table.ssb_offset_point_a.value;*/ssb_offset0/(ratio*12) - 10; // absoluteFrequencySSB is the center of SSB
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.bchPayloadFlag = 1;
dl_config_pdu->ssb_pdu.ssb_pdu_rel15.bchPayload = (*(uint32_t*)cc->MIB_pdu.payload) & ((1<<24)-1);
dl_req->nPDUs++;
}
}
}
}
}
}
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
View file @ 991e5ad4
......@@ -317,4 +317,13 @@ void nr_rx_sdu(const module_id_t gnb_mod_idP,
const uint16_t sdu_lenP,
const uint16_t timing_advance, const uint8_t ul_cqi);
int16_t ssb_index_from_prach(module_id_t module_idP,
frame_t frameP,
sub_frame_t slotP,
uint16_t preamble_index,
uint8_t freq_index,
uint8_t symbol);
void find_SSB_and_RO_available(module_id_t module_idP);
#endif /*__LAYER2_NR_MAC_PROTO_H__*/
openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h
View file @ 991e5ad4
......@@ -141,6 +141,8 @@ typedef struct {
int msg4_mcs;
/// RA search space
NR_SearchSpace_t *ra_ss;
// SSB id
uint8_t ssb_id;
} NR_RA_t;
/*! \brief gNB common channels */
......@@ -177,6 +179,10 @@ typedef struct {
uint8_t vrb_map_UL[100];
/// number of subframe allocation pattern available for MBSFN sync area
uint8_t num_sf_allocation_pattern;
///Number of active SSBs
uint8_t num_active_ssb;
//Total available prach occasions
uint32_t total_prach_occasions;
} NR_COMMON_channels_t;
......@@ -295,8 +301,23 @@ typedef struct {
rnti_t tc_rnti[MAX_MOBILES_PER_GNB];
NR_preamble_ue preambles[MAX_MOBILES_PER_GNB];
NR_CellGroupConfig_t *secondaryCellGroup[MAX_MOBILES_PER_GNB];
uint8_t UE_ssb_index[MAX_MOBILES_PER_GNB];
} NR_UE_list_t;
typedef struct {
rnti_t rnti;
rnti_t tc_rnti;
boolean_t active;
} NR_SSB_UE_list_t;
#define MAX_NUM_OF_SSB 64
typedef struct {
uint8_t ssb_index;
int num_UEs;
NR_SSB_UE_list_t SSB_UE_list[MAX_MOBILES_PER_GNB];
} NR_SSB_list_t;
/*! \brief top level eNB MAC structure */
typedef struct gNB_MAC_INST_s {
/// Ethernet parameters for northbound midhaul interface
......@@ -335,6 +356,7 @@ typedef struct gNB_MAC_INST_s {
NR_UE_list_t UE_list;
NR_SSB_list_t SSB_list[MAX_NUM_OF_SSB];
/// UL handle
uint32_t ul_handle;
......
openair2/NR_PHY_INTERFACE/NR_IF_Module.c
View file @ 991e5ad4
......@@ -56,23 +56,21 @@ extern uint16_t sl_ahead;
void handle_nr_rach(NR_UL_IND_t *UL_info) {
if (UL_info->rach_ind.number_of_pdus>0) {
AssertFatal(UL_info->rach_ind.number_of_pdus==1,"More than 1 RACH pdu not supported\n");
UL_info->rach_ind.number_of_pdus=0;
LOG_D(MAC,"UL_info[Frame %d, Slot %d] Calling initiate_ra_proc RACH:SFN/SLOT:%d/%d\n",UL_info->frame,UL_info->slot, UL_info->rach_ind.sfn,UL_info->rach_ind.slot);
if (UL_info->rach_ind.pdu_list[0].num_preamble>0)
AssertFatal(UL_info->rach_ind.pdu_list[0].num_preamble==1,
for(int i = 0; i < UL_info->rach_ind.number_of_pdus; i++) {
if (UL_info->rach_ind.pdu_list[i].num_preamble>0)
AssertFatal(UL_info->rach_ind.pdu_list[i].num_preamble==1,
"More than 1 preamble not supported\n");
nr_initiate_ra_proc(UL_info->module_id,
UL_info->CC_id,
UL_info->rach_ind.sfn,
UL_info->rach_ind.slot,
UL_info->rach_ind.pdu_list[0].preamble_list[0].preamble_index,
UL_info->rach_ind.pdu_list[0].freq_index,
UL_info->rach_ind.pdu_list[0].symbol_index,
UL_info->rach_ind.pdu_list[0].preamble_list[0].timing_advance);
UL_info->rach_ind.pdu_list[i].preamble_list[0].preamble_index,
UL_info->rach_ind.pdu_list[i].freq_index,
UL_info->rach_ind.pdu_list[i].symbol_index,
UL_info->rach_ind.pdu_list[i].preamble_list[0].timing_advance);
}
}
}
......
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