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Refactor F1 setup req reading

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Refactor parts into a separate function, which will be reused within the
gNB-DU configuration update function in the next commit.
This commit is contained in:
Robert Schmidt
2024-05-06 11:35:58 +02:00
parent aaaa00378a
commit 67e5547957
2 changed files with 144 additions and 145 deletions
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openair2/F1AP/f1ap_du_interface_management.c
+143 -144
View File
@@ -83,12 +83,146 @@ int DU_handle_ERROR_INDICATION(instance_t instance, sctp_assoc_t assoc_id, uint3
AssertFatal(1==0,"Not implemented yet\n");
}
/*
F1 Setup
*/
static F1AP_Served_Cell_Information_t encode_served_cell_info(const f1ap_served_cell_info_t *c)
{
/* 4.1.1 served cell Information */
F1AP_Served_Cell_Information_t scell_info = {0};
addnRCGI(scell_info.nRCGI, c);
/* - nRPCI */
scell_info.nRPCI = c->nr_pci; // int 0..1007
/* - fiveGS_TAC */
if (c->tac != NULL) {
uint32_t tac = htonl(*c->tac);
asn1cCalloc(scell_info.fiveGS_TAC, netOrder);
OCTET_STRING_fromBuf(netOrder, ((char *)&tac) + 1, 3);
}
/* - Configured_EPS_TAC */
if (0) {
scell_info.configured_EPS_TAC = (F1AP_Configured_EPS_TAC_t *)calloc(1, sizeof(F1AP_Configured_EPS_TAC_t));
OCTET_STRING_fromBuf(scell_info.configured_EPS_TAC, "2", 2);
}
/* servedPLMN information */
asn1cSequenceAdd(scell_info.servedPLMNs.list, F1AP_ServedPLMNs_Item_t, servedPLMN_item);
MCC_MNC_TO_PLMNID(c->plmn.mcc, c->plmn.mnc, c->plmn.mnc_digit_length, &servedPLMN_item->pLMN_Identity);
F1AP_NR_Mode_Info_t *nR_Mode_Info = &scell_info.nR_Mode_Info;
if (c->num_ssi > 0) {
F1AP_ProtocolExtensionContainer_10696P34_t *p = calloc(1, sizeof(*p));
servedPLMN_item->iE_Extensions = (struct F1AP_ProtocolExtensionContainer *)p;
asn1cSequenceAdd(p->list, F1AP_ServedPLMNs_ItemExtIEs_t, served_plmns_itemExtIEs);
served_plmns_itemExtIEs->criticality = F1AP_Criticality_ignore;
served_plmns_itemExtIEs->id = F1AP_ProtocolIE_ID_id_TAISliceSupportList;
served_plmns_itemExtIEs->extensionValue.present = F1AP_ServedPLMNs_ItemExtIEs__extensionValue_PR_SliceSupportList;
F1AP_SliceSupportList_t *slice_support_list = &served_plmns_itemExtIEs->extensionValue.choice.SliceSupportList;
AssertFatal(c->num_ssi == 1, "can only encode one slice\n");
for (int s = 0; s < c->num_ssi; s++) {
asn1cSequenceAdd(slice_support_list->list, F1AP_SliceSupportItem_t, slice);
INT8_TO_OCTET_STRING(c->sst, &slice->sNSSAI.sST);
if (c->sd != 0xffffff) {
asn1cCalloc(slice->sNSSAI.sD, tmp);
INT24_TO_OCTET_STRING(c->sd, tmp);
}
}
}
if (c->mode == F1AP_MODE_FDD) { // FDD
const f1ap_fdd_info_t *fdd = &c->fdd;
nR_Mode_Info->present = F1AP_NR_Mode_Info_PR_fDD;
asn1cCalloc(nR_Mode_Info->choice.fDD, fDD_Info);
/* FDD.1.1 UL NRFreqInfo ARFCN */
fDD_Info->uL_NRFreqInfo.nRARFCN = fdd->ul_freqinfo.arfcn; // Integer
/* FDD.1.2 F1AP_SUL_Information */
/* FDD.1.3 freqBandListNr */
int ul_band = 1;
for (int j = 0; j < ul_band; j++) {
asn1cSequenceAdd(fDD_Info->uL_NRFreqInfo.freqBandListNr.list, F1AP_FreqBandNrItem_t, nr_freqBandNrItem);
/* FDD.1.3.1 freqBandIndicatorNr*/
nr_freqBandNrItem->freqBandIndicatorNr = fdd->ul_freqinfo.band;
/* FDD.1.3.2 supportedSULBandList*/
}
/* FDD.2.1 DL NRFreqInfo ARFCN */
fDD_Info->dL_NRFreqInfo.nRARFCN = fdd->dl_freqinfo.arfcn; // Integer
/* FDD.2.2 F1AP_SUL_Information */
/* FDD.2.3 freqBandListNr */
int dl_bands = 1;
for (int j = 0; j < dl_bands; j++) {
asn1cSequenceAdd(fDD_Info->dL_NRFreqInfo.freqBandListNr.list, F1AP_FreqBandNrItem_t, nr_freqBandNrItem);
/* FDD.2.3.1 freqBandIndicatorNr*/
nr_freqBandNrItem->freqBandIndicatorNr = fdd->dl_freqinfo.band;
/* FDD.2.3.2 supportedSULBandList*/
} // for FDD : DL freq_Bands
/* FDD.3 UL Transmission Bandwidth */
fDD_Info->uL_Transmission_Bandwidth.nRSCS = fdd->ul_tbw.scs;
fDD_Info->uL_Transmission_Bandwidth.nRNRB = to_NRNRB(fdd->ul_tbw.nrb);
/* FDD.4 DL Transmission Bandwidth */
fDD_Info->dL_Transmission_Bandwidth.nRSCS = fdd->dl_tbw.scs;
fDD_Info->dL_Transmission_Bandwidth.nRNRB = to_NRNRB(fdd->dl_tbw.nrb);
} else if (c->mode == F1AP_MODE_TDD) {
const f1ap_tdd_info_t *tdd = &c->tdd;
nR_Mode_Info->present = F1AP_NR_Mode_Info_PR_tDD;
asn1cCalloc(nR_Mode_Info->choice.tDD, tDD_Info);
/* TDD.1.1 nRFreqInfo ARFCN */
tDD_Info->nRFreqInfo.nRARFCN = tdd->freqinfo.arfcn;
/* TDD.1.2 F1AP_SUL_Information */
/* TDD.1.3 freqBandListNr */
int bands = 1;
for (int j = 0; j < bands; j++) {
asn1cSequenceAdd(tDD_Info->nRFreqInfo.freqBandListNr.list, F1AP_FreqBandNrItem_t, nr_freqBandNrItem);
/* TDD.1.3.1 freqBandIndicatorNr*/
nr_freqBandNrItem->freqBandIndicatorNr = tdd->freqinfo.band;
/* TDD.1.3.2 supportedSULBandList*/
}
/* TDD.2 transmission_Bandwidth */
tDD_Info->transmission_Bandwidth.nRSCS = tdd->tbw.scs;
tDD_Info->transmission_Bandwidth.nRNRB = to_NRNRB(tdd->tbw.nrb);
} else {
AssertFatal(false, "unknown mode %d\n", c->mode);
}
/* - measurementTimingConfiguration */
char *measurementTimingConfiguration = c->measurement_timing_information;
OCTET_STRING_fromBuf(&scell_info.measurementTimingConfiguration,
measurementTimingConfiguration,
strlen(measurementTimingConfiguration));
return scell_info;
}
static F1AP_GNB_DU_System_Information_t *encode_system_info(const f1ap_gnb_du_system_info_t *sys_info)
{
if (sys_info == NULL)
return NULL; /* optional: can be NULL */
F1AP_GNB_DU_System_Information_t *enc_sys_info = calloc(1, sizeof(*enc_sys_info));
AssertFatal(enc_sys_info != NULL, "out of memory\n");
AssertFatal(sys_info->mib != NULL, "MIB must be present in DU sys info\n");
OCTET_STRING_fromBuf(&enc_sys_info->mIB_message, (const char *)sys_info->mib, sys_info->mib_length);
AssertFatal(sys_info->sib1 != NULL, "SIB1 must be present in DU sys info\n");
OCTET_STRING_fromBuf(&enc_sys_info->sIB1_message, (const char *)sys_info->sib1, sys_info->sib1_length);
return enc_sys_info;
}
// SETUP REQUEST
int DU_send_F1_SETUP_REQUEST(sctp_assoc_t assoc_id, f1ap_setup_req_t *setup_req)
int DU_send_F1_SETUP_REQUEST(sctp_assoc_t assoc_id, const f1ap_setup_req_t *setup_req)
{
F1AP_F1AP_PDU_t pdu= {0};
uint8_t *buffer;
@@ -139,151 +273,16 @@ int DU_send_F1_SETUP_REQUEST(sctp_assoc_t assoc_id, f1ap_setup_req_t *setup_req)
for (int i=0; i<num_cells_available; i++) {
/* mandatory */
/* 4.1 served cells item */
f1ap_served_cell_info_t *cell = &setup_req->cell[i].info;
const f1ap_served_cell_info_t *cell = &setup_req->cell[i].info;
const f1ap_gnb_du_system_info_t *sys_info = setup_req->cell[i].sys_info;
asn1cSequenceAdd(ieCells->value.choice.GNB_DU_Served_Cells_List.list,
F1AP_GNB_DU_Served_Cells_ItemIEs_t, duServedCell);
duServedCell->id = F1AP_ProtocolIE_ID_id_GNB_DU_Served_Cells_Item;
duServedCell->criticality = F1AP_Criticality_reject;
duServedCell->value.present = F1AP_GNB_DU_Served_Cells_ItemIEs__value_PR_GNB_DU_Served_Cells_Item;
F1AP_GNB_DU_Served_Cells_Item_t *gnb_du_served_cells_item=&duServedCell->value.choice.GNB_DU_Served_Cells_Item;
/* 4.1.1 served cell Information */
F1AP_Served_Cell_Information_t *served_cell_information= &gnb_du_served_cells_item->served_Cell_Information;
addnRCGI(served_cell_information->nRCGI, cell);
/* - nRPCI */
served_cell_information->nRPCI = cell->nr_pci; // int 0..1007
/* - fiveGS_TAC */
if (cell->tac != NULL) {
uint32_t tac=htonl(*cell->tac);
asn1cCalloc(served_cell_information->fiveGS_TAC, netOrder);
OCTET_STRING_fromBuf(netOrder, ((char *)&tac)+1, 3);
}
/* - Configured_EPS_TAC */
if(0) {
served_cell_information->configured_EPS_TAC = (F1AP_Configured_EPS_TAC_t *)calloc(1, sizeof(F1AP_Configured_EPS_TAC_t));
OCTET_STRING_fromBuf(served_cell_information->configured_EPS_TAC, "2", 2);
}
/* servedPLMN information */
asn1cSequenceAdd(served_cell_information->servedPLMNs.list, F1AP_ServedPLMNs_Item_t,servedPLMN_item);
MCC_MNC_TO_PLMNID(cell->plmn.mcc, cell->plmn.mnc, cell->plmn.mnc_digit_length, &servedPLMN_item->pLMN_Identity);
// // /* - CHOICE NR-MODE-Info */
F1AP_NR_Mode_Info_t *nR_Mode_Info= &served_cell_information->nR_Mode_Info;
F1AP_ProtocolExtensionContainer_10696P34_t *p = calloc(1, sizeof(*p));
servedPLMN_item->iE_Extensions = (struct F1AP_ProtocolExtensionContainer *) p;
asn1cSequenceAdd(p->list, F1AP_ServedPLMNs_ItemExtIEs_t , served_plmns_itemExtIEs);
served_plmns_itemExtIEs->criticality = F1AP_Criticality_ignore;
served_plmns_itemExtIEs->id = F1AP_ProtocolIE_ID_id_TAISliceSupportList;
served_plmns_itemExtIEs->extensionValue.present = F1AP_ServedPLMNs_ItemExtIEs__extensionValue_PR_SliceSupportList;
F1AP_SliceSupportList_t *slice_support_list = &served_plmns_itemExtIEs->extensionValue.choice.SliceSupportList;
/* get list of sst/sd from configuration file */
paramdef_t SNSSAIParams[] = GNBSNSSAIPARAMS_DESC;
paramlist_def_t SNSSAIParamList = {GNB_CONFIG_STRING_SNSSAI_LIST, NULL, 0};
char sstr[100];
/* TODO: be sure that %d in the line below is at the right place */
sprintf(sstr, "%s.[%d].%s.[0]", GNB_CONFIG_STRING_GNB_LIST, i, GNB_CONFIG_STRING_PLMN_LIST);
config_getlist(config_get_if(), &SNSSAIParamList, SNSSAIParams, sizeofArray(SNSSAIParams), sstr);
AssertFatal(SNSSAIParamList.numelt > 0, "no slice configuration found (snssaiList in the configuration file)\n");
AssertFatal(SNSSAIParamList.numelt <= 1024, "maximum size for slice support list is 1024, see F1AP 38.473 9.3.1.37\n");
for (int s = 0; s < SNSSAIParamList.numelt; s++) {
uint32_t sst;
uint32_t sd;
bool has_sd;
sst = *SNSSAIParamList.paramarray[s][GNB_SLICE_SERVICE_TYPE_IDX].uptr;
has_sd = *SNSSAIParamList.paramarray[s][GNB_SLICE_DIFFERENTIATOR_IDX].uptr != 0xffffff;
asn1cSequenceAdd(slice_support_list->list, F1AP_SliceSupportItem_t, slice);
INT8_TO_OCTET_STRING(sst, &slice->sNSSAI.sST);
if (has_sd) {
sd = *SNSSAIParamList.paramarray[s][GNB_SLICE_DIFFERENTIATOR_IDX].uptr;
asn1cCalloc(slice->sNSSAI.sD, tmp);
INT24_TO_OCTET_STRING(sd, tmp);
}
}
if (setup_req->cell[i].info.mode == F1AP_MODE_FDD) { // FDD
const f1ap_fdd_info_t *fdd = &setup_req->cell[i].info.fdd;
nR_Mode_Info->present = F1AP_NR_Mode_Info_PR_fDD;
asn1cCalloc(nR_Mode_Info->choice.fDD, fDD_Info);
/* FDD.1 UL NRFreqInfo */
/* FDD.1.1 UL NRFreqInfo ARFCN */
fDD_Info->uL_NRFreqInfo.nRARFCN = fdd->ul_freqinfo.arfcn; // Integer
/* FDD.1.2 F1AP_SUL_Information */
/* FDD.1.3 freqBandListNr */
int fdd_ul_num_available_freq_Bands = 1;
for (int fdd_ul_j=0; fdd_ul_j<fdd_ul_num_available_freq_Bands; fdd_ul_j++) {
asn1cSequenceAdd(fDD_Info->uL_NRFreqInfo.freqBandListNr.list, F1AP_FreqBandNrItem_t, nr_freqBandNrItem);
/* FDD.1.3.1 freqBandIndicatorNr*/
nr_freqBandNrItem->freqBandIndicatorNr = fdd->ul_freqinfo.band;
/* FDD.1.3.2 supportedSULBandList*/
} // for FDD : UL freq_Bands
/* FDD.2 DL NRFreqInfo */
/* FDD.2.1 DL NRFreqInfo ARFCN */
fDD_Info->dL_NRFreqInfo.nRARFCN = fdd->dl_freqinfo.arfcn; // Integer
/* FDD.2.2 F1AP_SUL_Information */
/* FDD.2.3 freqBandListNr */
int fdd_dl_num_available_freq_Bands = 1;
for (int fdd_dl_j=0; fdd_dl_j<fdd_dl_num_available_freq_Bands; fdd_dl_j++) {
asn1cSequenceAdd(fDD_Info->dL_NRFreqInfo.freqBandListNr.list, F1AP_FreqBandNrItem_t, nr_freqBandNrItem);
/* FDD.2.3.1 freqBandIndicatorNr*/
nr_freqBandNrItem->freqBandIndicatorNr = fdd->dl_freqinfo.band;
/* FDD.2.3.2 supportedSULBandList*/
} // for FDD : DL freq_Bands
/* FDD.3 UL Transmission Bandwidth */
fDD_Info->uL_Transmission_Bandwidth.nRSCS = fdd->ul_tbw.scs;
fDD_Info->uL_Transmission_Bandwidth.nRNRB = to_NRNRB(fdd->ul_tbw.nrb);
/* FDD.4 DL Transmission Bandwidth */
fDD_Info->dL_Transmission_Bandwidth.nRSCS = fdd->dl_tbw.scs;
fDD_Info->dL_Transmission_Bandwidth.nRNRB = to_NRNRB(fdd->dl_tbw.nrb);
} else if (setup_req->cell[i].info.mode == F1AP_MODE_TDD) { // TDD
const f1ap_tdd_info_t *tdd = &setup_req->cell[i].info.tdd;
nR_Mode_Info->present = F1AP_NR_Mode_Info_PR_tDD;
asn1cCalloc(nR_Mode_Info->choice.tDD, tDD_Info);
/* TDD.1 nRFreqInfo */
/* TDD.1.1 nRFreqInfo ARFCN */
tDD_Info->nRFreqInfo.nRARFCN = tdd->freqinfo.arfcn; // Integer
/* TDD.1.2 F1AP_SUL_Information */
/* TDD.1.3 freqBandListNr */
int tdd_num_available_freq_Bands = 1;
for (int j=0; j<tdd_num_available_freq_Bands; j++) {
asn1cSequenceAdd(tDD_Info->nRFreqInfo.freqBandListNr.list, F1AP_FreqBandNrItem_t, nr_freqBandNrItem);
/* TDD.1.3.1 freqBandIndicatorNr*/
nr_freqBandNrItem->freqBandIndicatorNr = tdd->freqinfo.band;
/* TDD.1.3.2 supportedSULBandList*/
} // for TDD : freq_Bands
/* TDD.2 transmission_Bandwidth */
tDD_Info->transmission_Bandwidth.nRSCS = tdd->tbw.scs;
tDD_Info->transmission_Bandwidth.nRNRB = to_NRNRB(tdd->tbw.nrb);
} else {
AssertFatal(false, "unknown mode %d\n", setup_req->cell[i].info.mode);
}
/* - measurementTimingConfiguration */
char *measurementTimingConfiguration = cell->measurement_timing_information; // sept. 2018
OCTET_STRING_fromBuf(&served_cell_information->measurementTimingConfiguration,
measurementTimingConfiguration,
strlen(measurementTimingConfiguration));
/* 4.1.2 gNB-DU System Information */
if (setup_req->cell[i].sys_info != NULL) {
asn1cCalloc(gnb_du_served_cells_item->gNB_DU_System_Information, gNB_DU_System_Information);
const f1ap_gnb_du_system_info_t *sys_info = setup_req->cell[i].sys_info;
AssertFatal(sys_info->mib != NULL, "MIB must be present in DU sys info\n");
OCTET_STRING_fromBuf(&gNB_DU_System_Information->mIB_message, (const char *)sys_info->mib, sys_info->mib_length);
AssertFatal(sys_info->sib1 != NULL, "SIB1 must be present in DU sys info\n");
OCTET_STRING_fromBuf(&gNB_DU_System_Information->sIB1_message, (const char *)sys_info->sib1, sys_info->sib1_length);
}
F1AP_GNB_DU_Served_Cells_Item_t *scell_item = &duServedCell->value.choice.GNB_DU_Served_Cells_Item;
scell_item->served_Cell_Information = encode_served_cell_info(cell);
scell_item->gNB_DU_System_Information = encode_system_info(sys_info);
}
/* mandatory */
openair2/F1AP/f1ap_du_interface_management.h
+1 -1
View File
@@ -50,7 +50,7 @@ int DU_handle_ERROR_INDICATION(instance_t instance, sctp_assoc_t assoc_id, uint3
/*
* F1 Setup
*/
int DU_send_F1_SETUP_REQUEST(sctp_assoc_t assoc_id, f1ap_setup_req_t *setup_req);
int DU_send_F1_SETUP_REQUEST(sctp_assoc_t assoc_id, const f1ap_setup_req_t *setup_req);
int DU_handle_F1_SETUP_RESPONSE(instance_t instance, sctp_assoc_t assoc_id, uint32_t stream, F1AP_F1AP_PDU_t *pdu);