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Add and use F1 encode function for Transmission Bandwidth and NR Frequency Info in F1 interface management lib

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This commit is contained in:
Guido Casati
2024-11-27 10:40:10 +01:00
parent 03946cd47b
commit a394a40d5d
1 changed files with 47 additions and 43 deletions
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openair2/F1AP/lib/f1ap_interface_management.c
+47 -43
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@@ -83,72 +83,76 @@ static void free_f1ap_cell(const f1ap_served_cell_info_t *info, const f1ap_gnb_d
free(info->tac);
}
/**
* @brief Encode NR Frequency Info (9.3.1.17 of 3GPP TS 38.473)
*/
static F1AP_NRFreqInfo_t encode_frequency_info(const f1ap_nr_frequency_info_t *info)
{
F1AP_NRFreqInfo_t nrFreqInfo = {0};
// NR ARFCN
nrFreqInfo.nRARFCN = info->arfcn;
int num_bands = 1;
// Frequency Band List
for (int j = 0; j < num_bands; j++) {
asn1cSequenceAdd(nrFreqInfo.freqBandListNr.list, F1AP_FreqBandNrItem_t, nr_freqBandNrItem);
// NR Frequency Band
nr_freqBandNrItem->freqBandIndicatorNr = info->band;
}
return nrFreqInfo;
}
/**
* @brief Encode Transmission Bandwidth (9.3.1.15 of 3GPP TS 38.473)
*/
static F1AP_Transmission_Bandwidth_t encode_tx_bandwidth(const f1ap_transmission_bandwidth_t *info)
{
F1AP_Transmission_Bandwidth_t tb = {0};
tb.nRSCS = info->scs;
tb.nRNRB = to_NRNRB(info->nrb);
return tb;
}
/**
* @brief Encoding of Served Cell Information (9.3.1.10 of 3GPP TS 38.473)
*/
static F1AP_Served_Cell_Information_t encode_served_cell_info(const f1ap_served_cell_info_t *c)
{
F1AP_Served_Cell_Information_t scell_info = {0};
// NR CGI
// NR CGI (M)
MCC_MNC_TO_PLMNID(c->plmn.mcc, c->plmn.mnc, c->plmn.mnc_digit_length, &(scell_info.nRCGI.pLMN_Identity));
NR_CELL_ID_TO_BIT_STRING(c->nr_cellid, &(scell_info.nRCGI.nRCellIdentity));
// NR PCI
// NR PCI (M)
scell_info.nRPCI = c->nr_pci; // int 0..1007
// 5GS TAC
// 5GS TAC (O)
if (c->tac != NULL) {
uint32_t tac = htonl(*c->tac);
asn1cCalloc(scell_info.fiveGS_TAC, netOrder);
OCTET_STRING_fromBuf(netOrder, ((char *)&tac) + 1, 3);
}
// Served PLMNs
// Served PLMNs 1..<maxnoofBPLMNs>
asn1cSequenceAdd(scell_info.servedPLMNs.list, F1AP_ServedPLMNs_Item_t, servedPLMN_item);
// PLMN Identity (M)
MCC_MNC_TO_PLMNID(c->plmn.mcc, c->plmn.mnc, c->plmn.mnc_digit_length, &servedPLMN_item->pLMN_Identity);
// NR-Mode-Info
// NR-Mode-Info (M)
F1AP_NR_Mode_Info_t *nR_Mode_Info = &scell_info.nR_Mode_Info;
if (c->mode == F1AP_MODE_FDD) { // FDD
if (c->mode == F1AP_MODE_FDD) { // FDD Info
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;
/* 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.2.1 DL NRFreqInfo ARFCN */
fDD_Info->dL_NRFreqInfo.nRARFCN = fdd->dl_freqinfo.arfcn;
/* 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;
} // 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) {
// NR Frequency Info
fDD_Info->uL_NRFreqInfo = encode_frequency_info(&fdd->ul_freqinfo);
fDD_Info->dL_NRFreqInfo = encode_frequency_info(&fdd->dl_freqinfo);
// Transmission Bandwidth
fDD_Info->uL_Transmission_Bandwidth = encode_tx_bandwidth(&fdd->ul_tbw);
fDD_Info->dL_Transmission_Bandwidth = encode_tx_bandwidth(&fdd->dl_tbw);
} else if (c->mode == F1AP_MODE_TDD) { // TDD Info
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.1.3 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.2 transmission_Bandwidth */
tDD_Info->transmission_Bandwidth.nRSCS = tdd->tbw.scs;
tDD_Info->transmission_Bandwidth.nRNRB = to_NRNRB(tdd->tbw.nrb);
// NR Frequency Info
tDD_Info->nRFreqInfo = encode_frequency_info(&tdd->freqinfo);
// Transmission Bandwidth
tDD_Info->transmission_Bandwidth = encode_tx_bandwidth(&tdd->tbw);
} else {
AssertFatal(false, "unknown duplex mode %d\n", c->mode);
}