Preparation of Neighbour Configuration & Measurement Configuration | Parsing the configuration
- neighbour_config.conf file includes neighbour and measurement related parameters
Neighbour List:
- nr_cellid: the identity of existing cell who has neighbour
- neighbour_cell_configuration(list): includes the identity parameters
of the neighbour cell such:
- gNBID (incase of N2 Handover / to be identified from AMF)
- nr_cell_id (target gNB needs to consider)
- physical_cellId (needed for measurement reporting)
- absoluteFrequencySSB (needed for measurement reporting)
- subcarrierSpacing (needed for measurement reporting)
- plmn / tracking area code (incase of N2 Handover / needed for AMF
to identify / allow HO)
NR Measurement Configuration
- Periodical
- enable (default is 0, 1 enables the reporting)
- includeBeamMeasurements, maxNrOfRS_IndexesToReport (configurable
reporting parameters)
- A2
- enable (default is 0, 1 enables the reporting)
- threshold , timeToTrigger (configurable reporting parameters)
- A3
- cell_id (the nr_cellid of neighbour cell. So this A3 parameters
will be used for the neighbour
- [-1] means default. so it can be applied to any neighbour if
there is no specific config
- Neighbour specific A3 Threshold can be used or default can be
selected depending to the neighbour planning
- The neighbour-config.conf specifies, apply default A3 for
neighbours 3 and 4 | apply specific one for neighbour 2
- offset, hysteresis, timeToTrigger (configurable reporting parameters)
the neighbour_config.conf can be included in the gNB.conf file. Example
is given: gnb.sa.band78.106prb.rfsim.neighbour.conf
A sequence array container is used for neighbour cell configuration. RRC
structure has this container. A Measurement configuration structure is
defined. This structure has Periodical / A2 Event structures and also a
sequence container for A3 Event List.
These structures are filled during the initialization. While F1 Setup
Response is coming from DU to CU, the intra frequency / inter frequency
neighbour decision is given for the existing cell. Also new neighbours
could be added here if needed.
This commit is contained in:
batuhan duyuler
committed by
Robert Schmidt
Robert Schmidt
parent
e5afdcdd43
commit
cec6b8925a
@@ -85,6 +85,7 @@
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#include "NR_EUTRA-MBSFN-SubframeConfig.h"
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#include "uper_decoder.h"
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#include "uper_encoder.h"
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#include "common/utils/ds/seq_arr.h"
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#include "RRC/NR/MESSAGES/asn1_msg.h"
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#include "RRC/NR/nr_rrc_extern.h"
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@@ -1593,6 +1594,155 @@ static void check_ssb_raster(uint64_t freq, int band, int scs)
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gscn, freq, band);
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}
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static int sort_neighbour_cell_config_by_cell_id(const void *a, const void *b)
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{
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const neighbour_cell_configuration_t *config_a = (const neighbour_cell_configuration_t *)a;
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const neighbour_cell_configuration_t *config_b = (const neighbour_cell_configuration_t *)b;
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if (config_a->nr_cell_id < config_b->nr_cell_id) {
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return -1;
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} else if (config_a->nr_cell_id > config_b->nr_cell_id) {
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return 1;
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}
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return 0;
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}
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static void fill_neighbour_cell_configuration(uint8_t gnb_idx, gNB_RRC_INST *rrc)
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{
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char gnbpath[MAX_OPTNAME_SIZE + 8];
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sprintf(gnbpath, "%s.[%i]", GNB_CONFIG_STRING_GNB_LIST, gnb_idx);
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paramdef_t neighbour_list_params[] = GNB_NEIGHBOUR_LIST_PARAM_LIST;
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paramlist_def_t neighbour_list_param_list = {GNB_CONFIG_STRING_NEIGHBOUR_LIST, NULL, 0};
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config_getlist(config_get_if(), &neighbour_list_param_list, neighbour_list_params, sizeofArray(neighbour_list_params), gnbpath);
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if (neighbour_list_param_list.numelt < 1)
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return;
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rrc->neighbour_cell_configuration = malloc(sizeof(seq_arr_t));
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seq_arr_init(rrc->neighbour_cell_configuration, sizeof(neighbour_cell_configuration_t));
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for (int elm = 0; elm < neighbour_list_param_list.numelt; ++elm) {
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neighbour_cell_configuration_t *cell = calloc(1, sizeof(neighbour_cell_configuration_t));
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AssertFatal(cell != NULL, "out of memory\n");
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cell->nr_cell_id = (uint64_t)*neighbour_list_param_list.paramarray[elm][0].u64ptr;
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char neighbourpath[MAX_OPTNAME_SIZE + 8];
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sprintf(neighbourpath, "%s.[%i].%s.[%i]", GNB_CONFIG_STRING_GNB_LIST, gnb_idx, GNB_CONFIG_STRING_NEIGHBOUR_LIST, elm);
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paramdef_t NeighbourCellParams[] = GNBNEIGHBOURCELLPARAMS_DESC;
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paramlist_def_t NeighbourCellParamList = {GNB_CONFIG_STRING_NEIGHBOUR_CELL_LIST, NULL, 0};
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config_getlist(config_get_if(), &NeighbourCellParamList, NeighbourCellParams, sizeofArray(NeighbourCellParams), neighbourpath);
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LOG_D(GNB_APP, "HO LOG: For the Cell: %d Neighbour Cell ELM NUM: %d\n", cell->nr_cell_id, NeighbourCellParamList.numelt);
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if (NeighbourCellParamList.numelt < 1)
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continue;
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cell->neighbour_cells = malloc(sizeof(seq_arr_t));
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AssertFatal(cell->neighbour_cells != NULL, "Memory exhausted!!!");
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seq_arr_init(cell->neighbour_cells, sizeof(nr_neighbour_gnb_configuration_t));
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for (int l = 0; l < NeighbourCellParamList.numelt; ++l) {
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nr_neighbour_gnb_configuration_t *neighbourCell = calloc(1, sizeof(nr_neighbour_gnb_configuration_t));
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AssertFatal(neighbourCell != NULL, "out of memory\n");
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neighbourCell->gNB_ID = *(NeighbourCellParamList.paramarray[l][GNB_CONFIG_N_CELL_GNB_ID_IDX].uptr);
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neighbourCell->nrcell_id = (uint64_t) * (NeighbourCellParamList.paramarray[l][GNB_CONFIG_N_CELL_NR_CELLID_IDX].u64ptr);
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neighbourCell->physicalCellId = *NeighbourCellParamList.paramarray[l][GNB_CONFIG_N_CELL_PHYSICAL_ID_IDX].uptr;
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neighbourCell->subcarrierSpacing = *NeighbourCellParamList.paramarray[l][GNB_CONFIG_N_CELL_SCS_IDX].uptr;
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neighbourCell->absoluteFrequencySSB = *NeighbourCellParamList.paramarray[l][GNB_CONFIG_N_CELL_ABS_FREQ_SSB_IDX].i64ptr;
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neighbourCell->tac = *NeighbourCellParamList.paramarray[l][GNB_CONFIG_N_CELL_TAC_IDX].uptr;
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char neighbour_plmn_path[CONFIG_MAXOPTLENGTH];
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sprintf(neighbour_plmn_path,
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"%s.%s.[%i].%s",
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neighbourpath,
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GNB_CONFIG_STRING_NEIGHBOUR_CELL_LIST,
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l,
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GNB_CONFIG_STRING_NEIGHBOUR_PLMN);
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paramdef_t NeighbourPlmn[] = GNBPLMNPARAMS_DESC;
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config_get(config_get_if(), NeighbourPlmn, sizeofArray(NeighbourPlmn), neighbour_plmn_path);
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neighbourCell->plmn.mcc = *NeighbourPlmn[GNB_MOBILE_COUNTRY_CODE_IDX].uptr;
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neighbourCell->plmn.mnc = *NeighbourPlmn[GNB_MOBILE_NETWORK_CODE_IDX].uptr;
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neighbourCell->plmn.mnc_digit_length = *NeighbourPlmn[GNB_MNC_DIGIT_LENGTH].uptr;
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seq_arr_push_back(cell->neighbour_cells, neighbourCell, sizeof(nr_neighbour_gnb_configuration_t));
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}
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seq_arr_push_back(rrc->neighbour_cell_configuration, cell, sizeof(neighbour_cell_configuration_t));
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}
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void *base = seq_arr_front(rrc->neighbour_cell_configuration);
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size_t nmemb = seq_arr_size(rrc->neighbour_cell_configuration);
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size_t element_size = sizeof(neighbour_cell_configuration_t);
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qsort(base, nmemb, element_size, sort_neighbour_cell_config_by_cell_id);
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}
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static void fill_measurement_configuration(uint8_t gnb_idx, gNB_RRC_INST *rrc)
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{
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char measurement_path[MAX_OPTNAME_SIZE + 8];
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sprintf(measurement_path, "%s.[%i].%s", GNB_CONFIG_STRING_GNB_LIST, gnb_idx, GNB_CONFIG_STRING_MEASUREMENT_CONFIGURATION);
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nr_measurement_configuration_t *measurementConfig = &rrc->measurementConfiguration;
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// Periodical Event Configuration
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char periodic_event_path[MAX_OPTNAME_SIZE + 8];
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sprintf(periodic_event_path,
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"%s.[%i].%s.%s",
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GNB_CONFIG_STRING_GNB_LIST,
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gnb_idx,
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GNB_CONFIG_STRING_MEASUREMENT_CONFIGURATION,
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MEASUREMENT_EVENTS_PERIODICAL);
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paramdef_t Periodical_EventParams[] = MEASUREMENT_PERIODICAL_GLOBALPARAMS_DESC;
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config_get(config_get_if(), Periodical_EventParams, sizeofArray(Periodical_EventParams), periodic_event_path);
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if (*Periodical_EventParams[MEASUREMENT_EVENTS_ENABLE_IDX].i64ptr) {
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nr_per_event_t *periodic_event = (nr_per_event_t *)calloc(1, sizeof(nr_per_event_t));
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periodic_event->includeBeamMeasurements = *Periodical_EventParams[MEASUREMENT_EVENTS_INCLUDE_BEAM_MEAS_IDX].i64ptr;
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periodic_event->maxReportCells = *Periodical_EventParams[MEASUREMENT_EVENTS_MAX_RS_INDEX_TO_REPORT].i64ptr;
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measurementConfig->per_event = periodic_event;
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}
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// A2 Event Configuration
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char a2_path[MAX_OPTNAME_SIZE + 8];
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sprintf(a2_path,
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"%s.[%i].%s.%s",
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GNB_CONFIG_STRING_GNB_LIST,
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gnb_idx,
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GNB_CONFIG_STRING_MEASUREMENT_CONFIGURATION,
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MEASUREMENT_EVENTS_A2);
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paramdef_t A2_EventParams[] = MEASUREMENT_A2_GLOBALPARAMS_DESC;
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config_get(config_get_if(), A2_EventParams, sizeofArray(A2_EventParams), a2_path);
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if (*A2_EventParams[MEASUREMENT_EVENTS_ENABLE_IDX].i64ptr) {
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nr_a2_event_t *a2_event = (nr_a2_event_t *)calloc(1, sizeof(nr_a2_event_t));
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a2_event->threshold_RSRP = *A2_EventParams[MEASUREMENT_EVENTS_A2_THRESHOLD_IDX].i64ptr;
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a2_event->timeToTrigger = *A2_EventParams[MEASUREMENT_EVENTS_TIMETOTRIGGER_IDX].i64ptr;
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measurementConfig->a2_event = a2_event;
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}
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// A3 Event Configuration
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paramlist_def_t A3_EventList = {MEASUREMENT_EVENTS_A3, NULL, 0};
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paramdef_t A3_EventParams[] = MEASUREMENT_A3_GLOBALPARAMS_DESC;
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config_getlist(config_get_if(), &A3_EventList, A3_EventParams, sizeofArray(A3_EventParams), measurement_path);
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LOG_D(GNB_APP, "HO LOG: A3 Configuration Exists: %d\n", A3_EventList.numelt);
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if (A3_EventList.numelt < 1)
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return;
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measurementConfig->a3_event_list = malloc(sizeof(seq_arr_t));
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seq_arr_init(measurementConfig->a3_event_list, sizeof(nr_a3_event_t));
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for (int i = 0; i < A3_EventList.numelt; i++) {
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nr_a3_event_t *a3_event = (nr_a3_event_t *)calloc(1, sizeof(nr_a3_event_t));
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AssertFatal(a3_event != NULL, "out of memory\n");
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a3_event->cell_id = *A3_EventList.paramarray[i][MEASUREMENT_EVENTS_CELL_ID_IDX].i64ptr;
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a3_event->timeToTrigger = *A3_EventList.paramarray[i][MEASUREMENT_EVENTS_TIMETOTRIGGER_IDX].i64ptr;
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a3_event->a3_offset = *A3_EventList.paramarray[i][MEASUREMENT_EVENTS_OFFSET_IDX].i64ptr;
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a3_event->hysteresis = *A3_EventList.paramarray[i][MEASUREMENT_EVENTS_HYSTERESIS_IDX].i64ptr;
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if (a3_event->cell_id == -1)
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measurementConfig->is_default_a3_configuration_exists = true;
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seq_arr_push_back(measurementConfig->a3_event_list, a3_event, sizeof(nr_a3_event_t));
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}
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}
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void RCconfig_NRRRC(gNB_RRC_INST *rrc)
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{
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@@ -1682,7 +1832,10 @@ void RCconfig_NRRRC(gNB_RRC_INST *rrc)
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char gnbpath[MAX_OPTNAME_SIZE + 8];
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sprintf(gnbpath,"%s.[%i]",GNB_CONFIG_STRING_GNB_LIST,k);
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fill_neighbour_cell_configuration(k, rrc);
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fill_measurement_configuration(k, rrc);
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paramdef_t PLMNParams[] = GNBPLMNPARAMS_DESC;
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paramlist_def_t PLMNParamList = {GNB_CONFIG_STRING_PLMN_LIST, NULL, 0};
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@@ -254,7 +254,92 @@ typedef enum {
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}
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/*-------------------------------------------------------------------------------------------------------------------------------------------------*/
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/*-------------------------------------------------------------------------------------------------------------------------------------------------*/
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/*-------------------------------------------------------------------------------------------------------------------------------------------------*/
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/* Neighbour Cell Configurations*/
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#define GNB_CONFIG_STRING_NEIGHBOUR_LIST "neighbour_list"
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// clang-format off
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#define GNB_NEIGHBOUR_LIST_PARAM_LIST { \
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/* optname helpstr paramflags XXXptr def val type numelt */ \
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{GNB_CONFIG_STRING_NRCELLID, "cell nrCell Id which has neighbours", PARAMFLAG_MANDATORY, .u64ptr=NULL, .defint64val=0, TYPE_UINT64, 0}, \
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{GNB_CONFIG_STRING_NEIGHBOUR_CELL_PHYSICAL_ID, "neighbour cell physical id", PARAMFLAG_MANDATORY, .uptr=NULL, .defuintval=0, TYPE_UINT, 0}, \
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}
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// clang-format on
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#define GNB_CONFIG_STRING_NEIGHBOUR_CELL_LIST "neighbour_cell_configuration"
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#define GNB_CONFIG_STRING_NEIGHBOUR_GNB_ID "gNB_ID"
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#define GNB_CONFIG_STRING_NEIGHBOUR_NR_CELLID "nr_cellid"
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#define GNB_CONFIG_STRING_NEIGHBOUR_CELL_PHYSICAL_ID "physical_cellId"
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#define GNB_CONFIG_STRING_NEIGHBOUR_CELL_ABS_FREQ_SSB "absoluteFrequencySSB"
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#define GNB_CONFIG_STRING_NEIGHBOUR_CELL_SCS "subcarrierSpacing"
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#define GNB_CONFIG_STRING_NEIGHBOUR_TRACKING_ARE_CODE "tracking_area_code"
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#define GNB_CONFIG_STRING_NEIGHBOUR_PLMN "plmn"
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#define GNB_CONFIG_N_CELL_GNB_ID_IDX 0
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#define GNB_CONFIG_N_CELL_NR_CELLID_IDX 1
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#define GNB_CONFIG_N_CELL_PHYSICAL_ID_IDX 2
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#define GNB_CONFIG_N_CELL_ABS_FREQ_SSB_IDX 3
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#define GNB_CONFIG_N_CELL_SCS_IDX 4
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#define GNB_CONFIG_N_CELL_TAC_IDX 5
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// clang-format off
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#define GNBNEIGHBOURCELLPARAMS_DESC { \
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/* optname helpstr paramflags XXXptr def val type numelt */ \
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{GNB_CONFIG_STRING_GNB_ID, "neighbour cell's gNB ID", PARAMFLAG_MANDATORY, .uptr=NULL, .defintval=0, TYPE_UINT, 0}, \
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{GNB_CONFIG_STRING_NRCELLID, "neighbour cell nrCell Id", PARAMFLAG_MANDATORY, .u64ptr=NULL, .defint64val=0, TYPE_UINT64, 0}, \
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{GNB_CONFIG_STRING_NEIGHBOUR_CELL_PHYSICAL_ID, "neighbour cell physical id", PARAMFLAG_MANDATORY, .uptr=NULL, .defuintval=0, TYPE_UINT, 0}, \
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{GNB_CONFIG_STRING_NEIGHBOUR_CELL_ABS_FREQ_SSB, "neighbour cell abs freq ssb", PARAMFLAG_MANDATORY, .i64ptr=NULL, .defint64val=0, TYPE_INT64, 0}, \
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{GNB_CONFIG_STRING_NEIGHBOUR_CELL_SCS, "neighbour cell scs", PARAMFLAG_MANDATORY, .uptr=NULL, .defuintval=0, TYPE_UINT, 0}, \
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{GNB_CONFIG_STRING_NEIGHBOUR_TRACKING_ARE_CODE, "neighbour cell tracking area", PARAMFLAG_MANDATORY, .uptr=NULL, .defuintval=0, TYPE_UINT, 0}, \
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}
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// clang-format on
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/* New Measurement Configurations*/
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#define GNB_CONFIG_STRING_MEASUREMENT_CONFIGURATION "nr_measurement_configuration"
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#define MEASUREMENT_EVENTS_PERIODICAL "Periodical"
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#define MEASUREMENT_EVENTS_A2 "A2"
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#define MEASUREMENT_EVENTS_A3 "A3"
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#define MEASUREMENT_EVENTS_OFFSET "offset"
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#define MEASUREMENT_EVENTS_HYSTERESIS "hysteresis"
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#define MEASUREMENT_EVENTS_TIME_TO_TRIGGER "time_to_trigger"
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#define MEASUREMENT_EVENTS_THRESHOLD "threshold"
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#define MEASUREMENT_EVENTS_PERIODICAL_BEAM_MEASUREMENT "includeBeamMeasurements"
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#define MEASUREMENT_EVENTS_PERIODICAL_NR_OF_RS_INDEXES "maxNrofRS_IndexesToReport"
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#define MEASUREMENT_EVENTS_CELL_ID "cell_id"
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#define MEASUREMENT_EVENT_ENABLE "enable"
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// clang-format off
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#define MEASUREMENT_A3_GLOBALPARAMS_DESC \
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{ \
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{MEASUREMENT_EVENTS_CELL_ID, "neighbour cellId for A3Report", 0, .i64ptr = NULL, .defint64val = -1, TYPE_INT64, 0}, \
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{MEASUREMENT_EVENTS_TIME_TO_TRIGGER, "a3 time to trigger", 0, .i64ptr = NULL, .defint64val = 1, TYPE_INT64, 0}, \
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{MEASUREMENT_EVENTS_OFFSET, "a3 offset", 0, .i64ptr = NULL, .defint64val = 60, TYPE_INT64, 0}, \
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{MEASUREMENT_EVENTS_HYSTERESIS, "a3 hysteresis", 0, .i64ptr = NULL, .defint64val = 0, TYPE_INT64, 0}, \
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}
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#define MEASUREMENT_A2_GLOBALPARAMS_DESC \
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{ \
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{MEASUREMENT_EVENT_ENABLE, "enable the event", 0, .i64ptr = NULL, .defint64val = 1, TYPE_INT64, 0}, \
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{MEASUREMENT_EVENTS_TIME_TO_TRIGGER, "a2 time to trigger", 0, .i64ptr = NULL, .defint64val = 1, TYPE_INT64, 0}, \
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{MEASUREMENT_EVENTS_THRESHOLD, "a2 threshold", 0, .i64ptr = NULL, .defint64val = 60, TYPE_INT64, 0}, \
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}
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#define MEASUREMENT_PERIODICAL_GLOBALPARAMS_DESC \
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{ \
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{MEASUREMENT_EVENT_ENABLE, "enable the event", 0, .i64ptr = NULL, .defint64val = 1, TYPE_INT64, 0}, \
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{MEASUREMENT_EVENTS_PERIODICAL_BEAM_MEASUREMENT, "includeBeamMeasurements", PARAMFLAG_BOOL, .i64ptr = NULL, .defint64val = 1, TYPE_INT64, 0}, \
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{MEASUREMENT_EVENTS_PERIODICAL_NR_OF_RS_INDEXES, "maxNrofRS_IndexesToReport", 0, .i64ptr = NULL, .defint64val = 4, TYPE_INT64, 0}, \
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}
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// clang-format on
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#define MEASUREMENT_EVENTS_CELL_ID_IDX 0
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#define MEASUREMENT_EVENTS_ENABLE_IDX 0
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#define MEASUREMENT_EVENTS_TIMETOTRIGGER_IDX 1
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#define MEASUREMENT_EVENTS_A2_THRESHOLD_IDX 2
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#define MEASUREMENT_EVENTS_OFFSET_IDX 2
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#define MEASUREMENT_EVENTS_HYSTERESIS_IDX 3
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#define MEASUREMENT_EVENTS_INCLUDE_BEAM_MEAS_IDX 1
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#define MEASUREMENT_EVENTS_MAX_RS_INDEX_TO_REPORT 2
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/* PLMN ID configuration */
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