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7e2487c29412d6490a10b7c8c5f74783fcf6399f
openairinterface5g/openair2/LAYER2/NR_MAC_gNB/config.c
T
Robert Schmidt 7e2487c294 Handle CellGroupConfig completely at MAC 
- MAC creates CellGroupConfig and sends to RRC
- the RRC does not manually update the CellGroupConfig
- MAC handles the RRC processing timer

In this commit, any updates to the CellGroupConfig previously done at
the RRC don't work. In other words, MIMO etc don't work; this is
implemented in the next commit.

Note that the change to take out spCellConfig during reestablishment is
because after reestablishment, as per spec (38.331 5.3.7.2), the UE
should drop the spCellConfig, which we generate by default on the first
UE connection.

Furthermore, add a new variable apply_cellgroup to signal if, after RRC
processing timer, we wish to apply the CellGroup. In some situations,
e.g., Msg.4 ack, we do not want to apply the CellGroup, because for
instance in reestablishment, we await for a reconfiguration of cellgroup
that would be triggered too early.
2023-09-22 08:22:15 +02:00

620 lines
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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 config.c
* \brief gNB configuration performed by RRC or as a consequence of RRC procedures
* \author Navid Nikaein and Raymond Knopp, WEI-TAI CHEN
* \date 2010 - 2014, 2018
* \version 0.1
* \company Eurecom, NTUST
* \email: navid.nikaein@eurecom.fr, kroempa@gmail.com
* @ingroup _mac
*/
#include "COMMON/platform_types.h"
#include "common/platform_constants.h"
#include "common/ran_context.h"
#include "common/utils/nr/nr_common.h"
#include "common/utils/LOG/log.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "NR_BCCH-BCH-Message.h"
#include "NR_ServingCellConfigCommon.h"
#include "uper_encoder.h"
#include "LAYER2/NR_MAC_gNB/mac_proto.h"
#include "SCHED_NR/phy_frame_config_nr.h"
#include "openair1/PHY/defs_gNB.h"
#include "NR_MIB.h"
#include "LAYER2/NR_MAC_COMMON/nr_mac_common.h"
#include "../../../../nfapi/oai_integration/vendor_ext.h"
/* Softmodem params */
#include "executables/softmodem-common.h"
extern RAN_CONTEXT_t RC;
//extern int l2_init_gNB(void);
extern uint8_t nfapi_mode;
static void process_rlcBearerConfig(struct NR_CellGroupConfig__rlc_BearerToAddModList *rlc_bearer2add_list,
struct NR_CellGroupConfig__rlc_BearerToReleaseList *rlc_bearer2release_list,
NR_UE_sched_ctrl_t *sched_ctrl)
{
if (rlc_bearer2release_list) {
for (int i = 0; i < rlc_bearer2release_list->list.count; i++) {
for (int idx = 0; idx < sched_ctrl->dl_lc_num; idx++) {
if (sched_ctrl->dl_lc_ids[idx] == *rlc_bearer2release_list->list.array[i]) {
const int remaining_lcs = sched_ctrl->dl_lc_num - idx - 1;
memmove(&sched_ctrl->dl_lc_ids[idx], &sched_ctrl->dl_lc_ids[idx + 1], sizeof(sched_ctrl->dl_lc_ids[idx]) * remaining_lcs);
sched_ctrl->dl_lc_num--;
break;
}
}
}
}
if (rlc_bearer2add_list) {
// keep lcids
for (int i = 0; i < rlc_bearer2add_list->list.count; i++) {
const int lcid = rlc_bearer2add_list->list.array[i]->logicalChannelIdentity;
bool found = false;
for (int idx = 0; idx < sched_ctrl->dl_lc_num; idx++) {
if (sched_ctrl->dl_lc_ids[idx] == lcid) {
found = true;
break;
}
}
if (!found) {
sched_ctrl->dl_lc_num++;
sched_ctrl->dl_lc_ids[sched_ctrl->dl_lc_num - 1] = lcid;
LOG_D(NR_MAC, "Adding LCID %d (%s %d)\n", lcid, lcid < 4 ? "SRB" : "DRB", lcid);
}
}
}
LOG_D(NR_MAC, "In %s: total num of active bearers %d) \n",
__FUNCTION__,
sched_ctrl->dl_lc_num);
}
void process_CellGroup(NR_CellGroupConfig_t *CellGroup, NR_UE_info_t *UE)
{
/* we assume that this function is mutex-protected from outside */
NR_SCHED_ENSURE_LOCKED(&RC.nrmac[0]->sched_lock);
AssertFatal(CellGroup, "CellGroup is null\n");
NR_MAC_CellGroupConfig_t *mac_CellGroupConfig = CellGroup->mac_CellGroupConfig;
if (mac_CellGroupConfig) {
//process_drx_Config(sched_ctrl,mac_CellGroupConfig->drx_Config);
//process_schedulingRequestConfig(sched_ctrl,mac_CellGroupConfig->schedulingRequestConfig);
//process_bsrConfig(sched_ctrl,mac_CellGroupConfig->bsr_Config);
//process_tag_Config(sched_ctrl,mac_CellGroupConfig->tag_Config);
//process_phr_Config(sched_ctrl,mac_CellGroupConfig->phr_Config);
}
if (CellGroup->spCellConfig && CellGroup->spCellConfig->reconfigurationWithSync
&& CellGroup->spCellConfig->reconfigurationWithSync->rach_ConfigDedicated
&& CellGroup->spCellConfig->reconfigurationWithSync->rach_ConfigDedicated->choice.uplink->cfra) {
nr_mac_prepare_ra_ue(RC.nrmac[0], UE->rnti, CellGroup);
}
process_rlcBearerConfig(CellGroup->rlc_BearerToAddModList, CellGroup->rlc_BearerToReleaseList, &UE->UE_sched_ctrl);
}
static void config_common(gNB_MAC_INST *nrmac, int pdsch_AntennaPorts, int pusch_AntennaPorts, NR_ServingCellConfigCommon_t *scc)
{
nfapi_nr_config_request_scf_t *cfg = &nrmac->config[0];
nrmac->common_channels[0].ServingCellConfigCommon = scc;
// Carrier configuration
struct NR_FrequencyInfoDL *frequencyInfoDL = scc->downlinkConfigCommon->frequencyInfoDL;
int bw_index = get_supported_band_index(frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing,
*frequencyInfoDL->frequencyBandList.list.array[0],
frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->carrierBandwidth);
cfg->carrier_config.dl_bandwidth.value =
get_supported_bw_mhz(*frequencyInfoDL->frequencyBandList.list.array[0] > 256 ? FR2 : FR1, bw_index);
cfg->carrier_config.dl_bandwidth.tl.tag = NFAPI_NR_CONFIG_DL_BANDWIDTH_TAG; // temporary
cfg->num_tlv++;
LOG_I(NR_MAC, "%s() dl_BandwidthP:%d\n", __FUNCTION__, cfg->carrier_config.dl_bandwidth.value);
cfg->carrier_config.dl_frequency.value = from_nrarfcn(*frequencyInfoDL->frequencyBandList.list.array[0],
*scc->ssbSubcarrierSpacing,
frequencyInfoDL->absoluteFrequencyPointA)
/ 1000; // freq in kHz
cfg->carrier_config.dl_frequency.tl.tag = NFAPI_NR_CONFIG_DL_FREQUENCY_TAG;
cfg->num_tlv++;
for (int i = 0; i < 5; i++) {
if (i == frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing) {
cfg->carrier_config.dl_grid_size[i].value = frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->carrierBandwidth;
cfg->carrier_config.dl_k0[i].value = frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->offsetToCarrier;
cfg->carrier_config.dl_grid_size[i].tl.tag = NFAPI_NR_CONFIG_DL_GRID_SIZE_TAG;
cfg->carrier_config.dl_k0[i].tl.tag = NFAPI_NR_CONFIG_DL_K0_TAG;
cfg->num_tlv++;
cfg->num_tlv++;
} else {
cfg->carrier_config.dl_grid_size[i].value = 0;
cfg->carrier_config.dl_k0[i].value = 0;
}
}
struct NR_FrequencyInfoUL *frequencyInfoUL = scc->uplinkConfigCommon->frequencyInfoUL;
bw_index = get_supported_band_index(frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing,
*frequencyInfoUL->frequencyBandList->list.array[0],
frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->carrierBandwidth);
cfg->carrier_config.uplink_bandwidth.value =
get_supported_bw_mhz(*frequencyInfoUL->frequencyBandList->list.array[0] > 256 ? FR2 : FR1, bw_index);
cfg->carrier_config.uplink_bandwidth.tl.tag = NFAPI_NR_CONFIG_UPLINK_BANDWIDTH_TAG; // temporary
cfg->num_tlv++;
LOG_I(NR_MAC, "%s() dl_BandwidthP:%d\n", __FUNCTION__, cfg->carrier_config.uplink_bandwidth.value);
int UL_pointA;
if (frequencyInfoUL->absoluteFrequencyPointA == NULL)
UL_pointA = frequencyInfoDL->absoluteFrequencyPointA;
else
UL_pointA = *frequencyInfoUL->absoluteFrequencyPointA;
cfg->carrier_config.uplink_frequency.value = from_nrarfcn(*frequencyInfoUL->frequencyBandList->list.array[0],
*scc->ssbSubcarrierSpacing,
UL_pointA)
/ 1000; // freq in kHz
cfg->carrier_config.uplink_frequency.tl.tag = NFAPI_NR_CONFIG_UPLINK_FREQUENCY_TAG;
cfg->num_tlv++;
for (int i = 0; i < 5; i++) {
if (i == frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing) {
cfg->carrier_config.ul_grid_size[i].value = frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->carrierBandwidth;
cfg->carrier_config.ul_k0[i].value = frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->offsetToCarrier;
cfg->carrier_config.ul_grid_size[i].tl.tag = NFAPI_NR_CONFIG_UL_GRID_SIZE_TAG;
cfg->carrier_config.ul_k0[i].tl.tag = NFAPI_NR_CONFIG_UL_K0_TAG;
cfg->num_tlv++;
cfg->num_tlv++;
} else {
cfg->carrier_config.ul_grid_size[i].value = 0;
cfg->carrier_config.ul_k0[i].value = 0;
}
}
uint32_t band = *frequencyInfoDL->frequencyBandList.list.array[0];
frequency_range_t frequency_range = band < 100 ? FR1 : FR2;
frame_type_t frame_type = get_frame_type(*frequencyInfoDL->frequencyBandList.list.array[0], *scc->ssbSubcarrierSpacing);
nrmac->common_channels[0].frame_type = frame_type;
// Cell configuration
cfg->cell_config.phy_cell_id.value = *scc->physCellId;
cfg->cell_config.phy_cell_id.tl.tag = NFAPI_NR_CONFIG_PHY_CELL_ID_TAG;
cfg->num_tlv++;
cfg->cell_config.frame_duplex_type.value = frame_type;
cfg->cell_config.frame_duplex_type.tl.tag = NFAPI_NR_CONFIG_FRAME_DUPLEX_TYPE_TAG;
cfg->num_tlv++;
// SSB configuration
cfg->ssb_config.ss_pbch_power.value = scc->ss_PBCH_BlockPower;
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++;
// PRACH configuration
uint8_t nb_preambles = 64;
NR_RACH_ConfigCommon_t *rach_ConfigCommon = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup;
if (rach_ConfigCommon->totalNumberOfRA_Preambles != NULL)
nb_preambles = *rach_ConfigCommon->totalNumberOfRA_Preambles;
cfg->prach_config.prach_sequence_length.value = rach_ConfigCommon->prach_RootSequenceIndex.present - 1;
cfg->prach_config.prach_sequence_length.tl.tag = NFAPI_NR_CONFIG_PRACH_SEQUENCE_LENGTH_TAG;
cfg->num_tlv++;
if (rach_ConfigCommon->msg1_SubcarrierSpacing)
cfg->prach_config.prach_sub_c_spacing.value = *rach_ConfigCommon->msg1_SubcarrierSpacing;
else
cfg->prach_config.prach_sub_c_spacing.value = frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing;
cfg->prach_config.prach_sub_c_spacing.tl.tag = NFAPI_NR_CONFIG_PRACH_SUB_C_SPACING_TAG;
cfg->num_tlv++;
cfg->prach_config.restricted_set_config.value = rach_ConfigCommon->restrictedSetConfig;
cfg->prach_config.restricted_set_config.tl.tag = NFAPI_NR_CONFIG_RESTRICTED_SET_CONFIG_TAG;
cfg->num_tlv++;
cfg->prach_config.prach_ConfigurationIndex.value = rach_ConfigCommon->rach_ConfigGeneric.prach_ConfigurationIndex;
cfg->prach_config.prach_ConfigurationIndex.tl.tag = NFAPI_NR_CONFIG_PRACH_CONFIG_INDEX_TAG;
cfg->num_tlv++;
switch (rach_ConfigCommon->rach_ConfigGeneric.msg1_FDM) {
case 0:
cfg->prach_config.num_prach_fd_occasions.value = 1;
break;
case 1:
cfg->prach_config.num_prach_fd_occasions.value = 2;
break;
case 2:
cfg->prach_config.num_prach_fd_occasions.value = 4;
break;
case 3:
cfg->prach_config.num_prach_fd_occasions.value = 8;
break;
default:
AssertFatal(1 == 0, "msg1 FDM identifier %ld undefined (0,1,2,3) \n", rach_ConfigCommon->rach_ConfigGeneric.msg1_FDM);
}
cfg->prach_config.num_prach_fd_occasions.tl.tag = NFAPI_NR_CONFIG_NUM_PRACH_FD_OCCASIONS_TAG;
cfg->num_tlv++;
cfg->prach_config.prach_ConfigurationIndex.value = rach_ConfigCommon->rach_ConfigGeneric.prach_ConfigurationIndex;
cfg->prach_config.prach_ConfigurationIndex.tl.tag = NFAPI_NR_CONFIG_PRACH_CONFIG_INDEX_TAG;
cfg->num_tlv++;
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 (int i = 0; i < cfg->prach_config.num_prach_fd_occasions.value; i++) {
nfapi_nr_num_prach_fd_occasions_t *prach_fd_occasion = &cfg->prach_config.num_prach_fd_occasions_list[i];
// prach_fd_occasion->num_prach_fd_occasions = i;
if (cfg->prach_config.prach_sequence_length.value)
prach_fd_occasion->prach_root_sequence_index.value = rach_ConfigCommon->prach_RootSequenceIndex.choice.l139;
else
prach_fd_occasion->prach_root_sequence_index.value = rach_ConfigCommon->prach_RootSequenceIndex.choice.l839;
prach_fd_occasion->prach_root_sequence_index.tl.tag = NFAPI_NR_CONFIG_PRACH_ROOT_SEQUENCE_INDEX_TAG;
cfg->num_tlv++;
prach_fd_occasion->k1.value =
NRRIV2PRBOFFSET(scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE)
+ rach_ConfigCommon->rach_ConfigGeneric.msg1_FrequencyStart
+ (get_N_RA_RB(cfg->prach_config.prach_sub_c_spacing.value,
frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing)
* i);
if (get_softmodem_params()->sa) {
prach_fd_occasion->k1.value =
NRRIV2PRBOFFSET(scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE)
+ rach_ConfigCommon->rach_ConfigGeneric.msg1_FrequencyStart
+ (get_N_RA_RB(cfg->prach_config.prach_sub_c_spacing.value,
frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing)
* i);
} else {
prach_fd_occasion->k1.value = rach_ConfigCommon->rach_ConfigGeneric.msg1_FrequencyStart
+ (get_N_RA_RB(cfg->prach_config.prach_sub_c_spacing.value,
frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing)
* i);
}
prach_fd_occasion->k1.tl.tag = NFAPI_NR_CONFIG_K1_TAG;
cfg->num_tlv++;
prach_fd_occasion->prach_zero_corr_conf.value = rach_ConfigCommon->rach_ConfigGeneric.zeroCorrelationZoneConfig;
prach_fd_occasion->prach_zero_corr_conf.tl.tag = NFAPI_NR_CONFIG_PRACH_ZERO_CORR_CONF_TAG;
cfg->num_tlv++;
prach_fd_occasion->num_root_sequences.value = compute_nr_root_seq(rach_ConfigCommon, nb_preambles, frame_type, frequency_range);
prach_fd_occasion->num_root_sequences.tl.tag = NFAPI_NR_CONFIG_NUM_ROOT_SEQUENCES_TAG;
cfg->num_tlv++;
prach_fd_occasion->num_unused_root_sequences.tl.tag = NFAPI_NR_CONFIG_NUM_UNUSED_ROOT_SEQUENCES_TAG;
prach_fd_occasion->num_unused_root_sequences.value = 0;
cfg->num_tlv++;
}
cfg->prach_config.ssb_per_rach.value = rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->present - 1;
cfg->prach_config.ssb_per_rach.tl.tag = NFAPI_NR_CONFIG_SSB_PER_RACH_TAG;
cfg->num_tlv++;
// SSB Table Configuration
cfg->ssb_table.ssb_offset_point_a.value =
get_ssb_offset_to_pointA(*scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencySSB,
scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA,
*scc->ssbSubcarrierSpacing,
frequency_range);
cfg->ssb_table.ssb_offset_point_a.tl.tag = NFAPI_NR_CONFIG_SSB_OFFSET_POINT_A_TAG;
cfg->num_tlv++;
cfg->ssb_table.ssb_period.value = *scc->ssb_periodicityServingCell;
cfg->ssb_table.ssb_period.tl.tag = NFAPI_NR_CONFIG_SSB_PERIOD_TAG;
cfg->num_tlv++;
cfg->ssb_table.ssb_subcarrier_offset.value =
get_ssb_subcarrier_offset(*scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencySSB,
scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA);
AssertFatal(cfg->ssb_table.ssb_subcarrier_offset.value < 16,
"cannot handle ssb_subcarrier_offset %d resulting from Point A %ld SSB %ld: please increase dl_absoluteFrequencyPointA "
"in the config by 16\n",
cfg->ssb_table.ssb_subcarrier_offset.value,
scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA,
*scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencySSB);
cfg->ssb_table.ssb_subcarrier_offset.tl.tag = NFAPI_NR_CONFIG_SSB_SUBCARRIER_OFFSET_TAG;
cfg->num_tlv++;
nrmac->ssb_SubcarrierOffset = cfg->ssb_table.ssb_subcarrier_offset.value;
nrmac->ssb_OffsetPointA = cfg->ssb_table.ssb_offset_point_a.value;
LOG_I(NR_MAC,
"ssb_OffsetPointA %d, ssb_SubcarrierOffset %d\n",
cfg->ssb_table.ssb_offset_point_a.value,
cfg->ssb_table.ssb_subcarrier_offset.value);
switch (scc->ssb_PositionsInBurst->present) {
case 1:
cfg->ssb_table.ssb_mask_list[0].ssb_mask.value = scc->ssb_PositionsInBurst->choice.shortBitmap.buf[0] << 24;
cfg->ssb_table.ssb_mask_list[1].ssb_mask.value = 0;
break;
case 2:
cfg->ssb_table.ssb_mask_list[0].ssb_mask.value = ((uint32_t)scc->ssb_PositionsInBurst->choice.mediumBitmap.buf[0]) << 24;
cfg->ssb_table.ssb_mask_list[1].ssb_mask.value = 0;
break;
case 3:
cfg->ssb_table.ssb_mask_list[0].ssb_mask.value = 0;
cfg->ssb_table.ssb_mask_list[1].ssb_mask.value = 0;
for (int i = 0; i < 4; i++) {
cfg->ssb_table.ssb_mask_list[0].ssb_mask.value += (uint32_t)scc->ssb_PositionsInBurst->choice.longBitmap.buf[3 - i]
<< i * 8;
cfg->ssb_table.ssb_mask_list[1].ssb_mask.value += (uint32_t)scc->ssb_PositionsInBurst->choice.longBitmap.buf[7 - i]
<< i * 8;
}
break;
default:
AssertFatal(1 == 0, "SSB bitmap size value %d undefined (allowed values 1,2,3) \n", scc->ssb_PositionsInBurst->present);
}
cfg->ssb_table.ssb_mask_list[0].ssb_mask.tl.tag = NFAPI_NR_CONFIG_SSB_MASK_TAG;
cfg->ssb_table.ssb_mask_list[1].ssb_mask.tl.tag = NFAPI_NR_CONFIG_SSB_MASK_TAG;
cfg->num_tlv += 2;
// logical antenna ports
cfg->carrier_config.num_tx_ant.value = pdsch_AntennaPorts;
AssertFatal(pdsch_AntennaPorts > 0 && pdsch_AntennaPorts < 33, "pdsch_AntennaPorts in 1...32\n");
cfg->carrier_config.num_tx_ant.tl.tag = NFAPI_NR_CONFIG_NUM_TX_ANT_TAG;
int num_ssb = 0;
for (int i = 0; i < 32; i++) {
cfg->ssb_table.ssb_beam_id_list[i].beam_id.tl.tag = NFAPI_NR_CONFIG_BEAM_ID_TAG;
if ((cfg->ssb_table.ssb_mask_list[0].ssb_mask.value >> (31 - i)) & 1) {
cfg->ssb_table.ssb_beam_id_list[i].beam_id.value = num_ssb;
num_ssb++;
}
cfg->num_tlv++;
}
for (int i = 0; i < 32; i++) {
cfg->ssb_table.ssb_beam_id_list[32 + i].beam_id.tl.tag = NFAPI_NR_CONFIG_BEAM_ID_TAG;
if ((cfg->ssb_table.ssb_mask_list[1].ssb_mask.value >> (31 - i)) & 1) {
cfg->ssb_table.ssb_beam_id_list[32 + i].beam_id.value = num_ssb;
num_ssb++;
}
cfg->num_tlv++;
}
cfg->carrier_config.num_rx_ant.value = pusch_AntennaPorts;
AssertFatal(pusch_AntennaPorts > 0 && pusch_AntennaPorts < 13, "pusch_AntennaPorts in 1...12\n");
cfg->carrier_config.num_rx_ant.tl.tag = NFAPI_NR_CONFIG_NUM_RX_ANT_TAG;
LOG_I(NR_MAC,
"Set RX antenna number to %d, Set TX antenna number to %d (num ssb %d: %x,%x)\n",
cfg->carrier_config.num_tx_ant.value,
cfg->carrier_config.num_rx_ant.value,
num_ssb,
cfg->ssb_table.ssb_mask_list[0].ssb_mask.value,
cfg->ssb_table.ssb_mask_list[1].ssb_mask.value);
AssertFatal(cfg->carrier_config.num_tx_ant.value > 0,
"carrier_config.num_tx_ant.value %d !\n",
cfg->carrier_config.num_tx_ant.value);
cfg->num_tlv++;
cfg->num_tlv++;
// TDD Table Configuration
if (cfg->cell_config.frame_duplex_type.value == TDD) {
cfg->tdd_table.tdd_period.tl.tag = NFAPI_NR_CONFIG_TDD_PERIOD_TAG;
cfg->num_tlv++;
if (scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1 == NULL) {
cfg->tdd_table.tdd_period.value = scc->tdd_UL_DL_ConfigurationCommon->pattern1.dl_UL_TransmissionPeriodicity;
} else {
AssertFatal(scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1->dl_UL_TransmissionPeriodicity_v1530 != NULL,
"In %s: scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1->dl_UL_TransmissionPeriodicity_v1530 is null\n",
__FUNCTION__);
cfg->tdd_table.tdd_period.value = *scc->tdd_UL_DL_ConfigurationCommon->pattern1.ext1->dl_UL_TransmissionPeriodicity_v1530;
}
LOG_I(NR_MAC, "Setting TDD configuration period to %d\n", cfg->tdd_table.tdd_period.value);
int periods_per_frame = set_tdd_config_nr(cfg,
frequencyInfoUL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing,
scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofDownlinkSlots,
scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofDownlinkSymbols,
scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofUplinkSlots,
scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofUplinkSymbols);
if (periods_per_frame < 0)
LOG_E(NR_MAC, "TDD configuration can not be done\n");
else {
LOG_I(NR_MAC, "TDD has been properly configurated\n");
nrmac->tdd_beam_association = (int16_t *)malloc16(periods_per_frame * sizeof(int16_t));
}
}
}
void nr_mac_config_scc(gNB_MAC_INST *nrmac, NR_ServingCellConfigCommon_t *scc, const nr_mac_config_t *config)
{
DevAssert(nrmac != NULL);
DevAssert(scc != NULL);
DevAssert(config != NULL);
//NR_SCHED_LOCK(&nrmac->sched_lock);
AssertFatal(scc->ssb_PositionsInBurst->present > 0 && scc->ssb_PositionsInBurst->present < 4,
"SSB Bitmap type %d is not valid\n",
scc->ssb_PositionsInBurst->present);
int n = nr_slots_per_frame[*scc->ssbSubcarrierSpacing];
if (*scc->ssbSubcarrierSpacing == 0)
n <<= 1; // to have enough room for feedback possibly beyond the frame we need a larger array at 15kHz SCS
nrmac->common_channels[0].vrb_map_UL = calloc(n * MAX_BWP_SIZE, sizeof(uint16_t));
nrmac->vrb_map_UL_size = n;
AssertFatal(nrmac->common_channels[0].vrb_map_UL,
"could not allocate memory for RC.nrmac[]->common_channels[0].vrb_map_UL\n");
LOG_I(NR_MAC, "Configuring common parameters from NR ServingCellConfig\n");
int num_pdsch_antenna_ports = config->pdsch_AntennaPorts.N1 * config->pdsch_AntennaPorts.N2 * config->pdsch_AntennaPorts.XP;
config_common(nrmac, num_pdsch_antenna_ports, config->pusch_AntennaPorts, scc);
if (NFAPI_MODE == NFAPI_MODE_PNF || NFAPI_MODE == NFAPI_MODE_VNF) {
// fake that the gNB is configured in nFAPI mode, which would normally be
// done in a NR_PHY_config_req, but in this mode, there is no PHY
RC.gNB[0]->configured = 1;
} else {
NR_PHY_Config_t phycfg = {.Mod_id = 0, .CC_id = 0, .cfg = &nrmac->config[0]};
DevAssert(nrmac->if_inst->NR_PHY_config_req);
nrmac->if_inst->NR_PHY_config_req(&phycfg);
}
find_SSB_and_RO_available(nrmac);
const NR_TDD_UL_DL_Pattern_t *tdd = scc->tdd_UL_DL_ConfigurationCommon ? &scc->tdd_UL_DL_ConfigurationCommon->pattern1 : NULL;
int nr_slots_period = n;
int nr_dl_slots = n;
int nr_ulstart_slot = 0;
if (tdd) {
nr_dl_slots = tdd->nrofDownlinkSlots + (tdd->nrofDownlinkSymbols != 0);
nr_ulstart_slot = get_first_ul_slot(tdd->nrofDownlinkSlots, tdd->nrofDownlinkSymbols, tdd->nrofUplinkSymbols);
nr_slots_period /= get_nb_periods_per_frame(tdd->dl_UL_TransmissionPeriodicity);
} else {
// if TDD configuration is not present and the band is not FDD, it means it is a dynamic TDD configuration
AssertFatal(nrmac->common_channels[0].frame_type == FDD,"Dynamic TDD not handled yet\n");
}
for (int slot = 0; slot < n; ++slot) {
nrmac->dlsch_slot_bitmap[slot / 64] |= (uint64_t)((slot % nr_slots_period) < nr_dl_slots) << (slot % 64);
nrmac->ulsch_slot_bitmap[slot / 64] |= (uint64_t)((slot % nr_slots_period) >= nr_ulstart_slot) << (slot % 64);
LOG_D(NR_MAC,
"slot %d DL %d UL %d\n",
slot,
(nrmac->dlsch_slot_bitmap[slot / 64] & ((uint64_t)1 << (slot % 64))) != 0,
(nrmac->ulsch_slot_bitmap[slot / 64] & ((uint64_t)1 << (slot % 64))) != 0);
}
if (get_softmodem_params()->phy_test) {
nrmac->pre_processor_dl = nr_preprocessor_phytest;
nrmac->pre_processor_ul = nr_ul_preprocessor_phytest;
} else {
nrmac->pre_processor_dl = nr_init_fr1_dlsch_preprocessor(0);
nrmac->pre_processor_ul = nr_init_fr1_ulsch_preprocessor(0);
}
if (get_softmodem_params()->sa > 0) {
NR_COMMON_channels_t *cc = &nrmac->common_channels[0];
for (int n = 0; n < NR_NB_RA_PROC_MAX; n++) {
NR_RA_t *ra = &cc->ra[n];
ra->cfra = false;
ra->rnti = 0;
ra->preambles.num_preambles = MAX_NUM_NR_PRACH_PREAMBLES;
ra->preambles.preamble_list = malloc(MAX_NUM_NR_PRACH_PREAMBLES * sizeof(*ra->preambles.preamble_list));
for (int i = 0; i < MAX_NUM_NR_PRACH_PREAMBLES; i++)
ra->preambles.preamble_list[i] = i;
}
}
//NR_SCHED_UNLOCK(&nrmac->sched_lock);
}
void nr_mac_configure_sib1(gNB_MAC_INST *nrmac, const f1ap_plmn_t *plmn, uint64_t cellID, int tac)
{
AssertFatal(get_softmodem_params()->sa > 0, "error: SIB1 only applicable for SA\n");
NR_COMMON_channels_t *cc = &nrmac->common_channels[0];
NR_ServingCellConfigCommon_t *scc = cc->ServingCellConfigCommon;
NR_BCCH_DL_SCH_Message_t *sib1 = get_SIB1_NR(scc, plmn, cellID, tac);
cc->sib1 = sib1;
cc->sib1_bcch_length = encode_SIB1_NR(sib1, cc->sib1_bcch_pdu, sizeof(cc->sib1_bcch_pdu));
AssertFatal(cc->sib1_bcch_length > 0, "could not encode SIB1\n");
}
bool nr_mac_add_test_ue(gNB_MAC_INST *nrmac, uint32_t rnti, NR_CellGroupConfig_t *CellGroup)
{
DevAssert(nrmac != NULL);
DevAssert(CellGroup != NULL);
DevAssert(get_softmodem_params()->phy_test);
NR_SCHED_LOCK(&nrmac->sched_lock);
NR_UE_info_t* UE = add_new_nr_ue(nrmac, rnti, CellGroup);
if (UE) {
LOG_I(NR_MAC,"Force-added new UE %x with initial CellGroup\n", rnti);
process_CellGroup(CellGroup, UE);
} else {
LOG_E(NR_MAC,"Error adding UE %04x\n", rnti);
}
NR_SCHED_UNLOCK(&nrmac->sched_lock);
return UE != NULL;
}
bool nr_mac_prepare_ra_ue(gNB_MAC_INST *nrmac, uint32_t rnti, NR_CellGroupConfig_t *CellGroup)
{
DevAssert(nrmac != NULL);
DevAssert(CellGroup != NULL);
NR_SCHED_ENSURE_LOCKED(&nrmac->sched_lock);
// NSA case: need to pre-configure CFRA
const int CC_id = 0;
NR_COMMON_channels_t *cc = &nrmac->common_channels[CC_id];
uint8_t ra_index = 0;
/* checking for free RA process */
for(; ra_index < NR_NB_RA_PROC_MAX; ra_index++) {
if((cc->ra[ra_index].state == RA_IDLE) && (!cc->ra[ra_index].cfra)) break;
}
if (ra_index == NR_NB_RA_PROC_MAX) {
LOG_E(NR_MAC, "RA processes are not available for CFRA RNTI %04x\n", rnti);
return false;
}
NR_RA_t *ra = &cc->ra[ra_index];
ra->cfra = true;
ra->rnti = rnti;
ra->CellGroup = CellGroup;
struct NR_CFRA *cfra = CellGroup->spCellConfig->reconfigurationWithSync->rach_ConfigDedicated->choice.uplink->cfra;
uint8_t num_preamble = cfra->resources.choice.ssb->ssb_ResourceList.list.count;
ra->preambles.num_preambles = num_preamble;
ra->preambles.preamble_list = calloc(ra->preambles.num_preambles, sizeof(*ra->preambles.preamble_list));
for (int i = 0; i < cc->num_active_ssb; i++) {
for (int j = 0; j < num_preamble; j++) {
if (cc->ssb_index[i] == cfra->resources.choice.ssb->ssb_ResourceList.list.array[j]->ssb) {
// one dedicated preamble for each beam
ra->preambles.preamble_list[i] = cfra->resources.choice.ssb->ssb_ResourceList.list.array[j]->ra_PreambleIndex;
break;
}
}
}
LOG_I(NR_MAC, "Added new %s process for UE RNTI %04x with initial CellGroup\n", ra->cfra ? "CFRA" : "CBRA", rnti);
return true;
}
/* Prepare a new CellGroupConfig to be applied for this UE. We cannot
* immediatly apply it, as we have to wait for the reconfiguration through RRC.
* This function sets up everything to apply the reconfiguration. Later, we
* will trigger the timer with nr_mac_enable_ue_rrc_processing_timer(); upon
* expiry nr_mac_apply_cellgroup() will apply the CellGroupConfig (radio config
* etc). */
bool nr_mac_prepare_cellgroup_update(gNB_MAC_INST *nrmac, NR_UE_info_t *UE, NR_CellGroupConfig_t *CellGroup)
{
DevAssert(nrmac != NULL);
DevAssert(UE != NULL);
DevAssert(CellGroup != NULL);
/* we assume that this function is mutex-protected from outside */
NR_SCHED_ENSURE_LOCKED(&nrmac->sched_lock);
process_CellGroup(CellGroup, UE);
UE->reconfigCellGroup = CellGroup;
UE->expect_reconfiguration = true;
return true;
}
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