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openairinterface5g/openair2/RRC/NR_UE/rrc_sl_preconfig.c
T
Bartosz Podrygajlo 01066a3f0d Fix some sizeof and switch-case errors reported by CodeChecker 
CodeChecker is a python application that collects reports from static analyzers like
clang-tidy, clangsa, cppcheck.
2024-10-07 09:35:24 +02:00

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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
*/
#define RRC_SL_PRECONFIG
#define RRC_SL_PRECONFIG_C
#include "oai_asn1.h"
#include "NR_SL-PreconfigurationNR-r16.h"
#include "common/utils/LOG/log.h"
#include "sl_preconfig_paramvalues.h"
#include "common/config/config_userapi.h"
#include "rrc_defs.h"
#include "LAYER2/NR_MAC_UE/mac_proto.h"
#include "nr-uesoftmodem.h"
void free_sl_rrc(NR_UE_RRC_INST_t *rrc)
{
if (rrc->sl_preconfig) {
ASN_STRUCT_FREE(asn_DEF_NR_SL_PreconfigurationNR_r16, rrc->sl_preconfig);
}
}
static void prepare_NR_SL_SyncConfig(NR_SL_SyncConfig_r16_t *sl_syncconfig)
{
// Hysteris when evaluating SyncRef UE
sl_syncconfig->sl_SyncRefMinHyst_r16 = NULL;
// Hysteris when evaluating SyncRef UE
sl_syncconfig->sl_SyncRefDiffHyst_r16 = NULL;
// Filtering for SL RSRP
sl_syncconfig->sl_filterCoefficient_r16 = NULL;
// SSB Periodicity within 16 frames.
sl_syncconfig->sl_SSB_TimeAllocation1_r16 = calloc(1, sizeof(NR_SL_SSB_TimeAllocation_r16_t));
sl_syncconfig->sl_SSB_TimeAllocation1_r16->sl_NumSSB_WithinPeriod_r16 = calloc(1, sizeof(long));
sl_syncconfig->sl_SSB_TimeAllocation1_r16->sl_TimeOffsetSSB_r16 = calloc(1, sizeof(long));
sl_syncconfig->sl_SSB_TimeAllocation1_r16->sl_TimeInterval_r16 = calloc(1, sizeof(long));
sl_syncconfig->sl_SSB_TimeAllocation2_r16 = NULL;
sl_syncconfig->sl_SSB_TimeAllocation3_r16 = NULL;
//SLSS Id
sl_syncconfig->sl_SSID_r16 = NULL;
// Threshold to be used in coverage
sl_syncconfig->txParameters_r16.syncTxThreshIC_r16 = NULL;
// Threshold to be used when Out of coverage
sl_syncconfig->txParameters_r16.syncTxThreshOoC_r16 = NULL;
// Syncconfig is used when UE is synced to GNSS if set, else if UE is synced to eNB/gNB
sl_syncconfig->gnss_Sync_r16 = calloc(1, sizeof(long));
*sl_syncconfig->gnss_Sync_r16 = 0; // GNSS
char aprefix[MAX_OPTNAME_SIZE*2 + 8];
paramdef_t SL_SYNCCFGPARAMS[] = SL_SYNCPARAMS_DESC(sl_syncconfig);
paramlist_def_t SL_SYNCFGParamList = {SL_CONFIG_STRING_SL_SYNCCONFIG_LIST, NULL, 0};
sprintf(aprefix, "%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION, 0);
config_getlist(config_get_if(), &SL_SYNCFGParamList, NULL, 0, aprefix);
LOG_I(RRC, "NUM SL-SYNCCFG elem in cfg file:%d\n", SL_SYNCFGParamList.numelt);
sprintf(aprefix, "%s.[%i].%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION, 0,SL_CONFIG_STRING_SL_SYNCCONFIG_LIST, 0);
config_get(config_get_if(), SL_SYNCCFGPARAMS, sizeofArray(SL_SYNCCFGPARAMS), aprefix);
}
static void prepare_NR_SL_ResourcePool(NR_SL_ResourcePool_r16_t *sl_res_pool,
uint16_t is_txpool,
uint16_t is_sl_syncsource)
{
// PSCCH configuration
sl_res_pool->sl_PSCCH_Config_r16 = calloc(1, sizeof(*sl_res_pool->sl_PSCCH_Config_r16));
sl_res_pool->sl_PSCCH_Config_r16->present = NR_SetupRelease_SL_PSCCH_Config_r16_PR_setup;
sl_res_pool->sl_PSCCH_Config_r16->choice.setup = calloc(1, sizeof(NR_SL_PSCCH_Config_r16_t));
// Indicates number of symbols for PSCCH in a resource pool
sl_res_pool->sl_PSCCH_Config_r16->choice.setup->sl_TimeResourcePSCCH_r16 = calloc(1, sizeof(long));
// Indicates number of PRBs for PSCCH in a resource pool
sl_res_pool->sl_PSCCH_Config_r16->choice.setup->sl_FreqResourcePSCCH_r16 = calloc(1, sizeof(long));
// Inititation during PSCCH DMRS Sequence generation
sl_res_pool->sl_PSCCH_Config_r16->choice.setup->sl_DMRS_ScrambleID_r16 = calloc(1, sizeof(long));
*sl_res_pool->sl_PSCCH_Config_r16->choice.setup->sl_DMRS_ScrambleID_r16 = 0;
// num reserve bits used for first stage SCI
sl_res_pool->sl_PSCCH_Config_r16->choice.setup->sl_NumReservedBits_r16 = calloc(1, sizeof(long));
*sl_res_pool->sl_PSCCH_Config_r16->choice.setup->sl_NumReservedBits_r16 = 2;
//PSSCH Configuration
sl_res_pool->sl_PSSCH_Config_r16 = calloc(1, sizeof(NR_SetupRelease_SL_PSSCH_Config_r16_t));
sl_res_pool->sl_PSSCH_Config_r16->present = NR_SetupRelease_SL_PSSCH_Config_r16_PR_setup;
sl_res_pool->sl_PSSCH_Config_r16->choice.setup = calloc(1, sizeof(NR_SL_PSSCH_Config_r16_t));
sl_res_pool->sl_PSSCH_Config_r16->choice.setup->sl_PSSCH_DMRS_TimePatternList_r16 =
calloc(1, sizeof(*sl_res_pool->sl_PSSCH_Config_r16->choice.setup->sl_PSSCH_DMRS_TimePatternList_r16));
for(int i=0; i<3; i++) {
long *p = calloc(1, sizeof(long));
*p = 2+i; // valid values: 2..4
ASN_SEQUENCE_ADD(&sl_res_pool->sl_PSSCH_Config_r16->choice.setup->sl_PSSCH_DMRS_TimePatternList_r16->list, p);
}
//PSFCH configuration
sl_res_pool->sl_PSFCH_Config_r16 = NULL;
// indicates allowed sync sources which are allowed to use this resource pool
sl_res_pool->sl_SyncAllowed_r16 = calloc(1, sizeof(NR_SL_SyncAllowed_r16_t));
//configured resources can be used if UE is directly/indirectly synced to network.
sl_res_pool->sl_SyncAllowed_r16->gnbEnb_Sync_r16 = NULL;
//configured resources can be used if UE is directly/indirectly synced to GNSS.
sl_res_pool->sl_SyncAllowed_r16->gnss_Sync_r16 = calloc(1, sizeof(long));
*sl_res_pool->sl_SyncAllowed_r16->gnss_Sync_r16 = NR_SL_SyncAllowed_r16__gnss_Sync_r16_true;
//configured resources can be used if UE is directly/indirectly synced to SYNC REF UE.
sl_res_pool->sl_SyncAllowed_r16->ue_Sync_r16 = calloc(1, sizeof(long));
*sl_res_pool->sl_SyncAllowed_r16->ue_Sync_r16 = NR_SL_SyncAllowed_r16__ue_Sync_r16_true;
//Min freq domain resources used for resource sensing. Size of Subchannels
sl_res_pool->sl_SubchannelSize_r16 = calloc(1, sizeof(long));
sl_res_pool->dummy = NULL;
// lowest RB index of lowest subch in this resource pool
sl_res_pool->sl_StartRB_Subchannel_r16 = calloc(1, sizeof(long));
//number of subchannels in this res pool. contiguous PRBs
sl_res_pool->sl_NumSubchannel_r16 = calloc(1, sizeof(long));
// 64QAM table is default. in case other MCS tables needs tobe used.
sl_res_pool->sl_Additional_MCS_Table_r16 = NULL;
sl_res_pool->sl_ThreshS_RSSI_CBR_r16 = NULL;
sl_res_pool->sl_TimeWindowSizeCBR_r16 = NULL;
sl_res_pool->sl_TimeWindowSizeCR_r16 = NULL;
sl_res_pool->sl_PTRS_Config_r16 = NULL;
sl_res_pool->sl_UE_SelectedConfigRP_r16 = NULL;
sl_res_pool->sl_RxParametersNcell_r16 = NULL;
sl_res_pool->sl_ZoneConfigMCR_List_r16 = NULL;
sl_res_pool->sl_FilterCoefficient_r16 = NULL;
//number of contiguous PRBS in this res pool.
sl_res_pool->sl_RB_Number_r16 = calloc(1, sizeof(long));
sl_res_pool->sl_PreemptionEnable_r16 = NULL;
sl_res_pool->sl_PriorityThreshold_UL_URLLC_r16 = NULL;
sl_res_pool->sl_PriorityThreshold_r16 = NULL;
sl_res_pool->sl_X_Overhead_r16 = NULL;
sl_res_pool->sl_PowerControl_r16 = NULL;
sl_res_pool->sl_TxPercentageList_r16 = NULL;
sl_res_pool->sl_MinMaxMCS_List_r16 = NULL;
sl_res_pool->ext1 = calloc(1, sizeof(*sl_res_pool->ext1));
sl_res_pool->ext1->sl_TimeResource_r16 = calloc(1, sizeof(*sl_res_pool->ext1->sl_TimeResource_r16));
sl_res_pool->ext1->sl_TimeResource_r16->size = 8;
sl_res_pool->ext1->sl_TimeResource_r16->bits_unused = 4;
sl_res_pool->ext1->sl_TimeResource_r16->buf = calloc(sl_res_pool->ext1->sl_TimeResource_r16->size, sizeof(uint8_t));
// EX: BITMAP 10101010.. indicating every alternating slot supported for sidelink
for (int i=0;i<sl_res_pool->ext1->sl_TimeResource_r16->size;i++) {
if (is_txpool) {
sl_res_pool->ext1->sl_TimeResource_r16->buf[i] = (is_sl_syncsource) ? 0xAA //0x88;//0xAA;
: 0x55;//0x11;//0x55;
} else {
sl_res_pool->ext1->sl_TimeResource_r16->buf[i] = (is_sl_syncsource) ? 0x55 //0x88;//0xAA;
: 0xAA;//0x11;//0x55;
}
}
// mask out unused bits
sl_res_pool->ext1->sl_TimeResource_r16->buf[sl_res_pool->ext1->sl_TimeResource_r16->size - 1] &= (0 - (1 << (sl_res_pool->ext1->sl_TimeResource_r16->bits_unused)));
char aprefix[MAX_OPTNAME_SIZE*2 + 8];
paramdef_t SL_POOLPARAMS[] = SL_RESPOOLPARAMS_DESC(sl_res_pool);
if (is_txpool)
sprintf(aprefix, "%s.[%i].%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION, 0,SL_CONFIG_STRING_SL_TX_RPOOL_LIST, 0);
else
sprintf(aprefix, "%s.[%i].%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION, 0,SL_CONFIG_STRING_SL_RX_RPOOL_LIST, 0);
config_get(config_get_if(), SL_POOLPARAMS, sizeofArray(SL_POOLPARAMS), aprefix);
}
static void prepare_NR_SL_BWPConfigCommon(NR_SL_BWP_ConfigCommon_r16_t *sl_bwp,
uint16_t num_tx_pools,
uint16_t num_rx_pools,
uint16_t sl_syncsource)
{
sl_bwp->sl_BWP_Generic_r16 = calloc(1, sizeof(NR_SL_BWP_Generic_r16_t));
sl_bwp->sl_BWP_Generic_r16->sl_BWP_r16 = calloc(1, sizeof(NR_BWP_t));
// if Cyclicprefix is NULL, then default value Normal cyclic prefix is configured. else EXT CP.
sl_bwp->sl_BWP_Generic_r16->sl_BWP_r16->cyclicPrefix = NULL;
// Value can be between symbols 7 to 14
sl_bwp->sl_BWP_Generic_r16->sl_LengthSymbols_r16 = calloc(1, sizeof(long));
// Value can be between symbols 0 to 7
sl_bwp->sl_BWP_Generic_r16->sl_StartSymbol_r16 = calloc(1, sizeof(long));
sl_bwp->sl_BWP_Generic_r16->sl_PSBCH_Config_r16 = calloc(1, sizeof(*sl_bwp->sl_BWP_Generic_r16->sl_PSBCH_Config_r16));
// PSBCH CONFIG contains PO and alpha for PSBCH powercontrol.
sl_bwp->sl_BWP_Generic_r16->sl_PSBCH_Config_r16->present = NR_SetupRelease_SL_PSBCH_Config_r16_PR_release;
sl_bwp->sl_BWP_Generic_r16->sl_TxDirectCurrentLocation_r16 = NULL;
char aprefix[MAX_OPTNAME_SIZE*2 + 8];
paramdef_t SL_BWPPARAMS[] = SL_BWPPARAMS_DESC(sl_bwp);
paramlist_def_t SL_BWPParamList = {SL_CONFIG_STRING_SL_BWP_LIST, NULL, 0};
sprintf(aprefix, "%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION, 0);
config_getlist(config_get_if(), &SL_BWPParamList, NULL, 0, aprefix);
LOG_I(RRC, "NUM SL-BWP elem in cfg file:%d\n", SL_BWPParamList.numelt);
sprintf(aprefix, "%s.[%i].%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION, 0, SL_CONFIG_STRING_SL_BWP_LIST, 0);
config_get(config_get_if(), SL_BWPPARAMS, sizeofArray(SL_BWPPARAMS), aprefix);
sl_bwp->sl_BWP_PoolConfigCommon_r16 = calloc(1, sizeof(NR_SL_BWP_PoolConfigCommon_r16_t));
paramlist_def_t SL_RxPoolParamList = {SL_CONFIG_STRING_SL_RX_RPOOL_LIST, NULL, 0};
sprintf(aprefix, "%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION, 0);
config_getlist(config_get_if(), &SL_RxPoolParamList, NULL, 0, aprefix);
LOG_I(RRC, "NUM Rx RPOOLs in cfg file:%d\n", SL_RxPoolParamList.numelt);
AssertFatal(SL_RxPoolParamList.numelt <= 1 && num_rx_pools <= 1, "Only Max 1 RX Respool Supported now\n");
if (num_rx_pools || SL_RxPoolParamList.numelt) {
// Receiving resource pool.
NR_SL_ResourcePool_r16_t *respool = calloc(1, sizeof(*respool));
sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_RxPool_r16 = calloc(1, sizeof(*sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_RxPool_r16));
ASN_SEQUENCE_ADD(&sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_RxPool_r16->list, respool);
// Fill RX resource pool
prepare_NR_SL_ResourcePool(sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_RxPool_r16->list.array[0], 0, sl_syncsource);
} else
sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_RxPool_r16 = NULL;
paramlist_def_t SL_TxPoolParamList = {SL_CONFIG_STRING_SL_TX_RPOOL_LIST, NULL, 0};
sprintf(aprefix, "%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION, 0);
config_getlist(config_get_if(), &SL_TxPoolParamList, NULL, 0, aprefix);
LOG_I(RRC, "NUM Tx RPOOL in cfg file:%d\n", SL_TxPoolParamList.numelt);
AssertFatal(SL_TxPoolParamList.numelt <= 1 && num_tx_pools <= 1, "Only Max 1 TX Respool Supported now\n");
if (num_tx_pools || SL_TxPoolParamList.numelt) {
//resource pool(s) to transmit NR SL
NR_SL_ResourcePoolConfig_r16_t *respoolcfg = calloc(1, sizeof(*respoolcfg));
sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_TxPoolSelectedNormal_r16 =
calloc(1, sizeof(*sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_TxPoolSelectedNormal_r16));
ASN_SEQUENCE_ADD(&sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_TxPoolSelectedNormal_r16->list, respoolcfg);
sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_TxPoolSelectedNormal_r16->list.array[0]->sl_ResourcePoolID_r16 = 0;
sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_TxPoolSelectedNormal_r16->list.array[0]->sl_ResourcePool_r16 = calloc(1, sizeof(NR_SL_ResourcePool_r16_t));
// Fill tx resource pool
prepare_NR_SL_ResourcePool(sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_TxPoolSelectedNormal_r16->list.array[0]->sl_ResourcePool_r16, 1, sl_syncsource);
} else
sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_TxPoolSelectedNormal_r16 = NULL;
sl_bwp->sl_BWP_PoolConfigCommon_r16->sl_TxPoolExceptional_r16 = NULL;
}
static void prepare_NR_SL_FreqConfigCommon(NR_SL_FreqConfigCommon_r16_t *sl_fcfg,
uint16_t num_tx_pools,
uint16_t num_rx_pools,
uint16_t sl_syncsource)
{
// Sub carrier spacing used on this frequency configured.
NR_SCS_SpecificCarrier_t *scs_specific = calloc(1, sizeof(*scs_specific));
ASN_SEQUENCE_ADD(&sl_fcfg->sl_SCS_SpecificCarrierList_r16.list, scs_specific);
// NR bands for Sidelink n47, n38.
// N47band - 5855Mhz - 5925Mhz
//sl_fcfg->sl_AbsoluteFrequencyPointA_r16 = 792000; //freq 5880Mhz
//SL SSB chosen to be located from RB10 to RB21. points to the middle of the SSB block.
//SSB location should be within Sidelink BWP
//792000 + 10*12*2 + 66*2. channel raster is 15Khz for band47
sl_fcfg->sl_AbsoluteFrequencySSB_r16 = calloc(1, sizeof(NR_ARFCN_ValueNR_t));
//NR SL transmission with a 7.5 Khz shift to the LTE raster. if absent, freq shift is disabled.
//Required if carrier freq configured for NR SL shared by LTE SL
sl_fcfg->frequencyShift7p5khzSL_r16 = NULL;
//NR SL transmission with valueN*5Khz shift to LTE raster.
sl_fcfg->valueN_r16 = 0;
char aprefix[MAX_OPTNAME_SIZE*2 + 8];
paramdef_t SL_FCCPARAMS[] = SL_FCCPARAMS_DESC(sl_fcfg);
paramlist_def_t SL_FCCParamList = {SL_CONFIG_STRING_SL_FCC_LIST, NULL, 0};
sprintf(aprefix, "%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION,0);
config_getlist(config_get_if(), &SL_FCCParamList, NULL, 0, aprefix);
LOG_I(RRC, "NUM SL-FCC elem in cfg file:%d\n", SL_FCCParamList.numelt);
sprintf(aprefix, "%s.[%i].%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION,0, SL_CONFIG_STRING_SL_FCC_LIST, 0);
config_get(config_get_if(), SL_FCCPARAMS, sizeofArray(SL_FCCPARAMS), aprefix);
// Sidelink BWP configuration.
// In REL16, 17 SUPPORTS only 1 SIDELINK Bandwidth part
NR_SL_BWP_ConfigCommon_r16_t *bwpcfgcommon = calloc(1, sizeof(*bwpcfgcommon));
sl_fcfg->sl_BWP_List_r16 = calloc(1, sizeof(*sl_fcfg->sl_BWP_List_r16));
ASN_SEQUENCE_ADD(&sl_fcfg->sl_BWP_List_r16->list, bwpcfgcommon);
prepare_NR_SL_BWPConfigCommon(sl_fcfg->sl_BWP_List_r16->list.array[0], num_tx_pools, num_rx_pools, sl_syncsource);
// sync prio between GNSS and gNB/eNB
sl_fcfg->sl_SyncPriority_r16 = calloc(1, sizeof(long));
*sl_fcfg->sl_SyncPriority_r16 = 0; // Set to GNSS
// If TRUE/1 - Network can be selected as sync source directly/indirectly in case syncprio = GNSS.
sl_fcfg->sl_NbAsSync_r16 = calloc(1, sizeof(long));
*sl_fcfg->sl_NbAsSync_r16 = 1;
// config info related to rx and tx of SL SYNC SIGNALS (SLSS)
NR_SL_SyncConfig_r16_t *synccfg = calloc(1, sizeof(*synccfg));
sl_fcfg->sl_SyncConfigList_r16 = calloc(1, sizeof(*sl_fcfg->sl_SyncConfigList_r16));
ASN_SEQUENCE_ADD(&sl_fcfg->sl_SyncConfigList_r16->list, synccfg);
prepare_NR_SL_SyncConfig(sl_fcfg->sl_SyncConfigList_r16->list.array[0]);
}
NR_SL_PreconfigurationNR_r16_t *prepare_NR_SL_PRECONFIGURATION(uint16_t num_tx_pools,
uint16_t num_rx_pools,
uint16_t sl_syncsource)
{
NR_SL_PreconfigurationNR_r16_t *sl_preconfiguration = CALLOC(1, sizeof(NR_SL_PreconfigurationNR_r16_t));
NR_SidelinkPreconfigNR_r16_t *sl_preconfig = &sl_preconfiguration->sidelinkPreconfigNR_r16;
//FILL in Frequency config common
NR_SL_FreqConfigCommon_r16_t *freqcfgcommon = calloc(1, sizeof(*freqcfgcommon));
sl_preconfig->sl_PreconfigFreqInfoList_r16 = calloc(1, sizeof(*sl_preconfig->sl_PreconfigFreqInfoList_r16));
//Supported only 1 FREQs for NR SL communication.
ASN_SEQUENCE_ADD(&sl_preconfig->sl_PreconfigFreqInfoList_r16->list, freqcfgcommon);
prepare_NR_SL_FreqConfigCommon(sl_preconfig->sl_PreconfigFreqInfoList_r16->list.array[0],
num_tx_pools, num_rx_pools, sl_syncsource);
// NR Frequency list
sl_preconfig->sl_PreconfigNR_AnchorCarrierFreqList_r16 = NULL;
// EUTRA Frequency list
sl_preconfig->sl_PreconfigEUTRA_AnchorCarrierFreqList_r16 = NULL;
// NR sidelink radio bearer(s) configuration(s)
sl_preconfig->sl_RadioBearerPreConfigList_r16 = NULL; // fill later
// NR sidelink RLC bearer(s) configuration(s)
sl_preconfig->sl_RLC_BearerPreConfigList_r16 = NULL; // fill later
//Measurement and reporting configuration
sl_preconfig->sl_MeasPreConfig_r16 = NULL;
//DFN timing offset used if GNSS is used as sync source.
//1-.001ms, 2 - .002ms so on. value 0 if absent.
sl_preconfig->sl_OffsetDFN_r16 = NULL;
// t400 started upon txn of RRCreconfSidelink.
sl_preconfig->t400_r16 = NULL;
//Max num consecutive HARQ DTX before triggering SL RLF.
sl_preconfig->sl_MaxNumConsecutiveDTX_r16 = NULL;
//Priority of SSB transmission and reception. used in comparison to UL rxns/txns
sl_preconfig->sl_SSB_PriorityNR_r16 = NULL;
//Contains TDD ULDL confiuguration to be used by the sync source UE.
//Currently set to the default used in OAI 5G. Changes TBD..
//For the UE with sync reference as another UE, TDD ULDL config is determined from SL-MIB
sl_preconfig->sl_PreconfigGeneral_r16 = calloc(1, sizeof(NR_SL_PreconfigGeneral_r16_t));
sl_preconfig->sl_PreconfigGeneral_r16->sl_TDD_Configuration_r16 = calloc(1, sizeof(NR_TDD_UL_DL_ConfigCommon_t));
NR_TDD_UL_DL_ConfigCommon_t *tdd_uldl_cfg = sl_preconfig->sl_PreconfigGeneral_r16->sl_TDD_Configuration_r16;
tdd_uldl_cfg->pattern1.ext1 = NULL;
tdd_uldl_cfg->pattern2 = NULL;
char aprefix[MAX_OPTNAME_SIZE*2 + 8];
sprintf(aprefix, "%s.[%i]", SL_CONFIG_STRING_SL_PRECONFIGURATION,0);
paramdef_t SLTDDCFG_PARAMS[] = SL_TDDCONFIGPARAMS_DESC(tdd_uldl_cfg);
config_get(config_get_if(), SLTDDCFG_PARAMS, sizeofArray(SLTDDCFG_PARAMS), aprefix);
NR_SL_FreqConfigCommon_r16_t *fcc = sl_preconfig->sl_PreconfigFreqInfoList_r16->list.array[0];
tdd_uldl_cfg->referenceSubcarrierSpacing =
fcc->sl_SCS_SpecificCarrierList_r16.list.array[0]->subcarrierSpacing;
NR_SL_BWP_ConfigCommon_r16_t *sl_bwp = fcc->sl_BWP_List_r16->list.array[0];
sl_bwp->sl_BWP_Generic_r16->sl_BWP_r16->subcarrierSpacing =
fcc->sl_SCS_SpecificCarrierList_r16.list.array[0]->subcarrierSpacing;
// Configurations used for UE autonomous resource selection
sl_preconfig->sl_UE_SelectedPreConfig_r16 = NULL;
// indicates if CSI reporting supported in SL unicast.
sl_preconfig->sl_CSI_Acquisition_r16 = NULL;
// ROHC profiles for NR SL
sl_preconfig->sl_RoHC_Profiles_r16 = NULL;
// MaxCID value for PDCP as specified in 38.323
sl_preconfig->sl_MaxCID_r16 = NULL;
return sl_preconfiguration;
}
int configure_NR_SL_Preconfig(NR_UE_RRC_INST_t *rrc,int sync_source)
{
NR_SL_PreconfigurationNR_r16_t *sl_preconfig = NULL;
int num_txpools = 0, num_rxpools = 0;
if (sync_source) {
//SL-Preconfiguration with 1 txpool, 0 rxpool if UE is a syncsource
num_txpools = 1;
sl_preconfig = prepare_NR_SL_PRECONFIGURATION(num_txpools,num_rxpools,sync_source);
if (LOG_DEBUGFLAG(DEBUG_ASN1)) {
xer_fprint(stdout, &asn_DEF_NR_SL_PreconfigurationNR_r16, sl_preconfig);
}
} else {
//SL-Preconfiguration with 0 txpool, 1 rxpool if UE is not a syncsource
num_rxpools = 1;
sl_preconfig = prepare_NR_SL_PRECONFIGURATION(num_txpools,num_rxpools,sync_source);
if (LOG_DEBUGFLAG(DEBUG_ASN1)) {
xer_fprint(stdout, &asn_DEF_NR_SL_PreconfigurationNR_r16, sl_preconfig);
}
}
rrc->sl_preconfig = sl_preconfig;
return 0;
}
/*decode SL-BCH (SL-MIB) message*/
static int8_t nr_sl_rrc_ue_decode_SL_MIB(const uint8_t gNB_index,
uint8_t *const bufferP,
const uint8_t buffer_len)
{
NR_MasterInformationBlockSidelink_t *sl_mib = NULL;
asn_dec_rval_t dec_rval = uper_decode_complete(NULL, &asn_DEF_NR_MasterInformationBlockSidelink,
(void **)&sl_mib,
(const void *)bufferP, buffer_len);
int ret = 0;
if ((dec_rval.code != RC_OK) || (dec_rval.consumed == 0)) {
LOG_E(NR_RRC, "SL-MIB decode error\n");
ret = -1;
} else {
int bits_unused = sl_mib->directFrameNumber_r16.bits_unused;
uint16_t val_fn = sl_mib->directFrameNumber_r16.buf[0];
val_fn = (val_fn << (8 - bits_unused)) + (sl_mib->directFrameNumber_r16.buf[1] >> bits_unused);
uint8_t val_slot = sl_mib->slotIndex_r16.buf[0];
LOG_D(NR_RRC, "%d:%d SL-RRC - Received MIB.\n", val_fn, val_slot >> 1);
LOG_D(NR_RRC, "SL-MIB Contents - Incoverage:%d\n", sl_mib->inCoverage_r16);
LOG_D(NR_RRC, "SL-MIB Contents - sl-TDD-Config:%x\n" , *((uint16_t *)(sl_mib->sl_TDD_Config_r16.buf)));
ASN_STRUCT_FREE(asn_DEF_NR_MasterInformationBlockSidelink, sl_mib);
}
return ret;
}
void nr_rrc_ue_decode_NR_SBCCH_SL_BCH_Message(NR_UE_RRC_INST_t *rrc,
const uint8_t gNB_index,
const frame_t frame,
const int slot,
uint8_t* pduP,
const sdu_size_t pdu_len,
const uint16_t rx_slss_id)
{
nr_sl_rrc_ue_decode_SL_MIB(gNB_index, (uint8_t*)pduP, pdu_len);
DevAssert(rrc->sl_preconfig);
NR_SL_FreqConfigCommon_r16_t *fcfg = NULL;
if (rrc->sl_preconfig->sidelinkPreconfigNR_r16.sl_PreconfigFreqInfoList_r16)
fcfg = rrc->sl_preconfig->sidelinkPreconfigNR_r16.sl_PreconfigFreqInfoList_r16->list.array[0];
DevAssert(fcfg);
NR_SL_SSB_TimeAllocation_r16_t *sl_SSB_TimeAllocation = NULL;
//Current implementation only supports one SSB Timeallocation
//Extend RRC to use multiple SSB Time allocations TBD....
if (fcfg->sl_SyncConfigList_r16)
sl_SSB_TimeAllocation = fcfg->sl_SyncConfigList_r16->list.array[0]->sl_SSB_TimeAllocation1_r16;
DevAssert(sl_SSB_TimeAllocation);
nr_rrc_mac_config_req_sl_mib(rrc->ue_id,
sl_SSB_TimeAllocation,
rx_slss_id,
pduP);
return;
}
void rrc_ue_process_sidelink_Preconfiguration(NR_UE_RRC_INST_t *rrc_inst,
sl_sync_source_enum_t sync_source)
{
AssertFatal(rrc_inst, "RRC instance not created.\n");
NR_SL_PreconfigurationNR_r16_t *sl_preconfig = rrc_inst->sl_preconfig;
AssertFatal(rrc_inst->sl_preconfig, "Check if SL-preconfig was created");
AssertFatal(sync_source != SL_SYNC_SOURCE_GNBENB, "Sync source GNB not supported\n");
nr_rrc_mac_config_req_sl_preconfig(rrc_inst->ue_id, sl_preconfig, sync_source);
//TBD.. These should be chosen by RRC according to 3GPP 38.331 RRC specification.
//Currently hardcoding the values to these
uint16_t slss_id = 671, ssb_ta_index = 1;
//12 bits -sl-TDD-config will be filled by MAC
//Incoverage 1bit is FALSE as this is mode 2
//DFN, sfn will be filled by PHY
uint8_t sl_mib_payload[4] = {0,0,0,0};
NR_SL_SSB_TimeAllocation_r16_t *ssb_ta = NULL;
NR_SL_FreqConfigCommon_r16_t *fcfg = NULL;
NR_SL_SyncConfig_r16_t *synccfg = NULL;
if (sl_preconfig->sidelinkPreconfigNR_r16.sl_PreconfigFreqInfoList_r16)
fcfg = sl_preconfig->sidelinkPreconfigNR_r16.sl_PreconfigFreqInfoList_r16->list.array[0];
AssertFatal(fcfg, "Fcfg cannot be NULL\n");
if (fcfg->sl_SyncConfigList_r16)
synccfg = fcfg->sl_SyncConfigList_r16->list.array[0];
AssertFatal(synccfg, "Synccfg cannot be NULL\n");
if (ssb_ta_index == 1)
ssb_ta = synccfg->sl_SSB_TimeAllocation1_r16;
else if (ssb_ta_index == 2)
ssb_ta = synccfg->sl_SSB_TimeAllocation2_r16;
else if (ssb_ta_index == 3)
ssb_ta = synccfg->sl_SSB_TimeAllocation3_r16;
else DevAssert(0);
AssertFatal(ssb_ta, "SSB_timeallocation cannot be NULL\n");
if (sync_source == SL_SYNC_SOURCE_LOCAL_TIMING || sync_source == SL_SYNC_SOURCE_GNSS)
nr_rrc_mac_transmit_slss_req(rrc_inst->ue_id,sl_mib_payload, slss_id, ssb_ta);
}
//For Sidelink mode 2 operation this prepares the sidelink preconfiguration
void init_sidelink(NR_UE_RRC_INST_t *rrc)
{
int sync_ref = get_softmodem_params()->sync_ref;
if (get_softmodem_params()->sl_mode == 2) {
//Preparation of the Sidelink PRE-Configuration message
configure_NR_SL_Preconfig(rrc, sync_ref);
}
}
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