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33bab5ba4adc4b08036d75374eb8d117a1e668ee
openairinterface5g/openair2/LAYER2/NR_MAC_UE/nr_ue_dci_configuration.c
T
cig 33bab5ba4a Changes to support DL IP traffic and timing adjustments in do-ra mode: 
- enabled procedures that were already called for phy-test mode
- enabled setup of DRB for the current C-RNTI
- enhanced information, debugging and warning logging at MAC/RLC/PDCP level
2020-12-01 15:09:57 +01:00

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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
*/
/* \file nr_ue_dci_configuration.c
* \brief functions for generating dci search procedures based on RRC Serving Cell Group Configuration
* \author R. Knopp, G. Casati
* \date 2020
* \version 0.2
* \company Eurecom, Fraunhofer IIS
* \email: knopp@eurecom.fr, guido.casati@iis.fraunhofer.de
* \note
* \warning
*/
#include "mac_proto.h"
#include "mac_defs.h"
#include "assertions.h"
#include "LAYER2/NR_MAC_UE/mac_extern.h"
#include "mac_defs.h"
#include "common/utils/nr/nr_common.h"
#include "executables/softmodem-common.h"
#include <stdio.h>
#ifdef NR_PDCCH_DCI_TOOLS_DEBUG
#define LOG_DCI_D(a...) printf("\t\t<-NR_PDCCH_DCI_TOOLS_DEBUG (nr_extract_dci_info) ->" a)
#else
#define LOG_DCI_D(a...)
#endif
#define LOG_DCI_PARM(a...) LOG_D(PHY,"\t<-NR_PDCCH_DCI_TOOLS_DEBUG (nr_generate_ue_ul_dlsch_params_from_dci)" a)
// #define DEBUG_DCI
dci_pdu_rel15_t *def_dci_pdu_rel15;
void fill_dci_search_candidates(NR_SearchSpace_t *ss,fapi_nr_dl_config_dci_dl_pdu_rel15_t *rel15) {
LOG_D(MAC,"Filling search candidates for DCI\n");
rel15->number_of_candidates=4;
rel15->CCE[0]=0;
rel15->L[0]=4;
rel15->CCE[1]=4;
rel15->L[1]=4;
rel15->CCE[2]=8;
rel15->L[2]=4;
rel15->CCE[3]=12;
rel15->L[3]=4;
}
void config_dci_pdu(NR_UE_MAC_INST_t *mac, fapi_nr_dl_config_dci_dl_pdu_rel15_t *rel15, fapi_nr_dl_config_request_t *dl_config, int rnti_type, int ss_id){
uint16_t monitoringSymbolsWithinSlot = 0;
uint8_t bwp_id = 1, coreset_id = 1;
int sps = 0;
def_dci_pdu_rel15 = calloc(1,2*sizeof(dci_pdu_rel15_t));
AssertFatal(mac->scc != NULL, "scc is null\n");
NR_ServingCellConfigCommon_t *scc = mac->scc;
NR_BWP_DownlinkCommon_t *bwp_Common = mac->DLbwp[bwp_id - 1]->bwp_Common;
NR_BWP_DownlinkCommon_t *initialDownlinkBWP = scc->downlinkConfigCommon->initialDownlinkBWP;
NR_SearchSpace_t *ss = mac->SSpace[bwp_id - 1][coreset_id - 1][ss_id];
// CORESET configuration
NR_ControlResourceSet_t *coreset = mac->coreset[bwp_id - 1][coreset_id - 1];
rel15->coreset.duration = coreset->duration;
for (int i = 0; i < 6; i++)
rel15->coreset.frequency_domain_resource[i] = coreset->frequencyDomainResources.buf[i];
rel15->coreset.CceRegMappingType = coreset->cce_REG_MappingType.present == NR_ControlResourceSet__cce_REG_MappingType_PR_interleaved ? FAPI_NR_CCE_REG_MAPPING_TYPE_INTERLEAVED : FAPI_NR_CCE_REG_MAPPING_TYPE_NON_INTERLEAVED;
if (rel15->coreset.CceRegMappingType == FAPI_NR_CCE_REG_MAPPING_TYPE_INTERLEAVED) {
struct NR_ControlResourceSet__cce_REG_MappingType__interleaved *interleaved = coreset->cce_REG_MappingType.choice.interleaved;
rel15->coreset.RegBundleSize = (interleaved->reg_BundleSize == NR_ControlResourceSet__cce_REG_MappingType__interleaved__reg_BundleSize_n6) ? 6 : (2 + interleaved->reg_BundleSize);
rel15->coreset.InterleaverSize = (interleaved->interleaverSize == NR_ControlResourceSet__cce_REG_MappingType__interleaved__interleaverSize_n6) ? 6 : (2 + interleaved->interleaverSize);
AssertFatal(scc->physCellId != NULL, "mac->scc->physCellId is null\n");
rel15->coreset.ShiftIndex = interleaved->shiftIndex != NULL ? *interleaved->shiftIndex : *scc->physCellId;
} else {
rel15->coreset.RegBundleSize = 0;
rel15->coreset.InterleaverSize = 0;
rel15->coreset.ShiftIndex = 0;
}
rel15->coreset.CoreSetType = 1;
rel15->coreset.precoder_granularity = coreset->precoderGranularity;
// Scrambling RNTI
if (coreset->pdcch_DMRS_ScramblingID) {
rel15->coreset.pdcch_dmrs_scrambling_id = *coreset->pdcch_DMRS_ScramblingID;
rel15->coreset.scrambling_rnti = mac->t_crnti;
} else {
rel15->coreset.pdcch_dmrs_scrambling_id = *scc->physCellId;
rel15->coreset.scrambling_rnti = 0;
}
#ifdef DEBUG_DCI
LOG_D(MAC, "[DCI_CONFIG] Configure DCI PDU: ss_id %d bwp %p bwp_Id %d controlResourceSetId %d\n", ss_id, mac->DLbwp[bwp_id - 1], mac->DLbwp[bwp_id - 1]->bwp_Id, coreset->controlResourceSetId);
#endif
// loop over RNTI type and configure resource allocation for DCI
switch(rnti_type) {
case NR_RNTI_C:
// we use DL BWP dedicated
sps = bwp_Common->genericParameters.cyclicPrefix == NULL ? 14 : 12;
// for SPS=14 8 MSBs in positions 13 down to 6
monitoringSymbolsWithinSlot = (ss->monitoringSymbolsWithinSlot->buf[0]<<(sps-8)) | (ss->monitoringSymbolsWithinSlot->buf[1]>>(16-sps));
rel15->rnti = mac->crnti;
rel15->BWPSize = NRRIV2BW(bwp_Common->genericParameters.locationAndBandwidth, 275);
rel15->BWPStart = NRRIV2PRBOFFSET(bwp_Common->genericParameters.locationAndBandwidth, 275);
rel15->SubcarrierSpacing = bwp_Common->genericParameters.subcarrierSpacing;
for (int i = 0; i < rel15->num_dci_options; i++) {
rel15->dci_length_options[i] = nr_dci_size(scc, mac->scg, def_dci_pdu_rel15+i, rel15->dci_format_options[i], NR_RNTI_C, rel15->BWPSize, bwp_id);
}
break;
case NR_RNTI_RA:
// we use the initial DL BWP
sps = initialDownlinkBWP->genericParameters.cyclicPrefix == NULL ? 14 : 12;
monitoringSymbolsWithinSlot = (ss->monitoringSymbolsWithinSlot->buf[0]<<(sps-8)) | (ss->monitoringSymbolsWithinSlot->buf[1]>>(16-sps));
rel15->rnti = mac->ra_rnti;
rel15->BWPSize = NRRIV2BW(initialDownlinkBWP->genericParameters.locationAndBandwidth, 275);
rel15->BWPStart = NRRIV2PRBOFFSET(bwp_Common->genericParameters.locationAndBandwidth, 275); //NRRIV2PRBOFFSET(initialDownlinkBWP->genericParameters.locationAndBandwidth, 275);
rel15->SubcarrierSpacing = initialDownlinkBWP->genericParameters.subcarrierSpacing;
rel15->dci_length_options[0] = nr_dci_size(scc, mac->scg, def_dci_pdu_rel15, rel15->dci_format_options[0], NR_RNTI_RA, rel15->BWPSize, bwp_id);
break;
case NR_RNTI_P:
break;
case NR_RNTI_CS:
break;
case NR_RNTI_TC:
break;
case NR_RNTI_SP_CSI:
break;
case NR_RNTI_SI:
break;
case NR_RNTI_SFI:
break;
case NR_RNTI_INT:
break;
case NR_RNTI_TPC_PUSCH:
break;
case NR_RNTI_TPC_PUCCH:
break;
case NR_RNTI_TPC_SRS:
break;
default:
break;
}
for (int i = 0; i < sps; i++) {
if ((monitoringSymbolsWithinSlot >> (sps - 1 - i)) & 1) {
rel15->coreset.StartSymbolIndex = i;
break;
}
}
#ifdef DEBUG_DCI
LOG_D(MAC, "[DCI_CONFIG] Configure DCI PDU: rnti_type %d BWPSize %d BWPStart %d rel15->SubcarrierSpacing %d rel15->dci_format %d rel15->dci_length %d sps %d monitoringSymbolsWithinSlot %d \n",
rnti_type,
rel15->BWPSize,
rel15->BWPStart,
rel15->SubcarrierSpacing,
rel15->dci_format,
rel15->dci_length,
sps,
monitoringSymbolsWithinSlot);
#endif
// add DCI
dl_config->dl_config_list[dl_config->number_pdus].pdu_type = FAPI_NR_DL_CONFIG_TYPE_DCI;
dl_config->number_pdus += 1;
}
void ue_dci_configuration(NR_UE_MAC_INST_t *mac, fapi_nr_dl_config_request_t *dl_config, frame_t frame, int slot) {
int ss_id;
uint8_t bwp_id = 1, coreset_id = 1;
//NR_ServingCellConfig_t *scd = mac->scg->spCellConfig->spCellConfigDedicated;
NR_BWP_Downlink_t *bwp = mac->DLbwp[bwp_id - 1];
#ifdef DEBUG_DCI
LOG_D(MAC, "[DCI_CONFIG] ra_rnti %p (%x) crnti %p (%x) t_crnti %p (%x)\n", &mac->ra_rnti, mac->ra_rnti, &mac->crnti, mac->crnti, &mac->t_crnti, mac->t_crnti);
#endif
// loop over all available SS for BWP ID 1, CORESET ID 1
for (ss_id = 0; ss_id < FAPI_NR_MAX_SS_PER_CORESET && mac->SSpace[bwp_id - 1][coreset_id - 1][ss_id] != NULL; ss_id++){
NR_SearchSpace_t *ss = mac->SSpace[bwp_id - 1][coreset_id - 1][ss_id];
fapi_nr_dl_config_dci_dl_pdu_rel15_t *rel15 = &dl_config->dl_config_list[dl_config->number_pdus].dci_config_pdu.dci_config_rel15;
NR_BWP_DownlinkCommon_t *bwp_Common = bwp->bwp_Common;
NR_SetupRelease_PDCCH_ConfigCommon_t *pdcch_ConfigCommon = bwp_Common->pdcch_ConfigCommon;
struct NR_PhysicalCellGroupConfig *phy_cgc = mac->scg->physicalCellGroupConfig;
switch (ss->searchSpaceType->present){
case NR_SearchSpace__searchSpaceType_PR_common:
// this is for CSSs, we use BWP common and pdcch_ConfigCommon
// Fetch configuration for searchSpaceZero
// note: The search space with the SearchSpaceId = 0 identifies the search space configured via PBCH (MIB) and in ServingCellConfigCommon (searchSpaceZero).
if (pdcch_ConfigCommon->choice.setup->searchSpaceZero){
LOG_D(MAC, "[DCI_CONFIG] Configure SearchSpace#0 of the initial BWP\n");
LOG_W(MAC, "[DCI_CONFIG] This should not be available yet...");
}
if (ss->searchSpaceType->choice.common->dci_Format0_0_AndFormat1_0){
// check available SS IDs
if (pdcch_ConfigCommon->choice.setup->ra_SearchSpace){
if (ss->searchSpaceId == *pdcch_ConfigCommon->choice.setup->ra_SearchSpace){
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in Type1-PDCCH common random access search space\n");
switch(mac->ra_state){
case WAIT_RAR:
rel15->num_dci_options = 1;
rel15->dci_format_options[0] = NR_DL_DCI_FORMAT_1_0;
config_dci_pdu(mac, rel15, dl_config, NR_RNTI_RA, ss_id);
fill_dci_search_candidates(ss, rel15);
break;
case WAIT_CONTENTION_RESOLUTION:
rel15->rnti = mac->t_crnti;
break;
default:
break;
}
}
}
if (pdcch_ConfigCommon->choice.setup->searchSpaceSIB1){
if (ss->searchSpaceId == *pdcch_ConfigCommon->choice.setup->searchSpaceSIB1){
// Configure monitoring of PDCCH candidates in Type0-PDCCH common search space on the MCG
LOG_W(MAC, "[DCI_CONFIG] This seach space should not be configured yet...");
}
}
if (pdcch_ConfigCommon->choice.setup->searchSpaceOtherSystemInformation){
if (ss->searchSpaceId == *pdcch_ConfigCommon->choice.setup->searchSpaceOtherSystemInformation){
// Configure monitoring of PDCCH candidates in Type0-PDCCH common search space on the MCG
LOG_W(MAC, "[DCI_CONFIG] This seach space should not be configured yet...");
}
}
if (pdcch_ConfigCommon->choice.setup->pagingSearchSpace){
if (ss->searchSpaceId == *pdcch_ConfigCommon->choice.setup->pagingSearchSpace){
// Configure monitoring of PDCCH candidates in Type2-PDCCH common search space on the MCG
LOG_W(MAC, "[DCI_CONFIG] This seach space should not be configured yet...");
}
}
if (phy_cgc){
if (phy_cgc->cs_RNTI){
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in Type3-PDCCH common search space for dci_Format0_0_AndFormat1_0 with CRC scrambled by CS-RNTI...\n");
LOG_W(MAC, "[DCI_CONFIG] This RNTI should not be configured yet...");
}
if (phy_cgc->ext1){
if (phy_cgc->ext1->mcs_C_RNTI){
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in user specific search space for dci_Format0_0_AndFormat1_0 with CRC scrambled by MCS-C-RNTI...\n");
LOG_W(MAC, "[DCI_CONFIG] This RNTI should not be configured yet...");
}
}
}
} // end DCI 00 and 01
// DCI 2_0
if (ss->searchSpaceType->choice.common->dci_Format2_0){
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in Type3-PDCCH common search space for DCI format 2_0 with CRC scrambled by SFI-RNTI \n");
LOG_W(MAC, "[DCI_CONFIG] This format should not be configured yet...");
}
// DCI 2_1
if (ss->searchSpaceType->choice.common->dci_Format2_1){
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in Type3-PDCCH common search space for DCI format 2_1 with CRC scrambled by INT-RNTI \n");
LOG_W(MAC, "[DCI_CONFIG] This format should not be configured yet...");
}
// DCI 2_2
if (ss->searchSpaceType->choice.common->dci_Format2_2){
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in Type3-PDCCH common search space for DCI format 2_2 with CRC scrambled by TPC-RNTI \n");
LOG_W(MAC, "[DCI_CONFIG] This format should not be configured yet...");
}
// DCI 2_3
if (ss->searchSpaceType->choice.common->dci_Format2_3){
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in Type3-PDCCH common search space for DCI format 2_3 with CRC scrambled by TPC-SRS-RNTI \n");
LOG_W(MAC, "[DCI_CONFIG] This format should not be configured yet...");
}
break;
case NR_SearchSpace__searchSpaceType_PR_ue_Specific:
// this is an USS
if (ss->searchSpaceType->choice.ue_Specific){
if(ss->searchSpaceType->choice.ue_Specific->dci_Formats == NR_SearchSpace__searchSpaceType__ue_Specific__dci_Formats_formats0_1_And_1_1){
// Monitors DCI 01 and 11 scrambled with C-RNTI, or CS-RNTI(s), or SP-CSI-RNTI
if ((mac->ra_state == RA_SUCCEEDED || get_softmodem_params()->phy_test) && mac->crnti > 0) {
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in the user specific search space\n");
rel15->num_dci_options = 2;
rel15->dci_format_options[0] = NR_DL_DCI_FORMAT_1_1;
rel15->dci_format_options[1] = NR_UL_DCI_FORMAT_0_1;
config_dci_pdu(mac, rel15, dl_config, NR_RNTI_C, ss_id);
fill_dci_search_candidates(ss, rel15);
#ifdef DEBUG_DCI
LOG_D(MAC, "[DCI_CONFIG] ss %d ue_Specific %p searchSpaceType->present %d dci_Formats %d\n",
ss_id,
ss->searchSpaceType->choice.ue_Specific,
ss->searchSpaceType->present,
ss->searchSpaceType->choice.ue_Specific->dci_Formats);
#endif
}
if (phy_cgc){
if (phy_cgc->cs_RNTI){
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in user specific search space for dci_Format0_0_AndFormat1_0 with CRC scrambled by CS-RNTI...\n");
LOG_W(MAC, "[DCI_CONFIG] This RNTI should not be configured yet...");
}
if (phy_cgc->sp_CSI_RNTI){
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in user specific search space for dci_Format0_0_AndFormat1_0 with CRC scrambled by SP-CSI-RNTI...\n");
LOG_W(MAC, "[DCI_CONFIG] This RNTI should not be configured yet...");
}
if (phy_cgc->ext1){
if (phy_cgc->ext1->mcs_C_RNTI){
LOG_D(MAC, "[DCI_CONFIG] Configure monitoring of PDCCH candidates in user specific search space for dci_Format0_0_AndFormat1_0 with CRC scrambled by MCS-C-RNTI...\n");
LOG_W(MAC, "[DCI_CONFIG] This RNTI should not be configured yet...");
}
}
}
}
}
break;
default:
AssertFatal(1 == 0, "[DCI_CONFIG] Unrecognized search space type...");
break;
}
}
}
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