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openairinterface5g/openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c
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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 ue_procedures.c
* \brief procedures related to UE
* \author R. Knopp, K.H. HSU, G. Casati
* \date 2018
* \version 0.1
* \company Eurecom / NTUST
* \email: knopp@eurecom.fr, kai-hsiang.hsu@eurecom.fr, guido.casati@iis.fraunhofer.de
* \note
* \warning
*/
#include <stdio.h>
#include <math.h>
/* exe */
#include "executables/nr-softmodem.h"
/* RRC*/
#include "RRC/NR_UE/rrc_proto.h"
#include "NR_RACH-ConfigCommon.h"
#include "NR_RACH-ConfigGeneric.h"
#include "NR_FrequencyInfoDL.h"
#include "NR_PDCCH-ConfigCommon.h"
/* MAC */
#include "mac_defs.h"
#include "NR_MAC_COMMON/nr_mac.h"
#include "NR_MAC_UE/mac_proto.h"
#include "NR_MAC_UE/mac_extern.h"
#include "common/utils/nr/nr_common.h"
/* PHY */
#include "SCHED_NR_UE/defs.h"
#include "PHY/defs_nr_UE.h"
#include "PHY/NR_TRANSPORT/nr_dci.h"
/*Openair Packet Tracer */
#include "UTIL/OPT/opt.h"
#include "OCG.h"
#include "executables/softmodem-common.h"
/* utils */
#include "assertions.h"
/* Tools */
#include "asn1_conversions.h"
#include "SIMULATION/TOOLS/sim.h" // for taus
#include "common/utils/LOG/log.h"
#include "SIMULATION/TOOLS/sim.h" // for taus
#include "openair2/LAYER2/NR_MAC_COMMON/nr_mac.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
#include <stdio.h>
#include <math.h>
static prach_association_pattern_t prach_assoc_pattern;
static ssb_list_info_t ssb_list;
//#define ENABLE_MAC_PAYLOAD_DEBUG 1
//#define DEBUG_EXTRACT_DCI
// Build the list of all the valid RACH occasions in the maximum association pattern period according to the PRACH config
static void build_ro_list(NR_ServingCellConfigCommon_t *scc, uint8_t unpaired) {
int x,y; // PRACH Configuration Index table variables used to compute the valid frame numbers
int y2; // PRACH Configuration Index table additional variable used to compute the valid frame numbers
uint8_t slot_shift_for_map;
uint8_t map_shift;
boolean_t even_slot_invalid;
int64_t s_map;
uint8_t prach_conf_start_symbol; // Starting symbol of the PRACH occasions in the PRACH slot
uint8_t N_t_slot; // Number of PRACH occasions in a 14-symbols PRACH slot
uint8_t N_dur; // Duration of a PRACH occasion (nb of symbols)
uint8_t frame; // Maximum is NB_FRAMES_IN_MAX_ASSOCIATION_PATTERN_PERIOD
uint8_t slot; // Maximum is the number of slots in a frame @ SCS 240kHz
uint16_t format = 0xffff;
uint8_t format2 = 0xff;
int nb_fdm;
uint8_t config_index, mu;
uint32_t pointa;
int msg1_FDM;
uint8_t prach_conf_period_idx;
uint8_t nb_of_frames_per_prach_conf_period;
uint8_t prach_conf_period_frame_idx;
int64_t *prach_config_info_p;
NR_RACH_ConfigCommon_t *setup = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup;
NR_FrequencyInfoDL_t *frequencyInfoDL = scc->downlinkConfigCommon->frequencyInfoDL;
NR_RACH_ConfigGeneric_t *rach_ConfigGeneric = &setup->rach_ConfigGeneric;
config_index = rach_ConfigGeneric->prach_ConfigurationIndex;
if (setup->msg1_SubcarrierSpacing)
mu = *setup->msg1_SubcarrierSpacing;
else
mu = frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing;
pointa = frequencyInfoDL->absoluteFrequencyPointA;
msg1_FDM = rach_ConfigGeneric->msg1_FDM;
switch (msg1_FDM){
case 0:
case 1:
case 2:
case 3:
nb_fdm = 1 << msg1_FDM;
break;
default:
AssertFatal(1 == 0, "Unknown msg1_FDM from rach_ConfigGeneric %d\n", msg1_FDM);
}
// Create the PRACH occasions map
// ==============================
// WIP: For now assume no rejected PRACH occasions because of conflict with SSB or TDD_UL_DL_ConfigurationCommon schedule
// Identify the proper PRACH Configuration Index table according to the operating frequency
LOG_D(MAC,"Pointa %u, mu = %u, PRACH config index = %u, unpaired = %u\n", pointa, mu, config_index, unpaired);
prach_config_info_p = get_prach_config_info(pointa, config_index, unpaired);
if (pointa > 2016666) { //FR2
x = prach_config_info_p[2];
y = prach_config_info_p[3];
y2 = prach_config_info_p[4];
s_map = prach_config_info_p[5];
prach_conf_start_symbol = prach_config_info_p[6];
N_t_slot = prach_config_info_p[8];
N_dur = prach_config_info_p[9];
if (prach_config_info_p[1] != -1)
format2 = (uint8_t) prach_config_info_p[1];
format = ((uint8_t) prach_config_info_p[0]) | (format2<<8);
slot_shift_for_map = mu-2;
if ( (mu == 3) && (prach_config_info_p[7] == 1) )
even_slot_invalid = true;
else
even_slot_invalid = false;
}
else { // FR1
x = prach_config_info_p[2];
y = prach_config_info_p[3];
y2 = y;
s_map = prach_config_info_p[4];
prach_conf_start_symbol = prach_config_info_p[5];
N_t_slot = prach_config_info_p[7];
N_dur = prach_config_info_p[8];
if (prach_config_info_p[1] != -1)
format2 = (uint8_t) prach_config_info_p[1];
format = ((uint8_t) prach_config_info_p[0]) | (format2<<8);
slot_shift_for_map = mu;
if ( (mu == 1) && (prach_config_info_p[6] <= 1) )
// no prach in even slots @ 30kHz for 1 prach per subframe
even_slot_invalid = true;
else
even_slot_invalid = false;
} // FR2 / FR1
prach_assoc_pattern.nb_of_prach_conf_period_in_max_period = MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD / x;
nb_of_frames_per_prach_conf_period = x;
LOG_D(MAC,"nb_of_prach_conf_period_in_max_period %d\n", prach_assoc_pattern.nb_of_prach_conf_period_in_max_period);
// Fill in the PRACH occasions table for every slot in every frame in every PRACH configuration periods in the maximum association pattern period
// ----------------------------------------------------------------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------------------------------------------------------------
// For every PRACH configuration periods
// -------------------------------------
for (prach_conf_period_idx=0; prach_conf_period_idx<prach_assoc_pattern.nb_of_prach_conf_period_in_max_period; prach_conf_period_idx++) {
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_prach_occasion = 0;
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_frame = nb_of_frames_per_prach_conf_period;
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_slot = nr_slots_per_frame[mu];
LOG_D(MAC,"PRACH Conf Period Idx %d\n", prach_conf_period_idx);
// For every frames in a PRACH configuration period
// ------------------------------------------------
for (prach_conf_period_frame_idx=0; prach_conf_period_frame_idx<nb_of_frames_per_prach_conf_period; prach_conf_period_frame_idx++) {
frame = (prach_conf_period_idx * nb_of_frames_per_prach_conf_period) + prach_conf_period_frame_idx;
LOG_D(MAC,"PRACH Conf Period Frame Idx %d - Frame %d\n", prach_conf_period_frame_idx, frame);
// Is it a valid frame for this PRACH configuration index? (n_sfn mod x = y)
if ( (frame%x)==y || (frame%x)==y2 ) {
// For every slot in a frame
// -------------------------
for (slot=0; slot<nr_slots_per_frame[mu]; slot++) {
// Is it a valid slot?
map_shift = slot >> slot_shift_for_map; // in PRACH configuration index table slots are numbered wrt 60kHz
if ( (s_map>>map_shift)&0x01 ) {
// Valid slot
// Additionally, for 30kHz/120kHz, we must check for the n_RA_Slot param also
if ( even_slot_invalid && (slot%2 == 0) )
continue; // no prach in even slots @ 30kHz/120kHz for 1 prach per 60khz slot/subframe
// We're good: valid frame and valid slot
// Compute all the PRACH occasions in the slot
uint8_t n_prach_occ_in_time;
uint8_t n_prach_occ_in_freq;
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_time = N_t_slot;
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_freq = nb_fdm;
for (n_prach_occ_in_time=0; n_prach_occ_in_time<N_t_slot; n_prach_occ_in_time++) {
uint8_t start_symbol = prach_conf_start_symbol + n_prach_occ_in_time * N_dur;
LOG_D(MAC,"PRACH Occ in time %d\n", n_prach_occ_in_time);
for (n_prach_occ_in_freq=0; n_prach_occ_in_freq<nb_fdm; n_prach_occ_in_freq++) {
prach_occasion_info_t *prach_occasion_p = &prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].prach_occasion[n_prach_occ_in_time][n_prach_occ_in_freq];
prach_occasion_p->start_symbol = start_symbol;
prach_occasion_p->fdm = n_prach_occ_in_freq;
prach_occasion_p->frame = frame;
prach_occasion_p->slot = slot;
prach_occasion_p->format = format;
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_prach_occasion++;
LOG_D(MAC,"Adding a PRACH occasion: frame %u, slot-symbol %d-%d, occ_in_time-occ_in-freq %d-%d, nb ROs in conf period %d, for this slot: RO# in time %d, RO# in freq %d\n",
frame, slot, start_symbol, n_prach_occ_in_time, n_prach_occ_in_freq, prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_prach_occasion,
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_time,
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_freq);
} // For every freq in the slot
} // For every time occasions in the slot
} // Valid slot?
} // For every slots in a frame
} // Valid frame?
} // For every frames in a prach configuration period
} // For every prach configuration periods in the maximum association pattern period (160ms)
}
// Build the list of all the valid/transmitted SSBs according to the config
static void build_ssb_list(NR_ServingCellConfigCommon_t *scc) {
// Create the list of transmitted SSBs
// ===================================
BIT_STRING_t *ssb_bitmap;
uint64_t ssb_positionsInBurst;
uint8_t ssb_idx = 0;
switch (scc->ssb_PositionsInBurst->present) {
case NR_ServingCellConfigCommon__ssb_PositionsInBurst_PR_shortBitmap:
ssb_bitmap = &scc->ssb_PositionsInBurst->choice.shortBitmap;
ssb_positionsInBurst = BIT_STRING_to_uint8(ssb_bitmap);
LOG_D(MAC,"SSB config: SSB_positions_in_burst 0x%lx\n", ssb_positionsInBurst);
for (uint8_t bit_nb=3; bit_nb<=3; bit_nb--) {
// If SSB is transmitted
if ((ssb_positionsInBurst>>bit_nb) & 0x01) {
ssb_list.nb_tx_ssb++;
ssb_list.tx_ssb[ssb_idx].transmitted = true;
LOG_D(MAC,"SSB idx %d transmitted\n", ssb_idx);
}
ssb_idx++;
}
break;
case NR_ServingCellConfigCommon__ssb_PositionsInBurst_PR_mediumBitmap:
ssb_bitmap = &scc->ssb_PositionsInBurst->choice.mediumBitmap;
ssb_positionsInBurst = BIT_STRING_to_uint8(ssb_bitmap);
LOG_D(MAC,"SSB config: SSB_positions_in_burst 0x%lx\n", ssb_positionsInBurst);
for (uint8_t bit_nb=7; bit_nb<=7; bit_nb--) {
// If SSB is transmitted
if ((ssb_positionsInBurst>>bit_nb) & 0x01) {
ssb_list.nb_tx_ssb++;
ssb_list.tx_ssb[ssb_idx].transmitted = true;
LOG_D(MAC,"SSB idx %d transmitted\n", ssb_idx);
}
ssb_idx++;
}
break;
case NR_ServingCellConfigCommon__ssb_PositionsInBurst_PR_longBitmap:
ssb_bitmap = &scc->ssb_PositionsInBurst->choice.longBitmap;
ssb_positionsInBurst = BIT_STRING_to_uint64(ssb_bitmap);
LOG_D(MAC,"SSB config: SSB_positions_in_burst 0x%lx\n", ssb_positionsInBurst);
for (uint8_t bit_nb=63; bit_nb<=63; bit_nb--) {
// If SSB is transmitted
if ((ssb_positionsInBurst>>bit_nb) & 0x01) {
ssb_list.nb_tx_ssb++;
ssb_list.tx_ssb[ssb_idx].transmitted = true;
LOG_D(MAC,"SSB idx %d transmitted\n", ssb_idx);
}
ssb_idx++;
}
break;
default:
AssertFatal(false,"ssb_PositionsInBurst not present\n");
break;
}
}
// Map the transmitted SSBs to the ROs and create the association pattern according to the config
static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) {
// Map SSBs to PRACH occasions
// ===========================
// WIP: Assumption: No PRACH occasion is rejected because of a conflict with SSBs or TDD_UL_DL_ConfigurationCommon schedule
NR_RACH_ConfigCommon_t *setup = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup;
NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR ssb_perRACH_config = setup->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->present;
boolean_t multiple_ssb_per_ro; // true if more than one or exactly one SSB per RACH occasion, false if more than one RO per SSB
uint8_t ssb_rach_ratio; // Nb of SSBs per RACH or RACHs per SSB
uint16_t required_nb_of_prach_occasion; // Nb of RACH occasions required to map all the SSBs
uint8_t required_nb_of_prach_conf_period; // Nb of PRACH configuration periods required to map all the SSBs
// Determine the SSB to RACH mapping ratio
// =======================================
switch (ssb_perRACH_config){
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneEighth:
multiple_ssb_per_ro = false;
ssb_rach_ratio = 8;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneFourth:
multiple_ssb_per_ro = false;
ssb_rach_ratio = 4;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneHalf:
multiple_ssb_per_ro = false;
ssb_rach_ratio = 2;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_one:
multiple_ssb_per_ro = true;
ssb_rach_ratio = 1;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_two:
multiple_ssb_per_ro = true;
ssb_rach_ratio = 2;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_four:
multiple_ssb_per_ro = true;
ssb_rach_ratio = 4;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_eight:
multiple_ssb_per_ro = true;
ssb_rach_ratio = 8;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_sixteen:
multiple_ssb_per_ro = true;
ssb_rach_ratio = 16;
break;
default:
AssertFatal(1 == 0, "Unsupported ssb_perRACH_config %d\n", ssb_perRACH_config);
break;
}
LOG_D(MAC,"SSB rach ratio %d, Multiple SSB per RO %d\n", ssb_rach_ratio, multiple_ssb_per_ro);
// Evaluate the number of PRACH configuration periods required to map all the SSBs and set the association period
// ==============================================================================================================
// WIP: Assumption for now is that all the PRACH configuration periods within a maximum association pattern period have the same number of PRACH occasions
// (No PRACH occasions are conflicting with SSBs nor TDD_UL_DL_ConfigurationCommon schedule)
// There is only one possible association period which can contain up to 16 PRACH configuration periods
LOG_D(MAC,"Evaluate the number of PRACH configuration periods required to map all the SSBs and set the association period\n");
if (true == multiple_ssb_per_ro) {
required_nb_of_prach_occasion = ((ssb_list.nb_tx_ssb-1) + ssb_rach_ratio) / ssb_rach_ratio;
}
else {
required_nb_of_prach_occasion = ssb_list.nb_tx_ssb * ssb_rach_ratio;
}
required_nb_of_prach_conf_period = ((required_nb_of_prach_occasion-1) + prach_assoc_pattern.prach_conf_period_list[0].nb_of_prach_occasion) / prach_assoc_pattern.prach_conf_period_list[0].nb_of_prach_occasion;
if (required_nb_of_prach_conf_period == 1) {
prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 1;
}
else if (required_nb_of_prach_conf_period == 2) {
prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 2;
}
else if (required_nb_of_prach_conf_period <= 4) {
prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 4;
}
else if (required_nb_of_prach_conf_period <= 8) {
prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 8;
}
else if (required_nb_of_prach_conf_period <= 16) {
prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 16;
}
else {
AssertFatal(1 == 0, "Invalid number of PRACH config periods within an association period %d\n", required_nb_of_prach_conf_period);
}
prach_assoc_pattern.nb_of_assoc_period = 1; // WIP: only one possible association period
prach_assoc_pattern.prach_association_period_list[0].nb_of_frame = prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period * prach_assoc_pattern.prach_conf_period_list[0].nb_of_frame;
prach_assoc_pattern.nb_of_frame = prach_assoc_pattern.prach_association_period_list[0].nb_of_frame;
LOG_D(MAC,"Assoc period %d, Nb of frames in assoc period %d\n",
prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period,
prach_assoc_pattern.prach_association_period_list[0].nb_of_frame);
// Proceed to the SSB to RO mapping
// ================================
uint8_t association_period_idx; // Association period index within the association pattern
uint8_t ssb_idx = 0;
uint8_t prach_configuration_period_idx; // PRACH Configuration period index within the association pattern
prach_conf_period_t *prach_conf_period_p;
// Map all the association periods within the association pattern period
LOG_D(MAC,"Proceed to the SSB to RO mapping\n");
for (association_period_idx=0; association_period_idx<prach_assoc_pattern.nb_of_assoc_period; association_period_idx++) {
uint8_t n_prach_conf=0; // PRACH Configuration period index within the association period
uint8_t frame=0;
uint8_t slot=0;
uint8_t ro_in_time=0;
uint8_t ro_in_freq=0;
// Set the starting PRACH Configuration period index in the association_pattern map for this particular association period
prach_configuration_period_idx = 0; // WIP: only one possible association period so the starting PRACH configuration period is automatically 0
// Check if we need to map multiple SSBs per RO or multiple ROs per SSB
if (true == multiple_ssb_per_ro) {
// --------------------
// --------------------
// Multiple SSBs per RO
// --------------------
// --------------------
// WIP: For the moment, only map each SSB idx once per association period if configuration is multiple SSBs per RO
// this is true if no PRACH occasions are conflicting with SSBs nor TDD_UL_DL_ConfigurationCommon schedule
ssb_idx = 0;
// Go through the list of PRACH config periods within this association period
for (n_prach_conf=0; n_prach_conf<prach_assoc_pattern.prach_association_period_list[association_period_idx].nb_of_prach_conf_period; n_prach_conf++, prach_configuration_period_idx++) {
// Build the association period with its association PRACH Configuration indexes
prach_conf_period_p = &prach_assoc_pattern.prach_conf_period_list[prach_configuration_period_idx];
prach_assoc_pattern.prach_association_period_list[association_period_idx].prach_conf_period_list[n_prach_conf] = prach_conf_period_p;
// Go through all the ROs within the PRACH config period
for (frame=0; frame<prach_conf_period_p->nb_of_frame; frame++) {
for (slot=0; slot<prach_conf_period_p->nb_of_slot; slot++) {
for (ro_in_time=0; ro_in_time<prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_time; ro_in_time++) {
for (ro_in_freq=0; ro_in_freq<prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq; ro_in_freq++) {
prach_occasion_info_t *ro_p = &prach_conf_period_p->prach_occasion_slot_map[frame][slot].prach_occasion[ro_in_time][ro_in_freq];
// Go through the list of transmitted SSBs and map the required amount of SSBs to this RO
// WIP: For the moment, only map each SSB idx once per association period if configuration is multiple SSBs per RO
// this is true if no PRACH occasions are conflicting with SSBs nor TDD_UL_DL_ConfigurationCommon schedule
for (; ssb_idx<MAX_NB_SSB; ssb_idx++) {
// Map only the transmitted ssb_idx
if (true == ssb_list.tx_ssb[ssb_idx].transmitted) {
ro_p->mapped_ssb_idx[ro_p->nb_mapped_ssb] = ssb_idx;
ro_p->nb_mapped_ssb++;
ssb_list.tx_ssb[ssb_idx].mapped_ro[ssb_list.tx_ssb[ssb_idx].nb_mapped_ro] = ro_p;
ssb_list.tx_ssb[ssb_idx].nb_mapped_ro++;
AssertFatal(MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN > ssb_list.tx_ssb[ssb_idx].nb_mapped_ro,"Too many mapped ROs (%d) to a single SSB\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro);
LOG_D(MAC,"Mapped ssb_idx %u to RO slot-symbol %u-%u, %u-%u-%u/%u\n", ssb_idx, ro_p->slot, ro_p->start_symbol, slot, ro_in_time, ro_in_freq, prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq);
LOG_D(MAC,"Nb mapped ROs for this ssb idx: in the association period only %u\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro);
// If all the required SSBs are mapped to this RO, exit the loop of SSBs
if (ro_p->nb_mapped_ssb == ssb_rach_ratio) {
ssb_idx++;
break;
}
} // if ssb_idx is transmitted
} // for ssb_idx
// Exit the loop of ROs if there is no more SSB to map
if (MAX_NB_SSB == ssb_idx) break;
} // for ro_in_freq
// Exit the loop of ROs if there is no more SSB to map
if (MAX_NB_SSB == ssb_idx) break;
} // for ro_in_time
// Exit the loop of slots if there is no more SSB to map
if (MAX_NB_SSB == ssb_idx) break;
} // for slot
// Exit the loop frames if there is no more SSB to map
if (MAX_NB_SSB == ssb_idx) break;
} // for frame
// Exit the loop of PRACH configurations if there is no more SSB to map
if (MAX_NB_SSB == ssb_idx) break;
} // for n_prach_conf
// WIP: note that there is no re-mapping of the SSBs within the association period since there is no invalid ROs in the PRACH config periods that would create this situation
} // if multiple_ssbs_per_ro
else {
// --------------------
// --------------------
// Multiple ROs per SSB
// --------------------
// --------------------
n_prach_conf = 0;
// Go through the list of transmitted SSBs
for (ssb_idx=0; ssb_idx<MAX_NB_SSB; ssb_idx++) {
uint8_t nb_mapped_ro_in_association_period=0; // Reset the nb of mapped ROs for the new SSB index
// Map only the transmitted ssb_idx
if (true == ssb_list.tx_ssb[ssb_idx].transmitted) {
// Map all the required ROs to this SSB
// Go through the list of PRACH config periods within this association period
for (; n_prach_conf<prach_assoc_pattern.prach_association_period_list[association_period_idx].nb_of_prach_conf_period; n_prach_conf++, prach_configuration_period_idx++) {
// Build the association period with its association PRACH Configuration indexes
prach_conf_period_p = &prach_assoc_pattern.prach_conf_period_list[prach_configuration_period_idx];
prach_assoc_pattern.prach_association_period_list[association_period_idx].prach_conf_period_list[n_prach_conf] = prach_conf_period_p;
for (; frame<prach_conf_period_p->nb_of_frame; frame++) {
for (; slot<prach_conf_period_p->nb_of_slot; slot++) {
for (; ro_in_time<prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_time; ro_in_time++) {
for (; ro_in_freq<prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq; ro_in_freq++) {
prach_occasion_info_t *ro_p = &prach_conf_period_p->prach_occasion_slot_map[frame][slot].prach_occasion[ro_in_time][ro_in_freq];
ro_p->mapped_ssb_idx[0] = ssb_idx;
ro_p->nb_mapped_ssb = 1;
ssb_list.tx_ssb[ssb_idx].mapped_ro[ssb_list.tx_ssb[ssb_idx].nb_mapped_ro] = ro_p;
ssb_list.tx_ssb[ssb_idx].nb_mapped_ro++;
AssertFatal(MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN > ssb_list.tx_ssb[ssb_idx].nb_mapped_ro,"Too many mapped ROs (%d) to a single SSB\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro);
nb_mapped_ro_in_association_period++;
LOG_D(MAC,"Mapped ssb_idx %u to RO slot-symbol %u-%u, %u-%u-%u/%u\n", ssb_idx, ro_p->slot, ro_p->start_symbol, slot, ro_in_time, ro_in_freq, prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq);
LOG_D(MAC,"Nb mapped ROs for this ssb idx: in the association period only %u / total %u\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro, nb_mapped_ro_in_association_period);
// Exit the loop if this SSB has been mapped to all the required ROs
// WIP: Assuming that ssb_rach_ratio equals the maximum nb of times a given ssb_idx is mapped within an association period:
// this is true if no PRACH occasions are conflicting with SSBs nor TDD_UL_DL_ConfigurationCommon schedule
if (nb_mapped_ro_in_association_period == ssb_rach_ratio) {
ro_in_freq++;
break;
}
} // for ro_in_freq
// Exit the loop if this SSB has been mapped to all the required ROs
if (nb_mapped_ro_in_association_period == ssb_rach_ratio) {
break;
}
else ro_in_freq = 0; // else go to the next time symbol in that slot and reset the freq index
} // for ro_in_time
// Exit the loop if this SSB has been mapped to all the required ROs
if (nb_mapped_ro_in_association_period == ssb_rach_ratio) {
break;
}
else ro_in_time = 0; // else go to the next slot in that PRACH config period and reset the symbol index
} // for slot
// Exit the loop if this SSB has been mapped to all the required ROs
if (nb_mapped_ro_in_association_period == ssb_rach_ratio) {
break;
}
else slot = 0; // else go to the next frame in that PRACH config period and reset the slot index
} // for frame
// Exit the loop if this SSB has been mapped to all the required ROs
if (nb_mapped_ro_in_association_period == ssb_rach_ratio) {
break;
}
else frame = 0; // else go to the next PRACH config period in that association period and reset the frame index
} // for n_prach_conf
} // if ssb_idx is transmitted
} // for ssb_idx
} // else if multiple_ssbs_per_ro
} // for association_period_index
}
// Returns a RACH occasion if any matches the SSB idx, the frame and the slot
static int get_nr_prach_info_from_ssb_index(uint8_t ssb_idx,
int frame,
int slot,
prach_occasion_info_t **prach_occasion_info_pp) {
ssb_info_t *ssb_info_p;
prach_occasion_slot_t *prach_occasion_slot_p = NULL;
*prach_occasion_info_pp = NULL;
// Search for a matching RO slot in the SSB_to_RO map
// A valid RO slot will match:
// - ssb_idx mapped to one of the ROs in that RO slot
// - exact slot number
// - frame offset
ssb_info_p = &ssb_list.tx_ssb[ssb_idx];
for (uint8_t n_mapped_ro=0; n_mapped_ro<ssb_info_p->nb_mapped_ro; n_mapped_ro++) {
if ((slot == ssb_info_p->mapped_ro[n_mapped_ro]->slot) &&
(ssb_info_p->mapped_ro[n_mapped_ro]->frame == (frame % prach_assoc_pattern.nb_of_frame))) {
uint8_t prach_config_period_nb = ssb_info_p->mapped_ro[n_mapped_ro]->frame / prach_assoc_pattern.prach_conf_period_list[0].nb_of_frame;
uint8_t frame_nb_in_prach_config_period = ssb_info_p->mapped_ro[n_mapped_ro]->frame % prach_assoc_pattern.prach_conf_period_list[0].nb_of_frame;
prach_occasion_slot_p = &prach_assoc_pattern.prach_conf_period_list[prach_config_period_nb].prach_occasion_slot_map[frame_nb_in_prach_config_period][slot];
}
}
// If there is a matching RO slot in the SSB_to_RO map
if (NULL != prach_occasion_slot_p)
{
// A random RO mapped to the SSB index should be selected in the slot
// First count the number of times the SSB index is found in that RO
uint8_t nb_mapped_ssb = 0;
for (int ro_in_time=0; ro_in_time < prach_occasion_slot_p->nb_of_prach_occasion_in_time; ro_in_time++) {
for (int ro_in_freq=0; ro_in_freq < prach_occasion_slot_p->nb_of_prach_occasion_in_freq; ro_in_freq++) {
prach_occasion_info_t *prach_occasion_info_p = &prach_occasion_slot_p->prach_occasion[ro_in_time][ro_in_freq];
for (uint8_t ssb_nb=0; ssb_nb<prach_occasion_info_p->nb_mapped_ssb; ssb_nb++) {
if (prach_occasion_info_p->mapped_ssb_idx[ssb_nb] == ssb_idx) {
nb_mapped_ssb++;
}
}
}
}
// Choose a random SSB nb
uint8_t random_ssb_nb = 0;
random_ssb_nb = ((taus()) % nb_mapped_ssb);
// Select the RO according to the chosen random SSB nb
nb_mapped_ssb=0;
for (int ro_in_time=0; ro_in_time < prach_occasion_slot_p->nb_of_prach_occasion_in_time; ro_in_time++) {
for (int ro_in_freq=0; ro_in_freq < prach_occasion_slot_p->nb_of_prach_occasion_in_freq; ro_in_freq++) {
prach_occasion_info_t *prach_occasion_info_p = &prach_occasion_slot_p->prach_occasion[ro_in_time][ro_in_freq];
for (uint8_t ssb_nb=0; ssb_nb<prach_occasion_info_p->nb_mapped_ssb; ssb_nb++) {
if (prach_occasion_info_p->mapped_ssb_idx[ssb_nb] == ssb_idx) {
if (nb_mapped_ssb == random_ssb_nb) {
*prach_occasion_info_pp = prach_occasion_info_p;
return 1;
}
else {
nb_mapped_ssb++;
}
}
}
}
}
}
return 0;
}
// Build the SSB to RO mapping upon RRC configuration update
void build_ssb_to_ro_map(NR_ServingCellConfigCommon_t *scc, uint8_t unpaired){
// Clear all the lists and maps
memset(&prach_assoc_pattern, 0, sizeof(prach_association_pattern_t));
memset(&ssb_list, 0, sizeof(ssb_list_info_t));
// Build the list of all the valid RACH occasions in the maximum association pattern period according to the PRACH config
LOG_D(MAC,"Build RO list\n");
build_ro_list(scc, unpaired);
// Build the list of all the valid/transmitted SSBs according to the config
LOG_D(MAC,"Build SSB list\n");
build_ssb_list(scc);
// Map the transmitted SSBs to the ROs and create the association pattern according to the config
LOG_D(MAC,"Map SSB to RO\n");
map_ssb_to_ro(scc);
LOG_D(MAC,"Map SSB to RO done\n");
}
void fill_scheduled_response(nr_scheduled_response_t *scheduled_response,
fapi_nr_dl_config_request_t *dl_config,
fapi_nr_ul_config_request_t *ul_config,
fapi_nr_tx_request_t *tx_request,
module_id_t mod_id,
int cc_id,
frame_t frame,
int slot,
int thread_id){
scheduled_response->dl_config = dl_config;
scheduled_response->ul_config = ul_config;
scheduled_response->tx_request = tx_request;
scheduled_response->module_id = mod_id;
scheduled_response->CC_id = cc_id;
scheduled_response->frame = frame;
scheduled_response->slot = slot;
scheduled_response->thread_id = thread_id;
}
uint32_t get_ssb_slot(uint32_t ssb_index){
// this function now only support f <= 3GHz
return ssb_index & 0x3 ;
// return first_symbol(case, freq, ssb_index) / 14
}
int8_t nr_ue_decode_mib(module_id_t module_id,
int cc_id,
uint8_t gNB_index,
uint8_t extra_bits, // 8bits 38.212 c7.1.1
uint32_t ssb_length,
uint32_t ssb_index,
void *pduP,
uint16_t cell_id)
{
LOG_I(MAC,"[L2][MAC] decode mib\n");
NR_UE_MAC_INST_t *mac = get_mac_inst(module_id);
nr_mac_rrc_data_ind_ue( module_id, cc_id, gNB_index, NR_BCCH_BCH, (uint8_t *) pduP, 3 ); // fixed 3 bytes MIB PDU
AssertFatal(mac->mib != NULL, "nr_ue_decode_mib() mac->mib == NULL\n");
//if(mac->mib != NULL){
uint16_t frame = (mac->mib->systemFrameNumber.buf[0] >> mac->mib->systemFrameNumber.bits_unused);
uint16_t frame_number_4lsb = 0;
for (int i=0; i<4; i++)
frame_number_4lsb |= ((extra_bits>>i)&1)<<(3-i);
uint8_t half_frame_bit = ( extra_bits >> 4 ) & 0x1; // extra bits[4]
uint8_t ssb_subcarrier_offset_msb = ( extra_bits >> 5 ) & 0x1; // extra bits[5]
uint8_t ssb_subcarrier_offset = (uint8_t)mac->mib->ssb_SubcarrierOffset;
frame = frame << 4;
frame = frame | frame_number_4lsb;
if(ssb_length == 64){
for (int i=0; i<3; i++)
ssb_index += (((extra_bits>>(7-i))&0x01)<<(3+i));
}else{
if(ssb_subcarrier_offset_msb){
ssb_subcarrier_offset = ssb_subcarrier_offset | 0x10;
}
}
LOG_D(MAC,"system frame number(6 MSB bits): %d\n", mac->mib->systemFrameNumber.buf[0]);
LOG_D(MAC,"system frame number(with LSB): %d\n", (int)frame);
LOG_D(MAC,"subcarrier spacing (0=15or60, 1=30or120): %d\n", (int)mac->mib->subCarrierSpacingCommon);
LOG_D(MAC,"ssb carrier offset(with MSB): %d\n", (int)ssb_subcarrier_offset);
LOG_D(MAC,"dmrs type A position (0=pos2,1=pos3): %d\n", (int)mac->mib->dmrs_TypeA_Position);
LOG_D(MAC,"cell barred (0=barred,1=notBarred): %d\n", (int)mac->mib->cellBarred);
LOG_D(MAC,"intra frequency reselection (0=allowed,1=notAllowed): %d\n", (int)mac->mib->intraFreqReselection);
LOG_D(MAC,"half frame bit(extra bits): %d\n", (int)half_frame_bit);
LOG_D(MAC,"ssb index(extra bits): %d\n", (int)ssb_index);
subcarrier_spacing_t scs_ssb = scs_30kHz; // default for
//const uint32_t scs_index = 0;
const uint32_t num_slot_per_frame = 20;
subcarrier_spacing_t scs_pdcch;
// assume carrier frequency < 6GHz
if(mac->mib->subCarrierSpacingCommon == NR_MIB__subCarrierSpacingCommon_scs15or60){
scs_pdcch = scs_15kHz;
}else{ //NR_MIB__subCarrierSpacingCommon_scs30or120
scs_pdcch = scs_30kHz;
}
channel_bandwidth_t min_channel_bw = bw_10MHz; // deafult for testing
uint32_t is_condition_A = (ssb_subcarrier_offset == 0); // 38.213 ch.13
frequency_range_t frequency_range = FR1;
uint32_t index_4msb = (mac->mib->pdcch_ConfigSIB1.controlResourceSetZero);
uint32_t index_4lsb = (mac->mib->pdcch_ConfigSIB1.searchSpaceZero);
int32_t num_rbs = -1;
int32_t num_symbols = -1;
int32_t rb_offset = -1;
LOG_D(MAC,"<<<<<<<<<configSIB1: controlResourceSetZero %d searchSpaceZero %d scs_ssb %d scs_pdcch %d switch %d ",
index_4msb,index_4lsb,scs_ssb,scs_pdcch, (scs_ssb << 5)|scs_pdcch);
// type0-pdcch coreset
switch( (scs_ssb << 5)|scs_pdcch ){
case (scs_15kHz << 5) | scs_15kHz :
AssertFatal(index_4msb < 15, "38.213 Table 13-1 4 MSB out of range\n");
mac->type0_pdcch_ss_mux_pattern = 1;
num_rbs = table_38213_13_1_c2[index_4msb];
num_symbols = table_38213_13_1_c3[index_4msb];
rb_offset = table_38213_13_1_c4[index_4msb];
break;
case (scs_15kHz << 5) | scs_30kHz:
AssertFatal(index_4msb < 14, "38.213 Table 13-2 4 MSB out of range\n");
mac->type0_pdcch_ss_mux_pattern = 1;
num_rbs = table_38213_13_2_c2[index_4msb];
num_symbols = table_38213_13_2_c3[index_4msb];
rb_offset = table_38213_13_2_c4[index_4msb];
break;
case (scs_30kHz << 5) | scs_15kHz:
if((min_channel_bw & bw_5MHz) | (min_channel_bw & bw_10MHz)){
AssertFatal(index_4msb < 9, "38.213 Table 13-3 4 MSB out of range\n");
mac->type0_pdcch_ss_mux_pattern = 1;
num_rbs = table_38213_13_3_c2[index_4msb];
num_symbols = table_38213_13_3_c3[index_4msb];
rb_offset = table_38213_13_3_c4[index_4msb];
}else if(min_channel_bw & bw_40MHz){
AssertFatal(index_4msb < 9, "38.213 Table 13-5 4 MSB out of range\n");
mac->type0_pdcch_ss_mux_pattern = 1;
num_rbs = table_38213_13_5_c2[index_4msb];
num_symbols = table_38213_13_5_c3[index_4msb];
rb_offset = table_38213_13_5_c4[index_4msb];
}else{ ; }
break;
case (scs_30kHz << 5) | scs_30kHz:
if((min_channel_bw & bw_5MHz) | (min_channel_bw & bw_10MHz)){
mac->type0_pdcch_ss_mux_pattern = 1;
num_rbs = table_38213_13_4_c2[index_4msb];
num_symbols = table_38213_13_4_c3[index_4msb];
rb_offset = table_38213_13_4_c4[index_4msb];
LOG_D(MAC,"<<<<<<<<<index_4msb %d num_rbs %d num_symb %d rb_offset %d\n",index_4msb,num_rbs,num_symbols,rb_offset );
}else if(min_channel_bw & bw_40MHz){
AssertFatal(index_4msb < 10, "38.213 Table 13-6 4 MSB out of range\n");
mac->type0_pdcch_ss_mux_pattern = 1;
num_rbs = table_38213_13_6_c2[index_4msb];
num_symbols = table_38213_13_6_c3[index_4msb];
rb_offset = table_38213_13_6_c4[index_4msb];
}else{ ; }
break;
case (scs_120kHz << 5) | scs_60kHz:
AssertFatal(index_4msb < 12, "38.213 Table 13-7 4 MSB out of range\n");
if(index_4msb & 0x7){
mac->type0_pdcch_ss_mux_pattern = 1;
}else if(index_4msb & 0x18){
mac->type0_pdcch_ss_mux_pattern = 2;
}else{ ; }
num_rbs = table_38213_13_7_c2[index_4msb];
num_symbols = table_38213_13_7_c3[index_4msb];
if(!is_condition_A && (index_4msb == 8 || index_4msb == 10)){
rb_offset = table_38213_13_7_c4[index_4msb] - 1;
}else{
rb_offset = table_38213_13_7_c4[index_4msb];
}
break;
case (scs_120kHz << 5) | scs_120kHz:
AssertFatal(index_4msb < 8, "38.213 Table 13-8 4 MSB out of range\n");
if(index_4msb & 0x3){
mac->type0_pdcch_ss_mux_pattern = 1;
}else if(index_4msb & 0x0c){
mac->type0_pdcch_ss_mux_pattern = 3;
}
num_rbs = table_38213_13_8_c2[index_4msb];
num_symbols = table_38213_13_8_c3[index_4msb];
if(!is_condition_A && (index_4msb == 4 || index_4msb == 6)){
rb_offset = table_38213_13_8_c4[index_4msb] - 1;
}else{
rb_offset = table_38213_13_8_c4[index_4msb];
}
break;
case (scs_240kHz << 5) | scs_60kHz:
AssertFatal(index_4msb < 4, "38.213 Table 13-9 4 MSB out of range\n");
mac->type0_pdcch_ss_mux_pattern = 1;
num_rbs = table_38213_13_9_c2[index_4msb];
num_symbols = table_38213_13_9_c3[index_4msb];
rb_offset = table_38213_13_9_c4[index_4msb];
break;
case (scs_240kHz << 5) | scs_120kHz:
AssertFatal(index_4msb < 8, "38.213 Table 13-10 4 MSB out of range\n");
if(index_4msb & 0x3){
mac->type0_pdcch_ss_mux_pattern = 1;
}else if(index_4msb & 0x0c){
mac->type0_pdcch_ss_mux_pattern = 2;
}
num_rbs = table_38213_13_10_c2[index_4msb];
num_symbols = table_38213_13_10_c3[index_4msb];
if(!is_condition_A && (index_4msb == 4 || index_4msb == 6)){
rb_offset = table_38213_13_10_c4[index_4msb]-1;
}else{
rb_offset = table_38213_13_10_c4[index_4msb];
}
break;
default:
break;
}
AssertFatal(num_rbs != -1, "Type0 PDCCH coreset num_rbs undefined");
AssertFatal(num_symbols != -1, "Type0 PDCCH coreset num_symbols undefined");
AssertFatal(rb_offset != -1, "Type0 PDCCH coreset rb_offset undefined");
//uint32_t cell_id = 0; // obtain from L1 later
//mac->type0_pdcch_dci_config.coreset.rb_start = rb_offset;
//mac->type0_pdcch_dci_config.coreset.rb_end = rb_offset + num_rbs - 1;
uint64_t mask = 0x0;
uint8_t i;
for(i=0; i<(num_rbs/6); ++i){ // 38.331 Each bit corresponds a group of 6 RBs
mask = mask >> 1;
mask = mask | 0x100000000000;
}
//LOG_I(MAC,">>>>>>>>mask %x num_rbs %d rb_offset %d\n", mask, num_rbs, rb_offset);
/*
mac->type0_pdcch_dci_config.coreset.frequency_domain_resource = mask;
mac->type0_pdcch_dci_config.coreset.rb_offset = rb_offset; // additional parameter other than coreset
//mac->type0_pdcch_dci_config.type0_pdcch_coreset.duration = num_symbols;
mac->type0_pdcch_dci_config.coreset.cce_reg_mapping_type = CCE_REG_MAPPING_TYPE_INTERLEAVED;
mac->type0_pdcch_dci_config.coreset.cce_reg_interleaved_reg_bundle_size = 6; // L 38.211 7.3.2.2
mac->type0_pdcch_dci_config.coreset.cce_reg_interleaved_interleaver_size = 2; // R 38.211 7.3.2.2
mac->type0_pdcch_dci_config.coreset.cce_reg_interleaved_shift_index = cell_id;
mac->type0_pdcch_dci_config.coreset.precoder_granularity = PRECODER_GRANULARITY_SAME_AS_REG_BUNDLE;
mac->type0_pdcch_dci_config.coreset.pdcch_dmrs_scrambling_id = cell_id;
*/
// type0-pdcch search space
float big_o;
float big_m;
uint32_t temp;
SFN_C_TYPE sfn_c=SFN_C_IMPOSSIBLE; // only valid for mux=1
uint32_t n_c=UINT_MAX;
uint32_t number_of_search_space_per_slot=UINT_MAX;
// uint32_t first_symbol_index=UINT_MAX;
// uint32_t search_space_duration; // element of search space
// 38.213 table 10.1-1
/// MUX PATTERN 1
if(mac->type0_pdcch_ss_mux_pattern == 1 && frequency_range == FR1){
big_o = table_38213_13_11_c1[index_4lsb];
number_of_search_space_per_slot = table_38213_13_11_c2[index_4lsb];
big_m = table_38213_13_11_c3[index_4lsb];
temp = (uint32_t)(big_o*pow(2, scs_pdcch)) + (uint32_t)(ssb_index*big_m);
n_c = temp / num_slot_per_frame;
if((temp/num_slot_per_frame) & 0x1){
sfn_c = SFN_C_MOD_2_EQ_1;
}else{
sfn_c = SFN_C_MOD_2_EQ_0;
}
// if((index_4lsb == 1 || index_4lsb == 3 || index_4lsb == 5 || index_4lsb == 7) && (ssb_index&1)){
// first_symbol_index = num_symbols;
// }else{
// first_symbol_index = table_38213_13_11_c4[index_4lsb];
// }
// 38.213 chapter 13: over two consecutive slots
// search_space_duration = 2;
}
if(mac->type0_pdcch_ss_mux_pattern == 1 && frequency_range == FR2){
big_o = table_38213_13_12_c1[index_4lsb];
number_of_search_space_per_slot = table_38213_13_11_c2[index_4lsb];
big_m = table_38213_13_12_c3[index_4lsb];
// if((index_4lsb == 1 || index_4lsb == 3 || index_4lsb == 5 || index_4lsb == 10) && (ssb_index&1)){
// first_symbol_index = 7;
// }else if((index_4lsb == 6 || index_4lsb == 7 || index_4lsb == 8 || index_4lsb == 11) && (ssb_index&1)){
// first_symbol_index = num_symbols;
// }else{
// first_symbol_index = 0;
// }
// 38.213 chapter 13: over two consecutive slots
//search_space_duration = 2;
}
/// MUX PATTERN 2
if(mac->type0_pdcch_ss_mux_pattern == 2){
if((scs_ssb == scs_120kHz) && (scs_pdcch == scs_60kHz)){
// 38.213 Table 13-13
AssertFatal(index_4lsb == 0, "38.213 Table 13-13 4 LSB out of range\n");
// PDCCH monitoring occasions (SFN and slot number) same as SSB frame-slot
// sfn_c = SFN_C_EQ_SFN_SSB;
n_c = get_ssb_slot(ssb_index);
// switch(ssb_index & 0x3){ // ssb_index(i) mod 4
// case 0:
// first_symbol_index = 0;
// break;
// case 1:
// first_symbol_index = 1;
// break;
// case 2:
// first_symbol_index = 6;
// break;
// case 3:
// first_symbol_index = 7;
// break;
// default: break;
// }
}else if((scs_ssb == scs_240kHz) && (scs_pdcch == scs_120kHz)){
// 38.213 Table 13-14
AssertFatal(index_4lsb == 0, "38.213 Table 13-14 4 LSB out of range\n");
// PDCCH monitoring occasions (SFN and slot number) same as SSB frame-slot
// sfn_c = SFN_C_EQ_SFN_SSB;
n_c = get_ssb_slot(ssb_index);
switch(ssb_index & 0x7){ // ssb_index(i) mod 8
case 0:
// first_symbol_index = 0;
break;
case 1:
// first_symbol_index = 1;
break;
case 2:
// first_symbol_index = 2;
break;
case 3:
// first_symbol_index = 3;
break;
case 4:
// first_symbol_index = 12;
n_c = get_ssb_slot(ssb_index) - 1;
break;
case 5:
// first_symbol_index = 13;
n_c = get_ssb_slot(ssb_index) - 1;
break;
case 6:
// first_symbol_index = 0;
break;
case 7:
// first_symbol_index = 1;
break;
default: break;
}
}else{ ; }
// 38.213 chapter 13: over one slot
// search_space_duration = 1;
}
/// MUX PATTERN 3
if(mac->type0_pdcch_ss_mux_pattern == 3){
if((scs_ssb == scs_120kHz) && (scs_pdcch == scs_120kHz)){
// 38.213 Table 13-15
AssertFatal(index_4lsb == 0, "38.213 Table 13-15 4 LSB out of range\n");
// PDCCH monitoring occasions (SFN and slot number) same as SSB frame-slot
// sfn_c = SFN_C_EQ_SFN_SSB;
n_c = get_ssb_slot(ssb_index);
// switch(ssb_index & 0x3){ // ssb_index(i) mod 4
// case 0:
// first_symbol_index = 4;
// break;
// case 1:
// first_symbol_index = 8;
// break;
// case 2:
// first_symbol_index = 2;
// break;
// case 3:
// first_symbol_index = 6;
// break;
// default: break;
// }
}else{ ; }
// 38.213 chapter 13: over one slot
// search_space_duration = 1;
}
AssertFatal(number_of_search_space_per_slot!=UINT_MAX,"");
/*
uint32_t coreset_duration = num_symbols * number_of_search_space_per_slot;
mac->type0_pdcch_dci_config.number_of_candidates[0] = table_38213_10_1_1_c2[0];
mac->type0_pdcch_dci_config.number_of_candidates[1] = table_38213_10_1_1_c2[1];
mac->type0_pdcch_dci_config.number_of_candidates[2] = table_38213_10_1_1_c2[2]; // CCE aggregation level = 4
mac->type0_pdcch_dci_config.number_of_candidates[3] = table_38213_10_1_1_c2[3]; // CCE aggregation level = 8
mac->type0_pdcch_dci_config.number_of_candidates[4] = table_38213_10_1_1_c2[4]; // CCE aggregation level = 16
mac->type0_pdcch_dci_config.duration = search_space_duration;
mac->type0_pdcch_dci_config.coreset.duration = coreset_duration; // coreset
AssertFatal(first_symbol_index!=UINT_MAX,"");
mac->type0_pdcch_dci_config.monitoring_symbols_within_slot = (0x3fff << first_symbol_index) & (0x3fff >> (14-coreset_duration-first_symbol_index)) & 0x3fff;
*/
AssertFatal(sfn_c!=SFN_C_IMPOSSIBLE,"");
AssertFatal(n_c!=UINT_MAX,"");
mac->type0_pdcch_ss_sfn_c = sfn_c;
mac->type0_pdcch_ss_n_c = n_c;
// fill in the elements in config request inside P5 message
mac->phy_config.Mod_id = module_id;
mac->phy_config.CC_id = cc_id;
mac->dl_config_request.sfn = frame;
mac->dl_config_request.slot = (ssb_index>>1) + ((ssb_index>>4)<<1); // not valid for 240kHz SCS
//}
return 0;
}
// TODO: change to UE parameter, scs: 15KHz, slot duration: 1ms
uint32_t get_ssb_frame(uint32_t test){
return test;
}
/*
* This function returns the slot offset K2 corresponding to a given time domain
* indication value from RRC configuration.
*/
long get_k2(NR_UE_MAC_INST_t *mac, uint8_t time_domain_ind) {
long k2 = -1;
// Get K2 from RRC configuration
NR_PUSCH_Config_t *pusch_config=mac->ULbwp[0]->bwp_Dedicated->pusch_Config->choice.setup;
NR_PUSCH_TimeDomainResourceAllocationList_t *pusch_TimeDomainAllocationList = NULL;
if (pusch_config->pusch_TimeDomainAllocationList) {
pusch_TimeDomainAllocationList = pusch_config->pusch_TimeDomainAllocationList->choice.setup;
}
else if (mac->ULbwp[0]->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList) {
pusch_TimeDomainAllocationList = mac->ULbwp[0]->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList;
}
if (pusch_TimeDomainAllocationList) {
if (time_domain_ind >= pusch_TimeDomainAllocationList->list.count) {
LOG_E(MAC, "time_domain_ind %d >= pusch->TimeDomainAllocationList->list.count %d\n",
time_domain_ind, pusch_TimeDomainAllocationList->list.count);
return -1;
}
k2 = *pusch_TimeDomainAllocationList->list.array[time_domain_ind]->k2;
}
LOG_D(MAC, "get_k2(): k2 is %ld\n", k2);
return k2;
}
/*
* This function returns the UL config corresponding to a given UL slot
* from MAC instance .
*/
fapi_nr_ul_config_request_t *get_ul_config_request(NR_UE_MAC_INST_t *mac, int slot) {
//Check if request to access ul_config is for a UL slot
if (is_nr_UL_slot(mac->scc, slot) == 0) {
LOG_W(MAC, "Slot %d is not a UL slot. get_ul_config_request() called for wrong slot!!!\n", slot);
return NULL;
}
// Calculate the index of the UL slot in mac->ul_config_request list. This is
// based on the TDD pattern (slot configuration period) and number of UL+mixed
// slots in the period. TS 38.213 Sec 11.1
int mu = mac->ULbwp[0]->bwp_Common->genericParameters.subcarrierSpacing;
NR_TDD_UL_DL_Pattern_t *tdd_pattern = &mac->scc->tdd_UL_DL_ConfigurationCommon->pattern1;
const int num_slots_per_tdd = nr_slots_per_frame[mu] >> (7 - tdd_pattern->dl_UL_TransmissionPeriodicity);
const int num_slots_ul = tdd_pattern->nrofUplinkSlots + (tdd_pattern->nrofUplinkSymbols!=0);
int index = (slot + num_slots_ul - num_slots_per_tdd) % num_slots_per_tdd;
LOG_D(MAC, "nr_ue_procedures: get_ul_config_request() slots per tdd %d, num_slots_ul %d, index %d\n",
num_slots_per_tdd,
num_slots_ul,
index);
return &mac->ul_config_request[index];
}
// Performs :
// 1. TODO: Call RRC for link status return to PHY
// 2. TODO: Perform SR/BSR procedures for scheduling feedback
// 3. TODO: Perform PHR procedures
NR_UE_L2_STATE_t nr_ue_scheduler(nr_downlink_indication_t *dl_info, nr_uplink_indication_t *ul_info){
uint32_t search_space_mask = 0;
if (dl_info){
module_id_t mod_id = dl_info->module_id;
uint32_t gNB_index = dl_info->gNB_index;
int cc_id = dl_info->cc_id;
frame_t rx_frame = dl_info->frame;
slot_t rx_slot = dl_info->slot;
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
fapi_nr_dl_config_request_t *dl_config = &mac->dl_config_request;
nr_scheduled_response_t scheduled_response;
nr_dcireq_t dcireq;
// check type0 from 38.213 13 if we have no CellGroupConfig
// TODO: implementation to be completed
if (mac->scg == NULL) {
if(dl_info->ssb_index != -1){
if(mac->type0_pdcch_ss_mux_pattern == 1){
// 38.213 chapter 13
if((mac->type0_pdcch_ss_sfn_c == SFN_C_MOD_2_EQ_0) && !(rx_frame & 0x1) && (rx_slot == mac->type0_pdcch_ss_n_c)){
search_space_mask = search_space_mask | type0_pdcch;
mac->type0_pdcch_consecutive_slots = mac->type0_pdcch_dci_config.coreset.duration;
}
if((mac->type0_pdcch_ss_sfn_c == SFN_C_MOD_2_EQ_1) && (rx_frame & 0x1) && (rx_slot == mac->type0_pdcch_ss_n_c)){
search_space_mask = search_space_mask | type0_pdcch;
mac->type0_pdcch_consecutive_slots = mac->type0_pdcch_dci_config.coreset.duration;
}
}
if(mac->type0_pdcch_ss_mux_pattern == 2){
// 38.213 Table 13-13, 13-14
if((rx_frame == get_ssb_frame(rx_frame)) && (rx_slot == mac->type0_pdcch_ss_n_c)){
search_space_mask = search_space_mask | type0_pdcch;
mac->type0_pdcch_consecutive_slots = mac->type0_pdcch_dci_config.coreset.duration;
}
}
if(mac->type0_pdcch_ss_mux_pattern == 3){
// 38.213 Table 13-15
if((rx_frame == get_ssb_frame(rx_frame)) && (rx_slot == mac->type0_pdcch_ss_n_c)){
search_space_mask = search_space_mask | type0_pdcch;
mac->type0_pdcch_consecutive_slots = mac->type0_pdcch_dci_config.coreset.duration;
}
}
} // ssb_index != -1
// Type0 PDCCH search space
if((search_space_mask & type0_pdcch) || ( mac->type0_pdcch_consecutive_slots != 0 )){
mac->type0_pdcch_consecutive_slots = mac->type0_pdcch_consecutive_slots - 1;
dl_config->dl_config_list[dl_config->number_pdus].dci_config_pdu.dci_config_rel15 = mac->type0_pdcch_dci_config;
dl_config->dl_config_list[dl_config->number_pdus].pdu_type = FAPI_NR_DL_CONFIG_TYPE_DCI;
/*
dl_config->dl_config_list[dl_config->number_pdus].dci_config_pdu.dci_config_rel15.rnti = 0xaaaa; // to be set
dl_config->dl_config_list[dl_config->number_pdus].dci_config_pdu.dci_config_rel15.N_RB_BWP = 106; // to be set
LOG_I(MAC,"nr_ue_scheduler Type0 PDCCH with rnti %x, BWP %d\n",
dl_config->dl_config_list[dl_config->number_pdus].dci_config_pdu.dci_config_rel15.rnti,
dl_config->dl_config_list[dl_config->number_pdus].dci_config_pdu.dci_config_rel15.N_RB_BWP);
*/
dl_config->number_pdus = dl_config->number_pdus + 1;
fill_scheduled_response(&scheduled_response, dl_config, NULL, NULL, mod_id, cc_id, rx_frame, rx_slot, dl_info->thread_id);
if(mac->if_module != NULL && mac->if_module->scheduled_response != NULL)
mac->if_module->scheduled_response(&scheduled_response);
}
} else { // we have an scg
dcireq.module_id = mod_id;
dcireq.gNB_index = gNB_index;
dcireq.cc_id = cc_id;
dcireq.frame = rx_frame;
dcireq.slot = rx_slot;
dcireq.dl_config_req.number_pdus = 0;
nr_ue_dcireq(&dcireq); //to be replaced with function pointer later
fill_scheduled_response(&scheduled_response, &dcireq.dl_config_req, NULL, NULL, mod_id, cc_id, rx_frame, rx_slot, dl_info->thread_id);
if(mac->if_module != NULL && mac->if_module->scheduled_response != NULL){
mac->if_module->scheduled_response(&scheduled_response);
}
/*
if(search_space_mask & type0a_pdcch){
}
if(search_space_mask & type1_pdcch){
}
if(search_space_mask & type2_pdcch){
}
if(search_space_mask & type3_pdcch){
}
*/
}
} else if (ul_info) {
module_id_t mod_id = ul_info->module_id;
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
RA_config_t *ra = &mac->ra;
if (ra->ra_state == WAIT_RAR){
if (ra->RA_active && ul_info->slot_tx == ra->msg3_slot && ul_info->frame_tx == ra->msg3_frame){
uint8_t ulsch_input_buffer[MAX_ULSCH_PAYLOAD_BYTES];
nr_scheduled_response_t scheduled_response;
fapi_nr_tx_request_t tx_req;
//fapi_nr_ul_config_request_t *ul_config = get_ul_config_request(mac, ul_info->slot_tx);
fapi_nr_ul_config_request_t *ul_config = &mac->ul_config_request[0];
fapi_nr_ul_config_request_pdu_t *ul_config_list = &ul_config->ul_config_list[ul_config->number_pdus];
uint16_t TBS_bytes = ul_config_list->pusch_config_pdu.pusch_data.tb_size;
//if (IS_SOFTMODEM_NOS1){
// // Getting IP traffic to be transmitted
// data_existing = nr_ue_get_sdu(mod_id,
// cc_id,
// frame_tx,
// slot_tx,
// 0,
// ulsch_input_buffer,
// TBS_bytes,
// &access_mode);
//}
//Random traffic to be transmitted if there is no IP traffic available for this Tx opportunity
//if (!IS_SOFTMODEM_NOS1 || !data_existing) {
//Use zeros for the header bytes in noS1 mode, in order to make sure that the LCID is not valid
//and block this traffic from being forwarded to the upper layers at the gNB
LOG_D(MAC, "Random data to be tranmsitted (TBS_bytes %d): \n", TBS_bytes);
//Give the first byte a dummy value (a value not corresponding to any valid LCID based on 38.321, Table 6.2.1-2)
//in order to distinguish the PHY random packets at the MAC layer of the gNB receiver from the normal packets that should
//have a valid LCID (nr_process_mac_pdu function)
ulsch_input_buffer[0] = 0x31;
for (int i = 1; i < TBS_bytes; i++) {
ulsch_input_buffer[i] = (unsigned char) rand();
//printf(" input encoder a[%d]=0x%02x\n",i,harq_process_ul_ue->a[i]);
}
//}
LOG_D(MAC, "[UE %d] Frame %d, Subframe %d Adding Msg3 UL Config Request for rnti: %x\n",
ul_info->module_id,
ul_info->frame_tx,
ul_info->slot_tx,
ra->t_crnti);
// Config UL TX PDU
tx_req.slot = ul_info->slot_tx;
tx_req.sfn = ul_info->frame_tx;
tx_req.number_of_pdus = 1;
tx_req.tx_request_body[0].pdu_length = TBS_bytes;
tx_req.tx_request_body[0].pdu_index = 0;
tx_req.tx_request_body[0].pdu = ulsch_input_buffer;
ul_config_list->pdu_type = FAPI_NR_UL_CONFIG_TYPE_PUSCH;
ul_config->number_pdus++;
// scheduled_response
fill_scheduled_response(&scheduled_response, NULL, ul_config, &tx_req, ul_info->module_id, ul_info->cc_id, ul_info->frame_rx, ul_info->slot_rx, ul_info->thread_id);
if(mac->if_module != NULL && mac->if_module->scheduled_response != NULL){
mac->if_module->scheduled_response(&scheduled_response);
}
if (!ra->cfra){
nr_Msg3_transmitted(ul_info->module_id, ul_info->cc_id, ul_info->frame_tx, ul_info->gNB_index);
}
}
} else if (ra->ra_state == RA_SUCCEEDED || get_softmodem_params()->phy_test) {
uint8_t nb_dmrs_re_per_rb;
uint8_t ulsch_input_buffer[MAX_ULSCH_PAYLOAD_BYTES];
uint8_t data_existing = 0;
uint16_t TBS_bytes;
uint32_t TBS;
int i, N_PRB_oh;
int cc_id = ul_info->cc_id;
frame_t rx_frame = ul_info->frame_rx;
slot_t rx_slot = ul_info->slot_rx;
frame_t frame_tx = ul_info->frame_tx;
slot_t slot_tx = ul_info->slot_tx;
uint8_t access_mode = SCHEDULED_ACCESS;
fapi_nr_ul_config_request_t *ul_config_req = get_ul_config_request(mac, slot_tx);
// Schedule ULSCH only if the current frame and slot match those in ul_config_req
// AND if a UL DCI has been received (as indicated by num_pdus).
if ((frame_tx == ul_config_req->sfn && slot_tx == ul_config_req->slot) &&
ul_config_req->number_pdus > 0) {
// program PUSCH with UL DCI parameters
nr_scheduled_response_t scheduled_response;
fapi_nr_tx_request_t tx_req;
nfapi_nr_ue_ptrs_ports_t ptrs_ports_list;
for (int j = 0; j < ul_config_req->number_pdus; j++) {
fapi_nr_ul_config_request_pdu_t *ulcfg_pdu = &ul_config_req->ul_config_list[j];
if (ulcfg_pdu->pdu_type == FAPI_NR_UL_CONFIG_TYPE_PUSCH) {
// These should come from RRC config!!!
uint8_t ptrs_mcs1 = 2;
uint8_t ptrs_mcs2 = 4;
uint8_t ptrs_mcs3 = 10;
uint16_t n_rb0 = 25;
uint16_t n_rb1 = 75;
uint8_t ptrs_time_density = get_L_ptrs(ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, ulcfg_pdu->pusch_config_pdu.mcs_index, ulcfg_pdu->pusch_config_pdu.mcs_table);
uint8_t ptrs_freq_density = get_K_ptrs(n_rb0, n_rb1, ulcfg_pdu->pusch_config_pdu.rb_size);
uint16_t l_prime_mask = get_l_prime(ulcfg_pdu->pusch_config_pdu.nr_of_symbols, typeB, pusch_dmrs_pos0, pusch_len1);
uint16_t ul_dmrs_symb_pos = l_prime_mask << ulcfg_pdu->pusch_config_pdu.start_symbol_index;
uint8_t dmrs_config_type = 0;
uint16_t number_dmrs_symbols = 0;
// PTRS ports configuration
// TbD: ptrs_dmrs_port and ptrs_port_index are not initialised!
ptrs_ports_list.ptrs_re_offset = 0;
// Num PRB Overhead from PUSCH-ServingCellConfig
if (mac->scg->spCellConfig->spCellConfigDedicated->uplinkConfig->pusch_ServingCellConfig->choice.setup->xOverhead == NULL)
N_PRB_oh = 0;
else
N_PRB_oh = *mac->scg->spCellConfig->spCellConfigDedicated->uplinkConfig->pusch_ServingCellConfig->choice.setup->xOverhead;
ulcfg_pdu->pusch_config_pdu.ul_dmrs_symb_pos = ul_dmrs_symb_pos;
ulcfg_pdu->pusch_config_pdu.dmrs_config_type = dmrs_config_type;
ulcfg_pdu->pusch_config_pdu.num_dmrs_cdm_grps_no_data = 1;
ulcfg_pdu->pusch_config_pdu.nrOfLayers = 1;
ulcfg_pdu->pusch_config_pdu.pusch_data.new_data_indicator = 0;
ulcfg_pdu->pusch_config_pdu.pdu_bit_map = PUSCH_PDU_BITMAP_PUSCH_DATA;
ulcfg_pdu->pusch_config_pdu.pusch_ptrs.ptrs_time_density = ptrs_time_density;
ulcfg_pdu->pusch_config_pdu.pusch_ptrs.ptrs_freq_density = ptrs_freq_density;
ulcfg_pdu->pusch_config_pdu.pusch_ptrs.ptrs_ports_list = &ptrs_ports_list;
//ulcfg_pdu->pusch_config_pdu.target_code_rate = nr_get_code_rate_ul(ulcfg_pdu->pusch_config_pdu.mcs_index, ulcfg_pdu->pusch_config_pdu.mcs_table);
//ulcfg_pdu->pusch_config_pdu.qam_mod_order = nr_get_Qm_ul(ulcfg_pdu->pusch_config_pdu.mcs_index, ulcfg_pdu->pusch_config_pdu.mcs_table);
if (1 << ulcfg_pdu->pusch_config_pdu.pusch_ptrs.ptrs_time_density >= ulcfg_pdu->pusch_config_pdu.nr_of_symbols) {
ulcfg_pdu->pusch_config_pdu.pdu_bit_map &= ~PUSCH_PDU_BITMAP_PUSCH_PTRS; // disable PUSCH PTRS
}
get_num_re_dmrs(&ulcfg_pdu->pusch_config_pdu,
&nb_dmrs_re_per_rb,
&number_dmrs_symbols);
TBS = nr_compute_tbs(ulcfg_pdu->pusch_config_pdu.qam_mod_order,
ulcfg_pdu->pusch_config_pdu.target_code_rate,
ulcfg_pdu->pusch_config_pdu.rb_size,
ulcfg_pdu->pusch_config_pdu.nr_of_symbols,
nb_dmrs_re_per_rb*number_dmrs_symbols,
N_PRB_oh,
0,
ulcfg_pdu->pusch_config_pdu.nrOfLayers);
TBS_bytes = TBS/8;
ulcfg_pdu->pusch_config_pdu.pusch_data.tb_size = TBS_bytes;
if (IS_SOFTMODEM_NOS1){
// Getting IP traffic to be transmitted
data_existing = nr_ue_get_sdu(mod_id,
cc_id,
frame_tx,
slot_tx,
0,
ulsch_input_buffer,
TBS_bytes,
&access_mode);
}
//Random traffic to be transmitted if there is no IP traffic available for this Tx opportunity
if (!IS_SOFTMODEM_NOS1 || !data_existing) {
//Use zeros for the header bytes in noS1 mode, in order to make sure that the LCID is not valid
//and block this traffic from being forwarded to the upper layers at the gNB
LOG_D(PHY, "Random data to be tranmsitted: \n");
//Give the first byte a dummy value (a value not corresponding to any valid LCID based on 38.321, Table 6.2.1-2)
//in order to distinguish the PHY random packets at the MAC layer of the gNB receiver from the normal packets that should
//have a valid LCID (nr_process_mac_pdu function)
ulsch_input_buffer[0] = 0x31;
for (i = 1; i < TBS_bytes; i++) {
ulsch_input_buffer[i] = (unsigned char) rand();
//printf(" input encoder a[%d]=0x%02x\n",i,harq_process_ul_ue->a[i]);
}
}
#ifdef DEBUG_MAC_PDU
LOG_D(PHY, "Is data existing ?: %d \n", data_existing);
LOG_I(PHY, "Printing MAC PDU to be encoded, TBS is: %d \n", TBS_bytes);
for (i = 0; i < TBS_bytes; i++) {
printf("%02x", ulsch_input_buffer[i]);
}
printf("\n");
#endif
// Config UL TX PDU
tx_req.slot = slot_tx;
tx_req.sfn = frame_tx;
// tx_req->tx_config // TbD
tx_req.number_of_pdus++;
tx_req.tx_request_body[j].pdu_length = TBS_bytes;
tx_req.tx_request_body[j].pdu_index = j;
tx_req.tx_request_body[j].pdu = ulsch_input_buffer;
}
}
fill_scheduled_response(&scheduled_response, NULL, ul_config_req, &tx_req, mod_id, cc_id, rx_frame, rx_slot, ul_info->thread_id);
if(mac->if_module != NULL && mac->if_module->scheduled_response != NULL){
mac->if_module->scheduled_response(&scheduled_response);
}
}
}
}
return UE_CONNECTION_OK;
}
// PUSCH Msg3 scheduled by RAR UL grant according to 8.3 of TS 38.213
// Note: Msg3 tx in the uplink symbols of mixed slot
void nr_ue_msg3_scheduler(NR_UE_MAC_INST_t *mac,
frame_t current_frame,
sub_frame_t current_slot,
uint8_t Msg3_tda_id){
int delta = 0;
RA_config_t *ra = &mac->ra;
NR_BWP_Uplink_t *ubwp = mac->ULbwp[0];
int mu = ubwp->bwp_Common->genericParameters.subcarrierSpacing;
struct NR_PUSCH_TimeDomainResourceAllocationList *pusch_TimeDomainAllocationList = ubwp->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList;
// k2 as per 3GPP TS 38.214 version 15.9.0 Release 15 ch 6.1.2.1.1
// PUSCH time domain resource allocation is higher layer configured from uschTimeDomainAllocationList in either pusch-ConfigCommon
uint8_t k2 = *pusch_TimeDomainAllocationList->list.array[Msg3_tda_id]->k2;
switch (mu) {
case 0:
delta = 2;
break;
case 1:
delta = 3;
break;
case 2:
delta = 4;
break;
case 3:
delta = 6;
break;
}
ra->msg3_slot = (current_slot + k2 + delta) % nr_slots_per_frame[mu];
if (current_slot + k2 + delta > nr_slots_per_frame[mu])
ra->msg3_frame = (current_frame + 1) % 1024;
else
ra->msg3_frame = current_frame;
#ifdef DEBUG_MSG3
LOG_D(MAC, "[DEBUG_MSG3] current_slot %d k2 %d delta %d temp_slot %d msg3_frame %d msg3_slot %d \n", current_slot, k2, delta, current_slot + k2 + delta, ra->msg3_frame, ra->msg3_slot);
#endif
}
// This function schedules the PRACH according to prach_ConfigurationIndex and TS 38.211, tables 6.3.3.2.x
// PRACH formats 9, 10, 11 are corresponding to dual PRACH format configurations A1/B1, A2/B2, A3/B3.
// - todo:
// - Partial configuration is actually already stored in (fapi_nr_prach_config_t) &mac->phy_config.config_req->prach_config
void nr_ue_prach_scheduler(module_id_t module_idP, frame_t frameP, sub_frame_t slotP, int thread_id) {
uint16_t format, format0, format1, ncs;
int is_nr_prach_slot;
prach_occasion_info_t *prach_occasion_info_p;
NR_UE_MAC_INST_t *mac = get_mac_inst(module_idP);
RA_config_t *ra = &mac->ra;
//fapi_nr_ul_config_request_t *ul_config = get_ul_config_request(mac, slotP);
fapi_nr_ul_config_request_t *ul_config = &mac->ul_config_request[0];
fapi_nr_ul_config_prach_pdu *prach_config_pdu;
fapi_nr_config_request_t *cfg = &mac->phy_config.config_req;
fapi_nr_prach_config_t *prach_config = &cfg->prach_config;
nr_scheduled_response_t scheduled_response;
NR_ServingCellConfigCommon_t *scc = mac->scc;
NR_RACH_ConfigCommon_t *setup = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup;
NR_RACH_ConfigGeneric_t *rach_ConfigGeneric = &setup->rach_ConfigGeneric;
ra->RA_offset = 2; // to compensate the rx frame offset at the gNB
ra->generate_nr_prach = 0; // Reset flag for PRACH generation
if (is_nr_UL_slot(scc, slotP)) {
// WIP Need to get the proper selected ssb_idx
// Initial beam selection functionality is not available yet
uint8_t selected_gnb_ssb_idx = 0;
// Get any valid PRACH occasion in the current slot for the selected SSB index
is_nr_prach_slot = get_nr_prach_info_from_ssb_index(selected_gnb_ssb_idx,
(int)frameP,
(int)slotP,
&prach_occasion_info_p);
if (is_nr_prach_slot && ra->ra_state == RA_UE_IDLE) {
AssertFatal(NULL != prach_occasion_info_p,"PRACH Occasion Info not returned in a valid NR Prach Slot\n");
ra->generate_nr_prach = 1;
format = prach_occasion_info_p->format;
format0 = format & 0xff; // single PRACH format
format1 = (format >> 8) & 0xff; // dual PRACH format
ul_config->sfn = frameP;
ul_config->slot = slotP;
ul_config->ul_config_list[ul_config->number_pdus].pdu_type = FAPI_NR_UL_CONFIG_TYPE_PRACH;
prach_config_pdu = &ul_config->ul_config_list[ul_config->number_pdus].prach_config_pdu;
memset(prach_config_pdu, 0, sizeof(fapi_nr_ul_config_prach_pdu));
ul_config->number_pdus += 1;
ncs = get_NCS(rach_ConfigGeneric->zeroCorrelationZoneConfig, format0, setup->restrictedSetConfig);
prach_config_pdu->phys_cell_id = *scc->physCellId;
prach_config_pdu->num_prach_ocas = 1;
prach_config_pdu->prach_slot = prach_occasion_info_p->slot;
prach_config_pdu->prach_start_symbol = prach_occasion_info_p->start_symbol;
prach_config_pdu->num_ra = prach_occasion_info_p->fdm;
prach_config_pdu->num_cs = ncs;
prach_config_pdu->root_seq_id = prach_config->num_prach_fd_occasions_list[prach_occasion_info_p->fdm].prach_root_sequence_index;
prach_config_pdu->restricted_set = prach_config->restricted_set_config;
prach_config_pdu->freq_msg1 = prach_config->num_prach_fd_occasions_list[prach_occasion_info_p->fdm].k1;
LOG_D(MAC,"Selected RO Frame %u, Slot %u, Symbol %u, Fdm %u\n", frameP, prach_config_pdu->prach_slot, prach_config_pdu->prach_start_symbol, prach_config_pdu->num_ra);
// Search which SSB is mapped in the RO (among all the SSBs mapped to this RO)
for (prach_config_pdu->ssb_nb_in_ro=0; prach_config_pdu->ssb_nb_in_ro<prach_occasion_info_p->nb_mapped_ssb; prach_config_pdu->ssb_nb_in_ro++) {
if (prach_occasion_info_p->mapped_ssb_idx[prach_config_pdu->ssb_nb_in_ro] == selected_gnb_ssb_idx)
break;
}
AssertFatal(prach_config_pdu->ssb_nb_in_ro<prach_occasion_info_p->nb_mapped_ssb, "%u not found in the mapped SSBs to the PRACH occasion", selected_gnb_ssb_idx);
if (format1 != 0xff) {
switch(format0) { // dual PRACH format
case 0xa1:
prach_config_pdu->prach_format = 11;
break;
case 0xa2:
prach_config_pdu->prach_format = 12;
break;
case 0xa3:
prach_config_pdu->prach_format = 13;
break;
default:
AssertFatal(1 == 0, "Only formats A1/B1 A2/B2 A3/B3 are valid for dual format");
}
} else {
switch(format0) { // single PRACH format
case 0:
prach_config_pdu->prach_format = 0;
break;
case 1:
prach_config_pdu->prach_format = 1;
break;
case 2:
prach_config_pdu->prach_format = 2;
break;
case 3:
prach_config_pdu->prach_format = 3;
break;
case 0xa1:
prach_config_pdu->prach_format = 4;
break;
case 0xa2:
prach_config_pdu->prach_format = 5;
break;
case 0xa3:
prach_config_pdu->prach_format = 6;
break;
case 0xb1:
prach_config_pdu->prach_format = 7;
break;
case 0xb4:
prach_config_pdu->prach_format = 8;
break;
case 0xc0:
prach_config_pdu->prach_format = 9;
break;
case 0xc2:
prach_config_pdu->prach_format = 10;
break;
default:
AssertFatal(1 == 0, "Invalid PRACH format");
}
} // if format1
} // is_nr_prach_slot
fill_scheduled_response(&scheduled_response, NULL, ul_config, NULL, module_idP, 0 /*TBR fix*/, frameP, slotP, thread_id);
if(mac->if_module != NULL && mac->if_module->scheduled_response != NULL)
mac->if_module->scheduled_response(&scheduled_response);
} // if is_nr_UL_slot
}
/*
* This code contains all the functions needed to process all dci fields.
* These tables and functions are going to be called by function nr_ue_process_dci
*/
int8_t nr_ue_process_dci_freq_dom_resource_assignment(nfapi_nr_ue_pusch_pdu_t *pusch_config_pdu,
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config_pdu,
uint16_t n_RB_ULBWP,
uint16_t n_RB_DLBWP,
uint16_t riv
){
/*
* TS 38.214 subclause 5.1.2.2 Resource allocation in frequency domain (downlink)
* when the scheduling grant is received with DCI format 1_0, then downlink resource allocation type 1 is used
*/
if(dlsch_config_pdu != NULL){
/*
* TS 38.214 subclause 5.1.2.2.1 Downlink resource allocation type 0
*/
/*
* TS 38.214 subclause 5.1.2.2.2 Downlink resource allocation type 1
*/
dlsch_config_pdu->number_rbs = NRRIV2BW(riv,n_RB_DLBWP);
dlsch_config_pdu->start_rb = NRRIV2PRBOFFSET(riv,n_RB_DLBWP);
// Sanity check in case a false or erroneous DCI is received
if ((dlsch_config_pdu->number_rbs < 1 ) || (dlsch_config_pdu->number_rbs > n_RB_DLBWP - dlsch_config_pdu->start_rb)) {
// DCI is invalid!
LOG_W(MAC, "Frequency domain assignment values are invalid! #RBs: %d, Start RB: %d, n_RB_DLBWP: %d \n", dlsch_config_pdu->number_rbs, dlsch_config_pdu->start_rb, n_RB_DLBWP);
return -1;
}
}
if(pusch_config_pdu != NULL){
/*
* TS 38.214 subclause 6.1.2.2 Resource allocation in frequency domain (uplink)
*/
/*
* TS 38.214 subclause 6.1.2.2.1 Uplink resource allocation type 0
*/
/*
* TS 38.214 subclause 6.1.2.2.2 Uplink resource allocation type 1
*/
pusch_config_pdu->rb_size = NRRIV2BW(riv,n_RB_ULBWP);
pusch_config_pdu->rb_start = NRRIV2PRBOFFSET(riv,n_RB_ULBWP);
// Sanity check in case a false or erroneous DCI is received
if ((pusch_config_pdu->rb_size < 1) || (pusch_config_pdu->rb_size > n_RB_ULBWP - pusch_config_pdu->rb_start)) {
// DCI is invalid!
LOG_W(MAC, "Frequency domain assignment values are invalid! #RBs: %d, Start RB: %d, n_RB_ULBWP: %d \n",pusch_config_pdu->rb_size, pusch_config_pdu->rb_start, n_RB_ULBWP);
return -1;
}
}
return 0;
}
int8_t nr_ue_process_dci_time_dom_resource_assignment(NR_UE_MAC_INST_t *mac,
nfapi_nr_ue_pusch_pdu_t *pusch_config_pdu,
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config_pdu,
uint8_t time_domain_ind
){
int dmrs_typeA_pos = mac->scc->dmrs_TypeA_Position;
// uint8_t k_offset=0;
uint8_t sliv_S=0;
uint8_t sliv_L=0;
uint8_t table_5_1_2_1_1_2_time_dom_res_alloc_A[16][3]={ // for PDSCH from TS 38.214 subclause 5.1.2.1.1
{0,(dmrs_typeA_pos == 0)?2:3, (dmrs_typeA_pos == 0)?12:11}, // row index 1
{0,(dmrs_typeA_pos == 0)?2:3, (dmrs_typeA_pos == 0)?10:9}, // row index 2
{0,(dmrs_typeA_pos == 0)?2:3, (dmrs_typeA_pos == 0)?9:8}, // row index 3
{0,(dmrs_typeA_pos == 0)?2:3, (dmrs_typeA_pos == 0)?7:6}, // row index 4
{0,(dmrs_typeA_pos == 0)?2:3, (dmrs_typeA_pos == 0)?5:4}, // row index 5
{0,(dmrs_typeA_pos == 0)?9:10,(dmrs_typeA_pos == 0)?4:4}, // row index 6
{0,(dmrs_typeA_pos == 0)?4:6, (dmrs_typeA_pos == 0)?4:4}, // row index 7
{0,5,7}, // row index 8
{0,5,2}, // row index 9
{0,9,2}, // row index 10
{0,12,2}, // row index 11
{0,1,13}, // row index 12
{0,1,6}, // row index 13
{0,2,4}, // row index 14
{0,4,7}, // row index 15
{0,8,4} // row index 16
};
/*uint8_t table_5_1_2_1_1_3_time_dom_res_alloc_A_extCP[16][3]={ // for PDSCH from TS 38.214 subclause 5.1.2.1.1
{0,(dmrs_typeA_pos == 0)?2:3, (dmrs_typeA_pos == 0)?6:5}, // row index 1
{0,(dmrs_typeA_pos == 0)?2:3, (dmrs_typeA_pos == 0)?10:9}, // row index 2
{0,(dmrs_typeA_pos == 0)?2:3, (dmrs_typeA_pos == 0)?9:8}, // row index 3
{0,(dmrs_typeA_pos == 0)?2:3, (dmrs_typeA_pos == 0)?7:6}, // row index 4
{0,(dmrs_typeA_pos == 0)?2:3, (dmrs_typeA_pos == 0)?5:4}, // row index 5
{0,(dmrs_typeA_pos == 0)?6:8, (dmrs_typeA_pos == 0)?4:2}, // row index 6
{0,(dmrs_typeA_pos == 0)?4:6, (dmrs_typeA_pos == 0)?4:4}, // row index 7
{0,5,6}, // row index 8
{0,5,2}, // row index 9
{0,9,2}, // row index 10
{0,10,2}, // row index 11
{0,1,11}, // row index 12
{0,1,6}, // row index 13
{0,2,4}, // row index 14
{0,4,6}, // row index 15
{0,8,4} // row index 16
};*/
/*uint8_t table_5_1_2_1_1_4_time_dom_res_alloc_B[16][3]={ // for PDSCH from TS 38.214 subclause 5.1.2.1.1
{0,2,2}, // row index 1
{0,4,2}, // row index 2
{0,6,2}, // row index 3
{0,8,2}, // row index 4
{0,10,2}, // row index 5
{1,2,2}, // row index 6
{1,4,2}, // row index 7
{0,2,4}, // row index 8
{0,4,4}, // row index 9
{0,6,4}, // row index 10
{0,8,4}, // row index 11
{0,10,4}, // row index 12
{0,2,7}, // row index 13
{0,(dmrs_typeA_pos == 0)?2:3,(dmrs_typeA_pos == 0)?12:11}, // row index 14
{1,2,4}, // row index 15
{0,0,0} // row index 16
};*/
/*uint8_t table_5_1_2_1_1_5_time_dom_res_alloc_C[16][3]={ // for PDSCH from TS 38.214 subclause 5.1.2.1.1
{0,2,2}, // row index 1
{0,4,2}, // row index 2
{0,6,2}, // row index 3
{0,8,2}, // row index 4
{0,10,2}, // row index 5
{0,0,0}, // row index 6
{0,0,0}, // row index 7
{0,2,4}, // row index 8
{0,4,4}, // row index 9
{0,6,4}, // row index 10
{0,8,4}, // row index 11
{0,10,4}, // row index 12
{0,2,7}, // row index 13
{0,(dmrs_typeA_pos == 0)?2:3,(dmrs_typeA_pos == 0)?12:11}, // row index 14
{0,0,6}, // row index 15
{0,2,6} // row index 16
};*/
uint8_t mu_pusch = 1;
// definition table j Table 6.1.2.1.1-4
uint8_t j = (mu_pusch==3)?3:(mu_pusch==2)?2:1;
uint8_t table_6_1_2_1_1_2_time_dom_res_alloc_A[16][3]={ // for PUSCH from TS 38.214 subclause 6.1.2.1.1
{j, 0,14}, // row index 1
{j, 0,12}, // row index 2
{j, 0,10}, // row index 3
{j, 2,10}, // row index 4
{j, 4,10}, // row index 5
{j, 4,8}, // row index 6
{j, 4,6}, // row index 7
{j+1,0,14}, // row index 8
{j+1,0,12}, // row index 9
{j+1,0,10}, // row index 10
{j+2,0,14}, // row index 11
{j+2,0,12}, // row index 12
{j+2,0,10}, // row index 13
{j, 8,6}, // row index 14
{j+3,0,14}, // row index 15
{j+3,0,10} // row index 16
};
/*uint8_t table_6_1_2_1_1_3_time_dom_res_alloc_A_extCP[16][3]={ // for PUSCH from TS 38.214 subclause 6.1.2.1.1
{j, 0,8}, // row index 1
{j, 0,12}, // row index 2
{j, 0,10}, // row index 3
{j, 2,10}, // row index 4
{j, 4,4}, // row index 5
{j, 4,8}, // row index 6
{j, 4,6}, // row index 7
{j+1,0,8}, // row index 8
{j+1,0,12}, // row index 9
{j+1,0,10}, // row index 10
{j+2,0,6}, // row index 11
{j+2,0,12}, // row index 12
{j+2,0,10}, // row index 13
{j, 8,4}, // row index 14
{j+3,0,8}, // row index 15
{j+3,0,10} // row index 16
};*/
/*
* TS 38.214 subclause 5.1.2.1 Resource allocation in time domain (downlink)
*/
if(dlsch_config_pdu != NULL){
NR_PDSCH_TimeDomainResourceAllocationList_t *pdsch_TimeDomainAllocationList = NULL;
if (mac->DLbwp[0]->bwp_Dedicated->pdsch_Config->choice.setup->pdsch_TimeDomainAllocationList)
pdsch_TimeDomainAllocationList = mac->DLbwp[0]->bwp_Dedicated->pdsch_Config->choice.setup->pdsch_TimeDomainAllocationList->choice.setup;
else if (mac->DLbwp[0]->bwp_Common->pdsch_ConfigCommon->choice.setup->pdsch_TimeDomainAllocationList)
pdsch_TimeDomainAllocationList = mac->DLbwp[0]->bwp_Common->pdsch_ConfigCommon->choice.setup->pdsch_TimeDomainAllocationList;
if (pdsch_TimeDomainAllocationList) {
if (time_domain_ind >= pdsch_TimeDomainAllocationList->list.count) {
LOG_E(MAC, "time_domain_ind %d >= pdsch->TimeDomainAllocationList->list.count %d\n",
time_domain_ind, pdsch_TimeDomainAllocationList->list.count);
dlsch_config_pdu->start_symbol = 0;
dlsch_config_pdu->number_symbols = 0;
return -1;
}
int startSymbolAndLength = pdsch_TimeDomainAllocationList->list.array[time_domain_ind]->startSymbolAndLength;
int S,L;
SLIV2SL(startSymbolAndLength,&S,&L);
dlsch_config_pdu->start_symbol=S;
dlsch_config_pdu->number_symbols=L;
}
else {// Default configuration from tables
// k_offset = table_5_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][0];
sliv_S = table_5_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][1];
sliv_L = table_5_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][2];
// k_offset = table_5_1_2_1_1_3_time_dom_res_alloc_A_extCP[nr_pdci_info_extracted->time_dom_resource_assignment][0];
// sliv_S = table_5_1_2_1_1_3_time_dom_res_alloc_A_extCP[nr_pdci_info_extracted->time_dom_resource_assignment][1];
// sliv_L = table_5_1_2_1_1_3_time_dom_res_alloc_A_extCP[nr_pdci_info_extracted->time_dom_resource_assignment][2];
// k_offset = table_5_1_2_1_1_4_time_dom_res_alloc_B[nr_pdci_info_extracted->time_dom_resource_assignment][0];
// sliv_S = table_5_1_2_1_1_4_time_dom_res_alloc_B[nr_pdci_info_extracted->time_dom_resource_assignment][1];
// sliv_L = table_5_1_2_1_1_4_time_dom_res_alloc_B[nr_pdci_info_extracted->time_dom_resource_assignment][2];
// k_offset = table_5_1_2_1_1_5_time_dom_res_alloc_C[nr_pdci_info_extracted->time_dom_resource_assignment][0];
// sliv_S = table_5_1_2_1_1_5_time_dom_res_alloc_C[nr_pdci_info_extracted->time_dom_resource_assignment][1];
// sliv_L = table_5_1_2_1_1_5_time_dom_res_alloc_C[nr_pdci_info_extracted->time_dom_resource_assignment][2];
dlsch_config_pdu->number_symbols = sliv_L;
dlsch_config_pdu->start_symbol = sliv_S;
}
} /*
* TS 38.214 subclause 6.1.2.1 Resource allocation in time domain (uplink)
*/
if(pusch_config_pdu != NULL){
NR_PUSCH_TimeDomainResourceAllocationList_t *pusch_TimeDomainAllocationList = NULL;
if (mac->ULbwp[0]->bwp_Dedicated->pusch_Config->choice.setup->pusch_TimeDomainAllocationList) {
pusch_TimeDomainAllocationList = mac->ULbwp[0]->bwp_Dedicated->pusch_Config->choice.setup->pusch_TimeDomainAllocationList->choice.setup;
}
else if (mac->ULbwp[0]->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList) {
pusch_TimeDomainAllocationList = mac->ULbwp[0]->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList;
}
if (pusch_TimeDomainAllocationList) {
if (time_domain_ind >= pusch_TimeDomainAllocationList->list.count) {
LOG_E(MAC, "time_domain_ind %d >= pusch->TimeDomainAllocationList->list.count %d\n",
time_domain_ind, pusch_TimeDomainAllocationList->list.count);
pusch_config_pdu->start_symbol_index=0;
pusch_config_pdu->nr_of_symbols=0;
return -1;
}
int startSymbolAndLength = pusch_TimeDomainAllocationList->list.array[time_domain_ind]->startSymbolAndLength;
int S,L;
SLIV2SL(startSymbolAndLength,&S,&L);
pusch_config_pdu->start_symbol_index=S;
pusch_config_pdu->nr_of_symbols=L;
}
else {
// k_offset = table_6_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][0];
sliv_S = table_6_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][1];
sliv_L = table_6_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][2];
// k_offset = table_6_1_2_1_1_3_time_dom_res_alloc_A_extCP[nr_pdci_info_extracted->time_dom_resource_assignment][0];
// sliv_S = table_6_1_2_1_1_3_time_dom_res_alloc_A_extCP[nr_pdci_info_extracted->time_dom_resource_assignment][1];
// sliv_L = table_6_1_2_1_1_3_time_dom_res_alloc_A_extCP[nr_pdci_info_extracted->time_dom_resource_assignment][2];
pusch_config_pdu->nr_of_symbols = sliv_L;
pusch_config_pdu->start_symbol_index = sliv_S;
}
}
return 0;
}
int nr_ue_process_dci_indication_pdu(module_id_t module_id,int cc_id, int gNB_index, frame_t frame, int slot, fapi_nr_dci_indication_pdu_t *dci) {
NR_UE_MAC_INST_t *mac = get_mac_inst(module_id);
LOG_D(MAC,"Received dci indication (rnti %x,dci format %d,n_CCE %d,payloadSize %d,payload %llx)\n",
dci->rnti,dci->dci_format,dci->n_CCE,dci->payloadSize,*(unsigned long long*)dci->payloadBits);
int dci_format = nr_extract_dci_info(mac,dci->dci_format,dci->payloadSize,dci->rnti,(uint64_t *)dci->payloadBits,def_dci_pdu_rel15);
return (nr_ue_process_dci(module_id, cc_id, gNB_index, frame, slot, def_dci_pdu_rel15, dci->rnti, dci_format));
}
int8_t nr_ue_process_dci(module_id_t module_id, int cc_id, uint8_t gNB_index, frame_t frame, int slot, dci_pdu_rel15_t *dci, uint16_t rnti, uint32_t dci_format){
int mu = 0;
long k2 = 0;
int pucch_res_set_cnt = 0, valid = 0;
uint16_t frame_tx = 0, slot_tx = 0;
bool valid_ptrs_setup = 0;
NR_UE_MAC_INST_t *mac = get_mac_inst(module_id);
RA_config_t *ra = &mac->ra;
NR_BWP_Id_t bwp_id = mac->UL_BWP_Id;
fapi_nr_dl_config_request_t *dl_config = &mac->dl_config_request;
fapi_nr_ul_config_request_t *ul_config = NULL;
//const uint16_t n_RB_DLBWP = dl_config->dl_config_list[dl_config->number_pdus].dci_config_pdu.dci_config_rel15.N_RB_BWP; //make sure this has been set
AssertFatal(mac->DLbwp[0]!=NULL,"DLbwp[0] should not be zero here!\n");
AssertFatal(mac->ULbwp[0]!=NULL,"DLbwp[0] should not be zero here!\n");
const uint16_t n_RB_DLBWP = (ra->ra_state == WAIT_RAR) ? NRRIV2BW(mac->scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE) : NRRIV2BW(mac->DLbwp[0]->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
const uint16_t n_RB_ULBWP = NRRIV2BW(mac->ULbwp[0]->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
LOG_D(MAC,"nr_ue_process_dci at MAC layer with dci_format=%d (DL BWP %d, UL BWP %d)\n",dci_format,n_RB_DLBWP,n_RB_ULBWP);
NR_PDSCH_Config_t *pdsch_config=mac->DLbwp[0]->bwp_Dedicated->pdsch_Config->choice.setup;
NR_PUSCH_Config_t *pusch_config=mac->ULbwp[0]->bwp_Dedicated->pusch_Config->choice.setup;
switch(dci_format){
case NR_UL_DCI_FORMAT_0_0:
/*
* with CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI
* 0 IDENTIFIER_DCI_FORMATS:
* 10 FREQ_DOM_RESOURCE_ASSIGNMENT_UL: PUSCH hopping with resource allocation type 1 not considered
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 6.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
* 17 FREQ_HOPPING_FLAG: 0 bit if only resource allocation type 0
* 24 MCS:
* 25 NDI:
* 26 RV:
* 27 HARQ_PROCESS_NUMBER:
* 32 TPC_PUSCH:
* 49 PADDING_NR_DCI: (Note 2) If DCI format 0_0 is monitored in common search space
* 50 SUL_IND_0_0:
*/
// Calculate the slot in which ULSCH should be scheduled. This is current slot + K2,
// where K2 is the offset between the slot in which UL DCI is received and the slot
// in which ULSCH should be scheduled. K2 is configured in RRC configuration.
// Get the numerology to calculate the Tx frame and slot
mu = mac->ULbwp[0]->bwp_Common->genericParameters.subcarrierSpacing;
// Get slot offset K2 which will be used to calculate TX slot
k2 = get_k2(mac, dci->time_domain_assignment.val);
if (k2 < 0) // This can happen when a false DCI is received
return -1;
// Calculate TX slot and frame
slot_tx = (slot + k2) % nr_slots_per_frame[mu];
frame_tx = ((slot + k2) > nr_slots_per_frame[mu]) ? (frame + 1) % 1024 : frame;
// Get UL config request corresponding slot_tx
ul_config = get_ul_config_request(mac, slot_tx);
//AssertFatal(ul_config != NULL, "nr_ue_process_dci(): ul_config is NULL\n");
if (!ul_config) {
LOG_W(MAC, "nr_ue_process_dci(): ul_config request is NULL. Probably due to unexpected UL DCI in frame.slot %d.%d. Ignoring DCI!\n",frame,slot);
return -1;
}
ul_config->ul_config_list[ul_config->number_pdus].pdu_type = FAPI_NR_UL_CONFIG_TYPE_PUSCH;
ul_config->ul_config_list[ul_config->number_pdus].pusch_config_pdu.rnti = rnti;
nfapi_nr_ue_pusch_pdu_t *pusch_config_pdu_0_0 = &ul_config->ul_config_list[ul_config->number_pdus].pusch_config_pdu;
/* IDENTIFIER_DCI_FORMATS */
/* FREQ_DOM_RESOURCE_ASSIGNMENT_UL */
if (nr_ue_process_dci_freq_dom_resource_assignment(pusch_config_pdu_0_0,NULL,n_RB_ULBWP,0,dci->frequency_domain_assignment.val) < 0)
return -1;
/* TIME_DOM_RESOURCE_ASSIGNMENT */
if (nr_ue_process_dci_time_dom_resource_assignment(mac,pusch_config_pdu_0_0,NULL,dci->time_domain_assignment.val) < 0)
return -1;
LOG_D(MAC, "In %s: received UL grant (rb_start %d, rb_size %d, start_symbol_index %d, nr_of_symbols %d) \n",
__FUNCTION__,
pusch_config_pdu_0_0->rb_start,
pusch_config_pdu_0_0->rb_size,
pusch_config_pdu_0_0->start_symbol_index,
pusch_config_pdu_0_0->nr_of_symbols);
if (ra->RA_active && mac->crnti){
nr_ra_succeeded(module_id, frame, slot);
}
/* FREQ_HOPPING_FLAG */
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.resource_allocation != 0) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.frequency_hopping !=0))
pusch_config_pdu_0_0->frequency_hopping = dci->frequency_hopping_flag.val;
/* MCS */
pusch_config_pdu_0_0->mcs_index = dci->mcs;
/* MCS TABLE */
if (mac->scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg3_transformPrecoder == NULL)
pusch_config_pdu_0_0->transform_precoding = 1;
else
pusch_config_pdu_0_0->transform_precoding = 0;
if (pusch_config_pdu_0_0->transform_precoding == transform_precoder_disabled)
pusch_config_pdu_0_0->mcs_table = get_pusch_mcs_table(pusch_config->mcs_Table, 0,
dci_format, NR_RNTI_TC, NR_SearchSpace__searchSpaceType_PR_common, false);
else
pusch_config_pdu_0_0->mcs_table = get_pusch_mcs_table(pusch_config->mcs_TableTransformPrecoder, 1,
dci_format, NR_RNTI_TC, NR_SearchSpace__searchSpaceType_PR_common, false);
pusch_config_pdu_0_0->target_code_rate = nr_get_code_rate_ul(pusch_config_pdu_0_0->mcs_index, pusch_config_pdu_0_0->mcs_table);
pusch_config_pdu_0_0->qam_mod_order = nr_get_Qm_ul(pusch_config_pdu_0_0->mcs_index, pusch_config_pdu_0_0->mcs_table);
if (pusch_config_pdu_0_0->target_code_rate == 0 || pusch_config_pdu_0_0->qam_mod_order == 0) {
LOG_W(MAC, "Invalid code rate or Mod order, likely due to unexpected UL DCI. Ignoring DCI! \n");
return -1;
}
/* NDI */
pusch_config_pdu_0_0->pusch_data.new_data_indicator = dci->ndi;
/* RV */
pusch_config_pdu_0_0->pusch_data.rv_index = dci->rv;
/* HARQ_PROCESS_NUMBER */
pusch_config_pdu_0_0->pusch_data.harq_process_id = dci->harq_pid;
/* TPC_PUSCH */
// according to TS 38.213 Table Table 7.1.1-1
if (dci->tpc == 0) {
pusch_config_pdu_0_0->absolute_delta_PUSCH = -4;
}
if (dci->tpc == 1) {
pusch_config_pdu_0_0->absolute_delta_PUSCH = -1;
}
if (dci->tpc == 2) {
pusch_config_pdu_0_0->absolute_delta_PUSCH = 1;
}
if (dci->tpc == 3) {
pusch_config_pdu_0_0->absolute_delta_PUSCH = 4;
}
/* SUL_IND_0_0 */ // To be implemented, FIXME!!!
ul_config->slot = slot_tx;
ul_config->sfn = frame_tx;
ul_config->number_pdus = ul_config->number_pdus + 1;
LOG_D(MAC, "nr_ue_process_dci(): Calculated frame and slot for pusch Tx: %d.%d, number of pdus %d\n", ul_config->sfn, ul_config->slot, ul_config->number_pdus);
break;
case NR_UL_DCI_FORMAT_0_1:
/*
* with CRC scrambled by C-RNTI or CS-RNTI or SP-CSI-RNTI or new-RNTI
* 0 IDENTIFIER_DCI_FORMATS:
* 1 CARRIER_IND
* 2 SUL_IND_0_1
* 7 BANDWIDTH_PART_IND
* 10 FREQ_DOM_RESOURCE_ASSIGNMENT_UL: PUSCH hopping with resource allocation type 1 not considered
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 6.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
* 17 FREQ_HOPPING_FLAG: 0 bit if only resource allocation type 0
* 24 MCS:
* 25 NDI:
* 26 RV:
* 27 HARQ_PROCESS_NUMBER:
* 29 FIRST_DAI
* 30 SECOND_DAI
* 32 TPC_PUSCH:
* 36 SRS_RESOURCE_IND:
* 37 PRECOD_NBR_LAYERS:
* 38 ANTENNA_PORTS:
* 40 SRS_REQUEST:
* 42 CSI_REQUEST:
* 43 CBGTI
* 45 PTRS_DMRS
* 46 BETA_OFFSET_IND
* 47 DMRS_SEQ_INI
* 48 UL_SCH_IND
* 49 PADDING_NR_DCI: (Note 2) If DCI format 0_0 is monitored in common search space
*/
// Calculate the slot in which ULSCH should be scheduled. This is current slot + K2,
// where K2 is the offset between the slot in which UL DCI is received and the slot
// in which ULSCH should be scheduled. K2 is configured in RRC configuration.
// Get the numerology to calculate the Tx frame and slot
mu = mac->ULbwp[0]->bwp_Common->genericParameters.subcarrierSpacing;
// Get slot offset K2 which will be used to calculate TX slot
k2 = get_k2(mac, dci->time_domain_assignment.val);
if (k2 < 0) // This can happen when a false DCI is received
return -1;
// Calculate TX slot and frame
slot_tx = (slot + k2) % nr_slots_per_frame[mu];
frame_tx = ((slot + k2) > nr_slots_per_frame[mu]) ? (frame + 1) % 1024 : frame;
// Get UL config request corresponding slot_tx
ul_config = get_ul_config_request(mac, slot_tx);
//AssertFatal(ul_config != NULL, "nr_ue_process_dci(): ul_config is NULL\n");
if (!ul_config) {
LOG_W(MAC, "nr_ue_process_dci(): ul_config request is NULL. Probably due to unexpected UL DCI in frame.slot %d.%d. Ignoring DCI!\n",frame,slot);
return -1;
}
ul_config->ul_config_list[ul_config->number_pdus].pdu_type = FAPI_NR_UL_CONFIG_TYPE_PUSCH;
ul_config->ul_config_list[ul_config->number_pdus].pusch_config_pdu.rnti = rnti;
nfapi_nr_ue_pusch_pdu_t *pusch_config_pdu_0_1 = &ul_config->ul_config_list[ul_config->number_pdus].pusch_config_pdu;
/* IDENTIFIER_DCI_FORMATS */
/* CARRIER_IND */
/* SUL_IND_0_1 */
/* BANDWIDTH_PART_IND */
config_bwp_ue(mac, &dci->bwp_indicator.val, &dci_format);
//pusch_config_pdu_0_1->bandwidth_part_ind = dci->bwp_indicator.val;
/* FREQ_DOM_RESOURCE_ASSIGNMENT_UL */
if (nr_ue_process_dci_freq_dom_resource_assignment(pusch_config_pdu_0_1,NULL,n_RB_ULBWP,0,dci->frequency_domain_assignment.val) < 0)
return -1;
/* TIME_DOM_RESOURCE_ASSIGNMENT */
if (nr_ue_process_dci_time_dom_resource_assignment(mac,pusch_config_pdu_0_1,NULL,dci->time_domain_assignment.val) < 0)
return -1;
LOG_D(MAC, "In %s: received UL grant (rb_start %d, rb_size %d, start_symbol_index %d, nr_of_symbols %d) \n",
__FUNCTION__,
pusch_config_pdu_0_1->rb_start,
pusch_config_pdu_0_1->rb_size,
pusch_config_pdu_0_1->start_symbol_index,
pusch_config_pdu_0_1->nr_of_symbols);
if (ra->RA_active && mac->crnti){
nr_ra_succeeded(module_id, frame, slot);
}
/* FREQ_HOPPING_FLAG */
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.resource_allocation != 0) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.frequency_hopping !=0))
pusch_config_pdu_0_1->frequency_hopping = dci->frequency_hopping_flag.val;
/* MCS */
pusch_config_pdu_0_1->mcs_index = dci->mcs;
/* MCS TABLE */
if (pusch_config->transformPrecoder == NULL) {
if (mac->scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg3_transformPrecoder == NULL)
pusch_config_pdu_0_1->transform_precoding = 1;
else
pusch_config_pdu_0_1->transform_precoding = 0;
}
else
pusch_config_pdu_0_1->transform_precoding = *pusch_config->transformPrecoder;
if (pusch_config_pdu_0_1->transform_precoding == transform_precoder_disabled)
pusch_config_pdu_0_1->mcs_table = get_pusch_mcs_table(pusch_config->mcs_Table, 0,
dci_format, NR_RNTI_C, NR_SearchSpace__searchSpaceType_PR_ue_Specific, false);
else
pusch_config_pdu_0_1->mcs_table = get_pusch_mcs_table(pusch_config->mcs_TableTransformPrecoder, 1,
dci_format, NR_RNTI_C, NR_SearchSpace__searchSpaceType_PR_ue_Specific, false);
pusch_config_pdu_0_1->target_code_rate = nr_get_code_rate_ul(pusch_config_pdu_0_1->mcs_index, pusch_config_pdu_0_1->mcs_table);
pusch_config_pdu_0_1->qam_mod_order = nr_get_Qm_ul(pusch_config_pdu_0_1->mcs_index, pusch_config_pdu_0_1->mcs_table);
if (pusch_config_pdu_0_1->target_code_rate == 0 || pusch_config_pdu_0_1->qam_mod_order == 0) {
LOG_W(MAC, "Invalid code rate or Mod order, likely due to unexpected UL DCI. Ignoring DCI! \n");
return -1;
}
/* NDI */
pusch_config_pdu_0_1->pusch_data.new_data_indicator = dci->ndi;
/* RV */
pusch_config_pdu_0_1->pusch_data.rv_index = dci->rv;
/* HARQ_PROCESS_NUMBER */
pusch_config_pdu_0_1->pusch_data.harq_process_id = dci->harq_pid;
/* FIRST_DAI */ //To be implemented, FIXME!!!
/* SECOND_DAI */ //To be implemented, FIXME!!!
/* TPC_PUSCH */
// according to TS 38.213 Table Table 7.1.1-1
if (dci->tpc == 0) {
pusch_config_pdu_0_1->absolute_delta_PUSCH = -4;
}
if (dci->tpc == 1) {
pusch_config_pdu_0_1->absolute_delta_PUSCH = -1;
}
if (dci->tpc == 2) {
pusch_config_pdu_0_1->absolute_delta_PUSCH = 1;
}
if (dci->tpc == 3) {
pusch_config_pdu_0_1->absolute_delta_PUSCH = 4;
}
/* SRS_RESOURCE_IND */
//FIXME!!
/* PRECOD_NBR_LAYERS */
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.tx_config == tx_config_nonCodebook));
// 0 bits if the higher layer parameter txConfig = nonCodeBook
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.tx_config == tx_config_codebook)){
uint8_t n_antenna_port = 0; //FIXME!!!
if (n_antenna_port == 1); // 1 antenna port and the higher layer parameter txConfig = codebook 0 bits
if (n_antenna_port == 4){ // 4 antenna port and the higher layer parameter txConfig = codebook
// Table 7.3.1.1.2-2: transformPrecoder=disabled and maxRank = 2 or 3 or 4
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_disabled)
&& ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.max_rank == 2) ||
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.max_rank == 3) ||
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.max_rank == 4))){
if (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.codebook_subset == codebook_subset_fullyAndPartialAndNonCoherent) {
pusch_config_pdu_0_1->nrOfLayers = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][0];
pusch_config_pdu_0_1->transform_precoding = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][1];
}
if (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.codebook_subset == codebook_subset_partialAndNonCoherent){
pusch_config_pdu_0_1->nrOfLayers = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][2];
pusch_config_pdu_0_1->transform_precoding = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][3];
}
if (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.codebook_subset == codebook_subset_nonCoherent){
pusch_config_pdu_0_1->nrOfLayers = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][4];
pusch_config_pdu_0_1->transform_precoding = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][5];
}
}
// Table 7.3.1.1.2-3: transformPrecoder= enabled, or transformPrecoder=disabled and maxRank = 1
if (((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_enabled)
|| (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_disabled))
&& (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.max_rank == 1)){
if (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.codebook_subset == codebook_subset_fullyAndPartialAndNonCoherent) {
pusch_config_pdu_0_1->nrOfLayers = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][6];
pusch_config_pdu_0_1->transform_precoding = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][7];
}
if (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.codebook_subset == codebook_subset_partialAndNonCoherent){
pusch_config_pdu_0_1->nrOfLayers = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][8];
pusch_config_pdu_0_1->transform_precoding = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][9];
}
if (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.codebook_subset == codebook_subset_nonCoherent){
pusch_config_pdu_0_1->nrOfLayers = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][10];
pusch_config_pdu_0_1->transform_precoding = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][11];
}
}
}
if (n_antenna_port == 4){ // 2 antenna port and the higher layer parameter txConfig = codebook
// Table 7.3.1.1.2-4: transformPrecoder=disabled and maxRank = 2
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_disabled)
&& (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.max_rank == 2)){
if (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.codebook_subset == codebook_subset_fullyAndPartialAndNonCoherent) {
pusch_config_pdu_0_1->nrOfLayers = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][12];
pusch_config_pdu_0_1->transform_precoding = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][13];
}
if (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.codebook_subset == codebook_subset_nonCoherent){
pusch_config_pdu_0_1->nrOfLayers = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][14];
pusch_config_pdu_0_1->transform_precoding = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][15];
}
}
// Table 7.3.1.1.2-5: transformPrecoder= enabled, or transformPrecoder= disabled and maxRank = 1
if (((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_enabled)
|| (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_disabled))
&& (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.max_rank == 1)){
if (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.codebook_subset == codebook_subset_fullyAndPartialAndNonCoherent) {
pusch_config_pdu_0_1->nrOfLayers = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][16];
pusch_config_pdu_0_1->transform_precoding = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][17];
}
if (mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.codebook_subset == codebook_subset_nonCoherent){
pusch_config_pdu_0_1->nrOfLayers = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][18];
pusch_config_pdu_0_1->transform_precoding = table_7_3_1_1_2_2_3_4_5[dci->precoding_information.val][19];
}
}
}
}
/* ANTENNA_PORTS */
uint8_t rank=0; // We need to initialize rank FIXME!!!
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_enabled) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.dmrs_type == 1) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.max_length == 1)) { // tables 7.3.1.1.2-6
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = 2; //TBC
pusch_config_pdu_0_1->dmrs_ports = dci->antenna_ports.val; //TBC
}
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_enabled) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.dmrs_type == 1) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.max_length == 2)) { // tables 7.3.1.1.2-7
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = 2; //TBC
pusch_config_pdu_0_1->dmrs_ports = (dci->antenna_ports.val > 3)?(dci->antenna_ports.val-4):(dci->antenna_ports.val); //TBC
//pusch_config_pdu_0_1->n_front_load_symb = (dci->antenna_ports > 3)?2:1; //FIXME
}
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_disabled) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.dmrs_type == 1) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.max_length == 1)) { // tables 7.3.1.1.2-8/9/10/11
if (rank == 1){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = (dci->antenna_ports.val > 1)?2:1; //TBC
pusch_config_pdu_0_1->dmrs_ports = (dci->antenna_ports.val > 1)?(dci->antenna_ports.val-2):(dci->antenna_ports.val); //TBC
}
if (rank == 2){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = (dci->antenna_ports.val > 0)?2:1; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = (dci->antenna_ports > 1)?(dci->antenna_ports > 2 ?0:2):0;
//pusch_config_pdu_0_1->dmrs_ports[1] = (dci->antenna_ports > 1)?(dci->antenna_ports > 2 ?2:3):1;
}
if (rank == 3){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = 2; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = 0;
//pusch_config_pdu_0_1->dmrs_ports[1] = 1;
//pusch_config_pdu_0_1->dmrs_ports[2] = 2;
}
if (rank == 4){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = 2; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = 0;
//pusch_config_pdu_0_1->dmrs_ports[1] = 1;
//pusch_config_pdu_0_1->dmrs_ports[2] = 2;
//pusch_config_pdu_0_1->dmrs_ports[3] = 3;
}
}
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_disabled) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.dmrs_type == 1) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.max_length == 2)) { // tables 7.3.1.1.2-12/13/14/15
if (rank == 1){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = (dci->antenna_ports.val > 1)?2:1; //TBC
pusch_config_pdu_0_1->dmrs_ports = (dci->antenna_ports.val > 1)?(dci->antenna_ports.val > 5 ?(dci->antenna_ports.val-6):(dci->antenna_ports.val-2)):dci->antenna_ports.val; //TBC
//pusch_config_pdu_0_1->n_front_load_symb = (dci->antenna_ports.val > 6)?2:1; //FIXME
}
if (rank == 2){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = (dci->antenna_ports.val > 0)?2:1; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = table_7_3_1_1_2_13[dci->antenna_ports.val][1];
//pusch_config_pdu_0_1->dmrs_ports[1] = table_7_3_1_1_2_13[dci->antenna_ports.val][2];
//pusch_config_pdu_0_1->n_front_load_symb = (dci->antenna_ports.val > 3)?2:1; // FIXME
}
if (rank == 3){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = 2; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = table_7_3_1_1_2_14[dci->antenna_ports.val][1];
//pusch_config_pdu_0_1->dmrs_ports[1] = table_7_3_1_1_2_14[dci->antenna_ports.val][2];
//pusch_config_pdu_0_1->dmrs_ports[2] = table_7_3_1_1_2_14[dci->antenna_ports.val][3];
//pusch_config_pdu_0_1->n_front_load_symb = (dci->antenna_ports.val > 1)?2:1; //FIXME
}
if (rank == 4){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = 2; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = table_7_3_1_1_2_15[dci->antenna_ports.val][1];
//pusch_config_pdu_0_1->dmrs_ports[1] = table_7_3_1_1_2_15[dci->antenna_ports.val][2];
//pusch_config_pdu_0_1->dmrs_ports[2] = table_7_3_1_1_2_15[dci->antenna_ports.val][3];
//pusch_config_pdu_0_1->dmrs_ports[3] = table_7_3_1_1_2_15[dci->antenna_ports.val][4];
//pusch_config_pdu_0_1->n_front_load_symb = (dci->antenna_ports.val > 1)?2:1; //FIXME
}
}
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_disabled) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.dmrs_type == 2) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.max_length == 1)) { // tables 7.3.1.1.2-16/17/18/19
if (rank == 1){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = (dci->antenna_ports.val > 1)?((dci->antenna_ports.val > 5)?3:2):1; //TBC
pusch_config_pdu_0_1->dmrs_ports = (dci->antenna_ports.val > 1)?(dci->antenna_ports.val > 5 ?(dci->antenna_ports.val-6):(dci->antenna_ports.val-2)):dci->antenna_ports.val; //TBC
}
if (rank == 2){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = (dci->antenna_ports.val > 0)?((dci->antenna_ports.val > 2)?3:2):1; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = table_7_3_1_1_2_17[dci->antenna_ports.val][1];
//pusch_config_pdu_0_1->dmrs_ports[1] = table_7_3_1_1_2_17[dci->antenna_ports.val][2];
}
if (rank == 3){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = (dci->antenna_ports.val > 0)?3:2; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = table_7_3_1_1_2_18[dci->antenna_ports.val][1];
//pusch_config_pdu_0_1->dmrs_ports[1] = table_7_3_1_1_2_18[dci->antenna_ports.val][2];
//pusch_config_pdu_0_1->dmrs_ports[2] = table_7_3_1_1_2_18[dci->antenna_ports.val][3];
}
if (rank == 4){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = dci->antenna_ports.val + 2; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = 0;
//pusch_config_pdu_0_1->dmrs_ports[1] = 1;
//pusch_config_pdu_0_1->dmrs_ports[2] = 2;
//pusch_config_pdu_0_1->dmrs_ports[3] = 3;
}
}
if ((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_disabled) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.dmrs_type == 2) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.max_length == 2)) { // tables 7.3.1.1.2-20/21/22/23
if (rank == 1){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = table_7_3_1_1_2_20[dci->antenna_ports.val][0]; //TBC
pusch_config_pdu_0_1->dmrs_ports = table_7_3_1_1_2_20[dci->antenna_ports.val][1]; //TBC
//pusch_config_pdu_0_1->n_front_load_symb = table_7_3_1_1_2_20[dci->antenna_ports.val][2]; //FIXME
}
if (rank == 2){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = table_7_3_1_1_2_21[dci->antenna_ports.val][0]; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = table_7_3_1_1_2_21[dci->antenna_ports.val][1];
//pusch_config_pdu_0_1->dmrs_ports[1] = table_7_3_1_1_2_21[dci->antenna_ports.val][2];
//pusch_config_pdu_0_1->n_front_load_symb = table_7_3_1_1_2_21[dci->antenna_ports.val][3]; //FIXME
}
if (rank == 3){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = table_7_3_1_1_2_22[dci->antenna_ports.val][0]; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = table_7_3_1_1_2_22[dci->antenna_ports.val][1];
//pusch_config_pdu_0_1->dmrs_ports[1] = table_7_3_1_1_2_22[dci->antenna_ports.val][2];
//pusch_config_pdu_0_1->dmrs_ports[2] = table_7_3_1_1_2_22[dci->antenna_ports.val][3];
//pusch_config_pdu_0_1->n_front_load_symb = table_7_3_1_1_2_22[dci->antenna_ports.val][4]; //FIXME
}
if (rank == 4){
pusch_config_pdu_0_1->num_dmrs_cdm_grps_no_data = table_7_3_1_1_2_23[dci->antenna_ports.val][0]; //TBC
pusch_config_pdu_0_1->dmrs_ports = 0; //FIXME
//pusch_config_pdu_0_1->dmrs_ports[0] = table_7_3_1_1_2_23[dci->antenna_ports.val][1];
//pusch_config_pdu_0_1->dmrs_ports[1] = table_7_3_1_1_2_23[dci->antenna_ports.val][2];
//pusch_config_pdu_0_1->dmrs_ports[2] = table_7_3_1_1_2_23[dci->antenna_ports.val][3];
//pusch_config_pdu_0_1->dmrs_ports[3] = table_7_3_1_1_2_23[dci->antenna_ports.val][4];
//pusch_config_pdu_0_1->n_front_load_symb = table_7_3_1_1_2_23[dci->antenna_ports.val][5]; //FIXME
}
}
/* SRS_REQUEST */
// if SUL is supported in the cell, there is an additional bit in thsi field and the value of this bit represents table 7.1.1.1-1 TS 38.212 FIXME!!!
//pusch_config_pdu_0_1->srs_config.aperiodicSRS_ResourceTrigger = (dci->srs_request.val & 0x11); // as per Table 7.3.1.1.2-24 TS 38.212 //FIXME
/* CSI_REQUEST */
//pusch_config_pdu_0_1->csi_reportTriggerSize = dci->csi_request.val; //FIXME
/* CBGTI */
//pusch_config_pdu_0_1->maxCodeBlockGroupsPerTransportBlock = dci->cbgti.val; //FIXME
/* PTRS_DMRS */
if (((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_disabled) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.dmrs_ul_for_pusch_mapping_type_a.ptrs_uplink_config == 0)) ||
((mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.transform_precoder == transform_precoder_enabled) &&
(mac->phy_config.config_req.ul_bwp_dedicated.pusch_config_dedicated.max_rank == 1))){
} else {
//pusch_config_pdu_0_1->ptrs_dmrs_association_port = dci->ptrs_dmrs_association.val; //FIXME
}
/* BETA_OFFSET_IND */
// Table 9.3-3 in [5, TS 38.213]
//pusch_config_pdu_0_1->beta_offset_ind = dci->beta_offset_indicator.val; //FIXME
/* DMRS_SEQ_INI */
// FIXME!!
/* UL_SCH_IND */
// A value of "1" indicates UL-SCH shall be transmitted on the PUSCH and
// a value of "0" indicates UL-SCH shall not be transmitted on the PUSCH
ul_config->slot = slot_tx;
ul_config->sfn = frame_tx;
ul_config->number_pdus = ul_config->number_pdus + 1;
LOG_D(MAC, "nr_ue_process_dci(): Calculated frame and slot for pusch Tx: %d.%d, number of pdus %d\n", ul_config->sfn, ul_config->slot, ul_config->number_pdus);
break;
case NR_DL_DCI_FORMAT_1_0:
/*
* with CRC scrambled by C-RNTI or CS-RNTI or new-RNTI
* 0 IDENTIFIER_DCI_FORMATS:
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
* 24 MCS:
* 25 NDI:
* 26 RV:
* 27 HARQ_PROCESS_NUMBER:
* 28 DAI_: For format1_1: 4 if more than one serving cell are configured in the DL and the higher layer parameter HARQ-ACK-codebook=dynamic, where the 2 MSB bits are the counter DAI and the 2 LSB bits are the total DAI
* 33 TPC_PUCCH:
* 34 PUCCH_RESOURCE_IND:
* 35 PDSCH_TO_HARQ_FEEDBACK_TIME_IND:
* 55 RESERVED_NR_DCI
* with CRC scrambled by P-RNTI
* 8 SHORT_MESSAGE_IND
* 9 SHORT_MESSAGES
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
* 24 MCS:
* 31 TB_SCALING
* 55 RESERVED_NR_DCI
* with CRC scrambled by SI-RNTI
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
* 24 MCS:
* 26 RV:
* 55 RESERVED_NR_DCI
* with CRC scrambled by RA-RNTI
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
* 24 MCS:
* 31 TB_SCALING
* 55 RESERVED_NR_DCI
* with CRC scrambled by TC-RNTI
* 0 IDENTIFIER_DCI_FORMATS:
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
* 24 MCS:
* 25 NDI:
* 26 RV:
* 27 HARQ_PROCESS_NUMBER:
* 28 DAI_: For format1_1: 4 if more than one serving cell are configured in the DL and the higher layer parameter HARQ-ACK-codebook=dynamic, where the 2 MSB bits are the counter DAI and the 2 LSB bits are the total DAI
* 33 TPC_PUCCH:
*/
dl_config->dl_config_list[dl_config->number_pdus].dlsch_config_pdu.rnti = rnti;
//fapi_nr_dl_config_dlsch_pdu_rel15_t dlsch_config_pdu_1_0 = dl_config->dl_config_list[dl_config->number_pdus].dlsch_config_pdu.dlsch_config_rel15;
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config_pdu_1_0 = &dl_config->dl_config_list[dl_config->number_pdus].dlsch_config_pdu.dlsch_config_rel15;
dlsch_config_pdu_1_0->BWPSize = NRRIV2BW(mac->DLbwp[0]->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
dlsch_config_pdu_1_0->BWPStart = NRRIV2PRBOFFSET(mac->DLbwp[0]->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
dlsch_config_pdu_1_0->SubcarrierSpacing = mac->DLbwp[0]->bwp_Common->genericParameters.subcarrierSpacing;
/* IDENTIFIER_DCI_FORMATS */
/* FREQ_DOM_RESOURCE_ASSIGNMENT_DL */
if (nr_ue_process_dci_freq_dom_resource_assignment(NULL,dlsch_config_pdu_1_0,0,n_RB_DLBWP,dci->frequency_domain_assignment.val) < 0)
return -1;
/* TIME_DOM_RESOURCE_ASSIGNMENT */
if (nr_ue_process_dci_time_dom_resource_assignment(mac,NULL,dlsch_config_pdu_1_0,dci->time_domain_assignment.val) < 0)
return -1;
/* dmrs symbol positions*/
dlsch_config_pdu_1_0->dlDmrsSymbPos = fill_dmrs_mask(pdsch_config,
mac->scc->dmrs_TypeA_Position,
dlsch_config_pdu_1_0->number_symbols);
dlsch_config_pdu_1_0->dmrsConfigType = mac->DLbwp[0]->bwp_Dedicated->pdsch_Config->choice.setup->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->dmrs_Type == NULL ? 0 : 1;
/* number of DM-RS CDM groups without data according to subclause 5.1.6.2 of 3GPP TS 38.214 version 15.9.0 Release 15 */
if (dlsch_config_pdu_1_0->number_symbols == 2)
dlsch_config_pdu_1_0->n_dmrs_cdm_groups = 1;
else
dlsch_config_pdu_1_0->n_dmrs_cdm_groups = 2;
/* VRB_TO_PRB_MAPPING */
dlsch_config_pdu_1_0->vrb_to_prb_mapping = (dci->vrb_to_prb_mapping.val == 0) ? vrb_to_prb_mapping_non_interleaved:vrb_to_prb_mapping_interleaved;
/* MCS TABLE INDEX */
dlsch_config_pdu_1_0->mcs_table = (pdsch_config->mcs_Table) ? (*pdsch_config->mcs_Table + 1) : 0;
/* MCS */
dlsch_config_pdu_1_0->mcs = dci->mcs;
// Basic sanity check for MCS value to check for a false or erroneous DCI
if (dlsch_config_pdu_1_0->mcs > 28) {
LOG_W(MAC, "MCS value % d out of bounds! Possibly due to false DCI. Ignoring DCI!!\n", dlsch_config_pdu_1_0->mcs);
return -1;
}
/* NDI (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI)*/
dlsch_config_pdu_1_0->ndi = dci->ndi;
/* RV (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI)*/
dlsch_config_pdu_1_0->rv = dci->rv;
/* HARQ_PROCESS_NUMBER (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI)*/
dlsch_config_pdu_1_0->harq_process_nbr = dci->harq_pid;
/* DAI (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI)*/
dlsch_config_pdu_1_0->dai = dci->dai[0].val;
/* TB_SCALING (only if CRC scrambled by P-RNTI or RA-RNTI) */
// according to TS 38.214 Table 5.1.3.2-3
if (dci->tb_scaling == 0) dlsch_config_pdu_1_0->scaling_factor_S = 1;
if (dci->tb_scaling == 1) dlsch_config_pdu_1_0->scaling_factor_S = 0.5;
if (dci->tb_scaling == 2) dlsch_config_pdu_1_0->scaling_factor_S = 0.25;
if (dci->tb_scaling == 3) dlsch_config_pdu_1_0->scaling_factor_S = 0; // value not defined in table
/* TPC_PUCCH (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI)*/
// according to TS 38.213 Table 7.2.1-1
if (dci->tpc == 0) dlsch_config_pdu_1_0->accumulated_delta_PUCCH = -1;
if (dci->tpc == 1) dlsch_config_pdu_1_0->accumulated_delta_PUCCH = 0;
if (dci->tpc == 2) dlsch_config_pdu_1_0->accumulated_delta_PUCCH = 1;
if (dci->tpc == 3) dlsch_config_pdu_1_0->accumulated_delta_PUCCH = 3;
/* PUCCH_RESOURCE_IND (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI)*/
//if (dci->pucch_resource_indicator == 0) dlsch_config_pdu_1_0->pucch_resource_id = 1; //pucch-ResourceId obtained from the 1st value of resourceList FIXME!!!
//if (dci->pucch_resource_indicator == 1) dlsch_config_pdu_1_0->pucch_resource_id = 2; //pucch-ResourceId obtained from the 2nd value of resourceList FIXME!!
//if (dci->pucch_resource_indicator == 2) dlsch_config_pdu_1_0->pucch_resource_id = 3; //pucch-ResourceId obtained from the 3rd value of resourceList FIXME!!
//if (dci->pucch_resource_indicator == 3) dlsch_config_pdu_1_0->pucch_resource_id = 4; //pucch-ResourceId obtained from the 4th value of resourceList FIXME!!
//if (dci->pucch_resource_indicator == 4) dlsch_config_pdu_1_0->pucch_resource_id = 5; //pucch-ResourceId obtained from the 5th value of resourceList FIXME!!
//if (dci->pucch_resource_indicator == 5) dlsch_config_pdu_1_0->pucch_resource_id = 6; //pucch-ResourceId obtained from the 6th value of resourceList FIXME!!
//if (dci->pucch_resource_indicator == 6) dlsch_config_pdu_1_0->pucch_resource_id = 7; //pucch-ResourceId obtained from the 7th value of resourceList FIXME!!
//if (dci->pucch_resource_indicator == 7) dlsch_config_pdu_1_0->pucch_resource_id = 8; //pucch-ResourceId obtained from the 8th value of resourceList FIXME!!
dlsch_config_pdu_1_0->pucch_resource_id = dci->pucch_resource_indicator;
// Sanity check for pucch_resource_indicator value received to check for false DCI.
valid = 0;
pucch_res_set_cnt = mac->ULbwp[0]->bwp_Dedicated->pucch_Config->choice.setup->resourceSetToAddModList->list.count;
for (int id = 0; id < pucch_res_set_cnt; id++) {
if (dlsch_config_pdu_1_0->pucch_resource_id < mac->ULbwp[0]->bwp_Dedicated->pucch_Config->choice.setup->resourceSetToAddModList->list.array[id]->resourceList.list.count) {
valid = 1;
break;
}
}
if (!valid) {
LOG_W(MAC, "pucch_resource_indicator value %d is out of bounds. Possibly due to false DCI. Ignoring DCI!\n", dlsch_config_pdu_1_0->pucch_resource_id);
return -1;
}
/* PDSCH_TO_HARQ_FEEDBACK_TIME_IND (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI)*/
dlsch_config_pdu_1_0->pdsch_to_harq_feedback_time_ind = dci->pdsch_to_harq_feedback_timing_indicator.val;
LOG_D(MAC,"(nr_ue_procedures.c) rnti = %x dl_config->number_pdus = %d\n",
dl_config->dl_config_list[dl_config->number_pdus].dlsch_config_pdu.rnti,
dl_config->number_pdus);
LOG_D(MAC,"(nr_ue_procedures.c) frequency_domain_resource_assignment=%d \t number_rbs=%d \t start_rb=%d\n",
dci->frequency_domain_assignment.val,
dlsch_config_pdu_1_0->number_rbs,
dlsch_config_pdu_1_0->start_rb);
LOG_D(MAC,"(nr_ue_procedures.c) time_domain_resource_assignment=%d \t number_symbols=%d \t start_symbol=%d\n",
dci->time_domain_assignment.val,
dlsch_config_pdu_1_0->number_symbols,
dlsch_config_pdu_1_0->start_symbol);
LOG_D(MAC,"(nr_ue_procedures.c) vrb_to_prb_mapping=%d \n>>> mcs=%d\n>>> ndi=%d\n>>> rv=%d\n>>> harq_process_nbr=%d\n>>> dai=%d\n>>> scaling_factor_S=%f\n>>> tpc_pucch=%d\n>>> pucch_res_ind=%d\n>>> pdsch_to_harq_feedback_time_ind=%d\n",
dlsch_config_pdu_1_0->vrb_to_prb_mapping,
dlsch_config_pdu_1_0->mcs,
dlsch_config_pdu_1_0->ndi,
dlsch_config_pdu_1_0->rv,
dlsch_config_pdu_1_0->harq_process_nbr,
dlsch_config_pdu_1_0->dai,
dlsch_config_pdu_1_0->scaling_factor_S,
dlsch_config_pdu_1_0->accumulated_delta_PUCCH,
dlsch_config_pdu_1_0->pucch_resource_id,
dlsch_config_pdu_1_0->pdsch_to_harq_feedback_time_ind);
if (ra->RA_window_cnt >= 0 && rnti == ra->ra_rnti){
dl_config->dl_config_list[dl_config->number_pdus].pdu_type = FAPI_NR_DL_CONFIG_TYPE_RA_DLSCH;
} else {
dl_config->dl_config_list[dl_config->number_pdus].pdu_type = FAPI_NR_DL_CONFIG_TYPE_DLSCH;
}
// dl_config->dl_config_list[dl_config->number_pdus].dci_config_pdu.dci_config_rel15.N_RB_BWP = n_RB_DLBWP;
LOG_D(MAC,"(nr_ue_procedures.c) pdu_type=%d\n\n",dl_config->dl_config_list[dl_config->number_pdus].pdu_type);
dl_config->number_pdus = dl_config->number_pdus + 1;
break;
case NR_DL_DCI_FORMAT_1_1:
/*
* with CRC scrambled by C-RNTI or CS-RNTI or new-RNTI
* 0 IDENTIFIER_DCI_FORMATS:
* 1 CARRIER_IND:
* 7 BANDWIDTH_PART_IND:
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
* 14 PRB_BUNDLING_SIZE_IND:
* 15 RATE_MATCHING_IND:
* 16 ZP_CSI_RS_TRIGGER:
* 18 TB1_MCS:
* 19 TB1_NDI:
* 20 TB1_RV:
* 21 TB2_MCS:
* 22 TB2_NDI:
* 23 TB2_RV:
* 27 HARQ_PROCESS_NUMBER:
* 28 DAI_: For format1_1: 4 if more than one serving cell are configured in the DL and the higher layer parameter HARQ-ACK-codebook=dynamic, where the 2 MSB bits are the counter DAI and the 2 LSB bits are the total DAI
* 33 TPC_PUCCH:
* 34 PUCCH_RESOURCE_IND:
* 35 PDSCH_TO_HARQ_FEEDBACK_TIME_IND:
* 38 ANTENNA_PORTS:
* 39 TCI:
* 40 SRS_REQUEST:
* 43 CBGTI:
* 44 CBGFI:
* 47 DMRS_SEQ_INI:
*/
dl_config->dl_config_list[dl_config->number_pdus].pdu_type = FAPI_NR_DL_CONFIG_TYPE_DLSCH;
dl_config->dl_config_list[dl_config->number_pdus].dlsch_config_pdu.rnti = rnti;
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config_pdu_1_1 = &dl_config->dl_config_list[dl_config->number_pdus].dlsch_config_pdu.dlsch_config_rel15;
/* IDENTIFIER_DCI_FORMATS */
/* CARRIER_IND */
/* BANDWIDTH_PART_IND */
// dlsch_config_pdu_1_1->bandwidth_part_ind = dci->bandwidth_part_ind;
/* FREQ_DOM_RESOURCE_ASSIGNMENT_DL */
if (nr_ue_process_dci_freq_dom_resource_assignment(NULL,dlsch_config_pdu_1_1,0,n_RB_DLBWP,dci->frequency_domain_assignment.val) < 0)
return -1;
/* TIME_DOM_RESOURCE_ASSIGNMENT */
if (nr_ue_process_dci_time_dom_resource_assignment(mac,NULL,dlsch_config_pdu_1_1,dci->time_domain_assignment.val) < 0)
return -1;
/* dmrs symbol positions*/
dlsch_config_pdu_1_1->dlDmrsSymbPos = fill_dmrs_mask(pdsch_config,
mac->scc->dmrs_TypeA_Position,
dlsch_config_pdu_1_1->number_symbols);
dlsch_config_pdu_1_1->dmrsConfigType = mac->DLbwp[0]->bwp_Dedicated->pdsch_Config->choice.setup->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->dmrs_Type == NULL ? 0 : 1;
/* TODO: fix number of DM-RS CDM groups without data according to subclause 5.1.6.2 of 3GPP TS 38.214,
using tables 7.3.1.2.2-1, 7.3.1.2.2-2, 7.3.1.2.2-3, 7.3.1.2.2-4 of 3GPP TS 38.212 */
dlsch_config_pdu_1_1->n_dmrs_cdm_groups = 1;
/* VRB_TO_PRB_MAPPING */
if (mac->phy_config.config_req.dl_bwp_dedicated.pdsch_config_dedicated.resource_allocation != 0)
dlsch_config_pdu_1_1->vrb_to_prb_mapping = (dci->vrb_to_prb_mapping.val == 0) ? vrb_to_prb_mapping_non_interleaved:vrb_to_prb_mapping_interleaved;
/* PRB_BUNDLING_SIZE_IND */
dlsch_config_pdu_1_1->prb_bundling_size_ind = dci->prb_bundling_size_indicator.val;
/* RATE_MATCHING_IND */
dlsch_config_pdu_1_1->rate_matching_ind = dci->rate_matching_indicator.val;
/* ZP_CSI_RS_TRIGGER */
dlsch_config_pdu_1_1->zp_csi_rs_trigger = dci->zp_csi_rs_trigger.val;
/* MCS (for transport block 1)*/
dlsch_config_pdu_1_1->mcs = dci->mcs;
// Basic sanity check for MCS value to check for a false or erroneous DCI
if (dlsch_config_pdu_1_1->mcs > 28) {
LOG_W(MAC, "MCS value % d out of bounds! Possibly due to false DCI. Ignoring DCI!!\n", dlsch_config_pdu_1_1->mcs);
return -1;
}
/* NDI (for transport block 1)*/
dlsch_config_pdu_1_1->ndi = dci->ndi;
/* RV (for transport block 1)*/
dlsch_config_pdu_1_1->rv = dci->rv;
/* MCS (for transport block 2)*/
dlsch_config_pdu_1_1->tb2_mcs = dci->mcs2.val;
// Basic sanity check for MCS value to check for a false or erroneous DCI
if (dlsch_config_pdu_1_1->tb2_mcs > 28) {
LOG_W(MAC, "MCS value % d out of bounds! Possibly due to false DCI. Ignoring DCI!!\n", dlsch_config_pdu_1_1->tb2_mcs);
return -1;
}
/* NDI (for transport block 2)*/
dlsch_config_pdu_1_1->tb2_ndi = dci->ndi2.val;
/* RV (for transport block 2)*/
dlsch_config_pdu_1_1->tb2_rv = dci->rv2.val;
/* HARQ_PROCESS_NUMBER */
dlsch_config_pdu_1_1->harq_process_nbr = dci->harq_pid;
/* DAI */
dlsch_config_pdu_1_1->dai = dci->dai[0].val;
/* TPC_PUCCH */
// according to TS 38.213 Table 7.2.1-1
if (dci->tpc == 0) dlsch_config_pdu_1_1->accumulated_delta_PUCCH = -1;
if (dci->tpc == 1) dlsch_config_pdu_1_1->accumulated_delta_PUCCH = 0;
if (dci->tpc == 2) dlsch_config_pdu_1_1->accumulated_delta_PUCCH = 1;
if (dci->tpc == 3) dlsch_config_pdu_1_1->accumulated_delta_PUCCH = 3;
/* PUCCH_RESOURCE_IND */
dlsch_config_pdu_1_1->pucch_resource_id = dci->pucch_resource_indicator;
// Sanity check for pucch_resource_indicator value received to check for false DCI.
valid = 0;
pucch_res_set_cnt = mac->ULbwp[0]->bwp_Dedicated->pucch_Config->choice.setup->resourceSetToAddModList->list.count;
for (int id = 0; id < pucch_res_set_cnt; id++) {
if (dlsch_config_pdu_1_1->pucch_resource_id < mac->ULbwp[0]->bwp_Dedicated->pucch_Config->choice.setup->resourceSetToAddModList->list.array[id]->resourceList.list.count) {
valid = 1;
break;
}
}
if (!valid) {
LOG_W(MAC, "pucch_resource_indicator value %d is out of bounds. Possibly due to false DCI. Ignoring DCI!\n", dlsch_config_pdu_1_1->pucch_resource_id);
return -1;
}
/* PDSCH_TO_HARQ_FEEDBACK_TIME_IND */
// according to TS 38.213 Table 9.2.3-1
dlsch_config_pdu_1_1->pdsch_to_harq_feedback_time_ind = mac->ULbwp[bwp_id-1]->bwp_Dedicated->pucch_Config->choice.setup->dl_DataToUL_ACK->list.array[dci->pdsch_to_harq_feedback_timing_indicator.val][0];
/* ANTENNA_PORTS */
uint8_t n_codewords = 1; // FIXME!!!
if ((mac->phy_config.config_req.dl_bwp_dedicated.pdsch_config_dedicated.dmrs_dl_for_pdsch_mapping_type_a.dmrs_type == 1) &&
(mac->phy_config.config_req.dl_bwp_dedicated.pdsch_config_dedicated.dmrs_dl_for_pdsch_mapping_type_a.max_length == 1)){
// Table 7.3.1.2.2-1: Antenna port(s) (1000 + DMRS port), dmrs-Type=1, maxLength=1
dlsch_config_pdu_1_1->n_dmrs_cdm_groups = table_7_3_2_3_3_1[dci->antenna_ports.val][0];
dlsch_config_pdu_1_1->dmrs_ports[0] = table_7_3_2_3_3_1[dci->antenna_ports.val][1];
dlsch_config_pdu_1_1->dmrs_ports[1] = table_7_3_2_3_3_1[dci->antenna_ports.val][2];
dlsch_config_pdu_1_1->dmrs_ports[2] = table_7_3_2_3_3_1[dci->antenna_ports.val][3];
dlsch_config_pdu_1_1->dmrs_ports[3] = table_7_3_2_3_3_1[dci->antenna_ports.val][4];
}
if ((mac->phy_config.config_req.dl_bwp_dedicated.pdsch_config_dedicated.dmrs_dl_for_pdsch_mapping_type_a.dmrs_type == 1) &&
(mac->phy_config.config_req.dl_bwp_dedicated.pdsch_config_dedicated.dmrs_dl_for_pdsch_mapping_type_a.max_length == 2)){
// Table 7.3.1.2.2-2: Antenna port(s) (1000 + DMRS port), dmrs-Type=1, maxLength=2
if (n_codewords == 1) {
dlsch_config_pdu_1_1->n_dmrs_cdm_groups = table_7_3_2_3_3_2_oneCodeword[dci->antenna_ports.val][0];
dlsch_config_pdu_1_1->dmrs_ports[0] = table_7_3_2_3_3_2_oneCodeword[dci->antenna_ports.val][1];
dlsch_config_pdu_1_1->dmrs_ports[1] = table_7_3_2_3_3_2_oneCodeword[dci->antenna_ports.val][2];
dlsch_config_pdu_1_1->dmrs_ports[2] = table_7_3_2_3_3_2_oneCodeword[dci->antenna_ports.val][3];
dlsch_config_pdu_1_1->dmrs_ports[3] = table_7_3_2_3_3_2_oneCodeword[dci->antenna_ports.val][4];
dlsch_config_pdu_1_1->n_front_load_symb = table_7_3_2_3_3_2_oneCodeword[dci->antenna_ports.val][5];
}
if (n_codewords == 1) {
dlsch_config_pdu_1_1->n_dmrs_cdm_groups = table_7_3_2_3_3_2_twoCodeword[dci->antenna_ports.val][0];
dlsch_config_pdu_1_1->dmrs_ports[0] = table_7_3_2_3_3_2_twoCodeword[dci->antenna_ports.val][1];
dlsch_config_pdu_1_1->dmrs_ports[1] = table_7_3_2_3_3_2_twoCodeword[dci->antenna_ports.val][2];
dlsch_config_pdu_1_1->dmrs_ports[2] = table_7_3_2_3_3_2_twoCodeword[dci->antenna_ports.val][3];
dlsch_config_pdu_1_1->dmrs_ports[3] = table_7_3_2_3_3_2_twoCodeword[dci->antenna_ports.val][4];
dlsch_config_pdu_1_1->dmrs_ports[4] = table_7_3_2_3_3_2_twoCodeword[dci->antenna_ports.val][5];
dlsch_config_pdu_1_1->dmrs_ports[5] = table_7_3_2_3_3_2_twoCodeword[dci->antenna_ports.val][6];
dlsch_config_pdu_1_1->dmrs_ports[6] = table_7_3_2_3_3_2_twoCodeword[dci->antenna_ports.val][7];
dlsch_config_pdu_1_1->dmrs_ports[7] = table_7_3_2_3_3_2_twoCodeword[dci->antenna_ports.val][8];
dlsch_config_pdu_1_1->n_front_load_symb = table_7_3_2_3_3_2_twoCodeword[dci->antenna_ports.val][9];
}
}
if ((mac->phy_config.config_req.dl_bwp_dedicated.pdsch_config_dedicated.dmrs_dl_for_pdsch_mapping_type_a.dmrs_type == 2) &&
(mac->phy_config.config_req.dl_bwp_dedicated.pdsch_config_dedicated.dmrs_dl_for_pdsch_mapping_type_a.max_length == 1)){
// Table 7.3.1.2.2-3: Antenna port(s) (1000 + DMRS port), dmrs-Type=2, maxLength=1
if (n_codewords == 1) {
dlsch_config_pdu_1_1->n_dmrs_cdm_groups = table_7_3_2_3_3_3_oneCodeword[dci->antenna_ports.val][0];
dlsch_config_pdu_1_1->dmrs_ports[0] = table_7_3_2_3_3_3_oneCodeword[dci->antenna_ports.val][1];
dlsch_config_pdu_1_1->dmrs_ports[1] = table_7_3_2_3_3_3_oneCodeword[dci->antenna_ports.val][2];
dlsch_config_pdu_1_1->dmrs_ports[2] = table_7_3_2_3_3_3_oneCodeword[dci->antenna_ports.val][3];
dlsch_config_pdu_1_1->dmrs_ports[3] = table_7_3_2_3_3_3_oneCodeword[dci->antenna_ports.val][4];
}
if (n_codewords == 1) {
dlsch_config_pdu_1_1->n_dmrs_cdm_groups = table_7_3_2_3_3_3_twoCodeword[dci->antenna_ports.val][0];
dlsch_config_pdu_1_1->dmrs_ports[0] = table_7_3_2_3_3_3_twoCodeword[dci->antenna_ports.val][1];
dlsch_config_pdu_1_1->dmrs_ports[1] = table_7_3_2_3_3_3_twoCodeword[dci->antenna_ports.val][2];
dlsch_config_pdu_1_1->dmrs_ports[2] = table_7_3_2_3_3_3_twoCodeword[dci->antenna_ports.val][3];
dlsch_config_pdu_1_1->dmrs_ports[3] = table_7_3_2_3_3_3_twoCodeword[dci->antenna_ports.val][4];
dlsch_config_pdu_1_1->dmrs_ports[4] = table_7_3_2_3_3_3_twoCodeword[dci->antenna_ports.val][5];
dlsch_config_pdu_1_1->dmrs_ports[5] = table_7_3_2_3_3_3_twoCodeword[dci->antenna_ports.val][6];
}
}
if ((mac->phy_config.config_req.dl_bwp_dedicated.pdsch_config_dedicated.dmrs_dl_for_pdsch_mapping_type_a.dmrs_type == 2) &&
(mac->phy_config.config_req.dl_bwp_dedicated.pdsch_config_dedicated.dmrs_dl_for_pdsch_mapping_type_a.max_length == 2)){
// Table 7.3.1.2.2-4: Antenna port(s) (1000 + DMRS port), dmrs-Type=2, maxLength=2
if (n_codewords == 1) {
dlsch_config_pdu_1_1->n_dmrs_cdm_groups = table_7_3_2_3_3_4_oneCodeword[dci->antenna_ports.val][0];
dlsch_config_pdu_1_1->dmrs_ports[0] = table_7_3_2_3_3_4_oneCodeword[dci->antenna_ports.val][1];
dlsch_config_pdu_1_1->dmrs_ports[1] = table_7_3_2_3_3_4_oneCodeword[dci->antenna_ports.val][2];
dlsch_config_pdu_1_1->dmrs_ports[2] = table_7_3_2_3_3_4_oneCodeword[dci->antenna_ports.val][3];
dlsch_config_pdu_1_1->dmrs_ports[3] = table_7_3_2_3_3_4_oneCodeword[dci->antenna_ports.val][4];
dlsch_config_pdu_1_1->n_front_load_symb = table_7_3_2_3_3_4_oneCodeword[dci->antenna_ports.val][5];
}
if (n_codewords == 1) {
dlsch_config_pdu_1_1->n_dmrs_cdm_groups = table_7_3_2_3_3_4_twoCodeword[dci->antenna_ports.val][0];
dlsch_config_pdu_1_1->dmrs_ports[0] = table_7_3_2_3_3_4_twoCodeword[dci->antenna_ports.val][1];
dlsch_config_pdu_1_1->dmrs_ports[1] = table_7_3_2_3_3_4_twoCodeword[dci->antenna_ports.val][2];
dlsch_config_pdu_1_1->dmrs_ports[2] = table_7_3_2_3_3_4_twoCodeword[dci->antenna_ports.val][3];
dlsch_config_pdu_1_1->dmrs_ports[3] = table_7_3_2_3_3_4_twoCodeword[dci->antenna_ports.val][4];
dlsch_config_pdu_1_1->dmrs_ports[4] = table_7_3_2_3_3_4_twoCodeword[dci->antenna_ports.val][5];
dlsch_config_pdu_1_1->dmrs_ports[5] = table_7_3_2_3_3_4_twoCodeword[dci->antenna_ports.val][6];
dlsch_config_pdu_1_1->dmrs_ports[6] = table_7_3_2_3_3_4_twoCodeword[dci->antenna_ports.val][7];
dlsch_config_pdu_1_1->dmrs_ports[7] = table_7_3_2_3_3_4_twoCodeword[dci->antenna_ports.val][8];
dlsch_config_pdu_1_1->n_front_load_symb = table_7_3_2_3_3_4_twoCodeword[dci->antenna_ports.val][9];
}
}
/* TCI */
if (mac->dl_config_request.dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.tci_present_in_dci == 1){
// 0 bit if higher layer parameter tci-PresentInDCI is not enabled
// otherwise 3 bits as defined in Subclause 5.1.5 of [6, TS38.214]
dlsch_config_pdu_1_1->tci_state = dci->transmission_configuration_indication.val;
}
/* SRS_REQUEST */
// if SUL is supported in the cell, there is an additional bit in this field and the value of this bit represents table 7.1.1.1-1 TS 38.212 FIXME!!!
dlsch_config_pdu_1_1->srs_config.aperiodicSRS_ResourceTrigger = (dci->srs_request.val & 0x11); // as per Table 7.3.1.1.2-24 TS 38.212
/* CBGTI */
dlsch_config_pdu_1_1->cbgti = dci->cbgti.val;
/* CBGFI */
dlsch_config_pdu_1_1->codeBlockGroupFlushIndicator = dci->cbgfi.val;
/* DMRS_SEQ_INI */
//FIXME!!!
// dl_config->dl_config_list[dl_config->number_pdus].dci_config_pdu.dci_config_rel15.N_RB_BWP = n_RB_DLBWP;
dl_config->dl_config_list[dl_config->number_pdus].pdu_type = FAPI_NR_DL_CONFIG_TYPE_DLSCH;
LOG_D(MAC,"(nr_ue_procedures.c) pdu_type=%d\n\n",dl_config->dl_config_list[dl_config->number_pdus].pdu_type);
dl_config->number_pdus = dl_config->number_pdus + 1;
/* TODO same calculation for MCS table as done in UL */
dlsch_config_pdu_1_1->mcs_table = (pdsch_config->mcs_Table) ? (*pdsch_config->mcs_Table + 1) : 0;
/*PTRS configuration */
if(mac->DLbwp[0]->bwp_Dedicated->pdsch_Config->choice.setup->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->phaseTrackingRS != NULL) {
valid_ptrs_setup = set_dl_ptrs_values(mac->DLbwp[0]->bwp_Dedicated->pdsch_Config->choice.setup->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->phaseTrackingRS->choice.setup,
dlsch_config_pdu_1_1->number_rbs, dlsch_config_pdu_1_1->mcs, dlsch_config_pdu_1_1->mcs_table,
&dlsch_config_pdu_1_1->PTRSFreqDensity,&dlsch_config_pdu_1_1->PTRSTimeDensity,
&dlsch_config_pdu_1_1->PTRSPortIndex,&dlsch_config_pdu_1_1->nEpreRatioOfPDSCHToPTRS,
&dlsch_config_pdu_1_1->PTRSReOffset, dlsch_config_pdu_1_1->number_symbols);
if(valid_ptrs_setup==true) {
dlsch_config_pdu_1_1->pduBitmap |= 0x1;
}
}
break;
case NR_DL_DCI_FORMAT_2_0:
break;
case NR_DL_DCI_FORMAT_2_1:
break;
case NR_DL_DCI_FORMAT_2_2:
break;
case NR_DL_DCI_FORMAT_2_3:
break;
default:
break;
}
if(rnti == SI_RNTI){
// }else if(rnti == mac->ra_rnti){
}else if(rnti == P_RNTI){
}else{ // c-rnti
/// check if this is pdcch order
//dci->random_access_preamble_index;
//dci->ss_pbch_index;
//dci->prach_mask_index;
/// else normal DL-SCH grant
}
return 0;
}
int8_t nr_ue_get_SR(module_id_t module_idP, int CC_id, frame_t frameP, uint8_t eNB_id, uint16_t rnti, sub_frame_t subframe){
return 0;
}
void nr_ue_send_sdu(nr_downlink_indication_t *dl_info, NR_UL_TIME_ALIGNMENT_t *ul_time_alignment, int pdu_id){
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_SDU, VCD_FUNCTION_IN);
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
LOG_T(MAC, "[UE %d] First 32 bytes of DLSCH : \n", module_idP);
for (i = 0; i < 32; i++) {
LOG_T(MAC, "%x.", sdu[i]);
}
LOG_T(MAC, "\n");
#endif
LOG_D(MAC, "In %s [%d.%d] Handling DLSCH PDU...\n", __FUNCTION__, dl_info->frame, dl_info->slot);
// Processing MAC PDU
// it parses MAC CEs subheaders, MAC CEs, SDU subheaderds and SDUs
switch (dl_info->rx_ind->rx_indication_body[pdu_id].pdu_type){
case FAPI_NR_RX_PDU_TYPE_DLSCH:
nr_ue_process_mac_pdu(dl_info, ul_time_alignment, pdu_id);
break;
case FAPI_NR_RX_PDU_TYPE_RAR:
nr_ue_process_rar(dl_info, ul_time_alignment, pdu_id);
break;
default:
break;
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_SDU, VCD_FUNCTION_OUT);
}
// N_RB configuration according to 7.3.1.0 (DCI size alignment) of TS 38.212
int get_n_rb(NR_UE_MAC_INST_t *mac, int rnti_type){
int N_RB = 0, start_RB;
switch(rnti_type) {
case NR_RNTI_RA:
case NR_RNTI_TC:
case NR_RNTI_P:
case NR_RNTI_SI:
if (mac->DLbwp[0]->bwp_Common->pdcch_ConfigCommon->choice.setup->controlResourceSetZero) {
NR_BWP_Id_t bwp_id = mac->DL_BWP_Id;
uint8_t coreset_id = 0; // assuming controlResourceSetId is 0 for controlResourceSetZero
NR_ControlResourceSet_t *coreset = mac->coreset[bwp_id - 1][coreset_id];
get_coreset_rballoc(coreset->frequencyDomainResources.buf,&N_RB,&start_RB);
} else {
N_RB = NRRIV2BW(mac->scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
}
break;
case NR_RNTI_C:
N_RB = NRRIV2BW(mac->DLbwp[0]->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
break;
}
return N_RB;
}
int nr_extract_dci_info(NR_UE_MAC_INST_t *mac,
int dci_format,
uint8_t dci_size,
uint16_t rnti,
uint64_t *dci_pdu,
dci_pdu_rel15_t *dci_pdu_rel15) {
int rnti_type=-1;
RA_config_t *ra = &mac->ra;
if (rnti == ra->ra_rnti) rnti_type = NR_RNTI_RA;
else if (rnti == mac->crnti) rnti_type = NR_RNTI_C;
else if (rnti == ra->t_crnti) rnti_type = NR_RNTI_TC;
else if (rnti == 0xFFFE) rnti_type = NR_RNTI_P;
else if (rnti == 0xFFFF) rnti_type = NR_RNTI_SI;
AssertFatal(rnti_type!=-1,"no identified/handled rnti\n");
AssertFatal(mac->DLbwp[0] != NULL, "DLbwp[0] shouldn't be null here!\n");
AssertFatal(mac->ULbwp[0] != NULL, "ULbwp[0] shouldn't be null here!\n");
int N_RB = get_n_rb(mac, rnti_type);
int N_RB_UL = (mac->scg != NULL) ?
NRRIV2BW(mac->ULbwp[0]->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE) :
NRRIV2BW(mac->scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
int pos=0;
int fsize=0;
if (rnti_type == NR_RNTI_C) {
// First find out the DCI format from the first bit (UE performed blind decoding)
pos++;
dci_pdu_rel15->format_indicator = (*dci_pdu>>(dci_size-pos))&1;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"Format indicator %d (%d bits) N_RB_BWP %d => %d (0x%lx)\n",dci_pdu_rel15->format_indicator,1,N_RB,dci_size-pos,*dci_pdu);
#endif
if (dci_format == NR_UL_DCI_FORMAT_0_0 || dci_format == NR_DL_DCI_FORMAT_1_0) {
if (dci_pdu_rel15->format_indicator == 0)
dci_format = NR_UL_DCI_FORMAT_0_0;
else
dci_format = NR_DL_DCI_FORMAT_1_0;
}
else if (dci_format == NR_UL_DCI_FORMAT_0_1 || dci_format == NR_DL_DCI_FORMAT_1_1) {
// In case the sizes of formats 0_1 and 1_1 happen to be the same
if (dci_pdu_rel15->format_indicator == 0)
dci_format = NR_UL_DCI_FORMAT_0_1;
else
dci_format = NR_DL_DCI_FORMAT_1_1;
}
}
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC, "DCI format is %d\n", dci_format);
#endif
switch(dci_format) {
case NR_DL_DCI_FORMAT_1_0:
switch(rnti_type) {
case NR_RNTI_RA:
// Freq domain assignment
fsize = (int)ceil( log2( (N_RB*(N_RB+1))>>1 ) );
pos=fsize;
dci_pdu_rel15->frequency_domain_assignment.val = *dci_pdu>>(dci_size-pos)&((1<<fsize)-1);
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"frequency-domain assignment %d (%d bits) N_RB_BWP %d=> %d (0x%lx)\n",dci_pdu_rel15->frequency_domain_assignment.val,fsize,N_RB,dci_size-pos,*dci_pdu);
#endif
// Time domain assignment
pos+=4;
dci_pdu_rel15->time_domain_assignment.val = (*dci_pdu >> (dci_size-pos))&0xf;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"time-domain assignment %d (4 bits)=> %d (0x%lx)\n",dci_pdu_rel15->time_domain_assignment.val,dci_size-pos,*dci_pdu);
#endif
// VRB to PRB mapping
pos++;
dci_pdu_rel15->vrb_to_prb_mapping.val = (*dci_pdu>>(dci_size-pos))&0x1;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"vrb to prb mapping %d (1 bits)=> %d (0x%lx)\n",dci_pdu_rel15->vrb_to_prb_mapping.val,dci_size-pos,*dci_pdu);
#endif
// MCS
pos+=5;
dci_pdu_rel15->mcs = (*dci_pdu>>(dci_size-pos))&0x1f;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"mcs %d (5 bits)=> %d (0x%lx)\n",dci_pdu_rel15->mcs,dci_size-pos,*dci_pdu);
#endif
// TB scaling
pos+=2;
dci_pdu_rel15->tb_scaling = (*dci_pdu>>(dci_size-pos))&0x3;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"tb_scaling %d (2 bits)=> %d (0x%lx)\n",dci_pdu_rel15->tb_scaling,dci_size-pos,*dci_pdu);
#endif
break;
case NR_RNTI_C:
// Freq domain assignment (275rb >> fsize = 16)
fsize = (int)ceil( log2( (N_RB*(N_RB+1))>>1 ) );
pos+=fsize;
dci_pdu_rel15->frequency_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&((1<<fsize)-1);
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"Freq domain assignment %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->frequency_domain_assignment.val,fsize,dci_size-pos,*dci_pdu);
#endif
uint16_t is_ra = 1;
for (int i=0; i<fsize; i++)
if (!((dci_pdu_rel15->frequency_domain_assignment.val>>i)&1)) {
is_ra = 0;
break;
}
if (is_ra) //fsize are all 1 38.212 p86
{
// ra_preamble_index 6 bits
pos+=6;
dci_pdu_rel15->ra_preamble_index = (*dci_pdu>>(dci_size-pos))&0x3f;
// UL/SUL indicator 1 bit
pos++;
dci_pdu_rel15->ul_sul_indicator.val = (*dci_pdu>>(dci_size-pos))&1;
// SS/PBCH index 6 bits
pos+=6;
dci_pdu_rel15->ss_pbch_index = (*dci_pdu>>(dci_size-pos))&0x3f;
// prach_mask_index 4 bits
pos+=4;
dci_pdu_rel15->prach_mask_index = (*dci_pdu>>(dci_size-pos))&0xf;
} //end if
else {
// Time domain assignment 4bit
pos+=4;
dci_pdu_rel15->time_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&0xf;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"Time domain assignment %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->time_domain_assignment.val,4,dci_size-pos,*dci_pdu);
#endif
// VRB to PRB mapping 1bit
pos++;
dci_pdu_rel15->vrb_to_prb_mapping.val = (*dci_pdu>>(dci_size-pos))&1;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"VRB to PRB %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->vrb_to_prb_mapping.val,1,dci_size-pos,*dci_pdu);
#endif
// MCS 5bit //bit over 32, so dci_pdu ++
pos+=5;
dci_pdu_rel15->mcs = (*dci_pdu>>(dci_size-pos))&0x1f;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"MCS %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->mcs,5,dci_size-pos,*dci_pdu);
#endif
// New data indicator 1bit
pos++;
dci_pdu_rel15->ndi = (*dci_pdu>>(dci_size-pos))&1;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"NDI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->ndi,1,dci_size-pos,*dci_pdu);
#endif
// Redundancy version 2bit
pos+=2;
dci_pdu_rel15->rv = (*dci_pdu>>(dci_size-pos))&0x3;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"RV %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->rv,2,dci_size-pos,*dci_pdu);
#endif
// HARQ process number 4bit
pos+=4;
dci_pdu_rel15->harq_pid = (*dci_pdu>>(dci_size-pos))&0xf;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"HARQ_PID %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->harq_pid,4,dci_size-pos,*dci_pdu);
#endif
// Downlink assignment index 2bit
pos+=2;
dci_pdu_rel15->dai[0].val = (*dci_pdu>>(dci_size-pos))&3;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"DAI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->dai[0].val,2,dci_size-pos,*dci_pdu);
#endif
// TPC command for scheduled PUCCH 2bit
pos+=2;
dci_pdu_rel15->tpc = (*dci_pdu>>(dci_size-pos))&3;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"TPC %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->tpc,2,dci_size-pos,*dci_pdu);
#endif
// PUCCH resource indicator 3bit
pos+=3;
dci_pdu_rel15->pucch_resource_indicator = (*dci_pdu>>(dci_size-pos))&0x7;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"PUCCH RI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->pucch_resource_indicator,3,dci_size-pos,*dci_pdu);
#endif
// PDSCH-to-HARQ_feedback timing indicator 3bit
pos+=3;
dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val = (*dci_pdu>>(dci_size-pos))&0x7;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"PDSCH to HARQ TI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val,3,dci_size-pos,*dci_pdu);
#endif
} //end else
break;
case NR_RNTI_P:
/*
// Short Messages Indicator  E2 bits
for (int i=0; i<2; i++)
dci_pdu |= (((uint64_t)dci_pdu_rel15->short_messages_indicator>>(1-i))&1)<<(dci_size-pos++);
// Short Messages  E8 bits
for (int i=0; i<8; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->short_messages>>(7-i))&1)<<(dci_size-pos++);
// Freq domain assignment 0-16 bit
fsize = (int)ceil( log2( (N_RB*(N_RB+1))>>1 ) );
for (int i=0; i<fsize; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->frequency_domain_assignment>>(fsize-i-1))&1)<<(dci_size-pos++);
// Time domain assignment 4 bit
for (int i=0; i<4; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->time_domain_assignment>>(3-i))&1)<<(dci_size-pos++);
// VRB to PRB mapping 1 bit
*dci_pdu |= ((uint64_t)dci_pdu_rel15->vrb_to_prb_mapping.val&1)<<(dci_size-pos++);
// MCS 5 bit
for (int i=0; i<5; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->mcs>>(4-i))&1)<<(dci_size-pos++);
// TB scaling 2 bit
for (int i=0; i<2; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->tb_scaling>>(1-i))&1)<<(dci_size-pos++);
*/
break;
case NR_RNTI_SI:
/*
// Freq domain assignment 0-16 bit
fsize = (int)ceil( log2( (N_RB*(N_RB+1))>>1 ) );
for (int i=0; i<fsize; i++)
*dci_pdu |= ((dci_pdu_rel15->frequency_domain_assignment>>(fsize-i-1))&1)<<(dci_size-pos++);
// Time domain assignment 4 bit
for (int i=0; i<4; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->time_domain_assignment>>(3-i))&1)<<(dci_size-pos++);
// VRB to PRB mapping 1 bit
*dci_pdu |= ((uint64_t)dci_pdu_rel15->vrb_to_prb_mapping.val&1)<<(dci_size-pos++);
// MCS 5bit //bit over 32, so dci_pdu ++
for (int i=0; i<5; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->mcs>>(4-i))&1)<<(dci_size-pos++);
// Redundancy version 2bit
for (int i=0; i<2; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->rv>>(1-i))&1)<<(dci_size-pos++);
*/
break;
case NR_RNTI_TC:
// indicating a DL DCI format 1bit
pos++;
dci_pdu_rel15->format_indicator = (*dci_pdu>>(dci_size-pos))&1;
// Freq domain assignment 0-16 bit
fsize = (int)ceil( log2( (N_RB*(N_RB+1))>>1 ) );
pos+=fsize;
dci_pdu_rel15->frequency_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&((1<<fsize)-1);
// Time domain assignment 4 bit
pos+=4;
dci_pdu_rel15->time_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&0xf;
// VRB to PRB mapping 1 bit
dci_pdu_rel15->vrb_to_prb_mapping.val = (*dci_pdu>>(dci_size-pos))&1;
// MCS 5bit //bit over 32, so dci_pdu ++
pos+=5;
dci_pdu_rel15->mcs = (*dci_pdu>>(dci_size-pos))&0x1f;
// New data indicator 1bit
dci_pdu_rel15->ndi = (*dci_pdu>>(dci_size-pos))&1;
// Redundancy version 2bit
pos+=2;
dci_pdu_rel15->rv = (*dci_pdu>>(dci_size-pos))&3;
// HARQ process number 4bit
pos+=4;
dci_pdu_rel15->harq_pid = (*dci_pdu>>(dci_size-pos))&0xf;
// Downlink assignment index  E2 bits
pos+=2;
dci_pdu_rel15->dai[0].val = (*dci_pdu>>(dci_size-pos))&3;
// TPC command for scheduled PUCCH  E2 bits
pos+=2;
dci_pdu_rel15->tpc = (*dci_pdu>>(dci_size-pos))&3;
// PDSCH-to-HARQ_feedback timing indicator  E3 bits
pos+=3;
dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val = (*dci_pdu>>(dci_size-pos))&7;
break;
}
break;
case NR_UL_DCI_FORMAT_0_0:
switch(rnti_type)
{
case NR_RNTI_C:
fsize = (int)ceil( log2( (N_RB_UL*(N_RB_UL+1))>>1 ) );
pos+=fsize;
dci_pdu_rel15->frequency_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&((1<<fsize)-1);
// Time domain assignment 4bit
pos+=4;
dci_pdu_rel15->time_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&0xf;
// Frequency hopping flag  E1 bit
pos++;
dci_pdu_rel15->frequency_hopping_flag.val= (*dci_pdu>>(dci_size-pos))&1;
// MCS 5 bit
pos+=5;
dci_pdu_rel15->mcs= (*dci_pdu>>(dci_size-pos))&0x1f;
// New data indicator 1bit
pos++;
dci_pdu_rel15->ndi= (*dci_pdu>>(dci_size-pos))&1;
// Redundancy version 2bit
pos+=2;
dci_pdu_rel15->rv= (*dci_pdu>>(dci_size-pos))&3;
// HARQ process number 4bit
pos+=4;
dci_pdu_rel15->harq_pid = (*dci_pdu>>(dci_size-pos))&0xf;
// TPC command for scheduled PUSCH  E2 bits
pos+=2;
dci_pdu_rel15->tpc = (*dci_pdu>>(dci_size-pos))&3;
// UL/SUL indicator  E1 bit
/* commented for now (RK): need to get this from BWP descriptor
if (cfg->pucch_config.pucch_GroupHopping.value)
dci_pdu->= ((uint64_t)*dci_pdu>>(dci_size-pos)ul_sul_indicator&1)<<(dci_size-pos++);
*/
break;
case NR_RNTI_TC:
/*
// indicating a DL DCI format 1bit
dci_pdu->= (*dci_pdu>>(dci_size-pos)format_indicator&1)<<(dci_size-pos++);
// Freq domain assignment max 16 bit
fsize = (int)ceil( log2( (N_RB_UL*(N_RB_UL+1))>>1 ) );
for (int i=0; i<fsize; i++)
dci_pdu->= ((*dci_pdu>>(dci_size-pos)frequency_domain_assignment>>(fsize-i-1))&1)<<(dci_size-pos++);
// Time domain assignment 4bit
for (int i=0; i<4; i++)
dci_pdu->= (((uint64_t)*dci_pdu>>(dci_size-pos)time_domain_assignment>>(3-i))&1)<<(dci_size-pos++);
// Frequency hopping flag  E1 bit
dci_pdu->= ((uint64_t)*dci_pdu>>(dci_size-pos)frequency_hopping_flag&1)<<(dci_size-pos++);
// MCS 5 bit
for (int i=0; i<5; i++)
dci_pdu->= (((uint64_t)*dci_pdu>>(dci_size-pos)mcs>>(4-i))&1)<<(dci_size-pos++);
// New data indicator 1bit
dci_pdu->= ((uint64_t)*dci_pdu>>(dci_size-pos)ndi&1)<<(dci_size-pos++);
// Redundancy version 2bit
for (int i=0; i<2; i++)
dci_pdu->= (((uint64_t)*dci_pdu>>(dci_size-pos)rv>>(1-i))&1)<<(dci_size-pos++);
// HARQ process number 4bit
for (int i=0; i<4; i++)
*dci_pdu |= (((uint64_t)*dci_pdu>>(dci_size-pos)harq_pid>>(3-i))&1)<<(dci_size-pos++);
// TPC command for scheduled PUSCH  E2 bits
for (int i=0; i<2; i++)
dci_pdu->= (((uint64_t)*dci_pdu>>(dci_size-pos)tpc>>(1-i))&1)<<(dci_size-pos++);
*/
// UL/SUL indicator  E1 bit
/*
commented for now (RK): need to get this information from BWP descriptor
if (cfg->pucch_config.pucch_GroupHopping.value)
dci_pdu->= ((uint64_t)dci_pdu_rel15->ul_sul_indicator&1)<<(dci_size-pos++);
*/
break;
}
break;
case NR_DL_DCI_FORMAT_1_1:
switch(rnti_type)
{
case NR_RNTI_C:
// Carrier indicator
pos+=dci_pdu_rel15->carrier_indicator.nbits;
dci_pdu_rel15->carrier_indicator.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->carrier_indicator.nbits)-1);
// BWP Indicator
pos+=dci_pdu_rel15->bwp_indicator.nbits;
dci_pdu_rel15->bwp_indicator.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->bwp_indicator.nbits)-1);
config_bwp_ue(mac, &dci_pdu_rel15->bwp_indicator.val, &dci_format);
// Frequency domain resource assignment
pos+=dci_pdu_rel15->frequency_domain_assignment.nbits;
dci_pdu_rel15->frequency_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->frequency_domain_assignment.nbits)-1);
// Time domain resource assignment
pos+=dci_pdu_rel15->time_domain_assignment.nbits;
dci_pdu_rel15->time_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->time_domain_assignment.nbits)-1);
// VRB-to-PRB mapping
pos+=dci_pdu_rel15->vrb_to_prb_mapping.nbits;
dci_pdu_rel15->vrb_to_prb_mapping.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->vrb_to_prb_mapping.nbits)-1);
// PRB bundling size indicator
pos+=dci_pdu_rel15->prb_bundling_size_indicator.nbits;
dci_pdu_rel15->prb_bundling_size_indicator.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->prb_bundling_size_indicator.nbits)-1);
// Rate matching indicator
pos+=dci_pdu_rel15->rate_matching_indicator.nbits;
dci_pdu_rel15->rate_matching_indicator.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->rate_matching_indicator.nbits)-1);
// ZP CSI-RS trigger
pos+=dci_pdu_rel15->zp_csi_rs_trigger.nbits;
dci_pdu_rel15->zp_csi_rs_trigger.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->zp_csi_rs_trigger.nbits)-1);
//TB1
// MCS 5bit
pos+=5;
dci_pdu_rel15->mcs = (*dci_pdu>>(dci_size-pos))&0x1f;
// New data indicator 1bit
pos+=1;
dci_pdu_rel15->ndi = (*dci_pdu>>(dci_size-pos))&0x1;
// Redundancy version 2bit
pos+=2;
dci_pdu_rel15->rv = (*dci_pdu>>(dci_size-pos))&0x3;
//TB2
// MCS 5bit
pos+=dci_pdu_rel15->mcs2.nbits;
dci_pdu_rel15->mcs2.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->mcs2.nbits)-1);
// New data indicator 1bit
pos+=dci_pdu_rel15->ndi2.nbits;
dci_pdu_rel15->ndi2.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->ndi2.nbits)-1);
// Redundancy version 2bit
pos+=dci_pdu_rel15->rv2.nbits;
dci_pdu_rel15->rv2.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->rv2.nbits)-1);
// HARQ process number 4bit
pos+=4;
dci_pdu_rel15->harq_pid = (*dci_pdu>>(dci_size-pos))&0xf;
// Downlink assignment index
pos+=dci_pdu_rel15->dai[0].nbits;
dci_pdu_rel15->dai[0].val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->dai[0].nbits)-1);
// TPC command for scheduled PUCCH 2bit
pos+=2;
dci_pdu_rel15->tpc = (*dci_pdu>>(dci_size-pos))&0x3;
// PUCCH resource indicator 3bit
pos+=3;
dci_pdu_rel15->pucch_resource_indicator = (*dci_pdu>>(dci_size-pos))&0x3;
// PDSCH-to-HARQ_feedback timing indicator
pos+=dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.nbits;
dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.nbits)-1);
// Antenna ports
pos+=dci_pdu_rel15->antenna_ports.nbits;
dci_pdu_rel15->antenna_ports.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->antenna_ports.nbits)-1);
// TCI
pos+=dci_pdu_rel15->transmission_configuration_indication.nbits;
dci_pdu_rel15->transmission_configuration_indication.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->transmission_configuration_indication.nbits)-1);
// SRS request
pos+=dci_pdu_rel15->srs_request.nbits;
dci_pdu_rel15->srs_request.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->srs_request.nbits)-1);
// CBG transmission information
pos+=dci_pdu_rel15->cbgti.nbits;
dci_pdu_rel15->cbgti.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->cbgti.nbits)-1);
// CBG flushing out information
pos+=dci_pdu_rel15->cbgfi.nbits;
dci_pdu_rel15->cbgfi.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->cbgfi.nbits)-1);
// DMRS sequence init
pos+=1;
dci_pdu_rel15->dmrs_sequence_initialization.val = (*dci_pdu>>(dci_size-pos))&0x1;
break;
}
break;
case NR_UL_DCI_FORMAT_0_1:
switch(rnti_type)
{
case NR_RNTI_C:
// Carrier indicator
pos+=dci_pdu_rel15->carrier_indicator.nbits;
dci_pdu_rel15->carrier_indicator.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->carrier_indicator.nbits)-1);
// UL/SUL Indicator
pos+=dci_pdu_rel15->ul_sul_indicator.nbits;
dci_pdu_rel15->ul_sul_indicator.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->ul_sul_indicator.nbits)-1);
// BWP Indicator
pos+=dci_pdu_rel15->bwp_indicator.nbits;
dci_pdu_rel15->bwp_indicator.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->bwp_indicator.nbits)-1);
config_bwp_ue(mac, &dci_pdu_rel15->bwp_indicator.val, &dci_format);
// Freq domain assignment max 16 bit
fsize = (int)ceil( log2( (N_RB_UL*(N_RB_UL+1))>>1 ) );
//pos+=dci_pdu_rel15->frequency_domain_assignment.nbits;
pos+=fsize;
//pos+=dci_pdu_rel15->frequency_domain_assignment.nbits;
dci_pdu_rel15->frequency_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&((1<<fsize)-1);
// Time domain assignment 4bit
//pos+=4;
pos+=dci_pdu_rel15->time_domain_assignment.nbits;
dci_pdu_rel15->time_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&0x3;
// Not supported yet - skip for now
// Frequency hopping flag – 1 bit
//pos++;
//dci_pdu_rel15->frequency_hopping_flag.val= (*dci_pdu>>(dci_size-pos))&1;
// MCS 5 bit
pos+=5;
dci_pdu_rel15->mcs= (*dci_pdu>>(dci_size-pos))&0x1f;
// New data indicator 1bit
pos++;
dci_pdu_rel15->ndi= (*dci_pdu>>(dci_size-pos))&1;
// Redundancy version 2bit
pos+=2;
dci_pdu_rel15->rv= (*dci_pdu>>(dci_size-pos))&3;
// HARQ process number 4bit
pos+=4;
dci_pdu_rel15->harq_pid = (*dci_pdu>>(dci_size-pos))&0xf;
// 1st Downlink assignment index
pos+=dci_pdu_rel15->dai[0].nbits;
dci_pdu_rel15->dai[0].val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->dai[0].nbits)-1);
// 2nd Downlink assignment index
pos+=dci_pdu_rel15->dai[1].nbits;
dci_pdu_rel15->dai[1].val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->dai[1].nbits)-1);
// TPC command for scheduled PUSCH – 2 bits
pos+=2;
dci_pdu_rel15->tpc = (*dci_pdu>>(dci_size-pos))&3;
// SRS resource indicator
pos+=dci_pdu_rel15->srs_resource_indicator.nbits;
dci_pdu_rel15->srs_resource_indicator.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->srs_resource_indicator.nbits)-1);
// Precoding info and n. of layers
pos+=dci_pdu_rel15->precoding_information.nbits;
dci_pdu_rel15->precoding_information.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->precoding_information.nbits)-1);
// Antenna ports
pos+=dci_pdu_rel15->antenna_ports.nbits;
dci_pdu_rel15->antenna_ports.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->antenna_ports.nbits)-1);
// SRS request
pos+=dci_pdu_rel15->srs_request.nbits;
dci_pdu_rel15->srs_request.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->srs_request.nbits)-1);
// CSI request
pos+=dci_pdu_rel15->csi_request.nbits;
dci_pdu_rel15->csi_request.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->csi_request.nbits)-1);
// CBG transmission information
pos+=dci_pdu_rel15->cbgti.nbits;
dci_pdu_rel15->cbgti.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->cbgti.nbits)-1);
// PTRS DMRS association
pos+=dci_pdu_rel15->ptrs_dmrs_association.nbits;
dci_pdu_rel15->ptrs_dmrs_association.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->ptrs_dmrs_association.nbits)-1);
// Beta offset indicator
pos+=dci_pdu_rel15->beta_offset_indicator.nbits;
dci_pdu_rel15->beta_offset_indicator.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->beta_offset_indicator.nbits)-1);
// DMRS sequence initialization
pos+=dci_pdu_rel15->dmrs_sequence_initialization.nbits;
dci_pdu_rel15->dmrs_sequence_initialization.val = (*dci_pdu>>(dci_size-pos))&((1<<dci_pdu_rel15->dmrs_sequence_initialization.nbits)-1);
// UL-SCH indicator
pos+=1;
dci_pdu_rel15->ulsch_indicator = (*dci_pdu>>(dci_size-pos))&0x1;
// UL/SUL indicator – 1 bit
/* commented for now (RK): need to get this from BWP descriptor
if (cfg->pucch_config.pucch_GroupHopping.value)
dci_pdu->= ((uint64_t)*dci_pdu>>(dci_size-pos)ul_sul_indicator&1)<<(dci_size-pos++);
*/
break;
}
break;
}
return dci_format;
}
///////////////////////////////////
// brief: nr_ue_process_mac_pdu
// function: parsing DL PDU header
///////////////////////////////////
// Header for DLSCH:
// Except:
// - DL-SCH: fixed-size MAC CE(known by LCID)
// - DL-SCH: padding
//
// |0|1|2|3|4|5|6|7| bit-wise
// |R|F| LCID |
// | L |
// |0|1|2|3|4|5|6|7| bit-wise
// |R|F| LCID |
// | L |
// | L |
////////////////////////////////
// Header for DLSCH:
// - DLSCH: fixed-size MAC CE(known by LCID)
// - DLSCH: padding, for single/multiple 1-oct padding CE(s)
//
// |0|1|2|3|4|5|6|7| bit-wise
// |R|R| LCID |
// LCID: The Logical Channel ID field identifies the logical channel instance of the corresponding MAC SDU or the type of the corresponding MAC CE or padding as described
// in Tables 6.2.1-1 and 6.2.1-2 for the DL-SCH and UL-SCH respectively. There is one LCID field per MAC subheader. The LCID field size is 6 bits;
// L: The Length field indicates the length of the corresponding MAC SDU or variable-sized MAC CE in bytes. There is one L field per MAC subheader except for subheaders
// corresponding to fixed-sized MAC CEs and padding. The size of the L field is indicated by the F field;
// F: lenght of L is 0:8 or 1:16 bits wide
// R: Reserved bit, set to zero.
////////////////////////////////
void nr_ue_process_mac_pdu(nr_downlink_indication_t *dl_info,
NR_UL_TIME_ALIGNMENT_t *ul_time_alignment,
int pdu_id){
uint8_t rx_lcid;
uint16_t mac_ce_len;
uint16_t mac_subheader_len;
uint16_t mac_sdu_len;
module_id_t module_idP = dl_info->module_id;
frame_t frameP = dl_info->frame;
int slot = dl_info->slot;
uint8_t *pduP = (dl_info->rx_ind->rx_indication_body + pdu_id)->pdsch_pdu.pdu;
uint16_t pdu_len = (dl_info->rx_ind->rx_indication_body + pdu_id)->pdsch_pdu.pdu_length;
uint8_t gNB_index = dl_info->gNB_index;
uint8_t CC_id = dl_info->cc_id;
uint8_t done = 0;
NR_UE_MAC_INST_t *mac = get_mac_inst(module_idP);
RA_config_t *ra = &mac->ra;
if (!pduP){
return;
}
LOG_D(MAC, "In %s [%d.%d]: processing PDU %d of %d total number of PDUs...\n", __FUNCTION__, frameP, slot, pdu_id, dl_info->rx_ind->number_pdus);
while (!done && pdu_len > 0){
mac_ce_len = 0x0000;
mac_subheader_len = 0x0001; // default to fixed-length subheader = 1-oct
mac_sdu_len = 0x0000;
rx_lcid = ((NR_MAC_SUBHEADER_FIXED *)pduP)->LCID;
//#ifdef DEBUG_HEADER_PARSING
LOG_D(MAC, "[UE] LCID %d, PDU length %d\n", ((NR_MAC_SUBHEADER_FIXED *)pduP)->LCID, pdu_len);
//#endif
LOG_D(MAC, "[UE] LCID %d, PDU length %d\n", rx_lcid, pdu_len);
switch(rx_lcid){
// MAC CE
case DL_SCH_LCID_CCCH:
// MSG4 RRC Connection Setup 38.331
// varialbe length
mac_ce_len |= (uint16_t)((NR_MAC_SUBHEADER_SHORT *)pduP)->L;
mac_subheader_len = 2;
if(((NR_MAC_SUBHEADER_SHORT *)pduP)->F){
mac_ce_len |= (uint16_t)(((NR_MAC_SUBHEADER_LONG *)pduP)->L2)<<8;
mac_subheader_len = 3;
}
break;
case DL_SCH_LCID_TCI_STATE_ACT_UE_SPEC_PDSCH:
// 38.321 Ch6.1.3.14
// varialbe length
mac_ce_len |= (uint16_t)((NR_MAC_SUBHEADER_SHORT *)pduP)->L;
mac_subheader_len = 2;
if(((NR_MAC_SUBHEADER_SHORT *)pduP)->F){
mac_ce_len |= (uint16_t)(((NR_MAC_SUBHEADER_LONG *)pduP)->L2)<<8;
mac_subheader_len = 3;
}
break;
case DL_SCH_LCID_APERIODIC_CSI_TRI_STATE_SUBSEL:
// 38.321 Ch6.1.3.13
// varialbe length
mac_ce_len |= (uint16_t)((NR_MAC_SUBHEADER_SHORT *)pduP)->L;
mac_subheader_len = 2;
if(((NR_MAC_SUBHEADER_SHORT *)pduP)->F){
mac_ce_len |= (uint16_t)(((NR_MAC_SUBHEADER_LONG *)pduP)->L2)<<8;
mac_subheader_len = 3;
}
break;
case DL_SCH_LCID_SP_CSI_RS_CSI_IM_RES_SET_ACT:
// 38.321 Ch6.1.3.12
// varialbe length
mac_ce_len |= (uint16_t)((NR_MAC_SUBHEADER_SHORT *)pduP)->L;
mac_subheader_len = 2;
if(((NR_MAC_SUBHEADER_SHORT *)pduP)->F){
mac_ce_len |= (uint16_t)(((NR_MAC_SUBHEADER_LONG *)pduP)->L2)<<8;
mac_subheader_len = 3;
}
break;
case DL_SCH_LCID_SP_SRS_ACTIVATION:
// 38.321 Ch6.1.3.17
// varialbe length
mac_ce_len |= (uint16_t)((NR_MAC_SUBHEADER_SHORT *)pduP)->L;
mac_subheader_len = 2;
if(((NR_MAC_SUBHEADER_SHORT *)pduP)->F){
mac_ce_len |= (uint16_t)(((NR_MAC_SUBHEADER_LONG *)pduP)->L2)<<8;
mac_subheader_len = 3;
}
break;
case DL_SCH_LCID_RECOMMENDED_BITRATE:
// 38.321 Ch6.1.3.20
mac_ce_len = 2;
break;
case DL_SCH_LCID_SP_ZP_CSI_RS_RES_SET_ACT:
// 38.321 Ch6.1.3.19
mac_ce_len = 2;
break;
case DL_SCH_LCID_PUCCH_SPATIAL_RELATION_ACT:
// 38.321 Ch6.1.3.18
mac_ce_len = 3;
break;
case DL_SCH_LCID_SP_CSI_REP_PUCCH_ACT:
// 38.321 Ch6.1.3.16
mac_ce_len = 2;
break;
case DL_SCH_LCID_TCI_STATE_IND_UE_SPEC_PDCCH:
// 38.321 Ch6.1.3.15
mac_ce_len = 2;
break;
case DL_SCH_LCID_DUPLICATION_ACT:
// 38.321 Ch6.1.3.11
mac_ce_len = 1;
break;
case DL_SCH_LCID_SCell_ACT_4_OCT:
// 38.321 Ch6.1.3.10
mac_ce_len = 4;
break;
case DL_SCH_LCID_SCell_ACT_1_OCT:
// 38.321 Ch6.1.3.10
mac_ce_len = 1;
break;
case DL_SCH_LCID_L_DRX:
// 38.321 Ch6.1.3.6
// fixed length but not yet specify.
mac_ce_len = 0;
break;
case DL_SCH_LCID_DRX:
// 38.321 Ch6.1.3.5
// fixed length but not yet specify.
mac_ce_len = 0;
break;
case DL_SCH_LCID_TA_COMMAND:
// 38.321 Ch6.1.3.4
mac_ce_len = 1;
/*uint8_t ta_command = ((NR_MAC_CE_TA *)pduP)[1].TA_COMMAND;
uint8_t tag_id = ((NR_MAC_CE_TA *)pduP)[1].TAGID;*/
ul_time_alignment->apply_ta = 1;
ul_time_alignment->ta_command = ((NR_MAC_CE_TA *)pduP)[1].TA_COMMAND;
ul_time_alignment->tag_id = ((NR_MAC_CE_TA *)pduP)[1].TAGID;
/*
#ifdef DEBUG_HEADER_PARSING
LOG_D(MAC, "[UE] CE %d : UE Timing Advance : %d\n", i, pduP[1]);
#endif
*/
LOG_D(MAC, "Received TA_COMMAND %u TAGID %u CC_id %d\n", ul_time_alignment->ta_command, ul_time_alignment->tag_id, CC_id);
break;
case DL_SCH_LCID_CON_RES_ID:
// Clause 5.1.5 and 6.1.3.3 of 3GPP TS 38.321 version 16.2.1 Release 16
// WIP todo: handle CCCH_pdu
mac_ce_len = 6;
LOG_I(MAC, "[UE %d][RAPROC] Frame %d : received contention resolution msg: %x.%x.%x.%x.%x.%x, Terminating RA procedure\n", module_idP, frameP, pduP[0], pduP[1], pduP[2], pduP[3], pduP[4], pduP[5]);
if (ra->RA_active == 1) {
nr_ra_succeeded(module_idP, frameP, slot);
}
break;
case DL_SCH_LCID_PADDING:
done = 1;
// end of MAC PDU, can ignore the rest.
break;
// MAC SDU
case DL_SCH_LCID_DCCH:
// check if LCID is valid at current time.
case DL_SCH_LCID_DCCH1:
// check if LCID is valid at current time.
default:
// check if LCID is valid at current time.
if(((NR_MAC_SUBHEADER_SHORT *)pduP)->F){
//mac_sdu_len |= (uint16_t)(((NR_MAC_SUBHEADER_LONG *)pduP)->L2)<<8;
mac_subheader_len = 3;
mac_sdu_len = ((uint16_t)(((NR_MAC_SUBHEADER_LONG *) pduP)->L1 & 0x7f) << 8)
| ((uint16_t)((NR_MAC_SUBHEADER_LONG *) pduP)->L2 & 0xff);
} else {
mac_sdu_len = (uint16_t)((NR_MAC_SUBHEADER_SHORT *)pduP)->L;
mac_subheader_len = 2;
}
LOG_D(MAC, "[UE %d] Frame %d : DLSCH -> DL-DTCH %d (gNB %d, %d bytes)\n", module_idP, frameP, rx_lcid, gNB_index, mac_sdu_len);
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
LOG_T(MAC, "[UE %d] First 32 bytes of DLSCH : \n", module_idP);
for (i = 0; i < 32; i++)
LOG_T(MAC, "%x.", (pduP + mac_subheader_len)[i]);
LOG_T(MAC, "\n");
#endif
if (IS_SOFTMODEM_NOS1){
if (rx_lcid < NB_RB_MAX && rx_lcid >= DL_SCH_LCID_DTCH) {
mac_rlc_data_ind(module_idP,
mac->crnti,
gNB_index,
frameP,
ENB_FLAG_NO,
MBMS_FLAG_NO,
rx_lcid,
(char *) (pduP + mac_subheader_len),
mac_sdu_len,
1,
NULL);
} else {
LOG_E(MAC, "[UE %d] Frame %d : unknown LCID %d (gNB %d)\n", module_idP, frameP, rx_lcid, gNB_index);
}
}
break;
}
pduP += ( mac_subheader_len + mac_ce_len + mac_sdu_len );
pdu_len -= ( mac_subheader_len + mac_ce_len + mac_sdu_len );
if (pdu_len < 0)
LOG_E(MAC, "[MAC] nr_ue_process_mac_pdu, residual mac pdu length %d < 0!\n", pdu_len);
}
}
////////////////////////////////////////////////////////
/////* ULSCH MAC PDU generation (6.1.2 TS 38.321) */////
////////////////////////////////////////////////////////
uint16_t nr_generate_ulsch_pdu(uint8_t *sdus_payload,
uint8_t *pdu,
uint8_t num_sdus,
uint16_t *sdu_lengths,
uint8_t *sdu_lcids,
uint8_t power_headroom,
uint16_t crnti,
uint16_t truncated_bsr,
uint16_t short_bsr,
uint16_t long_bsr,
unsigned short post_padding,
uint16_t buflen) {
NR_MAC_SUBHEADER_FIXED *mac_pdu_ptr = (NR_MAC_SUBHEADER_FIXED *) pdu;
unsigned char last_size = 0, i, mac_header_control_elements[16], *ce_ptr, bsr = 0;
int mac_ce_size;
uint16_t offset = 0;
LOG_D(MAC, "[UE] Generating ULSCH PDU : num_sdus %d\n", num_sdus);
#ifdef DEBUG_HEADER_PARSING
for (i = 0; i < num_sdus; i++)
LOG_D(MAC, "[UE] MAC subPDU %d (lcid %d length %d bytes \n", i, sdu_lcids[i], sdu_lengths[i]);
#endif
// Generating UL MAC subPDUs including MAC SDU and subheader
for (i = 0; i < num_sdus; i++) {
LOG_D(MAC, "[UE] Generating UL MAC subPDUs for SDU with lenght %d ( num_sdus %d )\n", sdu_lengths[i], num_sdus);
if (sdu_lcids[i] != UL_SCH_LCID_CCCH){
if (sdu_lengths[i] < 128) {
((NR_MAC_SUBHEADER_SHORT *) mac_pdu_ptr)->R = 0;
((NR_MAC_SUBHEADER_SHORT *) mac_pdu_ptr)->F = 0;
((NR_MAC_SUBHEADER_SHORT *) mac_pdu_ptr)->LCID = sdu_lcids[i];
((NR_MAC_SUBHEADER_SHORT *) mac_pdu_ptr)->L = (unsigned char) sdu_lengths[i];
last_size = 2;
} else {
((NR_MAC_SUBHEADER_LONG *) mac_pdu_ptr)->R = 0;
((NR_MAC_SUBHEADER_LONG *) mac_pdu_ptr)->F = 1;
((NR_MAC_SUBHEADER_LONG *) mac_pdu_ptr)->LCID = sdu_lcids[i];
((NR_MAC_SUBHEADER_LONG *) mac_pdu_ptr)->L1 = ((unsigned short) sdu_lengths[i] >> 8) & 0x7f;
((NR_MAC_SUBHEADER_LONG *) mac_pdu_ptr)->L2 = (unsigned short) sdu_lengths[i] & 0xff;
last_size = 3;
}
} else { // UL CCCH SDU
mac_pdu_ptr->R = 0;
mac_pdu_ptr->LCID = sdu_lcids[i];
}
mac_pdu_ptr += last_size;
// cycle through SDUs, compute each relevant and place ulsch_buffer in
memcpy((void *) mac_pdu_ptr, (void *) sdus_payload, sdu_lengths[i]);
sdus_payload += sdu_lengths[i];
mac_pdu_ptr += sdu_lengths[i];
}
// Generating UL MAC subPDUs including MAC CEs (MAC CE and subheader)
ce_ptr = &mac_header_control_elements[0];
if (power_headroom) {
// MAC CE fixed subheader
mac_pdu_ptr->R = 0;
mac_pdu_ptr->LCID = UL_SCH_LCID_SINGLE_ENTRY_PHR;
mac_pdu_ptr++;
// PHR MAC CE (1 octet)
((NR_SINGLE_ENTRY_PHR_MAC_CE *) ce_ptr)->PH = power_headroom;
((NR_SINGLE_ENTRY_PHR_MAC_CE *) ce_ptr)->R1 = 0;
((NR_SINGLE_ENTRY_PHR_MAC_CE *) ce_ptr)->PCMAX = 0; // todo
((NR_SINGLE_ENTRY_PHR_MAC_CE *) ce_ptr)->R2 = 0;
mac_ce_size = sizeof(NR_SINGLE_ENTRY_PHR_MAC_CE);
// Copying bytes for PHR MAC CEs to the mac pdu pointer
memcpy((void *) mac_pdu_ptr, (void *) ce_ptr, mac_ce_size);
ce_ptr += mac_ce_size;
mac_pdu_ptr += (unsigned char) mac_ce_size;
}
if (crnti) {
// MAC CE fixed subheader
mac_pdu_ptr->R = 0;
mac_pdu_ptr->LCID = CRNTI;
mac_pdu_ptr++;
// C-RNTI MAC CE (2 octets)
* (uint16_t *) ce_ptr = crnti;
mac_ce_size = sizeof(uint16_t);
// Copying bytes for CRNTI MAC CE to the mac pdu pointer
memcpy((void *) mac_pdu_ptr, (void *) ce_ptr, mac_ce_size);
ce_ptr += mac_ce_size;
mac_pdu_ptr += (unsigned char) mac_ce_size;
}
if (truncated_bsr) {
// MAC CE fixed subheader
mac_pdu_ptr->R = 0;
mac_pdu_ptr->LCID = UL_SCH_LCID_S_TRUNCATED_BSR;
mac_pdu_ptr++;
// Short truncated BSR MAC CE (1 octet)
((NR_BSR_SHORT_TRUNCATED *) ce_ptr)-> Buffer_size = truncated_bsr;
((NR_BSR_SHORT_TRUNCATED *) ce_ptr)-> LcgID = 0; // todo
mac_ce_size = sizeof(NR_BSR_SHORT_TRUNCATED);
bsr = 1 ;
} else if (short_bsr) {
// MAC CE fixed subheader
mac_pdu_ptr->R = 0;
mac_pdu_ptr->LCID = UL_SCH_LCID_S_BSR;
mac_pdu_ptr++;
// Short truncated BSR MAC CE (1 octet)
((NR_BSR_SHORT *) ce_ptr)->Buffer_size = short_bsr;
((NR_BSR_SHORT *) ce_ptr)->LcgID = 0; // todo
mac_ce_size = sizeof(NR_BSR_SHORT);
bsr = 1 ;
} else if (long_bsr) {
// MAC CE variable subheader
// todo ch 6.1.3.1. TS 38.321
// ((NR_MAC_SUBHEADER_SHORT *) mac_pdu_ptr)->R = 0;
// ((NR_MAC_SUBHEADER_SHORT *) mac_pdu_ptr)->F = 0;
// ((NR_MAC_SUBHEADER_SHORT *) mac_pdu_ptr)->LCID = UL_SCH_LCID_L_BSR;
// ((NR_MAC_SUBHEADER_SHORT *) mac_pdu_ptr)->L = 0;
// last_size = 2;
// mac_pdu_ptr += last_size;
// Short truncated BSR MAC CE (1 octet)
// ((NR_BSR_LONG *) ce_ptr)->Buffer_size0 = short_bsr;
// ((NR_BSR_LONG *) ce_ptr)->LCGID0 = 0;
// mac_ce_size = sizeof(NR_BSR_LONG); // size is variable
}
if (bsr){
// Copying bytes for BSR MAC CE to the mac pdu pointer
memcpy((void *) mac_pdu_ptr, (void *) ce_ptr, mac_ce_size);
ce_ptr += mac_ce_size;
mac_pdu_ptr += (unsigned char) mac_ce_size;
}
// compute offset before adding padding (if necessary)
offset = ((unsigned char *) mac_pdu_ptr - pdu);
uint16_t padding_bytes = 0;
if(buflen > 0) // If the buflen is provided
padding_bytes = buflen - offset;
// Compute final offset for padding
if (post_padding > 0 || padding_bytes>0) {
((NR_MAC_SUBHEADER_FIXED *) mac_pdu_ptr)->R = 0;
((NR_MAC_SUBHEADER_FIXED *) mac_pdu_ptr)->LCID = UL_SCH_LCID_PADDING;
mac_pdu_ptr++;
} else {
// no MAC subPDU with padding
}
// compute final offset
offset = ((unsigned char *) mac_pdu_ptr - pdu);
//printf("Offset %d \n", ((unsigned char *) mac_pdu_ptr - pdu));
return offset;
}
uint8_t
nr_ue_get_sdu(module_id_t module_idP, int CC_id, frame_t frameP,
sub_frame_t subframe, uint8_t eNB_index,
uint8_t *ulsch_buffer, uint16_t buflen, uint8_t *access_mode) {
uint8_t total_rlc_pdu_header_len = 0;
int16_t buflen_remain = 0;
uint8_t lcid = 0;
uint16_t sdu_lengths[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
uint8_t sdu_lcids[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
uint16_t payload_offset = 0, num_sdus = 0;
uint8_t ulsch_sdus[MAX_ULSCH_PAYLOAD_BYTES];
uint16_t sdu_length_total = 0;
//unsigned short post_padding = 0;
NR_UE_MAC_INST_t *mac = get_mac_inst(module_idP);
rlc_buffer_occupancy_t lcid_buffer_occupancy_old =
0, lcid_buffer_occupancy_new = 0;
LOG_D(MAC,
"[UE %d] MAC PROCESS UL TRANSPORT BLOCK at frame%d subframe %d TBS=%d\n",
module_idP, frameP, subframe, buflen);
AssertFatal(CC_id == 0,
"Transmission on secondary CCs is not supported yet\n");
// Check for DCCH first
// TO DO: Multiplex in the order defined by the logical channel prioritization
for (lcid = UL_SCH_LCID_SRB1;
lcid < NR_MAX_NUM_LCID; lcid++) {
lcid_buffer_occupancy_old = mac_rlc_get_buffer_occupancy_ind(module_idP, mac->crnti, eNB_index, frameP, subframe, ENB_FLAG_NO, lcid);
lcid_buffer_occupancy_new = lcid_buffer_occupancy_old;
if(lcid_buffer_occupancy_new){
buflen_remain =
buflen - (total_rlc_pdu_header_len + sdu_length_total + MAX_RLC_SDU_SUBHEADER_SIZE);
LOG_D(MAC,
"[UE %d] Frame %d : UL-DXCH -> ULSCH, RLC %d has %d bytes to "
"send (Transport Block size %d SDU Length Total %d , mac header len %d, buflen_remain %d )\n", //BSR byte before Tx=%d
module_idP, frameP, lcid, lcid_buffer_occupancy_new,
buflen, sdu_length_total,
total_rlc_pdu_header_len, buflen_remain); // ,nr_ue_mac_inst->scheduling_info.BSR_bytes[nr_ue_mac_inst->scheduling_info.LCGID[lcid]]
while(buflen_remain > 0 && lcid_buffer_occupancy_new){
sdu_lengths[num_sdus] = mac_rlc_data_req(module_idP,
mac->crnti,
eNB_index,
frameP,
ENB_FLAG_NO,
MBMS_FLAG_NO,
lcid,
buflen_remain,
(char *)&ulsch_sdus[sdu_length_total],0,
0);
AssertFatal(buflen_remain >= sdu_lengths[num_sdus],
"LCID=%d RLC has segmented %d bytes but MAC has max=%d\n",
lcid, sdu_lengths[num_sdus], buflen_remain);
if (sdu_lengths[num_sdus]) {
sdu_length_total += sdu_lengths[num_sdus];
sdu_lcids[num_sdus] = lcid;
total_rlc_pdu_header_len += MAX_RLC_SDU_SUBHEADER_SIZE; //rlc_pdu_header_len_last;
//Update number of SDU
num_sdus++;
}
/* Get updated BO after multiplexing this PDU */
lcid_buffer_occupancy_new = mac_rlc_get_buffer_occupancy_ind(module_idP,
mac->crnti,
eNB_index,
frameP,
subframe,
ENB_FLAG_NO,
lcid);
buflen_remain =
buflen - (total_rlc_pdu_header_len + sdu_length_total + MAX_RLC_SDU_SUBHEADER_SIZE);
}
}
}
// Generate ULSCH PDU
if (num_sdus>0) {
payload_offset = nr_generate_ulsch_pdu(ulsch_sdus,
ulsch_buffer, // mac header
num_sdus, // num sdus
sdu_lengths, // sdu length
sdu_lcids, // sdu lcid
0, // power_headroom
mac->crnti, // crnti
0, // truncated_bsr
0, // short_bsr
0, // long_bsr
0, // post_padding
buflen); // TBS in bytes
}
else
return 0;
// Padding: fill remainder of ULSCH with 0
if (buflen - payload_offset > 0){
for (int j = payload_offset; j < buflen; j++)
ulsch_buffer[j] = 0;
}
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
LOG_I(MAC, "Printing UL MAC payload UE side, payload_offset: %d \n", payload_offset);
for (int i = 0; i < buflen ; i++) {
//harq_process_ul_ue->a[i] = (unsigned char) rand();
//printf("a[%d]=0x%02x\n",i,harq_process_ul_ue->a[i]);
printf("%02x ",(unsigned char)ulsch_buffer[i]);
}
printf("\n");
#endif
return 1;
}
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