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Time Alignment procedure with time adjustment as per TS 38.213 section 4.2

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- UE processing capability 1
- Setting the TA update to be applied after the reception of the TA command
- Durations of N1 and N2 symbols corresponding to PDSCH and PUSCH are
  computed according to sections 5.3 and 6.4 of TS 38.214
- Introduced tables 5.3-1, 5.3-2, 6.4-1, 6.4-2 from TS 38.214
This commit is contained in:
Guido Casati
2019-12-06 10:46:51 +01:00
committed by cig
parent c6855cb8d2
commit 0b873bb620
4 changed files with 203 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/INIT/nr_init_ue.c
+10
View File
@@ -703,11 +703,21 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue,
ue->pusch_config.pusch_TimeDomainResourceAllocation[i]->mappingType = typeA;
}
for (i=0;i<MAX_NR_OF_DL_ALLOCATIONS;i++){
ue->PDSCH_Config.pdsch_TimeDomainResourceAllocation[i] = (NR_PDSCH_TimeDomainResourceAllocation_t *)malloc16(sizeof(NR_PDSCH_TimeDomainResourceAllocation_t));
ue->PDSCH_Config.pdsch_TimeDomainResourceAllocation[i]->mappingType = typeA;
}
//------------- config DMRS parameters--------------//
ue->dmrs_UplinkConfig.pusch_dmrs_type = pusch_dmrs_type1;
ue->dmrs_UplinkConfig.pusch_dmrs_AdditionalPosition = pusch_dmrs_pos0;
ue->dmrs_UplinkConfig.pusch_maxLength = pusch_len1;
//-------------------------------------------------//
ue->dmrs_DownlinkConfig.pdsch_dmrs_type = pdsch_dmrs_type1;
ue->dmrs_DownlinkConfig.pdsch_dmrs_AdditionalPosition = pdsch_dmrs_pos0;
ue->dmrs_DownlinkConfig.pdsch_maxLength = pdsch_len1;
//-------------------------------------------------//
ue->nr_gold_pusch_dmrs = (uint32_t ****)malloc16(fp->slots_per_frame*sizeof(uint32_t ***));
pusch_dmrs = ue->nr_gold_pusch_dmrs;
n_scid = 0; // This quantity is indicated by higher layer parameter dmrs-SeqInitialization
openair1/PHY/impl_defs_nr.h
+7 -3
View File
@@ -36,6 +36,7 @@
#include <stdbool.h>
#include "types.h"
#include "NR_PDSCH-TimeDomainResourceAllocation.h"
#ifdef DEFINE_VARIABLES_PHY_IMPLEMENTATION_DEFS_NR_H
#define EXTERN
@@ -377,8 +378,10 @@ typedef enum {
////////////////////////////////////////////////////////////////////////////////################################
#define MAX_NR_RATE_MATCH_PATTERNS 4
#define MAX_NR_ZP_CSI_RS_RESOURCES 32
#define MAX_NR_RATE_MATCH_PATTERNS 4
#define MAX_NR_ZP_CSI_RS_RESOURCES 32
#define MAX_NR_OF_DL_ALLOCATIONS 16
#define MAX_NR_OF_UL_ALLOCATIONS (16)
typedef enum{
dl_resourceAllocationType0 = 1,
@@ -473,6 +476,8 @@ typedef struct {
*/
maxNrofCodeWordsScheduledByDCI_t maxNrofCodeWordsScheduledByDCI;
NR_PDSCH_TimeDomainResourceAllocation_t *pdsch_TimeDomainResourceAllocation[MAX_NR_OF_DL_ALLOCATIONS];
} PDSCH_Config_t;
/***********************************************************************
@@ -483,7 +488,6 @@ typedef struct {
*
************************************************************************/
#define MAX_NR_OF_UL_ALLOCATIONS (16)
typedef enum {
enable_tpc_accumulation = 0, /* by default it is enable */
openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
+77 -3
View File
@@ -45,6 +45,7 @@
//#include "PHY/extern.h"
#include "SCHED_NR_UE/defs.h"
#include "SCHED_NR/extern.h"
#include "SCHED_NR_UE/phy_sch_processing_time.h"
//#include <sched.h>
//#include "targets/RT/USER/nr-softmodem.h"
#include "PHY/NR_UE_ESTIMATION/nr_estimation.h"
@@ -3549,7 +3550,17 @@ void nr_ue_dlsch_procedures(PHY_VARS_NR_UE *ue,
NR_UL_TIME_ALIGNMENT_t *ul_time_alignment = &ue->ul_time_alignment[eNB_id];
unsigned char *apply_ta = &ul_time_alignment->apply_ta;
uint16_t slots_per_frame = ue->frame_parms.slots_per_frame;
int ul_tx_timing_adjustment = 6; // temporary hardcoded
uint16_t slots_per_subframe = ue->frame_parms.slots_per_subframe;
uint8_t numerology = ue->frame_parms.numerology_index, mapping_type_ul, mapping_type_dl;
int ul_tx_timing_adjustment, N_TA_max, factor_mu, N_t_1, N_t_2, N_1, N_2, d_1_1, d_2_1, d;
uint8_t d_2_2 = 0;// set to 0 because there is only 1 BWP
// TODO this should corresponds to the switching time as defined in
// TS 38.133
uint16_t ofdm_symbol_size = ue->frame_parms.ofdm_symbol_size;
uint16_t nb_prefix_samples = ue->frame_parms.nb_prefix_samples;
uint32_t t_subframe = 1; // subframe duration of 1 msec
uint16_t bw_scaling, start_symbol;
float tc_factor;
if (dlsch0==NULL)
AssertFatal(0,"dlsch0 should be defined at this level \n");
@@ -3558,6 +3569,7 @@ void nr_ue_dlsch_procedures(PHY_VARS_NR_UE *ue,
harq_pid = dlsch0->current_harq_pid;
is_cw0_active = dlsch0->harq_processes[harq_pid]->status;
nb_symb_sch = dlsch0->harq_processes[harq_pid]->nb_symbols;
start_symbol = dlsch0->harq_processes[harq_pid]->start_symbol;
@@ -3887,8 +3899,70 @@ void nr_ue_dlsch_procedures(PHY_VARS_NR_UE *ue,
break;
}
/* Time alignment procedure set the TA to be applied 6 slots
// after the reception of the command */
// scale the 16 factor in N_TA calculation in 38.213 section 4.2 according to the used FFT size
switch (ue->frame_parms.N_RB_DL) {
case 106: bw_scaling = 16; break;
case 217: bw_scaling = 32; break;
case 245: bw_scaling = 32; break;
case 273: bw_scaling = 32; break;
default: abort();
}
/* Time Alignment procedure
// - UE processing capability 1
// - Setting the TA update to be applied after the reception of the TA command
// - Timing adjustment computed according to TS 38.213 section 4.2
// - Durations of N1 and N2 symbols corresponding to PDSCH and PUSCH are
// computed according to sections 5.3 and 6.4 of TS 38.214 */
factor_mu = 1 << numerology;
N_TA_max = 3846 * bw_scaling / factor_mu;
/* PDSCH decoding time N_1 for processing capability 1 */
if (ue->dmrs_DownlinkConfig.pdsch_dmrs_AdditionalPosition == pdsch_dmrs_pos0)
N_1 = pdsch_N_1_capability_1[numerology][1];
else if (ue->dmrs_DownlinkConfig.pdsch_dmrs_AdditionalPosition == pdsch_dmrs_pos1 || ue->dmrs_DownlinkConfig.pdsch_dmrs_AdditionalPosition == 2) // TODO set to pdsch_dmrs_pos2 when available
N_1 = pdsch_N_1_capability_1[numerology][2];
else
N_1 = pdsch_N_1_capability_1[numerology][3];
/* PUSCH preapration time N_2 for processing capability 1 */
N_2 = pusch_N_2_timing_capability_1[numerology][1];
mapping_type_dl = ue->PDSCH_Config.pdsch_TimeDomainResourceAllocation[0]->mappingType;
mapping_type_ul = ue->pusch_config.pusch_TimeDomainResourceAllocation[0]->mappingType;
/* d_1_1 depending on the number of PDSCH symbols allocated */
d = 0; // TODO number of overlapping symbols of the scheduling PDCCH and the scheduled PDSCH
if (mapping_type_dl == typeA)
if (nb_symb_sch + start_symbol < 7)
d_1_1 = 7 - (nb_symb_sch + start_symbol);
else
d_1_1 = 0;
else // mapping type B
switch (nb_symb_sch){
case 7: d_1_1 = 0; break;
case 4: d_1_1 = 3; break;
case 2: d_1_1 = 3 + d; break;
default: break;
}
/* d_2_1 */
if (mapping_type_ul == typeB && start_symbol != 0)
d_2_1 = 0;
else
d_2_1 = 1;
/* N_t_1 time duration in msec of N_1 symbols corresponding to a PDSCH reception time
// N_t_2 time duration in msec of N_2 symbols corresponding to a PUSCH preparation time */
N_t_1 = (N_1 + d_1_1) * (ofdm_symbol_size + nb_prefix_samples) / factor_mu;
N_t_2 = (N_2 + d_2_1) * (ofdm_symbol_size + nb_prefix_samples) / factor_mu;
if (N_t_2 < d_2_2) N_t_2 = d_2_2;
/* Time alignment procedure */
// N_t_1 + N_t_2 + N_TA_max is in unit of Ts, therefore must be converted to Tc
// N_t_1 + N_t_2 + N_TA_max must be in msec
tc_factor = 64 * 0.509 * 10e-7;
ul_tx_timing_adjustment = 1 + ceil(slots_per_subframe*((N_t_1 + N_t_2 + N_TA_max)*tc_factor + 0.5)/t_subframe);
if (ul_time_alignment->apply_ta == 1){
ul_time_alignment->ta_slot = (nr_tti_rx + ul_tx_timing_adjustment) % slots_per_frame;
if (nr_tti_rx + ul_tx_timing_adjustment > slots_per_frame){
openair1/SCHED_NR_UE/phy_sch_processing_time.h
+109
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@@ -0,0 +1,109 @@
/*
* 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 phy_sch_processing_time.h
\brief tables for UE PDSCH processing and UE PUSCH preparation procedure time
from TS 38.214 Physical procedures for data v15.6.0
\author Guido Casati
\date 2019
\version 0.1
\company Fraunhofer IIS
\email: guido.casati@iis.fraunhofer.de
\note
\warning
*/
/* TS 38.214 Table 5.3-1: PDSCH processing time for PDSCH processing capability 1
// corresponding to the PDSCH decoding time N_1 [symbols]
// where mu corresponds to the one of {mu_PDCCH, mu_PDSCH, mu_UL}
// resulting with the largest T_proc_1
// where mu_PDCCH is the SCS of PDCCH scheduling PDSCH
// mu_PDSCH is the SCS of the scheduled PDSCH
// mu_UL is the SCS of the UL channel with which the HARQ-ACK is to be transmitted
// column A is N_1 corresponding to dmrs-AdditionalPosition pos0 in DMRS-DownlinkConfig
// in both dmrs-DownlinkForPDSCH-MappingTypeA and dmrs-DownlinkForPDSCH-MappingTypeB
// column B is N_1 corresponding to corresponds to dmrs-AdditionalPosition !0
// in DMRS-DownlinkConfig in both dmrs-DownlinkForPDSCH-MappingTypeA,
// dmrs-DownlinkForPDSCH-MappingTypeB or if the higher layer param is not configured
// when PDSCH DM-RS position l1 for the additional DM-RS is l1 = 1,2
// column C is N_1 corresponding to corresponds to dmrs-AdditionalPosition !0
// in DMRS-DownlinkConfig in both dmrs-DownlinkForPDSCH-MappingTypeA,
// dmrs-DownlinkForPDSCH-MappingTypeB or if the higher layer param is not configured
// when PDSCH DM-RS position l1 for the additional DM-RS is != 1,2
*/
int8_t pdsch_N_1_capability_1[4][4] = {
/* mu A B C */
{ 0, 8, 14, 13 },
{ 1, 10, 13, 13 },
{ 2, 17, 20, 20 },
{ 3, 20, 24, 24 },
};
/* TS 38.214 Table 5.3-2: PDSCH processing time for PDSCH processing capability 2
// corresponding to the PDSCH decoding time N_1 [symbols]
// where mu corresponds to the one of {mu_PDCCH, mu_PDSCH, mu_UL}
// resulting with the largest T_proc_1
// where mu_PDCCH is the SCS of PDCCH scheduling PDSCH
// mu_PDSCH is the SCS of the scheduled PDSCH
// mu_UL is the SCS of the UL channel with which the HARQ-ACK is to be transmitted
// column A is N_1 corresponding to dmrs-AdditionalPosition pos0 in DMRS-DownlinkConfig in both
// dmrs-DownlinkForPDSCH-MappingTypeA and dmrs-DownlinkForPDSCH-MappingTypeB
// mu == 2 is for FR1 only
*/
float pdsch_N_1_capability_2[3][2] = {
/* mu A */
{ 0, 3 },
{ 1, 4.5 },
{ 2, 9 },
};
/* TS 38.214 Table 6.4-1: PUSCH preparation time for PUSCH timing capability 1
// corresponding to the PUSCH preparation time N_2 [symbols]
// where mu corresponds to the one of {mu_DL, mu_UL}
// resulting with the largest T_proc_2
// where mu_DL is the SCS with which the PDCCH
// carrying the DCI scheduling the PUSCH was transmitted
// mu_UL is the SCS of the UL channel with which PUSCH to be transmitted
*/
int8_t pusch_N_2_timing_capability_1[4][2] = {
/* mu N_2 */
{ 0, 10 },
{ 1, 12 },
{ 2, 23 },
{ 3, 36 },
};
/* TS 38.214 Table 6.4-2: PUSCH preparation time for PUSCH timing capability 2
// corresponding to the PUSCH preparation time N_2 [symbols]
// where mu corresponds to the one of {mu_DL, mu_UL}
// resulting with the largest T_proc_2
// where mu_DL is the SCS with which the PDCCH
// carrying the DCI scheduling the PUSCH was transmitted
// mu_UL is the SCS of the UL channel with which PUSCH to be transmitted
// mu == 2 is for FR1 only
*/
float pusch_N_2_timing_capability_2[3][2] = {
/* mu N_2 */
{ 0, 5 },
{ 1, 5.5 },
{ 2, 11 },
};