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openairinterface5g/openair1/SCHED_NR/phy_frame_config_nr.c
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Mahesh 7f4ffe29c8 Fix whitespaces
2021-02-12 01:25:09 +05:30

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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
*/
/***********************************************************************
*
* FILENAME : phy_frame_configuration_nr.c
*
* DESCRIPTION : functions related to FDD/TDD configuration for NR
* see TS 38.213 11.1 Slot configuration
* and TS 38.331 for RRC configuration
*
************************************************************************/
#include "PHY/defs_nr_common.h"
#include "PHY/defs_nr_UE.h"
#include "SCHED_NR/phy_frame_config_nr.h"
/*******************************************************************
*
* NAME : set_tdd_configuration
*
* PARAMETERS : pointer to frame configuration
*
* OUTPUT: table of uplink symbol for each slot for 2 frames
*
* RETURN : 0 if tdd has been properly configurated
* -1 tdd configuration can not be done
*
* DESCRIPTION : generate bit map for uplink symbol for each slot for several frames
* see TS 38.213 11.1 Slot configuration
*
*********************************************************************/
int set_tdd_config_nr( nfapi_nr_config_request_scf_t *cfg,
int mu,
int nrofDownlinkSlots, int nrofDownlinkSymbols,
int nrofUplinkSlots, int nrofUplinkSymbols) {
int slot_number = 0;
int nb_periods_per_frame;
int nb_slots_to_set = TDD_CONFIG_NB_FRAMES*(1<<mu)*NR_NUMBER_OF_SUBFRAMES_PER_FRAME;
switch(cfg->tdd_table.tdd_period.value) {
case 0:
nb_periods_per_frame = 20; // 10ms/0p5ms
break;
case 1:
nb_periods_per_frame = 16; // 10ms/0p625ms
break;
case 2:
nb_periods_per_frame = 10; // 10ms/1ms
break;
case 3:
nb_periods_per_frame = 8; // 10ms/1p25ms
break;
case 4:
nb_periods_per_frame = 5; // 10ms/2ms
break;
case 5:
nb_periods_per_frame = 4; // 10ms/2p5ms
break;
case 6:
nb_periods_per_frame = 2; // 10ms/5ms
break;
case 7:
nb_periods_per_frame = 1; // 10ms/10ms
break;
default:
AssertFatal(1==0,"Undefined tdd period %d\n", cfg->tdd_table.tdd_period.value);
}
int nb_slots_per_period = ((1<<mu) * NR_NUMBER_OF_SUBFRAMES_PER_FRAME)/nb_periods_per_frame;
if ( (nrofDownlinkSymbols + nrofUplinkSymbols) == 0 )
AssertFatal(nb_slots_per_period == (nrofDownlinkSlots + nrofUplinkSlots),
"set_tdd_configuration_nr: given period is inconsistent with current tdd configuration, nrofDownlinkSlots %d, nrofUplinkSlots %d, nb_slots_per_period %d \n",
nrofDownlinkSlots,nrofUplinkSlots,nb_slots_per_period);
else {
AssertFatal(nrofDownlinkSymbols + nrofUplinkSymbols < 14,"illegal symbol configuration DL %d, UL %d\n",nrofDownlinkSymbols,nrofUplinkSymbols);
AssertFatal(nb_slots_per_period == (nrofDownlinkSlots + nrofUplinkSlots + 1),
"set_tdd_configuration_nr: given period is inconsistent with current tdd configuration, nrofDownlinkSlots %d, nrofUplinkSlots %d, nrofMixed slots 1, nb_slots_per_period %d \n",
nrofDownlinkSlots,nrofUplinkSlots,nb_slots_per_period);
}
cfg->tdd_table.max_tdd_periodicity_list = (nfapi_nr_max_tdd_periodicity_t *) malloc(nb_slots_to_set*sizeof(nfapi_nr_max_tdd_periodicity_t));
for(int memory_alloc =0 ; memory_alloc<nb_slots_to_set; memory_alloc++)
cfg->tdd_table.max_tdd_periodicity_list[memory_alloc].max_num_of_symbol_per_slot_list = (nfapi_nr_max_num_of_symbol_per_slot_t *) malloc(NR_NUMBER_OF_SYMBOLS_PER_SLOT*sizeof(
nfapi_nr_max_num_of_symbol_per_slot_t));
while(slot_number != nb_slots_to_set) {
if(nrofDownlinkSlots != 0) {
for (int number_of_symbol = 0; number_of_symbol < nrofDownlinkSlots*NR_NUMBER_OF_SYMBOLS_PER_SLOT; number_of_symbol++) {
cfg->tdd_table.max_tdd_periodicity_list[slot_number].max_num_of_symbol_per_slot_list[number_of_symbol%NR_NUMBER_OF_SYMBOLS_PER_SLOT].slot_config.value= 0;
if((number_of_symbol+1)%NR_NUMBER_OF_SYMBOLS_PER_SLOT == 0)
slot_number++;
}
}
if (nrofDownlinkSymbols != 0 || nrofUplinkSymbols != 0) {
for(int number_of_symbol =0; number_of_symbol < nrofDownlinkSymbols; number_of_symbol++) {
cfg->tdd_table.max_tdd_periodicity_list[slot_number].max_num_of_symbol_per_slot_list[number_of_symbol].slot_config.value= 0;
}
for(int number_of_symbol = nrofDownlinkSymbols; number_of_symbol < NR_NUMBER_OF_SYMBOLS_PER_SLOT-nrofUplinkSymbols; number_of_symbol++) {
cfg->tdd_table.max_tdd_periodicity_list[slot_number].max_num_of_symbol_per_slot_list[number_of_symbol].slot_config.value= 2;
}
for(int number_of_symbol = NR_NUMBER_OF_SYMBOLS_PER_SLOT-nrofUplinkSymbols; number_of_symbol < NR_NUMBER_OF_SYMBOLS_PER_SLOT; number_of_symbol++) {
cfg->tdd_table.max_tdd_periodicity_list[slot_number].max_num_of_symbol_per_slot_list[number_of_symbol].slot_config.value= 1;
}
slot_number++;
}
if(nrofUplinkSlots != 0) {
for (int number_of_symbol = 0; number_of_symbol < nrofUplinkSlots*NR_NUMBER_OF_SYMBOLS_PER_SLOT; number_of_symbol++) {
cfg->tdd_table.max_tdd_periodicity_list[slot_number].max_num_of_symbol_per_slot_list[number_of_symbol%NR_NUMBER_OF_SYMBOLS_PER_SLOT].slot_config.value= 1;
if((number_of_symbol+1)%NR_NUMBER_OF_SYMBOLS_PER_SLOT == 0)
slot_number++;
}
}
}
/*
while(slot_number != nb_slots_to_set) {
for (int number_of_slot = 0; number_of_slot < nrofDownlinkSlots; number_of_slot++) {
frame_parms->tdd_uplink_nr[slot_number] = NR_TDD_DOWNLINK_SLOT;
printf("slot %d set as downlink\n",slot_number);
slot_number++;
}
if (nrofDownlinkSymbols != 0 || nrofUplinkSymbols != 0) {
frame_parms->tdd_uplink_nr[slot_number] = (1<<nrofUplinkSymbols) - 1;
printf("slot %d set as SL\n",slot_number);
slot_number++;
}
for (int number_of_slot = 0; number_of_slot < nrofUplinkSlots; number_of_slot++) {
frame_parms->tdd_uplink_nr[slot_number] = NR_TDD_UPLINK_SLOT;
printf("slot %d set as uplink\n",slot_number);
slot_number++;
}
if (p_tdd_ul_dl_configuration->nrofUplinkSymbols != 0) {
LOG_E(PHY,"set_tdd_configuration_nr: uplink symbol for slot is not supported for tdd configuration \n");
return (-1);
}
}
if (frame_parms->p_tdd_UL_DL_ConfigurationCommon2 != NULL) {
LOG_E(PHY,"set_tdd_configuration_nr: additionnal tdd configuration 2 is not supported for tdd configuration \n");
return (-1);
}*/
return (0);
}
/*******************************************************************
*
* NAME : add_tdd_dedicated_configuration_nr
*
* PARAMETERS : pointer to frame configuration
*
* OUTPUT: table of uplink symbol for each slot for several frames
*
* RETURN : 0 if tdd has been properly configurated
* -1 tdd configuration can not be done
*
* DESCRIPTION : generate bit map for uplink symbol for each slot for several frames
* see TS 38.213 11.1 Slot configuration
*
*********************************************************************/
void add_tdd_dedicated_configuration_nr(NR_DL_FRAME_PARMS *frame_parms, int slotIndex, int nrofDownlinkSymbols, int nrofUplinkSymbols) {
TDD_UL_DL_SlotConfig_t *p_TDD_UL_DL_ConfigDedicated = frame_parms->p_TDD_UL_DL_ConfigDedicated;
TDD_UL_DL_SlotConfig_t *p_previous_TDD_UL_DL_ConfigDedicated=NULL;
int next = 0;
while (p_TDD_UL_DL_ConfigDedicated != NULL) {
p_previous_TDD_UL_DL_ConfigDedicated = p_TDD_UL_DL_ConfigDedicated;
p_TDD_UL_DL_ConfigDedicated = (TDD_UL_DL_SlotConfig_t *)(p_TDD_UL_DL_ConfigDedicated->p_next_TDD_UL_DL_SlotConfig);
next = 1;
}
p_TDD_UL_DL_ConfigDedicated = calloc( 1, sizeof(TDD_UL_DL_SlotConfig_t));
//printf("allocate pt %p \n", p_TDD_UL_DL_ConfigDedicated);
if (p_TDD_UL_DL_ConfigDedicated == NULL) {
printf("Error test_frame_configuration: memory allocation problem \n");
assert(0);
}
if (next == 0) {
frame_parms->p_TDD_UL_DL_ConfigDedicated = p_TDD_UL_DL_ConfigDedicated;
} else {
p_previous_TDD_UL_DL_ConfigDedicated->p_next_TDD_UL_DL_SlotConfig = (struct TDD_UL_DL_SlotConfig_t *)p_TDD_UL_DL_ConfigDedicated;
}
p_TDD_UL_DL_ConfigDedicated->slotIndex = slotIndex;
p_TDD_UL_DL_ConfigDedicated->nrofDownlinkSymbols = nrofDownlinkSymbols;
p_TDD_UL_DL_ConfigDedicated->nrofUplinkSymbols = nrofUplinkSymbols;
}
/*******************************************************************
*
* NAME : set_tdd_configuration_dedicated_nr
*
* PARAMETERS : pointer to frame configuration
*
* OUTPUT: table of uplink symbol for each slot for several frames
*
* RETURN : 0 if tdd has been properly configurated
* -1 tdd configuration can not be done
*
* DESCRIPTION : generate bit map for uplink symbol for each slot for several frames
* see TS 38.213 11.1 Slot configuration
*
*********************************************************************/
int set_tdd_configuration_dedicated_nr(NR_DL_FRAME_PARMS *frame_parms) {
TDD_UL_DL_SlotConfig_t *p_current_TDD_UL_DL_SlotConfig;
p_current_TDD_UL_DL_SlotConfig = frame_parms->p_TDD_UL_DL_ConfigDedicated;
NR_TST_PHY_PRINTF("\nSet tdd dedicated configuration\n ");
while(p_current_TDD_UL_DL_SlotConfig != NULL) {
int slot_index = p_current_TDD_UL_DL_SlotConfig->slotIndex;
if (slot_index < TDD_CONFIG_NB_FRAMES * frame_parms->slots_per_frame) {
if (p_current_TDD_UL_DL_SlotConfig->nrofDownlinkSymbols != 0) {
if (p_current_TDD_UL_DL_SlotConfig->nrofDownlinkSymbols == NR_TDD_SET_ALL_SYMBOLS) {
if (p_current_TDD_UL_DL_SlotConfig->nrofUplinkSymbols == 0) {
frame_parms->tdd_uplink_nr[slot_index] = NR_TDD_DOWNLINK_SLOT;
NR_TST_PHY_PRINTF(" DL[%d] ", slot_index);
} else {
LOG_E(PHY,"set_tdd_configuration_dedicated_nr: tdd downlink & uplink symbol configuration is not supported \n");
return (-1);
}
} else {
LOG_E(PHY,"set_tdd_configuration_dedicated_nr: tdd downlink symbol configuration is not supported \n");
return (-1);
}
} else if (p_current_TDD_UL_DL_SlotConfig->nrofUplinkSymbols != 0) {
if (p_current_TDD_UL_DL_SlotConfig->nrofUplinkSymbols == NR_TDD_SET_ALL_SYMBOLS) {
frame_parms->tdd_uplink_nr[slot_index] = NR_TDD_UPLINK_SLOT;
NR_TST_PHY_PRINTF(" UL[%d] ", slot_index);
} else {
LOG_E(PHY,"set_tdd_configuration_dedicated_nr: tdd uplink symbol configuration is not supported \n");
return (-1);
}
} else {
LOG_E(PHY,"set_tdd_configuration_dedicated_nr: no tdd symbol configuration is specified \n");
return (-1);
}
} else {
LOG_E(PHY,"set_tdd_configuration_dedicated_nr: tdd slot index exceeds maximum value \n");
return (-1);
}
p_current_TDD_UL_DL_SlotConfig = (TDD_UL_DL_SlotConfig_t *)(p_current_TDD_UL_DL_SlotConfig->p_next_TDD_UL_DL_SlotConfig);
}
NR_TST_PHY_PRINTF("\n");
return (0);
}
/*******************************************************************
*
* NAME : set_tdd_configuration
*
* PARAMETERS : pointer to tdd common configuration
* pointer to tdd common configuration2
* pointer to tdd dedicated configuration
*
* OUTPUT: table of uplink symbol for each slot for 2 frames
*
* RETURN : 0 if srs sequence has been successfully generated
* -1 if sequence can not be properly generated
*
* DESCRIPTION : generate bit map for uplink symbol for each slot for 2 frames
* see TS 38.213 11.1 Slot configuration
*
*********************************************************************/
int nr_slot_select(nfapi_nr_config_request_scf_t *cfg, int nr_frame, int nr_tti) {
/* for FDD all slot can be considered as an uplink */
int mu = cfg->ssb_config.scs_common.value,check_slot=0;
if (cfg->cell_config.frame_duplex_type.value == FDD) {
return (NR_UPLINK_SLOT | NR_DOWNLINK_SLOT );
}
if (nr_frame%2 == 0) {
for(int symbol_count=0; symbol_count<NR_NUMBER_OF_SYMBOLS_PER_SLOT; symbol_count++) {
if (cfg->tdd_table.max_tdd_periodicity_list[nr_tti].max_num_of_symbol_per_slot_list[symbol_count].slot_config.value==1) {
check_slot++;
}
}
if(check_slot == NR_NUMBER_OF_SYMBOLS_PER_SLOT) {
return (NR_UPLINK_SLOT);
}
check_slot = 0;
for(int symbol_count=0; symbol_count<NR_NUMBER_OF_SYMBOLS_PER_SLOT; symbol_count++) {
if (cfg->tdd_table.max_tdd_periodicity_list[nr_tti].max_num_of_symbol_per_slot_list[symbol_count].slot_config.value==0) {
check_slot++;
}
}
if(check_slot == NR_NUMBER_OF_SYMBOLS_PER_SLOT) {
return (NR_DOWNLINK_SLOT);
} else {
return (NR_MIXED_SLOT);
}
} else {
for(int symbol_count=0; symbol_count<NR_NUMBER_OF_SYMBOLS_PER_SLOT; symbol_count++) {
if (cfg->tdd_table.max_tdd_periodicity_list[((1<<mu) * NR_NUMBER_OF_SUBFRAMES_PER_FRAME) + nr_tti].max_num_of_symbol_per_slot_list[symbol_count].slot_config.value==1) {
check_slot++;
}
}
if(check_slot == NR_NUMBER_OF_SYMBOLS_PER_SLOT) {
return (NR_UPLINK_SLOT);
}
check_slot = 0;
for(int symbol_count=0; symbol_count<NR_NUMBER_OF_SYMBOLS_PER_SLOT; symbol_count++) {
if (cfg->tdd_table.max_tdd_periodicity_list[((1<<mu) * NR_NUMBER_OF_SUBFRAMES_PER_FRAME) + nr_tti].max_num_of_symbol_per_slot_list[symbol_count].slot_config.value==0) {
check_slot++;
}
}
if(check_slot == NR_NUMBER_OF_SYMBOLS_PER_SLOT) {
return (NR_DOWNLINK_SLOT);
} else {
return (NR_MIXED_SLOT);
}
}
}
/*******************************************************************
*
* NAME : free_tdd_configuration_nr
*
* PARAMETERS : pointer to frame configuration
*
* RETURN : none
*
* DESCRIPTION : free structure related to tdd configuration
*
*********************************************************************/
void free_tdd_configuration_nr(NR_DL_FRAME_PARMS *frame_parms) {
TDD_UL_DL_configCommon_t *p_tdd_UL_DL_Configuration = frame_parms->p_tdd_UL_DL_Configuration;
free_tdd_configuration_dedicated_nr(frame_parms);
if (p_tdd_UL_DL_Configuration != NULL) {
frame_parms->p_tdd_UL_DL_Configuration = NULL;
free(p_tdd_UL_DL_Configuration);
}
for (int number_of_slot = 0; number_of_slot < NR_MAX_SLOTS_PER_FRAME; number_of_slot++) {
frame_parms->tdd_uplink_nr[number_of_slot] = NR_TDD_DOWNLINK_SLOT;
}
}
/*******************************************************************
*
* NAME : free_tdd_configuration_dedicated_nr
*
* PARAMETERS : pointer to frame configuration
*
* RETURN : none
*
* DESCRIPTION : free structure related to tdd dedicated configuration
*
*********************************************************************/
void free_tdd_configuration_dedicated_nr(NR_DL_FRAME_PARMS *frame_parms) {
TDD_UL_DL_SlotConfig_t *p_current_TDD_UL_DL_ConfigDedicated = frame_parms->p_TDD_UL_DL_ConfigDedicated;
TDD_UL_DL_SlotConfig_t *p_next_TDD_UL_DL_ConfigDedicated;
int next = 0;
if (p_current_TDD_UL_DL_ConfigDedicated != NULL) {
do {
if (p_current_TDD_UL_DL_ConfigDedicated->p_next_TDD_UL_DL_SlotConfig != NULL) {
next = 1;
p_next_TDD_UL_DL_ConfigDedicated = (TDD_UL_DL_SlotConfig_t *)(p_current_TDD_UL_DL_ConfigDedicated->p_next_TDD_UL_DL_SlotConfig);
p_current_TDD_UL_DL_ConfigDedicated->p_next_TDD_UL_DL_SlotConfig = NULL;
//printf("free pt %p \n", p_current_TDD_UL_DL_ConfigDedicated);
free(p_current_TDD_UL_DL_ConfigDedicated);
p_current_TDD_UL_DL_ConfigDedicated = p_next_TDD_UL_DL_ConfigDedicated;
} else {
if (p_current_TDD_UL_DL_ConfigDedicated != NULL) {
frame_parms->p_TDD_UL_DL_ConfigDedicated = NULL;
//printf("free pt %p \n", p_current_TDD_UL_DL_ConfigDedicated);
free(p_current_TDD_UL_DL_ConfigDedicated);
next = 0;
}
}
} while (next);
}
}
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