189 lines
7.2 KiB
C
189 lines
7.2 KiB
C
/* 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
|
|
*/
|
|
|
|
/************************************************************************
|
|
*
|
|
* MODULE : PUCCH Packed Uplink Control Channel for UE NR
|
|
* PUCCH is used to transmit Uplink Control Information UCI
|
|
* which is composed of:
|
|
* - SR Scheduling Request
|
|
* - HARQ ACK/NACK
|
|
* - CSI Channel State Information
|
|
* UCI can also be transmitted on a PUSCH if it schedules.
|
|
*
|
|
* DESCRIPTION : functions related to PUCCH UCI management
|
|
* TS 38.213 9 UE procedure for reporting control information
|
|
*
|
|
**************************************************************************/
|
|
|
|
#include "executables/softmodem-common.h"
|
|
#include "PHY/NR_REFSIG/ss_pbch_nr.h"
|
|
#include "PHY/defs_nr_UE.h"
|
|
#include <openair1/SCHED/sched_common.h>
|
|
#include <openair1/PHY/NR_UE_TRANSPORT/pucch_nr.h>
|
|
#include "openair1/PHY/NR_UE_ESTIMATION/nr_estimation.h"
|
|
#include <openair1/PHY/impl_defs_nr.h>
|
|
#include <common/utils/nr/nr_common.h>
|
|
#include "SCHED_NR_UE/defs.h"
|
|
#include "SCHED_NR_UE/harq_nr.h"
|
|
|
|
#include "SCHED_NR_UE/pucch_uci_ue_nr.h"
|
|
|
|
long
|
|
binary_search_float_nr(
|
|
float elements[],
|
|
long numElem,
|
|
float value
|
|
)
|
|
//-----------------------------------------------------------------------------
|
|
{
|
|
long first, last, middle;
|
|
first = 0;
|
|
last = numElem-1;
|
|
middle = (first+last)/2;
|
|
|
|
if(value < elements[0]) {
|
|
return first;
|
|
}
|
|
|
|
if(value >= elements[last]) {
|
|
return last;
|
|
}
|
|
|
|
while (last - first > 1) {
|
|
if (elements[middle] > value) {
|
|
last = middle;
|
|
} else {
|
|
first = middle;
|
|
}
|
|
|
|
middle = (first+last)/2;
|
|
}
|
|
|
|
if (first < 0 || first >= numElem) {
|
|
LOG_E(RRC,"\n Error in binary search float!");
|
|
}
|
|
|
|
return first;
|
|
}
|
|
|
|
/*******************************************************************
|
|
*
|
|
* NAME : pucch_procedures_ue_nr
|
|
*
|
|
* PARAMETERS : ue context
|
|
* processing slots of reception/transmission
|
|
* gNB_id identifier
|
|
*
|
|
* RETURN : bool TRUE PUCCH will be transmitted
|
|
* FALSE No PUCCH to transmit
|
|
*
|
|
* DESCRIPTION : determines UCI (uplink Control Information) payload
|
|
* and PUCCH format and its parameters.
|
|
* PUCCH is no transmitted if:
|
|
* - there is no valid data to transmit
|
|
* - Pucch parameters are not valid
|
|
*
|
|
* Below information is scanned in order to know what information should be transmitted to network.
|
|
*
|
|
* (SR Scheduling Request) (HARQ ACK/NACK) (CSI Channel State Information)
|
|
* | | - CQI Channel Quality Indicator
|
|
* | | - RI Rank Indicator
|
|
* | | - PMI Primary Matrux Indicator
|
|
* | | - LI Layer Indicator
|
|
* | | - L1-RSRP
|
|
* | | - CSI-RS resource idicator
|
|
* | V |
|
|
* +-------------------- -> + <------------------
|
|
* |
|
|
* +--------------------------------+
|
|
* | UCI Uplink Control Information |
|
|
* +--------------------------------+
|
|
* V PUCCH Configuration
|
|
* +----------------------------------------+ +--------------------------+
|
|
* | Determine PUCCH payload and its | | PUCCH Resource Set |
|
|
* +----------------------------------------+ | PUCCH Resource |
|
|
* V | Format parameters |
|
|
* +-----------------------------------------+ | |
|
|
* | Select PUCCH format with its parameters | <----------------+--------------------------+
|
|
* +-----------------------------------------+
|
|
* V
|
|
* +-----------------+
|
|
* | Generate PUCCH |
|
|
* +-----------------+
|
|
*
|
|
* TS 38.213 9 UE procedure for reporting control information
|
|
*
|
|
*********************************************************************/
|
|
|
|
void pucch_procedures_ue_nr(PHY_VARS_NR_UE *ue, const UE_nr_rxtx_proc_t *proc, nr_phy_data_tx_t *phy_data, c16_t **txdataF)
|
|
{
|
|
const int nr_slot_tx = proc->nr_slot_tx;
|
|
NR_UE_PUCCH *pucch_vars = &phy_data->pucch_vars;
|
|
|
|
for (int i=0; i<2; i++) {
|
|
if(pucch_vars->active[i]) {
|
|
const fapi_nr_ul_config_pucch_pdu *pucch_pdu = &pucch_vars->pucch_pdu[i];
|
|
uint16_t nb_of_prbs = pucch_pdu->prb_size;
|
|
/* Generate PUCCH signal according to its format and parameters */
|
|
|
|
int16_t pucch_tx_power = pucch_pdu->pucch_tx_power;
|
|
|
|
if (pucch_tx_power > ue->tx_power_max_dBm)
|
|
pucch_tx_power = ue->tx_power_max_dBm;
|
|
|
|
/* set tx power */
|
|
ue->tx_power_dBm[nr_slot_tx] = pucch_tx_power;
|
|
ue->tx_total_RE[nr_slot_tx] = nb_of_prbs*N_SC_RB;
|
|
|
|
int tx_amp;
|
|
|
|
/*
|
|
tx_amp = nr_get_tx_amp(pucch_tx_power,
|
|
ue->tx_power_max_dBm,
|
|
ue->frame_parms.N_RB_UL,
|
|
nb_of_prbs);
|
|
if (tx_amp == 0)*/
|
|
// FIXME temporarly using fixed amplitude before pucch power control implementation revised
|
|
tx_amp = AMP;
|
|
|
|
|
|
LOG_D(PHY,"Generation of PUCCH format %d at frame.slot %d.%d\n",pucch_pdu->format_type,proc->frame_tx,nr_slot_tx);
|
|
|
|
switch(pucch_pdu->format_type) {
|
|
case 0:
|
|
nr_generate_pucch0(ue, txdataF, &ue->frame_parms, tx_amp, nr_slot_tx, pucch_pdu);
|
|
break;
|
|
case 1:
|
|
nr_generate_pucch1(ue, txdataF, &ue->frame_parms, tx_amp, nr_slot_tx, pucch_pdu);
|
|
break;
|
|
case 2:
|
|
nr_generate_pucch2(ue, txdataF, &ue->frame_parms, tx_amp, nr_slot_tx, pucch_pdu);
|
|
break;
|
|
case 3:
|
|
case 4:
|
|
nr_generate_pucch3_4(ue, txdataF, &ue->frame_parms, tx_amp, nr_slot_tx, pucch_pdu);
|
|
break;
|
|
}
|
|
}
|
|
pucch_vars->active[i] = false;
|
|
}
|
|
}
|