Bartosz Podrygajlo
0161a1c4fd
After processing TX frequency domain data skip IFFT call for symbols that aren't used, the time domain buffer is memset instead.
196 lines
7.5 KiB
C
196 lines
7.5 KiB
C
/* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/************************************************************************
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*
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* MODULE : PUCCH Packed Uplink Control Channel for UE NR
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* PUCCH is used to transmit Uplink Control Information UCI
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* which is composed of:
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* - SR Scheduling Request
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* - HARQ ACK/NACK
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* - CSI Channel State Information
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* UCI can also be transmitted on a PUSCH if it schedules.
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*
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* DESCRIPTION : functions related to PUCCH UCI management
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* TS 38.213 9 UE procedure for reporting control information
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*
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**************************************************************************/
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#include "executables/softmodem-common.h"
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#include "PHY/NR_REFSIG/ss_pbch_nr.h"
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#include "PHY/defs_nr_UE.h"
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#include <openair1/SCHED/sched_common.h>
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#include <openair1/PHY/NR_UE_TRANSPORT/pucch_nr.h>
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#include "openair1/PHY/NR_UE_ESTIMATION/nr_estimation.h"
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#include <openair1/PHY/impl_defs_nr.h>
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#include <common/utils/nr/nr_common.h>
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#include "SCHED_NR_UE/defs.h"
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#include "SCHED_NR_UE/harq_nr.h"
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#include "SCHED_NR_UE/pucch_uci_ue_nr.h"
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long
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binary_search_float_nr(
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float elements[],
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long numElem,
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float value
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)
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//-----------------------------------------------------------------------------
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{
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long first, last, middle;
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first = 0;
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last = numElem-1;
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middle = (first+last)/2;
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if(value < elements[0]) {
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return first;
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}
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if(value >= elements[last]) {
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return last;
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}
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while (last - first > 1) {
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if (elements[middle] > value) {
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last = middle;
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} else {
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first = middle;
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}
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middle = (first+last)/2;
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}
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if (first < 0 || first >= numElem) {
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LOG_E(RRC,"\n Error in binary search float!");
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}
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return first;
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}
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/*******************************************************************
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*
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* NAME : pucch_procedures_ue_nr
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*
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* PARAMETERS : ue context
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* processing slots of reception/transmission
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* gNB_id identifier
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*
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* RETURN : bool TRUE PUCCH will be transmitted
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* FALSE No PUCCH to transmit
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*
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* DESCRIPTION : determines UCI (uplink Control Information) payload
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* and PUCCH format and its parameters.
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* PUCCH is no transmitted if:
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* - there is no valid data to transmit
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* - Pucch parameters are not valid
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*
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* Below information is scanned in order to know what information should be transmitted to network.
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*
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* (SR Scheduling Request) (HARQ ACK/NACK) (CSI Channel State Information)
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* | | - CQI Channel Quality Indicator
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* | | - RI Rank Indicator
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* | | - PMI Primary Matrux Indicator
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* | | - LI Layer Indicator
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* | | - L1-RSRP
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* | | - CSI-RS resource idicator
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* | V |
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* +-------------------- -> + <------------------
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* |
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* +--------------------------------+
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* | UCI Uplink Control Information |
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* +--------------------------------+
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* V PUCCH Configuration
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* +----------------------------------------+ +--------------------------+
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* | Determine PUCCH payload and its | | PUCCH Resource Set |
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* +----------------------------------------+ | PUCCH Resource |
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* V | Format parameters |
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* +-----------------------------------------+ | |
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* | Select PUCCH format with its parameters | <----------------+--------------------------+
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* +-----------------------------------------+
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* V
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* +-----------------+
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* | Generate PUCCH |
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* +-----------------+
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*
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* TS 38.213 9 UE procedure for reporting control information
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*
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*********************************************************************/
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void pucch_procedures_ue_nr(PHY_VARS_NR_UE *ue,
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const UE_nr_rxtx_proc_t *proc,
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nr_phy_data_tx_t *phy_data,
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c16_t **txdataF,
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bool was_symbol_used[NR_NUMBER_OF_SYMBOLS_PER_SLOT])
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{
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const int nr_slot_tx = proc->nr_slot_tx;
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NR_UE_PUCCH *pucch_vars = &phy_data->pucch_vars;
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for (int i=0; i<2; i++) {
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if(pucch_vars->active[i]) {
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const fapi_nr_ul_config_pucch_pdu *pucch_pdu = &pucch_vars->pucch_pdu[i];
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for (int symb_idx = 0; symb_idx < pucch_pdu->nr_of_symbols; symb_idx++) {
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int symb = pucch_pdu->start_symbol_index + symb_idx;
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was_symbol_used[symb] = true;
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}
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uint16_t nb_of_prbs = pucch_pdu->prb_size;
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/* Generate PUCCH signal according to its format and parameters */
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int16_t pucch_tx_power = pucch_pdu->pucch_tx_power;
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if (pucch_tx_power > ue->tx_power_max_dBm)
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pucch_tx_power = ue->tx_power_max_dBm;
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/* set tx power */
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ue->tx_power_dBm[nr_slot_tx] = pucch_tx_power;
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ue->tx_total_RE[nr_slot_tx] = nb_of_prbs*N_SC_RB;
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int tx_amp;
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/*
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tx_amp = nr_get_tx_amp(pucch_tx_power,
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ue->tx_power_max_dBm,
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ue->frame_parms.N_RB_UL,
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nb_of_prbs);
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if (tx_amp == 0)*/
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// FIXME temporarly using fixed amplitude before pucch power control implementation revised
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tx_amp = AMP;
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LOG_D(PHY,"Generation of PUCCH format %d at frame.slot %d.%d\n",pucch_pdu->format_type,proc->frame_tx,nr_slot_tx);
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switch(pucch_pdu->format_type) {
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case 0:
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nr_generate_pucch0(ue, txdataF, &ue->frame_parms, tx_amp, nr_slot_tx, pucch_pdu);
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break;
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case 1:
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nr_generate_pucch1(ue, txdataF, &ue->frame_parms, tx_amp, nr_slot_tx, pucch_pdu);
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break;
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case 2:
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nr_generate_pucch2(ue, txdataF, &ue->frame_parms, tx_amp, nr_slot_tx, pucch_pdu);
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break;
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case 3:
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case 4:
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nr_generate_pucch3_4(ue, txdataF, &ue->frame_parms, tx_amp, nr_slot_tx, pucch_pdu);
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break;
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}
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}
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pucch_vars->active[i] = false;
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}
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}
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