76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
/*
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* 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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#include "PHY/types.h"
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#include "PHY/defs_nr_UE.h"
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void
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phy_adjust_gain_nr (PHY_VARS_NR_UE *ue, uint32_t rx_power_fil_dB, uint8_t eNB_id)
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{
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LOG_D(PHY,"Gain control: rssi %d (%d,%d)\n",
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rx_power_fil_dB,
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ue->measurements.rssi,
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ue->measurements.rx_power_avg_dB[eNB_id]
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);
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// Gain control with hysterisis
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// Adjust gain in ue->rx_vars[0].rx_total_gain_dB
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if (rx_power_fil_dB < TARGET_RX_POWER - 5) //&& (ue->rx_total_gain_dB < MAX_RF_GAIN) )
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ue->rx_total_gain_dB+=5;
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else if (rx_power_fil_dB > TARGET_RX_POWER + 5) //&& (ue->rx_total_gain_dB > MIN_RF_GAIN) )
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ue->rx_total_gain_dB-=5;
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if (ue->rx_total_gain_dB>MAX_RF_GAIN) {
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/*
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if ((openair_daq_vars.rx_rf_mode==0) && (openair_daq_vars.mode == openair_NOT_SYNCHED)) {
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openair_daq_vars.rx_rf_mode=1;
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ue->rx_total_gain_dB = max(MIN_RF_GAIN,MAX_RF_GAIN-25);
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}
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else {
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*/
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ue->rx_total_gain_dB = MAX_RF_GAIN;
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} else if (ue->rx_total_gain_dB<MIN_RF_GAIN) {
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/*
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if ((openair_daq_vars.rx_rf_mode==1) && (openair_daq_vars.mode == openair_NOT_SYNCHED)) {
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openair_daq_vars.rx_rf_mode=0;
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ue->rx_total_gain_dB = min(MAX_RF_GAIN,MIN_RF_GAIN+25);
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}
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else {
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*/
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ue->rx_total_gain_dB = MIN_RF_GAIN;
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}
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LOG_D(PHY,"Gain control: rx_total_gain_dB = %d TARGET_RX_POWER %d (max %d,rxpf %d)\n",ue->rx_total_gain_dB,TARGET_RX_POWER,MAX_RF_GAIN,rx_power_fil_dB);
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#ifdef DEBUG_PHY
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/* if ((ue->frame%100==0) || (ue->frame < 10))
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msg("[PHY][ADJUST_GAIN] frame %d, rx_power = %d, rx_power_fil = %d, rx_power_fil_dB = %d, coef=%d, ncoef=%d, rx_total_gain_dB = %d (%d,%d,%d)\n",
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ue->frame,rx_power,rx_power_fil,rx_power_fil_dB,coef,ncoef,ue->rx_total_gain_dB,
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TARGET_RX_POWER,MAX_RF_GAIN,MIN_RF_GAIN);
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*/
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#endif //DEBUG_PHY
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}
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