Merge remote-tracking branch 'origin/nr_pucch_format0_receiver' into integration-nr-2019-w21
This commit is contained in:
Florian Kaltenberger
@@ -0,0 +1,542 @@
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/*
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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
|
||||
* 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
|
||||
*
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||||
* http://www.openairinterface.org/?page_id=698
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||||
*
|
||||
* 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.
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||||
*-------------------------------------------------------------------------------
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||||
* For more information about the OpenAirInterface (OAI) Software Alliance:
|
||||
* contact@openairinterface.org
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*/
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#include <string.h>
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#include <math.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include "common/config/config_userapi.h"
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#include "common/utils/LOG/log.h"
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#include "common/ran_context.h"
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#include "SIMULATION/TOOLS/sim.h"
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#include "SIMULATION/RF/rf.h"
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#include "PHY/types.h"
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#include "PHY/defs_nr_common.h"
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#include "PHY/defs_nr_UE.h"
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#include "PHY/defs_gNB.h"
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#include "PHY/NR_REFSIG/refsig_defs_ue.h"
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#include "PHY/NR_REFSIG/nr_mod_table.h"
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#include "PHY/MODULATION/modulation_eNB.h"
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#include "PHY/MODULATION/modulation_UE.h"
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#include "PHY/INIT/phy_init.h"
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#include "PHY/NR_TRANSPORT/nr_transport.h"
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#include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h"
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#include "SCHED_NR/sched_nr.h"
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#include "PHY/NR_UE_TRANSPORT/pucch_nr.h"
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PHY_VARS_gNB *gNB;
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PHY_VARS_NR_UE *UE;
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RAN_CONTEXT_t RC;
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openair0_config_t openair0_cfg[MAX_CARDS];
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double cpuf;
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// dummy functions
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int nfapi_mode=0;
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int oai_nfapi_hi_dci0_req(nfapi_hi_dci0_request_t *hi_dci0_req) { return(0);}
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int oai_nfapi_tx_req(nfapi_tx_request_t *tx_req) { return(0); }
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int oai_nfapi_dl_config_req(nfapi_dl_config_request_t *dl_config_req) { return(0); }
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int oai_nfapi_ul_config_req(nfapi_ul_config_request_t *ul_config_req) { return(0); }
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int oai_nfapi_nr_dl_config_req(nfapi_nr_dl_config_request_t *dl_config_req) {return(0);}
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uint32_t from_nrarfcn(int nr_bandP,uint32_t dl_nrarfcn) {return(0);}
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int32_t get_uldl_offset(int nr_bandP) {return(0);}
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NR_IF_Module_t *NR_IF_Module_init(int Mod_id){return(NULL);}
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void exit_function(const char* file, const char* function, const int line,const char *s) {
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const char * msg= s==NULL ? "no comment": s;
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printf("Exiting at: %s:%d %s(), %s\n", file, line, function, msg);
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exit(-1);
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}
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// needed for some functions
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PHY_VARS_NR_UE * PHY_vars_UE_g[1][1]={{NULL}};
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int main(int argc, char **argv)
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{
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char c;
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int i,aa;//,l;
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double sigma2, sigma2_dB=10,SNR,snr0=-2.0,snr1=2.0;
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double cfo=0;
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uint8_t snr1set=0;
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int **txdata;
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double **s_re,**s_im,**r_re,**r_im;
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// int sync_pos, sync_pos_slot;
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// FILE *rx_frame_file;
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FILE *output_fd = NULL;
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uint8_t write_output_file=0;
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//int result;
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//int freq_offset;
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// int subframe_offset;
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// char fname[40], vname[40];
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int trial,n_trials=1,n_errors=0;
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uint8_t transmission_mode = 1,n_tx=1,n_rx=1;
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uint16_t Nid_cell=0;
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uint64_t SSB_positions=0x01;
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channel_desc_t *gNB2UE;
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uint8_t extended_prefix_flag=0;
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int8_t interf1=-21,interf2=-21;
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FILE *input_fd=NULL,*pbch_file_fd=NULL;
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//uint32_t nsymb,tx_lev,tx_lev1 = 0,tx_lev2 = 0;
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//char input_val_str[50],input_val_str2[50];
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//uint8_t frame_mod4,num_pdcch_symbols = 0;
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//double pbch_sinr;
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//int pbch_tx_ant;
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SCM_t channel_model=AWGN;//Rayleigh1_anticorr;
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int N_RB_DL=273,mu=1;
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unsigned char frame_type = 0;
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unsigned char pbch_phase = 0;
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int frame=0,subframe=0;
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int frame_length_complex_samples;
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int frame_length_complex_samples_no_prefix;
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NR_DL_FRAME_PARMS *frame_parms;
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nfapi_nr_config_request_t *gNB_config;
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int loglvl=OAILOG_WARNING;
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cpuf = get_cpu_freq_GHz();
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if ( load_configmodule(argc,argv) == 0) {
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exit_fun("[SOFTMODEM] Error, configuration module init failed\n");
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}
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randominit(0);
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while ((c = getopt (argc, argv, "f:hA:pf:g:i:j:n:o:s:S:t:x:y:z:N:F:GR:dP:IL:")) != -1) {
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switch (c) {
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case 'f':
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write_output_file=1;
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output_fd = fopen(optarg,"w");
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if (output_fd==NULL) {
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printf("Error opening %s\n",optarg);
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exit(-1);
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}
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break;
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case 'd':
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frame_type = 1;
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break;
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case 'g':
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switch((char)*optarg) {
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case 'A':
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channel_model=SCM_A;
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break;
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case 'B':
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channel_model=SCM_B;
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break;
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case 'C':
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channel_model=SCM_C;
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break;
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case 'D':
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channel_model=SCM_D;
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break;
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case 'E':
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channel_model=EPA;
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break;
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case 'F':
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channel_model=EVA;
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break;
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case 'G':
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channel_model=ETU;
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break;
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default:
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msg("Unsupported channel model!\n");
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exit(-1);
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}
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break;
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case 'i':
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interf1=atoi(optarg);
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break;
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case 'j':
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interf2=atoi(optarg);
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break;
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case 'n':
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n_trials = atoi(optarg);
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break;
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case 'o':
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cfo = atof(optarg);
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msg("Setting CFO to %f Hz\n",cfo);
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break;
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case 's':
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snr0 = atof(optarg);
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msg("Setting SNR0 to %f\n",snr0);
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break;
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case 'S':
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snr1 = atof(optarg);
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snr1set=1;
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msg("Setting SNR1 to %f\n",snr1);
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break;
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/*
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case 't':
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Td= atof(optarg);
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break;
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*/
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case 'p':
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extended_prefix_flag=1;
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break;
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/*
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case 'r':
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ricean_factor = pow(10,-.1*atof(optarg));
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if (ricean_factor>1) {
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printf("Ricean factor must be between 0 and 1\n");
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exit(-1);
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}
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break;
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*/
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case 'x':
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transmission_mode=atoi(optarg);
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if ((transmission_mode!=1) &&
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(transmission_mode!=2) &&
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(transmission_mode!=6)) {
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msg("Unsupported transmission mode %d\n",transmission_mode);
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exit(-1);
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}
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break;
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case 'y':
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n_tx=atoi(optarg);
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if ((n_tx==0) || (n_tx>2)) {
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msg("Unsupported number of tx antennas %d\n",n_tx);
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exit(-1);
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}
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break;
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case 'z':
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n_rx=atoi(optarg);
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if ((n_rx==0) || (n_rx>2)) {
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msg("Unsupported number of rx antennas %d\n",n_rx);
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exit(-1);
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}
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break;
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case 'N':
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Nid_cell = atoi(optarg);
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break;
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case 'R':
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N_RB_DL = atoi(optarg);
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break;
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case 'F':
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input_fd = fopen(optarg,"r");
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if (input_fd==NULL) {
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printf("Problem with filename %s\n",optarg);
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exit(-1);
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}
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break;
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case 'P':
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pbch_phase = atoi(optarg);
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if (pbch_phase>3)
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printf("Illegal PBCH phase (0-3) got %d\n",pbch_phase);
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break;
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case 'L':
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loglvl = atoi(optarg);
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break;
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default:
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case 'h':
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printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n",
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argv[0]);
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printf("-h This message\n");
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printf("-p Use extended prefix mode\n");
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printf("-d Use TDD\n");
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printf("-n Number of frames to simulate\n");
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printf("-s Starting SNR, runs from SNR0 to SNR0 + 5 dB. If n_frames is 1 then just SNR is simulated\n");
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printf("-S Ending SNR, runs from SNR0 to SNR1\n");
|
||||
printf("-t Delay spread for multipath channel\n");
|
||||
printf("-g [A,B,C,D,E,F,G] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models (ignores delay spread and Ricean factor)\n");
|
||||
printf("-x Transmission mode (1,2,6 for the moment)\n");
|
||||
printf("-y Number of TX antennas used in eNB\n");
|
||||
printf("-z Number of RX antennas used in UE\n");
|
||||
printf("-i Relative strength of first intefering eNB (in dB) - cell_id mod 3 = 1\n");
|
||||
printf("-j Relative strength of second intefering eNB (in dB) - cell_id mod 3 = 2\n");
|
||||
printf("-o Carrier frequency offset in Hz\n");
|
||||
printf("-N Nid_cell\n");
|
||||
printf("-R N_RB_DL\n");
|
||||
printf("-O oversampling factor (1,2,4,8,16)\n");
|
||||
printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n");
|
||||
// printf("-C Generate Calibration information for Abstraction (effective SNR adjustment to remove Pe bias w.r.t. AWGN)\n");
|
||||
printf("-f Output filename (.txt format) for Pe/SNR results\n");
|
||||
printf("-F Input filename (.txt format) for RX conformance testing\n");
|
||||
exit (-1);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
logInit();
|
||||
set_glog(loglvl);
|
||||
T_stdout = 1;
|
||||
|
||||
if (snr1set==0)
|
||||
snr1 = snr0+10;
|
||||
|
||||
printf("Initializing gNodeB for mu %d, N_RB_DL %d\n",mu,N_RB_DL);
|
||||
|
||||
RC.gNB = (PHY_VARS_gNB***) malloc(sizeof(PHY_VARS_gNB **));
|
||||
RC.gNB[0] = (PHY_VARS_gNB**) malloc(sizeof(PHY_VARS_gNB *));
|
||||
RC.gNB[0][0] = malloc(sizeof(PHY_VARS_gNB));
|
||||
gNB = RC.gNB[0][0];
|
||||
gNB_config = &gNB->gNB_config;
|
||||
frame_parms = &gNB->frame_parms; //to be initialized I suppose (maybe not necessary for PBCH)
|
||||
frame_parms->nb_antennas_tx = n_tx;
|
||||
frame_parms->nb_antennas_rx = n_rx;
|
||||
frame_parms->N_RB_DL = N_RB_DL;
|
||||
frame_parms->N_RB_UL = N_RB_DL;
|
||||
frame_parms->Nid_cell = Nid_cell;
|
||||
|
||||
nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,Nid_cell,SSB_positions);
|
||||
phy_init_nr_gNB(gNB,0,0);
|
||||
|
||||
double fs,bw,scs,eps;
|
||||
|
||||
if (mu == 1 && N_RB_DL == 217) {
|
||||
fs = 122.88e6;
|
||||
bw = 80e6;
|
||||
scs = 30000;
|
||||
}
|
||||
else if (mu == 1 && N_RB_DL == 245) {
|
||||
fs = 122.88e6;
|
||||
bw = 90e6;
|
||||
scs = 30000;
|
||||
}
|
||||
else if (mu == 1 && N_RB_DL == 273) {
|
||||
fs = 122.88e6;
|
||||
bw = 100e6;
|
||||
scs = 30000;
|
||||
}
|
||||
else if (mu == 1 && N_RB_DL == 106) {
|
||||
fs = 61.44e6;
|
||||
bw = 40e6;
|
||||
scs = 30000;
|
||||
}
|
||||
else AssertFatal(1==0,"Unsupported numerology for mu %d, N_RB %d\n",mu, N_RB_DL);
|
||||
|
||||
// cfo with respect to sub-carrier spacing
|
||||
eps = cfo/scs;
|
||||
|
||||
// computation of integer and fractional FO to compare with estimation results
|
||||
int IFO;
|
||||
if(eps!=0.0){
|
||||
printf("Introducing a CFO of %lf relative to SCS of %d kHz\n",eps,(int)(scs/1000));
|
||||
if (eps>0)
|
||||
IFO=(int)(eps+0.5);
|
||||
else
|
||||
IFO=(int)(eps-0.5);
|
||||
printf("FFO = %lf; IFO = %d\n",eps-IFO,IFO);
|
||||
}
|
||||
|
||||
gNB2UE = new_channel_desc_scm(n_tx,
|
||||
n_rx,
|
||||
channel_model,
|
||||
fs,
|
||||
bw,
|
||||
0,
|
||||
0,
|
||||
0);
|
||||
|
||||
if (gNB2UE==NULL) {
|
||||
msg("Problem generating channel model. Exiting.\n");
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
frame_length_complex_samples = frame_parms->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME;
|
||||
frame_length_complex_samples_no_prefix = frame_parms->samples_per_subframe_wCP;
|
||||
|
||||
s_re = malloc(2*sizeof(double*));
|
||||
s_im = malloc(2*sizeof(double*));
|
||||
r_re = malloc(2*sizeof(double*));
|
||||
r_im = malloc(2*sizeof(double*));
|
||||
txdata = malloc(2*sizeof(int*));
|
||||
|
||||
for (i=0; i<2; i++) {
|
||||
|
||||
s_re[i] = malloc(frame_length_complex_samples*sizeof(double));
|
||||
bzero(s_re[i],frame_length_complex_samples*sizeof(double));
|
||||
s_im[i] = malloc(frame_length_complex_samples*sizeof(double));
|
||||
bzero(s_im[i],frame_length_complex_samples*sizeof(double));
|
||||
|
||||
r_re[i] = malloc(frame_length_complex_samples*sizeof(double));
|
||||
bzero(r_re[i],frame_length_complex_samples*sizeof(double));
|
||||
r_im[i] = malloc(frame_length_complex_samples*sizeof(double));
|
||||
bzero(r_im[i],frame_length_complex_samples*sizeof(double));
|
||||
|
||||
printf("Allocating %d samples for txdata\n",frame_length_complex_samples);
|
||||
txdata[i] = malloc(frame_length_complex_samples*sizeof(int));
|
||||
bzero(r_re[i],frame_length_complex_samples*sizeof(int));
|
||||
|
||||
}
|
||||
if (pbch_file_fd!=NULL) {
|
||||
load_pbch_desc(pbch_file_fd);
|
||||
}
|
||||
|
||||
|
||||
//configure UE
|
||||
UE = malloc(sizeof(PHY_VARS_NR_UE));
|
||||
memcpy(&UE->frame_parms,frame_parms,sizeof(NR_DL_FRAME_PARMS));
|
||||
//phy_init_nr_top(UE); //called from init_nr_ue_signal
|
||||
|
||||
UE->perfect_ce = 0;
|
||||
|
||||
if(eps!=0.0)
|
||||
UE->UE_fo_compensation = 1; // if a frequency offset is set then perform fo estimation and compensation
|
||||
|
||||
if (init_nr_ue_signal(UE, 1, 0) != 0)
|
||||
{
|
||||
printf("Error at UE NR initialisation\n");
|
||||
exit(-1);
|
||||
}
|
||||
int16_t amp=0x1FFF;
|
||||
int nr_tti_tx=0; //According to standards it is Slot number within a frame for subcarrier spacing configuration μ but not sure why he made the variable name so 4.3.2,38.211
|
||||
nr_gold_pbch(UE);
|
||||
// generate signal
|
||||
// pucch_config_common_nr should assign values for this if not done before structure in ue being used by functions
|
||||
uint8_t actual_payload=0,payload_received;//payload bits b7b6...b2b1b0 where b7..b3=0 b2b1=HARQ b0 is SR. payload maximum value is 7
|
||||
uint8_t mcs;
|
||||
int nr_bit=1; // maximum value possible is 2
|
||||
/*if(nr_bit==1){
|
||||
mcs=table1_mcs[actual_payload];
|
||||
}
|
||||
else{
|
||||
mcs=table2_mcs[actual_payload];
|
||||
}*/
|
||||
uint8_t m0=0;// higher layer paramater initial cyclic shift
|
||||
uint8_t nrofSymbols=1; //number of OFDM symbols can be 1-2 for format 1
|
||||
uint8_t startingSymbolIndex=0; // resource allocated see 9.2.1, 38.213 for more info.should be actually present in the resource set provided
|
||||
uint16_t startingPRB=5; //PRB number not sure see 9.2.1, 38.213 for more info. Should be actually present in the resource set provided
|
||||
pucch_GroupHopping_t PUCCH_GroupHopping=UE->pucch_config_common_nr->pucch_GroupHopping;
|
||||
uint32_t n_id=UE->pucch_config_common_nr->hoppingId;
|
||||
printf("\nsnr1=%f\n",snr1);
|
||||
for(SNR=snr0;SNR<=snr1;SNR=SNR+1){
|
||||
n_errors = 0;
|
||||
sigma2_dB = 20*log10((double)amp/32767)-SNR;
|
||||
sigma2 = pow(10,sigma2_dB/10);
|
||||
printf("entering SNR value %f\n",SNR);
|
||||
for (trial=0; trial<n_trials; trial++) {
|
||||
bzero(txdata[0],frame_length_complex_samples*sizeof(int));
|
||||
actual_payload=trial%4;
|
||||
if(nr_bit==1){
|
||||
mcs=table1_mcs[actual_payload];
|
||||
}
|
||||
else{
|
||||
mcs=table2_mcs[actual_payload];
|
||||
}
|
||||
nr_generate_pucch0(UE,txdata,frame_parms,UE->pucch_config_dedicated,amp,nr_tti_tx,m0,mcs,nrofSymbols,startingSymbolIndex,startingPRB);
|
||||
|
||||
for (i=0; i<frame_length_complex_samples; i++) {
|
||||
r_re[0][i]=((double)(((int16_t *)txdata[0])[(i<<1)])/32767 + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
|
||||
r_im[0][i]=((double)(((int16_t *)txdata[0])[(i<<1)+1])/32767 + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
|
||||
if(r_re[0][i]<-1)
|
||||
r_re[0][i]=-1;
|
||||
else if(r_re[0][i]>1)
|
||||
r_re[0][i]=1;
|
||||
if(r_im[0][i]<-1)
|
||||
r_im[0][i]=-1;
|
||||
else if(r_im[0][i]>1)
|
||||
r_im[0][0]=1;
|
||||
((int16_t *)txdata[0])[(i<<1)] = (int16_t)round(r_re[0][i]*32767);
|
||||
((int16_t *)txdata[0])[(i<<1)+1] =(int16_t)round(r_im[0][i]*32767);
|
||||
|
||||
}
|
||||
nr_decode_pucch0(txdata,PUCCH_GroupHopping,n_id,&(payload_received),frame_parms,amp,nr_tti_tx,m0,nrofSymbols,startingSymbolIndex,startingPRB,nr_bit);
|
||||
n_errors=((actual_payload^payload_received)&1)+(((actual_payload^payload_received)&2)>>1)+(((actual_payload^payload_received)&4)>>2)+n_errors;
|
||||
//printf("actual_payload=%x,payload_received=%x",actual_payload,payload_received);
|
||||
}
|
||||
printf("SNR=%f, n_trials=%d, n_bit_errors=%d\n",SNR,n_trials,n_errors);
|
||||
}
|
||||
for (i=0; i<2; i++) {
|
||||
free(s_re[i]);
|
||||
free(s_im[i]);
|
||||
free(r_re[i]);
|
||||
free(r_im[i]);
|
||||
free(txdata[i]);
|
||||
}
|
||||
|
||||
free(s_re);
|
||||
free(s_im);
|
||||
free(r_re);
|
||||
free(r_im);
|
||||
free(txdata);
|
||||
|
||||
if (output_fd)
|
||||
fclose(output_fd);
|
||||
|
||||
if (input_fd)
|
||||
fclose(input_fd);
|
||||
|
||||
return(n_errors);
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user