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srsRAN_4G/srsapps/ue/mac/test/mac_test.cc

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Changed directory structure. Compilation working with w/o UHD and srsGUI
10 years ago
#include <unistd.h>
#include "liblte_rrc.h"
#include "srsapps/radio/radio_uhd.h"
#include "srsapps/ue/phy/phy.h"
#include "srsapps/common/tti_sync_cv.h"
#include "srsapps/common/log_stdout.h"
#include "srsapps/ue/mac/mac.h"
/**********************************************************************
* Program arguments processing
***********************************************************************/
typedef struct {
float uhd_rx_freq;
float uhd_tx_freq;
float uhd_rx_gain;
float uhd_tx_gain;
}prog_args_t;
void args_default(prog_args_t *args) {
args->uhd_rx_freq = -1.0;
args->uhd_tx_freq = -1.0;
args->uhd_rx_gain = 60.0;
args->uhd_tx_gain = 60.0;
}
void usage(prog_args_t *args, char *prog) {
printf("Usage: %s [gv] -f rx_frequency (in Hz) -F tx_frequency (in Hz)\n", prog);
printf("\t-g UHD RX gain [Default %.2f dB]\n", args->uhd_rx_gain);
printf("\t-g UHD RX gain [Default %.2f dB]\n", args->uhd_tx_gain);
printf("\t-v [increase verbosity, default none]\n");
}
void parse_args(prog_args_t *args, int argc, char **argv) {
int opt;
args_default(args);
while ((opt = getopt(argc, argv, "gGfFv")) != -1) {
switch (opt) {
case 'g':
args->uhd_rx_gain = atof(argv[optind]);
break;
case 'G':
args->uhd_tx_gain = atof(argv[optind]);
break;
case 'f':
args->uhd_rx_freq = atof(argv[optind]);
break;
case 'F':
args->uhd_tx_freq = atof(argv[optind]);
break;
case 'v':
srslte_verbose++;
break;
default:
usage(args, argv[0]);
exit(-1);
}
}
if (args->uhd_rx_freq < 0 || args->uhd_tx_freq < 0) {
usage(args, argv[0]);
exit(-1);
}
}
// Determine SI messages scheduling as in 36.331 5.2.3 Acquisition of an SI message
uint32_t sib_start_tti(uint32_t tti, uint32_t period, uint32_t x) {
return (period*10*(1+tti/(period*10))+x)%10240; // the 1 means next opportunity
}
void setup_mac_phy_sib2(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_2_STRUCT *sib2, srslte::ue::mac *mac, srslte::ue::phy *phy) {
// RACH-CONFIGCOMMON
if (sib2->rr_config_common_sib.rach_cnfg.preambles_group_a_cnfg.present) {
mac->set_param(srslte::ue::mac_params::RA_NOFGROUPAPREAMBLES,
liblte_rrc_message_size_group_a_num[sib2->rr_config_common_sib.rach_cnfg.preambles_group_a_cnfg.size_of_ra]);
mac->set_param(srslte::ue::mac_params::RA_MESSAGESIZEA,
liblte_rrc_message_size_group_a_num[sib2->rr_config_common_sib.rach_cnfg.preambles_group_a_cnfg.msg_size]);
mac->set_param(srslte::ue::mac_params::RA_MESSAGEPOWEROFFSETB,
liblte_rrc_message_power_offset_group_b_num[sib2->rr_config_common_sib.rach_cnfg.preambles_group_a_cnfg.msg_pwr_offset_group_b]);
}
mac->set_param(srslte::ue::mac_params::RA_NOFPREAMBLES,
liblte_rrc_number_of_ra_preambles_num[sib2->rr_config_common_sib.rach_cnfg.num_ra_preambles]);
mac->set_param(srslte::ue::mac_params::RA_POWERRAMPINGSTEP,
liblte_rrc_power_ramping_step_num[sib2->rr_config_common_sib.rach_cnfg.pwr_ramping_step]);
mac->set_param(srslte::ue::mac_params::RA_INITRECEIVEDPOWER,
liblte_rrc_preamble_initial_received_target_power_num[sib2->rr_config_common_sib.rach_cnfg.preamble_init_rx_target_pwr]);
mac->set_param(srslte::ue::mac_params::RA_PREAMBLETRANSMAX,
liblte_rrc_preamble_trans_max_num[sib2->rr_config_common_sib.rach_cnfg.preamble_trans_max]);
mac->set_param(srslte::ue::mac_params::RA_RESPONSEWINDOW,
liblte_rrc_ra_response_window_size_num[sib2->rr_config_common_sib.rach_cnfg.ra_resp_win_size]);
mac->set_param(srslte::ue::mac_params::RA_CONTENTIONTIMER,
liblte_rrc_mac_contention_resolution_timer_num[sib2->rr_config_common_sib.rach_cnfg.mac_con_res_timer]);
mac->set_param(srslte::ue::mac_params::RA_MAXTXMSG3,
sib2->rr_config_common_sib.rach_cnfg.max_harq_msg3_tx);
printf("Set RACH ConfigCommon: NofPreambles=%d, ResponseWindow=%d\n",
liblte_rrc_number_of_ra_preambles_num[sib2->rr_config_common_sib.rach_cnfg.num_ra_preambles],
liblte_rrc_ra_response_window_size_num[sib2->rr_config_common_sib.rach_cnfg.ra_resp_win_size]);
// PDSCH ConfigCommon
mac->set_param(srslte::ue::mac_params::PDSCH_RSPOWER,
sib2->rr_config_common_sib.pdsch_cnfg.rs_power);
mac->set_param(srslte::ue::mac_params::PDSCH_PB,
sib2->rr_config_common_sib.pdsch_cnfg.p_b);
// PUSCH ConfigCommon
phy->set_param(srslte::ue::phy_params::PUSCH_EN_64QAM,
sib2->rr_config_common_sib.pusch_cnfg.enable_64_qam);
phy->set_param(srslte::ue::phy_params::PUSCH_HOPPING_OFFSET,
sib2->rr_config_common_sib.pusch_cnfg.pusch_hopping_offset);
phy->set_param(srslte::ue::phy_params::PUSCH_HOPPING_N_SB,
sib2->rr_config_common_sib.pusch_cnfg.n_sb);
phy->set_param(srslte::ue::phy_params::PUSCH_HOPPING_INTRA_SF,
sib2->rr_config_common_sib.pusch_cnfg.hopping_mode == LIBLTE_RRC_HOPPING_MODE_INTRA_AND_INTER_SUBFRAME?1:0);
phy->set_param(srslte::ue::phy_params::PUSCH_RS_GROUP_HOPPING_EN,
sib2->rr_config_common_sib.pusch_cnfg.ul_rs.group_hopping_enabled?1:0);
phy->set_param(srslte::ue::phy_params::PUSCH_RS_SEQUENCE_HOPPING_EN,
sib2->rr_config_common_sib.pusch_cnfg.ul_rs.sequence_hopping_enabled?1:0);
phy->set_param(srslte::ue::phy_params::PUSCH_RS_CYCLIC_SHIFT,
sib2->rr_config_common_sib.pusch_cnfg.ul_rs.cyclic_shift);
phy->set_param(srslte::ue::phy_params::PUSCH_RS_GROUP_ASSIGNMENT,
sib2->rr_config_common_sib.pusch_cnfg.ul_rs.group_assignment_pusch);
printf("Set PUSCH ConfigCommon: HopOffset=%d, RSGroup=%d, RSNcs=%d\n",
sib2->rr_config_common_sib.pusch_cnfg.pusch_hopping_offset,
sib2->rr_config_common_sib.pusch_cnfg.ul_rs.group_assignment_pusch,
sib2->rr_config_common_sib.pusch_cnfg.ul_rs.cyclic_shift);
// PUCCH ConfigCommon
phy->set_param(srslte::ue::phy_params::PUCCH_DELTA_SHIFT,
liblte_rrc_delta_pucch_shift_num[sib2->rr_config_common_sib.pucch_cnfg.delta_pucch_shift]);
phy->set_param(srslte::ue::phy_params::PUCCH_CYCLIC_SHIFT,
sib2->rr_config_common_sib.pucch_cnfg.n_cs_an);
phy->set_param(srslte::ue::phy_params::PUCCH_N_PUCCH_1,
sib2->rr_config_common_sib.pucch_cnfg.n1_pucch_an);
phy->set_param(srslte::ue::phy_params::PUCCH_N_RB_2,
sib2->rr_config_common_sib.pucch_cnfg.n_rb_cqi);
printf("Set PUCCH ConfigCommon: DeltaShift=%d, CyclicShift=%d, N1=%d, NRB=%d\n",
liblte_rrc_delta_pucch_shift_num[sib2->rr_config_common_sib.pucch_cnfg.delta_pucch_shift],
sib2->rr_config_common_sib.pucch_cnfg.n_cs_an,
sib2->rr_config_common_sib.pucch_cnfg.n1_pucch_an,
sib2->rr_config_common_sib.pucch_cnfg.n_rb_cqi);
// PRACH Configcommon
phy->set_param(srslte::ue::phy_params::PRACH_ROOT_SEQ_IDX,
sib2->rr_config_common_sib.prach_cnfg.root_sequence_index);
phy->set_param(srslte::ue::phy_params::PRACH_HIGH_SPEED_FLAG,
sib2->rr_config_common_sib.prach_cnfg.prach_cnfg_info.high_speed_flag?1:0);
phy->set_param(srslte::ue::phy_params::PRACH_FREQ_OFFSET,
sib2->rr_config_common_sib.prach_cnfg.prach_cnfg_info.prach_freq_offset);
phy->set_param(srslte::ue::phy_params::PRACH_ZC_CONFIG,
sib2->rr_config_common_sib.prach_cnfg.prach_cnfg_info.zero_correlation_zone_config);
phy->set_param(srslte::ue::phy_params::PRACH_CONFIG_INDEX,
sib2->rr_config_common_sib.prach_cnfg.prach_cnfg_info.prach_config_index);
printf("Set PRACH ConfigCommon: SeqIdx=%d, HS=%d, FreqOffset=%d, ZC=%d, ConfigIndex=%d\n",
sib2->rr_config_common_sib.prach_cnfg.root_sequence_index,
sib2->rr_config_common_sib.prach_cnfg.prach_cnfg_info.high_speed_flag?1:0,
sib2->rr_config_common_sib.prach_cnfg.prach_cnfg_info.prach_freq_offset,
sib2->rr_config_common_sib.prach_cnfg.prach_cnfg_info.zero_correlation_zone_config,
sib2->rr_config_common_sib.prach_cnfg.prach_cnfg_info.prach_config_index);
}
int main(int argc, char *argv[])
{
prog_args_t prog_args;
srslte::ue::tti_sync_cv ttisync(10240);
srslte::radio_uhd radio_uhd;
srslte::ue::phy phy;
srslte::ue::mac mac;
srslte::log_stdout log("MAC");
parse_args(&prog_args, argc, argv);
// Init Radio
radio_uhd.init();
// Init PHY
phy.init(&radio_uhd, &ttisync);
// Init MAC
mac.init(&phy, &ttisync, &log);
// Set RX freq and gain
radio_uhd.set_rx_freq(prog_args.uhd_rx_freq);
radio_uhd.set_rx_gain(prog_args.uhd_rx_gain);
radio_uhd.set_tx_freq(prog_args.uhd_tx_freq);
radio_uhd.set_tx_gain(prog_args.uhd_tx_gain);
LIBLTE_BIT_MSG_STRUCT bit_msg;
LIBLTE_RRC_MIB_STRUCT bch_msg;
LIBLTE_RRC_BCCH_DLSCH_MSG_STRUCT dlsch_msg;
LIBLTE_RRC_UL_CCCH_MSG_STRUCT ul_ccch_msg;
LIBLTE_RRC_DL_CCCH_MSG_STRUCT dl_ccch_msg;
uint32_t si_window_len, sib2_period;
int tti;
enum {START, SIB1, SIB2, CONNECT} state = START;
int n;
while(1) {
switch(state) {
case START:
n = mac.recv_bcch_sdu(bit_msg.msg, LIBLTE_MAX_MSG_SIZE);
if (n > 0) {
bit_msg.N_bits = n;
liblte_rrc_unpack_bcch_bch_msg(&bit_msg, &bch_msg);
printf("MIB received %d bytes, BW=%s\n", n, liblte_rrc_dl_bandwidth_text[bch_msg.dl_bw]);
state = SIB1;
}
break;
case SIB1:
n = mac.recv_bcch_sdu(bit_msg.msg, LIBLTE_MAX_MSG_SIZE);
if (n > 0) {
bit_msg.N_bits = n;
liblte_rrc_unpack_bcch_dlsch_msg(&bit_msg, &dlsch_msg);
si_window_len = liblte_rrc_si_window_length_num[dlsch_msg.sibs[0].sib.sib1.si_window_length];
sib2_period = liblte_rrc_si_periodicity_num[dlsch_msg.sibs[0].sib.sib1.sched_info[0].si_periodicity];
printf("SIB1 received %d bytes, CellID=%d, si_window=%d, sib2_period=%d\n",
n/8, dlsch_msg.sibs[0].sib.sib1.cell_id&0xfff, si_window_len, sib2_period);
printf("Payload: ");
srslte_vec_fprint_hex(stdout, bit_msg.msg, n);
state = SIB2;
} else {
tti = mac.get_tti();
mac.set_param(srslte::ue::mac_params::BCCH_SI_WINDOW_ST, sib_start_tti(tti, 2, 5));
mac.set_param(srslte::ue::mac_params::BCCH_SI_WINDOW_LEN, 1);
}
break;
case SIB2:
n = mac.recv_bcch_sdu(bit_msg.msg, LIBLTE_MAX_MSG_SIZE);
if (n > 0) {
// Process SIB2
bit_msg.N_bits = n;
liblte_rrc_unpack_bcch_dlsch_msg(&bit_msg, &dlsch_msg);
printf("SIB2 received %d bytes\n", n/8);
printf("Payload: ");
srslte_vec_fprint_hex(stdout, bit_msg.msg, n);
setup_mac_phy_sib2(&dlsch_msg.sibs[0].sib.sib2, &mac, &phy);
// Prepare ConnectionRequest packet
ul_ccch_msg.msg_type = LIBLTE_RRC_UL_CCCH_MSG_TYPE_RRC_CON_REQ;
ul_ccch_msg.msg.rrc_con_req.ue_id_type = LIBLTE_RRC_CON_REQ_UE_ID_TYPE_RANDOM_VALUE;
ul_ccch_msg.msg.rrc_con_req.ue_id.random = 1000;
ul_ccch_msg.msg.rrc_con_req.cause = LIBLTE_RRC_CON_REQ_EST_CAUSE_MO_DATA;
liblte_rrc_pack_ul_ccch_msg(&ul_ccch_msg, &bit_msg);
mac.set_param(srslte::ue::mac_params::CONTENTION_ID, ul_ccch_msg.msg.rrc_con_req.ue_id.random);
// Send ConnectionRequest Packet
mac.send_ccch_sdu(bit_msg.msg, bit_msg.N_bits);
state = CONNECT;
} else {
tti = mac.get_tti();
mac.set_param(srslte::ue::mac_params::BCCH_SI_WINDOW_ST, sib_start_tti(tti, sib2_period, 0));
mac.set_param(srslte::ue::mac_params::BCCH_SI_WINDOW_LEN, si_window_len);
}
break;
case CONNECT:
// Waint for Connection Setup
n = mac.recv_ccch_sdu(bit_msg.msg, LIBLTE_MAX_MSG_SIZE);
if (n > 0) {
printf("ConnSetup received %d bytes\n", n/8);
bit_msg.N_bits = n;
liblte_rrc_unpack_dl_ccch_msg(&bit_msg, &dl_ccch_msg);
printf("Response: %s\n", liblte_rrc_dl_ccch_msg_type_text[dl_ccch_msg.msg_type]);
if (dl_ccch_msg.msg_type == LIBLTE_RRC_DL_CCCH_MSG_TYPE_RRC_CON_SETUP) {
// Process ConnectionRequest
}
exit(0);
}
break;
}
usleep(50000);
}
}