mirror of https://github.com/PentHertz/srsLTE.git
Enable S-TMSI attach
This commit is contained in:
parent
49a621e193
commit
c6e947e7ca
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@ -38,6 +38,7 @@
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#include "srslte/radio/radio_multi.h"
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#include "phy/phy.h"
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#include "upper/usim.h"
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#include "upper/rrc.h"
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#include "srslte/interfaces/ue_interfaces.h"
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#include "srslte/common/logger.h"
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@ -104,12 +105,11 @@ typedef struct {
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typedef struct {
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std::string ip_netmask;
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phy_args_t phy;
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float metrics_period_secs;
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bool pregenerate_signals;
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std::string ue_cateogry;
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bool metrics_csv_enable;
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std::string metrics_csv_filename;
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phy_args_t phy;
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float metrics_period_secs;
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bool pregenerate_signals;
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bool metrics_csv_enable;
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std::string metrics_csv_filename;
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}expert_args_t;
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typedef struct {
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@ -120,6 +120,8 @@ typedef struct {
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log_args_t log;
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gui_args_t gui;
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usim_args_t usim;
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rrc_args_t rrc;
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std::string ue_category_str;
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expert_args_t expert;
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}all_args_t;
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@ -39,6 +39,15 @@
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#include <map>
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typedef struct {
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bool stmsi_attach;
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LIBLTE_RRC_S_TMSI_STRUCT stmsi_value;
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uint32_t ue_category;
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uint32_t feature_group;
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uint8_t supported_bands[LIBLTE_RRC_BAND_N_ITEMS];
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uint32_t nof_supported_bands;
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}rrc_args_t;
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using srslte::byte_buffer_t;
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namespace srsue {
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@ -73,7 +82,7 @@ public:
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rrc_state_t get_state();
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void set_ue_category(int category);
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void set_args(rrc_args_t *args);
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// Timeout callback interface
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void timer_expired(uint32_t timeout_id);
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@ -98,6 +107,9 @@ private:
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uint8_t transaction_id;
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bool drb_up;
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rrc_args_t args;
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bool first_stimsi_attempt;
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bool reestablishment_in_progress;
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// timeouts in ms
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@ -132,7 +144,6 @@ private:
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uint32_t n310_cnt, N310;
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uint32_t n311_cnt, N311;
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uint32_t t301, t310, t311;
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int ue_category;
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typedef struct {
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uint32_t earfcn;
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@ -269,7 +280,11 @@ private:
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void set_mac_default();
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void set_rrc_default();
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void set_bearers();
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// s-tmsi persistent file
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bool read_stimsi_file(LIBLTE_RRC_S_TMSI_STRUCT *s_tmsi);
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bool write_stimsi_file(LIBLTE_RRC_S_TMSI_STRUCT s_tmsi);
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};
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} // namespace srsue
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@ -75,10 +75,19 @@ void parse_args(all_args_t *args, int argc, char *argv[]) {
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("rf.device_args", bpo::value<string>(&args->rf.device_args)->default_value("auto"), "Front-end device arguments")
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("rf.time_adv_nsamples", bpo::value<string>(&args->rf.time_adv_nsamples)->default_value("auto"),
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"Transmission time advance")
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("rf.burst_preamble_us", bpo::value<string>(&args->rf.burst_preamble)->default_value("auto"),
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"Transmission time advance")
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("rf.burst_preamble_us", bpo::value<string>(&args->rf.burst_preamble)->default_value("auto"), "Transmission time advance")
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("pcap.enable", bpo::value<bool>(&args->pcap.enable)->default_value(false),
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("rrc.stmsi_attach", bpo::value<bool>(&args->rrc.stmsi_attach)->default_value(false),"If enabled, always tries first an S-TMSI attach using the\n"
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"S-TMSI value stored in .stimsi file generated in previous run")
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("rrc.mmec_value", bpo::value<uint8_t>(&args->rrc.stmsi_value.mmec)->default_value(0), "If defined (non-zero), overwrites the value stored in .stimsi file")
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("rrc.mtmsi_value", bpo::value<uint32_t>(&args->rrc.stmsi_value.m_tmsi)->default_value(0), "If defined (non-zero), overwrites the value stored in .stimsi file")
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("rrc.feature_group", bpo::value<uint32_t>(&args->rrc.feature_group)->default_value(0xe6041c00), "Hex value of the featureGroupIndicators field in the"
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"UECapabilityInformation message. Default 0xe6041c00")
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("rrc.ue_category", bpo::value<string>(&args->ue_category_str)->default_value("4"), "UE Category (1 to 5)")
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("pcap.enable", bpo::value<bool>(&args->pcap.enable)->default_value(false),
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"Enable MAC packet captures for wireshark")
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("pcap.filename", bpo::value<string>(&args->pcap.filename)->default_value("ue.pcap"), "MAC layer capture filename")
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@ -134,10 +143,6 @@ void parse_args(all_args_t *args, int argc, char *argv[]) {
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bpo::value<int>(&args->expert.phy.sync_cpu_affinity)->default_value(-1),
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"index of the core used by the sync thread")
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("expert.ue_category",
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bpo::value<string>(&args->expert.ue_cateogry)->default_value("4"),
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"UE Category (1 to 5)")
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("expert.metrics_period_secs",
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bpo::value<float>(&args->expert.metrics_period_secs)->default_value(1.0),
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"Periodicity for metrics in seconds")
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@ -188,7 +188,12 @@ bool ue::init(all_args_t *args_)
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gw.set_netmask(args->expert.ip_netmask);
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rrc.init(&phy, &mac, &rlc, &pdcp, &nas, &usim, &mac, &rrc_log);
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rrc.set_ue_category(atoi(args->expert.ue_cateogry.c_str()));
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// Get current band from provided EARFCN
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args->rrc.supported_bands[0] = srslte_band_get_band(args->rf.dl_earfcn);
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args->rrc.nof_supported_bands = 1;
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args->rrc.ue_category = atoi(args->ue_category_str.c_str());
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rrc.set_args(&args->rrc);
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// Currently EARFCN list is set to only one frequency as indicated in ue.conf
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std::vector<uint32_t> earfcn_list;
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@ -26,12 +26,11 @@
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#include <unistd.h>
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#include <iostream>
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#include <fstream>
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#include <sstream>
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#include "srslte/asn1/liblte_rrc.h"
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#include "upper/rrc.h"
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#include <boost/assign.hpp>
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#include <upper/rrc.h>
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#include <srslte/asn1/liblte_rrc.h>
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#include "srslte/asn1/liblte_rrc.h"
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#include "srslte/common/security.h"
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#include "srslte/common/bcd_helpers.h"
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@ -93,9 +92,15 @@ void rrc::init(phy_interface_rrc *phy_,
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pthread_mutex_init(&mutex, NULL);
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first_stimsi_attempt = false;
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reestablishment_in_progress = false;
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ue_category = SRSLTE_UE_CATEGORY;
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args.ue_category = SRSLTE_UE_CATEGORY;
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args.supported_bands[0] = 7;
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args.nof_supported_bands = 1;
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args.feature_group = 0xe6041c00;
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args.stmsi_attach = false;
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t301 = mac_timers->timer_get_unique_id();
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t310 = mac_timers->timer_get_unique_id();
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t311 = mac_timers->timer_get_unique_id();
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@ -131,12 +136,8 @@ bool rrc::have_drb() {
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return drb_up;
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}
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void rrc::set_ue_category(int category) {
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if (category >= 1 && category <= 5) {
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ue_category = category;
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} else {
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rrc_log->error("Unsupported UE category %d\n", category);
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}
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void rrc::set_args(rrc_args_t *args) {
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memcpy(&this->args, args, sizeof(rrc_args_t));
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}
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/*
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@ -591,6 +592,66 @@ void rrc::timer_expired(uint32_t timeout_id) {
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*
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*******************************************************************************/
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bool rrc::read_stimsi_file(LIBLTE_RRC_S_TMSI_STRUCT *s_tmsi) {
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std::ifstream file;
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std::string line;
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if (!s_tmsi) {
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return false;
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}
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const char *mmec_str = "mmec=";
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size_t mmec_str_len = strlen(mmec_str);
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const char *mtmsi_str = "mtmsi=";
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size_t mtmsi_str_len = strlen(mtmsi_str);
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file.open(".stmsi", std::ios::in);
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if (file.is_open()) {
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bool read_ok = true;
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if (std::getline(file, line)) {
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if (!line.substr(0,mmec_str_len).compare(mmec_str)) {
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s_tmsi->mmec = atoi(line.substr(5).c_str());
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} else {
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read_ok = false;
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}
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} else {
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read_ok = false;
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}
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if (std::getline(file, line)) {
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if (!line.substr(0,mtmsi_str_len).compare(mtmsi_str)) {
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s_tmsi->m_tmsi = atoi(line.substr(mtmsi_str_len).c_str());
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} else {
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read_ok = false;
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}
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} else {
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read_ok = false;
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}
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file.close();
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if (read_ok) {
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rrc_log->info("Read S-TMSI value: %x:%x\n", s_tmsi->mmec, s_tmsi->m_tmsi);
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return true;
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} else {
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rrc_log->error("Invalid s-tmsi persistent file format\n");
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return false;
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}
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} else {
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return false;
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}
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}
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bool rrc::write_stimsi_file(LIBLTE_RRC_S_TMSI_STRUCT s_tmsi) {
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std::ofstream file;
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file.open(".stmsi", std::ios::out | std::ios::trunc);
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if (file.is_open()) {
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file << "mmec=" << (int) s_tmsi.mmec << std::endl;
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file << "mtmsi=" << (int) s_tmsi.m_tmsi << std::endl;
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rrc_log->info("Saved S-TMSI in persistent file: %x:%x\n", s_tmsi.mmec, s_tmsi.m_tmsi);
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file.close();
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return true;
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} else {
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return false;
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}
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}
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void rrc::send_con_request() {
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rrc_log->debug("Preparing RRC Connection Request\n");
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LIBLTE_RRC_UL_CCCH_MSG_STRUCT ul_ccch_msg;
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@ -598,13 +659,32 @@ void rrc::send_con_request() {
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// Prepare ConnectionRequest packet
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ul_ccch_msg.msg_type = LIBLTE_RRC_UL_CCCH_MSG_TYPE_RRC_CON_REQ;
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if (nas->get_s_tmsi(&s_tmsi)) {
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bool valid_stmsi = false;
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if (nas->get_s_tmsi(&s_tmsi) || (args.stmsi_attach && !first_stimsi_attempt)) {
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ul_ccch_msg.msg.rrc_con_req.ue_id_type = LIBLTE_RRC_CON_REQ_UE_ID_TYPE_S_TMSI;
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ul_ccch_msg.msg.rrc_con_req.ue_id.s_tmsi = s_tmsi;
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} else {
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if (nas->get_s_tmsi(&s_tmsi)) {
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ul_ccch_msg.msg.rrc_con_req.ue_id.s_tmsi = s_tmsi;
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valid_stmsi = true;
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} else {
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first_stimsi_attempt = true;
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if (args.stmsi_value.m_tmsi) {
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ul_ccch_msg.msg.rrc_con_req.ue_id.s_tmsi = args.stmsi_value;
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valid_stmsi = true;
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} else {
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if (!read_stimsi_file(&ul_ccch_msg.msg.rrc_con_req.ue_id.s_tmsi)) {
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rrc_log->warning("Could not read S-TMSI from persistent file. Trying normal attach.\n");
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} else {
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valid_stmsi = true;
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}
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}
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}
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}
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if (!valid_stmsi) {
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ul_ccch_msg.msg.rrc_con_req.ue_id_type = LIBLTE_RRC_CON_REQ_UE_ID_TYPE_RANDOM_VALUE;
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ul_ccch_msg.msg.rrc_con_req.ue_id.random = 1000;
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}
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ul_ccch_msg.msg.rrc_con_req.cause = LIBLTE_RRC_CON_REQ_EST_CAUSE_MO_SIGNALLING;
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liblte_rrc_pack_ul_ccch_msg(&ul_ccch_msg, (LIBLTE_BIT_MSG_STRUCT *) &bit_buf);
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@ -876,6 +956,14 @@ void rrc::handle_rrc_con_reconfig(uint32_t lcid, LIBLTE_RRC_CONNECTION_RECONFIGU
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nas_sdu->N_bytes = reconfig->ded_info_nas_list[i].N_bytes;
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nas->write_pdu(lcid, nas_sdu);
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}
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// Get S-TMSI from NAS and store it in persistent file
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LIBLTE_RRC_S_TMSI_STRUCT s_tmsi;
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if (nas->get_s_tmsi(&s_tmsi)) {
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if (!write_stimsi_file(s_tmsi)) {
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rrc_log->warning("Could not store S-TMSI in persistent file\n");
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}
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}
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}
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/* Actions upon reception of RRCConnectionRelease 5.3.8.3 */
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@ -1022,10 +1110,12 @@ void rrc::write_pdu_pcch(byte_buffer_t *pdu) {
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LIBLTE_RRC_S_TMSI_STRUCT *s_tmsi_paged;
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for (uint32_t i = 0; i < pcch_msg.paging_record_list_size; i++) {
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s_tmsi_paged = &pcch_msg.paging_record_list[i].ue_identity.s_tmsi;
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rrc_log->info("Received paging (%d/%d) for UE 0x%x\n", i + 1, pcch_msg.paging_record_list_size,
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pcch_msg.paging_record_list[i].ue_identity.s_tmsi);
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rrc_log->console("Received paging (%d/%d) for UE 0x%x\n", i + 1, pcch_msg.paging_record_list_size,
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pcch_msg.paging_record_list[i].ue_identity.s_tmsi);
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rrc_log->info("Received paging (%d/%d) for UE %x:%x\n", i + 1, pcch_msg.paging_record_list_size,
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pcch_msg.paging_record_list[i].ue_identity.s_tmsi.mmec,
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pcch_msg.paging_record_list[i].ue_identity.s_tmsi.m_tmsi);
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rrc_log->console("Received paging (%d/%d) for UE %x:%x\n", i + 1, pcch_msg.paging_record_list_size,
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pcch_msg.paging_record_list[i].ue_identity.s_tmsi.mmec,
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pcch_msg.paging_record_list[i].ue_identity.s_tmsi.m_tmsi);
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if (s_tmsi.mmec == s_tmsi_paged->mmec && s_tmsi.m_tmsi == s_tmsi_paged->m_tmsi) {
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rrc_log->info("S-TMSI match in paging message\n");
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rrc_log->console("S-TMSI match in paging message\n");
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@ -1200,7 +1290,7 @@ void rrc::parse_dl_dcch(uint32_t lcid, byte_buffer_t *pdu) {
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*
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*******************************************************************************/
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void rrc::enable_capabilities() {
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bool enable_ul_64 = ue_category >= 5 && current_cell->sib2.rr_config_common_sib.pusch_cnfg.enable_64_qam;
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bool enable_ul_64 = args.ue_category >= 5 && current_cell->sib2.rr_config_common_sib.pusch_cnfg.enable_64_qam;
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rrc_log->info("%s 64QAM PUSCH\n", enable_ul_64 ? "Enabling" : "Disabling");
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phy->set_config_64qam_en(enable_ul_64);
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}
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@ -1218,7 +1308,7 @@ void rrc::send_rrc_ue_cap_info(uint32_t lcid, byte_buffer_t *pdu) {
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LIBLTE_RRC_UE_EUTRA_CAPABILITY_STRUCT *cap = &info->ue_capability_rat[0].eutra_capability;
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cap->access_stratum_release = LIBLTE_RRC_ACCESS_STRATUM_RELEASE_REL8;
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cap->ue_category = ue_category;
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cap->ue_category = args.ue_category;
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cap->pdcp_params.max_rohc_ctxts_present = false;
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cap->pdcp_params.supported_rohc_profiles[0] = false;
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@ -1234,31 +1324,17 @@ void rrc::send_rrc_ue_cap_info(uint32_t lcid, byte_buffer_t *pdu) {
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cap->phy_params.specific_ref_sigs_supported = false;
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cap->phy_params.tx_antenna_selection_supported = false;
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//TODO: Generate this from user input?
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cap->rf_params.N_supported_band_eutras = 3;
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cap->rf_params.supported_band_eutra[0].band_eutra = 3;
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cap->rf_params.supported_band_eutra[0].half_duplex = false;
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cap->rf_params.supported_band_eutra[1].band_eutra = 7;
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cap->rf_params.supported_band_eutra[1].half_duplex = false;
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cap->rf_params.supported_band_eutra[2].band_eutra = 20;
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cap->rf_params.supported_band_eutra[2].half_duplex = false;
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cap->meas_params.N_band_list_eutra = 3;
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cap->meas_params.band_list_eutra[0].N_inter_freq_need_for_gaps = 3;
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cap->meas_params.band_list_eutra[0].inter_freq_need_for_gaps[0] = true;
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cap->meas_params.band_list_eutra[0].inter_freq_need_for_gaps[1] = true;
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cap->meas_params.band_list_eutra[0].inter_freq_need_for_gaps[2] = true;
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cap->meas_params.band_list_eutra[1].N_inter_freq_need_for_gaps = 3;
|
||||
cap->meas_params.band_list_eutra[1].inter_freq_need_for_gaps[0] = true;
|
||||
cap->meas_params.band_list_eutra[1].inter_freq_need_for_gaps[1] = true;
|
||||
cap->meas_params.band_list_eutra[1].inter_freq_need_for_gaps[2] = true;
|
||||
cap->meas_params.band_list_eutra[2].N_inter_freq_need_for_gaps = 3;
|
||||
cap->meas_params.band_list_eutra[2].inter_freq_need_for_gaps[0] = true;
|
||||
cap->meas_params.band_list_eutra[2].inter_freq_need_for_gaps[1] = true;
|
||||
cap->meas_params.band_list_eutra[2].inter_freq_need_for_gaps[2] = true;
|
||||
cap->rf_params.N_supported_band_eutras = args.nof_supported_bands;
|
||||
cap->meas_params.N_band_list_eutra = args.nof_supported_bands;
|
||||
for (uint32_t i=0;i<args.nof_supported_bands;i++) {
|
||||
cap->rf_params.supported_band_eutra[i].band_eutra = args.supported_bands[i];
|
||||
cap->rf_params.supported_band_eutra[i].half_duplex = false;
|
||||
cap->meas_params.band_list_eutra[i].N_inter_freq_need_for_gaps = 1;
|
||||
cap->meas_params.band_list_eutra[i].inter_freq_need_for_gaps[0] = true;
|
||||
}
|
||||
|
||||
cap->feature_group_indicator_present = true;
|
||||
cap->feature_group_indicator = 0x62001000;
|
||||
cap->feature_group_indicator = args.feature_group;
|
||||
cap->inter_rat_params.utra_fdd_present = false;
|
||||
cap->inter_rat_params.utra_tdd128_present = false;
|
||||
cap->inter_rat_params.utra_tdd384_present = false;
|
||||
|
|
|
@ -92,19 +92,36 @@ k = 00112233445566778899aabbccddeeff
|
|||
imsi = 001010123456789
|
||||
imei = 353490069873319
|
||||
|
||||
|
||||
#####################################################################
|
||||
# RRC configuration
|
||||
#
|
||||
# stimsi_attach: If enabled, always tries first an S-TMSI attach using the
|
||||
# S-TMSI value stored in .stimsi file generated in previous run
|
||||
# mmec_value: If defined (non-zero), overwrites the value stored in .stimsi file
|
||||
# m_tmsi_value: If defined (non-zero), overwrites the value stored in .stimsi file
|
||||
#
|
||||
# ue_category: Sets UE category (range 1-5). Default: 4
|
||||
# feature_group: Hex value of the featureGroupIndicators field in the
|
||||
# UECapabilityInformation message. Default 0xe6041c00
|
||||
#####################################################################
|
||||
[rrc]
|
||||
#stmsi_attach = false
|
||||
#mmec_value = 0
|
||||
#mtmsi_value = 0
|
||||
#ue_category = 4
|
||||
#feature_group = 0xe6041c00
|
||||
|
||||
[gui]
|
||||
enable = false
|
||||
|
||||
#####################################################################
|
||||
# Expert configuration options
|
||||
#
|
||||
# ue_category: Sets UE category (range 1-5). Default: 4
|
||||
# ip_netmask: Netmask of the tun_srsue device. Default: 255.255.255.0
|
||||
# rssi_sensor_enabled: Enable or disable RF frontend RSSI sensor. Required for RSRP metrics but
|
||||
# can cause UHD instability for long-duration testing. Default true.
|
||||
# ue_category: Sets UE category (range 1-5). Default: 4
|
||||
#
|
||||
# prach_gain: PRACH gain (dB). If defined, forces a gain for the tranmsission of PRACH only.,
|
||||
# prach_gain: PRACH gain (dB). If defined, forces a gain for the tranmsission of PRACH only.,
|
||||
# Default is to use tx_gain in [rf] section.
|
||||
# cqi_max: Upper bound on the maximum CQI to be reported. Default 15.
|
||||
# cqi_fixed: Fixes the reported CQI to a constant value. Default disabled.
|
||||
|
@ -146,7 +163,6 @@ enable = false
|
|||
[expert]
|
||||
#ip_netmask = 255.255.255.0
|
||||
#rssi_sensor_enabled = false
|
||||
#ue_category = 4
|
||||
#prach_gain = 30
|
||||
#cqi_max = 15
|
||||
#cqi_fixed = 10
|
||||
|
|
Loading…
Reference in New Issue