5g-team
/
srsRAN_4G
mirror of https://github.com/pvnis/srsRAN_4G.git
2
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fixed SIB searching

Browse Source
master
Ismael Gomez 7 years ago
parent cd2e4f5a75
commit 90de622f6c
1 changed files with 14 additions and 6 deletions
Show Stats Download Patch File Download Diff File

20
srsue/src/upper/rrc.cc
Unescape Escape View File

@ -341,11 +341,14 @@ void rrc::run_si_acquisition_procedure()
// Instruct MAC to look for SIB1 // Instruct MAC to look for SIB1
tti = mac->get_current_tti(); tti = mac->get_current_tti();
si_win_start = sib_start_tti(tti, 2, 0, 5); si_win_start = sib_start_tti(tti, 2, 0, 5);
if (tti > last_win_start + 10) { if (last_win_start == 0 ||
(srslte_tti_interval(last_win_start, tti) > 20 && srslte_tti_interval(last_win_start, tti) < 1000))
{
last_win_start = si_win_start; last_win_start = si_win_start;
mac->bcch_start_rx(si_win_start, 1); mac->bcch_start_rx(si_win_start, 1);
rrc_log->debug("Instructed MAC to search for SIB1, win_start=%d, win_len=%d\n", rrc_log->info("Instructed MAC to search for SIB1, win_start=%d, win_len=%d, interval=%d\n",
si_win_start, 1); si_win_start, 1, srslte_tti_interval(last_win_start, tti));
nof_sib1_trials++; nof_sib1_trials++;
if (nof_sib1_trials >= SIB1_SEARCH_TIMEOUT) { if (nof_sib1_trials >= SIB1_SEARCH_TIMEOUT) {
if (state == RRC_STATE_CELL_SELECTING) { if (state == RRC_STATE_CELL_SELECTING) {
@ -369,13 +372,15 @@ void rrc::run_si_acquisition_procedure()
tti = mac->get_current_tti(); tti = mac->get_current_tti();
period = liblte_rrc_si_periodicity_num[serving_cell->sib1.sched_info[sysinfo_index].si_periodicity]; period = liblte_rrc_si_periodicity_num[serving_cell->sib1.sched_info[sysinfo_index].si_periodicity];
si_win_start = sib_start_tti(tti, period, offset, sf); si_win_start = sib_start_tti(tti, period, offset, sf);
si_win_len = liblte_rrc_si_window_length_num[serving_cell->sib1.si_window_length];
if (tti > last_win_start + 10) { if (last_win_start == 0 ||
(srslte_tti_interval(last_win_start, tti) > period*10 && srslte_tti_interval(last_win_start, tti) < 1000))
{
last_win_start = si_win_start; last_win_start = si_win_start;
si_win_len = liblte_rrc_si_window_length_num[serving_cell->sib1.si_window_length];
mac->bcch_start_rx(si_win_start, si_win_len); mac->bcch_start_rx(si_win_start, si_win_len);
rrc_log->debug("Instructed MAC to search for system info, win_start=%d, win_len=%d\n", rrc_log->info("Instructed MAC to search for system info, win_start=%d, win_len=%d\n",
si_win_start, si_win_len); si_win_start, si_win_len);
} }
@ -1313,6 +1318,9 @@ void rrc::write_pdu_bcch_dlsch(byte_buffer_t *pdu) {
handle_sib13(); handle_sib13();
} }
} }
last_win_start = 0;
if(serving_cell->has_valid_sib2) { if(serving_cell->has_valid_sib2) {
sysinfo_index++; sysinfo_index++;
} }

Write Preview
Loading…
Cancel
Save