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srsLTE
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Select strongest cell after cell search (#2001) 

* Select strongest cell in all frequencies when

* Change variable name
This commit is contained in:
Ismael Gomez 2020-11-10 13:10:42 +01:00 committed by Andre Puschmann
parent 524453a6af
commit 67690136be
1 changed files with 7 additions and 9 deletions
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14
srsue/src/stack/rrc/rrc_procedures.cc
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@ -505,17 +505,15 @@ proc_outcome_t rrc::cell_selection_proc::init(std::vector<uint32_t> required_sib
required_sibs.insert(required_sibs.end(), mandatory_sibs.begin(), mandatory_sibs.end());
init_serv_cell = meas_cells->serving_cell().phy_cell;
// Check if there are sronger neighbors in same EARFCN
// Check if there are stronger neighbors in any EARFCN
const sib_type3_s* sib3 = meas_cells->serving_cell().sib3ptr();
uint32_t threshold = sib3 != nullptr ? sib3->cell_resel_serving_freq_info.thresh_serving_low * 2 : 5;
bool stronger_neigh_in_earfcn =
std::any_of(meas_cells->begin(), meas_cells->end(), [this, threshold](const unique_cell_t& c) {
return meas_cells->serving_cell().get_earfcn() == c->get_earfcn() and std::isnormal(c->get_rsrp()) and
meas_cells->serving_cell().get_rsrp() + threshold < c->get_rsrp();
uint32_t threshold = sib3 != nullptr ? sib3->cell_resel_serving_freq_info.thresh_serving_low * 2 : 3;
bool stronger_neigh = std::any_of(meas_cells->begin(), meas_cells->end(), [this, threshold](const unique_cell_t& c) {
return std::isnormal(c->get_rsrp()) and meas_cells->serving_cell().get_rsrp() + threshold < c->get_rsrp();
});
// Skip cell selection if serving cell is suitable and there are no stronger neighbours in same earfcn
if (is_serv_cell_suitable() and not stronger_neigh_in_earfcn) {
if (is_serv_cell_suitable() and not stronger_neigh) {
Debug("Skipping cell selection procedure as there are no stronger neighbours in same EARFCN.\n");
return set_proc_complete();
}
@ -535,7 +533,7 @@ proc_outcome_t rrc::cell_selection_proc::init(std::vector<uint32_t> required_sib
neigh_index = 0;
cs_result = cs_result_t::no_cell;
discard_serving = false;
serv_cell_select_attempted = stronger_neigh_in_earfcn;
serv_cell_select_attempted = stronger_neigh;
cell_search_called = false;
state = search_state_t::cell_selection;
return start_next_cell_selection();