[srslte-users] cell measurements with zmq

[J Giovatto]

Hi Folks,

Im trying to experiment with the intra measure feature with zmq 1 carrier.

Looking at the (very helpful) state diagram in
"/hdr/phy/scell/intra_measure.h/" it looks like

the call to "/set_cells_to_meas()/" is required to get things started.

Looking for this call I see a few places where this might occur:

A) /void rrc::cell_reselection_proc::then(const srsran::proc_state_t&
result)/

/{//
//  Info("XXX rrc::cell_reselection_proc::then, connected %d, registered
%d, changed %d",//
//        rrc_ptr->is_connected(), rrc_ptr->nas->is_registered(),
cell_sel_result == cs_result_t::changed_cell);//
//  //
//  // Schedule cell reselection periodically, while rrc is idle//
//  if (not rrc_ptr->is_connected() and rrc_ptr->nas->is_registered()) {//
//   //if (cell_sel_result == cs_result_t::changed_cell) {//
//      // TS 36.304 5.2.4.6 - Intra-frequency and equal priority
inter-frequency Cell Reselection criteria//
//      // the UE shall reselect a new cell if more than 1 second has
elapsed since the UE camped//
//      // on the current serving cell.//
//      reselection_timer.set(cell_reselection_periodicity_long_ms);//
//
//      // start intra-frequency measurements if necessary//
//      // UE must start intra-frequency measurements//
//      auto pci =
rrc_ptr->meas_cells.get_neighbour_pcis(rrc_ptr->meas_cells.serving_cell().get_earfcn());//
//     //rrc_ptr->phy->set_cells_to_meas(rrc_ptr->meas_cells.serving_cell().get_earfcn(),
pci);//
//    } else {//
//      reselection_timer.set(cell_reselection_periodicity_ms);//
//    }//
/

15:09:07.891697 [RRC    ] [I] Proc "Cell Reselection" - XXX
rrc::cell_reselection_proc::then, connected 0, registered 1, changed 0
15:09:07.897493 [RRC    ] [I] Proc "Cell Reselection" - XXX
rrc::cell_reselection_proc::then, connected 0, registered 1, changed 0
15:09:07.904569 [RRC    ] [I] Proc "Cell Reselection" - XXX
rrc::cell_reselection_proc::then, connected 0, registered 1, changed 0
15:09:07.911452 [RRC    ] [I] Proc "Cell Reselection" - XXX
rrc::cell_reselection_proc::then, connected 0, registered 1, changed 0


There is also an opportunity here but the for loop is never run.

/B) void rrc::rrc_meas::update_phy()//
//{//
//  std::list<meas_obj_to_add_mod_s> objects =
meas_cfg.get_active_objects();//
//  rrc_ptr->phy->meas_stop();//
//  rrc_ptr->rrc_nr->phy_meas_stop();/

///  logger.info("XXX rrc::rrc_meas::update_phy, objects %zu",
objects.size());//
//
//  for (const auto& obj : objects) {//
//    switch (obj.meas_obj.type().value) {//
//      case
meas_obj_to_add_mod_s::meas_obj_c_::types_opts::meas_obj_eutra: {//
//        std::set<uint32_t> neighbour_pcis =
rrc_ptr->get_cells(obj.meas_obj.meas_obj_eutra().carrier_freq);//
//        for (const auto& cell :
obj.meas_obj.meas_obj_eutra().cells_to_add_mod_list) {//
//          neighbour_pcis.insert(cell.pci);//
//        }//
//        // Instruct PHY to look for cells IDs on this frequency. If
neighbour_pcis is empty it will look for new cells//
//       
rrc_ptr->phy->set_cells_to_meas(obj.meas_obj.meas_obj_eutra().carrier_freq,
neighbour_pcis);//
//        break;//
//      }//
//      case
meas_obj_to_add_mod_s::meas_obj_c_::types_opts::meas_obj_nr_r15: {//
//       
rrc_ptr->rrc_nr->phy_set_cells_to_meas(obj.meas_obj.meas_obj_nr_r15().carrier_freq_r15);//
//        break;//
//      }//
//      default://
//        logger.error("Not supported");//
//        break;//
//    }//
//    // Concatenate cells indicated by enodeb with discovered neighbours//
//  }//
//}/

15:08:24.616536 [RRC    ] [I] XXX rrc::rrc_meas::update_phy, objects 0


1) Is there some other condition that needs to be met to get things
started ?

2) can I run the ue with 2 carrriers and have some interplay between 2
enb with single carriers ?


Joe

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