nRF Connect SDK API 2.8.99
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◆ lte_lc_neighbor_search_type

#include <include/modem/lte_lc.h>

Specifies which type of search the modem should perform when a neighbor cell measurement is started.

When using search types up to LTE_LC_NEIGHBOR_SEARCH_TYPE_EXTENDED_COMPLETE, the result contains parameters from current/serving cell and optionally up to

CONFIG_LTE_NEIGHBOR_CELLS_MAX 

neighbor cells.

Result notification for Global Cell ID (GCI) search types include Cell ID, PLMN and TAC for up to gci_count (lte_lc_ncellmeas_params) surrounding cells.

Enumerator
LTE_LC_NEIGHBOR_SEARCH_TYPE_DEFAULT 

The modem searches the network it is registered to (RPLMN) based on previous cell history.

LTE_LC_NEIGHBOR_SEARCH_TYPE_EXTENDED_LIGHT 

The modem starts with the same search method as the default type. If needed, it continues to search by measuring the radio conditions and makes assumptions on where networks might be deployed, in other words, a light search. The search is limited to bands that are valid for the area of the current ITU-T region. If RPLMN is not found based on previous cell history, the modem accepts any found PLMN.

Note
This search type is only supported by modem firmware versions >= 1.3.1.
LTE_LC_NEIGHBOR_SEARCH_TYPE_EXTENDED_COMPLETE 

The modem follows the same procedure as for LTE_LC_NEIGHBOR_SEARCH_TYPE_EXTENDED_LIGHT, but will continue to perform a complete search instead of a light search, and the search is performed for all supported bands.

Note
This search type is only supported by modem firmware versions >= 1.3.1.
LTE_LC_NEIGHBOR_SEARCH_TYPE_GCI_DEFAULT 

GCI search, option 1. Modem searches EARFCNs based on previous cell history.

Note
This search type is only supported by modem firmware versions >= 1.3.4.
LTE_LC_NEIGHBOR_SEARCH_TYPE_GCI_EXTENDED_LIGHT 

GCI search, option 2. Modem starts with the same search method as in LTE_LC_NEIGHBOR_SEARCH_TYPE_GCI_DEFAULT. If less than gci_count cells were found, the modem performs a light search on bands that are valid for the area of the current ITU-T region.

Note
This search type is only supported by modem firmware versions >= 1.3.4.
LTE_LC_NEIGHBOR_SEARCH_TYPE_GCI_EXTENDED_COMPLETE 

GCI search, option 3. Modem starts with the same search method as in LTE_LC_NEIGHBOR_SEARCH_TYPE_GCI_DEFAULT. If less than gci_count cells were found, the modem performs a complete search on all supported bands.

Note
This search type is only supported by modem firmware versions >= 1.3.4.