CONFIG_LTE_NETWORK_USE_FALLBACK

Use fallback network mode if selected mode fails

Type: bool

Help

When enabled, the network mode will be switched to the other
available if the preferred fails to establish connection within
specified timeout.
If LTE-M is selected as the network mode, NB-IoT will be the
fallback mode and vice versa.
Fallback should not be enabled if both LTE-M and NB-IoT are enabled.
Instead, the LTE preference configuration should be used to
instruct the modem on which network to use. This is more efficient
both in terms of time to connection establishment and energy
consumption.

Direct dependencies

LTE_LINK_CONTROL

(Includes any dependencies from ifs and menus.)

Default

y if !(LTE_NETWORK_MODE_LTE_M_NBIOT || LTE_NETWORK_MODE_LTE_M_NBIOT_GPS)

Kconfig definition

At <nRF>/lib/lte_link_control/Kconfig:226

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:33 → <Zephyr>/modules/Kconfig:6 → <nRF>/doc/_build/kconfig/Kconfig.modules:2 → <nRF>/Kconfig.nrf:94 → <nRF>/lib/Kconfig:16

Menu path: (Top) → Modules → nrf (/home/runner/work/sdk-nrf/sdk-nrf/ncs/nrf) → Nordic nRF Connect → Libraries → nRF91 LTE Link control library

config LTE_NETWORK_USE_FALLBACK
    bool "Use fallback network mode if selected mode fails"
    default y if !(LTE_NETWORK_MODE_LTE_M_NBIOT || LTE_NETWORK_MODE_LTE_M_NBIOT_GPS)
    depends on LTE_LINK_CONTROL
    help
      When enabled, the network mode will be switched to the other
      available if the preferred fails to establish connection within
      specified timeout.
      If LTE-M is selected as the network mode, NB-IoT will be the
      fallback mode and vice versa.
      Fallback should not be enabled if both LTE-M and NB-IoT are enabled.
      Instead, the LTE preference configuration should be used to
      instruct the modem on which network to use. This is more efficient
      both in terms of time to connection establishment and energy
      consumption.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)