u-blox LARA-R2 series System Integration Manual page 24

1.5.1.5 VCC current consumption in fixed active-mode (power saving disabled)
Power saving configuration is by default disabled, or it can be disabled using the appropriate AT command (see
u-blox AT Commands Manual [2], AT+UPSV command). When power saving is disabled, the module does not
automatically enter idle-mode whenever possible: the module remains in active-mode.
The module processor core is activated during active-mode, and the 26 MHz reference clock frequency is used.
Figure 9 illustrates a typical example of the module current consumption profile when power saving is disabled.
In such case, the module is registered with the network and while active-mode is maintained, the receiver is
periodically activated to monitor the paging channel for paging block reception. Detailed current consumption
values can be found in LARA-R2 series Data Sheet [1].
Current [mA]
100
0
Paging period
Current [mA]
2G case: 0.44-2.09 s
3G case: 0.61-5.09 s
LTE case: 0.32-2.56 s
100
0
Figure 9: VCC current consumption profile with power saving disabled and module registered with the network: active-mode is
always held and the receiver is periodically activated to monitor the paging channel for paging block reception
UBX-16010573 - R02
RX
Enabled
ACTIVE MODE
Objective Specification
LARA-R2 series - System Integration Manual
Time [s]
Time [ms]
System description
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