Integration Manual

TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R04 Advance Information System description
Page 24 of 141
1.5.1.4 VCC or 3.3Vaux current consumption in LTE connected-mode
During a LTE connection, the module can transmit and receive continuously due to LTE radio access technology.
The current consumption is strictly dependent on the transmitted RF output power, which is always regulated by
network commands. These power control commands are logically divided into a slot of 0.5 ms (time length of
one Resource Block), thus the rate of power change can reach a maximum rate of 2 kHz.
Figure 8 shows an example of the module current consumption profile versus time in LTE connected-mode.
Detailed current consumption values can be found in TOBY-L2 Data Sheet [1] and in MPCI-L2 Data Sheet [2].
Time
[ms]
Current [mA]
Current consumption value
depends on TX power and
actual antenna load
1 Slot
1 Resource Block
(0.5 ms)
1 LTE Radio Frame
(10 ms)
0
300
200
100
500
400
600
700
800
Figure 8: VCC or 3.3Vaux current consumption profile versus time during LTE connection (TX and RX continuously enabled)