Product Info

LTE Module Series
BG96 Hardware Design
BG96_Hardware_Design 32 / 81
mode is similar to power-off, but the module remains registered on the network
and there is no need to re-attach or re-establish PDN connections.So BG96 in
PSM cannot immediately respond users’ requests.
When the module wants to use the PSM it shall request an Active Time value
during every Attach and TAU procedures. If the network supports PSM and
accepts that the module uses PSM, the network confirms usage of PSM by
allocating an Active Time value to the module. If the module wants to change
the Active Time value, e.g. when the conditions are changed in the module, the
module consequently requests the value it wants in the TAU procedure.
If PSM is supported by the network, then it can be enabled via AT+CPSMScommand.
Either of the following methods will wake up the module from PSM:
 Drive PWRKEY pin to low level will wake up the module.
 When the T3412_Exttimer expires, the module will be automatically woken up.
Please refer to document [2] for details about AT+CPSMScommand.
3.4.3. Extended Idle Mode DRX(e-I-DRX)
The module (UE) and the network may negotiate over non-access stratum
signalling the use of e-I-DRX for reducing its power consumption, while being
available for mobile terminating data and/or network originated procedures
NOTE