Set command

The command sets the power saving mode. Sets activity timer and Power Saving Mode (PSM) period after Non-access Stratum (NAS) signaling connection release. Configured values are stored in the non-volatile memory when the device is powered off with +CFUN=0.

Syntax:

+CPSMS=[<mode>[,<Requested_Periodic-RAU>,<Requested_GPRS-READY-timer>
,<Requested_Periodic-TAU>[,<Requested_Active-Time>]]]

The command can be given as +CPSMS= (with all parameters omitted). In this form, the parameter <mode> is set to 0, the use of PSM is disabled, and data for all parameters is set to the manufacturer-specific default values.

The set command parameters and their defined values are the following:

<mode>
0 – Disable power saving mode
1 – Enable power saving mode
<Requested_Periodic-RAU>
Ignored
<Requested_GPRS-READY-timer>
Ignored
<Requested_Periodic-TAU>
String. One byte in 8-bit format.

Optional. Timer value updated if present. For the coding and value range, see the GPRS Timer 3 IE in 3GPP TS 24.008 Table 10.5.163a/3GPP TS 24.008.

Note: If the USIM profile in use is a Verizon one, the minimum value for <Requested_Periodic-TAU> is 190 minutes.
<Requested_Active-Time>
String. One byte in 8-bit format.

Optional. Timer value updated if present. For the coding and value range, see the GPRS Timer 2 IE in 3GPP TS 24.008 Table 10.5.163/3GPP TS 24.008.

The following command example enables power saving mode and set timer values. Set Periodic-TAU timer to 10 minutes and Active-Time to 1 minute.

AT+CPSMS=1,"","","10101010","00100001"
OK

The following command example disables power saving mode:

AT+CPSMS=0
OK

The following command example disables power saving mode and sets timer to default values:

AT+CPSMS=
OK