Modem Status, Customization, and Reset Commands
Rev.
6
Oct.18
Proprietary and Confidential - Contents subject to change
47
+CPSMS
Configure Power Saving Mode (PSM)
Enable/disable and configure the UE’s Power Saving Mode parameters.
Note: This implementation of +CPSMS follows 3GPP TS 27.007, with exceptions as noted in
the parameter descriptions.
Supporting devices:
WP76xx/WP77xx. Not supported by WP8548/WP75xx.
Password required:
No
Usage:
•
Execution:
AT+CPSMS=<mode>[, <Requested_Periodic-RAU>],
[<Requested_GPRS-READY-timer>], [<Requested_Periodic-TAU>],
[<Requested_Active-Time>]
Response:
OK
or
+CME ERROR: <err>
Purpose:
Enable/disable PSM, and configure PSM settings.
•
Query:
AT+CPSMS?
Response:
+CPSMS: <mode>, [<Requested_Periodic-RAU>], [<Request-
ed_GPRS-READY-timer>], [<Requested_Periodic-TAU>], [<Request-
ed_Active-Time>]
OK
Purpose:
Report current PSM status and settings.
•
Query List:
AT+CPSMS=?
Purpose:
Return the execution command format and the supported parameter values.
Parameters:
<mode> (Enable/Disable PSM)
•
0—Disable PSM
•
1—Enable PSM
<Requested_Periodic-RAU> (3G Routing Area Update timer)
•
Leave blank, not used by WP76xx/WP77xx
<Requested_GPRS-READY-timer> (2G timer)
•
Leave blank, not used by WP76xx/WP77xx
<Requested_Periodic-TAU> (TAU timer—Amount of time UE will be dormant before timer
wakes it)
•
One byte (8 bits) represented as a string. For coding and value range details, refer to
the +CPSMS description in 3GPP TS 27.007.
•
Default—"00011000"=4 hours
•
e.g. "01000111" = 70 hours
<Requested_Active-Time> (Amount of time UE will remain active (idle) before re-entering
PSM)
•
One byte (8 bits) represented as a string. For coding and value range details, refer to
the +CPSMS description in 3GPP TS 27.007.
•
Default—"00001010"=20 seconds
•
e.g. "00100100" = 4 minutes
Table 3-2: Modem Status Command Details (Continued)
Command
Description
