Specifications

AirPrime UMTS / LTE MC/SL-Series Extended AT Command Reference
268 Proprietary and Confidential 2130616
!THERMTIMERS
Supporting chipsets:
• MDM8200
• MDM8220 (min f/w rev:
N2.0 Release 6)
• MDM9200 (min f/w rev:
M1.0 Release 3,
X3.0 Beta 6)
Set/report thermal mitigation algorithm timer details
Set/report the timers and related values used in the thermal mitigation algorithm.
Usage:
• Execution: AT!THERMTIMERS=<basic loop>,<mitigation loop>,<T_down>,
<Misc time>,<Pa_change_holdoff>
Response: OK
Purpose: Set the timers and related values for the thermal mitigation algorithm.
• Query: AT!THERMTIMERS?
Response:
Basic loop(ms)=<basic loop>
Mitigation loop(ms)=<mitigation loop>
T_down(ms)=<T_down>
Misc time(ms)=<Misc time>
Pa_change_holdoff=<Pa_change_holdoff>
OK
Purpose: Show the timers and related values for the thermal mitigation
algorithm.
• Query List: AT!THERMTIMERS=?
Purpose: Display the execution command format and parameter values.
Parameters:
<basic loop> (Normal state—time period to wait between temperature measurements)
• Units—ms
<mitigation loop> (Mitigate and emergency states—time period to wait between
temperature measurements)
• Units—ms
<T_down> (Mitigation state timer—time period to use reduced Tx power during
mitigation state)
• Units—ms
<Misc time> (Mitigation state timer—time period to use max Tx power during mitigation
state)
• Units—ms
<Pa_change_h> (Number of mitigation loops between Tx power reductions)
• 0–255
• Example: If Max Tx power is 25 dB, the delta Tx power (amount to reduce Tx
power) is 3 dB, and <Pa_change_h> is 4, then:
• When device enters mitigation state from normal state, Tx power decreases
to 22 dB.
• After <Pa_change_h> * <mitigation loop> ms, if the temperature is still higher
than <threshold1>, the Tx power reduces to 19 dB.
Note: To set or report the delta Tx power value, see !THERMDELTATX on page 264.
Table 13-2: Thermal mitigation command details (Continued)
Command Description