Hi,
I setup PSM mode on BG96 and it works flawlessly during last year. These days the PSM behavior of the modem suddenly changed and I cannot enter PSM with the scheduled timer. For example, I requested 16s active time and 10h sleep, and the network also assigned the same value to my modem. But I found the modem not enter PSM after 16s and keep output “+QPSMTIMER: 11400,16”. I tested many times and it turns out the modem would enter PSM eventually but the active time seems random to me. Below is full log:
[2021-03-19_14:45:01:866]+QPSMTIMER: 11400,16
[2021-03-19_14:45:26:747]
[2021-03-19_14:45:26:747]+QPSMTIMER: 11400,16
[2021-03-19_14:45:34:854]
[2021-03-19_14:45:34:854]+QPSMTIMER: 11400,16
[2021-03-19_14:45:39:466]
[2021-03-19_14:45:39:466]+QPSMTIMER: 11400,16
[2021-03-19_14:45:48:426]
[2021-03-19_14:45:48:426]+QPSMTIMER: 11400,16
[2021-03-19_14:46:06:587]
[2021-03-19_14:46:06:587]+QPSMTIMER: 11400,16
[2021-03-19_14:46:26:026]
[2021-03-19_14:46:26:026]+QPSMTIMER: 11400,16
[2021-03-19_14:46:31:466]
[2021-03-19_14:46:31:466]+QPSMTIMER: 11400,16
[2021-03-19_14:46:45:626]
[2021-03-19_14:46:45:626]+QPSMTIMER: 11400,16
[2021-03-19_14:46:51:067]
[2021-03-19_14:46:51:067]+QPSMTIMER: 11400,16
[2021-03-19_14:47:01:466]
[2021-03-19_14:47:01:466]+QPSMTIMER: 11400,16
[2021-03-19_14:47:17:584]
[2021-03-19_14:47:17:584]+QIURC: “pdpdeact”,1
[2021-03-19_14:47:17:892]
[2021-03-19_14:47:17:892]POWERED DOWN
Any suggestions will be much appreciated. Is this related to some PSM-related configuration?
Criss