PSM active time not Correct

Good Day

I have enabled power saving on my nrf9160dk and am using NBIOT.  In doing so I found that there was a 60 sec offset to what I selected and what I wanted the active time to be.  IN doing some research I came across this question : 

The device is probably stuck in RRC idle for 60s before entering power saving mode.  This answer was never really solved and wanted to know if anybody found a way around this or if I will have to contact my provider?  If so, what would i need them to changed?

Kind regards,


Parents Reply
  • Not sure, if mixing things helps.

    According GSMA Energy Efficiency I see three phases

    - RRC connected, terminated by RAI (user) or RRC inactivity timer (network)

    - RRC idle, terminated by "PSM active timer" (requested by user, assigned by network)

    - power sleeping, terminated by MO data sending (user), or TAU (requested by user, assigned by network)

    From your sayings so far, your device is in idle and delayed switching to power sleeping.

    If that is true, neither RAI nor RRC inactivity timer should be the cause.

    If the device instead is in RRC connected and even the switch to RRC idle is delayed, then RAI or RRC inactivity timer applies.

    Therefore, please first try to provide a trace, or ensure using the events, that we all have the same and verified information.

    (Using RAI isn't that easy. It may be not supported, you never wrote, which protocol you use, TCP based or UDP based. With that, I would appreciate to precise the actual states in your case and not try to introduce new things, which may be just not related to your case.)

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