RE: eDRX Mode+PSM Mode+Sleep Mode+Standby Mode+Active Mode Power Consumption

Martin Lesund — Tue, 04 Jun 2019 12:18:44 GMT

Hi Hardik,

1.) It depends on your application and usually how long you are going to sleep. Over 10 minutes between intervals it's usually better with PSM, but please read about the details here: https://www.gsma.com/newsroom/wp-content/uploads/CLP.28v1.0.pdf

2.) It depends on what the networks allow you to.

PSM: The maximum time a device may sleep is approximately 413 days (set by 3GPP Release 13 for T3412). The maximum time a device may be reachable is 186 minutes (an equivalent of the maximum value of the Active timer T3324).

eDRX: Maximum ~43minutes (~174minutes in NB-IoT mode)

3.) You can save battery by increasing the intervals between each time you gather the GPS data. You would not have the GPS on all the time since that will use a lot of power.

4.) You can request the intervals from the network. It is usually easier to get permission to increase the intervals than decreasing them. (here is a possible way to set the change the eDRX settings.)

5.) This can also be requested via AT commands

6.) You need to be more specific. What intervals, including GPS, how many times per day, how much data etc.

Best Regards,

Martin L