Keep ppp alive when host suspend?

Hi I am use EC25, and is there any way to keep ppp alive when host go into suspend?
Here is the command I used.
$ pppd call quectel-ppp &
$ ping
Get response, make sure net is working.
$ rtcwake -m mem -s 600
Wait wake up, and the internet is disconnect, I need to re run ** $ pppd call quectel-ppp & ** to make it connected again, any way to fix it?

hello there
If module in PPP dialing, it means there is data interaction and cannot sleep at this time, thank you.