During limited service sleep, the modem sleeps between cell search attempts. The length of the sleep depends on the search pattern. The application configuration can affect which search pattern is used.
Synchronizing uplink data with limited service sleep does not offer any power savings. The User Equipment (UE) is not camped on a cell where data sending is possible. The application can save power by deactivating hardware components during limited service sleep and allocating resources used by the modem for other purposes.
The following notification example indicates the activation of limited service sleep with a 20000 ms period:
%XMODEMSLEEP: 3,20000The following notification example is a prewarning of the end of the limited service sleep 1500 ms before the sleep ends:
%XMODEMSLEEP: 3,1500The following notification example indicates that the limited service sleep has ended as <warning_time> is 0:
%XMODEMSLEEP: 3,0