Method of controlling operation of a communication device, transceiver operating accordingly, and computer program

A transceiver arranged to operate in a cellular communication network employing a paging signal to allow discontinuous reception for communication devices, wherein the transceiver is arranged for three main communication states, a detached state where the transceiver is not registered to the cellular communication network, an idle state where the transceiver is registered to the cellular communication network and receives paging signals through discontinuous reception, and an active state where the transceiver is registered to the cellular communication network and performs communication with the cellular communication network essentially continuously, the transceiver comprising a controller arranged to control operation of the transceiver such that the transceiver:

• connects to the cellular communication network such that a transition from the detached state to either idle state or active state is made;
• performs scheduled operations in the active state or idle state;
• determines, when a transition from the active state to the idle state occurs, a time instant for next operation in the active state;
• and
• disconnects from the cellular communication network such that a transition to the detached state is made;
• wherein a timer circuit of the controller provides a signal such that when the time for next operation in the active state is approaching, the transceiver reconnects to the cellular communication network such that a transition from the detached state to either idle state or active state is made and then repeats said performing, determining, and disconnecting operations.