Abstract: The invention relates to a method for controlling a communications device which has a main operating unit (10) and a subunit (11). In order to ensure that as little energy as possible is consumed, the invention provides that, after an operating period, operating state data for the main unit (10) are stored in a status memory (18) in the subunit (11) and, after this, the voltage supply for the main operating unit (10) is switched off in order to change the communications device to an energy saving mode, and in that, after the voltage supply for the main operating unit (10) has been switched on, the stored operating state data are transmitted from the status memory (18) to the main operating unit (10) in order to operate the communications device during the following operating period.

Abstract: The present invention relates to a method for controlling the transmission and reception activities of a local radiocommunications system having a main unit (MU) and at least one slave unit (SU). In the case of this local radiocommunications system, which operates at a low power level, in order to prevent mutual interference with an associated reference system, which operates at a relatively high power level, the invention provides that a timebase for communication with the slave unit or units (SU) is defined in the main unit (MU) as a function of the timebase of the reference system (12), and that the frame length (tFr) defined on the basis of the timebase is reported to each slave unit (SU).

Abstract: The invention relates to a method for controlling a communications device which has a main operating unit (10) and a subunit (11). In order to ensure that as little energy as possible is consumed, the invention provides that, after an operating period, operating state data for the main unit (10) are stored in a status memory (18) in the subunit (11) and, after this, the voltage supply for the main operating unit (10) is switched off in order to change the communications device to an energy saving mode, and in that, after the voltage supply for the main operating unit (10) has been switched on, the stored operating state data are transmitted from the status memory (18) to the main operating unit (10) in order to operate the communications device during the following operating period.