Method and apparatus for conserving energy in a radio communication system

A satellite communication system (5) comprises at least controller (6) at least satellite (1). The controller (6) is suitable lead (208) of multiple information of multiple slots; each device with is chosen the number of message is separated (208). Selecting and an arrangement, and busbar are included in one inquiring group information. The device for customizing arranged on the inquiring group information (SCR selective call receiver (2) to act according to the device; during the information receiving is the lead (203) monitoring information. , And the controller (6) activates the satellite (1) is a SCR (2) sends the inquiring group information. Which is generated (SCR (2) message, and through a satellite (1), according to chosen device; during the information receiving is separated (203) is transmitted. The target SCR (2) automatically according to the arranged on the inquiring group information receiving to the receiving information.