According to a fourth aspect of the invention, the above mentioned objects are achieved with a mobile station device arranged for communication in a wireless communicating system, said system comprising:

one or more mobile stations, and

one or more access points, each access point being arranged for operating in active mode or in inactive mode; said mobile station device comprising:

a transmit unit arranged for transmitting a sensing signal indicating network and/or mobile station specific information associated with said mobile station.

According to a fifth aspect of the invention, the above mentioned objects are achieved with an access point or a control unit arranged for controlling network access points in a wireless communicating system, said method comprising:

one or more mobile stations, and

one or more access points, each access point being arranged for operating in active mode or in inactive mode; said access point or control unit comprising:

control means arranged for controlling transition from active mode to inactive mode, and vice versa, of one or more access points of said system based on a sensing signal indicating network and/or mobile station specific information associated with at least one mobile station of said system.

The present invention provides a solution for controlling the transition from an active mode to an inactive mode of access points in a communication system based on network statistics, such as traffic distribution, mobile station distribution, mobility and migration statics, etc.