Systems and methods for bundling signals in a wireless communication system are disclosed. More in particular, the invention relates to a method for coating by depositing inorganic ions and a bioactive agent to provide sterile medical devices, wherein said coating improves the biocompatibility andor bioactivity of a medical device, such as an orthopedic or dental prosthesis. In one aspect, after an initial determination is made about whether finger movements are pointer gestures or scroll gestures, further movements may be detected and used to determine whether to correct the initial determination. That particular group is then subdivided successively by a factor of 2 and alternately checked to see if it is still causing the interference until a single mobile terminal is identified as the source of the interference. The ferromagnetic rod may be extendable through the opening in the housing.