A protective coating for protecting a component of a gas turbine engine or such from wear is provided with a base coating consisting essentially of metal and including a pore, and a spherical particle filling the pore, at least a surface of which consists essentially of a ceramic. The mobile station monitors radio condition quality corresponding to a plurality of branches, selects one or more addition branch candidates based on the monitored radio condition quality. The button locking mechanism further includes a first elastic component connected to the blocking component for pushing the blocking component to move in a third direction opposite to the second direction so as to prevent the button from being pressed down.