A transverse acoustic wave resonator includes a base, a resonator component, a number of driving electrodes fixed to the base and a number of fixing portions connecting the base and the resonator component. In the method, the mobile station measures receiving strengths of pilot channels transmitted from the first BSS and the second BSS, and transmits the measured receiving strengths to the BSC through the first BSS and the second BSS. The quarter wavelength retardation plate is composed of two retardation films including a half wavelength and a quarter wavelength retardation film. The method also includes, responsive to receiving the request, sending a docking session identifier and one or more respective references corresponding to the one or more peripheral functions to the user application. As the piston moves the tapered cone in a second direction, the diameter of the O-ring gradually contracts to move out of contact with the disc so as to release the disc.