text: The embodiment of the invention relates to the field of communication, in particular to a shielding method and a device for a wireless communication system, which is used for interfering the time frequency position occupied by the reference pilot signal of the downlink subframe. In one embodiment of the invention, to obtain configuration information to be shielded by empty cell interception in the configuration information including cell frequency, frame timing, slot timing and receive power; according to the frame timing and slot timing, determined to be shielded cell reference pilot signal occupies the time-frequency location; according to the cell frequency and receiving power. To generate the same frequency interference signal; the same frequency interference signal is loaded into the reference pilot signal occupies the time-frequency location, in order to make the pilot signal shielding system occupy the time-frequency location of load disturbance signal in the downlink sub frame of reference.