The integrated circuit package according to the present invention comprises: a plurality of functioning units operable to perform processing on input data and output a result of the processing; a plurality of antenna units each of which is positioned to (i) receive radio-transmitted data from at least another one of the plurality of antenna units by radio and (ii) transmit data to at least another one of the plurality of antenna units by radio; a first switching unit operable to selectively connect output of a first functioning unit, which is one of the plurality of functioning units, and a first antenna unit, which is one of the plurality of antenna units; and a second switching unit operable to selectively connect a second antenna unit, which is positioned to receive the radio-transmitted data from the first antenna unit by radio, and input of a second functioning unit different from the first functioning unit.