Communications control apparatus CCUn involved in unitary tile carpet CPn has functions of performing communication with communications terminal TRX and wired communication with other communication control apparatus CCUn in adjoining tile carpet CPn. Each tile carpet CPn is laid out on the floor and connected to adjoining tile carpet CPn via connector CNn. Thus, a plurality of tile carpet CPn forms local area network LAN. Communication terminal TRX functions as a terminal of LAN.