The present invention relates to a method of allocating a transmission band to a terminal in a Wireless Personal Area Network (WPAN). The method includes: determining an allocation period of a transmission band on the basis of characteristic information that a terminal has; transmitting a transmission band request to a WPAN coordinator; and receiving information relating to the transmission band allocation from the WPAN coordinator. The transmission band request includes the allocation period of the transmission band determined by the terminal; and the transmission band allocation is determined based on the transmission band allocation period determined by the terminal.