Dynamic sub-band allocation in the time-variant channel

摘要

Disclosed are a communication method of dynamically allocating subbands in a time-variant channel and a device therefor. In particular, the communication device using dynamically allocated subbands in a time-variant channel includes a subband allocation mode selection unit that selects any one of subband allocation modes based on a communication requirement; a channel estimation unit that performs channel estimation on a plurality of subbands based on the currently selected subband allocation mode; and a control unit that transmits channel estimation information on the subbands to a subband allocation device and is allocated at least one subband satisfying the communication requirement from the subband allocation device.