The invention discloses a method for determining a downlink
frequency selection scheduling resource and a device, which aim at selecting a physical
resource block corresponding to a subband with maximal subband channel quality indicator (CQI) value or with highest multi-channel
server (MCS) grade value of the subband CQI information when the downlink
frequency selection scheduling resource is determined, so a good channel condition can be guaranteed, and the downlink
throughput can be improved. The method comprises the steps that: the present subband channel quality indicator (CQI) information reported by a user terminal is received by a basic
station, a burst packet (BP) corresponding to the subband is determined according to the present subband CQI information, and the CQI value of the BP corresponding to the subband is updated; other subbands being attributive to the same
broadband frequency band with the subband are determined, and the subband CQI value corresponding to other subbands is reduced; and a subband with the highest CQI value is determined from the subbands of the BP, and a
resource block group (RBG) corresponding to the determined subband is determined as the downlink
frequency selection scheduling resource corresponding to the BP.