Apparatus and method for controlling decoding

A receiver comprising:

• a demodulator that demodulates a signal received from a transmitter;
• a channel quality measuring unit that measures a channel quality of the received signal;
• a channel decoder that includes a physical downlink control channel (PDCCH) decoder and decodes the demodulated signal for each channel;
• and
• a processor that is connected with the channel quality measuring unit and the channel decoder, and that is configured to:
• measure the channel quality based on the received signal;
• if a measurement of the channel quality is not a configuration condition based on having a value less than a threshold value, decode signals of each of PDCCH areas, in the received signal, indicated by configurable values of a channel format indicator (CFI);
• if the measurement of the channel quality is the configuration condition based on having a value greater than or equal to a threshold value, obtain a value of the CFI by decoding a physical control format indicator channel (PCFICH) of the received signal, and decode signals of a PDCCH area indicated by the obtained value of the CFI;
• and
• determine a downlink control indicator (DCI) based on the decoded signals.