The invention discloses three schemes for a method for measuring carrier frequency information in a
wireless communication
system. One of the three schemes includes that a
base station sends out a
quiet period indication signaling at a downlink channel, and a terminal which successfully receives the
quiet period indication signaling sent out by the
base station measures the carrier frequency information at a first time-frequency resource and feeds back a measurement result of the carrier frequency information to the
base station at a second time-frequency resource. The invention also discloses three schemes for a
system for measuring the carrier frequency information in the
wireless communication
system. One of the three schemes includes that a carrier frequency information measurement and feedback unit is used on the condition that the base
station sends out the
quiet period indication signaling at the downlink channel, the terminal which successfully receives the quiet period indication signaling sent out by the base
station measures the carrier frequency information at the first time-frequency resource and feeds back the measurement result of the carrier frequency information to the base
station at the second time-frequency resource. By the aid of the method and the system, the base station can know channel quality situations of all terminals on the current carrier frequency.