Measuring method, base station, and terminal

A measurement method, comprising:

• receiving, by a terminal, a switching message of a narrow-bandwidth receiving mode from a base station;
• switching, by the terminal, to a specified narrow bandwidth for information reception;
• and
• sequentially switching, by the terminal, to at least two different measurement narrow bandwidths according to scheduling of the base station, to measure downlink reference signals, when channel state information (CSI) of a downlink channel needs to be measured,
• wherein each of the narrow bandwidth and the at least two different measurement narrow bandwidths is smaller than a system bandwidth.

A terminal, comprising:

• a processor, a memory, a transmitter, a receiver and a bus, the processor, the memory, the transmitter and the receiver being connected through the bus, wherein the transmitter is arranged to transmit a signal, the receiver is arranged to receive the signal, the transmitter and the receiver are independently arranged respectively or integrated, the memory is arranged to store a set of program codes, and the processor is arranged to call the program codes stored in the memory to execute the following operations:
• receiving, through the receiver, a switching message of a narrow-bandwidth receiving mode from a base station;
• switching to a specified narrow bandwidth for information reception;
• and
• when channel state information (CSI) of a downlink channel needs to be measured, sequentially switching, according to scheduling of the base station, to at least two different measurement narrow bandwidths to measure downlink reference signals,
• wherein each of the narrow bandwidth and the at least two different measurement narrow bandwidths is smaller than a system bandwidth.