METHOD AND APPARATUS FOR DETERMINING SIGNAL QUALITY INFORMATION OF FREQUENCY POINT

This application provides a method and an apparatus for determining signal quality information of a frequency. In this method, terminal devices do not need to perform inter-frequency measurement or inter-RAT measurement, but only need to perform intra-frequency measurement and report signal quality information of an intra-frequency to a network device, so that the network device can determine signal quality information of an inter-frequency. In this way, the network device may select a carrier for the terminal devices based on the signal quality information of the intra-frequency and the signal quality information of the inter-frequency. Clearly, because the terminal devices do not need to perform the inter-frequency measurement or the inter-RAT measurement, in addition to ensuing a carrier selection gain, the method can further ensure service continuity and service throughputs of the terminal devices, and avoid overheads of the inter-frequency measurement and the inter-RAT measurement. In addition, because time lengths in which the terminal devices perform the intra-frequency measurement are far less than time lengths in which the terminal devices perform the inter-frequency measurement and the inter-RAT measurement, the method may further shorten a time length in which the network device determines the signal quality information of the inter-frequency.