A measuring method, applied to a 5G communication system, comprising: receiving, by a terminal device, measurement configuration information sent by a network device, wherein the measurement configuration information comprises configuration information of a plurality of transmission opportunities of a first reference signal on an unlicensed frequency band; receiving, by the terminal device, the first reference signal on the plurality of transmission opportunities and performing measurement on the first reference signal according to the configuration information; and determining, by the terminal device, cell quality according to a measurement value of the first reference signal received on the plurality of transmission opportunities, characterized in that the plurality of transmission opportunities belong to a same time window, and the configuration information comprises configuration information of the plurality of transmission opportunities within the time window, wherein before receiving, by the terminal device, measurement configuration information sent by the network device, the method further comprises: receiving, by the terminal device, mapping relationship information sent by the network device, wherein the mapping relationship information comprises at least one reference signal type and information about a time window corresponding to the at least one reference signal type, and the at least one reference signal type comprises a type of the first reference signal; determining, by the terminal device, a time window corresponding to the first reference signal according to the mapping relationship information and the type of the first reference signal; wherein receiving, by the terminal device, the first reference signal on the plurality of transmission opportunities and performing measurement on the first reference signal according to the configuration information comprises: receiving, by the terminal device, the first reference signal on the plurality of transmission opportunities within a time window corresponding to the first reference signal and performing measurement on the first reference signal according to the configuration information, wherein the information about the time window comprises a start position of the time window and/or an end position of the time window. receiving, by a terminal device, measurement configuration information sent by a network device, wherein the measurement configuration information comprises configuration information of a plurality of transmission opportunities of a first reference signal on an unlicensed frequency band; receiving, by the terminal device, the first reference signal on the plurality of transmission opportunities and performing measurement on the first reference signal according to the configuration information; and determining, by the terminal device, cell quality according to a measurement value of the first reference signal received on the plurality of transmission opportunities, characterized in that the plurality of transmission opportunities belong to a same time window, and the configuration information comprises configuration information of the plurality of transmission opportunities within the time window, wherein before receiving, by the terminal device, measurement configuration information sent by the network device, the method further comprises: receiving, by the terminal device, mapping relationship information sent by the network device, wherein the mapping relationship information comprises at least one reference signal type and information about a time window corresponding to the at least one reference signal type, and the at least one reference signal type comprises a type of the first reference signal; determining, by the terminal device, a time window corresponding to the first reference signal according to the mapping relationship information and the type of the first reference signal; wherein receiving, by the terminal device, the first reference signal on the plurality of transmission opportunities and performing measurement on the first reference signal according to the configuration information comprises: receiving, by the terminal device, mapping relationship information sent by the network device, wherein the mapping relationship information comprises at least one reference signal type and information about a time window corresponding to the at least one reference signal type, and the at least one reference signal type comprises a type of the first reference signal; determining, by the terminal device, a time window corresponding to the first reference signal according to the mapping relationship information and the type of the first reference signal; wherein receiving, by the terminal device, the first reference signal on the plurality of transmission opportunities and performing measurement on the first reference signal according to the configuration information comprises: receiving, by the terminal device, the first reference signal on the plurality of transmission opportunities within a time window corresponding to the first reference signal and performing measurement on the first reference signal according to the configuration information, wherein the information about the time window comprises a start position of the time window and/or an end position of the time window.