A communication method, comprising: a) determining, by a network device, a first sub-band and a second sub-band of a filtered orthogonal frequency division multiplex, F-OFDM, sub-band division; b) sending, by the network device, configuration information of the second sub-band to a user equipment on the first sub-band, wherein the configuration information of the second sub-band comprises identification information of the second sub-band, the identification information of the second sub-band is used by the user equipment to determine a physical layer basic parameter of the second sub-band, and a physical layer basic parameter of the first sub-band is different from the physical layer basic parameter of the second sub-band; wherein the physical layer basic parameter comprises at least one of a subcarrier bandwidth, a transmission time interval, TTI, a symbol length, a symbol quantity, or a cyclic prefix, CP, length; and c) communicating, by the network device, with the user equipment by using the second sub-band; the method characterised in that it further comprises: sending, by the network device, information about an uplink sub-band corresponding to the first sub-band on the first sub-band, wherein said correspondence indicates that response data is fed back by the user equipment on the uplink sub-band according to data received on the first sub-band, and wherein the TTI of the uplink sub-band corresponding to the first sub-band is same as the TTI of the first sub-band, or the TTI of the first sub-band is an integer multiple of the TTI of the uplink sub-band corresponding to the first sub-band. a) determining, by a network device, a first sub-band and a second sub-band of a filtered orthogonal frequency division multiplex, F-OFDM, sub-band division; b) sending, by the network device, configuration information of the second sub-band to a user equipment on the first sub-band, wherein the configuration information of the second sub-band comprises identification information of the second sub-band, the identification information of the second sub-band is used by the user equipment to determine a physical layer basic parameter of the second sub-band, and a physical layer basic parameter of the first sub-band is different from the physical layer basic parameter of the second sub-band; wherein the physical layer basic parameter comprises at least one of a subcarrier bandwidth, a transmission time interval, TTI, a symbol length, a symbol quantity, or a cyclic prefix, CP, length; and c) communicating, by the network device, with the user equipment by using the second sub-band; the method characterised in that it further comprises: sending, by the network device, information about an uplink sub-band corresponding to the first sub-band on the first sub-band, wherein said correspondence indicates that response data is fed back by the user equipment on the uplink sub-band according to data received on the first sub-band, and wherein the TTI of the uplink sub-band corresponding to the first sub-band is same as the TTI of the first sub-band, or the TTI of the first sub-band is an integer multiple of the TTI of the uplink sub-band corresponding to the first sub-band.