Optionally, the first control resource set includes K*R first transmission units, where a serial number of a first transmission unit included in a k-th control resource subset is k*R+r, the value of k is 0 to K?1, and the value of r is 0 to R?1.

Optionally, the first control resource set includes K*R first transmission units, where a serial number of a first transmission unit included in a k-th control resource subset is k+r*K, the value of k is 0 to K?1, and the value of r is 0 to R?1.

Optionally, the first transmission unit includes T resource unit groups, the R first transmission units include R*T resource unit groups, and a serial number of a resource unit group included in an r-th first transmission unit is r*T+t, the value of r is 0 to R?1, and the value of t is 0 to T?1.

Optionally, the first transmission unit includes T resource unit groups, the R first transmission units include R*T resource unit groups, and a serial number of a resource unit group included in an r-th first transmission unit is r+t*R, the value of r is 0 to R?1, and the value of t is 0 to T?1.

Optionally, the serial numbers of at least two first transmission units of the S first transmission units are non-consecutive, where S≥2.

Optionally, the S first transmission units are located on one subband of the N subbands.

Optionally, the one subband is a subband where a channel use right is obtained.

FIG. 15 is another schematic structural diagram of the terminal device according to the present application. As shown in FIG. 15, the terminal device 150 includes: