As shown in FIG. 5, that the subframe format of the uplink transmission time-frequency resource indicates that two OFDM symbols are occupied is used as an example for description. The network side device configures a same GF time-frequency resource for a plurality of terminals whose IDs meet nk=1. The plurality of terminals: a terminal 1-0, a terminal 1-1, a terminal 1-2, . . . , a terminal 1-x may share a GF transmission time-frequency resource (shown in the part with oblique lines) corresponding to an identifier of one symbol and an identifier of one sub-band. The plurality of terminals may be multiplexed on the GF transmission time-frequency resource through time division, frequency division, or both time division and frequency division. Likewise, the network side device configures a same GF transmission time-frequency resource (shown in the part with grids) for a plurality of terminals: a terminal 2-0, a terminal 2-1, a terminal 2-2, . . . , a terminal 2-x whose IDs meet nk=2. Other sub-bands in the two OFDM symbols may be used for uplink transmission, or may be allocated to a terminal in another group for GF transmission.
FIG. 6 is a schematic structural diagram of uplink transmission performed by a terminal and a network side device according to an embodiment.
