a signal transceiver circuit, configured to receive and store an uplink transmission time-frequency resource allocated by a network side device to a terminal;
a memory, configured to store the uplink transmission time-frequency resource received by the signal transceiver circuit; and
a processing circuit, configured to: when the terminal needs to send an uplink signal, determine the to-be-transmitted uplink signal based on a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the uplink transmission time-frequency resource stored in the memory, where
the signal transceiver circuit is further configured to send, to the network side device, the uplink signal determined by the processing circuit.
In another implementation, an embodiment provides a communications chip, and the communications chip includes:
a signal transceiver circuit, configured to receive an uplink transmission time-frequency resource allocated by a network side device and an uplink transmission indication, where the uplink transmission indication is used to indicate a time-frequency resource that is in the uplink transmission time-frequency resource and that can be used by a terminal to perform uplink transmission;
a memory, configured to store the uplink transmission time-frequency resource and the uplink transmission indication that are received by the signal transceiver circuit; and