Data transmission method and terminal device

1. A method for transmitting data, comprising:

configuring a multiple access mode of uplink transmission for a terminal device; and

sending the multiple access mode of uplink transmission to the terminal device;

wherein the multiple access mode of uplink transmission is used for the terminal device to determine a multiplexing mode of a first uplink signal and a second uplink signal on a target time domain resource, wherein the first uplink signal and the second uplink signal are signals which the terminal device is scheduled to transmit on the target time domain resource simultaneously.

2. The method according to claim 1 , wherein multiple access modes of the uplink transmission comprise Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) and Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM).

3. The method according to claim 1 , wherein the first uplink signal and the second uplink signal are sent simultaneously on the target time domain resource, when the multiple access mode of the uplink transmission is CP-OFDM.

4. The method according to claim 3 , wherein the first uplink signal and the second uplink signal are sent simultaneously on the target time domain resource, when the multiple access mode of the uplink transmission is CP-OFDM, comprises at least one of:

the first uplink signal and the second uplink signal are sent simultaneously on the target time domain resource by frequency division multiplexing, when a frequency domain resource occupied by the first uplink signal and a frequency domain resource occupied by the second uplink signal do not overlap; or

the first uplink signal and the second uplink signal are sent simultaneously on an overlapping frequency domain resource, when a frequency domain resource occupied by the first uplink signal and a frequency domain resource occupied by the second uplink signal partially or completely overlap.

5. The method according to claim 1 , wherein a third uplink signal from the first uplink signal and the second uplink signal is determined, when the multiple access mode of the uplink transmission is DFT-S-OFDM; and the third uplink signal is sent on the target time domain resource.

6. The method according to claim 5 , wherein a priority of the first uplink signal and a priority of the second uplink signal is determined and sent to the terminal device, and the third uplink signal is determined from the first uplink signal and the second uplink signal according to the priority of the first uplink signal and the priority of the second uplink signal.

7. The method according to claim 6 , wherein the priority of the first uplink signal and the priority of the second uplink signal is determined in accordance with a first criterion according to a signal type to which the first uplink signal belongs and a signal type to which the second uplink signal belongs, wherein the first criterion comprises a priority relation between multiple signal types, and the multiple signal types comprise the signal type to which the first uplink signal belongs and the signal type to which the second uplink signal belongs.

8. The method according to claim 6 , wherein the priority of the first uplink signal and the priority of the second uplink signal is determined in accordance with a second criterion according to information carried by the first uplink signal and information carried by the second uplink signal, when both the first uplink signal and the second uplink signal belong to a first signal type, wherein the second criterion comprises a priority relation between multiple uplink signals under the first signal type.

9. The method according to claim 6 , wherein the priority of the first uplink signal and the priority of the second uplink signal is determined according to scheduling signaling corresponding to the first uplink signal and scheduling signaling corresponding to the second uplink signal.

10. The method according to claim 1 , wherein,

the first uplink signal and the second uplink signal are uplink signals which the terminal device is scheduled to transmit simultaneously within a same frequency domain resource set, wherein the frequency domain resource set comprises any one of the following:

a carrier set, a narrow bandwidth set, a subband set, and a Physical Resource Block (PRB) set.

11. A network device, comprising:

a processor, used for configuring a multiple access mode of uplink transmission for a terminal device; and

a transceiver, used for sending the multiple access mode of uplink transmission to the terminal device;

wherein the multiple access mode of uplink transmission is used for the terminal device to determine a multiplexing mode of a first uplink signal and a second uplink signal on a target time domain resource, wherein the first uplink signal and the second uplink signal are signals which the terminal device is scheduled to transmit on the target time domain resource simultaneously.

12. The network device according to claim 11 , wherein multiple access modes of the uplink transmission comprise Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) and Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM).

13. The network device according to claim 11 , wherein the first uplink signal and the second uplink signal are sent simultaneously on the target time domain resource, when the multiple access mode of the uplink transmission is CP-OFDM.

14. The network device according to claim 11 , wherein a third uplink signal from the first uplink signal and the second uplink signal is determined, when the multiple access mode of the uplink transmission is DFT-S-OFDM; and the third uplink signal is sent on the target time domain resource.

15. The network device according to claim 14 , wherein

the processor is used for: determining a priority of the first uplink signal and a priority of the second uplink signal;

the transceiver is used for sending the priority of the first uplink signal and the priority of the second uplink signal to the terminal device; and

the third uplink signal is determined from the first uplink signal and the second uplink signal according to the priority of the first uplink signal and the priority of the second uplink signal.

16. The network device according to claim 15 , wherein the processor is used for:

determining the priority of the first uplink signal and the priority of the second uplink signal in accordance with a first criterion according to a signal type to which the first uplink signal belongs and a signal type to which the second uplink signal belongs, wherein the first criterion comprises a priority relation between multiple signal types, and the multiple signal types comprise the signal type to which the first uplink signal belongs and the signal type to which the second uplink signal belongs.

17. The network device according to claim 15 , wherein the processor is used for:

determining the priority of the first uplink signal and the priority of the second uplink signal in accordance with a second criterion according to information carried by the first uplink signal and information carried by the second uplink signal, when both the first uplink signal and the second uplink signal belong to a first signal type, wherein the second criterion comprises a priority relation between multiple uplink signals under the first signal type.

18. The network device according to claim 15 , wherein the processor is used for:

determining the priority of the first uplink signal and the priority of the second uplink signal according to scheduling signaling corresponding to the first uplink signal and scheduling signaling corresponding to the second uplink signal.