Data retransmission method, device and terminal

1. A data retransmission method for a terminal, comprising:

acquiring a radio resource control (RRC) signaling, wherein the RRC signaling at least comprises a first configuration field and a second configuration field; the first configuration field is a configured grant (ConfiguredGrantConfig) field, and the second configuration field is a physical uplink shared channel configuration (PUSCH-config) field;

in the case that a base station dynamically schedules the terminal to perform a retransmission of a PUSCH, determining a parameter set for the retransmission according to a configuration parameter comprised in the first configuration field and a configuration parameter comprised in the second configuration field; and

performing the retransmission of the PUSCH according to the determined parameter set.

2. The data retransmission method according to claim 1 , wherein the determined parameter set for the retransmission comprises:

another parameter in the first configuration field other than a first parameter set in the first configuration field; and

a parameter that is in the second configuration field and corresponds to the first parameter set,

wherein the first parameter set is a radio resource control-Configured Uplink Grant (rrc-ConfiguredUplinkGrant).

3. The data retransmission method according to claim 1 , wherein the determined parameter set for the retransmission comprises:

a modulation and coding scheme table (mcs-Table) and a waveform setting (transformPrecoder) in the first configuration field; and

another parameter in the second configuration field other than the mcs-Table and the transformPrecoder in the second configuration field.

4. The data retransmission method according to claim 1 , wherein the determined parameter set for the retransmission comprises an mcs-Table;

when a waveform corresponding to a transformPrecoder in the first configuration field is same as a waveform corresponding to a transformPrecoder in the second configuration field, the mcs-Table is an mcs-Table in the first configuration field;

when the waveform corresponding to the transformPrecoder in the first configuration field is different from the waveform corresponding to the transformPrecoder in the second configuration field, the mcs-Table is an mcs-Table that is bound to the waveform corresponding to the transformPrecoder in the second configuration field and corresponds to the mcs-Table in the first configuration field.

5. The data retransmission method according to claim 1 , wherein the determined parameter set for the retransmission comprises an mcs-Table;

when a name of an mcs-Table in the first configuration field is a preset name or the terminal is configured with a new radio network temporary identifier (new-RNTI), the mcs-Table is an mcs-Table with the preset name bound to a waveform corresponding to a transformPrecoder in the second configuration field; otherwise, the mcs-Table is an mcs-Table in the second configuration field,

wherein the preset name is qam64LowSE.

6. The data retransmission method according to claim 4 , wherein the determined parameter set for the retransmission further comprises:

another parameter in the second configuration field other than the mcs-Table in the second configuration field.

7. The data retransmission method according to claim 1 , wherein the determined parameter set for the retransmission comprises a number of repetitions for the retransmission;

the number of repetitions for the retransmission is one of:

a larger one of a number K of repetitions in the first configuration field and a number of repetitions of the PUSCH in the second configuration field;

a smaller one of the number K of repetitions in the first configuration field and the number of repetitions of the PUSCH in the second configuration field;

the number K of repetitions in the first configuration field; and

the number of repetitions of the PUSCH in the second configuration field.

8. The data retransmission method according to claim 7 , wherein the determined parameter set for the retransmission further comprises:

another parameter in the second configuration field other than the number of repetitions of the PUSCH in the second configuration field.

9. The data retransmission method according to claim 1 , wherein the determined parameter set for the retransmission comprises:

a modulation and coding scheme table (mcs-Table), an mcs-TableTransformPrecoder, a waveform setting (transformPrecoder), an index of p0-PUSCH-AlphaSet (p0-PUSCH-Alpha), a powerControlLoopToUse and a path loss reference index (pathlossReferenceIndex) in the first configuration field; and

another parameter in the second configuration field other than an mcs-Table, an mcs-TableTransformPrecoder, a transformPrecoder, a p0-PUSCH-Alpha, a powerControlLoopToUse, and a pathlossReferencelndex in the second configuration field.

10. A terminal, comprising: a transceiver, a memory, a processor and a computer program stored in the memory and capable of being executed by the processor; wherein

the transceiver is configured to acquire a radio resource control (RRC) signaling, wherein the RRC signaling at least comprises a first configuration field and a second configuration field; the first configuration field is a configured grant (ConfiguredGrantConfig) field, and the second configuration field is a physical uplink shared channel configuration (PUSCH-config) field;

the processor is configured to read the program in the memory to:

in the case that a base station dynamically schedules the terminal to perform a retransmission of a PUSCH, determine a parameter set for the retransmission according to a configuration parameter comprised in the first configuration field and a configuration parameter comprised in the second configuration field; and

perform the retransmission of the PUSCH according to the determined parameter set.

11. The terminal according to claim 10 , wherein the determined parameter set for the retransmission comprises:

another parameter in the first configuration field other than a first parameter set in the first configuration field; and

a parameter that is in the second configuration field and corresponds to the first parameter set,

wherein the first parameter set is a radio resource control-Configured Uplink Grant (rrc-ConfiguredUplinkGrant).

12. The terminal according to claim 11 , wherein the determined parameter set for the retransmission comprises:

a modulation and coding scheme table (mcs-Table) and a waveform setting (transformPrecoder) in the first configuration field; and

another parameter in the second configuration field other than the mcs-Table and the transformPrecoder in the second configuration field.

13. The terminal according to claim 10 , wherein the determined parameter set for the retransmission comprises an mcs-Table;

when a waveform corresponding to a transformPrecoder in the first configuration field is same as a waveform corresponding to a transformPrecoder in the second configuration field, the mcs-Table is an mcs-Table in the first configuration field;

when the waveform corresponding to the transformPrecoder in the first configuration field is different from the waveform corresponding to the transformPrecoder in the second configuration field, the mcs-Table is an mcs-Table that is bound to the waveform corresponding to the transformPrecoder in the second configuration field and corresponds to the mcs-Table in the first configuration field.

14. The terminal according to claim 10 , wherein the determined parameter set for the retransmission comprises an mcs-Table;

when a name of an mcs-Table in the first configuration field is a preset name or the terminal is configured with a new radio network temporary identifier (new-RNTI), the mcs-Table is an mcs-Table with the preset name bound to a waveform corresponding to a transformPrecoder in the second configuration field; otherwise, the mcs-Table is an mcs-Table in the second configuration field,

wherein the preset name is qam64LowSE.

15. The terminal according to claim 13 , wherein the determined parameter set for the retransmission further comprises:

another parameter in the second configuration field other than the mcs-Table in the second configuration field.

16. The terminal according to claim 10 , wherein the determined parameter set for the retransmission comprises a number of repetitions for the retransmission;

the number of repetitions for the retransmission is one of:

a larger one of a number K of repetitions in the first configuration field and a number of repetitions of the PUSCH in the second configuration field;

a smaller one of the number K of repetitions in the first configuration field and the number of repetitions of the PUSCH in the second configuration field;

the number K of repetitions in the first configuration field; and

the number of repetitions of the PUSCH in the second configuration field.

17. The terminal according to claim 16 , wherein the determined parameter set for the retransmission further comprises:

another parameter in the second configuration field other than the number of repetitions of the PUSCH in the second configuration field.

18. The terminal according to claim 10 , wherein the determined parameter set for the retransmission comprises:

a modulation and coding scheme table (mcs-Table), an mcs-TableTransformPrecoder, a waveform setting (transformPrecoder), an index of p0-PUSCH-AlphaSet (p0-PUSCH-Alpha), a powerControlLoopToUse and a path loss reference index (pathlossReferenceIndex) in the first configuration field; and

another parameter in the second configuration field other than an mcs-Table, an mcs-TableTransformPrecoder, a transformPrecoder, a p0-PUSCH-Alpha, a powerControlLoopToUse, and a pathlossReferenceIndex in the second configuration field.

19. A computer readable storage medium storing therein a computer program, wherein the computer program is configured to be executed by a processor to implement steps of the data retransmission method according to claim 1 .

20. The data retransmission method according to claim 5 , wherein the determined parameter set for the retransmission further comprises:

another parameter in the second configuration field other than the mcs-Table in the second configuration field.