DMRS configuration method and user equipment

1. A demodulation reference signal (DMRS) configuration method, applied to a user equipment (UE), comprising:

obtaining a first physical uplink shared channel (PUSCH) by splitting a second PUSCH based on a downlink symbol;

determining a time domain position of a first DMRS for the first PUSCH according to a duration of the first PUSCH and DMRS configuration information;

wherein in response to an event that first PUSCHs obtained by splitting based on the downlink symbol meet a first condition, at least two PUSCHs obtained by splitting based on the downlink symbol share a DMRS; wherein the first condition comprises: an interval between PUSCHs obtained by splitting is less than N symbols, and N is a non-negative integer.

2. The DMRS configuration method of claim 1 , wherein the DMRS configuration information comprises at least one of a DMRS starting position and a DMRS additional position.

3. The DMRS configuration method of claim 1 , wherein determining the time domain position of the first DMRS according to the duration of the first PUSCH and the DMRS configuration information further comprises:

determining the time domain position of the first DMRS according to the duration of the first PUSCH, the DMRS configuration information and a second correspondence relation;

wherein the second correspondence relation is a correspondence relation among durations of PUSCHs, DMRS configuration information and time domain positions of DMRSs; and the second correspondence relation is predefined.

4. The DMRS configuration method of claim 3 , further comprising:

adopting a same second correspondence relation for repetition transmission of a PUSCH, wherein the PUSCH comprises the first PUSCH obtained by splitting and another second PUSCH which is not split.

5. The DMRS configuration method of claim 3 , wherein the second correspondence relation adopts a table in 3GPP TS 38.211 v15.4.0.

6. A user equipment (UE), comprising:

a first processor, configured to obtain a first physical uplink shared channel (PUSCH) by splitting a second PUSCH based on a downlink symbol, and determine a time domain position of a first demodulation reference signal (DMRS) for the first PUSCH according to a duration of the first PUSCH and DMRS configuration information;

wherein if first PUSCHs obtained by splitting based on the downlink symbol meet a first condition, at least two PUSCHs obtained by splitting based on the downlink symbol share a DMRS; wherein the first condition comprises: an interval between PUSCHs obtained by splitting is less than N symbols, and N is a non-negative integer.

7. The UE of claim 6 , wherein the DMRS configuration information comprises at least one of a DMRS starting position and a DMRS additional position.

8. The UE of claim 6 , wherein the first processor is configured to determine the time domain position of the first DMRS according to the duration of the first PUSCH, the DMRS configuration information and a second correspondence relation;

wherein the second correspondence relation is a correspondence relation among durations of PUSCHs, DMRS configuration information and time domain positions of DMRSs; and the second correspondence relation is predefined.

9. The UE of claim 8 , wherein the first processor is configured to adopt a same second correspondence relation for repetition transmission of a PUSCH, wherein the PUSCH comprises the first PUSCH obtained by splitting and another second PUSCH which is not split.

10. The UE of claim 8 , wherein the second correspondence relation adopts a table in 3GPP TS 38.211 v15.4.0.

11. A demodulation reference signal (DMRS) configuration method, applied to a network device, and comprising:

configuring DMRS configuration information;

receiving a first physical uplink shared channel (PUSCH) and a first DMRS corresponding to the first PUSCH;

wherein the first PUSCH is obtained by splitting a second PUSCH based on a downlink symbol, and a time domain position of the first DMRS for the first PUSCH is determined according to a duration of the obtained first PUSCH and the DMRS configuration information; and

in response to an event that first PUSCHs obtained by splitting based on the downlink symbol meet a first condition, at least two PUSCHs obtained by splitting based on the downlink symbol share a DMRS; wherein the first condition comprises: an interval between PUSCHs obtained by splitting is less than N symbols, and N is a non-negative integer.

12. The DMRS configuration method of claim 11 , wherein the DMRS configuration information comprises at least one of a DMRS starting position and a DMRS additional position.

13. The DMRS configuration method of claim 11 , wherein the time domain position of the first DMRS is determined according to the duration of the first PUSCH, the DMRS configuration information and a second correspondence relation;

wherein the second correspondence relation is a correspondence relation among durations of PUSCHs, DMRS configuration information and time domain positions of DMRSs; and the second correspondence relation is predefined.

14. The DMRS configuration method of claim 13 , wherein a same second correspondence relation is adopted for repetition transmission of a PUSCH, wherein the PUSCH comprises the first PUSCH obtained by splitting and another second PUSCH which is not split.