Apparatus and method of wireless communication
View Patent ↗An apparatus and a method of wireless communication are provided. The method by a user equipment (UE) includes being scheduled with a physical uplink shared channel (PUSCH) with one or more repetition transmissions and being indicated with transmission configurations for the PUSCH with one or more repetition transmissions. This can solve issues in the prior art, utilize multi-transmission/reception point (TRP) reception, improve uplink reliability, provide a good communication performance, and/or provide high reliability.
1. A wireless communication method by a user equipment (UE), comprising:
being scheduled with a physical uplink shared channel (PUSCH) with one or more repetition transmissions;
being indicated with transmission configurations for the PUSCH with one or more repetition transmissions, wherein if a PUSCH repetition is Type A, the same symbol allocation for PUSCH is applied across K consecutive slots, K being a number of repetitions indicated to the UE; and
being requested to apply a first uplink (UL) transmission configuration indicator (TCI) state and a second UL TCI state on PUSCH transmission occasions;
wherein when K>2, the first UL TCI state is applied to a first PUSCH transmission occasion and a second PUSCH transmission occasion, the second UL TCI state is applied to a third PUSCH transmission occasion and a fourth PUSCH transmission occasion, and the same UL TCI mapping pattern continues to remaining PUSCH transmission occasions.
2. The method of claim 1 , wherein the UE is requested to apply an indicated transmission configuration on one or more PUSCH repetition transmissions, and/or the PUSCH with one or more repetition transmissions comprise a PUSCH type A repetition and a PUSCH type B repetition.
3. The method of claim 2 , wherein for the PUSCH type A repetition, an indicated transmission configuration is applied on each PUSCH transmission, and/or for the PUSCH type B repetition, the indicated transmission configuration is applied on each nominal repetition or each actual repetition.
4. The method of claim 2 , wherein the UE is scheduled with the PUSCH with one or more repetition transmissions through downlink control information (DCI), and the DCI comprises a DCI format 0_1 or a DCI format 0_2.
5. The method of claim 4 , wherein the DCI indicates a first SRI DCI field and a second SRI DCI field, the first SRI DCI field indicates one or more SRS resources and one SRI-PUSCH-PowerControl parameter, and/or the second SRI DCI field indicates one or more SRS resources and one SRI-PUSCH-PowerControl parameter.
6. The method of claim 4 , wherein a mapping pattern of applying an indicated transmission configuration is performed on each PUSCH transmission occasion; and the mapping pattern is configured by radio resource control (RRC).
7. The method of claim 1 , wherein if the PUSCH repetition is Type B, the UE is indicated with a starting symbol, a length and a number of nominal repetitions (numberofrepetitions), the UE determines a slot location and a symbol location for each of the nominal repetitions; and the UE determines at least one invalid symbol and at least one actual PUSCH repetition.
8. The method of claim 7 , wherein when numberofrepetitions=2, the first UL TCI state is applied to a first nominal repetition and the second UL TCI state is applied to a second nominal repetition.
9. A user equipment (UE), comprising:
a memory;
a transceiver; and
a processor coupled to the memory and the transceiver;
wherein the processor is configured to be scheduled with a physical uplink shared channel (PUSCH) with one or more repetition transmissions;
the processor is configured to be indicated with transmission configurations for the PUSCH with one or more repetition transmissions, wherein if a PUSCH repetition is Type A, the same symbol allocation for PUSCH is applied across K consecutive slots, K being a number of repetitions indicated to the UE; and
the processor is configured to be requested to apply a first uplink (UL) transmission configuration indicator (TCI) state and a second UL TCI state on PUSCH transmission occasions;
wherein when K>2, the first UL TCI state is applied to a first PUSCH transmission occasion and a second PUSCH transmission occasion, the second UL TCI state is applied to a third PUSCH transmission occasion and a fourth PUSCH transmission occasion, and the same UL TCI mapping pattern continues to remaining PUSCH transmission occasions.
10. The UE of claim 9 , wherein the processor is requested to apply an indicated transmission configuration on one or more PUSCH repetition transmissions, and/or the PUSCH with one or more repetition transmissions comprise a PUSCH type A repetition and a PUSCH type B repetition.
11. The UE of claim 10 , wherein for the PUSCH type A repetition, an indicated transmission configuration is applied on each PUSCH transmission, and/or for the PUSCH type B repetition, the indicated transmission configuration is applied on each nominal repetition or each actual repetition.
12. The UE of claim 10 , wherein the processor is scheduled with the PUSCH with one or more repetition transmissions through downlink control information (DCI), and the DCI comprises a DCI format 0_1 or a DCI format 0_2.
13. The UE of claim 12 , wherein the DCI indicates a first SRI DCI field and a second SRI DCI field, the first SRI DCI field indicates one or more SRS resources and one SRI-PUSCH-PowerControl parameter, and/or the second SRI DCI field indicates one or more SRS resources and one SRI-PUSCH-PowerControl parameter; and/or wherein a mapping pattern of applying an indicated transmission configuration is performed on each PUSCH transmission occasion, and the mapping pattern is configured by radio resource control (RRC).
14. The UE of claim 9 , wherein if the PUSCH repetition is Type B, the UE is indicated with a starting symbol, a length and a number of nominal repetitions (numberofrepetitions), the processor is configured to determine a slot location and a symbol location for each of the nominal repetitions, and the processor is configured to determine at least one invalid symbol and at least one actual PUSCH repetition;
wherein when numberofrepetitions=2, the first UL TCI state is applied to a first nominal repetition and the second UL TCI state is applied to a second nominal repetition.
15. A base station, comprising:
a memory;
a transceiver; and
a processor coupled to the memory and the transceiver;
wherein the processor is configured to schedule, to a user equipment (UE), a physical uplink shared channel (PUSCH) with one or more repetition transmissions;
the processor is configured to indicate, to the UE, transmission configurations for the PUSCH with one or more repetition transmissions, wherein if a PUSCH repetition is Type A, the same symbol allocation for PUSCH is applied across K consecutive slots, K being a number of repetitions indicated to the UE; and
the processor is configured to request the UE to apply a first uplink (UL) transmission configuration indicator (TCI) state and a second UL TCI state on PUSCH transmission occasions;
wherein when K>2, the first UL TCI state is applied to a first PUSCH transmission occasion and a second PUSCH transmission occasion, the second UL TCI state is applied to a third PUSCH transmission occasion and a fourth PUSCH transmission occasion, and the same UL TCI mapping pattern continues to remaining PUSCH transmission occasions.
16. The base station of claim 15 , wherein the processor is configured to request the UE to apply an indicated transmission configuration on one or more PUSCH repetition transmissions, and/or the PUSCH with one or more repetition transmissions comprise a PUSCH type A repetition and a PUSCH type B repetition.
17. The base station of claim 16 , wherein for the PUSCH type A repetition, an indicated transmission configuration is applied on each PUSCH transmission, and/or for the PUSCH type B repetition, the indicated transmission configuration is applied on each nominal repetition or each actual repetition.
18. The base station of claim 16 , wherein the UE is scheduled with the PUSCH with one or more repetition transmissions through downlink control information (DCI), and the DCI comprises a DCI format 0_1 or a DCI format 0_2.
19. The base station of claim 18 , wherein the DCI indicates a first SRI DCI field and a second SRI DCI field, the first SRI DCI field indicates one or more SRS resources and one SRI-PUSCH-PowerControl parameter, and/or the second SRI DCI field indicates one or more SRS resources and one SRI-PUSCH-PowerControl parameter, and/or a mapping pattern of applying an indicated transmission configuration is performed on each PUSCH transmission occasion, and the mapping pattern is configured by radio resource control (RRC).
20. The base station of claim 15 , wherein if the PUSCH repetition is Type B, the UE is indicated with a starting symbol, a length and a number of nominal repetitions (numberofrepetitions), the UE determines a slot location and a symbol location for each of the nominal repetitions; and the UE determines at least one invalid symbol and at least one actual PUSCH repetition;
wherein when numberofrepetitions=2, the first UL TCI state is applied to a first nominal repetition and the second UL TCI state is applied to a second nominal repetition.