Method and apparatus for determining PDCCH monitoring occasion, storage medium, terminal, and base station

1. A method for determining Physical Downlink Control Channel (PDCCH) monitoring occasion, comprising:

acquiring an i-th PDCCH monitoring occasion corresponding to the synchronization signal block with the index of K based on a predefined association relationship, in response to detecting a synchronization signal block with an index of K, wherein the PDCCH monitoring occasion has the predefined association relationship with the synchronization signal block, wherein i represents an index of a candidate position of the PDCCH monitoring occasion, K represents an index of the synchronization signal block, or a beam index of the synchronization signal block, or an intra-group index of the synchronization signal block, or an intra-group index of a candidate position of the synchronization signal block;

wherein the method further comprises:

determining an intra-Quasi Co-Location (QCL)-subgroup index of the synchronization signal block with the index of K where the synchronization signal block with the index of K is located; and

determining a redundant version of a Physical Downlink Shared Channel (PDSCH) scheduled by the i-th PDCCH based on the intra-QCL-subgroup index.

2. The method according to claim 1 , wherein said determining an intra-QCL-subgroup index of the synchronization signal block with the index of K where the synchronization signal block with the index of K is located comprises:

acquiring an intra-QCL-subgroup index of the synchronization signal block with the index of K in a synchronization signal block subgroup where the synchronization signal block with the index of K is located and having QCL relationship, based on the predefined association relationship.

3. The method according to claim 2 , wherein the predefined association relationship is represented as i1=S×c1+K;

wherein, i1 represents an index of the candidate position of the synchronization signal block, S represents a maximum value of K, or the number of synchronization signal blocks in a synchronization signal block group, or the number or maximum number of synchronization signal blocks that are actually transmitted, and c1 represents an inter-group index of the candidate position of the synchronization signal block.

4. The method according to claim 3 , wherein, c1 is an integer, and 0≤c1<C, wherein the C represents a maximum value of c1, and is received from a base station or is predefined.

5. The method according to claim 2 , wherein the predefined association relationship is represented as K=P×q1+M;

wherein, P represents the number of synchronization signal blocks in the QCL subgroup of the synchronization signal block, q1 represents an inter-QCL-subgroup index of the synchronization signal block, and M represents an intra-QCL-subgroup index of the synchronization signal block.

6. The method according to claim 1 , wherein, the predefined association relationship is represented as i=S×x1+K;

wherein, x1 represents an inter-group index of the candidate position of the PDCCH monitoring occasion, and S represents a maximum value of K, or the number of synchronization signal blocks in a synchronization signal block group, or the number or maximum number of synchronization signal blocks that are actually transmitted.

7. The method according to claim 6 , wherein, S, being the number or maximum number of synchronization signal blocks that are actually transmitted, is received from a base station or is predefined.

8. The method according to claim 1 , wherein, the predefined association relationship is represented as i=S′×x1+K′;

wherein, x1 represents an inter-group index of the candidate position of the PDCCH monitoring occasion, K′ represents an index of the PDCCH monitoring occasion, or a beam index of the PDCCH monitoring occasion, or an intra-index of the candidate location of the PDCCH monitoring occasion, and S′ represents a maximum value of K′, or the number or maximum number of PDCCH monitoring occasions that are actually transmitted.

9. The method according to claim 8 , wherein an association relationship between K′ and K is received from a base station or is predefined.

10. The method according to claim 9 , wherein the association relationship between K′ and K comprises: K′ is an intra-QCL-subgroup index of the synchronization signal block with the index of K.

11. The method according to claim 8 , wherein S′ is received from a base station or is predefined, wherein S′ is the number or the maximum number of PDCCH monitoring occasions that are actually transmitted.

12. The method according to claim 6 , wherein the inter-group index x1 of the candidate position of the PDCCH monitoring occasion is an integer, and 0≤x1<X, wherein X represents a maximum value of x1, and is received from a base station or is predefined.

13. The method according to claim 12 , wherein the S×X PDCCH monitoring occasions constitute a PDCCH monitoring occasion window or a paging occasion.

14. The method according to claim 11 , wherein the S′×X PDCCH monitoring occasions constitute a PDCCH monitoring occasion window or a paging occasion.

15. The method according to claim 1 , wherein the synchronization signal block with the index of K and a PDCCH monitoring occasion with an index of a candidate position being equal to i have QCL relationship.

16. The method according to claim 1 , wherein the PDCCH monitoring occasion comprises: monitoring occasion of Type2-PDCCH or paging PDCCH or Type0-PDCCH or Type0A-PDCCH or Type1-PDCCH.

17. An apparatus for determining Physical Downlink Control Channel (PDCCH) monitoring occasion, comprising:

a first monitoring occasion determination circuitry, configured to: acquire an i-th PDCCH monitoring occasion corresponding to the synchronization signal block with the index of K based on a predefined association relationship, in response to detecting a synchronization signal block with an index of K, wherein the PDCCH monitoring occasion has the predefined association relationship with the synchronization signal block, wherein i represents an index of a candidate position of the PDCCH monitoring occasion, K represents an index of the synchronization signal block, or a beam index of the synchronization signal block, or an intra-group index of the synchronization signal block, or an intra-group index of a candidate position of the synchronization signal block; and

a second circuitry configured to: determine an intra-Quasi Co-Location (QCL)-subgroup index of the synchronization signal block with the index of K where the synchronization signal block with the index of K is located; and determine a redundant version of a Physical Downlink Shared Channel (PDSCH) scheduled by the i-th PDCCH based on the intra-QCL-subgroup index.

18. A non-transitory storage medium storing one or more programs, the one or more programs comprising computer instructions, which, when executed by a processor, cause the processor to:

acquire an i-th Physical Downlink Control Channel (PDCCH) monitoring occasion corresponding to the synchronization signal block with the index of K based on a predefined association relationship, in response to detecting a synchronization signal block with an index of K, wherein the PDCCH monitoring occasion has the predefined association relationship with the synchronization signal block, wherein i represents an index of a candidate position of the PDCCH monitoring occasion, K represents an index of the synchronization signal block, or a beam index of the synchronization signal block, or an intra-group index of the synchronization signal block, or an intra-group index of a candidate position of the synchronization signal block;

determine an intra-Quasi Co-Location (QCL)-subgroup index of the synchronization signal block with the index of K where the synchronization signal block with the index of K is located; and

determine a redundant version of a Physical Downlink Shared Channel (PDSCH) scheduled by the i-th PDCCH based on the intra-QCL-subgroup index.

19. The method according to claim 8 , wherein the inter-group index x1 of the candidate position of the PDCCH monitoring occasion is an integer, and 0≤x1<X, wherein X is received from a base station or is predefined.