Information generation method, device, and storage medium
Provided are an information generation method, a device, and a storage medium. The method includes: receiving a DCI sent by a second communication node, where the DCI is used for scheduling at least one PDSCH; and generating a corresponding feedback codebook according to a C-DAI value and a T-DAI value which are contained in a DAI indicator field in the DCI.
1. An information generation method, the method being applied to a first communication node and comprising:
receiving a downlink control information (DCI) sent by a second communication node, wherein the DCI is used for scheduling at least one physical downlink shared channel (PDSCH); and
generating a corresponding feedback codebook according to a counter downlink assignment index (C-DAI) value and a total downlink assignment index (T-DAI) value which are contained in a downlink assignment index (DAI) indicator field in the DCI;
wherein in a case where the DCI is a first-type DCI and at least two PDSCHs scheduled by the first-type DCI share the C-DAI value and the T-DAI value, the C-DAI value in the first-type DCI is determined according to one PDSCH among PDSCHs scheduled by the first-type DCI.
2. The method according to claim 1 , wherein the DCI comprises the first-type DCI and a second-type DCI, and counting is performed independently for the first-type DCI and the second-type DCI separately, wherein the second-type DCI is used for scheduling one PDSCH.
3. The method according to claim 1 , wherein one group of C-DAI values and T-DAI values comprises the C-DAI value and the T-DAI value, and in a case where the DCI is the first-type DCI and the one group of C-DAI values and T-DAI values are contained in the first-type DCI, a carrier where one PDSCH among PDSCHs scheduled by the first-type DCI is located is used as a reference carrier for a C-DAI value, and one DAI count value is accumulated for each first-type DCI.
4. The method according to claim 1 , wherein one group of C-DAI values and T-DAI values comprises the C-DAI value and the T-DAI value, and in the case where the DCI is the first-type DCI and the one group of C-DAI values and T-DAI values are contained in the first-type DCI, feedback bits of all PDSCHs scheduled by the Page 3 of 10
first-type DCI occupy consecutive bits in the feedback codebook, and all the PDSCHs scheduled by the first-type DCI are sorted according to a preset order and are in one-to-one correspondence with the consecutive bits from front to back.
5. The method according to claim 4 , wherein the preset order comprises one of the following:
the PDSCHs are sorted from low to high according to indexes of carriers where the PDSCHs are located, and PDSCHs with a same carrier index are sorted from front to back according to time domain positions where the PDSCHS are located; or
the PDSCHs are sorted from front to back according to time domain positions, and PDSCHs having a same time domain position are sorted from low to high according to indexes of carriers where the PDSCHs are located;
wherein the time domain positions of the PDSCHs are starting positions of the PDSCHs in a time domain or ending positions of the PDSCHs in a time domain.
6. The method according to claim 1 , wherein in a case where the DCI is the first-type DCI and one PDSCH among PDSCHs scheduled by the first-type DCI is located in a carrier with a lowest carrier index or a highest carrier index among carriers where PDSCHs scheduled by all DCIs in a current monitoring occasion (MO) are located, feedback information about the PDSCH scheduled by the first-type DCI is fixed at a first bit or a last bit of feedback information of the current MO.
7. The method according to claim 1 , wherein one group of C-DAI values and T-DAI values comprises the C-DAI value and the T-DAI value, and in a case where the DCI comprises the first-type DCI and at least two groups of C-DAI values and T-DAI values are contained in the first-type DCI, one PDSCH among all PDSCHs scheduled by the first-type DCI and a PDSCH scheduled by a second-type DCI are counted together and contained in a same sub-codebook, wherein the second DCI is used for scheduling one PDSCH;
all the PDSCHs scheduled by the first-type DCI except the one PDSCH counted together with the PDSCH scheduled by the second-type DCI are counted together through an i-th PDSCH scheduled by the first-type DCI to generate an i-th sub-codebook, wherein 1≤i≤N; and
the corresponding feedback codebook is generated using the same sub-codebook and N sub-codebooks in a manner of bit concatenation.
8. The method according to claim 1 , wherein each DAI count value in the first-type DCI corresponds to X bits in the feedback codebook, wherein X is related to a number of PDSCHs scheduled by the first-type DCI.
9. The method according to claim 8 , wherein in a case where all first-type DCIs schedule an equal number of PDSCHs, X is equal to the number of PDSCHs scheduled by the first-type DCI; or
in a case where each first-type DCI schedules an unequal number of PDSCHs, X is equal to a largest number of PDSCHs scheduled by the first-type DCI among numbers of PDSCHs scheduled by all first-type DCIs.
10. The method according to claim 1 , wherein in a case where the DCI is the first-type DCI and all PDSCHs scheduled by the first-type DCI correspond to one feedback bit, feedback information about all PDSCHs scheduled by each first-type DCI is bundled in a preset bundling rule to obtain the one feedback bit.
11. The method according to claim 1 , wherein the DCI is the first-type DCI, and the method further comprises determining a feedback timing reference position which corresponds to the feedback codebook.
12. The method according to claim 11 , wherein determining the feedback timing reference position which corresponds to the feedback codebook comprises one of the following manners:
determining the feedback timing reference position using a PDSCH having a latest ending position among all PDSCHs scheduled by the first-type DCI as a reference;
determining the feedback timing reference position using a PDSCH having an earliest ending position among all PDSCHs scheduled by the first-type DCI as a reference;
determining the feedback timing reference position using a PDSCH with a lowest carrier index among all PDSCHs scheduled by the first-type DCI as a reference; or
determining the feedback timing reference position using a PDSCH with a highest carrier index among all PDSCHs scheduled by the first-type DCI as a reference.
13. The method according to claim 11 , wherein the feedback timing reference position refers to a slot position corresponding to K 1 being equal to 0, wherein K 1 denotes a number of offset slots between a slot where the PDSCH is located and a slot where feedback information corresponding to the PDSCH is located.
14. An information generation method, the method being applied to a second communication node and comprising:
sending a downlink control information (DCI) to a first communication node, wherein the DCI is used for scheduling at least one physical downlink shared channel (PDSCH); and the DCI is further used for causing the first communication node to generate a corresponding feedback codebook according to a counter downlink assignment index (C-DAI) value and a total downlink assignment index (T-DAI) value which are contained in a downlink assignment index (DAI) indicator field in the DCI;
wherein in a case where the DCI is a first-type DCI and at least two PDSCHs scheduled by the first-type DCI share the C-DAI value and the T-DAI value, the C-DAI value in the first-type DCI is determined according to one PDSCH among PDSCHs scheduled by the first-type DCI.
15. A device, comprising a memory and at least one processor;
wherein the memory is configured to store at least one program; and
when executing the at least one program, the at least one processor implements the following steps:
receiving a downlink control information (DCI) sent by a second communication node, wherein the DCI is used for scheduling at least one physical downlink shared channel (PDSCH); and
generating a corresponding feedback codebook according to a counter downlink assignment index (C-DAI) value and a total downlink assignment index (T-DAI) value which are contained in a downlink assignment index (DAI) indicator field in the DCI;
wherein in a case where the DCI is a first-type DCI and at least two PDSCHs scheduled by the first-type DCI share the C-DAI value and the T-DAI value, the C-DAI value in the first-type DCI is determined according to one PDSCH among PDSCHs scheduled by the first-type DCI.
16. A non-transitory storage medium for storing a computer program which, when executed by a processor, implements the method according to claim 1 .
17. A device, comprising a memory and at least one processor;
wherein the memory is configured to store at least one program; and
when executing the at least one program, the at least one processor implements the method of claim 14 .
18. The method according to claim 1 , wherein the one PDSCH among PDSCHs scheduled by the first-type DCI is in a carrier with a highest carrier index or a lowest carrier index among carriers where all PDSCHs scheduled by the first-type DCI are located.
19. The method according to claim 14 , wherein the one PDSCH among PDSCHs scheduled by the first-type DCI is in a carrier with a highest carrier index or a lowest carrier index among carriers where all PDSCHs scheduled by the first-type DCI are located.