Method and device in a node used for wireless communication

1. A first node for wireless communications, comprising:

a first receiver, monitoring first-type signalings and second-type signalings in a first time-frequency resource pool, and receiving a first signaling; and

a first transmitter, transmitting a first information block;

wherein the first information block comprises a HARQ-ACK associated with the first signaling; each of the first-type signalings and the second-type signalings comprises a first field; and each of the first-type signalings and the second-type signalings comprises a second field, the second field comprised by each of the first-type signalings indicates a first priority, and the second field comprised by each of the second-type signalings indicates a second priority, the first priority being different from the second priority; when the first signaling is one of the first-type signalings, a value of the first field comprised in the first signaling is related to both a number of the first-type signalings and a number of the second-type signalings transmitted in the first time-frequency resource pool; when the first signaling is one of the second-type signalings, a value of the first field comprised in the first signaling is related to the number of the second-type signalings transmitted in the first time-frequency resource pool, and unrelated to the number of the first-type signalings transmitted in the first time-frequency resource pool.

2. The first node according to claim 1 , wherein the first receiver also receives a second signaling in the first time-frequency resource pool; wherein the first signaling is one of the first-type signalings, and the second signaling is one of the second-type signalings; a first sub-information-block comprises the HARQ-ACK associated with the first signaling, and the first sub-information-block belongs to the first information block, while a second sub-information-block comprises a HARQ-ACK associated with the second signaling; the first signaling indicates a first time-frequency resource block, while the second signaling indicates a second time-frequency resource block, the first time-frequency resource block being reserved for the first sub-information-block, and the second time-frequency resource block being reserved for the second sub-information-block; whether a time unit to which the first time-frequency resource block belongs in time domain is overlapped with a time unit to which the second time-frequency resource block belongs in time domain is used for determining whether the first information block comprises the second sub-information-block, or, whether the first time-frequency resource block is overlapped with the second time-frequency resource block in time domain is used for determining whether the first information block comprises the second sub-information-block.

3. The first node according to claim 2 , wherein the first receiver also receives L1-1 first-type signaling(s) in a first signaling set other than the first signaling and L2-1 second-type signaling(s) in a second signaling set other than the second signaling in the first time-frequency resource pool;

wherein the first signaling set is composed of L1 first-type signalings detected in the first time-frequency resource pool, and the first signaling is a last first-type signaling in the first signaling set, L1 being a positive integer greater than 1; the first sub-information-block comprises L1 information sub-blocks, and the L1 first-type signalings respectively correspond to the L1 information sub-blocks, the L1 information sub-blocks respectively comprising HARQ-ACKs associated with corresponding first-type signalings; the second signaling set is composed of L2 second-type signalings detected in the first time-frequency resource pool, and the second signaling is a last second-type signaling in the second signaling set, L2 being a positive integer greater than 1; the second sub-information-block comprises L2 information sub-blocks, and the L2 second-type signalings respectively correspond to the L2 information sub-blocks, the L2 information sub-blocks respectively comprising HARQ-ACKs associated with corresponding second-type signalings.

4. The first node according to claim 2 , wherein the first information block is transmitted in the first time-frequency resource block.

5. The first node according to claim 1 , wherein when the first signaling is one of the first-type signalings, the first signaling comprises a third field; a value of the third field comprised in the first signaling is related to a number of the first-type signalings transmitted in the first time-frequency resource pool, and unrelated to a number of the second-type signalings transmitted in the first time-frequency resource pool.

6. A second node for wireless communications, comprising:

a second transmitter, transmitting a first signaling in a first time-frequency resource pool; and

a second receiver, receiving a first information block;

wherein the first information block comprises a HARQ-ACK associated with the first signaling; the first time-frequency resource pool is reserved for first-type signalings and second-type signalings; each of the first-type signalings and the second-type signalings comprises a first field; and each of the first-type signalings and the second-type signalings comprises a second field, the second field comprised by each of the first-type signalings indicates a first priority, and the second field comprised by each of the second-type signalings indicates a second priority, the first priority being different from the second priority; when the first signaling is one of the first-type signalings, a value of the first field comprised in the first signaling is related to both a number of the first-type signalings and a number of the second-type signalings transmitted in the first time-frequency resource pool; when the first signaling is one of the second-type signalings, a value of the first field comprised in the first signaling is related to the number of the second-type signalings transmitted in the first time-frequency resource pool, and unrelated to the number of the first-type signalings transmitted in the first time-frequency resource pool.

7. The second node according to claim 6 , wherein the second transmitter also transmits a second signaling in the first time-frequency resource pool; wherein the first signaling is one of the first-type signalings, and the second signaling is one of the second-type signalings; a first sub-information-block comprises the HARQ-ACK associated with the first signaling, and the first sub-information-block belongs to the first information block, while a second sub-information-block comprises a HARQ-ACK associated with the second signaling; the first signaling indicates a first time-frequency resource block, while the second signaling indicates a second time-frequency resource block, the first time-frequency resource block being reserved for the first sub-information-block, and the second time-frequency resource block being reserved for the second sub-information-block; whether a time unit to which the first time-frequency resource block belongs in time domain is overlapped with a time unit to which the second time-frequency resource block belongs in time domain is used for determining whether the first information block comprises the second sub-information-block, or, whether the first time-frequency resource block is overlapped with the second time-frequency resource block in time domain is used for determining whether the first information block comprises the second sub-information-block.

8. The second node according to claim 7 , wherein the second transmitter also transmits L1-1 first-type signaling(s) in a first signaling set other than the first signaling and L2-1 second-type signaling(s) in a second signaling set other than the second signaling in the first time-frequency resource pool; wherein the first signaling set is composed of L1 first-type signalings detected in the first time-frequency resource pool, and the first signaling is a last first-type signaling in the first signaling set, L1 being a positive integer greater than 1; the first sub-information-block comprises L1 information sub-blocks, and the L1 first-type signalings respectively correspond to the L1 information sub-blocks, the L1 information sub-blocks respectively comprising HARQ-ACKs associated with corresponding first-type signalings; the second signaling set is composed of L2 second-type signalings detected in the first time-frequency resource pool, and the second signaling is a last second-type signaling in the second signaling set, L2 being a positive integer greater than 1; the second sub-information-block comprises L2 information sub-blocks, and the L2 second-type signalings respectively correspond to the L2 information sub-blocks, the L2 information sub-blocks respectively comprising HARQ-ACKs associated with corresponding second-type signalings.

9. The second node according to claim 7 , wherein the first information block is transmitted in the first time-frequency resource block.

10. The second node according to claim 6 , wherein when the first signaling is one of the first-type signalings, the first signaling comprises a third field; a value of the third field comprised in the first signaling is related to a number of the first-type signalings transmitted in the first time-frequency resource pool, and unrelated to a number of the second-type signalings transmitted in the first time-frequency resource pool.

11. A method in a first node for wireless communications, comprising:

monitoring first-type signalings and second-type signalings in a first time-frequency resource pool, and receiving a first signaling; and

transmitting a first information block;

wherein the first information block comprises a HARQ-ACK associated with the first signaling; each of the first-type signalings and the second-type signalings comprises a first field; and each of the first-type signalings and the second-type signalings comprises a second field, the second field comprised by each of the first-type signalings indicates a first priority, and the second field comprised by each of the second-type signalings indicates a second priority, the first priority being different from the second priority; when the first signaling is one of the first-type signalings, a value of the first field comprised in the first signaling is related to both a number of the first-type signalings and a number of the second-type signalings transmitted in the first time-frequency resource pool; when the first signaling is one of the second-type signalings, a value of the first field comprised in the first signaling is related to the number of the second-type signalings transmitted in the first time-frequency resource pool, and unrelated to the number of the first-type signalings transmitted in the first time-frequency resource pool.

12. The method according to claim 11 , comprising:

receiving a second signaling in the first time-frequency resource pool;

wherein the first signaling is one of the first-type signalings, and the second signaling is one of the second-type signalings; a first sub-information-block comprises the HARQ-ACK associated with the first signaling, and the first sub-information-block belongs to the first information block, while a second sub-information-block comprises a HARQ-ACK associated with the second signaling; the first signaling indicates a first time-frequency resource block, while the second signaling indicates a second time-frequency resource block, the first time-frequency resource block being reserved for the first sub-information-block, and the second time-frequency resource block being reserved for the second sub-information-block; whether a time unit to which the first time-frequency resource block belongs in time domain is overlapped with a time unit to which the second time-frequency resource block belongs in time domain is used for determining whether the first information block comprises the second sub-information-block, or, whether the first time-frequency resource block is overlapped with the second time-frequency resource block in time domain is used for determining whether the first information block comprises the second sub-information-block.

13. The method according to claim 12 , comprising:

receiving L1-1 first-type signaling(s) in a first signaling set other than the first signaling and L2-1 second-type signaling(s) in a second signaling set other than the second signaling in the first time-frequency resource pool;

wherein the first signaling set is composed of L1 first-type signalings detected in the first time-frequency resource pool, and the first signaling is a last first-type signaling in the first signaling set, L1 being a positive integer greater than 1; the first sub-information-block comprises L1 information sub-blocks, and the L1 first-type signalings respectively correspond to the L1 information sub-blocks, the L1 information sub-blocks respectively comprising HARQ-ACKs associated with corresponding first-type signalings; the second signaling set is composed of L2 second-type signalings detected in the first time-frequency resource pool, and the second signaling is a last second-type signaling in the second signaling set, L2 being a positive integer greater than 1; the second sub-information-block comprises L2 information sub-blocks, and the L2 second-type signalings respectively correspond to the L2 information sub-blocks, the L2 information sub-blocks respectively comprising HARQ-ACKs associated with corresponding second-type signalings.

14. The method according to claim 12 , wherein the first information block is transmitted in the first time-frequency resource block.

15. The method according to claim 11 , wherein when the first signaling is one of the first-type signalings, the first signaling comprises a third field; a value of the third field comprised in the first signaling is related to a number of the first-type signalings transmitted in the first time-frequency resource pool, and unrelated to a number of the second-type signalings transmitted in the first time-frequency resource pool.

16. A method in a second node for wireless communications, comprising:

transmitting a first signaling in a first time-frequency resource pool; and

receiving a first information block;

wherein the first information block comprises a HARQ-ACK associated with the first signaling; the first time-frequency resource pool is reserved for first-type signalings and second-type signalings; each of the first-type signalings and the second-type signalings comprises a first field; and each of the first-type signalings and the second-type signalings comprises a second field, the second field comprised by each of the first-type signalings indicates a first priority, and the second field comprised by each of the second-type signalings indicates a second priority, the first priority being different from the second priority; when the first signaling is one of the first-type signalings, a value of the first field comprised in the first signaling is related to both a number of the first-type signalings and a number of the second-type signalings transmitted in the first time-frequency resource pool; when the first signaling is one of the second-type signalings, a value of the first field comprised in the first signaling is related to the number of the second-type signalings transmitted in the first time-frequency resource pool, and unrelated to the number of the first-type signalings transmitted in the first time-frequency resource pool.

17. The method according to claim 16 , comprising:

transmitting a second signaling in the first time-frequency resource pool;

wherein the first signaling is one of the first-type signalings, and the second signaling is one of the second-type signalings; a first sub-information-block comprises the HARQ-ACK associated with the first signaling, and the first sub-information-block belongs to the first information block, while a second sub-information-block comprises a HARQ-ACK associated with the second signaling; the first signaling indicates a first time-frequency resource block, while the second signaling indicates a second time-frequency resource block, the first time-frequency resource block being reserved for the first sub-information-block, and the second time-frequency resource block being reserved for the second sub-information-block; whether a time unit to which the first time-frequency resource block belongs in time domain is overlapped with a time unit to which the second time-frequency resource block belongs in time domain is used for determining whether the first information block comprises the second sub-information-block, or, whether the first time-frequency resource block is overlapped with the second time-frequency resource block in time domain is used for determining whether the first information block comprises the second sub-information-block.

18. The method according to claim 17 , comprising:

transmitting L1-1 first-type signaling(s) in a first signaling set other than the first signaling and L2-1 second-type signaling(s) in a second signaling set other than the second signaling in the first time-frequency resource pool;

wherein the first signaling set is composed of L1 first-type signalings detected in the first time-frequency resource pool, and the first signaling is a last first-type signaling in the first signaling set, L1 being a positive integer greater than 1; the first sub-information-block comprises L1 information sub-blocks, and the L1 first-type signalings respectively correspond to the L1 information sub-blocks, the L1 information sub-blocks respectively comprising HARQ-ACKs associated with corresponding first-type signalings; the second signaling set is composed of L2 second-type signalings detected in the first time-frequency resource pool, and the second signaling is a last second-type signaling in the second signaling set, L2 being a positive integer greater than 1; the second sub-information-block comprises L2 information sub-blocks, and the L2 second-type signalings respectively correspond to the L2 information sub-blocks, the L2 information sub-blocks respectively comprising HARQ-ACKs associated with corresponding second-type signalings.

19. The method according to claim 17 , wherein the first information block is transmitted in the first time-frequency resource block.

20. The method according to claim 16 , wherein when the first signaling is one of the first-type signalings, the first signaling comprises a third field; a value of the third field comprised in the first signaling is related to a number of the first-type signalings transmitted in the first time-frequency resource pool, and unrelated to a number of the second-type signalings transmitted in the first time-frequency resource pool.