METHOD AND DEVICE IN NODES USED FOR WIRELESS COMMUNICATION

1 . A first node for wireless communications, comprising:

a first receiver, receiving a second signaling; and

a first transmitter, transmitting a second bit set in a second time-frequency resource block;

wherein the second signaling indicates the second time-frequency resource block; the second signaling is used to determine a first time-frequency resource block, the first time-frequency resource block is reserved for a first bit set, and the first bit set comprises at least one bit block; the second signaling is a first-type signaling or a second-type signaling; whether the second bit set comprises the first bit set is at least related to whether the second signaling is the first-type signaling or the second-type signaling; when the second signaling is the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling, whether the second bit set comprises the first bit set is related to whether there exists a bit block in the first bit set comprising a Hybrid Automatic Repeat reQuest -ACK (HARQ-ACK) associated with the second-type signaling; the bit block comprises at least one bit.

2 . The first node according to claim 1 , wherein when the second signaling is the first-type signaling and there does not exist a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling and there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set does not comprise any bit block in the first bit set.

3 . The first node according to claim 1 , wherein when the second signaling is the first-type signaling and there does not exist a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling and there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises a bit block in the first bit set only comprising a HARQ-ACK associated with the first-type signaling.

4 . The first node according to claim 1 , wherein the first receiver receives a third signaling; receives a first signaling; wherein the first signaling indicates the first time-frequency resource block; the first signaling is the second-type signaling, and the third signaling is the first-type signaling; the first bit set comprises multiple bit blocks; two bit blocks in the first bit set respectively comprise a HARQ-ACK associated with the first signaling and a HARQ-ACK associated with a third signaling;

or, the second signaling indicates a first time offset, the first time offset and a slot to which the second signaling belongs in time domain are used together to determine a first slot, and the first slot is a slot to which the first time-frequency resource block belongs in time domain;

or, the first-type signaling is scrambled by a first identifier, the second-type is scrambled by a second identifier, and the first identifier is different from the second identifier.

5 . The first node according to claim 1 , wherein both the first-type signaling and the second-type signaling belong to a first frequency band in frequency domain, only the first-type signaling in the first-type signaling and the second-type signaling is limited in a first frequency-domain resource set in the first frequency band in frequency domain, and the first frequency-domain resource set belongs to the first frequency band.

6 . A second node for wireless communications, comprising:

a second transmitter, transmitting a second signaling; and

a second receiver, receiving a second bit set in a second time-frequency resource block;

wherein the second signaling indicates the second time-frequency resource block; the second signaling is used to determine a first time-frequency resource block, the first time-frequency resource block is reserved for a first bit set, and the first bit set comprises at least one bit block; the second signaling is a first-type signaling or a second-type signaling; whether the second bit set comprises the first bit set is at least related to whether the second signaling is the first-type signaling or the second-type signaling; when the second signaling is the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling, whether the second bit set comprises the first bit set is related to whether there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling; the bit block comprises at least one bit.

7 . The second node according to claim 1 , wherein when the second signaling is the first-type signaling and there does not exist a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling and there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set does not comprise any bit block in the first bit set.

8 . The second node according to claim 1 , wherein when the second signaling is the first-type signaling and there does not exist a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling and there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises a bit block in the first bit set only comprising a HARQ-ACK associated with the first-type signaling.

9 . The second node according to claim 1 , wherein the second transmitter transmits a third signaling; transmits a first signaling; wherein the first signaling indicates the first time-frequency resource block; the first signaling is the second-type signaling, and the third signaling is the first-type signaling; the first bit set comprises multiple bit blocks; two bit blocks in the first bit set respectively comprise a HARQ-ACK associated with the first signaling and a HARQ-ACK associated with a third signaling;

or, the second signaling indicates a first time offset, the first time offset and a slot to which the second signaling belongs in time domain are used together to determine a first slot, and the first slot is a slot to which the first time-frequency resource block belongs in time domain;

or, the first-type signaling is scrambled by a first identifier, the second-type is scrambled by a second identifier, and the first identifier is different from the second identifier.

10 . The second node according to claim 1 , wherein both the first-type signaling and the second-type signaling belong to a first frequency band in frequency domain, only the first-type signaling in the first-type signaling and the second-type signaling is limited in a first frequency-domain resource set in the first frequency band in frequency domain, and the first frequency-domain resource set belongs to the first frequency band.

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

receiving a second signaling; and

transmitting a second bit set in a second time-frequency resource block;

wherein the second signaling indicates the second time-frequency resource block; the second signaling is used to determine a first time-frequency resource block, the first time-frequency resource block is reserved for a first bit set, and the first bit set comprises at least one bit block; the second signaling is a first-type signaling or a second-type signaling; whether the second bit set comprises the first bit set is at least related to whether the second signaling is the first-type signaling or the second-type signaling; when the second signaling is the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling, whether the second bit set comprises the first bit set is related to whether there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling; the bit block comprises at least one bit.

12 . The method according to claim 11 , wherein when the second signaling is the first-type signaling and there does not exist a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling and there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set does not comprise any bit block in the first bit set.

13 . The method according to claim 11 , wherein when the second signaling is the first-type signaling and there does not exist a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling and there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises a bit block in the first bit set only comprising a HARQ-ACK associated with the first-type signaling.

14 . The method according to claim 11 , comprising:

receiving a third signaling; and receiving a first signaling; wherein the first signaling indicates the first time-frequency resource block; the first signaling is the second-type signaling, and the third signaling is the first-type signaling; the first bit set comprises multiple bit blocks; two bit blocks in the first bit set respectively comprise a HARQ-ACK associated with the first signaling and a HARQ-ACK associated with a third signaling;

or, the second signaling indicates a first time offset, the first time offset and a slot to which the second signaling belongs in time domain are used together to determine a first slot, and the first slot is a slot to which the first time-frequency resource block belongs in time domain;

or, the first-type signaling is scrambled by a first identifier, the second-type is scrambled by a second identifier, and the first identifier is different from the second identifier.

15 . The method according to claim 11 , wherein both the first-type signaling and the second-type signaling belong to a first frequency band in frequency domain, only the first-type signaling in the first-type signaling and the second-type signaling is limited in a first frequency-domain resource set in the first frequency band in frequency domain, and the first frequency-domain resource set belongs to the first frequency band.

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

transmitting a second signaling; and

receiving a second bit set in a second time-frequency resource block;

wherein the second signaling indicates the second time-frequency resource block; the second signaling is used to determine a first time-frequency resource block, the first time-frequency resource block is reserved for a first bit set, and the first bit set comprises at least one bit block; the second signaling is a first-type signaling or a second-type signaling; whether the second bit set comprises the first bit set is at least related to whether the second signaling is the first-type signaling or the second-type signaling; when the second signaling is the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling, whether the second bit set comprises the first bit set is related to whether there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling; the bit block comprises at least one bit.

17 . The method according to claim 16 , wherein when the second signaling is the first-type signaling and there does not exist a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling and there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set does not comprise any bit block in the first bit set.

18 . The method according to claim 16 , wherein when the second signaling is the first-type signaling and there does not exist a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises the first bit set; when the second signaling is the first-type signaling and there exists a bit block in the first bit set comprising a HARQ-ACK associated with the second-type signaling, the second bit set comprises a bit block in the first bit set only comprising a HARQ-ACK associated with the first-type signaling.

19 . The method according to claim 16 , comprising:

transmitting a third signaling; transmitting a first signaling; wherein the first signaling indicates the first time-frequency resource block; the first signaling is the second-type signaling, and the third signaling is the first-type signaling; the first bit set comprises multiple bit blocks; two bit blocks in the first bit set respectively comprise a HARQ-ACK associated with the first signaling and a HARQ-ACK associated with a third signaling;

or, the second signaling indicates a first time offset, the first time offset and a slot to which the second signaling belongs in time domain are used together to determine a first slot, and the first slot is a slot to which the first time-frequency resource block belongs in time domain;

or, the first-type signaling is scrambled by a first identifier, the second-type is scrambled by a second identifier, and the first identifier is different from the second identifier.

20 . The method according to claim 16 , wherein both the first-type signaling and the second-type signaling belong to a first frequency band in frequency domain, only the first-type signaling in the first-type signaling and the second-type signaling is limited in a first frequency-domain resource set in the first frequency band in frequency domain, and the first frequency-domain resource set belongs to the first frequency band.