METHOD AND DEVICE IN NODES USED FOR WIRELESS COMMUNICATION

1 . A first node for wireless communications, comprising:

a first receiver, receiving a first information set, the first information set being used to indicate a first parameter set and a second parameter set; and receiving a first signaling; and

a first transmitter, transmitting a first signal;

wherein transmit power of the first signal is a first power value; the first parameter set and the second parameter set are both associated with a first reference signal resource set, and the first signaling indicates at least one reference signal resource in the first reference signal resource set; a target parameter set is one of the first parameter set and the second parameter set, and at least one candidate parameter comprised in the target parameter set is used to determine the first power value; whether the first signaling is used to indicate at least one reference signal resource in a second reference signal resource set is used to determine the target parameter set from the first parameter set and the second parameter set; the second reference signal resource set is different from the first reference signal resource set.

2 . The first node according to claim 1 , wherein when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the target parameter set is the second parameter set; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, the target parameter set is the first parameter set.

3 . The first node according to claim 1 , wherein when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, and the first reference signal resource set and second reference signal resource set are respectively used to determine Spatial Tx parameters of the first sub-signal and second sub-signal; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, only the first reference signal resource set in the first reference signal resource set and the second reference signal resource set is used to determine Spatial Tx parameters of the first signal.

4 . The first node according to claim 1 , wherein the first parameter set comprises a first value, and the second parameter set comprises a second value and a third value; the first value and the second value are both for the first reference signal resource set, and the first value and the second value are different; when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, and the second value and the third value are respectively used to determine a transmit power value of the first sub-signal and a transmit power value the second sub-signal; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, the first value is used to determine a transmit power value of the first signal.

5 . The first node according to claim 1 , wherein the first parameter set comprises a first coefficient, and the second parameter set comprises a second coefficient and a third coefficient; when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, a product of the second coefficient and a first pathloss is used to determine a transmit power value of the first sub-signal, and a product of the third coefficient and a second pathloss is used to determine a transmit power value of the second sub-signal; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, a product of the first coefficient and a first pathloss is used to determine a transmit power value of the first signal; reference signal resources indicated by the first signaling in the first reference signal resource set are used to determine a third reference signal resource, and reference signal resources indicated by the first signaling in the second reference signal resource set are used to determine a fourth reference signal resource; a radio signal received in the third reference signal resource is used to determine the first pathloss, and a radio signal received in the fourth reference signal resource is used to determine the second pathloss.

6 . The first node according to claim 1 , wherein the first signaling comprises a first index group; when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, and the first index group is used to determine a pre-coding matrix indication respectively adopted by the first sub-signal and the second sub-signal; when the first signaling is not used to determine the second reference signal resource, the first index group is used to determine a precoding matrix indication adopted by the first signal.

7 . The first node according to claim 1 , wherein the first signaling comprises a first index group, the first index group is used to determine a first reference signal resource subset from the first reference signal resource set, or the first index group is used to simultaneously determine a first reference signal resource subset from the first reference signal resource set and a second reference signal resource subset from the second reference signal resource set.

8 . A second node for wireless communications, comprising:

a second transmitter, transmitting a first information set, the first information set being used to indicate a first parameter set and a second parameter set; and transmitting a first signaling; and

a second receiver, receiving a first signal;

wherein transmit power of the first signal is a first power value; the first parameter set and the second parameter set are both associated with a first reference signal resource set, and the first signaling indicates at least one reference signal resource in the first reference signal resource set; a target parameter set is one of the first parameter set and the second parameter set, and at least one candidate parameter comprised in the target parameter set is used to determine the first power value; whether the first signaling is used to indicate at least one reference signal resource in a second reference signal resource set is used to determine the target parameter set from the first parameter set and the second parameter set; the second reference signal resource set is different from the first reference signal resource set.

9 . The second node according to claim 8 , wherein when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the target parameter set is the second parameter set; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, the target parameter set is the first parameter set.

10 . The second node according to claim 8 , wherein when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, and the first reference signal resource set and second reference signal resource set are respectively used to determine Spatial Tx parameters of the first sub-signal and second sub-signal; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, only the first reference signal resource set in the first reference signal resource set and the second reference signal resource set is used to determine Spatial Tx parameters of the first signal.

11 . The second node according to claim 8 , wherein the first parameter set comprises a first value, and the second parameter set comprises a second value and a third value; the first value and the second value are both for the first reference signal resource set, and the first value and the second value are different; when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, and the second value and the third value are respectively used to determine a transmit power value of the first sub-signal and a transmit power value the second sub-signal; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, the first value is used to determine a transmit power value of the first signal.

12 . The second node according to claim 8 , wherein the first parameter set comprises a first coefficient, and the second parameter set comprises a second coefficient and a third coefficient; when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, a product of the second coefficient and a first pathloss is used to determine a transmit power value of the first sub-signal, and a product of the third coefficient and a second pathloss is used to determine a transmit power value of the second sub-signal; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, a product of the first coefficient and a first pathloss is used to determine a transmit power value of the first signal; reference signal resources indicated by the first signaling in the first reference signal resource set are used to determine a third reference signal resource, and reference signal resources indicated by the first signaling in the second reference signal resource set are used to determine a fourth reference signal resource; a radio signal received in the third reference signal resource is used to determine the first pathloss, and a radio signal received in the fourth reference signal resource is used to determine the second pathloss.

13 . The second node according to claim 8 , wherein the first signaling comprises a first index group; when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, and the first index group is used to determine a pre-coding matrix indication respectively adopted by the first sub-signal and the second sub-signal; when the first signaling is not used to determine the second reference signal resource, the first index group is used to determine a precoding matrix indication adopted by the first signal.

14 . The second node according to claim 8 , wherein the first signaling comprises a first index group, the first index group is used to determine a first reference signal resource subset from the first reference signal resource set, or the first index group is used to simultaneously determine a first reference signal resource subset from the first reference signal resource set and a second reference signal resource subset from the second reference signal resource set.

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

receiving a first information set, the first information set being used to indicate a first parameter set and a second parameter set; and receiving a first signaling; and

transmitting a first signal;

wherein transmit power of the first signal is a first power value; the first parameter set and the second parameter set are both associated with a first reference signal resource set, and the first signaling indicates at least one reference signal resource in the first reference signal resource set; a target parameter set is one of the first parameter set and the second parameter set, and at least one candidate parameter comprised in the target parameter set is used to determine the first power value; whether the first signaling is used to indicate at least one reference signal resource in a second reference signal resource set is used to determine the target parameter set from the first parameter set and the second parameter set; the second reference signal resource set is different from the first reference signal resource set.

16 . The method in a first node according to claim 15 , wherein when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the target parameter set is the second parameter set; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, the target parameter set is the first parameter set.

17 . The method in a first node according to claim 15 , wherein when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, and the first reference signal resource set and second reference signal resource set are respectively used to determine Spatial Tx parameters of the first sub-signal and second sub-signal; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, only the first reference signal resource set in the first reference signal resource set and the second reference signal resource set is used to determine Spatial Tx parameters of the first signal.

18 . The method in a first node according to claim 15 , wherein the first parameter set comprises a first value, and the second parameter set comprises a second value and a third value; the first value and the second value are both for the first reference signal resource set, and the first value and the second value are different; when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, and the second value and the third value are respectively used to determine a transmit power value of the first sub-signal and a transmit power value the second sub-signal; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, the first value is used to determine a transmit power value of the first signal.

19 . The method in a first node according to claim 15 , wherein the first parameter set comprises a first coefficient, and the second parameter set comprises a second coefficient and a third coefficient; when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, a product of the second coefficient and a first pathloss is used to determine a transmit power value of the first sub-signal, and a product of the third coefficient and a second pathloss is used to determine a transmit power value of the second sub-signal; when the first signaling is not used to indicate reference signal resources in the second reference signal resource set, a product of the first coefficient and a first pathloss is used to determine a transmit power value of the first signal; reference signal resources indicated by the first signaling in the first reference signal resource set are used to determine a third reference signal resource, and reference signal resources indicated by the first signaling in the second reference signal resource set are used to determine a fourth reference signal resource; a radio signal received in the third reference signal resource is used to determine the first pathloss, and a radio signal received in the fourth reference signal resource is used to determine the second pathloss.

20 . The method in a first node according to claim 15 , wherein the first signaling comprises a first index group; when the first signaling is used to indicate at least one reference signal resource in the second reference signal resource set, the first signal comprises a first sub-signal and a second sub-signal, and the first index group is used to determine a pre-coding matrix indication respectively adopted by the first sub-signal and the second sub-signal; when the first signaling is not used to determine the second reference signal resource, the first index group is used to determine a precoding matrix indication adopted by the first signal;

or,

the first signaling comprises a first index group, the first index group is used to determine a first reference signal resource subset from the first reference signal resource set, or the first index group is used to simultaneously determine a first reference signal resource subset from the first reference signal resource set and a second reference signal resource subset from the second reference signal resource set.