Method and device in nodes used for wireless communication
View Patent ↗A method and a device in a node used for wireless communications. A first node receives K first-type reference signals; and transmits a first signal. A transmit power for the first signal is a first power value, a first reference power value is used to determine the first power value, and the first reference power value is linear with a first pathloss. A measurement on a first reference signal is used to determine the first pathloss, the first reference signal being one of the K first-type reference signals; a first index is related to at least a transmission antenna port for the first signal, and is used for determining the first reference signal out of the K first-type reference signals. The method above ensures a more accurate estimation of the interference sidelink transmission has caused to the cellular networks, thus improving the sidelink transmission performance and resource utilization.
1. A first node for wireless communications, comprising:
a first receiver, receiving K first-type reference signals, K being a positive integer greater than 1; and
a first processor, transmitting a first signal;
wherein a transmit power for the first signal is a first power value, a first reference power value is used to determine the first power value, and the first reference power value is linear with a first pathloss, a measurement on a first reference signal is used to determine the first pathloss, the first reference signal being a first-type reference signal of the K first-type reference signals; a first index is related to a transmission antenna port/transmission antenna ports for the first signal, the first index being used to determine the first reference signal out of the K first-type reference signals; a transmitter for the K first-type reference signals is different from a target receiver for the first signal.
2. The first node according to claim 1 , wherein a same spatial domain filter is used for transmitting the first signal and receiving the first reference signal.
3. The first node according to claim 1 , wherein the first processor operates a second-type reference signal; wherein a second reference power value is used to determine the first power value, the second reference power value being linear with a second pathloss; a measurement on the second-type reference signal is used to determine the second pathloss; the operation is transmitting, or the operation is receiving.
4. The first node according to claim 3 , wherein the first processor receives a first information block; wherein the operation is transmitting; the first information block indicates a first channel quality, a measurement on the second-type reference signal is used to determine the first channel quality, the first channel quality being used to determine the second pathloss.
5. The first node according to claim 1 , wherein the first reference signal is associated with the first index.
6. The first node according to claim 1 , wherein measurements on the K first-type reference signals are respectively used to determine K pathlosses, the K pathlosses being used to determine the transmission antenna port/transmission antenna ports for the first signal.
7. The first node according to claim 1 , wherein the first index indicates a second reference signal, the second reference signal being associated with the first reference signal; a target receiver for the second reference signal includes a transmitter for the K first-type reference signals.
8. The first node according to claim 1 , wherein the first receiver receives a second information block; wherein the second information block indicates configuration information for each of the K first-type reference signals.
9. A second node for wireless communications, comprising:
a first transmitter, transmitting K first-type reference signals, K being a positive integer greater than 1;
wherein a measurement on a first reference signal is used to determine a first pathloss, the first reference signal being one of the K first-type reference signals; a first index is related to a transmission antenna port/transmission antenna ports for a first signal, a target receiver for the first signal is different from the second node; a transmit power for the first signal is a first power value, a first reference power value is used to determine the first power value, the first reference power value being linear with the first pathloss; the first index is used to determine the first reference signal out of the K first-type reference signals.
10. The second node according to claim 9 , wherein a same spatial domain filter is used for transmitting the first signal and receiving the first reference signal.
11. The second node according to claim 9 , wherein the first reference signal is associated with the first index; or, measurements on the K first-type reference signals are respectively used to determine K pathlosses, the K pathlosses being used to determine the transmission antenna port/transmission antenna ports for the first signal.
12. The second node according to claim 9 , wherein the first index indicates a second reference signal, the second reference signal being associated with the first reference signal; a target receiver for the second reference signal includes the second node.
13. The second node according to claim 9 , wherein the first transmitter transmits a second information block; wherein the second information block indicates configuration information for each of the K first-type reference signals.
14. A method in a first node for wireless communications, comprising:
receiving K first-type reference signals, K being a positive integer greater than 1; and
transmitting a first signal;
wherein a transmit power for the first signal is a first power value, a first reference power value is used to determine the first power value, and the first reference power value is linear with a first pathloss, a measurement on a first reference signal is used to determine the first pathloss, the first reference signal being a first-type reference signal of the K first-type reference signals; a first index is related to a transmission antenna port/transmission antenna ports for the first signal, the first index being used to determine the first reference signal out of the K first-type reference signals; a transmitter for the K first-type reference signals is different from a target receiver for the first signal.
15. The method according to claim 14 , wherein a same spatial domain filter is used for transmitting the first signal and receiving the first reference signal.
16. The method according to claim 14 , comprising:
operating a second-type reference signal;
wherein a second reference power value is used to determine the first power value, the second reference power value being linear with a second pathloss; a measurement on the second-type reference signal is used to determine the second pathloss; the operation is transmitting, or the operation is receiving.
17. The method according to claim 16 , comprising:
receiving a first information block;
wherein the operation is transmitting; the first information block indicates a first channel quality, a measurement on the second-type reference signal is used to determine the first channel quality, the first channel quality being used to determine the second pathloss.
18. The method according to claim 14 , wherein the first reference signal is associated with the first index; or, measurements on the K first-type reference signals are respectively used to determine K pathlosses, the K pathlosses being used to determine the transmission antenna port/transmission antenna ports for the first signal.
19. The method according to claim 14 , wherein the first index indicates a second reference signal, the second reference signal being associated with the first reference signal; a target receiver for the second reference signal includes a transmitter for the K first-type reference signals.
20. The method according to claim 14 , comprising:
receiving a second information block;
wherein the second information block indicates configuration information for each of the K first-type reference signals.