METHOD AND DEVICE IN NODES USED FOR WIRELESS COMMUNICATION
The present application discloses a method and device in a node for wireless communications. A first node receives a first signaling and a second signaling, wherein the first signal is used to configure a first RS resource, and a first radio resource depends on the second signaling; receives a first reference signal in the first RS resource; the first RS resource is used for positioning, and whether a reception for the first reference signal is used for positioning depends on whether the first reference signal is associated with the first radio resource; a transmitter of the first signaling is different from a transmitter of the second signaling, and a transmitter of the second signaling is the same as a transmitter of the first reference signal. The present application improves the performance of NR positioning in RIS scenarios.
1 . A first node for wireless communications, comprising:
a first receiver, receiving a first signaling and a second signaling, the first signaling being used to configure a first RS resource, a first radio resource depending on the second signal; receiving a first reference signal in the first RS resource;
wherein the first RS resource is used for positioning, and whether a reception for the first reference signal is used for positioning depends on whether the first reference signal is associated with the first radio resource; a transmitter of the first signaling is different from a transmitter of the second signaling, and a transmitter of the second signaling is the same as a transmitter of the first reference signal.
2 . The first node according to claim 1 , wherein the first reference signal is associated with the first radio resource, and a reception for the first reference signal is used for positioning; or, the first reference signal is not associated with a first radio resource, and a reception for the first reference signal is not used for positioning.
3 . The first node according to claim 1 , wherein the first radio resource comprises a second reference signal, and the meaning of the phrase that the first reference signal is associated with the first radio resource comprises that the first reference signal and the second reference signal are spatially correlated.
4 . The first node according to claim 1 , wherein the first radio resource comprises a first time-domain resource set, and the meaning of the phrase that the first reference signal is associated with the first radio resource comprises that the first time-domain resource set comprises time-domain resources occupied by the first reference signal.
5 . The first node according to claim 1 , wherein the first radio resource is configured to a first device, the first node is a terminal, the first device is a device other than a terminal, and the first device is used to reflect a radio signal transmitted by a transmitter of the second signaling.
6 . The first node according to claim 5 , wherein a radio link between a transmitter of the second signaling and the first device is a first link, and a radio link between the first device and a terminal is a second link; the second reference signal is only configured to a latter one of the first link and the second link.
7 . The first node according to claim 5 , wherein a radio link between a transmitter of the second signaling and the first device is a first link, and a radio link between the first device and a terminal is a second link; the first time-domain resource set is only configured to a latter one of the first link and the second link.
8 . The first node according to claim 1 , wherein the first signaling belongs to LPP messages.
9 . The first node according to claim 1 , wherein the first RS resource comprises one or multiple PRS resources.
10 . The first node according to claim 1 , wherein the meaning of the first radio resource depending on the second signaling comprises at least one of the following:
the second signaling indicates time-domain resources occupied by the first radio resource;
the second signaling indicates frequency-domain resources occupied by the first radio resource;
the second signaling indicates spatial-domain resources occupied by the first radio resource;
the second signaling indicates a QCL relation corresponding to the first radio resource;
the second signaling indicates reference signal resources spatially related to the first radio resource.
11 . The first node according to claim 5 , wherein the first device comprises a Reconfigurable Intelligent Surface (RIS).
12 . The first node according to claim 6 , wherein the first link is a control link, and the first link is for an RIS.
13 . The first node according to claim 6 , wherein the second link is a link between an RIS and a terminal.
14 . A second node for wireless communications, comprising:
a first transmitter, transmitting a second signaling, a first radio resource depending on the second signaling; transmitting a first reference signal in a first RS resource;
wherein a first signaling is used to configure the first Reference Signal (RS) resource, the first RS resource is used for positioning, and whether a reception for the first reference signal is used for positioning depends on whether the first reference signal is associated with the first radio resource; a transmitter of the first signaling is different from the second node.
15 . The second node according to claim 14 , wherein the first reference signal is associated with the first radio resource, and a reception for the first reference signal is used for positioning; or, the first reference signal is not associated with a first radio resource, and a reception for the first reference signal is not used for positioning.
16 . The second node according to claim 14 , wherein the first radio resource comprises a second reference signal, and the meaning of the phrase that the first reference signal is associated with the first radio resource comprises that the first reference signal and the second reference signal are spatially correlated.
17 . The second node according to claim 14 , wherein the first radio resource comprises a first time-domain resource set, and the meaning of the phrase that the first reference signal is associated with the first radio resource comprises that the first time-domain resource set comprises time-domain resources occupied by the first reference signal.
18 . The second node according to claim 14 , wherein the first radio resource is configured to a first device, the first device is a device other than a terminal, and the first device is used to reflect a radio signal transmitted from the second node.
19 . The second node according to claim 18 , wherein a radio link between the second node and the first device is a first link, and a radio link between the first device and a terminal is a second link; the second reference signal is only configured to a latter one of the first link and the second link.
20 . A method in a first node for wireless communications, comprising:
receiving a first signaling and a second signaling, the first signaling being used to configure a first RS resource, a first radio resource depending on the second signal; and
receiving a first reference signal in the first RS resource;
wherein the first RS resource is used for positioning, and whether a reception for the first reference signal is used for positioning depends on whether the first reference signal is associated with the first radio resource; a transmitter of the first signaling is different from a transmitter of the second signaling, and a transmitter of the second signaling is the same as a transmitter of the first reference signal.