METHOD AND DEVICE IN NODES USED FOR WIRELESS COMMUNICATION
The present application discloses a method and a device in a node for wireless communications. A first node receives a first signaling, the first signaling being used to configure a first RS resource, a first signal and a second signal, the first signal being associated with a first device identification (ID); and receives the second signal, the second signal being associated with a second device ID; the first signaling is identified by the second device ID, the first RS resource is spatially correlated to the first signal, and whether receiving the second signal includes detecting the first signal depends on a spatial correlation between the second signal and the first RS resource. The present application optimizes the anti-interference capability of the terminal in interference scenarios, which in turn improves the overall reception performance.
1 . A first node for wireless communications, comprising:
a first receiver, receiving a first signaling, the first signaling being used to configure a first RS resource, a first signal and a second signal, the first signal being associated with a first device identification (ID); and
receiving the second signal, the second signal being associated with a second device ID;
wherein the first signaling is identified by the second device ID, the first RS resource is spatially correlated to the first signal, and whether receiving the second signal includes detecting the first signal depends on a spatial correlation between the second signal and the first RS resource.
2 . The first node according to claim 1 , characterized in that the detecting the first signal includes blind decoding, and the receiving the second signal includes blind decoding; that whether receiving the second signal includes detecting the first signal depends on a spatial correlation between the second signal and the first RS resource means: compared with cases in which the second signal and the first RS resource are not spatially correlated, fewer times of blind decoding are performed for the second signal in cases in which the second signal and the first RS resource are spatially correlated.
3 . The first node according to claim 1 , characterized in that the second signal and the first RS resource are spatially correlated, the receiving the second signal including the detecting the first signal; or the second signal and the first RS resource are not spatially correlated, the receiving the second signal not including the detecting the first signal.
4 . The first node according to claim 1 , characterized in that the meaning of the receiving the second signal including the detecting the first signal includes at least one of:
decoding of the second signal including rate matching for the first signal; or
decoding of the second signal including puncturing for the first signal; or
decoding of the second signal including interference cancelation for the first signal.
5 . The first node according to claim 1 , characterized in that the first signaling configures at least a former of the first device ID or the second device ID.
6 . The first node according to claim 1 , characterized in that a device identified by the first device ID is used to reflect a radio signal sent from a transmitter of the second signal.
7 . The first node according to claim 4 , characterized in that the first signal and the second signal are respectively used for a first link and a second link; the first link corresponds to first-type devices, while the second link corresponds to terminals; the first-type devices are different from the terminals.
8 . The first node according to claim 1 , characterized in that the first signaling is used to configure time-frequency resources occupied by the first signal, and the first signaling is used to indicate a transmission power value of the first signal.
9 . The first node according to claim 1 , characterized in that the first signal is used to control a node other than the first node, while the second signal is used to control the first node.
10 . The first node according to claim 1 , characterized in that there exists overlapping time-frequency resource between the first signal and the second signal.
11 . The first node according to claim 1 , characterized in that the detecting the first signal includes at least one of:
resuming the first signal having been received;
whitening an interference of the first signal with the second signal;
eliminating the interference of the first signal with the second signal;
performing channel decoding for at least a first channel occupied by the first signal;
receiving a reference signal on at least second RS resource occupied by the first signal, or performing channel estimation for a reference signal on the second RS resource.
12 . The first node according to claim 1 , characterized in that when the second signal and the first RS resource are spatially correlated, the receiving the second signal includes the detecting the first signal; when the second signal and the first RS resource are not spatially correlated, the receiving the second signal does not include the detecting the first signal.
13 . The first node according to claim 1 , characterized in that the detecting the first signal includes iterative decoding, and the receiving the second signal includes iterative decoding; that whether receiving the second signal includes detecting the first signal depends on a spatial correlation between the second signal and the first RS resource means: compared with cases in which the second signal and the first RS resource are not spatially correlated, fewer times of iterative decoding are performed for the second signal in cases in which the second signal and the first RS resource are spatially correlated.
14 . The first node according to claim 6 , characterized in that the device identified by the first device ID comprises a RIS.
15 . The first node according to claim 6 , characterized in that the device identified by the first device ID comprises a receiving module, the receiving module being used to receive the first signal; and the device identified by the first device ID comprises a reflecting module, the reflecting module being used to reflect the radio signal sent from the transmitter of the second signal.
16 . A second node for wireless communications, comprising:
a first transmitter, transmitting a first signaling, the first signaling being used to configure a first RS resource, a first signal and a second signal, the first signal being associated with a first device identification (ID); and
transmitting the second signal, the second signal being associated with a second device ID;
wherein the first signaling is identified by the second device ID, the first RS resource is spatially correlated to the first signal, and whether the second signal includes detecting the first signal when being received depends on a spatial correlation between the second signal and the first RS resource.
17 . The second node according to claim 16 , characterized in that the detecting the first signal includes blind decoding, and the receiving the second signal includes blind decoding; that whether receiving the second signal includes detecting the first signal depends on a spatial correlation between the second signal and the first RS resource means: compared with cases in which the second signal and the first RS resource are not spatially correlated, fewer times of blind decoding are performed for the second signal in cases in which the second signal and the first RS resource are spatially correlated.
18 . The second node according to claim 16 , characterized in that the second signal and the first RS resource are spatially correlated, the receiving the second signal including the detecting the first signal; or the second signal and the first RS resource are not spatially correlated, the receiving the second signal not including the detecting the first signal.
19 . The second node according to claim 16 , characterized in that the meaning of the receiving the second signal including the detecting the first signal includes at least one of:
decoding of the second signal including rate matching for the first signal; or
decoding of the second signal including puncturing for the first signal; or
decoding of the second signal including interference cancelation for the first signal.
20 . A method in a first node for wireless communications, comprising:
receiving a first signaling, the first signaling being used to configure a first RS resource, a first signal and a second signal, the first signal being associated with a first device identification (ID); and receiving the second signal, the second signal being associated with a second device ID;
wherein the first signaling is identified by the second device ID, the first RS resource is spatially correlated to the first signal, and whether receiving the second signal includes detecting the first signal depends on a spatial correlation between the second signal and the first RS resource.