Method and system in wireless communication for determining QCL parameter to receive a refeence signal
The present application provides a method and device in a node used for wireless communications. A first node receives a first information block and a second information block; receives a first reference signal; and receives a first signal. The first information block is used to trigger a transmission of the first reference signal, a time interval between the first information block and the first reference signal is less than a first reference interval, and the first reference interval is a positive integer; the second information block is used to determine the first signal; the first reference signal and the first signal comprise a same multi-carrier symbol in time domain; the second information block is used to determine a first index, and the first index is used to determine whether a QCL parameter for receiving the first reference signal is related to a QCL parameter for receiving the first signal.
1 . A node for wireless communications, comprising:
a transmitter/receiver, and
a processor, wherein the transmitter/receiver and the processor are configured to:
receive a first information block;
receive a second information block;
receive a first reference signal, wherein the first information block includes information related to triggering transmission of the first reference signal; and
receive a first signal, wherein a time interval between receiving the first information block and receiving the first reference signal is less than a first reference interval, the second information block is used to determine receiving the first signal, the first reference signal and the first signal comprise at least one same multi-carrier symbol in a time domain, the second information block is used to determine a first index, and the first index is used to determine whether a Quasi Co-Location (QCL) parameter for receiving the first reference signal is related to a QCL parameter for receiving the first signal.
2 . The node of claim 1 , wherein the first information block comprises a channel state information (CSI) request field, and wherein the first information block is used to determine a first CSI triggering state and the first reference signal is associated with the first CSI triggering state.
3 . The node of claim 1 , wherein the second information block is carried by downlink control information (DCI) signaling.
4 . The node of claim 1 , wherein the first reference signal comprises an aperiodic channel state information reference signal (CSI-RS).
5 . The node of claim 1 , wherein the first signal comprises a downlink signal received on a physical downlink control channel (PDSCH).
6 . The node of claim 1 , wherein the first reference interval is a beam Switch Timing.
7 . The node of claim 1 , wherein the first index is a CORESETPoolIndex.
8 . The node of claim 1 , wherein the QCL parameter for receiving the first reference signal comprises a QCL assumption.
9 . The node of claim 1 configured as a User Equipment (UE).
10 . The node of claim 1 , wherein the first information block, the second information block, the first reference signal, and the first signal are received from a second node configured as an NR node B (gNB).
11 . A method in a node for wireless communications, comprising:
receiving a first information block;
a second information block;
receiving a first reference signal, wherein the first information block includes information related triggering transmission of the first reference signal; and
receiving a first signal, wherein a time interval between receiving the first information block and receiving the first reference signal is less than a first reference interval, the second information block is used to determine receiving the first signal, the first reference signal and the first signal comprise at least one same multi-carrier symbol in a time domain, the second information block is used to determine a first index, and the first index is used to determine whether a Quasi Co-Location (QCL) parameter for receiving the first reference signal is related to a QCL parameter for receiving the first signal.
12 . The method of claim 11 , wherein the first information block comprises a channel state information (CSI) request field, and wherein the first information block is used to determine a first CSI triggering state and the first reference signal is associated with the first CSI triggering state.
13 . The method of claim 11 , wherein the second information block is carried by downlink control information (DCI) signaling.
14 . The method of claim 11 , wherein the first reference signal comprises an aperiodic channel state information reference signal (CSI-RS).
15 . The method of claim 11 , wherein the first signal comprises a downlink signal received on a physical downlink control channel (PDSCH).
16 . The method of claim 11 , wherein the first reference interval is a beam Switch Timing.
17 . The method of claim 11 , wherein the first index is a CORESETPoolIndex.
18 . The method of claim 11 , wherein the QCL parameter for receiving the first reference signal comprises a QCL assumption.
19 . The method of claim 11 , wherein the node is configured as a User Equipment (UE).
20 . The method of claim 11 , wherein the first information block, the second information block, the first reference signal, and the first signal are received from a second node configured as an NR node B (gNB).