Method and apparatus for resource allocation
Embodiments of the present application are related to a method and apparatus for resource allocation. An exemplary method of the present application includes: receiving, from a first node, at least one signaling indicating at least one of first spatial domain filter configuration information and first demodulation reference signal (DMRS) configuration information for a first link of a second node, and receiving or transmitting data on a second link of the second node, wherein the first link is the same as or different from the second link.
1 . A method, comprising:
receiving, from a first node, at least one signaling indicating one or both of first spatial domain filter configuration information and first demodulation reference signal (DMRS) configuration information for a first link of a second node; and
receiving or transmitting data on a second link of the second node, wherein the first link is the same as or different from the second link, and wherein the first spatial domain filter configuration is for at least one time domain resource, and a time domain granularity of the at least one time domain resource is configured by a radio resource control (RRC) signaling.
2 . The method of claim 1 , wherein the at least one signaling is at least one of: group common downlink link control (DCI), or semi-static signaling(s).
3 . The method of claim 1 , wherein the first DMRS configuration information comprises at least one of DMRS code division multiplexing (CDM) group, at least one DMRS port index, and a number of frontloaded DMRS symbols.
4 . The method of claim 1 , wherein the first link or the second link is a link between the first node and the second node.
5 . The method of claim 1 , wherein the first link or the second link is a link between the second node and a third node different from the first node.
6 . The method of claim 1 , wherein the first link is different from the second link, and the method comprises one or both of:
determining second spatial domain filter configuration information for the second link of the second node based on the first spatial domain filter configuration information; and
determining second DMRS configuration information for the second link based on the first DMRS configuration information.
7 . The method of claim 1 , wherein the first spatial domain filter configuration information comprises a channel state information-reference signal (CSI-RS) resource index, a synchronization signal block (SSB) index, a sounding reference signal (SRS) resource index, or a combination thereof.
8 . The method of claim 1 , wherein the first spatial domain filter configuration information comprises a first precoding matrix indicator (PMI) index subset including a PMI index.
9 . The method of claim 8 , wherein the first PMI index subset is selected from a PMI set predefined or configured by a radio resource control (RRC) signaling or a medium access control (MAC) control element (CE).
10 . The method of claim 1 , wherein the one or both of first spatial domain filter configuration information and first DMRS configuration information is configured per carrier component (CC) or per bandwidth part (BWP).
11 . The method of claim 1 , wherein a unit of the time domain granularity or a unit of the time domain resource is an absolute value.
12 . The method of claim 1 , wherein a unit of the time domain granularity or a unit of the time domain resource is a slot or a symbol with respect to a subcarrier spacing (SCS).
13 . The method of claim 12 , wherein the SCS is configured by a radio resource control (RRC) signaling, or a medium access control (MAC) control element (CE).
14 . A first node, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the first node to:
receive, from a first node, at least one signaling indicating one or both of first spatial domain filter configuration information and first demodulation reference signal (DMRS) configuration information for a first link of a second node; and
receive or transmitting data on a second link of the second node, wherein the first link is the same as or different from the second link, and wherein the first spatial domain filter configuration is for at least one time domain resource, and a time domain granularity of the at least one time domain resource is configured by a radio resource control (RRC) signaling.
15 . The first node of claim 14 , wherein the at least one signaling is at least one of: group common downlink link control (DCI), or semi-static signaling(s).
16 . The first node of claim 14 , wherein the first DMRS configuration information comprises at least one of DMRS code division multiplexing (CDM) group, at least one DMRS port index, and a number of frontloaded DMRS symbols.
17 . The first node of claim 14 , wherein the first link or the second link is a link between the first node and the second node.
18 . The first node of claim 14 , wherein the first link or the second link is a link between the second node and a third node different from the first node.
19 . A processor for wireless communication, comprising:
at least one controller coupled with at least one memory and configured to cause the processor to:
receive, from a first node, at least one signaling indicating one or both of first spatial domain filter configuration information and first demodulation reference signal (DMRS) configuration information for a first link of a second node; and
receive or transmitting data on a second link of the second node, wherein the first link is the same as or different from the second link, and wherein the first spatial domain filter configuration is for at least one time domain resource, and a time domain granularity of the at least one time domain resource is configured by a radio resource control (RRC) signaling.