Methods and apparatuses for uplink transmission management
A method, performed by a User Equipment (UE), for Uplink (UL) transmission management includes the UE determining a default spatial domain transmission filter for an UL resource according to at least one Quasi Co-Location (QCL) parameter of a Control Resource Set (CORESET) after determining that the UL resource is not configured with a spatial domain transmission filter and a pathloss reference Reference Signal (RS) resource, and transmitting the UL resource by applying the default spatial domain transmission filter.
1. A method performed by a User Equipment (UE) for Uplink (UL) transmission management in a wireless communication system, the method comprising:
receiving, from a base station, RRC configuration signaling configuring the UE with a Physical Uplink Control Channel (PUCCH) resource, with PUCCH-Spatial Relation Information (PUCCH-SpatialRelationInfo) of the PUCCH resource not being configured;
determining a default spatial domain transmission filter for the PUCCH resource according to at least one Quasi Co-Location (QCL) parameter selected from of a Control Resource Set (CORESET) having one of a lowest CORESET-ID and a highest CORESET-ID in an active Downlink (DL) Bandwidth Part (BWP); and
transmitting the PUCCH resource by applying the default spatial domain transmission filter.
2. The method of claim 1 , wherein the PUCCH resource and the CORESET are associated with a Component Carrier (CC).
3. The method of claim 1 , further comprising:
determining a default pathloss reference RS resource for the PUCCH resource by selecting an RS resource with a QCL-type D from a plurality of RS resources indicated by the at least one QCL parameter of the CORESET; wherein the QCL-type D is related to spatial receiving characteristics that may be used by a UE for receiving a target RS or channel.
4. A User Equipment (UE) for Uplink (UL) transmission management in a wireless communication system, the UE comprising:
a transceiver;
a memory; and
at least one processor coupled to the memory, the at least one processor being configured to:
receive, from a base station via the transceiver, RRC configuration signaling configuring the UE with a Physical Uplink Control Channel (PUCCH) resource, with PUCCH-Spatial Relation Information (PUCCH-SpatialRelationInfo) of the PUCCH resource not being configured;
determine a default spatial domain transmission filter for the PUCCH resource according to at least one Quasi Co-Location (QCL) parameter selected from a Control Resource Set (CORESET) having one of a lowest CORESET-ID and a highest CORESET-ID in an active Downlink (DL) Bandwidth Part (BWP); and
transmit, via the transceiver, the PUCCH resource by applying the default spatial domain transmission filter.
5. The UE of claim 4 , wherein the PUCCH resource and the CORESET are associated with a Component Carrier (CC).
6. The UE of claim 4 , wherein the at least one processor is further configured to:
determine a default pathloss reference RS resource for the PUCCH resource by selecting an RS resource with a QCL-type D from a plurality of RS resources indicated by the at least one QCL parameter of the CORESET, wherein the QCL-type D is related to spatial receiving characteristics that may be used by a UE for receiving a target RS or channel.