UE capability signaling about TCI states or spatial relations for a group of bandwidth parts or component carriers

A method of wireless communication at a user equipment (UE), comprising:

• transmitting, to a base station, capability information indicating a first number of active spatial relations supported by the UE per group of bandwidth parts (BWPs) or per group of component carriers (CCs), wherein the first number of active spatial relations do not exceed spatial resources allocated to the UE for the group of BWPs or the group of CCs;
• receiving, from the base station, a configuration of a second number of active spatial relations for the group of BWPs or the group of CCs that is limited to be less than or equal to the first number of active spatial relations supported by the UE based on the capability information;
• and
• monitoring for a downlink communication based on the second number of active spatial relations.

An apparatus for wireless communication at a user equipment (UE), comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• transmit, to a base station, capability information indicating a first number of active transmission configuration indication (TCI) states supported by the UE per group of bandwidth parts (BWPs) or per group of component carriers (CCs), wherein the first number of active TCI states do not exceed spatial resources allocated to the UE for the group of BWPs or the group of CCs;
• receive, from the base station, based on the transmitted capability information, a configuration of a second number of active TCI states for the group of BWPs or CCs that is limited to be less than or equal to the first number of active TCI states supported by the UE based on the capability information;
• and
• monitor for downlink communication based on the second number of active TCI states.

An apparatus for wireless communication at a user equipment (UE), comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• transmit, to a base station, capability information indicating a first number of active spatial relations supported by the UE per group of bandwidth parts (BWPs) or per group of component carriers (CCs), wherein the first number of active spatial relations do not exceed spatial resources allocated to the UE for the group of BWPs or the group of CCs;
• and
• receive, from the base station based on the capability information, a configuration of a second number of active spatial relations for the group of BWPs or the group of CCs that is limited to be less than or equal to the first number of active spatial relations supported by the UE.