Common TCI state for application across multiple configured component carriers in carrier aggregation

A non-transitory computer-readable storage medium that stores instructions for execution by processing circuitry of a user equipment (UE) configured for operating in a fifth-generation new radio (5G NR) network), wherein the processing circuitry is configured to:

• decode a downlink control information (DCI) format indicating a Transmission Configuration Indication (TCI) state switch,
• the TCI state switch to indicate a TCI state ID for a common TCI state to be applied across multiple configured component carriers (CCs) in carrier aggregation (CA), the common TCI state associating two downlink reference signals (DL RSs) with a quasi-colocation (QCL) type;
• configure the UE to apply the common TCI state to the multiple configured CCs within a TCI state switching delay;
• and
• after application of the common TCI state to the multiple configured CCs, measure one of the two RSs to determine QCL information and apply the QCL information another of the two RSs.

An apparatus for a generation Node B (gNB) configured for operating in a fifth-generation new radio (5G NR) network), the apparatus comprising:

• processing circuitry;
• and memory,
• wherein the processing circuitry is configured to:
• encode a downlink control information (DCI) format indicating a Transmission Configuration Indication (TCI) state switch for transmission to a user equipment (UE), the TCI state switch to indicate a TCI state ID for a common TCI state to be applied across multiple configured component carriers (CCs) in carrier aggregation (CA), the common TCI state associating two downlink reference signals (DL RSs) with a quasi-colocation (QCL) type;
• decode an uplink channel carrying Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) information corresponding to the DCI indicating the TCI state switch, the uplink channel received from the UE after application by the UE of the common TCI state indicated by the TCI state ID across the multiple configured CCs.