Informing base station regarding user equipment's reception of beam change instruction

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

• receiving a downlink control information (DCI) from a base station;
• determining that a beam change instruction is detected in the DCI;
• and
• indicating via an uplink transmission which is associated with the DCI that the beam change instruction is detected and that a data transmission is successfully received, the uplink transmission including at least one of a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH), wherein the uplink transmission includes a beam change demodulation reference signal (DMRS) sequence or a tri-state indicator.

An apparatus for wireless communication of a base station, comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• determine to change from a first beam to a second beam;
• generate a beam change instruction to indicate the determination to change from the first beam to the second beam;
• transmit, to a user equipment (UE), the beam change instruction in a downlink control information (DCI);
• and
• determine whether or not the beam change instruction is detected by the UE, wherein to determine whether or not the beam change instruction is detected comprises the at least one processor configured to:
• receive an uplink transmission from the UE, the uplink transmission associated with the DCI and indicating that the beam change instruction is received and that a data transmission is successfully received, wherein the uplink transmission includes a beam change demodulation reference signal (DMRS) sequence or a tri-state indicator.

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

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• receive a downlink control information (DCI) from a base station;
• determine that a beam change instruction is detected in the DCI;
• and
• indicate via an uplink transmission which is associated with the DCI that the beam change instruction is detected and that a data transmission is successfully received, the uplink transmission including at least one of a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH), wherein the uplink transmission includes a beam change demodulation reference signal (DMRS) sequence or a tri-state indicator.