Uplink control channel beam switch procedure

A method for wireless communications at a base station, comprising:

• transmitting, in a downlink shared data channel, a beam switch command instructing a user equipment (UE) to switch from a first uplink control beam to a second uplink control beam for transmitting acknowledgement feedback by the UE;
• monitoring an uplink control channel for the acknowledgment feedback via the first uplink control beam and the second uplink control beam, the acknowledgment feedback indicating whether decoding the beam switch command was successful;
• and
• transmitting a transmission to the UE based at least in part on which of the first uplink control beam or the second uplink control beam was used to transmit the acknowledgment feedback.

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

• a processor,
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive, in a downlink shared data channel, a beam switch command instructing the apparatus to switch from a first uplink control beam to a second uplink control beam for transmitting acknowledgement feedback by the apparatus;
• select at least one uplink control beam to transmit the acknowledgment feedback based at least in part on whether decoding the beam switch command is successful, wherein each of the first uplink control beam and the second uplink control beam are selected to transmit the acknowledgment feedback based at least in part on successfully decoding the beam switch command;
• and
• transmit, in an uplink control channel via the at least one selected uplink control beam, the acknowledgment feedback indicating whether decoding the beam switch command was successful.

An apparatus for wireless communications at a base station, comprising:

• a processor,
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• transmit, in a downlink shared data channel, a beam switch command instructing a user equipment (UE) to switch from a first uplink control beam to a second uplink control beam for transmitting acknowledgement feedback by the UE;
• monitor an uplink control channel for the acknowledgment feedback via the first uplink control beam and the second uplink control beam, the acknowledgment feedback indicating whether decoding the beam switch command was successful;
• and
• transmit a transmission to the UE based at least in part on which of the first uplink control beam or the second uplink control beam was used to transmit the acknowledgment feedback.