Reduced subcarrier spacing window

An apparatus for wireless communication at a network entity, comprising:

• one or more memories;
• and
• one or more processors coupled with the one or more memories, the one or more processors individually or collectively configured to cause the network entity to:
• output one or more first downlink transmissions via a first set of frequency resources according to a first subcarrier spacing;
• obtain, an indication of a capability of a user equipment (UE) to switch from the first subcarrier spacing to a second subcarrier spacing, the second subcarrier spacing being less than the first subcarrier spacing, the indication of the capability of the UE to switch from the first subcarrier spacing to the second subcarrier spacing comprising an indication of an amount of time for the UE to switch from the first subcarrier spacing to the second subcarrier spacing;
• output, in response to the obtained indication of the capability of the UE, signaling that indicates a configuration to monitor the first set of frequency resources according to the second subcarrier spacing based at least in part on the capability of the UE to switch from the first subcarrier spacing to the second subcarrier spacing;
• and
• output one or more second downlink transmissions via the first set of frequency resources according to the second subcarrier spacing based at least in part on the outputted signaling that indicates the configuration.

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

• transmitting, to a network entity, an indication of a capability of the UE to switch from monitoring a first set of frequency resources according to a first subcarrier spacing to monitoring the first set of frequency resources according to a second subcarrier spacing, the second subcarrier spacing being less than the first subcarrier spacing, the indication of the capability of the UE to switch from the first subcarrier spacing to the second subcarrier spacing indicating an amount of time for the UE to switch from the first subcarrier spacing to the second subcarrier spacing;
• receiving, from the network entity in response to transmitting the indication of the capability of the UE, first signaling that indicates a configuration for monitoring the first set of frequency resources according to the second subcarrier spacing;
• and
• switching from monitoring the first set of frequency resources according to the first subcarrier spacing to monitoring the first set of frequency resources according to the second subcarrier spacing based in accordance with the configuration.

A method for wireless communication at a network entity, comprising:

• outputting one or more first downlink transmissions via a first set of frequency resources according to a first subcarrier spacing;
• obtaining, an indication of a capability of a user equipment (UE) to switch from the first subcarrier spacing to a second subcarrier spacing, the second subcarrier spacing being less than the first subcarrier spacing, the indication of the capability of the UE to switch from the first subcarrier spacing to the second subcarrier spacing indicates an amount of time for the UE to switch from the first subcarrier spacing to the second subcarrier spacing;
• outputting, in response to obtaining the indication of the capability of the UE, signaling that indicates a configuration for monitoring the first set of frequency resources according to the second subcarrier spacing based at least in part on the capability of the UE to switch from the first subcarrier spacing to the second subcarrier spacing;
• and
• outputting one or more second downlink transmissions via the first set of frequency resources according to the second subcarrier spacing based at least in part on the outputted signaling that indicates the configuration.

A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by one or more processors to:

• transmit, to a network entity, an indication of a capability of the UE to switch from a first subcarrier spacing to monitor a first set of frequency resources to a second subcarrier spacing to monitor the first set of frequency resources, the second subcarrier spacing being less than the first subcarrier spacing, the indication of the capability of the UE to switch from the first subcarrier spacing to the second subcarrier spacing comprising an indication of an amount of time for the UE to switch from the first subcarrier spacing to the second subcarrier spacing;
• receive, from the network entity, in response to the transmission of the indication of the capability of the UE, a first signal that indicates a configuration to monitor the first set of frequency resources according to the second subcarrier spacing;
• and
• switch from the first subcarrier spacing to the second subcarrier spacing to monitor the first set of frequency resources in accordance with the configuration.

A non-transitory computer-readable medium storing code for wireless communication at a network entity, the code comprising instructions executable by one or more processors to:

• output one or more first downlink transmissions via a first set of frequency resources according to a first subcarrier spacing;
• obtain an indication of a capability of a user equipment (UE) to switch from the first subcarrier spacing to a second subcarrier spacing, the second subcarrier spacing being less than the first subcarrier spacing, the indication of the capability of the UE to switch from the first subcarrier spacing to the second subcarrier spacing comprising an indication of an amount of time for the UE to switch from the first subcarrier spacing to the second subcarrier spacing;
• output, in response to the obtained indication of the capability of the UE, signaling that indicates a configuration to monitor the first set of frequency resources according to the second subcarrier spacing based at least in part on the capability of the UE to switch from the first subcarrier spacing to the second subcarrier spacing;
• and
• output one or more second downlink transmissions via the first set of frequency resources according to the second subcarrier spacing based at least in part on the signaling that is being outputted that indicates the configuration.