Carrier aggregation uplink switch gap detection and report

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

• determining, based at least in part on a capability of a user equipment (UE), a duration of a monitoring window to use to monitor for uplink transmissions from the UE, wherein the duration of the monitoring window is associated with a switching time of the UE in accordance with the capability of the UE;
• transmitting, to the UE, an indication of the duration of the monitoring window;
• transmitting, to the UE, a control signal scheduling uplink resources for an uplink transmission by the UE on at least a first component carrier, the first component carrier in a first radio frequency spectrum band;
• and
• receiving, within the duration of the monitoring window, the uplink transmission on the first component carrier using the scheduled uplink resources.

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

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the UE to:
• receive, from a network device, an indication of a duration of a monitoring window used by the network device to monitor for uplink transmissions from the UE, wherein the duration of the monitoring window is associated with a switching time of the UE;
• receive a control signal scheduling uplink resources for an uplink transmission by the UE on at least a first component carrier, the first component carrier in a first radio frequency spectrum band;
• reconfigure, in response to the received control signal, a first transmit chain of the UE from a second component carrier in a second radio frequency spectrum band to the first component carrier in the first radio frequency spectrum band for the uplink transmission;
• and
• transmit, within the duration of the monitoring window and using at least the reconfigured first transmit chain, the uplink transmission on the first component carrier using the scheduled uplink resources.

A network device for wireless communication, comprising:

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the network device to:
• determine, based at least in part on a capability of a user equipment (UE), a duration of a monitoring window to use to monitor for uplink transmissions from the UE, wherein the duration of the monitoring is associated with a switching time of the UE in accordance with the capability of the UE;
• transmit, to the UE, an indication of the monitoring window;
• transmit, to the UE, a control signal scheduling uplink resources for an uplink transmission by the UE on at least a first component carrier, the first component carrier in a first radio frequency spectrum band;
• and
• receive, within the duration of the monitoring window, the uplink transmission on the first component carrier using the scheduled uplink resources.

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

• means for receiving, from a network device, an indication of a duration of a monitoring window used by the network device to monitor for uplink transmissions from the UE, wherein the duration of the monitoring window is associated with a switching time of the UE;
• means for receiving a control signal scheduling uplink resources for an uplink transmission by the UE on at least a first component carrier, the first component carrier in a first radio frequency spectrum band;
• means for reconfiguring, in response to the received control signal, a first transmit chain of the UE from a second component carrier in a second radio frequency spectrum band to the first component carrier in the first radio frequency spectrum band for the uplink transmission;
• and
• means for transmitting, within the duration of the monitoring window and using at least the reconfigured first transmit chain, the uplink transmission on the first component carrier using the scheduled uplink resources.