Overlapping downlink control channel and cell-specific reference signal bandwidths

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

• at least one processor;
• at least one memory coupled with the at least one processor;
• and
• instructions stored in the at least one memory and executable by the at least one processor to cause the apparatus to:
• transmit, to a user equipment (UE), first control signaling indicating a downlink control channel configuration associated with a first radio access technology, the downlink control channel configuration for a first set of time-frequency resources comprising one or more control channel elements;
• transmit, to the UE, second control signaling indicating a cell-specific reference signal configuration associated with a second radio access technology, the cell-specific reference signal configuration for a second set of time-frequency resources that at least partially overlaps with at least one control channel element of the one or more control channel elements;
• and
• transmit, to the UE, a demodulation reference signal within a third set of time-frequency resources of a downlink control channel in accordance with a demodulation reference signal configuration that is identified for the third set of time-frequency resources based at least in part on the downlink control channel configuration and the cell-specific reference signal configuration, the third set of time-frequency resources included within the one or more control channel elements of the first set of time-frequency resources exclusive of the second set of time-frequency resources.

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

• receiving first control signaling indicating a downlink control channel configuration associated with a first radio access technology, the downlink control channel configuration for a first set of time-frequency resources comprising one or more control channel elements;
• receiving second control signaling indicating a cell-specific reference signal configuration associated with a second radio access technology, the cell-specific reference signal configuration for a second set of time-frequency resources that at least partially overlaps with at least one control channel element of the one or more control channel elements;
• and
• receiving a demodulation reference signal within a third set of time-frequency resources of a downlink control channel in accordance with a demodulation reference signal configuration that is identified for the third set of time-frequency resources based at least in part on the downlink control channel configuration and the cell-specific reference signal configuration, the third set of time-frequency resources included within the one or more control channel elements of the first set of time-frequency resources exclusive of the second set of time-frequency resources.

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

• transmitting, to a user equipment (UE), first control signaling indicating a downlink control channel configuration associated with a first radio access technology, the downlink control channel configuration for a first set of time-frequency resources comprising one or more control channel elements;
• transmitting, to the UE, second control signaling indicating a cell-specific reference signal configuration associated with a second radio access technology, the cell-specific reference signal configuration for a second set of time-frequency resources that at least partially overlaps with at least one control channel element of the one or more control channel elements;
• and
• transmitting, to the UE, a demodulation reference signal within a third set of time-frequency resources of a downlink control channel in accordance with a demodulation reference signal configuration that is identified for the third set of time-frequency resources based at least in part on the downlink control channel configuration and the cell-specific reference signal configuration, the third set of time-frequency resources included within the one or more control channel elements of the first set of time-frequency resources exclusive of the second set of time-frequency resources.