Common reference signals for multiple search spaces within a control resource set

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

• identifying a configuration for control resource sets (coresets), each coreset including a common search space (CSS) and a UE-specific search space (USS);
• receiving a coreset during a transmission time interval;
• identifying reference signals in the CSS and the USS of the received coreset, the identified reference signals scrambled using a common sequence for the coreset;
• and
• decoding the CSS and the USS based at least in part on the identified reference signals.

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

• means for identifying a configuration for control resource sets (coresets), each coreset including a common search space (CSS) and a UE-specific search space (USS);
• means for receiving a coreset during a transmission time interval;
• means for identifying reference signals in the CSS and the USS of the received coreset, the identified reference signals scrambled using a common sequence;
• and
• means for decoding the CSS and the USS based at least in part on the identified reference signals.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• identify, at a base station, a control resource set (coreset) for a transmission time interval, the coreset including a common search space (CSS) and a UE-specific search space (USS);
• transmit at least one reference signal in the CSS and at least one reference signal in the USS of the coreset, the reference signals in the CSS and the USS scrambled using a common sequence.

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

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• identify a configuration for control resource sets (coresets), each coreset including a common search space (CSS) and a UE-specific search space (USS);
• receive a coreset during a transmission time interval;
• identify reference signals in the CSS and the USS of the received coreset, the identified reference signals scrambled using a common sequence;
• and
• decode the CSS and the USS based at least in part on the identified reference signals.