Techniques for configuring physical layer signature feedback in wireless communications

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

• transmitting configuration information to a user equipment (UE) for at least one physical layer signal that is modified by a physical layer signature, the physical layer signature associated with a set of parameters that are applied to the physical layer signal;
• receiving, from the UE, an indication of a mismatch between a set of estimated parameters of a received physical layer signature received at the UE and the set of parameters provided in the configuration information;
• and
• transmitting, to the UE, an indication that the set of estimated parameters is associated with a valid physical layer signature or an invalid physical layer signature based at least in part on whether the set of estimated parameters corresponds to a neighboring physical layer signature of one or more neighboring network entities.

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

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive configuration information for at least one physical layer signal that is modified by a physical layer signature, the physical layer signature is associated with a set of parameters that are applied to the physical layer signal;
• generate a set of estimated parameters of a received physical layer signature of a received physical layer signal;
• identify a mismatch between the set of estimated parameters of the received physical layer signature and the set of parameters provided in the configuration information;
• and
• transmit, based at least in part on the identified mismatch, an indication of the mismatch to a network entity, the indication of the mismatch including the set of estimated parameters of the received physical layer signature.

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

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• transmit configuration information to a user equipment (UE) for at least one physical layer signal that is modified by a physical layer signature, the physical layer signature associated with a set of parameters that are applied to the physical layer signal;
• receive, from the UE, an indication of a mismatch between a set of estimated parameters of a received physical layer signature received at the UE and the set of parameters provided in the configuration information;
• and
• transmit, to the UE, an indication that the set of estimated parameters is associated with a valid physical layer signature or an invalid physical layer signature based at least in part on whether the set of estimated parameters corresponds to a neighboring physical layer signature of one or more neighboring network entities.