Uplink-based positioning reference signaling in multi-beam systems

A method for wireless communication at a base station, comprising:

• identifying a beam correspondence between a set of synchronization signals and an uplink positioning reference signal;
• transmitting an indication of the beam correspondence;
• transmitting the set of synchronization signals using one or more transmit beams;
• and
• receiving the uplink positioning reference signal from a user equipment (UE) based at least in part on the transmitted indication of the beam correspondence.

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 executable by the processor to cause the apparatus to:
• identify a beam correspondence between a set of synchronization signals and an uplink positioning reference signal, the set of synchronization signals transmitted by a base station;
• receive, from the base station, a synchronization signal at the UE;
• determine a transmit beam for the UE to use to transmit the uplink positioning reference signal based at least in part on the received synchronization signal and the identified beam correspondence;
• and
• transmit the uplink positioning reference signal using the determined transmit beam.

An apparatus for wireless communication at a base station, comprising:

• a processor, memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• identify a beam correspondence between a set of synchronization signals and an uplink positioning reference signal;
• transmit an indication of the beam correspondence;
• transmit the set of synchronization signals using one or more transmit beams;
• and
• receive the uplink positioning reference signal from a user equipment (UE) based at least in part on the transmitted indication of the beam correspondence.