FFT window adjustment based on PRS peak processing

A user equipment (UE) configured to determine a first reference signal time difference (RSTD) value, the UE associated with a wireless network and comprising:

• a wireless transceiver configured to wirelessly communicate with entities in the wireless network;
• at least one memory;
• and
• at least one processor coupled to the wireless transceiver and the at least one memory, wherein the at least one processor is configured to:
• determine a first RSTD estimate and a first RSTD uncertainty associated with the first RSTD value;
• identify a search interval for the first RSTD value, the search interval extending from a difference between the first RSTD estimate and the first RSTD uncertainty to a sum of the first RSTD estimate and the first RSTD uncertainty;
• receive, via the wireless transceiver, wireless signals during the identified search interval using the wireless transceiver;
• determine a Fast Fourier Transform (FFT) window offset for decoding a first positioning reference signal (PRS) received during the identified search interval;
• and
• determine the first RSTD value based at least in part on the determined FFT window offset.

A non-transitory computer-readable storage medium storing instructions that, when executed by one or more processors of a user equipment (UE) associated with a wireless network, cause the UE to perform operations comprising:

• determining a first RSTD estimate and a first RSTD uncertainty associated with a first RSTD value;
• identifying a search interval for the first RSTD value, the search interval extending from a difference between the first RSTD estimate and the first RSTD uncertainty to a sum of the first RSTD estimate and the first RSTD uncertainty;
• receiving wireless signals during the identified search interval;
• determining a Fast Fourier Transform (FFT) window offset for decoding a first positioning reference signal (PRS) received during the identified search interval;
• and
• determining the first RSTD value based at least in part on the determined FFT window offset.