18252033. FFT WINDOW ADJUSTMENT BASED ON PRS PEAK PROCESSING simplified abstract (QUALCOMM Incorporated)

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FFT WINDOW ADJUSTMENT BASED ON PRS PEAK PROCESSING

Organization Name

QUALCOMM Incorporated

Inventor(s)

Mukesh Kumar of Hyderabad, PB (IN)

Alexandros Manolakos of Escondido CA (US)

Guttorm Ringstad Opshaug of Redwood City CA (US)

Srinivas Yerramalli of San Diego CA (US)

Fnu Siddhant of Bangalore, KA (IN)

Pulkit Rajgadiya of Hyderabad, TG (IN)

FFT WINDOW ADJUSTMENT BASED ON PRS PEAK PROCESSING - A simplified explanation of the abstract

This abstract first appeared for US patent application 18252033 titled 'FFT WINDOW ADJUSTMENT BASED ON PRS PEAK PROCESSING

Simplified Explanation

The abstract describes a patent application for a user equipment (UE) associated with a wireless network. The UE determines a first reference signal time difference value and estimates the RSTD (Reference Signal Time Difference) along with its uncertainty. It identifies a search interval based on the estimated RSTD value and uncertainty. During this search interval, the UE receives wireless signals and determines a Fast Fourier Transform (FFT) window offset for decoding a positioning reference signal (PRS). The first RSTD value is then determined based on the FFT window offset.

  • The patent application is related to user equipment (UE) in a wireless network.
  • The UE determines a reference signal time difference value.
  • The UE estimates the RSTD value and its uncertainty.
  • A search interval is identified based on the estimated RSTD value and uncertainty.
  • The UE receives wireless signals during the search interval.
  • The UE determines a Fast Fourier Transform (FFT) window offset for decoding a positioning reference signal (PRS).
  • The first RSTD value is determined based on the FFT window offset.

Potential Applications

  • Wireless communication networks
  • Positioning and location-based services
  • Mobile devices and smartphones

Problems Solved

  • Accurate determination of reference signal time difference (RSTD) in wireless networks
  • Efficient decoding of positioning reference signals (PRS)
  • Improving the accuracy of location-based services

Benefits

  • Improved accuracy in determining RSTD values
  • Enhanced performance of positioning and location-based services
  • Better optimization of wireless network resources


Original Abstract Submitted

A user equipment (UE) associated with a wireless network determines a first reference signal time difference value. The UE determines a first RSTD estimate and a first RSTD uncertainty associated with the first RSTD value, identifies 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, receives wireless signals during the identified search interval, determines a Fast Fourier Transform (FFT) window offset for decoding a first positioning reference signal (PRS) received during the identified search interval, and determines the first RSTD value based at least in part on the determined FFT window offset.

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