18486897. METHOD AND APPARATUS FOR 5G POSITIONING ACCURACY IMPROVEMENT IN PRESENCE OF PHASE NOISE simplified abstract (QUALCOMM Incorporated)

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METHOD AND APPARATUS FOR 5G POSITIONING ACCURACY IMPROVEMENT IN PRESENCE OF PHASE NOISE

Organization Name

QUALCOMM Incorporated

Inventor(s)

Mukesh Kumar of Hyderabad (IN)

Guttorm Ringstad Opshaug of Redwood City CA (US)

METHOD AND APPARATUS FOR 5G POSITIONING ACCURACY IMPROVEMENT IN PRESENCE OF PHASE NOISE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18486897 titled 'METHOD AND APPARATUS FOR 5G POSITIONING ACCURACY IMPROVEMENT IN PRESENCE OF PHASE NOISE

Simplified Explanation

The patent application describes a system for improving positioning accuracy in high-frequency radio networks, specifically in 5G New Radio networks operating in mmWave. The system utilizes a Phase Tracking Reference Signal (PTRS) that is transmitted along with Positioning Reference Signals (PRS) to correct the phase offset between symbols in the PRS and enhance positioning accuracy.

Key points of the patent application:

  • Mobile devices and base stations are enabled to support improved positioning accuracy in high-frequency radio networks.
  • Phase Tracking Reference Signal (PTRS) is transmitted with Positioning Reference Signals (PRS) to correct the phase offset between symbols in the PRS.
  • The PTRS or a phase ramp of the staggered symbols in the PRS can be used to estimate and correct the phase offset.
  • Less than all of the symbols transmitted in the PRS can be used to generate positioning measurements, minimizing the impact of phase noise.

Potential applications of this technology:

  • Enhanced positioning accuracy in high-frequency radio networks, particularly in 5G New Radio networks operating in mmWave.
  • Improved location-based services and applications that rely on accurate positioning information.
  • Enhanced performance of autonomous vehicles and drones that require precise positioning data.
  • Improved indoor positioning systems in environments with high-frequency radio networks.

Problems solved by this technology:

  • Addressing the impact of phase noise in high-frequency radio networks, which can degrade positioning accuracy.
  • Correcting the phase offset between symbols in the Positioning Reference Signals (PRS) to improve positioning accuracy.
  • Minimizing the impact of phase noise on positioning measurements.

Benefits of this technology:

  • Improved accuracy in determining the location of mobile devices in high-frequency radio networks.
  • Enhanced reliability of location-based services and applications.
  • Increased performance and safety of autonomous vehicles and drones.
  • Better indoor positioning capabilities in environments with high-frequency radio networks.


Original Abstract Submitted

A mobile device and base station are enabled to support improved positioning accuracy in the presence of phase noise in high frequency radio network, such as in 5G New Radio network operating in mmWave. Phase Tracking Reference Signal (PTRS) may be transmitted with Positioning Reference Signals (PRS) and used for positioning and/or used to correct the phase offset between symbols in the PRS. A request may be made to transmit PTRS alone or with the PRS, or that the PRS is transmitted with a specific PRS frame structure, e.g., with a specific comb value, that minimizes the impact of phase noise. The PTRS or a phase ramp of the staggered symbols in the PRS may be used to estimate and correct the phase offset. Less than all of the symbols transmitted in the PRS may be used to generate positioning measurements to minimize the impact of phase noise.

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