Qualcomm incorporated (20240114479). RECONFIGURABLE INTELLIGENT SURFACE (RIS) AIDED USER EQUIPMENT (UE)-BASED ROUND-TRIP-TIME (RTT) POSITIONING simplified abstract

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RECONFIGURABLE INTELLIGENT SURFACE (RIS) AIDED USER EQUIPMENT (UE)-BASED ROUND-TRIP-TIME (RTT) POSITIONING

Organization Name

qualcomm incorporated

Inventor(s)

Weimin Duan of San Diego CA (US)

Jing Lei of San Diego CA (US)

Alexandros Manolakos of Escondido CA (US)

RECONFIGURABLE INTELLIGENT SURFACE (RIS) AIDED USER EQUIPMENT (UE)-BASED ROUND-TRIP-TIME (RTT) POSITIONING - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240114479 titled 'RECONFIGURABLE INTELLIGENT SURFACE (RIS) AIDED USER EQUIPMENT (UE)-BASED ROUND-TRIP-TIME (RTT) POSITIONING

Simplified Explanation

The patent application describes techniques for wireless positioning using reconfigurable intelligent surfaces (RIS). The user equipment (UE) transmits a signal to the RIS, receives a reflection of the signal, and calculates the distance based on the time difference between transmission and reception.

  • User equipment (UE) transmits an uplink reference signal to a reconfigurable intelligent surface (RIS) associated with a base station.
  • The UE receives a reflection of the signal from the RIS, with transmission parameters identifying it as the reflection of the original signal.
  • Distance between the UE and the RIS is calculated based on the time difference between signal transmission and reception.

Potential Applications

This technology can be applied in:

  • Indoor positioning systems
  • Location-based services
  • Augmented reality applications

Problems Solved

  • Improved accuracy in wireless positioning
  • Enhanced signal coverage and reliability
  • Reduced interference in signal transmission

Benefits

  • Precise location tracking
  • Efficient use of wireless resources
  • Seamless connectivity in dynamic environments

Potential Commercial Applications

Optimized for:

  • Smart buildings and infrastructure
  • IoT devices and networks
  • 5G and beyond wireless communication systems

Possible Prior Art

One possible prior art is the use of beamforming techniques in wireless communication systems to improve signal quality and coverage.

What are the potential limitations of this technology in real-world applications?

The real-world implementation of this technology may face challenges such as:

  • Interference from other wireless devices
  • Limited scalability in densely populated areas

How does this technology compare to existing wireless positioning systems?

This technology offers:

  • Enhanced accuracy and reliability in positioning
  • Improved signal coverage and connectivity
  • Potential for seamless integration with existing wireless networks


Original Abstract Submitted

disclosed are techniques for wireless positioning. in an aspect, a user equipment (ue) transmits an uplink reference signal towards a first reconfigurable intelligent surface (ris) associated with at least one base station, receives, from the first ris, a reflection of the uplink reference signal, wherein at least one transmission parameter of the reflection identifies the reflection as the reflection of the uplink reference signal, and enables a distance between the ue and the first ris to be calculated based, at least in part, on a transmission-to-reception (tx-rx) time difference measurement for the ue, the tx-rx time difference measurement representing a difference between a transmission time from the ue of the uplink reference signal to the first ris and a reception time at the ue of the reflection of the uplink reference signal from the first ris.

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