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EP-4740651-A1 - SENSING DESIGN FOR USER EQUIPMENT (UE)

EP4740651A1EP 4740651 A1EP4740651 A1EP 4740651A1EP-4740651-A1

Abstract

An example method of radio frequency (RF) sensing performed by a User Equipment (UE) may comprise communicating video data at a video frame periodicity. The method may comprise obtaining a RF sensing signal configuration determined according to the video frame periodicity. The method may comprise performing RF sensing by communicating RF signals in accordance with the RF sensing signal configuration, wherein the RF signals are communicated during resources where the video data is not communicated.

Inventors

  • DUAN, Weimin
  • XU, HUILIN
  • HUANG, FEI
  • WU, SHUANSHUAN

Assignees

  • QUALCOMM INCORPORATED

Dates

Publication Date
20260513
Application Date
20240423

Claims (20)

  1. 1. A method of radio frequency (RF) sensing performed by a User Equipment (UE), the method comprising: communicating video data at a video frame periodicity; obtaining a RF sensing signal configuration determined according to the video frame periodicity; and performing RF sensing by communicating RF signals in accordance with the RF sensing signal configuration, wherein the RF signals are communicated during resources where the video data is not communicated.
  2. 2. The method of claim 1, wherein the RF sensing signal configuration is determined by the UE or received from another device.
  3. 3. The method of claim 1, wherein the RF sensing signal configuration is determined by: aligning starting timepoints of the RF sensing signals with the video frame periodicity; and quantizing the starting timepoints of the RF sensing signals to boundaries defined in terms of nearest integer milliseconds, slot boundaries of the RF sensing, or symbol boundaries of the RF sensing.
  4. 4. The method of claim 1, wherein the RF sensing signal configuration is determined by: determining non-uniform intervals for communicating the RF sensing signals.
  5. 5. The method of claim 1, wherein the RF sensing signal configuration is determined by: determining multiple starting offsets for communicating the RF sensing signals.
  6. 6. The method of claim 1, wherein the RF sensing signal configuration is determined by: determining a system frame number with a range that contains an integer number of sensing signal occasions.
  7. 7. The method of claim 1, wherein the RF sensing signal configuration is determined by: determining a shift offset for a first sensing signal occasion when a system frame number wraps around.
  8. 8. The method of claim 1, further comprising: configuring a minimum gap for communicating the video data with another device, wherein the minimum gap is determined according to a sensing signal occasion, and wherein the minimum gap defines a minimum number of time domain resources between an end of the sensing signal occasion and a start of an corresponding video data occasion.
  9. 9. The method of claim 8, further comprising: adjusting the communication of the video data during the minimum gap according to a result of the RF sensing.
  10. 10. A User Equipment (UE) for radio frequency (RF) sensing, and wherein the UE comprises: a transceiver; a memory; and one or more processors communicatively coupled with the transceiver and the memory, wherein the one or more processors are configured to: communicate video data at a video frame periodicity; obtain a RF sensing signal configuration determined according to the video frame periodicity; and perform RF sensing by communicating RF signals in accordance with the RF sensing signal configuration, wherein the RF signals are communicated during resources where the video data is not communicated.
  11. 11. The UE of claim 10, wherein the RF sensing signal configuration is determined by the UE or received from another device.
  12. 12. The UE of claim 10, wherein the RF sensing signal configuration is determined by: aligning starting timepoints of the RF sensing signals with the video frame periodicity; and quantizing the starting timepoints of the RF sensing signals to boundaries defined in terms of nearest integer milliseconds, slot boundaries of the RF sensing, or symbol boundaries of the RF sensing.
  13. 13. The UE of claim 10, wherein the RF sensing signal configuration is determined by: determining non-uniform intervals for communicating the RF sensing signals.
  14. 14. The UE of claim 10, wherein the RF sensing signal configuration is determined by: determining multiple starting offsets for communicating the RF sensing signals.
  15. 15. The UE of claim 10, wherein the RF sensing signal configuration is determined by: determining a system frame number with a range that contains an integer number of sensing signal occasions.
  16. 16. The UE of claim 10, wherein the RF sensing signal configuration is determined by: determining a shift offset for a first sensing signal occasion when a system frame number wraps around.
  17. 17. The UE of claim 10, wherein the one or more processors are further configured to: configure a minimum gap for communicating the video data with another device, wherein the minimum gap is determined according to a sensing signal occasion, and wherein the minimum gap defines a minimum number of time domain resources between an end of the sensing signal occasion and a start of an corresponding video data occasion.
  18. 18. The UE of claim 17, wherein the one or more processors are further configured to: adjust the communication of the video data during the minimum gap according to a result of the RF sensing.
  19. 19. An apparatus for of radio frequency (RF) sensing, the apparatus comprising: means for communicating video data at a video frame periodicity; means for obtaining a RF sensing signal configuration determined according to the video frame periodicity; and means for performing RF sensing by communicating RF signals in accordance with the RF sensing signal configuration, wherein the RF signals are communicated during resources where the video data is not communicated.
  20. 20. The apparatus of claim 19, wherein the RF sensing signal configuration is determined by the apparatus or received from another device.

Description

SENSING DESIGN FOR USER EQUIPMENT (UE) RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Application No. 18/348,176, filed July 6, 2023, entitled “SENSING DESIGN FOR USER EQUIPMENT (UE)”, which is assigned to the assignee hereof, and incorporated herein in its entirety by reference. BACKGROUND Field of Disclosure [0002] The present disclosure relates generally to the field of radio frequency (RF)- based sensing in a wireless network and more specifically to a method of RF sensing in conjunction with video data (e.g., video frames) communication performed by a User Equipment (UE). Description of Related Art [0003] UEs such as extended (XR) devices (e.g., virtual reality (VR), augmented reality (AR), or mixed reality (MR) devices) rely on peripheral sensors to gather 3D information about the device and the spatial structure of the environment. One common technique used in XR devices is simultaneous localization and mapping (SLAM), which employs cameras to construct a 3D map of the surroundings while simultaneously determining the device's location within that map. This method allows for accurate positioning and tracking within the XR experience. BRIEF SUMMARY [0004] An example method of radio frequency (RF) sensing performed by a User Equipment (UE) may comprise communicating video data at a video frame periodicity. The method may comprise obtaining a RF sensing signal configuration determined according to the video frame periodicity. The method may comprise performing RF sensing by communicating RF signals in accordance with the RF sensing signal configuration, wherein the RF signals are communicated during resources where the video data is not communicated. [0005] An example UE for RF sensing comprises a transceiver, a memory, and one or more processors communicatively coupled with the transceiver and the memory. The one or more processors may be configured to communicate video data at a video frame periodicity. The one or more processors may be configured to obtain a RF sensing signal configuration determined according to the video frame periodicity. The one or more processors may be configured to perform RF sensing by communicating RF signals in accordance with the RF sensing signal configuration, wherein the RF signals are communicated during resources where the video data is not communicated. [0006] An example apparatus for RF sensing may comprise means for communicating video data at a video frame periodicity. The apparatus may comprise means for obtaining a RF sensing signal configuration determined according to the video frame periodicity. The apparatus may comprise means for performing RF sensing by communicating RF signals in accordance with the RF sensing signal configuration, wherein the RF signals are communicated during resources where the video data is not communicated. [0007] An example non-transitory computer-readable medium storing instructions for RF sensing, the instructions may comprise code for communicating video data at a video frame periodicity. The instructions may comprise code for obtaining a RF sensing signal configuration determined according to the video frame periodicity. The instructions may comprise code for performing RF sensing by communicating RF signals in accordance with the RF sensing signal configuration, wherein the RF signals are communicated during resources where the video data is not communicated. [0008] This summary is neither intended to identify key or essential features of the claimed subject matter, nor is it intended to be used in isolation to determine the scope of the claimed subject matter. The subject matter should be understood by reference to appropriate portions of the entire specification of this disclosure, any or all drawings, and each claim. The foregoing, together with other features and examples, will be described in more detail below in the following specification, claims, and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS [0009] FIG. 1 is an illustration of a communication/positioning/sensing system, according to an embodiment. [0010] FIG. 2 shows a diagram of a 5G NR network 200, illustrating an embodiment of a wireless system (e.g., communication/positioning/sensing system 100) implemented in 5G NR. [0011] FIG. 3 is a diagram showing an example of a RF sensing system and associated terminology. [0012] FIG. 4 shows a timing diagram of a RF sensing signal configuration where the RF sensing is synchronized with video data communication, according to an embodiment. [0013] FIG. 5 shows timing diagram of a RF sensing signal configuration where the RF sensing is synchronized with video data communication, according to an embodiment. [0014] FIG. 6 is a flow diagram of a method of RF sensing performed by a UE, according to some embodiments. [0015] FIG. 7 is a block diagram of an embodiment of a UE, which can be utilized in embodiments as described herein. DETAILED DESCRIPTION [0016] The following description is di