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CN-122002219-A - Sensing method and corresponding device

CN122002219ACN 122002219 ACN122002219 ACN 122002219ACN-122002219-A

Abstract

The application provides a sensing method which can be applied to a communication system of communication sensing integrated ISAC, and comprises the following steps: the central node carries out incoherent fusion on the first sensing results of the sensing nodes to determine a plurality of (x, y) of the sensing target, the sensing nodes determine related second sensing results according to the plurality of (x, y), and the central node carries out coherent fusion on the plurality of second sensing results to determine a plurality of three-dimensional coordinates of the sensing target. Therefore, the sensing targets are measured from different observation angles and then fused, incoherent fusion is carried out on the (x, y) dimension, side lobe lifting caused by the aperture discontinuity of the antenna arrays of the different sensing nodes can be restrained, coherent fusion is carried out on the z dimension, the problem that the scattering coefficient of the sensing targets caused by the aperture discontinuity of the antenna arrays of the different sensing nodes is incoherent can be solved, and therefore imaging quality and imaging precision of fused sensing imaging can be improved.

Inventors

  • YU YANG
  • LUO JIAJIN
  • MA HUI
  • YANG JUNXIANG
  • YAN ZIHAO
  • SHAO QI
  • YAN JUNKUN

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241101

Claims (17)

  1. 1. A method of sensing, the method being applied to a first communication device, the method comprising: Non-coherent fusion is carried out on a plurality of first perception results to determine first information, wherein the plurality of first perception results correspond to a plurality of second communication devices, and the first information comprises a plurality of two-dimensional coordinates of a perception target and dimensions of the plurality of two-dimensional coordinates; the first information is sent to the plurality of second communication devices, wherein the plurality of two-dimensional coordinates and the dimension of the plurality of two-dimensional coordinates are used for each second communication device to determine a second perception result; and performing coherent fusion on a plurality of second perception results to determine second information, wherein the plurality of second perception results are from a plurality of second communication devices, and the second information comprises a plurality of three-dimensional coordinates of the perception target.
  2. 2. The method of claim 1, wherein the first information further includes range information of a third dimension coordinate, and the second sensing result is a sensing result of a position indicated by the plurality of two-dimensional coordinates of the range of the third dimension coordinate indicated by the range information of the third dimension coordinate.
  3. 3. The method according to claim 1 or 2, wherein the first information further includes reference array element positions or reference heights corresponding to the plurality of second communication devices, respectively, and the second sensing result is a sensing result of positions indicated by the plurality of two-dimensional coordinates determined by the second communication device according to the reference array element positions or the reference heights.
  4. 4. A method according to any one of claims 1-3, wherein any one of the plurality of two-dimensional coordinates corresponds to at least one of the plurality of three-dimensional coordinates.
  5. 5. The method of any of claims 1-4, wherein prior to non-coherently fusing the plurality of first perceptual results to determine the first information, the method further comprises: The method comprises the steps of sending a fusion sensing request, wherein the fusion sensing request comprises first-stage indication information and first fusion indication information, and/or second-stage indication information and second fusion indication information, wherein the first fusion indication information is used for indicating that the first sensing result corresponding to the first stage is subjected to incoherent fusion, and the second fusion indication information is used for indicating that the second sensing result corresponding to the second stage is subjected to coherent fusion.
  6. 6. The method according to any of claims 1-5, wherein the first perceptual result comprises amplitude information and no phase information.
  7. 7. The method of any of claims 1-6, wherein the second perceptual result comprises amplitude information and phase information.
  8. 8. A method of sensing, comprising: Receiving first information from a first communication device, wherein the first information includes a plurality of two-dimensional coordinates of a perception target and dimensions of the plurality of two-dimensional coordinates; determining a second perception result according to the plurality of two-dimensional coordinates and the dimensions of the plurality of two-dimensional coordinates; And sending the second perception result to the first communication device, wherein the second perception result is used for the first communication device to determine second information, and the second information comprises a plurality of three-dimensional coordinates of the perception target.
  9. 9. The method of claim 8, wherein the first information further comprises range information for a third dimensional coordinate; the determining a second perception result according to the plurality of two-dimensional coordinates and the dimensions of the plurality of two-dimensional coordinates includes: and determining the second sensing result of the positions indicated by the two-dimensional coordinates according to the range of the third-dimensional coordinates indicated by the range information of the third-dimensional coordinates.
  10. 10. The method of claim 8, wherein the first information further comprises reference element positions or reference heights for the plurality of second communication devices, respectively; the determining a second perception result according to the plurality of two-dimensional coordinates and the dimensions of the plurality of two-dimensional coordinates includes: and determining the second sensing result of the positions indicated by the two-dimensional coordinates according to the reference array element positions or the reference heights.
  11. 11. The method of claim 8, wherein prior to receiving the first information from the first communication device, the method further comprises: The method comprises the steps of receiving a fusion sensing request from a first communication device, wherein the fusion sensing request comprises first stage indication information and first fusion indication information, and/or second stage indication information and second fusion indication information, wherein the first fusion indication information is used for indicating that the first sensing result corresponding to the first stage is subjected to incoherent fusion, and the second fusion indication information is used for indicating that the second sensing result corresponding to the second stage is subjected to coherent fusion.
  12. 12. The method according to any of claims 8-11, wherein the first perceptual result comprises amplitude information and no phase information.
  13. 13. The method according to any of claims 8-12, wherein the second perceptual result comprises amplitude information and phase information.
  14. 14. A communication device comprising means for performing the method of any one of claims 1 to 7 or means for performing the method of any one of claims 8 to 13.
  15. 15. A communication device comprising at least one processor for performing the method of any one of claims 1 to 7 or for performing the method of any one of claims 8 to 13.
  16. 16. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program or instructions which, when executed by a communication device, implements the method according to any of claims 1 to 7 or implements the method according to any of claims 8 to 13.
  17. 17. A computer program product comprising a computer program or instructions which, when executed by a computer, performs the method of any one of claims 1 to 7 or performs the method of any one of claims 8 to 13.

Description

Sensing method and corresponding device Technical Field The application relates to the technical field of communication, in particular to a sensing method and a corresponding device. Background As one of the sensing technologies, the real aperture sensing technology is free from time and weather interference, has no imaging blind area, can realize 360-degree circular scanning imaging, and is widely applied to a plurality of fields. From the real aperture perception theory, the distance resolution of the system is determined by the bandwidth, and the azimuth resolution is determined by the aperture of the antenna array. Due to the limited aperture size of the antenna array, the azimuthal resolution resulting in single site perception is limited, e.g. real aperture perception may not be distinguishable when two targets are too close together. Compared with single site awareness, multiple site awareness has great potential and advantages in aspects of target detection, interference resistance and the like. Meanwhile, the multi-site perception has the characteristic of space diversity, can obtain more abundant target information from different angle perception targets, and can obtain larger equivalent physical aperture at the same time, thereby obtaining higher azimuth resolution ratio than single site perception. Although the space observation angle of the multiple sites is larger, the imaging quality of the target can be improved, the multiple sites are usually arranged discontinuously, so that the aperture of the antenna array is discontinuous, and the discontinuity can cause problems of side lobe lifting, incoherence of a target scattering coefficient and the like in the imaging process of the target, and the imaging quality and the imaging precision are affected. Disclosure of Invention The application provides a perception method which is used for improving the imaging quality and the imaging precision of a perception target. The application also provides a corresponding apparatus, a computer readable storage medium, a computer program product, etc. The first aspect of the application provides a sensing method which is applied to a first communication device and comprises the steps of carrying out incoherent fusion on a plurality of first sensing results to determine first information, wherein the plurality of first sensing results correspond to a plurality of second communication devices, the first information comprises a plurality of two-dimensional coordinates of a sensing target and dimensions of the plurality of two-dimensional coordinates, the first information is sent to the plurality of second communication devices, the plurality of two-dimensional coordinates and the dimensions of the plurality of two-dimensional coordinates are used for each second communication device to determine a second sensing result, the plurality of second sensing results are subjected to coherent fusion to determine second information, and the plurality of second sensing results are from the plurality of second communication devices and comprise a plurality of three-dimensional coordinates of the sensing target. In the present application, the first communication device may be a central node, a Sensing Function (SF) network element, and a sensing management function (SENSING MANAGEMENT function, SMF network element, where the central node may be a node configured with sensing parameters for a transmitting end of a sensing signal or a receiving end of the sensing signal, and/or a node summarizing sensing results. In the application, the second communication device can be a transmitting node, a receiving node or a sensing node, wherein the transmitting node refers to a node for transmitting a sensing signal and can be called a transmitting end, and the receiving node refers to a node for receiving an echo signal of the sensing signal and can be called a receiving end. The sensing node refers to a node integrating a transmitting end of a sensing signal and a receiving end of an echo signal. In the application, the transmitting node, the receiving node or the sensing node can be the access network equipment or the chip in the access network equipment, the terminal equipment or the chip in the terminal equipment. In the application, coherent fusion refers to fusion of coherent signals, wherein the coherent signals are signals meeting coherent conditions, and the coherent conditions comprise at least one of identical vibration directions, identical vibration frequencies, identical phases or constant phase differences. In the application, incoherent fusion refers to fusion of incoherent signals, wherein the incoherent signals are signals which do not meet coherent conditions, namely, any one of vibration directions, vibration frequencies, phases or phase differences is different. In the present application, the first information may include coordinates of multiple (x, y) dimensions, such as [ x 1,y1],[x2,y2],…,[xM,yM ] and the