WO-2026091619-A1 - SENSING METHOD AND CORRESPONDING APPARATUS

WO2026091619A1WO 2026091619 A1WO2026091619 A1WO 2026091619A1WO-2026091619-A1

Abstract

Provided in the present application is a sensing method, which is applicable to an integrated sensing and communication (ISAC) communication system. The method comprises: a central node performing incoherent fusion on first sensing results of a plurality of sensing nodes, in order to determine a plurality of (x, y) coordinates of a sensing target; on the basis of the plurality of (x, y) coordinates, the sensing nodes determining related second sensing results; and the central node performing coherent fusion on the plurality of second sensing results, in order to determine a plurality of three-dimensional coordinates of the sensing target. In this way, a plurality of sensing nodes measure a sensing target from different observation angles, and then perform fusion. Performing incoherent fusion in the (x, y) dimensions can suppress sidelobe elevation caused by the aperture discontinuity of antenna arrays of the different sensing nodes, and coherent fusion in the z dimension can solve the problem of incoherent scattering coefficients of the sensing target caused by the aperture discontinuity of the antenna arrays of the different sensing nodes, thereby improving the quality and accuracy of fused sensing imaging.

Inventors

YU, YANG
LUO, Jiajin
MA, HUI
YANG, JunXiang
YAN, Zihao
SHAO, Shuai
YAN, Junkun

Assignees

华为技术有限公司

Dates

Publication Date: 20260507
Application Date: 20250628
Priority Date: 20241101

Claims (17)

A sensing method, characterized in that the method is applied to a first communication device, the method comprising: Multiple first perception results are noncoherently fused to determine first information; wherein, the multiple first perception results correspond to multiple second communication devices, and the first information includes multiple two-dimensional coordinates of the perceived target and the dimensions of the multiple two-dimensional coordinates; The first information is sent to the plurality of second communication devices; wherein the plurality of two-dimensional coordinates and the dimensions of the plurality of two-dimensional coordinates are used by each of the second communication devices to determine a second sensing result; Coherent fusion of multiple second sensing results is performed to determine second information; wherein the multiple second sensing results come from multiple second communication devices, and the second information includes multiple three-dimensional coordinates of the sensing target.
According to the method of claim 1, the first information further includes range information of the third-dimensional coordinates, and the second perception result is the perception result of the position indicated by the plurality of two-dimensional coordinates of the range of the third-dimensional coordinates indicated by the range information of the third-dimensional coordinates.
According to the method of claim 1 or 2, the first information further includes the reference element position or reference height corresponding to the plurality of second communication devices respectively; the second sensing result is the sensing result of the position indicated by the plurality of two-dimensional coordinates determined by the second communication device based on the reference element position or the reference height.
The method according to any one of claims 1-3 is characterized in that any one of the plurality of two-dimensional coordinates corresponds to at least one of the plurality of three-dimensional coordinates.
The method according to any one of claims 1-4, characterized in that, before performing incoherent fusion on multiple first sensing results to determine first information, the method further includes: Send a fusion sensing request; wherein the fusion sensing request includes 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 to indicate incoherent fusion of the first sensing result corresponding to the first stage, and the second fusion indication information is used to indicate coherent fusion of the second sensing result corresponding to the second stage.
The method according to any one of claims 1-5, wherein the first sensing result includes amplitude information but does not include phase information.
The method according to any one of claims 1-6, wherein the second sensing result includes amplitude information and phase information.
A sensing method, characterized in that it includes: Receive first information from a first communication device; wherein the first information includes multiple two-dimensional coordinates of the perceived target and the dimensions of the multiple two-dimensional coordinates; The second perception result is determined based on the plurality of two-dimensional coordinates and the dimensions of the plurality of two-dimensional coordinates; The second sensing result is sent to the first communication device; wherein the second sensing result is used by the first communication device to determine second information, the second information including multiple three-dimensional coordinates of the sensing target.
According to the method of claim 8, the first information further includes range information of the third-dimensional coordinates; Determining the second perception result based on the plurality of two-dimensional coordinates and the dimensions of the plurality of two-dimensional coordinates includes: Based on the range of the third-dimensional coordinates indicated by the range information of the third-dimensional coordinates, the second perception result of the position indicated by the plurality of two-dimensional coordinates is determined.
According to the method of claim 8, the first information further includes the reference array element positions or reference heights corresponding to the plurality of second communication devices respectively; Determining the second perception result based on the plurality of two-dimensional coordinates and the dimensions of the plurality of two-dimensional coordinates includes: The second sensing result is obtained by determining the position indicated by the plurality of two-dimensional coordinates based on the position of the reference array element or the reference height.
The method according to claim 8, characterized in that, before receiving the first information from the first communication device, the method further includes: Receive a fusion sensing request from the first communication device; wherein the fusion sensing request includes 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 to indicate incoherent fusion of the first sensing result corresponding to the first stage, and the second fusion indication information is used to indicate coherent fusion of the second sensing result corresponding to the second stage.
The method according to any one of claims 8-11, wherein the first sensing result includes amplitude information but does not include phase information.
The method according to any one of claims 8-12, wherein the second sensing result includes amplitude information and phase information.
A communication device, characterized in that it includes a module for performing the method as described in any one of claims 1 to 7, or includes a module for performing the method as described in any one of claims 8 to 13.
A communication device, characterized in that it includes at least one processor, the at least one processor being configured to perform the method as described in any one of claims 1 to 7, or the at least one processor being configured to perform the method as described in any one of claims 8 to 13.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program or instructions that, when executed by a communication device, implement the method as described in any one of claims 1 to 7, or implement the method as described in any one of claims 8 to 13.
A computer program product, characterized in that it includes a computer program or instructions, which, when executed by a computer, implement the method as described in any one of claims 1 to 7, or implement the method as described in any one of claims 8 to 13.

Description

A sensing method and corresponding device This application claims priority to Chinese Patent Application No. 202411559202.X, filed with the State Intellectual Property Office of China on November 1, 2024, entitled "A Sensing Method and Corresponding Device", the entire contents of which are incorporated herein by reference. Technical Field This application relates to the field of communication technology, specifically to a sensing method and corresponding device. Background Technology As a sensing technology, real aperture sensing is unaffected by time or weather, has no imaging blind spots, and can achieve 360° panoramic imaging, making it widely used in various fields. According to real aperture sensing theory, the system's distance resolution is determined by bandwidth, while the azimuth resolution is determined by the aperture of the antenna array. Because the aperture size of the antenna array is limited, the azimuth resolution of a single station is limited; for example, when two targets are too close, real aperture sensing may fail to distinguish them. Compared to single-site sensing, multi-site sensing has greater potential and advantages in target detection and anti-interference capabilities. Furthermore, multi-site sensing possesses spatial diversity, allowing for the perception of targets from different angles to obtain richer target information. It also achieves a larger equivalent physical aperture, resulting in higher azimuth resolution than single-site sensing. Although multiple stations offer a wider spatial observation angle and can improve the imaging quality of the target, these stations are usually arranged discontinuously. This results in a discontinuous aperture in the antenna array, which can lead to problems such as sidelobe lift and incoherent target scattering coefficients during imaging, affecting imaging quality and accuracy. Summary of the Invention This application provides a sensing method for improving the imaging quality and accuracy of a sensed target. This application also provides corresponding apparatus, computer-readable storage media, and computer program products. A first aspect of this application provides a sensing method applied to a first communication device. The method includes: performing incoherent fusion on multiple first sensing results to determine first information; wherein the multiple first sensing results correspond to multiple second communication devices, and the first information includes multiple two-dimensional coordinates of a sensing target and the dimensions of the multiple two-dimensional coordinates; sending the first information to the multiple second communication devices; wherein the multiple two-dimensional coordinates and the dimensions of the multiple two-dimensional coordinates are used by each second communication device to determine a second sensing result; and performing coherent fusion on the multiple second sensing results to determine second information; wherein the multiple second sensing results come from the multiple second communication devices, and the second information includes multiple three-dimensional coordinates of the sensing target. In this application, the first communication device can be a central node, a sensing function (SF) network element, or a sensing management function (SMF) network element. The central node can be a node that configures sensing parameters for the transmitting or receiving end of the sensing signal, and/or a node that aggregates sensing results. The central node can be a network device or a chip within a network device; of course, the central node can also be other types of devices. The SF network element/SMF network element can be a network element used for sensing function management, and its function and form can be the same as or similar to that of the central node. In this application, the second communication device can be a transmitting node, a receiving node, or a sensing node; wherein, a transmitting node refers to a node used to transmit sensing signals, also known as a transmitter, and a receiving node refers to a node used to receive the echo signals of the sensing signals, also known as a receiver. A sensing node refers to a node that integrates the transmitting end of the sensing signals and the receiving end of the echo signals into one unit. In this application, the transmitting node, receiving node, or sensing node can all be access network equipment or chips in access network equipment, terminal equipment or chips in terminal equipment. In this application, coherent fusion refers to the fusion of coherent signals, wherein the coherent signal is a signal that satisfies the coherence condition, which includes at least one of the following: the vibration direction is the same, the vibration frequency is the same, the phase is the same, or the phase difference remains constant. In this application, incoherent fusion refers to the fusion of incoherent signals, wherein an incoher