Deformation sensing method and communication apparatus

Abstract

A deformation sensing method and a communication apparatus. The method comprises: a first node sending a sensing signal; a second node receiving the sensing signal, and obtaining at least one sub-signal of the sensing signal, which sub-signal reaches the second node by means of at least one transmission path; the second node sending to a sensing node first information for indicating a first phase, which is the phase of a first sub-signal among the at least one sub-signal, or is the phase difference between the first sub-signal and a second sub-signal among the at least one sub-signal, wherein the first sub-signal is a sub-signal of the sensing signal that is reflected by a sensed point on a sensed body and then reaches the second node, and the second sub-signal is a sub-signal of the sensing signal that reaches the second node by means of a reference path among the at least one transmission path; and on the basis of the first phase and a reference phase, the sensing node determining whether the sensed body has deformed. The method reduces deformation measurement costs and improves the timeliness of acquiring the deformation of the sensed body.

Description

Deformation sensing method and communication device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 2, 2023, with application number 202311451077.6 and application name “Deformation Sensing Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and more specifically, to a deformation sensing method and a communication device. Background Art

[0003] Infrastructure such as bridges and buildings require regular deformation testing to maintain their safety. Traditional manual deformation inspections require significant manpower and resources, and the accuracy of these inspections cannot be guaranteed.

[0004] Currently, micro-deformations of infrastructure can be detected using laser interferometers or millimeter-wave interferometers. However, the maintenance and measurement costs of high-precision interferometers are high, and manual labor is required to regularly move the interferometer to the vicinity of the target to be measured for measurement, resulting in poor timeliness in obtaining the deformation of the target to be measured.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a deformation sensing method and a communication device, which can reduce the deformation measurement cost and improve the timeliness of obtaining deformation of a sensed object.

[0007] In a first aspect, a deformation sensing method is provided, comprising: a first node sending a sensing signal. A second node receives the sensing signal and obtains at least one sub-signal of the sensing signal reaching the second node via at least one transmission path. The second node sends first information to a sensing node, where the first information indicates a first phase, where the first phase is the phase of a first sub-signal in the at least one sub-signal, or the first phase is the phase difference between the first sub-signal and the second sub-signal in the at least one sub-signal, wherein the first sub-signal is the sub-signal of the sensing signal reaching the second node after being reflected by a sensing point on the sensing object, and the second sub-signal is the sub-signal of the sensing signal reaching the second node via a reference path in the at least one transmission path. The sensing node determines whether the sensing object has deformed based on the first phase and the reference phase.

[0008] The above solution can leverage wireless communication nodes in existing mobile communication networks to detect deformation of objects using wireless signals. This allows for real-time, automated deformation sensing of objects such as infrastructure. This reduces the cost of deformation measurement and improves the timeliness of obtaining deformation data, enabling timely maintenance of infrastructure such as bridges and buildings.

[0009] In conjunction with the first aspect, in certain implementations of the first aspect, the method further includes: the sensing node sending second information to the first node, the second information being used to request the first node to perform a sensing measurement of the perceived object, the second information including location information of a sensed point on the perceived object; and the first node sending third information to the sensing node, the third information being used to determine whether to perform the sensing measurement, the third information further being used to indicate configuration information of the sensing signal.

[0010] According to the above scheme, the sensing node can configure the first node to perform sensing measurement, so that the first node determines the position of the sensed point according to the configuration of the sensing node, thereby determining the resource configuration of the sensing signal (such as one or more of time domain resources, frequency domain resources or spatial domain resources), and feeds back to the sensing node so that the sensing node notifies the receiving end of the sensing signal (i.e., the second node), so that the first node and the second node can realize sensing measurement of whether the sensed object is deformed through the sensing measurement configuration of the sensing node.

[0011] In conjunction with the first aspect, in certain implementations of the first aspect, the method further includes: sending, by the sensing node, fourth information to the second node, where the fourth information is used to configure the second node to perform sensing measurement, and the fourth information is used to indicate one or more of the following information:

[0012] Configuration information of the perception signal, receiving beam information of the perception signal, information of the perceived point, information of the reference path, or position information of a reference point in the reference path that reflects the perception signal.

[0013] According to the above solution, the sensing node can configure the second node to perform sensing measurement, so that the second node determines information of the sensing signal and information of the sensed point according to the configuration of the sensing node, thereby performing sensing measurement by receiving the sensing signal.

[0014] In conjunction with the first aspect, in certain implementations of the first aspect, the sensing node determining whether the sensed object has deformed based on the first phase and the reference phase includes: determining, by the sensing node, whether the sensed point has moved based on the phase difference between the first phase and the reference phase and the wavelength of the sensing signal. If the sensed point has moved, then the sensed object has deformed; if the sensed point has not moved, then the sensed object has not deformed.

[0015] According to the above solution, the sensing node can determine whether the sensed object has shifted based on the first phase fed back by the second node, thereby determining whether the sensed object has deformed. This allows sensing and measuring whether the sensed object has deformed using wireless signals in a mobile communication system.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the method further includes: when the sensing node determines that the sensed point has displaced and the displacement is greater than or equal to a threshold value, sending an alarm message.

[0017] According to the above solution, the sensing node determines whether the sensed object has deformed based on the sensing signal fed back by the second node. If deformation occurs, it sends an alarm message. For example, the sensing node can send the alarm message to the administrator terminal so that the administrator can promptly notify the administrator of the deformation of the sensed point through the alarm message received by the terminal.

[0018] In combination with the first aspect, in certain implementations of the first aspect, the reference path is a direct signal path between the first node and the second node; or, the reference path is a transmission path of the perception signal from the first node to the second node after reflection through the reference point.

[0019] According to the above scheme, the first phase is the phase difference between the first and second sub-signals. The reference path can be a direct signal path or a transmission path through a preset reference point before reaching the second node. Because each transmission path of the perceived signal has the same or similar systematic errors, subtracting the phase of the first and second sub-signals can offset these systematic errors, thereby improving the accuracy of deformation perception.

[0020] In combination with the first aspect, in some implementations of the first aspect, the first node and the second node are different nodes of the same access network device; or, the first node and the second node are nodes of different access network devices.

[0021] In combination with the first aspect, in some implementations of the first aspect, the perception node is a core network node, or the perception node and the second node are different nodes of the same access network device.

[0022] The solution provided in this application can be applied to a variety of deployment scenarios to achieve deformation perception measurement of the perceived object.

[0023] In a second aspect, a deformation sensing method is provided, which can be executed by a communication device or a module (such as a chip or chip module) configured in (or used for) a communication device. The following description takes the execution of the method by the second node as an example.

[0024] The method includes: a second node receives a perception signal from a first node, and obtains at least one sub-signal of the perception signal reaching the second node via at least one transmission path; the second node sends first information to the perception node, where the first information is used to indicate a first phase, and the first phase is used to determine whether the perceived object is deformed. The first phase is the phase of a first sub-signal in the at least one sub-signal, or the first phase is the phase difference between the first sub-signal and the second sub-signal in the at least one sub-signal, wherein the first sub-signal is a sub-signal of the perception signal reaching the second node after being reflected by a perceived point on the perceived object, and the second sub-signal is a sub-signal of the perception signal reaching the second node via a reference path in the at least one transmission path.

[0025] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: the second node receiving second information from the sensing node, where the second information is used to configure the second node to perform sensing measurement, and the second information is used to indicate one or more of the following information:

[0026] Configuration information of the perception signal, receiving beam information of the perception signal, information of the perceived point, information of the reference path, or position information of a reference point in the reference path that reflects the perception signal.

[0027] In combination with the second aspect, in certain implementations of the second aspect, the reference path is a direct signal path between the first node and the second node; or, the reference path is a transmission path of the perception signal from the first node to the second node after reflection through the reference point.

[0028] In combination with the second aspect, in some implementations of the second aspect, the first node and the second node are different nodes of the same access network device; or, the first node and the second node are nodes of different access network devices.

[0029] In combination with the second aspect, in some implementations of the second aspect, the perception node is a core network node, or the perception node and the second node are different nodes of the same access network device.

[0030] In a third aspect, a deformation sensing method is provided, which can be executed by a communication device or a module (such as a chip or chip module) configured in (or used for) a communication device. The following description takes a sensing node as an example.

[0031] The method includes: a sensing node receiving first information from a second node, the first information indicating a first phase, the first phase being the phase of a first sub-signal, or the first phase being the phase difference between the first sub-signal and the second sub-signal, wherein the first sub-signal is a sub-signal received by the second node from a sensing signal from the first node and reflected by a sensing point on a sensed object before reaching the second node, and the second sub-signal is a sub-signal of the sensing signal received by the second node from the first node after reaching the second node via a reference path between the first and second nodes. The sensing node determines whether the sensed object has deformed based on the first phase and the reference phase.

[0032] In combination with the third aspect, in certain implementations of the third aspect, the method further includes: the perception node sends second information to the first node, the second information is used to request the first node to perform perception measurement of the perceived object, and the second information includes location information of the perceived point on the perceived object; the perception node receives third information from the first node, the third information is used to determine to perform the perception measurement, and the third information is also used to indicate resource configuration information of the perception signal.

[0033] In conjunction with the third aspect, in certain implementations of the third aspect, the method further includes: the sensing node sending fourth information to the second node, where the fourth information is used to configure the second node to perform sensing measurement, and the fourth information is used to indicate one or more of the following information:

[0034] Configuration information of the perception signal, receiving beam information of the perception signal, information of the perceived point, information of the reference path, or position information of a reference point in the reference path that reflects the perception signal.

[0035] In combination with the third aspect, in certain implementations of the third aspect, the sensing node determines whether the sensed object has been deformed based on the first phase and the reference phase, including: the sensing node determines whether the sensed point has been displaced based on the phase difference between the first phase and the reference phase, and the wavelength of the sensing signal, wherein if the sensed point has been displaced, the sensed object has been deformed; if the sensed point has not been displaced, the sensed object has not been deformed.

[0036] In combination with the third aspect, in certain implementations of the third aspect, the method further includes: when the sensing node determines that the sensed point has displaced and the displacement is greater than or equal to a threshold value, sending an alarm message.

[0037] In combination with the third aspect, in certain implementations of the third aspect, the reference path is a direct signal path between the first node and the second node; or, the reference path is a transmission path of the perception signal from the first node to the second node after reflection through the reference point.

[0038] In a fourth aspect, a communication device is provided. In one design, the device may include a module corresponding to the method, operation, step, or action described in the first aspect or any embodiment of the first aspect. The module may be implemented as hardware circuitry, software, or a combination of hardware circuitry and software. In one design, the device includes: a transceiver unit configured to receive a sensing signal from a first node and obtain at least one sub-signal of the sensing signal reaching a second node via at least one transmission path. A processing unit configured to determine first information, the first information indicating a first phase, the first phase being used to determine whether the sensed object has deformed. The first phase is the phase of a first sub-signal in the at least one sub-signal, or the first phase is the phase difference between the first and second sub-signals in the at least one sub-signal. The first sub-signal is the sub-signal of the sensing signal reaching the second node after being reflected from a sensed point on the sensed object, and the second sub-signal is the sub-signal of the sensing signal reaching the second node via a reference path in the at least one transmission path. The transceiver unit is further configured to send the first information to the sensing node.

[0039] In conjunction with the fourth aspect, in certain implementations of the fourth aspect, the transceiver unit is configured to receive second information from the sensing node, where the second information is used to configure the second node to perform sensing measurement, and the second information is used to indicate one or more of the following information:

[0040] Configuration information of the perception signal, receiving beam information of the perception signal, information of the perceived point, information of the reference path, or position information of a reference point in the reference path that reflects the perception signal.

[0041] In a fifth aspect, a communication device is provided. In one design, the device may include a module corresponding to each of the methods, operations, steps, and actions described in the second aspect or any embodiment of the second aspect. The module may be implemented as a hardware circuit, software, or a combination of hardware circuits and software. In one design, the device includes: a transceiver unit configured to receive first information from a second node, the first information indicating a first phase, the first phase being the phase of a first sub-signal, or the first phase being the phase difference between the first sub-signal and the second sub-signal, wherein the first sub-signal is a sub-signal of a sensing signal received by the second node from the first node and reflected from a sensing point on a sensed object to reach the second node, and the second sub-signal is a sub-signal of the sensing signal received by the second node from the first node and reached the second node via a reference path between the first and second nodes. A processing unit is configured to determine whether the sensed object has deformed based on the first phase and the reference phase.

[0042] In conjunction with the fifth aspect, in certain implementations of the fifth aspect, the transceiver unit is further configured to send second information to the first node, the second information being used to request the first node to perform a perception measurement of the perceived object, the second information including location information of a perceived point on the perceived object. Furthermore, the transceiver unit is further configured to receive third information from the first node, the third information being used to determine whether to perform the perception measurement, the third information further being used to indicate configuration information of the perception signal.

[0043] In conjunction with the fifth aspect, in some implementations of the fifth aspect, the transceiver unit is further configured to send fourth information to the second node, where the fourth information is used to configure the second node to perform perception measurement, and the fourth information is used to indicate one or more of the following information:

[0044] Configuration information of the perception signal, receiving beam information of the perception signal, information of the perceived point, information of the reference path, or position information of a reference point in the reference path that reflects the perception signal.

[0045] In conjunction with the fifth aspect, in certain implementations of the fifth aspect, the processing unit is specifically configured to determine whether the sensed point has shifted based on the phase difference between the first phase and the reference phase, and the wavelength of the sensed signal. If the sensed point has shifted, then the sensed object has deformed; if the sensed point has not shifted, then the sensed object has not deformed.

[0046] In combination with the fifth aspect, in certain implementations of the fifth aspect, the transceiver unit is further configured to send an alarm message when it is determined that the sensed point has moved and the displacement is greater than or equal to a threshold value.

[0047] In a sixth aspect, a communication device is provided, comprising a processor. The processor can implement the method in any possible implementation of the first to sixth aspects and the first to sixth aspects. Optionally, the communication device further includes a memory, the processor is coupled to the memory, and can be used to execute instructions in the memory to implement the method in any possible implementation of the first to sixth aspects and the first to sixth aspects. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface. In an embodiment of the present application, the communication interface can be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interfaces, without limitation.

[0048] In one implementation, the communication apparatus is a communication device (such as a terminal device or an access network device). When the communication apparatus is a communication device, the communication interface may be a transceiver or an input / output interface.

[0049] In another implementation, the communication device is a chip configured in a communication device. When the communication device is a chip configured in a communication device, the communication interface may be an input / output interface.

[0050] Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0051] In a seventh aspect, a processor is provided, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method of the second to third aspects and any possible implementation of the second to third aspects.

[0052] In a specific implementation, the processor may be one or more chips, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, or various logic circuits. The input signal received by the input circuit may be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter. The input circuit and the output circuit may be the same circuit, which functions as an input circuit and an output circuit at different times. The embodiments of the present application do not limit the specific implementation of the processor and various circuits.

[0053] In an eighth aspect, a computer program product is provided, which includes: a computer program (also referred to as code, or instructions), which, when executed, enables a computer to execute the method in the above-mentioned second to third aspects and any possible implementation of the second to third aspects.

[0054] In the ninth aspect, a computer-readable storage medium is provided, which stores a computer program (also referred to as code, or instructions). When the computer program is run on a computer, the computer executes the method in the above-mentioned second to third aspects and any possible implementation of the second to third aspects.

[0055] In a tenth aspect, a communication system is provided, comprising at least one of the aforementioned second nodes and at least one of the aforementioned sensing nodes. Optionally, the communication system further comprises at least one of the aforementioned first nodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] FIG1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

[0057] FIG2 is a schematic flow chart of a deformation sensing method provided in an embodiment of the present application;

[0058] FIG3 is a schematic diagram of an application scenario 1 of the deformation sensing method provided in an embodiment of the present application;

[0059] FIG4 is a schematic diagram of application scenario 2 of the deformation perception method provided in an embodiment of the present application;

[0060] FIG5 is a schematic structure of a communication device provided in an embodiment of the present application;

[0061] FIG6 is another schematic structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0062] The technical solution in this application will be described below with reference to the accompanying drawings.

[0063] In the embodiments of this application, " / " can indicate that the objects associated with each other are in an "or" relationship. For example, A / B can mean A or B. "And / or" can be used to describe the existence of three relationships between the associated objects. For example, "A and / or B" can mean: A exists alone, A and B exists simultaneously, and B exists alone. A and B can be singular or plural. To facilitate the description of the technical solutions of the embodiments of this application, the words "first" and "second" can be used to distinguish them in the embodiments of this application. The words "first" and "second" do not limit the quantity or order of execution, and the words "first" and "second" do not necessarily mean different. In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. The use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete way to facilitate understanding. In the embodiments of the present application, at least one (kind) can also be described as one (kind) or multiple (kinds), and multiple (kinds) can be two (kinds), three (kinds), four (kinds) or more (kinds), and this application does not limit it.

[0064] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: long term evolution (LTE) systems, such as LTE frequency division duplex (FDD) systems or LTE time division duplex (TDD), or to fifth generation (5G) communication systems, such as new radio (NR) systems in 5G, or to future communication systems (such as sixth generation (6G) communication systems), or systems that integrate multiple communication systems, etc., and the embodiments of the present application are not limited.

[0065] Figure 1 is a diagram of the communication system architecture applicable to an embodiment of the present application. As shown in Figure 1, in this communication system, user equipment (UE) can be connected to the radio access network via the next-generation NodeB (ng-eNB) and gNB respectively through the LTE-Uu and / or NR-Uu interfaces; the radio access network is connected to the core network via the access and mobility management function (AMF) node through the NG-C interface. Among them, the next-generation radio access network (NG-RAN) includes one or more ng-eNBs; the NG-RAN may also include one or more gNBs; and the NG-RAN may also include one or more ng-eNBs and gNBs. The ng-eNB is an LTE base station accessing the 5G core network, and the gNB is a 5G base station accessing the 5G core network. The core network may include functional nodes such as the AMF node and the location management function (LMF) node. Among them, the AMF node is used to implement functions such as access management, and the LMF node is used to implement functions such as positioning. The AMF node and the LMF node are connected via the NL1 interface. The LMF is used to provide different types of location services for UEs, including but not limited to UE positioning and delivery of assistance data to the UE. The control plane of the LMF is the enhanced serving mobile location center (E-SMLC), which is used to manage the coordination and scheduling of resources required for UE location. The user plane of the LMF is the secure user plane location (SUPL) location platform (SLP), which can interact and transmit on the user plane through the SUPL protocol. A UE that supports SUPL can be called a SET.

[0066] It should be understood that Figure 1 is only a schematic diagram of the communication system architecture of an embodiment of the present application, but the present application is not limited to this. The communication method provided in the embodiment of the present application can also be applied to other communication system architectures.

[0067] The access network node provided in the embodiments of the present application may be located in a radio access network (RAN). Sometimes referred to as an access network device, a RAN entity, or an access node, it constitutes part of a communication system and can be used to assist terminals in achieving wireless access. A RAN may include multiple access network nodes, which may be of the same or different types. This application does not limit the specific technology or device form used by the access network node.

[0068] In one possible scenario, the access network node may be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a sixth generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. The access network node may be a macro base station (such as 110a in FIG1 ), a micro base station or an indoor station (such as 110b in FIG1 ), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the access network node may also be a server, a wearable device, a vehicle or an onboard device, etc. For example, the access network device in the vehicle to everything (V2X) technology may be a road side unit (RSU). All or part of the functions of the access network node in this application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform). The access network node in this application may also be a logical node, a logical module or software that can implement all or part of the access network node functions.

[0069] In another possible scenario, multiple access network nodes collaborate to assist the terminal in achieving wireless access, and different access network nodes respectively implement part of the functions of the base station. For example, the access network node can be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU can be set separately, or they can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0070] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, this application uses CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0071] Since the maintenance and measurement costs of high-precision interferometers are high, and the interferometer needs to be manually moved to the vicinity of the target to be measured for measurement on a regular basis, the timeliness of obtaining the deformation of the target to be measured is poor. To address this problem, this application proposes that the deformation of the target to be measured can be sensed based on wireless signals using mobile communication networks. Since mobile communication networks have achieved wide coverage, the use of wireless signals for sensing can achieve real-time, automated deformation sensing of infrastructure targets to be measured (referred to as sensed objects in the embodiment). This reduces the cost of measuring deformation, improves the timeliness of obtaining the deformation of the target to be measured, and enables timely safety maintenance of infrastructure such as bridges and buildings.

[0072] Figure 2 is a schematic flow chart of a deformation sensing method 200 provided in an embodiment of the present application. As shown in Figure 2 , the method includes a first node, a second node, and a sensing node. The first node is the node that sends the sensing signal, and the second node is the node that receives the sensing signal. The sensing node determines whether the sensed object has deformed based on the transmission of the sensing signal from the first node to the sensed object and then to the second node.

[0073] The first node and the second node may be access network nodes. In one implementation, the first node and the second node belong to different access network devices, such as the first node belongs to a first access network device and the second node belongs to a second access network device, and the access network device may be a base station, such as an eNB or a gNB. In another implementation, the first node and the second node belong to the same access network device, such as the first node and the second node may be respectively a transmitting antenna (or antenna array, panel, etc.) and a receiving antenna (or antenna array, panel, etc.) of an access network device, or the first node and the second node may be respectively different DUs or RUs of an access network device. When the first node and the second node belong to the same access network device, the first node and the second node may be located at the same location or different locations, such as the first node and / or the second node may be a remote unit of the access network node.

[0074] The perception node may be a core network node, for example, a device or component providing perception functionality within the core network, such as an AMF node or LMF node. Alternatively, the perception node may belong to an access network device, for example, the perception node and the second node may belong to the same access network device, or the first node, the second node, and the perception node may belong to the same access network device. In other words, a single access network device may be used to sense whether a perceived object has deformed. For example, the first node and / or the second node may be a DU or RU of an access network device, and the perception node may be a node in the access network device that has data processing capabilities.

[0075] This application does not impose any restrictions on the specific implementation forms of the first node, the second node and the perception node.

[0076] The deformation sensing method 200 shown in FIG. 2 includes but is not limited to the following S201 to S204 .

[0077] S201: The first node sends a perception signal.

[0078] Exemplarily, the perception signal may be a pilot signal (or reference signal), and the sequence for generating the pilot signal is known to the first node and the second node. For example, the first node and the second node may learn the sequence for generating the pilot signal from an LMF node. Alternatively, the first node and the second node may reach a consensus on the sequence for generating the pilot signal through information exchange. This application is not limited to this.

[0079] S202: The second node receives a perception signal from the first node, and obtains at least one sub-signal of the perception signal that reaches the second node through at least one transmission path.

[0080] The at least one transmission path includes at least a transmission path in which the perception signal is transmitted from the first node to the perceived point on the perceived object, and then reflected by the perceived point to reach the second node. This transmission path can be called a first transmission path, and the sub-signal transmitted through the first transmission path is called a first sub-signal.

[0081] Depending on the deployment methods of the first and second nodes in the specific implementation, the following scenarios can be used:

[0082] Scenario 1: The first and second nodes are deployed at different locations. For example, as shown in Figure 3, after the first node transmits a sensing signal, one transmission path for the sensing signal is to reflect from a sensed point on a sensed object before reaching the second node. Alternatively, the sensing signal can also reach the second node from the first node via a direct signal path without being reflected from other objects, and / or the sensing signal can reach the second node after being reflected from other objects, such as by reflecting from a reference point as shown in Figure 3.

[0083] In Scenario 1, the first and second nodes can belong to the same access network device but be deployed at different locations. Alternatively, the first and second nodes can belong to different access network devices. For details, please refer to the previous description. When the first and second nodes belong to different access network devices (such as base stations), the deformation sensing method of the perceived object can be called a multi-station sensing method.

[0084] Scenario 2: The first and second nodes are deployed at the same location, as shown in Figure 4. After the first node sends a sensing signal, it is transmitted from the first node to the sensed point of the sensed object. After reflecting from the sensed point, the signal returns along the original path to the second node. Optionally, the sensing signal can also be reflected from other objects before reaching the second node, such as by reflecting from the reference point shown in Figure 4.

[0085] In scenario 2, the first node and the second node may be nodes belonging to the same access network device. When the first node and the second node belong to the same access network device (such as a base station), the deformation sensing method of the perceived object may be called a single-station sensing method.

[0086] The sensed point is located at a preset position on the sensed object. For example, a corner reflector may be installed at the sensed point, which can make the sub-signals of the reflected sensing signal have stronger energy, thereby improving the reception reliability of the sensing signal by the second node.

[0087] In one optional implementation, the second node is aware of the location of the sensed point and can use a receive beam in the corresponding direction to receive sub-signals of the sensed signal reflected by the sensed point. This can improve the reliability of the second node's reception of the sensed signal. For example, the second node can obtain the sensed point's location information from the sensing node, or the sensed point's location information can be preconfigured.

[0088] Optionally, the first node may know the location of the sensed point and may use a transmit beam in the corresponding direction to send a sensing signal to the sensed point. This ensures that the signal energy reaching the sensed point is stronger, allowing the sensed point to reflect a sub-signal of the stronger sensing signal, thereby improving the reliability of the second node's reception of the sensing signal.

[0089] In an optional implementation, the second node may obtain configuration information of the perception signal (or pilot configuration information) from the first node or the perception node, and the second node may receive the perception signal according to the configuration information of the perception signal.

[0090] For example, the configuration information may include, but is not limited to, one or more of the following information:

[0091] The sequence information used by the perception signal, the time domain resources and / or frequency domain resources used to carry the perception signal, or the transmission period of the perception signal.

[0092] Optionally, the second node may also obtain configuration information of a receiving / transmitting beam of a perception signal and / or indication information for indicating whether to adopt a single-station perception method or a multi-station perception method from the first node or the perception node.

[0093] S203. The second node sends first information to the perception node, where the first information is used to indicate a first phase. The first phase is the phase of a first sub-signal in at least one sub-signal, or the first phase is the phase difference between the first sub-signal and the second sub-signal in at least one sub-signal. The first sub-signal is a sub-signal that is obtained by the perception signal being reflected from a perceived point on the perceived object and reaching the second node. The second sub-signal is a sub-signal that is obtained by the perception signal being reflected from a reference path in the at least one transmission path and reaching the second node.

[0094] In S202 , the second node receives at least one sub-signal of the perception signal that reaches the second node via at least one transmission path, including a first sub-signal that reaches the second node via a first transmission path.

[0095] In the first embodiment, the second node can determine the phase θ of the first sub-signal s(t), the second node may send first information to the sensing node, the first information being used to indicate the phase of the first sub-signal, that is, in the first embodiment, the first phase θ1(t) is the phase θ of the first sub-signal s (t), θ1(t)=θ s (t). Accordingly, the sensing node receives the first information from the second node, obtains the phase of the first sub-signal, and can determine whether the sensed object has deformed. For a specific implementation, please refer to the description in S204 below.

[0096] In the second embodiment, the at least one sub-signal acquired by the second node also includes a second sub-signal transmitted to the second node via the reference path, and the second node can determine the phase θ of the first sub-signal. s (t) and the phase θ of the second sub-signal ref (t), and then determine the phase difference Δθ(t) between the first sub-signal and the second sub-signal, which satisfies: Δθ(t) = θ s (t)-θ ref (t).

[0097] Since each transmission path of the perception signal has the same or similar systematic error, subtracting the phase of the first sub-signal from the phase of the second sub-signal can offset the systematic error, thereby improving the accuracy of deformation perception.

[0098] The second node sends the first information to the sensing node, where the first information is used to indicate the phase difference Δθ(t) between the first sub-signal and the second sub-signal. That is, in the second embodiment, the first phase θ1(t) is the phase difference Δθ(t), θ1(t)=θ ref (t). After the sensing node obtains the phase difference through the first information, it can determine whether the sensed object has deformed. For a specific implementation, please refer to the description in S204 below.

[0099] In Example 1, the reference path may be a direct path of the sensing signal between the first node and the second node, as shown in FIG3 .

[0100] In Example 2, the reference path can be a transmission path for the perception signal to be transmitted from the first node to the second node after being reflected from the reference point. This path can be called a second transmission path, such as the reference path for the perception signal reflected from the reference point shown in Figure 3 or Figure 4.

[0101] The second node is aware of the location of the reference point. In an optional embodiment, the second node may obtain the location information of the reference point from the sensing node. The second node may determine the location of the reference point based on the location information, thereby determining the second sub-signal from multiple sub-signals of the sensing signal received from multiple transmission paths.

[0102] Exemplarily, the location information may include but is not limited to the relative delay or relative delay range of the sub-signal reflected by the reference point compared to the sub-signal of the direct path, or the absolute position coordinates of the reference point, or the position coordinates of the reference point compared to the second node.

[0103] In an optional implementation, the second node may obtain indication information from the sensing node, the indication information being used to indicate whether to use a direct path or a path reflected from a reference point as the reference path. The second node may determine the reference path based on the indication information.

[0104] S204: The sensing node determines whether the sensed object is deformed according to the first phase and the reference phase.

[0105] After acquiring the first phase in S203 , the sensing node may determine whether the sensed object is deformed based on the first phase and the reference phase.

[0106] In one example, the first phase is the phase of the first sub-signal. The reference phase may be the signal phase when the sensed object is not deformed, or the reference phase may be the phase of a sub-signal of the sensed signal from the second node at time t0 transmitted from the first transmission path, obtained by the sensing node from the second node before obtaining the first phase. For example, the reference phase may be the phase of the sub-signal obtained by the second node when receiving the sensed signal initially transmitted by the first node, which then reaches the second node via the first transmission path. Alternatively, the reference phase may be the phase of the sub-signal from the first transmission path obtained by the second node when receiving the sensed signal initially transmitted by the first node before obtaining the first phase.

[0107] In another example, the first phase is the phase difference between the first sub-signal and the second sub-signal. The reference phase may be the phase difference between the sub-signals transmitted via the first transmission path and the reference transmission path when the sensed object is not deformed. Alternatively, the reference phase may be the phase difference between the sub-signals transmitted via the first transmission path and the second transmission path, as acquired by the second node at time t0 before the sensing node acquires the first phase.

[0108] Specifically, the sensing node can determine whether there is a phase deformation amount according to the first phase θ1(t) and the reference phase θ(t0). The phase deformation satisfy:

[0109]

[0110] like If it is non-zero, it means that there is phase deformation, and the sensing node can determine that the perceived object has deformed. and the wavelength λ of the sensing signal, the distance deformation Δd(t) can be determined, which satisfies:

[0111] The distance deformation Δd(t) is the displacement of the sensed point caused by the deformation of the sensed object.

[0112] In an optional implementation, when the sensing node determines that the sensed point has shifted (ie, Δd(t) or If the displacement of the sensed point (i.e., the distance deformation Δd(t)) is greater than or equal to the threshold value (when Δd(t) is non-zero), the sensing node sends an alarm message. For example, the sensing node can send the alarm message to the administrator terminal so that the administrator can promptly notify the administrator of the deformation of the sensed point through the alarm information obtained by the terminal.

[0113] The above solution can leverage wireless communication nodes in existing mobile communication networks to detect deformation of objects using wireless signals. This allows for real-time, automated deformation sensing of objects such as infrastructure. This reduces the cost of deformation measurement and improves the timeliness of obtaining deformation data, enabling timely maintenance of infrastructure such as bridges and buildings.

[0114] In an optional implementation, before S201 in the embodiment shown in Figure 2, the first node, the second node and the perception node can interact with each other to implement the perception measurement configuration, and the first node, the second node and the perception node perform the deformation perception measurement shown in Figure 2 according to the perception measurement configuration.

[0115] Specifically, during the sensing measurement configuration process, the sensing node may send second information to the first node, requesting the first node to perform sensing measurements on the perceived object. The second information may include location information of a sensed point on the perceived object. In response, the first node receives third information from the sensing node, which may be a response to the second information and confirms the performance of the sensing measurement on the perceived object. The third information may also indicate resource configuration information for the sensing signal.

[0116] The sensing node may request the first node to perform a sensing measurement through the second information and provide the location information of the sensed point on the perceived object of the sensing measurement. The first node may determine whether to accept the sensing measurement based on the second information. For example, the first node may determine whether to accept the request to perform the sensing measurement based on the current service busyness, wireless resource utilization, or the location relationship with the perceived object. If the first node accepts the sensing measurement request, the first node may perform resource configuration to allocate resources for the sensing signal transmitted when performing the sensing measurement, such as the sequence used, the time domain resources, frequency domain resources, or spatial domain resources (such as the transmission beam) carrying the sensing signal. The first node may also determine the transmission period of the sensing signal. The first node may send third information to the sensing node to notify the first node of the resource configuration information determined for the sensing signal through the third information.

[0117] During the perception measurement process, the perception node may send fourth information to the second node, where the fourth information is used to configure the second node to perform the perception measurement. The fourth information may be used to indicate one or more of the following information:

[0118] Resource configuration information of the sensing signal, receiving beam information of the sensing signal, information of the sensed point, information of the reference path, or position information of the reference point that reflects the sensing signal in the reference path.

[0119] The resource configuration information of the sensing signal may include one or more of the sequence used by the sensing signal, the time domain resources carrying the sensing signal, the frequency domain resources, and the transmission period of the sensing signal. The receiving beam information of the sensing signal may include an identifier of the receiving beam, and the sensing node may use this receiving beam information to inform the second node which specific receiving beam to use to receive the sensing signal. The information of the sensed point may include the location information of the sensed point, such as the absolute or relative position coordinates of the sensed point. Alternatively, the information of the sensed point may include the identifier of one of multiple preconfigured sensed points, and the second node may determine the location of the sensed point based on the identifier and the preconfigured information. The information of the reference path may indicate whether the reference path is a direct path or a second transmission path. The location information of the reference point may include the absolute or relative position coordinates of the reference point, or the identifier of one of multiple preconfigured reference points. In an optional embodiment, the fourth information further indicates the type of phase parameter fed back by the second node to the sensing node, such as the fourth information indicating that the second node feeds back the phase of the first transmission path, or the phase difference between the signals of the first and second transmission paths. When the fourth information indicates that the second node is feeding back a phase difference between signals on the first transmission path and signals on the second transmission path, the fourth information may include location information of a reference point on the reference path that reflects the sensing signal. However, the present application is not limited thereto, and the type of phase parameter fed back by the second node to the sensing node may be predefined.

[0120] Accordingly, the second node receives the fourth information from the sensing node, receives the sensing signal based on the fourth information, determines the first phase, and then sends sensing measurement information (i.e., an example of the first information) to the sensing node. The sensing measurement information indicates the first phase. Optionally, the sensing measurement information further includes one or more of time information corresponding to the first phase, resource information of the sensing signal, or information of the sensed point.

[0121] Optionally, before sending the fourth information to the second node, the perception node may send request information to the second node to request the second node to perform perception measurement. If the second node confirms receipt of the request, the second node sends response information to the perception node to confirm receipt of the request, so that the perception node can send the fourth information to the second node.

[0122] It should be understood that the present application is not limited to the above implementation. The sensing node may instruct the first node and the second node to perform sensing measurement, and the first node and the second node may reach a consensus on resource configuration of the sensing signal through information exchange.

[0123] In the present application, the perception node may be a functional node in the core network, such as the perception node may be an AMF node or an LMF node. When the perception node is an LMF node, the interaction information between the perception node and the first node and the second node may be carried in a positioning protocol appendix message, such as the positioning protocol appendix message may be an LTE positioning protocol annex (LTE positioning protocol annex, LPPa) message or an NR positioning protocol annex (NR positioning protocol annex, NRPPa) message. Specifically, the request information (such as the above-mentioned second information) sent by the perception node to the first node and the second node may be an NRPPa positioning information request (NRPPa message-Positioning information request) message, and the response information (such as the above-mentioned third information and fourth information) sent by the first node and the second node to the perception node may be an NRPPa positioning information response (NRPPa message-Positioning information response) message. However, the present application is not limited to this.

[0124] In other implementations, the sensing node may also be a node in the access network. For example, the sensing node may be an access network node independent of the first node and the second node, or the sensing node may belong to the same access network device as the first node or the second node, or the sensing node, the first node, and the second node may belong to the same access network device. This application does not limit the specific deployment form.

[0125] It is understandable that in order to implement the functions of each node in the above embodiments, the communication device may include hardware structures and / or software modules that perform the corresponding functions. Those skilled in the art should readily appreciate that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a computer software-driven hardware manner depends on the specific application scenario and design constraints of the technical solution.

[0126] Figures 5 and 6 are schematic diagrams of the structures of possible communication devices provided in embodiments of the present application. These communication devices can be used to implement the functions of the first node, the second node, or the perception node in the above-mentioned method embodiments, and thus can also achieve the beneficial effects possessed by the above-mentioned method embodiments. In the embodiments of the present application, the communication device can be an NG-RAN node as shown in Figure 1, or a core network node as shown in Figure 1, such as an AMF node or LMF node, or a module (such as a chip or chip system) applied to an access network device or implementing corresponding functions of the core network.

[0127] The communication device 500 includes a transceiver unit 520, which can be used to receive or send information. The communication device 500 can also include a processing unit 510, which can be used to process instructions or data to implement corresponding operations.

[0128] It should be understood that when the communication device 500 is a chip configured in (or used in) a communication device, the transceiver unit 520 in the communication device 500 can be the input / output interface or circuit of the chip, and the processing unit 510 in the communication device 500 can be the processor in the chip.

[0129] Optionally, the communication device 500 may further include a storage unit 530 (not shown), which may be used to store instructions or data. The processing unit 510 may execute the instructions or data stored in the storage unit to enable the communication device to perform corresponding operations.

[0130] The communication device 500 can be used to implement the functions of the first node, the second node or the sensing node in the method embodiment shown in FIG. 2 .

[0131] When the communication device 500 is used to implement the functions of the second node in the method embodiment shown in FIG2 , the transceiver unit 520 is configured to receive a sensing signal from the first node and obtain at least one sub-signal of the sensing signal reaching the second node via at least one transmission path. The processing unit 510 is configured to process first information, where the first information indicates a first phase, which is used to determine whether the sensed object has deformed. The first phase is the phase of a first sub-signal in the at least one sub-signal, or the first phase is the phase difference between a first sub-signal and a second sub-signal in the at least one sub-signal. The first sub-signal and the second sub-signal in the at least one sub-signal are: the first sub-signal is the sub-signal of the sensing signal reaching the second node after being reflected from a sensed point on the sensed object, and the second sub-signal is the sub-signal of the sensing signal reaching the second node via a reference path in the at least one transmission path. The transceiver unit 520 is further configured to send the first information to the sensing node.

[0132] When the communication device 500 is used to implement the functions of a sensing node in the method embodiment shown in FIG2 , the transceiver unit 520 is configured to receive first information from a second node, where the first information indicates a first phase, where the first phase is the phase of a first sub-signal, or where the first phase is the phase difference between the first sub-signal and the second sub-signal. The first sub-signal is a sub-signal received by the second node from a sensing signal from the first node that is reflected from a sensing point on a sensed object and reaches the second node, and the second sub-signal is a sub-signal received by the second node from the sensing signal that is reflected from the first node and reaches the second node via a reference path between the first and second nodes. The processing unit 510 is configured to determine whether the sensed object has deformed based on the first phase and the reference phase.

[0133] For a more detailed description of the processing unit 510 and the transceiver unit 520 , reference may be made to the relevant description in the method embodiment shown in FIG. 2 .

[0134] It should be understood that the transceiver unit 520 in the communication device 500 can be implemented through a communication interface (such as a transceiver, a transceiver circuit, an input / output interface, or a pin, etc.). When the communication interface is a transceiver, the transceiver can be composed of a receiver and / or a transmitter. The processing unit 510 in the communication device 500 can be implemented by at least one processor. The processing unit 510 in the communication device 500 can also be implemented by at least one logic circuit. Optionally, the communication device 500 also includes a storage unit, which can be implemented by a memory.

[0135] As shown in Figure 6, communication device 600 includes a processor 610 and an interface circuit 620. Processor 610 and interface circuit 620 are coupled to each other. It is understood that interface circuit 620 can be a transceiver or an input / output interface. Optionally, communication device 600 may also include a memory 630 for storing instructions executed by processor 610, input data required by processor 610 to execute instructions, or data generated after processor 610 executes instructions.

[0136] In one implementation, the memory 630 may also be integrated into the processor 610 or independent of the processor 610 .

[0137] When the communication device 600 is used to implement the method shown in FIG. 2 , the processor 610 is used to implement the functions of the processing unit 510 , and the interface circuit 620 is used to implement the functions of the transceiver unit 520 .

[0138] When the above-mentioned communication device is a module applied to a communication device, the communication device module can implement the functions of the first node, the second node, or the sensing node in the above-mentioned method embodiment. The communication device module can receive information from other modules (such as a radio frequency module or an antenna) in the communication device, and the information is sent to the communication device by other communication devices; or the communication device module can send information to other modules (such as a radio frequency module or an antenna) in the communication device, and the information is sent by the communication device to other communication devices.

[0139] When the communication device is a network device, the communication device module may be a baseband chip of the network device, or a DU or other module. The DU here may be a DU under an open radio access network (O-RAN) architecture.

[0140] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0141] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in an access network device or a terminal device. The processor and storage medium can also exist in the access network device or the terminal device as discrete components.

[0142] According to the method provided in the embodiment of the application, the embodiment of the present application also provides a computer program product, which includes: computer program code, when the computer program code is executed by one or more processors, it enables the device including the processor to execute the method shown in Figure 2.

[0143] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device.

[0144] According to the method provided in an embodiment of the present application, an embodiment of the present application also provides a computer-readable storage medium, which stores the above-mentioned computer program or instructions. When the computer program or instructions are executed by one or more processors, the device including the processor executes the method shown in Figure 2.

[0145] As described above, the computer program or instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer program or instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that can be accessed by a computer, or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile types of storage media.

[0146] According to the method provided in the embodiment of the present application, the embodiment of the present application also provides a communication system, including the one or more second nodes described above. The system may further include the one or more sensing nodes described above. The system may also include the one or more first nodes described above.

[0147] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the devices described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or direct coupling or communication connection between each other shown or discussed can be through some interface, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0148] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this solution based on actual needs.

[0149] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0150] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A deformation sensing method, characterized in that: include: The first node sends a perception signal; The second node receives the perception signal, and obtains at least one sub-signal of the perception signal reaching the second node through at least one transmission path; The second node sends first information to the sensing node, where the first information is used to indicate a first phase, where the first phase is a phase of a first sub-signal in the at least one sub-signal, or the first phase is a phase difference between the first sub-signal and a second sub-signal in the at least one sub-signal, wherein the first sub-signal is a sub-signal that is obtained when the sensing signal is reflected by a sensing point on the sensed object and reaches the second node, and the second sub-signal is a sub-signal that is obtained when the sensing signal is reflected by a reference path in the at least one transmission path and reaches the second node; The sensing node determines whether the sensed object is deformed according to the first phase and a reference phase.

2. The method according to claim 1, characterized in that The method further comprises: The sensing node sends second information to the first node, where the second information is used to request the first node to perform sensing measurement of the sensed object, and the second information includes position information of a sensed point on the sensed object; The first node sends third information to the sensing node, where the third information is used to determine to perform the sensing measurement, and the third information is also used to indicate configuration information of the sensing signal.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: The sensing node sends fourth information to the second node, where the fourth information is used to configure the second node to perform sensing measurement, and the fourth information is used to indicate one or more of the following information: Configuration information of the perception signal, receiving beam information of the perception signal, information of the perceived point, information of the reference path, or position information of a reference point in the reference path that reflects the perception signal.

4. The method according to any one of claims 1 to 3, characterized in that The sensing node determines whether the sensed object is deformed according to the first phase and the reference phase, including: The sensing node determines whether the sensed point has shifted according to the phase difference between the first phase and the reference phase and the wavelength of the sensing signal. If the sensed point is displaced, the sensed object is deformed; if the sensed point is not displaced, the sensed object is not deformed.

5. The method according to claim 4, characterized in that The method further comprises: The sensing node sends an alarm message when determining that the sensed point has been displaced and the displacement is greater than or equal to a threshold value.

6. The method according to any one of claims 1 to 5, characterized in that The reference path is a direct signal path between the first node and the second node; or, the reference path is a transmission path of the perception signal from the first node to the second node after being reflected at a reference point.

7. The method according to any one of claims 1 to 6, characterized in that The first node and the second node are different nodes of the same access network device; or, the first node and the second node are nodes of different access network devices respectively.

8. The method according to any one of claims 1 to 7, characterized in that The perception node is a core network node, or the perception node and the second node are different nodes of the same access network device.

9. A deformation sensing method, characterized in that: include: receiving a sensing signal from a first node, and obtaining at least one sub-signal of the sensing signal arriving at a second node through at least one transmission path; Sending first information to a sensing node, where the first information is used to indicate a first phase, where the first phase is used to determine whether a sensed object is deformed, where the first phase is a phase of a first sub-signal in the at least one sub-signal, or where the first phase is a phase difference between a first sub-signal and a second sub-signal in the at least one sub-signal, wherein the first sub-signal is a sub-signal that is a result of the sensed signal being reflected from a sensed point on the sensed object and arriving at the second node, and the second sub-signal is a sub-signal that is a result of the sensed signal being reflected from a reference path in the at least one transmission path and arriving at the second node.

10. The method according to claim 9, characterized in that The method further comprises: receiving second information from the sensing node, the second information being used to configure the second node to perform sensing measurement, the second Information is used to indicate one or more of the following: Configuration information of the perception signal, receiving beam information of the perception signal, information of the perceived point, information of the reference path, or position information of a reference point in the reference path that reflects the perception signal.

11. The method according to claim 9 or 10, characterized in that: The reference path is a direct signal path between the first node and the second node; or, the reference path is a transmission path of the perception signal from the first node to the second node after being reflected at a reference point.

12. The method according to any one of claims 9 to 11, characterized in that The first node and the second node are different nodes of the same access network device; or, the first node and the second node are nodes of different access network devices respectively.

13. The method according to any one of claims 9 to 12, characterized in that The perception node is a core network node, or the perception node and the second node are different nodes of the same access network device.

14. A deformation sensing method, characterized in that: include: Receive first information from a second node, where the first information is used to indicate a first phase, where the first phase is a phase of a first sub-signal, or the first phase is a phase difference between a phase of the first sub-signal and a phase of a second sub-signal, wherein the first sub-signal is a sub-signal received by the second node from a sensing signal from the first node and reflected by a sensing point on a sensed object and arriving at the second node, and the second sub-signal is a sub-signal received by the second node from the sensing signal via a reference path between the first node and the second node and arriving at the second node; It is determined whether the sensed object is deformed according to the first phase and a reference phase.

15. The method according to claim 14, characterized in that The method further comprises: Sending second information to the first node, where the second information is used to request the first node to perform sensing measurement of the perceived object, and the second information includes position information of a sensed point on the perceived object; receiving third information from the first node, where the third information is used to determine to perform the perception measurement, and the third information is further used to indicate configuration information of the perception signal.

16. The method according to claim 14 or 15, characterized in that The method further comprises: Sending fourth information to the second node, where the fourth information is used to configure the second node to perform perception measurement, and the fourth information is used to indicate one or more of the following information: Configuration information of the perception signal, receiving beam information of the perception signal, information of the perceived point, information of the reference path, or position information of a reference point in the reference path that reflects the perception signal.

17. The method according to any one of claims 14 to 16, characterized in that The determining, according to the first phase and the reference phase, whether the sensed object is deformed comprises: determining whether the sensed point has shifted according to the phase difference between the first phase and the reference phase and the wavelength of the sensed signal, If the sensed point is displaced, the sensed object is deformed; if the sensed point is not displaced, the sensed object is not deformed.

18. The method according to claim 17, characterized in that The method further comprises: When it is determined that the sensed point has been displaced and the displacement is greater than or equal to a threshold value, an alarm message is sent.

19. The method according to any one of claims 14 to 18, characterized in that The reference path is a direct signal path between the first node and the second node; or, the reference path is a transmission path of the perception signal from the first node to the second node after being reflected at a reference point.

20. The method according to any one of claims 14 to 19, characterized in that The first node and the second node are different nodes of the same access network device; or, the first node and the second node are nodes of different access network devices respectively.

21. The method according to any one of claims 14 to 20, characterized in that The perception node is a core network node, or the perception node and the second node are different nodes of the same access network device.

22. A communication device, characterized in that: The device comprises a processor, wherein the processor is configured to execute a computer program stored in a memory, so that the communication device executes the method according to any one of claims 9 to 13, or executes the method according to any one of claims 14 to 19.

23. The device according to claim 22, characterized in that The communication device includes the memory.

24. A communication device, characterized in that: include: A logic circuit and a communication interface, wherein the logic circuit is used to process information to be processed to obtain processed information, and the communication interface is used to obtain the information to be processed, and / or output the processed information, so that the communication device executes the method described in any one of claims 9 to 13, or executes the method described in any one of claims 14 to 19.

25. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed, the method according to any one of claims 9 to 13 or the method according to any one of claims 14 to 19 is implemented.

26. A communication system, characterized in that: The invention comprises a communication device for executing any one of claims 9 to 13 and a communication device for executing any one of claims 14 to 19.

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