Sensing method and related device

Abstract

Provided in the embodiments of the present application is a sensing method, comprising: receiving a first sensing measurement configuration from a network device, wherein the first sensing measurement configuration is used for indicating a sensing measurement period, and indicating that a sensing task is executed N times within the sensing measurement period; executing the sensing task N times within the sensing measurement period, and acquiring N pieces of sensing information corresponding to the sensing task executed N times; if the N pieces of sensing information meet a first condition, sending first indication information to the network device, wherein the first indication information is used for the network device to send a second sensing measurement configuration; and receiving the second sensing measurement configuration, and further executing the sensing task P times within the sensing measurement period on the basis of the second sensing measurement configuration.

Description

A sensing method and related device

[0001] The present application claims priority from the Chinese patent application No. 202411046403.X filed on July 31, 2024, and entitled "A sensing method and related device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, in particular to a sensing method and related device. BACKGROUND

[0003] Communication and sensing integration is a key technology in the next generation of wireless communication systems, aiming to integrate wireless communication and sensing functions in the same system, using various propagation characteristics of wireless signals to achieve positioning, detection, imaging and identification of targets and other sensing functions to obtain information about the surrounding physical environment, improve communication performance and enhance user experience. In the communication and sensing integration technology, network devices send sensing signals and receive echo signals to perform sensing and obtain information about the location and speed of targets in the environment.

[0004] Among the various sensing modes discussed in the current 3rd generation partnership project-service and system aspects working group 1 (3GPP SA1), there are two modes: in the base station-to-UE mode, the sensing signal is sent by the base station, reflected by the target in the environment, and then received by the UE; in the UE-to-base station mode, the sensing signal is sent by the UE, reflected by the target in the environment, and then received by the base station. In these two modes, after the sensing resources are configured by the base station, both parties perform sensing signal transmission and reception operations according to the configured resources.

[0005] However, in actual situations, the demand for sensing is constantly changing, and sensing according to fixed resources can easily lead to unnecessary resource occupation. SUMMARY

[0006] The present application provides a sensing method and related device to avoid unnecessary resource occupation in sensing measurement.

[0007] The first aspect of the present application provides a sensing method:

[0008] receive a first sensing measurement configuration from the network device, the first sensing measurement configuration being used to indicate a sensing measurement period, and perform N sensing tasks in the sensing measurement period, N being greater than or equal to 1. The N sensing tasks are performed in the sensing measurement period, and N pieces of sensing information corresponding to the N sensing tasks are obtained, the sensing information including sensing measurement data or target information obtained according to the sensing tasks. If the N pieces of sensing information satisfy a first condition, first indication information is sent to the network device, the first indication information being used for the network device to send a second sensing measurement configuration, the second sensing measurement configuration being used to indicate that P sensing tasks are further performed in the sensing measurement period, P being greater than or equal to 1. The second sensing measurement configuration is received, and the P sensing tasks are further performed in the sensing measurement period according to the second sensing measurement configuration.

[0009] In the present application, the N sensing tasks with the lowest frequency are performed first in a sensing measurement period to ensure the basic sensing requirement. If the sensing information of the N sensing tasks satisfies the first condition, it indicates that the N sensing tasks have benefits, and therefore it is predicted that it is also beneficial to continue to perform the sensing tasks in the sensing measurement period, so as to trigger the continued performance of the sensing tasks, and ensure the actual sensing requirement, otherwise the continued performance of the sensing tasks is not triggered, thereby achieving energy saving.

[0010] In a possible implementation, the first condition is that M pieces of sensing information in the N pieces of sensing information satisfy a second condition, M being less than or equal to N and greater than or equal to 1. Or, the first condition is that M pieces of sensing information in the last L pieces of sensing information in the N pieces of sensing information satisfy the second condition, L being greater than or equal to 1 and greater than or equal to M.

[0011] In the present application, the second condition can be set as a case where the sensing information has benefits. If the N pieces of sensing information include M pieces of sensing information satisfying the second condition or the last L pieces of sensing information include M pieces of sensing information satisfying the second condition, it indicates that the N pieces of sensing information have benefits, and therefore it is predicted that it is also beneficial to continue to perform the sensing tasks in the sensing measurement period, so as to ensure the accuracy of triggering the sensing tasks.

[0012] In a possible implementation, if the sensing information is sensing measurement data, the second condition is that a change degree of the sensing information compared with sensing information corresponding to a previous sensing task is greater than a first numerical value, and if the sensing information is target information, the second condition is that the sensing information indicates that there is a sensing target or there is a sensing target meeting a specific feature.

[0013] In the present application, if the change degree of the sensing measurement data compared with the previous sensing task is greater than a preset value, or the target information indicates that there is a sensing target or there is a sensing target meeting a specific feature, it indicates that the sensing information has benefits, thereby ensuring the accuracy of triggering the sensing tasks.

[0014] In a possible implementation, the method further includes:

[0015] The P pieces of sensing information corresponding to the P pieces of sensing tasks are acquired, and if the P pieces of sensing information satisfy a third condition, second indication information is sent to the network device, the second indication information is used for the network device to send third sensing measurement configuration, the third sensing measurement configuration is used for indicating that Q pieces of sensing tasks are further performed in the sensing measurement period, Q is greater than or equal to 1, the third condition is that S pieces of sensing information satisfying a second condition are included in the P pieces of sensing information, S is less than or equal to P and greater than or equal to 1. Or, the third condition is that S pieces of sensing information satisfying the second condition are included in the last D pieces of sensing information in the P pieces of sensing information, D is greater than or equal to 1, and D is greater than or equal to S.

[0016] In the present application, if the sensing information of the P pieces of sensing tasks satisfies the third condition, it means that the P pieces of sensing tasks have benefits, so it is beneficial to continue to perform the sensing tasks in the sensing measurement period, thereby triggering the continued execution of the sensing tasks, ensuring that the actual sensing demand is met, otherwise the continued execution of the sensing tasks cannot be triggered, thereby achieving energy saving.

[0017] The second aspect of the present application provides a sensing method:

[0018] The sensing measurement configuration is received from the network device, the sensing measurement configuration is used for indicating a sensing measurement period and performing N pieces of sensing tasks in the sensing measurement period, N is greater than or equal to 1. N pieces of sensing information corresponding to the N pieces of sensing tasks are acquired in the sensing measurement period, the sensing information includes sensing measurement data or target information obtained according to sensing measurement, if the N pieces of sensing information satisfy a first condition, P pieces of sensing tasks are further performed in the sensing measurement period, P is greater than or equal to 1.

[0019] The beneficial effects of the second aspect are described above in the first aspect, and will not be described in detail here. In the second aspect, the UE can trigger the sensing task by itself, reducing the signaling overhead.

[0020] In a possible implementation, the first condition is that M pieces of sensing information satisfying a second condition are included in the N pieces of sensing information, M is less than or equal to N and greater than or equal to 1; or the first condition is that M pieces of sensing information satisfying the second condition are included in the last L pieces of sensing information in the N pieces of sensing information, L is greater than or equal to 1, and L is greater than or equal to M.

[0021] In a possible implementation, if the sensing information is sensing measurement data, the second condition is that the change degree of the sensing information compared with the sensing information corresponding to the last sensing task is greater than a first value, if the sensing information is target information, the second condition is that the sensing information indicates that there is a sensing target or there is a sensing target meeting a specific feature.

[0022] In a possible implementation, the method further includes:

[0023] The P perception tasks correspond to perception information. If the perception information corresponding to the P perception tasks satisfies a third condition, Q perception tasks are further performed in the perception measurement period, Q is greater than or equal to 1, the third condition is that S perception information in the P perception information satisfies a second condition, S is less than or equal to P and greater than or equal to 1, or the third condition is that S perception information in the last D perception information in the P perception information satisfies the second condition, D is greater than or equal to 1, and D is greater than or equal to S.

[0024] In a possible implementation, the method further includes:

[0025] The indication information is used to instruct the network device to send the perception signal.

[0026] The third aspect of the present application provides a perception method:

[0027] The first perception measurement configuration is sent to the UE, the perception measurement configuration is used to instruct the perception measurement period, and N perception tasks are performed in the perception measurement period, N is greater than or equal to 1. N perception information corresponding to the N perception tasks is determined, the perception information includes perception measurement data or target information obtained according to the perception measurement. If the N perception information satisfies a first condition, the second perception measurement configuration is sent to the UE, the second perception configuration is used to instruct the UE to further perform P perception measurement in the perception measurement period, P is greater than or equal to 1.

[0028] The beneficial effects of the third aspect are described above for the first aspect, and will not be repeated here. In the third aspect, whether the N perception information satisfies the first condition is determined by the base station, thereby reducing the overhead of the UE.

[0029] In a possible implementation, the first condition is that M perception information in the N perception information satisfies a second condition, M is less than or equal to N and greater than or equal to 1, or the first condition is that M perception information in the last L perception information in the N perception information satisfies the second condition, L is greater than or equal to 1, and L is greater than or equal to M.

[0030] In a possible implementation, if the perception information is the perception measurement data, the second condition is that the degree of change of the perception information compared with the perception information corresponding to the last perception task is greater than a first value, and if the perception information is the target information, the second condition is that the perception information indicates that there is a perception target or there is a perception target meeting a specific feature.

[0031] In a possible implementation, the method further includes:

[0032] determining the P pieces of sensing information corresponding to the P pieces of sensing tasks, and if the P pieces of sensing information satisfy a third condition, sending a third sensing measurement configuration to the UE, the third sensing measurement configuration being used to indicate that Q pieces of sensing tasks are further performed in the sensing measurement period, Q being greater than or equal to 1, the third condition being that S pieces of sensing information in the P pieces of sensing information satisfy the second condition, S being less than or equal to P and greater than or equal to 1, or the third condition being that S pieces of sensing information in the last D pieces of sensing information in the P pieces of sensing information satisfy the second condition, D being greater than or equal to 1 and greater than or equal to S.

[0033] In a possible implementation, the N pieces of sensing information corresponding to the N pieces of sensing tasks are specifically received from the UE. The P pieces of sensing information corresponding to the P pieces of sensing tasks are specifically received from the UE.

[0034] The fourth aspect of the present application provides a terminal device, comprising a processor and a memory, the processor being configured to execute instructions stored in the memory, so that the terminal device performs the method in the first or second aspect.

[0035] The fifth aspect of the present application provides a network device, comprising a processor and a memory, the processor being configured to execute instructions stored in the memory, so that the network device performs the method in the third aspect.

[0036] The sixth aspect of the present application further provides a computer program product comprising instructions, which, when executed by a computer, cause the computer to perform the method in the foregoing aspects.

[0037] The seventh aspect of the present application further provides a computer-readable storage medium comprising computer program instructions, which, when executed by a computer, cause the computer to perform the method in the foregoing aspects. BRIEF DESCRIPTION OF DRAWINGS

[0038] FIG. 1 is a schematic diagram of a sensing mode;

[0039] FIG. 2 is a schematic diagram of a flow of sensing measurement;

[0040] FIG. 3 is a schematic diagram of an application scenario of the present application;

[0041] FIG. 4 is a schematic diagram of a common-sensing network architecture;

[0042] FIG. 5 is another schematic diagram of the common-sensing network architecture;

[0043] FIG. 6 is another schematic diagram of the common-sensing network architecture;

[0044] FIG. 7 is another schematic diagram of an application scenario of the present application;

[0045] FIG. 8 is a schematic diagram of a protocol stack on a base station side;

[0046] FIG. 9 is another schematic diagram of an application scenario of the present application;

[0047] FIG. 10 is a schematic diagram of an O-RAN device protocol stack;

[0048] FIGS. 11 to 19 are schematic diagrams of a sensing method of the present application;

[0049] FIG. 20 is a schematic diagram of a structure of a device in the present application;

[0050] FIG. 21 is another schematic diagram of a structure of a device in the present application. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The terms "first", "second", and corresponding terms of reference labels in the present application are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, which is only a distinguishing way used in the description of the embodiments of the present application to describe the objects with the same attributes. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, so that the processes, methods, systems, products or devices containing a series of units do not necessarily have to be limited to those units, but can include other units that are not clearly listed or inherent to these processes, methods, products or devices. The methods and devices provided by the embodiments of the present application are based on the same or similar technical concepts, and since the principles of the devices and methods for solving problems are similar, the implementation of the devices and methods can be mutually referred to, and the repeated parts will not be described again.

[0052] The technical solutions provided by the embodiments of the present application can be applied to a communication sensing integrated (ISAC) system. The communication sensing integrated system refers to a system in which communication and sensing are integrated, also known as a harmonized communication and sensing (HCS) system. The core idea of communication sensing integration is to add sensing capability to the communication network, and to build the ability to detect, track and image targets, so that the two capabilities of communication and sensing are integrated into one network.

[0053] The method provided by the embodiments of the present application can be applied to various mobile communication systems, for example, can be an internet of things (IoT), narrow band internet of things (NB-IoT), can be a 4th generation (4G) communication system (for example, long term evolution (LTE)), can be a 5th generation (5G) communication system (for example, 5G new radio (NR)), can be a hybrid architecture of LTE and NR, or can be a new communication system in future communication development, and the like.

[0054] Before introducing the technical solutions provided by the embodiments of the present application, first, the technical terms related by the embodiments of the present application, the network architecture applicable and the scene, and the like are introduced.

[0055] (1) Sensing, which can also be replaced by: sensing process, sensing operation, sensing detection, detection process, sensing task.

[0056] Sensing can be understood as a technology capable of obtaining environmental and / or object feature information in the environment. The object feature information in the environment includes but is not limited to shape, size, direction, speed, position, distance between objects or relative motion, and the like. The working principle of sensing is that the sending end sends a sensing signal, the receiving end receives a signal reflected by a sensing target (also referred to as a return signal) from the sensing signal, and obtains a sensing result, such as speed, distance, shape, size, and the like, according to the return signal. The sensing target can also be referred to as a target, a detected target, a sensed object, a detected object, or a sensed target, and is not limited. The sensing target can be various tangible objects in the environment that can reflect electromagnetic waves. For example, the sensing target can be a stationary object such as a building. For another example, the sensing target can also be a movable object such as a vehicle, a drone, or a terminal device.

[0057] (2) Sensing measurement data. The sensing measurement data can include a return signal or channel response information of the return signal; or the sensing measurement data can also include sensing measurement data; or the sensing measurement data can also include a sensing result.

[0058] The echo signal refers to a signal reflected back to the receiver after the sensing signal is transmitted from the transmitter to the target object. The sensing signal is used to sense (or detect) the sensed target (or target object). The sensing signal is also referred to as a detection signal, a chirp signal, a radar signal, a radar sensing signal, a radar detection signal, an environmental sensing signal, and the like. The sensing signal can be a pulse signal or a signal that can be used in a wireless communication system, such as an orthogonal frequency division multiplexing (OFDM) signal.

[0059] The channel response information of the echo signal can include at least one of amplitude data, phase data, in-phase (I) data, and quadrature (Q) data determined from the echo signal.

[0060] The sensing measurement data refers to data obtained after processing the echo signal. The processing of the echo signal involves multiple links, and the data obtained by each processing link can be referred to as sensing measurement data. For example, the sensing measurement data can include one or more of time delay, Doppler, angle, and intensity of a sampling point, or can represent one or more of position, velocity, and intensity of the sampling point. For example, the sensing measurement data includes but is not limited to one or more of in-phase quadrature (IQ) data, range / Doppler (RD) spectrum, range / Doppler / angle (RDA) spectrum, distance / velocity (DV) spectrum, distance / velocity / angle (DVA) spectrum, range / velocity (RV) spectrum, range / velocity / angle (RVA) spectrum, a set of coordinate points, a point cloud, a centroid of a real target, and the like.

[0061] The target information refers to results related to business functions and performance obtained based on processing such as calculation and analysis of the sensing measurement data. For example, the sensing results include whether there is a sensed target, some information of the sensed target (such as speed, distance, angle, orientation, acceleration, position, moving track, imaging result, expression, breathing / heartbeat frequency, and the like). The sensing results are different according to different sensed targets. For example, if the sensed target is air, the sensing results include air quality, gas components included in the air, and the like; for another example, if the sensed target is a vehicle, the sensing results include the number of vehicles, the position of the vehicles, the moving track of the vehicles, and the like.

[0062] For example, please refer to FIG. 1, which is a schematic diagram of various sensing modes provided by embodiments of the present application. In FIG. 1, the sensing target is a vehicle, and six sensing modes are provided. The six sensing modes are: the mode in which the access network device A sends sensing signals and receives echo signals, as shown in (1) in FIG. 1; the mode in which the terminal device A sends sensing signals and receives echo signals, as shown in (2) in FIG. 1; the mode in which the access network device A sends sensing signals and the access network device B receives echo signals, as shown in (3) in FIG. 1; the mode in which the terminal device A sends sensing signals and the terminal device B receives echo signals, as shown in (4) in FIG. 1; the mode in which the access network device A sends sensing signals and the terminal device A receives echo signals, as shown in (5) in FIG. 1; and the mode in which the terminal device A sends sensing signals and the access network device A receives echo signals, as shown in (6) in FIG. 1. In FIG. 1, the terminal device is a smart phone.

[0063] The sensing signaling interaction can be divided into the following four modes according to different network elements participating in sensing: sensing function (SF) and 5G base station (next generation node B, gNB) signaling interaction, SF and terminal device signaling interaction, gNB and terminal device signaling interaction, and terminal device and terminal device signaling interaction. The relationship between different sensing modes and the interaction requirements among the three network elements (SF, gNB, and terminal device) is shown in Table 1:

[0064] Table 1

[0065] Among them, the gNB self-sending and self-receiving mode and the gNB A sending and gNB B receiving mode both involve sensing by the network side, which only requires interaction between the SF and the gNB. The gNB sending and terminal device receiving mode and the terminal device sending and gNB receiving mode require network side and terminal device side collaborative sensing, which requires interaction between the SF and the gNB, the SF and the terminal device, and the gNB and the terminal device. For the terminal device self-sending and self-receiving mode and the terminal device A sending and B receiving mode, although the sensing process does not require the participation of the base station, considering that all sensing resources belong to air interface resources, which should be managed and allocated by the base station, and the terminal device needs to report its sensing capability, therefore, the four interaction modes exist in the two sensing modes. It should be noted that in the sensing mode involving the terminal device, the SF and the terminal device can also interact through non-access layer signaling, and the process of interaction is transparent to the base station, thereby avoiding the complexity brought by the three-level node interaction of the SF, the gNB, and the terminal device.

[0066] Referring to FIG. 2, the sensing process mainly includes three stages: sensing capability reporting, sensing measurement configuration and sensing measurement reporting. Firstly, the terminal device (UE) initiates the sensing capability reporting and sends the sensing capability information to the network plane (gNB). This step is to let the network plane know the sensing capability of the terminal device, so as to perform subsequent communication configuration and optimization. Then, the network plane (gNB) performs sensing measurement configuration after receiving the sensing capability reporting of the terminal device. This is to configure appropriate sensing measurement parameters according to the sensing capability of the terminal device, to ensure the effectiveness and accuracy of the subsequent sensing data. After the configuration is completed, the terminal device performs sensing measurement according to the configured parameters, and sends the measured data to the network plane (gNB) through sensing measurement reporting. These sensing data contain the sensing information of the terminal device on the current wireless communication environment, which is crucial for the decision and optimization of the network plane. Finally, the network plane (gNB) forwards these data to the bearer network (SF) after receiving the sensing measurement reporting. The bearer network will further optimize and schedule the network according to these data, to ensure the performance and efficiency of the whole wireless communication system.

[0067] Referring to FIG. 3, it is a network architecture diagram of a communication system applicable to the embodiment of the present application. The network architecture shown in FIG. 3 can integrate sensing function, realizing communication and sensing integration. As a typical application scenario of sensing, FIG. 3 takes an access network device and multiple terminal devices in the environment as an example, and takes the terminal device as a smartphone, and takes the sensing target as a drone, a pedestrian, and a vehicle as an example. FIG. 3 takes the communication as a solid line and the sensing as a dashed line as an example.

[0068] Currently, a sensing function (SF) network element can be added in the core network, and the sensing basic functions such as sensing authorization, sensing control, sensing measurement data processing or result output can be realized by the core network controlling / managing the sensing process.

[0069] For example, please refer to FIG. 4, which is a schematic diagram of a core network architecture provided by an embodiment of the present application. The network architecture shown in FIG. 4 can be regarded as a potential possible perception network architecture. FIG. 4 is based on a 5G core network (5G core, 5GC), and a SF network element is newly added on the core network side, and an interface between the SF network element and one or more 5GC network elements is newly added. For example, in FIG. 3, the SF can interact with the 5GC network elements such as a location management function (LMF), an access and mobility management function (AMF), a network exposure function (NEF), a unified data management (UDM), a network data analytics function (NWDAF), and a policy control function (PCF) through the interfaces between the SF and the 5GC network elements. The SF can interact with the RAN or the UE through the 5GC network elements to exchange perception signaling, and the perception measurement data obtained by the RAN or the UE can be transmitted to the SF through the control plane or the user plane. When the perception measurement data is transmitted to the SF through the user plane, the perception measurement data can be forwarded to the SF through the UPF or directly transmitted to the SF. The interface between the SF and the 5GC network elements such as the AMF, the NEF, the UDM, the NWDAF, the PCF, the LMF, and the UPF is defined as follows.

[0070] NS1: an interface newly added between the SF and the AMF, which can transmit perception control signaling. In addition, for the scenario of transmitting the perception measurement data through the control plane, the interface can also transmit the perception measurement data.

[0071] NS2: an interface newly added between the SF and the NEF, which can transmit signaling messages exchanged between the perception network element and the application function (AF) through the NEF, and can also open the perception result to the AF.

[0072] NS3: an interface newly added between the SF and the UDM, through which authentication or authorization can be implemented, and the perception subscription information of the UE, the service AMF information, or other information can be obtained.

[0073] NS4: an interface newly added between the SF and the NWDAF, through which the SF can jointly complete the AI processing related to the perception service with the NWDAF.

[0074] NS5: a newly added interface between SF and PCF, through which the SF can deliver information such as sensing requirements, quality of service (QoS) requirements or sensing results of a sensing service to the PCF, and the PCF can generate a policy control and charging (PCC) policy related to the sensing service.

[0075] NS6: a newly added interface between SF and LMF, through which the SF can obtain location-related information such as a sensing area, RAN information of a sensing target, and location information of a sensed UE.

[0076] NS7: a newly added interface between SF and UPF, through which sensing measurement data can be transmitted directly from the (R)AN to the SF via the UPF, or indirectly forwarded to the SF via the UPF. In the scenario where the (R)AN performs sensing via the UPF, the function of the UPF can be improved to support (R)AN-granularity data transmission.

[0077] The above interfaces are only examples and the embodiments of the present application do not limit the names of the interfaces between the SF network element and other network elements.

[0078] In the present application, a new module can be introduced on the side of the access network device, for example, the module can be referred to as a sensing unit (SU). The SU can also be a function or entity independent of the access network device, or a function or entity within the access network device. The SU can be responsible for performing sensing-related functions, for example, the SU can be connected (directly or indirectly) with the SF and interact with the SF for related sensing requirements; for another example, the SF can be connected with core network elements such as AMF or UPF for transmitting sensing-related information or data. The SU can also be used to perform sensing control functions and data preprocessing functions.

[0079] Please refer to FIG. 5, which shows two typical architecture diagrams of introducing an SU on the side of the RAN. FIG. 5 takes a base station as an example of the access network device.

[0080] As shown in (a) of FIG. 5, the SU can be an entity independent of the RAN device, which can be connected with the base station through an interface similar to the Xn interface. For ease of distinction, the interface between the SU and the base station can be referred to as the Xn-S interface. If the base station is of a CU-DU structure, the SU can communicate with the CU through the Xn-S interface. When the SU is an entity independent of the RAN device, the SU can also be regarded as a communication node (for example, referred to as a sensing control (SC) node) independent of the RAN device.

[0081] As shown in (b) of FIG. 5, the SU can be a functional unit in the access network device, and can communicate with the CU through an interface similar to F1. For ease of distinction, the interface between the SU and the CU can be referred to as an F1-S-C interface.

[0082] The SU is introduced in the RAN side in FIG. 5, and has a function of managing UE sensing, and therefore, the base station can communicate with both a normal UE and a sensing UE.

[0083] Referring to FIG. 6, potential communication interfaces of the SU are shown. FIG. 6 shows potential interfaces of the SU in dashed lines. As shown in FIG. 6, the SU can directly communicate with the DU or directly communicate with the UE. The SU can be directly connected to one or more core network elements, for example, the SU can be directly connected to the SF, the AMF, or the UPF. The SU can also be indirectly connected to one or more core network elements, for example, the SU can be connected to the SF through the AMF or connected to the SF through the UPF. Alternatively, the SU can be connected to the AMF through the CU, and then connected to the SF through the AMF.

[0084] In the embodiments of the present application, the SU is deployed in the RAN side, and can directly interact with the CU and interact with the core network through the CU. In the sensing measurement process, the SU / CU can configure a sensing measurement configuration for the UE, and the transmission path of the sensing measurement configuration can be: DU->CU / SU->UE. Similarly, the DU obtains sensing measurement data, and can send the sensing measurement data to the SU. The transmission path of the sensing measurement data can be: DU->SU, or DU->CU->SU.

[0085] FIG. 7 is a schematic diagram of a network architecture of another communication system to which embodiments of the present application can be applied. The present application can be applied in a communication system 1000 as shown in FIG. 7, which includes a radio access network (RAN) 100 and a core network (CN) 200. The RAN 100 includes at least one RAN node (e.g., 110a and 110b, collectively referred to as 110) and at least one terminal device (e.g., 120a-120j, collectively referred to as 120). Other RAN nodes, such as wireless relay devices and / or wireless backhaul devices, etc., can also be included in the RAN. The terminal devices 120 are connected to the RAN nodes 110 in a wireless manner. The RAN nodes 110 are connected to the core network 200 in a wireless or wired manner. The core network devices in the core network 200 and the RAN nodes 110 in the RAN 100 can be different physical devices respectively, or can be the same physical device integrated with the logical functions of the core network and the logical functions of the radio access network. The RAN 100 can be a 3rd generation partnership project (3GPP) related cellular system, such as a 4G, 5G mobile communication system, an NTN (non-terrestrial network) system, or a future-oriented evolution system (e.g., a 6G mobile communication system). The RAN 100 can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system, and can also be a communication system in which two or more of the above systems are integrated. In the present application, the RAN 100 can be an NTN (non-terrestrial network) system, and the RAN 100 can be a transparent mode or a regenerative mode, an earth fixed cell or an earth moving cell.

[0086] The terminal device 120 can also be referred to as a user equipment, a mobile station, a mobile terminal, etc. The terminal device can be widely applied to various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. Embodiments of the present application do not limit the device form of the terminal device.

[0087] The RAN node 110 can also be referred to as an access network device, a RAN entity or an access node, etc., which constitutes part of the communication system to help the terminal device to realize wireless access. The plurality of RAN nodes 110 in the communication system 1000 can be nodes of the same type or nodes of different types. In some scenarios, the roles of the RAN node 110 and the terminal device 120 are relative, for example, the network element 120i can be a helicopter or a drone, which can be configured as a mobile base station, and for those terminal devices 120j accessing to the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal device. The RAN node 110 and the terminal device 120 are sometimes both referred to as communication apparatuses, for example, the network elements 110a and 110b can be understood as communication apparatuses with base station functions, and the network elements 120a-120j can be understood as communication apparatuses with terminal device functions.

[0088] Communications between the access network device and the terminal device follow a certain protocol layer structure. The protocol layer can include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer can include at least one of a radio resource control (RRC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a media access control (MAC) layer, or a physical (PHY) layer, etc. The user plane protocol layer can include at least one of a service data adaptation protocol (SDAP) layer, a PDCP layer, an RLC layer, a MAC layer, or a physical layer, etc.

[0089] In a possible scenario, the RAN node can 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 6th generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The RAN node can be a macro base station (such as 110a in FIG. 1), a micro base station or an indoor station (such as 110b in FIG. 1), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in the vehicle to everything (V2X) technology can be a road side unit (RSU).

[0090] In another possible scenario, a terminal device is assisted by multiple RAN nodes to implement wireless access, and different RAN nodes respectively implement part of functions of a base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, for example, in a baseband unit (BBU). The CU node and the DU node split the protocol layers of the gNB, and part of the protocol layers are controlled by the CU in a centralized manner, and the remaining part or all of the protocol layers are distributed in the DU and controlled by the CU in a centralized manner. As an implementation manner, the CU is deployed with a radio resource control (RRC) layer, a PDCP layer, and a service data adaptation protocol (SDAP) layer in a protocol stack; and the DU is deployed with a radio link control (RLC) layer, a media access control (MAC) layer, and a physical layer (PHY) in the protocol stack. Therefore, the CU has processing capability of RRC, PDCP, and SDAP. The DU has processing capability of RLC, MAC, and PHY. It can be understood that the above-mentioned splitting of functions is only an example, and does not limit the CU and the DU. The RU can be included in a radio frequency device or a radio frequency unit, for example, included in a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH).

[0091] The core network includes an access and mobility management function (AMF) entity, a session management function (SMF) entity, a user plane function (UPF) entity, and the like, which are not listed one by one here. Among them, the AMF entity can be responsible for access management and mobility management of the terminal device; the SMF entity can be responsible for session management, such as session establishment of a user; and the UPF entity can be a functional entity of the user plane, mainly responsible for connecting external networks. It should be noted that the entity in the present application can also be referred to as a network element or a functional entity, for example, the AMF entity can also be referred to as an AMF network element or an AMF functional entity, and for another example, the SMF entity can also be referred to as an SMF network element or an SMF functional entity, and the like. The AMF is mainly responsible for mobility management in the mobile network, such as user location update, user registration network, and user handover. The SMF is mainly responsible for session management in the mobile network, such as session establishment, modification, and release. Specific functions include allocating IP addresses for users, selecting UPFs that provide message forwarding functions, and the like. The PCF is responsible for providing policies to the AMF and the SMF, such as QoS policies and slice selection policies. The UDM is used to store user data, such as subscription information and authentication / authorization information. The AF (Application Function) is responsible for providing services to the 3GPP network, such as affecting service routing and interacting with the PCF for policy control. The NEF (Network Exposure Function) exposes the capabilities of each NF and is responsible for converting internal and external information. The UPF is mainly responsible for processing user messages, such as forwarding, charging, and the like.

[0092] Referring to FIG. 8, FIG. 8 is a schematic diagram of a base station side NR protocol stack and a network element module;

[0093] For the network elements in the ORAN system and the corresponding relationship of the protocol layer functions that can be implemented by the network elements, refer to Table 2:

[0094] Table 2

[0095] Referring to FIG. 9, FIG. 9 is a schematic diagram of an O-RAN system, which can include other components than those shown in FIG. 9. As shown, an access network device (RAN, which can be an eNB or gNB or next generation access network device) communicates with a core network (CN) through a backhaul link and communicates with a terminal device (UE) through an air interface. Specifically, a baseband unit (BBU) in the access network device communicates with the CN through a backhaul link, and a radio unit (RU) in the access network device communicates with at least one terminal device through an air interface. The BBU communicates with at least one RU through a front-haul link, and the BBU and the RU can or can not be co-located. The BBU includes at least one control unit (CU) and at least one distributed unit (DU), which can communicate through at least one mid-haul link. Referring to FIG. 10, FIG. 10 shows a network element function division and protocol layer structure diagram of an O-RAN device. In some examples, the CU is a logical node that carries the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, the packet data convergence protocol (PDCP) layer, and other control functions of the access network device. The CU is connected to network nodes such as the core network through some interfaces, which can be E2 interfaces and the like. Optionally, the CU can have part of the functions of the core network. The CU (e.g., the PDCP layer and higher layers) is connected to the DU (e.g., the RLC layer and lower layers) through some interfaces, which can be F1 interfaces and the like. In some examples, these interfaces (e.g., the F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, terminal device context management, RRC message transmission, and the like). The F1AP is an application protocol of the F1 interface, which defines the signaling procedures of the F1 in some examples. The F1 interface supports the control plane F1-C and the user plane F1-U.

[0096] In some examples, the CU can be split into a CU-CP (control unit-control plane) and a CU-UP (control unit-user plane), where the CU-CP is a logical node carrying the RRC layer and the PDCP-C (control plane part of PDCP) layer, used to implement the control plane function of the CU. The CU-CP can interact with a network element in the core network used to implement the control plane function. The network element in the core network used to implement the control plane function can be an access and mobility function network element, such as an access and mobility management function (AMF) in a 5G system. The AMF network element is used to be responsible for mobility management in a mobile network, such as location updating of a terminal device, registration of a terminal device to a network, handover of a terminal device, and the like. The CU-UP is a logical node carrying the SDAP layer and the PDCP-U (user plane part of PDCP) layer, used to implement the user plane function of the CU. The CU-UP can interact with a network element in the core network used to implement the user plane function. The network element in the core network used to implement the user plane function, for example, a user plane function (UPF) in a 5G system, is used to be responsible for forwarding and receiving data in a terminal device. The above configuration of the CU and the DU is merely an example, and the CU and the DU can have other functions according to needs. For example, the CU or the DU can be configured to have more protocol layer functions, or the CU or the DU can be configured to have partial processing functions of the protocol layers. For example, partial functions of the RLC layer and functions of the protocol layers above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and functions of the protocol layers below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to the service type or other system requirements, for example, according to the delay. Functions that need to meet a relatively short delay requirement in processing time are arranged in the DU, and functions that do not need to meet the delay requirement are arranged in the CU.

[0097] In some examples, the DU is a logical node carrying a radio link control (RLC) layer, a medium access control (MAC) layer, a higher physical layer (higher PHY) layer, and other functions. In some examples, the DU can control at least one RU. The DU is connected to the RU through some interfaces, which can be a front-haul interface.

[0098] In some examples, a CU can have no PDCP layer, i.e., only include an RRC layer. A CU-CP has no PDCP-C. A CU-UP can have no PDCP-U, or no CU-UP at all. In some examples, a DU can have no RLC layer, only MAC and higher PHY layers. Also, in some examples, a CU can include only a DU.

[0099] In some examples, a Higher PHY layer includes parts of PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc. processing functions. In some examples, an RU is a logical node that hosts lower physical layer (lower PHY) and radio frequency (RF) processing. In some examples, an RU can be a 3GPP transmission reception point (TRP) or a remote radio head (RRH) or other similar functional entity. In some examples, a Low-PHY includes parts of PHY processing, such as fast fourier transform (FFT), inverse fast fourier transformation (IFFT), digital beamforming and filtering, etc. processing functions. An RU communicates with one or more terminal devices over a wireless link.

[0100] The DU and the RU can be co-located or not. The DU and the RU exchange control plane and user plane information via a lower-layer split-control, user and synchronization (LLS-CUS) interface over a fronthaul link. The LLS-CUS can include a LLS-C interface and a LLS-U interface that provide a control plane (C-Plane) and a user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and the RU. The DU and the RU exchange management information via a LLS-M interface of the fronthaul link, and the management plane (M-Plane) refers to non-real-time management operations between the DU and the RU. The DU and the RU can cooperate to jointly implement the functions of the PHY layer. One DU can be connected to one or more RUs. The functions of the DU and the RU can be configured in multiple ways according to design. For example, the DU is configured to implement baseband functions, and the RU is configured to implement intermediate radio frequency functions. For another example, the DU is configured to implement high-layer functions in the PHY layer, and the RU is configured to implement low-layer functions in the PHY layer or implement the low-layer functions and radio frequency functions. The high-layer functions in the PHY layer can include a part of functions of the PHY layer that are closer to the MAC layer, and the low-layer functions in the PHY layer can include another part of functions of the PHY layer that are closer to the intermediate radio frequency side.

[0101] Meanwhile, the O-RAN system can also include the following functions / nodes:

[0102] Non-real time RIC (non-real time RAN intelligent controller): also sometimes referred to as: non-RT RIC or NRT RIC, used to implement non-real-time intelligent management of RAN functions. Capable of implementing AI / ML workflow including model training and model updating, and guiding applications / functions in nRT RIC based on policies.

[0103] Near real-time RIC: also sometimes referred to as: near-RT RIC or nRT RIC, used to implement near real-time intelligent management of RAN. Through data collection and related operations on the E2 interface, near real-time control and optimization of modules and resources of O-RAN are implemented.

[0104] The present application can be applied to the scenario where the base station transmits a sensing signal and the terminal device (UE) receives a backscatter signal. Please refer to FIG. 11, and the following will introduce a flow of the sensing method of the present application:

[0105] A01, the SF sends a sensing service request to the base station;

[0106] The SF sends a sensing service request to the base station, where the sensing service request refers to a specific service request initiated for the sensing function in the network, and the SF can be replaced by the SU.

[0107] It should be noted that step A01 can also not be performed.

[0108] A02, the base station sends a first sensing measurement configuration to the terminal device;

[0109] After the base station receives the sensing service request, the base station sends a first sensing measurement configuration to the terminal device, which includes a sensing measurement period and the number N of sensing tasks to be performed in each sensing measurement period, where N is greater than or equal to 1. Alternatively, the first sensing measurement period can only include the sensing measurement period, and the terminal device can determine N according to the sensing measurement period. In this application, in the scenario where the base station sends a sensing signal and the terminal device receives a return signal, performing a sensing task for the base station means sending a sensing signal, and performing a sensing task for the terminal device means receiving a return signal corresponding to the sensing signal; in the scenario where the base station receives a return signal and the terminal device sends a sensing signal, performing a sensing task for the terminal device means sending a sensing signal, and performing a sensing task for the base station means receiving a return signal corresponding to the sensing signal.

[0110] A03, the terminal device performs N sensing tasks in the sensing measurement period;

[0111] After the first sensing measurement configuration is issued, the terminal device performs N sensing tasks in the first sensing measurement period. In each sensing task, the base station sends a sensing signal to the terminal device, and the terminal device receives a return signal corresponding to the sensing signal.

[0112] A04, the terminal device obtains N sensing information corresponding to N sensing tasks, where the sensing information includes sensing measurement data or target information obtained according to the sensing task;

[0113] The sensing task is for a sensing target, and it is meaningful to perform sensing measurement only when the sensing target exists, otherwise, continuously performing the sensing task will become inefficient and will not bring any actual benefits to the system. When the terminal device and the base station continuously perform the sensing task, they will continuously consume resources (such as processor time, memory, storage space, etc.) and energy. These resources and energy can be used for other more meaningful tasks or operations, but are wasted due to the inefficient sensing task. In order to avoid wasting resources, the terminal device determines the sensing information corresponding to each sensing task according to the return signal corresponding to each sensing task in the N sensing tasks, where the sensing information can be sensing measurement data or target information further determined according to the sensing measurement data.

[0114] A05、if the N pieces of perception information satisfy the first condition, the terminal device sends first indication information to the base station;

[0115] The terminal device determines whether each of the aforementioned pieces of perception information satisfies a second condition, which can be set as a case where there is a benefit of the perception task. If the perception information is perception measurement data, the second condition is that the degree of change of the perception information compared with the perception information corresponding to the last perception task is greater than a first value. For an RVA spectrum, the change of the perception measurement data can be the change of distance or speed or angle; for point cloud data, the change of the perception measurement data can be the increase or decrease of points, or the change of the corresponding attribute of each point, including, for example, the speed or position of the point. Alternatively, if the perception information is target information, the second condition can also be that the perception information indicates the existence of a perception target or the existence of a perception target meeting a specific feature, such as a speed greater than a preset value. Then, the terminal device determines whether the N pieces of perception information satisfy the first condition, which can be set as a case where there is still a benefit of the perception task if the perception task continues to be performed. For example, the first condition is that M pieces of perception information satisfying the second condition are included in the N pieces of perception information, where M is less than or equal to N and greater than or equal to 1. Alternatively, the first condition can also be that M pieces of perception information satisfying the second condition are included in the last L pieces of perception information in the N pieces of perception information, where L is greater than or equal to 1 and greater than or equal to M. For example, N is 3, L is 1, and M is 1.

[0116] It should be noted that the aforementioned last L pieces of perception information refer to the last L pieces of perception information after sorting the order of the N pieces of perception information corresponding to the N times of perception tasks.

[0117] If the N pieces of perception information satisfy the first condition, the terminal device sends first indication information to the base station, and the first indication information is used to instruct the base station to send first information, which is used to instruct that P times of perception tasks are still performed in the perception measurement period, where P is greater than or equal to 1. In a possible implementation, the first information is a second perception measurement configuration, which is used to instruct that P times of perception tasks are still performed in the perception measurement period, where P is greater than or equal to 1. The second perception measurement configuration can directly instruct that P times of perception tasks need to be performed, or can instruct the time length during which the perception tasks need to be performed. Since the time length of performing each perception task is similar, the time length can be used to indirectly instruct the number of perception tasks. The second perception measurement configuration can be an RRC message, a MAC CE, or a DCI message.

[0118] Alternatively, the second perception measurement configuration can also be pre-configured in the terminal device, and the first information is indication information indicating that the second perception measurement configuration takes effect.

[0119] If not, the terminal device does not send the indication information, i.e., does not perform the sensing task in the sensing measurement period, until repeating the above operation in the next sensing measurement period.

[0120] A06, the terminal device receives the first information;

[0121] The terminal device receives the first information from the base station.

[0122] A07, the terminal device further performs P sensing tasks in the sensing measurement period according to the first information.

[0123] After receiving the first information, the terminal device further performs P sensing tasks in the sensing measurement period according to the first information. Similarly, the terminal device also acquires P sensing information corresponding to the P sensing tasks, and determines whether the P sensing information satisfies a third condition, the third condition being that P sensing information includes S sensing information satisfying the second condition, S being less than or equal to P and greater than or equal to 1. Alternatively, the third condition can also be that the last D sensing information in the P sensing information includes S sensing information satisfying the second condition, D being greater than or equal to 1, and D being greater than or equal to S. Exemplarily, P is 1, D is 1, and S is also 1. If the P sensing information satisfies the third condition, the second indication information is sent to the base station, the second indication information being used by the base station to send the second information, the second information being used to indicate that Q sensing tasks are further performed in the sensing measurement period, where Q is greater than or equal to 1. Similarly, the second information can be a third sensing measurement configuration, the third sensing measurement configuration being used to indicate that Q sensing tasks are further performed in the sensing measurement period. Alternatively, the third sensing measurement configuration can also be pre-configured in the terminal device, and the second information is indication information indicating that the third sensing measurement configuration is effective. If not, the terminal device does not send the indication information, i.e., does not perform the sensing task in the sensing measurement period, until repeating the above operation in the next sensing measurement period.

[0124] After receiving the second information from the base station, the terminal device further performs P sensing tasks in the sensing measurement period according to the second information. In a possible implementation, P and Q can be the same, and the terminal device can further acquire P pieces of sensing information corresponding to the P sensing tasks. If the P pieces of sensing information satisfy a third condition, the terminal device continues to send second indication information to the base station, so as to receive second information from the base station for instructing that the P sensing tasks are further performed in the sensing measurement period. In this way, the terminal device continues to trigger new P sensing tasks in the sensing measurement period according to the second information each time the terminal device receives the second information, and the P pieces of sensing information corresponding to the P sensing tasks satisfy the third condition, until the sensing measurement period ends or the P pieces of sensing information no longer satisfy the third condition, until the operation in the sensing measurement period is repeated in the next sensing measurement period.

[0125] In the present application, the lowest N sensing tasks are performed in a sensing measurement period. If the sensing information corresponding to the N sensing tasks satisfies a first condition, it is indicated that it is beneficial to continue to perform the sensing tasks in the sensing measurement period, so as to trigger the continued performance of the sensing tasks, to ensure that the actual sensing demand is met, otherwise the performance of the sensing tasks in the sensing measurement period is suspended until the next sensing measurement period, so as to achieve energy saving.

[0126] Please refer to FIG. 12, and the following begins to introduce another flow of the sensing method of the present application:

[0127] B01, the SF sends a sensing service request to the base station;

[0128] This step is similar to the foregoing step A01, and details are not described herein again.

[0129] B02, the base station sends first sensing measurement configuration to the terminal device;

[0130] This step is similar to the foregoing step A02, and details are not described herein again.

[0131] B03, the terminal device performs N sensing tasks in a sensing measurement period;

[0132] This step is similar to the foregoing step A03, and details are not described herein again.

[0133] B04, the terminal device acquires N pieces of sensing information corresponding to the N sensing tasks, and the sensing information includes sensing measurement data or target information obtained according to the sensing tasks;

[0134] This step is similar to the foregoing step A04, and details are not described herein again.

[0135] B05, the terminal device sends N pieces of sensing information to the base station;

[0136] B06, if the N pieces of sensing information satisfy a first condition, the base station sends first information to the UE;

[0137] The base station determines whether the N pieces of sensing information satisfy the first condition according to the aforementioned manner, and if so, sends the first information to the terminal device, which is similar to the aforementioned embodiments. If not, the base station does not send the first information, i.e., the terminal device does not perform the sensing task in the sensing measurement period, until repeating the above operation in the next sensing measurement period.

[0138] B07, the terminal device performs P sensing tasks in the sensing measurement period according to the first information.

[0139] After receiving the first information, the terminal device performs P sensing tasks in the sensing measurement period according to the first information. Similarly, the terminal device also obtains P pieces of sensing information corresponding to the P sensing tasks, and sends the P pieces of sensing information to the base station. The base station determines whether the P pieces of sensing information satisfy a third condition, which is that S pieces of sensing information satisfying the second condition are included in the P pieces of sensing information, S is less than or equal to P, and greater than or equal to 1. Alternatively, the third condition can also be that S pieces of sensing information satisfying the second condition are included in the last D pieces of sensing information in the P pieces of sensing information, D is greater than or equal to 1, and D is greater than or equal to S. For example, P is 1, D is 1, and S is also 1. If the P pieces of sensing information satisfy the third condition, the base station sends second information to the terminal device, the second information is used to indicate that Q sensing tasks are performed in the sensing measurement period, where Q is greater than or equal to 1. Similarly, the second information can be a third sensing measurement configuration, which is used to indicate that Q sensing tasks are performed in the sensing measurement period. Alternatively, the third sensing measurement configuration can be pre-configured in the terminal device, and the second information is indication information indicating that the third sensing measurement configuration is effective. If not, the base station does not send the second information, i.e., the sensing task is not performed in the sensing measurement period, until repeating the above operation in the next sensing measurement period.

[0140] After the terminal device receives the second information from the base station, the terminal device further performs P sensing tasks in the sensing measurement period according to the second information. In a possible implementation, P and Q can be the same, and the terminal device can further acquire P pieces of sensing information corresponding to the P sensing tasks and send the P pieces of sensing information to the base station. If the P pieces of sensing information satisfy a third condition, the base station continues to send the second information to the terminal device. In this way, the terminal device performs P sensing tasks in the sensing measurement period according to the second information each time the terminal device receives the second information, and sends corresponding P pieces of sensing information to the base station. If the P pieces of sensing information satisfy the third condition, the base station continues to send the second information to the terminal device. In this way, the terminal device constantly triggers new P sensing tasks in the sensing measurement period until the sensing measurement period ends, or the P pieces of sensing information no longer satisfy the third condition, until the next sensing measurement period repeats the operation in the sensing measurement period.

[0141] In this application, whether the new sensing task needs to be triggered is determined by the base station, thereby reducing the overhead of the terminal device.

[0142] Please refer to FIG. 13, and the following begins to introduce another flow of the sensing method of the application:

[0143] C01, the SF sends a sensing service request to the base station;

[0144] This step is similar to the foregoing step A01, and details are not described herein again.

[0145] C02, the base station sends a sensing measurement configuration to the terminal device;

[0146] After the base station receives the sensing service request, the base station sends a sensing measurement configuration to the terminal device, and the sensing measurement configuration includes a sensing measurement period and a number N of sensing tasks that need to be performed in each sensing measurement period, where N is greater than or equal to 1.

[0147] C03, the terminal device performs N sensing tasks in the sensing measurement period;

[0148] This step is similar to the foregoing step A03, and details are not described herein again.

[0149] C04, the terminal device acquires N pieces of sensing information corresponding to the N sensing tasks, and the sensing information includes sensing measurement data or target information obtained according to the sensing measurement;

[0150] This step is similar to the foregoing step A04, and details are not described herein again.

[0151] C05, if the N pieces of sensing information satisfy a first condition, P sensing tasks are further performed in the sensing measurement period, where P is greater than or equal to 1.

[0152] The terminal device determines whether each of the aforementioned perception information satisfies a second condition, which is similar to the first condition described in the foregoing embodiments. Then, the terminal device determines whether the N perception information satisfies a first condition, which is similar to the first condition described in the foregoing embodiments.

[0153] If the N perception information satisfies the first condition, the terminal device further performs P perception tasks in the perception measurement period, where P is greater than or equal to 1. Optionally, the terminal device can further send indication information to the base station, where the indication information is used to instruct the base station to send perception signals corresponding to the P perception tasks. If not, the terminal device does not perform perception tasks in the perception measurement period, and repeats the above operation in the next perception measurement period.

[0154] The terminal device also acquires P perception information corresponding to the P perception tasks, and determines whether the P perception information satisfies a third condition, which is similar to the first condition described in the foregoing embodiments. If the P perception information satisfies the third condition, the terminal device further performs Q perception tasks in the perception measurement period. In a possible implementation, P and Q can be the same, and the terminal device can further acquire P perception information corresponding to the P perception tasks. If the P perception information satisfies the third condition, the terminal device continues to perform the P perception tasks in the perception measurement period. In this way, the terminal device continues to trigger the performance of new P perception tasks in the perception measurement period until the end of the perception measurement period, or the P perception information no longer satisfies the third condition, and repeats the operation in the perception measurement period in the next perception measurement period. Optionally, the terminal device can further send indication information to the base station, where the indication information is used to instruct the base station to send perception signals corresponding to the Q perception tasks.

[0155] The present application can also be applied to a scenario where the terminal device sends perception signals and the base station receives the perception signals. Please refer to FIG. 14, and the following describes another flow of the perception method of the present application:

[0156] D01, the terminal device sends a perception service request to the base station;

[0157] This step is similar to the step A01 described above, and details are not repeated here.

[0158] D02, the base station sends a first perception measurement configuration to the terminal device;

[0159] This step is similar to the step A02 described above, and details are not repeated here.

[0160] D03, the terminal device performs N perception tasks in a perception measurement period;

[0161] After the first sensing measurement configuration is issued, the terminal device performs N times of sensing measurement in the first sensing measurement period. In each sensing measurement, the terminal device sends a sensing signal to the base station, and the base station receives a corresponding echo signal of the sensing signal.

[0162] D04, the base station acquires N pieces of sensing information corresponding to the N times of sensing tasks, the sensing information including sensing measurement data or target information obtained according to the sensing tasks;

[0163] The manner in which the base station acquires the sensing information is similar to the manner in which the terminal device acquires the sensing information in the foregoing step A04, and details are not described herein again.

[0164] D05, if the N pieces of sensing information satisfy a first condition, the base station sends first information to the UE;

[0165] This step is similar to the foregoing step B06, and details are not described herein again.

[0166] D06, the terminal device further performs P times of sensing tasks in the sensing measurement period according to the first information.

[0167] After the terminal device receives the first information, it further performs P times of sensing tasks in the sensing measurement period according to the first information. Similarly, the base station also acquires P pieces of sensing information corresponding to the P times of sensing tasks, and determines whether the P pieces of sensing information satisfy a third condition. If the P pieces of sensing information satisfy the third condition, the base station sends second information to the terminal device, which is similar to the foregoing description. If the third condition is not satisfied, the base station does not send the second information, that is, the terminal device does not perform sensing tasks in the sensing measurement period, and repeats the foregoing operation in the next sensing measurement period.

[0168] After the terminal device receives the second information from the base station, it further performs P times of sensing tasks in the sensing measurement period according to the second information. In a possible implementation, P and Q can be the same, the base station can also acquire P pieces of sensing information corresponding to the P times of sensing tasks, and if the P pieces of sensing information satisfy the third condition, the base station continues to send the second information to the terminal device. By analogy, that is, each time the terminal device receives the second information, it will further perform P times of sensing tasks in the sensing measurement period according to the second information, and if P pieces of sensing information corresponding to the P times of sensing tasks satisfy the third condition, the base station continues to send the second information to the terminal device, and in this way, the terminal device is triggered to perform new P times of sensing tasks in the sensing measurement period, until the sensing measurement period ends, or the P pieces of sensing information no longer satisfy the third condition, and the base station no longer sends the second information, until the operation in the sensing measurement period is repeated in the next sensing measurement period.

[0169] Please refer to FIG. 15, and the following begins to introduce another flow of the sensing method of the present application:

[0170] E01, the SF sends a sensing service request to the base station;

[0171] E02, the base station sends a sensing measurement configuration to the terminal device;

[0172] After the base station receives the sensing service request, the base station sends a sensing measurement configuration to the terminal device, which includes a first sensing measurement period and a second sensing measurement period. The first sensing measurement period is a normal sensing measurement period, and the second sensing measurement period is a relaxed sensing measurement period, that is, the second sensing measurement period is greater than the first sensing measurement period, or the first sensing measurement period is a default sensing measurement period. It should be noted that the first sensing measurement period and the second sensing measurement period can be directly indicated in the sensing measurement configuration; or only the first sensing measurement period is indicated, and the second sensing measurement period is indirectly indicated by a multiple, for example, the second sensing measurement period is 4 times or 2 times the first sensing measurement period.

[0173] E03, the terminal device receives a back signal according to the first sensing measurement period;

[0174] In the present embodiment, the base station and the terminal device will perform a sensing task at the beginning of the sensing measurement period, that is, the base station sends a sensing signal at the beginning of the sensing measurement period, and correspondingly, the terminal device also receives a back signal corresponding to the sensing signal at the beginning of the sensing measurement period until the end of the current sensing measurement period, and continues to perform the sensing task at the beginning of the next sensing measurement period. Please refer to FIG. 16, after the sensing measurement configuration is issued, since the first sensing measurement period is the default sensing measurement period, the first sensing measurement period of the terminal device and the base station is the first sensing measurement period.

[0175] E04, the terminal device determines sensing information according to the back signal;

[0176] After the terminal device receives the back signal, the terminal device processes the back signal to generate sensing information, which can be sensing measurement data or target information.

[0177] E05, the terminal device determines that the sensing information satisfies a second condition;

[0178] The terminal device determines whether the sensing information corresponding to the sensing task satisfies a second condition (the same as the second condition in the foregoing embodiment) in each sensing measurement period. If the second condition is not satisfied, the terminal device determines that the next sensing measurement period is a second sensing measurement period. If the second condition is satisfied, the terminal device determines that the next sensing measurement period is a first sensing measurement period. If the next sensing measurement period is inconsistent with the current sensing measurement period, the terminal device sends indication information to the base station, where the indication information is used to instruct the base station to switch the sensing measurement period to the sensing measurement period determined by the terminal device. In this step, the terminal device determines that the sensing measurement data does not satisfy the second condition, and thus determines that the next sensing measurement period is the second sensing measurement period.

[0179] E06. The terminal device sends indication information to the base station.

[0180] The indication information is used to instruct the base station to switch to sending the sensing signal according to the second sensing measurement period, and the terminal device switches the sensing measurement period to the second sensing measurement period.

[0181] E07. The terminal device receives the echo signal corresponding to the sensing signal sent by the base station according to the second sensing measurement period.

[0182] Referring to FIG. 17, after the end of the first first sensing measurement period, the terminal device and the base station switch the next sensing measurement period to the second sensing measurement period because the sensing information does not satisfy the second condition. Of course, if the terminal device determines that the sensing information satisfies the second condition in the foregoing step E05, the step E06 is not performed, and thus the sensing measurement period of the terminal device and the base station does not change. After the end of the first first sensing measurement period, the next sensing measurement period of the terminal device and the base station is still the first sensing measurement period.

[0183] In a possible implementation, the sensing measurement period of the base station can also remain unchanged, that is, the step E06 can also not be performed.

[0184] In this application, the terminal device can flexibly switch the sensing measurement period according to the sensing measurement data, or instruct the base station to synchronously switch the sensing measurement period, thereby reducing power consumption and saving communication resources.

[0185] Referring to FIG. 18, another flow of the sensing method of the application will be introduced as follows:

[0186] F01. The SF sends a sensing service request to the base station.

[0187] This step is similar to the foregoing step E01, and details are not described herein again.

[0188] F02. The base station sends a sensing measurement configuration to the terminal device.

[0189] This step is similar to the aforementioned step E02, and details are not repeated here.

[0190] F03, the terminal device receives the echo signal according to the first sensing measurement period;

[0191] This step is similar to the aforementioned step E03, and details are not repeated here.

[0192] F04, the terminal device determines the sensing information according to the echo signal;

[0193] This step is similar to the aforementioned step E04, and details are not repeated here.

[0194] F05, the terminal device sends the sensing information to the base station;

[0195] After the terminal device determines the sensing information in each sensing measurement period, the terminal device sends the sensing information to the base station.

[0196] F06, the base station determines that the sensing information meets the second condition;

[0197] The base station determines whether the sensing information meets the second condition. After the base station receives the sensing information from the terminal device in each sensing measurement period, the base station determines whether the sensing information meets the second condition. If it does not meet the second condition, the base station determines that the next sensing measurement period is the second sensing measurement period. If it meets the second condition, the base station determines that the next sensing measurement period is the first sensing measurement period. Furthermore, if the next sensing measurement period is inconsistent with the current sensing measurement period, the base station sends indication information to the terminal device. The indication information is used to instruct the terminal device to switch the sensing measurement period to the sensing measurement period determined by the base station. For example, in this step, the base station determines that the sensing information does not meet the second condition, so the base station determines that the next sensing measurement period is the second sensing measurement period.

[0198] F07, the base station sends indication information to the terminal device;

[0199] The indication information is used to instruct the terminal device to switch to receiving the sensing signal according to the second sensing measurement period. At the same time, the base station switches the sensing measurement period to the second sensing measurement period.

[0200] F08, the terminal device receives the echo signal according to the second sensing measurement period.

[0201] This step is similar to the aforementioned step E07, and details are not repeated here.

[0202] Please refer to FIG. 19, and the following starts to introduce another flow of the sensing method of the present application:

[0203] G01, the SF sends a sensing service request to the base station;

[0204] This step is similar to the aforementioned step E01, and details are not repeated here.

[0205] G02, the base station sends a sensing measurement configuration to the terminal device;

[0206] The sensing measurement configuration is similar to the aforementioned step E02, and details are not repeated here.

[0207] G03, the terminal device sends a sensing signal to the base station according to a first sensing measurement period;

[0208] G04, the base station determines sensing information according to the echo signal;

[0209] G05, the base station determines that the sensing information does not satisfy a second condition;

[0210] This step is similar to the aforementioned step F06, and details are not repeated here.

[0211] G06, the base station sends indication information to the terminal device;

[0212] This step is similar to the aforementioned step F07, and details are not repeated here.

[0213] G07, the terminal device sends a sensing signal to the base station according to a second sensing measurement period.

[0214] In this application, the indication information and the sensing information sent by the terminal device to the base station can be sent to the DU of the base station. Specifically, the above information can be contained in the MAC CE or the DCI, the RLC control PDU, can be carried on the PUCCH or the PUSCH, and can be sent as a kind of UCI. After the DU of the base station receives the above information, it performs the operation as performed by the base station in the foregoing embodiments.

[0215] Alternatively, the terminal device can also send the indication information to the CU of the base station. These information is contained in the PDCP control PDU, or the RRC message, can be carried in the SRB or the DRB, or can be carried in the sensing control signaling. After the CU of the base station receives the above information, it instructs the DU of the base station to perform the operation as performed by the base station in the foregoing embodiments.

[0216] Alternatively, the terminal device can also send the sensing information to the CU of the base station. The CU of the base station performs corresponding judgment according to the sensing information, and instructs the DU of the base station to perform the operation as performed by the base station in the foregoing embodiments based on the result of the judgment.

[0217] Alternatively, the terminal device can also send the indication information to the SF or the SU, which is carried in the perception control signaling. After receiving the above information, the SF or the SU of the base station instructs the DU of the base station to perform the operation as performed by the base station in the foregoing embodiment.

[0218] Alternatively, the terminal device can also send the perception information to the SF or the SU of the base station, and the SF or the SU of the base station performs corresponding judgment according to the perception information, and instructs the DU of the base station to perform the operation as performed by the base station in the foregoing embodiment based on the result of the judgment.

[0219] The method in the application is introduced above, and the device in the application is introduced below:

[0220] Referring to FIG. 20, the terminal device 2000 in the application includes an obtaining unit 2001, a processing unit 2002, and a sending unit 2003.

[0221] The obtaining unit 2001 is configured to receive a first perception measurement configuration from a network device, the first perception measurement configuration being used to indicate a perception measurement period and perform N perception tasks in the perception measurement period, N being greater than or equal to 1.

[0222] The processing unit 2002 is configured to perform the N perception tasks in the perception measurement period.

[0223] The obtaining unit 2001 is further configured to obtain N perception information corresponding to the N perception tasks, the perception information including perception measurement data or target information obtained according to the perception tasks.

[0224] The sending unit 2003 is configured to send first indication information to the network device if the N perception information satisfies a first condition, the first indication information being used for the network device to send a second perception measurement configuration, the second perception configuration being used to indicate that P perception tasks are further performed in the perception measurement period, P being greater than or equal to 1.

[0225] The obtaining unit 2001 is configured to receive the second perception measurement configuration.

[0226] The processing unit 2002 is further configured to further perform the P perception tasks in the perception measurement period according to the second perception measurement configuration.

[0227] The terminal device in the application includes an obtaining unit and a processing unit.

[0228] The obtaining unit is configured to receive a perception measurement configuration from a network device, the perception measurement configuration being used to indicate a perception measurement period and perform N perception tasks in the perception measurement period, N being greater than or equal to 1.

[0229] The processing unit is configured to perform the N perception tasks in the perception measurement period.

[0230] The acquisition unit is further configured to acquire N pieces of sensing information corresponding to the N sensing tasks, the sensing information comprising sensing measurement data obtained according to sensing measurement or target information.

[0231] The processing unit is further configured to perform P sensing tasks in the sensing measurement period if the N pieces of sensing information satisfy a first condition, P being greater than or equal to 1.

[0232] The embodiments of the present application further provide a computer program product containing instructions. The computer program product can be software or a program product containing instructions, capable of running on a computing device or being stored in any available medium. When the computer program product runs on at least one computer, the at least one computer is caused to execute the method in the foregoing various embodiments.

[0233] The embodiments of the present application further provide a computer readable storage medium. The computer readable storage medium can be any available medium or a data center containing one or more available media that can be stored by a computing device. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk), etc. The computer readable storage medium contains instructions, which instruct the computer to execute the method in the foregoing various embodiments.

[0234] FIG. 21 is a structural schematic diagram of a device S00 provided by the embodiments of the present application. The device S00 can be a terminal device or a network device, and can include one or more central processing units (CPUs) S01 and a memory S05, which stores one or more application programs or data.

[0235] The memory S05 can be volatile storage or persistent storage. The programs stored in the memory S05 can include one or more modules, each of which can include a series of instruction operations. Furthermore, the central processing unit S01 can be configured to communicate with the memory S05 and execute the series of instruction operations in the memory S05 on the device S00.

[0236] The device S00 can also include one or more power supplies S02, one or more wired or wireless network interfaces S03, one or more input / output interfaces S04, and / or one or more operating systems. The central processing unit S01 can execute the operations of the terminal device or the network device in the foregoing various embodiments, which are not described here in detail.

[0237] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0238] In several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0239] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0240] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0241] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part of the prior art that makes a contribution or the whole or part of the technical solutions can be embodied in the form of a software product, which is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, read-only memory), a random access memory (RAM, random access memory), a magnetic disk or an optical disk, and various program code storage media.

Claims

1. A sensing method, characterized in that, include: Receive a first sensing measurement configuration from a network device, the first sensing measurement configuration being used to indicate a sensing measurement period and to perform N sensing tasks within the sensing measurement period, the N being greater than or equal to 1; Perform N sensing tasks within the sensing measurement cycle; Obtain N pieces of perception information corresponding to the N perception tasks, wherein the perception information includes perception measurement data or target information obtained based on the perception tasks; If the N sensing information satisfies the first condition, then a first indication information is sent to the network device. The first indication information is used by the network device to send a second sensing measurement configuration. The second sensing configuration is used to indicate that P sensing tasks will be performed again within the sensing measurement period, where P is greater than or equal to 1. Receive the second sensing measurement configuration; According to the second sensing measurement configuration, the P sensing tasks are also performed within the sensing measurement cycle.

2. The method according to claim 1, characterized in that, The first condition is that among the N pieces of perceived information, M pieces of perceived information satisfy the second condition, where M is less than or equal to N and greater than or equal to 1; or The first condition is that among the last L of the N sensing information, M of the sensing information satisfy the second condition, where L is greater than or equal to 1 and greater than or equal to M.

3. The method according to claim 2, characterized in that, If the perceived information is perceived measurement data, then the second condition is that the degree of change of the perceived information compared to the perceived information corresponding to the previous perceived task is greater than the first value. If the perceived information is target information, then the second condition is that the perceived information indicates the existence of a perceived target or the existence of a perceived target that meets specific characteristics.

4. The method according to claim 3, characterized in that, The method further includes: Obtain the P sensing information corresponding to the P sensing tasks; If the P sensing information pieces satisfy the third condition, then a second indication information is sent to the network device. This second indication information is used by the network device to send a third sensing measurement configuration. The third sensing measurement configuration indicates that Q sensing tasks will be performed within the sensing measurement period, where Q is greater than or equal to 1. The third condition is that the P sensing information pieces include S sensing information pieces that satisfy the second condition, where S is less than or equal to P and greater than or equal to 1; or The third condition is that among the last D of the P pieces of sensing information, S pieces of sensing information satisfy the second condition, where D is greater than or equal to 1 and D is greater than or equal to S.

5. A sensing method, characterized in that, include: Receive a sensing measurement configuration from a network device, the sensing measurement configuration being used to indicate a sensing measurement period and to perform N sensing tasks within the sensing measurement period, where N is greater than or equal to 1; Perform N sensing tasks within the sensing measurement cycle; Obtain N pieces of perception information corresponding to the N perception tasks, wherein the perception information includes perception measurement data or target information obtained based on the perception measurement; If the N sensing information satisfies the first condition, then P sensing tasks are performed within the sensing measurement cycle, where P is greater than or equal to 1.

6. The method according to claim 5, characterized in that, The first condition is that among the N pieces of perceived information, M pieces of perceived information satisfy the second condition, where M is less than or equal to N and greater than or equal to 1; or The first condition is that among the last L of the N sensing information, M of them satisfy the second condition, where L is greater than or equal to 1 and L is greater than or equal to M.

7. The method according to claim 6, characterized in that, If the perceived information is perceived measurement data, then the second condition is that the degree of change of the perceived information compared to the perceived information corresponding to the previous perceived task is greater than the first value. If the perceived information is target information, then the second condition is that the perceived information indicates the existence of a perceived target or the existence of a perceived target that meets specific characteristics.

8. The method according to claim 7, characterized in that, The method further includes: Obtain the perception information corresponding to the P perception tasks; If the sensing information corresponding to the P sensing tasks satisfies the third condition, then Q more sensing tasks are executed within the sensing measurement cycle, where Q is greater than or equal to 1. The third condition is that among the P sensing information pieces, S of the sensing information pieces satisfy the second condition, where S is less than or equal to P and greater than or equal to 1; or The third condition is that among the last D of the P pieces of sensing information, S pieces of sensing information satisfy the second condition, where D is greater than or equal to 1 and D is greater than or equal to S.

9. The method according to any one of claims 5 to 8, characterized in that, The method further includes: Send indication information to the network device, the indication information being used to instruct the network device to send a sensing signal.

10. A sensing method, characterized in that, include: Send a first perception measurement configuration to the UE, the perception measurement configuration being used to indicate a perception measurement period and to perform N perception tasks within the perception measurement period, where N is greater than or equal to 1; Determine N pieces of perception information corresponding to the N perception tasks, wherein the perception information includes perception measurement data or target information obtained based on the perception measurement; If the N sensing information satisfies the first condition, a second sensing measurement configuration is sent to the UE. The second sensing configuration is used to instruct the UE to perform P more sensing measurements within the sensing measurement period, where P is greater than or equal to 1.

11. The method according to claim 10, characterized in that, The first condition is that among the N pieces of perceived information, M pieces of perceived information satisfy the second condition, where M is less than or equal to N and greater than or equal to 1; or The first condition is that among the last L of the N sensing information, M of them satisfy the second condition, where L is greater than or equal to 1 and L is greater than or equal to M.

12. The method according to claim 11, characterized in that, If the perceived information is perceived measurement data, then the second condition is that the degree of change of the perceived information compared to the perceived information corresponding to the previous perceived task is greater than the first value. If the perceived information is target information, then the second condition is that the perceived information indicates the existence of a perceived target or the existence of a perceived target that meets specific characteristics.

13. The method according to claim 12, characterized in that, The method further includes: Determine the sensing information corresponding to the P sensing tasks; If the sensing information corresponding to the P sensing tasks satisfies the third condition, a third sensing measurement configuration is sent to the UE. This third sensing measurement configuration indicates that Q more sensing tasks will be performed within the sensing measurement period, where Q is greater than or equal to 1. The third condition is that the P sensing information includes S sensing information that satisfies the second condition, where S is less than or equal to P and greater than or equal to 1; or The third condition is that among the last D of the P pieces of sensing information, S pieces of sensing information satisfy the second condition, where D is greater than or equal to 1 and D is greater than or equal to S.

14. The method according to claim 13, characterized in that, The determination of the N pieces of perception information corresponding to the N perception tasks includes: Receive the N sensing information from the UE; The determination of the sensing information corresponding to the P sensing tasks includes: Receive sensing information corresponding to the P sensing tasks from the UE.

15. A terminal device (UE), characterized in that, It includes a processor and a memory, the processor being configured to execute instructions stored in the memory to cause the UE to perform the method as described in any one of claims 1 to 9.

16. A network device, characterized in that, It includes a processor and a memory, the processor being configured to execute instructions stored in the memory to cause the UE to perform the method as described in any one of claims 10 to 14.

17. A computer program product containing instructions, characterized in that, When the instructions are executed by a computer, the computer performs the method as claimed in any one of claims 1 to 14.

18. A computer-readable storage medium, characterized in that, It includes computer program instructions, which, when executed by a computer, cause the computer to perform the method as claimed in any one of claims 1 to 14.

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