Network-side device, electronic device and methods for wireless communication

Abstract

The present application relates to a network-side device, electronic device and methods for wireless communication. The network-side device for wireless communication comprises a processing circuit, which is configured to: for a target object which is within a sensing coverage range of the network-side device, but has not established a communication connection with the network-side device, hand over a target tracking task for the target object to a network-side device that awaits a handover and that the target object is about to enter a sensing coverage range thereof, so that the network-side device that awaits a handover performs target tracking on the target object, wherein the processing circuit is configured to send to the network-side device that awaits a handover identification information for identifying the target object, so that the network-side device that awaits a handover identifies the target object on the basis of the identification information.

Description

Network side device and electronic device and method for wireless communication

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 2, 2023, with application number 202310964751.4 and invention name “Network side device and electronic device and method for wireless communication”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the field of wireless communication technology, and more particularly to a network-side device, an electronic device, and a method for wireless communication, and more particularly to a network-side device, an electronic device, and a method for wireless communication related to a target tracking task. Background Art

[0003] The integration of communication and perception is a key research direction for enhancing the value of core communication networks. It holds promising application prospects in smart homes, intelligent transportation, environmental monitoring, and hazard warning. Therefore, integrated communication and perception technology is currently a hot research area. In integrated communication and perception applications, roadside base stations or roadside units (RSUs) monitoring road conditions is a typical application scenario, offering high practical value in scenarios such as traffic flow control, vehicle platooning, collision warning, and fleeing vehicle tracking. Among the typical applications of roadside base station interawareness, target tracking is a typical task. This task requires the RSUs or RSUs to continuously acquire sensory information such as the location and speed of a specific target through sensing signals, and even to obtain the target's movement path over extended periods of time.

[0004] In target tracking services, target movement often crosses base stations or roadside units. To ensure service continuity (and to meet long-term target tracking requirements), target tracking service handover is necessary. This means that target tracking service continuity in scenarios where the target moves across base stations or roadside units is a must-solve issue due to the long duration of the service and the large range of target activity. However, target tracking service handover requires target re-identification, so the communication service handover process cannot be used.

[0005] Traditional telepresence systems typically use echo delay ranging and Doppler effect speed measurement. However, the Doppler effect can only measure the radial velocity of the target relative to the base station. For roadside base stations or roadside units, the target's speed along the road (the main component is the tangential velocity) is usually the information of greater concern in the application. Therefore, Doppler speed measurement can lead to large speed measurement errors, necessitating other solutions to achieve the speed measurement required by the business. Existing solutions use single-beam angle information combined with ranging information for positioning and speed measurement. This method has low positioning accuracy, resulting in low speed measurement accuracy, and the accuracy is significantly affected by the beam width. Alternatively, the target's speed along the road is estimated based on radial velocity based on geometric relationships. This method is significantly affected by angle estimation errors and will have large errors in the estimated value when the target speed is not strictly along the road. Therefore, a high-precision target tracking method is needed to meet the speed measurement business requirements.

[0006] Summary of the Invention

[0007] A brief overview of the present invention is provided below to provide a basic understanding of certain aspects of the present invention. It should be understood that this overview is not an exhaustive overview of the present invention. It is not intended to identify key or important aspects of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is simply to present certain concepts in a simplified form as a prelude to the more detailed description discussed later.

[0008] According to one aspect of the present disclosure, a network-side device for wireless communication is provided, comprising a processing circuit. The processing circuit is configured to: for a target object within the sensing coverage range of the network-side device but not having established a communication connection with the network-side device, transfer a target tracking task for the target object to a to-be-handed-over network-side device, into whose sensing coverage range the target object is about to enter, so that the to-be-handed-over network-side device can perform target tracking on the target object. The processing circuit is configured to send identification information for identifying the target object to the to-be-handed-over network-side device, so that the to-be-handed-over network-side device can identify the target object based on the identification information. According to embodiments of the present disclosure, target tracking service continuity can be ensured.

[0009] According to one aspect of the present disclosure, an electronic device for wireless communication is provided, including a processing circuit. The processing circuit is configured to: sense a target object that is within a sensing coverage range of a network device providing services to the electronic device but has not established a communication connection with the network device to obtain sensing information about the target object, and transmit the sensing information to the network device so that the network device can track the target object based on the sensing information. According to an embodiment of the present disclosure, the electronic device can perform cooperative sensing with the network device providing services to the electronic device.

[0010] According to one aspect of the present disclosure, a method for wireless communication performed by a network-side device is provided, comprising: for a target object that is within the perception coverage of the network-side device but has not established a communication connection with the network-side device, transferring the target tracking task for the target object to a to-be-transferred network-side device whose perception coverage the target object is about to enter, so that the to-be-transferred network-side device can perform target tracking on the target object, wherein the network-side device sends identification information for identifying the target object to the to-be-transferred network-side device, so that the to-be-transferred network-side device can identify the target object based on the identification information.

[0011] According to one aspect of the present disclosure, a method for wireless communication performed by an electronic device is provided, comprising: sensing a target object that is within a perception coverage range of a network-side device providing services for the electronic device but has not established a communication connection with the network-side device to obtain perception information about the target object, and sending the perception information to the network-side device so that the network-side device can track the target object based on the perception information.

[0012] According to other aspects of the present invention, a computer program code and a computer program product for implementing the above-mentioned method for wireless communication, as well as a computer-readable storage medium having the computer program code for implementing the above-mentioned method for wireless communication recorded thereon are also provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to further illustrate the above and other advantages and features of the present invention, the following is a further detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings, together with the detailed description below, are included in this specification and form a part of this specification. Elements with the same function and structure are represented by the same reference numerals. It should be understood that these drawings only depict typical examples of the present invention and should not be regarded as limiting the scope of the present invention. In the drawings:

[0014] FIG1 shows a functional module block diagram of a network-side device for wireless communication according to an embodiment of the present disclosure;

[0015] FIG2 is a schematic diagram illustrating a sensing service of a network-side device according to an embodiment of the present disclosure;

[0016] FIG3 is a schematic diagram illustrating target tracking and broadcast warning performed by a network-side device according to an embodiment of the present disclosure;

[0017] FIG4 shows an example of a flow chart of a service initiator requesting a target tracking service;

[0018] FIG5 is a schematic diagram illustrating a target tracking channel model;

[0019] FIG6 is a diagram illustrating an example of target tracking handover according to an embodiment of the present disclosure;

[0020] FIG7 is a schematic diagram illustrating an example of a target tracking service flow according to an embodiment of the present disclosure;

[0021] FIG8 is a flow chart showing an example of a communication service transfer in the prior art;

[0022] FIG9 is a flowchart illustrating an example of target re-identification according to an embodiment of the present disclosure;

[0023] 10 is a flowchart illustrating an example of target tracking task transfer based on the Xn interface according to an embodiment of the present disclosure;

[0024] 11 is a flowchart illustrating an example of target tracking task transfer based on the N2 interface according to an embodiment of the present disclosure;

[0025] FIG12 is a flowchart illustrating an example of target tracking according to an embodiment of the present disclosure;

[0026] FIG13 is a schematic diagram showing a geometric correction speed measurement solution in the prior art;

[0027] FIG14 is a schematic diagram illustrating an example of multi-beam target tracking according to an embodiment of the present disclosure;

[0028] FIG15 is a schematic diagram illustrating an example of multi-beam central axis adjustment according to an embodiment of the present disclosure;

[0029] FIG16 is a schematic diagram illustrating an example of adaptive dual-beam angle adjustment according to an embodiment of the present disclosure;

[0030] FIG17 is a schematic diagram illustrating an example of adaptive dual-beam central axis direction adjustment according to an embodiment of the present disclosure;

[0031] FIG18 is an example diagram showing positioning estimation errors at different signal-to-noise ratios using dual-beam target tracking according to an embodiment of the present disclosure;

[0032] FIG19 is an example diagram showing velocity estimation errors at different signal-to-noise ratios using dual-beam target tracking according to an embodiment of the present disclosure;

[0033] FIG20 is an example flow chart illustrating cooperative sensing according to an embodiment of the present disclosure;

[0034] FIG21 is a schematic diagram illustrating tracking a target object and processing tracking data according to an embodiment of the present disclosure;

[0035] FIG22 shows a functional module block diagram of an electronic device for wireless communication according to another embodiment of the present disclosure;

[0036] FIG23 shows a flowchart of a method for wireless communication performed by a network-side device according to an embodiment of the present disclosure;

[0037] FIG24 shows a flowchart of a method for wireless communication performed by an electronic device according to another embodiment of the present disclosure;

[0038] FIG25 is a block diagram showing a first example of a schematic configuration of an eNB or gNB to which the technology of the present disclosure may be applied;

[0039] FIG26 is a block diagram showing an example of a schematic configuration of a smartphone to which the technology of the present disclosure can be applied;

[0040] FIG27 is a block diagram showing an example of a schematic configuration of a car navigation device to which the technology of the present disclosure can be applied; and

[0041] 28 is a block diagram of an exemplary structure of a general-purpose personal computer in which methods and / or apparatuses and / or systems according to embodiments of the present invention may be implemented. DETAILED DESCRIPTION

[0042] Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. For the sake of clarity and conciseness, not all features of an actual implementation are described in this specification. However, it should be understood that in the process of developing any such actual implementation, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting system and business-related constraints, which may vary from implementation to implementation. Furthermore, it should be understood that while development work may be complex and time-consuming, it will be a routine task for those skilled in the art who benefit from this disclosure.

[0043] It is also necessary to explain here that, in order to avoid obscuring the present invention due to unnecessary details, the accompanying drawings only show the device structure and / or processing steps that are closely related to the solution according to the present invention, while other details that are not closely related to the present invention are omitted.

[0044] FIG1 shows a functional module block diagram of a network-side device 100 for wireless communication according to an embodiment of the present disclosure.

[0045] As shown in Figure 1, the network side device 100 includes: a processing unit 101, which can be configured to transfer the target tracking task for the target object to the to-be-transferred network side device whose perception coverage the target object is about to enter, for a target object that is within the perception coverage of the network side device 100 but has not established a communication connection with the network side device 100, so that the to-be-transferred network side device can track the target object; and a providing unit 103, which can be configured to send identification information for identifying the target object to the to-be-transferred network side device, so that the to-be-transferred network side device can identify the target object based on the identification information.

[0046] The processing unit 101 and the providing unit 103 may be implemented by one or more processing circuits, which may be implemented as chips or processors, for example. Furthermore, it should be understood that the various functional units in the network-side device 100 shown in FIG1 are merely logical modules divided according to the specific functions they implement, and are not intended to limit specific implementation methods.

[0047] The network side device 100 can be set on the base station side or communicatively connected to the base station, or can be set on the road side unit side or communicatively connected to the road side unit station. Here, it should also be pointed out that the network side device 100 can be implemented at the chip level, or it can also be implemented at the device level. For example, the network side device 100 can work as a base station or a road side unit itself, and can also include external devices such as memory, transceiver (not shown), etc. The memory can be used to store programs and related data information that need to be executed by the network side device 100 to implement various functions. The transceiver may include one or more communication interfaces to support communication with different devices (for example, UE, base station, road side unit, etc.), and the implementation form of the transceiver is not specifically limited here.

[0048] As an example, the base station may be, for example, an eNB or a gNB.

[0049] The wireless communication system according to the present disclosure may be a system that includes a perception function and a communication function. For example, the wireless communication system according to the present disclosure may be a 5G NR (New Radio) communication system, a 5G+ communication system, or a 6G communication system. Furthermore, the wireless communication system according to the present disclosure may include a non-terrestrial network (NTN). Optionally, the wireless communication system according to the present disclosure may also include a terrestrial network (TN). In addition, those skilled in the art will appreciate that the wireless communication system according to the present disclosure may also be a 4G or 3G communication system. In the following, an Integrated Sensing and Communication (ISAC) system (referred to as an ISAC system) is taken as an example for description.

[0050] In target tracking, the target object is typically not connected to the network, so it cannot be identified by network address and, therefore, the communication service handover process cannot be used. Handover of the target tracking task (also called the target tracking service) requires the target object to be re-identified by the network device to be handed over (i.e., target re-identification).

[0051] According to the network side device 100 of the embodiment of the present disclosure, when the target object moves continuously in the scenario of crossing base stations or roadside units, even if the target object has not established a communication connection with the network side device 100, the network side device to be transferred can still identify the target object based on the identification information and thus track the target object, thereby ensuring the effectiveness and continuity of the target tracking service.

[0052] As an example, the network side device 100 may be a base station. For example, the base station may be set on the ground, an airship, a drone, etc., and the target object may be set on the ground, an airship, a drone, etc.

[0053] As an example, the network-side device 100 may be a roadside unit, for example, which may be installed on a street lamp.

[0054] In the following, for simplicity, the network side device 100 is described as a base station. Sometimes the target object is referred to as an object or a tracked target, and the target tracking task is sometimes referred to as a target tracking service.

[0055] Before introducing the target tracking task transfer of the network side device 100, a brief introduction to target tracking performed by the network side device 100 is first given.

[0056] The synesthesia system integrates the perception service into the communication system, enables the perception service with the help of the communication core network, and can enhance the added value of the communication network. The roadside base station application is a typical application scenario of the synesthesia system. In this scenario, the base station is deployed on the side of the road, and the cell coverage is mainly the traffic road. The main communication service of the roadside base station is to provide communication services to users on the traffic road, for example, to provide network services to pedestrians or vehicle passengers on the road, and to provide vehicle formation networking or information distribution services to formation vehicles; the main perception service of the roadside base station is to monitor the traffic flow on the road, for example, road traffic flow statistics, road congestion judgment, suspicious vehicle tracking, dangerous vehicle collision warning, etc. Figure 2 is a schematic diagram showing the perception service of the network side device 100 according to an embodiment of the present disclosure. Perception services are generally divided into two categories: scanning detection services and target tracking services, wherein Figure 2 (a) shows an example of scanning detection services, and Figure 2 (b) shows an example of target tracking services. The purpose of scanning and detection services is to detect the presence of targets, such as intrusion detection and traffic flow monitoring. It usually requires a large perception range and a short perception duration. The target is generally not understood before the detection is completed. When the detection is completed, the approximate instantaneous position, speed and other information of the detected target may be obtained based on the perception signal; the purpose of target tracking services is to continuously obtain the position, speed and other information of a specific target over a long period of time, such as dangerous driving warnings. It usually requires a small perception range (no wide-area perception is required, only the perception range needs to cover the target to be tracked) and a long perception duration. Before tracking the target, it is necessary to obtain basic information about the target through scanning and detection and other means. Tracking continues until the target is lost or the service is terminated.

[0057] Target tracking is a typical service requirement of the synaesthesia system. For example, some possible application scenarios of target tracking include:

[0058] (1) When a vehicle on the road is obviously speeding, the movement of the vehicle is likely to cause dangers such as rear-end collision, collision, and crushing. At this time, the network-side device 100 tracks the vehicle, obtains its position, speed and other information in real time, and simultaneously broadcasts an alarm signal to remind nearby networked vehicles and pedestrians to be careful and avoid it. Figure 3 is a schematic diagram showing the target tracking and broadcast warning performed by the network-side device 100 according to an embodiment of the present disclosure. As shown in ① in Figure 3, the network-side device 100 detects a speeding vehicle through scanning (in Figure 3, the vehicle icon marked with v represents the speeding vehicle), and then tracks the speeding vehicle, and as shown in ② in Figure 3, the network-side device 100 broadcasts a warning to the networked vehicles near the speeding vehicle (the vehicles within the ellipse in Figure 3).

[0059] (2) When an intruder appears on the road, such as a tree that suddenly falls on the roadside of an urban road, an aerial photography drone that appears at low altitude on the road, or a cow or sheep that enters the road on a rural road, the network-side device 100 tracks the intruder, obtains its position, speed and other information in real time, and broadcasts a signal to alert nearby vehicles and pedestrians to the intrusion warning;

[0060] (3) When a traffic accident occurs on the road, a hit-and-run situation may sometimes occur. In this case, the network-side device 100 tracks and locates the fleeing vehicle, obtains its driving route, and provides it to the accident handling party for accountability;

[0061] (4) During a police pursuit operation, the suspect often drives away. In this case, the police initiate a target tracking request to the network-side device 100, specifying the suspect's vehicle and requesting the network-side device 100 to track the vehicle in real time. The police can efficiently intercept the suspect's vehicle based on the tracking information.

[0062] In target tracking applications, the target being tracked is typically disconnected, so communication positioning signals such as PRS (Positioning Reference Signal) cannot be used to track the target. Instead, sensing signals must be sent to receive echoes to actively acquire target information. Typically, the network-side device 100 first needs to obtain (for example, through scanning) the approximate range of the target to be tracked, and after initially locking onto the target, it continuously sends sensing signals to the target.

[0063] The target tracking may be initiated by the network side device 100, or a target tracking service request may be initiated by a service initiator having the target tracking service initiation authority.

[0064] The following briefly describes the service request process for a possible target tracking business.

[0065] When target tracking is initiated by the network device 100, the network device 100 can discover the target through periodic detection and actively initiate the target tracking service. For example, the process may include the following steps S1-S3: S1, the network device 100 periodically scans for targets within the detection range; S2, the network device 100 discovers the target to be tracked (for example, a speeding vehicle or a vehicle traveling against the traffic); S3, the network device 100 begins tracking the target.

[0066] Figure 4 shows an example of a flow chart of a service initiator requesting a target tracking service. For example, the flow may include the following steps S1-S11.

[0067] In S1, a service initiator (also referred to as a third party) initiates a target tracking service request (also referred to as a service request or tracking request) to a local base station.

[0068] In S2, the local base station sends an authorization request to the service initiator to confirm that it has the authority to initiate the service. Situations where authorization to initiate a service may include police requests to track a suspect's vehicle, fleet management vehicles requesting to track fleet vehicles, road test units requesting to track vehicles on the road, and other reasonable target tracking needs.

[0069] In S3, the service initiator sends an authorization authentication response to the local base station.

[0070] If the target is not within the coverage of the local base station, the process proceeds to S4, where the local base station reports the service request to the core network (eg, user plane unit UPF).

[0071] In S5, the core network sends a target tracking service request to a base station in the target area (shown as a target tracking base station in FIG4 ).

[0072] In S6, the target tracking base station sends a service request confirmation to the core network.

[0073] In S7, the core network sends a service request confirmation to the local base station.

[0074] At S8, the local base station sends a service request confirmation to the service initiator, initiating the target tracking service. If the target is within the coverage area of ​​the local base station, the process skips S4 to S7 and proceeds directly to S8, where the local base station initiates the target tracking service. This process uses the example of a target not within the coverage area of ​​the local base station as an example.

[0075] In S9, the service initiator provides the target tracking base station with initial target information to assist in target lock. This initial information may include the target vehicle model, approximate target range, target movement direction, and approximate target speed. If the target tracking base station can dispatch multimodal information, this initial information may also include vehicle color and license plate number information. The target tracking base station dispatches multimodal sensors such as cameras and infrared measurement equipment to assist in locking the target. Possible initial auxiliary information is summarized in Table 1.

[0076] Table 1

[0077] S10: The target tracking base station locks the target to be tracked according to the initial information.

[0078] S11, the target tracking base station performs target tracking and sends the tracking result to the service initiator.

[0079] The network-side device 100 according to an embodiment of the present disclosure may be the target tracking base station described above.

[0080] When multiple base stations are capable of tracking a target, the core network can prioritize a base station based on location. For example, the core network prioritizes a higher-positioned base station, which typically has line-of-sight with the target and offers better tracking performance. When multiple target tracking tasks are required, the core network can prioritize a base station for service load balancing. During target tracking, the roadside base station adjusts its beam direction based on the target's motion to ensure the target remains within the sensing beam's coverage area. It continuously acquires information about the target's location and speed based on the echo signal until the target is lost or removed, at which point tracking ceases.

[0081] The following describes the modeling of the sensing channel in this application. Considering that the base station (network side device 100) is usually deployed at a higher place beside the road, the site selection will ensure that there are few obstructions between the base station and the service section. Therefore, it can be assumed that the channel between the base station and the road section target is a line-of-sight dominated (LoSDominated) channel. Assuming that the number of transmitter antennas is N T , the sending steering vector used is f (f is an N T ×1 vector), the number of receiver antennas is N R The receiving steering vector used is w (w is an N R ×1 vector), then for the point reflection model, the equivalent channel can be expressed as:

[0082] h(t)=A exp(j2πf D t)w H b(θ r )a H (θ t )fδ(t-τ)

[0083] Where t is time, A (A is a complex number) is the attenuation and reflection coefficient, is the Doppler shift, v r is the radial relative moving speed between the radar and the target, f c is the carrier frequency, c0 is the speed of light, is the path delay, R is the distance between the base station and the target, a(θ t ) indicates that the departure angle is θ t The sending steering vector, b(θ t ) indicates that the angle of arrival is θ r The receiving steering vector can be expressed as:

[0084] Where λ is the signal wavelength, is the position offset of the transmitting antenna array relative to the zero-phase reference point, is the position offset of the receiving antenna array with respect to the zero-phase reference point.

[0085] Considering that the tracking target of the base station is usually a road vehicle, and the road vehicle is usually modeled as a rectangular parallelepiped with a width of 1m, a height of 1m, and a length of 3-5m, for a base station equipped with a large-scale antenna array, the size of the vehicle is usually comparable to the beam width, and even several beams are required for complete coverage, so the target is not suitable for modeling as a point reflector. Figure 5 is a schematic diagram showing a target tracking channel model. For illustration and not limitation, in Figure 5, the target is assumed to be a vehicle, the specific d=40m between the target and the antenna array (assuming it includes 64 antennas), and the vehicle length l is 4m. As shown in Figure 5 (a), for example, 3 beams are required to fully cover the vehicle. The two curves in Figure 5 (b) respectively show the relative beamforming gain (i.e., beam pattern) when the beam is aimed at the two ends (head and tail) of the target. Considering a simplified two-dimensional model (i.e., not considering the pitch angle), this application models the target as a line reflector, and the signal received by the receiver is the superimposed signal obtained by line reflection. Ignoring the delay Doppler difference caused by the target size, the equivalent channel can be simplified as:

[0086] where X target is the target range, θ r ,θ t They all depend on the infinitesimal element dx, and A(x) is the infinitesimal element reflection and attenuation coefficient.

[0087] Taking the cross-cell tracking service in the target tracking service as an example, since the target tracking service usually lasts for a long time and the target moves over a large range, the cross-cell tracking service is an unavoidable problem. In order to ensure the continuity of the tracking service, it is hoped that when the tracked target moves beyond the cell range, the tracking of the target can still be maintained without the target being lost. In order to complete the cross-cell tracking service, the tracking service must be handed over. Figure 6 is a diagram showing an example of target tracking handover according to an embodiment of the present disclosure. As shown in Figure 6, when the target moves from cell 1 to cell 2 (cell 1 and cell 2 are not shown in Figure 6), the base station performing target tracking switches from the network side device 100 (source base station) to the network side device to be handed over (target base station), and the network side device to be handed over continues to complete the target tracking. In the case of handing over the target tracking task, the network side device to be handed over needs to perform target re-identification (Target ReID).

[0088] Figure 7 is an example schematic diagram showing the target tracking service flow according to an embodiment of the present disclosure. The service initiator (service initiator) sends a target tracking service request to the access base station to which it has access. The access base station reports the service request to the user plane unit UPF. According to the cell where the target is located, the UPF sends the service service demand to the base station (network side device 100) within its perceived coverage range. The base station (network side device 100) that provides the target tracking service may be different from the base station in the cell where the service initiator is located, that is, the service initiation and service provision are separated, and the data is forwarded through the UPF. When the cross-base station service is transferred, the transfer process is transparent to the service initiator and does not require the participation of the service initiator. The network side device 100 and the network side device to be transferred can forward data through a direct connection interface or forward data from the mobile access management unit (Access and Mobility Management Function, AMF). The network side device to be transferred must re-identify the tracking target to ensure the continuity of the target tracking service. The SMF in Figure 7 represents the session management function.

[0089] The existing 5G NR standard already has many procedures for communication service handover, but these are difficult to directly apply to target tracking service handover. The main reason is that in target tracking services, the tracked target is typically non-cooperative with the base station and is typically not connected to the network. Therefore, it is impossible to send signaling between the base station and the target or use identity information such as the network address for target identification. Figure 8 illustrates an example process for communication service handover in the prior art. Figure 8 provides a signaling flow diagram using the existing 5G NR communication service handover process based on the Xn interface as an example. In Figure 8, it is assumed that two base stations (source base station and target base station) in a city are connected to the same mobile access management unit, and an Xn interface exists between the two base stations, supporting direct data forwarding between base stations. The user (UE) moves from the source base station to the target base station. The communication service handover process may include steps S1-S8. In S1, the user access point is the source base station, which performs measurement control. The user can send uplink data to the UPF and receive downlink data through the source base station. In S2, when a user moves toward the target base station, the source base station initiates a communication service handover based on signal measurements between the user and the source base station, making a handover decision. In S3, the source base station initiates a communication service handover request to the target base station. In S4, the source base station receives confirmation of the communication service handover request from the target base station. In S5, the communication service handover is triggered. In S6, the source base station sends user-related status information to the target base station via the Xn interface. In S7, after receiving the user-related status information, the target base station sends a path switch request to the AMF to request a switch in the uplink and downlink paths. In S8, the target base station receives confirmation of the path switch request from the AMF, completing the communication service handover. In the aforementioned communication service handover process, the user is typically connected to the network and has a cooperative relationship with the base station. The target base station verifies the user's identity using information such as the user's network address, user context information, and user access sequence number. However, in target tracking services, the tracked target is typically non-connected and non-cooperative with respect to the base station, making identity identification impossible using the aforementioned solution. Therefore, the existing 5G NR communication service handover process cannot be directly applied to target tracking service handover. That is, unlike the handover of communication services, the handover of target tracking services requires the target base station to successfully identify the target to be tracked before continuing the tracking service. Therefore, the existing 5G NR communication service handover process cannot be directly used for the handover of target tracking services.

[0090] During target tracking service handover in the intersensory system, the tracked target is typically non-networked and non-cooperative with respect to the network device 100. Therefore, the target re-identification process is required on the network device to be handed over. The purpose of target re-identification is to ensure that the network device to be handed over can identify the tracking target to be handed over by the network device 100, ensuring that the tracking target is not incorrectly tracked. In other words, when handing over the target tracking task, the network device to be handed over needs to perform target re-identification.

[0091] In the embodiment of the present disclosure, the network-side device to be handed over identifies the target object to be tracked based on the target-related identification information provided by the network-side device 100, and can continue to track the target.

[0092] As an example, the processing unit 101 can be configured to: after receiving an indication to identify the target object from the network side device to be transferred, stop sending identification information to the network side device to be transferred, verify whether the network side device to be transferred successfully identifies the target object based on the verification information received from the network side device to be transferred for verifying the target object, and stop tracking the target object if it is verified that the network side device to be transferred successfully identifies the target object based on the verification information.

[0093] FIG9 is a flowchart illustrating an example of target re-identification according to an embodiment of the present disclosure.

[0094] In S1 , the network-side device 100 sends a target tracking service transfer request to the network-side device to be transferred.

[0095] In S2 , the network-side device 100 receives a target tracking service transfer request confirmation from the network-side device to be transferred.

[0096] In S3, the network-side device 100 sends identification information for identifying the target object (for example, information such as the approximate location and / or speed of the target) to the network-side device to be transferred;

[0097] In S4, the network side device to be handed over performs target detection based on the obtained information and detects possible tracking targets (i.e., detects candidate targets). If multiple possible tracking targets are detected, the following S5 and S6 are executed. If only one possible tracking target is detected, S7 can be directly executed.

[0098] In S5 , the network-side device to be handed over requests the network-side device 100 for required high-precision information such as high-precision position and / or speed information (ie, makes a high-precision target state information request) to distinguish the target to be tracked.

[0099] In S6 , the network-side device 100 provides the required high-precision information to the network-side device to be handed over, to help the network-side device to be handed over perform target identification.

[0100] In S7, the network-side device to be handed over successfully completes target identification.

[0101] In S8 , after the network-side device to be handed over successfully completes target identification, the network-side device 100 receives a successful identification indication from the network-side device to be handed over.

[0102] In S9, the network side device 100 stops sending target information, and the network side device 100 receives verification information (for example, information such as the location and / or speed of the target) from the forwarding network side device, and the network side device 100 verifies whether the forwarding network side device successfully identifies the target object (that is, the network side device 100 performs target verification).

[0103] In S10 , the network-side device 100 compares the received verification information and confirms that the network-side device to be handed over has successfully locked the target.

[0104] The high-precision information required in the above S5-S6, such as high-precision positioning and speed measurement information, can be obtained using the high-precision target tracking described below (for example, the precise positioning information described in high-precision target tracking). If the network-side device 100 determines in S10 that the identification of the to-be-handed-over network-side device is incorrect, the network-side device 100 sends an instruction to re-execute S5-S10.

[0105] In S11 , the network-side device 100 stops tracking the target, and the network-side device to be handed over starts tracking the target.

[0106] As an example, the processing unit 101 may be configured to transfer the target tracking task based on the Xn interface.

[0107] The Xn interface is a direct connection channel between base stations, which can support direct information transmission between base stations; when there is no Xn interface between two base stations (for example, the two base stations are across provinces), information forwarding can be carried out using the N2 interface between the base station and the AMF.

[0108] As an example, the processing unit 101 can be configured to, through the Xn interface: send a request for handover of the target tracking task to the network side device to be handed over, and receive confirmation of the request from the network side device to be handed over, send identification information to the network side device to be handed over, and receive verification information for verifying the target object from the network side device to be handed over.

[0109] Since the target to be tracked is not connected to the network side device 100, and the service initiation is separated from the service execution, the service transfer process does not require the participation of the target object. Compared with the communication service transfer process of 5G NR, the information forwarding of the target object (for example, serial number status forwarding (SN Status Transfer)) is modified to target re-identification. After the target re-identification is completed, the network side device to be transferred sends (receives) uplink (downlink) data to the UPF.

[0110] FIG10 is a flowchart illustrating an example of target tracking task transfer based on an Xn interface according to an embodiment of the present disclosure.

[0111] In S1 , the network-side device 100 performs measurement control.

[0112] In S2 , the network-side device 100 makes a decision to transfer the target tracking task.

[0113] In S3 , the network-side device 100 sends a target tracking task transfer request to the network-side device to be transferred.

[0114] In S4 , the network-side device 100 receives confirmation of the target tracking task transfer request from the network-side device to be transferred.

[0115] In S5 , the network-side device 100 triggers the target tracking task transfer.

[0116] In S6 , the network side device 100 sends identification information (eg, the approximate position and / or speed of the target) for identifying the target object to the network side device to be handed over via the Xn interface, ie, sends the target state.

[0117] In S7, the network side device to be handed over performs target detection based on the obtained information and detects possible tracking targets (i.e., detects candidate targets). If multiple possible tracking targets are detected, the following S8 and S9 are executed. If only one possible tracking target is detected, S10 can be directly executed.

[0118] In S8 , the network-side device to be handed over requests the network-side device 100 for required high-precision information such as high-precision position and / or speed information (ie, makes a high-precision target state information request) to distinguish the target to be tracked.

[0119] In S9 , the network-side device 100 provides the required high-precision information to the network-side device to be handed over, to help the network-side device to be handed over perform target identification.

[0120] In S10, the network-side device to be handed over successfully completes target identification.

[0121] In S11 , after the network-side device to be handed over successfully completes target identification, the network-side device 100 receives a successful identification indication from the network-side device to be handed over.

[0122] In S12 , the network-side device to be handed over sends verification information (eg, target state information of the target object) for verifying the target object to the network-side device 100 to request verification.

[0123] In S13 , the network-side device 100 completes the verification, confirms that the network-side device to be transferred correctly identifies the tracking target, and sends a confirmation of transfer of the target tracking task to the network-side device to be transferred.

[0124] In S14, the network side device to be handed over sends a path switching request to the AMF to request switching of the uplink and downlink paths of the target tracking.

[0125] In S15, the network side device to be handed over receives confirmation of the path switching request from the AMF, thereby completing the modification and connection of the uplink and downlink paths of the target tracking.

[0126] As an example, the processing unit 101 may be configured to transfer the target tracking task based on the N2 interface.

[0127] As an example, the processing unit 101 can be configured to: send a request for handover of the target tracking task to the network side device to be handed over through the AMF, and receive confirmation of the request from the network side device to be handed over through the AMF, send identification information to the network side device to be handed over through the user plane unit UPF, and receive verification information for verifying the target object from the network side device to be handed over through the UPF.

[0128] FIG11 is a flowchart illustrating an example of target tracking task transfer based on the N2 interface according to an embodiment of the present disclosure.

[0129] In S1 , the network-side device 100 performs measurement control.

[0130] In S2 , the network-side device 100 makes a decision to transfer the target tracking task.

[0131] In S3, the network-side device 100 sends a target tracking task transfer request to the AMF.

[0132] At S4, AMF sends a path establishment request to UPF.

[0133] At S5, the AMF receives confirmation of the path establishment request from the UPF.

[0134] In S6, the AMF sends a target tracking task transfer request to the network-side device to be transferred.

[0135] In S7, the AMF receives confirmation of the target tracking task transfer request from the network side device to be transferred.

[0136] In S8, the network-side device 100 receives confirmation of the target tracking task transfer request from the AMF.

[0137] In S9 , the network-side device 100 triggers the target tracking task transfer.

[0138] In S10 , the network-side device 100 sends identification information for identifying the target object (eg, information such as the approximate position and / or speed of the target) to the UPF, that is, sends the target state.

[0139] In S11, the network side device to be handed over performs target detection based on the obtained information and detects possible tracking targets (i.e., detects candidate targets). If multiple possible tracking targets are detected, the following S12 and S13 are executed. If only one possible tracking target is detected, S14 can be directly executed.

[0140] In S12, the network side device to be handed over requests the required high-precision information such as high-precision position and / or speed information from the network side device 100 via the UPF (ie, makes a high-precision target state information request) to distinguish the target to be tracked.

[0141] In S13 , the network-side device 100 provides the required high-precision information to the network-side device to be handed over via the UPF, to help the network-side device to be handed over perform target identification.

[0142] In S14, the network-side device to be handed over successfully completes target identification.

[0143] In S15, after the network-side device to be handed over successfully completes target identification, the network-side device 100 receives a successful identification indication from the network-side device to be handed over via the AMF.

[0144] In S16 , the network-side device to be handed over sends verification information (eg, target state information of the target object) for verifying the target object to the network-side device 100 via the UPF to request verification.

[0145] In S17, the network-side device 100 completes the verification, confirming that the network-side device to be handed over correctly identifies the tracking target, and sends a confirmation of the transfer of the target tracking task to the network-side device to be handed over via the AMF.

[0146] Finally, the network side device to be handed over completes the modification and connection of the uplink and downlink paths related to target tracking.

[0147] As can be seen from the process shown in Figure 11, since there is no Xn interface between the network-side device 100 and the network-side device to be transferred, the request-type data is usually forwarded through the AMF, and the AMF acts as an intermediate node to complete the uplink and downlink path changes related to target tracking. The data required in S10-S17 of target re-identification can be forwarded through the UPF to complete the target re-identification.

[0148] As an example, the processing unit 101 may be configured to trigger the handover of the target tracking task based on an event reflecting that the target object is about to enter the perception coverage range of the to-be-handed network-side device from the perception coverage range of the network-side device 100. As an example, the handover of the target tracking task is triggered by measurement by the network-side device 100, and the triggering event may reflect that the target object is moving from the perception coverage range of the network-side device 100 to the perception coverage range of the to-be-handed network-side device.

[0149] As an example, the above event includes that the network-side device 100 detects, based on the positioning information of the target object, that the target object is about to move out of the sensing coverage range of the network-side device 100 .

[0150] For example, based on a pre-defined sensing coverage range (tracking range), triggered by target cross-region movement. For example, the network-side device 100 pre-defines a hexagonal cellular cell as its tracking range. When it is detected based on the positioning information of the target object that the target object is about to move out of the tracking range of the network-side device 100, the target tracking task is handed over. The network-side device 100 hands over the target tracking task to the pending network-side device whose target is about to enter its sensing coverage range to continue tracking.

[0151] As an example, the above event includes that the amplitude of the echo received by the network-side device 100 from the target object is lower than a predetermined threshold value during a predetermined duration and continues to decrease.

[0152] For example, the target tracking task may be triggered based on changes in the measured echo intensity. For example, the network-side device 100 continuously receives the target echo for target tracking. When the echo intensity continuously falls below a predetermined threshold and continues to decrease, it is considered that the target should be handed over to the pending network-side device whose tracking is about to enter its sensing coverage range. This triggers the target tracking task handover, and the network-side device 100 hands over the target tracking task to the pending network-side device to continue tracking.

[0153] In order to obtain high-precision position and / or velocity information of the target object, the present disclosure also provides a high-precision target tracking method. This high-precision target tracking method can be used alone or in combination with the above-mentioned target tracking task. The basic idea of ​​this high-precision target tracking method is to adjust the angles and / or the directions of the central axes of multiple beams so that each beam points to the edge of the target object. In the process of capturing the tracked target, the network side device 100 obtains the approximate position information of the target to be tracked through scanning detection or advance notification from the service initiator, and the network side device 100 shoots a beam at the target to lock the target.

[0154] Figure 12 is an example flow chart showing target tracking according to an embodiment of the present disclosure. In S1, upon receiving a target tracking service request, the network side device 100 performs beam scanning to detect the sensing range (sensing domain) to detect the target to be tracked. In S2, after successfully detecting the target, the network side device 100 can, for example, evaluate whether it is necessary to enable high-precision target tracking based on information such as the size of the target and the accuracy of the tracking requirements. If high-precision target tracking is enabled, the network side device 100 can execute S3 and / or S4 to adjust the angles and / or directions of the central axes of the multiple beams (for example, in the case of alternating execution of S3 and S4, the order of S3 and S4 can be swapped, and S3 and S4 can be repeatedly executed alternately to ensure high-precision tracking of the target), ensuring that the multiple beams are aligned with the edge of the target, thereby obtaining high-precision positioning information of the target, wherein, in S3, the angles of the multiple beams are adjusted, and in S4, the directions of the central axes of the multiple beams are adjusted. In addition, through the high-precision positioning information, the network side device 100 can estimate the high-precision velocity information of the target. If high-precision target tracking does not need to be enabled, the process proceeds to S5 to track the target object using an existing target tracking method.

[0155] As an example, the processing unit 101 can be configured to, when tracking a target object, send sensing signals to the target object using multiple beams, receive echo signals corresponding to the sensing signals from the target object using the multiple beams, and adaptively adjust the angles between the multiple beams and / or the central axes of the multiple beams based on a comparison of the amplitudes of the echo signals corresponding to the multiple beams to obtain precise positioning information of the target object. The processing unit 101 can be configured to obtain continuous precise positioning information (high-precision position information) of the target object and then calculate the speed of the target object based on the displacement information of the target object within a time interval, thereby obtaining high-precision positioning and speed measurement information.

[0156] In roadside base station telepathy applications, target tracking of vehicles and pedestrians is a common service. This service typically requires continuous acquisition of information such as the location and velocity of a specific target through sensing signals. In existing technologies, Doppler velocity measurement only measures the radial velocity of the target relative to the signal source and cannot obtain tangential velocity information. In roadside base station applications, the target's along-road velocity (the main component of which is primarily tangential velocity) is more important information. Therefore, traditional Doppler velocity measurement cannot provide high-precision velocity results and is also difficult to re-identify during cross-base station service handover, making it unsuitable as a speed measurement solution for roadside base stations. In existing technologies, the first method uses single-beam angle information combined with ranging information for positioning, and then measures the target's movement distance during positioning intervals to measure velocity. However, this method of positioning and measuring velocity using single-beam angle information combined with ranging information has low positioning accuracy, resulting in low velocity measurement accuracy, and the accuracy is significantly affected by beam width. The second method uses the angle formed by the target and the base station to determine the geometric relationship, and then derives the along-road velocity from the radial velocity based on this geometric relationship. However, estimating the target's speed along the road from the radial velocity based on geometric relationships is significantly affected by angle estimation errors, and the estimated value will have large errors when the target's speed is not strictly along the road. In addition, angle measurement errors can lead to large speed estimation errors, and a strong assumption is required that the target's speed is strictly along the road.

[0157] Figure 13 is a schematic diagram showing a geometric correction speed measurement scheme in the prior art. As shown in Figure 13, assuming that the vehicle speed is strictly along the road direction, the vehicle's true speed is v, and the radial speed measured by the base station through Doppler is v r , the tangential velocity is v t , and the base station estimates the angle between the vehicle and the base station axis through the beam, which is θ. Then the real speed of the vehicle can be obtained as In Figure 13, the v and v with superscripts (1) and (2) are used. r 、v t , and θ represent the relevant parameters of the vehicle at two different positions respectively.

[0158] Geometric speed correction can deduce the vehicle's speed along the road from the radial speed, but this method also leads to serious error problems. First, this solution assumes that the vehicle moves strictly along the road. In reality, due to the vehicle's lane change and other behaviors, the speed measurement results given by this solution will have large errors when the vehicle changes lanes or turns around, which may cause the base station to misjudge the emergency situation. Second, this solution is highly dependent on the accuracy of the angle estimation. If the angle estimation value is The estimated error is Then the speed estimation error is: When the angle θ is small, the error will be significantly larger.

[0159] Compared to Method 1 of the prior art, the high-precision target tracking method according to the embodiment of the present disclosure can achieve high-precision positioning, and its accuracy is less affected by beam width. Compared to Method 2 of the prior art, it does not require a strong assumption about the target velocity, and the propagation of angle measurement errors does not lead to large velocity estimation errors. In other words, the high-precision target tracking method according to the embodiment of the present disclosure can achieve high-precision positioning and velocity measurement, has low requirements for beam angle measurement accuracy, and can adaptively adjust the tracking beam to track the target.

[0160] As an example, the processing unit 101 may be configured to send precise positioning information as identification information to the network-side device to be handed over. Alternatively, upon receiving a request from the network-side device to be handed over for precise information for identifying a target object, the processing unit 101 may be configured to send precise positioning information as precise information to the network-side device to be handed over. For example, the precise positioning information is information about the target object obtained by adaptively adjusting the angles between the multiple beams and / or the central axes of the multiple beams as described above. The precise positioning information helps the network-side device to be handed over more accurately identify the target object.

[0161] As an example, the number of the multiple beams may be determined based on the size of the target object and / or the accuracy requirement of the target tracking task.

[0162] As an example, the processing unit 101 may be configured to obtain the size of the target object to initialize the angles between the multiple beams.

[0163] As an example, the processing unit 101 can be configured to: select the central axes of multiple beams to align with the center of the target object, construct a graphic surrounding the target object with the central axis as the center, and perform three-dimensional beam forming to form multiple beams pointing to the perimeter of the graphic respectively. For example, in the method of high-precision target tracking according to an embodiment of the present disclosure, it is assumed that the transmitter uses a planar antenna array to perform three-dimensional beam forming and uses multiple beams to track the target (multi-beam target tracking). By way of illustration and not limitation, the above-mentioned graphic can be a circle or an ellipse. Those skilled in the art can think of other forms of graphics, which will not be repeated here. For simplicity, in the following Figures 14 and 15, the graphics are shown to be circular.

[0164] Figure 14 is an example schematic diagram showing multi-beam target tracking according to an embodiment of the present disclosure. As shown in Figure 14, the transmitter first determines a central axis to be roughly aligned with the target, and makes a graphic of an appropriate size with the central axis as the center. The transmitter of the network-side device 100 forms multiple beams, wherein the multiple beams can be generated by the shaping of the antenna array structure (the antenna array structure can be used to shape and transmit simultaneously), can be generated separately using multiple radio frequency links, or can be generated separately. Multiple single beams can be switched at a faster frequency to form an equivalent multi-beam to obtain a multi-beam measurement result. The directions of the multiple beams are all on the perimeter of the graphic, trying to lock the target.

[0165] As an example, the processing unit 101 may be configured to expand the perimeter and direct the multiple beams toward the perimeter, thereby adjusting the angles between the multiple beams, if a predetermined number of beams among the multiple beams meet the following conditions: for each beam among the predetermined number of beams, the amplitude of the echo signal corresponding to the beam is greater than or equal to a predetermined amplitude threshold, and the slope of a curve of the amplitude of the echo signal corresponding to the beam relative to the angle between the beam and the central axis is less than a predetermined slope threshold. For example, if the echo intensity of more than a predetermined number of beams is greater than or equal to a predetermined amplitude threshold, and the slope of a curve of the intensity of the echo signals corresponding to these beams relative to the angle between the beam and the central axis is less than a predetermined slope threshold, it indicates that the multiple beams have hit the middle section of the target, and therefore the perimeter is expanded and the multiple beams are directed toward the perimeter.

[0166] As an example, the processing unit 101 may be configured to reduce the perimeter and direct the multiple beams toward the perimeter, thereby adjusting the angles between the multiple beams, if a predetermined number of beams among the multiple beams meet the following conditions: for each beam among the predetermined number of beams, the amplitude of the echo signal corresponding to the beam is less than a predetermined amplitude threshold, and the slope of a curve of the amplitude of the echo signal corresponding to the beam relative to the angle between the beam and the central axis is less than a predetermined slope threshold. For example, if the echo intensity of more than a predetermined number of beams is less than a predetermined amplitude threshold, and the slope of a curve of the intensity of the echo signals corresponding to these beams relative to the angle between the beam and the central axis is less than a predetermined slope threshold, it indicates that the multiple beams have hit the outside of the target, and therefore the perimeter is reduced and the multiple beams are directed toward the perimeter.

[0167] As an example, the processing unit 101 may be configured to determine that the multiple beams are respectively aligned with the edge of the target object if a predetermined number of beams among the multiple beams meet the following conditions: for each beam among the predetermined number of beams, the amplitude of the echo signal corresponding to the beam is within a predetermined amplitude range, and the slope of a curve of a change in the amplitude of the echo signal corresponding to the beam with respect to the angle between the beam and the central axis is greater than or equal to a predetermined slope threshold. For example, if the echo intensities of more than a predetermined number of beams are within the predetermined amplitude range, and the slopes of the curves of a change in the amplitude of the echo signals corresponding to these beams with respect to the angle between the beam and the central axis are greater than or equal to the predetermined slope threshold, then it indicates that the multiple beams are successfully aligned with the edge of the target object.

[0168] As an example, the processing unit 101 can be configured to adjust the central axis toward the next quadrant or toward the beam corresponding to the maximum echo signal amplitude when the difference between the amplitudes of the echo signals corresponding to the multiple beams exceeds a predetermined amplitude difference threshold, until the difference between the amplitudes of the echo signals corresponding to the multiple beams is less than the predetermined difference threshold, wherein the quadrant includes beams greater than a predetermined number threshold whose corresponding echo signal amplitudes are greater than or equal to a predetermined beam amplitude threshold. After the adjustment, the central axis can be aligned with the center of the target, and combined with the adjustment of the angles between the multiple beams, the multiple beams can be directed to the perimeter of the aforementioned graphic.

[0169] When the central axis is not aligned with the center of the target, only by adjusting the angles between the multiple beams, it will be possible for some beams to hit the middle of the target while other beams have moved out of the outside of the target. Therefore, it is necessary to adjust the direction of the central axis of the multiple beams. When the central axis of the beam is not aligned with the center of the target, different beam echo intensities will appear. The direction of the central axis can be adjusted toward the direction of the beam with stronger echo according to the echo intensity until the echo intensities of each beam are roughly equal. Figure 15 is an example schematic diagram showing the adjustment of the central axis of multiple beams according to an embodiment of the present disclosure. As shown in Figure 15, when the echoes of multiple beams are strong, first obtain the direction of each beam (i.e., the initial vector direction connecting the central axis and the beam), and then connect these vector directions end to end (i.e., the parallelogram rule) to obtain a synthesized vector direction, and adjust the central axis along the synthesized vector direction.

[0170] The following describes how to adjust the angle between the beams and / or the central axis, or dual-beam target tracking, using the example of two beams as the multiple beams. In dual-beam target tracking, two beams are pointed at the head and tail of the target, respectively. By comparing the amplitudes of the echoes returning from the head and tail, the angle and axial direction of the two beams can be adaptively adjusted, achieving high-precision target tracking. The target's velocity is then estimated based on the resulting continuous, high-precision position information.

[0171] In the tracking target capture described above, the network side device 100 needs to determine the target to be tracked by scanning detection or based on the initial information provided by the service initiator. The initial target information can be the approximate position, speed range, relative position, relative distance, relative speed, etc. of the target to be tracked. When determining the target to be tracked, it is necessary to obtain the approximate size of the target to be tracked to initialize the dual-beam angle. After completing the target capture, the network side device 100 sends a dual beam with a certain angle to the target. The dual beams can be formed and sent simultaneously using an array structure, can be generated separately using multiple radio frequency links, or can be switched at a faster frequency to form an equivalent dual beam. The network side device 100 can adjust the dual beam angle by receiving the intensity of the dual beam echo, so that the dual beam opening angle is as equal as possible to the angle of the tracking target to the network side device 100, so that the dual beam can cover the head and tail of the target respectively, so as to reduce the tracking error.

[0172] Figure 16 is a schematic diagram illustrating an example of adaptive dual-beam angle adjustment according to an embodiment of the present disclosure. Figure 16 shows the echo intensity corresponding to one of the dual beams obtained by changing the angle (angle) between the dual beams with the tracking target center direction as the 0° axial direction. The network-side device 100 pre-sets a low threshold γ1 and a high threshold γ2. Based on the relationship between the echo intensity and the high and low thresholds, the echo intensity s can be divided into three intervals (s < γ1, γ1 < s < γ2, s > γ2). Combined with Figure 16, it can be seen that the curve of echo intensity versus angle can be roughly divided into three sections: near 0° (the part marked as "too narrow" in (a) and (b) of Figure 16, that is, s>γ2), the echo intensity is high and the slope is small, indicating that the beam hits the middle section of the target and the beam should be adjusted to the outside of the target; in the part where the angle between the two beams is too large (the part marked as "too wide" in (a) and (b) of Figure 16, that is, s<γ1), the echo intensity is low and the slope of the curve is small, indicating that the beam hits the outside of the target and the beam should be adjusted to the inside of the target; in the middle part (the part marked as "tracking" in (a) and (b) of Figure 16, that is, γ1<s<γ2), the echo intensity is moderate and the slope of the curve is large, indicating that the beam is successfully aligned with the head or tail of the target.

[0173] For example, the network-side device 100 compares the dual-beam echo signal strengths s1 and s2 with pre-set thresholds γ1 and γ2. If both dual-beam echo strengths are greater than or equal to the upper threshold γ2, it indicates that the beams have hit the middle of the target and the dual-beam angle should be increased. If both echo strengths are less than the lower threshold γ1, it indicates that the beams have hit the outside of the target and the dual-beam angle should be decreased. If both echo strengths are greater than or equal to the lower threshold γ1 and less than the upper threshold γ2, it indicates that the beams have successfully aligned with the head / tail of the target, indicating normal tracking. This allows the dual-beam angle to correspond to the target size, allowing the dual beams to align with the head and tail of the target.

[0174] When the central axis of the dual beam is not aligned with the center of the target, only adjusting the dual beam angle will result in one beam hitting the middle of the target while the other beam has moved out of the target. Therefore, it is necessary to adjust the direction of the dual beam central axis.

[0175] For example, if the dual-beam echo signal strengths are in the same range, the angle between the dual beams is adjusted; if the dual-beam echo signal strengths are not in the same range, the dual-beam central axis direction can be switched to execution.

[0176] Figure 17 is an example schematic diagram illustrating adaptive dual-beam central axis direction adjustment according to an embodiment of the present disclosure. The "too late" mark in Figure 17 (a) and (b) indicates that the beam tracks the target too late, resulting in the beam pointing to the left of the target. The "too early" mark in Figure 17 (a) and (b) indicates that the beam tracks the target too early, resulting in the beam pointing to the right of the target. The "tracking" mark in Figure 17 (a) and (b) indicates that the dual beam points to the head and tail of the target. As shown in Figure 17 (b), when the dual beam central axis is not aligned with the target central axis, the echo intensities of the two beams (beam 1 and beam 2) will be different. Within the range marked as "tracking" in Figure 17 (b), the offset (Δx) between the dual beam central axis and the target central axis is roughly linearly related to the difference in the echo intensities of the two beams. Based on the relationship between the offset and the beam intensity difference, the network-side device 100 adjusts the central axis direction of the dual beam toward the beam with the stronger echo until the echo intensities of the two beams are roughly equal.

[0177] For example, the network-side device 100 compares the dual-beam echo signal strength difference s1-s2 with a preset threshold value γ3 (assuming s1 represents the echo strength of beam 1 and s2 represents the echo strength of beam 2). If s1-s2>γ3, it indicates that the echo strength of beam 1 exceeds the echo strength of beam 2 by a significant amount, and the dual-beam center axis should be rotated toward beam 1. Conversely, if s1-s2>γ3, it indicates that the echo strength of beam 2 exceeds the echo strength of beam 1 by a significant amount, and the dual-beam center axis should be rotated toward beam 2 until the echo strengths of the two beams are equal within the error limit. After adjustment, the dual-beam center axis can be aligned with the center of the target. Combined with the dual-beam angle adjustment, the dual beams can be aligned with the head and tail of the target.

[0178] The following is an example of the performance simulation results of dual-beam target tracking according to the embodiment of the present disclosure. T =64, a half-wavelength spacing linear antenna array is used, the signal-to-noise ratio is set to vary from -10dB to 20dB, the target length is set to l=4m, the distance between the network-side device 100 and the target is d=40m, and the sensing period is set to 1s.

[0179] Figure 18 is an example diagram showing the positioning estimation error at different signal-to-noise ratios using dual-beam target tracking according to an embodiment of the present disclosure. As can be seen from Figure 18, when the SNR at the receiver is greater than 0 dB, the positioning estimation error is less than 0.5 m, demonstrating that dual-beam target tracking meets the requirements for high-precision positioning.

[0180] Figure 19 illustrates an example of velocity estimation error at different signal-to-noise ratios using dual-beam target tracking according to an embodiment of the present disclosure. As shown in Figure 19, when the SNR at the receiver is greater than 0 dB, the velocity estimation error is less than 0.6 m / s. This demonstrates that high-precision positioning using dual-beam target tracking can derive high-precision velocity estimates, meeting the requirements for high-precision velocity measurement.

[0181] In order to improve the robustness of target tracking and obtain more accurate target tracking information, the network side device 100 can cooperate with other devices with perception capabilities (also called perception devices or auxiliary perception nodes, such as other networked vehicles or users with perception capabilities) to perform cooperative perception (cooperative measurement) to perform target tracking of the target object.

[0182] As an example, the processing unit 101 may be configured to receive perception information obtained by perceiving a target object from a perception device having a perception function, and perform target tracking on the target object based on the perception information.

[0183] As an example, the processing unit 101 can be configured to send a perception request for perceiving a target object to neighboring devices within a predetermined range of the network side device 100 via broadcasting, and select a perception device based on the orientation of the target object from among the neighboring devices that return confirmation regarding the perception request.

[0184] After acquiring the perception information of the auxiliary perception node, the network-side device 100 can use the information to obtain better perception performance of the target.

[0185] FIG20 is an example flow chart illustrating collaborative awareness according to an embodiment of the present disclosure.

[0186] In S1 , the network-side device 100 performs measurement control.

[0187] In S2, the network device 100 makes a cooperative sensing decision. For example, the network device 100 triggers a cooperative measurement request due to a degradation in the current tracking quality. This triggering event may be, for example, that the tracked target is obscured or predicted to be obscured, or that the current measurement result has excessive uncertainty, resulting in insufficient tracking accuracy.

[0188] In S3, the network-side device 100 broadcasts a cooperation awareness request.

[0189] At S4, the network device 100 receives confirmation of the cooperative sensing request from a neighboring device with sensing capabilities. For example, the network device 100 selects a sensing device from the neighboring devices that have returned confirmations regarding the sensing request based on the location of the target to be sensed. For example, a sensing device near the target is selected.

[0190] In S5, the network-side device 100 schedules the perception device, for example, through RRC, and requires it to assist in perception of the target object.

[0191] In S6, the network-side device 100 obtains the sensing result of the sensing device.

[0192] For the sake of clarity, the above mainly describes target tracking, target tracking task transfer, and cooperative perception using road vehicles as the target object. In fact, target tracking, target tracking task transfer, and cooperative perception can also be used in scenarios such as road pedestrian tracking and sky drone tracking, and are not limited to the tracking target type.

[0193] As an example, the target object is a group of wild animals, and the positioning information of the target object by the network-side device 100 is input into a controller for controlling a camera, so as to control the camera to track and shoot the target object.

[0194] For example, a wildlife population may be a herd of migrating Tibetan antelopes.

[0195] Figure 21 is a schematic diagram illustrating tracking a target object and processing tracking data according to an embodiment of the present disclosure. Figure 21 shows that the target object may be a vehicle or a herd of Tibetan antelopes.

[0196] For example, in 5G remote video inspections, the network-side device 100 can input the tracking and positioning information of the target object into the controller of the camera (or camera module) to control the camera module to track and shoot the positioning area that matches the positioning information (for example, adjusting the camera's shooting angle). That is, the camera module is driven by the positioning information to directionally collect various data such as videos and pictures within the positioning area. Among them, if the camera module is within the communication coverage range of the network-side device 100, the network-side device 100 can communicate directly with the camera module. The camera module can be connected to the network-side device 100 via a wired connection and be set at a location relatively close to the network-side device 100 (for example, placed on a base station tower); the camera module can also be set on a device separate from the network-side device 100, such as a drone or robot, to obtain positioning information from the network-side device 100 via wireless means or the core network or other media, and move to the positioning area / rotate to the positioning direction to capture images of the positioning area.

[0197] The camera module can send image information of the positioning area to terminal applications, such as traffic management systems and intelligent inspection systems. The system can use intelligent technologies and algorithm processing such as image recognition and deep learning to comprehensively judge and derive tracking and inspection results.

[0198] In the above description, for convenience, the network side device 100 is described as a base station. The above description is also applicable to the case where the network side device 100 is a road side unit.

[0199] In the case where the network side device 100 and the network side device to be transferred are both road side units, if the road side unit can directly communicate with other road side units through a certain interface and send and / or receive control signaling, then the interface can replace the Xn interface to perform the target tracking task transfer shown in Figure 10; if data cannot be directly transmitted and controlled between road side units, for the target tracking task transfer shown in Figure 11, the road side unit must be attached to the base station to form a connection of network side device 100-base station to which the network side device 100 is attached-... (direct connection or forwarding through other units such as AMF)...-network side device to be transferred-road side unit to which the network side device to be transferred is attached, and the interface for data transmission and control signaling is provided between base stations.

[0200] If the RSU is capable of transferring and sending information, then operations such as transferring and sending identification information can be performed by the RSU, acting as the network-side device 100. The base station can simply provide the RSU with a data path to the core network. If the RSU has signal processing capabilities, then the tracking task can be performed by the RSU, acting as the network-side device 100.

[0201] The present disclosure further provides an electronic device for wireless communication according to another embodiment. FIG22 shows a functional module block diagram of an electronic device 2200 for wireless communication according to another embodiment of the present disclosure.

[0202] As shown in FIG22 , the electronic device 2200 includes: a perception information acquisition unit 2201, which can be configured to perceive a target object within the perception coverage of a network-side device providing services for the electronic device 2200 but not establishing a communication connection with the network-side device to acquire perception information about the target object; and a communication unit 2203, which can be configured to send the perception information to the network-side device so that the network-side device can track the target object based on the perception information. Furthermore, it should be understood that the various functional units in the electronic device shown in FIG22 are merely logical modules divided according to the specific functions they implement, and are not intended to limit specific implementation methods.

[0203] The perception information acquisition unit 2201 and the communication unit 2203 may be implemented by one or more processing circuits, which may be implemented as a chip, for example.

[0204] The electronic device 2200 can be, for example, arranged on the user equipment side or communicatively connected to the user equipment. Here, it should also be noted that the electronic device 2200 can be implemented at the chip level, or it can also be implemented at the device level. For example, the electronic device 2200 can work as the user equipment itself, and can also include external devices such as memory, transceiver (not shown in the figure), etc. The memory can be used to store programs and related data information that need to be executed by the user equipment to implement various functions. The transceiver may include one or more communication interfaces to support communication with different devices (for example, base stations, other user equipment, etc.), and the implementation form of the transceiver is not specifically limited here.

[0205] The wireless communication system according to the present disclosure may be a 5G NR communication system, a 5G+ communication system, or a 6G communication system. Furthermore, the wireless communication system according to the present disclosure may include a non-terrestrial network. Alternatively, the wireless communication system according to the present disclosure may also include a terrestrial network. Furthermore, those skilled in the art will appreciate that the wireless communication system according to the present disclosure may also be a 4G or 3G communication system.

[0206] As an example, the network side device in the embodiment of the electronic device 2200 may be the network side device 100 mentioned above. As an example, the electronic device 2200 may be the perception device involved in the embodiment of the network side device 100 mentioned above.

[0207] According to the embodiment of the present disclosure, the electronic device 2200 can cooperate with the network side device that provides services for it to perceive, which helps to improve the robustness of target tracking performed by the network side device and obtain more accurate target tracking information.

[0208] As an example, the communication unit 2203 can be configured to: receive a perception request broadcast by the network side device to perceive the target object, and return a confirmation to the network side device in response to the perception request to notify the network side device that the electronic device wants to perceive the target object.

[0209] For an example process of cooperative perception, please refer to the description of Figure 20, which will not be repeated here.

[0210] In the process of describing the network-side device and electronic device for wireless communication in the above embodiments, it is obvious that some processes or methods are also disclosed. Below, an overview of these methods is given without repeating some of the details already discussed above, but it should be noted that although these methods are disclosed in the process of describing the electronic device for wireless communication, these methods do not necessarily adopt the components described or are not necessarily performed by those components. For example, the embodiments of the electronic device for wireless communication can be partially or completely implemented using hardware and / or firmware, while the methods for wireless communication discussed below can be completely implemented by computer-executable programs, although these methods can also adopt the hardware and / or firmware of the electronic device for wireless communication.

[0211] Figure 23 shows a flowchart of a method S2300 for wireless communication performed by a network-side device according to an embodiment of the present disclosure. Method S2300 begins at step S2302. In step S2304, for a target object that is within the perception coverage of the network-side device but has not established a communication connection with the network-side device, the target tracking task for the target object is transferred to the to-be-transferred network-side device whose perception coverage the target object is about to enter, so that the to-be-transferred network-side device can perform target tracking on the target object, wherein the network-side device sends identification information for identifying the target object to the to-be-transferred network-side device, so that the to-be-transferred network-side device can identify the target object based on the identification information. Method S2300 ends at step S2306.

[0212] This method can be executed, for example, by the network-side device 100 described above. For specific details, please refer to the above description of the relevant processing of the network-side device 100, which will not be repeated here.

[0213] Figure 24 shows a flowchart of a method S2400 for wireless communication performed by an electronic device according to another embodiment of the present disclosure. Method S2400 begins at step S2402. In step S2404, for a target object within the sensing coverage of a network device providing services to the electronic device but not yet in communication with the network device, the target object is sensed to obtain sensing information about the target object. In step S2406, the sensing information is sent to the network device so that the network device can track the target object based on the sensing information. Method S2400 ends at step S2408.

[0214] The method may be executed, for example, by the electronic device 2200 described above. For specific details, please refer to the description of the related processing of the electronic device 2200, which will not be repeated here.

[0215] The technology of the present disclosure can be applied to various products.

[0216] The network side device 100 can be set on the base station side or connected to the base station. The base station can be implemented as any type of evolved Node B (eNB) or gNB (5G base station). eNB includes, for example, macro eNB and small eNB. Small eNB can be an eNB that covers a cell smaller than a macro cell, such as a pico eNB, micro eNB, and home (femto) eNB. Similar situations can also be applied to gNB. Alternatively, the base station can be implemented as any other type of base station, such as a NodeB and a base transceiver station (BTS). The base station may include: a main body (also called a base station device) configured to control wireless communications; and one or more remote radio heads (RRHs) arranged at a different place from the main body. In addition, various types of electronic devices can work as a base station by temporarily or semi-permanently performing base station functions.

[0217] The electronic device 2200 can be implemented as various user devices. The user device can be implemented as a mobile terminal (such as a smartphone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle-type mobile router, and a digital camera) or an in-vehicle terminal (such as a car navigation device). The user device can also be implemented as a terminal that performs machine-to-machine (M2M) communication (also known as a machine type communication (MTC) terminal). In addition, the user device can be a wireless communication module (such as an integrated circuit module including a single chip) installed on each of the above terminals.

[0218] [Application examples for base stations]

[0219] (First application example)

[0220] FIG25 is a block diagram illustrating a first example of a schematic configuration of an eNB or gNB to which the techniques of this disclosure can be applied. Note that the following description uses an eNB as an example, but is equally applicable to a gNB. An eNB 800 includes one or more antennas 810 and a base station device 820. The base station device 820 and each antenna 810 can be connected to each other via an RF cable.

[0221] Each of the antennas 810 includes a single or multiple antenna elements (such as multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used for base station device 820 to transmit and receive wireless signals. As shown in FIG25 , eNB 800 may include multiple antennas 810. For example, multiple antennas 810 may be compatible with multiple frequency bands used by eNB 800. Although FIG25 shows an example in which eNB 800 includes multiple antennas 810, eNB 800 may also include a single antenna 810.

[0222] The base station device 820 includes a controller 821 , a memory 822 , a network interface 823 , and a wireless communication interface 825 .

[0223] The controller 821 may be, for example, a CPU or a DSP, and operates various higher-layer functions of the base station device 820. For example, the controller 821 generates data packets based on the data in the signal processed by the wireless communication interface 825 and transmits the generated packets via the network interface 823. The controller 821 may bundle data from multiple baseband processors to generate bundled packets and transmit the generated bundled packets. The controller 821 may have logic functions for performing the following controls: such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control may be performed in conjunction with a nearby eNB or core network node. The memory 822 includes RAM and ROM and stores programs executed by the controller 821 and various types of control data (such as terminal lists, transmission power data, and scheduling data).

[0224] The network interface 823 is a communication interface for connecting the base station device 820 to the core network 824. The controller 821 can communicate with the core network node or another eNB via the network interface 823. In this case, the eNB 800 and the core network node or other eNBs can be connected to each other through a logical interface (such as an S1 interface and an X2 interface). The network interface 823 can also be a wired communication interface or a wireless communication interface for a wireless backhaul line. If the network interface 823 is a wireless communication interface, the network interface 823 can use a higher frequency band for wireless communication than the frequency band used by the wireless communication interface 825.

[0225] The wireless communication interface 825 supports any cellular communication scheme, such as Long Term Evolution (LTE) and LTE-Advanced, and provides wireless connectivity to terminals located in the cell of the eNB 800 via the antenna 810. The wireless communication interface 825 may typically include, for example, a baseband (BB) processor 826 and RF circuitry 827. The BB processor 826 can perform various signal processing functions, such as encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for layers such as Layer 1, Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP). In place of the controller 821, the BB processor 826 may have some or all of the aforementioned logical functions. The BB processor 826 may be a memory that stores communication control programs, or a module including a processor configured to execute programs and associated circuitry. Program updates can modify the functionality of the BB processor 826. This module may be a card or blade inserted into a slot in the base station device 820. Alternatively, the module may be a chip mounted on the card or blade. Meanwhile, the RF circuit 827 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via the antenna 810 .

[0226] As shown in FIG25 , the wireless communication interface 825 may include multiple BB processors 826. For example, multiple BB processors 826 may be compatible with multiple frequency bands used by the eNB 800. As shown in FIG25 , the wireless communication interface 825 may include multiple RF circuits 827. For example, multiple RF circuits 827 may be compatible with multiple antenna elements. Although FIG25 illustrates an example in which the wireless communication interface 825 includes multiple BB processors 826 and multiple RF circuits 827, the wireless communication interface 825 may also include a single BB processor 826 or a single RF circuit 827.

[0227] In the eNB 800 shown in FIG25 , when the network-side device 100 is implemented as a base station, its transceiver may be implemented by the wireless communication interface 825. At least a portion of the functionality may also be implemented by the controller 821. For example, the controller 821 may ensure target tracking service continuity by executing the functions of the units in the network-side device 100.

[0228] [Application examples on user devices]

[0229] (First application example)

[0230] 26 is a block diagram showing an example of a schematic configuration of a smartphone 900 to which the technology of the present disclosure can be applied. The smartphone 900 includes a processor 901, a memory 902, a storage device 903, an external connection interface 904, a camera 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, one or more antenna switches 915, one or more antennas 916, a bus 917, a battery 918, and an auxiliary controller 919.

[0231] The processor 901 may be, for example, a CPU or a system on a chip (SoC), and controls the functions of the application layer and other layers of the smartphone 900. The memory 902 includes RAM and ROM, and stores data and programs executed by the processor 901. The storage device 903 may include storage media such as semiconductor memories and hard disks. The external connection interface 904 is an interface for connecting external devices (such as memory cards and universal serial bus (USB) devices) to the smartphone 900.

[0232] The camera 906 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS) and generates a captured image. The sensor 907 may include a group of sensors such as a measurement sensor, a gyroscope sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 908 converts the sound input to the smartphone 900 into an audio signal. The input device 909 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 910, and receives an operation or information input from the user. The display device 910 includes a screen such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display and displays an output image of the smartphone 900. The speaker 911 converts the audio signal output from the smartphone 900 into sound.

[0233] The wireless communication interface 912 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communications. The wireless communication interface 912 may typically include, for example, a BB processor 913 and an RF circuit 914. The BB processor 913 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and may also perform various types of signal processing for wireless communications. Meanwhile, the RF circuit 914 may include, for example, mixers, filters, and amplifiers, and transmit and receive wireless signals via an antenna 916. Note that while the figure shows a scenario where one RF link is connected to one antenna, this is merely illustrative, and also encompasses scenarios where one RF link is connected to multiple antennas via multiple phase shifters. The wireless communication interface 912 may be a chip module on which the BB processor 913 and the RF circuit 914 are integrated. As shown in FIG26 , the wireless communication interface 912 may include multiple BB processors 913 and multiple RF circuits 914. While FIG26 illustrates an example in which the wireless communication interface 912 includes multiple BB processors 913 and multiple RF circuits 914, the wireless communication interface 912 may also include a single BB processor 913 or a single RF circuit 914.

[0234] In addition, in addition to the cellular communication scheme, the wireless communication interface 912 can support other types of wireless communication schemes, such as a short-range wireless communication scheme, a near-field communication scheme, and a wireless local area network (LAN) scheme. In this case, the wireless communication interface 912 may include a BB processor 913 and an RF circuit 914 for each wireless communication scheme.

[0235] Each of the antenna switches 915 switches a connection destination of the antenna 916 between a plurality of circuits (eg, circuits for different wireless communication schemes) included in the wireless communication interface 912 .

[0236] Each of the antennas 916 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals via the wireless communication interface 912. As shown in FIG26, the smartphone 900 may include multiple antennas 916. Although FIG26 shows an example in which the smartphone 900 includes multiple antennas 916, the smartphone 900 may also include a single antenna 916.

[0237] In addition, the smartphone 900 may include an antenna 916 for each wireless communication scheme. In this case, the antenna switch 915 may be omitted from the configuration of the smartphone 900.

[0238] The bus 917 connects the processor 901, the memory 902, the storage device 903, the external connection interface 904, the camera 906, the sensor 907, the microphone 908, the input device 909, the display device 910, the speaker 911, the wireless communication interface 912, and the auxiliary controller 919. The battery 918 supplies power to the various blocks of the smartphone 900 shown in FIG. 26 via feeders, which are partially shown as dashed lines in the figure. The auxiliary controller 919 operates the minimum necessary functions of the smartphone 900, for example, in sleep mode.

[0239] In the smartphone 900 shown in FIG26 , when the electronic device 2200 is implemented as a smartphone on the user device side, for example, the transceiver of the electronic device 2200 may be implemented by the wireless communication interface 912. At least a portion of the functions may also be implemented by the processor 901 or the auxiliary controller 919. For example, the processor 901 or the auxiliary controller 919 may cooperate with the network-side device that provides services for the electronic device 2200 by executing the functions of the units in the electronic device 2200 described above.

[0240] (Second application example)

[0241] 27 is a block diagram showing an example of a schematic configuration of a car navigation device 920 to which the technology of the present disclosure can be applied. The car navigation device 920 includes a processor 921, a memory 922, a global positioning system (GPS) module 924, a sensor 925, a data interface 926, a content player 927, a storage medium interface 928, an input device 929, a display device 930, a speaker 931, a wireless communication interface 933, one or more antenna switches 936, one or more antennas 937, and a battery 938.

[0242] The processor 921 may be, for example, a CPU or an SoC, and controls a navigation function and other functions of the car navigation apparatus 920. The memory 922 includes a RAM and a ROM, and stores data and programs executed by the processor 921.

[0243] The GPS module 924 measures the position (such as latitude, longitude, and altitude) of the car navigation device 920 using GPS signals received from GPS satellites. The sensor 925 may include a group of sensors such as a gyroscope sensor, a geomagnetic sensor, and an air pressure sensor. The data interface 926 is connected to, for example, the in-vehicle network 941 via an unillustrated terminal and acquires data generated by the vehicle (such as vehicle speed data).

[0244] The content player 927 reproduces content stored in a storage medium (such as a CD or DVD) inserted into the storage medium interface 928. The input device 929 includes, for example, a touch sensor, button, or switch configured to detect a touch on the screen of the display device 930, and receives an operation or information input from the user. The display device 930 includes a screen such as an LCD or OLED display and displays an image of a navigation function or reproduced content. The speaker 931 outputs the sound of the navigation function or the reproduced content.

[0245] The wireless communication interface 933 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 933 may generally include, for example, a BB processor 934 and an RF circuit 935. The BB processor 934 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 935 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via an antenna 937. The wireless communication interface 933 may also be a chip module on which the BB processor 934 and the RF circuit 935 are integrated. As shown in Figure 27, the wireless communication interface 933 may include multiple BB processors 934 and multiple RF circuits 935. Although Figure 27 shows an example in which the wireless communication interface 933 includes multiple BB processors 934 and multiple RF circuits 935, the wireless communication interface 933 may also include a single BB processor 934 or a single RF circuit 935.

[0246] In addition, in addition to the cellular communication scheme, the wireless communication interface 933 can support other types of wireless communication schemes, such as a short-range wireless communication scheme, a near field communication scheme, and a wireless LAN scheme. In this case, for each wireless communication scheme, the wireless communication interface 933 can include a BB processor 934 and an RF circuit 935.

[0247] Each of the antenna switches 936 switches a connection destination of the antenna 937 between a plurality of circuits included in the wireless communication interface 933 , such as circuits for different wireless communication schemes.

[0248] Each of the antennas 937 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals via the wireless communication interface 933. As shown in FIG27, the car navigation device 920 may include multiple antennas 937. Although FIG27 shows an example in which the car navigation device 920 includes multiple antennas 937, the car navigation device 920 may also include a single antenna 937.

[0249] Furthermore, the car navigation device 920 may include an antenna 937 for each wireless communication scheme. In this case, the antenna switch 936 may be omitted from the configuration of the car navigation device 920.

[0250] The battery 938 supplies power to the respective blocks of the car navigation apparatus 920 shown in Fig. 27 via a feeder line, which is partially shown as a dotted line in the figure. The battery 938 accumulates the power supplied from the vehicle.

[0251] In the car navigation device 920 shown in FIG27 , when the electronic device 2200 is implemented as a car navigation device serving as a user device, the transceiver of the electronic device 2200 may be implemented by the wireless communication interface 933. At least a portion of the functions may also be implemented by the processor 921. For example, the processor 921 may cooperate with the network-side device providing services for the electronic device 2200 by executing the functions of the units in the electronic device 2200 described above.

[0252] The technology of the present disclosure can also be implemented as an in-vehicle system (or vehicle) 940 including a car navigation device 920, an in-vehicle network 941, and one or more blocks of a vehicle module 942. The vehicle module 942 generates vehicle data (such as vehicle speed, engine speed, and fault information) and outputs the generated data to the in-vehicle network 941.

[0253] The basic principles of the present invention are described above in conjunction with specific embodiments. However, it should be pointed out that those skilled in the art will understand that all or any steps or components of the methods and devices of the present invention can be implemented in any computing device (including a processor, storage medium, etc.) or a network of computing devices in the form of hardware, firmware, software, or a combination thereof. This can be achieved by those skilled in the art using their basic circuit design knowledge or basic programming skills after reading the description of the present invention.

[0254] Furthermore, the present invention also provides a program product storing machine-readable instruction codes. When the instruction codes are read and executed by a machine, the method according to the embodiment of the present invention can be executed.

[0255] Accordingly, the storage medium for carrying the program product storing the machine-readable instruction code is also included in the disclosure of the present invention. The storage medium includes but is not limited to a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, and the like.

[0256] When the present invention is implemented through software or firmware, the programs constituting the software are installed from a storage medium or a network to a computer with a dedicated hardware structure (such as the general-purpose computer 2800 shown in Figure 28). When various programs are installed on the computer, it can perform various functions, etc.

[0257] 28 , a central processing unit (CPU) 2801 executes various processes according to a program stored in a read-only memory (ROM) 2802 or a program loaded from a storage section 2808 to a random access memory (RAM) 2803. In the RAM 2803, data required when the CPU 2801 executes various processes, etc., is also stored as needed. The CPU 2801, the ROM 2802, and the RAM 2803 are connected to each other via a bus 2804. An input / output interface 2805 is also connected to the bus 2804.

[0258] The following components are connected to the input / output interface 2805: an input section 2806 (including a keyboard, a mouse, etc.), an output section 2807 (including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and speakers, etc.), a storage section 2808 (including a hard disk, etc.), and a communication section 2809 (including a network interface card such as a LAN card, a modem, etc.). The communication section 2809 performs communication processing via a network such as the Internet. A drive 2810 may also be connected to the input / output interface 2805 as needed. A removable medium 2811 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. is installed in the drive 2810 as needed, so that a computer program read therefrom is installed in the storage section 2808 as needed.

[0259] In the case where the above-described series of processing is realized by software, a program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 2811 .

[0260] It should be understood by those skilled in the art that such storage media is not limited to the removable medium 2811 shown in FIG. 28 , which stores the program and is distributed separately from the device to provide the program to the user. Examples of the removable medium 2811 include magnetic disks (including floppy disks (registered trademark)), optical disks (including compact disk read-only memories (CD-ROMs) and digital versatile disks (DVDs)), magneto-optical disks (including minidiscs (MDs) (registered trademark)), and semiconductor memories. Alternatively, the storage medium may be a ROM 2802, a hard disk included in the storage portion 2808, or the like, in which the program is stored and distributed to the user together with the device containing them.

[0261] It should also be noted that in the apparatus, method, and system of the present invention, each component or step can be decomposed and / or recombined. Such decomposition and / or recombination should be considered equivalent solutions of the present invention. Furthermore, the steps of performing the above series of processes can naturally be performed in chronological order according to the order described, but do not necessarily need to be performed in chronological order. Certain steps can be performed in parallel or independently of each other.

[0262] Finally, it should be noted that the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. Furthermore, in the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0263] Although the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, it should be understood that the embodiments described above are merely illustrative of the present invention and are not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations may be made to the embodiments described above without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention is limited solely by the appended claims and their equivalents.

[0264] The present technology can also be implemented as follows.

[0265] Solution 1. A network-side device for wireless communication, comprising:

[0266] The processing circuit is configured to:

[0267] For a target object that is within the sensing coverage of the network side device but has not established a communication connection with the network side device, the target tracking task for the target object is transferred to the network side device to be transferred, whose sensing coverage the target object is about to enter, so that the network side device to be transferred can perform target tracking on the target object.

[0268] The processing circuit is configured to send identification information for identifying the target object to the network side device to be transferred, so that the network side device to be transferred can identify the target object based on the identification information.

[0269] Solution 2. The network-side device according to Solution 1, wherein the processing circuit is configured to:

[0270] After receiving an instruction to identify the target object from the network side device to be transferred, stop sending the identification information to the network side device to be transferred,

[0271] Verifying whether the network side device to be transferred successfully identifies the target object based on the verification information received from the network side device to be transferred for verifying the target object, and

[0272] When it is verified based on the verification information that the network-side device to be transferred successfully identifies the target object, target tracking of the target object is stopped.

[0273] Solution 3. The network-side device according to Solution 1 or 2, wherein the processing circuit is configured to transfer the target tracking task based on an Xn interface.

[0274] Solution 4. The network-side device according to Solution 3, wherein the processing circuit is configured to:

[0275] Sending a request for handing over the target tracking task to the network side device to be handed over, and receiving a confirmation of the request from the network side device to be handed over,

[0276] Sending the identification information to the network side device to be transferred, and

[0277] Receive verification information for verifying the target object from the to-be-handed network-side device.

[0278] Solution 5. The network-side device according to Solution 1 or 2, wherein the processing circuit is configured to transfer the target tracking task based on the N2 interface.

[0279] Solution 6. The network-side device according to Solution 5, wherein the processing circuit is configured to:

[0280] Sending a request for handing over the target tracking task to the network side device to be handed over through the mobile access management unit AMF, and receiving a confirmation of the request from the network side device to be handed over through the AMF,

[0281] Sending the identification information to the network side device to be handed over through the user plane unit UPF, and

[0282] Verification information for verifying the target object is received from the to-be-handed network side device through the UPF.

[0283] Scheme 7. A network side device according to any one of Schemes 1 to 6, wherein the processing circuit is configured to trigger the handover of the target tracking task based on an event reflecting that the target object is about to enter the perceptual coverage range of the network side device to be handed over from the perceptual coverage range of the network side device.

[0284] Solution 8. The network-side device according to Solution 7, wherein the event includes the network-side device detecting, based on the positioning information of the target object, that the target object is about to move out of the perception coverage range of the network-side device.

[0285] Solution 9. The network-side device according to Solution 7, wherein the event includes that the amplitude of the echo received by the network-side device from the target object is lower than a predetermined threshold during a predetermined duration and continues to decrease.

[0286] Solution 10. The network-side device according to any one of Solutions 1 to 9, wherein the processing circuit is configured to, when tracking the target object:

[0287] Utilize multiple beams to send sensing signals to the target object respectively,

[0288] receiving echo signals corresponding to the perception signals from the target object through the multiple beams, respectively; and

[0289] Based on a comparison of the amplitudes of the echo signals respectively corresponding to the multiple beams, the angles between the multiple beams and / or the central axes of the multiple beams are adaptively adjusted to obtain accurate positioning information of the target object.

[0290] Solution 11. The network side device according to Solution 10, wherein:

[0291] The processing circuit is configured to send the precise positioning information as the identification information to the network side device to be transferred, or

[0292] The processing circuit is configured to, upon receiving a request for precise information for identifying the target object from the to-be-handed network-side device, send the precise positioning information as the precise information to the to-be-handed network-side device.

[0293] Solution 12. The network-side device according to Solution 10 or 11, wherein the processing circuit is configured to obtain the size of the target object for initializing the angle between the multiple beams.

[0294] Solution 13. The network-side device according to Solution 12, wherein the number of the multiple beams is determined based on the size of the target object and / or the accuracy requirement of the target tracking task.

[0295] Solution 14. The network-side device according to any one of Solution 10 to Solution 13, wherein the processing circuit is configured to:

[0296] Selecting the central axes of the multiple beams to align with the center of the target object,

[0297] constructing a graph surrounding the target object with the central axis as the center, and

[0298] Three-dimensional beamforming is performed to form the plurality of beams directed toward the perimeter of the pattern, respectively.

[0299] Solution 15. A network-side device according to Solution 14, wherein the processing circuit is configured to expand the perimeter and point the multiple beams toward the perimeter respectively, thereby adjusting the angles between the multiple beams, when a predetermined number of beams among the multiple beams meet the following conditions: for each beam among the predetermined number of beams, the amplitude of the echo signal corresponding to the beam is greater than or equal to a predetermined amplitude threshold, and the slope of the curve of the change of the amplitude of the echo signal corresponding to the beam relative to the angle between the beam and the central axis is less than a predetermined slope threshold.

[0300] Solution 16. A network-side device according to Solution 14, wherein the processing circuit is configured to reduce the perimeter and point the multiple beams toward the perimeter respectively, thereby adjusting the angles between the multiple beams, when a predetermined number of beams among the multiple beams meet the following conditions: for each beam among the predetermined number of beams, the amplitude of the echo signal corresponding to the beam is less than a predetermined amplitude threshold, and the slope of the curve of the change of the amplitude of the echo signal corresponding to the beam relative to the angle between the beam and the central axis is less than a predetermined slope threshold.

[0301] Solution 17. A network-side device according to Solution 14, wherein the processing circuit is configured to determine that the multiple beams are respectively aligned with the edges of the target object when a predetermined number of beams among the multiple beams meet the following conditions: for each beam among the predetermined number of beams, the amplitude of the echo signal corresponding to the beam is within a predetermined amplitude range, and the slope of the curve of the change of the amplitude of the echo signal corresponding to the beam relative to the angle between the beam and the central axis is greater than or equal to a predetermined slope threshold.

[0302] Solution 18. A network-side device according to Solution 14, wherein the processing circuit is configured to adjust the central axis toward the lower quadrant or toward the beam corresponding to the amplitude of the maximum echo signal when the difference between the amplitudes of the echo signals corresponding to the multiple beams exceeds a predetermined amplitude difference threshold, until the difference between the amplitudes of the echo signals corresponding to the multiple beams is less than the predetermined difference threshold, wherein the quadrant includes beams whose number is greater than a predetermined number threshold and whose corresponding echo signal amplitudes are greater than or equal to a predetermined beam amplitude threshold.

[0303] Solution 19. A network-side device according to any one of Solutions 1 to 18, wherein the processing circuit is configured to receive perception information obtained by perceiving the target object from a perception device with a perception function, and to track the target object based on the perception information.

[0304] Solution 20. The network-side device according to Solution 19, wherein the processing circuit is configured to:

[0305] Sending a perception request for the target object to neighboring devices within a predetermined range of the network side device by broadcasting, and

[0306] The sensing device is selected based on the location of the target object from among the neighboring devices that return an acknowledgement regarding the sensing request.

[0307] Solution 21. The network-side device according to any one of Solutions 1 to 20, wherein:

[0308] The target objects are wild animal populations, and

[0309] The positioning information of the target object obtained by the network side device is input into a controller for controlling a camera, so as to control the camera to track and shoot the target object.

[0310] Solution 22. The network side device according to any one of Solutions 1 to 21, wherein the network side device is a base station.

[0311] Solution 23. The network-side device according to any one of Solutions 1 to 2 and 7 to 21, wherein the network-side device is a road-side unit.

[0312] Solution 24. An electronic device for wireless communication, comprising:

[0313] The processing circuit is configured to:

[0314] For a target object that is within the sensing coverage of a network side device that provides services for the electronic device but has not established a communication connection with the network side device, sensing the target object to obtain sensing information about the target object; and

[0315] The perception information is sent to the network side device, so that the network side device can track the target object based on the perception information.

[0316] Embodiment 25. The electronic device according to embodiment 24, wherein the processing circuit is configured to:

[0317] receiving a perception request for the target object broadcasted by the network side device, and

[0318] In response to the perception request, a confirmation is returned to the network-side device to notify the network-side device that the electronic device is to perceive the target object.

[0319] Solution 26. A method for wireless communication performed by a network-side device, comprising:

[0320] For a target object that is within the sensing coverage of the network side device but has not established a communication connection with the network side device, the target tracking task for the target object is transferred to the network side device to be transferred, whose sensing coverage the target object is about to enter, so that the network side device to be transferred can perform target tracking on the target object.

[0321] The network side device sends identification information for identifying the target object to the network side device to be transferred, so that the network side device to be transferred identifies the target object based on the identification information.

[0322] Solution 27. A method for wireless communication performed by an electronic device, comprising:

[0323] For a target object that is within the sensing coverage of a network side device that provides services for the electronic device but has not established a communication connection with the network side device, sensing the target object to obtain sensing information about the target object; and

[0324] The perception information is sent to the network side device, so that the network side device can track the target object based on the perception information.

[0325] Solution 28. A computer-readable storage medium having computer-executable instructions stored thereon, which, when executed, performs the method for wireless communication according to Solution 26 or 27.

Claims

1. A network side device for wireless communication, comprising: The processing circuit is configured to: For a target object that is within the sensing coverage of the network side device but has not established a communication connection with the network side device, the target tracking task for the target object is transferred to a network side device to be transferred whose sensing coverage the target object is about to enter, so that the network side device to be transferred can perform target tracking on the target object. The processing circuit is configured to send identification information for identifying the target object to the network side device to be transferred, so that the network side device to be transferred can identify the target object based on the identification information.

2. The network side device according to claim 1, wherein: The processing circuit is configured to: After receiving an instruction to identify the target object from the network side device to be transferred, stop sending the identification information to the network side device to be transferred, Verifying whether the network side device to be transferred successfully identifies the target object based on the verification information received from the network side device to be transferred and used to verify the target object, and When it is verified based on the verification information that the to-be-handed-over network-side device successfully identifies the target object, target tracking of the target object is stopped.

3. The network side device according to claim 1 or 2, wherein: The processing circuit is configured to transfer the target tracking task based on an Xn interface.

4. The network side device according to claim 3, wherein: The processing circuit is configured to: sending a request for handing over the target tracking task to the network side device to be handed over, and receiving a confirmation of the request from the network side device to be handed over, sending the identification information to the network side device to be transferred, and Receive verification information for verifying the target object from the to-be-transferred network side device.

5. The network side device according to claim 1 or 2, wherein: The processing circuit is configured to transfer the target tracking task based on the N2 interface.

6. The network side device according to claim 5, wherein: The processing circuit is configured to: Sending a request for handing over the target tracking task to the network side device to be handed over through a mobile access management unit AMF, and receiving a confirmation of the request from the network side device to be handed over through the AMF, Sending the identification information to the network side device to be handed over through the user plane unit UPF, and Verification information for verifying the target object is received from the network side device to be transferred through the UPF.

7. The network side device according to any one of claims 1 to 6, wherein: The processing circuit is configured to trigger the handover of the target tracking task based on an event reflecting that the target object is about to enter the sensed coverage range of the to-be-handed network side device from the sensed coverage range of the network side device.

8. The network side device according to claim 7, wherein: The event includes that the network side device detects, based on the positioning information of the target object, that the target object is about to move out of the sensing coverage range of the network side device.

9. The network side device according to claim 7, wherein: The event includes that the amplitude of the echo received by the network-side device from the target object is lower than a predetermined threshold during a predetermined duration and continues to decrease.

10. The network side device according to any one of claims 1 to 9, wherein: The processing circuit is configured to: Using multiple beams to send perception signals to the target object respectively, receiving echo signals corresponding to the perception signals from the target object through the multiple beams respectively, and Based on the comparison of the amplitudes of the echo signals respectively corresponding to the multiple beams, the angles between the multiple beams and / or the central axes of the multiple beams are adaptively adjusted to obtain the precise positioning information of the target object.

11. The network side device according to claim 10, wherein: The processing circuit is configured to send the precise positioning information as the identification information to the network side device to be transferred, or The processing circuit is configured to, when receiving a request for precise information for identifying the target object from the to-be-handed network side device, send the precise positioning information to the to-be-handed network side device as the precise information.

12. The network side device according to claim 10 or 11, wherein: The processing circuit is configured to obtain a size of the target object for initializing angles between the multiple beams.

13. The network side device according to claim 12, wherein: The number of the multiple beams is determined based on the size of the target object and / or the accuracy requirement of the target tracking task.

14. The network side device according to any one of claims 10 to 13, wherein: The processing circuit is configured to: Selecting the central axes of the multiple beams to align with the center of the target object, constructing a graph surrounding the target object with the central axis as the center, and Three-dimensional beamforming is performed to form the plurality of beams respectively directed toward the perimeter of the pattern.

15. The network side device according to claim 14, wherein: The processing circuit is configured to expand the perimeter and point the multiple beams toward the perimeter respectively, thereby adjusting the angle between the multiple beams, if a predetermined number of beams among the multiple beams satisfy the following conditions: for each beam among the predetermined number of beams, the amplitude of the echo signal corresponding to the beam is greater than or equal to a predetermined amplitude threshold, and the slope of the curve of the change of the amplitude of the echo signal corresponding to the beam relative to the angle between the beam and the central axis is less than a predetermined slope threshold.

16. The network side device according to claim 14, wherein: The processing circuit is configured to reduce the perimeter and point the multiple beams toward the perimeter respectively, thereby adjusting the angle between the multiple beams, when a predetermined number of beams among the multiple beams satisfy the following conditions: for each beam among the predetermined number of beams, the amplitude of the echo signal corresponding to the beam is less than a predetermined amplitude threshold, and the slope of the curve of the change of the amplitude of the echo signal corresponding to the beam relative to the angle between the beam and the central axis is less than a predetermined slope threshold.

17. The network side device according to claim 14, wherein: The processing circuit is configured to determine that the multiple beams are respectively aligned with the edges of the target object when a predetermined number of beams among the multiple beams satisfy the following conditions: for each beam among the predetermined number of beams, the amplitude of the echo signal corresponding to the beam is within a predetermined amplitude range, and the slope of a curve of the change of the amplitude of the echo signal corresponding to the beam relative to the angle between the beam and the central axis is greater than or equal to a predetermined slope threshold.

18. The network side device according to claim 14, wherein: The processing circuit is configured to adjust the central axis toward the lower quadrant or toward the beam corresponding to the amplitude of the maximum echo signal when the difference between the amplitudes of the echo signals respectively corresponding to the multiple beams exceeds a predetermined amplitude difference threshold, until the difference between the amplitudes of the echo signals respectively corresponding to the multiple beams is less than the predetermined difference threshold, wherein the quadrant includes beams whose number is greater than a predetermined number threshold and whose corresponding echo signal amplitudes are greater than or equal to a predetermined beam amplitude threshold.

19. The network side device according to any one of claims 1 to 18, wherein: The processing circuit is configured to receive perception information acquired by perceiving the target object from a perception device having a perception function, and to track the target object based on the perception information.

20. The network side device according to claim 19, wherein: The processing circuit is configured to: Sending a sensing request for sensing the target object to neighboring devices within a predetermined range of the network side device by broadcasting, and The sensing device is selected from among neighboring devices that return an acknowledgement regarding the sensing request based on the location of the target object.

21. The network side device according to any one of claims 1 to 20, wherein: The target objects are wild animal populations, and The positioning information of the target object obtained by the network side device is input into a controller for controlling a camera, so as to control the camera to track and shoot the target object.

22. The network side device according to any one of claims 1 to 21, wherein: The network side device is a base station.

23. The network side device according to any one of claims 1 to 2 and 7 to 21, wherein: The network side device is a road side unit.

24. An electronic device for wireless communication, comprising: The processing circuit is configured to: For a target object that is within the sensing coverage of a network side device that provides services for the electronic device but has not established a communication connection with the network side device, sensing the target object to obtain sensing information about the target object; and The perception information is sent to the network side device, so that the network side device can track the target object based on the perception information.

25. The electronic device according to claim 24, wherein: The processing circuit is configured to: receiving a perception request broadcasted by the network side device to perceive the target object, and In response to the perception request, a confirmation is returned to the network-side device to notify the network-side device that the electronic device is to perceive the target object.

26. A method for wireless communication performed by a network side device, comprising: For a target object that is within the sensing coverage of the network side device but has not established a communication connection with the network side device, the target tracking task for the target object is transferred to a network side device to be transferred whose sensing coverage the target object is about to enter, so that the network side device to be transferred can perform target tracking on the target object. The network side device sends identification information for identifying the target object to the network side device to be transferred, so that the network side device to be transferred identifies the target object based on the identification information.

27. A method for wireless communication performed by an electronic device, comprising: For a target object that is within the sensing coverage of a network side device that provides services for the electronic device but has not established a communication connection with the network side device, sensing the target object to obtain sensing information about the target object; and The perception information is sent to the network side device, so that the network side device can track the target object based on the perception information.

28. A computer-readable storage medium having computer-executable instructions stored thereon, which, when the computer-executable instructions are executed, perform the method for wireless communication according to claim 26 or 27.

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