Communication method and device

Abstract

The present application relates to a communication method and device. The method comprises: receiving a first sensing request from a second terminal, wherein the first sensing request is used for requesting a first terminal to report first sensing content of a first sensing service; and on the basis of a sensing privacy configuration of the first terminal, obtaining a first privacy check result, wherein the first privacy check result is used for determining whether to report the first sensing content.

Description

Communication methods and devices Technical Field

[0001] This application relates to the field of communications, and more specifically, to a communication method and apparatus. Background Technology

[0002] In integrated communication and sensing systems, third-party applications or terminals may initiate a first sensing request under a certain sensing service based on business needs. The terminal receiving the sensing request obtains sensing data or results by measuring reflected signals and reports them, or it may report existing sensing data or results. However, in existing sensing scenarios, the privacy and security of the sensing data or results of the terminal receiving the sensing request are not considered in side-link sensing scenarios.

[0003] Summary of the Invention

[0004] This application provides a communication method and device.

[0005] This application provides a communication method executed by a first terminal, including:

[0006] Receive a first perception request from a second terminal, wherein the first perception request is used to request the first terminal to report the first perception content of the first perception service;

[0007] Based on the privacy-aware configuration of the first terminal, a first privacy check result is obtained, wherein the first privacy check result is used to determine whether to report the first perceived content.

[0008] This application provides a communication method executed by a second terminal, including:

[0009] Send a first sensing request to a first terminal, wherein the first sensing request is used to request the first terminal to report the first sensing content of the first sensing service.

[0010] This application provides a first terminal, including:

[0011] The first communication unit is configured to receive a first sensing request from the second terminal, wherein the first sensing request is configured to request the first terminal to report the first sensing content of the first sensing service;

[0012] The first processing unit is configured to obtain a first privacy check result based on the privacy-aware configuration of the first terminal, wherein the first privacy check result is used to determine whether to report the first perceived content.

[0013] This application provides a second terminal, including:

[0014] The second communication unit is used to send a first sensing request to the first terminal, wherein the first sensing request is used to request the first terminal to report the first sensing content of the first sensing service.

[0015] By adopting the above scheme, when the first terminal receives a sensing request from the second terminal to report the first sensing content, it determines whether to report the first sensing content to the second terminal based on the first terminal's sensing privacy configuration. Thus, in a side-link sensing scenario, the terminal that needs to report the sensing content performs a privacy check to determine whether to expose the sensing content to other terminals, thereby achieving privacy protection for the sensing content on the first terminal side and improving data security in side-link sensing scenarios. Attached Figure Description

[0016] Figure 1 is a schematic diagram of an application scenario according to an embodiment of this application.

[0017] Figure 2 is a schematic flowchart of a communication method according to an embodiment of this application.

[0018] Figure 3 is a schematic flowchart of a communication method according to another embodiment of this application.

[0019] Figure 4 is a schematic flowchart of a privacy check process according to an embodiment of this application.

[0020] Figure 5 is a schematic flowchart of a privacy check process according to another embodiment of this application.

[0021] Figure 6 is a schematic block diagram of a first terminal according to an embodiment of the present application.

[0022] Figure 7 is a schematic block diagram of a second terminal according to an embodiment of the present application. Detailed Implementation

[0023] The technical solutions of this application embodiment can be applied to various communication systems, such as: LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), NR (New Radio), evolution of NR, WLAN (Wireless Local Area Network), WiFi (Wireless Fidelity), or other communication systems.

[0024] This application describes various embodiments in conjunction with network devices and terminals. The terminal can be mobile or fixed, and may also be referred to as a mobile station, user unit, etc. The terminal can be a station in a WLAN, or a smart terminal, wireless modem, laptop, tablet, etc. In this application embodiment, the terminal can be a VR (Virtual Reality) terminal / AR (Augmented Reality) terminal, industrial control terminal, autonomous driving terminal, telemedicine terminal, smart grid terminal, transportation safety terminal, smart city terminal, or smart home wireless terminal, etc. By way of example and not limitation, in this application embodiment, the terminal can also be a wearable device.

[0025] In this embodiment, the network device can be a device for communicating with a terminal. The network device can be an access point in a WLAN, an evolved base station in LTE, a relay station, a network device (gNB, the next generation Node B) in a vehicle-mounted device, wearable device, or NR network, or a network device in a future evolved PLMN (Public Land Mobile Network), or a network device in a non-terrestrial network, etc. By way of example and not limitation, in this embodiment, the network device can have mobility characteristics; for example, the network device can be a mobile device.

[0026] To facilitate understanding of the technical solutions of the embodiments of this application, the relevant technologies of the embodiments of this application are described below. The following relevant technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, and they all fall within the protection scope of the embodiments of this application.

[0027] Figure 1 exemplarily illustrates a communication system 100. The communication system includes network devices 110 and terminals 120. In one possible implementation, the communication system 100 may include multiple network devices 110, and the coverage area of ​​each network device 110 may include one or more terminals 120; this embodiment does not limit this. In another possible implementation, the communication system 100 may also include other network entities such as mobility management entities and access and mobility management functions; this embodiment does not limit this. The network devices may further include access network devices and first core network devices. That is, the communication system may also include multiple core networks for communicating with the access network devices. The access network devices may be base stations of LTE, LTE-A, or NR systems. Taking the communication system shown in Figure 1 as an example, the communication devices may include network devices and terminals with communication functions. The communication devices may also include other devices in the communication system, such as network controllers, mobility management entities, and other network entities; this embodiment does not limit this.

[0028] Figure 2 is a schematic flowchart of a communication method executed by a first terminal according to an embodiment of this application. The method includes at least a portion of the following.

[0029] S210. Receive a first sensing request from a second terminal, wherein the first sensing request is used to request the first terminal to report the first sensing content of the first sensing service.

[0030] S220. Based on the privacy-aware configuration of the first terminal, a first privacy check result is obtained, wherein the first privacy check result is used to determine whether to report the first perceived content.

[0031] Figure 3 is a schematic flowchart of a communication method executed by a second terminal according to an embodiment of this application. The method includes at least a portion of the following.

[0032] S310. Send a first sensing request to the first terminal, wherein the first sensing request is used to request the first terminal to report the first sensing content of the first sensing service.

[0033] The first terminal can be a terminal with at least one of the following functions: receiving sensing requests, performing sensing, and obtaining sensing content. In some examples, the first terminal may also be called a sensing terminal, or an auxiliary sensing terminal, etc., and we will not limit or exhaust all possible names here.

[0034] The second terminal can be a terminal with at least one of the following functions: initiating sensing, requesting sensing content, etc. In some possible cases, the second terminal may also have the function of performing sensing functions and / or obtaining sensing content. In some examples, the second terminal can be a Client UE (User Equipment).

[0035] In some possible implementations, the first terminal performs a privacy check after the second terminal establishes a side link.

[0036] Before sending the first sensing request to the first terminal, the second terminal may perform the following process: the second terminal and the first terminal establish a side link. This establishment of a side link between the second terminal and the first terminal may refer to the establishment of a secure side link between them.

[0037] Sidelink (SL) can also be called PC5 link or simply sidelink. In the following text, sidelink, sidelink and PC5 link have the same meaning and will not be explained again.

[0038] The method by which the second terminal establishes a sidelink with the first terminal may include: the second terminal and the first terminal establishing a sidelink between the first terminal and the second terminal using a unicast secure link mechanism or a network-assisted secure connection mechanism. This embodiment does not limit the specific processing method for establishing the sidelink under the unicast secure link mechanism or the network-assisted secure connection mechanism.

[0039] Optionally, before sending the first sensing request to the first terminal, the second terminal may establish a sidelink with the first terminal. The second terminal may also establish a sidelink with each of one or more other terminals. Since the method by which each of the one or more other terminals establishes a sidelink with the second terminal is the same as the method by which the second terminal establishes a sidelink with the first terminal, it will not be described in detail. Furthermore, it should be understood that this embodiment does not limit the number of terminals with which the second terminal establishes a sidelink; as long as the second terminal establishes a sidelink with at least the first terminal before sending the first sensing request, it is within the scope of protection of this embodiment.

[0040] Furthermore, before the second terminal establishes a sidelink with the first terminal, the processing of the second terminal may also include: obtaining discovery security materials from the first network device and performing a discovery process to discover the first terminal.

[0041] The discovery security material may include discovery security material for the first terminal and / or the second terminal.

[0042] The first network device can be a first core network device, which may include AMF (Access and Mobility Management Function), etc. Alternatively, the first network device may also be an access network-side device or other types of network devices. This embodiment does not limit or exhaustively list all possible types of the first network device.

[0043] The discovery of secure materials can at least be used by the second terminal to perform a discovery process in order to discover the first terminal. This embodiment does not limit the specific content of the discovered secure materials or the specific processing method by which the second terminal discovers the first terminal.

[0044] As described in the foregoing embodiments, the second terminal may establish sidelinks with the first terminal and one or more other terminals. Therefore, the processing before the second terminal establishes a sidelink with each of the one or more other terminals may further include: obtaining discovery security materials from the first network device and performing a discovery process to discover one or more other terminals.

[0045] It should be noted that if currently only the second terminal is connected to the network side (such as the first network device), while the first terminal (or the first terminal and one or more other terminals) is not connected to the network side, then the discovery security material of the first terminal (or the first terminal and one or more other terminals) can be sent to the first terminal (or the first terminal and one or more other terminals) during the process of establishing a side link between the second terminal and the first terminal or other possible processes, and / or the discovery security material of one or more other terminals can be sent to each other terminal during the process of establishing a side link between the second terminal and each other terminal or other possible processes. No specific sending process or timing is limited here. If the second terminal, the first terminal (or the first terminal and one or more other terminals), and the network side are all connected, then the first terminal, the second terminal, and each other terminal can obtain their respective discovery security material from the network side before performing the discovery process.

[0046] In some embodiments, on the second terminal side, sending a first sensing request to the first terminal includes: sending the first sensing request to the first terminal via a side link between the first terminal and the second terminal. On the first terminal side, receiving the first sensing request from the second terminal includes: receiving the first sensing request from the second terminal via a side link between the first terminal and the second terminal.

[0047] The second terminal can generate and send a first sensing request when there is a business need. The first sensing request can also be called a first sensing business request or a first sensing service request, etc., and we will not limit or exhaust all possible names for the first sensing request here.

[0048] The processing of the second terminal before sending the first sensing request may further include: determining a first sensing mode based on the auxiliary sensing functions supported by each of the one or more terminals, wherein the one or more terminals include at least one of the following: the first terminal, the second terminal, and the third terminal.

[0049] In the one or more terminals, the auxiliary sensing function supported by each terminal may include at least one of the following: the terminal supports auxiliary sensing function in self-transmitting and self-receiving sensing mode, the terminal supports auxiliary sensing function in signal receiving mode, and the terminal supports auxiliary sensing function in signal transmitting mode.

[0050] The second terminal can determine or acquire the auxiliary sensing functions supported by each terminal by detecting secure materials, or it may use other methods to determine or acquire the auxiliary sensing functions supported by each terminal. This embodiment does not limit the method by which the second terminal acquires the auxiliary sensing functions supported by each terminal.

[0051] Optionally, the auxiliary sensing functions supported by each terminal can be determined based on the discovery of security materials. In this case, the discovery of security materials can also be used to authorize the sensing roles of one or more terminals. The authorization of the sensing roles of each of the one or more terminals enables the second terminal to determine the auxiliary sensing functions supported by each terminal. The specific content of the discovery of security materials is not limited in this embodiment, as long as the discovery of security materials can be used by the second terminal to perform the discovery process to discover terminals and / or authorize the sensing roles of terminals, it is within the scope of protection of this embodiment.

[0052] The first sensing mode includes one of the following: the first terminal sends a sensing signal and measures the reflected signal; the second terminal sends a sensing signal and the first terminal measures the reflected signal; or the third terminal sends a sensing signal and the first terminal measures the reflected signal. The third terminal is different from both the first and second terminals.

[0053] The specific processing by which the second terminal determines the first sensing mode based on the auxiliary sensing functions supported by each of one or more terminals may include one of the following: If the first terminal supports an auxiliary sensing function in a self-transmitting and self-receiving sensing mode, the first sensing mode is determined to be the first terminal sending a sensing signal and measuring the reflected signal; if the first terminal supports an auxiliary sensing function in a signal receiving mode and the second terminal itself supports an auxiliary sensing function in a signal transmitting mode, the first sensing mode is determined to be the second terminal sending a sensing signal and the first terminal measuring the reflected signal; if the first terminal supports an auxiliary sensing function in a signal receiving mode and the third terminal supports an auxiliary sensing function in a signal transmitting mode, the first sensing mode is determined to be the third terminal sending a sensing signal and the first terminal measuring the reflected signal. It should be understood that this is merely an illustrative example; in actual processing, the second terminal may also use other methods to determine the first sensing mode, and this embodiment does not limit or exhaustively list such methods.

[0054] The first sensing request carries at least one of the following: the type of the first sensing service, the first sensing area, the first sensing accuracy, the first sensing effective time, the first sensing reported content, and the first sensing mode.

[0055] The first sensing service can be any one of all sensing services. For example, the first sensing service can be determined by the second terminal from all sensing services based on its own business needs. This embodiment does not limit the specific determination method. All sensing services can be sensing services that the second terminal can acquire sensing content from, or all sensing services can refer to all sensing services included or supported by the integrated communication sensing system. All sensing services can be divided into one or more types, and each type can include one or more sensing services. Any sensing service can also be called a sensing service or a sensing application. The type of the first sensing service can be any one of one or more types, and the type of the first sensing service can also be called the type to which the first sensing service belongs.

[0056] For example, one or more types may include at least one of the following: intrusion detection, health monitoring, trajectory monitoring, weather detection, vehicle-to-everything (V2X) communication, etc.

[0057] Among them, the perception service under the intrusion detection type can be used to monitor residential or office areas, detect unauthorized entry behavior, etc., at least one of the following; the perception service under the intrusion detection type, which monitors residential or office areas, detects unauthorized entry behavior, etc., can also be linked with the security system to provide real-time alarms and records.

[0058] Sensing services under the health monitoring category can be used to track physiological indicators, which may include at least one of the following: heart rate, blood pressure, sleep quality, etc. The physiological indicators tracked by sensing services under the health monitoring category can be linked with medical service providers for health management and disease prevention.

[0059] The perception service under the trajectory monitoring type can be used to record and analyze the movement trajectory of a target object, which may include at least one of the following: an individual, a vehicle, or a drone. The movement trajectory of the target object recorded and analyzed by the perception service under the trajectory monitoring type can be used for traffic planning or personal behavior analysis, and can also be integrated with urban management systems to optimize traffic flow and urban layout.

[0060] Sensing services under the weather detection category can be used to collect meteorological data; the meteorological data collected by sensing services under the weather detection category can be used to provide accurate local weather forecasts, and can also be used for agriculture, urban planning and outdoor activity planning.

[0061] Perception services under the vehicle-to-everything (V2X) application type can be used to monitor and analyze vehicle operation data. The vehicle operation data monitored and analyzed by the perception services under this V2X application type can be used to improve road safety and traffic efficiency, and can also be used to support autonomous driving technology to enhance travel experience and safety.

[0062] It should be noted that the above is only an exemplary description of one or more types that all sensing services may be divided into. In actual processing, the sensing services supported or included by the integrated sensing system may be divided into more types. This example does not limit or exhaust all possible types of sensing services.

[0063] The first sensing area may refer to the area where the first sensing service is performed. The first sensing area may include at least one of the following: one or more first network locations, one or more first geographical regions.

[0064] The one or more first network locations may include at least one of the following: one or more first tracking areas, one or more first cells, or one or more first geographical areas. Any first tracking area may be represented by at least one of the following: TAC (Tracking Area Code) or TAI (Tracking Area Identity); any first cell may be represented by at least one of the following: ID (Identity document), PCI (Physical Cell Identifier), etc.

[0065] One or more first geographic regions can be represented by geographic coordinates. For example, any first geographic region can be a region within a first longitude range and / or a first latitude range.

[0066] The first sensing precision can be used to indicate the sensing precision used by the first terminal when performing the first sensing service. The first sensing precision can be any one of one or more sensing precisions. Here, sensing precision can also be referred to as precision mode, sensing precision mode, etc., and no limit or exhaustive list of all possible names for sensing precision is made here.

[0067] For example, the sensing accuracy can be divided into three modes or three levels: high, medium, and low. The one or more sensing accuracies may include at least one of the following: high accuracy mode, medium accuracy mode, and low accuracy mode.

[0068] High-precision sensing services provide detailed data (or sensing data or sensing content) collection, suitable for sensing services or scenarios requiring highly accurate information (such as sensing services in health monitoring). Medium-precision sensing services offer a balance between data detail and privacy protection, suitable for sensing services or scenarios involving daily life monitoring (such as sensing services in trajectory monitoring). Low-precision sensing services collect only necessary summary information to maximize privacy protection (e.g., sensing services in weather detection may only collect general area information).

[0069] Accordingly, the first perception precision carried in the first perception request can be used to instruct the first terminal to use one of the high precision mode, medium precision mode, or low precision mode when performing the first perception service.

[0070] It should be understood that this example only uses the division of perception accuracy into three modes: high, medium, and low. In actual processing, perception accuracy can also be divided in other ways. For example, perception accuracy can be divided into levels 1 to 5 or more, where the higher the level number, the higher the perception accuracy, or the lower the level number, the higher the perception accuracy. Alternatively, perception accuracy can be divided in other ways as well. This example does not limit or exhaust all possible ways of dividing perception accuracy.

[0071] The first sensing activation time may include at least one of the following: a specified start time, a specified end time, or a specified duration. For example, the first sensing activation time includes a specified start time and a specified end time. Accordingly, the first sensing activation time can be used to instruct the first terminal to perform the first sensing service within the specified start time to the specified end time, and / or to instruct the first terminal to obtain the sensing content of the first sensing service within the specified start time to the specified end time.

[0072] The first perception report content can be used to instruct the first terminal to report the data type of the first perception content collected under the first perception service. The data type of the first perception content can be at least one of one or more optional data types.

[0073] For example, the one or more optional data types include at least one of the following: personal data, environmental data, behavioral data, etc. Personal data can refer to data obtained when the monitored target is a person, and may include at least one of the following: personal steps, personal location, personal physiological indicators, etc. Environmental data may include at least one of the following: temperature, humidity, noise level, etc. Behavioral data can refer to data on related behaviors obtained when the monitored target is a person or object, and may include movement trajectories, etc. It should be understood that this is only an illustrative description of one or more optional data types. In actual processing, optional data types may include, but are not limited to, the above-mentioned types. This example does not limit or exhaustively list all possible types of optional data types.

[0074] It should be noted that this is only an exemplary description of the content reported by the first perception. In actual processing, the content reported by the first perception may also include other instructions, such as: the first terminal reports the first perception content under the first perception service including the original perception data and / or the first terminal reports the first perception content under the first perception service including the perception results, etc. This is not limited or exhaustive.

[0075] The method for determining the first sensing mode and the content it includes are the same as in the aforementioned embodiments, and will not be repeated here.

[0076] Optionally, in addition to carrying at least one of the above, the first perception request may also include at least one of the following: the identifier of the first perception service, relevant information of the target object, the identifier of the first terminal, the identifier of the second terminal, the application layer identifier (application layer ID) of the third terminal, the application layer ID of the second terminal, etc.

[0077] The relevant information of the target object may include at least one of the following: description information of the target object, identifier of the target object, number of the target object, location information of the target object, etc. The target object can be any type such as a person, equipment, or object, and this embodiment does not limit it.

[0078] The identifier of the first terminal may include at least one of the following: a permanent identifier, a temporary identifier, etc. The permanent identifier may also be called a real identifier or a long-term identifier, etc. The composition or allocation method of the temporary identifier is not limited in this embodiment; as long as the temporary identifier differs from the permanent identifier, it is within the scope of protection of this embodiment. This embodiment does not limit all possible types of the identifier of the first terminal.

[0079] The identifier of the second terminal may include at least one of the following: a permanent identifier of the second terminal, a temporary identifier of the second terminal, etc.

[0080] The application layer ID of the second terminal is different from the identifier of the second terminal.

[0081] The application layer ID of the third terminal and / or the application layer ID of the second terminal can be used to assist the first terminal in determining at least one of the relevant parameters of the first sensing service (such as the identifier and type of the first sensing service) and the relevant parameters of the first sensing content (such as the type of the first sensing content).

[0082] It should be noted that the above is only an exemplary description of the content carried by the first perception request, and no limit or exhaustive list of all possible contents carried by the first perception request is made here.

[0083] In one embodiment, the first sensing mode is either the second terminal sending a sensing signal and the first terminal measuring the reflected signal, or the first terminal sending a sensing signal and measuring the reflected signal. The second terminal sends a first sensing request to the first terminal via a side link between the first and second terminals. In this embodiment, the first sensing request may carry at least one of the following: the type of the first sensing service, the first sensing area, the first sensing accuracy, the first sensing activation time, the first sensing reporting content, the first sensing mode, etc.; the first sensing request may not carry the application layer ID of the third terminal; the specific descriptions of the various contents that the first sensing request may carry are the same as in the aforementioned embodiments and will not be repeated.

[0084] In one embodiment, the first sensing mode is that the third terminal sends a sensing signal and the first terminal measures the reflected signal.

[0085] The second terminal needs to send the first sensing request to the first terminal through the side link between the first terminal and the second terminal.

[0086] It should be noted that in this embodiment, the first sensing mode involves a sensing signal being sent by a third terminal. Therefore, the first sensing request may carry the application layer identifier (or application layer ID) of the third terminal and / or the application layer ID of the second terminal. Furthermore, the first sensing request may also carry at least one of the following: the type of the first sensing service, the first sensing area, the first sensing accuracy, the first sensing activation time, the first sensing reporting content, the first sensing mode, etc. The specific descriptions of the various contents that the first sensing request may carry are the same as in the aforementioned embodiments and will not be repeated here.

[0087] In this embodiment, the processing of the second terminal may further include: when the first sensing mode is that the third terminal sends a sensing signal and the first terminal measures the reflected signal, sending a second sensing request to the third terminal, wherein the second sensing request is used to instruct the third terminal to send the sensing signal.

[0088] Sending the second sensing request to the third terminal includes sending the second sensing request through the side link between the second terminal and the third terminal. The relevant processing for establishing the side link between the third terminal and the second terminal is the same as the aforementioned processing for establishing the side link between the first terminal and the second terminal, and will not be repeated here.

[0089] The second sensing request may carry at least one of the following: the type of the first sensing service, the first sensing area, the first sensing mode, the identifier of the first terminal, the application layer identifier (or application layer ID) of the first terminal, relevant information of the target object, etc. The descriptions of the above contents are the same as in the foregoing embodiments and will not be repeated. This is merely an exemplary description of the second sensing request; this embodiment does not limit the content that the second sensing request may carry. As long as the second sensing request can be used to enable the third terminal to determine that a sensing signal needs to be sent, it is within the scope of protection of this embodiment.

[0090] After the third terminal receives the second sensing request, this embodiment does not limit the specific time period for sending the sensing signal or the relevant transmission parameters used to send the sensing signal.

[0091] In some embodiments, after receiving a first sensing request from a second terminal, the first terminal can obtain a first privacy check result based on the first terminal's sensing privacy configuration.

[0092] The privacy configuration of the first terminal is either stored by the first terminal or configured by the second terminal.

[0093] Optionally, the perceived privacy configuration of the first terminal is stored by the first terminal itself. In this case, the perceived privacy configuration may be pre-stored or generated by the user of the first terminal. This embodiment does not limit the specific method by which the first terminal configures or stores the perceived privacy configuration.

[0094] Optionally, the privacy-aware configuration of the first terminal is configured by the second terminal for the first terminal.

[0095] In this case, the second terminal may have the first terminal's privacy-aware configuration stored in advance, or the second terminal may also obtain the first terminal's privacy-aware configuration.

[0096] For example, the processing of the second terminal may further include: obtaining the perceived privacy configuration of the first terminal.

[0097] The second terminal obtains the perceived privacy configuration of the first terminal from a second network device. Specifically, this can be done by the second terminal obtaining the perceived privacy configuration of the first terminal directly from the second network device, or by the second terminal obtaining the perceived privacy configuration of the first terminal from the second network device (e.g., through an AMF).

[0098] The second network device may include at least one of the following: GMLC (Gateway Mobile Location Center), UDM (Unified Data Management), and UDR (Unified Data Repository). This is merely an exemplary description of the second network device, and this embodiment does not limit or exhaustively list all possible types of the second network device.

[0099] The process or timing by which the second terminal obtains the first terminal's perception privacy configuration from the second network device is not limited in this embodiment. As long as the second terminal can obtain the first terminal's perception privacy configuration before sending the first perception request, it is within the protection scope of this embodiment.

[0100] For example, the second terminal obtaining the first terminal's perceived privacy configuration from the second network device can be achieved by the second terminal obtaining the first terminal's perceived privacy configuration from the second network device during the SL-MT-LR Procedure (Side Link Terminal Location Request Procedure). Correspondingly, the second network device can send the first terminal's perceived privacy configuration to the second terminal during the side link terminal location request procedure.

[0101] It should be noted that the second terminal may also obtain the perceived privacy configuration of other terminals from the second network device. The processing method is similar to that of obtaining the perceived privacy configuration of the first terminal, so it will not be described in detail.

[0102] The side-link terminal location request process can be executed at the same time or after the second terminal obtains the discovered security material from the first network device, or at other times. This embodiment does not limit this.

[0103] The processing on the second terminal may further include sending the first terminal's privacy-aware configuration to the first terminal. The timing of the second terminal sending the first terminal's privacy-aware configuration to the first terminal may be during the establishment of a sidelink between the second terminal and the first terminal, or it may be at other times (such as when sending a first sensing request), etc. As long as the timing of sending the first terminal's privacy-aware configuration to the first terminal is before the first terminal performs a privacy check, it falls within the protection scope of this embodiment.

[0104] The sensing privacy configuration may include a Sensing privacy profile; this profile may include at least a Sensing Privacy Indication (SPI). Specifically, an SPI is a mechanism for managing and protecting user privacy across various sensing services. Sensing services may include one or more types, each potentially involving the collection and analysis of personal or environmental data. The purpose of the SPI is to provide users with control over the collection and use of this data to ensure their privacy is properly handled. The types of sensing services may include intrusion detection, health monitoring, trajectory monitoring, weather detection, and vehicle-to-everything (V2X) communication, as detailed in the foregoing embodiments and will not be repeated here.

[0105] It should be understood that the perceived privacy configuration file may contain other content, and this embodiment does not limit or exhaustively list all the content that may be included in the perceived privacy configuration file. In other words, in this embodiment, the perceived privacy configuration of the first terminal may mainly refer to the SPI of the first terminal, or the perceived privacy configuration of the first terminal may have the same meaning as the SPI of the first terminal, which will not be repeated below. The implementation of the SPI requires close cooperation between the perceived service provider and the user to ensure that the privacy settings can be accurately reflected and executed. The user interaction system provided by the first terminal may need to provide a simple and easy-to-understand user interface so that users can adjust the SPI settings according to their own needs.

[0106] The first terminal's perception privacy configuration can be used to indicate at least one of the following: whether the first terminal is allowed to enable one or more perception services, and the relevant parameters of each of the one or more perception services that are allowed to be enabled.

[0107] The privacy configuration of the first terminal can be a global setting or a segmented service (or a segmented set of different privacy services) setting. A global setting means that the user can choose a uniform privacy setting for all privacy services; a segmented service setting means that the user can have different privacy preferences for different privacy services.

[0108] Specifically, whether the first terminal is allowed to enable one or more sensing services can be set at at least one granularity, such as terminal, sensing service, type, region, time period, or event.

[0109] In one example, whether the first terminal is allowed to enable one or more sensing services can be set at the terminal level as a whole.

[0110] For example, the first terminal's perception privacy configuration can include: allowing the first terminal to enable each perception service, or disallowing the first terminal to enable each perception service. In other words, by configuring the first terminal's perception privacy configuration globally at the terminal level, it can indicate whether the collection of perception content under all perception services is fully allowed or completely prohibited.

[0111] In one example, whether the first terminal is allowed to enable one or more sensing services can be set at at least one granularity, such as sensing service, type, region, time period, or event.

[0112] In one scenario, whether the first terminal is allowed to enable one or more sensing services, with the setting at the sensing service granularity.

[0113] For example, whether to allow the first terminal to enable one or more sensing services may include: whether to allow the first terminal to enable the m-th sensing service, where m is an integer greater than or equal to 1, and the m-th sensing service is any one of the one or more sensing services. That is, the sensing privacy configuration of the first terminal may include: allowing the first terminal to enable the m-th sensing service, or disallowing the first terminal to enable the m-th sensing service.

[0114] In one scenario, whether the first terminal is allowed to enable one or more sensing services is set at a granular level based on at least one of the following: type, region, time period, and event.

[0115] Whether the first terminal is allowed to enable one or more sensing services may include at least one of the following: whether the first terminal is allowed to enable one or more sensing services in one or more areas, whether the first terminal is allowed to enable one or more sensing services during one or more time periods, whether the first terminal is allowed to enable one or more types of sensing services, and whether the first terminal is allowed to enable one or more sensing services under one or more events.

[0116] For example, at the regional granularity level, whether the first terminal is allowed to enable one or more sensing services can include: whether the first terminal is allowed to enable the m-th sensing service in one or more regions. That is, the sensing privacy configuration of the first terminal can include: allowing the first terminal to enable the m-th sensing service in one or more first regions, and / or disallowing the first terminal to enable the m-th sensing service in one or more second regions. Here, the first region and the second region are different. It should be noted that the explanation regarding whether the first terminal is allowed to enable one or more sensing services in one or more regions is similar to the explanation regarding whether the first terminal is allowed to enable the m-th sensing service in one or more regions. The only difference is that the regions where the first terminal is allowed to enable a sensing service may be different from those of the m-th sensing service, and / or the regions where the first terminal is disallowed to enable a sensing service may be different from those of the m-th sensing service. This will not be elaborated further.

[0117] For example, at the time-period granularity, whether the first terminal is allowed to enable one or more sensing services can include: whether the first terminal is allowed to enable the m-th sensing service in one or more time periods. That is, the sensing privacy configuration of the first terminal can include: allowing the first terminal to enable the m-th sensing service in one or more first time periods, and / or disallowing the first terminal to enable the m-th sensing service in one or more second time periods. Here, the first time period and the second time period are different. It should be noted that the explanation regarding whether the first terminal is allowed to enable one or more sensing services in one or more time periods is similar to the explanation regarding whether the first terminal is allowed to enable the m-th sensing service in one or more time periods. The only difference is that the time periods during which the first terminal is allowed to enable a different sensing service may be different from those for the m-th sensing service, and / or the time periods during which the first terminal is disallowed to enable a different sensing service may be different from those for the m-th sensing service. This will not be elaborated further.

[0118] By setting the time periods for data collection, users can effectively control the time frame of data collection and further enhance privacy protection. For example, taking the m-th sensing service as an example, if the m-th sensing service is for important and urgent monitoring needs (24-hour uninterrupted monitoring), the user can set the m-th sensing service to full-time monitoring; if the user wants the m-th sensing service to collect data according to a set time period (such as monitoring personal activities only during the day), the user can set the m-th sensing service to scheduled monitoring.

[0119] For example, at the granularity of combining region and time period, whether the first terminal is allowed to enable one or more sensing services can include: whether the first terminal is allowed to enable the m-th sensing service in one or more time periods and one or more regions. That is, the sensing privacy configuration of the first terminal can include: allowing the first terminal to enable the m-th sensing service when it is located in one or more first time periods and one or more first regions, and / or disallowing the first terminal to enable the m-th sensing service when it is located in one or more second time periods and / or one or more second regions. It should be noted that the explanation regarding whether the first terminal is allowed to enable one or more sensing services in one or more time periods and one or more regions is similar to the explanation regarding whether the first terminal is allowed to enable the m-th sensing service in one or more time periods and one or more regions. The only difference is that the time periods and regions corresponding to different sensing services that allow the first terminal to enable that sensing service may be different from those of the m-th sensing service, and / or the time periods and regions corresponding to different sensing services that disallow the first terminal to enable that sensing service may be different from those of the m-th sensing service. This will not be elaborated further.

[0120] For example, at the type granularity level, whether the first terminal is allowed to enable one or more sensing services may include: whether the first terminal is allowed to enable the sensing service of the i-th type, where the i-th type can be any one of one or more types, and i is an integer greater than or equal to 1. That is, the sensing privacy configuration of the first terminal may include: allowing the first terminal to enable each sensing service under the i-th type, or disallowing the first terminal to enable each sensing service under the i-th type. The related descriptions of the one or more types are the same as in the aforementioned embodiments and will not be repeated; the related descriptions of whether the first terminal is allowed to enable sensing services under each of the one or more types are the same as the related descriptions of whether the first terminal is allowed to enable the sensing service of the i-th type and will not be repeated.

[0121] For example, at the granularity of combining type and region, whether the first terminal is allowed to enable one or more sensing services can include: whether the first terminal is allowed to enable the i-th type of sensing service in one or more regions. That is, the sensing privacy configuration of the first terminal can include: allowing the first terminal to enable each sensing service of the i-th type in one or more third regions, and / or disallowing the first terminal to enable each sensing service of the i-th type in one or more fourth regions. Here, the third region and the fourth region are different. It should be noted that the description of whether the first terminal is allowed to enable one or more types of sensing services in one or more regions is similar to the description of whether the first terminal is allowed to enable the i-th type of sensing service in one or more regions. The only difference is that the regions corresponding to different types of sensing services that allow the first terminal to enable that type of sensing service may be different from those corresponding to the i-th type of sensing service, and / or the regions corresponding to different types of sensing services that disallow the first terminal to enable that type of sensing service may be different from those corresponding to the i-th type of sensing service. This will not be elaborated further.

[0122] For example, at the granularity of combining type, region, and time period, whether the first terminal is allowed to enable one or more sensing services can include: whether the first terminal is allowed to enable the i-th type of sensing service in one or more time periods and one or more regions. That is, the sensing privacy configuration of the first terminal can include: allowing the first terminal to enable each sensing service of the i-th type in one or more third time periods and one or more third regions, and / or disallowing the first terminal to enable each sensing service of the i-th type in one or more fourth time periods and / or one or more fourth regions. It should be noted that the description of whether the first terminal is allowed to enable one or more types of sensing services and one or more regions in one or more time periods is similar to the description of whether the first terminal is allowed to enable the i-th type of sensing service in one or more time periods and one or more regions. The only difference is that the time periods and regions corresponding to different types of sensing services that allow the first terminal to enable that type of sensing service may be different from those of the i-th type of sensing service, and / or the time periods and regions corresponding to different types of sensing services that disallow the first terminal to enable that type of sensing service may be different from those of the i-th type of sensing service. This will not be elaborated further. Regarding the granularity of combining type, region, and time period, whether permission to obtain the sensing content under one or more sensing services from the first terminal is required, the relevant explanation is similar to the aforementioned explanation regarding whether the first terminal is allowed to enable one or more sensing services, and therefore will not be repeated.

[0123] For example, at the event granularity level, whether the first terminal is allowed to enable one or more sensing services may include: whether the first terminal is allowed to enable one or more sensing services under one or more events, or whether the first terminal is allowed to enable one or more types of sensing services under one or more events.

[0124] The one or more events can be configured according to the actual situation. For example, the one or more events can be the occurrence of certain specified accidents (such as traffic accidents). Taking traffic accidents as an example, the perception privacy configuration of the first terminal can include at least one of the following: allowing the first terminal to enable one or more perception services when a traffic accident occurs, allowing the first terminal to enable one or more types of perception services when a traffic accident occurs, disallowing the first terminal to enable one or more perception services when a traffic accident occurs, and disallowing the first terminal to enable one or more types of perception services when a traffic accident occurs.

[0125] Taking any one of the sensing services as the m-th sensing service as an example, if the user wants the m-th sensing service to start data collection when a specific event occurs or when it enters a certain location (such as accident detection in the Internet of Vehicles or entering a specific area), then the m-th sensing service can be set as event-driven monitoring processing.

[0126] It should be understood that the above is only an illustrative example. In actual processing, one or more of the granularities mentioned above can be used alone or in combination with any number of granularities. They are not listed here.

[0127] The first terminal's perception privacy configuration can also be used to indicate the relevant parameters of each of the one or more perception services that are allowed to be enabled. That is, the first terminal's perception privacy configuration can be used to indicate: one or more perception services that the first terminal is allowed to enable, and the relevant parameters of each perception service that the first terminal is allowed to enable.

[0128] The relevant parameters of each sensing service may include at least one of the following: the sensing accuracy of each sensing service, the reported content of each sensing service, the storage method of the sensing content under each sensing service, the transmission method of the sensing content under each sensing service, the access permissions of the sensing content under each sensing service, the processing device of the sensing content obtained by each sensing service, and the storage duration of the sensing content under each sensing service.

[0129] In this context, the perception accuracy of any perception service can be any one of one or more perception accuracies. This means users can choose different accuracy levels for different services / locations to balance their needs for privacy protection and service quality. The explanation regarding one or more perception accuracies is the same as in the previous embodiments and will not be repeated. In this way, users can choose different accuracy levels for different services to balance their needs for privacy protection and service quality.

[0130] The reported content of any sensing service can include the data type of the sensing content collected under that sensing service. The data type of the sensing content can be at least one of one or more optional data types. The relevant descriptions of one or more optional data types are the same as in the foregoing embodiments and will not be repeated here. In this way, users can choose to allow or deny the collection of specific types of data in order to better control and protect their privacy.

[0131] The storage method of the perceived content under any perception service may include encrypted storage or unencrypted storage of the perceived content under that perception service; in the case of encrypted storage, the storage method of the perceived content under any perception service may also include at least one of the following related information: encryption algorithm, key identifier, key type, key, etc., used when encrypting the perceived content under that perception service.

[0132] The transmission method of the perceived content under any perception service may include: encrypted transmission or unencrypted transmission of the perceived content under the perception service; in the case of encrypted transmission, the transmission method of the perceived content under any perception service may also include at least one of the following related information when encrypting the perceived content under the perception service: encryption algorithm, key identifier, key type, key, etc.

[0133] In this way, by encrypting the perceived content under the perception service, the security of data (i.e., perceived content) during transmission and storage can be ensured.

[0134] Access permissions for perceived content under any sensing service may include at least one of the following: a designated object authorized to access or obtain the perceived content under that sensing service; the perceived content under that sensing service being accessible to the designated object; wherein the designated object may include a service provider and / or an individual; and the designated object may access or request the perceived content under the sensing service through a device used by the object itself (e.g., a second terminal). This allows for strict restriction of access to sensitive data, authorizing only necessary service providers and individuals to access the corresponding perceived content.

[0135] The sensing content under any sensing service can be the raw sensing data obtained under the sensing service. Users can set up a processing device for the raw sensing data under any sensing service. This processing device can also be called a processing location. The function of the processing device can be to process the raw sensing data to obtain sensing results, etc. Here, we will not limit or exhaust all possible functions of the processing device.

[0136] The storage duration of perceived content under any sensing service can be configured according to actual conditions, such as 1 hour, 1 day, 10 days, 1 year, or longer or shorter. No limit or exhaustive list of storage durations is provided here. The starting recording time for the storage duration of perceived content under any sensing service can be the time when the perceived content was measured. When the sensing memory under a sensing service reaches the storage duration, the perceived content can be automatically deleted, thereby reducing the risk of long-term storage.

[0137] Furthermore, the storage duration of the perceived content under any perception service may also include: the storage duration of the perceived content under the perception service on the network side, and / or the storage duration of the perceived content under the perception service on the first terminal side. The storage duration of the perceived content under the perception service on the network side and the storage duration on the first terminal side may be the same or different; for example, the storage duration on the network side may be less than the storage duration on the first terminal side.

[0138] It should be understood that the above is only an illustrative example. The relevant parameters of any sensing service may also include other content. For example, the relevant parameters of the sensing service may also include: setting the source device or home device label for the sensing content under the sensing service, such as setting the source device or home device label for the first terminal as the first terminal for the sensing content under the sensing service. Here, we do not limit or exhaust all possible contents of the relevant parameters of the sensing service.

[0139] Here, the parameters for each sensing service that can be enabled (i.e., the parameters for each sensing service that the first terminal can enable) can be set at at least one granularity, such as terminal, sensing service, type, region, time period, or event.

[0140] In one example, the parameters for each sensing service that the first terminal is allowed to enable can be set at the terminal level as a whole.

[0141] For example, the privacy configuration of the first terminal may include allowing each sensing service enabled by the first terminal to use the same relevant parameters. For instance, the sensing parameters of a sensing service include the sensing accuracy of the sensing service and the storage duration of the sensing content under the sensing service. The sensing services allowed for the first terminal to enable include the m-th sensing service and the k-th sensing service. The sensing accuracy of both the m-th and k-th sensing services is medium, and the storage duration of the sensing content is 7 days. Here, m and k are both integers greater than or equal to 1, and m and k are distinct.

[0142] In one example, the parameters for each sensing service that the first terminal is allowed to enable can be set at a granularity of at least one of sensing service, type, region, time period, and event.

[0143] For example, by using the perception service as the granularity, the relevant parameters for each allowed perception service can be set separately. Suppose that the first terminal is allowed to enable the m-th perception service and the k-th perception service. Then, the perception privacy configuration of the first terminal can include: relevant parameters for the m-th perception service and relevant parameters for the k-th perception service. The relevant parameters for the m-th and k-th perception services may be the same or different. For example, the m-th perception service may have medium perception accuracy and a storage time of 1 day for the perceived content, while the k-th perception service may have high perception accuracy, a storage time of 10 days for the perceived content, and encrypted transmission of the perceived content.

[0144] For example, using regions as the granularity means that the parameters of the sensing services allowed to be enabled within the same region can be set to be the same, while the parameters of the sensing services allowed to be enabled in different regions can be at least partially different. For instance, the first terminal is allowed to enable the m-th and k-th sensing services in region 01, and the first terminal is allowed to enable the i-th sensing service in region 02, where i is an integer greater than or equal to 1, and i is different from m and k. The sensing privacy configuration of the first terminal may include: the parameters that allow the first terminal to enable the m-th and k-th sensing services in the first region; and the parameters that allow the first terminal to enable the i-th sensing service in region 02, such as the sensing accuracy of the m-th and k-th sensing services being medium and the storage time of the sensing content being 1 day, and the sensing accuracy of the i-th sensing service being high and the transmission method of the sensing content being encrypted.

[0145] The above is only an example. When actually setting the perception parameters of the perception service, it can be related to a single granularity or a combination of the above granularities. For example, when combining regional and time-period granularities, the perception services that are allowed to be opened in the same region and time period can be set to the same related parameters, while the related parameters of the perception services that are opened in different regions and time periods are different, etc. For the sake of simplicity, they will not be listed one by one here.

[0146] Optionally, the privacy-aware configuration (or the SPI of the first terminal) of the first terminal can be set with an overall effective time period. That is, the user can set the effective time (including start and end time) of the privacy-aware configuration (or the SPI of the first terminal) of the first terminal to adapt to different privacy needs.

[0147] Optionally, the privacy configuration of the first terminal (or the SPI of the first terminal) may also include other content, such as the application layer ID of the first terminal, the application layer ID of other auxiliary sensing terminals (such as the second terminal and / or the third terminal), etc., at least one of these. This does not limit or exhaustively list all the possible contents that the privacy configuration of the first terminal may include.

[0148] Additionally, it should be noted that SPI settings typically take precedence over other privacy settings subscribed to by the user, ensuring the user's privacy control over specific perceived services.

[0149] The specific content in the first terminal's perception privacy configuration that the first terminal performs privacy checks and obtains the first privacy check result is related to the content and granularity of the first terminal's perception privacy configuration and / or the content carried by the first perception request.

[0150] The first privacy check result is used by the first terminal to determine whether to report the first perceived content (or by the first terminal to determine whether it is able to or allowed to report the first perceived content).

[0151] The first privacy check result is used to indicate at least one of the following: whether the privacy check passed, whether the first terminal started the first sensing service, and whether the first terminal reported the first sensing content. Optionally, whether the first terminal started the first sensing service may include at least one of the following: whether the first terminal was allowed to start the first sensing service, whether the first terminal was able to start the first sensing service, and whether the first terminal had the right to start the first sensing service. Whether the first terminal reported the first sensing content may include at least one of the following: whether the first terminal was allowed to report the first sensing content, whether the first terminal was able to report the first sensing content, whether the first terminal had the right to report the first sensing content, whether the first terminal was allowed to report the first sensing content to the second terminal, whether the first terminal was able to report the first sensing content to the second terminal, and whether the first terminal had the right to report the first sensing content to the second terminal.

[0152] In one example, the privacy check performed by the first terminal may be unrelated to the content carried by the first sensing request. For instance, if the first terminal's sensing privacy configuration is globally configured to allow the first terminal to execute all sensing services and / or allow reporting sensing content under all sensing services, then the first terminal can directly perform a privacy check based on its sensing privacy configuration to obtain a first privacy check result indicating that the privacy check has passed, the first terminal has started the first sensing service, or the first terminal has reported at least one of the first sensing content.

[0153] In one example, the privacy check performed by the first terminal may be related to the content carried by the first perception request. The first terminal can perform the privacy check based on its perception privacy configuration and the first perception request to obtain the first privacy check result.

[0154] For example, the first perception request carries the type of the first perception service and the perception privacy configuration of the first terminal to indicate that the first terminal is allowed to enable one or more types of perception services. If the first perception service is determined to be the first type of perception service indicated by the perception privacy configuration of the first terminal, then a first privacy check result can be obtained, indicating that the privacy check passes, the first terminal starts the first perception service, and the first terminal reports at least one of the first perception contents. Otherwise, a first privacy check result can be obtained, indicating that the privacy check fails, the first terminal does not start the first perception service, and the first terminal does not report at least one of the first perception contents.

[0155] For example, the first perception request carries the type of the first perception service, the first perception area, and the first perception precision. If, based on the type of the first perception service and the first perception area, it is determined that the first perception service is a first type of perception service that the first terminal is allowed to open in the first area as indicated by the first terminal's perception privacy configuration, and the first perception precision matches the perception precision of the first type of perception service, then a first privacy check result can be obtained to indicate that the privacy check has passed, the first terminal has started the first perception service, and the first terminal has reported at least one of the first perception contents; otherwise, a first privacy check result can be obtained to indicate that the privacy check has failed, the first terminal has not started the first perception service, and the first terminal has not reported at least one of the first perception contents.

[0156] For example, if the first sensing request carries the type of the first sensing service and the identifier of the second terminal, and if the first sensing service is determined to be a sensing service of the first type that the first terminal is allowed to enable as indicated by the sensing privacy configuration of the first terminal, and the second terminal is determined to have access to the sensing content under the first sensing service based on the identifier of the second terminal and the access permissions of the sensing content under the first sensing service as indicated by the sensing privacy configuration of the first terminal, then a first privacy check result can be obtained indicating that the privacy check passes, the first terminal starts the first sensing service, and the first terminal reports at least one of the first sensing content; otherwise, a first privacy check result can be obtained indicating that the privacy check fails, the first terminal does not start the first sensing service, and the first terminal does not report at least one of the first sensing content.

[0157] When the first privacy check result indicates that the privacy check has passed, the first terminal has started the first sensing service, or the first terminal has reported the first sensing content, the first privacy check result can be used by the first terminal to determine whether it can report the first sensing content. Conversely, when the first privacy check result indicates that the privacy check has failed, the first terminal has not started the first sensing service, or the first terminal has not reported the first sensing content, the first privacy check result can be used by the first terminal to determine whether it cannot report the first sensing content. Optionally, the first terminal starting the first sensing service can refer to at least one of the following: the first terminal is able to start the first sensing service, is allowed to start the first sensing service, or has the right to start the first sensing service, etc.; the first terminal reporting the first sensing content can refer to at least one of the following: the first terminal is allowed to report the first sensing content, the first terminal is able to report the first sensing content, the first terminal has the right to report the first sensing content, the first terminal is allowed to report the first sensing content to the second terminal, the first terminal is able to report the first sensing content to the second terminal, or the first terminal has the right to report the first sensing content to the second terminal.

[0158] In addition, the first perception request may include at least one of the following: the first perception effective time, the first perception reported content, etc., mentioned in the previous embodiments. Each of the contents carried by the first perception request can be used to perform corresponding privacy checks using the relevant parameters in the first terminal's perception privacy configuration, including whether the first terminal is allowed to enable one or more perception services and / or each perception service that is allowed to be enabled, so as to obtain the first privacy check result. For the sake of simplicity, this embodiment will not elaborate on each one.

[0159] It should also be noted that the first sensing request may also carry the application layer ID of the third terminal and / or the application layer ID of the second terminal. In this case, the first terminal can also combine the application layer ID of the third terminal and / or the application layer ID of the second terminal to determine or assist in determining at least one of the relevant parameters of the first sensing service, the relevant parameters of the returned first sensing content, etc. For example, if the first sensing request carries the application layer ID of the third terminal and / or the application layer ID of the second terminal, the first terminal can first combine the application layer ID of the third terminal and / or the application layer ID of the second terminal to determine at least one of the following: relevant parameters of the first sensing service (such as the type, identifier, sensing mode, etc. of the first sensing range, etc.), relevant parameters of the first sensing content, etc.; and then obtain the first privacy check result based on the first terminal's sensing privacy configuration. In the process of the first terminal obtaining the first privacy check result, the first privacy check result can be obtained based on at least one of the first terminal's sensing privacy configuration, and / or the relevant parameters of the first sensing service, the relevant parameters of the first sensing content, and other content carried by the first sensing request (content other than the application layer ID of the third terminal and the application layer ID of the second terminal). In this example, the specific processing method for the first terminal to obtain the first privacy check result is similar to that in the aforementioned embodiments, and will not be repeated. It should be understood that this is merely an illustrative example; in actual processing, this example does not limit or exhaustively describe how the first terminal specifically uses the application layer ID of the third terminal and / or the application layer ID of the second terminal. In one embodiment, after obtaining the first privacy check result on the first terminal side, the process may further include: if it is determined based on the first privacy check result that the first perceived content should be reported, reporting the first perceived content to the second terminal. The first perceived content may include raw perceived data and / or the perceived result after processing the raw perceived data.

[0160] Specifically, the first terminal may determine whether to report the first sensed content based on the first privacy check result in the following ways: if the first privacy check result indicates that the privacy check has passed, the first terminal has the right to start the first sensed service, the first terminal has the right to report the first sensed content to any device, or the first terminal has the right to report the first sensed content to the second terminal, the first terminal may determine to report the first sensed content (or be able to report the first sensed content) based on the first privacy check result; if the first privacy check result indicates that the privacy check has failed, the first terminal does not have the right to start the first sensed service, or the first terminal does not have the right to report the first sensed content to the second terminal, the first terminal may determine not to report the first sensed content (or be unable to report the first sensed content) based on the first privacy check result.

[0161] In one example, on the first terminal side, if it is determined based on the first privacy check result that the first perceived content should be reported, the first perceived content is reported to the second terminal, including: if it is determined based on the first privacy check result that the first perceived content should be reported, and the first terminal has not saved the first perceived content, measuring the reflected signal of the first perceived service to obtain the first perceived content; and reporting the first perceived content to the second terminal.

[0162] Specifically, the processing of the first terminal may include: if it is determined based on the first privacy check result that the first perceived content should be reported, checking whether the first perceived content is stored locally; if the first perceived content is not stored locally, measuring the reflected signal of the first perceived service to obtain the first perceived content; and reporting the first perceived content to the second terminal.

[0163] The reflected signal of the first sensing service is obtained by the target object reflecting the sensing signal of the first sensing service. The sensing signal of the first sensing service is sent by one of the following: the first terminal, the second terminal, or the third terminal. The specific terminal sending the sensing signal—the first terminal, the second terminal, or the third terminal—can be determined based on the first sensing mode.

[0164] The following describes the processing of the first terminal's perception and acquisition of first-sensory content under different first-sensory modes, divided into three cases:

[0165] In one scenario, the first sensing mode involves the first terminal sending a sensing signal and measuring the reflected signal. The first terminal can determine, based on the first sensing mode, that both the sender and receiver of the sensing signal are itself. The first terminal measures the reflected signal of the first sensing service to obtain the first sensing content, which can be achieved by: the first terminal sending a sensing signal under the first sensing service; and, upon detecting a reflected signal obtained by reflecting the sensing signal through a target object, measuring the reflected signal to obtain the first sensing content.

[0166] In another scenario, the first sensing mode involves the second terminal sending a sensing signal and the first terminal measuring the reflected signal. The first terminal can determine, based on the first sensing mode, that the sender of the sensing signal is the second terminal, and that it is merely a measurer or receiver of the reflected signal. The first terminal measures the reflected signal of the first sensing service to obtain the first sensing content. This can be achieved by the first terminal measuring the reflected signal of the first sensing service obtained by reflecting the sensing signal of the first sensing service sent by the second terminal through the target object, thereby obtaining the first sensing content.

[0167] In another scenario, the first sensing mode involves the third terminal sending a sensing signal and the first terminal measuring the reflected signal. The first terminal can determine, based on the first sensing mode, that the sender of the sensing signal is the third terminal, and that it is merely a measurer or receiver of the reflected signal. The first terminal measures the reflected signal of the first sensing service to obtain the first sensing content. This can be achieved by the first terminal measuring the reflected signal of the first sensing service obtained by reflecting the sensing signal of the first sensing service sent by the third terminal through the target object, thereby obtaining the first sensing content.

[0168] In one example, on the first terminal side, if it is determined based on the first privacy check result that the first perceived content should be reported, the first perceived content is reported to the second terminal, including: if it is determined based on the first privacy check result that the first perceived content should be reported, and the first terminal saves the first perceived content, the first perceived content is reported to the second terminal.

[0169] In this embodiment, since the second terminal has already established a side link between the first terminal and the second terminal before sending the first sensing request, the first terminal reporting the first sensing content to the second terminal includes: reporting the first sensing content to the second terminal through the side link between the first terminal and the second terminal. The processing by the second terminal after sending the first sensing request may include: receiving the first sensing content from the first terminal through the side link between the first terminal and the second terminal. The first sensing content may be carried by a first sensing response (or a first sensing service request response, or a first sensing request response).

[0170] In one embodiment, on the first terminal side, the method may further include: denying service if it is determined, based on the first privacy check result, that the first perceived content will not be reported. Here, if the first terminal denies service, a first perception response instructing the second terminal to refuse reporting the first perceived content may also be sent via a side link.

[0171] In one embodiment, the processing on the second terminal may further include: the second terminal obtaining a second privacy check result based on the first terminal's perceived privacy configuration, wherein the second privacy check result is used to determine whether the first terminal can report the first perceived content.

[0172] The second terminal may have pre-stored the privacy-aware configuration of the first terminal, or the second terminal may also obtain the privacy-aware configuration of the first terminal. The method by which the second terminal obtains the privacy-aware configuration of the first terminal, and the specific description of the privacy-aware configuration of the first terminal, are the same as in the aforementioned embodiments, and will not be repeated here.

[0173] The second privacy check result is used to indicate at least one of the following: whether the privacy check on the second terminal side is passed, whether the first terminal can start the first sensing service, and whether the first terminal can report the first sensing content.

[0174] In one example, the first terminal's awareness privacy configuration is globally configured. In this example, the second terminal may directly obtain the second privacy check result based on the first terminal's awareness privacy configuration. For example, if the first terminal's awareness privacy configuration allows the first terminal to execute all awareness services, then the second terminal can directly perform a privacy check based on the first terminal's awareness privacy configuration to obtain a second privacy check result indicating that the privacy check has passed, the first terminal can start the first awareness service, or the first terminal can report at least one of the first awareness content.

[0175] In one example, the first terminal's perceived privacy configuration is not globally configured.

[0176] This example differs from the processing of the first terminal obtaining the first privacy check result described above in that the processing of the second terminal obtaining the second privacy check result based on the first terminal's perception privacy configuration is executed before the second terminal generates or issues the first perception request. Therefore, the second terminal may obtain the second privacy check result based on the first terminal's perception privacy configuration and at least one of the following: the type of the first perception service, the first perception area, the first perception accuracy, the first perception effective time, the first perception reported content, the first perception mode, the identifier of the first perception service, relevant information about the target object, the identifier of the second terminal, the application layer ID of the third terminal, the application layer ID of the second terminal, the identifier of the first terminal, the application layer ID of the first terminal, etc. Since the substantive descriptions of the type of the first perception service, the first perception area, the first perception accuracy, the first perception effective time, the first perception reported content, the first perception mode, the identifier of the first perception service, relevant information about the target object, the identifier of the second terminal, the application layer ID of the third terminal, the application layer ID of the second terminal, the identifier of the first terminal, the application layer ID of the first terminal, etc., are the same as in the aforementioned embodiments, the specific processing of the second terminal obtaining the second privacy check result is similar to the specific processing of the first terminal obtaining the first privacy check result in the aforementioned embodiments, and will not be repeated.

[0177] When the second privacy check result indicates that the privacy check has passed, the first terminal can start the first sensing service, or the first terminal can report at least one of the first sensing content, the second privacy check result can be used by the second terminal to determine that the first terminal can report the first sensing content; when the second privacy check result indicates that the privacy check has failed, the first terminal cannot start the first sensing service, or the first terminal cannot report at least one of the first sensing content, the second privacy check result can be used by the second terminal to determine that the first terminal cannot report the first sensing content.

[0178] In one example, the processing on the second terminal side may further include: sending a first perception request to the first terminal if it is determined based on the second privacy check result that the first terminal is capable of reporting the first perception content; and / or sending a second perception request to the third terminal if it is determined based on the second privacy check result that the first terminal is capable of reporting the first perception content.

[0179] The first sensing request, the second sensing request, the related explanations for the second terminal sending the first sensing request to the first terminal, and the related explanations for the second terminal sending the second sensing request to the third terminal are all the same as in the previous embodiments and will not be repeated. The second terminal receiving the second sensing request and the subsequent related processing are also the same as in the previous embodiments and will not be described in detail.

[0180] In one scenario, after receiving the first sensing request, the first terminal can still perform processing based on its sensing privacy configuration to obtain the first privacy check result. In this scenario, the sensing privacy configuration of the first terminal can be saved by the first terminal or configured by the second terminal; the processing of the first terminal obtaining the first privacy check result and subsequently reporting the first sensing content is the same as in the aforementioned embodiments, and therefore will not be repeated.

[0181] In one scenario, after receiving the first sensing request, the first terminal may not need to perform the process of obtaining the first privacy check result based on the first terminal's sensing privacy configuration. In this scenario, the first terminal's processing may include one of the following: if the first terminal has not saved the first sensing content, measuring the reflected signal of the first sensing service to obtain the first sensing content, and reporting the first sensing content to the second terminal through the side link between the first terminal and the second terminal; or if the first terminal has saved the first sensing content, reporting the first sensing content to the second terminal through the side link between the first terminal and the second terminal.

[0182] In one example, the processing on the second terminal side may further include: if it is determined based on the second privacy check result that the first terminal cannot report the first perceived content, then not sending the first perceived request to the first terminal. Here, if the second terminal does not send the first perceived request to the first terminal, the second terminal can directly terminate the processing.

[0183] The following, with reference to Figure 4, uses the second terminal as Client UE and the first terminal as UE1 as an example to illustrate the UE privacy check process after the PC5 connection is established, specifically including:

[0184] Step 400a: The Client UE obtains discovery security material from the AMF (i.e., the first network device).

[0185] The security discovery materials can include those of Client UE, UE1, and UE2. Here, if only Client UE has a connection to the network side (AMF), while UE1 and UE2 do not, Client UE can obtain the security discovery materials of Client UE, UE1, and UE2 from the AMF, and then send the security discovery materials of each UE to the corresponding UE through subsequent procedures. Alternatively, if Client UE, UE1, and UE2 all have connections to the network side, each of Client UE, UE1, and UE2 can obtain its own security discovery materials. This example does not limit the method or process by which each device obtains its own security discovery materials.

[0186] Furthermore, according to section 6.3.3 of TS33.533, the discovered security material can enable the authorization of at least one of the client UE, UE1, and UE2 for the perception role. For example, the UE (any one of the client UE, UE1, and UE2) supports the auxiliary perception function in the self-transmitting and self-receiving perception mode, or the UE supports the auxiliary perception function in the signal receiving mode, or the UE supports the auxiliary perception function in the signal transmitting mode.

[0187] In this step, the Client UE has not yet determined the specific perception-related content to be executed. Therefore, this step is mainly a preparatory process for the Client UE to establish PC5 connections with each UE in the future.

[0188] Step 400b (optionally), the Client UE obtains the perceived privacy configuration from the GMLC (or from the GMLC via the AMF).

[0189] For example, according to the scheme described in section 6.3.7 of TS33.533, the Client UE obtains the aware privacy configuration from the GLMC in the SL-MT-LR procedure.

[0190] The perceived privacy configuration may include the perceived privacy configuration of UE1, or it may include the perceived privacy configurations of UE1 and UE2 (and possibly other UEs). In this step, the Client UE has not yet determined the specific content of the perception process to be performed. Therefore, in this step, the Client UE may obtain the perceived privacy configurations of each UE that will be performing the discovery process from the GMLC. Therefore, this is summarized as the Client UE obtaining the perceived privacy configuration from the GMLC. The content that the perceived privacy configuration of any UE may include is the same as in the aforementioned embodiments, and will not be repeated here.

[0191] Optionally, if the Client UE has a sensing function (self-transmission and self-reception), then in this step, the Client UE can also obtain its own sensing privacy configuration.

[0192] Step 401: The Client UE performs the discovery process with UE1 and UE2 respectively.

[0193] In this step, the Client UE has not yet determined the specific perception-related content to be executed. Therefore, this step is mainly a preparatory process for the Client UE to establish PC5 connections with each UE in the future.

[0194] After completing step 401, you can proceed to step 402a or step 402b, depending on the actual situation or configuration.

[0195] In step 402a, Client UE and UE1 establish a PC5 link using the unicast secure link mechanism, and Client UE and UE2 establish a PC5 link using the unicast secure link mechanism.

[0196] In step 402b, Client UE and UE1 establish a PC5 link using the network-assisted secure connection establishment mechanism, and Client UE and UE2 establish a PC5 link using the network-assisted secure connection establishment mechanism.

[0197] Step 403: Based on the discovered roles of the sensing UE, the Client UE selects the first sensing mode.

[0198] In some possible scenarios, step 403 may be performed before step 402a or step 402b. For example, first, step 403 is executed to select a first sensing mode, assuming the first sensing mode includes one of the following: Client UE sends and UE1 receives, UE1 sends and receives on its own, or UE2 sends and UE1 receives. After completing step 403, step 402a is executed, where Client UE and UE1 establish a PC5 link using a unicast secure link mechanism, and Client UE sends its sensing privacy configuration to UE1. Client UE and UE2 also establish a PC5 link using a unicast secure link mechanism. Alternatively, after completing step 403, step 402b is executed, where Client UE and UE1 establish a PC5 link using a network-assisted secure connection establishment mechanism, and Client UE sends its sensing privacy configuration to UE1. Client UE and UE2 also establish a PC5 link using a network-assisted secure connection establishment mechanism.

[0199] In some possible scenarios, step 403 may be performed after step 402a or step 402b. In this case, since the specific content of the first sensing mode is not determined, the sensing privacy configuration of each UE (i.e., UE1 and UE2) currently establishing a PC5 connection can be sent to that UE when step 402a or step 402b is executed. For example, in step 402a, Client UE and UE1 establish a PC5 link using a unicast secure link mechanism, and UE1's sensing privacy configuration is sent to UE1; and Client UE and UE2 establish a PC5 link using a unicast secure link mechanism, and UE2's sensing privacy configuration is sent to UE2; or, in step 402b, Client UE and UE1 establish a PC5 link using a network-assisted secure connection establishment mechanism, and UE1's sensing privacy configuration is sent to UE1; and Client UE and UE2 establish a PC5 link using a network-assisted secure connection establishment mechanism, and UE2's sensing privacy configuration is sent to UE2. Then, step 403 is executed, in which the Client UE selects the first perception mode. In this way, regardless of which first perception mode is selected, both UE1 and UE2 can perform privacy checks when they receive a perception service request.

[0200] If the first sensing mode determined in step 403 includes one of the following: Client UE sends and UE1 receives, UE1 sends and receives on its own, or UE2 sends and UE1 receives, then steps 404 to 407 are executed.

[0201] Step 404: The Client UE sends a first perception service request to UE1. This first perception service request requests UE1 to report the first perception content of the first perception service. The content that the first perception service request may carry is the same as the first perception request in the previous embodiment, and will not be described again. Here, the Client UE sending the first perception service request to UE1 may be as follows: performing a privacy check based on UE1's perception privacy configuration to obtain a second privacy check result; and if it is determined based on the second privacy check result that UE1 can report the first perception content, then sending the first perception service request to UE1. The explanation regarding obtaining the second privacy check result and other related matters is the same as in the previous embodiment, and will not be described again.

[0202] If the first sensing mode is UE2 sending and UE1 receiving, then step 405 may also be included, whereby the Client UE instructs UE2 to send a sensing signal. This step 405 may be executed before or after step 404, or it may be executed simultaneously with step 404. In Figure 4, it is illustrated that step 405 is executed after step 404, but this is not intended to limit the timing of the execution of step 405.

[0203] Step 406: UE1 checks that no first-aware content is stored locally. Based on UE1's awareness privacy configuration, a privacy check is performed to determine whether to start the first-aware service and expose the first-aware content to the Client UE. If the privacy check fails (i.e., it is determined based on the first privacy check result that the first-aware content will not be reported), service is denied. If the privacy check passes (i.e., it is determined based on the first privacy check result that the first-aware content will be reported), UE1 begins to perform awareness, and then proceeds to step 408. The processing of UE1's awareness execution can be related to the first-aware mode, as detailed in the preceding embodiments, and will not be repeated here.

[0204] Step 407: UE1 checks if the first perception content is stored locally. Based on UE1's perception privacy configuration, a privacy check is performed to determine whether to start the first perception service and expose the first perception content to the Client UE. If the privacy check fails, the service is rejected. If the privacy check passes, UE1 does not need to perform perception and directly proceeds to step 408.

[0205] Step 408: UE1 returns a first perception service request response to Client UE through the secure PC5 link. The first perception service request response carries the first perception content.

[0206] In some possible implementations, the first terminal performs a privacy check during the process of establishing a sidelink with the second terminal.

[0207] Before sending the first sensing request to the first terminal, the second terminal may perform the following process: obtain discovery security material from the first network device. The discovery security material is used by the second terminal to discover the first terminal (or the first terminal and one or more other terminals) during the discovery process. The descriptions of the discovery security material and the first network device are the same as in the foregoing embodiments and will not be repeated.

[0208] The processing of the second terminal before sending the first sensing request may further include: determining a first sensing mode based on the auxiliary sensing functions supported by each of the one or more terminals, wherein the one or more terminals include at least one of the following: the first terminal, the second terminal, and the third terminal.

[0209] The second terminal can determine or acquire the auxiliary sensing functions supported by each terminal by discovering the security materials, or it may use other methods to determine or acquire the auxiliary sensing functions supported by each terminal. The methods by which the second terminal determines or acquires the auxiliary sensing functions supported by each terminal by discovering the security materials have been described in detail in the foregoing embodiments and will not be repeated here.

[0210] The method by which the second terminal determines the first sensing mode is the same as in the aforementioned embodiments, and will not be repeated here.

[0211] Only after the second terminal determines the first sensing mode will the second terminal send the first sensing request to the receiving end of the reflected signal (i.e., the first terminal) determined in this instance.

[0212] In one embodiment, the first sensing mode is either the second terminal sending a sensing signal and the first terminal measuring the reflected signal, or the first terminal sending a sensing signal and measuring the reflected signal.

[0213] On the second terminal side, sending a first sensing request to the first terminal includes: sending a first direct communication request to the first terminal, wherein the first direct communication request is used to request the establishment of a side link between the first terminal and the second terminal, and the first direct communication request carries the first sensing request.

[0214] On the first terminal side, receiving the first sensing request from the second terminal includes: receiving the first direct communication request from the second terminal, wherein the first direct communication request is used to request the establishment of a side link between the first terminal and the second terminal, and the first direct communication request carries the first sensing request.

[0215] The content and related descriptions carried by the first perception request are the same as those in the previous embodiments, and will not be repeated.

[0216] The first direct communication request can be a first DCR (Direct Communication Request). In addition to carrying the first sensing request, the first DCR may also carry necessary messages (or necessary content) for establishing secure communication; wherein, the necessary messages or necessary content for establishing secure communication should be the same as the content required to be carried in the DCR as specified in the relevant protocol, and is not limited here.

[0217] In one embodiment, the first sensing mode is that the third terminal sends a sensing signal and the first terminal measures the reflected signal.

[0218] The second terminal needs to send a first DCR to the first terminal to carry a first sensing request. The description of the first DCR is the same as in the previous embodiments, and the content carried by the first sensing request and its related description are the same as in the previous embodiments, so they will not be repeated.

[0219] In this embodiment, the processing of the second terminal may further include: when the first sensing mode is that the third terminal sends a sensing signal and the first terminal measures the reflected signal, sending a second sensing request to the third terminal, wherein the second sensing request is used to instruct the third terminal to send the sensing signal.

[0220] Sending a second sensing request to a third terminal includes sending a second direct communication request to the third terminal. The second direct communication request requests the establishment of a sidelink between the second terminal and the third terminal, and carries the second sensing request. The main difference from the previous embodiment is that in this embodiment, the second terminal and the third terminal have not established a sidelink; therefore, the second sensing request needs to be carried in the second direct communication request. The description of the second direct communication request is similar to that of the first DCR mentioned above and will not be repeated. The description of the second sensing request is the same as that of the previous embodiment and will not be repeated.

[0221] In one embodiment, after receiving a first direct communication request carrying a first perception request, the first terminal can obtain a first privacy check result based on the first terminal's perception privacy configuration.

[0222] Optionally, the privacy-aware configuration of the first terminal may be stored by the first terminal. Alternatively, the privacy-aware configuration of the first terminal may be configured by the second terminal for the first terminal.

[0223] The second terminal may have pre-stored the first terminal's perceived privacy configuration, or the second terminal may also obtain the first terminal's perceived privacy configuration. For example, the second terminal's processing may further include: obtaining the first terminal's perceived privacy configuration. The second terminal may obtain the first terminal's perceived privacy configuration by acquiring it from the first terminal (and / or one or more other terminals) of the second network device through the SL-MT-LR procedure. This sidelink terminal location request process may be executed simultaneously with or after the second terminal obtains the discovered security material from the first network device, or at other times; this embodiment does not limit this.

[0224] The processing of the second terminal may further include: sending the first terminal's perceived privacy configuration to the first terminal. The timing of sending the first terminal's perceived privacy configuration to the first terminal may be during the sending of a first direct communication request; for example, the perceived privacy configuration of the first terminal may be carried in the first direct communication request. Alternatively, the timing of the second terminal sending the first terminal's perceived privacy configuration to the first terminal may be during the execution of a direct authentication and key establishment process, or during the execution of a network-assisted authentication process, where the second terminal sends the first terminal's perceived privacy configuration to the first terminal. As long as the timing of sending the first terminal's perceived privacy configuration to the first terminal is before the first terminal performs a privacy check, it falls within the scope of protection of this embodiment.

[0225] The specific content of the privacy-aware configuration of the first terminal, the specific processing method for obtaining the first privacy check result based on the privacy-aware configuration of the first terminal, the specific content of the first privacy check result, and other related descriptions are all the same as those in the foregoing embodiments and will not be repeated.

[0226] After obtaining the first privacy check result on the first terminal side, the process may further include: if it is determined based on the first privacy check result that the first perceived content should be reported, then reporting the first perceived content to the second terminal.

[0227] In one example, on the first terminal side, if it is determined based on the first privacy check result that the first perceived content should be reported, the first perceived content is reported to the second terminal, including: if it is determined based on the first privacy check result that the first perceived content should be reported, and the first terminal has not saved the first perceived content, measuring the reflected signal of the first perceived service to obtain the first perceived content; and reporting the first perceived content to the second terminal.

[0228] Specifically, when it is determined based on the first privacy check result that the first perceived content should be reported, and the first terminal has not saved the first perceived content, measuring the reflected signal of the first perceived service to obtain the first perceived content includes: when it is determined based on the first privacy check result that the first perceived content should be reported, and the first terminal has not saved the first perceived content, sending a first direct security mode command message to the second terminal, wherein the first direct security mode command message is used to establish a side link with the second terminal; and after the side link between the first terminal and the second terminal is established, measuring the reflected signal of the first perceived service to obtain the first perceived content.

[0229] The processing of the first terminal and the second terminal may also include: the first terminal and the second terminal performing a direct authentication and key establishment procedure; or, the first terminal and the second terminal performing a network-assisted authentication procedure.

[0230] The direct authentication and key establishment process performed by the first terminal and the second terminal can be performed between the first terminal and the second terminal. Through this process, the first terminal and the second terminal can complete authentication (which can be one-way authentication or two-way authentication) and obtain security parameters.

[0231] The first and second terminals perform a network-assisted authentication process, which can be performed by a first core network device (such as AMF) for authentication between the first and second terminals. For example, both the first and second terminals can transmit NAS messages with the first core network device, and the first core network device assists in completing the authentication process. After the first and second terminals perform the network-assisted authentication process, both terminals can obtain security parameters.

[0232] The security parameters can be used to ensure the security of information transmitted between the first terminal and the second terminal through the side link. For example, the security parameters may include a security key or security key pair between the first terminal and the second terminal, etc., and this does not limit or exhaustively list all the possible contents that the security parameters may contain.

[0233] The timing of the execution of the direct authentication and key establishment process by the first terminal and the second terminal, or the execution of the network-assisted authentication process by the first terminal and the second terminal, can be before the first terminal performs a privacy check based on the first terminal's perceived privacy configuration. For example, if the perceived privacy configuration of the first terminal is configured by the second terminal for the first terminal, then during the execution of the direct authentication and key establishment process by the first terminal and the second terminal, or during the execution of the network-assisted authentication process by the first terminal and the second terminal, the second terminal can send the perceived privacy configuration of the first terminal to the first terminal, and then the first terminal performs a privacy check based on the perceived privacy configuration of the first terminal.

[0234] Alternatively, the first terminal and the second terminal may perform the direct authentication and key establishment process, or the first terminal and the second terminal may perform the network-assisted authentication process before sending the first direct security mode command message to the second terminal. For example, if the privacy-aware configuration of the first terminal is stored locally, then as long as the first terminal and the second terminal complete the execution of the direct authentication and key establishment process, or the first terminal and the second terminal complete the execution of the network-assisted authentication process, before sending the first direct security mode command message to the second terminal, it is sufficient.

[0235] The first Direct Security Mode Command message can be a first DSMC (Direct Security Mode Command message) message. Specifically, the function of this first DSMC message can be to establish a secure sidelink (or a secure PC5 link) between the first terminal and the second terminal. The content that this first DSMC message may carry is not limited in this embodiment.

[0236] Establishing a side link between the first terminal and the second terminal can refer to establishing a secure side link (or a secure PC5 link) between them. This embodiment does not limit the method used to determine or ascertain the establishment of the side link between the first terminal and the second terminal.

[0237] On the first terminal side, the reflected signal of the first sensing service is measured to obtain the specific processing of the first sensing content, which may be related to the first sensing mode. The details of the first terminal performing sensing and obtaining the processing of the first sensing content under different first sensing modes are the same as in the previous embodiments, and therefore will not be repeated.

[0238] In this embodiment, the first terminal will only report the first sensed content to the second terminal after the side link is established. Therefore, in this embodiment, the first terminal reporting the first sensed content to the second terminal includes: reporting the first sensed content to the second terminal through the side link between the first terminal and the second terminal.

[0239] After the second terminal sends a first direct communication request to the first terminal, the processing of the second terminal may further include: receiving a first direct security mode command message from the first terminal, wherein the first direct security mode command message is used to establish a side link with the first terminal; and, upon completion of establishing the side link between the first terminal and the second terminal, receiving sensing information of the first sensing service from the first terminal through the side link between the first terminal and the second terminal. The first sensing content may be carried by a first sensing response (or a first sensing service request response, or a first sensing request response).

[0240] In one example, on the first terminal side, if it is determined based on the first privacy check result that the first perceived content should be reported, the first perceived content is reported to the second terminal, including: if it is determined based on the first privacy check result that the first perceived content should be reported, and the first terminal saves the first perceived content, the first perceived content is reported to the second terminal.

[0241] The step of reporting the first perceived content to the second terminal when the first privacy check result determines that the first perceived content should be reported and the first terminal saves the first perceived content includes: when the first privacy check result determines that the first perceived content should be reported and the first terminal saves the perception information of the first perception service, sending a first direct security mode command message to the second terminal, wherein the first direct security mode command message is used to establish a side link with the second terminal; and when the side link between the first terminal and the second terminal is established, reporting the first perceived content to the second terminal through the side link between the first terminal and the second terminal.

[0242] The processing of the first and second terminals may further include: the first and second terminals performing a direct authentication and key establishment process; or, the first and second terminals performing a network-assisted authentication process. The descriptions of the direct authentication and key establishment process, the network-assisted authentication process, and their related execution timing are the same as in the foregoing embodiments and will not be repeated here.

[0243] The first direct security mode command message and the related descriptions for establishing the side link between the first terminal and the second terminal are the same as those in the aforementioned embodiments, so they will not be repeated here.

[0244] The processing of receiving the first perceived content after the second terminal sends the first direct communication request to the first terminal is the same as in the previous embodiments and will not be described again.

[0245] In one example, on the first terminal side, the process may further include: refusing to establish a side link with the second terminal if it is determined, based on the first privacy check result, that the first perceived content will not be reported. Here, if the first terminal refuses to establish a side link with the second terminal, the first terminal may directly terminate the process, or the first terminal may send a response message to the second terminal indicating that the connection side link is refused.

[0246] It should also be noted that the second terminal can also be a terminal with sensing function or capable of performing sensing, that is, the second terminal can also perform a certain sensing service to measure the reflected signal and obtain the sensing content.

[0247] In scenarios involving the second terminal activating its own sensing service (e.g., the second sensing service) to measure reflected signals and obtain sensing content (e.g., the second sensing content), the second terminal may also perform the following processing: perform a privacy check based on the second terminal's sensing privacy configuration to obtain the privacy check result corresponding to the second terminal; if the second terminal determines, based on its own corresponding privacy check result, that it can obtain the second sensing content or execute the second sensing service, it activates the second sensing service to measure reflected signals and obtains the second sensing content.

[0248] The privacy-aware configuration of the second terminal can be stored locally or obtained from the network side. For example, the second terminal can obtain its privacy-aware configuration from the second network device through a side-link terminal location request process.

[0249] Furthermore, the sensing mode used by the second terminal can be called the second sensing mode. If the second sensing mode is self-transmission and self-reception, then the second terminal can also activate the second sensing service, send sensing signals and measure reflected signals to obtain the corresponding second sensing content. If the second sensing mode is that other terminals send sensing signals and the second terminal measures reflected signals, then the second terminal can also send a sensing request (for example, called a third sensing request) to other terminals so that the other terminals send sensing signals, and then the second terminal activates the second sensing service to measure reflected signals and obtain the second sensing content.

[0250] In one embodiment, after obtaining the perceived privacy configuration of the first terminal on the second terminal side, the method may further include: the second terminal obtaining a second privacy check result based on the perceived privacy configuration of the first terminal, wherein the second privacy check result is used to determine whether the first terminal can report the first perceived content.

[0251] The detailed description of the processing related to the second privacy check result obtained by the second terminal, as well as the detailed description of the second privacy check result, are the same as those in the aforementioned implementation method, and therefore will not be repeated.

[0252] In one example, the processing on the second terminal side may further include: sending a first direct communication request to the first terminal if it is determined based on the second privacy check result that the first terminal is capable of reporting the first perceived content, wherein the first direct communication request carries the first perceived request; and / or sending a second direct communication request to the third terminal if it is determined based on the second privacy check result that the first terminal is capable of reporting the first perceived content, wherein the second direct communication request carries the second perceived request.

[0253] The first direct communication request, the first sensing request, the second direct communication request, the second sensing request, the related descriptions of the second terminal sending the first direct communication request to the first terminal, and the related descriptions of the second terminal sending the second direct communication request to the third terminal are all the same as in the previous embodiments and will not be repeated. The second terminal receiving the second direct communication request and the related processing thereafter are also the same as in the previous embodiments and will not be described in detail.

[0254] In one scenario, after receiving the first direct communication request, the first terminal can still perform the privacy-aware configuration based on the first terminal to obtain the first privacy check result. The first terminal obtaining the first privacy check result and subsequent related processing are the same as in the aforementioned embodiments, and therefore will not be repeated.

[0255] In one scenario, after receiving the first direct communication request, the first terminal may not need to perform the process of obtaining the first privacy check result based on the first terminal's perceived privacy configuration. In this scenario, the first terminal's processing may include one of the following: if the first terminal has not saved the first perceived content, sending a first direct security mode command message to the second terminal; if a side link between the first terminal and the second terminal is established, measuring the reflected signal of the first perceived service to obtain the first perceived content; and reporting the first perceived content to the second terminal through the side link between the first terminal and the second terminal; or if the first terminal has saved the first perceived content, sending a first direct security mode command message to the second terminal; and if a side link between the first terminal and the second terminal is established, reporting the first perceived content to the second terminal through the side link between the first terminal and the second terminal.

[0256] In one example, the processing on the second terminal side may further include: if it is determined based on the second privacy check result that the first terminal cannot report the first perceived content, then not sending a first direct communication request to the first terminal. Here, if the second terminal does not send a first direct communication request to the first terminal, it means that there is no need to perform the process of establishing a PC5 connection between the first terminal and the second terminal, and therefore the first perceived content will no longer be obtained.

[0257] The following example, using Figure 5 as a reference and taking the second terminal as Client UE and the first terminal as UE1, illustrates the privacy check process during PC5 connection establishment:

[0258] Steps 500a and 500b to 501 are the same as steps 400a and 400b to 401 in the previous example, and will not be repeated.

[0259] Step 502: Based on the discovered roles of the sensing UEs, the Client UE selects a first sensing mode. Assuming the first sensing mode determined in step 502 includes one of the following: Client UE transmits and UE1 receives, UE1 transmits and receives independently, or UE2 transmits and UE1 receives, then the following steps are executed.

[0260] Step 503: The Client UE sends a first DCR to UE1, carrying a first perception request for UE1 to report first perception content for the first perception service. The descriptions of the first DCR and the first perception request are the same as in the previous embodiments and will not be repeated. Here, the Client UE sending the first DCR to UE1 can be as follows: performing a privacy check based on UE1's perception privacy configuration to obtain a second privacy check result; and, if the second privacy check result determines that UE1 can report first perception content, sending the first DCR to UE1. The descriptions of obtaining the second privacy check result are the same as in the previous embodiments and will not be repeated.

[0261] If the first sensing mode is UE2 transmitting and UE1 receiving, then it may also include step 504, whereby the Client UE instructs UE2 to send a second DCR, which carries a request to instruct UE2 to send a sensing signal. This step 504 may be executed before or after step 503, or it may be executed simultaneously with step 503. In Figure 5, it is illustrated that step 504 is executed after step 503, but this is not intended to limit the timing of the execution of step 504.

[0262] In step 505a, after receiving the first DCR, UE1 performs a direct authentication and key establishment process with the Client UE (as described in section 5.3 of TS 33.536), and sends the UE1's awareness privacy configuration to UE1. If the first awareness mode is UE2 sending and UE1 receiving, then step 505a may also include UE2 receiving the second DCR and performing a direct authentication and key establishment process with the Client UE.

[0263] In step 505b, after receiving the first DCR, UE1 performs a network-assisted authentication procedure with the Client UE (as per section 6.3.3.3 of TS33.503), sending UE1's awareness privacy configuration to UE1. If the first awareness mode is UE2 sending and UE1 receiving, then step 505b may also include UE2 receiving the second DCR and performing a network-assisted authentication procedure with the Client UE.

[0264] Either step 505a or step 505b above can be performed.

[0265] Step 506: UE1 checks that no first-aware content is stored locally. Based on UE1's awareness privacy configuration, a privacy check is performed to determine whether to start the first-aware service and expose the first-aware content to the Client UE. If the privacy check fails, the PC5 connection is refused to be established; if the privacy check passes, step 508a is executed.

[0266] Step 507: UE1 checks if the first perception content is stored locally. Based on UE1's perception privacy configuration, a privacy check is performed to determine whether to start the first perception service and expose the first perception content to the Client UE. If the privacy check fails, the PC5 connection is refused to be established; if the privacy check passes, step 508a is executed.

[0267] In step 508a, UE1 returns a first direct security mode command message to the Client UE. Alternatively, if step 504 is executed, step 508b, in which UE2 returns a second direct security mode command message to the Client UE, can also be executed. The timing of UE2 returning the second direct security mode command message to the Client UE can be any time after step 504. In this example, the return of the second direct security mode command message by UE2 to the Client UE is shown as being executed after step 508a and before step 509.

[0268] Step 509: Client UE establishes a secure PC5 connection with UE1; optionally, Client UE establishes a secure PC5 connection with UE2.

[0269] Step 510: UE1 performs perception to obtain the first perceived content.

[0270] In step 511, UE1 returns a first-awareness service request response to the Client UE via the secure PC5 link. This first-awareness service request response carries the first-awareness content. It should be noted that, for UE1, if UE1 executes step 506 and the privacy check passes, then UE1 needs to execute steps 508a, 509, 510, and 511; if UE1 executes step 507 and the privacy check passes, then UE1 does not need to execute step 510, and UE1 only needs to execute steps 508a, 509, and 511.

[0271] By adopting the above scheme, when the first terminal receives a sensing request from the second terminal to report the first sensing content, it determines whether to report the first sensing content to the second terminal based on the first terminal's sensing privacy configuration. Thus, in a side-link sensing scenario, the terminal that needs to report the sensing content performs a privacy check to determine whether to expose the sensing content to other terminals, thereby achieving privacy protection for the sensing content on the first terminal side and improving data security in side-link sensing scenarios.

[0272] In addition, the above scheme also protects the first terminal from the perception content requested by the second terminal by using local perception privacy configuration to decide whether to expose the perception content it already has to the second terminal, thereby providing more comprehensive privacy protection for data in the perception scenario of the side-link.

[0273] Furthermore, the above scheme considers not only privacy checks after the sidelink is established, but also privacy checks during the sidelink establishment process. In the case of privacy checks during sidelink establishment, in addition to ensuring the security of the sensed content, if it is determined that the first terminal fails the privacy check (i.e., it is determined that the first terminal will not report the first sensed content), the sidelink establishment process can be terminated directly, thereby saving the first terminal's computing resources, processing resources, and energy resources.

[0274] Figure 6 is a schematic diagram of the composition structure of a first terminal according to an embodiment of this application, including:

[0275] The first communication unit 601 is configured to receive a first sensing request from the second terminal, wherein the first sensing request is configured to request the first terminal to report the first sensing content of the first sensing service.

[0276] The first processing unit 602 is used to obtain a first privacy check result based on the privacy-aware configuration of the first terminal, wherein the first privacy check result is used to determine whether to report the first perceived content.

[0277] The first terminal's perception privacy configuration is used to indicate at least one of the following: whether the first terminal is allowed to enable one or more perception services, and the relevant parameters of each of the one or more perception services that are allowed to be enabled.

[0278] Whether the first terminal is allowed to enable one or more sensing services includes at least one of the following: whether the first terminal is allowed to enable one or more sensing services in one or more areas, whether the first terminal is allowed to enable one or more sensing services during one or more time periods, whether the first terminal is allowed to enable one or more types of sensing services, and whether the first terminal is allowed to enable one or more sensing services under one or more events.

[0279] The relevant parameters of each sensing service include at least one of the following: the sensing accuracy of each sensing service, the reported content of each sensing service, the storage method of the sensing content under each sensing service, the transmission method of the sensing content under each sensing service, the access permissions of the sensing content under each sensing service, the processing device of the sensing content obtained by each sensing service, and the storage duration of the sensing content under each sensing service.

[0280] The privacy-aware configuration of the first terminal is either stored by the first terminal or configured by the second terminal.

[0281] The first communication unit is configured to report the first perceived content to the second terminal when it is determined, based on the first privacy check result, that the first perceived content should be reported.

[0282] The first processing unit is configured to measure the reflected signal of the first sensing service to obtain the first sensing content when it is determined based on the first privacy check result that the first sensing content should be reported and the first terminal has not saved the first sensing content.

[0283] The first communication unit is used to report the first sensed content to the second terminal.

[0284] The reflected signal of the first sensing service is obtained by the target object reflecting the sensing signal of the first sensing service, wherein the sensing signal of the first sensing service is sent by one of the following: the first terminal, the second terminal, and the third terminal.

[0285] The first communication unit is configured to report the first perceived content to the second terminal when the first privacy check result determines that the first perceived content should be reported and the first terminal saves the first perceived content.

[0286] The first communication unit is configured to receive a first sensing request from the second terminal via a side link between the first terminal and the second terminal.

[0287] The first communication unit is configured to send a first direct security mode command message to the second terminal when it is determined based on the first privacy check result that the first perceived content should be reported and the first terminal has not saved the first perceived content. The first direct security mode command message is used to establish a side link with the second terminal.

[0288] The first processing unit is configured to measure the reflected signal of the first sensing service to obtain the first sensing content after establishing a side link between the first terminal and the second terminal.

[0289] The first communication unit is used to report the first sensed content to the second terminal via a side link between the first terminal and the second terminal.

[0290] The first communication unit is configured to send a first direct security mode command message to the second terminal when, based on the first privacy check result, it is determined that the first perceived content should be reported and the first terminal stores the perceived information of the first perceived service. The first direct security mode command message is used to establish a side link with the second terminal. After the side link between the first terminal and the second terminal is established, the first perceived content is reported to the second terminal through the side link between the first terminal and the second terminal.

[0291] The first communication unit is configured to receive a first direct communication request from the second terminal, wherein the first direct communication request is configured to request the establishment of a side link between the first terminal and the second terminal, and the first direct communication request carries the first sensing request.

[0292] The first sensing request carries at least one of the following: the type of the first sensing service, the first sensing area, the first sensing accuracy, the first sensing effective time, the first sensing reported content, and the first sensing mode.

[0293] The first sensing mode includes one of the following: the first terminal sends a sensing signal and measures the reflected signal; the second terminal sends a sensing signal and the first terminal measures the reflected signal; the third terminal sends a sensing signal and the first terminal measures the reflected signal.

[0294] Figure 7 is a schematic diagram of the composition structure of a second terminal according to an embodiment of this application, including:

[0295] The second communication unit 701 is used to send a first sensing request to the first terminal, wherein the first sensing request is used to request the first terminal to report the first sensing content of the first sensing service.

[0296] The second communication unit is used to obtain the privacy-aware configuration of the first terminal.

[0297] As shown in Figure 7, the first terminal further includes a second processing unit 702, which is used to obtain a second privacy check result based on the first terminal's perception privacy configuration, wherein the second privacy check result is used to determine whether the first terminal can report the first perception content.

[0298] The second communication unit is used to send the first terminal's privacy-aware configuration to the first terminal.

[0299] The first terminal's perception privacy configuration is used to indicate at least one of the following: whether the first terminal is allowed to enable one or more perception services, and the relevant parameters of each of the one or more perception services that are allowed to be enabled.

[0300] Whether the first terminal is allowed to enable one or more sensing services includes at least one of the following: whether the first terminal is allowed to enable one or more sensing services in one or more areas, whether the first terminal is allowed to enable one or more sensing services during one or more time periods, whether the first terminal is allowed to enable one or more types of sensing services, and whether the first terminal is allowed to enable one or more sensing services under one or more events.

[0301] The relevant parameters of each sensing service include at least one of the following: the sensing accuracy of each sensing service, the reported content of each sensing service, the storage method of the sensing content under each sensing service, the transmission method of the sensing content under each sensing service, the access permissions of the sensing content under each sensing service, the processing device of the sensing content obtained by each sensing service, and the storage duration of the sensing content under each sensing service.

[0302] The first sensing request carries at least one of the following: the type of the first sensing service, the first sensing area, the first sensing accuracy, the first sensing effective time, the first sensing reported content, and the first sensing mode.

[0303] The first sensing mode includes one of the following: the first terminal sends a sensing signal and measures the reflected signal; the second terminal sends a sensing signal and the first terminal measures the reflected signal; the third terminal sends a sensing signal and the first terminal measures the reflected signal.

[0304] The second processing unit is configured to determine the first sensing mode based on the auxiliary sensing functions supported by each of the one or more terminals, wherein the one or more terminals include at least one of the following: the first terminal, the second terminal, and the third terminal.

[0305] The second communication unit is used to send the first sensing request to the first terminal via the side link between the first terminal and the second terminal.

[0306] The second communication unit is used to receive the first sensed content from the first terminal via a side link between the first terminal and the second terminal.

[0307] The second communication unit is configured to send a first direct communication request to the first terminal, wherein the first direct communication request is configured to request the establishment of a side link between the first terminal and the second terminal, and the first direct communication request carries the first sensing request.

[0308] The second communication unit is configured to receive a first direct security mode command message from the first terminal, wherein the first direct security mode command message is used to establish a side link with the first terminal; and, upon completion of establishing the side link between the first terminal and the second terminal, to receive sensing information of the first sensing service from the first terminal through the side link between the first terminal and the second terminal.

[0309] The second communication unit is configured to send a second sensing request to the third terminal when the first sensing mode is that the third terminal sends a sensing signal and the first terminal measures a reflected signal, wherein the second sensing request is used to instruct the third terminal to send the sensing signal.

[0310] The second communication unit is used to send the second sensing request through the side link between the second terminal and the third terminal.

[0311] The second communication unit is used to send a second direct communication request to the third terminal, wherein the second direct communication request is used to request the establishment of a side link between the second terminal and the third terminal, and the second direct communication request carries the second sensing request.

[0312] The device in this application embodiment can realize the corresponding functions of the various devices in the foregoing communication method embodiments. The processes, functions, implementation methods, and beneficial effects of each module (sub-module, unit, or component, etc.) in this device can be found in the corresponding descriptions in the above method embodiments, and will not be repeated here. It should be noted that the functions described for each module (sub-module, unit, or component, etc.) in the device of this application embodiment can be implemented by different modules (sub-modules, units, or components, etc.) or by the same module (sub-module, unit, or component, etc.).

[0313] It should be understood that the sequence number of each process in the various embodiments of this application does not imply the order of execution; the execution order of each process should be determined by its function and internal logic. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. The above descriptions are merely specific embodiments of this application, and the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method executed by a first terminal, comprising: Receive a first perception request from a second terminal, wherein the first perception request is used to request the first terminal to report the first perception content of the first perception service; Based on the privacy-aware configuration of the first terminal, a first privacy check result is obtained, wherein the first privacy check result is used to determine whether to report the first perceived content.

2. The method according to claim 1, wherein, The first terminal's perception privacy configuration is used to indicate at least one of the following: whether the first terminal is allowed to enable one or more perception services, and the relevant parameters of each of the one or more perception services that are allowed to be enabled.

3. The method according to claim 2, wherein, Whether the first terminal is allowed to enable one or more sensing services includes at least one of the following: whether the first terminal is allowed to enable one or more sensing services in one or more areas, whether the first terminal is allowed to enable one or more sensing services during one or more time periods, whether the first terminal is allowed to enable one or more types of sensing services, and whether the first terminal is allowed to enable one or more sensing services under one or more events.

4. The method according to claim 2 or 3, wherein, The relevant parameters of each sensing service include at least one of the following: the sensing accuracy of each sensing service, the reported content of each sensing service, the storage method of the sensing content under each sensing service, the transmission method of the sensing content under each sensing service, the access permissions of the sensing content under each sensing service, the processing device of the sensing content obtained by each sensing service, and the storage duration of the sensing content under each sensing service.

5. The method according to any one of claims 1-4, wherein, The privacy-aware configuration of the first terminal is either stored by the first terminal or configured by the second terminal.

6. The method according to any one of claims 1-5, wherein, The method further includes: If the first perceived content is determined to be reported based on the first privacy check result, the first perceived content is reported to the second terminal.

7. The method according to claim 6, wherein, The step of reporting the first perceived content to the second terminal based on the first privacy check result includes: If, based on the first privacy check result, it is determined that the first perceived content should be reported, and the first terminal has not saved the first perceived content, the reflected signal of the first perceived service is measured to obtain the first perceived content. The first sensed content is reported to the second terminal.

8. The method according to claim 7, wherein, The reflected signal of the first sensing service is obtained by the target object reflecting the sensing signal of the first sensing service, wherein the sensing signal of the first sensing service is sent by one of the following: the first terminal, the second terminal, and the third terminal.

9. The method according to claim 6, wherein, The step of reporting the first perceived content to the second terminal based on the first privacy check result includes: If the first perceived content is determined to be reported based on the first privacy check result, and the first terminal saves the first perceived content, the first perceived content is reported to the second terminal.

10. The method according to any one of claims 1-9, wherein, Receiving the first sensing request from the second terminal includes: The first sensing request is received from the second terminal via the side link between the first terminal and the second terminal.

11. The method according to claim 7 or 8, wherein, The step of measuring the reflected signal of the first sensing service to obtain the first sensing content when the first sensing content is determined to be reported based on the first privacy check result and the first terminal has not saved the first sensing content includes: If, based on the first privacy check result, it is determined that the first perceived content should be reported and the first terminal has not saved the first perceived content, a first direct security mode command message is sent to the second terminal, wherein the first direct security mode command message is used to establish a side link with the second terminal; Once the side link between the first terminal and the second terminal is established, the reflected signal of the first sensing service is measured to obtain the first sensing content.

12. The method according to any one of claims 6-9, 11, wherein, The step of reporting the first sensed content to the second terminal includes: The first sensed content is reported to the second terminal via the side link between the first terminal and the second terminal.

13. The method according to claim 9, wherein, The step of reporting the first perceived content to the second terminal when the first privacy check result determines that the first perceived content should be reported, and the first terminal saves the first perceived content, includes: If the first sensing content is determined to be reported based on the first privacy check result and the first terminal saves the sensing information of the first sensing service, a first direct security mode command message is sent to the second terminal, wherein the first direct security mode command message is used to establish a side link with the second terminal. Once the side link between the first terminal and the second terminal is established, the first sensed content is reported to the second terminal through the side link between the first terminal and the second terminal.

14. The method according to any one of claims 1-9, 11, and 13, wherein, Receiving the first sensing request from the second terminal includes: A first direct communication request is received from the second terminal, wherein the first direct communication request is used to request the establishment of a side link between the first terminal and the second terminal, and the first direct communication request carries the first sensing request.

15. The method according to any one of claims 1-14, wherein, The first sensing request carries at least one of the following: the type of the first sensing service, the first sensing area, the first sensing accuracy, the first sensing effective time, the first sensing reported content, and the first sensing mode.

16. The method according to claim 15, wherein, The first sensing mode includes one of the following: the first terminal sends a sensing signal and measures the reflected signal; the second terminal sends a sensing signal and the first terminal measures the reflected signal; the third terminal sends a sensing signal and the first terminal measures the reflected signal.

17. A communication method executed by a second terminal, comprising: Send a first sensing request to a first terminal, wherein the first sensing request is used to request the first terminal to report the first sensing content of the first sensing service.

18. The method according to claim 17, wherein, The method further includes: Obtain the privacy-aware configuration of the first terminal.

19. The method according to claim 18, wherein, The method further includes: Based on the privacy-aware configuration of the first terminal, a second privacy check result is obtained, wherein the second privacy check result is used to determine whether the first terminal can report the first perceived content.

20. The method according to claim 18 or 19, wherein, The method further includes: Send the privacy-aware configuration of the first terminal to the first terminal.

21. The method according to any one of claims 18-20, wherein, The first terminal's perception privacy configuration is used to indicate at least one of the following: whether the first terminal is allowed to enable one or more perception services, and the relevant parameters of each of the one or more perception services that are allowed to be enabled.

22. The method according to claim 21, wherein, Whether the first terminal is allowed to enable one or more sensing services includes at least one of the following: whether the first terminal is allowed to enable one or more sensing services in one or more areas, whether the first terminal is allowed to enable one or more sensing services during one or more time periods, whether the first terminal is allowed to enable one or more types of sensing services, and whether the first terminal is allowed to enable one or more sensing services under one or more events.

23. The method according to claim 21 or 22, wherein, The relevant parameters of each sensing service include at least one of the following: the sensing accuracy of each sensing service, the reported content of each sensing service, the storage method of the sensing content under each sensing service, the transmission method of the sensing content under each sensing service, the access permissions of the sensing content under each sensing service, the processing device of the sensing content obtained by each sensing service, and the storage duration of the sensing content under each sensing service.

24. The method according to any one of claims 17-23, wherein, The first sensing request carries at least one of the following: the type of the first sensing service, the first sensing area, the first sensing accuracy, the first sensing effective time, the first sensing reported content, and the first sensing mode.

25. The method according to claim 24, wherein, The first sensing mode includes one of the following: the first terminal sends a sensing signal and measures the reflected signal; the second terminal sends a sensing signal and the first terminal measures the reflected signal; the third terminal sends a sensing signal and the first terminal measures the reflected signal.

26. The method of claim 25, wherein, The method further includes: The first sensing mode is determined based on the auxiliary sensing functions supported by each of the one or more terminals, wherein the one or more terminals include at least one of the following: the first terminal, the second terminal, and the third terminal.

27. The method according to any one of claims 17-26, wherein, Sending the first sensing request to the first terminal includes: The first sensing request is sent to the first terminal via the side link between the first terminal and the second terminal.

28. The method according to claim 27, wherein, The method further includes: The first sensed content is received from the first terminal via the side link between the first terminal and the second terminal.

29. The method according to any one of claims 17-26, wherein, Sending the first sensing request to the first terminal includes: A first direct communication request is sent to the first terminal, wherein the first direct communication request is used to request the establishment of a side link between the first terminal and the second terminal, and the first direct communication request carries the first sensing request.

30. The method according to claim 29, wherein, The method further includes: Receive a first direct security mode command message from the first terminal, wherein the first direct security mode command message is used to establish a side link with the first terminal; Once the side link between the first terminal and the second terminal is established, the sensing information of the first sensing service from the first terminal is received through the side link between the first terminal and the second terminal.

31. The method according to claim 25 or 26, wherein, The method further includes: When the first sensing mode is that the third terminal sends a sensing signal and the first terminal measures the reflected signal, a second sensing request is sent to the third terminal, wherein the second sensing request is used to instruct the third terminal to send the sensing signal.

32. The method according to claim 31, wherein, Sending the second sensing request to the third terminal includes: The second sensing request is sent via the side link between the second terminal and the third terminal.

33. The method according to claim 31, wherein, Sending the second sensing request to the third terminal includes: A second direct communication request is sent to the third terminal, wherein the second direct communication request is used to request the establishment of a side link between the second terminal and the third terminal, and the second direct communication request carries the second sensing request.

34. A first terminal, comprising: The first communication unit is configured to receive a first sensing request from the second terminal, wherein the first sensing request is configured to request the first terminal to report the first sensing content of the first sensing service; The first processing unit is configured to obtain a first privacy check result based on the privacy-aware configuration of the first terminal, wherein the first privacy check result is used to determine whether to report the first perceived content.

35. A second terminal, comprising: The second communication unit is used to send a first sensing request to the first terminal, wherein the first sensing request is used to request the first terminal to report the first sensing content of the first sensing service.

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