WO2025098267A1 - Communication method and communication apparatus - Google Patents

Abstract

The present application provides a communication method and a communication apparatus, which can enable a terminal to obtain a sensing result corresponding to the terminal, and can be applied to a communication system. The method comprises: a terminal acquires information used for indicating first sensing devices; the terminal sends a first message to an application server, wherein the first message is used for requesting a sensing result, and the first message comprises the information used for indicating the first sensing devices; and the terminal receives a first sensing result from the application server, wherein the first sensing result is determined on the basis of sensing information of at least some of sensing devices among the first sensing devices.

Description

Communication method and communication device

This application claims the priority of the Chinese patent application filed with the State Intellectual Property Office on November 7, 2023, with application number 202311483069.X and application name “Communication Method and Communication Device”, all contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the field of communication technology, and in particular to a communication method and a communication device.

Background Art

Perception devices, such as sensors, can collect information from the surrounding environment, namely, perception information, which can be used to indicate the state of the environment in which the perception device is located. The perception device can upload the collected perception information to the application server. In the communication system, there may also be a terminal. However, in a scenario where the terminal and the perception device cannot communicate directly, the terminal cannot obtain the perception results related to the perception information collected by the perception device.

Summary of the invention

The embodiments of the present application provide a communication method and a communication device, which enable a terminal to obtain a perception result determined by perception information of at least some of the perception devices indicated by the terminal.

In order to achieve the above objectives, this application adopts the following technical solutions:

In a first aspect, a communication method is provided. The communication method includes: a terminal obtains information indicating a first perception device. The terminal sends a first message to an application server. The first message is used to request a perception result, and the first message includes information indicating the first perception device. The terminal receives a first perception result from the application server, and the first perception result is determined based on perception information of at least some of the first perception devices.

Based on the method provided in the first aspect, the terminal can request a perception result by sending a first message to the application server, wherein the first message includes information for indicating the first perception device, that is, the terminal can indicate the first perception device, based on which the terminal can obtain a perception result determined by the perception information of at least part of the first perception device from the application server, that is, the terminal can obtain a perception result determined according to the perception information of the perception device indicated by the terminal. For example, the terminal can determine the first perception device according to the perception requirement of the terminal and then obtain the perception result, so that the terminal can obtain the perception result corresponding to the perception requirement of the terminal.

In addition, the method provided in the first aspect can reduce the dependence of information-sensing applications on application servers, so that it can be applied to more scenarios.

In a possible design scheme, the terminal obtains information for indicating the first perception device, which may include: the terminal sends information for indicating the second perception device to the application server, and the second perception device corresponds to the perception demand of the terminal. The terminal receives information for indicating the first perception device from the application server, and the first perception device is a perception device in the second perception device that corresponds to the subscription information of the terminal, such as the perception task type subscribed by the terminal to the application server. In this way, the first perception device can be determined based on the perception demand of the terminal and the subscription information of the terminal, such as the perception task type subscribed by the terminal to the application server, thereby reducing the complexity of determining the first perception device.

It should be understood that the second perception device corresponds to the perception requirement of the terminal, or it can be said that the second perception device matches the perception requirement of the terminal. Exemplarily, the second perception device is determined according to the perception requirement of the terminal.

The terminal receives information indicating the first perception device from the application server, which may include: the terminal receives information indicating the first perception device from the application server through the network device.

In a possible design scheme, the terminal obtains information for indicating the first perception device, which may include: the terminal sends information for indicating the second perception device to the application server, and the second perception device corresponds to the perception demand of the terminal. The terminal receives information for indicating the first perception device from the network device, and the first perception device is a perception device in the second perception device that meets the first condition. The first condition includes: (1) corresponding to the terminal's subscription information, such as the type of perception task subscribed by the terminal to the application server; (2) the credibility of the perception device set to which it belongs is greater than or equal to the trust threshold. In this way, when the first perception device is a perception device in the perception device set with a credibility greater than or equal to the trust threshold, the terminal's perception demand, information security and the credibility of the perception information can be taken into account.

Optionally, before the terminal sends information indicating the second perception device to the application server, the method provided in the first aspect may also include: the terminal sends the perception demand of the terminal to the first access network device. The terminal receives information indicating the second perception device from the first access network device. The first access network device serves the terminal. In this way, the terminal can determine the second perception device set through the first access network device.

Optionally, before the terminal sends information for indicating the second sensing device to the application server, the method provided in the first aspect may also: Including: the terminal sends the perception demand of the terminal to the first access network device. The terminal receives information indicating the second perception device from the second access network device through the first access network device. The first access network device serves the terminal, and the second perception device is within the coverage of the second access network device. In this way, when it is determined according to the perception demand that the perception device corresponding to the perception demand is located outside the coverage of the first device and within the coverage of the second access network device, the second perception device can be obtained through the second access network device, thereby improving the success rate of the terminal in obtaining the perception result.

Furthermore, the second perception device is determined according to the perception requirements and identification information of the terminal. The method provided in the first aspect may also include: the terminal sends the identification information of the terminal to the first access network device.

It is understandable that the first perception device may also be determined according to the perception requirements of the terminal.

In a possible design scheme, the first perceptual device may include a set of M perceptual devices, and the information used to indicate the first perceptual device includes: information used to indicate the set of M perceptual devices, where M is a positive integer.

Optionally, the format of the first perception result may include one or more of the following: the first perception result includes M perception results, wherein the mth perception result is a perception result determined according to the perception information of the perception device in the mth perception device set in the M perception device sets, wherein m is a positive integer less than or equal to M. In this way, the specific form of the perception result can be selected according to resources or scenarios, thereby improving flexibility.

In a possible design, the first perception result includes perception information of the first perception device. Alternatively, the first perception result is a perception result determined based on the perception information of the first perception device.

In a possible design scheme, the terminal obtains information for indicating the first perception device, which may include: the terminal sends the perception demand of the terminal to the first access network device. The terminal receives information for indicating the first perception device from the network device. The first perception device corresponds to the perception demand of the terminal, and the credibility of the perception device set to which the first perception device belongs is greater than or equal to the trust threshold. In this way, the perception information generated by the first perception device corresponds to the perception demand of the terminal and to the credibility of the perception device set, so that both the perception demand of the terminal and the credibility of the perception result can be taken into account.

Optionally, the first perception result is determined based on the perception information of at least part of the perception devices in the first perception device, including: the first perception result is determined based on the perception information of a third perception device in the first perception device, the third perception device is the subscription information of the terminal in the first perception device, such as the perception device corresponding to the perception task type subscribed by the terminal to the application server.

Further, the first perceptual device includes a set of M perceptual devices, and the information used to indicate the first perceptual device may include: information used to indicate the set of M perceptual devices, where M is a positive integer.

Optionally, the first perception result includes N perception results, wherein the nth perception result is a perception result determined based on the perception information of the third perception device in the nth first perception device set in the N first perception device sets, wherein N is a positive integer less than or equal to M, n is a positive integer less than or equal to N, and the first perception device set is a perception device set in which the third perception device exists among the M perception device sets. In this way, on the one hand, the perception devices corresponding to the perception task type that the terminal has subscribed to can be screened out to improve security. On the other hand, the specific form of the perception result can be selected according to resources or scenarios to improve flexibility.

Alternatively, optionally, the first perception result includes perception information of a third perception device. Alternatively, the first perception result is a perception result determined based on the perception information of the third perception device.

Furthermore, in a possible design scheme, the first message also includes first information for indicating the format of the perception result requested by the terminal, and the format of the perception result is: the perception result includes the perception information of the perception device; or, the perception result includes a perception result determined by the perception information of the perception device; or, the perception result includes one or more perception results, wherein each perception result is determined by the perception information of a perception device in a set of perception devices.

Optionally, the perception requirement includes at least one of the following: the type of perception task requested by the terminal, or the location requested for perception by the terminal. In this way, the terminal may indicate the format of the first perception result, so that the application server may feedback the perception result according to the format indicated by the terminal, further improving the matching degree between the perception result and the perception requirement of the terminal.

In a possible design solution, the method provided in the first aspect may further include: authenticating the network device, thereby improving security.

In a second aspect, a communication method is provided. The communication method includes: an application server receives a first message from a terminal. The first message is used to request a perception result, and the first message includes information used to indicate a first perception device. The application server sends the first perception result to the terminal, and the first perception result is determined based on perception information of at least some of the first perception devices.

In a possible design scheme, before the application server receives the first message from the terminal, the method provided in the second aspect may further include: the application server receives information from the terminal for indicating a second perception device. The second perception device corresponds to the perception requirement of the terminal. The application server sends information for indicating the first perception device to the terminal, and the first perception device is a perception device in the second perception device corresponding to the perception task type ordered by the terminal from the application server.

In a possible design scheme, before the application server receives the first message from the terminal, the method provided in the second aspect may also include: the application server receives information from the terminal for indicating a second perception device, and the second perception device corresponds to the perception demand of the terminal. Determine a fourth perception device. The fourth perception device is a perception device in the second perception device that corresponds to the subscription information of the terminal, such as a perception device corresponding to the type of perception task ordered by the terminal to the application server. The application server sends information for indicating the fourth perception device to the network device. Among them, the first perception device is at least part of the perception devices in the fourth perception device.

In a possible design scheme, the first perceptual device includes a set of M perceptual devices, and the information used to indicate the first perceptual device includes: information used to indicate the set of M perceptual devices, where M is a positive integer.

Optionally, the first perception result includes M perception results, wherein the mth perception result is a perception result determined based on perception information of a perception device in an mth perception device set in the M perception device sets, wherein m is a positive integer less than or equal to M.

Alternatively, optionally, the format of the first perception result includes one or more of the following: the first perception result includes perception information of the first perception device. Alternatively, the first perception result is a perception result determined according to the perception information of the first perception device.

In a possible design scheme, the first perception result is determined based on the perception information of at least part of the perception devices in the first perception device, which may include: the first perception result is determined based on the perception information of a third perception device in the first perception device. The method provided in the second aspect may also include: the application server determines the third perception device from the first perception device, and the third perception device is the perception device in the first perception device corresponding to the subscription information of the terminal, such as the perception task type subscribed by the terminal to the application server. The first perception result is determined based on the perception information of the third perception device.

In a possible design scheme, the first perceptual device includes a set of M perceptual devices, and the information used to indicate the first perceptual device includes: information used to indicate the set of M perceptual devices, where M is a positive integer.

Optionally, the first perception result includes N perception results, wherein the nth perception result is a perception result determined based on perception information of a third perception device in an nth first perception device set in the N first perception device sets, wherein N is a positive integer less than or equal to M, and n is a positive integer less than or equal to N. The first perception device set is a perception device set in which the third perception device exists among the M perception device sets.

Alternatively, optionally, the format of the first perception result includes one or more of the following: the first perception result includes perception information of the third perception device. Alternatively, the first perception result is a perception result determined according to the perception information of the third perception device.

In a possible design, the first message further includes first information for indicating the format of the perception result requested by the terminal, and the format of the perception result is: the perception result includes the perception information of the perception device; or, the perception result includes a perception result determined by the perception information of the perception device; or, the perception result includes one or more perception results, wherein each perception result is determined by the perception information of a perception device in a set of perception devices. Optionally, the perception requirement may include at least one of the following: the type of perception task requested by the terminal, or the location requested for perception by the terminal.

In a possible design scheme, the first sensing device is determined according to the sensing requirements of the terminal.

Regarding the technical effects of the method provided in the second aspect, reference can be made to the technical effects of the method provided in the first aspect, and no further details will be given here.

In a third aspect, a communication method is provided. The communication method includes: an access network device acquires a perception requirement of a terminal. The access network device determines a second perception device according to the perception requirement of the terminal. The access network device sends information for indicating the second perception device.

In a possible design, the sensing requirement of the terminal includes the sensing task type requested by the terminal, and the second sensing device corresponds to the sensing task type requested by the terminal. And/or, the sensing requirement of the terminal includes the location where the terminal requests to sense, and the second sensing device is located at the location where the terminal requests to sense.

In a possible design scheme, the access network device is a first access network device serving a terminal. The access network device obtains the perception demand of the terminal, which may include: the access network device receives the perception demand from the terminal. The access network device sends information for indicating the second perception device, which may include: the access network device sends information for indicating the second perception device to the terminal or the network device.

In a possible design scheme, the second perception device is located within the coverage of the second access network device, the access network device is the second access network device, and the second access network device is different from the first access network device serving the terminal. The access network device obtains the perception requirements of the terminal, which may include: the access network device receives the perception requirements from the network device. The access network device sends information for indicating the second perception device, which may include: the access network device sends information for indicating the second perception device to the network device.

Optionally, the method provided in the third aspect may further include: the first access network device receives a perception requirement from the terminal. If there is no perception device corresponding to the perception requirement within the coverage of the first access network device, the first access network device sends the perception requirement to the network device.

Furthermore, the method provided in the third aspect may further include: the first access network device receives information indicating the second perception device from the network device. The first access network device sends information indicating the second perception device to the terminal.

Regarding the technical effects of the method provided in the third aspect, reference can be made to the technical effects of the method provided in the first aspect, and no further details will be given here.

In a fourth aspect, a communication method is provided, the communication method comprising: a network device acquires information indicating one or more perception devices, where the one or more perception devices are determined according to a perception requirement of a terminal. The network device sends information indicating a first perception device to the terminal, where the first perception device is at least part of the one or more perception devices.

In a possible design scheme, the method provided in the fourth aspect may also include: the network device divides one or more sensing devices into one or more sensing device sets. The network device determines the trustworthiness of the one or more sensing device sets. The network device determines that a sensing device in the sensing device set whose trustworthiness in the one or more sensing device sets is greater than or equal to a trust threshold is a first sensing device.

In one possible design scheme, the network device obtains information used to indicate one or more perception devices, which may include: the network device receives information used to indicate one or more perception devices from a first access network device, and the first access network device serves the terminal.

In one possible design scheme, the network device obtains information used to indicate one or more perception devices, which may include: the network device receives information used to indicate one or more perception devices from a second access network device, the one or more perception devices are located within the coverage of the second access network device, and the second access network device is different from the first access network device serving the terminal.

In one possible design, one or more sensing devices are determined according to the sensing requirements of the terminal, and the one or more sensing devices correspond to the subscription information of the terminal, such as the type of sensing task subscribed by the terminal to the application server. The network device obtains information indicating the one or more sensing devices, which may include: the network device receives information indicating the one or more sensing devices from the application server.

Optionally, the method provided in the fourth aspect may further include: the network device receives the perception demand of the terminal from the first access network device. The network device sends the perception demand of the terminal to the second access network device. The first access network device serves the terminal, one or more perception devices are located within the coverage of the second access network device, and the second access network device is different from the first access network device.

Furthermore, before the network device sends the perception requirements of the terminal to the second access network device, the method provided in the fourth aspect may also include: the network device determines the second access network device according to the perception requirements of the terminal.

In a possible design scheme, the network device sends information indicating the first perception device to the terminal, which may include: when authentication of the terminal is successful, the network device sends information indicating the first perception device to the terminal.

Regarding the technical effects of the method provided in the fourth aspect, reference can be made to the technical effects of the method provided in the first aspect, and no further details will be given here.

In a fifth aspect, a communication device is provided, which is used to execute the communication method described in any one of the implementation modes of the first aspect to the fourth aspect.

In the present application, the communication device described in the fifth aspect may be a terminal, or an application server, or a network device, or an access network device, or a chip (system) or other parts or components that can be set in the terminal, or the application server, or the network device, or the access network device, or a device that includes the terminal, or the application server, or the network device, or the access network device.

It should be understood that the communication device described in the fifth aspect includes a module, unit, or means corresponding to the communication method described in any one of the first to fourth aspects, and the module, unit, or means can be implemented by hardware, software, or by hardware executing the corresponding software. The hardware or software includes one or more modules or units for performing the functions involved in the above-mentioned communication method.

In a sixth aspect, a communication device is provided, including: a processor, the processor being configured to execute the communication method described in any possible implementation manner in the first aspect to the fourth aspect.

In a possible design solution, the communication device described in the sixth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in the sixth aspect to communicate with other communication devices.

In a possible design scheme, the communication device described in the sixth aspect may also include a memory. The memory may be integrated with the processor or may be separately provided. The memory may be used to store the computer program and/or data involved in the communication method described in any one of the first to fourth aspects.

In the present application, the communication device described in the sixth aspect may be a terminal, or an application server, or a network device, or an access network device, or a chip (system) or other parts or components that can be set in the terminal, or the application server, or the network device, or the access network device, or a device that includes the terminal, or the application server, or the network device, or the access network device.

In a seventh aspect, a communication device is provided, comprising: a processor coupled to a memory, the processor being configured to execute a computer program stored in the memory, so that the communication device executes the communication method described in any possible implementation manner of the first to fourth aspects.

In a possible design solution, the communication device described in the seventh aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in the seventh aspect to communicate with other communication devices.

In the present application, the communication device described in the seventh aspect may be a terminal, an application server, a network device, or an access network device. Or it may be a chip (system) or other parts or components set in the terminal, or application server, or network device, or access network device, or a device including the terminal, or application server, or network device, or access network device.

In an eighth aspect, a communication device is provided, comprising: a processor and a memory; the memory is used to store a computer program, and when the processor executes the computer program, the communication device executes the communication method described in any one of the implementation methods of the first to fourth aspects.

In a possible design solution, the communication device described in the eighth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in the eighth aspect to communicate with other communication devices.

In the present application, the communication device described in the eighth aspect may be a terminal, or an application server, or a network device, or an access network device, or a chip (system) or other parts or components that can be set in the terminal, or the application server, or the network device, or the access network device, or a device that includes the terminal, or the application server, or the network device, or the access network device.

In a ninth aspect, a communication device is provided, comprising: a processor; the processor is used to couple with a memory, and after reading a computer program in the memory, execute a communication method as described in any one of the implementation methods in the first to fourth aspects according to the computer program.

In a possible design scheme, the communication device described in the ninth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in the ninth aspect to communicate with other communication devices.

In the present application, the communication device described in the ninth aspect may be a terminal, or an application server, or a network device, or an access network device, or a chip (system) or other parts or components that can be set in the terminal, or the application server, or the network device, or the access network device, or a device that includes the terminal, or the application server, or the network device, or the access network device.

In a tenth aspect, a processor is provided, wherein the processor is used to execute the communication method described in any possible implementation manner of the first aspect to the fourth aspect.

In an eleventh aspect, a communication system is provided. The communication system includes one or more access network devices and one or more network devices. The access network device can be used to execute the method described in any possible implementation of the third aspect, and the network device can be used to indicate the method described in any possible implementation of the fourth aspect. The network device can be a network element in a core network.

In a possible implementation, the communication system provided in the eleventh aspect may further include an application server, wherein the application server may be used to execute the method described in any possible implementation of the second aspect.

In a twelfth aspect, a computer-readable storage medium is provided, comprising: a computer program or instructions; when the computer program or instructions are executed on a computer, the computer executes the communication method described in any possible implementation manner in the first to fourth aspects.

In a thirteenth aspect, a computer program product is provided, comprising a computer program or instructions, which, when executed on a computer, enables the computer to execute the communication method described in any possible implementation of the first to fourth aspects.

In addition, the technical effects of the communication devices described in the fifth to thirteenth aspects above can refer to the technical effects of the communication methods described in the first to fourth aspects above, and will not be repeated here.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a transaction relationship between nodes provided in an embodiment of the present application;

Figure 2 is a schematic diagram of the relationship between the evaluation domains;

FIG3 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

FIG4 is a flow chart of a communication method according to an embodiment of the present application;

FIG5 is a schematic diagram of a process of determining a set of sensing devices according to a sensing device according to an embodiment of the present application;

FIG6 is a schematic diagram of a sensing device provided in an embodiment of the present application;

FIG. 7 is a schematic diagram of the relationship between the sensing devices provided in an embodiment of the present application;

FIG8 is a second schematic diagram of the relationship between the sensing devices provided in an embodiment of the present application;

FIG9 is a second flow chart of a communication method provided in an embodiment of the present application;

FIG10 is a third flow chart of the communication method provided in an embodiment of the present application;

FIG11 is a fourth flow chart of a communication method provided in an embodiment of the present application;

FIG12 is a flow chart of a communication method according to an embodiment of the present application;

FIG. 13 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.

DETAILED DESCRIPTION

The following first introduces the technologies and technical terms related to the embodiments of the present application.

1. Trust evaluation refers to determining the degree of trust between different nodes, or different sets of nodes (including a set of at least one node) Each node may correspond to a device, such as the sensing device or terminal described below. The degree of trustworthiness may be represented by a trust value. In a possible design, the greater the trust value, the higher the degree of trustworthiness, and the smaller the trust value, the lower the degree of trustworthiness.

Trust assessment methods can include direct trust and indirect trust.

Direct trust is to determine the degree of trust based on direct interaction between two nodes whose trust is to be determined. The degree of trust of direct trust is related to the transaction experience between the two nodes, such as the number of successful transactions or the number of failed transactions. It should be understood that in the embodiment of the present application, the number of successful transactions can be the communication between one node and another node. In this case, the number of successful transactions is the number of successful communications, and the number of failed transactions is the number of failed communications.

It is understandable that the transaction here is communication only for example. In actual implementation, there may be other ways to implement the transaction, which will not be described here.

Indirect trust is based on the recommendation of other nodes that have transactions with both nodes whose trustworthiness is to be determined. The degree of trustworthiness of indirect trust depends on the reputation of the recommending node and the degree of trustworthiness of the recommending node to the recommended node.

As shown in FIG1 , in a system, there are nodes A, B and C. Assuming that nodes A and B directly trade with each other, A and C directly trade with each other, and B and C directly trade with each other, then in FIG1 , the trust evaluation method between nodes A and B can adopt a direct trust method, the trust evaluation method between nodes A and C can adopt a direct trust evaluation method, and the trust evaluation method between nodes B and C can adopt a direct trust evaluation method. In this way, node A can trade with node B indirectly through node C, so the trust evaluation between nodes A and B can also adopt an indirect trust method.

In some possible design schemes, trust assessment may include point-to-point trust assessment, that is, determining the degree of trust between two nodes. Among them, the point-to-point trust assessment can be based on a point-to-point (P2P) trust assessment model of a hybrid network structure (i.e., a network structure with both indirect trust and direct trust). The point-to-point trust assessment model can combine direct trust and indirect trust to complete a comprehensive evaluation of trust, thereby obtaining the degree of trust.

Regarding the implementation principle of the peer-to-peer trust evaluation model, reference may be made to the principle of performing peer-to-peer evaluation in the prior art, which will not be repeated here.

In some other possible design schemes, trust evaluation may refer to evaluating the degree of trust between different node sets, in which case the node set may also be referred to as an evaluation domain. In this case, each node set is taken as a whole, and trust evaluation is performed between two node sets according to the principle of point-to-point evaluation. At this time, the degree of trust between the two node sets is related to the transaction experience between the two node sets, such as the number of successful and failed transactions. Among them, the devices corresponding to the same node set may be devices having at least one of the same attributes. For example, the devices corresponding to the nodes in the same node set may be devices in the same area. It should be understood that the area here may be a physical area, such as a geographical location area, or a logical area, such as a network address range.

As shown in Figure 2, assuming that the nodes participating in the trust assessment include nodes 1 to 18, among which nodes 1 to 9 belong to node set 1, and nodes 10 to 18 belong to node set 2, then the degree of trust between node set 1 and node set 2 can be determined based on the transaction experience between node set 1 and node set 2.

In the above node set to node set (or evaluation domain to evaluation domain) evaluation scheme, multiple nodes in a node set have the same importance, and the nodes in the entire node set are taken as a whole to determine the credibility. Therefore, the differences between nodes in the node set cannot be reflected in the credibility.

The above two schemes for determining the degree of trustworthiness can both obtain the degree of trustworthiness based on all nodes.

Perception devices, such as sensors, can collect information from the surrounding environment, namely, perception information, which can be used to indicate the state of the environment in which the perception device is located. The perception device can upload the collected perception information to the application server. In the communication system, there may also be a terminal. However, in a scenario where the terminal and the perception device cannot communicate directly, the terminal cannot obtain the perception results related to the perception information collected by the perception device.

In addition, after the sensing device collects the sensing information, it can send the sensing information to the server. After receiving the sensing information, the server can store the sensing information, and the application server can also process and apply the sensing information. In the above solution, the application of the sensing information depends on the application server, and the application scenario is limited.

The technical solution in this application will be described below in conjunction with the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as wireless fidelity (WiFi) systems, vehicle to everything (V2X) communication systems, device-to-device (D2D) communication systems, Internet of Vehicles communication systems, 4th generation (4G) mobile communication systems, such as long term evolution (LTE) systems, worldwide interoperability for microwave access (WiMAX) communication systems, fifth generation (5G) mobile communication systems, such as new radio (NR) systems, and future communication systems, such as the sixth generation (6G) mobile communication systems. generation, 6G) mobile communication systems, etc.

The present application will present various aspects, embodiments or features around a system that may include multiple devices, components, modules, etc. It should be understood and appreciated that each system may include additional devices, components, modules, etc., and/or may not include all of the devices, components, modules, etc. discussed in conjunction with the figures. In addition, combinations of these schemes may also be used.

In addition, in the embodiments of the present application, words such as "exemplarily" and "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "exemplary" is intended to present concepts in a concrete way.

In the embodiments of the present application, "information", "signal", "message", "channel" and "signaling" may be used interchangeably. It should be noted that when the distinction between them is not emphasized, the meanings they intend to express are consistent. "of", "corresponding, relevant" and "corresponding" may be used interchangeably. It should be noted that when the distinction between them is not emphasized, the meanings they intend to express are consistent.

In the embodiments of the present application, sometimes a subscript such as W1 may be mistakenly written as a non-subscript such as W1. When the difference is not emphasized, the meanings to be expressed are consistent.

The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can appreciate that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

To facilitate understanding of the embodiments of the present application, a communication system applicable to the embodiments of the present application is first described in detail using the communication system shown in Figure 3 as an example. For example, Figure 3 is a schematic diagram of the architecture of a communication system applicable to the communication method provided in the embodiments of the present application.

As shown in Figure 3, the communication system includes at least one access network device (such as one or more access network devices among access network devices 301a to access network devices 301c), terminals (such as terminal 302a and terminal 302b), perception devices (such as perception devices 303a to 303c), network devices 304 and application servers 305.

Among them, the terminal (such as terminal 302a and terminal 302b) can be connected to the access network device (such as one or more access network devices in access network device 301a to access network device 301c), the access network device (such as one or more access network devices in access network device 301a to access network device 301c) can be connected to the network device 304, and the network device 304 can be connected to the application server 305. The perception device (such as perception devices 303a to 303b) can be connected to the access network device (such as one or more access network devices in access network device 301a to access network device 301c). The perception device (such as perception devices 303a to 303c) can also be connected to the application server 305.

It should be understood that the terminal (such as the terminal 302a and the terminal 302b) can be connected to the network device 304 through the access network device (such as one or more access network devices among the access network devices 301a to 301c), and the terminal (such as the terminal 302a and the terminal 302b) can be connected to the application server 305 through the access network device (such as one or more access network devices among the access network devices 301a to 301c) and the network device 304. The perception device (such as the perception device 303a to 303c) can be connected to the application server 305 through the access network device (such as one or more access network devices among the access network devices 301a to 301c) and the network device 304.

The terminal may be one or more, such as a first terminal, a second terminal, a third terminal, etc. The terminal may be a terminal with transceiver functions, or may be a chip or chip system provided in the terminal. The terminal may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station (MS), mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal in the embodiments of the present application can be a mobile phone, a cellular phone, a smart phone, a tablet computer, a wireless data card, a personal digital assistant (PDA) computer, a wireless modem, a handset, a laptop computer, a machine type communication (MTC) terminal, a computer with a wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a smart home device (for example, a refrigerator, a television, an air conditioner, an electric meter, etc.), an intelligent robot, a robotic arm, a workshop equipment, a wireless terminal in unmanned driving, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a vehicle-mounted terminal, a roadside unit with a terminal function, and a wireless terminal in a smart city. unit, RSU), etc., flying equipment (for example, intelligent robots, hot air balloons, drones, airplanes), etc. The terminal of the present application may also be an on-board module, on-board module, on-board component, on-board chip or on-board unit that is built into the vehicle as one or more components or units. The terminal may also be other devices with terminal functions. For example, the terminal may also be a device that serves as a terminal function in D2D communication. The embodiments of the present application do not limit the device form of the terminal. The device for realizing the function of the terminal may be a terminal device; it may also be a device that can support the terminal to realize the function, such as a chip system. The device may be installed in the terminal. In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices.

There may be multiple access network devices, such as access network device #1, access network device #2, access network device #3, etc. The access network device may be a device with wireless transceiver functions, or may be a chip or chip system provided on the device, located in the access network (AN) of the communication system, to provide access services to the terminal. For example, the access network device may be called a radio access network (RAN) device, and may specifically be an access network device of the next generation mobile communication system, such as 6G, such as a 6G base station, or in the next generation mobile communication system, the access network device may also have other naming methods, which are all covered within the protection scope of the embodiments of the present application, and the present application does not make any limitation on this. Alternatively, the access network device may also include 5G, such as a gNB in a new radio (NR) system, or one or a group of antenna panels (including multiple antenna panels) of a base station in 5G, or a network node constituting a gNB, a transmission point (TRP or transmission point, TP) or a transmission measurement function (TMF), such as a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), an RSU with base station function, or a wired access gateway, or a core network element of 5G, etc. Alternatively, the access network device may also include: an access point (AP) in a wireless fidelity (WiFi) system, a wireless relay node, a wireless backhaul node, various forms of macro base stations, micro base stations (also called small stations), relay stations, access points, wearable devices, vehicle-mounted devices, etc. Among them, CU and DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH). It can be understood that the access network device can be a CU node, a DU node, or a device including a CU node and a DU node. In addition, CU can be divided into an access network device in an access network RAN, and CU can also be divided into an access network device in a core network CN, which is not limited here. In different systems, CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For the convenience of description, CU, CU-CP, CU-UP, DU and RU are used as examples for description in this application. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. In the embodiment of the present application, the form of the access network device is not limited. The device for implementing the function of the access network device may be an access network device; it may also be a device that can support the access network device to implement the function, such as a chip system. The device can be installed in the access network device or used in combination with the access network device.

The network device may include at least one network element in a core network, which will not be described in detail here.

The perception device may be a module having a data acquisition function or a device including the module. For example, the perception device may be a sensor, or the perception device may be a terminal having the function of a perception device. For example, the perception device may be a device that can be used to collect video or graphic data, or a laser radar (light detection and ranging, LiDAR) device, or a sonar device.

It should be noted that the communication method provided in the embodiment of the present application can be applicable between the nodes shown in Figure 3. The specific implementation can refer to the following method embodiment, which will not be repeated here.

It should be pointed out that the solutions in the embodiments of the present application can also be applied to other communication systems, and the corresponding names can also be replaced by the names of corresponding functions in other communication systems.

It should be understood that FIG3 is only a simplified schematic diagram for ease of understanding, and the communication system may also include other network devices and/or other terminals, which are not shown in FIG3 .

The communication method provided in the embodiment of the present application will be described in detail below in conjunction with Figures 4 to 12.

Exemplarily, Fig. 4 is a flow chart of a communication method according to an embodiment of the present application. The communication method can be applied to the communication between the nodes shown in Fig. 3 .

As shown in FIG4 , the communication method includes the following steps:

S401: The terminal obtains information indicating a first sensing device.

In a possible design, the first sensing device is determined according to the sensing requirement of the terminal. That is, the first sensing device is a sensing device that meets the sensing requirement of the terminal. In this case, the implementation principle of S401 can refer to the relevant introduction of the following design 1 and design 2.

Optionally, the sensing requirement of the terminal may include at least one of the following: a sensing task type (STT) requested by the terminal, or a location at which the terminal requests sensing.

The sensing task type requested by the terminal is the type of the sensing task requested by the terminal. The sensing task type requested by the terminal may be one or more.

A perception task is a task for obtaining perception information. A perception task can obtain one or more types of perception information. In other words, a perception task type can correspond to one or more types of perception information. For example, if the perception task type requested by the terminal is a weather service, then the perception information corresponding to the perception task type can be temperature or humidity. For another example, if the perception task type requested by the terminal is a weather service, then the perception information corresponding to the perception task type can include temperature and humidity.

The location requested by the terminal for sensing refers to the location of a sensing device used to collect the sensing information requested by the terminal.

The location that the terminal requests to sense can be a physical location, such as a geographical location or a spatial location, or a logical location, such as a local area network, which will not be described in detail here. It should be understood that the location that the terminal requests to sense can be one or more locations, or each location that the terminal requests to sense can correspond to an area.

In some possible design schemes, the location that the terminal requests to sense can be determined based on the location of the terminal. Optionally, there is a preset correspondence between the location that the terminal requests to sense and the location of the terminal. For example, the location that the terminal requests to sense is: a location whose distance from the location of the terminal is less than or equal to a distance threshold. For example, in some scenarios, the distance threshold may be 1 kilometer. The distance threshold here is only used as an example. In actual implementation, the distance threshold may be determined based on a specific scenario, which will not be described in detail here.

In one possible design, the first sensing device is determined based on the sensing requirements of the terminal and one or more of the following: subscription information of the terminal, or the credibility of the set of sensing devices.

The subscription information of the terminal may include the type of perception task subscribed by the terminal. Optionally, the subscription information of the terminal may also include the effective time of the perception task subscribed by the terminal, that is, the time when the terminal can obtain the perception information corresponding to the type of perception task subscribed by the terminal. The subscription information listed here is only for example. In actual implementation, the subscription information may also include other possible information, which will not be repeated here.

Example 1: The first perception device is determined based on the perception needs of the terminal and the ordering information of the terminal. That is to say, the first perception device is a perception device that meets the perception needs of the terminal and corresponds to the ordering information of the terminal. For example, if the ordering letter includes the perception task type, the first perception device is a perception device that meets the perception needs of the terminal and corresponds to the perception task type that the terminal has ordered. In this case, the implementation principle of S401 can refer to the relevant introduction of Design 3 below. It should be understood that if the ordering information also includes the effective time of the perception task ordered by the terminal, then, when the time when S401 is executed is within the effective time of the perception task ordered by the terminal, the first perception device is a perception device that meets the perception needs of the terminal and corresponds to the perception task type that the terminal has ordered.

Example 2: The first perception device corresponds to the perception requirement of the terminal, and the degree of trust of the perception device set to which the first perception device belongs is greater than or equal to the trust threshold. In this case, different perception devices in the first perception device belong to different perception device sets, and the degree of trust of these perception device sets is greater than or equal to the trust threshold. In this case, the implementation principle of S401 can refer to the relevant introduction of Design 4 below. It can be understood that the first trust threshold can be determined according to the application scenario, which will not be repeated here.

Example 3: The first sensing device is determined according to the sensing requirement of the terminal, the ordering information of the terminal and the credibility of the set of sensing devices. In this case, the implementation principle of S401 can refer to the relevant introduction of the following design 5.

In a possible design, the first sensing device may include M sensing device sets, and information for indicating the first sensing device includes: information for indicating the M sensing device sets, that is, the information for indicating the first sensing device indicates the first sensing device by indicating the M sensing device sets. M is a positive integer. It should be understood that each of the M sensing device sets includes at least one sensing device, and the sensing devices in different sensing device sets are different, that is, the M sensing device sets are obtained by dividing the first sensing device.

It is understandable that in some possible design schemes, the first perception device can be determined based on the perception needs of the terminal, the ordering information of the terminal, and the credibility of the perception devices in the first perception device. Alternatively, the first perception device can be determined based on the perception needs of the terminal and the credibility of the perception devices in the first perception device. At this time, the principle of obtaining the first perception device is similar to the corresponding schemes in the above-mentioned Designs 1 to 5, the difference being that the credibility of the perception device set in the above-mentioned Designs 1 to 5 is replaced by the credibility of the perception device, and the network device does not need to determine one or more perception device sets.

S402: The terminal sends a first message to the application server. Correspondingly, the application server receives the first message from the terminal.

The first message is used to request a perception result, and the first message includes information for indicating a first perception device.

It is understandable that the first message may also be referred to as a service request message or a service request. The service request message or service request is only used as an example. In actual implementation, the first message may also be called other names, which will not be described here.

Optionally, the first message may be carried in control plane signaling.

S403: The application server sends the first perception result to the terminal. Correspondingly, the terminal receives the first perception result from the application server.

The first perception result is determined based on perception information of at least some of the first perception devices.

Optionally, the first perception result is determined based on the perception information of all the perception devices in the first perception device. Alternatively, the first perception result is determined based on the perception information of some of the perception devices in the first perception device.

For ease of understanding, the format of the first perception result is explained below in conjunction with the first perception device including a set of M perception devices.

In a possible design scheme, the format of the first perception result may include one or more of the following formats 1 to 3.

Format 1: The first perception result includes the perception information of the first perception device. For example, the first perception device includes perception device 1 to perception device P, then the first perception result may include the perception information of any multiple perception devices from perception device 1 to perception device P.

Format 2: The first perception result is a perception result determined based on the perception information of the first perception device. For example, the first perception device includes perception devices 1 to P, and the first perception result may include a perception result determined based on the perception information of any multiple perception devices from perception devices 1 to P.

Format 3, the first perception result includes M perception results, wherein the mth perception result is a perception result determined based on the perception information of the perception device in the mth perception device set in the M perception device sets, wherein m is a positive integer less than or equal to M.

For example, the first perception device includes perception device set 1 to perception device set 3, perception device set 1 includes perception devices 1 to perception device 3, perception device set 2 includes perception device 4 and perception device 5, and perception device set 3 includes perception devices 6 to perception device 10. Then, the first perception result includes the perception result determined based on the perception information of at least one perception device among perception devices 1 to perception devices 3, the perception result determined based on the perception information of at least one perception device among perception devices 4 and perception devices 5, and the perception result determined based on the perception information of at least one perception device among perception devices 6 to perception devices 10.

In this way, the specific form of the perception result can be selected according to the resources or scenarios, which improves flexibility.

In a possible design scheme, the first perception result is determined based on the perception information of at least part of the perception devices in the first perception device, including: the first perception result is determined based on the perception information of a third perception device in the first perception device, and the third perception device is a perception device in the first perception device corresponding to the perception task type subscribed by the terminal to the application server.

It is understandable that the third perception device can also be determined in combination with other information in the terminal's subscription information, such as the effective time of the perception task type subscribed by the terminal. The third perception device may include all perception devices in the first perception device, or may include some perception devices in the first perception device. For the determination principle of the third perception device, please refer to the relevant introduction of Design 6 below, which will not be repeated here. In this case, the format of the first perception result may include one or more of Formats 4 to 6.

Format 4: the first perception result includes perception information of the third perception device.

For the implementation principle of format 4, please refer to the relevant introduction of format 1 above, which will not be repeated here.

Format 5: The first perception result is a perception result determined based on the perception information of the third perception device.

For the implementation principle of format 6, please refer to the relevant introduction of format 2 above, which will not be repeated here.

Format 6, the first perception result includes N perception results, wherein the nth perception result is a perception result determined based on the perception information of the third perception device in the nth first perception device set in the N first perception device sets, wherein N is a positive integer less than or equal to M, n is a positive integer less than or equal to N, and the first perception device set is a perception device set in which the third perception device exists among the M perception device sets.

For the implementation principle of format 6, please refer to the relevant introduction of format 3 above, which will not be repeated here.

In this way, on the one hand, the sensing devices corresponding to the sensing task types ordered by the terminal can be screened out to improve security. On the other hand, the specific form of the sensing results can be selected according to resources or scenarios to improve flexibility.

The above formats 1 and 4 can also be said that the first perception result is fed back with the perception device as the granularity. The above formats 2 and 5 can also be said that the first perception result is fed back with all perception devices as the granularity. The above formats 3 and 6 can also be said that the first perception result is fed back with the perception device set as the granularity.

Optionally, in an embodiment of the present application, the first message also includes first information for indicating the format of the perception result requested by the terminal, and the format of the perception result is: the perception result includes the perception information of the perception device; or, the perception result includes a perception result determined by the perception information of the perception device; or, the perception result includes one or more perception results, wherein each perception result is determined by the perception information of a perception device in a set of perception devices. In this way, the format of the first perception result can be indicated by the terminal, so that the application server can feedback the perception result according to the format indicated by the terminal, further improving the matching degree between the perception result and the perception demand of the terminal.

It is understandable that the first perception result can be carried in the message exchanged between the application server and the terminal, such as the service authorization message, which can also be called service authorization. It is understandable that the authorization service message here is only used as an example. In actual implementation, the message carrying the first perception result can also be other possible messages, which will not be repeated here.

Optionally, in S403, the first perception result may be carried in control plane signaling.

The following uses different scenarios as examples to illustrate the process related to S401.

Design 1

The first sensing device is determined according to the sensing requirement of the terminal, and there is a sensing device corresponding to the sensing requirement of the terminal within the coverage of the first access network device. In this case, the method provided in FIG4 may include the following steps 4.11 to 4.14.

The first access network device is an access network device that provides services for the terminal, and may be the access network device in FIG. 3 , such as any one of the access network devices 301 a to 301 c in FIG. 3 .

Step 4.11, the terminal obtains the perception requirements of the terminal.

For example, the terminal may receive the perception needs of the terminal from other electronic devices, such as the terminal. Alternatively, the perception needs of the terminal may be input to the terminal by the user from the human-computer interaction interface of the terminal. It is understandable that the terminal may also obtain the perception needs of the terminal in other possible ways, which will not be repeated here.

Step 4.12: The terminal sends the perception requirement of the terminal to the first access network device. Correspondingly, the first access network device receives the perception requirement of the terminal. For example, the terminal sends information indicating the perception requirement of the terminal to the first access network device.

It is understandable that in step 4.12, the terminal identification may also be sent together with the terminal's perception needs. That is, step 4.12 may also include: the terminal sends the terminal identification information to the first access network device. Correspondingly, the first access network device receives the terminal identification information. Among them, the terminal identification information may be information used to indicate the terminal, such as the terminal identification. The terminal identification may be the terminal's identity (identity, ID), or a user permanent identifier (subscription permanent identifier, SUPI), or an international mobile subscriber identification number (international mobile subscriber identification number, IMSI).

In step 4.12, the sensing requirement of the terminal may be carried in a message between the terminal and the first access network device, such as sent in a control plane signaling, for example, the sensing requirement of the terminal may be carried in a first sensing request message. Here, the first sensing request message is only used as an example. In actual implementation, the first sensing request message may also have other possible names, which will not be repeated here.

Step 4.13: When there is a perception device corresponding to the perception requirement of the terminal within the coverage of the first access network device, the first access network device determines a second perception device according to the perception requirement of the terminal.

When the position of the perception device within the coverage of the first access network device and/or the perception task type corresponding to the perception information collected by the perception device corresponds to the perception demand of the terminal, a perception device corresponding to the perception demand of the terminal exists within the coverage of the first access network device.

For example, if the perception requirement of the terminal includes the type of perception task requested by the terminal, and the type of perception task corresponding to the perception information collected by the perception device in the first access network device is the same as the type of perception task requested by the terminal, then there is a perception device corresponding to the perception requirement of the terminal within the coverage of the first access network device. Among them, the second perception device is the perception device corresponding to the perception requirement of the terminal.

The following example illustrates the principle of the first access network device determining the second sensing device in combination with the sensing requirements.

In one possible design scheme, the second perception device can be determined according to the type of perception task requested by the terminal. In this case, the perception device that can collect the perception information corresponding to the type of perception task requested by the terminal is the second perception device. For example, the type of perception task requested by the terminal is weather service, and the perception information corresponding to the weather service includes temperature and humidity. Then, the perception device that can collect temperature or humidity is the second perception device. For another example, if the type of perception task requested by the terminal is temperature, then a sensor that can collect temperature (such as a temperature sensor) is the second perception device. For another example, if the type of perception task requested by the terminal is pressure, then a sensor that can collect pressure, such as a pressure sensor, is the second perception device.

In a possible design, the second sensing device may be determined according to the location where the terminal requests to sense. In this case, the second sensing device may be a sensing device located at the location where the terminal requests to sense. For example, if the location where the terminal requests to sense is one or more areas, then the second sensing device is a sensing device located in the one or more areas.

For another example, the location requested by the terminal for perception may be an area whose distance from the terminal is less than or equal to the first distance threshold. In this case, the second perception device may be a perception device in the environment where the terminal is located whose distance from the terminal is less than or equal to the first distance threshold. For another example, the second perception device may be a perception device located in the same local area network as the terminal. For another example, there is a corresponding relationship between the location requested by the terminal for perception and the geographical area, and the second perception device may include a perception device in the geographical area corresponding to the location requested by the terminal for perception.

It should be understood that the second sensing device can also be determined according to the location requested by the terminal for sensing and the type of sensing task requested by the terminal. In this case, the implementation principle can refer to the relevant introduction of determining the second sensing device according to the type of sensing task requested by the terminal and the relevant introduction of determining the second sensing device according to the location requested by the terminal for sensing, which will not be repeated here. Among them, the second sensing device is a sensing device corresponding to both the sensing task requested by the terminal and the location requested by the terminal for sensing.

In a possible design, step 4.12 includes: when the terminal sends the identification information of the terminal to the first access network device, the second perception device is determined according to the identification information of the terminal and the needs of the terminal. For example, the first access network device can determine the location of the terminal according to the identification of the terminal, and then determine the location requested by the terminal for perception according to the location of the terminal, and then determine the second perception device based on the location requested by the terminal for perception and the perception needs of the terminal. In this case, the perception needs of the terminal may include the type of perception task requested by the terminal.

The principle for determining the second sensing device in the embodiment of the present application is only used as an example. In actual implementation, other possible methods may also be used to determine the second sensing device, which will not be described in detail here.

Step 4.14: The first access network device sends information indicating the second sensing device to the terminal. Correspondingly, the terminal receives the information indicating the second sensing device from the first access network device.

The information used to indicate the second perceptual device may indicate the second perceptual device by indicating the identifier of each perceptual device in the second perceptual device. For example, the information used to indicate the second perceptual device includes the identifier of each perceptual device in the second perceptual device.

In step 4.14, the information for indicating the second sensing device may be carried in a message between the first access network device and the terminal, such as in control plane signaling. For example, in step 4.12, when the sensing requirement of the terminal is carried in the first sensing request message, the information for indicating the second sensing device may be carried in the first sensing response message. Here, the first sensing response message is only used as an example. In actual implementation, the first sensing response message may also have other possible names, which will not be repeated here.

In this design, the first perception device may be the second perception device, and S401 may include the terminal sending the perception requirement of the terminal to the first access network device in step 4.12, and the terminal receiving information from the first access network device for indicating the second perception device in step 4.14. The information for indicating the second perception device is the information for indicating the first perception device.

Design 2

The first sensing device is determined according to the sensing requirement of the terminal, and there is no sensing device corresponding to the sensing requirement of the terminal within the coverage of the first access network device. In this case, the method provided in FIG4 may include the following steps 4.21 to 4.28.

Step 4.21, the terminal obtains the perception requirements of the terminal.

For the implementation principle of step 4.21, please refer to the relevant introduction of step 4.11 in design 1, which will not be repeated here.

Step 4.22: The terminal sends the sensing requirement of the terminal to the first access network device. Correspondingly, the first access network device receives the sensing requirement of the terminal.

For the implementation principle of step 4.22, please refer to the relevant introduction of step 4.12 in Design 1, which will not be repeated here.

Step 4.23: If there is no sensing device corresponding to the sensing requirement of the terminal within the coverage of the first access network device, the first access network device sends the sensing requirement of the terminal to the network device. Correspondingly, the network device receives the sensing requirement from the first access network device.

For example, if the perception requirement of the terminal includes a location requested by the terminal for perception, and the location requested by the perception device does not exist within the coverage of the first access network device, and/or if the perception requirement of the terminal includes a perception task type requested by the terminal, and there is no perception task type of the perception information collected by the perception device that corresponds to the perception task type of the terminal, then there is no perception device corresponding to the perception requirement of the terminal within the coverage of the first access network device.

For example, if the perception requirements of the terminal include the perception task type requested by the terminal, and the perception task type corresponding to the perception information collected by the perception device in the first access network device is different from the perception task type requested by the terminal, then there is no perception device corresponding to the perception requirement of the terminal within the coverage range of the first access network device.

In step 4.23, the terminal's perception requirement can be carried in a message between the first access network device and the network device, such as sent in a control plane signaling, such as the terminal's perception requirement can be carried in a first perception request message. Here, the first perception request message is only used as an example. In actual implementation, it can also be other possible messages or message names, which will not be repeated here.

In step 4.23, the terminal identification information may also be sent together with the terminal's perception requirement. That is, step 4.23 may also include: the terminal sends the terminal identification to the first access network device. Correspondingly, the first access network device receives the terminal identification.

Step 4.24: The network device determines a second access network device.

The second access network device is an access network device that is a perception device corresponding to the perception demand of the terminal within the coverage area. The second access network device may be a device other than the first access network device in Figure 3 above. For example, if the first access network device is the access network device 301a in Figure 3, then the second access network device may be the access network device 301b or the access network device 301c in Figure 3. In an embodiment of the present application, the network device may obtain the coverage of the network devices connected to the network device, as well as the perception devices within the coverage of each of these access network devices, and the perception task type corresponding to the perception devices within the coverage of each access network device.

Assume that the perception devices corresponding to the terminal's perception needs include perception devices located at positions 1 to 3, and the corresponding perception task type is perception task type 1. If the access network devices connected to the network device include access network devices 1 to access network devices 3, and the coverage range of access network device 3 includes perception devices located at positions 1 to 3, and the corresponding perception task type is perception task type 1, then access network device 3 is the second access network device.

Step 4.25: The network device sends the perception requirement of the terminal to the second access network device. Correspondingly, the second access network device receives the perception requirement of the terminal.

In step 4.25, the terminal's perception requirement can be carried in a message between the network device and the second access network device, such as sent in a control plane signaling. The terminal's perception requirement can be carried in the above-mentioned first perception request message. Here, the first perception request message is only used as an example. In actual implementation, it can also be other possible messages or message names, which will not be repeated here.

In step 4.25, the terminal identification may also be sent together with the terminal's perception requirement. That is, step 4.25 may also include: the network device sends the terminal identification to the second access network device. Correspondingly, the second access network device receives the terminal identification.

Step 4.26: The second access network device determines the second perception device according to the perception requirements of the terminal.

For the implementation principle of step 4.26, please refer to the relevant introduction in step 4.13, which will not be repeated here.

Step 4.27: The second access network device sends information indicating the second perception device to the network device. Correspondingly, the network device receives the information indicating the second perception device from the network device.

Among them, the implementation principle of the information used to indicate the second sensing device can refer to the relevant introduction in step 4.14.

In step 4.27, the information for indicating the second perception device may be carried in a message between the second access network device and the network device, such as in a control plane signaling. For example, in step 4.23, when the perception requirement of the terminal is carried in the first perception request message, the information for indicating the second perception device may be carried in the first perception response message. Here, the first perception response message is only used as an example. In actual implementation, the first perception response message may also be other possible names, which will not be repeated here.

Step 4.28: The network device sends information indicating the second sensing device to the terminal. Correspondingly, the terminal receives the information indicating the second sensing device from the network device.

It should be understood that step 4.28 includes: the network device sends information indicating the second perception device to the terminal through the first access network device. Correspondingly, the terminal receives information indicating the second perception device from the network device through the first access network device.

In step 4.28, the information for indicating the second sensing device may be carried in a message between the network device and the terminal, such as control plane signaling. For example, in step 4.23, when the sensing requirement of the terminal is carried in the first sensing request message, the information for indicating the second sensing device may be carried in the first sensing response message.

In this design, the first perception device may be the second perception device, and S401 includes the terminal sending the perception requirement of the terminal to the first access network device in step 4.22 and the terminal receiving information for indicating the second perception device from the network device in step 4.28. The information for indicating the second perception device is the information for indicating the first perception device.

Design 3

The first sensing device is a sensing device determined by the application server from the second sensing devices according to the subscription information of the terminal. In this case, the method provided in FIG4 may include steps 4.31 to 4.33.

Step 4.31: The terminal sends information indicating the second sensor device to the application server. Correspondingly, the application server receives the information indicating the second sensor device.

Regarding the implementation principle of the information used to indicate the second sensing device, please refer to the relevant introduction of step 4.13 of design 1, which will not be repeated here.

In step 4.31, the information for indicating the second sensing device may be carried in a message between the terminal and the application server, such as control plane signaling. For example, the information for indicating the second sensing device may be carried in a second sensing request message. In some possible scenarios, the second sensing request message may also be referred to as a sensing groups determination request.

Step 4.32: The application server determines one or more sensing devices, namely, fourth sensing devices, from the second sensing devices according to the subscription information of the terminal.

Among them, the implementation principle of step 4.32 can refer to the relevant introduction of determining the first sensing device in Example 1, which will not be repeated here.

Step 4.33: The application server sends information indicating the fourth sensory device to the terminal. Correspondingly, the terminal receives the information indicating the fourth sensory device from the application server.

It should be understood that the terminal receiving information for indicating the first perception device from the application server may include: the terminal receiving information for indicating the fourth perception device from the application server through the network device.

In step 4.33, the information for indicating the fourth perception device may be carried in a message between the application server and the terminal, such as control plane signaling. For example, the information for indicating the fourth perception device may be carried in a second perception response message. Here, the second perception response message is only used as an example. In actual implementation, the second perception response message may also have other possible names, which will not be repeated here.

In this design, the first perception device is the fourth perception device, and S401 includes the terminal in step 4.31 sending information for indicating the second perception device to the application server, and the terminal in step 4.33 receiving information for indicating the fourth perception device from the application server. The information used to indicate the fourth perception device is the information used to indicate the first perception device. It can be seen that in this design, the second perception device corresponds to the perception demand of the terminal, and the first perception device is the perception device in the second perception device that corresponds to the subscription information subscribed by the terminal to the application server, such as the perception task type subscribed by the terminal to the application server. In this way, the first perception device can be determined based on the perception demand of the terminal and the perception task type subscribed by the terminal to the application server, thereby reducing the complexity of determining the first perception device.

In the embodiment of the present application, the second perception device corresponds to the perception requirement of the terminal, or it can be said that the second perception device matches the perception requirement of the terminal. Exemplarily, the second perception device is determined according to the perception requirement of the terminal.

It is understandable that in Design 3, before step 4.31, the method provided in FIG4 may also include any step shown in Design 1 or Design 2. In other words, the second sensing device in step 4.31 may be obtained according to the scheme of Design 1 or Design 2.

Design 4

The first sensing device is determined based on information including the trustworthiness of the sensing device set. At this time, the method provided in FIG4 may include steps 4.41 to 4.45.

Step 4.41: The network device obtains information indicating a second sensing device, wherein the second sensing device includes one or more sensing devices.

In one possible design scheme, in this case, if there is a perception device corresponding to the perception needs of the terminal within the coverage range of the first access network device, the method provided in Figure 4 includes the following design 4-1.

Design 4-1, wherein Design 4-1 includes steps 4.41a to 4.41d.

Step 4.41a, the terminal obtains the perception requirements of the terminal.

Step 4.41b: The terminal sends the sensing requirement of the terminal to the first access network device. Correspondingly, the first access network device receives the sensing requirement of the terminal.

Step 4.41c: When there is a perception device corresponding to the perception requirement of the terminal within the coverage of the first access network device, the first access network device determines a second perception device according to the perception requirement of the terminal.

The implementation principles of steps 4.41a to 4.41c can correspond to the relevant introductions of steps 4.11 to 4.13 in reference design 1, and will not be repeated here.

Step 4.41d: The first access network device sends information indicating the second sensing device to the network device. Correspondingly, the network device receives the information indicating the second sensing device from the first access network device.

For example, the information used in step 4.41d to indicate the second perception device can be carried in a message between the first access network device and the network device, such as in control plane signaling, such as in a second perception request message. It should be understood that the second perception request message is only used for example and will not be repeated here.

In design 4-1, step 4.41 includes step 4.41d in which the network device receives information from the first access network device for indicating the second sensing device.

In one possible design scheme, if there is no perception device corresponding to the terminal's perception needs within the coverage range of the first access network device, then the following design 4-2 can be used as a reference.

Design 4-2

The method provided in FIG. 4 may include steps 4.41e to 4.41k.

In step 4.41e, the terminal obtains the perception requirements of the terminal.

Step 4.41f, the terminal sends the perception requirement of the terminal to the first access network device. Correspondingly, the first access network device receives the perception requirement of the terminal.

Step 4.41g: When the terminal determines that there is no perception device corresponding to the perception demand of the terminal within the coverage of the first access network device, the terminal sends the perception demand of the terminal to the network device.

Step 4.41h: The network device determines the second access network device.

Step 4.41i: The network device sends the perception requirement of the terminal to the second access network device. Correspondingly, the second access network device receives the perception requirement of the terminal.

Step 4.41j: The second access network device determines the second perception device according to the perception requirements of the terminal.

Step 4.41k: The second access network device sends information indicating the second sensing device to the network device. Correspondingly, the network device receives the information indicating the second sensing device from the second access network device.

The information used to indicate the second perception device can be carried in a message sent by the second access network device to the network device. For example, if the perception requirement of the terminal in step 4.41i is carried in a perception request message, the information used to indicate the second perception device in step 4.41k can be carried in a perception response message.

For the implementation of steps 4.41e to 4.41k, please refer to the relevant introduction of steps 4.21 to 4.27, which will not be repeated here.

Under design 4-2, step 4.41 includes the network device in step 4.41k receiving information indicating the second sensing device from the second access network device.

In step 4.42, the network device divides the second sensing device into one or more sensing device sets.

The following example illustrates the principle of dividing a network device into one or more sets of sensing devices.

The network device can obtain the identity (ID) of the second perception device. In addition, the network device can also obtain the social level information corresponding to the perception device, the authority level information corresponding to the perception device, or the identity type information corresponding to the perception device.

The social hierarchy information corresponding to the sensing device refers to the information corresponding to the social role corresponding to the sensing device, which can be used to indicate the credibility of the sensing device. For example, if the sensing device is used to collect information related to employees, then the social hierarchy information can be information used to indicate the position of the employee. The higher the position of the employee, the higher the credibility of the sensing device, and the lower the position of the employee, the lower the credibility of the sensing device. For another example, if the sensing device is a device for collecting information related to a router, then the social hierarchy information can also be the level of the area corresponding to the router.

The authority level information corresponding to the sensing device refers to the technical level and/or ability information of the social role corresponding to the sensing device, which can be used to indicate the credibility of the sensing device. Among them, the higher the technical level corresponding to the sensing device, the higher the credibility of the sensing device, and the lower the technical level corresponding to the sensing device, the lower the credibility of the sensing device. Similarly, the greater the ability corresponding to the sensing device, the higher the feasibility of the sensing device, and the smaller the ability corresponding to the sensing device, the lower the feasibility of the sensing device.

Among them, the social level information corresponding to the perception device, the authority level information corresponding to the perception device, or the identity type information corresponding to the perception device can be used to determine the trust level, that is, the degree of credibility, of the perception device.

As shown in Fig. 5, it is a schematic diagram 1 of the state change process of the node corresponding to the second sensing device. After the network device determines the second sensing device, it can obtain the node corresponding to each sensing device in the second sensing device.

Based on the information of transactions between the various sensing devices in the second sensing device, such as transaction records (also referred to as data information interaction records), the network device can determine the edges between the nodes corresponding to the various sensing devices in the second sensing device. Among them, the information of transactions between the various sensing devices in the second sensing device can be determined based on the IDs of the various sensing devices. If there is a transaction between two sensing devices, there is an edge between the nodes corresponding to the two sensing devices. It can be understood that an edge can be used to represent a transaction between two sensing devices.

Afterwards, the network device can determine the weight of each edge in all second sensing devices according to the number of successful transactions between the sensing devices corresponding to the nodes at both ends of each edge and the historical trust records, thereby forming a network graph.

Based on the network diagram, the network device can determine the first type of perception device set (hereinafter referred to as the perception domain).

Each perception domain may include one or more perception devices. The perception devices in the same perception domain may be perception devices in the same area, or the perception devices in the same perception domain may be perception devices of the same perception task type corresponding to the collected perception information.

In one possible design, the network device may determine the total number of shortest paths in the network graph that pass through the nodes corresponding to each sensing device, and divide the sensing domain according to the shortest path edges.

In a possible design, the perception domain may be divided according to the area or distance of the perception device. For example, the perception domain may be divided based on the distance, and the perception devices whose distances are less than or equal to the distance threshold are divided into the same perception domain.

As shown in FIG6 , assuming that there are perception devices 1 to 28, and perception devices 1 to 28 include network devices of levels 1 to 4, wherein the distance between every two devices in perception devices 1 to 14 is less than a distance threshold, and the distance between every two devices in perception devices 15 to 28 is less than a distance threshold, then, perception devices 1 to 14 can be divided into the same perception domain, and perception devices 15 to 28 can be divided into the same perception domain.

It is understandable that the distance in the embodiment of the present application may refer to the Euclidean distance or other distance, which is not limited here.

In one possible design, the perception domain can be divided based on augmented similarity grouping (ASG). In this case, the perception devices with the most common attributes (features) are divided into one perception domain. For example, if perception devices A and B both have five similar attributes, and perception devices A and C both have one similar attribute, then perception devices A and B can be divided into the same perception domain, and perception device C can be divided into another perception domain.

The network device determines the set of second-class sensing devices in each sensing domain (i.e., one or more sets of sensing devices determined by the network device), and obtains the degree of trust of each set of second-class sensing devices. The network device can determine the type of trust assessment according to the application scenario, and further divide the sensing domain into sets of second-class sensing devices according to whether the sensing devices have different status (weights) and scenario requirements.

Regarding the principle of dividing the second type of perception device set from the perception domain, you can refer to the relevant introduction of dividing the perception domain from the network diagram, or you can use other existing technologies for dividing the set to divide the second type of perception device set, which will not be repeated here.

In this way, by first dividing the perception domain and then dividing the second type of perception device set based on the perception domain, the processing complexity can be reduced.

It can be understood that in the embodiment of the present application, the set of second-category perception devices in the perception domain is a subset of the perception domain.

The trust evaluation type may include point-to-point evaluation or evaluation of an evaluation domain by an evaluation domain. If the evaluation is performed by an evaluation domain by an evaluation domain, each set of second-category sensing devices corresponds to an evaluation domain.

In some possible design schemes, the network device can determine the indicator for trust evaluation according to the application scenario, and select an aggregation method based on the selected indicator for trust evaluation to aggregate the trustworthiness of all sensing devices in each second type of sensing device set into a sensing device set. It should be understood that in the embodiments of the present application, unless otherwise specified, the set of sensing devices refers to the set of second-category sensing devices.

Indicators used for trust assessment may include one or more of the following: security (used to indicate whether the trust assessment method is safe or vulnerable to attack), functionality (used to indicate the type of trusted results), robustness (used to indicate the possibility of data recovery in the event of data packet transmission errors), availability (used to indicate the scope of application of the assessment method), interpretability (used to indicate that the assessment rules can be represented), neutrality (used to indicate the same degree of trust under the same conditions), or comprehensiveness (used to indicate that factors related to trust are comprehensive).

For ease of understanding, the state change schematic diagram corresponding to the above-mentioned Figure 5 is illustrated below in combination with the perception device. For example, assuming that there are 28 second perception devices, the network device can determine the nodes corresponding to each perception device in the second perception device as shown in (a) in Figure 7, and then, based on the nodes shown in (a) in Figure 7, the network device can determine the network diagram as shown in (b) in Figure 7. Based on the network diagram in (b) in Figure 7, the network device can determine the perception domains as shown in (a) in Figure 8, such as perception domain 1 to perception domain 6. Based on (a) in Figure 8, the network device can determine the sets of perception devices as shown in (b) in Figure 8.

In step 4.43, the network device determines the trustworthiness of one or more sets of sensing devices.

The trust level of the sensing device set is used to indicate the trust level of the sensing device set.

Regarding the principle of how a network device determines the degree of trustworthiness of one or more sets of sensing devices, reference can be made to the domain-to-domain trust evaluation method in existing solutions, which will not be repeated here.

Step 4.44: The network device determines that a sensing device in a set of sensing devices whose credibility is greater than or equal to a trust threshold in one or more sets of sensing devices is a first sensing device.

In other words, the network device determines a sensing device in the set of sensing devices whose trustworthiness is greater than or equal to the trust threshold in one or more sets of sensing devices as the first sensing device.

Step 4.45: The network device sends information indicating the first sensing device to the terminal. Correspondingly, the terminal receives the information indicating the first sensing device from the network device.

The network device sends information indicating the first perception device to the terminal, which may include: when the authentication of the terminal is successful, the network device sends information indicating the first perception device to the terminal.

In step 4.45, the information for indicating the first sensing device may be carried in a message between the network device and the terminal, such as control plane signaling. For example, the information for indicating the first sensing device may be carried in a protected message.

In this design, S401 includes the terminal sending information indicating the perception needs of the terminal to the first access network device in step 4.41b, and the terminal receiving information indicating the first perception device from the network device in step 4.45. The first perception device corresponds to the perception needs of the terminal, and the credibility of the perception device set to which the first perception device belongs is determined to be greater than or equal to the trust threshold. In this way, the perception information generated by the first perception device corresponds to the perception needs of the terminal and to the credibility of the perception device set, so that the perception needs of the terminal and the credibility of the perception results can be taken into account.

Based on the solution of Design 4, the network device can divide one or more sensing devices into one or more sensing device sets and determine the trust value of the sensing device set. In this way, the trust evaluation result, that is, the accuracy of the credibility, can be improved, thereby screening out a sensing device set with a higher degree of credibility.

Design 5

The first sensing device is determined based on information including the ordering information of the terminal and the credibility of the set of sensing devices. In this case, the method provided in FIG. 4 may further include: steps 4.51 to 4.57.

Step 4.51: The terminal sends information indicating the second sensor device to the application server. Correspondingly, the application server receives the information indicating the second sensor device from the terminal.

In step 4.51, the information for indicating the second sensing device may be carried in a message between the terminal and the application server, such as control plane signaling. For example, the information for indicating the second sensing device may be carried in a second sensing response message, which will not be described in detail here.

Step 4.52: The application server determines a fourth sensing device from the second sensing devices according to the subscription information of the terminal.

For the implementation principle of step 4.52, please refer to the relevant introduction of determining the first sensing device in Example 1, which will not be repeated here.

Step 4.53: The application server sends information indicating the fourth sensory device to the network device. Correspondingly, the network device receives the information indicating the fourth sensory device from the application server.

In step 4.53, the information for indicating the fourth sensory device may be carried in a message between the application server and the network device, such as control plane signaling. For example, the information for indicating the fourth sensory device may be carried in a request message for requesting to obtain a set of sensory devices corresponding to the terminal, which will not be described in detail here.

In step 4.54, the network device divides the fourth sensing device into one or more sensing device sets.

For the implementation principle of step 4.54, reference may be made to the relevant introduction of the above step 4.42, the difference being that the second sensing device in the above step 4.42 is replaced by the fourth sensing device.

In step 4.55, the network device determines the trustworthiness of one or more sets of sensing devices, where the trustworthiness of the sensing devices is used to indicate the trustworthiness of the set of sensing devices.

For the implementation principle of step 4.55, please refer to the relevant introduction of the above step 4.43, which will not be repeated here.

Step 4.56: The network device determines that a perceptual device in a set of one or more perceptual devices whose trustworthiness is greater than or equal to a first trust threshold is a first perceptual device.

For the implementation principle of step 4.56, please refer to the relevant introduction of the above step 4.44, which will not be repeated here.

Step 4.57: The network device sends information indicating the first sensing device to the terminal. Correspondingly, the terminal receives the information indicating the first sensing device from the network device.

For the implementation principle of step 4.57, please refer to the relevant introduction of the above step 4.45, which will not be repeated here.

In this design, S401 includes the terminal sending information indicating the second perception device to the application server in step 4.51, and the terminal receiving information indicating the first perception device from the network device in step 4.57. The second perception device corresponds to the perception demand of the terminal. The first perception device is a perception device among the second perception devices that meets the first condition, and the first condition includes: (1) corresponding to the type of perception task ordered by the terminal to the application server, and (2) the credibility of the perception device set to which it belongs is greater than or equal to the trust threshold. In this way, when the first perception device is a perception device in the perception device set whose credibility is greater than or equal to the trust threshold, the perception demand of the terminal, information security and the credibility of the perception information can be taken into account.

It can be understood that in Design 5, before step 4.51, the method provided in FIG4 can also include any step shown in Design 1 or Design 2. In other words, the second sensing device in step 4.51 can be obtained according to the scheme of Design 1 or Design 2.

If in Design 5, before step 4.51, the method provided in FIG. 4 may also include Design 1, the terminal may determine the second set of sensing devices through the first access network device.

If in Design 5, before step 4.51, the method provided in Figure 4 can also include Design 2, then when it is determined according to the perception requirement that the perception device corresponding to the perception requirement is outside the coverage of the first device and within the coverage of the second access network device, the second perception device can be obtained through the second access network device, thereby improving the success rate of the terminal in obtaining the perception results.

The first access network device receiving the perception demand of the terminal in the above step 4.12, or the second access network device receiving the perception demand of the terminal in step 4.25, can both be said to be: the access network device obtains the perception demand of the terminal.

In the above step 4.13, the first access network device determines the second perception device according to the perception requirements of the terminal, or in step 4.26, the second access network device determines the second perception device according to the perception requirements of the terminal. Both can be said to be: the access network device determines the second perception device according to the perception requirements of the terminal.

It should be understood that the above-mentioned first access network device or the above-mentioned second access network device can be referred to as an access network device. The first access network device in the above-mentioned step 4.14 sends information for indicating the second perception device to the terminal, or the second access network device in step 4.28 sends information for indicating the second perception device to the network device, which can be said to be: the access network device sends information for indicating the second perception device.

The second sensing device includes one or more sensing devices, and the fourth sensing device includes one or more sensing devices. Therefore, the network device receiving information for indicating the second sensing device in step 4.27, or the network device receiving information for indicating the fourth sensing device from the application server in step 4.53, can be said to be: the network device obtains information for indicating one or more sensing devices.

It can be understood that the principle of obtaining the second sensing device in the embodiment of the present application is only used as an example. In actual implementation, other methods can also be used to obtain the second sensing device.

Design 6, before S403, the method provided in FIG4 may further include: the application server determines whether the terminal has the authority to obtain the perception information of the perception device in the first perception device, and determines the perception device corresponding to the perception information that the terminal has the authority to obtain in the first perception device as the third perception device. For example, the third perception device is the subscription information of the terminal in the first perception device, such as the perception device corresponding to the perception task type that the terminal has subscribed to the application server.

The perception device corresponding to the perception information is the perception device that generates the perception information.

Based on the method provided in FIG. 4 , the terminal can request the perception result by sending a first message to the application server, wherein the first message includes information for indicating the first perception device, that is, the terminal can indicate the first perception device, and therefore based on this, the terminal can obtain the perception result determined by the perception information of at least part of the first perception device from the application server, that is, the terminal can obtain the perception result determined according to the perception information of the perception device indicated by the terminal. For example, the terminal can determine the first perception device according to the perception requirement of the terminal and then obtain the perception result, so that the terminal can obtain the perception result corresponding to the perception requirement of the terminal.

In addition, the method provided in FIG. 4 can reduce the dependence of the information sensing application on the application server, and thus can be applied to more scenarios.

The solution provided in FIG. 4 above, based on any one of the designs 1 to 5 above, can achieve the purpose of obtaining the perception result corresponding to the sensing information of the terminal through the wireless network.

In addition, when the first perception device is determined according to the perception requirements of the terminal, a perception device corresponding to the perception requirements of the terminal can also be obtained.

In a possible design, the network device sending information indicating the first sensing device to the terminal may include: when authentication of the terminal is successful, the network device sending information indicating the first sensing device to the terminal. In this way, security can be improved.

It should be understood that the information exchanged between different devices in the embodiments of the present application, such as between a terminal, an access network device, or between any two devices in a network device and an application server, can be carried in control plane signaling. The control plane signaling can be a wireless network, such as signaling in a cellular network. In this way, the terminal can obtain the perception result corresponding to the terminal demand through the wireless network.

To facilitate understanding of the embodiments of the present application, the communication method provided in FIG. 4 is illustrated below with reference to specific scenarios.

In some embodiments, there is a sensing device corresponding to the sensing demand of the terminal within the coverage of the access network device providing services to the terminal, that is, the second sensing device mentioned above. In this case, the application server can determine the fourth sensing device from the second sensing device according to the subscription information of the terminal, and then the network device divides the fourth sensing device into a sensing device set, and determines the first sensing device according to the credibility of the divided sensing device set. The following is explained in conjunction with Figure 9.

FIG9 is a flow chart of a communication method according to an embodiment of the present application. As shown in FIG9 , the communication method includes:

S901: A terminal sends a perception requirement of the terminal to a first access network device. Correspondingly, the first access network device receives the perception requirement of the terminal.

The perception requirement of the terminal may be acquired by the terminal, that is, the method provided in FIG. 9 may further include: the terminal acquires the perception requirement of the terminal.

For the relevant introduction about the terminal's perception needs, please refer to the relevant introduction in the method provided in FIG. 4 . For the implementation principle of S901 , please refer to the relevant introduction in step 4.12 in the method provided in FIG. 4 . No further details will be given here.

S902: When there is a perception device corresponding to the perception requirement of the terminal within the coverage of the first access network device, the first access network device determines a second perception device according to the perception requirement of the terminal.

For the implementation principle of S902, please refer to the relevant introduction of step 4.13 in design 1 of the method provided in Figure 4, which will not be repeated here.

S903: The first access network device sends information indicating the second perception device to the terminal. Correspondingly, the terminal receives the information indicating the second perception device from the first access network device.

For the implementation principle of S903, please refer to the relevant introduction of step 4.14 in design 1 of the method provided in Figure 4, which will not be repeated here.

S904: The terminal sends information indicating the second sensor device to the application server. Correspondingly, the application server receives the information indicating the second sensor device from the terminal.

For the implementation principle of S904, please refer to the relevant introduction of step 4.51 in design 5 of the method provided in Figure 4, which will not be repeated here.

S905: The application server determines one or more sensing devices, namely, fourth sensing devices, from the second sensing devices according to the subscription information of the terminal.

For the implementation principle of S905, please refer to the relevant introduction of step 4.52 in design 5 of the method provided in FIG. 4, which will not be repeated here.

S906, the application server sends information indicating the fourth sensor device to the network device. Correspondingly, the network device receives the information indicating the fourth sensor device from the application server.

For the implementation principle of S906, please refer to the relevant introduction of step 4.53 in design 5 of the method provided in Figure 4, which will not be repeated here.

S907: The network device divides the fourth sensing device into one or more sensing device sets.

For the implementation of S907, please refer to the relevant introduction of step 4.54 in design 5 of the method provided in Figure 4, which will not be repeated here.

S908, the network device determines the credibility of one or more sets of perception devices, and determines a perception device in the set of perception devices whose credibility is greater than or equal to a threshold in the one or more sets of perception devices as a first perception device.

Regarding the implementation of the trustworthiness of the set of sensing devices, please refer to the relevant introduction in FIG. 4 . Regarding the implementation of S908 , please refer to the relevant introduction of steps 4.55 and 4.56 in design 5 of the method provided in FIG. 4 . No further details will be given here.

S909: The terminal and the network device perform mutual authentication.

Regarding the method of mutual authentication between the terminal and the network device, reference may be made to the related introduction of mutual authentication between the terminal and the network device in the prior art, which will not be repeated here.

S910: The network device sends information indicating a first sensing device to the terminal. Correspondingly, the terminal receives the information indicating the first sensing device from the network device.

For the implementation principle of S910, please refer to the relevant introduction of step 4.57 in design 5 of the method provided in Figure 4, which will not be repeated here.

S911, the terminal sends a first message to the application server. Correspondingly, the application server receives the first message from the terminal.

For the implementation principle of the first message, please refer to the relevant introduction of the first message in the method provided in Figure 4. For the implementation principle of S911, please refer to the relevant introduction of S402 in the method provided in Figure 4, which will not be repeated here.

S912: The application server sends a first perception result to the terminal. Correspondingly, the terminal receives the first perception result from the application server.

For the implementation principle of the first perception result, please refer to the relevant introduction of the first perception result of S403 in the method provided in Figure 4. For the implementation principle of S912, please refer to the relevant introduction of S403 in the method provided in Figure 4, and no further details will be given here.

In some possible designs, S909 of the method provided in Fig. 9 may not be performed. In some possible designs, after S909 is performed, if the terminal authentication is successful and the network device authentication is successful, S910 is performed.

Regarding the technical effects of the method provided in FIG. 9 , please refer to the relevant introduction in the method provided in FIG. 4 , which will not be repeated here.

In some embodiments, there is a sensing device corresponding to the sensing requirement of the terminal within the coverage of the access network device providing services to the terminal, that is, the second sensing device mentioned above. In this case, the network device can divide the second sensing device into a sensing device set, and determine the first sensing device according to the credibility of the divided sensing device set. The following is explained in conjunction with FIG10.

As shown in FIG10 , the communication method includes:

S1001: A terminal sends a perception requirement of the terminal to a first access network device. Correspondingly, the first access network device receives the perception requirement of the terminal.

The perception requirement of the terminal may be acquired by the terminal, that is, the method provided in FIG. 10 may further include: the terminal acquires the perception requirement of the terminal.

For the relevant introduction about the perception requirements of the terminal, please refer to the relevant introduction in the method provided in FIG. 4 . For the implementation principle of S1001 , please refer to the relevant introduction in step 4.41b in design 4 of the method provided in FIG. 4 .

S1002: When there is a perception device corresponding to the perception demand of the terminal within the coverage of the first access network device, the first access network device determines a second perception device according to the perception demand of the terminal.

For the implementation principle of S1002, please refer to the relevant introduction of step 4.41c in Design 4 of the method provided in Figure 4, which will not be repeated here.

S1003: The first access network device sends information indicating the second perception device to the network device. Correspondingly, the network device receives the information indicating the second perception device from the first access network device.

For the implementation principle of step S1003, please refer to the relevant introduction of step 4.41d in design 4 of the method provided in Figure 4, which will not be repeated here.

S1004: The network device divides the second sensing device into one or more sensing device sets.

For the implementation principle of S1004, please refer to the relevant introduction of step 4.42 in design 4 of the method provided in Figure 4, which will not be repeated here.

S1005, the network device determines the credibility of a set of perception devices in one or more sets of perception devices, and determines a perception device in the set of perception devices in the one or more sets of perception devices whose credibility is greater than or equal to a threshold as a first perception device.

For the implementation principle of S1005, please refer to the relevant introduction of step 4.43 and step 4.44 in design 4 of the method provided in Figure 4, which will not be repeated here.

S1006: The terminal and the network device perform mutual authentication.

Regarding the method of mutual authentication between the terminal and the network device, reference may be made to the related introduction of mutual authentication between the terminal and the network device in the prior art, which will not be repeated here.

S1007: The network device sends information indicating the first sensing device to the terminal. Correspondingly, the terminal receives the information indicating the first sensing device from the network device.

For the implementation principle of S1007, please refer to the relevant introduction of step 4.45 of design 4 of the method provided in Figure 4, which will not be repeated here.

S1008: The terminal sends information indicating the first sensing device to the application server. Correspondingly, the application server receives the information indicating the first sensing device from the terminal.

For the implementation principle of S1008, reference may be made to the relevant introduction of S402 in the method provided in FIG. 4, which will not be repeated here.

S1009: The application server determines a third perception device from the first perception devices.

The third perception device is a perception device in the first perception device that corresponds to the type of perception task ordered by the terminal to the application server; the first perception result is determined based on the perception information of the third perception device.

For the implementation principle of S1009, please refer to the relevant introduction of the method provided in FIG4 , which will not be repeated here.

S1010: The application server sends a first perception result to the terminal. Correspondingly, the terminal receives the first perception result from the application server.

For the implementation principle of S1010, reference may be made to the relevant introduction of S403 in the method provided in FIG. 4 .

It should be understood that in some possible designs, in the method provided in FIG. 10 above, S1004 and S1005 may be combined into one step. In some possible designs, S1006 may not be performed. In some possible designs, after S1006 is performed, if the terminal authentication is successful and the network device authentication is successful, S1007 is performed.

Regarding the technical effects of the method provided in FIG. 10 , reference may be made to the technical effects of the method provided in FIG. 4 , which will not be repeated here.

In some embodiments, there is no perception device corresponding to the perception needs of the terminal, i.e., the second perception device mentioned above, within the coverage of the access network device providing services to the terminal. In this case, the application server can determine the fourth perception device from the second perception device according to the terminal's subscription information, and then the network device divides the fourth perception device into a perception device set, and determines the first perception device according to the credibility of the divided perception device set. The following is explained in conjunction with Figure 11. Figure 11 is a flow chart of the communication method provided in an embodiment of the present application. As shown in Figure 11, the communication method includes:

S1101: A terminal sends a perception requirement of the terminal to a first access network device. Correspondingly, the first access network device receives the perception requirement of the terminal.

Among them, the perception needs of the terminal can be acquired by the terminal, that is, the method provided in Figure 11 can also include: the terminal acquires the perception needs of the terminal.

For the relevant introduction about the terminal's perception needs, please refer to the relevant introduction in the method provided in FIG. 4 . For the implementation principle of S1101 , please refer to the relevant introduction in Design 2 Step 4.22 of the method provided in FIG. 4 . No further details will be given here.

S1102: The first access network device determines whether there is a perception device corresponding to the perception requirement of the terminal within the coverage area of the first access network device.

When the first access network device determines that there is no perception device corresponding to the perception demand of the terminal within the coverage of the first access network device, the following S1103 is executed.

For the implementation principle of S1102, please refer to the relevant introduction of step 4.23 of design 2 of the method provided in Figure 4, which will not be repeated here.

S1103: The first access network device sends the perception requirement of the terminal to the network device. Correspondingly, the network device receives the perception requirement of the terminal from the first network device.

For the implementation principle of S1103, please refer to the relevant introduction of step 4.23 of design 2 of the method provided in Figure 4, which will not be repeated here.

S1104: The network device determines a second access network device.

For the implementation principle of S1104, please refer to the relevant introduction of step 4.24 of design 2 of the method provided in Figure 4, which will not be repeated here.

S1105: The network device sends the perception requirement of the terminal to the second access network device. Correspondingly, the second access network device receives the perception requirement of the terminal from the network device.

For the implementation principle of S1105, please refer to the relevant introduction of step 4.25 in design 2 of the method provided in Figure 4, which will not be repeated here.

S1106: The second access network device determines a second perception device according to the perception requirements of the terminal.

For the implementation principle of S1106, please refer to the relevant introduction of step 4.26 in design 2 of the method provided in Figure 4, which will not be repeated here.

S1107: The second access network device sends information indicating the second perception device to the network device. Correspondingly, the network device receives the information indicating the second perception device from the second network device.

For the implementation principle of S1107, please refer to the relevant introduction of step 4.27 in design 2 of the method provided in Figure 4, which will not be repeated here.

S1108: The network device sends information indicating the second sensing device to the terminal. Correspondingly, the terminal receives the information indicating the second sensing device from the network device.

For the implementation principle of S1108, please refer to the relevant introduction of step 4.28 in design 2 of the method provided in Figure 4, which will not be repeated here.

S1109: The terminal sends information indicating the second sensor device to the application server. Correspondingly, the application server receives the information indicating the second sensor device from the terminal.

For the implementation principle of S1109, please refer to the relevant introduction of step 4.51 in design 5 of the method provided in Figure 4, which will not be repeated here.

S1110, the application server determines a fourth sensing device from the second sensing devices according to the subscription information of the terminal.

For the implementation principle of S1110, please refer to the relevant introduction of step 4.52 in design 5 of the method provided in Figure 4, which will not be repeated here.

S1111, the application server sends information indicating the fourth sensory device to the network device. Correspondingly, the network device receives the information indicating the fourth sensory device from the application server.

For the implementation principle of S1111, please refer to the relevant introduction of step 4.53 in design 5 of the method provided in Figure 4, which will not be repeated here.

S1112: The network device divides the fourth sensing device into one or more sensing device sets.

For the implementation of S1112, please refer to the relevant introduction of step 4.54 in design 5 of the method provided in Figure 4, which will not be repeated here.

S1113, the network device determines the credibility of the one or more perception device sets, and determines the perception device in the one or more perception device sets whose credibility is greater than or equal to a threshold as the first perception device.

For the implementation of S1113, please refer to the relevant introduction of step 4.55 and step 4.56 in design 5 of the method provided in Figure 4, which will not be repeated here.

S1114, the terminal and the network device perform mutual authentication.

Regarding the method of mutual authentication between the terminal and the network device, reference may be made to the related introduction of mutual authentication between the terminal and the network device in the prior art, which will not be repeated here.

S1115, the network device sends information indicating the first sensing device to the terminal. Correspondingly, the terminal receives the information indicating the first sensing device from the network device.

For the implementation principle of S1115, please refer to the relevant introduction of step 4.57 in design 5 of the method provided in Figure 4, which will not be repeated here.

S1116: The terminal sends a first message to the application server. Correspondingly, the application server receives the first message from the terminal.

For the implementation principle of S1116, reference may be made to the relevant introduction of S402 in the method provided in FIG4 , which will not be repeated here.

S1117: The application server sends the first perception result to the terminal. Correspondingly, the terminal receives the first perception result from the application server.

For the implementation principle of S1117, please refer to the relevant introduction of S403 in the method provided in FIG4 , which will not be repeated here.

It should be understood that in some possible designs, in the method provided in FIG. 11 above, S1112 and S1113 may be combined into one step. In some possible designs, S1114 may not be performed. In some possible designs, after S1114 is performed, if the terminal authentication is successful and the network device authentication is successful, S1115 is performed.

Regarding the technical effects of the method provided in FIG. 11 , please refer to the relevant introduction in the method provided in FIG. 4 , which will not be repeated here.

In some embodiments, there is no perception device corresponding to the perception demand of the terminal, i.e., the second perception device mentioned above, within the coverage of the access network device providing services to the terminal. In this case, the application server can filter the perception devices from the second perception devices according to the ordering information of the terminal, and then the network device divides the filtered perception devices into a perception device set, and determines the first perception device according to the credibility of the divided perception device set. The following is explained in conjunction with FIG12. As shown in FIG12, the communication method includes:

S1201: A terminal sends a perception requirement of the terminal to a first access network device. Correspondingly, the first access network device receives the perception requirement of the terminal.

Among them, the perception needs of the terminal can be acquired by the terminal, that is, the method provided in Figure 12 can also include: the terminal acquires the perception needs of the terminal.

For the relevant introduction about the terminal's perception needs, please refer to the relevant introduction in the method provided in FIG. 4 . For the implementation principle of S1202 , please refer to the relevant introduction in step 4.41f in design 4 of the method provided in FIG. 4 , which will not be repeated here.

S1202: The first access network device determines whether there is a perception device corresponding to the perception requirement of the terminal within the coverage of the first access network device.

When the first access network device determines that there is no perception device corresponding to the perception demand of the terminal within the coverage of the first access network device, the following S1203 is executed.

For the implementation principle of S1202, please refer to the relevant introduction of step 4.41g in Design 4 of the method provided in Figure 4, which will not be repeated here.

S1203: The first access network device sends the perception requirement of the terminal to the network device. Correspondingly, the network device receives the perception requirement of the terminal from the first access network device.

For the implementation principle of S1203, please refer to the relevant introduction of step 4.41g in Design 4 of the method provided in Figure 4, which will not be repeated here.

S1204: The network device determines a second access network device.

For the implementation principle of S1204, please refer to the relevant introduction of step 4.41h in Design 4 of the method provided in Figure 4, which will not be repeated here.

S1205: The network device sends the perception requirement of the terminal to the second access network device. Correspondingly, the second access network device receives the perception requirement of the terminal from the network device.

For the implementation principle of S1205, please refer to the relevant introduction of step 4.41i in method design 4 provided in Figure 4, which will not be repeated here.

S1206: The second access network device determines a second perception device according to the perception requirement of the terminal.

For the implementation principle of S1206, please refer to the relevant introduction of step 4.41j in method design 4 provided in Figure 4, which will not be repeated here.

S1207: The second access network device sends information indicating the second perception device to the network device. Correspondingly, the network device receives the information indicating the second perception device from the second access network device.

For the implementation principle of S1207, please refer to the relevant introduction of step 4.41k in method design 4 provided in Figure 4, which will not be repeated here.

S1208: The network device divides the second sensing device into one or more sensing device sets.

For the implementation principle of S1208, please refer to the relevant introduction in step 4.42 of method design 4 provided in Figure 4, which will not be repeated here.

S1209, the network device determines the credibility of the one or more perception device sets, and determines the perception device in the one or more perception device sets whose credibility is greater than or equal to a threshold as the first perception device.

For the implementation principle of S1209, please refer to the relevant introduction of steps 4.43 and 4.44 in Design 4 of the method provided in Figure 4, which will not be repeated here.

S1210, the terminal and the network device perform mutual authentication.

For the implementation principle of S1210, reference may be made to the related introduction of mutual authentication between a terminal and a network device in the prior art, which will not be repeated here.

S1211, the network device sends information indicating a first sensing device to the terminal. Correspondingly, the terminal receives the information indicating the first sensing device from the network device.

For the implementation principle of S1211, please refer to the relevant introduction of step 4.45 in design 4 of the method provided in Figure 4, which will not be repeated here.

S1212: The terminal sends a first message to the application server. Correspondingly, the application server receives the first message from the terminal.

For the implementation principle of the first message, please refer to the relevant introduction in the method provided in FIG. 4 . For the implementation of S1212, please refer to the relevant introduction in S402 in the method provided in FIG. 4 . No further details will be given here.

S1213: The application server determines a third sensing device from the first sensing devices.

For the implementation principle of S1213, please refer to the relevant introduction of S1009 in the method provided in Figure 10, which will not be repeated here.

S1214: The application server sends the first perception result to the terminal. Correspondingly, the terminal receives the first perception result from the application server.

For the implementation principle of S1214, reference may be made to the relevant introduction of S403 in the method provided in FIG4 , which will not be repeated here.

Among them, for the implementation of the first perception result, please refer to the relevant introduction of the first perception result in the method provided in Figure 4, and for the implementation principle of S1213, please refer to the relevant introduction of S403 in the method provided in Figure 4, which will not be repeated here.

It should be understood that in some possible designs, in the method provided in FIG. 12 above, S1208 and S1209 may be combined into one step. In some possible designs, S1210 may not be performed. In some possible designs, S1211 may be performed in S1210 when mutual authentication between the terminal and the network device is passed.

Regarding the technical effects of the method provided in FIG. 12 , please refer to the relevant introduction in the method provided in FIG. 4 , which will not be repeated here.

The above describes in detail the communication method provided by the embodiment of the present application in combination with Figures 4 to 12. The following describes a communication device for executing the communication method provided by the embodiment of the present application. The communication device can be used to execute the functions of the terminal, the first access network device, the network device or the application server in any of the method embodiments in Figure 4 or Figures 9 to 12 above, and the communication device includes a unit (or module) for executing the functions of the terminal, the first access network device, the network device or the application server in any of the method embodiments in Figure 4 or Figures 9 to 12 above. Alternatively, the communication device can be used to execute the functions of the second access network device in Figures 11 to 12, and the communication device includes a unit (or module) for executing the functions of the second access network device in any of the methods in Figures 11 to 12.

It is understandable that, in order to realize the above functions, the communication device includes hardware structures and/or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

The embodiment of the present application can divide the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or software functional module.

Exemplarily, FIG13 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. The communication device may be a terminal or a network device, or may be a chip (system) or other components or assemblies that may be provided in a terminal or a network device. As shown in FIG13 , a communication device 1300 may include a processor 1301. Optionally, the communication device 1300 may further include a memory 1302 and/or a transceiver 1303. The processor 1301 is coupled to the memory 1302 and the transceiver 1303, such as by a communication bus.

The following is a detailed introduction to the various components of the communication device 1300 in conjunction with FIG13:

The processor 1301 is the control center of the communication device 1300, which can be a processor or a general term for multiple processing elements. For example, the processor 1301 is one or more central processing units (CPUs), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application, such as one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs).

Optionally, the processor 1301 may perform various functions of the communication device 1300 by running or executing a software program stored in the memory 1302 , and calling data stored in the memory 1302 .

In a specific implementation, as an embodiment, the processor 1301 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 13 .

In a specific implementation, as an embodiment, the communication device 1300 may also include multiple processors, such as the processor 1301 and the processor 1304 shown in FIG13. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). The processor here may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

The memory 1302 is used to store the software program for executing the solution of the present application, and the execution is controlled by the processor 1301. The specific implementation method can refer to the above method embodiment, which will not be repeated here.

Optionally, the memory 1302 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of memory devices that can store information and instructions. The memory 1302 may be a dynamic storage device of a type, or may be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 1302 may be integrated with the processor 1301, or may exist independently and be coupled to the processor 1301 through the interface circuit (not shown in FIG. 13 ) of the communication device 1300, and the embodiments of the present application do not specifically limit this.

The transceiver 1303 is used for communication with other communication devices. For example, if the communication device 1300 is a terminal, the transceiver 1303 can be used to communicate with a network device, or with another terminal. For another example, if the communication device 1300 is a network device, the transceiver 1303 can be used to communicate with a terminal, or with another network device.

Optionally, the transceiver 1303 may include a receiver and a transmitter (not shown separately in FIG. 13 ), wherein the receiver is used to implement a receiving function, and the transmitter is used to implement a sending function.

Optionally, the transceiver 1303 may be integrated with the processor 1301, or may exist independently and be coupled to the processor 1301 via an interface circuit (not shown in FIG. 13 ) of the communication device 1300 , which is not specifically limited in the embodiments of the present application.

It should be noted that the structure of the communication device 1300 shown in FIG. 13 does not constitute a limitation on the communication device, and an actual communication device may include more or fewer components than shown in the figure, or a combination of certain components, or a different arrangement of components.

In addition, the technical effects of the communication device 1300 can refer to the technical effects of the communication method described in the above method embodiment, and will not be repeated here.

It should be understood that the processor in the embodiment of the present application may be a CPU, and the processor may also be other general-purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory may be a ROM, a programmable read-only memory (programmable ROM, PROM), an erasable programmable read-only memory (erasable PROM, EPROM), an EEPROM or a flash memory. The volatile memory may be a RAM, which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (doubledata rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).

The above embodiments can be implemented in whole or in part by software, hardware (such as circuits), firmware or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

It should be understood that the term "and/or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship, but it may also indicate an "and/or" relationship. Please refer to the context for specific understanding.

In this application, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple.

It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Those skilled in the art will appreciate that the units and algorithm steps of the various examples described in the embodiments disclosed herein can be The functions described herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented by hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

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

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

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

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (46)

A communication method, characterized in that it is applied to a terminal or a chip in the terminal, and the method comprises: Acquiring information indicating a first sensing device; Sending a first message to an application server; wherein the first message is used to request a sensing result, and the first message includes information for indicating the first sensing device; A first perception result is received from the application server, where the first perception result is determined based on perception information of at least some of the first perception devices. The method according to claim 1, characterized in that the obtaining of information indicating the first sensing device comprises: Sending information indicating a second sensing device to the application server, where the second sensing device corresponds to a sensing requirement of the terminal; Information indicating the first sensing device is received from the application server, where the first sensing device is a sensing device among the second sensing devices that corresponds to a sensing task type that the terminal has subscribed to the application server. The method according to claim 1, characterized in that the obtaining of information indicating the first sensing device comprises: Sending information indicating a second perception device to the application server, where the second perception device is determined according to a perception requirement of the terminal; receiving information indicating the first sensing device from a network device, where the first sensing device is a sensing device among the second sensing devices that satisfies a first condition, wherein the first condition includes: (1) corresponding to the type of sensing task ordered by the terminal to the application server; (2) The trustworthiness of the set of sensing devices to which it belongs is greater than or equal to the trust threshold. The method according to claim 2 or 3, characterized in that before sending the information for indicating the second sensing device to the application server, the method further comprises: Sending the perception requirement of the terminal to the first access network device; receiving information for indicating the second sensing device from the first access network device; The first access network device serves the terminal. The method according to claim 2 or 3, characterized in that before sending the information for indicating the second sensing device to the application server, the method further comprises: Sending the perception requirement of the terminal to the first access network device; receiving, through the first access network device, information indicating the second sensing device from the second access network device; The first access network device serves the terminal, and the second sensing device is within the coverage of the second access network device. The method according to claim 4 or 5, characterized in that the second sensing device is determined according to the sensing requirement and the identification information of the terminal, and the method further comprises: Send identification information of the terminal to the first access network device. The method according to any one of claims 1-6 is characterized in that the first sensing device includes a set of M sensing devices, and the information used to indicate the first sensing device includes: information used to indicate the set of M sensing devices, and M is a positive integer. The method according to claim 7 is characterized in that the first perception result includes M perception results, wherein the mth perception result is a perception result determined based on the perception information of the perception device in the mth perception device set in the M perception device sets, wherein m is a positive integer less than or equal to M. The method according to any one of claims 1 to 7, characterized in that The first sensing result includes sensing information of the first sensing device; or, The first perception result is a perception result determined according to the perception information of the first perception device. The method according to claim 1, characterized in that the obtaining of information indicating the first sensing device comprises: Sending the perception requirement of the terminal to the first access network device; Receive information indicating the first perception device from a network device; the first perception device corresponds to the perception requirement of the terminal, and the credibility of the perception device set to which the first perception device belongs is greater than or equal to a trust threshold. The method according to claim 10, characterized in that the first sensing result is determined based on the sensing information of at least part of the first sensing devices, including: The first perception result is determined based on perception information of a third perception device in the first perception device, where the third perception device is a perception device in the first perception device that corresponds to the type of perception task subscribed by the terminal to the application server. The method according to claim 11 is characterized in that the first sensing device includes a set of M sensing devices, and the information used to indicate the first sensing device includes: information used to indicate the set of M sensing devices, and M is a positive integer. The method according to claim 12 is characterized in that the first perception result includes N perception results, wherein the nth perception result is a perception result determined based on the perception information of the third perception device in the nth first perception device set in the N first perception device sets, wherein N is a positive integer less than or equal to M, n is a positive integer less than or equal to N, and the first perception device set is a perception device set in the M perception device sets in which the third perception device exists. The method according to claim 11 or 12, characterized in that the first perception result includes perception information of the third perception device; or The first perception result is a perception result determined according to the perception information of the third perception device. The method according to any one of claims 2 to 14 is characterized in that the perception requirement includes at least one of the following: a type of perception task requested by the terminal, or a location requested for perception by the terminal. A communication method, characterized in that it is applied to an application server or a chip in the application server, and the method comprises: Receiving a first message from a terminal; wherein the first message is used to request a sensing result, and the first message includes information for indicating a first sensing device; A first perception result is sent to the terminal, where the first perception result is determined according to perception information of at least some of the first perception devices. The method according to claim 16, characterized in that before receiving the first message from the terminal, the method further comprises: receiving information indicating a second sensing device from the terminal; the second sensing device corresponds to a sensing requirement of the terminal; Information indicating the first perception device is sent to the terminal, where the first perception device is a perception device in the second perception device that corresponds to the perception task type that the terminal subscribes to the application server. The method according to claim 16, characterized in that before receiving the first message from the terminal, the method further comprises: receiving information indicating a second sensing device from the terminal, where the second sensing device corresponds to a sensing requirement of the terminal; Determine a fourth perception device; the fourth perception device is a perception device in the second perception device corresponding to the perception task type ordered by the terminal to the application server; Sending information indicating the fourth sensing device to the network device; The first sensing device is at least a part of the sensing devices in the fourth sensing device. The method according to any one of claims 16-18 is characterized in that the first perception device includes a set of M perception devices, and the information used to indicate the first perception device includes: information used to indicate the set of M perception devices, and M is a positive integer. The method according to claim 19 is characterized in that the first perception result includes M perception results, wherein the mth perception result is a perception result determined based on the perception information of the perception device in the mth perception device set in the M perception device sets, wherein m is a positive integer less than or equal to M. The method according to any one of claims 16 to 19, characterized in that the first perception result includes perception information of the first perception device; or The first perception result is a perception result determined according to the perception information of the first perception device. The method according to claim 16, wherein the first sensing result is determined based on sensing information of at least part of the first sensing devices, and comprises: The first perception result is determined according to perception information of a third perception device in the first perception device; The method further comprises: Determine the third sensing device from the first sensing devices, where the third sensing device is a sensing device in the first sensing devices corresponding to the sensing task type subscribed by the terminal to the application server; The first perception result is determined according to the perception information of the third perception device. The method according to claim 22 is characterized in that the first perception device includes a set of M perception devices, and the information used to indicate the first perception device includes: information used to indicate the set of M perception devices, and M is a positive integer. The method according to claim 23, characterized in that the first perception result includes N perception results, wherein the nth perception result is a perception result determined according to the perception information of the third perception device in the nth first perception device set in the N first perception device sets, wherein N is a positive integer less than or equal to M, and n is a positive integer less than or equal to N; The first sensing device set is a sensing device set among the M sensing device sets, in which the third sensing device exists. The method according to claim 22 or 23, characterized in that the first perception result includes perception information of the third perception device; or The first perception result is a perception result determined according to the perception information of the third perception device. The method according to any one of claims 17-25 is characterized in that the perception requirement includes at least one of the following: the type of perception task requested by the terminal, or the location requested by the terminal for perception. The method according to claim 16 is characterized in that the first sensing device is determined according to the sensing requirements of the terminal. A communication method, characterized in that it is applied to a network device or a chip in the network device, and the method comprises: Acquire information indicating one or more sensing devices, where the one or more sensing devices are determined according to a sensing requirement of the terminal; Information indicating a first sensing device is sent to the terminal, where the first sensing device is at least part of the one or more sensing devices. The method according to claim 28, characterized in that the method further comprises: dividing the one or more sensing devices into one or more sensing device sets; determining a degree of trustworthiness of the set of one or more sensing devices; Determine a perceiving device in the set of perceiving devices whose credibility in the one or more sets of perceiving devices is greater than or equal to a trust threshold as the first perceiving device. The method according to claim 28 or 29, characterized in that the obtaining of information indicating one or more sensing devices comprises: Information indicating the one or more sensing devices is received from a first access network device, where the first access network device serves the terminal. The method according to claim 28 or 29, characterized in that the obtaining of information indicating one or more sensing devices comprises: Receive information from a second access network device for indicating the one or more sensing devices, where the one or more sensing devices are located within the coverage of the second access network device, and the second access network device is different from the first access network device serving the terminal. The method according to claim 28 or 29, characterized in that the obtaining of information indicating one or more sensing devices comprises: Receive information from an application server for indicating the one or more perception devices; the one or more perception devices are determined according to the perception requirements of the terminal, and the one or more perception devices correspond to the perception task type ordered by the terminal to the application server. The method according to claim 32, characterized in that the method further comprises: Receiving a perception demand of a terminal from a first access network device; Sending the perception needs of the terminal to the second access network device; wherein the first access network device serves the terminal, the one or more perception devices are located within the coverage of the second access network device, and the second access network device is different from the first access network device. The method according to claim 33, characterized in that before sending the perception requirement of the terminal to the second access network device, the method further comprises: The second access network device is determined according to the perception requirements of the terminal. A communication method, characterized in that it is applied to an access network device or a chip in the access network device, and the communication method comprises: Obtain the terminal's perception needs; Determining a second sensing device according to the sensing requirement of the terminal; Information indicating the second sensing device is sent. The method according to claim 35 is characterized in that the perception requirement of the terminal includes the type of perception task requested by the terminal, and the second perception device corresponds to the type of perception task requested by the terminal; and/or the perception requirement of the terminal includes the location where the terminal requests to be perceived, and the second perception device is located at the location where the terminal requests to be perceived. The method according to claim 35 or 36 is characterized in that the access network device is a first access network device serving the terminal; and the acquiring the perception demand of the terminal comprises: receiving the sensing demand from the terminal; The sending of information for indicating the second sensing device includes: Information indicating the second sensing device is sent to the terminal or network device. The method according to claim 35 or 36 is characterized in that the second perception device is located within the coverage of a second access network device, the access network device is a second access network device, the second access network device is different from the first access network device serving the terminal, and the acquiring the perception demand of the terminal comprises: Receive sensing requirements from network devices; The sending of information for indicating the second sensing device includes: Information indicating the second sensing device is sent to the network device. The method according to claim 37, characterized in that the method further comprises: The first access network device receives the perception demand from the terminal; In the case that there is no perception device corresponding to the perception requirement within the coverage of the first access network device, the first access network device sends the perception requirement to the network device. The method according to claim 39, characterized in that the method further comprises: The first access network device receives information from the network device for indicating the second sensing device; The first access network device sends information for indicating the second sensing device to the terminal. A communication device, characterized in that the communication device is used to execute the communication method as described in any one of claims 1-40. A communication device, characterized in that it comprises: a processor and a memory, wherein the memory is used to store a computer program; The processor is coupled to the memory and configured to execute the computer program so that the communication device performs the communication method according to any one of claims 1 to 40. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a computer program or instructions, and when the computer program or instructions are executed on a computer, the computer executes the communication method as described in any one of claims 1-40. A computer program product, characterized in that it comprises a computer program or instructions, and when the computer program or instructions are run on a computer, the computer is caused to execute the communication method as described in any one of claims 1 to 40. A communication system, characterized in that the communication system includes one or more access network devices and one or more network devices; wherein the network device is used to execute the method described in any one of claims 28 to 34, and the access network device is used to execute the method described in any one of claims 35 to 40. The system according to claim 45 is characterized in that the communication system also includes an application server, and the application server is used to execute the method according to any one of claims 16 to 27.