CN118829007A - Data transmission method, device, network equipment and storage medium - Google Patents

Abstract

The embodiment of the invention discloses a data transmission method, a data transmission device, network equipment and a storage medium. The method comprises the following steps: the method comprises the steps that a first network element receives first information sent by an application function, wherein the first information at least carries a first identifier; the first network element generates a second identifier according to the first information, wherein the second identifier is used for identifying a first bearer for transmitting perception data; the first network element sends second information to the sensing device to initiate establishment of the first bearer, wherein the second information at least comprises the second identifier.

Description

Data transmission method, device, network equipment and storage medium

Technical Field

The present invention relates to the field of communication technology, and in particular to a data transmission method, device, network equipment and storage medium.

Background Art

The transmission method of perception data depends on the perception service requester. If the perception service request is executed by the user equipment (UE), the relevant transmission mechanism can rely on the traditional bearer establishment and transmission mechanism of the 3rd Generation Partnership Project (3GPP). However, when the external application function (AF) requests the perception service, there is currently a lack of design for the perception data transmission mechanism in this scenario.

Summary of the invention

In order to solve the existing technical problems, the embodiments of the present invention provide a data transmission method, an apparatus, a network device and a storage medium.

To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

In a first aspect, an embodiment of the present invention provides a data transmission method, where the method is applied to a first network element, and the method includes:

The first network element receives first information sent by the application function, where the first information carries at least a first identifier;

The first network element generates a second identifier according to the first information, where the second identifier is used to identify a first bearer used to transmit the sensing data;

The first network element sends second information to the perception device to initiate establishment of the first bearer, and the second information at least includes the second identifier.

In the above solution, the first information also includes one or more of the following information:

Perceived service type, perceived service target, and perceived service area.

In the above solution, the second information also includes the first information and/or configuration information for establishing the first bearer.

In the above scheme, the method also includes: the first network element determines the sensing device according to one or more information of the sensing service type, the sensing service target and the sensing service area.

In the above scheme, the method also includes: the first network element receives the third information sent by the perception device, and the third information is used to request to establish the first bearer; the third information includes the second identifier and fourth information, and the fourth information represents the data plane information used by the perception device to establish the first bearer.

In the above solution, the method further includes: the first network element sends fifth information to the second network element, the fifth information is used to request to establish the first bearer; the fifth information includes at least the fourth information;

The first network element receives the sixth information sent by the second network element, and sends the sixth information to the sensing device, where the sixth information indicates data plane information used by the second network element to establish the first bearer.

In the above solution, the method also includes: the first network element selects the second network element according to one or more information of the perceived service type, the perceived service target and the perceived service area.

In the above scheme, the method also includes: the first network element receives the seventh information sent by the application function, the seventh information is used to request cancellation or uninstallation of the first bearer; the seventh information includes the second identifier.

In the above scheme, the method also includes: the first network element sends eighth information to the perception device, the eighth information is used to notify the cancellation or unloading of the first bearer, and the eighth information includes the second identifier.

In the above scheme, the method also includes: the first network element receives ninth information sent by the sensing device, the ninth information is used to determine the cancellation or unloading of the first bearer, and the ninth information includes the second identifier.

In the above solution, the method further includes: the first network element sends a tenth message to the application function, and the tenth message indicates successful cancellation or uninstallation of the first bearer.

In a second aspect, an embodiment of the present invention further provides a data transmission method, which is applied to a sensing device and includes:

The sensing device receives second information sent by the first network element, where the second information includes at least a second identifier, where the second identifier is used to identify a first bearer used to transmit the sensing data; and the second identifier is generated by the first network element based on the first information carrying the first identifier;

The perception device sends third information to the first network element, where the third information is used to request establishment of the first bearer; the third information includes the second identifier and fourth information, where the fourth information represents data plane information used by the perception device to establish the first bearer.

In the above solution, the second information also includes the first information and/or configuration information for establishing the first bearer.

In the above solution, the first information also includes one or more of the following information:

Perceived service type, perceived service target, and perceived service area.

In the above scheme, the method also includes: the sensing device receives sixth information sent by the first network element, establishes the first bearer based on the sixth information, and the sixth information represents data plane information used by the second network element to establish the first bearer.

In the above scheme, the method also includes: the sensing device receives eighth information sent by the first network element, the eighth information is used to notify the cancellation or unloading of the first bearer, and the eighth information includes the second identifier.

In the above scheme, the method also includes: the perception device sends ninth information to the first network element, the ninth information is used to determine the cancellation or unloading of the first bearer, and the ninth information includes the second identifier.

In a third aspect, an embodiment of the present invention further provides a data transmission method, which is applied to a second network element, and the method includes:

The second network element receives fifth information sent by the first network element, where the fifth information is used to request establishment of a first bearer for transmitting the sensing data; the fifth information includes at least fourth information, where the fourth information indicates data plane information used by the sensing device to establish the first bearer;

The second network element sends sixth information to the first network element, where the sixth information indicates data plane information used by the second network element to establish the first bearer.

In a fourth aspect, an embodiment of the present invention further provides a data transmission device, which is applied to a first network element and includes: a first communication unit and a first processing unit; wherein:

The first communication unit is used to receive first information sent by the application function, where the first information carries at least a first identifier;

The first processing unit is used to generate a second identifier according to the first information, where the second identifier is used to identify a first bearer used to transmit the perception data;

The first communication unit is further used to send second information to the perception device to initiate establishment of the first bearer, and the second information at least includes the second identifier.

In the fifth aspect, an embodiment of the present invention also provides a data transmission device, which is applied to a perception device, and the device includes: a second communication unit, used to receive second information sent by a first network element, the second information includes at least a second identifier, and the second identifier is used to identify a first bearer used to transmit perception data; the second identifier is generated by the first network element based on the first information carrying the first identifier; and is also used to send third information to the first network element, the third information is used to request to establish the first bearer; the third information includes the second identifier and fourth information, and the fourth information represents the data plane information used by the perception device to establish the first bearer.

In the sixth aspect, an embodiment of the present invention also provides a data transmission device, which is applied to a second network element, and the device includes: a third communication unit, used to receive fifth information sent by the first network element, the fifth information is used to request to establish a first bearer for transmitting perception data; the fifth information includes at least fourth information, and the fourth information indicates data plane information used by the perception device to establish the first bearer; and is also used to send sixth information to the first network element, and the sixth information indicates data plane information used by the second network element to establish the first bearer.

In the seventh aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in the first aspect, the second aspect or the third aspect of the embodiment of the present invention.

In an eighth aspect, an embodiment of the present invention further provides a network device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the method described in the first aspect, the second aspect, or the third aspect of the embodiment of the present invention are implemented.

In a ninth aspect, an embodiment of the present invention further provides a computer program product, comprising computer program instructions, which enable a computer to execute the steps of the method described in the first aspect, the second aspect or the third aspect of the embodiment of the present invention.

The data transmission method, apparatus, network device and storage medium provided by the embodiments of the present invention include: a first network element receives a first message sent by an application function (AF), the first message carrying at least a first identifier; a second identifier is generated according to the first information, the second identifier is used to identify a first bearer for transmitting perception data; a second message is sent to a perception device to initiate establishment of the first bearer, the second information includes at least the second identifier. In this way, by adopting the technical solution of the embodiments of the present invention, the first network element can generate a second identifier for identifying the first bearer based on the first information sent by the application function, and then subsequently establish the first bearer for transmitting perception data based on the second identifier, thereby establishing a perception data transmission mechanism in the scenario where the external application function requests a perception service.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the basic architecture of the communication perception system;

FIG2 is a schematic diagram of a first flow chart of a data transmission method according to an embodiment of the present invention;

FIG3 is a second flow chart of a data transmission method according to an embodiment of the present invention;

FIG4 is a third flow chart of a data transmission method according to an embodiment of the present invention;

FIG5 is a schematic diagram of an interactive flow chart of a data transmission method according to an embodiment of the present invention;

FIG6 is a schematic diagram of a first structure of a data transmission device according to an embodiment of the present invention;

FIG7 is a second schematic diagram of the structure of the data transmission device according to an embodiment of the present invention;

FIG8 is a third schematic diagram of the structure of the data transmission device according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of the hardware structure of a network device according to an embodiment of the present invention.

DETAILED DESCRIPTION

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

The technical solution of the embodiment of the present invention can be applied to various communication systems, for example: a global system of mobile communication (GSM) system, a long term evolution (LTE) system or a 5G system, etc. Optionally, the 5G system or 5G network may also be referred to as a new radio (NR) system or NR network.

Exemplarily, the communication system applied in the embodiment of the present invention may include a network device and a terminal device (also referred to as a terminal, a communication terminal, etc.); the network device may be a device that communicates with the terminal device. Among them, the network device can provide communication coverage within a certain area, and can communicate with terminals located in the area. Optionally, the network device may be a base station in each communication system, such as an evolved base station (eNB, Evolutional Node B) in an LTE system, and a base station (gNB) in a 5G system or an NR system.

It should be understood that the device with communication function in the network/system in the embodiment of the present application can be referred to as a communication device. The communication device may include a network device and a terminal with communication function, and the network device and the terminal device may be the specific devices described above, which will not be described here; the communication device may also include other devices in the communication system, such as a network controller, a mobile management entity and other network entities, which are not limited in the embodiment of the present invention.

It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and/or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.

The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and need not be used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable in appropriate circumstances, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

Figure 1 is a schematic diagram of the basic architecture of the communication perception system; as shown in Figure 1, the network element responsible for the processing of perception services can be called a perception function (SF). The basic functions of SF may include: network elements support perception authorization, perception control, data processing and result output. Specifically, SF can perform perception service analysis and provide perception results based on the received perception requirements. The deployment form of the perception network element can be independent deployment or co-deployed with the 5G core network (5GC, 5G Core) network element (such as access and mobility management function (AMF, Access and Mobility Management Function) or positioning management function (LMF, Location Management Function), etc.). At the same time, according to the deployment requirements, SF can exist in two forms: perception control plane function (SF-C) and perception user plane function (SF-U).

In general, there are two ways to transmit perception data/perception results: lightweight perception data or perception results can be transmitted via the control plane (Radio Access Network (RAN)-AMF-SF); but for larger amounts of data, they need to be transmitted via the user plane (RAN-SF or RAN-User Plane Function (UPF)-SF). The main body of the perception task is coordinated by the base station and the terminal side; that is, the base station can send and receive signals to achieve the initial acquisition of perception information, or the base station and the terminal can collaborate to complete the transmission and reception of signals, thereby achieving the acquisition of perception signals. The acquired perception signals are processed by the base station to generate perception data or perception results, and the SF can process the perception data to generate perception information.

At least based on the above system architecture, the following embodiments of the present invention are proposed.

An embodiment of the present invention provides a data transmission method. FIG2 is a flow chart of the data transmission method according to an embodiment of the present invention; as shown in FIG2 , the method includes:

Step 101: A first network element receives first information sent by an application function, where the first information carries at least a first identifier;

Step 102: The first network element generates a second identifier according to the first information, where the second identifier is used to identify a first bearer used to transmit the sensing data;

Step 103: The first network element sends second information to the sensing device to initiate establishment of the first bearer, where the second information at least includes the second identifier.

In this embodiment, the first network element is a perception control plane function, and the second network element is a perception user plane function, that is, the combination of the first network element and the second network element realizes the functional network element responsible for perception service processing. In some optional embodiments, the first network element and the second network element can be combined, that is, the first network element and the second network element are arranged in the network element device as a partial functional combination of the functional network element responsible for perception service processing. In other optional embodiments, the first network element and the second network element can be deployed separately, that is, the first network element can be deployed in one network element device, and the second network element can be deployed in another network element device.

In some optional embodiments, the second network element may be deployed according to its service area. The first network element may correspond to one or more second network elements. In the actual perception service process, the first network element may find the corresponding second network element by perceiving the location corresponding to the service, thereby establishing a bearer related to the second network element.

In this embodiment, when there is a perception service, the application function (AF) may send a perception request, a perception service request or a perception service request to the first network element to initiate a perception service process; the perception request or the perception service request or the perception service request is equivalent to the first information. The first information carries at least a first identifier, which is an application identifier, and the first identifier is used to identify an application or an application type.

In this embodiment, the first network element generates a second identifier based on a trigger of the first information. Specifically, the second identifier can be generated based on the first identifier, and the second identifier is used to identify the first bearer used to transmit the perception data.

In some optional embodiments, the first network element may save or associate the first identifier and the second identifier for subsequent call billing, etc.

In some optional embodiments, the second information also includes the first information and/or configuration information for establishing the first bearer.

In this embodiment, the second information sent by the first network element to the perception device includes at least the second identifier, and may also include the first information and/or configuration information for establishing the first bearer, where the configuration information is relevant configuration information about the first bearer.

In some optional embodiments, the first information further includes one or more of the following information: a sensing service type, a sensing service target, and a sensing service area.

In some optional embodiments, the method further includes: the first network element determines the sensing device according to one or more information of the sensing service type, the sensing service target and the sensing service area.

In this embodiment, the sensing device may include a wireless access network device as a 3GPP device, such as a base station; and/or, the sensing device may also include a non-3GPP device connected to the wireless access network device. In the embodiment of the present invention, any non-3GPP device that can perform a sensing task may be used as a sensing device.

In this embodiment, the first network element sends the second information to the perception device to initiate the establishment of the first bearer. As an implementation method, the first network element may directly send the second information to the perception device. As another implementation method, the first network element may also send the second information to the perception device through a network function. Exemplarily, the network function may specifically be AMF, then the first network element may first send the second information to AMF, and then AMF may send the second information to the perception device.

In some optional embodiments of the present invention, the method also includes: the first network element receives third information sent by the perception device, and the third information is used to request to establish the first bearer; the third information includes the second identifier and fourth information, and the fourth information represents the data plane information used by the perception device to establish the first bearer.

In this embodiment, after the perception device receives the second information, the perception device sends the third information to the first network element to request the establishment of the first bearer; wherein the third information may also include data plane information of the perception device. The data plane information specifically indicates endpoint information for perception data transmission. Exemplarily, the fourth information may include interface information, port information, IP address information, data transmission tunnel information (such as tunnel ID), etc. used by the perception device to establish the first bearer.

In some optional embodiments, the method also includes: the first network element sends fifth information to the second network element, the fifth information is used to request establishment of the first bearer; the fifth information includes at least the fourth information; the first network element receives sixth information sent by the second network element, and sends the sixth information to the sensing device, the sixth information indicating data plane information used by the second network element to establish the first bearer.

In this embodiment, the first network element sends the data plane information (the fourth information) obtained by the perception device for establishing the first bearer to the second network element, and obtains the data plane information sent by the second network element for the second network element to establish the first bearer, and transmits the data plane information used by the second network element to establish the first bearer to the perception device, so that the perception device and the second network element can obtain each other's data plane information for establishing the first bearer, thereby establishing the first bearer between the perception device and the second network element. Furthermore, the perception device can transmit perception data to the second network element through the first bearer. Optionally, in addition to the fourth information, the fifth information may also include the second identifier for identifying the first bearer. Correspondingly, the sixth information may also include the second identifier.

In some optional embodiments, the method further includes: the first network element selecting the second network element according to one or more information of the sensing service type, the sensing service target and the sensing service area.

In this embodiment, the first network element may have a corresponding relationship or an associated relationship with one or more second network elements; the first network element may select the second network element according to one or more information of the perceived service type, the perceived service target, and the perceived service area. As an implementation method, the first network element may select the second network element by static configuration. Exemplarily, a mapping relationship table may be pre-configured in the first network element, and the mapping relationship table may be searched by one or more information of the perceived service type, the perceived service target, and the perceived service area to determine the corresponding second network element. As another implementation method, the first network element may determine the second network element by querying other network functions. Among them, the other network function may be, for example, a network storage function (NRF, Network Repository Function). The first network element may send a query request to the NRF, and the query request may include one or more information of the perceived service type, the perceived service target, and the perceived service area; after receiving the query request, the NRF searches for the second network element corresponding to the one or more information of the perceived service type, the perceived service target, and the perceived service area, and returns a query response to the first network element, and the query response may include relevant information of the second network element.

In some optional embodiments of the present invention, the method further includes: the first network element receives seventh information sent by the application function, the seventh information is used to request cancellation or uninstallation of the first bearer; and the seventh information includes the second identifier.

In some optional embodiments, the method further includes: the first network element sends eighth information to the sensing device, the eighth information is used to notify the cancellation or unloading of the first bearer, and the eighth information includes the second identifier.

In some optional embodiments, the method may further include: the first network element sends eleventh information to the second network element, the eleventh information is used to notify cancellation or unloading of the first bearer, and the eleventh information includes the second identifier.

In some optional embodiments, the method further includes: the first network element receives ninth information sent by the sensing device, the ninth information is used to determine cancellation or unloading of the first bearer, and the ninth information includes the second identifier.

In some optional embodiments, the method further includes: the first network element sends a tenth message to the application function, and the tenth message indicates successful cancellation or uninstallation of the first bearer.

Based on the above embodiment, the embodiment of the present invention further provides a data transmission method. FIG3 is a flow chart of the data transmission method according to the embodiment of the present invention; as shown in FIG3 , the method includes:

Step 201: The sensing device receives second information sent by a first network element, where the second information includes at least a second identifier, where the second identifier is used to identify a first bearer used to transmit sensing data; the second identifier is generated by the first network element based on the first information carrying the first identifier;

Step 202: The perception device sends third information to the first network element, where the third information is used to request establishment of the first bearer; the third information includes the second identifier and fourth information, where the fourth information represents data plane information used by the perception device to establish the first bearer.

In this embodiment, the sensing device may include a wireless access network device as a 3GPP device, such as a base station; and/or, the sensing device may also include a non-3GPP device connected to the wireless access network device. In the embodiment of the present invention, any non-3GPP device that can perform a sensing task may be used as a sensing device.

In this embodiment, the perception device receives the second information sent by the first network element to initiate the establishment of the first bearer. As an implementation method, the perception device can directly receive the second information sent by the first network element. As another implementation method, the perception device can also receive the second information sent by the first network element through a network function. Exemplarily, the network function can specifically be AMF, then the first network element can first send the second information to AMF, and then AMF sends the second information to the perception device.

In some optional embodiments, the second information also includes the first information and/or configuration information for establishing the first bearer.

In some optional embodiments, the first information further includes one or more of the following information: a sensing service type, a sensing service target, and a sensing service area.

In this embodiment, after the perception device receives the second information, the perception device sends the third information to the first network element to request the establishment of the first bearer; wherein the third information may also include data plane information of the perception device. The data plane information specifically indicates endpoint information for perception data transmission. Exemplarily, the fourth information may include interface information, port information, IP address information, data transmission tunnel information (such as tunnel ID), etc. used by the perception device to establish the first bearer.

In some optional embodiments, the method further includes: the sensing device receives sixth information sent by the first network element, and establishes the first bearer based on the sixth information, wherein the sixth information represents data plane information used by the second network element to establish the first bearer.

In this embodiment, the first network element sends the data plane information (the fourth information) obtained by the perception device for establishing the first bearer to the second network element, and obtains the data plane information sent by the second network element for the second network element to establish the first bearer, and transmits the data plane information used by the second network element to establish the first bearer to the perception device, so that the perception device and the second network element can obtain each other's data plane information for establishing the first bearer, thereby establishing the first bearer between the perception device and the second network element. Furthermore, the perception device can transmit perception data to the second network element through the first bearer. Optionally, the sixth information may also include the second identifier for identifying the first bearer.

In some optional embodiments of the present invention, the method further includes: the sensing device receives eighth information sent by the first network element, the eighth information is used to notify cancellation or unloading of the first bearer, and the eighth information includes the second identifier.

In some optional embodiments, the method further includes: the sensing device sends ninth information to the first network element, the ninth information is used to determine cancellation or unloading of the first bearer, and the ninth information includes the second identifier.

In this embodiment, after the perception device receives the eighth information sent by the first network element, it cancels or uninstalls the first bearer associated with the second identifier carried by the eighth information; and sends ninth information to the first network element, and the ninth information is used to determine the cancellation or uninstallation of the first bearer.

Based on the above embodiments, the embodiment of the present invention further provides a data transmission method. FIG4 is a flow chart of the data transmission method according to the embodiment of the present invention; as shown in FIG4 , the method includes:

Step 301: The second network element receives fifth information sent by the first network element, where the fifth information is used to request to establish a first bearer for transmitting perception data; the fifth information includes at least fourth information, where the fourth information indicates data plane information used by the perception device to establish the first bearer;

Step 302: The second network element sends sixth information to the first network element, where the sixth information indicates data plane information used by the second network element to establish the first bearer.

In this embodiment, the first network element is a perception control plane function, and the second network element is a perception user plane function, that is, the combination of the first network element and the second network element realizes the functional network element responsible for perception service processing. In some optional embodiments, the first network element and the second network element can be combined, that is, the first network element and the second network element are arranged in the network element device as a partial functional combination of the functional network element responsible for perception service processing. In other optional embodiments, the first network element and the second network element can be deployed separately, that is, the first network element can be deployed in one network element device, and the second network element can be deployed in another network element device.

In some optional embodiments, the second network element may be deployed according to its service area. The first network element may correspond to one or more second network elements. In the actual perception service process, the first network element may find the corresponding second network element by perceiving the location corresponding to the service, thereby establishing a bearer related to the second network element.

In this embodiment, the first network element sends the data plane information (the fourth information) obtained by the perception device for establishing the first bearer to the second network element, and obtains the data plane information sent by the second network element for the second network element to establish the first bearer, and transmits the data plane information used by the second network element to establish the first bearer to the perception device, so that the perception device and the second network element can obtain each other's data plane information for establishing the first bearer, thereby establishing the first bearer between the perception device and the second network element. Furthermore, the perception device can transmit perception data to the second network element through the first bearer. Optionally, in addition to the fourth information, the fifth information may also include the second identifier for identifying the first bearer. Correspondingly, the sixth information may also include the second identifier.

In some optional embodiments, the method may further include: the second network element receives eleventh information sent by the first network element, the eleventh information is used to notify the cancellation or uninstallation of the first bearer, and the eleventh information includes the second identifier. Optionally, the second network element sends twelfth information to the first network element, the twelfth information is used to determine the cancellation or uninstallation of the first bearer, and the twelfth information includes the second identifier.

In this embodiment, after the second network element receives the eleventh information sent by the first network element, it cancels or unloads the first bearer associated with the second identifier based on the second identifier carried by the eleventh information; and sends the twelfth information to the first network element, and the twelfth information is used to determine the cancellation or unloading of the first bearer.

By adopting the technical solution of the embodiment of the present invention, the first network element can generate a second identifier for identifying the first bearer based on the first information sent by the application function, and then subsequently establish a first bearer for transmitting perception data based on the second identifier, thereby establishing a perception data transmission mechanism in the scenario where the external application function requests a perception service.

The embodiment of the present invention is described in detail below with reference to a specific example. In this example, the first network element is SF-C, the second network element is SF-U, and the sensing device is NR.

FIG5 is a schematic diagram of an interactive flow of a data transmission method according to an embodiment of the present invention; as shown in FIG5 , the method includes:

Step 401: The AF sends a perception request to the SF-C, wherein the perception request carries an application identifier and may also carry a perception service type and one or more information of the perception service type.

Here, the perception request may be equivalent to the first information in the above embodiment. The application identifier may be equivalent to the first identifier in the above embodiment. In other optional embodiments, the perception request may also be called a perception service request, which is used to request a perception service or request to perform a perception task.

The sensing service type may include information such as a sensing service target and/or a sensing service area.

Step 402: The SF-C generates a bearer-specific identifier according to the sensing request and the application identifier of the AF, and determines the sensing device that performs the sensing task according to information such as the sensing service type and/or the sensing target type.

Here, the bearer-specific identifier may be equivalent to the second identifier in the above embodiment. The bearer-specific identifier is used to identify a perceptual data transmission bearer (equivalent to the first bearer in the above embodiment).

Here, SF-C can generate a bearer-specific identifier based on the perception request and the application identifier of AF; specifically, the bearer-specific identifier can be generated based on the application identifier of AF according to the triggering of the perception request.

The sensing device may be a base station or a non-3GPP device directly connected to the base station.

Step 403: The SF-C sends second information for initiating establishment of a perception data transmission bearer to the perception device, which carries at least a bearer-specific identifier and may also carry a perception request and/or perception configuration information, where the perception configuration information is relevant configuration information of the perception data transmission bearer.

Here, SF-C can directly send the second information to the base station or a non-3GPP device directly connected to the base station (i.e., a perception device), or can also send the second information to the base station or a non-3GPP device directly connected to the base station (i.e., a perception device) through AMF.

Step 404: the perception device receives the second information, and sends a perception data bearer establishment request message to the SF-C. The request message carries the perception session identifier and data plane information of the perception device.

Here, the data plane information of the perception device includes, for example, interface information, port information, IP address information, data transmission tunnel information (such as tunnel ID), etc. for transmitting perception data.

Step 405 to step 406: SF-C selects (based on static configuration or dynamic query) SF-U and sends a bearer establishment request message, which is used to request the establishment of a perception data transmission bearer. The request message carries the data plane information of the perception device; SF-U receives the bearer establishment request message and returns the data plane information of SF-U.

Here, the data plane information of SF-U includes, for example, interface information, port information, IP address information, data transmission tunnel information (such as tunnel ID), etc. used to transmit perception data.

Step 407: SF-C sends a perception data bearer establishment response message to the perception device. The response message is used to confirm the establishment of the perception session and carries the data plane information of SF-U.

Step 408: The base station establishes a perception data transmission bearer with the SF-U.

Step 409: The sensing device performs the sensing task and sends the sensing data to the SF-U via the sensing data transmission bearer.

Step 410: SF-U performs the collection and analysis of the sensing data. The sensing function (SF-C/SF-U) sends the sensing result to AF.

Here, SF-U may directly send the perception result to AF, or SF-U may send the perception result to SF-C, and then SF-C may send the perception result to AF.

Step 411: AF sends a perception service cancellation request to SF-C, and SF-C sends a notification to cancel the perception data transmission bearer to the perception device; wherein the request and notification may carry a bearer-specific identifier.

Here, the perception service cancellation request may be equivalent to the seventh information in the above embodiment; the notification of canceling the perception data transmission bearer may be equivalent to the eighth information in the above embodiment.

Step 412: The sensing device sends a bearer cancellation confirmation message to the SF-C, where the message carries a bearer-specific identifier and the like.

Here, the confirmation to cancel the bearer message may be equivalent to the ninth information in the above embodiment.

Step 413: SF-C sends a message indicating that the service is successfully cancelled to AF.

Here, the perception service cancellation success message may be equivalent to the tenth information in the above embodiment.

Based on the above embodiments, the embodiment of the present invention further provides a data transmission device, which is applied to a first network element. FIG6 is a schematic diagram of a structure of a data transmission device according to an embodiment of the present invention; as shown in FIG6 , the device includes: a first communication unit 11 and a first processing unit 12; wherein,

The first communication unit 11 is used to receive first information sent by the application function, where the first information carries at least a first identifier;

The first processing unit 12 is used to generate a second identifier according to the first information, where the second identifier is used to identify a first bearer used to transmit the perception data;

The first communication unit 11 is further used to send second information to the sensing device to initiate establishment of the first bearer, where the second information at least includes the second identifier.

In some optional embodiments of the present invention, the first information further includes one or more of the following information: a sensing service type, a sensing service target, and a sensing service area.

In some optional embodiments of the present invention, the second information also includes the first information and/or configuration information for establishing the first bearer.

In some optional embodiments of the present invention, the first processing unit 12 is further configured to determine the sensing device according to one or more information of a sensing service type, a sensing service target and a sensing service area.

In some optional embodiments of the present invention, the first communication unit 11 is also used to receive third information sent by the perception device, and the third information is used to request to establish the first bearer; the third information includes the second identifier and fourth information, and the fourth information represents the data plane information used by the perception device to establish the first bearer.

In some optional embodiments of the present invention, the first communication unit 11 is also used to send fifth information to the second network element, wherein the fifth information is used to request establishment of the first bearer; the fifth information includes at least the fourth information; and is also used to receive sixth information sent by the second network element, and send the sixth information to the sensing device, wherein the sixth information indicates data plane information used by the second network element to establish the first bearer.

In some optional embodiments of the present invention, the first processing unit 12 is further configured to select the second network element according to one or more information of a sensing service type, a sensing service target and a sensing service area.

In some optional embodiments of the present invention, the first communication unit 11 is further used to receive seventh information sent by the application function, where the seventh information is used to request cancellation or uninstallation of the first bearer; and the seventh information includes the second identifier.

In some optional embodiments of the present invention, the first communication unit 11 is further used to send eighth information to the sensing device, where the eighth information is used to notify the cancellation or uninstallation of the first bearer, and the eighth information includes the second identifier.

In some optional embodiments of the present invention, the first communication unit 11 is further used to receive ninth information sent by the sensing device, where the ninth information is used to determine cancellation or uninstallation of the first bearer, and the ninth information includes the second identifier.

In some optional embodiments of the present invention, the first communication unit 11 is further configured to send tenth information to the application function, where the tenth information indicates successful cancellation or uninstallation of the first bearer.

In an embodiment of the present invention, the first processing unit 12 in the device can be implemented by a central processing unit (CPU), a digital signal processor (DSP), a microcontroller unit (MCU) or a programmable gate array (FPGA) in actual applications; the first communication unit 11 in the device can be implemented by a communication module (including: basic communication kit, operating system, communication module, standardized interface and protocol, etc.) and a transceiver antenna in actual applications.

An embodiment of the present invention also provides a data transmission device, which is applied to a perception device. Figure 7 is a second schematic diagram of the composition structure of the data transmission device of an embodiment of the present invention; as shown in Figure 7, the device includes: a second communication unit 21, which is used to receive second information sent by a first network element, the second information at least includes a second identifier, and the second identifier is used to identify a first bearer used to transmit perception data; the second identifier is generated by the first network element based on the first information carrying the first identifier; and is also used to send third information to the first network element, and the third information is used to request to establish the first bearer; the third information includes the second identifier and fourth information, and the fourth information represents the data plane information used by the perception device to establish the first bearer.

In some optional embodiments of the present invention, the second information also includes the first information and/or configuration information for establishing the first bearer.

In some optional embodiments of the present invention, the first information further includes one or more of the following information: a sensing service type, a sensing service target, and a sensing service area.

In some optional embodiments of the present invention, the second communication unit 21 is further used to receive sixth information sent by the first network element, and establish the first bearer based on the sixth information, where the sixth information represents data plane information used by the second network element to establish the first bearer.

In some optional embodiments of the present invention, the second communication unit 21 is further used to receive eighth information sent by the first network element, where the eighth information is used to notify cancellation or uninstallation of the first bearer, and the eighth information includes the second identifier.

In some optional embodiments of the present invention, the second communication unit 21 is further used to send ninth information to the first network element, where the ninth information is used to determine the cancellation or uninstallation of the first bearer, and the ninth information includes the second identifier.

In the embodiment of the present invention, the second communication unit 21 in the device can be implemented through a communication module (including: basic communication kit, operating system, communication module, standardized interface and protocol, etc.) and a transceiver antenna in actual application.

The embodiment of the present invention also provides a data transmission device, which is applied to a second network element. Figure 8 is a schematic diagram of the third composition structure of the data transmission device of the embodiment of the present invention; as shown in Figure 8, the device includes: a third communication unit 31, which is used to receive the fifth information sent by the first network element, and the fifth information is used to request the establishment of a first bearer for transmitting perception data; the fifth information includes at least fourth information, and the fourth information indicates the data plane information used by the perception device to establish the first bearer; and is also used to send sixth information to the first network element, and the sixth information indicates the data plane information used by the second network element to establish the first bearer.

In the embodiment of the present invention, the third communication unit 31 in the device can be implemented in actual application through a communication module (including: basic communication kit, operating system, communication module, standardized interface and protocol, etc.) and a transceiver antenna.

It should be noted that: the data transmission device provided in the above embodiment only uses the division of the above program modules as an example when performing data transmission. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the data transmission device provided in the above embodiment and the data transmission method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

The embodiment of the present invention further provides a network device, which may be a first network element, a second network element, or a sensing device. FIG9 is a schematic diagram of the hardware composition structure of the network device according to the embodiment of the present invention. As shown in FIG9 , the network device includes a memory 42, a processor 41, and a computer program stored in the memory 42 and executable on the processor 41. When the processor 41 executes the program, the steps of the data transmission method applied to the first network element, the second network element, or the sensing device according to the embodiment of the present invention are implemented.

Optionally, the network device may further include at least one network interface 43. The various components in the network device are coupled together via a bus system 44. It is understood that the bus system 44 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 44 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, various buses are labeled as bus system 44 in FIG. 9.

It can be understood that the memory 42 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (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 (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), direct memory bus random access memory (DRRAM). The memory 42 described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

The method disclosed in the above embodiment of the present invention can be applied to the processor 41, or implemented by the processor 41. The processor 41 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 41 or the instruction in the form of software. The above processor 41 can be a general-purpose processor, a DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 41 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general-purpose processor can be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 42. The processor 41 reads the information in the memory 42 and completes the steps of the above method in combination with its hardware.

In an exemplary embodiment, the network device may be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD), FPGA, general purpose processor, controller, MCU, microprocessor, or other electronic components to execute the aforementioned method.

In an exemplary embodiment, the present invention also provides a computer-readable storage medium, such as a memory 42 including a computer program, and the computer program can be executed by a processor 41 of a network device to complete the steps of the aforementioned method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM; or it can be various devices including one or any combination of the above memories.

The computer-readable storage medium provided by an embodiment of the present invention stores a computer program thereon, which, when executed by a processor, implements the steps of the data transmission method applied by the embodiment of the present invention to a first network element, a second network element or a perception device.

The embodiment of the present application also provides a computer program product, including a computer program, which can be executed by a computer device (such as a processor 41 of a network device) to complete the steps of any of the aforementioned data transmission methods.

The methods disclosed in several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

The features disclosed in several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

The features disclosed in several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. 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 can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

The units described above as separate components may or may not be physically separated, and the components displayed 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 scheme of this embodiment.

In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM disks or optical disks.

Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

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

Claims (24)

1. A method of data transmission, the method being applied to a first network element, the method comprising:

the first network element receives first information sent by an application function, wherein the first information at least carries a first identifier;

The first network element generates a second identifier according to the first information, wherein the second identifier is used for identifying a first bearer for transmitting perception data;

The first network element sends second information to the sensing device to initiate establishment of the first bearer, wherein the second information at least comprises the second identifier.

2. The method of claim 1, wherein the first information further comprises one or more of the following:

a perceived service type, a perceived service target, a perceived service area.

3. The method according to claim 1, wherein the second information further comprises the first information and/or configuration information for establishing the first bearer.

4. The method according to claim 2, wherein the method further comprises:

The first network element determines the sensing equipment according to one or more of the sensing service type, the sensing service target and the sensing service area.

5. The method according to claim 1, wherein the method further comprises:

The first network element receives third information sent by the sensing equipment, wherein the third information is used for requesting to establish the first bearing; the third information comprises the second identifier and fourth information, and the fourth information represents data plane information used by the sensing equipment for establishing the first bearer.

6. The method of claim 5, wherein the method further comprises:

the first network element sends fifth information to the second network element, wherein the fifth information is used for requesting to establish the first bearer; the fifth information at least comprises the fourth information;

The first network element receives sixth information sent by the second network element, and sends the sixth information to the sensing equipment, wherein the sixth information represents data plane information used by the second network element for establishing the first bearer.

7. The method of claim 6, wherein the method further comprises:

The first network element selects the second network element according to one or more of the sensing service type, the sensing service target and the sensing service area.

8. The method according to claim 1 or 2, characterized in that the method further comprises:

The first network element receives seventh information sent by the application function, wherein the seventh information is used for requesting to cancel or unload the first bearer; the seventh information includes the second identification.

9. The method of claim 8, wherein the method further comprises:

the first network element sends eighth information to the sensing device, the eighth information is used for notifying to cancel or unload the first bearer, and the eighth information comprises the second identifier.

10. The method according to claim 9, wherein the method further comprises:

the first network element receives ninth information sent by the sensing device, where the ninth information is used to determine to cancel or offload the first bearer, and the ninth information includes the second identifier.

11. The method according to claim 10, wherein the method further comprises:

And the first network element sends tenth information to the application function, wherein the tenth information indicates that the first bearer is successfully cancelled or unloaded.

12. A data transmission method, wherein the method is applied to a sensing device, the method comprising:

the sensing equipment receives second information sent by the first network element, wherein the second information at least comprises a second identifier, and the second identifier is used for identifying a first bearer for transmitting sensing data; the second identifier is generated by the first network element based on first information carrying the first identifier;

the sensing device sends third information to the first network element, wherein the third information is used for requesting to establish the first bearer; the third information comprises the second identifier and fourth information, and the fourth information represents data plane information used by the sensing equipment for establishing the first bearer.

13. The method according to claim 12, wherein the second information further comprises the first information and/or configuration information for establishing the first bearer.

14. The method of claim 12 or 13, wherein the first information further comprises one or more of the following:

a perceived service type, a perceived service target, a perceived service area.

15. The method according to claim 12, wherein the method further comprises:

the sensing device receives sixth information sent by the first network element, the first bearer is established based on the sixth information, and the sixth information represents data plane information used by the second network element for establishing the first bearer.

16. The method according to claim 12, wherein the method further comprises:

The sensing device receives eighth information sent by the first network element, where the eighth information is used to notify to cancel or unload the first bearer, and the eighth information includes the second identifier.

17. The method of claim 16, wherein the method further comprises:

and the sensing equipment sends ninth information to the first network element, wherein the ninth information is used for determining to cancel or unload the first bearer, and the ninth information comprises the second identifier.

18. A method of data transmission, the method being applied to a second network element, the method comprising:

The second network element receives fifth information sent by the first network element, wherein the fifth information is used for requesting to establish a first bearer for transmitting perception data; the fifth information at least comprises fourth information, and the fourth information represents data plane information used for establishing the first bearing by the sensing equipment;

And the second network element sends sixth information to the first network element, wherein the sixth information represents data plane information used by the second network element for establishing the first bearer.

19. A data transmission apparatus, the apparatus being applied to a first network element, the apparatus comprising: a first communication unit and a first processing unit; wherein,

The first communication unit is used for receiving first information sent by the application function, and the first information at least carries a first identifier;

the first processing unit is used for generating a second identifier according to the first information, wherein the second identifier is used for identifying a first bearer used for transmitting the perception data;

The first communication unit is further configured to send second information to the sensing device, so as to initiate establishment of the first bearer, where the second information includes at least the second identifier.

20. A data transmission apparatus, the apparatus being applied to a sensing device, the apparatus comprising: the second communication unit is used for receiving second information sent by the first network element, wherein the second information at least comprises a second identifier, and the second identifier is used for identifying a first bearer used for transmitting the perception data; the second identifier is generated by the first network element based on first information carrying the first identifier; the method further comprises the steps of sending third information to the first network element, wherein the third information is used for requesting to establish the first bearer; the third information comprises the second identifier and fourth information, and the fourth information represents data plane information used by the sensing equipment for establishing the first bearer.

21. A data transmission apparatus, the apparatus being applied to a second network element, the apparatus comprising: a third communication unit, configured to receive fifth information sent by the first network element, where the fifth information is used to request to establish a first bearer for transmitting the sensing data; the fifth information at least comprises fourth information, and the fourth information represents data plane information used for establishing the first bearing by the sensing equipment; and the method is also used for sending sixth information to the first network element, wherein the sixth information represents data plane information used by the second network element for establishing the first bearer.

22. A computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the method according to any of claims 1 to 11; or the program when executed by a processor performs the steps of the method of any one of claims 12 to 17; or which when executed by a processor performs the steps of the method of claim 18.

23. A network device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method of any one of claims 1 to 11 when the program is executed; or the processor, when executing the program, implements the steps of the method of any one of claims 12 to 17; or the processor, when executing the program, implements the steps of the method of claim 18.

24. A computer program product comprising computer program instructions for causing a computer to perform the steps of the method of any one of claims 1 to 11; or the computer program instructions cause a computer to perform the steps of the method of any one of claims 12 to 17; or the computer program instructions cause a computer to perform the steps of the method of claim 18.