WO2023179150A1

WO2023179150A1 - Path switching method and system based on proximity services, medium, and program product

Info

Publication number: WO2023179150A1
Application number: PCT/CN2022/143006
Authority: WO
Inventors: 贾靖; 聂衡; 于梦晗; 邢燕霞; 毕奇
Original assignee: 中国电信股份有限公司
Priority date: 2022-03-22
Filing date: 2022-12-28
Publication date: 2023-09-28
Also published as: CN116828550A

Abstract

The present disclosure relates to a path switching method and system based on proximity services, and a computer-readable medium. The path switching method based on proximity services comprises: in the case that a first terminal and a second terminal are unable to directly communicate by means of proximity services, in response to the first terminal and the second terminal respectively establishing a first session and a second session, a first session management function network element receives session information of the first session having been associated with session information of the second session and from a first proximity service function network element; the first session management function network element establishes a connection between the first session and the second session together with a second session management function network element according to the session information of the first session having been associated with the session information of the second session, to obtain a target session; and the first session management function network element and the second session management function network element instruct the first terminal and the second terminal to respectively switch from the first session and the second session to the target session. According to the present disclosure, the service continuity of terminals can be ensured.

Description

Path conversion method, system, medium and program product based on proximity service

Cross-references to related applications

This disclosure claims priority to the Chinese patent application with application number 202210282400.0 and titled "Proximity Service-Based Path Conversion Method and System" filed on March 22, 2022, the entire content of which is incorporated by reference in its entirety. This article.

Technical field

The present disclosure relates to the field of information communications, and in particular to a proximity service-based path conversion method and system, a computer storage medium, and a computer program product.

Background technique

When terminals perform single-hop or multi-hop communication based on the PC5 interface of proximity service, there may be problems such as poor communication quality due to reasons such as the communication range exceeding the reachable range, making it impossible for terminals to communicate through ProSe (Proximity -services, proximity services) direct communication.

In the related technology, path conversion from PC5 interface communication to wireless access network communication between terminals has not yet been supported.

Contents of the invention

In the related technology, the business continuity of the terminal cannot be guaranteed.

In response to the above technical problems, the present disclosure proposes a solution that can ensure the business continuity of the terminal.

According to a first aspect of the present disclosure, a path conversion method based on proximity service is provided, including: when the first terminal and the second terminal cannot communicate directly through the proximity service, in response to the first terminal and the The second terminal establishes the first session and the second session respectively, and the first session management function network element receives the session information of the first session after correlating the session information of the second session from the first proximity service function network element, wherein, The first session management function network element and the first proximity service function network element are both connected to the first terminal; the first session management function network element is configured according to the first session information after associating the session information of the second session. The session information of the session is used together with the second session management function network element to establish a connection between the first session and the second session to obtain a target session, wherein the second session management function network element is connected to the third session. Two terminals; the first session management function network element and the second session management function network element notify the first terminal and the second terminal to respectively switch from the first session and the second session to the Describe the target session.

In some embodiments, the first session management function network element receiving the session information of the first session after correlating the session information of the second session from the first proximity service function network element includes: the first session management function network element The first data management network element receives the session information of the first session after the session information of the second session is associated with the first data management network element, and the first data management network element is connected to the first terminal.

In some embodiments, the first session management function network element receives the session information of the first session after associating the session information of the second session through the first data management network element including: the first session management function Based on the subscription operation for the session information update during the establishment process of the first session, the network element receives the session information of the first session after the session information of the second session is associated with the session information of the second session through the first data management network element, wherein , the subscription operation triggers the first data management network element to send the session information of the first session after the session information of the second session is associated with the session information of the first session to the third session. A session management function network element.

In some embodiments, the first session management function network element jointly establishes the first session and the second session management function network element with the second session management function network element based on the session information of the first session after associating the session information of the second session. The connection between the second sessions to obtain the target session includes: the first session management function network element communicates with the second session management function network element according to the session information of the first session after associating the session information of the second session. The elements jointly control the first user forwarding function network element and the second user forwarding function network element to establish a connection between the first session and the second session to obtain the target session, wherein the first user forwarding function network element The first terminal and the second terminal are respectively connected to the second user forwarding function network element.

In some embodiments, the path conversion method based on proximity service further includes: in the case that the first session management function network element and the second session management function network element are different session management function network elements, after obtaining Before the target session, the first session management function network element determines the session information from the second data management network element connected to the second terminal based on the session information of the first session after associating the session information of the second session. Describe the second session management function network element.

In some embodiments, when the first proximity service function network element and the second proximity service function network element connected to the second terminal are different proximity service function network elements, the session information of the second session It is sent to the first proximity service function network element by the second proximity service function network element connected to the second terminal.

According to a second aspect of the present disclosure, a path conversion system based on proximity services is provided, including: a first session management function network element, connected to a first terminal, and configured to: when the first terminal and the second terminal cannot pass In the case of proximity service direct communication, in response to the first terminal and the second terminal establishing a first session and a second session respectively, receiving session information associated with the second session from the first proximity service function network element. The session information of the first session after that, wherein the first proximity service function network element is connected to the first terminal; according to the session information of the first session after correlating the session information of the second session, with the second session Management function network elements jointly establish a connection between the first session and the second session to obtain a target session, wherein the second session management function network element connects to the second terminal; notifies the first terminal Convert from the first session to the target session; the second session management function network element is configured to: establish the first session and the second session with the first session management function network element function to obtain the target session; and notify the second terminal to switch from the second session to the target session.

In some embodiments, the first session management function network element is further configured to: receive, through the first data management network element, the session information of the first session after the session information of the second session is associated, and the third session management network element is configured to: A data management network element is connected to the first terminal.

In some embodiments, the first session management function network element is further configured to: receive association through the first data management network element based on the subscription operation for session information updates during the establishment process of the first session. Session information of the first session after the session information of the second session, wherein the subscription operation triggers the first data management network element to send the associated The session information of the first session after the session information of the second session is sent to the first session management function network element.

In some embodiments, the first session management function network element is further configured to: based on the session information of the first session after associating the session information of the second session, the first session management function network element and the second session management function network element jointly pass the control The first user forwarding function network element and the second user forwarding function network element establish a connection between the first session and the second session to obtain a target session, wherein the first user forwarding function network element and the third user forwarding function network element Two user forwarding function network elements are respectively connected to the first terminal and the second terminal.

In some embodiments, when the first session management function network element and the second session management function network element are different session management function network elements, the first session management function network element is further configured as : Before obtaining the target session, determine the second session management function network element from the second data management network element based on the session information of the first session after associating the session information of the second session.

In some embodiments, the proximity service-based path conversion system further includes: the first proximity service function network element, configured to: associate the session information of the second session to the session information of the first session; Send session information of the first session after associating the session information of the second session to the first session management function network element.

In some embodiments, the first proximity service function network element is further configured to: send session information of the first session after associating the session information of the second session to the first data management of the first terminal connection. Network element; wherein the proximity service-based path conversion system further includes the first data management network element configured to respond to receiving a link associated with the second session from the first proximity service function network element. The session information of the first session after the session information is associated with the session information of the first session after the session information of the second session to the first session management function network element.

In some embodiments, the first data management network element is further configured to: based on the subscription operation for session information update during the establishment process of the first session, when the session information of the first session is updated , sending session information of the first session after associating the session information of the second session to the first session management function network element.

In some embodiments, the first proximity service function network element is further configured to: receive session information of the first session from the first terminal.

In some embodiments, when the first proximity service function network element and the second proximity service function network element connected to the second terminal are different proximity service function network elements, the proximity service-based path conversion system also It includes: the second proximity service function network element is configured to send session information of the second session to the first proximity service function network element.

In some embodiments, the second proximity service function network element is further configured to: receive session information of the second session from the first terminal.

In some embodiments, the first session management function network element is further configured to: when the first session management function network element and the second session management function network element are different session management function network elements , perform a search operation on the second data management network element connected to the second terminal, the search operation is used to determine the second session management network element, wherein the proximity service-based path conversion system further includes: the third A second data management network element is configured to send network element information of the second session management function network element to the first session management function network element in response to a search operation of the first session management function network element.

According to a third aspect of the present disclosure, a proximity service-based path conversion system is provided, including: a memory; and a processor coupled to the memory, the processor being configured to, based on instructions stored in the memory, The path conversion method based on proximity service described in any of the above embodiments is executed.

According to a fourth aspect of the present disclosure, a computer-storable medium is provided, on which computer program instructions are stored. When the instructions are executed by a processor, the proximity service-based path conversion method described in any of the above embodiments is implemented.

According to a fifth aspect of the present disclosure, a computer program product is provided, including a computer program, wherein when the computer program is executed by a processor, the proximity service-based path conversion method described in any of the above embodiments is implemented.

In the above embodiment, the service continuity of the terminal can be guaranteed.

Description of the drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and, together with the description, serve to explain principles of the disclosure.

The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

FIG. 1 is a flowchart illustrating a proximity service-based path conversion method according to some embodiments of the present disclosure;

2 is a block diagram illustrating a proximity service-based path conversion system according to some embodiments of the present disclosure;

3 is a block diagram illustrating a proximity service-based path conversion system according to other embodiments of the present disclosure;

Figure 4 is a signaling diagram illustrating a proximity service-based path conversion method according to some embodiments of the present disclosure;

Figure 5 is a block diagram illustrating a computer system for implementing some embodiments of the present disclosure.

Detailed ways

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these examples do not limit the scope of the disclosure unless otherwise specifically stated.

At the same time, it should be understood that, for convenience of description, the dimensions of various parts shown in the drawings are not drawn according to actual proportional relationships.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application or uses.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered a part of the specification.

In all examples shown and discussed herein, any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values.

It should be noted that similar reference numerals and letters refer to similar items in the following figures, so that once an item is defined in one figure, it does not need further discussion in subsequent figures.

FIG. 1 is a flowchart illustrating a proximity service-based path conversion method according to some embodiments of the present disclosure.

As shown in Figure 1, the path conversion method based on proximity service includes: step S110. When the first terminal and the second terminal cannot communicate directly through the proximity service, the first session management function network element receives a message from the first proximity service function. The network element associates the session information of the first session after the session information of the second session; step S120, the first session management function network element communicates with the second session based on the session information of the first session after associating the session information of the second session. The management function network elements jointly establish a connection between the first session and the second session to obtain the target session; Step S130, the first session management function network element notifies the first terminal to switch from the first session to the target session; and Step S140, The second session management function network element notifies the second terminal to switch from the second session to the target session. The execution order of the above steps S130 and S140 is not limited and can be configured according to the actual situation.

In the above embodiment, when the first terminal and the second terminal cannot communicate directly through the proximity service, the session information of the first session established by the first terminal and the session information of the second session established by the second terminal are used. The association between the first session management function network element connected to the first terminal and the second session management function network element connected to the second terminal jointly establishes the connection between the first session and the second session to obtain the target session, so that the first terminal and The second terminals are all switched to the target session, thereby performing business interaction based on the target session. Through the above method, when the first terminal and the second terminal cannot communicate directly through the proximity service, the first terminal and the second terminal can still conduct business interaction through the target session obtained by the session connection, which can ensure the communication conversion of the terminal from the PC5 interface Continuity of services after communication to the wireless access network. The wireless access network communication mentioned here refers to NR (New Radio, New Air Interface) communication, which is the communication accessed to the network through the Uu port.

In step S110, in the case where the first terminal and the second terminal cannot communicate directly through the proximity service, in response to the first terminal and the second terminal establishing the first session and the second session respectively, the first session management function network element receives Session information from the first proximity service function network element associated with the session information of the first session subsequent to the session information of the second session. The first session management function network element and the first proximity service function network element are both connected to the first terminal.

In some embodiments, the first session management function network element receives the session information of the first session after the session information of the second session is associated with the first data management network element (Unified Data Management, UDM). The first data management network element is connected to the first terminal.

In some embodiments, the first session management function network element receives the first session after the session information associated with the second session through the first data management network element based on the subscription operation for the session information update during the establishment process of the first session. session information. The subscription operation triggers the first data management network element to send the session information of the first session that is associated with the session information of the second session to the first session management function network element when the session information of the first session is updated.

In some embodiments, the first proximity service function network element and the second proximity service function network element connected to the second terminal may be different proximity service function network elements, or may be the same proximity service function network element.

In some embodiments, in the case where the first proximity service functional network element and the second proximity service functional network element connected to the second terminal are different proximity service functional network elements, the session information of the second session is determined by the second proximity service functional network element connected to the second terminal. The second proximity service function network element sends it to the first proximity service function network element.

In other embodiments, when the first proximity service function network element and the second proximity service function network element connected to the second terminal are the same proximity service function network element, the session information of the second session and the session information of the first session The session information can be obtained from the first proximity service function network element.

In step S120, the first session management function network element jointly establishes a connection between the first session and the second session with the second session management function network element based on the session information of the first session after associating the session information of the second session. , get the target session. The second session management function network element is connected to the second terminal.

In some embodiments, the first session management function network element jointly controls the first user forwarding function network element and the second session management function network element together with the second session management function network element based on the session information of the first session after associating the session information of the second session. The two user forwarding function network elements establish a connection between the first session and the second session to obtain the target session. The first user forwarding function network element and the second user forwarding function network element are respectively connected to the first terminal and the second terminal.

In some embodiments, the first session management function network element and the second session management function network element may be the same session management function network element, or may be different session management function network elements.

In some embodiments, when the first session management function network element and the second session management function network element are different session management function network elements, before obtaining the target session, the first session management function network element associates the second session management function network element with the second session management function network element. The session information of the first session following the session information of the session determines the second session management function network element from the second data management network element connected to the second terminal. That is, the second session management function network element corresponding to the second session is searched from the second data management network element connected to the second terminal.

In some embodiments, the session management function network element A may send the session information of the first session after the session information of the second session is associated to the session management function network element B. The session management function network element A and the session management function network element B respectively control the user forwarding function network element A and the user forwarding function network element B to establish a connection between the first session and the second session.

For example, the connection between the first session and the second session is to connect the UPF (User Plane Function) network elements under the two core networks by establishing tunnels, etc., so that " The mode of "terminal-terminal" is converted to the mode of "terminal-core network-UPF-UPF-core network-terminal", where "-" indicates the data direction.

In step S130, the first session management function network element notifies the first terminal to switch from the first session to the target session.

In step S140, the second session management function network element notifies the second terminal to switch from the second session to the target session.

2 is a block diagram illustrating a proximity service-based path conversion system according to some embodiments of the present disclosure.

As shown in FIG. 2 , the proximity service-based path conversion system 2 includes a first session management function network element 21 and a second session management function network element 22 .

The first session management function network element 21 is connected to the first terminal.

The first session management function network element 21 is configured to, in the case where the first terminal and the second terminal cannot communicate directly through the proximity service, in response to the first terminal and the second terminal establishing the first session and the second session respectively, receiving from The first proximity service function network element associates the session information of the first session after the session information of the second session, for example, step S110 as shown in FIG. 1 is performed. The first proximity service function network element is connected to the first terminal.

The first session management function network element 21 is further configured to jointly establish a connection between the first session and the second session with the second session management function network element based on the session information of the first session after associating the session information of the second session. , obtain the target session, for example, perform step S120 as shown in Figure 1. The second session management function network element is connected to the second terminal.

The first session management function network element 21 is also configured to notify the first terminal to switch from the first session to the target session, for example, perform step S130 as shown in FIG. 1 .

The second session management function network element 22 is configured to establish a connection between the first session and the second session with the first session management function network element function to obtain the target session, for example, perform step S120 as shown in FIG. 1 .

The second session management function network element 22 is also configured to notify the second terminal to switch from the second session to the target session, for example, perform step S140 as shown in FIG. 1 .

In some embodiments, the first session management function network element 21 is further configured to receive, through the first data management network element, the session information of the first session after the session information of the second session is associated. The first data management network element is connected to the first terminal.

In some embodiments, the first session management function network element 21 is also configured to receive session information associated with the second session through the first data management network element based on the subscription operation for session information updates during the establishment process of the first session. Session information for the first subsequent session. The subscription operation triggers the first data management network element to send the session information of the first session that is associated with the session information of the second session to the first session management function network element when the session information of the first session is updated.

In some embodiments, the first session management function network element 21 is further configured to, together with the second session management function network element, control the forwarding of the first user according to the session information of the first session after associating the session information of the second session. The functional network element and the second user forward the functional network element, establish a connection between the first session and the second session, and obtain the target session.

In some embodiments, when the first session management function network element and the second session management function network element are different session management function network elements, the first session management function network element 21 is also configured to obtain the target session before , determine the second session management function network element from the second data management network element according to the session information of the first session after associating the session information of the second session.

In some embodiments, the proximity service-based path conversion system 2 further includes a first proximity service function network element 23 . The first proximity service function network element 23 is configured to associate the session information of the second session to the session information of the first session. The first proximity service function network element 23 is further configured to send session information of the first session subsequent to the session information associated with the second session to the first session management function network element.

In some embodiments, the first proximity service function network element 23 is further configured to send the session information of the first session after the session information associated with the second session to the first data management network element connected to the first terminal. The proximity service-based path conversion system 2 also includes a first data management network element 24 . The first data management network element 24 is configured to, in response to receiving the session information of the first session subsequent to the session information associated with the second session from the first proximity service function network element, send the session information associated with the second session subsequent to the session information. The session information of a session is sent to the first session management function network element.

In some embodiments, the first data management network element 24 is further configured to, based on the subscription operation for session information updates during the establishment process of the first session, send a message associated with the second session when the session information of the first session is updated. The session information of the first session after the session information is sent to the first session management function network element.

In some embodiments, the first proximity service function network element 23 is further configured to receive session information of the first session from the first terminal.

In some embodiments, when the first proximity service function network element and the second proximity service function network element connected to the second terminal are different proximity service function network elements, the proximity service-based path conversion system 2 further includes a second proximity service function network element. Service function network element 25. The second proximity service function network element 25 is configured to send session information of the second session to the first proximity service function network element.

In some embodiments, the second proximity service function network element 25 is further configured to receive session information of the second session from the second terminal.

In some embodiments, the first session management function network element 21 is also configured to, when the first session management function network element and the second session management function network element are different session management function network elements, connect the second terminal to The second data management network element performs a search operation. The search operation is used to determine the second session management network element.

The proximity service based path conversion system 2 also includes a second data management network element 26 . The second data management network element 26 is configured to send the network element information of the second session management function network element to the first session management function network element in response to the search operation of the first session management function network element.

3 is a block diagram illustrating a proximity service-based path conversion system according to other embodiments of the present disclosure.

As shown in FIG. 3 , the proximity service-based path conversion system 3 includes a memory 31; and a processor 32 coupled to the memory 31. The memory 31 is used to store instructions for executing corresponding embodiments of the proximity service-based path conversion system method. The processor 32 is configured to execute the proximity service-based path conversion system method in any embodiments of the present disclosure based on instructions stored in the memory 31 .

Figure 4 is a signaling diagram illustrating a proximity service-based path conversion method according to some embodiments of the present disclosure.

As shown in Figure 4, the path conversion method based on proximity service includes steps S401 to S412. In Figure 4, terminal A corresponds to proximity service function network element A, user forwarding function network element A, session management function network element A, and data management function network element A. Terminal B corresponds to proximity service function network element B, user forwarding function network element B, session management function network element B, and data management function network element B. In some embodiments, proximity service function network element A and proximity service function network element B may be the same proximity service function network element, or they may be different proximity service function network elements. In some embodiments, session management function network element A and session management function network element B may be the same session management function network element, or they may be different session management function network elements.

In step S401, terminal A and terminal B communicate through proximity service. In some embodiments, terminals A and B respectively complete their own proximity service authorization, complete proximity service discovery between terminals A and B, and establish ProSe direct communication. The terminal identity (Identity) obtained from the interaction authorization between proximity service function network elements A and B.

In step S402, terminal A and terminal B cannot communicate through proximity service. In some embodiments, due to poor communication quality between terminals A and B (for example, the communication range exceeds the reachable range), terminals A and B can no longer communicate through the PC5 interface.

In step S403a, in response to the failure of terminal A to communicate with terminal B through the proximity service, terminal A establishes the first session. In some embodiments, during the process of terminal A establishing the first session, the session management function network element A registers the session information of the first session with the data management function network element A and performs a subscription operation. The subscription operation triggers the first data management network element to send the updated session information of the first session to the first session management function network element when the session information of the first session is updated. The subscription operation is used to subscribe to updates to session modification parameters.

In step S403b, in response to the failure of terminal B to communicate with terminal A through the proximity service, terminal B establishes the first session. In some embodiments, during the process of terminal B establishing the first session, the session management function network element B registers the session information of the first session to the data management function network element B and performs a subscription operation. This subscription operation has the same function as the subscription operation in step S403a.

In step S404a, terminal A sends session information of the first session to proximity service function network element A.

In step S404b, terminal B sends session information of the first session to proximity service function network element B.

When the proximity service function network element A and the proximity service function network element B are different proximity service function network elements, step S405 is performed.

In step S405, after receiving the session information of the first session and the second session respectively, the proximity service function network elements A and B exchange their respective session information. For example, exchange the PDU (Protocol Data Unit, protocol data unit) session ID and DNN (Data Network Name, data network name) of the first session and the second session, etc. If terminals A and B are connected to the same proximity service function network element at this time, there is no need to exchange session information. The dotted box indicates that it will only be executed under specified conditions.

In step S406, after the proximity service function network element A associates the session information of the second session with the session information of the first session, it sends the session information of the first session after associating the session information of the second session to the data management function network element. A.

In step S407, the data management function network element A sends the session information of the first session after the session information of the second session is associated to the session management function network element A based on the subscription operation of step S403a. In some embodiments, the proximity service function network element cannot directly communicate with the session management function network element, and indirect communication can be performed with the help of the data management function network element.

When the session management function network element A and the session management function network element B are different session management function network elements, step S408 is performed.

In step S408, the session management function network element A searches for the session management function network element B corresponding to the second session. In some embodiments, session management function network element A searches for session management function network element B from data management network element B based on the session information of the second session. If the terminal is connected to the same session management function at this time, there is no need to search.

In step S409, the session management function network element A and the session management function network element B control the user forwarding function network elements A and B and transfer the first session based on the session information of the first session after associating the session information of the second session. The session is concatenated with the second session to obtain the target session.

In step S410a, the session management function network element A notifies the terminal A that the session data can be transmitted. For example, session management function network element A notifies terminal A through AMF (Access and Mobility Management Function) network element, AN (Access Network), etc.

In step S410b, the session management function network element B notifies the terminal B that the session data can be transmitted. For example, session management function network element B notifies terminal B through AMF (Access and Mobility Management Function) network element, AN (Access Network), etc.

In step S411, terminal A and terminal B respectively switch the session to the target session.

In step S412, after completing the session conversion, data transmission is performed between terminals A and B through the wireless access network.

As shown in Figure 5, computer system 50 may be embodied in the form of a general purpose computing device. Computer system 50 includes memory 510, a processor 520, and a bus 500 that connects various system components.

Memory 510 may include, for example, system memory, non-volatile storage media, or the like. System memory stores, for example, operating systems, applications, boot loaders, and other programs. System memory may include volatile storage media such as random access memory (RAM) and/or cache memory. The non-volatile storage medium stores, for example, instructions for executing corresponding embodiments of at least one of the proximity service-based path conversion methods. Non-volatile storage media includes but is not limited to disk storage, optical storage, flash memory, etc.

The processor 520 may be implemented as a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete hardware components such as discrete gates or transistors. accomplish. Correspondingly, each module, such as the judgment module and the determination module, can be implemented by instructions executing corresponding steps in a central processing unit (CPU) running memory, or by dedicated circuits executing corresponding steps.

Bus 500 may use any of a variety of bus structures. For example, bus structures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, and Peripheral Component Interconnect (PCI) bus.

The computer system 50 may also include an input/output interface 530, a network interface 540, a storage interface 550, and the like. These

interfaces

530, 540, 550, the memory 510 and the processor 520 may be connected through a bus 500. The input and output interface 530 can provide a connection interface for input and output devices such as a monitor, mouse, and keyboard. Network interface 540 provides a connection interface for various networked devices. The storage interface 550 provides a connection interface for external storage devices such as floppy disks, USB disks, and SD cards.

Embodiments of the present disclosure also provide a computer-storable medium on which computer program instructions are stored. When the instructions are executed by a processor, the proximity service-based path conversion method described in any of the above embodiments is implemented.

An embodiment of the present disclosure also provides a computer program product, including a computer program, wherein when the computer program is executed by a processor, the proximity service-based path conversion method described in any of the above embodiments is implemented.

Various aspects of the disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks, can be implemented by computer-readable program instructions.

These computer readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable device to produce a machine, such that execution of the instructions by the processor produces implementations in one or more blocks of the flowcharts and/or block diagrams. A device with specified functions.

Computer-readable program instructions, which may also be stored in computer-readable memory, cause the computer to operate in a specific manner to produce an article of manufacture, including implementing the functions specified in one or more blocks of the flowcharts and/or block diagrams. instructions.

The disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects.

Through the proximity service-based path conversion method and system, computer storage media, and computer program products in the above embodiments, the business continuity of the terminal is ensured.

So far, the proximity service-based path conversion method and system, the computer storage medium, and the computer program product according to the present disclosure have been described in detail. To avoid obscuring the concepts of the present disclosure, some details that are well known in the art have not been described. Based on the above description, those skilled in the art can completely understand how to implement the technical solution disclosed here.

Claims

A path conversion method based on proximity services, including:

In the case where the first terminal and the second terminal cannot communicate directly through the proximity service, in response to the first terminal and the second terminal establishing the first session and the second session respectively, the first session management function network element receives from The session information of the first session after the session information of the second session is associated with the first proximity service function network element, wherein the first session management function network element and the first proximity service function network element are both connected to The first terminal;

The first session management function network element jointly establishes the first session and the second session with the second session management function network element based on the session information of the first session after associating the session information of the second session. to obtain a target session, wherein the second session management function network element is connected to the second terminal;

The first session management function network element and the second session management function network element notify the first terminal and the second terminal to respectively switch from the first session and the second session to the target session. .
The path conversion method based on proximity service according to claim 1, wherein the first session management function network element receives the session of the first session after the session information of the second session is associated with the session information from the first proximity service function network element. Information includes:

The first session management function network element receives the session information of the first session after the session information of the second session is associated with the first data management network element, and the first data management network element is connected to the first terminal. .
The path conversion method based on proximity service according to claim 2, wherein the first session management function network element receives, through the first data management network element, the session information of the first session after the session information of the second session. Session information includes:

The first session management function network element receives the session information associated with the second session through the first data management network element based on the subscription operation for session information update during the establishment process of the first session. Session information of a session, wherein the subscription operation triggers the first data management network element to send the first session associated with the session information of the second session when the session information of the first session is updated. session information to the first session management function network element.
The path conversion method based on proximity service according to claim 1, wherein the first session management function network element communicates with the second session management function based on the session information of the first session after associating the session information of the second session. Functional network elements jointly establish a connection between the first session and the second session, and the target session includes:

The first session management function network element and the second session management function network element jointly control the first user forwarding function network element and the second user according to the session information of the first session after associating the session information of the second session. The forwarding function network element establishes a connection between the first session and the second session to obtain a target session, wherein the first user forwarding function network element and the second user forwarding function network element are respectively connected to the first user forwarding function network element. a terminal and the second terminal.
The path conversion method based on proximity service according to claim 1, further comprising:

In the case where the first session management function network element and the second session management function network element are different session management function network elements, before obtaining the target session, the first session management function network element determines The session information of the first session after the session information of the second session is determined from the second data management network element connected to the second terminal, and the second session management function network element is determined.
The path conversion method based on proximity service according to claim 1, wherein the first proximity service function network element and the second proximity service function network element connected to the second terminal are different proximity service function network elements. In this case, the session information of the second session is sent to the first proximity service function network element by the second proximity service function network element connected to the second terminal.
A proximity service-based route conversion system, including:

The first session management function network element is connected to the first terminal and is configured as:

In the case that the first terminal and the second terminal cannot communicate directly through the proximity service, in response to the first terminal and the second terminal establishing a first session and a second session respectively, receiving a message from the first proximity service function. The session information of the first session after the session information of the second session is associated with the network element, wherein the first proximity service function network element is connected to the first terminal;

According to the session information of the first session after associating the session information of the second session, the connection between the first session and the second session is jointly established with the second session management function network element to obtain the target session, where , the second session management function network element is connected to the second terminal;

Notify the first terminal to switch from the first session to the target session;

The second session management function network element is configured as:

Establish a connection between the first session and the second session with the first session management function network element function to obtain the target session;

Notify the second terminal to switch from the second session to the target session.
The path conversion system based on proximity service according to claim 7, wherein the first session management function network element is further configured to:

The session information of the first session that is associated with the session information of the second session is received through the first data management network element, which is connected to the first terminal.
The path conversion system based on proximity service according to claim 8, wherein the first session management function network element is further configured to:

Based on the subscription operation for session information update during the establishment process of the first session, receiving the session information of the first session after the session information of the second session is associated with the session information of the second session through the first data management network element,

Wherein, the subscription operation triggers the first data management network element to send the session information of the first session after the session information of the second session is associated with the session information of the first session to the The first session management function network element.
The path conversion system based on proximity service according to claim 7, wherein the first session management function network element is further configured to:

According to the session information of the first session after associating the session information of the second session, and jointly with the second session management function network element, the first user forwarding function network element and the second user forwarding function network element are controlled to establish the third user forwarding function network element. The connection between a session and the second session results in a target session, wherein the first user forwarding function network element and the second user forwarding function network element are respectively connected to the first terminal and the second terminal.
A computer-readable storage medium includes computer program instructions, wherein when the computer program instructions are executed by a processor, the proximity service-based path conversion method according to any one of claims 1-6 is implemented.
A computer program product, including a computer program, which when executed by a processor implements the proximity service-based path conversion method described in any one of claims 1 to 6.