CN115603930A

CN115603930A - Method, device and storage medium for accessing system

Info

Publication number: CN115603930A
Application number: CN202110776838.XA
Authority: CN
Inventors: 朱磊; 唐小勇; 罗柯; 游正朋
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Chengdu ICT Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Chengdu ICT Co Ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2023-01-13

Abstract

The application discloses a method and a device for accessing a system and a storage medium. The method comprises the following steps: receiving a first request of a UE; the first request is for requesting access to a second system; forwarding, by a first device of the first system direct connection, the first request to a second device of the second system direct connection, so that the second system returns a first response to the UE based on the first request forwarded by the second device; the first response carries a DNN of the second system for accessing the second system.

Description

Method, device and storage medium for accessing system

Technical Field

The present application relates to the field of communications, and in particular, to a method, an apparatus, and a storage medium for accessing a system.

Background

Mobile Edge Computing (MEC) is an IT platform with wireless network information application program interface interaction capability and cloud Computing capability, and the MEC plays an important role in the development of 5G communication technology. Currently, in an architecture in which a 5G core network (5 GC,5th Generation core) is combined with a MEC, when a User Equipment (UE) accesses a Mobile Edge Platform (MEP) in the MEC through the 5GC, an access request of the UE is forwarded to the MEP through a User Plane Function (UPF) in the 5 GC. When the UE accesses MEPs in different MECs, the UE needs to carry Data Network names (DNNs, data Network names) of the different MECs to access the MEPs. The UE cannot automatically obtain the DNN of each MEC, and can only access different MEPs by manually configuring the DNN of the MEC that needs to be accessed, that is, in the related art, it is inefficient for the UE to obtain DNNs corresponding to other MECs.

Disclosure of Invention

In view of this, embodiments of the present application mainly aim to provide a method, an apparatus, and a storage medium for accessing a system, so as to solve the problem in the related art that efficiency of a UE for acquiring DNNs corresponding to other MECs is low.

In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

the embodiment of the application provides a method for accessing a system, which is applied to a first system and comprises the following steps:

receiving a first request of a UE; the first request is for access to a second system;

forwarding, by a first device directly connected to the first system, the first request to a second device directly connected to the second system, so that the second system returns a first response to the UE based on the first request forwarded by the second device; the first response carries a DNN of the second system for accessing the second system.

In the above solution, the forwarding the first request to the second device directly connected to the second system through the first device directly connected to the first system, where the forwarding the first request carries an identifier of the second system, includes:

acquiring the identifier of the second system carried in the first request;

forwarding, by the first device, the first request to the second device based on the obtained identity of the second system.

In the above solution, before the forwarding, by the first device directly connected to the first system, the first request to the second device directly connected to the second system, the method further includes:

sending first configuration information to the first equipment so that the first equipment establishes connection with the second equipment based on the first configuration information; wherein,

the first configuration information represents the communication configuration corresponding to the second system.

In the foregoing solution, the first configuration information includes at least one of: routing rules between the first system and the second system, business rules between the first system and the second system, access duration between the first system and the second system, priority of each rule between the first system and the second system.

The embodiment of the application also provides a method for accessing the system, which is applied to a second system and comprises the following steps:

receiving a first request forwarded by second equipment directly connected with the second system; the first request is for access to the second system;

forwarding, by the second device, a first response to a first device directly connected to a first system, so that the first system returns the first response forwarded by the first device to the UE; the first response carries a DNN of the second system for accessing the second system.

In the above solution, the first request carries an identifier of a set application in the second system, and before the first response is forwarded to the first device directly connected to the first system by the second device, the method further includes:

determining a server Internet Protocol (IP) address corresponding to the set application in the second system according to the identifier of the set application;

and writing the determined IP address into the first response.

The embodiment of the present application further provides a method for accessing a system, which is applied to a first device corresponding to a first system, and the method includes:

establishing connection with second equipment corresponding to the second system through a set interface based on first configuration information between the first system and the second system;

after establishing a connection with the second device, performing at least one of:

receiving first information sent by the first system, and forwarding the first information to the second device; or,

receiving second information sent by the second equipment, and forwarding the second information to the first system; wherein,

In the foregoing solution, before establishing a connection with the second device corresponding to the second system through the setting interface, the method includes:

and receiving the first configuration information sent by the first system.

An embodiment of the present application further provides an apparatus for accessing a system, where the apparatus includes:

a receiving unit, configured to receive a first request of a UE; the first request is for requesting access to a second system;

a forwarding unit, configured to forward, by a first device directly connected to the first system, the first request to a second device directly connected to the second system, so that the second system returns a first response to the UE based on the first request forwarded by the second device; the first response carries a DNN of the second system for accessing the second system.

the receiving unit is used for receiving a first request forwarded by second equipment directly connected with the second system; the first request is for access to the second system;

a forwarding unit, configured to forward, by the second device, a first response to a first device directly connected to a first system, so that the first system returns the first response forwarded by the first device to the UE; the first response carries a DNN of the second system for accessing the second system.

An embodiment of the present application further provides an apparatus for accessing a system, where the apparatus includes: the device comprises an establishing unit, a first receiving unit or a second receiving unit; wherein,

the establishing unit is used for establishing connection with second equipment corresponding to the second system through a set interface based on first configuration information between the first system and the second system; wherein the first configuration information represents a communication configuration corresponding to the second system;

the first receiving unit is configured to receive first information sent by the first system, and forward the first information to the second device;

the second receiving unit is configured to receive second information sent by the second device, and forward the second information to the first system.

An embodiment of the present application further provides an electronic device, including: a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor is configured to perform the steps of any of the above methods when running the computer program.

Embodiments of the present application further provide a storage medium on which a computer program is stored, where the computer program is executed by a processor to implement the steps of any one of the above methods.

In the embodiment of the application, the UE sends a first request for requesting access to the second system to the first system, and the first system forwards the first request to the second device directly connected to the second system through the directly connected first device, so that the second system returns a first response to the UE based on the first request forwarded by the second device, where the first response carries the DNN of the second system for accessing the second system, and thus when the UE wants to access the second system, the DNN corresponding to the second system can be obtained through the first system without manually configuring the DNN of the second system that needs to be accessed, thereby improving the efficiency of obtaining the DNN corresponding to other systems by the UE, and also improving the efficiency of accessing other systems by the UE. And by arranging the first equipment and the second equipment, the wide area interconnection and intelligent routing functions among different systems are realized.

Drawings

FIG. 1 is a schematic diagram of a 3 GPP-defined architecture combining 5GC and MEC;

FIG. 2 is a flowchart illustrating an implementation of a method for accessing a system according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of an architecture of cloud network convergence in the 5G industry according to an embodiment of the present application;

fig. 4 is a schematic diagram of an architecture of another 5G industry cloud network convergence provided in the embodiment of the present application;

fig. 5 is a schematic implementation flow chart of another method for accessing a system according to an embodiment of the present application;

fig. 6 is a schematic implementation flow chart of another method for accessing a system according to an embodiment of the present application;

FIG. 7 is a schematic diagram of an implementation flow of a method for accessing a system according to an embodiment of the present application;

fig. 8 is a schematic diagram of an implementation flow of another method for accessing a system according to an embodiment of the present application;

fig. 9 is a schematic diagram of an apparatus for accessing a system according to an embodiment of the present application;

fig. 10 is a schematic diagram of another apparatus for accessing a system according to an embodiment of the present application;

fig. 11 is a schematic diagram of another apparatus for accessing a system according to an embodiment of the present application;

fig. 12 is a schematic diagram of a hardware component structure of an electronic device according to an embodiment of the present application.

Detailed Description

As a new generation communication technology, 5G has the advantages of high bandwidth, low time delay, high reliability, ubiquitous network and the like, and promotes the rapid development and change of vertical industries such as intelligent medical treatment, intelligent education, intelligent agriculture and the like. The MEC is one of the key technologies of 5G evolution, and is an IT service platform with wireless network information Application Program Interface (API) interaction capability and computing, storing, and analyzing capabilities. The 5G network depending on the MEC can provide localized service for users, so that user experience is improved, and more values of the edge network are brought into play.

The 5G industry private network is based on the 5G + MEC technology, faces to different industry demand scenes, and can introduce different technology combinations such as Quality of Service (QoS), end-to-end network slicing, network capacity opening, edge cloud and the like in order to provide a targeted solution.

The third Generation Partnership Project (3 GPP,3rd Generation Partnership Project) gives reference designs for the combination of 5GC and MEC in the standards TS23.501 and TS 23.502. Fig. 1 is a schematic diagram of a 3 GPP-defined architecture combining 5GC and MEC, as shown in fig. 1:

the MEC consists of an MEC platform infrastructure layer, an MEC and an MEC application layer (ME APP), wherein the platform infrastructure layer is based on a general server, and physical resources such as calculation, storage and the like of bottom hardware are provided for the MEC by adopting a Network Function Virtualization (NFVi) mode. The MEP includes ME Services (ME Services) and Application Functions (AF). The ME Services provide a plurality of platforms for independent operation of the application for the ME APP, and the AF comprises functions of data distribution, wireless network information management, network acceleration, service registration and the like, and is opened to the ME APP through an opened API. MEPs are used to implement edge computing functionality and carry edge computing applications. The ME APP is based on the NFVi architecture, the functional components of the MEP are combined and packaged into virtual applications including applications such as local shunting, wireless caching, augmented reality, service optimization and positioning, the applications are opened to a third-party service application through a standard interface, and capability opening and calling are achieved.

In order to enable the vertical industry to have low-delay, high-bandwidth and high-reliability edge applications, the UPF is sunk to a park close to the MEC. When the UE accesses the MEC through the 5GC, the user access request is forwarded to the MEC edge server through the local distribution function of the UPF. The local breakout techniques in the 5G network defined by the current 3GPP include the following three types:

1. an Uplink Classifier (ULCL) approach. The ULCL is a function of the UPF and can locally forward a packet that meets a filtering rule issued by the SMF, wherein the filtering rule issued by the SMF represents a five-tuple of the data packet based on the UE, i.e., a source IP address, a destination IP address, a source port number, a destination port number, and a protocol type. The ULCL supports PDU sessions with Ethernet types IPv4/IPv6/IPv4v 6. The insertion and deletion of the ULCL is done by the SMF, UPF controlled through the N4 interface. A third party platform such as MEP may configure the ULCL forwarding rules through a network open function of 5 GC.

2. IPv6 Branching Point (BP) method. This approach only supports PDU sessions in IPv6 type. The UPF implements local breakout based on the IPv6 address prefix of the data packet. In a similar manner to the ULCL, insertion and deletion of the BP is done by the SMF, controlling the UPF over the N4 interface. A third party platform such as MEP may configure the BP forwarding rule through a network open function of the 5 GC.

3. A dedicated DNN approach. Each MEC corresponds to a dedicated DNN, and when a PDU session for accessing one MEC is created by the UE, the UE needs to carry the DNN corresponding to the MEC to be accessed to smoothly complete the access. And 5GC selects a corresponding UPF to forward the access request of the UE to a corresponding MEC according to the DNN carried by the PDU session.

However, in an actual application scenario of the vertical industry, besides a requirement for accessing the local MEP by the terminal, a requirement for performing wide area interconnection between the MEPs also exists, and a requirement for accessing other non-local MEPs by one terminal also exists. Such as data sharing, remote collaborative diagnosis and other scenes between different hospitals in the intelligent medical industry. In the related art, the UPF defined by 3GPP only supports PDU sessions from the UE to the data network, and does not support connections between data networks. That is, the UPF supports only data connection between the terminal and the MEP, and does not support data connection between the MEPs. Moreover, one MEC may correspond to multiple DNNs, and correspondingly, an MEP in each MEC also corresponds to multiple DNNs, and in actual application, the UE cannot automatically acquire a DNN corresponding to each MEP and a server IP address corresponding to an application in an MEP to be accessed. If a certain MEP is to be accessed, the DNN of the MEP to be accessed and the IP address of the server of the application need to be manually configured, and if a plurality of MEPs are to be accessed, the DNN corresponding to each MEP needs to be manually switched. Thus, the efficiency of the UE for acquiring the DNN corresponding to the MEP is low, and the user experience is poor.

Based on this, an embodiment of the present application provides a method for accessing a system, where a UE sends a first request for requesting access to a second system to a first system, and the first system forwards the first request to a second device directly connected to the second system through a first device directly connected to the second system, so that the second system returns a first response to the UE based on the first request forwarded by the second device, where the first response carries a DNN for accessing the second system of the second system. And by arranging the first equipment and the second equipment, the wide area interconnection and intelligent routing functions among different systems are realized.

The present application will be described in further detail with reference to the following drawings and examples. For convenience of understanding, the method for accessing the system provided by the present application is further described in detail by taking the system as an MEP and the device as a gateway as an example.

Fig. 2 is a schematic implementation flowchart of a method for accessing a system according to an embodiment of the present application, where the method is applied to a first system, and as shown in fig. 2, the method includes:

step 201: receiving a first request of a UE; the first request is for access to a second system. Here, the UE can directly access the first MEP through the UPF, and cannot directly access the second MEP through the UPF. And if the UE needs to access the second MEP, sending a first request for requesting access to the second MEP to the first MEP, and receiving the first request of the UE by the first MEP.

It should be noted that, in the embodiment of the present application, the method for accessing a system provided by the present application is described by taking a first system as a first MEP, a second system as a second MEP, a first device as a first gateway, and a second device as a second gateway.

Step 202: forwarding, by a first device of the first system direct connection, the first request to a second device of the second system direct connection, so that the second system returns a first response to the UE based on the first request forwarded by the second device; the first response carries a DNN of the second system for accessing the second system.

Here, the first MEP is directly connected to the first gateway, the first gateway is directly connected to the second gateway, and the second gateway is directly connected to the second MEP. After receiving the first request, the first MEP first forwards the first request to the first gateway, forwards the first request to the second gateway through the first gateway, and finally forwards the first request to the second MEP through the second gateway. And after receiving the first request, the second MEP returns a first response to the UE based on the first request.

The UE needs to obtain the DNN corresponding to the second MEP to access the second MEP, so that the first response returned by the second MEP carries the DNN of the second MEP.

Fig. 3 is a schematic diagram of an architecture for 5G industry cloud network convergence provided in an embodiment of the present application, as shown in fig. 3:

on the basis of the architecture defined by 3GPP and combined by 5GC and MEC provided in fig. 1, a new device Industry Gateway (IGW) is introduced, and the IGW is deployed between the UPF and the MEP and directly connected with the MEP.

Fig. 4 is a schematic diagram of another architecture for 5G industry cloud network convergence provided in the embodiment of the present application, as shown in fig. 4:

MEP1 and IGW1 directly link, and MEP2 and IGW2 directly link, through I5 interface communication connection between IGW1 and the IGW2, like this, can realize the communication connection between MEP1 and MEP2 through IGW1 and IGW 2.

In an embodiment, the forwarding, by the first device directly connected to the first system, the first request to the second device directly connected to the second system, where the first request carries an identifier of the second system, and the forwarding includes:

acquiring the identifier of the second system carried in the first request;

Here, the first request is used for requesting access to the second MEP, and the first request carries an identifier of the second MEP. After receiving the first request, the first MEP performs permission check on the first request sent by the UE, and checks whether the UE has permission to send the first request to the first MEP. After the authority verification is successful, the first MEP acquires the identifier of the second MEP carried in the first request, and after the identifier of the second MEP is acquired, the first MEP determines that the UE is to access the second MEP, so that the first request is forwarded to a second gateway corresponding to the second MEP.

By acquiring the identifier of the second MEP in the first request and forwarding the first request based on the identifier of the second MEP, the first request can be forwarded to the gateway of the corresponding MEP in a targeted manner, and the efficiency of obtaining the DNN of the MEP which the UE wants to access is improved.

In an embodiment, the first request carries an identifier of a set application in the second system.

Here, the first request sent by the UE carries an identifier of the application set in the second MEP that the UE wants to access, and if the UE wants to access the application set, the UE needs to obtain an IP address of a server corresponding to the application set. After the first MEP forwards the first request to the second MEP through the first gateway and the second gateway, the second MEP receives the first request and then acquires the identifier of the set application carried in the first request. And determining a server IP address corresponding to the set application according to the identifier of the set application, writing the server IP address into a first response, and returning the server IP address to the UE.

By carrying the identifier of the setting application in the first request, the server IP address corresponding to the setting application can be acquired from the second MEP, so that the UE can access the setting application in the second MEP based on the first response.

In an embodiment, before the forwarding, by the first device directly connected to the first system, the first request to the second device directly connected to the second system, the method further comprises:

Before the first request is forwarded through the first gateway, a communication connection is established between the first gateway corresponding to the first MEP and the second gateway corresponding to the second MEP, so that wide area interconnection between the first MEP and the second MEP is realized. The specific method for establishing the connection comprises the following steps: and sending the first configuration information to the first gateway, so that the first gateway establishes connection with the second gateway based on the first configuration information. The first configuration information represents a communication configuration corresponding to the second MEP.

By sending the first configuration information to the first gateway and establishing the connection between the first gateway and the second gateway, the wide area interconnection between the first MEP and the second MEP can be realized, so that the UE can obtain the DNN corresponding to the second MEP through the first MEP.

In an embodiment, the first configuration information comprises at least one of: routing rules between the first system and the second system, business rules between the first system and the second system, access duration between the first system and the second system, priority of each rule between the first system and the second system.

Here, the first configuration information specifically includes at least one of:

a routing rule between the first MEP and the second MEP. The routing rule is used for setting routing configuration of communication between the first MEP and the second MEP, and the routing rule comprises a routing rule identifier, a message detection rule, a message processing mode and a message destination interface. Wherein the routing rule identifier is used to uniquely identify a routing rule within a private network system. The message detection rule comprises the message forwarding direction: uplink in to the network server and downlink out to the terminal, and an IP message quintuple: source IP address, destination IP address, source port, destination port, protocol number of transport layer protocol. The processing modes of the message comprise discarding, forwarding, copying and retransmitting. The message destination interface includes an identifier of the destination interface.

A business rule between the first MEP and the second MEP. The business rules specifically include bandwidth requirements, delay requirements, reliability requirements, and traffic restriction requirements for communication between the first MEP and the second MEP.

An access duration between the first MEP and the second MEP. The access duration characterizes a duration limit of communication between the first MEP and the second MEP, and if the communication duration exceeds the access duration, the first gateway disconnects the connection to the second gateway.

A priority of each rule between the first MEP and the second MEP. When a first MEP communicates with a second MEP, a plurality of communication rules exist between the first MEP and the second MEP, and each rule corresponds to a priority. In order to improve the communication efficiency, the first gateway may preferentially ensure the implementation of the rule with higher priority. If the network load is higher, the first gateway may preferentially forward the data packet corresponding to the rule with the higher priority.

After sending the first configuration information to the first gateway, the first MEP sends an Internet Security Protocol (IPsec) policy to the first gateway. The IPsec policies include, but are not limited to, encryption algorithms, keys, and transmission modes of the messages used in the message transmission process. And based on the IPsec strategy, a secure channel for data transmission can be established between the first gateway and the second gateway.

By specifically setting the configuration for communicating with the second MEP in the first configuration information, a data transmission channel can be established between the first gateway and the second gateway, and wide area interconnection of the first MEP and the second MEP is realized.

In the embodiment of the application, the UE sends a first request for requesting access to the second system to the first system, and the first system forwards the first request to the second device directly connected to the second system through the directly connected first device, so that the second system returns a first response to the UE based on the first request forwarded by the second device, where the first response carries a DNN for accessing the second system of the second system. And by arranging the first equipment and the second equipment, the wide area interconnection and intelligent routing functions among different systems are realized.

Fig. 5 is a schematic implementation flow diagram of another method for accessing a system according to an embodiment of the present application, where the method is applied to a second system. As shown in fig. 5, the method includes:

step 501: receiving a first request forwarded by second equipment directly connected with the second system; the first request is for requesting access to the second system.

Here, the second MEP is directly connected to the second gateway, and the second MEP receives the first request forwarded by the second gateway.

Step 502: forwarding, by the second device, a first response to a first device directly connected to a first system, so that the first system returns the first response forwarded by the first device to the UE; the first response carries a DNN of the second system for accessing the second system.

Here, the second MEP, upon receiving the first request, makes a first response based on the first request, and returns the first response to the UE. The specific process is to forward the first response to the second gateway, forward the first response to the first gateway through the second gateway, forward the first response to the first MEP through the first gateway, and return the first response to the UE through the first MEP.

In an embodiment, the first request carries an identifier of a set application in a second system, and before the second device forwards a first response to a first device directly connected to a first system, the method further includes:

determining a server IP address corresponding to the set application in the second system according to the identifier of the set application;

writing the determined IP address to the first response.

Here, the first request sent by the UE carries an identifier of the application set in the second MEP that the UE wants to access, and if the UE wants to access the application set, the UE needs to obtain an IP address of a server corresponding to the application set. And after receiving the first request, the second MEP acquires the identifier of the set application carried in the first request. And determining a server IP address corresponding to the set application according to the identifier of the set application, writing the server IP address into a first response, and returning the server IP address to the UE.

The server IP address corresponding to the set application is determined according to the identifier of the set application carried in the first request, and the IP address is written into the first response and returned to the UE, so that the UE can access the set application in the second MEP based on the first response.

Fig. 6 is a schematic implementation flow diagram of another method for accessing a system according to an embodiment of the present application, where the method is applied to a first device. As shown in fig. 6, the method includes:

step 601: and establishing connection with second equipment corresponding to the second system through a set interface based on first configuration information between the first system and the second system.

Here, the first gateway establishes a connection with the second gateway through the setting interface based on the first configuration information. The first configuration information characterizes a communication configuration corresponding to the second MEP, that is, various rules for communication between the first MEP and the second MEP.

Step 602: after establishing a connection with the second device, performing at least one of:

Here, after the first gateway establishes a connection with the second gateway, a data connection may be performed between the first MEP and the second MEP based on the first gateway and the second gateway.

And the first gateway receives the first information of the second MEP and forwards the first information to the second gateway. Or receiving second information sent by the second gateway, and forwarding the second information to the first MEP. When the first information represents the first request, the second information represents a first response corresponding to the first request. And when the first information represents the request of the first MEP for accessing the second MEP, the second information represents the access log corresponding to the second MEP. The access log specifically includes: the method comprises the following steps of accessing the second MEP by the first MEP, accessing time length of the second MEP by the first MEP, time delay of the second MEP accessed by the first MEP, and flow information of the second MEP accessed by the first MEP. And the first gateway forwards the second information to the first MEP so that the first MEP counts and monitors the access condition.

In an embodiment, before the establishing of the connection with the second device corresponding to the second system through the setting interface, the method includes:

and receiving the first configuration information sent by the first system.

Here, the first configuration information sent by the first MEP is received before establishing a connection with the second gateway through the set interface. The first configuration information represents communication configuration corresponding to the second MEP, and based on the first configuration information, connection conforming to the communication configuration is established between the first gateway and the second gateway.

By receiving the first configuration information sent by the first MEP, connection can be established between the first gateway and the second gateway, so that wide area interconnection between the first MEP and the second MEP is achieved.

Fig. 7 is a schematic diagram of an implementation flow of a method for accessing a system according to an embodiment of the application, as shown in fig. 7:

MEP1 sends first configuration information, that is, communication configuration corresponding to MEP2, to IGW1, which specifically includes: identification ID of MEP2, routing rule between MEP1 and MEP2, business rule between MEP1 and MEP2, access duration between MEP1 and MEP2, priority of each rule between MEP1 and MEP2. After transmitting the first configuration information, MEP1 transmits IPsec configuration to IGW 1. IGW1 establishes a connection between IGW1 and IGW2 based on the first configuration information. After establishing the connection, MEP1 sends to IGW1 data that accesses MEP2, which is forwarded to MEP2 via IGW1 and IGW 2.MEP2 returns an access log to MEP1 based on the access data.

Fig. 8 is a schematic diagram of an implementation flow of another method for accessing a system according to an embodiment of the application, as shown in fig. 8:

UE sends request for accessing appointed application in MEP2 to MEP1, and the request carries ID of MEP2 and ID of appointed application. MEP1 sends a request for acquiring DNN of MEP2 and the IP address of the server corresponding to the specified application to IGW1, wherein the request carries ID of MEP2 and ID of the specified application. IGW1 forwards the request for obtaining the DNN of MEP2 and the IP address of the server corresponding to the specified application to IGW2, wherein the request carries the ID of MEP2 and the ID of the specified application. IGW2 forwards the request to MEP2, where the request carries the ID of the specified application. After receiving the request, MEP2 sends a response message to UE through IGW2, IGW1, MEP1, where the response message carries DNN of MEP2 and an application server IP address corresponding to the specified application.

To implement the method according to the embodiment of the present application, an embodiment of the present application further provides a device for accessing a system, fig. 9 is a schematic diagram of the device for accessing a system according to the embodiment of the present application, please refer to fig. 9, where the device includes:

a receiving unit 901, configured to receive a first request of a UE; the first request is for access to a second system.

A forwarding unit 902, configured to forward, by a first device directly connected to the first system, the first request to a second device directly connected to the second system, so that the second system returns a first response to the UE based on the first request forwarded by the second device; the first response carries a DNN of the second system for accessing the second system.

In an embodiment, the first request carries an identifier of a second system, and the forwarding unit 902 is further configured to obtain the identifier of the second system carried in the first request; forwarding, by the first device, the first request to the second device based on the obtained identity of the second system.

In one embodiment, the apparatus further comprises: a sending unit, configured to send first configuration information to the first device, so that the first device establishes a connection with the second device based on the first configuration information; wherein the first configuration information represents a communication configuration corresponding to the second system.

In practical applications, the receiving Unit 901, the forwarding Unit 902, and the sending Unit may be implemented by a Processor in a terminal, such as a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU), or a Programmable Gate Array (FPGA).

An embodiment of the present application further provides a device for accessing a system, fig. 10 is a schematic diagram of another device for accessing a system provided in an embodiment of the present application, please refer to fig. 10, where the device includes:

a receiving unit 1001, configured to receive a first request forwarded by a second device directly connected to the second system; the first request is for access to the second system;

a forwarding unit 1002, configured to forward, by the second device, a first response to a first device directly connected to a first system, so that the first system returns the first response forwarded by the first device to the UE; the first response carries a DNN of the second system for accessing the second system.

In an embodiment, the first request carries an identifier of a set application in the second system, and the apparatus further includes: the determining unit is used for determining the IP address of the server corresponding to the set application in the second system according to the identifier of the set application; and writing the determined IP address into the first response.

In practical applications, the receiving Unit 1001, the forwarding Unit 1002, and the determining Unit may be implemented by a Processor in the terminal, such as a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU), or a Programmable Gate Array (FPGA).

An embodiment of the present application further provides a device for accessing a system, fig. 11 is a schematic diagram of another device for accessing a system provided in an embodiment of the present application, please refer to fig. 11, where the device includes: a creating unit 1101, a first receiving unit 1102, or a second receiving unit 1103; wherein,

the establishing unit 1101 is configured to establish a connection with a second device corresponding to the second system through a set interface based on first configuration information between the first system and the second system; wherein the first configuration information represents a communication configuration corresponding to the second system.

The first receiving unit 1102 is configured to receive first information sent by the first system, and forward the first information to the second device.

The second receiving unit 1103 is configured to receive second information sent by the second device, and forward the second information to the first system.

In one embodiment, the apparatus further comprises: a third receiving unit, configured to receive the first configuration information sent by the first system.

In practical applications, the establishing Unit 1101, the first receiving Unit 1102, the second receiving Unit 1103, and the third receiving Unit may be implemented by a Processor in a terminal, such as a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU), or a Programmable Gate Array (FPGA).

It should be noted that: in the above embodiment, the division of each program module is merely used as an example to illustrate that, in the process of displaying information, in practical applications, the above processing allocation may be completed by different program modules according to needs, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the above-described processing. In addition, the apparatus for accessing a system and the method embodiment for accessing a system provided in the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiment and are not described herein again.

Based on the hardware implementation of the program module, in order to implement the method of the embodiment of the present application, an embodiment of the present application further provides an electronic device. Fig. 12 is a schematic diagram of a hardware component structure of an electronic device according to an embodiment of the present application, and as shown in fig. 12, the electronic device includes:

a communication interface 1201 capable of performing information interaction with other devices such as a network device and the like;

the processor 1202 is connected to the communication interface 1201 to implement information interaction with other devices, and is configured to execute a method provided by one or more technical solutions of the terminal side when running a computer program. And the computer program is stored on the memory 1203.

Specifically, the processor 1202 is configured to receive a first request of a UE; the first request is for requesting access to a second system; forwarding, by a first device directly connected to the first system, the first request to a second device directly connected to the second system, so that the second system returns a first response to the UE based on the first request forwarded by the second device; the first response carries a DNN of the second system for accessing the second system.

In an embodiment, the first request carries an identifier of a second system, and the communication interface 1201 is further configured to obtain the identifier of the second system carried in the first request; forwarding, by the first device, the first request to the second device based on the obtained identifier of the second system.

In an embodiment, before the forwarding the first request to a second device connected to the second system through a first device connected to the first system, the communication interface 1201 is further configured to send first configuration information to the first device, so that the first device establishes a connection with the second device based on the first configuration information; wherein the first configuration information represents a communication configuration corresponding to the second system.

In an embodiment, the processor 1202 is further configured to receive a first request forwarded by a second device of the second system direct connection; the first request is for access to the second system; forwarding, by the second device, a first response to a first device directly connected to a first system, so that the first system returns the first response forwarded by the first device to the UE; the first response carries a DNN of the second system for accessing the second system.

In an embodiment, the first request carries an identifier of a set application in a second system, and before the first response is forwarded to a first device directly connected to the first system through the second device, the processor 1202 is further configured to determine, according to the identifier of the set application, a server IP address corresponding to the set application in the second system; and writing the determined IP address into the first response.

In an embodiment, the processor 1202 is further configured to establish a connection with a second device corresponding to the second system through a setting interface based on first configuration information between the first system and the second system; after establishing a connection with the second device, performing at least one of: receiving first information sent by the first system, and forwarding the first information to the second device; or receiving second information sent by the second device, and forwarding the second information to the first system; wherein the first configuration information represents a communication configuration corresponding to the second system.

In an embodiment, before the connection is established with the second device corresponding to the second system through the setting interface, the communication interface 1201 is further configured to receive the first configuration information sent by the first system.

Of course, in practice, the various components in the electronic device are coupled together by bus system 1204. It is understood that the bus system 1204 is used to enable communications among the components of the connection. The bus system 1204 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. For clarity of illustration, however, the various buses are designated as bus system 1204 in figure 12.

The memory 1203 in the embodiment of the present application is used for storing various types of data to support the operation of the electronic device. Examples of such data include: any computer program for operating on an electronic device.

It will be appreciated that the memory 1203 may be either volatile memory or nonvolatile memory, and may also include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may 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 magnetic random access Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and 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), enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), synchronous Dynamic Random Access Memory (SLDRAM), direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 1203 described in embodiments herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The methods disclosed in the embodiments of the present application may be applied to the processor 1202 or implemented by the processor 1202. The processor 1202 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 1202. The processor 1202 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 1202 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 1203, and the processor 1202 reads the programs in the memory 1203 to implement the steps of the foregoing method in combination with hardware thereof.

The processor 1202 implements corresponding flows in the methods of the embodiments of the present application when executing the programs.

In an exemplary embodiment, the present application further provides a storage medium, i.e., a computer storage medium, specifically a computer readable storage medium, for example, including a memory 1203 storing a computer program, which can be executed by a processor 1202 to perform the steps of the foregoing method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, terminal and method may be implemented in other manners. The above-described device embodiments are only illustrative, for example, the division of the unit is only one logical function division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or in other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

Those of ordinary skill in the art will understand that: all or part of the steps of implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer-readable storage medium, and when executed, executes the steps including the method embodiments; and the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.

Alternatively, the integrated units described above in the present application may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or portions thereof that contribute to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling an electronic device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for accessing a system, the method comprising, for a first system:

receiving a first request of User Equipment (UE); the first request is for access to a second system;

forwarding, by a first device of the first system direct connection, the first request to a second device of the second system direct connection, so that the second system returns a first response to the UE based on the first request forwarded by the second device; the first response carries a data network name DNN of the second system for accessing the second system.

2. The method according to claim 1, wherein the first request carries an identifier of the second system, and the forwarding, by a first device directly connected to the first system, the first request to a second device directly connected to the second system comprises:

acquiring an identifier of a second system carried in the first request;

3. The method of accessing a system of claim 1, wherein prior to forwarding the first request to a second device of the second system direct connection by the first device of the first system direct connection, the method further comprises:

4. The method of accessing a system of claim 3, wherein the first configuration information comprises at least one of:

routing rules between the first system and the second system, business rules between the first system and the second system, access duration between the first system and the second system, priority of each rule between the first system and the second system.

5. A method of accessing a system, applied to a second system, the method comprising:

receiving a first request forwarded by second equipment directly connected with the second system; the first request is for requesting access to the second system;

6. The method according to claim 5, wherein the first request carries an identifier of a set application in the second system, and before the forwarding, by the second device, the first response to the first device directly connected to the first system, the method further comprises:

and writing the determined IP address into the first response.

7. The method for accessing the system is characterized by being applied to first equipment corresponding to a first system; the method comprises the following steps:

8. The method for accessing a system according to claim 7, prior to establishing a connection with a second device corresponding to the second system through a setting interface, comprising:

and receiving the first configuration information sent by the first system.

9. The method of accessing a system of claim 8, wherein the first configuration information comprises at least one of: routing rules between the first system and the second system, business rules between the first system and the second system, access duration between the first system and the second system, priority of each rule between the first system and the second system.

10. An apparatus for accessing a system, the apparatus comprising:

a receiving unit, configured to receive a first request of a UE; the first request is for access to a second system;

11. An apparatus for accessing a system, the apparatus comprising:

the receiving unit is used for receiving a first request forwarded by second equipment directly connected with the second system; the first request is for requesting access to the second system;

12. An apparatus for accessing a system, the apparatus comprising: the device comprises an establishing unit, a first receiving unit or a second receiving unit; wherein,

13. An electronic device, comprising: a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor is adapted to perform the steps of the method of any one of claims 1-9 when running the computer program.

14. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the method of any one of claims 1 to 9.