CN114979985A - Indirect communication message transmission method, system and gateway equipment - Google Patents
Indirect communication message transmission method, system and gateway equipment Download PDFInfo
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Abstract
The embodiment of the invention provides an indirect communication message transmission method, a system and gateway equipment, wherein the method is applied to a signaling intercommunication gateway and comprises the following steps: receiving a service request sent by an enterprise private network element, wherein the destination address of the service request is the address of a signaling intercommunication gateway; determining a target network element corresponding to the service request, wherein the target network element belongs to network elements in an operator network; updating the destination address of the service request to the address of the target network element to obtain a target service request; sending a target service request to a target network element; receiving a response message fed back by the target network element according to the target service request, wherein the response message comprises an example identifier of the target network element; deleting the instance identifier of the target network element in the response message to obtain a message to be returned; and the message to be returned is forwarded to the network element of the enterprise private network, so that the safe transmission of the communication message between the enterprise private network and the operator network is realized.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, a system, and a gateway device for indirect communication message delivery.
Background
With the rapid development of 5G (5th Generation Mobile Communication Technology, fifth Generation Mobile Communication Technology) enterprise private network Communication (private network for short), the requirement for interworking between a private network and an operator network (large network for short) is increasingly urgent, and how to implement secure transmission of Communication messages between the private network and the large network becomes an urgent problem to be solved.
Disclosure of Invention
The embodiment of the invention aims to provide an indirect communication message transmission method, a system and gateway equipment so as to realize the safe transmission of communication messages between a private network and a large network. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides an indirect communication message delivery method, which is applied to a signaling interworking gateway, and the method includes:
receiving a service request sent by an enterprise private network element, wherein the destination address of the service request is the address of the signaling interworking gateway;
determining a target network element corresponding to the service request, wherein the target network element belongs to network elements in an operator network;
updating the destination address of the service request to the address of the target network element to obtain a target service request;
sending the target service request to the target network element;
receiving a response message fed back by the target network element according to the target service request, wherein the response message comprises an instance identifier of the target network element;
deleting the instance identifier of the target network element in the response message to obtain a message to be returned;
and forwarding the message to be returned to the enterprise private network element.
Optionally, the service request includes: requested service information; the determining of the target network element corresponding to the service request includes:
and determining a target network element corresponding to the service request according to the requested service information.
Optionally, the service request is a subscription request, and the service request includes: the callback uniform resource descriptor of the enterprise private network element; the response message further includes the callback uniform resource descriptor and a target field with a value of the callback uniform resource descriptor, and the deleting the instance identifier of the target network element in the response message to obtain the message to be returned includes:
deleting the instance identifier of the target network element and the target field of which the value is the callback uniform resource descriptor in the response message to obtain a message to be returned;
forwarding the message to be returned to the enterprise private network element, including:
and sending the message to be returned to the enterprise private network element corresponding to the callback uniform resource descriptor.
Optionally, the method further comprises:
and adding target identification information in the target service request, wherein the target identification information is used for identifying that the target service request is forwarded by the signaling interworking gateway.
Optionally, the enterprise private network element and the signaling interworking gateway, and the signaling interworking gateway and the target network element send messages using a hypertext transfer protocol version 2 HTTP/2 protocol.
In a second aspect, an embodiment of the present invention provides an indirect communication messaging system, where the system includes: an enterprise private network element, a signaling intercommunication gateway and an operator network element;
the enterprise private network element is used for sending a service request to the signaling interworking gateway, wherein the destination address of the service request is the address of the signaling interworking gateway;
the signaling interworking gateway is configured to receive the service request, determine a target network element corresponding to the service request, where the target network element belongs to a network element in an operator network, update a destination address of the service request to an address of the target network element, obtain a target service request, and send the target service request to the target network element;
the target network element is configured to receive the target service request, and feed back a response message of the target service request to the signaling interworking gateway, where the response message includes an instance identifier of the target network element;
the signaling interworking gateway is configured to receive a response message fed back by the target network element according to the target service request, delete the instance identifier of the target network element in the response message, obtain a message to be returned, and forward the message to be returned to the private network element of the enterprise;
and the enterprise private network element is used for receiving the message to be returned.
Optionally, the service request includes: requested service information;
the signaling interworking gateway is specifically configured to determine, according to the service information of the request, a target network element corresponding to the service request.
Optionally, the service request is a subscription request, and the service request includes: the callback uniform resource descriptor of the enterprise private network element; the response message further includes the callback uniform resource descriptor and a target field whose value is the callback uniform resource descriptor,
the signaling interworking gateway is specifically configured to delete the instance identifier of the target network element and the target field whose value is the callback uniform resource descriptor in the response message, obtain a to-be-returned message, and send the to-be-returned message to the enterprise private network element corresponding to the callback uniform resource descriptor.
Optionally, the signaling interworking gateway is further configured to add target identification information in the target service request, where the target identification information is used to identify that the target service request is forwarded by the signaling interworking gateway;
and the target network element is specifically configured to feed back a response message of the target service request to the signaling interworking gateway according to the target identification information.
Optionally, the enterprise private network element and the signaling interworking gateway, and the signaling interworking gateway and the target network element send messages using a hypertext transfer protocol version 2 HTTP/2 protocol.
In a third aspect, an embodiment of the present invention provides a gateway device, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete mutual communication through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any of the first aspect when executing a program stored in the memory.
In a fourth aspect, the present invention provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the method steps of any one of the first aspect.
Embodiments of the present invention also provide a computer program product comprising instructions, which when run on a computer, cause the computer to perform the method steps according to any of the first aspect described above.
The embodiment of the invention has the following beneficial effects:
the signaling intercommunication gateway updates the destination address of the service request sent by the enterprise private network element, namely the address of the signaling intercommunication gateway, into the address of the target network element determined for the service request to obtain the target service request, deletes the example identifier of the target network element in the response message fed back by the target network element according to the target service request to obtain the message to be returned, and forwards the message to be returned to the enterprise private network element, the method and the device enable the enterprise private network element to be unable to know the information of the network element responding to the service request in the operator network, realize the network isolation between the enterprise private network and the operator network, and can normally forward the communication message on the premise of ensuring that the operator network element is invisible to the enterprise private network element, thereby realizing the safe transmission of the communication message between the enterprise private network and the operator network.
Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by referring to these drawings.
Fig. 1 is a flowchart illustrating an indirect communication messaging method according to an embodiment of the present invention;
fig. 2 is a schematic signaling interaction diagram of an indirect communication message passing method according to an embodiment of the present invention;
fig. 3 is a schematic signaling interaction diagram of another indirect communication message passing method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an indirect communication messaging system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a gateway device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived from the embodiments of the present invention by those skilled in the art based on the description, are within the scope of the present invention.
With the rapid development of 5G enterprise private network communication (private network for short) service, the requirement for interworking between a private network and an operator network (large network for short) is increasingly urgent, and a series of problems of network security, operator control, national supervision and the like occur in the process of the requirement for interworking between the private network and the large network. With the evolution of a 5G network towards R16(3GPP Release 16, the second stage of the 5G standard), in order to reduce the non-standard modification of the operator's large network as much as possible, an indirect communication mode is proposed in the related art to transmit a signaling message between an enterprise private network and an operator's network, specifically, an SCP (Service control point) is used as a transit node of the signaling message, the enterprise private network element sends the signaling message to the SCP transit node, the signaling message carries an operator's network element address as a destination address to inform a destination network element to which the SCP signaling message is forwarded, and then the SCP forwards the signaling message to the operator's network element as the destination address after receiving the signaling message, the indirect communication mode requires the enterprise private network element to inform the SCP of the operator's network element address, so that both parties of the message transmission know network information, topology hiding cannot be realized, and further network security of a large network of an operator cannot be guaranteed, so that secure transmission of communication messages between enterprise private network elements and operator network elements cannot be guaranteed.
In order to realize the secure transmission of communication messages between a private enterprise network and an operator network, the embodiment of the invention provides an indirect communication message transmission method, a system and gateway equipment, wherein the indirect communication message transmission method is applied to a signaling interworking gateway, and specifically, the signaling interworking gateway receives a service request sent by a private enterprise network element, the destination address of the service request is the address of the signaling interworking gateway, determines a target network element corresponding to the service request, the target network element belongs to a network element in the operator network, updates the destination address of the service request to the address of the target network element to obtain the target service request, sends the target service request to the target network element, and receives a response message fed back by the target network element according to the target service request, the response message comprises an example identifier of the target network element, and deletes the example identifier of the target network element in the response message, and obtaining a message to be returned, and forwarding the message to be returned to the enterprise private network element.
In the embodiment of the invention, the signaling intercommunication gateway updates the destination address of the service request sent by the enterprise private network element, namely the address of the signaling intercommunication gateway, into the address of the target network element determined by the service request to obtain the target service request, deletes the example identifier of the target network element in the response message fed back by the target network element according to the target service request to obtain the message to be returned, and then forwards the message to be returned to the enterprise private network element, so that the enterprise private network element cannot know the information of the network element responding to the service request in the operator network, the network isolation between the enterprise private network and the operator network is realized, the communication message can be normally forwarded on the premise of ensuring that the operator network element is invisible to the enterprise private network element, and the safe transmission of the communication message between the enterprise private network and the operator network is realized.
The indirect communication message transmission method provided by the invention is explained in detail by specific embodiments.
The indirect communication message transmission method provided by the embodiment of the invention is applied to the signaling intercommunication gateway, the signaling intercommunication gateway can be deployed between the enterprise private network and the operator network, so that the signaling messages between the enterprise private network and the operator network are all forwarded through the signaling intercommunication gateway, network isolation, topology hiding and the like between the enterprise private network and the operator network are realized, and the enterprise private network and the operator network only need to support a labeled interface protocol without customized development. In one embodiment, the signaling interworking gateway may be an SCP network element, etc., and the signaling interworking gateway uses the SCP network element, which can use a standard SCP disaster tolerance mechanism for reference, thereby ensuring the reliability of the enterprise private network service.
In the process of implementing communication message transmission between the enterprise private network and the operator network, for the operator network side, an operator network element (e.g., a UDM (Unified Data Management) network element) may use an indirect communication mode, configure a service communication agent as a signaling interworking gateway, and further perform message transmission between the UDM and the signaling interworking gateway through the indirect communication mode. In one example, for the operator network side, the service communication agent and the signaling interworking gateway may be SCP network elements, the operator network side may have a plurality of SCP network elements, and the signaling interworking gateway may be one of the plurality of SCP network elements of the operator network side. For the private enterprise network side, a private enterprise network element (e.g., an Access and Mobility Management Function (AMF) network element) may use a direct communication mode, configure a destination address of the operator network side in direct communication with the AMF as a signaling interworking gateway address, and perform message transmission between the AMF and the signaling interworking gateway through the direct communication mode. In one example, for the private corporate network side, the signaling interworking gateway corresponds to a carrier network UDM network element that communicates directly with the AMF.
Referring to fig. 1, fig. 1 is a method for indirect communication message delivery according to an embodiment of the present invention, which is applied to a signaling interworking gateway, and includes:
s101, receiving a service request sent by an enterprise private network element.
The signaling interworking gateway receives a service request sent by an enterprise private network element, and the destination address of the service request can be the address of the signaling interworking gateway.
In some embodiments, the message may be sent between the enterprise private network element and the signaling interworking gateway using HTTP/2(hypertext transfer Protocol 2.0, version 2 of hypertext transfer Protocol) Protocol.
In an example, a service request sent by an enterprise private network element received by a signaling interworking gateway is transmitted by using an HTTP/2 protocol, a value of field authority in an HTTP/2 header may be address information of the signaling interworking gateway to indicate a destination address to be sent by the service request, a value of field path may be service information requested by the enterprise private network element, and a value of field user-agent may be a network element type/network element instance identifier of the enterprise private network element. Illustratively, the enterprise private Network element is an AMF Network element, and the value of the field user-agent may be NF instance ID (Network Function instance identity) of the AMF Network element.
S102, determining a target network element corresponding to the service request.
After receiving the service request, the signaling interworking gateway determines a corresponding target network element for the service request, wherein the target network element belongs to a network element in an operator network.
In some embodiments, the service request may include: the requesting service information, correspondingly, determining a target network element corresponding to the service request may include: and determining a target network element corresponding to the service request according to the requested service information.
The signaling interworking gateway may store a correspondence between the requested service information and the operator network element, and further, after receiving the service request, may query the correspondence by using the service information requested in the service request to determine a target network element corresponding to the service request. The requested service information may be, for example, number segment information, location information, or slice information of an enterprise private network element, and correspondingly, after receiving the service request, the signaling interworking gateway may query a correspondence between the number segment information and an operator network element, a correspondence between the location information and the operator network element, or a correspondence between the slice information and the operator network element, so as to obtain a target network element corresponding to the service request.
Illustratively, the requested service information is SUPI (subscriber Permanent Identifier) of the AMF, and the signaling interworking gateway queries a corresponding relationship between the SUPI and a network element of the operator network and selects a target network element on the network side of the operator for the AMF.
S103, updating the destination address of the service request to the address of the target network element to obtain the target service request.
And determining a target network element corresponding to the service request, namely knowing the address of the target network element. The signaling interworking gateway can update the destination address of the service request to the address of the target network element to obtain the target service request, so as to send the target service request to the target network element.
In one example, the signaling interworking gateway updates the destination address of the service request to the address of the target network element, and obtains the target service request without changing other information. Illustratively, after a target network element corresponding to a service request is determined, a value of field authority in an HTTP/2 header of the service request may be updated to address information of the target network element, a value of field path is unchanged for service information requested by an enterprise private network element, and a value of field user-agent is unchanged for a network element type/network element instance identifier of the enterprise private network element, so as to obtain the target service request.
S104, sending the target service request to the target network element.
In some embodiments, the signaling interworking gateway and the target network element may send messages using the HTTP/2 protocol.
And S105, receiving a response message fed back by the target network element according to the target service request.
After receiving the target service request, the target network element on the network side of the operator responds to the target service request, and feeds back a response message to the signaling interworking gateway, where the response message may include an instance identifier of the target network element.
Illustratively, after receiving a target service request, a target network element on an operator network side responds to the target service request, and inserts a header field 3gpp-Sbi-Producer-Id into a response message to indicate a network element instance identifier of the target network element itself, and informs a signaling interworking gateway receiving the response message of a source of the response message.
S106, deleting the instance identifier of the target network element in the response message to obtain the message to be returned.
And after receiving the response message fed back by the target network element, the signaling interworking gateway deletes the example identifier of the target network element in the response message so as to hide the information of the target network element and obtain the message to be returned. Illustratively, the signaling interworking gateway deletes the header field 3gpp-Sbi-Producer-Id in the response message, and hides the information of the target network element to obtain the message to be returned.
S107, the message to be returned is forwarded to the enterprise private network element.
The signaling intercommunication gateway deletes the instance identifier of the target network element, hides the message to be returned of the target network element information and forwards the message to be returned to the enterprise private network element, so that the safe transmission of the communication message between the enterprise private network and the operator network is realized under the condition that the enterprise private network element cannot know the network element information responding to the service request in the operator network.
In the embodiment of the invention, the signaling intercommunication gateway updates the destination address of the service request sent by the enterprise private network element, namely the address of the signaling intercommunication gateway, into the address of the target network element determined for the service request to obtain the target service request, deletes the example identifier of the target network element in the response message fed back by the target network element according to the target service request to obtain the message to be returned, and forwards the message to be returned to the enterprise private network element, so that the enterprise private network element cannot know the information of the network element responding to the service request in the operator network, the network isolation between the enterprise private network and the operator network is realized, the communication message can be normally forwarded on the premise of ensuring that the operator network element is invisible to the enterprise private network element, and the safe transmission of the communication message between the enterprise private network and the operator network is realized.
In some embodiments, the service request may be a subscription request, and the service request may include: the method includes that a callback uniform resource descriptor of an enterprise private network element, a response message fed back by a target network element may further include the callback uniform resource descriptor, and a target field with a value of the callback uniform resource descriptor, and correspondingly, the deleting an instance identifier of the target network element in the response message obtains a message to be returned, which may include: deleting the instance identifier of the target network element and the target field with the value of the callback uniform resource descriptor in the response message to obtain a message to be returned; the forwarding the message to be returned to the enterprise private network element may include: and sending the message to be returned to the enterprise private network element corresponding to the callback uniform resource descriptor.
In a case that the service request is a subscription request, the service request may further include: a callback URI (callback Uniform Resource Identifier) of the private corporate network element, which is used to identify the return address of the subscribed message, i.e. the callback address of the private corporate network element itself that sent the service request.
After receiving a service request sent by an enterprise private network element, a signaling interworking gateway determines a corresponding target network element for the service request, updates the target address of the service request to the address of the target network element, and obtains the target service request without changing other information contained in the service request, and sends the target service request to the target network element. Illustratively, the signaling interworking gateway may update a value of a field authority in an HTTP/2 header of the service request to address information of the target network element, where a value of a field path is unchanged for service information requested by the private network element of the enterprise, a value of a field user-agent is unchanged for a network element type/a network element instance identifier of the private network element of the enterprise, and a field of callback URI information is unchanged, so as to obtain the target service request.
After receiving the target service request, the target network element reads a callback URI information field in the target service request, a response message fed back to the signaling interworking gateway contains callback URI information, and the target field with the value of the callback URI is inserted into the response message, so that the signaling interworking gateway can know to forward the subscribed notification message to which network element after receiving the response message. Illustratively, the Target field having a value of callback URI may be represented as a header field 3 gpp-Sbi-Target-apiRoot.
After receiving the response message, the signaling interworking gateway may read a callback URI of the header field 3gpp-Sbi-Target-apiRoo to know the address of the private network element of the enterprise to be forwarded by the response message, delete the instance identifier of the Target network element and the Target field with the value of the callback uniform resource descriptor in the response message, obtain a message to be returned, hide information of the Target network element, and further send the message to be returned to the private network element corresponding to the callback URI. Illustratively, after receiving the response message, the signaling interworking gateway may delete the header field 3gpp-Sbi-Producer-Id and the header field 3gpp-Sbi-Target-apiRoot to obtain the message to be returned.
In some embodiments, the signaling interworking gateway receives a service request sent by an enterprise private network element, updates a destination address of the service request to an address of a target network element, and after obtaining the target service request, may add target identification information in the target service request, where the target identification information is used to identify that the target service request is forwarded by the signaling interworking gateway, so that the target network element can know that the target service request is forwarded by the signaling interworking gateway after receiving the target service request, thereby facilitating the target network element to quickly feed back a response message to the signaling interworking gateway according to the target identification information.
Illustratively, the target identification information may be represented as a Via header, and the value of the Via header may be a self network element type of the signaling interworking gateway, i.e., a self FQDN (Fully Qualified Domain Name).
Exemplarily, as shown in fig. 2, fig. 2 is a schematic signaling interaction diagram of an indirect communication message passing method according to an embodiment of the present invention:
and the enterprise private network element (such as the AMF) sends a service request to the signaling interworking gateway, wherein the destination address of the service request is the address of the signaling interworking gateway.
The signaling interworking gateway receives the service request, determines a target network element (such as a UDM) corresponding to the service request, wherein the target network element (UDM) belongs to a network element in an operator network, updates a destination address of the service request to an address of the target network element, obtains the target service request, and sends the target service request to the target network element.
And the operator target network element receives the target service request and feeds back a response message of the target service request to the signaling intercommunication gateway, wherein the response message comprises an example identifier of the target network element.
And the signaling intercommunication gateway receives a response message fed back by the target network element according to the target service request, deletes the example identifier of the target network element in the response message to obtain a message to be returned, and forwards the message to be returned to the enterprise private network element.
And the enterprise private network element receives the message to be returned.
Exemplarily, as shown in fig. 3, fig. 3 is a schematic signaling interaction diagram of another indirect communication message passing method according to an embodiment of the present invention:
the enterprise private network element (such as AMF) can be set to be in a direct communication mode, a destination address of a network element UDM of an operator to be communicated is set to be an address of a signaling interworking gateway, a subscription request is sent to the signaling interworking gateway, a value of field authority in an HTTP/2 header of the subscription request can be an address of the signaling interworking gateway, a value of field path can be a service of the requested UDM, a value of field user-agent can be NF instance ID of the private network AMF, and a callback URI value can be a callback address of the private network AMF. Wherein the requested service of the UDM may be SUPI of the AMF.
The operator target network element UDM may be set to an indirect communication mode and the service communication agent, which may be an SCP network element, is set to a signalling interworking gateway.
The signaling intercommunication gateway receives the subscription request, selects an operator network element UDM according to SUPI in the path, modifies the value of field authority in the HTTP/2 header of the original subscription request into the address of the operator network element UDM, simultaneously adds a Via header, the value is 'self network element type-self FQDN', other contents are kept unchanged, obtains a target service request, and sends the target service request to the target network element UDM.
And the Target network element UDM receives the Target service request and responds, the response message contains a callback uniform resource descriptor, a 3gpp-Sbi-Producer-Id header field with the value of NF instance ID of the Target network element UDM is inserted into the response message, a 3 gpp-Sbi-Target-apot header field with the value of a callback address of the enterprise private network element AMF is inserted into the response message, and the response message is fed back to the signaling interworking gateway.
And the signaling interworking gateway receives the response message, deletes the 3gpp-Sbi-Target-apiRoot header field and the 3gpp-Sbi-Producer-Id header field in the response message to obtain a message to be returned, and forwards the message to be returned to the enterprise private network element corresponding to the callback uniform resource descriptor.
And the enterprise private network element receives the message to be returned.
Corresponding to the indirect communication message passing method provided in the foregoing embodiment, an embodiment of the present invention further provides an indirect communication message passing system, as shown in fig. 4, where the system 400 includes: an enterprise private network element 410, a signaling interworking gateway 420, and an operator network element 430;
the enterprise private network element 410 is configured to send a service request to the signaling interworking gateway 420, where a destination address of the service request is an address of the signaling interworking gateway 420;
the signaling interworking gateway 420 is configured to receive the service request, determine a target network element corresponding to the service request, where the target network element belongs to a network element in the operator network, update a destination address of the service request to an address of the target network element, obtain the target service request, and send the target service request to the target network element;
the target network element is configured to receive the target service request, and feed back a response message of the target service request to the signaling interworking gateway 420, where the response message includes an instance identifier of the target network element;
the signaling interworking gateway 420 is configured to receive a response message fed back by the target network element according to the target service request, delete the instance identifier of the target network element in the response message, obtain a message to be returned, and forward the message to be returned to the enterprise private network element 410;
and the enterprise private network element 410 is configured to receive the message to be returned.
In the indirect communication message transmission system provided in the embodiment of the present invention, the signaling interworking gateway updates the destination address of the service request sent by the enterprise private network element, i.e., the address of the signaling interworking gateway, to the address of the target network element determined for the service request, obtains the target service request, deletes the instance identifier of the target network element in the response message fed back by the target service request by the target network element, obtains the message to be returned, and forwards the message to be returned to the enterprise private network element, the method and the device enable the enterprise private network element to be unable to know the information of the network element responding to the service request in the operator network, realize the network isolation between the enterprise private network and the operator network, and can normally forward the communication message on the premise of ensuring that the operator network element is invisible to the enterprise private network element, thereby realizing the safe transmission of the communication message between the enterprise private network and the operator network.
In some embodiments, the service request includes: requested service information;
the signaling interworking gateway 420 is specifically configured to determine a target network element corresponding to the service request according to the requested service information.
In some embodiments, the service request is a subscription request, and the service request includes: a uniform resource descriptor is called back by the network element of the enterprise private network; the response message also comprises a callback uniform resource descriptor and a target field with the value of the callback uniform resource descriptor,
the signaling interworking gateway 420 is specifically configured to delete the instance identifier of the target network element and the target field whose value is the callback uniform resource descriptor in the response message, obtain a message to be returned, and send the message to be returned to the enterprise private network element corresponding to the callback uniform resource descriptor.
In some embodiments, the signaling interworking gateway 420 is further configured to add target identification information in the target service request, where the target identification information is used to identify that the target service request is forwarded by the signaling interworking gateway;
the target network element is specifically configured to feed back a response message of the target service request to the signaling interworking gateway according to the target identification information.
In some embodiments, the aforementioned private enterprise network element 410 and the signaling interworking gateway 420, and the signaling interworking gateway 420 and the target network element send messages using HTTP/2 protocol version 2 of the hypertext transfer protocol.
The embodiment of the present invention further provides a gateway device, as shown in fig. 5, which includes a processor 501, a communication interface 502, a memory 503 and a communication bus 504, wherein the processor 501, the communication interface 502 and the memory 503 complete mutual communication through the communication bus 504,
a memory 503 for storing a computer program;
the processor 501, when executing the program stored in the memory 503, implements the following steps:
receiving a service request sent by an enterprise private network element, wherein the destination address of the service request is the address of a signaling intercommunication gateway;
determining a target network element corresponding to the service request, wherein the target network element belongs to network elements in an operator network;
updating the destination address of the service request to the address of the target network element to obtain a target service request;
sending a target service request to a target network element;
receiving a response message fed back by the target network element according to the target service request, wherein the response message comprises an example identifier of the target network element;
deleting the instance identifier of the target network element in the response message to obtain a message to be returned;
and forwarding the message to be returned to the enterprise private network element.
The gateway device provided by the embodiment of the invention updates the destination address of the service request sent by the enterprise private network element, namely the address of the signaling intercommunication gateway, into the address of the target network element determined for the service request, obtains the target service request, deletes the instance identifier of the target network element in the response message fed back by the target network element according to the target service request, obtains the message to be returned, and forwards the message to be returned to the enterprise private network element, so that the enterprise private network element cannot know the information of the network element responding to the service request in the operator network, the network isolation between the enterprise private network and the operator network is realized, the communication message can be normally forwarded on the premise of ensuring that the operator network element is invisible to the enterprise private network element, and the safe transmission of the communication message between the enterprise private network and the operator network is realized.
The communication bus mentioned in the gateway device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the gateway device and other devices.
The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
In yet another embodiment of the present invention, a computer-readable storage medium is further provided, in which a computer program is stored, and the computer program, when executed by a processor, implements the steps of any one of the above indirect communication messaging methods to achieve the same technical effect.
In yet another embodiment of the present invention, there is also provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the steps of any one of the indirect communication messaging methods of the above embodiments to achieve the same technical effect.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system/gateway device embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to part of the description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (12)
1. An indirect communication message transfer method applied to a signaling interworking gateway, the method comprising:
receiving a service request sent by an enterprise private network element, wherein the destination address of the service request is the address of the signaling interworking gateway;
determining a target network element corresponding to the service request, wherein the target network element belongs to network elements in an operator network;
updating the destination address of the service request to the address of the target network element to obtain a target service request;
sending the target service request to the target network element;
receiving a response message fed back by the target network element according to the target service request, wherein the response message comprises an example identifier of the target network element;
deleting the instance identifier of the target network element in the response message to obtain a message to be returned;
and forwarding the message to be returned to the enterprise private network element.
2. The method of claim 1, wherein the service request comprises: requested service information; the determining of the target network element corresponding to the service request includes:
and determining a target network element corresponding to the service request according to the requested service information.
3. The method of claim 1, wherein the service request is a subscription request, and wherein the service request comprises: the callback uniform resource descriptor of the enterprise private network element; the response message further includes the callback uniform resource descriptor and a target field with a value of the callback uniform resource descriptor, and the deleting the instance identifier of the target network element in the response message to obtain the message to be returned includes:
deleting the instance identifier of the target network element and the target field of which the value is the callback uniform resource descriptor in the response message to obtain a message to be returned;
forwarding the message to be returned to the enterprise private network element, including:
and sending the message to be returned to the enterprise private network element corresponding to the callback uniform resource descriptor.
4. The method according to any one of claims 1-3, further comprising:
and adding target identification information in the target service request, wherein the target identification information is used for identifying that the target service request is forwarded by the signaling interworking gateway.
5. The method of any of claims 1-3, wherein the message is sent between the enterprise private network element and the signaling interworking gateway, and between the signaling interworking gateway and the target network element using HTTP version 2/2 protocol.
6. An indirect communication messaging system, the system comprising: an enterprise private network element, a signaling intercommunication gateway and an operator network element;
the enterprise private network element is used for sending a service request to the signaling interworking gateway, wherein the destination address of the service request is the address of the signaling interworking gateway;
the signaling interworking gateway is configured to receive the service request, determine a target network element corresponding to the service request, where the target network element belongs to a network element in an operator network, update a destination address of the service request to an address of the target network element, obtain a target service request, and send the target service request to the target network element;
the target network element is configured to receive the target service request, and feed back a response message of the target service request to the signaling interworking gateway, where the response message includes an instance identifier of the target network element;
the signaling interworking gateway is configured to receive a response message fed back by the target network element according to the target service request, delete the instance identifier of the target network element in the response message, obtain a message to be returned, and forward the message to be returned to the private network element of the enterprise;
and the enterprise private network element is used for receiving the message to be returned.
7. The system of claim 6, wherein the service request comprises: requested service information;
the signaling interworking gateway is specifically configured to determine a target network element corresponding to the service request according to the service information of the request.
8. The system of claim 6, wherein the service request is a subscription request, and wherein the service request comprises: the callback uniform resource descriptor of the enterprise private network element; the response message further includes the callback uniform resource descriptor and a target field whose value is the callback uniform resource descriptor,
the signaling interworking gateway is specifically configured to delete the instance identifier of the target network element and the target field whose value is the callback uniform resource descriptor in the response message, obtain a to-be-returned message, and send the to-be-returned message to the enterprise private network element corresponding to the callback uniform resource descriptor.
9. The system according to any of claims 6-8, wherein said signaling interworking gateway is further configured to add target identification information to said target service request, said target identification information being used to identify that said target service request is forwarded by said signaling interworking gateway;
and the target network element is specifically configured to feed back a response message of the target service request to the signaling interworking gateway according to the target identification information.
10. The system according to any of claims 6-8, wherein said enterprise private network element and said signaling interworking gateway, and said signaling interworking gateway and said target network element send messages using HTTP/2 protocol version 2 of the hypertext transfer protocol.
11. The gateway equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing the communication between the processor and the communication interface through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any one of claims 1 to 5 when executing a program stored in the memory.
12. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of the claims 1-5.
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| CN202210557973.XA CN114979985A (en) | 2022-05-19 | 2022-05-19 | Indirect communication message transmission method, system and gateway equipment |
| PCT/CN2022/127916 WO2023221404A1 (en) | 2022-05-19 | 2022-10-27 | Indirect communication message transmission method, system, and gateway device |
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| CN202210557973.XA CN114979985A (en) | 2022-05-19 | 2022-05-19 | Indirect communication message transmission method, system and gateway equipment |
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| WO2023221404A1 (en) * | 2022-05-19 | 2023-11-23 | 中国电信股份有限公司 | Indirect communication message transmission method, system, and gateway device |
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