CN115695380A

CN115695380A - Channel establishing method, device, network equipment and storage medium

Info

Publication number: CN115695380A
Application number: CN202110857978.XA
Authority: CN
Inventors: 白雪茜; 周越; 刘景磊; 张剑寅
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2023-02-03
Also published as: WO2023005983A1

Abstract

The embodiment of the invention discloses a channel establishing method, a channel establishing device, network equipment and a storage medium. The method comprises the following steps: a first service controller receives a first request from a second service controller, wherein the first request is used for requesting to establish a data channel; the first service controller is used for service processing based on a data channel, and the second service controller is used for processing call service and interacting with the second service controller; and the first service controller obtains first information for establishing a data channel from a media server based on the first request, and sends first confirmation information to the second service controller, wherein the first confirmation information comprises the first information.

Description

Channel establishing method, device, network equipment and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a channel establishment method, apparatus, network device, and storage medium.

Background

Web Real-Time Communication (WebRTC) is an Application Programming Interface (API) that supports Real-Time audio/video calls through a browser. With WebRTC, users can add real-time communication functionality to open standard based applications. The WebRTC Data Channel (DC) is a framework for audio/video and Data transmission between two browsers, and can implement synchronous Data exchange in the audio/video communication process.

In the related technical solutions, a mechanism for establishing a Data Channel and an interaction mechanism between a Data Channel Server (Data Channel Server), a Data Channel Application Repository (Data Channel Application Repository) and an IP Multimedia Subsystem (IMS, IP Multimedia Subsystem) network element are not explicitly described.

Disclosure of Invention

In order to solve the existing technical problem, embodiments of the present invention provide a channel establishing method, apparatus, network device, and storage medium.

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

in a first aspect, an embodiment of the present invention provides a method for establishing a channel, where the method includes:

a first service controller receives a first request from a second service controller, wherein the first request is used for requesting to establish a data channel; the first service controller is used for service processing based on a data channel, and the second service controller is used for processing call service and interacting with the second service controller;

and the first service controller acquires first information for establishing a data channel from a media server based on the first request, and sends first confirmation information to the second service controller, wherein the first confirmation information comprises the first information.

In the above solution, the first request is from a first terminal device of a first network; the first service controller receives the first request via a border controller, a session controller and the second service controller;

the first information is used for establishing a data channel between the first terminal device and the media server.

In the above solution, the first request is from a network device of a second network; the first service controller receiving the first request via the second service controller;

the first information is used for establishing a data channel between a first terminal device of a first network and the media server.

In the above solution, the first information includes at least one of the following information: data channel identification, data channel-related Internet Protocol (IP) address, data channel-related port number, data channel-related transport protocol information.

In the above scheme, the method further comprises: and the first service controller sends the address information of the first service controller to the media server.

In the foregoing solution, the method further includes: under the condition that the data channel is established, the first service controller receives a second request, wherein the second request is used for requesting to establish an application channel;

the first service controller obtains second information for establishing an application channel from the media server based on the second request.

In the above solution, the second request is from a first terminal device of a first network; the first traffic controller receiving the second request via a border controller, a session controller, and the second traffic controller;

the second information is used for establishing an application channel between the first terminal device and the media server.

In the above scheme, the method further comprises: and the first service controller sends second confirmation information to the second service controller, wherein the second confirmation information comprises the second information.

In the above solution, the second request is from a network device of a second network;

the second information is used for establishing an application channel between the terminal equipment of the second network and the media server.

In the above scheme, the method further comprises: the first service controller obtains third information of terminal equipment of a first network, wherein the third information is used for establishing an application channel between the terminal equipment of the first network and the media server;

the first service controller sends the third information to the media server;

and the first service controller sends third confirmation information to network equipment of the second network, wherein the third confirmation information comprises the second information.

In the foregoing solution, the second information includes at least one of the following information: the application channel flow identification, the IP address related to the application channel, the port number related to the application channel and the transmission protocol information related to the application channel.

In a second aspect, an embodiment of the present invention further provides a channel establishing method, where the method includes:

the second service controller receives the first request and sends the first request to the first service controller; the first request is used for requesting to establish a data channel; the first service controller is used for service processing based on a data channel, and the second service controller is used for processing call service and interacting with the second service controller;

and the second service controller receives first confirmation information from the first service controller, wherein the first confirmation information comprises first information used for establishing a data channel.

In the above solution, the first request is from a first terminal device of a first network; the second traffic controller receiving the first request via a border controller and a session controller;

In the above scheme, the method further comprises: the second service controller sends a first request response to the first terminal device, wherein the first request response is used for indicating that the first request is confirmed; the first request reply includes the first information.

In the above scheme, the method further comprises: the second service controller negotiates with network equipment of a second network for information for establishing a data path.

In the above solution, the first request is from a network device of a second network;

In the above scheme, the method further comprises: the second service controller sends the first information to the first terminal equipment and receives fourth confirmation information from the first terminal equipment; the fourth confirmation information indicates that the first information for establishing the data channel is confirmed;

and the second service controller sends a first request response to the network equipment of the second network, wherein the first request response is used for indicating that the first request is confirmed.

In the foregoing solution, the first information includes at least one of the following information: the data channel identification, the IP address related to the data channel, the port number related to the data channel and the transmission protocol information related to the data channel.

In the above scheme, the method further comprises: under the condition that the data channel is established, the second service controller receives a second request and sends the second request to the first service controller; the second request is used for requesting to establish an application channel, and the second request comes from the first terminal equipment of the first network; the second traffic controller receives the second request via the border controller and the session controller.

In the above scheme, the method further comprises: and the second service controller receives second confirmation information from the first service controller, wherein the second confirmation information comprises second information, and the second information is used for establishing an application channel between the first terminal equipment and the media server.

In the above scheme, the method further comprises: the second service controller sends a second request response to the first terminal device, wherein the second request response is used for indicating that the second request is confirmed; the second request response includes the second information.

In the above scheme, the method further comprises: the second service controller negotiates with a network device of a second network about information for establishing an application channel, where the information for establishing the application channel is used to establish the application channel between a second terminal device of the second network and the media server.

In a third aspect, an embodiment of the present invention further provides a service controller, where the service controller is a first service controller; the service controller includes: the device comprises a first receiving unit, a first processing unit and a first sending unit; wherein the content of the first and second substances,

the first receiving unit is configured to receive a first request from a second service controller, where the first request is used to request establishment of a data channel; the first service controller is used for service processing based on a data channel, and the second service controller is used for processing call service and interacting with the second service controller;

the first processing unit is used for obtaining first information for establishing a data channel from a media server based on the first request;

the first sending unit is configured to send first acknowledgement information to the second service controller, where the first acknowledgement information includes the first information.

In a fourth aspect, an embodiment of the present invention further provides a service controller, where the service controller is a second service controller; the service controller comprises: a second receiving unit and a second transmitting unit; wherein the content of the first and second substances,

the second receiving unit is configured to receive a first request, where the first request is used to request to establish a data channel; the first service controller is used for service processing based on a data channel, and the second service controller is used for processing call service and interacting with the second service controller;

the second sending unit is configured to send the first request to a first service controller;

the second receiving unit is further configured to receive first acknowledgement information from the first service controller, where the first acknowledgement information includes first information used for establishing a data channel.

In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method according to the first aspect or the second aspect of the embodiment of the present invention.

In a sixth aspect, an embodiment of the present invention further provides a network device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps of the method in the first aspect or the second aspect of the embodiment of the present invention.

In the channel establishing method, apparatus, network device and storage medium provided in the embodiments of the present invention, a first service controller receives a first request from a second service controller, where the first request is used to request to establish a data channel; the first service controller is used for service processing based on a data channel, and the second service controller is used for processing call service and interacting with the second service controller; and the first service controller obtains first information for establishing a data channel from a media server based on the first request, and sends first confirmation information to the second service controller, wherein the first confirmation information comprises the first information. Through the technical scheme of the embodiment of the invention, the establishment of the DC channel is realized on the basis of not influencing the IMS network by combining the Data Channel (DC) technology and the IMS voice flow.

Drawings

Fig. 1 is a first schematic flow chart of a channel establishing method according to an embodiment of the present invention;

fig. 2 is a second flowchart illustrating a channel establishing method according to an embodiment of the present invention;

fig. 3 is a third schematic flow chart of a channel establishing method according to an embodiment of the present invention;

fig. 4 is a fourth flowchart illustrating a channel establishing method according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating an interaction flow of a channel establishment method according to an embodiment of the present invention;

fig. 6 is a schematic interaction flow diagram of a channel establishment method according to an embodiment of the present invention;

fig. 7 is a third schematic interaction flow chart of a channel establishing method according to an embodiment of the present invention;

fig. 8 is a fourth schematic interaction flow chart of the channel establishing method according to the embodiment of the present invention;

fig. 9 is a first schematic structural diagram of a service controller according to an embodiment of the present invention;

fig. 10 is a schematic diagram illustrating a second configuration of a service controller according to an embodiment of the present invention;

fig. 11 is a schematic diagram of a hardware structure of a network device according to an embodiment of the present invention.

Detailed Description

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

The WebRTC system architecture according to the embodiment of the present invention generally includes: a home network, which may also be referred to as a Local (Local) network or a calling network, and a peer network, which may also be referred to as a Remote network, a Remote (Remote) network or a called network. For example, for a network on one side (such as a home network or an opposite network), the method may include: a terminal, a border controller, a session controller, a base service controller, a new service controller and a new media server. The terminal, which may also be referred to as a terminal device or a communication device, has the capability of registering, initiating, and receiving the fairy tale. And the boundary controller is used for boundary signaling control and media interaction between the terminal and the network. The session controller is used as a session management device and is provided with session request and routing capability. And the basic service controller is responsible for controlling and negotiating basic call services and has the capability of interacting call/application events with the new service controller. And the new service controller is responsible for completing new service control and media negotiation based on the DC channel, performing media resource management on the new media server, and has the capability of interacting call/application events with the basic service controller and the capability of interacting media resources with the new media server. The new media server is used as a media bearing device and is responsible for media resource allocation and management, negotiation channel establishment with the new service controller and the like.

For example, the home network and the peer network may be respectively provided with a new media server, or the home network and the peer network may share the same new media server.

Compared with the network element in the related technical solution, the new service controller in this embodiment may correspond to a Data Channel Server (Data Channel Server), a Data Channel Application Repository (Data Channel Application Repository), and an Offline program (Offline procedure), and the new media Server may correspond to the Data Channel Server, that is, the Data Channel Server may correspond to the new service controller and the new media Server in this Application, the Data Channel Application Repository may correspond to the new service controller in this Application, and the Offline program may correspond to the new service controller in this Application.

Based at least on the above system architecture, the following embodiments of the present invention are proposed.

The embodiment of the invention provides a channel establishing method. Fig. 1 is a first schematic flow chart of a channel establishing method according to an embodiment of the present invention; as shown in fig. 1, the method includes:

step 101: a first service controller receives a first request from a second service controller, wherein the first request is used for requesting to establish a data channel; the first service controller is used for service processing based on a data channel, and the second service controller is used for processing call service and interacting with the second service controller;

step 102: and the first service controller obtains first information for establishing a data channel from a media server based on the first request, and sends first confirmation information to the second service controller, wherein the first confirmation information comprises the first information.

The channel establishing method of the present embodiment is applied to a first service controller, which is equivalent to a new service controller in the above system architecture example, or may also be referred to as a Data Channel (DC) service controller; the second traffic controller corresponds to the base traffic controller in the above system architecture example. The media server corresponds to the new media server in the above system architecture example.

In this embodiment, the first information includes at least one of the following information: data channel identification, data channel-related Internet Protocol (IP) address, data channel-related port number, data channel-related transport protocol information.

Through the technical scheme of the embodiment of the invention, the establishment of the DC channel is realized on the basis of not influencing an IMS network by combining a Data Channel (DC) technology and an IMS voice flow, and an interactive flow based on a first service controller, a second service controller and a media server is provided, namely the establishment of the DC channel and the transmission of media information based on the DC channel are realized on the basis of fusing an IMS call flow, the diversity of transmittable data types is enhanced, and the network capability and the basis are provided for the expansion of the 5G call service based on the DC channel.

In an alternative embodiment, the first request is from a first terminal device of a first network; the first traffic controller receiving the first request via a border controller, a session controller, and the second traffic controller; the first information is used for establishing a data channel between the first terminal device and the media server.

In this embodiment, the first request for requesting to establish the data channel is initiated by the first terminal device of the first network (i.e., the home network). Illustratively, the first terminal device may serve as a calling device to initiate a call request, where the call request may carry the first request; the call request reaches the second service controller via the border controller and the session controller; and if the second service controller has a call service processing function, the second service controller performs call service processing based on the call request, obtains the first request from the call request, and sends the first request to the first service controller.

In another alternative embodiment, the first request is from a network device of a second network; the first service controller receiving the first request via the second service controller; the first information is used for establishing a data channel between a first terminal device of a first network and the media server.

In this embodiment, the first request for requesting to establish the data channel is initiated by a network device of the second network (i.e., a peer network); the network device may be any network device in the second network, for example, a session controller in the second network, and the network device is not limited in this embodiment. Illustratively, the network device sends a first request to the second traffic controller, which is sent by the second traffic controller to the first traffic controller.

In this embodiment, the first service controller obtains first information for establishing a data channel from a media server based on the first request, sends the first information to the second service controller through first confirmation information, and sends the first information to the first terminal device through a first request response by the second service controller, so that the data channel between the first terminal device and the media server is established.

In some optional embodiments of the invention, the method further comprises: and the first service controller sends the address information of the first service controller to the media server. In order to complete the routing of the late media subscription.

Based on the above embodiment, as shown in fig. 2, on the basis of step 101 to step 102, the method further includes:

step 103: under the condition that the data channel is established, the first service controller receives a second request, wherein the second request is used for requesting the establishment of an application channel;

step 104: the first service controller obtains second information for establishing an application channel from the media server based on the second request.

In this embodiment, when the data channel is established, the Application channel (Application channel) may be established through interaction among the first service controller, the second service controller, and the media server under initiation of the terminal device of the first network or the network device of the second network.

In this embodiment, the second information includes at least one of the following information: the application channel flow identification, the IP address related to the application channel, the port number related to the application channel and the transmission protocol information related to the application channel.

As an embodiment, the second request is from a first terminal device of a first network; the first service controller receives the second request via a border controller, a session controller and the second service controller; the second information is used for establishing an application channel between the first terminal device and the media server.

In this embodiment, the second request for establishing the application channel between the first terminal device and the media server is initiated by the first terminal device of the first network (i.e., the home network). Illustratively, the first terminal device may be used as a calling device to initiate an application channel establishment request (i.e., a second request), where the second request reaches the second service controller via the border controller and the session controller, and the second service controller sends the second request to the first service controller; illustratively, the second service controller may send the second request to the first service controller via an application channel request event notification message (or a first event notification message).

In some optional embodiments of the invention, the method further comprises: and the first service controller sends second confirmation information to the second service controller, wherein the second confirmation information comprises the second information.

In this embodiment, that is, in a scenario where the second request for establishing the application channel between the first terminal device and the media server is from the first terminal device of the first network (i.e., the home network), after obtaining the second information for establishing the application channel from the media server based on the second request, the first service controller sends second confirmation information to the second service controller, where the second confirmation information is, on one hand, confirmation of the first event notification message carrying the second request, and on the other hand, may send the second information to the second service controller through the second confirmation information, so that the subsequent second service controller may feed back the second information to the first terminal device.

As another embodiment, the second request is from a network device of a second network; the second information is used for establishing an application channel between the terminal equipment of the second network and the media server.

In this embodiment, the second request for establishing the application channel between the first terminal device and the media server is initiated by a network device of a second network (i.e., a peer network); the network device may be any network device in the second network, for example, a second service controller in the second network, and the network device is not limited in this embodiment.

In some optional embodiments of the invention, the method further comprises: the first service controller obtains third information of terminal equipment of a first network, wherein the third information is used for establishing an application channel between the terminal equipment of the first network and the media server; the first service controller sends the third information to the media server; and the first service controller sends third confirmation information to network equipment of the second network, wherein the third confirmation information comprises the second information.

In this embodiment, that is, in a scenario where the second request for establishing the application channel between the first terminal device and the media server is from a network device of a second network (i.e., an opposite-end network), the first service controller obtains third information of the terminal device in the first network by performing an application channel negotiation with the terminal device in the first network, where the third information may be, for example, related information of the terminal device in the first network, and is used to establish the application channel between the terminal device of the first network and the media server. Further, the first service controller sends the third information to the media server, so that the media server updates the information for establishing the application channel. And the first service controller sends third acknowledgement information to the network device of the second network, where the third acknowledgement information includes the second information, and on one hand, informs the network device of the second network (i.e., the peer network) that the first network (i.e., the home network) is ready to establish the application channel through the third acknowledgement information, and on the other hand, sends the second information to the network device of the second network (i.e., the peer network) through the third acknowledgement information, so as to establish the application channel between the second network and the media server.

Based on the above embodiment, the embodiment of the invention also provides a channel establishing method. Fig. 3 is a third schematic flow chart of a channel establishing method according to an embodiment of the present invention; as shown in fig. 3, the method includes:

step 201: the second service controller receives the first request and sends the first request to the first service controller; the first request is used for requesting to establish a data channel; the first service controller is used for service processing based on a data channel, and the second service controller is used for processing call service and interacting with the second service controller;

step 202: and the second service controller receives first confirmation information from the first service controller, wherein the first confirmation information comprises first information used for establishing a data channel.

The channel establishment method of the present embodiment is applied to a second service controller, where the second service controller is equivalent to the basic service controller in the system architecture example described above. The first traffic controller corresponds to the new traffic controller in the above system architecture example, or may also be referred to as a Data Channel (DC) traffic controller; the media server corresponds to the new media server in the above system architecture example.

In this embodiment, the first information includes at least one of the following information: the data channel identification, the IP address related to the data channel, the port number related to the data channel, and the transmission protocol information related to the data channel.

In an alternative embodiment, the first request is from a first terminal device of a first network; the second traffic controller receiving the first request via a border controller and a session controller; the first information is used for establishing a data channel between the first terminal device and the media server.

In some optional embodiments of the invention, the method further comprises: the second service controller sends a first request response to the first terminal device, wherein the first request response is used for indicating that the first request is confirmed; the first request reply includes the first information.

In this embodiment, in a scenario that a first request for requesting establishment of a data channel is from a first terminal device of a first network (i.e., a home network), the second service controller sends the first information to the first terminal device through a first request response, where the first request response is, on one hand, an acknowledgement to the first request, and on the other hand, the first information may be sent to the first terminal device through the first request response, so as to establish the data channel between the first terminal device and a media server.

Optionally, the method further comprises: the second service controller negotiates with network equipment of a second network for information used to establish a data channel.

In this embodiment, also in a scenario where the first request for requesting to establish the data channel is from a first terminal device of a first network (i.e., a home network), the second service controller may further perform call negotiation with a network device of a second network, and negotiate information for establishing the data channel.

In another optional embodiment, the first request is from a network device of a second network; the first information is used for establishing a data channel between a first terminal device of a first network and the media server.

In this embodiment, the first request for requesting to establish the data channel is initiated by a network device of a second network (i.e., a peer network); the network device may be any network device in the second network, for example, a session controller in the second network, and the network device is not limited in this embodiment. Illustratively, the network device sends a first request to a second service controller, and the second service controller sends the first request to the first service controller, so that the first service controller performs channel negotiation with a media server based on the first request, and obtains first information for establishing a data channel from the media server.

In some optional embodiments of the invention, the method further comprises: the second service controller sends the first information to the first terminal equipment and receives fourth confirmation information from the first terminal equipment; the fourth confirmation information indicates that the first information for establishing the data channel is confirmed; and the second service controller sends a first request response to the network equipment of the second network, wherein the first request response is used for indicating that the first request is confirmed. For example, the first request reply includes relevant information that is used by the first terminal device to establish a data channel with the media server.

Based on the above embodiment, in an implementation manner, as shown in fig. 4, on the basis of step 201 to step 202, the method further includes:

step 203: under the condition that the data channel is established, the second service controller receives a second request and sends the second request to the first service controller; the second request is used for requesting to establish an application channel, and the second request comes from the first terminal equipment of the first network; the second traffic controller receives the second request via a border controller and a session controller.

In this embodiment, when the data channel is established, an Application channel (Application channel) may be established through interaction among the first service controller, the second service controller, and the media server at the initiation of the first terminal device in the first network.

The embodiment mainly aims at an application scenario in which a first terminal device of a first network (i.e., a home network) initiates establishment of an application channel, and specifically, a second request is sent by the first terminal device, and is received by a second service controller through a boundary controller and a session controller and sent to the first service controller; further, the first service controller obtains second information for establishing the application channel from the media server based on the second request.

In some optional embodiments, the method further comprises: and the second service controller receives second confirmation information from the first service controller, wherein the second confirmation information comprises second information, and the second information is used for establishing an application channel between the first terminal equipment and the media server.

In some optional embodiments of the invention, the method further comprises: the second service controller sends a second request response to the first terminal device, wherein the second request response is used for indicating that the second request is confirmed; the second request reply includes the second information.

In this embodiment, the second service controller sends the second information to the first terminal device through a second request response, where on one hand, the second request response is a confirmation of the second request, and on the other hand, the second information may be sent to the first terminal device through the second request response, so as to establish an application channel between the first terminal device and the media server.

In some optional embodiments of the invention, the method further comprises: the second service controller negotiates with network equipment of a second network about information for establishing an application channel, and the information for establishing the application channel is used for establishing an application channel between second terminal equipment of the second network and the media server.

Through the technical scheme of the embodiment of the invention, the establishment of the DC channel is realized on the basis of not influencing the IMS network by combining the Data Channel (DC) technology and the IMS voice flow, and the interactive flow based on the first service controller, the second service controller and the media server is provided, namely the establishment of the DC channel and the transmission of the media information based on the DC channel are realized on the basis of fusing the IMS call flow, the diversity of transmittable data types is enhanced, and the network capability and the basis are provided for the 5G call service expansion based on the DC channel. In addition, a method for establishing the application channel is also provided, and an implementation mechanism for initiating the establishment of the application channel from the terminal to the network side or the network side is realized.

The following describes a channel establishment method according to an embodiment of the present invention with reference to a specific example.

Example 1

The present example is a specific example of data channel establishment initiated by a first terminal device (in this example, simply referred to as a home terminal device) of a first network (i.e., a home network), and in this example, a network device of a second network (i.e., an opposite terminal network) is simply referred to as an opposite terminal network device. Fig. 5 is a first schematic interaction flow chart of a channel establishing method according to an embodiment of the present invention; as shown in fig. 5, the method includes:

step 301: the home terminal equipment initiates a call and data channel establishment request, the data channel establishment request is routed to the session controller by the boundary controller, and is triggered to the second service controller through the session controller by user service verification.

The call and data channel establishment request comprises a call request on one hand and a data channel establishment request on the other hand. The data channel establishment request corresponds to the first request in the above embodiment.

Step 302: and the second service controller informs the first service controller of the data channel establishment request through a data channel establishment request event.

Here, the second service controller performs call service processing based on the call request, obtains the data channel establishment request from the call request, and sends the data channel establishment request to the first service controller.

Step 303: and the first service controller performs service logic confirmation on the user based on the data channel establishing request, performs data channel negotiation with the media server after confirming that the user opens a new service (such as a DC service), and acquires information such as a data channel identifier, an IP address related to the data channel, a port number related to the data channel, transmission protocol information related to the data channel and the like.

The information such as the data channel identifier, the IP address related to the data channel, the port number related to the data channel, and the transmission protocol information related to the data channel is equivalent to the first information in the above embodiment.

Step 304: the method comprises the steps that interaction of data channel media subscription information is carried out between a first service controller and a media server, specifically, address information of the first service controller is informed to the media server, so that routing of later-stage media subscription is completed.

Step 305: the first service controller sends a data channel establishment request event confirmation to the second service controller so as to confirm the data channel establishment request.

Here, the first information is included in the data channel establishment request event confirmation.

Step 306: after receiving the confirmation of the data channel establishment request event of the first service controller, the second service controller triggers data channel negotiation with the opposite-end network equipment so as to negotiate relevant information for establishing the data channel between the opposite-end network equipment.

Step 307: and the second service controller sends a call and data channel establishment confirmation to the home terminal equipment, and the call and data channel establishment confirmation message is transmitted to the home terminal equipment through the session controller and the boundary controller.

Here, the call and data channel establishment confirmation corresponds to the first request response in the above embodiment, and the call and data channel establishment confirmation includes the first information.

And at this point, the data channel initiated by the terminal equipment at the home terminal is established. In embodiments of the present invention, the data channel may also be referred to as a bootstrap channel.

Step 308: and establishing the call connection of the two ends.

Example two

The present example is a specific example of data channel establishment initiated by a network device (referred to as a peer network device for short) of a second network (referred to as a peer network), and in the present example, a first terminal device of a first network (referred to as a home network) is referred to as a home terminal device for short. Fig. 6 is a schematic interaction flow diagram of a channel establishment method according to an embodiment of the present invention; as shown in fig. 6, the method includes:

step 401: the opposite terminal network equipment initiates a call and data channel establishment request to the second service controller, the call and data channel establishment request is routed to the session controller by the boundary controller, and is triggered to the second service controller through the session controller by user service verification.

Step 402: and the second service controller informs the first service controller of the data channel establishment request through a data channel establishment request event.

Step 403: and the first service controller performs service logic confirmation on the user based on the data channel establishing request, performs data channel negotiation with the media server after confirming that the user opens a new service (such as a DC service), and acquires information such as a data channel identifier, an IP address related to the data channel, a port number related to the data channel, transmission protocol information related to the data channel and the like.

The information such as the data channel identifier, the IP address related to the data channel, the port number related to the data channel, and the transmission protocol information related to the data channel is equivalent to the first information in the above embodiment

Step 404: the method comprises the steps that interaction of data channel media subscription information is carried out between a first service controller and a media server, specifically, address information of the first service controller is informed to the media server, so that routing of later-stage media subscription is completed.

Step 405: the first service controller sends a data channel establishment request event confirmation to the second service controller so as to confirm the data channel establishment request.

Step 406: after receiving the confirmation of the data channel establishment request event of the first service controller, the second service controller triggers the data channel negotiation with the local terminal equipment so as to negotiate the relevant information for establishing the data channel between the local terminal equipment.

Step 407: and the terminal equipment at the local end sends a data channel negotiation confirmation message to the second service controller to indicate that the data channel negotiation at the local end is completed.

Here, the data channel negotiation acknowledgement message may include information that the home terminal device is configured to establish a connection with the media server.

Step 408: and the second service controller sends a call and data channel establishment confirmation message to the opposite terminal network equipment, wherein the call and data channel establishment confirmation message comprises information used for establishing connection between the local terminal equipment and the media server.

And at this point, the data channel initiated by the opposite-end network equipment is established.

Step 409: and establishing the call connection of the two ends.

Example three

The present example is a specific example of application channel establishment initiated by a first terminal device (in this example, simply referred to as a home terminal device) of a first network (i.e., a home network), and in this example, a network device of a second network (i.e., an opposite terminal network) is simply referred to as an opposite terminal network device. The premise of this example is that the data channel is established. Fig. 7 is a schematic diagram illustrating an interaction flow of a channel establishment method according to an embodiment of the present invention; as shown in fig. 7, the method includes:

step 501: the local terminal equipment initiates an application channel establishment request, and the application channel establishment request is routed to the session controller by the boundary controller and is routed to the second service controller by the session controller.

Here, the application channel establishment request corresponds to the second request in the above embodiment.

Step 502: the second service controller reports the application channel establishment request to the first service controller. Illustratively, the application channel establishment request may be reported to the first traffic controller via an application channel establishment request event notification.

Step 503: the first service controller and the media server negotiate the application channel to obtain the stream identifier of the application channel, the IP address related to the application channel, the port number related to the application channel and the transmission protocol information related to the application channel.

The application channel flow identifier, the IP address related to the application channel, the port number related to the application channel, and the transmission protocol information related to the application channel are equivalent to the second information in the above embodiment.

Step 504: the first service controller sends an application channel establishment request event confirmation message to the second service controller so as to confirm the application channel establishment request event notification.

Here, the confirmation of the application channel establishment request event corresponds to the second confirmation information in the above embodiment, and the confirmation of the application channel establishment request event includes the second information.

Step 505: after receiving the confirmation message of the application channel establishing request event, the second service controller triggers the application channel negotiation with the opposite terminal network equipment to obtain the relevant information of the opposite terminal equipment for establishing the application channel

Step 506: and the second service controller sends an application channel establishment response to the home terminal equipment, and the application channel establishment response is sent to the home terminal equipment through the session controller and the boundary controller.

Here, the application channel establishment response is equivalent to the second request response in the above embodiment, and the application channel establishment response includes the second information.

And at this point, the establishment of the application channel initiated by the home terminal equipment is completed.

Example four

The present example is a specific example of application channel establishment initiated by a network device (referred to as a peer network device for short) of a second network (referred to as a peer network), and in the present example, a first terminal device of a first network (referred to as a home network) is referred to as a home terminal device for short. The premise of this example is that the data channel is established. Fig. 8 is a fourth schematic interaction flow chart of the channel establishing method according to the embodiment of the present invention; as shown in fig. 8, the method includes:

step 601: the opposite terminal network equipment initiates an application channel establishment request to the first service controller.

Step 602: the first service controller and the media server negotiate the application channel to obtain the stream identifier of the application channel, the IP address related to the application channel, the port number related to the application channel and the transmission protocol information related to the application channel.

Step 603-step 604: the first service controller and the local terminal device perform application channel negotiation, and the local terminal device sends an application channel negotiation confirmation to the first service controller.

Here, the first service controller performs application channel negotiation with the home terminal device, and the first service controller obtains third information of the terminal device of the first network, where the third information is used to establish an application channel between the terminal device of the first network and the media server; that is, the third information may be included in the application channel negotiation acknowledgement.

Step 605: the first service controller and the media server perform application channel update negotiation, and update the relevant information of the application channel of the calling side to the media server.

Here, the first service controller sends the third information to a media server, so that the media server updates relevant information of the home network device for establishing the application channel.

Step 606: and after receiving the application channel updating confirmation message of the media server, the first service controller sends an application channel request confirmation message to the opposite terminal network equipment.

Here, the app channel request acknowledge message corresponds to the third acknowledge information in the above embodiment, and the app channel request acknowledge message may include the second information.

So far, the establishment of the application channel initiated by the opposite-end network device is completed.

Based on the foregoing embodiment, an embodiment of the present invention further provides a service controller, where the service controller is a first service controller. Fig. 9 is a first schematic structural diagram of a service controller according to an embodiment of the present invention; as shown in fig. 9, the traffic controller includes: a first receiving unit 11, a first processing unit 12 and a first transmitting unit 13; wherein, the first and the second end of the pipe are connected with each other,

the first receiving unit 11 is configured to receive a first request from a second service controller, where the first request is used to request to establish a data channel; the first service controller is used for service processing based on a data channel, and the second service controller is used for processing call service and interacting with the second service controller;

the first processing unit 12 is configured to obtain first information for establishing a data channel from a media server based on the first request;

the first sending unit 13 is configured to send first acknowledgement information to the second service controller, where the first acknowledgement information includes the first information.

In some optional embodiments of the invention, the first request is from a first terminal device of a first network; the first receiving unit 11 is configured to receive the first request through a border controller, a session controller, and the second traffic controller; the first information is used for establishing a data channel between the first terminal device and the media server.

In some optional embodiments of the invention, the first request is from a network device of a second network; the first receiving unit 11 is configured to receive the first request via the second service controller; the first information is used for establishing a data channel between a first terminal device of a first network and the media server.

In some optional embodiments of the invention, the first information comprises at least one of: the data channel identification, the IP address related to the data channel, the port number related to the data channel, and the transmission protocol information related to the data channel.

In some optional embodiments of the present invention, the first sending unit 13 is further configured to send address information of the first service controller to the media server.

In some optional embodiments of the present invention, the first receiving unit 11 is further configured to receive, if the data channel is already established, a second request, where the second request is used to request that an application channel is established;

the first processing unit 12 is further configured to obtain, from the media server, second information for establishing an application channel based on the second request.

In some optional embodiments of the invention, the second request is from a first terminal device of a first network; the first receiving unit 11 is configured to receive the second request through a border controller, a session controller, and the second service controller; the second information is used for establishing an application channel between the first terminal device and the media server.

In some optional embodiments of the present invention, the first sending unit 13 is further configured to send second acknowledgement information to the second service controller, where the second acknowledgement information includes the second information.

In some optional embodiments of the invention, the second request is from a network device of a second network; the second information is used for establishing an application channel between the terminal equipment of the second network and the media server.

In some optional embodiments of the present invention, the first receiving unit 11 is further configured to obtain third information of a terminal device of a first network, where the third information is used to establish an application channel between the terminal device of the first network and the media server;

the first sending unit 13 is further configured to send the third information to the media server; and further configured to send third acknowledgement information to the network device of the second network, where the third acknowledgement information includes the second information.

In some optional embodiments of the invention, the second information comprises at least one of: the application channel flow identification, the IP address related to the application channel, the port number related to the application channel and the transmission protocol information related to the application channel.

In the embodiment of the present invention, the first Processing Unit 12 in the service controller may be implemented by a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU), or a Programmable Gate Array (FPGA) in practical application; the first receiving unit 11 and the first sending unit 13 in the service controller can be implemented by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface, a protocol, and the like) and a transceiving antenna in practical application.

Based on the foregoing embodiment, an embodiment of the present invention further provides a service controller, where the service controller is a second service controller. Fig. 10 is a schematic diagram illustrating a second configuration of a service controller according to an embodiment of the present invention; as shown in fig. 10, the traffic controller includes: a second receiving unit 21 and a second transmitting unit 22; wherein, the first and the second end of the pipe are connected with each other,

the second receiving unit 21 is configured to receive a first request, where the first request is used to request to establish a data channel; the first service controller is used for processing services based on a data channel, and the second service controller is used for processing call services and interacting with the second service controller;

the second sending unit 22 is configured to send the first request to the first service controller;

the second receiving unit 21 is further configured to receive first acknowledgement information from the first service controller, where the first acknowledgement information includes first information used for establishing a data channel.

In some optional embodiments of the invention, the first request is from a first terminal device of a first network; the second receiving unit 21 is configured to receive the first request via a border controller and a session controller; the first information is used for establishing a data channel between the first terminal device and the media server.

In some optional embodiments of the present invention, the second sending unit 22 is further configured to send a first request response to the first terminal device, where the first request response is used to indicate that the first request is confirmed; the first request reply includes the first information.

In some optional embodiments of the present invention, the service controller further includes a second processing unit 23, configured to negotiate information for establishing a data channel with a network device of a second network through the second sending unit 22 and the second receiving unit 21.

In some optional embodiments of the invention, the first request is from a network device of a second network; the first information is used for establishing a data channel between a first terminal device of a first network and the media server.

In some optional embodiments of the present invention, the second sending unit 22 is further configured to send the first information to the first terminal device;

the second receiving unit 21 is further configured to receive fourth acknowledgement information from the first terminal device; the fourth confirmation information indicates that the first information for establishing the data channel is confirmed;

the second sending unit 22 is further configured to send a first request reply to the network device of the second network, where the first request reply is used to indicate that the first request is acknowledged.

In some optional embodiments of the invention, the first information may comprise at least one of: the data channel identification, the IP address related to the data channel, the port number related to the data channel, and the transmission protocol information related to the data channel.

In some optional embodiments of the present invention, the second receiving unit 21 is further configured to receive a second request if the data channel is established; the second request is used for requesting to establish an application channel, and the second request comes from the first terminal equipment of the first network; the second receiving unit 21 receives the second request via a border controller and a session controller;

the second sending unit 22 is further configured to send the second request to the first service controller.

In some optional embodiments of the present invention, the second receiving unit 21 is further configured to receive second acknowledgement information from the first service controller, where the second acknowledgement information includes second information, and the second information is used to establish an application channel between the first terminal device and the media server.

In some optional embodiments of the present invention, the second sending unit 22 is further configured to send a second request reply to the first terminal device, where the second request reply is used to indicate that the second request is confirmed; the second request response includes the second information.

In the embodiment of the present invention, the second processing unit 23 in the service controller may be implemented by a CPU, a DSP, an MCU, or an FPGA in practical application; the second receiving unit 21 and the second sending unit 22 in the service controller can be implemented by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface, a protocol, etc.) and a transceiving antenna in practical application.

It should be noted that: in the service controller provided in the foregoing embodiment, when a channel is established, only the division of each program module is illustrated, and in practical applications, the processing may be distributed to different program modules according to needs, that is, the internal structure of the service controller is divided into different program modules to complete all or part of the processing described above. In addition, the embodiments of the service controller and the channel establishing method provided by the foregoing embodiments belong to the same concept, and specific implementation processes thereof are described in the embodiments of the methods for details, which are not described herein again.

An embodiment of the present invention further provides a network device, where the network device may specifically be the first service controller and the second service controller in the foregoing embodiment. Fig. 11 is a schematic hardware structure diagram of a network device according to an embodiment of the present invention, as shown in fig. 11, the network device includes a memory 32, a processor 31, and a computer program stored in the memory 32 and executable on the processor 31, and when the processor 31 executes the computer program, the processor 31 implements the steps of the channel establishment method applied to the first service controller or the second service controller according to the embodiment of the present invention.

Optionally, one or more network interfaces 33 may also be included in the network device. It will be appreciated that the various components in the network device are coupled together by a bus system 34. It will be appreciated that the bus system 34 is used to enable communications among the components of the connection. The bus system 34 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 34 in FIG. 11.

It will be appreciated that the memory 32 can be either volatile memory or nonvolatile memory, and can 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 Flash 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 32 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

The method disclosed in the above embodiments of the present invention may be applied to the processor 31, or implemented by the processor 31. The processor 31 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 31. The processor 31 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 31 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 32, and the processor 31 reads the information in the memory 32 and performs the steps of the aforementioned methods in conjunction with its hardware.

In an exemplary embodiment, the network Device may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, programmable Logic Devices (PLDs), complex Programmable Logic Devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

In an exemplary embodiment, the present invention further provides a computer readable storage medium, such as the memory 32, comprising a computer program, which is executable by the processor 31 of the network device to perform the steps of the foregoing method. The computer readable storage medium can be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories.

The computer-readable storage medium provided by the embodiment of the present invention stores thereon a computer program, which when executed by a processor, implements the aforementioned steps of the method for establishing a channel applied to a first service controller or a second service controller according to the embodiment of the present invention.

The methods disclosed in the several method embodiments provided in the present application may be combined arbitrarily without conflict to arrive at new method embodiments.

Features disclosed in several of the product embodiments provided in the present application may be combined in any combination to yield new product embodiments without conflict.

The features disclosed in the several method or apparatus embodiments provided herein may be combined in any combination to arrive at a new method or apparatus embodiment without conflict.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional 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 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 invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for 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, the program performs 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 unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing 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 causing a computer 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 invention. 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 invention, but the scope of the present invention 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 invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A method for establishing a channel, the method comprising:

and the first service controller obtains first information for establishing a data channel from a media server based on the first request, and sends first confirmation information to the second service controller, wherein the first confirmation information comprises the first information.

2. The method of claim 1, wherein the first request is from a first terminal device of a first network; the first service controller receives the first request via a border controller, a session controller and the second service controller;

3. The method of claim 1, wherein the first request is from a network device of a second network; the first service controller receiving the first request via the second service controller;

4. The method of claim 1, wherein the first information comprises at least one of: the data channel identification, the internet protocol IP address related to the data channel, the port number related to the data channel and the transmission protocol information related to the data channel.

5. The method of claim 1, further comprising:

and the first service controller sends the address information of the first service controller to the media server.

6. The method according to any one of claims 1 to 5, further comprising:

under the condition that the data channel is established, the first service controller receives a second request, wherein the second request is used for requesting to establish an application channel;

7. The method of claim 6, wherein the second request is from a first terminal device of a first network; the first traffic controller receiving the second request via a border controller, a session controller, and the second traffic controller;

8. The method of claim 7, further comprising:

and the first service controller sends second confirmation information to the second service controller, wherein the second confirmation information comprises the second information.

9. The method of claim 6, wherein the second request is from a network device of a second network;

10. The method of claim 9, further comprising:

the first service controller obtains third information of terminal equipment of a first network, wherein the third information is used for establishing an application channel between the terminal equipment of the first network and the media server;

the first service controller sends the third information to the media server;

11. The method of claim 6, wherein the second information comprises at least one of: the application channel flow identification, the IP address related to the application channel, the port number related to the application channel and the transmission protocol information related to the application channel.

12. A method for establishing a channel, the method comprising:

13. The method of claim 12, wherein the first request is from a first terminal device of a first network; the second traffic controller receiving the first request via a border controller and a session controller;

14. The method of claim 13, further comprising:

the second service controller sends a first request response to the first terminal device, wherein the first request response is used for indicating that the first request is confirmed; the first request response includes the first information.

15. The method of claim 13, further comprising:

the second service controller negotiates with network equipment of a second network for information used to establish a data channel.

16. The method of claim 12, wherein the first request is from a network device of a second network;

17. The method of claim 16, further comprising:

the second service controller sends the first information to the first terminal equipment and receives fourth confirmation information from the first terminal equipment; the fourth confirmation information indicates that the first information for establishing the data channel is confirmed;

18. The method of claim 12, wherein the first information comprises at least one of: the data channel identification, the IP address related to the data channel, the port number related to the data channel, and the transmission protocol information related to the data channel.

19. The method of any one of claims 12 to 18, further comprising:

under the condition that the data channel is established, the second service controller receives a second request and sends the second request to the first service controller; the second request is used for requesting to establish an application channel, and the second request comes from the first terminal equipment of the first network; the second traffic controller receives the second request via a border controller and a session controller.

20. The method of claim 19, further comprising:

and the second service controller receives second confirmation information from the first service controller, wherein the second confirmation information comprises second information, and the second information is used for establishing an application channel between the first terminal equipment and the media server.

21. The method of claim 20, further comprising:

the second service controller sends a second request response to the first terminal device, wherein the second request response is used for indicating that the second request is confirmed; the second request reply includes the second information.

22. The method of claim 20, further comprising:

the second service controller negotiates with a network device of a second network about information for establishing an application channel, where the information for establishing the application channel is used to establish the application channel between a second terminal device of the second network and the media server.

23. The method of claim 20, wherein the second information comprises at least one of: the application channel flow identification, the IP address related to the application channel, the port number related to the application channel and the transmission protocol information related to the application channel.

24. A service controller, wherein said service controller is a first service controller; the service controller comprises: the device comprises a first receiving unit, a first processing unit and a first sending unit; wherein the content of the first and second substances,

25. A traffic controller, characterized in that said traffic controller is a second traffic controller; the service controller includes: a second receiving unit and a second transmitting unit; wherein the content of the first and second substances,

26. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 11; alternatively, the first and second electrodes may be,

the program when executed by a processor implementing the steps of the method of any one of claims 12 to 23.

27. A network device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method of any one of claims 1 to 11 are carried out when the program is executed by the processor; alternatively, the processor, when executing the program, performs the steps of the method of any of claims 12 to 23.