CN110418346B - Call establishment method and call establishment system - Google Patents
Call establishment method and call establishment system Download PDFInfo
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- CN110418346B CN110418346B CN201910789550.9A CN201910789550A CN110418346B CN 110418346 B CN110418346 B CN 110418346B CN 201910789550 A CN201910789550 A CN 201910789550A CN 110418346 B CN110418346 B CN 110418346B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
Abstract
The present disclosure provides a call establishment method and a call establishment system, including: receiving a three-party call establishment request sent by a calling terminal; sending application layer session identification of the two-party call to a calling terminal according to the three-party call establishment request, and sending a three-party call request to a network open function node; receiving authentication result information sent by a network open function node after authentication is carried out according to a three-party call request; if the authentication result information is that the authentication is passed, sending application layer session identification of the two-party call to the network open function node; receiving a three-party call establishment message forwarded from a session management function node by a network open function node; redirecting the audio and video stream pointing to the calling terminal to a network open function node, and keeping the audio and video stream pointing to the participating terminal unchanged; and sending a three-party call establishment confirmation message to the session management function node through the network open function node.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a call establishment method and a call establishment system.
Background
With the development of information technology, video or voice calls based on mobile terminal applications are commonly used. Meanwhile, the call made by the user through the mobile terminal application is independent from the traditional call made based on the mobile communication network, the two call modes cannot coexist, the multi-party call of the intelligent application and the standard telephone existing in the call participants at the same time cannot be realized, the call experience of the user is reduced, and inconvenience is brought to the user.
Disclosure of Invention
The present disclosure is directed to at least one of the technical problems in the prior art, and provides a call establishment method and a call establishment system.
In order to achieve the above object, an embodiment of the present disclosure provides a call establishment method, including:
receiving a three-party call establishment request sent by a calling terminal, wherein the calling terminal is one party of the current two-party call, and the three-party call establishment request comprises the following steps: the user number of the calling terminal;
sending application layer session identification of the two-party call to the calling terminal according to the three-party call establishment request, and sending a three-party call request to a network open function node;
receiving authentication result information sent by the network open function node after authentication is carried out according to the three-party call request;
if the authentication result information is that the authentication is passed, sending an application layer session identifier of the two-party call to the network open function node;
receiving a three-party call establishment message forwarded from a session management function node by the network open function node;
redirecting the audio and video stream pointing to the calling terminal to the network open function node, and keeping the audio and video stream pointing to a participating terminal unchanged, wherein the participating terminal is the other party of the two-party conversation;
and sending a three-party call establishment confirmation message to the session management function node through the network open function node so that the session management function node calls a called terminal according to the three-party call establishment confirmation message.
In some embodiments, the three-way call setup request further comprises: call suspend information for the two-party call;
before the step of sending a three-way call request to the network open function node, the method further includes: and suspending the two-party conversation.
After the step of redirecting the audio/video stream pointing to the calling terminal to the network open function node and keeping the audio/video stream pointing to the participating terminal unchanged, the method further comprises the following steps:
and sending the call recovery information aiming at the two-party call to the participating terminal, and sending the call disconnection information aiming at the two-party call to the calling terminal.
In some embodiments, the three-way call request comprises: server description information of the video communication server;
the authentication process of the network open function node according to the three-party call request is as follows:
sending an authentication request to a unified data repository, the authentication request comprising: the server description information;
and receiving and forwarding the authentication result information sent by the unified data storage library to a video communication server.
In order to achieve the above object, an embodiment of the present disclosure further provides a call establishment method, including:
receiving a three-party call request sent by a calling terminal, wherein the three-party call request comprises: the application layer session identification of the current two-party conversation and the user number of the called terminal;
sending an identification query request to a network open function node, wherein the identification query request comprises: the application layer session identifier;
receiving identification query information returned by the network open function node, and selecting a user plane function node as a service node of a three-party call according to the identification query information, wherein the identification query information comprises: server description information of a video communication server corresponding to the application layer session identifier;
sending a three-way call establishment message to the video communication server through the network open function node, wherein the three-way call establishment message comprises: an entry address of the user plane function node;
and receiving a three-party call establishment confirmation message sent by the video communication server through the network open function node, sending three-party call establishment result information to the calling terminal, and calling the called terminal through a 5G core network.
In order to achieve the above object, an embodiment of the present disclosure further provides a call establishment method, including:
acquiring a user number of a called terminal;
sending a three-party call establishment request to a video communication server, and receiving an application layer session identifier of a current two-party call sent by the video communication server, wherein the three-party call establishment request comprises: a subscriber number of the calling terminal;
sending a three-way call request to a session management function node, the three-way call request comprising: the application layer session identification of the two-party conversation and the user number of the called terminal;
and receiving a three-party call establishment result message sent by the session management function node, calling a corresponding application program according to the three-party call establishment result message, and establishing the three-party call among the calling terminal, the participant terminal and the called terminal.
To achieve the above object, an embodiment of the present disclosure provides a video communication server, including:
the first receiving module is used for receiving a three-party call establishment request sent by a calling terminal, wherein the calling terminal is a party of the current two-party call, and the three-party call establishment request comprises: the user number of the calling terminal;
the first sending module is used for sending the application layer session identification of the two-party call to the calling terminal according to the three-party call establishment request and sending a three-party call request to a network open function node;
the second receiving module is used for receiving authentication result information sent by the network open function node after authentication is carried out according to the three-party call request;
a second sending module, configured to send an application layer session identifier of the two-party call to the network open function node when the authentication result information is that the authentication is passed;
a third receiving module, configured to receive a three-party call establishment message forwarded by the network open function node from a session management function node;
the redirection module is used for redirecting the audio and video stream pointing to the calling terminal to the network open function node and keeping the audio and video stream pointing to a participating terminal unchanged, wherein the participating terminal is the other party of the two-party conversation;
and the third sending module is used for sending a three-party call establishment confirmation message to the session management function node through the network open function node so that the session management function node can call the called terminal according to the three-party call establishment confirmation message.
In some embodiments, the three-way call setup request further comprises: call suspend information for the two-party call;
the first receiving module includes:
a suspending unit for suspending the two-party call;
the redirection module includes:
and the sending unit is used for sending the call recovery information aiming at the two-party call to the participating terminal and sending the call disconnection information aiming at the two-party call to the calling terminal.
In some embodiments, the three-way call request comprises: server description information of the video communication server.
To achieve the above object, an embodiment of the present disclosure provides a session management function node, including:
a fourth receiving module, configured to receive a three-way call request sent by a calling terminal, where the three-way call request includes: the application layer session identification of the current two-party conversation and the user number of the called terminal;
a fourth sending module, configured to send an identifier query request to a network openness function node, where the identifier query request includes: the application layer session identifier;
a selection module, configured to receive identifier query information returned by the network open function node, and select a user plane function node as a service node for a three-party call according to the identifier query information, where the identifier query information includes: server description information of a video communication server corresponding to the application layer session identifier;
a fifth sending module, configured to send a triple-party call establishment message to the video communication server through the network open function node, where the triple-party call establishment message includes: an entry address of the user plane function node;
and the calling module is used for receiving a three-party call establishment confirmation message sent by the video communication server through the network open function node, sending three-party call establishment result information to the calling terminal, and calling the called terminal through a 5G core network.
In order to achieve the above object, an embodiment of the present disclosure provides a communication terminal, including:
the acquisition module is used for acquiring the user number of the called terminal;
a fifth receiving module, configured to send a triple-party call establishment request to a video communication server, and receive an application layer session identifier of a current double-party call sent by the video communication server, where the triple-party call establishment request includes: a subscriber number of the calling terminal;
a sixth sending module, configured to send a three-way call request to the session management function node, where the three-way call request includes: the application layer session identification of the two-party conversation and the user number of the called terminal;
and the sixth receiving module is used for receiving the three-party call establishment result message sent by the session management function node, calling a corresponding application program according to the three-party call establishment result message, and establishing the three-party call among the calling terminal, the participant terminal and the called terminal.
In order to achieve the above object, an embodiment of the present disclosure provides a call establishment system, including: the system comprises a video communication server, a session management function node and a communication terminal;
wherein, the video communication server adopts the video communication server in any one of the previous embodiments; the session management function node adopts the session management function node in the embodiment; the communication terminal adopts the communication terminal in the foregoing embodiment.
The present disclosure has the following beneficial effects:
the embodiment of the disclosure provides a call establishing method and a call establishing system, which can add a standard phone and realize three-way call of different call carriers on the basis of existing two-way call based on a mobile terminal application program in a 5G network, thereby improving the call experience of users.
Drawings
Fig. 1 is a flowchart of a call establishment method according to an embodiment of the present disclosure;
fig. 2 is a flowchart of another call establishment method provided in the embodiment of the present disclosure;
fig. 3 is a flowchart of another call establishment method provided in the embodiment of the present disclosure;
fig. 4 is a flowchart of another call establishment method according to an embodiment of the present disclosure;
fig. 5 is a signaling diagram of still another call setup method according to an embodiment of the present disclosure;
fig. 6 is a block diagram of a video communication server according to an embodiment of the present disclosure;
fig. 7 is a block diagram of a session management function node according to an embodiment of the present disclosure;
fig. 8 is a block diagram of a communication terminal according to an embodiment of the present disclosure;
fig. 9 is a block diagram of a call setup system according to an embodiment of the present disclosure.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present disclosure, the following describes the call establishment method and the call establishment system provided in the present disclosure in detail with reference to the accompanying drawings.
The call establishing method and the call establishing system provided by the disclosure can be used for adding a standard telephone and establishing a three-party call in a 5G network on the basis of the existing two-party call based on the application program of the mobile terminal.
Fig. 1 is a flowchart of a call establishment method according to an embodiment of the present disclosure. As shown in fig. 1, the call establishment method includes:
and step S1, receiving a three-way call establishment request sent by the calling terminal.
In step S1, the calling terminal is a party of the current two-party call, and the three-party call establishment request includes: the subscriber number of the calling terminal.
The current two-party call is based on an application program on the terminal, and the application program in the calling terminal does not adopt data connection based on a mobile communication network, such as WIFI connection. The subscriber number may be a telephone number of the corresponding terminal.
In practical application, the application program in the calling terminal can send a three-party call establishment request to the video communication server, and interact with the other party of the current two-party call, namely the application program in the participating terminal, so as to determine that the three-party call is to be established currently.
Step S2, sending an application layer session identifier of the two-way call to the calling terminal according to the three-way call establishment request, and sending a three-way call request to a Network open Function Node (NEF).
In practical applications, the application layer session identifier may be sent to the calling terminal by an application program in the calling terminal.
And step S3, receiving authentication result information sent by the network open function node after authentication is carried out according to the three-party call request.
In step S3, the description of the process of the network openfunction node performing authentication according to the three-party call request may refer to the following embodiments. The authentication process is a process for verifying whether the video communication server opens the three-way call service.
Wherein, the authentication result information may be: authentication passes or fails.
And step S4, if the authentication result information is that the authentication is passed, sending the application layer session identification of the two-party call to the network open function node.
In step S4, if the authentication result information is an authentication failure, it indicates that the video communication server does not open the three-way call service, and the process ends.
The network open function node stores the application layer session identification and records the server description information of the video communication server corresponding to the application layer session identification.
Step S5, receiving a three-way call establishment message forwarded by the network open Function node from a Session Management Function (SMF).
And step S6, redirecting the audio/video stream pointing to the calling terminal to a network open function node, and keeping the audio/video stream pointing to the participating terminal unchanged.
Wherein, the participating terminal is the other party of the double-party conversation.
And step S7, sending a three-way call establishment confirmation message to the session management function node through the network open function node.
In step S7, a three-way call establishment confirmation message is sent to the session management function node through the network open function node, so that the session management function node makes a call to the called terminal according to the three-way call establishment confirmation message.
The disclosed embodiment provides a call establishing method, which can be used for authenticating through a network open function node and interacting with a call management function node, so that a standard telephone is added as a third party in a two-party call based on an application program and a non-mobile communication network connection mode to form a three-party call.
Fig. 2 is a flowchart of another call establishment method according to an embodiment of the present disclosure. As shown in fig. 2, the call establishing method includes steps S1 to S7 in the above embodiment, and further includes step S1a, step S2a, step S2b and step S6a, and only step S1a, step S2a, step S2b and step S6a are described in detail below.
In some embodiments, the three-way call setup request further comprises: call suspend information for a double-talk call.
In practical applications, the three-way call establishment request may further include: the call suspension reason is made clear by attempting to establish suspension reason information for a three-party call across systems.
Before step S2, the method further includes: step S1 a.
And step S1a, suspending the double-party call.
In practical applications, after the suspend operation for the double-talk is completed, the application program in the calling terminal may send a message that the session is suspended to the calling terminal, and at the same time, the application program in the calling terminal completes the step of sending the application layer session identifier in step S2.
Meanwhile, as mentioned in step S1, the application program in the calling terminal may send a three-way call establishment request to the video communication server, and when the three-way call establishment request further includes call suspension information for a two-way call, the suspension operation is initiated by the application program in the calling terminal instead of the calling terminal, which is beneficial to the calling terminal and the application program in the calling terminal to complete the operation state synchronization in a relatively simple operation manner.
After step S6, the method further includes: step S6 a.
And step S6a, sending the call recovery information aiming at the double-party call to the participating terminal, and sending the call disconnection information aiming at the double-party call to the calling terminal.
In practical application, the video communication server is responsible for completing adaptation of audio and video communication signaling between the video communication server and a network open function node, and meanwhile, the original audio and video communication signaling can still be adopted between the video communication server and an application program in a participating terminal, so that corresponding call disconnection and call recovery are carried out on the basis of the original audio and video communication signaling.
In some embodiments, the three-way call request comprises: server description information of the video communication server.
In practical applications, the server description information may include: the provider of the video communication server, location description information of the video communication server, and virtual address information of the video communication server.
In step S2, the process of the network open function node performing authentication according to the three-way call request is as follows:
step S2a, the network open function node sends an authentication request to a Unified Data Repository (UDR).
In step S2a, the authentication request includes: server description information of the video communication server.
And S2b, receiving and forwarding the authentication result information sent by the unified data repository to the video communication server.
The disclosed embodiment provides a call establishment method, which can be used for suspending the current two-party call after receiving a three-party call establishment request, interacting with a call management function node through a network open function node after passing authentication, and then performing adaptation of audio and video communication signaling between the call management function node and the network open function node, thereby completing the establishment of the three-party call.
Fig. 3 is a flowchart of another call setup method according to an embodiment of the present disclosure. As shown in fig. 3, the call establishment method includes:
and step S8, receiving a three-party call request sent by the calling terminal.
In step S8, the three-way call request includes: the application layer session identification of the current two-party conversation and the user number of the called terminal.
In practical applications, the three-way call request may further include: to mark call type parameters that attempt to establish a three-way call.
In practical application, after receiving a three-party call request sent by a calling terminal, the calling terminal can firstly make a call to a called terminal and complete call connection pre-establishment.
And step S9, sending an identification inquiry request to the network open function node.
In step S9, identifying the query request includes: and the current application layer session identification of the two parties.
After receiving the identifier query request, the network open function node queries according to the application layer session identifier in the identifier query request, and if the same application layer session identifier is matched, it indicates that the two-party call attempting to expand to the cross-system three-party call exists. The matched application layer session identification is issued by the corresponding video communication server in step S4.
And step S10, receiving the identification query information returned by the network open function node, and selecting a user plane function node as a service node of the three-party call according to the identification query information.
In step S10, identifying the query information includes: the application layer session identifies server description information of a corresponding video communication server.
In practical applications, identifying the query information may further include: parameters such as bandwidth, time delay and packet loss of the audio and video call corresponding to the application layer session identifier; the server description information may further include: the provider of the video communication server, location description information of the video communication server, and virtual address information of the video communication server.
In step S10, after selecting a user plane function node as a service node for three-way call, the user plane function node is instructed to establish data connection relationships with the network open function node, the calling terminal and the called terminal, and simultaneously establish a one-to-many forwarding relationship.
The forwarding relationship is: the audio and video sent by the calling terminal are forwarded to the called terminal and the network open function node by the user plane function node at the same time; the audio and video sent by the called terminal is forwarded to the calling terminal and the network open function node by the user plane function node at the same time; the audio and video sent by the network open function node is forwarded to the calling terminal and the called terminal by the user plane function node at the same time.
And step S11, sending a three-way call establishment message to the video communication server through the network open function node.
In step S11, the three-way call setup information includes: entry address of user plane function node.
And step S12, receiving a three-way call establishment confirmation message sent by the video communication server through the network open function node, sending three-way call establishment result information to the calling terminal, and calling the called terminal through the 5G core network.
In step S12, the calling terminal invokes a corresponding application program according to the three-way call establishment result information, and establishes a three-way call between the calling terminal, the participant terminal, and the called terminal.
The disclosed embodiment provides a call establishing method, which can be used for receiving session information sent by a calling terminal, inquiring the session information to a network open function node, determining that two-party calls needing to be expanded into cross-system three-party calls exist, designating a user as a service node of the three-party calls, and calling a called terminal to establish the three-party calls.
Fig. 4 is a flowchart of another call establishment method according to an embodiment of the present disclosure. As shown in fig. 4, the call establishment method includes:
and step S13, acquiring the user number of the called terminal.
In practical application, when a user tries to establish a three-way call, the following operations can be performed through the operation interface: lightly touching the current call interface to call out an operation button group, wherein the operation button group comprises a button for initiating three-party call; clicking a 'three-party call initiating' button to generate a 'called user type' option, wherein the option comprises a 'standard telephone' option; and clicking a standard telephone option, sending a call type parameter to a dial plate of the calling terminal by the application program at the moment, marking the call type which is attempted to be established as a three-party call, and calling the dial plate. After the user inputs the user number of the corresponding called terminal, the acquiring step is completed, i.e., the step S13 is completed.
Step S14, sending a three-party call establishment request to the video communication server, and receiving the application layer session identification of the current two-party call sent by the video communication server.
In step S14, the three-way call establishment request includes: the subscriber number of the calling terminal.
In practical applications, as mentioned in step S1, the three-way call establishment request may be sent to the video communication server by an application program in the calling terminal; as mentioned in step S2, the application-layer session identification may be sent to the calling terminal by an application within the calling terminal.
And step S15, sending a three-way call request to the session management function node.
In step S15, the three-way call request includes: the application layer session identification of the two-party conversation and the user number of the called terminal.
And step S16, receiving a three-party call establishment result message sent by the session management function node, calling a corresponding application program according to the three-party call establishment result message, and establishing a three-party call among the calling terminal, the participant terminal and the called terminal.
In step S16, in the established three-way session relationship, the video server provides relay forwarding for the audio and video stream of the participating terminal, and the network open function node provides relay forwarding for the audio and video stream of the video server.
The embodiment of the disclosure provides a call establishing method, which can be used for interacting with a video communication server and a session management function node after acquiring a user number of a called terminal to complete the establishment of a three-party call.
Fig. 5 is a signaling diagram of another call setup method according to an embodiment of the disclosure. As shown in fig. 5, the call establishment method includes:
BZ01, the calling terminal obtains the user number of the called terminal.
The BZ101 and the calling terminal send a three-way call establishment request to the video communication server, wherein the three-way call establishment request comprises a user number of the calling terminal, call suspension information aiming at two-party call and suspension reason information for determining that the call suspension reason is the attempt to establish cross-system three-way call.
The BZ102, the video communication server, suspends the double-talk and interacts with the calling terminal and the participant terminal (not shown in fig. 5).
The BZ201 and the video communication server send application layer session identification of both-party conversation to the calling terminal.
The BZ202 and the video communication server send a three-way call request to the network open function node, wherein the three-way call request comprises server description information of the video communication server.
BZ3, the calling terminal sends a three-way call request to the second session management function node, wherein the three-way call request comprises the application layer session identification of the two-party conversation and the user number of the called terminal.
BZ4, the network open function node sends an authentication request to the unified data repository, wherein the authentication request comprises the server description information of the video communication server.
BZ5, the unified data repository sends the authentication result information to the video communication server via the network open function node.
And if the authentication result information is that the authentication is passed, the BZ6 sends the application layer session identifier of the two-party call to the network open function node.
The BZ701 and the session management function node send an identification query request to the network open function node, wherein the identification query request comprises application layer session identification of both-party communication.
The BZ702 and the network open function node inquire according to the identification inquiry request and return identification inquiry information to the session management function node, wherein the identification inquiry information comprises server description information of the video communication server corresponding to the application layer session identification.
The BZ8 and the session management function node select a user plane function node as a service node for three-party call according to the identifier query information, and then the user plane function node establishes data connection relations with the network open function node, the calling terminal and the called terminal respectively, and simultaneously establishes a one-to-many forwarding relation (not shown in fig. 5).
BZ9, the session management function node sends a three-way call establishment message to the video communication server through the network open function node, wherein the three-way call establishment message comprises the entrance address of the user plane function node.
And the BZ10 and the video communication server redirect the audio and video stream pointing to the calling terminal to the network open function node, and keep the audio and video stream pointing to the participating terminal unchanged.
The BZ1101 and the video communication server send call resumption information for the double-talk to the participant terminal.
The BZ1102 and the video communication server send call disconnection information aiming at the two-party call to the calling terminal.
BZ12, the video communication server sends a three-way call establishment confirmation message to the session management function node through the network open function node.
BZ1301 and the session management function node send three-party call establishment result information to the calling terminal.
The BZ1302, the session management function node, makes a call to the called terminal through the 5G core network, and then the called terminal responds to the call (not shown in fig. 5).
BZ14, the calling terminal calls the corresponding application program to establish a three-way call (not shown in figure 5) among the calling terminal, the participating terminal and the called terminal.
Fig. 6 is a block diagram of a video communication server according to an embodiment of the present disclosure. As shown in fig. 6, the video communication server can be used to implement the call establishment method provided in the foregoing embodiment. The video communication server includes: the system comprises a first receiving module 1, a first sending module 2, a second receiving module 3, a second sending module 4, a third receiving module 5, a redirecting module 6 and a third sending module 7.
The first receiving module 1 is configured to receive a three-way call establishment request sent by a calling terminal, where the calling terminal is a party of a current two-party call, and the three-way call establishment request includes: the subscriber number of the calling terminal.
And the first sending module 2 is used for sending the application layer session identifier of the two-party call to the calling terminal according to the three-party call establishment request and sending the three-party call request to the network open function node.
And the second receiving module 3 is configured to receive authentication result information sent by the network open function node after performing authentication according to the three-party call request.
And the second sending module 4 is configured to send the application layer session identifier of the two-party call to the network open function node when the authentication result information is that the authentication is passed.
And a third receiving module 5, configured to receive a three-party call establishment message forwarded by the network open function node from the session management function node.
And the redirection module 6 is used for redirecting the audio and video stream pointing to the calling terminal to a network open function node, keeping the audio and video stream pointing to the participating terminal unchanged, and enabling the participating terminal to be the other party of the two-party conversation.
And a third sending module 7, configured to send a three-way call establishment confirmation message to the session management function node through the network open function node, so that the session management function node calls the called terminal according to the three-way call establishment confirmation message.
In some embodiments, the three-way call setup request further comprises: call suspend information for a double-talk call.
The first receiving module includes: the unit 1a is suspended.
And a suspending unit 1a for suspending the double-talk.
The redirection module includes: and a transmitting unit 6 a.
A sending unit 6a, configured to send call recovery information for the double-talk to the participant terminal, and send call disconnect information for the double-talk to the calling terminal.
In some embodiments, the three-way call request comprises: server description information of the video communication server.
It should be noted that, for the specific execution process of each module and the relation between each module in this embodiment, reference may be made to the corresponding contents in the foregoing call establishment method embodiment, and details are not described here again.
Fig. 7 is a block diagram of a session management function node according to an embodiment of the present disclosure. As shown in fig. 7, the session management function node may be used to implement the call establishment method provided in the foregoing embodiment. The session management function node includes: a fourth receiving module 8, a fourth sending module 9, a selecting module 10, a fifth sending module 11 and a calling module 12.
The fourth receiving module 8 is configured to receive a three-party call request sent by the calling terminal, where the three-party call request includes: the application layer session identification of the current two-party conversation and the user number of the called terminal.
A fourth sending module 9, configured to send an identifier query request to the network openness function node, where the identifier query request includes: and the current application layer session identification of the two parties.
The selection module 10 is configured to receive identifier query information returned by a network open function node, and select a user plane function node as a service node of a three-party call according to the identifier query information, where the identifier query information includes: and server description information of the video communication server corresponding to the application layer session identification of the current double-party call.
A fifth sending module 11, configured to send a triple-party call establishment message to the video communication server through the network open function node, where the triple-party call establishment message includes: entry address of user plane function node.
And the calling module 12 is configured to receive a three-way call establishment confirmation message sent by the video communication server through the network open function node, send three-way call establishment result information to the calling terminal, and call the called terminal through the 5G core network.
It should be noted that, for the specific execution process of each module and the relation between each module in this embodiment, reference may be made to the corresponding contents in the foregoing call establishment method embodiment, and details are not described here again.
Fig. 8 is a block diagram of a communication terminal according to an embodiment of the present disclosure. As shown in fig. 8, the communication terminal may be used to implement the call establishment method provided in the foregoing embodiment. The communication terminal includes: an obtaining module 13, a fifth receiving module 14, a sixth sending module 15 and a sixth receiving module 16.
The obtaining module 13 is configured to obtain a user number of the called terminal.
A fifth receiving module 14, configured to send a triple-party call establishment request to the video communication server, and receive an application layer session identifier of a current double-party call sent by the video communication server, where the triple-party call establishment request includes: the subscriber number of the calling terminal.
A sixth sending module 15, configured to send a three-way call request to the session management function node, where the three-way call request includes: the application layer session identification of the two-party conversation and the user number of the called terminal.
And a sixth receiving module 16, configured to receive the three-way call establishment result message sent by the session management function node, and call a corresponding application program according to the three-way call establishment result message, so as to establish a three-way call between the calling terminal, the participant terminal, and the called terminal.
It should be noted that, for the specific execution process of each module and the relation between each module in this embodiment, reference may be made to the corresponding contents in the foregoing call establishment method embodiment, and details are not described here again.
Fig. 9 is a block diagram of a call setup system according to an embodiment of the present disclosure. As shown in fig. 9, the call setup system can be used to implement the call setup method provided in the foregoing embodiments. The call establishment system includes: the system comprises a video communication server, a session management function node and a communication terminal.
The video communication server adopts any one of the video communication servers in the previous embodiments; the session management function node adopts the session management function node in the embodiment; the communication terminal adopts the communication terminal in the foregoing embodiment.
In this embodiment, the call establishing system further includes: and (4) network open function nodes.
The call establishment system provided by the embodiment of the disclosure can be implemented in a 5G network, and on the basis that a calling terminal and a participant terminal have a call between the two parties based on a mobile terminal application program, the calling terminal interacts with a video communication server and a session management function entity to call a called terminal serving as a standard telephone, so as to establish a three-party call.
It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.
Claims (11)
1. A call establishment method is applied to a video communication server, and comprises the following steps:
receiving a three-party call establishment request sent by a calling terminal, wherein the calling terminal is one party of the current two-party call, and the three-party call establishment request comprises the following steps: the user number of the calling terminal;
sending application layer session identification of the two-party call to the calling terminal according to the three-party call establishment request, and sending a three-party call request to a network open function node;
receiving authentication result information sent by the network open function node after authentication is carried out according to the three-party call request;
if the authentication result information is that the authentication is passed, sending an application layer session identifier of the two-party call to the network open function node;
receiving a three-party call establishment message forwarded from a session management function node by the network open function node;
redirecting the audio and video stream pointing to the calling terminal to the network open function node, and keeping the audio and video stream pointing to a participating terminal unchanged, wherein the participating terminal is the other party of the two-party conversation;
and sending a three-party call establishment confirmation message to the session management function node through the network open function node so that the session management function node calls a called terminal according to the three-party call establishment confirmation message.
2. The call setup method of claim 1, wherein the three-way call setup request further comprises: call suspend information for the two-party call;
before the step of sending a three-way call request to the network open function node, the method further includes: suspending the two-party call;
after the step of redirecting the audio/video stream pointing to the calling terminal to the network open function node and keeping the audio/video stream pointing to the participating terminal unchanged, the method further comprises the following steps:
and sending the call recovery information aiming at the two-party call to the participating terminal, and sending the call disconnection information aiming at the two-party call to the calling terminal.
3. The call setup method according to claim 1, wherein the three-party call request comprises: server description information of the video communication server;
the authentication process of the network open function node according to the three-party call request is as follows:
sending an authentication request to a unified data repository, the authentication request comprising: the server description information;
and receiving and forwarding the authentication result information sent by the unified data storage library to a video communication server.
4. A call establishment method is applied to a session management function node, and comprises the following steps:
receiving a three-party call request sent by a calling terminal, wherein the calling terminal is a party for the current two-party communication, and the three-party call request comprises: the application layer session identification of the two-party conversation and the user number of the called terminal;
sending an identification query request to a network open function node, wherein the identification query request comprises: the application layer session identifier;
receiving identification query information returned by the network open function node, and selecting a user plane function node as a service node of a three-party call according to the identification query information, wherein the identification query information comprises: server description information of a video communication server corresponding to the application layer session identifier;
sending a three-way call establishment message to the video communication server through the network open function node, wherein the three-way call establishment message comprises: an entry address of the user plane function node;
and receiving a three-party call establishment confirmation message sent by the video communication server through the network open function node, sending three-party call establishment result information to the calling terminal, and calling the called terminal through a 5G core network.
5. A call establishing method is applied to a calling terminal, and comprises the following steps:
acquiring a user number of a called terminal;
sending a three-party call establishment request to a video communication server, and receiving an application layer session identifier of a current two-party call sent by the video communication server, wherein the three-party call establishment request comprises a user number of a calling terminal, and the calling terminal is a party of the two-party call;
sending a three-way call request to a session management function node, the three-way call request comprising: the application layer session identification of the two-party conversation and the user number of the called terminal;
and receiving a three-party call establishment result message sent by the session management function node, calling a corresponding application program according to the three-party call establishment result message, and establishing a three-party call among the calling terminal, the participating terminal and the called terminal, wherein the participating terminal is the other party of the two-party call.
6. A video communication server, comprising:
the first receiving module is used for receiving a three-party call establishment request sent by a calling terminal, wherein the calling terminal is a party of the current two-party call, and the three-party call establishment request comprises: the user number of the calling terminal;
the first sending module is used for sending the application layer session identification of the two-party call to the calling terminal according to the three-party call establishment request and sending a three-party call request to a network open function node;
the second receiving module is used for receiving authentication result information sent by the network open function node after authentication is carried out according to the three-party call request;
a second sending module, configured to send an application layer session identifier of the two-party call to the network open function node when the authentication result information is that the authentication is passed;
a third receiving module, configured to receive a three-party call establishment message forwarded by the network open function node from a session management function node;
the redirection module is used for redirecting the audio and video stream pointing to the calling terminal to the network open function node and keeping the audio and video stream pointing to a participating terminal unchanged, wherein the participating terminal is the other party of the two-party conversation;
and the third sending module is used for sending a three-party call establishment confirmation message to the session management function node through the network open function node so that the session management function node can call the called terminal according to the three-party call establishment confirmation message.
7. The video communication server of claim 6, wherein the three-way call establishment request further comprises: call suspend information for the two-party call;
the first receiving module includes:
a suspending unit for suspending the two-party call;
the redirection module includes:
and the sending unit is used for sending the call recovery information aiming at the two-party call to the participating terminal and sending the call disconnection information aiming at the two-party call to the calling terminal.
8. The video communication server of claim 6, wherein the three-way call request comprises: server description information of the video communication server.
9. A session management function node, comprising:
a fourth receiving module, configured to receive a three-way call request sent by a calling terminal, where the calling terminal is a party of a current two-party call, and the three-way call request includes: the application layer session identification of the two-party conversation and the user number of the called terminal;
a fourth sending module, configured to send an identifier query request to a network openness function node, where the identifier query request includes: the application layer session identifier;
a selection module, configured to receive identifier query information returned by the network open function node, and select a user plane function node as a service node for a three-party call according to the identifier query information, where the identifier query information includes: server description information of a video communication server corresponding to the application layer session identifier;
a fifth sending module, configured to send a triple-party call establishment message to the video communication server through the network open function node, where the triple-party call establishment message includes: an entry address of the user plane function node;
and the calling module is used for receiving a three-party call establishment confirmation message sent by the video communication server through the network open function node, sending three-party call establishment result information to the calling terminal, and calling the called terminal through a 5G core network.
10. A communication terminal, comprising:
the acquisition module is used for acquiring the user number of the called terminal;
a fifth receiving module, configured to send a three-way call establishment request to a video communication server, and receive an application layer session identifier of a current two-way call sent by the video communication server, where the three-way call establishment request includes a user number of a calling terminal, and the calling terminal is a party of the two-way call;
a sixth sending module, configured to send a three-way call request to the session management function node, where the three-way call request includes: the application layer session identification of the two-party conversation and the user number of the called terminal;
and the sixth receiving module is used for receiving the three-party call establishment result message sent by the session management function node, calling a corresponding application program according to the three-party call establishment result message, and establishing the three-party call among the calling terminal, the participating terminal and the called terminal, wherein the participating terminal is the other party of the two-party call.
11. A call set-up system, comprising: the system comprises a video communication server, a session management function node and a communication terminal;
the video communication server is the video communication server as claimed in any one of claims 6 to 8; the session management function node employing the session management function node as claimed in claim 9; the communication terminal employs the communication terminal as claimed in claim 10.
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| US7953447B2 (en) * | 2001-09-05 | 2011-05-31 | Vocera Communications, Inc. | Voice-controlled communications system and method using a badge application |
| US20070109979A1 (en) * | 2005-11-17 | 2007-05-17 | Chunyan Fu | Method and conference controller for cluster-based conferencing |
| CN101790134B (en) * | 2009-01-23 | 2012-08-29 | 上海华为技术有限公司 | Method, device and system for establishing session |
| US10117100B2 (en) * | 2013-01-03 | 2018-10-30 | Futurwei Technologies, Inc. | Systems and methods for accessing a network |
| US10015671B2 (en) * | 2016-01-19 | 2018-07-03 | T-Mobile Usa, Inc. | Network service access control |
| CN105656915B (en) * | 2016-01-29 | 2019-01-18 | 腾讯科技（深圳）有限公司 | Immediate communication methods, devices and systems |
| CN108124243A (en) * | 2016-11-29 | 2018-06-05 | 展讯通信（上海）有限公司 | A kind of multi-path terminal multiside calling method and device |
| CN108616492B (en) * | 2016-12-16 | 2021-05-25 | 展讯通信（上海）有限公司 | Method and device for realizing multi-party call and multi-pass terminal |
| CN108616496A (en) * | 2017-01-24 | 2018-10-02 | 展讯通信（上海）有限公司 | Implementation method, device, mostly logical terminal and the network side equipment of multi-party call |
| CN109600306B (en) * | 2019-01-22 | 2020-10-27 | 腾讯科技（深圳）有限公司 | Method, device and storage medium for creating session |
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