CN110278215B - Call establishment method and system, and session management function entity - Google Patents

Call establishment method and system, and session management function entity Download PDF

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Publication number
CN110278215B
CN110278215B CN201910640308.5A CN201910640308A CN110278215B CN 110278215 B CN110278215 B CN 110278215B CN 201910640308 A CN201910640308 A CN 201910640308A CN 110278215 B CN110278215 B CN 110278215B
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China
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call
information
calling
voice call
video call
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CN110278215A (en
Inventor
张伦泳
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1083—In-session procedures
    • H04L65/1089—In-session procedures by adding media; by removing media
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers

Abstract

The embodiment of the invention relates to a call establishment method and system, a session management functional entity, a policy control functional entity and a terminal. Wherein, the method comprises the following steps: the method comprises the steps of receiving a call request which is sent by a calling terminal and used for calling a called terminal in a voice call mode, sending a first query request to a policy control function entity, receiving switching information which is fed back by the policy control function entity based on the first query request and used for switching the voice call mode into a video call mode, and sending the switching information to the calling terminal, so that the calling terminal calls a preset application program when receiving information which is fed back by a calling user based on the switching information and used for confirming the switching. Through the technical scheme provided by the embodiment of the disclosure, the technical defect that the voice call mode cannot be switched to the video call mode in the prior art is avoided, the call mode can be flexibly determined, the call cost of a user is saved, and the consumption experience of the user is improved.

Description

Call establishment method and system, and session management function entity
Technical Field
Embodiments of the present invention relate to, in particular, to a call establishment method and system, a session management function entity, a policy control function entity, and a terminal.
Background
With the popularization of terminals and telecommunication services, terminals (specifically, mobile phones) are commonly used between users to make calls, thereby realizing communication.
It is well known that a call connection between a calling terminal and a called terminal can be realized in two ways, one is a voice call (i.e. a mobile communication network call) and the other is a video call (i.e. an IP network call). However, both modes of conversation cannot exist simultaneously.
In the prior art, when a calling subscriber calls a subscriber through a calling terminal, the subscriber can transact a package by logging in an official website of an operator or going to a service hall of the operator. The calling user can select to dial the called number of the called terminal in a voice call mode or select to dial the called number of the called terminal in a video call mode, and therefore call connection between the calling terminal and the called terminal is achieved.
Disclosure of Invention
According to an aspect of an embodiment of the present invention, an embodiment of the present invention provides a call setup method, including:
receiving a call request which is sent by a calling terminal and used for calling a called terminal in a voice communication mode, wherein the call request carries a calling number;
sending a first query request for querying call service information of the calling number to a policy control function entity;
receiving switching information which is fed back by the policy control function entity based on the first query request and is used for switching the mode of the voice call into the mode of the video call;
and sending the switching information to the calling terminal so that the calling terminal calls a preset application program when receiving information for confirming switching fed back by a calling user based on the switching information, and establishes a call connection in a video call mode between the calling terminal and the called terminal through the application program.
According to another aspect of the embodiments of the present disclosure, there is also provided a call setup method, including:
receiving a first query request which is sent by a session management function entity and used for querying call service information of the calling number, wherein the first query request is sent when the session management function entity receives a call request which is sent by a calling terminal and used for calling a called terminal in a voice call mode;
judging whether the calling number handles the service of switching the voice call to the video call strategy or not according to the prestored call service information;
if yes, sending a second query request for querying the voice call information and the video call information of the calling number to an application service entity;
receiving voice call information and video call information fed back by the application service entity according to the second query request;
judging whether to switch the voice call mode to a video call mode according to the voice call information and the video call information;
if so, sending switching information for switching the voice call mode to the video call mode to the session management functional entity, so that the session management functional entity sends the switching information to the calling terminal.
In some embodiments, the voice call information comprises: the allowance of the voice call duration of the current combo and the allowance of the voice call duration of each month in a preset first duration;
the video call information includes: the balance of the data flow of the video call of the current package and the balance of the data flow of the video call of each month in the first time length.
In some embodiments, the determining whether to switch the voice call mode to the video call mode according to the voice call information and the video call information includes:
calculating the average duration of the voice call of the calling number in the first duration according to the allowance of the voice call duration of each month in the preset first duration;
calculating the average data flow value of the video call of the calling number in the first time length according to the allowance of the data flow of the video call of each month in the first time length;
and determining whether to switch the voice call mode to the video call mode according to the average time length, the average data flow value, the allowance of the voice call time length of the current package and the allowance of the data flow of the video call of the current package.
In some embodiments, the voice call information further comprises: the voice call duration between the calling terminal and the called terminal is within a preset second duration;
the video call information further includes: the value of the data traffic of the video call between the calling terminal and the called terminal within the second duration;
wherein the second duration is less than the first duration.
According to another aspect of the embodiments of the present disclosure, there is also provided a call setup method, including:
sending a call request for calling a called terminal in a voice call mode to a session management function entity, wherein the call request carries a calling number;
receiving switching information fed back by the session management function entity based on the call request, wherein the switching information is used for switching the mode of the voice call to the mode of the video call;
and responding to the information for confirming the switching fed back by the calling user based on the switching information, and calling a preset application program so as to establish the call connection in a video call mode between the calling terminal and the called terminal through the application program.
According to another aspect of the embodiments of the present disclosure, there is also provided a session management function entity, including:
the first receiving module is used for receiving a calling request which is sent by a calling terminal and used for calling a called terminal in a voice communication mode, wherein the calling request carries a calling number;
a first sending module, configured to send a first query request for querying call service information of the calling number to a policy control function entity;
the first receiving module is further configured to receive switching information, which is fed back by the policy control function entity based on the first query request and is used for switching the voice call mode to the video call mode;
the first sending module is further configured to send the switching information to the calling terminal, so that the calling terminal invokes a preset application program when receiving information for confirming switching, which is fed back by a calling user based on the switching information, and establishes a call connection in a video call manner between the calling terminal and the called terminal through the application program.
According to another aspect of the embodiments of the present disclosure, there is also provided a policy control function entity, including:
a second receiving module, configured to receive a first query request sent by a session management function entity and used to query the call service information of the calling number, where the first query request is sent when the session management function entity receives a call request sent by a calling terminal to call a called terminal in a voice call manner;
the judging module is used for judging whether the calling number handles the business of switching the voice call to the video call strategy or not according to the prestored call service information;
the second sending module is used for sending a second query request for querying the voice call information and the video call information of the calling number to an application service entity if the calling number is the calling number;
the second receiving module is further configured to receive voice call information and video call information fed back by the application service entity according to the second query request;
the judging module is further used for judging whether to switch the voice call mode to the video call mode according to the voice call information and the video call information;
the second sending module is further configured to send, if yes, switching information for switching the voice call mode to the video call mode to the session management function entity, so that the session management function entity sends the switching information to the calling terminal.
In some embodiments, the voice call information comprises: the allowance of the voice call duration of the current combo and the allowance of the voice call duration of each month in a preset first duration;
the video call information includes: the balance of the data flow of the video call of the current package and the balance of the data flow of the video call of each month in the first time length.
In some embodiments, the determining module is specifically configured to:
calculating the average duration of the voice call of the calling number in the first duration according to the allowance of the voice call duration of each month in the preset first duration;
calculating the average data flow value of the video call of the calling number in the first time length according to the allowance of the data flow of the video call of each month in the first time length;
and determining whether to switch the voice call mode to the video call mode according to the average time length, the average data flow value, the allowance of the voice call time length of the current package and the allowance of the data flow of the video call of the current package.
In some embodiments, the voice call information further comprises: the voice call duration between the calling terminal and the called terminal is within a preset second duration;
the video call information further includes: the value of the data traffic of the video call between the calling terminal and the called terminal within the second duration;
wherein the second duration is less than the first duration.
According to another aspect of the embodiments of the present disclosure, there is also provided a terminal, including:
a third sending module, configured to send a call request for calling a called terminal in a voice call manner to a session management function entity, where the call request carries a calling number;
a third receiving module, configured to receive handover information that is sent by the session management function entity and is based on the call request feedback, where the handover information is used to switch the voice call mode to a video call mode;
and the calling module is used for responding to the information for confirming the switching, which is fed back by the calling user based on the switching information, and calling a preset application program so as to establish the call connection in a video call mode between the calling terminal and the called terminal through the application program.
According to another aspect of the embodiments of the present disclosure, there is also provided a call setup system, including:
a session management function as in any one of the above embodiments;
a policy control function as described in any one of the above embodiments;
a terminal as claimed in any preceding embodiment.
The embodiment of the invention has the advantages that as a new call establishment method is adopted, the method comprises the following steps: the method comprises the steps of receiving a call request which is sent by a calling terminal and used for calling a called terminal in a voice call mode, wherein the call request carries a calling number, sending a first query request for querying call service information of the calling number to a strategy control function entity, receiving switching information which is fed back by the strategy control function entity based on the first query request and used for switching the voice call mode into a video call mode, and sending the switching information to the calling terminal, so that the calling terminal calls a preset application program when receiving information which is fed back by a calling user based on the switching information and used for confirming the switching, and establishing call connection in the video call mode between the calling terminal and the called terminal through the application program. Through the technical scheme provided by the embodiment of the disclosure, the technical defect that the voice call mode cannot be switched to the video call mode in the prior art is avoided, the call mode can be flexibly determined, the call cost of a user is saved, and the consumption experience of the user is improved.
Drawings
Fig. 1 is a schematic diagram of a call setup method according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a call setup method according to another embodiment of the disclosure;
fig. 3 is a schematic diagram of a call setup method according to another embodiment of the disclosure;
fig. 4 is a signaling diagram of a call setup method according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of a session management function entity according to an embodiment of the disclosure;
FIG. 6 is a schematic diagram of a policy control function entity according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of a terminal of an embodiment of the present disclosure;
reference numerals:
1. the system comprises a first receiving module, 2, a first sending module, 11, a second receiving module, 12, a judging module, 13, a second sending module, 21, a third sending module, 22, a second receiving module, 23 and a calling module.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, interfaces, techniques, etc. in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The embodiment of the invention provides a call establishment method and system, a session management function entity, a policy control function entity and a terminal.
According to an aspect of an embodiment of the present invention, an embodiment of the present invention provides a call setup method.
Referring to fig. 1, fig. 1 is a schematic diagram of a call setup method according to an embodiment of the disclosure.
As illustrated in fig. 1, the method comprises:
s1: the session management function entity receives a call request which is sent by a calling terminal and calls a called terminal in a voice call mode, wherein the call request carries a calling number.
The Session Management Function entity is called Session Management Function in all english, and the english is called SMF for short.
Illustratively, when a calling user wants to call a called user, the calling user can call the called number of the called user through a calling terminal. The calling mode is a voice communication mode, namely a mobile communication network communication mode; the other is a video call, i.e. an IP network call.
In the embodiment of the disclosure, the calling user calls the called terminal by selecting the voice call mode through the calling terminal.
S2: the session management function entity sends a first query request for querying call service information of a calling number to the policy control function entity.
The Policy Control Function entity is called Policy Control Function in english, and PCF in english for short.
S3: and the session management functional entity receives switching information which is fed back by the policy control functional entity based on the first query request and is used for switching the mode of the voice call into the mode of the video call.
That is, after receiving the first query request, the policy control function entity sends the handover information to the session management function entity.
S4: and the session management functional entity sends the switching information to the calling terminal so that the calling terminal calls a preset application program when receiving information for confirming the switching, which is fed back by the calling user based on the switching information, and establishes a call connection in a video call mode between the calling terminal and the called terminal through the application program.
That is to say, when receiving the handover information sent by the policy control function entity, the session management function entity sends the handover information to the calling terminal, and the calling user can select whether to perform handover through the calling terminal, and if the calling user selects handover, the calling terminal invokes an application program (where the application program includes but is not limited to WeChat, QQ, etc.) based on the information for confirming the handover, and the application program establishes a call connection in the form of a video call between the calling terminal and the called terminal.
Based on the above analysis, the embodiment of the present disclosure provides a new call establishment method, which includes: the method comprises the steps of receiving a call request which is sent by a calling terminal and used for calling a called terminal in a voice call mode, wherein the call request carries a calling number, sending a first query request for querying call service information of the calling number to a strategy control function entity, receiving switching information which is fed back by the strategy control function entity based on the first query request and used for switching the voice call mode into a video call mode, and sending the switching information to the calling terminal, so that the calling terminal calls a preset application program when receiving information which is fed back by a calling user based on the switching information and used for confirming the switching, and establishing call connection in the video call mode between the calling terminal and the called terminal through the application program. Through the technical scheme provided by the embodiment of the disclosure, the technical defect that the voice call mode cannot be switched to the video call mode in the prior art is avoided, the call mode can be flexibly determined, the call cost of a user is saved, and the consumption experience of the user is improved.
According to another aspect of the embodiments of the present invention, a call setup method is provided.
Referring to fig. 2, fig. 2 is a schematic diagram of a call setup method according to another embodiment of the present disclosure.
As shown in fig. 2, the method includes:
s11: the method comprises the following steps that a policy control function entity receives a first query request which is sent by a session management function entity and used for querying calling service information of a calling number, wherein the first query request is sent when the session management function entity receives a calling request which is sent by a calling terminal and used for calling a called terminal in a voice call mode.
S12: the strategy control functional entity judges whether the calling number handles the business of switching the voice call to the video call strategy according to the prestored call service information, if so, S13 is executed, and if not, the call connection between the calling terminal and the called terminal is established according to the connection establishment mode in the prior art.
Specifically, the policy control functional entity determines the call service information corresponding to the calling number according to a preset mapping relationship between the calling number and the call service information, and judges whether the calling number handles the service of switching the voice call to the video call policy according to the call service information.
S13: and the policy control function entity sends a second query request for querying the voice call information and the video call information of the calling number to the application service entity.
The Application service entity is called Application Function in english, and the Application service entity is called AF in english for short. The application service entity includes, but is not limited to, the call detail record system of the operator.
S14: and the strategy control functional entity receives the voice call information and the video call information fed back by the application service entity according to the second query request.
That is, when the application service entity receives the second query request sent by the policy control entity, the stored voice call information and video call information are fed back to the policy control function entity.
S15: and the strategy control functional entity judges whether to switch the voice call mode to the video call mode according to the voice call information and the video call information, if so, S16 is executed, and if not, the call connection between the calling terminal and the called terminal is established according to the connection establishing mode in the prior art.
S16: and the policy control functional entity sends switching information for switching the voice call mode into the video call mode to the session management functional entity so that the session management functional entity sends the switching information to the calling terminal.
In some embodiments, the voice call information comprises: the allowance of the voice call duration of the current combo and the allowance of the voice call duration of each month in the preset first duration.
The video call information includes: the balance of the data traffic of the video call of the current package and the balance of the data traffic of the video call of each month within the first duration.
In some embodiments, S15 includes:
s15-1: and calculating the average duration of the voice call of the calling number in the first duration according to the allowance of the voice call duration of each month in the preset first duration.
S15-2: and calculating the average data flow value of the video call of the calling number in the first time period according to the allowance of the data flow of the video call of each month in the first time period.
S15-3: and determining whether to switch the voice call mode to the video call mode according to the average time length, the average data flow value, the allowance of the voice call time length of the current package and the allowance of the data flow of the video call of the current package.
In some embodiments, if the margin of the voice call duration of the current package is less than the average duration, no switching is performed; or if the allowance of the voice call duration of the current package is smaller than the average duration and the absolute value of the difference between the average duration and the average duration is larger than the preset value, the switching is not performed; or if the allowance of the voice call time length of the current package is smaller than the average time length, the absolute value of the difference between the voice call time length and the average time length is smaller than a preset value, and the allowance of the data flow of the video call of the current package is smaller than the average data flow value, the switching is not carried out; otherwise, switching.
Preferably, the user can set or adjust corresponding parameters corresponding to whether to perform the handover or not on the terminal, so as to implement the flexible handover.
In some embodiments, the voice call information further comprises: and the voice call duration between the calling terminal and the called terminal is within the preset second duration.
The video call information further includes: and the value of the data flow of the video call between the calling terminal and the called terminal in the second time length. Wherein the second duration is less than the first duration.
According to another aspect of the disclosed embodiment, the disclosed embodiment further provides a call establishment method.
Referring to fig. 3, fig. 3 is a schematic diagram of a call setup method according to another embodiment of the disclosure.
As shown in fig. 3, the method includes:
s21: the calling terminal sends a calling request for calling the called terminal in a voice call mode to the session management function entity, wherein the calling request carries a calling number.
It is understood that, in the embodiments of the present disclosure, the calling terminal and the called terminal are only for the scenario of the call, and in other call scenarios, the calling terminal may be a called terminal, and the called terminal may also be a calling terminal.
S22: and the calling terminal receives switching information fed back by the session management function entity based on the call request, wherein the switching information is used for switching the voice call mode into the video call mode.
S23: and the calling terminal responds to the information for confirming the switching, which is fed back by the calling user based on the switching information, and calls a preset application program so as to establish the call connection in a video call mode between the calling terminal and the called terminal through the application program.
For a more thorough understanding of the embodiments of the present disclosure, the embodiments of the present disclosure will now be described in detail with reference to fig. 4 (fig. 4 is a signaling diagram of a call setup method of the embodiments of the present disclosure):
BZ01 (not shown in fig. 4): the calling user initiates a call request for calling the called terminal through the calling terminal, wherein the call request carries a call in a voice call mode and a calling number.
BZ 1: and the calling terminal sends the call request initiated by the calling user to the SMF.
BZ 2: when receiving the call request, the SMF sends a first query request to the PCF to query the call service information of the calling number.
BZ 3: the PCF acquires the call service information corresponding to the calling number from its memory when receiving the first query request, and confirms whether the calling number handles the service of switching the voice call to the video call policy according to the call service information, if so, executes BZ4, and if not, implements the call connection in the prior art (not shown in fig. 4).
BZ 4: and sending a second query request to the AF for querying the voice call information and the video call information of the calling number.
BZ 5: and the AF acquires the voice call information and the video call information from the memory thereof according to the calling number and sends the voice call information and the video call information to the PCF.
BZ 6: the PCF determines whether to switch according to the voice call information and the video call information, that is, whether to switch the voice call mode to the video call mode (for a specific determination method, see the above example, and will not be described herein again), if so, executes BZ7, and if not, implements call connection according to a mode in the prior art (not shown in fig. 4).
BZ 7: the PCF sends the handoff information to the SMF.
BZ 8: the SMF calculates an authorization code according to its ID (see the prior art for a specific calculation method), and sends the authorization code and the handover information to the calling terminal.
BZ 9: the calling terminal may display the handover information on its display for selection by the user and if the user selects information confirming the handover, BZ10 is executed.
BZ 10: the calling terminal calls a preset application program (such as WeChat, QQ and the like) and sends the calling number, the called number and the authorization code to the application program.
BZ 11: the application program sends the calling number, the called number and the authorization code to the video communication server.
BZ 12: the video communication server can locate a Network open Function (NEF) according to the calling number, and initiate a call request (in a video call mode) for the called number to the NEF, and carry the authorization code.
BZ 13: the NEF extracts the ID of the SMF from the authorization code, transmits the authorization code to the SMF based on the ID, and initiates a session connection request to the SMF.
BZ 14: the SMF verifies the authorization code, and selects a User Plane Function (UPF) to establish a connection relation with the video communication server when the authorization code passes the verification.
BZ 15: and the UPF establishes a connection relation with the video communication server according to the knowledge of the SMF.
BZ 16: the SMF initiates a call to the called terminal and receives the response of the called terminal.
BZ 17: the SMF returns a message that the authorization code verification is passed and a message that the connection has been established to the NEF.
BZ 18: the NEF returns a message that the connection is established to the video communication server.
BZ 19: the video communication server returns a message to the application that the connection has been established.
Thus, the call connection between the application program and the called terminal is completed.
According to another aspect of the embodiments of the present disclosure, a session management function entity is also provided in the embodiments of the present disclosure.
Referring to fig. 5, fig. 5 is a schematic diagram of a session management function entity according to an embodiment of the disclosure.
As shown in fig. 5, the session management function entity includes:
the first receiving module 1 is configured to receive a call request, which is sent by a calling terminal and used for calling a called terminal in a voice call manner, where the call request carries a calling number;
a first sending module 2, configured to send a first query request for querying call service information of the calling number to a policy control function entity;
the first receiving module 1 is further configured to receive switching information, which is fed back by the policy control function entity based on the first query request and is used for switching the voice call mode to the video call mode;
the first sending module 2 is further configured to send the switching information to the calling terminal, so that the calling terminal invokes a preset application program when receiving information for confirming switching, which is fed back by a calling user based on the switching information, and establishes a call connection in a video call manner between the calling terminal and the called terminal through the application program.
According to another aspect of the embodiment of the present invention, an embodiment of the present invention provides a policy control function entity.
Referring to fig. 6, fig. 6 is a schematic diagram of a policy control function entity according to an embodiment of the disclosure.
As shown in fig. 6, the policy control function entity includes:
a second receiving module 11, configured to receive a first query request sent by a session management function entity and used to query the call service information of the calling number, where the first query request is sent when the session management function entity receives a call request sent by a calling terminal to call a called terminal in a voice call manner;
the judging module 12 is configured to judge whether the calling number handles a service of switching a voice call to a video call policy according to pre-stored call service information;
a second sending module 13, configured to send, to the application service entity, a second query request for querying the voice call information and the video call information of the calling number if the call number is the first call number;
the second receiving module 11 is further configured to receive voice call information and video call information fed back by the application service entity according to the second query request;
the judging module 12 is further configured to judge whether to switch the voice call mode to the video call mode according to the voice call information and the video call information;
the second sending module 13 is further configured to, if yes, send, to the session management functional entity, switching information for switching the voice call mode to a video call mode, so that the session management functional entity sends the switching information to the calling terminal.
In some embodiments, the voice call information comprises: the allowance of the voice call duration of the current combo and the allowance of the voice call duration of each month in a preset first duration;
the video call information includes: the balance of the data flow of the video call of the current package and the balance of the data flow of the video call of each month in the first time length.
In some embodiments, the determining module 12 is specifically configured to:
calculating the average duration of the voice call of the calling number in the first duration according to the allowance of the voice call duration of each month in the preset first duration;
calculating the average data flow value of the video call of the calling number in the first time length according to the allowance of the data flow of the video call of each month in the first time length;
and determining whether to switch the voice call mode to the video call mode according to the average time length, the average data flow value, the allowance of the voice call time length of the current package and the allowance of the data flow of the video call of the current package.
In some embodiments, the voice call information further comprises: the voice call duration between the calling terminal and the called terminal is within a preset second duration;
the video call information further includes: the value of the data traffic of the video call between the calling terminal and the called terminal within the second duration;
wherein the second duration is less than the first duration.
According to another aspect of the embodiment of the present invention, a terminal is further provided in the embodiment of the present disclosure.
Referring to fig. 7, fig. 7 is a schematic diagram of a terminal according to an embodiment of the disclosure.
As shown in fig. 7, the terminal includes:
a third sending module 21, configured to send a call request for calling a called terminal in a voice call manner to a session management function entity, where the call request carries a calling number;
a third receiving module 22, configured to receive switching information that is sent by the session management functional entity and is based on the call request feedback, where the switching information is used to switch the voice call mode to a video call mode;
and the calling module 23 is configured to call a preset application program in response to the information for confirming the handover, which is fed back by the calling user based on the handover information, so as to establish a call connection in a video call manner between the calling terminal and the called terminal through the application program.
According to another aspect of the embodiments of the present disclosure, there is also provided a call setup system, including:
a session management function as in any one of the above embodiments;
a policy control function as described in any one of the above embodiments;
a terminal as claimed in any preceding embodiment.
The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
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. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, 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 of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including 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 steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should also be understood that, in the embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. A method for call setup, the method comprising:
receiving a call request which is sent by a calling terminal and used for calling a called terminal in a voice communication mode, wherein the call request carries a calling number;
sending a first query request for querying call service information of the calling number to a policy control function entity;
receiving switching information which is fed back by the policy control function entity based on the first query request and is used for switching the mode of the voice call into the mode of the video call; the switching information is sent after the policy control functional entity judges that the voice call mode is switched to the video call mode according to the voice call information and the video call information, wherein the voice call information comprises: the allowance of the voice call duration of the current combo and the allowance of the voice call duration of each month in a preset first duration; the video call information includes: the allowance of the data flow of the video call of the current package and the allowance of the data flow of the video call of each month in the first time length;
and sending the switching information to the calling terminal so that the calling terminal calls a preset application program when receiving information for confirming switching fed back by a calling user based on the switching information, and establishes a call connection in a video call mode between the calling terminal and the called terminal through the application program.
2. A method for call setup, the method comprising:
receiving a first query request which is sent by a session management function entity and used for querying call service information of a calling number, wherein the first query request is sent when the session management function entity receives a call request which is sent by a calling terminal and used for calling a called terminal in a voice call mode;
judging whether the calling number handles the service of switching the voice call to the video call strategy or not according to the prestored call service information;
if yes, sending a second query request for querying the voice call information and the video call information of the calling number to an application service entity;
receiving voice call information and video call information fed back by the application service entity according to the second query request; wherein the voice call information includes: the allowance of the voice call duration of the current combo and the allowance of the voice call duration of each month in a preset first duration; the video call information includes: the allowance of the data flow of the video call of the current package and the allowance of the data flow of the video call of each month in the first time length;
judging whether to switch the voice call mode to a video call mode according to the voice call information and the video call information;
if so, sending switching information for switching the voice call mode to the video call mode to the session management functional entity, so that the session management functional entity sends the switching information to the calling terminal.
3. The method according to claim 2, wherein the determining whether to switch the voice call mode to the video call mode according to the voice call information and the video call information comprises:
calculating the average duration of the voice call of the calling number in the first duration according to the allowance of the voice call duration of each month in the preset first duration;
calculating the average data flow value of the video call of the calling number in the first time length according to the allowance of the data flow of the video call of each month in the first time length;
and determining whether to switch the voice call mode to the video call mode according to the average time length, the average data flow value, the allowance of the voice call time length of the current package and the allowance of the data flow of the video call of the current package.
4. A method for call setup, the method comprising:
sending a call request for calling a called terminal in a voice call mode to a session management function entity, wherein the call request carries a calling number;
receiving switching information fed back by the session management function entity based on the call request, wherein the switching information is used for switching the mode of the voice call to the mode of the video call; the switching information is sent to the session management function entity after the policy control function entity judges that the voice call mode is switched to the video call mode according to the voice call information and the video call information, and the voice call information includes: the allowance of the voice call duration of the current combo and the allowance of the voice call duration of each month in a preset first duration; the video call information includes: the allowance of the data flow of the video call of the current package and the allowance of the data flow of the video call of each month in the first time length;
and responding to the information for confirming the switching fed back by the calling user based on the switching information, and calling a preset application program so as to establish the call connection in a video call mode between the calling terminal and the called terminal through the application program.
5. A session management function entity, wherein the session management function entity comprises:
the first receiving module is used for receiving a calling request which is sent by a calling terminal and used for calling a called terminal in a voice communication mode, wherein the calling request carries a calling number;
a first sending module, configured to send a first query request for querying call service information of the calling number to a policy control function entity;
the first receiving module is further configured to receive switching information, which is fed back by the policy control function entity based on the first query request and is used for switching the voice call mode to the video call mode; the switching information is sent after the policy control functional entity judges that the voice call mode is switched to the video call mode according to the voice call information and the video call information, wherein the voice call information comprises: the allowance of the voice call duration of the current combo and the allowance of the voice call duration of each month in a preset first duration; the video call information includes: the allowance of the data flow of the video call of the current package and the allowance of the data flow of the video call of each month in the first time length;
the first sending module is further configured to send the switching information to the calling terminal, so that the calling terminal invokes a preset application program when receiving information for confirming switching, which is fed back by a calling user based on the switching information, and establishes a call connection in a video call manner between the calling terminal and the called terminal through the application program.
6. A policy control function entity, characterized in that the policy control function entity comprises:
the second receiving module is used for receiving a first query request which is sent by a session management functional entity and used for querying call service information of a calling number, wherein the first query request is sent when the session management functional entity receives a call request which is sent by a calling terminal and used for calling a called terminal in a voice call mode;
the judging module is used for judging whether the calling number handles the business of switching the voice call to the video call strategy or not according to the prestored call service information;
the second sending module is used for sending a second query request for querying the voice call information and the video call information of the calling number to an application service entity if the calling number is the calling number;
the second receiving module is further configured to receive voice call information and video call information fed back by the application service entity according to the second query request; the voice call information includes: the allowance of the voice call duration of the current combo and the allowance of the voice call duration of each month in a preset first duration; the video call information includes: the allowance of the data flow of the video call of the current package and the allowance of the data flow of the video call of each month in the first time length;
the judging module is further used for judging whether to switch the voice call mode to the video call mode according to the voice call information and the video call information;
the second sending module is further configured to send, if yes, switching information for switching the voice call mode to the video call mode to the session management function entity, so that the session management function entity sends the switching information to the calling terminal.
7. The policy control function entity according to claim 6, wherein the determining module is specifically configured to:
calculating the average duration of the voice call of the calling number in the first duration according to the allowance of the voice call duration of each month in the preset first duration;
calculating the average data flow value of the video call of the calling number in the first time length according to the allowance of the data flow of the video call of each month in the first time length;
and determining whether to switch the voice call mode to the video call mode according to the average time length, the average data flow value, the allowance of the voice call time length of the current package and the allowance of the data flow of the video call of the current package.
8. A terminal, characterized in that the terminal comprises:
a third sending module, configured to send a call request for calling a called terminal in a voice call manner to a session management function entity, where the call request carries a calling number;
a third receiving module, configured to receive handover information that is sent by the session management function entity and is based on the call request feedback, where the handover information is used to switch the voice call mode to a video call mode; the switching information is sent to the session management function entity after the policy control function entity judges that the voice call mode is switched to the video call mode according to the voice call information and the video call information, and the voice call information includes: the allowance of the voice call duration of the current combo and the allowance of the voice call duration of each month in a preset first duration; the video call information includes: the allowance of the data flow of the video call of the current package and the allowance of the data flow of the video call of each month in the first time length;
and the calling module is used for responding to the information for confirming the switching, which is fed back by the calling user based on the switching information, and calling a preset application program so as to establish the call connection in a video call mode between the calling terminal and the called terminal through the application program.
9. A call set-up system, the system comprising:
a session management function entity according to claim 5;
a policy control function entity according to any one of claims 6 to 7;
the terminal of claim 8.
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