CN116760805A

CN116760805A - Multimedia communication method, communication device, and storage medium

Info

Publication number: CN116760805A
Application number: CN202310562605.9A
Authority: CN
Inventors: 彭莉; 朱晓洁; 马金兰; 雷多萍; 蒋玉香
Original assignee: Guangdong Research Institute China Telecom Co ltd; China Telecom Corp Ltd
Current assignee: Guangdong Research Institute China Telecom Co ltd; China Telecom Corp Ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-09-15

Abstract

The present application relates to a multimedia communication method, a communication device, a storage medium and a computer program product. The method comprises the following steps: and receiving a call request initiated by the call initiator and determining a first network identification of a heterogeneous network accessed by the call initiator. And sending a service quality grade request for the call request to a second session control module, wherein the second session control module serves the called party, and the service quality grade request carries the user identification of the called party and the first network identification. And receiving the service quality grade sent by the second session control module, initiating a call to the second session control module, and distributing multimedia resources for the call request based on the received service quality grade. The second session control module determines a second network identification of the heterogeneous network accessed by the called party based on the user identification of the called party, and is obtained based on the first network identification and the second network identification. By adopting the method, the resource waste can be reduced.

Description

Multimedia communication method, communication device, and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a multimedia communication method, a communication device, a storage medium, and a computer program product.

Background

With the development of communication technology, communication modes become diversified, and various multimedia communication methods are derived, such as video communication, virtual Reality (VR), augmented Reality (Augmented Reality, AR), and holography, in addition to traditional voice communication. Different from the traditional voice communication mode, video communication and future communication modes such as VR, AR, holography and the like, the method also relates to the distribution of multimedia resources in the communication process, such as the distribution of media computing power, the safety management and control of sensitive media and the like.

In the development process of the communication technology, the network constructed at the beginning of development and the later of development and the network constructed among different manufacturers are different, and in the related technology, when the multimedia communication is carried out, the communication is carried out by calling the service quality grades of the two subscriptions respectively. However, the service levels supported by different networks (also referred to as heterogeneous networks) are different, and when two users perform multimedia communication through two different heterogeneous networks, there may occur a case where high quality multimedia resources are allocated but low quality multimedia communication is performed, thereby wasting resources.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a method, a communication device, a computer-readable storage medium, and a computer program product for multimedia communication that can reduce resource waste.

In a first aspect, the present application provides a method of multimedia communication.

The method is applied to a first session control module serving a call initiator; the method comprises the following steps:

receiving a call request initiated by a call initiator;

determining a first network identification of a heterogeneous network accessed by the call initiator;

sending a quality of service level request for the call request to a second session control module; the second session control module serves a called party, and the service quality grade request carries user identification information of the called party and the first network identification;

receiving the service quality grade sent by the second session control module, initiating a call to the second session control module, and distributing multimedia resources for the call request based on the service quality grade; and the service quality grade is obtained by the second session control module by determining a second network identification of the heterogeneous network accessed by the called party based on the user identification information of the called party and based on the first network identification and the second network identification.

In one embodiment, the sending, to the second session control module, a quality of service level request for the call request includes:

inquiring a service address of a second session control module serving the called party based on the user identification information of the called party;

and sending a service quality grade request for the call request to a second session control module based on the service address of the second session control module.

In one embodiment, the receiving the call request initiated by the call initiator includes:

receiving a call request initiated by a call initiator through a target heterogeneous network access module; the target heterogeneous network access module is a heterogeneous network access module corresponding to the heterogeneous network accessed by the calling party; and after the first network identifier receives the call request sent by the call initiator, the first network identifier is added to the call request and sent to the first session control module by the target heterogeneous network access module.

In one embodiment, the method further comprises:

receiving a registration request sent by a user; the registration request contains user identification information;

And storing the corresponding relation between the user identification information and the service address of the first session control module.

In one embodiment, the call request carries user identification information of the call initiator; before receiving the call request initiated by the call initiator, the method further comprises:

receiving a registration request sent by the call initiator; the registration request contains user identification information;

storing the corresponding relation between the user identification information of the call initiator and the first network identification of the heterogeneous network accessed by the call initiator;

the determining the first network identifier of the heterogeneous network accessed by the call initiator comprises the following steps:

and inquiring a first network identifier of the call initiator accessing the heterogeneous network based on the user identifier information carried by the call request.

In a second aspect, the present application also provides a multimedia communication method applied to a second session control module serving a called party, the method comprising:

receiving a service quality grade request sent by a first session control module, and determining user identification information and a first network identification carried by the service quality grade request; the first session control module serves a call initiator, and the first network identifier is a network identifier of a heterogeneous network accessed by the call initiator;

Inquiring a second network identifier of the heterogeneous network accessed by the called party based on the user identifier information carried by the service quality grade request;

inquiring first service quality upper limit information corresponding to the first network identifier and second service quality upper limit information corresponding to the second network identifier;

and determining a quality of service grade based on the first quality of service upper limit information and the second quality of service upper limit information, and sending the quality of service grade to the first session control module.

In one embodiment, before receiving the qos level request sent by the first session control module, the method further comprises:

receiving a registration request sent by the called party; the registration request contains user identification information;

and storing the corresponding relation between the user identification information of the called party and the second network identification of the heterogeneous network accessed by the called party.

In a third aspect, the present application also provides a communication device. The communication device comprises a memory storing a computer program and a processor which when executing the computer program performs the steps of:

receiving a call request initiated by a call initiator;

In a fourth aspect, the present application also provides a communication device. The communication device comprises a memory storing a computer program and a processor which when executing the computer program performs the steps of:

In a fifth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:

receiving a call request initiated by a call initiator;

In a sixth aspect, the present application also provides a computer readable storage medium. The computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:

In a seventh aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of:

receiving a call request initiated by a call initiator;

In an eighth aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of:

The multimedia communication method,

Communication equipment, storage medium and computer program product, before carrying out multimedia communication, confirm the service quality level of this call request through the first network identification of the heterogeneous network that the call initiator inserts and the second network identification of the heterogeneous network that the called party inserts, avoid taking place to distribute the condition of high-quality multimedia resource but carrying out low-quality communication, reduce the waste of resource.

Drawings

FIG. 1 is a diagram of an application environment of a multimedia communication method according to one embodiment;

FIG. 2 is a flow chart of a method of multimedia communication applied to a first session control module according to one embodiment;

FIG. 3 is a flow chart of a method of multimedia communication according to one embodiment;

FIG. 4 is a flow chart of a method of multimedia communication according to one embodiment;

FIG. 5 is a flow chart of a method of multimedia communication according to one embodiment;

FIG. 6 is a flowchart of a method for multimedia communication applied to a second session control module according to one embodiment;

FIG. 7 is a flow diagram of user registration in one embodiment;

FIG. 8 is a flow chart of a method of multimedia communication for different heterogeneous network access in an embodiment;

fig. 9 is a flow chart of a method of multimedia communication accessed by the same heterogeneous network in an embodiment;

fig. 10 is an internal structural diagram of a communication device in one embodiment.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

In the related art, a first session control module receives a call request from a call initiator and transmits the call request to a second session control module. The first session control module determines a quality of service level of the call initiator subscription service and allocates corresponding multimedia resources based on the quality of service level of the call initiator subscription service when a call is initiated. After receiving the call request, the second session control module allocates corresponding multimedia resources based on the quality of service level of the subscribed service of the called party.

In many cases, users access and perform multimedia communications from different heterogeneous networks, where heterogeneous networks are made up of computers and network devices produced by different manufacturers, and in most cases, run on different protocols to support different functions or applications, so that the quality of service that can be supported by heterogeneous networks of different standards is different. Since heterogeneous networks to which different users access are different, the quality of service that can be supported by heterogeneous networks to which both parties of multimedia communication access is different, which results in a situation where communication is performed with low quality of service even if one party is allocated multimedia resources with high quality of service.

Based on this, the present application proposes a method of multimedia communication, which is applied to a first session control module serving a call initiator. The method comprises the following steps: and receiving a call request initiated by the call initiator and determining a first network identification of a heterogeneous network accessed by the call initiator. And sending a service quality grade request for the call request to a second session control module, wherein the second session control module serves the called party, and the service quality grade request carries the user identification of the called party and the first network identification. And receiving the service quality grade sent by the second session control module, initiating a call to the second session control module, and distributing multimedia resources for the call request based on the received service quality grade. The second session control module determines a second network identification of the heterogeneous network accessed by the called party based on the user identification of the called party, and is obtained based on the first network identification and the second network identification.

Before the multimedia communication, the service quality level of the call request is determined by the first network identifier of the heterogeneous network accessed by the calling initiator and the second network identifier of the heterogeneous network accessed by the called party, so that the condition of distributing high-quality multimedia resources but carrying out low-quality communication is avoided, and the waste of resources is reduced. And the multimedia communication method of the application satisfies the service demands of providing different service grades for the same service according to the service quality of the user accessing the network when the multimedia communication user accesses from different heterogeneous networks, realizes the cooperation of the access service quality strategies of the multimedia communication user heterogeneous networks, provides the differentiated service quality taking the access heterogeneous networks as units for the multimedia communication service, and improves the accuracy of the communication service quality.

The multimedia communication method of the application can be applied to the application environment shown in fig. 1. The user terminals are accessed through different heterogeneous networks and interact with the multimedia communication service clusters through different heterogeneous networks, and the different user terminals establish multimedia communication through the multimedia communication service clusters.

The multimedia communication service cluster comprises a plurality of session control modules, a data warehouse and other necessary modules of the multimedia communication service cluster, such as a media computing power resource scheduling, a quality of service (Quality of Service, qoS) rule engine, a sensitive media security management and control, and a plurality of media computing powers for actually performing multimedia computation.

In one embodiment, as shown in fig. 2, a method of multimedia communication is provided, which may be applied to the session control module shown in fig. 1, and it may be understood that the same user terminal may be either a call initiator or a called party, and for convenience of description, the present application is described in terms of a first session control module serving the call initiator, and the first session control module may be any session control module.

There is provided a method of multimedia communication comprising the steps of:

Step 201, a call request initiated by a call initiator is received.

The call request generally includes user identification information of a call initiator and user identification information of a called party.

In particular, the call request may be distributed by the multimedia messaging service cluster to the first session control module: the user terminal corresponding to the call initiator sends the call request to the multimedia communication service cluster through the heterogeneous network accessed by the user terminal, and the multimedia communication service cluster inquires a first session control module serving the call initiator through the user identification information of the call initiator carried by the call request and distributes the call request to the first session control module. The call request may also be sent directly to the first session control module: when the calling initiator registers with the multimedia communication service cluster, the first session control module responds and returns the registration result to the user terminal of the calling initiator by the first session control module, the calling initiator stores the service address of the first session control module for sending the registration result after receiving the registration result, and when the calling request is initiated, the calling request is sent to the first session control module based on the stored service address of the first session control module.

Step 203, determining a first network identifier of a heterogeneous network accessed by a call initiator.

Specifically, the call initiator can firstly send a call request to a heterogeneous network access module in the multimedia communication service cluster through the accessed heterogeneous network, the heterogeneous network access module determines the heterogeneous network through which the call request passes, adds a first network identifier of the heterogeneous network accessed by the call initiator to the call request, and then sends the first network identifier to a first session control module, and the first session control module determines the first network identifier of the heterogeneous network accessed by the call initiator according to the network identifier carried by the call request. The first session control module may further store a correspondence between user identification information of the call initiator and a first network identification of a heterogeneous network to which the call initiator is connected when the call initiator registers with the multimedia communication service cluster, and query the first network identification of the heterogeneous network to which the call initiator is connected based on the user identification information of the call initiator carried by the call request when the first session control module receives the call request.

Step 205, a quality of service level request for the call request is sent to the second session control module.

The second session control module serves the called party, and the service quality grade request carries user identification information of the called party and the first network identification.

Specifically, before communication, the calling initiator needs to negotiate the service quality level with the called party and allocate multimedia resources for the call request with the negotiated service quality level. After the first session control module determines the first network identifier of the heterogeneous network accessed by the calling initiator, a service quality grade request is constructed by the first network identifier and the user identifier information of the called party, and the constructed service quality grade request is sent to the second session control module serving the called party.

Step 207, receiving the quality of service level sent by the second session control module, initiating a call to the second session control module, and allocating multimedia resources to the call request based on the quality of service level.

The second session control module determines a second network identifier of the heterogeneous network accessed by the called party based on the user identifier information of the called party, and is obtained based on the first network identifier and the second network identifier.

Specifically, after receiving the service quality level request, the second session control module queries a second network identifier of the heterogeneous network accessed by the called party through the user identification information of the called party carried by the service quality level request, and then queries first service quality upper limit information corresponding to the first network identifier and second service quality upper limit information corresponding to the second network identifier respectively, and further determines the service quality level of the call request based on the first service quality upper limit information and the second service quality upper limit information. After determining the quality of service level of the call request, the second call control module sends the determined quality of service level to the first call control module. After the first session control module receives the service quality grade sent by the second session control module, a call is initiated to the second session control module, and multimedia resources are allocated to the call request based on the service quality grade sent by the second session control module.

Fig. 3 is a flow chart of a multimedia communication method according to an embodiment of the application, which includes the following steps:

step 301, a user terminal used by a call initiator sends a call request to a first session control module serving the call initiator through an accessed heterogeneous network.

Step 302, the first session control module queries a first network identifier for determining a heterogeneous network to which the call initiator has access.

Step 303, the first session control module sends a quality of service class request carrying user identification information of the called party and the first network identification to the second session control module serving the called party.

Step 304, the second session control module queries the second network identifier of the heterogeneous network accessed by the called party according to the user identifier information of the called party.

Step 305, the second session control module queries the first quality of service upper limit information corresponding to the first network identifier and the second quality of service upper limit information corresponding to the second network identifier, and determines the quality of service level of the call request based on the first quality of service upper limit information and the second quality of service upper limit information.

Step 306, the second session control module sends the determined quality of service level to the first session control module.

Step 307, the first session control module initiates a call to the second session control module.

Step 308, the first session control module allocates multimedia resources for the call request based on the received quality of service level.

Step 309, the second session control module allocates multimedia resources for the call request based on the determined quality of service level.

In this embodiment, before the multimedia communication is performed, the service quality level of the call request is determined by the first network identifier of the heterogeneous network accessed by the calling initiator and the second network identifier of the heterogeneous network accessed by the called party, so that the situation that high-quality multimedia resources are allocated but low-quality communication is performed is avoided, and the waste of resources is reduced. And the multimedia communication method of the application satisfies the service demands of providing different service grades for the same service according to the service quality of the user accessing the network when the multimedia communication user accesses from different heterogeneous networks, realizes the cooperation of the access service quality strategies of the multimedia communication user heterogeneous networks, provides the differentiated service quality taking the access heterogeneous networks as units for the multimedia communication service, and improves the accuracy of the service quality.

In one embodiment, the step 205 specifically includes:

step 205A, based on the user identification information of the called party, the service address of the second session control module serving the called party is queried.

Specifically, after receiving the call request, the first session control module determines the called party for which the call request is directed, and queries the service address of the second session control module serving the called party based on the user identification information of the called party.

In one embodiment, the multimedia communication service cluster includes a data warehouse module, and when a user registers with the multimedia communication service cluster, the data warehouse module stores a corresponding relationship between a service address of a session control module responding to a user registration request and user identification information, and after receiving a call request, the first session control module queries the data warehouse module for a service address of a second session control module serving the called party based on the user identification information of the called party.

Step 205B, based on the service address of the second session control module, sends a quality of service class request for the call request to the second session control module.

Specifically, after the first session control module queries the service address of the second session control module, a quality of service class request is constructed by using the first network identifier and the user identifier information of the called party, and the constructed quality of service class request is sent to the second session control module serving the called party.

Fig. 4 is a flow chart of a multimedia communication method according to an embodiment of the application, which includes the following steps:

step 401, a user terminal used by a call initiator sends a call request to a first session control module serving the call initiator through an accessed heterogeneous network.

Step 402, the first session control module queries and determines a first network identifier of a heterogeneous network accessed by the call initiator, and sends a service address request carrying user identification information of the called party to the data warehouse module.

Step 403, the data warehouse module queries the service address of the second session control module serving the called party according to the user identification information of the called party, and sends the queried service address to the first session control module.

Step 403, the first session control module sends a service quality level request carrying the user identification information of the called party and the first network identification to the second session control module based on the service address of the second session control module.

Step 403, the second session control module queries the second network identifier of the heterogeneous network accessed by the called party according to the user identifier information of the called party.

Step 406, the second session control module queries the first quality of service upper limit information corresponding to the first network identifier and the second quality of service upper limit information corresponding to the second network identifier, and determines the quality of service level of the call request based on the first quality of service upper limit information and the second quality of service upper limit information.

Step 407, the second session control module sends the determined quality of service level to the first session control module.

Step 408, the first session control module initiates a call to the second session control module.

Step 409, the first session control module allocates multimedia resources for the call request based on the received quality of service level.

Step 410, the second session control module allocates multimedia resources for the call request based on the determined quality of service level.

In this embodiment, the service address of the second session control module serving the called party is queried through the user identification information of the called party, so that the first session control module negotiates the service quality of the call request with the second session control module based on the queried service address, thereby reducing the resource waste in the call request.

In one embodiment, the step 201 specifically includes:

And receiving a call request initiated by the call initiator through the target heterogeneous network access module.

The target heterogeneous network access module is a heterogeneous network access module corresponding to a heterogeneous network accessed by a calling party; after the first network identifier receives a call request sent by a call initiator, the target heterogeneous network access module adds the first network identifier to the call request and sends the first network identifier to the first session control module.

Specifically, a user terminal used by a call initiator sends a call request to a target heterogeneous network access module contained in a multimedia communication service cluster through an accessed heterogeneous network, after the target heterogeneous network access module receives the call request, a first network identifier of the heterogeneous network sending the call request is determined, the first network identifier is added to the call request, and then the call request added with the first network identifier is sent to a first session control module.

Fig. 5 is a flow chart of a multimedia communication method according to another embodiment of the application, which comprises the following steps:

step 501, the user terminal used by the call initiator sends the call request to the heterogeneous network access module through the accessed heterogeneous network.

Step 502, the heterogeneous network access module determines a heterogeneous network accessed by the call initiator, and adds a first network identifier of the heterogeneous network accessed by the call initiator to the call request.

In step 503, the heterogeneous network access module sends the call request added with the first network identifier to the first session control module serving the call initiator.

Step 504, the first session control module queries the network identifier carried by the call request and determines the first network identifier of the heterogeneous network accessed by the call initiator.

Step 505, the first session control module sends a quality of service class request carrying user identification information of the called party and the first network identification to the second session control module serving the called party.

Step 506, the second session control module queries the second network identifier of the heterogeneous network accessed by the called party according to the user identifier information of the called party.

Step 507, the second session control module queries the first quality of service upper limit information corresponding to the first network identifier and the second quality of service upper limit information corresponding to the second network identifier, and determines the quality of service level of the call request based on the first quality of service upper limit information and the second quality of service upper limit information.

Step 508, the second session control module sends the determined quality of service level to the first session control module.

Step 509, the first session control module initiates a call to the second session control module.

Step 510, the first session control module allocates multimedia resources for the call request based on the received quality of service level.

Step 511, the second session control module allocates multimedia resources for the call request based on the determined quality of service level.

In this embodiment, the heterogeneous network access module adds the first network identifier of the heterogeneous network accessed by the call initiator to the call request, so that the first session control module can negotiate the service quality level of the call request with the second session control module based on the first network identifier, thereby reducing the resource waste in the call request.

In one embodiment, the method further comprises:

step 209, receiving a registration request sent by a user.

Wherein the registration request contains user identification information. The registration request may be used to assign a session control module serving the registered user terminal.

Specifically, when the user terminal communicates with the multimedia communication service cluster through the accessed heterogeneous network for the first time, the user terminal initiates a registration request to the multimedia communication service cluster through the accessed heterogeneous network, and the multimedia communication service cluster distributes the registration request to the first session control module.

When the user terminal is changed from the heterogeneous network a to the heterogeneous network B, the information such as the network address changes due to the change of the access network, and the session control module to be served also changes, so that the user terminal needs to register again when accessing the heterogeneous network B for the first time.

Step 211, storing the corresponding relation between the user identification information and the service address of the first session control module.

Specifically, after receiving a registration request sent by a user, the first session control module stores a corresponding relationship between the registration request carrying user identification information and a service address of the session control module.

In one embodiment, after receiving the registration request, the first session control module sends the registration request to the data warehouse module, the data warehouse module authenticates the user, after the authentication passes, the corresponding relation between the user identification information and the service address of the first session control module is saved, and the service subscription data of the user is sent to the first session control module, so that the first session control module can negotiate according to the service subscription data of the user when negotiating the service quality level of the call request related to the user with other session control modules.

In this embodiment, when a user initiates a registration request, the corresponding relationship between the user identification information and the service address of the session control module is saved, so that when other session control modules send a call request to the first session control module, the service address of the first session control module can be queried based on the user identification information of the called party, and the service quality level of the call request can be negotiated with the first session control module.

In one embodiment, the call request carries user identification information of the call initiator, and before executing step 201, the method further includes:

step 213, receiving a registration request sent by the call initiator.

Wherein the registration request contains user identification information. The registration request may be used to save a network identification of the heterogeneous network to which the registered user terminal has access.

Step 215, storing the corresponding relation between the user identification information of the call initiator and the first network identification of the heterogeneous network accessed by the call initiator.

Specifically, after receiving a registration request sent by a user, the first session control module stores a correspondence between user identification information of a call initiator and a first network identification of a heterogeneous network accessed by the call initiator.

In one embodiment, the first session control module sends the registration request to the data warehouse module after receiving the registration request, the data warehouse module authenticates the user, and after the authentication passes, the corresponding relation between the user identification information and the network identification of the heterogeneous network to which the user identification information is connected is saved.

At this time, the step 203 includes:

and inquiring a first network identifier of the call initiator accessed to the heterogeneous network based on the user identifier information carried by the call request.

Specifically, when a call initiator sends a call request, user identification information of the call initiator is added to the call request and sent to a first session control module, and the first session control module inquires a first network identification of the call initiator for accessing a heterogeneous network based on the user identification information carried by the call request.

In one embodiment, if the correspondence between the user identification information and the network identification is stored in the data warehouse module, the first session control module requests the network identification corresponding to the user identification information of the call initiator from the data warehouse module based on the user identification information carried by the call request, and after the data warehouse module queries, the data warehouse module sends the queried first network identification to the first session control module.

In this embodiment, when the call giving up party registers, the first session control module stores the user identification information and the network identification of the heterogeneous network to which the user is connected, so that when the first session control module receives the call request sent by the user, the first network identification of the heterogeneous network to which the call originating party is connected is determined according to the user identification information of the user, and then the service quality level of the call request is negotiated with the second session control module by using the first network identification, thereby reducing the resource waste in the call request.

In one embodiment, as shown in fig. 6, the present application further provides a multimedia communication method, which may be applied to the session control module shown in fig. 1, and it may be understood that the same user terminal may be either a call initiator or a callee, and for convenience of description, the present application is described with respect to a second session control module serving the callee, where the second session control module may be any session control module.

There is provided a method of multimedia communication comprising the steps of:

step 601, a service quality level request sent by a first session control module is received, and user identification information and a first network identifier carried by the service quality level request are determined.

The first session control module serves the call initiator, and the first network identifier is a network identifier of a heterogeneous network accessed by the call initiator. The user identification information carried by the service quality grade request is the user identification information corresponding to the called party of a certain call request.

Specifically, the first session control module sends a quality of service level request for a call request to the second session control module in the manner of steps 201-205 described above. The second session control module receives the service quality grade request sent by the first session control module, and determines user identification information carried by the service quality grade request and the first network identification.

Step 603, inquiring a second network identifier of the heterogeneous network accessed by the called party based on the user identifier information carried by the service quality class request.

Specifically, if the correspondence between the user identification information and the network identification is stored in the second session control module, the second session control module queries the second network identification of the heterogeneous network accessed by the called party based on the user identification information carried by the service quality level request after receiving the service quality level request sent by the first session control module. If the corresponding relation between the user identification information and the network identification is stored in the data warehouse module, the second session control module requests the second network identification of the heterogeneous network accessed by the called party from the data warehouse module based on the user identification information carried by the service quality grade request after receiving the service quality grade request sent by the first session control module.

Step 605, query the first quality of service upper limit information corresponding to the first network identifier and the second quality of service upper limit information corresponding to the second network identifier.

Specifically, the multimedia communication service cluster may store the service quality upper limit information of each heterogeneous network in advance, or may store the service quality upper limit information of each heterogeneous network. If the multimedia communication service cluster can pre-store the service quality upper limit information of each heterogeneous network, the second session control module directly queries the first service quality upper limit information corresponding to the first network identifier based on the first network identifier, and queries the second service quality upper limit information corresponding to the second network identifier based on the second network identifier. If the multimedia communication service cluster pre-stores the service quality upper limit information of each heterogeneous network, the second session control module determines the heterogeneous network type corresponding to the first network identifier based on the first network identifier, then queries the first service quality upper limit information corresponding to the first network identifier based on the heterogeneous network type corresponding to the first network identifier, determines the heterogeneous network type corresponding to the second network identifier based on the second network identifier, and queries the first service quality upper limit information corresponding to the second network identifier based on the heterogeneous network type corresponding to the second network identifier.

The service quality upper limit information corresponding to each network identifier can be obtained when each heterogeneous network communicates with the multimedia communication service cluster for the first time.

Step 607, determining a quality of service class based on the first quality of service upper limit information and the second quality of service upper limit information, and transmitting the quality of service class to the first session control module.

Specifically, when determining the quality of service level, if the quality of service level of the subscribed service is not related, the second session control module selects one with lower quality of service from the first quality of service upper limit information and the second quality of service upper limit information as the quality of service level of the call request. If the service quality grade of the contracted service is related, the second session control module selects one with lower service quality from the first service quality upper limit information and the second service quality upper limit information as the service quality grade upper limit of the call request, and then further determines the service quality grade of the call request according to the service quality grade of the contracted service of the calling initiator and the service quality grade of the contracted service of the called party by limiting the service quality grade upper limit of the call request. After the second session control module determines the service quality level of the call request, the determined service quality level is sent to the first session control module, so that the first session control module initiates a call and allocates multimedia resources according to the service quality level.

In this embodiment, before the multimedia communication is performed, the service quality level of the call request is determined by the first network identifier of the heterogeneous network accessed by the calling initiator and the second network identifier of the heterogeneous network accessed by the called party, so that the situation that high-quality multimedia resources are allocated but low-quality communication is performed is avoided, and the waste of resources is reduced. And the multimedia communication method of the application satisfies the service demands of providing different service grades for the same service according to the service quality of the user accessing the network when the multimedia communication user accesses from different heterogeneous networks, realizes the cooperation of the access service quality strategies of the multimedia communication user heterogeneous networks, provides the differentiated service quality taking the access heterogeneous networks as units for the multimedia communication service, and improves the accuracy of the communication service quality.

In one embodiment, before performing step 601, the method further includes:

step 609, receiving a registration request sent by the called party.

Specifically, when the called party communicates with the multimedia communication service cluster through the accessed heterogeneous network for the first time, the called party initiates a registration request to the multimedia communication service cluster through the accessed heterogeneous network, and the multimedia communication service cluster distributes the registration request to the second session control module.

Step 611, the correspondence between the user identification information of the called party and the second network identification of the heterogeneous network accessed by the called party is saved.

Specifically, after receiving a registration request sent by a user, the second session control module stores a correspondence between user identification information of a called party and a first network identification of a heterogeneous network accessed by the called party.

In one embodiment, the second session control module sends the registration request to the data warehouse module after receiving the registration request, the data warehouse module authenticates the user, and after the authentication passes, the corresponding relation between the user identification information and the network identification of the heterogeneous network to which the user identification information is connected is saved.

In this embodiment, when the called party registers, the second session control module stores the user identification information and the network identification of the heterogeneous network to which the user is connected, so that when the second session control module receives the service quality level request, the second session control module can determine the second network identification of the heterogeneous network to which the called party is connected based on the user identification information carried by the service quality level request, and further determine the service quality level of the call request according to the first network identification carried by the service quality level request and the queried second network identification, thereby reducing the resource waste in the call request.

As shown in fig. 7, the user registration process according to an embodiment of the present application includes the following steps:

in step 701, the user terminal X accesses from the heterogeneous network a, and sends a registration request to the heterogeneous network access module a. The registration request may carry information such as a user name, user location information, terminal capabilities, etc.

Step 702, the heterogeneous network access model a adds the network identifier of the heterogeneous network a to the registration request.

In step 703, the heterogeneous network access module a forwards the registration request added with the network identifier to the session control module.

Step 704, the session control module forwards the registration request sent by the heterogeneous network access module a to the data warehouse module.

Step 705, the data warehouse module authenticates the user terminal X based on the information carried by the registration request, and after the authentication is successful, the corresponding relationship between the user identification information of the user terminal X and the network identification of the heterogeneous network a is saved, and the corresponding relationship between the user identification information of the user terminal X and the service address of the session control module is saved.

Step 706, the data warehouse queries the service subscription data of the user terminal X and the service QoS class when accessing from the heterogeneous network a, and sends the service subscription data of the user terminal X and the service QoS class when accessing from the heterogeneous network a to the session control module.

Step 707, the session control module stores the service subscription data of the user terminal X and the service QoS class when accessing from the heterogeneous network a.

Step 708, the session control module sends a response to the access module a with heterogeneous network that the registration was successful.

Step 709, after receiving the response of successful registration sent by the session control module, the heterogeneous network access module a sends a response of successful registration to the user terminal X.

As shown in fig. 8, a user communication process is shown in accordance with an embodiment of the present application. The calling party is a user terminal 1, the user terminal 1 is accessed from a heterogeneous network A, the called party is a user terminal 2, the terminal 2 is accessed from a heterogeneous network B, the heterogeneous network access module 1 and the session control module 1 serve the user terminal 1, and the heterogeneous network access module 2 and the session control module 2 serve the user terminal 2.

Step 801, the user terminal 1 sends a call request to the heterogeneous network access module 1.

In step 802, the heterogeneous network access module 1 adds the network identifier of the heterogeneous network a to the call request.

Step 803, the heterogeneous network access module 1 sends the call request added with the network identifier to the session control module 1.

Step 804, the session control module 1 requests the service address of the session control module 2 from the data repository based on the user identification information of the user terminal 2.

Step 805, the data repository queries the service address of the session control module 2 and sends the service address of the session control module 2 to the session control module 1.

Step 806, the session control module 1 sends a quality of service class request to the session control module 2 based on the service address of the session control module 2, where the quality of service class request carries the user identification information of the called party, the network identification of the heterogeneous network a, the service subscribed by the user terminal a, and the corresponding quality of service class.

In step 807, the session control module 2 queries the second network identifier of the heterogeneous network accessed by the called party, and queries the first quality of service upper limit information corresponding to the first network identifier and the second quality of service upper limit information corresponding to the second network identifier, respectively, and uses the lower quality of service upper limit information as the quality of service upper limit information of the call request. And determining the service quality grade of the call request based on the service quality upper limit information of the call request and the service quality grade of the subscription of the call initiator and the called party.

Step 808, the session control module 2 returns the quality of service level of the call request to the session control module.

Step 809, the session control module 1 sends a call request to the session control module 2.

Step 810, the session control module 1 allocates multimedia resources at the quality of service level of the call request.

In step 811, the session control module 2 allocates multimedia resources at the quality of service level of the call request.

Step 812, the ue 1 performs multimedia communication with the ue 2.

As shown in fig. 9, a user communication process is shown according to an embodiment of the present application. The calling party is the user terminal 1, the user terminal 1 is accessed from the heterogeneous network A, the called party is the user terminal 2, the terminal 2 is also accessed from the heterogeneous network A, the heterogeneous network access module 1 and the session control module 1 serve the user terminal 1, and the heterogeneous network access module 2 and the session control module 2 serve the user terminal 2.

Step 901, the user terminal 1 sends a call request to the heterogeneous network access module 1.

In step 902, the heterogeneous network access module 1 adds the network identifier of the heterogeneous network a to the call request.

In step 903, the heterogeneous network access module 1 sends the call request with the network identifier added to the session control module 1.

Step 904, the session control module 1 requests the service address of the session control module 2 from the data repository based on the user identification information of the user terminal 2.

Step 905, the data repository queries the service address of the session control module 2, and sends the service address of the session control module 2 to the session control module 1.

Step 906, the session control module 1 sends a quality of service class request to the session control module 2 based on the service address of the session control module 2, where the quality of service class request carries the network identifier of the heterogeneous network a, the service subscribed by the user terminal a, and the corresponding quality of service class.

In step 907, the session control module 2 queries a first network identifier of a heterogeneous network accessed by the called party, the call initiator is the same as the heterogeneous network accessed by the called party, queries first quality of service upper limit information corresponding to the first network identifier, and uses the first quality of service upper limit information as quality of service upper limit information of the call request. And determining the service quality grade of the call request based on the service quality upper limit information of the call request and the service quality grade of the subscription of the call initiator and the called party.

Step 908, the session control module 2 returns the quality of service level of the call request to the session control module.

Step 909, the session control module 1 sends a call request to the session control module 2.

In step 910, the session control module 1 allocates multimedia resources at the quality of service level of the call request.

Step 911, session control module 2 allocates the multimedia resources at the quality of service level of the call request.

Step 912, the ue 1 performs multimedia communication with the ue 2.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

In one embodiment, a communication device is provided, which may be a server, and the internal structure thereof may be as shown in fig. 10. The communication device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the communication device is configured to provide computing and control capabilities. The memory of the communication device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the communication device is used for storing the corresponding relation data of the user identification information and the network identification. The network interface of the communication device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a method of multimedia communication.

It will be appreciated by those skilled in the art that the structure shown in fig. 10 is merely a block diagram of a portion of the structure associated with the present inventive arrangements and is not limiting of the communication device to which the present inventive arrangements are applied, and that a particular communication device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, there is also provided a communication device including a memory and a processor, the memory storing a computer program which, when executed, implements the steps of the respective multimedia communication method embodiments described above as applied to the first session control module or as applied to the respective multimedia communication method embodiments of the second session control module.

In one embodiment, a computer readable storage medium is provided, on which a computer program is stored which, when executed by a processor, implements the steps described above for each of the multimedia communication method embodiments applied to the first session control module or for each of the multimedia communication method embodiments applied to the second session control module.

The user information (including but not limited to user equipment information, user personal information, etc.) and the data (including but not limited to data for analysis, stored data, presented data, etc.) related to the present application are information and data authorized by the user or sufficiently authorized by each party.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims

1. A method of multimedia communication, characterized in that the method is applied to a first session control module serving a call initiator; the method comprises the following steps:

receiving a call request initiated by a call initiator;

2. The method of claim 1, wherein the sending a quality of service level request for the call request to the second session control module comprises:

3. The method of claim 1, wherein receiving the call request initiated by the call initiator comprises:

4. The method according to claim 1, wherein the method further comprises:

5. The method of claim 1, wherein the call request carries user identification information of the call initiator; before receiving the call request initiated by the call initiator, the method further comprises:

6. A method of multimedia communication, the method being applied to a second session control module serving a called party, the method comprising:

7. The method of claim 6, wherein prior to receiving the quality of service level request sent by the first session control module, the method further comprises:

8. A communication device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 5 or 6 to 7 when the computer program is executed.

9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 5 or 6 to 7.

10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 5 or 6 to 7.