KR100586046B1 - Negotiation method between/of system for multimedia service - Google Patents

Abstract

The present invention relates to an inter-system negotiation method for a multimedia service. According to the method of the present invention, a plurality of user agents and a plurality of service agents can be separately managed and controlled by the user management agent and the service management agent, thereby easily recovering when a service problem occurs, and by using an encryption key. Respond to replication or security issues. In addition, since the user accesses the registered user management agent and uses the registered terminal information, the amount of work to be reduced is reduced. When the service negotiation is performed, the user agent and the service agent need to connect with each management agent so that the interface is simple and compatible. It has an easy effect.

Multimedia Service, Service Negotiation, User Agent, Service Agent, User Management Agent, Service Management Agent

Description

NEGOTIATION METHOD BETWEEN / OF SYSTEM FOR MULTIMEDIA SERVICE}

1 is a block diagram showing the overall configuration of a system for a multimedia service to which the present invention is applied.

2 is a diagram illustrating a processing procedure of an inter-system negotiation method for a multimedia service according to an exemplary embodiment of the present invention.

3 is a diagram illustrating a user information registration process of the process shown in FIG.

4 is a diagram illustrating a service information registration process in the process shown in FIG. 2;

<Description of the symbols for the main parts of the drawings>

11 ~ 13: Service Agent 20: Service Management Agent

31 ~ 33: User agent 40: User management agent

The present invention relates to a system-to-system negotiation method for a multimedia service, and more particularly, a plurality of user agents and a plurality of service agents are controlled by a user management agent and a service management agent, respectively, for a multimedia service connected through a network. The present invention relates to a method of negotiating between systems that separately manages user and service provision in a system.

The multimedia service system has a hardware configuration in which a plurality of user agents and a plurality of service agents are networked, and the inter-system negotiation has a predetermined priority between service requests from these user agents and service provision from the service agents. This means how to properly manage and process service needs and service provision.

Currently, the multimedia service system is used in a wide variety of functions and environments, such as a computer, a home appliance, a portable terminal, etc. In order to effectively process the multimedia service, a service suitable for the characteristics of the terminal should be provided. Until now, since multimedia services suitable for each independent device such as a TV, a computer, and a mobile phone have been provided, there is no big problem even when the user does not have accurate information on the terminal. In the case of a simple system, a user inputs the terminal information directly. Was used.

However, with the diversification of terminal devices and the development of communication technology, information of a terminal is required to perform a multimedia service in an integrated environment, and for this, a protocol for matching compatibility between terminals is required. These protocols are not only time-consuming because they must follow predefined negotiation rules, but also have difficulty in compatibility, system maintenance, and expansion of negotiation between products from other companies with different protocols.

On the other hand, as a related prior patent, Korean Patent Application No. 1997-54909 (Application Date: October 24, 1997) is filed "Terminal negotiation method for multimedia service in open communication network". The preceding patent is characterized in that the user terminal negotiates with the service system, but it is not a structure that separates and controls the user agent and the service agent providing the service. It can't be structured.

In addition, as a related prior patent, Korean Patent Application No. 1998-52959 (Application Date: December 3, 1998) is filed "Performance specification and negotiation method in client / server system". The preceding patent is a system that initially connects the client and the server, receives a performance dictionary from the server to determine the performance specification according to the characteristics of the host, the server can be recognized according to the object or the status value of the object It is characterized by providing a performance specification and a negotiation method in a client / server system that allows a separate performance specification. However, the preceding patent is not a structure that separates and controls a user agent and a service agent that provides a service, and thus the structure does not expect compatibility for negotiation between a user interface and a third-party product.

That is, in the related art, in order to provide multimedia services between various terminals and various service systems, all have to follow a single negotiation protocol. In order to access other products or other services, it has been difficult to expand a lot of time and systems.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described technical problem, and an object thereof is to provide a negotiation method for facilitating quick access and system management in providing a multimedia service by accommodating various user terminals and a service system.

In order to achieve the above object, a system-to-system negotiation method for a multimedia service according to the present invention includes a multimedia service capable of separately managing and controlling a plurality of user agents and a plurality of service agents by a user management agent and a service management agent. Applies to systems for

(a) each user agent and each service agent performing user information registration and service information registration processes with the user management agent and the service management agent, respectively; (b) if any user agent accesses the user management agent to request a service, the user management agent forwards a service request to the service management agent; (c) the service management agent analyzing the delivered service request information to search for a service agent capable of providing a service, and receiving a service availability notification from the service agent; (d) When the service availability notification is received in step (C), the service management agent transmits a service provision profile to the service agent based on the set service information, and receives the service to the user agent through the user management agent. Sending a profile; And (e) the user agent directly accessing the service agent using information of a service reception profile to perform transmission and reception of multimedia data.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

1 shows the overall configuration of a system for a multimedia service to which the present invention is applied.

As shown in FIG. 1, the entire system for a multimedia service includes a plurality of service agents 11, 12, and 13 for providing a multimedia service, and a plurality of user agents 31 for allowing a user to receive a multimedia service. , 32, 33, a service management agent 20 which manages and controls the plurality of service agents 11, 12, and 13, and manages the plurality of user agents 31, 32, and 33 And a user management agent 40 for performing control, wherein each agent is connected to each other via a network.

2 is a flowchart illustrating a processing method of an inter-system negotiation method for a multimedia service according to an exemplary embodiment of the present invention.

When the system-to-system negotiation method for the multimedia service according to the embodiment of the present invention shown in FIG. 2 is started, user information and service information are registered in the user management agent and the service management agent by the user agent and the service agent, respectively. .

Next, the user agent requests access to the user management agent, and the user management agent performs user authentication as to whether or not it is a registered user. If the user authentication is successful, the user agent sends a user request profile to the user management agent, and the user management agent analyzes the profile information and the information of the registered terminal, and then manages the service request profile, which is information required for the service. Send to agent.

After the service management agent analyzes the transmitted service request profile, the service management agent selects a service agent to provide an optimal service and checks whether the service agent of the directly selected service agent can support the service. When the service support notification is received from the service agent, the service management agent transmits a service provision profile to the service agent based on the set service information, and transmits the service reception profile to the user management agent. The user management agent transmits the received service reception profile to the corresponding user agent.

The service receiving profile includes a service agent IP, a service ID, and an encryption key. The service providing profile includes a video ID, an encryption key, and video and audio information and communication information suitable for a multimedia stream according to the user terminal information. do. If the service requested by the user agent does not match the information of the terminal and fails to provide the service, the service management agent further negotiates detailed terminal information to the user management agent.

The transmission and reception of a large amount of multimedia data is initiated by direct access of the corresponding user agent and service agent using information in the service reception profile. When the multimedia service is started in this way, the user management agent receives the service start notification information from the user agent and registers the service start information. In addition, the service management agent receives the service start information from the user agent and registers the service providing information so that the service can be recovered from problems, and can be used for usage details, usage fees, and the like. When the multimedia service ends, the user agent transmits service termination notification information to the user management agent similar to the service start process, and the user management agent registers it. In addition, the service management agent receives the service termination notification information to register the service termination information to be used later.

FIG. 3 illustrates a process of registering user information at the user agent in the process illustrated in FIG. 2.

A user agent not registered with a user management agent must first register its user information. 3 is a flowchart illustrating a process for a user agent to register user information with a user management agent.

When the registration process is started, it is determined whether it is a user registration process (S11), and in the case of a user registration process, a process of registering user information (S12) is performed. Next, it is determined whether the registration is terminal information (S13). If it is determined that the registration is terminal information, the profile file is corrected or created (S14). Next, it is determined whether a profile file exists (S15). If a profile file exists in step S15, the profile file is transmitted (S17), and if the profile file does not exist, information is input (S16). . Next, information on the terminal is created or modified according to the profile file or the input information (S18), and it is determined whether input or correction of the terminal information is completed (S19). When the input or correction of the terminal information is not completed in step S19, the process jumps to step S15. The terminal information includes video information such as screen size and resolution necessary for processing a multimedia service, audio information such as sample rate and channel, communication network information such as support compression codec information, access network and communication speed, and the like. Include.

When the input or the correction is completed in the step S19, a step S20 of determining whether the input or the corrected content is confirmed is performed. When the input or the corrected content is confirmed, the user information database is determined. An update step S21 is performed to terminate the user information registration process.

4 illustrates a service information registration process among the processes illustrated in FIG. 2.

A user agent not registered with the service management agent must first register user information. When the service information registration process is started, it is first determined whether it is the first registration (S31). In the case of initial registration in step S31, step S32 of registering user information is performed. Next, it is determined whether the search for the registered information is required (S33), and if so, the search for the registered information is performed (S34). Next, new service information for the registered user is created or service information is modified (S35). It is determined whether the input continues (S36), and if there is no further input, updating the service information database (S37) is performed, and the service information registration process is terminated. The service information includes video information such as image size and resolution necessary for processing a multimedia service, audio information such as a sample rate and a channel, information about a compression codec and quality of service (QoS), and the like. .

The system-to-system negotiation method for a multimedia service according to an embodiment of the present invention may be manufactured as a computer program and stored in a recording medium such as a hard disk, a floppy disk, a magneto-optical disk, a CD-ROM, a ROM, a RAM, or the like.

As described above, the present invention allows the user management agent and the service management agent to separately manage and control a plurality of user agents and a plurality of service agents, thereby easily recovering when a service problem occurs, and by using an encryption key. It also enables countering piracy and security issues. In addition, the user can access the registered user management agent and use the registered terminal information to reduce the amount of work to be operated, and the user agent and the service agent can be connected to each management agent at the time of service negotiation, so the interface is simple and compatible. There is an easy effect.

What has been described above is only one embodiment for implementing a system-to-system negotiation method for a multimedia service according to the present invention, and the present invention is not limited to the above-described embodiment, but is claimed in the following claims. Without departing from the gist of the invention, those skilled in the art to which the invention belongs, the technical spirit of the present invention to the extent that various modifications can be made.

Claims (8)

In the system-to-system negotiation method for a multimedia service that can separate and manage a plurality of user agents and a plurality of service agents by a user management agent and a service management agent, respectively, (a) each of the user agent and each service agent registers a user agent that is not registered with the user management agent with the user management agent and the service management agent, respectively; and is not registered with the service management agent. Performing a service information registration process of registering service information with respect to a user agent; (b) if any user agent accesses the user management agent to request a service, the user management agent forwards a service request to the service management agent; (c) the service management agent analyzing the delivered service request information to search for a service agent capable of providing a service, and receiving a service availability notification from the service agent; (d) When a service availability notification is received in step (C), the service management agent transmits a video suitable to the multimedia stream according to the service agent, the encryption key and the terminal information of the user agent based on the set service information. And transmitting a service providing profile including audio information and communication information, and transmitting a service receiving profile including a service agent IP, a service ID, and an encryption key to the corresponding user agent through the user management agent. And (e) the user agent directly connecting with the service agent by using information of a service reception profile, and performing multimedia data transmission and reception. How to negotiate between systems for multimedia services. delete delete The method of claim 1, When the multimedia service is started in step (e), the user agent transmits service start notification information to the user management agent and the service management agent so that service start information registration and service provision information registration are performed, and the multimedia service ends. The user agent further comprises the step of transmitting service termination notification information to the user management agent and the service management agent to register the service termination information. How to negotiate between systems for multimedia services. The method of claim 1, In the step (a), the user information registration process by the user agent to the user management agent, Confirming whether the user registration process corresponds to registering user information; Modifying or creating a profile file by checking whether it corresponds to a registration process of terminal information; Creating or modifying information of the terminal according to the profile file or the inputted information; And, And updating the user information database when the creation or modification is completed in the above step. How to negotiate between systems for multimedia services. The method of claim 5, The terminal information includes video information such as screen size and resolution necessary for processing a multimedia service, audio information such as sample rate and channel, and communication network information such as support compression codec information, access network and communication speed. By How to negotiate between systems for multimedia services. The method of claim 1, In the step (a), the service information registration process by the service agent to the service management agent, Confirming whether it is an initial registration to register user information; Making a new service information or a modification of service information for a registered user; And, Updating the service information database when the input is completed; How to negotiate between systems for multimedia services. The method of claim 7, wherein The service information includes video information such as image size and resolution necessary for processing a multimedia service, audio information such as sample rate and channel, and information such as compression codec and quality of service (QoS). to How to negotiate between systems for multimedia services.

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