JP2002099471A - Network terminal device and network system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide multi-media service to enable to conduct service switching or the like between a plurality of terminal devices in regard to a network terminal device and a network system having a communication function part. SOLUTION: The network terminal device having the communication function part is provided with a service definition part 4 for setting service definition showing a component corresponding to a multi-media, a component control part 2 for controlling the start and deletion of the components 9-1, 9-2,... corresponding to the multi-media, a QoS control part 6 for performing QoS conversation in the terminal device and between the terminal devices, and a service control part 5 and a terminal display part 3 for analyzing service definition in accordance with service request to extract a service name, determining QoS classification and priority in the component corresponding to the service name and determining QoS on the basis of the QoS conversation result by the QoS control part 6 to perform service start.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention includes a network terminal capable of utilizing a multimedia service in response to a user's request via a network such as a local area network or a home network, and the network terminal. The present invention relates to a network system in which a plurality of terminal devices are connected to each other to provide a multimedia service according to a required service quality of a user.

[0002]

2. Description of the Related Art There has been proposed a home network in which all electric devices including a television receiver and a printer in a home and a personal computer (personal computer) are mutually connected like a local area network. In such a network, a configuration in which the networks are interconnected by a communication cable is generally used. However, there is a problem that the work of laying and connecting the communication cable is complicated, and there is a problem that the installation place of the electric equipment or the like is restricted. Therefore, in order to make it possible to omit a communication cable, a configuration is known in which a distribution line for supplying operating power of each electric device is used also as a communication cable, and the transmission and reception are performed by modulating the frequency at a frequency different from that of an AC power supply. In this case, an AC 100V or 200V distribution line,
A connection with a signal circuit of about several volts is required, and there are problems of large noise and problems of safety such as withstand voltage.

[0003] It has also been considered to construct a network so as to communicate with each other using radio waves or infrared rays. However, when all the electric devices are connected wirelessly, there is a need for a means for ensuring communication quality such as prevention of interference and prevention of interference due to the problem of cost increase and shielding. Various configurations of the mobile terminal device operated by the user are already known, but currently, the mobile terminal device has a configuration in which limited resources can be used, and cannot respond to various service requests. is there.

A distributed system Jini (Java intellige) constructed based on Java, a programming language applicable to home networks and the like.
ntnetwork infrastructure)
Is known, and plug and play becomes possible via a network.

Various network systems for providing multimedia communication services have been proposed. For example, in order to improve the complexity of different encoding schemes for multimedia and multiplexing schemes for connections, by analyzing user service requests, the correspondence between users participating in communication and media, and Service control means for determining a media connection relationship; media control means for determining a correspondence relationship between a media connection between terminal devices and a connection for accommodating the media connection; and a connection associated by the media control means. A multimedia communication service control apparatus has been proposed which includes a connection control means for performing control of the multimedia communication service and performs mutual conversion by a conversion apparatus when the media coding method is different (for example, JP-A-9-252302). Gazette).

[0006] In addition, user requests in multimedia services, types of terminal devices, network configurations, and the like vary widely. For example, the amount of available resources may differ between a desktop terminal device and a portable terminal device. General. Quality of service (QoS; Q) required for each user
uality of Service) is also different. Therefore, adaptive QoS control means for determining and controlling the QoS based on the user's request and the resources of the terminal device and the network has been proposed.

[0007] QoS in the adaptive QoS control means
The parameter set includes multiple Qs corresponding to the media type.
With an oS parameter, for example, in the case of a moving image,
The information includes a compression method, a frame rate, an image size, the number of display colors, a quantization level, and the like. In addition, each QoS parameter set has a utility value of 1 to 100 indicating the degree of user request, and the larger the numerical value, the higher the degree of user request. It also has a priority for each application, stream, and QoS parameter.

In the case of a communication application, it is necessary to negotiate QoS between a terminal device and a terminal device of a communication partner. In the terminal device, the QoS corresponding to each stream is determined under the resource constraints using the utility value and the priority of the QoS parameter set. Also, if the reception quality of the determined stream exceeds the original transmission quality as a result of QoS negotiation in the terminal device,
QoS negotiation with the transmitting terminal of the stream is required, and the QoS is set to a state close to the QoS requested by the user.
Is selected. QoS between other terminal devices
Negotiations may be required.

As described above, by using the direct or indirect coordination function of the multi-agent function to negotiate the QoS so as to satisfy the user's request to the maximum, the QoS control is adaptively performed. In multimedia communication between terminal devices, efficient QoS control is enabled (for example, “Transactions of the Institute of Electronics, Information and Communication Engineers, B Vol. J82-B No. 5, pp. 702 to 710”. May 1999 ").

[0010]

The above-described conventional home network enables communication between users in an arbitrary room in a home, cooperative operation with an intercom, remote control of various electric devices, and the like. However, they did not have enough functions to provide multimedia services.

In order to provide a multimedia service in response to various demands of a user, it is necessary to be able to provide a multimedia service in response to a user request even when the user moves. For example, when a user is communicating while displaying a moving image on a display unit of a small display screen of a portable terminal device, a terminal device such as a television receiver having a display unit of a large display screen near the user's movement. When there is a service, a service that switches to continuously display a moving image on a terminal device having a display unit with a large display screen can be considered at the request of the user.

However, the above-mentioned conventional multimedia communication service control device, for example, changes in accordance with the movement of the user.
The service control taking into account the QoS corresponding to the user's request and the resource situation and the service transfer control between a plurality of terminal devices are not taken into consideration. Also the adaptive Qo mentioned above
The conventional example of performing S control can respond to a user's request by negotiating and determining QoS, but control of service switching between a plurality of terminal devices according to the movement of the user is considered. Not something. The present invention
An object of the present invention is to determine QoS adaptively in response to a user request and resources of a terminal device or a network, and to enable service switching between a plurality of terminal devices in accordance with a user request accompanying a user movement.

[0013]

Referring to FIG. 1, a network terminal device according to the present invention includes a service definition section 4 for setting a service definition indicating a component corresponding to multimedia, and a component 9 corresponding to multimedia. -1, 9-2,..., And a Q in the terminal device and between the terminal devices.
a QoS control unit 6 that performs QoS negotiations and makes a QoS decision;
The service definition is analyzed in accordance with a service request, a service name is extracted, a QoS type and a priority are determined for a component corresponding to the service name, and the QoS is determined.
The service control unit 5 determines the QoS based on the QoS negotiation result by the control unit 6 and activates the service.
When the service control unit 6 selects the user name and the component displayed on the terminal display unit 3, the service control unit 6 sends a component deletion request to another terminal device using the component, to the other terminal device. A configuration for notifying the service control unit is provided.

Further, the network system of the present invention comprises a service definition unit for setting a service definition indicating a multimedia-compatible component, a component control unit for controlling activation and deletion of the multimedia-compatible component, a terminal device and a terminal. A QoS control unit that performs QoS negotiation between devices to determine a QoS, analyzes the service definition according to a service request, extracts a service name, determines a QoS type and a priority for a component corresponding to the service name, QoS by the QoS control unit
Connecting a network terminal device having a service control unit for determining a QoS based on a result of the negotiation and activating a service, a terminal display unit, and a terminal device communicable with the network terminal device to a network, One of the terminal devices has at least a portable configuration.

[0015]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.
1 is a main control unit, 2 is a component control unit, 3 is a terminal display unit, 4 and 14 are service definition units, 5 and 15 are service control units, 6 and 16 are QoS control units, 7-1, 7-2,・
.. Indicate various applications (APL), 8 indicates a communication library, and 9-1, 9-2,... The input operation unit, the communication function unit, and the like are not shown, and the network terminal devices 10 and 20 have equivalent functions. However, the network terminal device 20 is mainly used for simplification. Only the control unit 11 is illustrated.

A network system is configured by connecting the network terminal devices 10 and 20 (hereinafter abbreviated as terminal devices) by a wired or wireless connection via a communication function unit (not shown). Also, the main control units 1, 1 of the terminal devices 10, 20
1 is a service definition unit 4, 14 and a service control unit 5, 1
5 and the QoS control units 6 and 16, perform notification of users and components between the service control units 5 and 15 of different network terminal devices 10 and 20, and perform QoS control units 6 and 6.
16 is for QoS negotiation in the terminal device and QoS between the terminal devices.
It has a function to perform S negotiation.

The main control units 1 and 11 and the component control unit 2 can be realized by processing functions of a processor, and various applications 7-1, 7-2,
..., communication library 8, various components 9-
, 9-2,... Can be stored in a memory as a program. The QoS can be set as a QoS parameter set in the above-described adaptive QoS control means.

The components 9-1, 9-2,... Corresponding to multimedia are selected by various applications 7-1, 7-2,. The component control unit 2 controls the activation of each of the components 9-1, 9-2,... Such as an audio component and an image component.

For example, if the terminal device 10 is a portable terminal device carried by a user, the terminal device 10 can be wirelessly connected to another terminal device 20. The wireless communication in that case can apply various known means, for example, a PHS (Personal Handyphone) in the 1.9 GHz band.
System) can be used. Alternatively, Bluetooth using a modulation scheme such as frequency hopping, which has been standardized in the 2.4 GHz band, can also be used. The terminal device 10 may be a mobile phone carried by a user. In this case, the communication function unit can add a short-distance configuration dedicated to a network. The terminal display unit 3 corresponds to a display unit of a mobile phone. Functions of the main control unit 1 and the component control unit 2 are realized by processing functions of a microprocessor of the mobile phone. , ..., components 9-1, 9-2, ..., etc. can be stored in the memory of the mobile phone.

A network system configured by connecting terminal devices including the terminal devices 10 and 20 described above is, for example,
The configuration shown in FIG. 2 can be used. In FIG.
Reference numerals 1 and 22 are users, 23 is a portable terminal device, 24 to 27 are fixed terminal devices, 28 is a mobile terminal device such as a laptop, and each of the terminal devices 23 to 28 is mutually connected including wired or wireless. Connected to form a network system,
The case where the terminal device 26 provides a directory service is shown. The terminal devices 23 to 25 have at least the functions of the main control units 1 and 11 (see FIG. 1).

For example, the portable terminal device 23 and the terminal device 25
Is a device having a function of wirelessly communicating with each other,
25 has a function of performing wired or wireless communication, and the user 21 carries the portable terminal device 23 and
When the user 21 moves near the terminal device 24 in a state where the audio and the moving image are received and the moving image is displayed on the terminal display unit of the small display screen of the portable terminal device 23, the moving image When a user request to be displayed by the terminal device 24 having a terminal display unit having a large display screen is issued, the directory service notifies all terminal devices of the user name and the component, and the user name and component are also displayed on the display screen of the terminal device 24. So, by selecting it,
The terminal device 24 issues a request to delete, for example, an image component used in the mobile terminal device 23, and the terminal device 2
By activating the image component 4, the moving image can be switched and displayed on the terminal device 24 having a large display screen.

When the user 21 is listening to music via the terminal device 25 using the portable terminal device 23, for example,
When a request to continuously listen to music using the terminal device 24 is input from the portable terminal device 23 when the terminal device 24 moves near the terminal device 24 having good reproduction sound quality, the terminal device 24 and the terminal device 25 , The music can be reproduced by switching from the portable terminal device 23 to the terminal device 24.

FIG. 3 is an explanatory diagram of the service control processing according to the embodiment of the present invention, and shows a schematic processing in the case of performing the service switching as described above.
Perform 1). This service registration is performed for the directory service by the processing of the service control unit 5 of the main control unit 1 (see FIG. 1). Next, a service definition analysis (A2), a service determination (A3), a service activation (A4), and a service switching (A5) are sequentially performed to switch a service requested by the user. In the process of the switching process, negotiation and determination of QoS within the terminal device and between the terminal devices are performed.

The processing of the service registration (A1) and the service definition analysis (A2) is performed by a service control unit including the functions of a service registration unit 31 and a service definition analysis unit 32, as shown in FIG. 5 (see FIG. 1), the service is registered in the directory service 33 (see the terminal device 26 in FIG. 2), and the service definition set in advance by the user is transmitted from the service definition analyzing unit 32 to the service definition unit 4.
The service definition analysis unit 32 analyzes the obtained service definition contents.

A service is composed of a plurality of multimedia components. As described above, the components include an audio component and an image component. The service definition indicates components necessary for the service, and the component definition is performed as a user request for each component. This component definition has priority and QoS type required for QoS control as attributes.
The user request is reflected by setting an attribute value for the component. In addition, the service definition is XML (eX
Tensible Markup Language)
Thus, for example, it can be created as shown in FIG. That is, the service name, the priority corresponding to the component name belonging to the service name, and the QoS are included.

The processing of service determination (A3) and service activation (A4) in FIG. 3 is performed in accordance with the explanatory diagram of the service activation processing shown in FIG. 5, and in FIG.
The same reference numerals denote the same parts, 51 denotes a service display processing unit, 52 denotes a service search processing unit, 53 denotes a component determination processing unit, 54 denotes an attribute determination processing unit (QoS, priority), 55 denotes a QoS determination processing unit, Reference numeral 56 denotes a component activation request processing unit, 57 denotes a service activation request processing unit, and the terminal device 20 illustrates only the service control unit 15 in the main control unit 11. Also, the terminal display unit 3 shown separated vertically shows a case where a service display processing unit 51 displays a service name and the like, and then a service activation request processing unit 57 displays user and component notifications. Actually, they are displayed on the same terminal display unit 3.

As described above, the service definition analyzing unit 32 (see FIG. 4) of the service control unit 5 analyzes the service definition, extracts the service name, and displays the terminal display unit 3 so that the user can select the service. Service display processing unit 51
Display by the function of. The services in this case include, for example, a user monitoring service in which a monitoring range is imaged by a television camera and displayed on a terminal display unit, an intercom service in cooperation with an intercom at the entrance, and voice and image communication with other users. There are communication services.

According to the contents displayed on the terminal display unit,
When a service request is made by using a selection in a touch panel format, a selection by pressing a button in a button display format, a selection by pressing a key on a keyboard, or the like, the service search processing unit 52 of the service control unit 5 searches for a corresponding service name from the registered service name. Search and analyze the service definition to be performed. Then, the component determination processing unit 53 determines which component to activate for the service, and the attribute determination processing unit 54 identifies the QoS type and priority for each component, and the QoS determination processing unit 5
5 negotiates with the QoS control unit 6 to determine the QoS.

Using the determined QoS and the component to be activated, the component activation request processing unit 56 requests the component control unit 2 to activate the component, and the service activation request processing unit 57 sends the terminal display unit 3
The user and the component are displayed, and the service control unit 15 of the terminal device 20 is notified of the user and the component. In this case, the directory service notifies terminal devices, components, and users constituting the network system, and the service control unit of each terminal device displays the information on the terminal display unit.

The process of service switching (A5) in FIG. 3 is executed by the functional part shown in FIG.
When the service is switched to another terminal device 20, the terminal display unit 13 of the terminal device 20 is activated by the service activation (A4).
Select the user and component displayed in. According to this selection result, the service control unit 15 of the terminal device 20
Sends a component deletion request to the service control unit 5 of the terminal device 10 and instructs the component control unit 12 to activate the selected component.

The service control unit 5 of the terminal device 10 requests the component control unit 2 to delete the component in response to the component deletion request from the terminal device 20, and the component control unit 2 performs the service reconfiguration accompanying the component deletion. A request is made to the service control unit 5, and the service control unit 5
Coordinate with the oS control unit 6. Thereby, the service switching is completed.

FIGS. 7 and 8 are sequence explanatory diagrams of the embodiment of the present invention, and show terminal devices 10 and 20 (see FIG. 1).
3 and the service control process of FIG. 3. The user carries the terminal device 10 as described above, and requests a service registration from the service control unit 5 of the terminal device 10 to the directory service. Service definition part 4
The service definition request is sent from the service definition unit 4 to the service control unit 6 in response to the request, and the service definition analysis unit of the service control unit 5 performs the service definition analysis. The service of the analysis result is displayed, and the displayed service is selected in a touch panel format or a key press format.

The service control unit 5 searches for a service according to the service selection input, and determines QoS and priority. Then, QoS negotiation is performed with the QoS control unit 6. That is, QoS negotiation in the terminal device is performed, and then the service control unit 5 issues a component activation request to the component control unit 2. The component control unit 2 displays the service activation on the terminal display unit 3 and notifies the service control unit 5 of the completion of the component activation.

The service control unit 5 requests the directory service to acquire a registered terminal, and upon receiving a registered terminal notification from the directory service, the terminal display unit 3.
Next, the user and the component of the registered terminal notification are displayed on the terminal display unit 3, and the service control unit 15 of the terminal device 20 is notified of the user and the component. The terminal device 20 displays the user and the component on the terminal display unit from the service control unit 15 and performs component selection, so that the user and the component are selected by the service control unit 15 of the terminal device 20 and the service control unit 5 of the terminal device 10. Request to delete the component.

The service control unit 5 requests the component control unit 2 to delete the component, determines the QoS and the priority, and gives the QoS control unit 6 the QoS in the terminal device.
S negotiation is performed, the determined QoS is notified to the service control unit 5, and the service control unit 5
An oS change request is made. The component control unit 2 displays the service activation on the terminal display unit 3.

The directory service notifies each terminal device of the terminal devices connected to the network, the user, and the type of service being activated at each service request of the user or at the time of starting up the network system. It can be stored in the main control unit. In this case, by associating a plurality of users with the mobile terminal device being used, selection at the time of service switching becomes easy. Also, at the time of service switching, QoS negotiation between terminal devices may be required together with QoS negotiation within the terminal device, and when QoS negotiation with another terminal device is required, determination of QoS according to priority is performed. Will be done.

FIG. 9 is a schematic explanatory diagram of a home network according to an embodiment of the present invention.
Is a living room, 73 is a baby room, 74 is a garden, 7
Reference numeral 5 denotes an entrance, reference numerals 76 to 85 denote terminal devices, and each terminal device 7
6 to 85 each have a communication function and constitute a network indicated by a dotted line. In this case, the terminal device 76 is a portable terminal device that can be carried by the user, the terminal devices 77 and 80 are mobile terminal devices such as laptops, and the terminal devices 78 and 81 are terminals having a large-screen terminal display unit such as a television receiver. Device 79, a terminal device such as a facsimile or a printer, 8
2 is a terminal device such as an audio device having a high-quality speaker, terminal devices 84 and 86 are terminal devices such as fixed television cameras, and terminal devices 83 and 85 are angle-of-view adjustment control functions, images, and sounds of the terminal devices 84 and 86. Is a terminal device having a transmission function of (1).

For example, the terminal device 76 in the garden 74 is a portable terminal device carried by the user, the baby room 73 is imaged by the terminal device 84 of a television camera, and the portable terminal is transmitted through the terminal device 83 as audio data and moving image data. By transmitting the video to the device 76 wirelessly, a moving image is displayed on the small terminal display unit, and the sound is reproduced by the speaker, so that the state of the baby room 73 can be monitored in the garden 74.

In such a state, the user enters the living room 72 and requests the terminal device 78 having a large display screen of the living room 72 to display a moving image by the terminal device 84 of the television camera. Sometimes, the moving image display component of the terminal device 78 is activated by the above-described processing, and the moving image display component of the band terminal device 76 is deleted.
Can be switched to the terminal device 78.

The terminal device 86 of the television camera at the entrance 75
And the intercom function including the terminal device 85 and the portable terminal device 76 of the user in the garden 74.
6 to the portable terminal device 76,
When the user moves to the living room 72 during a conversation with a customer at the entrance 75, the user can switch to the terminal device 78 to continue the conversation.

Also, the movement of the user carrying the portable terminal device is detected. For example, when a moving image is being received and displayed, when moving near a terminal device having a large-screen terminal display unit,
By automatically switching the service, it is possible to control the moving image to be displayed on the terminal display unit of the terminal device. In other words, it is possible to fully automate the service switching, but by the service request according to the user's judgment,
Performing processing such as service switching is safe for a network system.

(Supplementary Note 1) In a network terminal device having a communication function unit for mutually communicating via a network, a service definition unit in which a service definition indicating a multimedia-compatible component is set, and a multimedia definition-compatible component A component control unit that controls activation and deletion, a QoS control unit that performs QoS negotiation within the terminal device and between the terminal devices to determine a QoS, analyzes the service definition according to a service request, extracts a service name, A network terminal comprising: a service control unit that determines a QoS type and a priority for a component corresponding to a service name, determines a QoS based on a QoS negotiation result by the QoS control unit, and activates a service. apparatus. (Supplementary Note 2) The service control unit, when selecting the user name and the component displayed on the terminal display unit, sends a component deletion request to another terminal device using the component, to the other terminal device. 2. The network terminal device according to claim 1, further comprising a configuration for notifying a service control unit of the device. (Supplementary Note 3) The communication function unit is configured to perform wireless communication,
3. The network terminal device according to claim 1, further comprising a terminal display unit for displaying the received image and the selection control information, and having a portable configuration.

(Supplementary Note 4) A service definition unit in which a service definition indicating a multimedia-compatible component is set, a component control unit that controls activation and deletion of the multimedia-compatible component, and a QoS within the terminal device and between the terminal devices QoS to negotiate and make QoS decisions
A control unit, analyzes the service definition according to a service request, extracts a service name, determines a QoS type and a priority for a component corresponding to the service name,
A network control unit including a service control unit that determines a QoS based on a QoS negotiation result by the QoS control unit and activates a service, a network terminal device including a terminal display unit, and a terminal device communicable with the network terminal device. A network system, wherein at least one of the network terminal devices is configured to be portable. (Supplementary Note 5) In a multimedia service method for providing a multimedia service by connecting a plurality of terminal devices to a network, when a service is switched from one terminal device to another terminal device, a directory service is connected to the network. Notifying the user name and component to all connected terminal devices and displaying them on the terminal display unit, selecting the component displayed on the terminal display unit of the other terminal device, activating the selected component,
A multimedia service method comprising: requesting the one terminal device to delete the selected component; and performing a QoS change process by service reconfiguration in the one terminal device.

[0044]

As described above, according to the present invention, the service definition unit 4 in which the service definition indicating the component corresponding to the multimedia is set, and the components 9-1, 9-2,. A component control unit 2 for controlling activation and deletion, a QoS control unit 6 for performing QoS negotiations within the terminal device and between the terminal devices and determining a QoS, analyzing a service definition according to a service request, and extracting a service name, A service control unit for determining a QoS type and a priority for a component corresponding to the service name, determining a QoS based on a QoS negotiation result by the QoS control unit, and activating a service; and a service control unit. 6 uses this component when the user name and the component displayed on the terminal display unit 3 are selected. It is provided with a configuration for notifying a service control unit of another terminal device of a component deletion request to another terminal device.A network is formed among a plurality of terminal devices including a mobile terminal device, and a user's Multimedia communication according to the request can be enabled.
Therefore, when a user carries a portable terminal device, there is an advantage that a desired service can be received with QoS according to network resources even when service switching is performed at an arbitrary position.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is a schematic explanatory diagram of a network system according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a service control process according to the embodiment of this invention.

FIG. 4 is an explanatory diagram of a service definition according to the embodiment of this invention.

FIG. 5 is an explanatory diagram of service activation processing by component activation according to the embodiment of this invention.

FIG. 6 is an explanatory diagram of a component deletion process according to the embodiment of this invention.

FIG. 7 is a sequence explanatory diagram of the embodiment of the present invention.

FIG. 8 is a sequence explanatory diagram of the embodiment of the present invention.

FIG. 9 is a schematic explanatory diagram of a home network according to an embodiment of the present invention.

[Explanation of symbols]

 1,11 Main control unit 2 Component control unit 3 Terminal display unit 4,14 Service definition unit 5,15 Service control unit 6,16 QoS control unit 7-1,7-2 Application 8 Communication library 9-1,9-2 Component 10, 20 Terminal device

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Tomonori Nakanishi 2-53, Shiromi, Chuo-ku, Osaka-shi, Osaka Inside Fujitsu Kansai Chubu Nettech Co., Ltd. (72) Inventor Hiroshi Enoki, Chuo-ku, Osaka-shi, Osaka No. 2-53, 2-3 Fujitsu Kansai Chubu Net-Tech Co., Ltd. (72) Inventor Masakatsu Kosuge 2-2-2 Kodai, Seika-cho, Soraku-gun, Kyoto A.T. Inventor Kazuo Hasuike 2-2-2 Kodai, Seika-cho, Soraku-gun, Kyoto F-term (reference) 5A049 CC48 DD01 EE07 FF03 FF04 FF06 GG04 GG07 5B089 GA21 GB03 JA33 JB06 KA04 KA18 KB10 KC59 LB11 5C025 BA25 BA30 DA08 DA10 5C064 BA07 BC10 BC16 BC20 5K033 AA09 BA01 BA02 CA06 CB04 DA13 DA14 DB14 DB16 DB18 E A03

Claims (3)

[Claims] In a network terminal device having a communication function unit for communicating with each other via a network, a service definition unit in which a service definition indicating a multimedia-compatible component is set; QoS control by negotiating QoS within the terminal device and between the terminal devices and the component control unit that controls the deletion
A QoS control unit for making a decision, analyzing the service definition according to a service request, extracting a service name, determining a QoS type and a priority for a component corresponding to the service name,
A network terminal device comprising: a service control unit that determines a QoS based on a QoS negotiation result by a control unit and activates a service. 2. The service control unit, when selecting a user name and a component displayed on a terminal display unit,
The network terminal device according to claim 1, further comprising a configuration for notifying a service control unit of the other terminal device of a component deletion request to another terminal device using the component. 3. A service definition unit that sets a service definition indicating a multimedia-compatible component, a component control unit that controls activation and deletion of the multimedia-compatible component, and negotiates QoS within the terminal device and between the terminal devices. A QoS control unit that performs QoS determination by performing
The service definition is analyzed in accordance with a service request, a service name is extracted, a QoS type and a priority are determined for a component corresponding to the service name, and the QoS is determined.
A service control unit that determines a QoS based on a QoS negotiation result by a control unit and activates a service, a network terminal device including a terminal display unit, and a terminal device communicable with the network terminal device are connected to a network. A network system wherein at least one of the network terminal devices is configured to be portable.