WO2001067255A1

WO2001067255A1 - Content supply method adapted to servicing apparatus

Info

Publication number: WO2001067255A1
Application number: PCT/JP2001/001686
Authority: WO
Inventors: Kazuhiro Okanoue; Masahiro Ono; Koichi Ebata; Shuichi Shibata; Kenji Takeda; Masahiko Tsukue
Original assignee: Nec Corporation
Priority date: 2000-03-06
Filing date: 2001-03-05
Publication date: 2001-09-13
Also published as: AU2001236088A1; JP2001251341A

Abstract

A content supply method adapted to a servicing apparatus in a data communication system, for realizing a client capable of providing one or more services and having a structure and ability suited to each service. A client for providing one or more services notifies a gateway of all or part of servicing ability information as a profile. The servicing ability information is information about the client ability adapted to the service or each of the services. The gateway processes the content sent from a server to the client according to the profile so as to provide a service.

Description

TECHNICAL FIELD The present invention relates to a content supply method for realizing a client capable of processing one or more services with a configuration and capability suitable for each service in a data communication system. The present invention relates to a client, a gateway, a server, a service processing device, a relay device, and a recording medium on which a communication program is recorded. 2. Description of the Related Art Conventionally, in overnight communication over a line such as a wireless line that does not have a very high line quality and information transmission speed, the server notifies a server of its capabilities and device configuration as a profile, and the server There are known technologies that provide services in a form suitable for client profiles (for example, Wireless Application Protocol Architecture Specification WAP Architecture Version 30-Apr-1998).

As shown in FIG. 1, the communication model in the WAP (Wireless Application Protocol) includes a client 600 that processes a service, a server 603 that provides a service, and a gateway 601 that relays communication between the client and the server.

The client 600 and the gateway 601 are connected by a wireless communication line 607, and the gateway 601 and the server 603 are connected via an external network 602.

Further, as shown in FIG. 2, a content holding gateway 606 having both a gateway function 604 and a server function 605 is also assumed.

In addition, the client profile shown in the Wireless Application Group User Agent Profile Specification, WAG UAPROF Proposed Version 0.6, 22- June-1 999 Figure 3 shows an example of an aisle. In this example, the client has a display that is 2 inches large, has a resolution of 50 x 40, can display 10 characters x 5 lines, supports Japanese processing, and has an MPEG decoder as a video decoder.

An example in which a client having such a profile receives a service will be described based on the model shown in FIG. 1 and using the sequence shown in FIGS. Fig. 4 shows an example of a sequence in the case of receiving service at the initiative of a client (client-initiated service). The client notifies the gateway of the profile. Also, the service requested by the client is notified to the server via the gateway. The server sends the content corresponding to the required service to the gateway. Upon receiving the content, the gateway provides the service by transforming it based on the profile of the client that requested the service so that the client can process it appropriately.

FIG. 5 is an example of a server-driven sequence. The client notifies the gateway of the profile in advance. The server sends the content of the service that it wants to provide to the client to the gateway. The gateway refers to the client's profile, converts the content sent from the server so that the client can process it appropriately, and provides the service.

In the above sequence example, by using the model in FIG. 2, communication between the gateway and the server can be realized as internal processing of the gateway with content. DISCLOSURE OF THE INVENTION As a configuration of a client, a configuration having a plurality of service processing devices is considered. For example, as shown in FIG. 6, for example, as shown in FIG. 6, a portable computer 501-1-1 for processing an e-mail service, a high-fidelity video playback device 501-1-2 for processing a video delivery service, A client 500 composed of a high-fidelity music playback device 501-3 for processing a music delivery service is conceivable. The portable computer 501-1-1, the high-fidelity video playback device 501-1-2, and the high-fidelity music playback device 501 are examples of service processing devices. When such a client is used, when a service is led by the client, the client that can process appropriately can notify various services by notifying the profile of the service processing device corresponding to the service requested by the client. It can be processed quickly.

However, in the case of the server-led type, the conventional profile notification method does not notify the gateway of the profile of each service processed by the client. Therefore, the client does not always process the provided service properly. There is a problem that can not be done.

Therefore, an object of the present invention is to provide a content supply method or the like in which a client is appropriately provided with a service.

In the content supply method according to the present invention, a client that processes one or a plurality of service groups may transmit information including the capability of the client corresponding to each of the one or a plurality of service groups to each of the one or a plurality of service groups. The server notifies the server of all or a part of the service processing capability information for each of the one or more service groups as a profile as service processing capability information, and the server transmits transmission data based on the profile. And transfer the data to the client.

In the present invention, each service to be processed as a client profile and the ability to process the service are paired, and a part or all of the set is notified to the server as a profile.

For this reason, even in server-driven service provision, it is possible to grasp the client's ability for the service provided by the server, convert it appropriately, and provide the service to the client.

Also, according to the congestion situation of the communication line between the gateway and the client, the contents of the service provided to the client are appropriately converted within the range that the client can process. Thereby, the utilization efficiency of the communication line can be improved. Furthermore, the client according to the present invention may be configured to include a relay unit that collects the service processing capabilities of the devices that process each service and notifies the result as a profile of the entire client. With this configuration, it is not necessary for each device that processes each service to notify the server of the profile, and the amount of communication can be reduced. In the case of a data communication system in which the client must register with the server in order to receive services, the client user registers only the relay means, and adds or reduces equipment that processes services. It is possible to flexibly change the client by using. -Further, according to the present invention, in a client having different service processing capabilities depending on services and capable of processing one or a plurality of services, each provided service can be processed with an appropriate configuration and capability. Becomes possible. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overview of a communication model.

Figure 2 shows an overview of the communication model.

FIG. 3 is an example of a conventional profile.

FIG. 4 is an example of a sequence of a conventional client-driven service provision. FIG. 5 is an example of a sequence of a conventional server-driven service provision.

Fig. 6 shows a configuration example of the client.

FIG. 7 is a system diagram showing an embodiment of a client of the present invention.

FIG. 8 is a system diagram showing an embodiment of a client using wireless transmission.

FIG. 9 is an example of a service processing capability notification message format transferred from the service processing device to the relay device.

FIG. 10 is a state transition diagram of the service processing devices 101_1 to 101-3 according to the present invention.

FIG. 11 is a system diagram of the relay device 102 of the present invention.

FIG. 12 is an example of the contents stored in the memory 106.

FIG. 13 is a system diagram showing a configuration example of the gateway of the present invention.

FIG. 14 is a configuration example of a profile notification message.

FIG. 15 shows an example of the format of the profile stored in the memory 406. FIG. 16 is an example of a transmission format of a service request message transmitted from a client.

FIG. 17 shows an example of a format for transmitting a content providing a service transmitted from a gateway to a client.

FIG. 18 is an example of a format for transmitting the content for providing the service transmitted from the server to the gateway.

Fig. 19 is an example of a profile when there are multiple service processing devices that process the same service.

FIG. 20 is a system diagram showing a configuration example of the server of the present invention.

FIG. 21 is a sequence example of a data communication system using a gateway, a server, and a client according to the present invention.

FIG. 22 is a system diagram of a relay device having service processing capability.

FIG. 23 is a system diagram showing a configuration example of the gateway of the present invention.

FIG. 24 is a system diagram showing a configuration example of the gateway of the present invention.

FIG. 25 is a system diagram showing a configuration example of the server of the present invention.

FIG. 26 is a sequence example when the present invention is applied to the communication model of FIG. ... FIG. 27 is a system diagram showing a configuration example of the content holding gateway of the present invention.

FIG. 28 is a sequence example when the present invention is applied to the communication model of FIG.

FIG. 29 is a system diagram showing a configuration example of the content holding gateway of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION An embodiment in which the present invention is applied to the communication model shown in FIG. 1 will be described with reference to FIG. In FIG. 7, 100 is a client, 101-1 is a portable computer, 101-2 is a high-fidelity video playback device, and 101-3 is a high-fidelity music. Playback device, 102 is a relay device, 103 is a gateway, 110-1 is the service processing capability of the portable computer 101-1, 110-2 is the service processing capability of the high-fidelity video playback device 101-2, 110- 3 is the service processing capacity of the high-fidelity music playback device 101-3, 111 is the profile of the client 100, 120 is the bus-type network, 121 is the communication line, 602 is the external network, and 603 is the server.

The client 100 includes, as service processing devices, an electronic mail service, a portable computer 101-1, which processes web services, a high-fidelity video playback device 101-2, which processes video delivery services, and a music delivery service. It has a high-fidelity music playback device 101-3 for processing. Further, the client 100 is connected to the service processing equipment groups 101-1 to 101-3 via the bus-type network 120, and is also connected to the gateway 103 via the communication line 121. It also has device 102.

As shown in FIG. 8, the relay device 102, instead of the bus-type network 120 and the communication line 121, transmits a service processing device group 101_ via a broadcast-type wireless network 130 and a wireless communication line 131. 1 to 101_3, gateway 103 can be connected respectively. The portable computer 101-1, high-fidelity video playback device 101-2, and high-fidelity music playback device 101_3 have the service processing capacity of 110-1, 110-2, and 110-3, respectively. Have. The relay device 102 aggregates the service processing capacities 110-1, 110-2, and 110-3, and notifies the gateway 103 as the profile 111 of the client 100. The operations of the portable computer 101_1, the high-fidelity video reproduction device 101-2, and the high-fidelity music reproduction device 101-3, which are a group of service processing devices, can be realized by, for example, a state transition diagram shown in FIG.

When the power is turned on, a service processing capability notification message is notified to the relay device 102, and at the same time, the timer is activated to transit to a service processing capability notification acknowledgment waiting state. The service processing capability notification message can be configured, for example, as shown in FIG. In Fig. 9, 800 is the header, 801 is the data overnight, 800-1 is the destination field, 800-3 is the source field, and 800-7 can be processed. This is a service identifier field.

The service processing device inserts the processing capability for the service indicated by the processable service identifier field 800-7 into the data section 8001. A service processing device that can process a plurality of services notifies this message for each service that can be provided.

In the service processing capability notification acknowledgment waiting state, the service processing capability notification message is retransmitted each time the timer 1 times out. '

Further, when the service processing capability notification acknowledgment message is received from the relay device 102, the state transits to the service processing start waiting state. In this state, when a service processing start event occurs, the state transits to the service processing state. Also, if a service processing capacity change event occurs in this state, a service processing capacity notification message is transmitted, the timer 11 is started, and a transition is made to the service processing capacity notification acknowledgment waiting state.

In the service processing state, when a service processing end event occurs, the state transits to the service processing start wait state. If the power is cut off during the service processing notification acknowledgment waiting, service processing start waiting, or service processing, the state changes to the idle state. In addition, in order to detect a power failure of the relay device 102, the key from the relay device 102 is set in each state of waiting for service processing capacity notification function, waiting for service processing activation, and service processing. Receive one poor live message. When a keepalive message is received, timer 12 is reset. When the timer 12 times out, it is determined that the power of the relay device 102 has been cut off, a message indicating that the service cannot be used is displayed, and a transition to the power cutoff state is made. In the power-off state, when the power is turned off, the state transits to the idle state.

In FIG. 10, an event without parentheses indicates an input event, and an event with parentheses indicates an output event.

The relay device 102 can be configured, for example, as shown in FIG. In FIG. 11, 200, 211, and 213 are input terminals, 211 and 212 are output terminals, 202 is a message detection unit, 203 is a communication control unit, and 20 is a communication control unit. 4, 209 is a frame configuration unit, 205, 208 is a queue, 206 is a memory, 207 is a profile management unit, Reference numeral 210 denotes a service detection unit.

The bus-type network connected to the service processing device is connected via an input terminal 200 for reception and an output terminal 201 for transmission. On the other hand, the gateway 103 is connected to the input terminal 211 for reception and the output terminal 212 for transmission. As shown in FIG. 10, each of the service processing devices sends (1) a service processing capability notification message and (2) a keep-alive response message to the relay device 102. Send the message. In addition, each service processing device also sends the (3) Data overnight message required for performing the service to the relay device. These messages are input to the message detector 202 via the input terminal 200.

The message detection unit 202 detects these messages and performs the following. (1) If a service processing capacity notification message is detected, the message is transferred to the profile management unit 207, and the service processing capacity notification message is output to the communication control unit 203 to output the service processing capacity notification message. Notifies that the capability notification message has been received.

(2) If a keep-alive response message is detected, it is supplied to the communication control unit 203.

(3) If a data message is detected, a process of supplying it to the queue 208 is performed.

When the service processing capacity notification message is transferred, the profile management unit 207 refers to the profile from the memory 206 storing the profile, and if the update such as addition to the profile is necessary, the profile management unit 207 reads the profile. The updated profile is stored in the memory 206 and the updated profile is supplied to the queue 208 to notify the gateway 103 of the update.

In addition, a power-off detection signal of the service processing device is also supplied to the profile management unit 2007 from the communication control unit 203. When this signal is input, the profile is read from the memory 206, the service processing capability of the service processing device whose power has been cut off is deleted from the profile, written to the memory 206, and output to the queue 208. As shown in FIG. 12, the memory 206 stores the port file 111 of the client 100 and the identifier of the service processing device that processes each service. You.

The communication control unit 203 is supplied with the keep-alive response signal and the service processing capability notification reception signal transmitted from each service processing device via the message detection unit 202. When the service processing capability notification reception signal is supplied, the communication control unit 203 queues a service processing capability notification acknowledgment message to be transmitted to the service processing device that transmitted the service processing capability notification message. 0 to 5 When the communication control unit 203 does not receive a keep-alive response message from a certain service processing device for a certain period of time, the communication control unit 203 determines that the service processing device has been turned off, and For 07, a power-off detection signal for the service processing device is supplied. The communication control unit 203 supplies a keep alive message to the queue 205 at regular intervals in order to detect the state of the service processing device group.

The queue 208 queues the message supplied from the message detector 202 and the profile supplied from the profile manager 207, and supplies the queue to the frame configuration circuit 209. I do. The frame forming circuit 209 forms a frame for transmitting an input signal to the gateway 103. This frame is forwarded to the gateway 103 via the output terminal 212. -Further, the communication control unit 203 exchanges not only the above-mentioned communication between the service processing equipment group and the relay device 102 but also between the relay device 102 and the gateway 103. It also inputs and outputs registration messages and other communication control messages when the power of the relay device 102 is turned on.

On the other hand, a data message and a communication control message relating to the service supplied from the gateway 103 are input to the input terminal 211.

When a message is supplied from the gateway 103 via the input terminal 211, the service detection unit 210 first identifies whether the message is a communication control message or a data message.

If the message is identified as a message overnight, the service provided is detected first. Further, referring to the profile stored in the memory 206, an identifier of a service processing device that processes the provided service is obtained. Memory 206 The stored contents are, for example, as shown in FIG.

Further, the service detection unit 210 supplies the supplied data message to the queue 205 so as to transfer the data message to the corresponding service processing device. The queue 205 queues a data message supplied from the service detecting unit 210 and a keep-alive message supplied from the communication control unit 203, and forms a frame composing unit 205. Supply to 4. The frame configuration unit 204 performs framing for transferring these input messages to the service processing device, and transmits the message to the service processing device via the output terminal 201.

On the other hand, if the input message is a communication control message, service detecting section 210 supplies the communication control message to communication control section 203.

From the input terminal 2 13, the user's preference is notified to the profile management unit 2 07. As the preference, for example, when there are a plurality of service processing devices that can process the same service, there is a priority order for the service processing devices, and a selection of a service processing device that processes a certain service. The profile management unit 2007 can also edit the profile stored in the memory 206 based on the preference from the input terminal 2 13.

The gateway 103 can be configured, for example, as shown in FIG. In FIG. 13, 400, 411 are input terminals, 401, 410 are output terminals, 402, 420 are message detectors, 4003 are content converters, 40 4 is a destination detection unit, 405 is a profile management unit, 406 is a memory, and 407 is a service detection unit.

The input terminal 400 and the output terminal 401 are connected to the client 100 via the communication line 121 or the wireless communication line 131. -The bucket transmitted from the client 100 is supplied to the message detection unit 402 via the input terminal 400.

The message detection unit 402 transfers the profile notification message received from the client 100 to the profile management unit 405. The profile notification message can be configured, for example, as shown in FIG. In FIG. 14, 800 is a header section, 800 is a data section, 800-1 is a destination field, and 800-3 is a source. It is a field. The data section 8001 includes an opening file of the client 1000 as a transmission source.

The profile management unit 405 manages the profile notification message received from the client 100, and stores the profile 111 of the client 100 in the memory 406. An example of the format of the profile 111 in the memory 406 is shown in FIG. In the memory 406, each profile is provided with a field for identifying the corresponding client so that it can be determined that a certain profile is for which client 100.

Packets containing service request messages from the client 100 and other messages to be processed by the server 603 are relayed to the external network 602 via the queue 408 and the output terminal 410. Is done. FIG. 16 shows an example of a format of the service request message transmitted by the client 100 at this time. In FIG. 16, 800 is a header, 800 is a data section, 800-1 is a destination field, 800-2 is a service provider field, and 800-3 is a transmission. Former field. When receiving the registration message of the client 100 and other communication control messages, the message detection unit 402 transfers the message to the communication control unit 4122.

On the other hand, a packet from the external network 602 is input to the input terminal 411.

When the message detection unit 420 detects a message including the content provided from the server 603 to the client 100 from these packets, the message detection unit 420 transmits the content to the destination detection unit 400. Then, it is transferred to the service detection unit 407 and the content conversion unit 403. The destination detection unit 404 and the service detection unit 407 detect the destination client 100 and the service type from the input content and notify the profile management unit 405 .

The profile management unit 405 refers to the profile of the client 100 held in the memory 406 based on the input from the destination detection unit 404 and the service detection unit 407, and The processing capability for the service that 100 has is output to the content conversion unit 403.

The content conversion section 403 receives the client input from the profile management section 405. It converts incoming content based on the client's service processing capabilities so that the client can process it appropriately. In addition, the address of the server that provided the content, the service identifier, the address of the client that processes the destination service, and the address of the gateway that is the source are added, and the queue is output. Send to client 100 via terminal 401.

The transmission message format at this time can be configured, for example, as shown in FIG. In FIG. 17, 800 is a header portion, 800 is a data portion, 800-1 is a destination field, 800-4 is a service provider field, and 800-3 is a service provider field. The source field, 800-0-6, is the service identifier field.

The communication control unit 412 also includes, besides the communication with the client 100, a control message such as a registration message of the client 100 経路 a route control message in the external network 602. Exchanges. Therefore, when the input packets from the input terminals 400 and 411 include a control message, the message detectors 402 and 420 transmit this to the communication controller 412, respectively. Forward control messages. The communication control units 4 1 and 2 transmit control messages via the queues 4 08 and 4 09 and the output terminals 4 10 and 4 0 1, respectively.

An example of content conversion in the gateway 102 will be described in detail. As an example, we will use the example of e-mail for a client with profile 1 1 1. Gateway 102 receives the message in the format shown in FIG. In this case, the identifier of the electronic mail service is inserted in the service identifier field 800_6. Each of the destination detection unit 404 and the service detection unit 407 detects the contents of the service providing field 800 _ 5 and the service identifier field 800 _ 6, and provides the result as a service. It is supplied to the profile management section 405 as a destination client and provided service.

First, the profile management unit 405 searches the memory 406 for a profile of the client identified by the service providing client. Furthermore, the processing capability of the service processing device for the service specified by the provided service is extracted from the searched profile. The extracted processing capability is supplied to the content conversion unit 403. At this time, since the service provided is e-mail, for example, the number of displayed characters is 4 0 characters X 20 lines. The content conversion section 403 divides the number of characters in one line of an e-mail received by the client into a plurality of lines of no more than 40 characters for each line composed of 80 characters.

If there are multiple service processing devices that can process the same service in the profile, the profile has the priority of each service processing device as shown in Fig. 19. It is also possible to convert the content so that it matches the service device with the highest priority.

The server 603 can be configured, for example, as shown in FIG. In FIG. 20, 700, 730 are input terminals, 701 is an output terminal, 712 is a message detection unit, 706 is a content management unit, 709 is a queue, and 720 is Communication control unit. The packet from the external network 602 is supplied to the message detection unit 712 via the input terminal 700.

The message detector 712 identifies whether the supplied packet is a packet containing a service request message from the client or a packet containing a communication control message, and outputs a service request message. Is transferred to the content management unit 720 and the communication control message to the communication control unit 720.

When the service request message is input, the content management unit 706 selects the content corresponding to the requested service, selects the service identifier corresponding to the provided content, the address of the destination gateway, and the service provider. The address of the server 603 which is the destination, the address of the server 603 which is the source, and the address of the client which is the service processing destination are added to the external network via the queue 709 and the output terminal 701. Send to 62. The transmission format at this time can be configured, for example, as shown in FIG. .

In addition, the content management unit 706 is instructed via the input terminal 730 to provide a server-driven service. In this case, the service identifier corresponding to the specified content and the content to be provided, the address of the destination gateway, the address of the server 603 as the service provider, the address of the server 603 as the source, the service processing destination Is added to the address of the client, and transmitted to the external network 602 via the queue 709 and the output terminal 701. At this time, One mat can be configured, for example, as shown in FIG.

On the other hand, the communication control section 712 processes the communication control message and transmits it to the external network 602 via the queue 709 and the output terminal 701.

FIG. 21 shows an example of a sequence for realizing the server-driven service provision according to the present invention using the client 100, the gateway 103, and the server 603 described above.

This example shows a case where a content provider provides a service to a client having n service processing characteristics. These service processing characteristics are realized by service processing equipments l to n. Each of the service processing devices l to n notifies the relay device of the service processing capability. The relay device aggregates these service processing capabilities and notifies the gateway as a client profile. On the other hand, the server sends the content corresponding to the service for the client to the gateway. The content is converted according to its processing capacity and transmitted. The relay device that has received the converted content detects, for example, that the provided service is processed by the service processing device 2, and transfers the content from the server to the service processing device 2.

The relay device 102 shown in the above embodiment can have not only a relay function but also a service processing function at the same time. The configuration of the relay device 102 in this case is shown in FIG.

In FIG. 22, reference numerals 200, 211, 211 are input terminals, 201, 212 are output terminals, 202 is a message detection unit, 203 is a communication control unit, and 2 is a communication control unit. 04, 209 are frame components, 205, 208 are queues, 206 is memory, 207 is profile manager, 210 is service detector, and 220 is relay The service processing capability management unit of the device 102 is a service processing unit of the relay device 102. The relay device 102 is connected to a bus-type network connected to the service processing device via an input terminal 200 for reception and an output terminal 201 for transmission. On the other hand, the relay device 102 communicates with the gateway 103 via an input terminal 211 for reception and an output terminal 212 for transmission. Connected.

The main difference from the configuration in FIG. 11 is that a service processing capacity management unit 220 of the relay device 102 and a service processing unit 221 of the relay device 102 are added.

The service processing unit 221 of the relay device 102 performs service processing based on the data message from the service detection unit 210. If it is necessary to send the data to the gateway 103 in order to process the service, the data is supplied to the queue 208.

The service processing capability management unit 220 of the relay device 102 notifies the profile management unit 207 of the service processing capability for the service processed by the relay device 102. For example, if the relay device 102 has the ability to process the Web service and the e-mail service, the portable computer 100-1 and the relay device 102 can process the same service. In such a case, the user assigns a priority to the service processing device that processes the same service via the input terminal 213 or uniquely selects the service processing device. This information is called the user's preference. When a priority is added as a user's preference, the profile has a priority, for example, as shown in Fig. 19. In such a case, the profile shown in FIG. 19 is notified to the gateway 103.

The gateway 103 shown in the above embodiment can be configured, for example, as shown in FIG. In FIG. 23, 400 and 411 are input terminals, 401 and 410 are output terminals, 402 and 420 are message detection units, 4003 is a content conversion unit, and 4 Reference numeral 04 denotes a destination detection unit, reference numeral 413 denotes a profile management unit, reference numeral 406 denotes a memory, reference numeral 407 denotes a service detection unit, and reference numeral 414 denotes an access monitor. The input terminal 400 and the output terminal 401 are connected to the communication line 121 or the wireless communication line 131, and the gateway 103 communicates with the client 100 through this connection.

The difference from the configuration shown in FIG. 13 is that the bucket from the input terminal 400 is also referred to in the access module 4 14 and the result is notified to the profile management section 4 13. The access monitor 4 14 can grasp the state of the communication line such as the traffic amount in the communication line 122 or the wireless communication line 131. By notifying this information to the profile management unit 4 13, for example, the In such a case, it is possible to perform content conversion according to the line conditions, such as converting the content quality to low-speed transmission regardless of the priority indicated in the profile.

Further, in the communication model shown in FIG. 1, it is possible for the server 603 to manage the profile of the client 600 and to convert the contents of the service to be provided. In this case, each of the gateway 601 and the server 603 can be configured as shown in FIGS. 24 and 25, for example.

First, the configuration and operation of the gateway in this case will be described with reference to FIG. In FIG. 24, 470 and 479 are input terminals, 471 and 476 are output terminals, 474 and 475 are message detectors, 472 and 473 are queues, 478 is a communication control unit.

The gateway 103 is connected to the communication line 121 or the wireless communication line 131 via the input terminal 470 and the output terminal 471, and communicates with the client 100. The input terminal 477 and the output terminal 4776 are connected to the external network 602, and the gateway 103 communicates with the server 603 by this connection. The message detection unit 475 determines whether the packet supplied from the input terminal 470 has a control message of the communication line 12 1 or the wireless communication line 13 1 or the client 100 0 It identifies whether the packet is sent to the server 603 from the server.

If the input packet has a control message, the message detection section 475 transfers it to the communication control section 478. On the other hand, if the message is sent to the server 603, the message is transferred to the queue 473, and transferred to the server 603 via the output terminal 476. The messages transferred to the server 603 include, for example, a profile notification message and a service request message.

Also in this case, the formats shown in FIGS. 14 and 16 can be used for the profile notification message and the service request message, respectively. In these formats, the destination field 800-1 is the server 603. Therefore, the gateway 103 transfers these messages to the server 603.

The control message for the communication line 1 2 1 or the wireless communication line 1 3 1 is composed of a communication control unit 4 7 8, and is transmitted via the queue 4 7 2 and the output terminal 4 7 1 to the communication line. Sent to 1 2 1 or wireless communication line 1 3 1 Further, the communication control unit 478 also handles control messages of the external network 602.

The control message of the external network 602 is supplied to the communication control unit 478 via the input terminal 479 and the message detection unit 474. Further, a control message to the external network 602 constituted by the communication control section 478 is transmitted to the external network 602 via the queue 473 and the output terminal 476.

The message sent from the server 603 to the client 100 input via the input terminal 479 is identified as a control message in the external network 602 by the message detector 474, Transferred to client 100 via output terminal 471.

Next, the configuration and operation of the server 603 will be described with reference to FIG. In FIG. 25, 700, 730 are input terminals, 701 is an output terminal, 702 is a message detection unit, 703 is a content conversion unit, 704 is a destination detection unit, and 70 5 is a profile management unit, 706 is a content management unit, 707 is a service detection unit, 708 is memory, 709 is a queue, and 720 is a communication control unit. The server 603 is connected to the external network 602 via an input terminal 700 and an output terminal 701. The message detection unit 720 receives a packet from the external network 600 via the input terminal 700, detects and identifies a message in the packet. Further, the communication control unit 720 handles a control message in the external network 602.

The control message in the external network 602 detected by the message detection unit 720 is supplied to the communication control unit 720. Then, the control message is transmitted to the external network 602 via the queue 709 and the output terminal 701. The content management unit 706 is supplied with the service request message identified by the message detection unit 702. As described above, the service request message is configured, for example, as shown in FIG. 16, and its destination field is the server 603. The content management unit 706 outputs the content corresponding to the requested service to the destination detection unit 704, the service detection unit 707, and the content conversion unit 703 based on this message. Destination detector 704, service detector 707, content conversion The unit 703 operates in the same manner as the above-described destination detection unit 404, service detection unit 407, and content conversion unit 403.

The content management unit 706 is instructed to provide a server-initiated service via an input terminal 730. This instruction includes the client to which the service is provided, the gateway that relays the content to the client, the service identifier, and the identifier of the content corresponding to the service.

Based on this instruction, the content management unit 706 sends the message including the content corresponding to the service to be provided to the destination detection unit 704, the service detection unit 707, and the content conversion ¾570 Output to 3. This message can use, for example, a format as shown in FIG.

The profile management unit 705 is supplied with the profile notification message of the client 100 detected by the message detection unit 702, and manages the client 100 by holding the open file in the memory 708. . The destination detection unit 704 and the service detection unit 707 receive the transmission content from the content management unit 706, detect the destination and the service, respectively, and supply them to the profile management unit 705. The profile management unit 705 refers to the profile of the client 100 stored in the memory 708 based on the destination and service of the input transmission content, and converts the content into the content conversion unit 703. Notify the contents.

The content conversion section 703 converts the transmission content from the content management section 706 based on the conversion content from the profile management section 705 and outputs the converted content via the queue 709 and the output terminal 701. Send to client 100. The content conversion method can be realized in the same way as the gateway. When a message from the server 603 to the client 100 is relayed by the gateway 103, for example, a format as shown in FIG. 18 can be used for the transmitted message.

FIG. 26 shows an example of a sequence when the above communication model of FIG. 1 is used. This example shows a case where a content provider provides a service to clients having n service processing characteristics. These service processing characteristics are realized by the service processing devices l to n. Each of service processing equipment l to n is medium Notify the relay device of the service processing capability.

The relay device aggregates these service processing capabilities,

To the server via the gateway. On the other hand, the server converts the content corresponding to the service for the client based on the profile of the client, converts the content according to the processing capability, and transmits the content to the client via the gateway.

The relay device receiving the content converted by the server detects that the provided service is processed by the service processing device 2, and transfers the converted content from the server to the service processing device 2. . Thus, the gateway relays the communication between the client and the server.

Next, an example of application of the present invention to the communication model shown in FIG. 2 will be described. In the model shown in Fig. 2, the gateway that connects the communication line 1 2 1 or the wireless communication line 1 3 1 to the external network 602 itself is a server that holds and manages the gateway function 604 and service contents. This is the case with the function 6 0 5.

Such a node is referred to as a content-added gateway 606. The content-added gateway 606 can be configured, for example, as shown in FIG. The difference between the gateway with contents and the gateway shown in FIG. 13 is mainly summarized by the presence or absence of connection to the external network 602 and the presence or absence of the content management unit 450. That is, in FIG. 27, since there is no connection with the external network 602, the communication control unit 421 only processes the control message of the communication line 121 or the wireless communication line 131.

Also, the service request message from the client 100 is notified not to the external network 602 but to the content management unit 450. This service request message is configured, for example, as shown in FIG. Here, the destination field 800-1 and the service destination field 800-2 are both gateways with contents.

Regarding the profile of the client 100, the gateway with content 606 can be managed in the same manner as the gateway shown in FIGS. 15 and 23. In addition, content related to services provided to client 100 Instead of obtaining it from the external network 602, it obtains it from its own content management unit 450.

In order to perform server-driven services, an instruction to provide server-driven services is input to the content management unit 450 through an input terminal 430. Content conversion can be performed in the same manner as the gateway shown in FIG.

FIG. 28 shows a sequence example when the communication model in FIG. 2 is used. FIG. 28 shows the same service provision as in FIGS. 21 and 26. In the communication model shown in FIG. 2, the content-added gateway 606 itself provides and converts the content, and communicates directly with the client. It is also possible to introduce an access monitor 414 like the gateway shown in FIG. 23, and in that case, the gateway with content can be configured as shown in FIG.

Next, an embodiment of a recording medium on which a communication program for realizing the data communication method of the present invention is recorded will be described. In the present embodiment, the above-described client, service processing device, relay device, gateway, server, and content-holding type gateway each include a data processing device and a storage device, and further include a storage medium on which a communication program is recorded. Provide (not shown). This recording medium may be a magnetic disk, a semiconductor memory, a CD-ROM, or another recording medium.

The communication program for controlling the service processing device is read from the recording medium into the storage device of the service processing device, secures an area for storing data required for the storage device, and controls the operation thereof. The data processing device executes the same processing as the communication processing of the service processing device in the above embodiment under the control of the above communication program.

The communication program for controlling the relay device is read from the recording medium into the storage device of the relay device, reserves an area for storing necessary data and the like in the storage device, and controls the operation of the data processing device. I do.

Specifically, in the relay device shown in FIG. 11, the data processing device includes a message detection unit 202, a communication control unit 203, a frame configuration unit 204, a profile management unit 206, a frame configuration The relay device having the service capability shown in FIG. 22 further generates a service capability management unit 220 and a service processing unit 2. 21 is generated, areas for the memory 207 and the queues 205 and 209 are secured in the storage device, and their operations are controlled. The data processing device executes the same process as the communication process of the relay device in the above-described embodiment under the control of the above-mentioned communication program. The communication program for controlling the client is read from the recording medium into the storage device of the client, reserves an area for storing data required for the storage device, and controls the operation of the data processing device. The data processing device executes the same processing as the communication processing of the client in the above embodiment under the control of the above communication program.

The communication program for controlling the gateway is read from the recording medium into the storage device of the gateway, reserves an area for storing necessary data and the like in the storage device, and controls the operation of the data processing device. The data processing device executes the same processing as the communication processing of the gateway in the above embodiment under the control of the above communication program.

More specifically, in the gateway shown in FIG. 13, the data processing device includes a message detection unit 402, a content conversion unit 403, a destination detection unit 404, a profile management unit 405, and a service detection unit 400. 7. The communication control unit 4 12 and the message detection unit 4 20 are generated. The gateway shown in FIG. 3 further generates the access monitor 4 14 and the memory 4 6 6 and the queue 4 9 9 in the storage device. , 408 area is secured and its operation is controlled. The data processing device executes the same processing as the gateway communication processing in the above embodiment under the control of the above communication program.

In the gateway shown in Fig. 24, the message detection units 474, 475 and the communication control unit 478 are generated in the data processing device, and the queue 4 7 2 4 7 3 area is stored in the storage device. And control its operation. The data processing device executes the same processing as the communication processing of the gateway in the above-described embodiment under the control of the above-mentioned communication program.

The communication program for controlling the server is read from the recording medium into the storage device of the server, reserves an area for storing data required for the storage device, and controls the operation of the data processing device. The data processing device executes the same processing as the communication processing of the server in the above embodiment under the control of the communication program. Specifically, the server shown in FIG. 20 generates a message detection unit 71 2, a communication control unit 720, and a content management unit 706 in the data processing device, and stores an area of the queue 709 in the storage device. And control its operation. The data processing device executes the same processing as the communication processing of the server in the above-described embodiment by controlling the above-mentioned communication program.

In the server shown in Fig. 25, the message processing unit 720, the content conversion unit 703, the profile management unit 705, the destination detection unit 704, the profile management A unit 705, a service detection unit 707, and a content management unit 706 are generated, an area of a memory 708 and a queue 709 is secured in a storage device, and operations thereof are controlled. The data processing device executes the same processing as the communication processing of the server in the above embodiment under the control of the above communication program.

The communication program for controlling the content-holding gateway is read from the recording medium into the storage device of the content-holding gateway, and secures an area for storing data required for the storage device and operates the data processing device. Control. The overnight processing device executes the same processing as the communication processing of the content holding gateway in the above embodiment under the control of the above communication program.

More specifically, in the content-holding gateway shown in Fig. 27, the data processing device includes a message detection unit 402, a content conversion unit 400, a destination detection unit 404, and a profile management unit 405. The service detection unit 407 and the communication control unit 412 are generated. In the content-holding gateway shown in FIG. 29, the access monitor 414 is further generated, and the memory 406 and the queue 409 are stored in the storage device. Area and control its operation. The data processing device executes the same processing as the communication processing of the content-holding gateway in the above-described embodiment under the control of the above-mentioned communication program. INDUSTRIAL APPLICABILITY The present invention can be used for a system having a server that stores content and a terminal that downloads the content from the server via a gateway and a relay device.

Claims

The scope of the claims

1. A client that processes one or a plurality of service groups transmits information on the capability of the client corresponding to each of the one or a plurality of service groups to service processing capability information for each of the one or a plurality of service groups. The client notifies the gateway as a profile of all or a part of the service processing capability information,

A content processing method adapted to a service processing apparatus, wherein the gateway processes content transmitted to provide a service from the server to the client based on the profile.

2. A client that processes one or more service groups,

Means for using information on the capability of the client corresponding to each of the one or more service groups as service processing capability information for each of the one or more service groups;

Means for notifying the gateway of all or part of the service processing capability information as a profile of the client;

Means for receiving, from the gateway, the content processed by the gateway based on the profile;

3. A client that processes one or more service groups, and stores information on the client's capabilities corresponding to each of the one or more service groups. Means for receiving, as a profile of the client, all or part of the service processing capability information from a client as service processing capability information for the client;

Means for processing content provided from the server to the client based on the profile;

Means for transmitting the processed content to the client;

A gateway comprising:

4. A client that processes one or a plurality of service groups, and stores information on the capability of the client corresponding to each of the one or a plurality of service groups for each of the one or a plurality of service groups. Means for receiving, as a profile of the client, all or part of the service processing capability information from a client serving as service processing capability information;

Means for monitoring a communication line connected to the client and managing the state of the communication line;

Means for processing content provided from the server to the client based on the profile and the communication line state;

Means for transmitting the processed content to the client;

A gateway comprising:

5. A recording medium that stores a program for a client that processes one or more service groups,

Using information about the client's capabilities corresponding to each of the one or more service groups as service processing capability information for each of the one or more service groups;

Notifying the gateway of all or part of the service processing capability information as a profile of the client;

Receiving from the gateway the content processed by the gateway based on the profile;

A recording medium recording a program for causing the client to execute the method having the above.

6. A recording medium recording a program for a gateway,

A client for processing one or a plurality of service groups, wherein information on the capability of the client corresponding to each of the one or a plurality of service groups is

A client that sets service processing capacity information for each of one or more service groups Receiving all or part of the service processing capability information from the client as a profile of the client;

Processing the content provided from the server to the client based on the profile, and transmitting the processed content to the client;

A storage medium storing a program for causing the gateway to execute the method having the above.

7. A recording medium recording a program for a gateway,

A client for processing one or a plurality of service groups, wherein information on the capability of the client corresponding to each of the one or a plurality of service groups is referred to as service processing capability information for each of the one or a plurality of service groups. Receiving all or a part of the service processing capability information as a client file from the client to perform

The communication line connected to the client is monitored, and the communication line state is managed. The content provided from the server to the client is processed based on the profile and the communication line state. Sending a

A recording medium recording a program for causing the gateway to execute the method having the above.

8. one or a plurality of service processing devices each reporting service processing capability information about the capabilities of the service processing device to the relay device;

The relay device notifying a gateway of a profile including the service processing capability information on the one or more service processing devices, and the gateway transmitting the content to provide a service from a server; Processing based on the profile,

A gateway for transmitting the processed content to the relay device; Transferring the processed content to a service processing device that is determined to correspond to the processed content based on the service processing capability information. Content supply method.

9. Means for notifying the relay device of service processing capability information on the capability of the service processing device,

Means for causing the gateway to notify the gateway of a profile including service processing capability information on one or more service processing devices,

Means for causing the gateway to process, based on the profile, content transmitted to provide service from a server;

Means for causing the gateway to transmit the content processed by the relay device;

Means for receiving the processed content from the relay device;

A service processing device comprising:

10.1.1 means for receiving service processing capability information on the capability of each service processing device from one or more service processing devices;

Means for notifying the gateway of a profile comprising service processing capability information on the one or more service processing devices,

Means for receiving the content transmitted for providing a service from the server and processed at the gateway based on the profile; and responding the processed content to the processed content. Means for transferring to a service processing device determined based on the service processing capability information for one or more service processing devices;

A relay device comprising:

11.1 From the relay device that has received the service processing capability information on the capability of each service processing device from one or more service processing devices, Means for receiving a profile comprising service processing capability information about the service processing device;

Means for processing content provided from the server to the service processing device based on the profile;

Means for transmitting the processed content to the relay device;

Means for causing the relay device to transfer the processed content to a service processing device that is determined based on the service processing information to correspond to the processed content;

A gateway comprising:

12.2 A profile including service processing capability information on one or more service processing devices from a relay device that has received service processing capability information on the capabilities of each service processing device from one or more service processing devices. Means for receiving the

Means for monitoring a communication line connected to the relay device and managing a communication line state;

Means for processing content provided from the server to the service processing device based on the profile and the communication line state;

Means for transmitting the processed content to the relay device;

Means for causing the relay device to transfer the processed content to a service processing device determined to correspond to the processed content based on the service processing information;

A gateway comprising:

1 3. A recording medium on which a program for a service processing device is recorded, wherein service processing capability information on the capability of the service processing device is notified to the relay device.

Causing the gateway to notify the gateway of a profile including service processing capability information on one or more service processing devices, Causing the gateway to process, based on the profile, content transmitted to provide a service from a server;

Causing the gateway to transmit the processed content to the relay device; and causing the relay device to receive the processed content. Recording a program for causing the service processing device to execute a method comprising: Recording medium.

1 4. A storage medium storing a program for a relay device,

Receiving service processing capability information on the capabilities of each service processing device from one or more service processing devices;

Notifying the gateway of a profile including service processing capability information on the one or more service processing devices;

Receiving the content transmitted from the server for providing the service, the content being processed by the gateway based on the profile;

Transferring the processed content to a service processing device that is determined based on the service processing capability information to correspond to the processed content;

A recording medium on which a program for causing the relay device to execute the method having the above is recorded.

1 5. A recording medium on which a program for a gateway is recorded,

A profile including service processing capability information on one or more service processing devices is received from a relay device that has received service processing capability information on the capabilities of each service processing device from one or more service processing devices. Steps and

Processing the content provided from the server to the service processing device based on the profile; Transmitting the processed content to the relay device;

1 6. A recording medium on which a program for a gateway is recorded,

A profile including service processing capability information on the one or more service processing devices is received from the relay device that has received service processing capability information on the capabilities of the respective service processing devices from one or more service processing devices. Steps to perform

Monitoring a communication line connected to the relay device and managing a communication line state;

Processing the content provided from the server to the service processing device based on the profile and the communication line state;

Transmitting the processed content to the relay device;

Causing the relay device to transfer the processed content to a service processing device that is determined to correspond to the processed content based on the service processing capability information;

17.7 A client that processes one or more service groups may transmit information about the capabilities of the client corresponding to each of the one or more service groups to a service processing capability for each of the one or more service groups. The step of making information;

The client notifying the server as a profile of all or a part of the service processing capability information to a server via a gateway; The server converting content for providing a service to the client based on the profile;

Transmitting the content converted by the server to the client via the gateway;

A content supply method adapted to a service processing device, comprising:

18. A client that processes one or more service groups,

Means for notifying the server via the gateway of all or part of the service processing capability information as a profile of the client;

Means for receiving, via a gateway, content processed by the server based on the profile,

It is characterized by having

1.9. A client that processes one or more service groups, and stores information on the capability of the client corresponding to each of the or the plurality of service groups. Means for receiving from the client all or part of the service processing capability information as a profile of the client from the client as information;

Means for transferring the profile to the server;

Means for transferring content processed based on the profile provided from the server to the client;

A gateway comprising:

20. A client that processes one or a plurality of service groups, and transmits information on the capability of the client corresponding to each of the one or a plurality of service groups to each of the one or a plurality of service groups. Service processing capability information Means for receiving, from a client, all or a part of the service processing capability information as a profile of the client via a gateway;

Means for processing the content to be provided to the client based on the profile;

Means for transmitting the processed content to the client via a gateway;

A server comprising:

21.1. A recording medium that records a program for a client that processes one or more service groups,

Using information on the capabilities of the client corresponding to each of the one or more service groups as service processing capability information for each of the one or more service groups;

A step of notifying the server of all or a part of the service processing capability information as a profile of the client via a gateway;

Receiving via the gateway a content processed based on the profile by the server;

A recording medium storing a program for causing the client to execute the method having the above.

2 2. A recording medium on which a program for a gateway is recorded,

A client for processing one or a plurality of service groups, wherein information on the capability of the client corresponding to each of the one or a plurality of service groups is stored in a service processing capability for each of the one or a plurality of service groups; Receiving all or part of the service processing capability information as a profile of the client from a client as information;

Transferring the profile to a server;

Receiving, from the server, content processed based on the profile in the server; Transferring the processed content to the client; and a recording medium storing a program for causing the gateway to execute the method.

2 3. A storage medium storing a program for a server,

A client that processes one or more service groups, wherein information on the capability of the client corresponding to each of the one or more service groups is service processing capability information for each of the one or more service groups. Receiving from the client all or a part of the service processing capability information as a client file via a gateway;

Processing the content provided to the client based on the profile;

Transmitting the processed content to the client via the gateway;

Recording medium for recording a program for causing the server to execute the method having the above.

24.1 one or more service processing devices notifying the relay device of service processing capability information on the capabilities of the service processing devices,

A step in which the relay device notifies a server via a gateway of a profile including service processing capability information on the one or more service processing devices;

The server processing content for providing a service based on the profile;

The server transmitting the processed content to the relay device via a gateway;

Transferring the processed content to a service processing device that is determined based on the service processing capability information to correspond to the processed content; and

A content supply method adapted to a service processing device, comprising:

25. Means for notifying the relay device of service processing capability information on the capability of the own service processing device;

Means for causing the relay device to notify a server of a profile including service processing capability information on one or a plurality of service processing devices via a gateway; and content for providing a service to the server based on the profile. Means for processing

Means for causing the server to transmit the processed content to the relay device via a gateway;

Means for receiving, from the relay device, the processed content, as a result of the relay device determining, based on the service processing capability information, that the content corresponds to the processed content;

A service processing device comprising:

26. means for receiving service processing capability information on the capabilities of each service processing device from one or more service processing devices;

Means for notifying a server via a gateway of a profile comprising service processing capability information on the one or more service processing devices;

Means for receiving, via a gateway, content processed on the basis of the profile by the server, and the processed content corresponding to the content for providing services. Means for transferring to a service processing device determined based on the service processing capability information;

A relay device comprising:

27. A means for receiving, from the relay device, service processing capability information indicating service processing capability of one or more service processing devices,

Means for transmitting the profile to a server;

Means for receiving, from the server, content for providing a service, the content being processed by the server based on the profile; Means for transmitting the processed content to the relay device; and transferring the processed content to the relay processing device to be determined based on the service processing capability information. Means for causing a gateway to be provided.

28. All or a part of the service processing capability information transmitted by the relay device that has received service processing capability information on the capability of one or more service processing devices from one or more service processing devices. Means for receiving the profile to be provided via the gateway;

Means for adding content to be provided to the service processing device based on the profile;

Means for transmitting the processed content to the relay device via the gateway;

Means for causing the relay device to transfer the processed content to a service processing device that is determined to respond to the content based on the service processing capability information.

2 9. A recording medium on which a program for the service processing device is recorded, wherein the service processing capability information on the capability of the service processing device is notified to the relay device.

Causing the relay device to notify a server via a gateway of a profile including service processing capability information on one or a plurality of service processing devices; .. in the profile, content for providing a service to the server; Machining based on the

Causing the server to transmit the processed content to the relay device via the gateway;

The processed content is received from the relay device as a result of the relay device determining that the corresponding content is handled based on the service processing capability information. The

A recording medium storing a program for causing the service processing apparatus to execute the method having the above.

30. A storage medium storing a program for a relay device,

Receiving service processing capability information about the capability of each service processing device from one or more service processing devices;

Notifying a server via a gateway of a profile including service processing capability information on the one or more service processing devices;

Receiving, via a gateway, content for providing a service processed based on the profile at the server;

Transferring the processed content to a service processing device that is determined to correspond to the processed content based on the service processing capability information;

3 1. A recording medium on which a program for a gateway is recorded,

A profile including service processing capability information on one or more service processing devices transmitted from a relay device that has received service processing capability information on the capabilities of each service processing device from one or more service processing devices Transferring a content for providing a service processed based on the profile at the server to the relay device;

Causing the relay device to transfer the processed content to a service processing device that is determined to correspond to the content based on the service processing capability information;

A recording medium storing a program for causing the gateway to execute the method having the above.

3 2. A recording medium on which a program for a server is recorded,

A profile provided with service processing capability information on the one or more service processing devices transmitted from the relay device that has received the service processing capability information on the capabilities of the respective service processing devices from one or more service processing devices. Receiving via a toway;

Adding content to be provided to the service processing device based on the profile;

Transmitting the processed profile to the relay device via the gateway;

33. A client that processes one or more service groups may send information about the client's capabilities corresponding to each of the one or more service groups to a service processing capability for each of the one or more service groups. The step of making information;

The client notifying the content-holding gateway of all or a part of the service processing capability information for each of the one or more service groups as a profile,

A step in which the content-holding gateway processes the content to be transmitted to provide a service to the client based on the profile; and the content-holding gateway sends the processed content to the client. Sending,

A content supply method adapted to a service processing device, comprising:

3 4. A client that processes one or more services,

The capabilities of the client corresponding to each of the one or more service groups Means for making the information of the service processing capability information for each of the one or more service groups,

Means for notifying the content holding gateway of all or part of the service processing capability information for each of the one or more service groups as a profile of the client;

Means for receiving content processed based on the profile by the content-holding gateway;

<35. A client that processes one or more service groups, and stores information on the client's capability corresponding to each of the one or more service groups. Means for receiving, as a profile of the client, all or part of the service processing capability information for each of the one or more service groups from a client as service processing capability information for each of the service groups;

Means for processing the content provided to the client based on the profile;

Means for transmitting the processed content to the client;

Content holding gateway characterized by comprising:

36. A client that processes one or more service groups, and stores information about the client's capabilities corresponding to each of the one or more service groups in a service process for each of the one or more service groups. Means for receiving, as a profile of the client, all or a part of the service processing capability information for each of the one or more service groups from a client as the capability information;

Provide to the client based on the profile and the communication line status Means for processing content based on the profile, means for transmitting the processed content to the client,

A content holding type gateway, comprising: 37. A storage medium that stores a program for a client that processes one or more service groups,

Notifying the content holding gateway of all or a part of the service processing capability information for each of the one or more service groups as a profile of the client;

Receiving the content processed based on the profile by the content-holding gateway;

3 8. A recording medium that records a program for a content-holding gateway,

A client for processing one or a plurality of service groups, wherein information on the capability of the client corresponding to each of the one or a plurality of service groups is provided in a service processing for each of the one or a plurality of service groups; Receiving, as a profile of the client, all or a part of the service processing capability information for each of the one or more service groups from a client as capability information;

Processing the content to be provided to the client based on the profile; transmitting the processed content to the client; and causing the content-holding type gateway to execute the method comprising: A recording medium on which a ram is recorded.

3 9. A storage medium that stores a program for a content holding gateway,

A client that processes one or more service groups, wherein information on the capability of the client corresponding to each of the one or more service groups is service processing capability information for each of the one or more service groups. A step of receiving, as a profile of the client, all or a part of service processing capability information for each of the one or more service groups from the client,

Monitoring a communication line connected to the client and managing a communication line state;

Processing content provided to the client based on the profile based on the profile and the communication line state;

Transmitting the processed content to the client; and a recording medium recording a program for causing the content-holding type gateway to execute the method comprising:

40.1 one or a plurality of service processing devices each notifies the relay device of service processing capability information on the capability of the service processing device;

The relay device passes a profile including the service processing capability information of the one or more service processing devices to a content-holding gateway. Processing based on

The content holding gateway power S, relays the processed content to the service processing device, wherein the relay device transfers the processed content to the service processing device, which is determined based on the service processing capability information to correspond to the processed content. Steps to A content supply method adapted to a service processing device, comprising:

4 1. Means for notifying the relay device of service processing capability information on the capabilities of its own service processing device;

Means for notifying the content holding gateway of a profile including service processing capability information on one or more service processing devices including information on the capability of the service processing device to the relay device;

Means for causing the content-holding gateway to process content for providing services based on the profile;

Means for transmitting the processed content to the content holding gateway;

Means for receiving, from the relay device, the processed content from the service processing device as a result of a determination made by the relay device based on the service processing capability information to correspond to the processed content;

A service processing apparatus comprising:

4.2.2 means for receiving service processing capability information on the capability of each service processing device from one or more service processing devices;

Means for notifying the content holding type gateway of the profile comprising the one or more service processing capability information,

Means for receiving content for providing a service processed based on the profile at the content holding gateway,

Means for transferring the processed content to a service processing device which is determined to correspond to the content based on the service processing capability information;

A relay device comprising:

4 3. A profile including service processing capability information on one or more service processing devices from a relay device that has received service processing capability information on the capabilities of each service processing device from one or more service processing devices Receive Means,

Means for transmitting the processed content to the relay device;

Means for causing the relay device to transfer the processed content to a service processing device which is determined based on the service processing capability information to correspond to the processed content, wherein: .

4 4. The relay device, which receives service processing capability information on the capabilities of each service processing device from one or more service processing devices, receives the service information on the one or more service processing devices. Means for receiving a profile comprising service throughput information;

Means for processing content to be provided to the service processing device based on the profile and communication line status;

Means for transmitting the processed content to the relay device;

Means for causing the relay device to transfer the processed content to a service processing device that is determined based on the service processing capability information to correspond to the processed content, wherein: Toway.

4 5. A recording medium on which a program for the service processing device is recorded, wherein the service processing capability information on the capability of the service processing device is notified to the relay device.

Causing the relay device to notify the content holding gateway of a profile including service processing capability information on one or more service processing devices including information on the capability of the service processing device;

Causing the content-holding gateway to process content for providing a service based on the profile; Causing the content-holding gateway to transmit the processed content;

Receiving, from the relay device, the processed content as a result of the relay device determining, based on the service processing capability information, that the content corresponds to the processed content;

A recording medium on which a program for causing a service processing apparatus to execute the method having the above is recorded.

4 6. A recording medium on which a program for a relay device is recorded,

Notifying a profile having the one or more pieces of service processing capability information to a content holding gateway;

Receiving the content for providing service processed based on the profile at the content-holding gateway;

4 7. A recording medium that records a program for a content-holding type gateway,

A profile including service processing capability information on one or more service processing devices from a relay device that has received service processing capability information on the capabilities of each service processing device from one or more service processing devices. Receiving the

Transmitting the processed content to the relay device; A step of causing the relay device to transfer the processed content to a service processing device determined to correspond to the processed content based on the service processing capability information;

A recording medium recording a program for causing the content holding type gateway to execute the method having the above.

4 8. A recording medium that records a program for a content-holding type gateway,

A profile that includes service processing capability information on one or more service processing devices from the relay device that received service processing capability information on the capabilities of each service processing device from one or more service processing devices at the relay device Receiving the

Processing the content to be provided to the service processing device based on the profile and the communication line status;

Transmitting the processed content to the relay device;

Causing the relay device to transfer the processed content to a service processing device determined to correspond to the processed content based on the service processing capability information;

A recording medium recording a program for causing the content-carrying gateway to execute the method having the above.