WO2010134145A1 - Appareil de communication de données, système de réseau domestique, procédé de communication de données, programme et circuit intégré - Google Patents

Appareil de communication de données, système de réseau domestique, procédé de communication de données, programme et circuit intégré Download PDF

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Publication number
WO2010134145A1
WO2010134145A1 PCT/JP2009/006684 JP2009006684W WO2010134145A1 WO 2010134145 A1 WO2010134145 A1 WO 2010134145A1 JP 2009006684 W JP2009006684 W JP 2009006684W WO 2010134145 A1 WO2010134145 A1 WO 2010134145A1
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Prior art keywords
communication
data
transmission
setting information
communication path
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PCT/JP2009/006684
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English (en)
Japanese (ja)
Inventor
吉崎哲也
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パナソニック株式会社
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Publication of WO2010134145A1 publication Critical patent/WO2010134145A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2805—Home Audio Video Interoperability [HAVI] networks

Definitions

  • the present invention relates to a data communication device that efficiently controls a communication path without interfering with other communication when performing data communication that requires a large communication capacity such as video data between communication terminals.
  • the present invention relates to a data communication device applied to in-home communication wiring.
  • communication when performing data communication that requires a large communication capacity such as video data between communication terminals, information (hereinafter referred to as “communication”) that identifies the communication capacity required between communication terminals and the corresponding communication.
  • communication information
  • the communication control information is transmitted and received before the actual data communication is started.
  • the communication terminal and the switch on the communication path allocate necessary communication capacity based on the shared communication control information, and start communication if allocation is possible.
  • a conventional technique aims at efficient use of a large-scale network such as a line operator or a provider (see, for example, Patent Document 1).
  • Patent Document 1 communication nodes such as routers and switches existing in a network hold information on communication capacity with existing communication nodes and existing data.
  • a technique for establishing a communication path by transferring an optimal data packet in accordance with a user request is disclosed.
  • communication can be started at each node on the communication path after management of communication capacity information and the like is completed. Therefore, there is a problem that a delay occurs from the communication request to the start of communication, and further, the delay time varies depending on the management information processing time of each node.
  • the present invention has been made in view of such a situation, and a data communication apparatus, a home network system, a data communication method, a program, and a data communication apparatus capable of performing communication with a communication bandwidth guaranteed with a smaller processing amount than in the past. And an integrated circuit.
  • a data communication apparatus is connected to an external apparatus via a plurality of communication paths and performs data communication with the external apparatus.
  • a usage setting information storage unit that stores usage setting information indicating the usage of each of the plurality of communication paths, and a transmission request including information for identifying the usage are received and used for the usage from the usage setting information.
  • a transmission request determination unit that determines the communication path, and transmission control that receives transmission data corresponding to the transmission request and transmits the transmission data to an external device using the communication path determined by the transmission request determination unit A part.
  • communication with guaranteed communication bandwidth can be performed by associating the communication path with the application.
  • the memory capacity is small, and the processing performance of the MPU or the like can be kept low, so that the required cost can be suppressed.
  • the delay until the start of communication can be reduced with less processing control than in the prior art.
  • the use setting information indicates a correspondence relationship between the use, the plurality of communication paths that can be used for the use, and the priority among the plurality of communication paths. Then, the transmission request determination unit determines that the communication path that is usable and has the highest priority among the plurality of communication paths that can be used for the application is the communication path that is used for the application. May be. According to the configuration described above, it is possible to increase the processing efficiency of the communication request source such as the application or the OS while increasing the usage rate of the communication path.
  • the usage setting information indicates a correspondence relationship between the usage and the plurality of communication paths that can be used for the usage.
  • the transmission request determining unit determines that two or more of the communication paths that can be used for the application are the communication paths used for the application, and the transmission control unit includes:
  • the transmission data may be transmitted using the two or more communication paths determined by the transmission request determination unit as one virtual communication path. According to the said structure, the utilization factor of a some communication channel can be raised.
  • the data communication device monitors reception requests from the plurality of communication paths, selects a communication path that has received the reception requests, and the communication selected by the communication path monitoring section.
  • a reception control unit that receives reception data from the path.
  • communication with guaranteed communication bandwidth can be performed by associating the communication path with the application.
  • the memory capacity is small, and the processing performance of the MPU or the like can be kept low, so that the required cost can be suppressed.
  • the delay until the start of communication can be reduced with less processing control than in the prior art.
  • the usage setting information indicates a correspondence relationship between the usage and an application used for the usage.
  • the data communication apparatus further identifies the application used for the purpose acquired from the reception request from the usage setting information, and notifies the application of reception of the reception request. May be provided. According to the above configuration, it is possible to start an application or the like corresponding to a use, or call a function such as an application or an OS.
  • the data communication apparatus sends an adjustment request indicating that data communication is performed using the communication path determined by the transmission request determination unit before the transmission data is transmitted by the transmission control unit. You may provide the communication path selection part transmitted to an external device.
  • the data communication device includes a reception control unit that receives reception data from the communication channel, and a communication channel monitoring unit that causes the reception control unit to receive the reception data from the communication channel indicated by the adjustment request. May be provided. As in the above configuration, the actual communication may be started after adjusting which communication path is used on the transmission side and the reception side in advance.
  • a home network system includes the above-described data communication device and an external device connected to the data communication device via the plurality of communication paths. For example, when a plurality of applications are operating simultaneously on the data communication device and each communicates with an external device via the communication channel, the utilization rate of the communication channel can be improved.
  • a data communication method provides a data communication method including an application setting information storage unit that is connected to an external device via a plurality of communication paths and stores application setting information indicating the use of each of the plurality of communication paths. Let the device perform data communication with an external device. Specifically, a transmission request including information for identifying a use is received, a transmission request determination step for determining the communication path used for the use from the use setting information, and transmission data corresponding to the transmission request is received. And a transmission control step of transmitting the transmission data to an external device using the communication path determined in the transmission request determination step.
  • a program according to an aspect of the present invention is provided in a data communication apparatus that includes an application setting information storage unit that is connected to an external device via a plurality of communication paths and stores application setting information indicating the use of each of the plurality of communication paths. And data communication with an external device. Specifically, a transmission request including information for identifying a use is received, a transmission request determination step for determining the communication path used for the use from the use setting information, and transmission data corresponding to the transmission request is received. And a transmission control step of transmitting the transmission data to an external device using the communication path determined in the transmission request determination step.
  • An integrated circuit is a data communication apparatus including an application setting information storage unit that is connected to an external device via a plurality of communication paths and stores application setting information indicating the use of each of the plurality of communication paths.
  • an application setting information storage unit that is connected to an external device via a plurality of communication paths and stores application setting information indicating the use of each of the plurality of communication paths.
  • To perform data communication with an external device Specifically, a transmission request including information for identifying a use is received, a transmission request determination unit that determines the communication path used for the use from the use setting information, and transmission data corresponding to the transmission request is received.
  • a transmission control unit that transmits the transmission data to an external device using the communication path determined by the transmission request determination unit.
  • the present invention can be realized not only as a data communication apparatus but also as an integrated circuit for realizing the functions of the data communication apparatus, or as a program for causing a computer to execute such functions. Needless to say, such a program can be distributed via a recording medium such as a CD-ROM and a transmission medium such as the Internet.
  • the data communication apparatus of the present invention it is possible to perform communication with a guaranteed communication band by associating a communication path with a use.
  • the memory capacity is small, and the processing performance of the MPU or the like can be kept low, so that the required cost can be suppressed.
  • FIG. 1 is a block diagram of a data communication apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram illustrating an example of application setting information.
  • FIG. 3 is a block diagram of a data communication apparatus according to Embodiment 2 of the present invention.
  • FIG. 4 is a block diagram of a home network system according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic diagram illustrating an example of a multiple communication path.
  • FIG. 1 is a block diagram of a data communication apparatus 1 according to the first embodiment.
  • the data communication device 1 is connected to an external device (not shown) via a plurality of communication paths, and performs data communication with the external device.
  • the data communication apparatus 1 includes a transmitting unit 101 and a receiving unit 102.
  • the transmission unit 101 includes a communication path usage setting unit 10101, a usage setting information storage unit 10102, a transmission request determination unit 10103, and a transmission control unit 10104.
  • the incoming call unit 102 includes a communication path usage setting unit 10201, a usage setting information storage unit 10202, a reception request determination unit 10203, a communication path monitoring unit 10204, and a reception control unit 10205.
  • Each of the above units can be realized as a program that is normally executed on a computer including a CPU, a memory, and the like.
  • the processing procedure of each unit is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).
  • the transmission unit 101 is a block for starting data communication.
  • the communication channel usage setting unit 10101 sets usage setting information indicating the usage of each of the plurality of communication channels in the usage setting information storage unit 10102.
  • the application setting information is typically initially set when the data communication apparatus 1 is installed. Also, it may be set as needed when a new application is added or when a new communication path is added.
  • the plurality of communication paths may be a plurality of physically independent communication paths, or one that logically controls one physical communication path as a plurality of communication paths by a method such as frequency multiplexing.
  • the method for setting the usage setting information may be a method for setting each terminal individually, or a method for distributing setting information from a terminal corresponding to a server to another client terminal.
  • the usage setting information storage unit 10102 stores the usage setting information set by the communication path usage setting unit 10101.
  • An example of application setting information set in the application setting information storage unit 10102 is shown in FIG.
  • the application setting information shown in FIG. 2 indicates a correspondence relationship between an application, one or more communication paths that can be used for the application, and a priority between one or more communication paths.
  • communication channels A, B, and C there are three communication channels A, B, and C that can be used for “network TV viewing” for viewing network broadcasts such as IPTV (Internet Protocol TeleVision).
  • IPTV Internet Protocol TeleVision
  • the communication paths C and D can be used. Even when VOD viewing is performed, a communication path can be selected according to priority.
  • the communication channel C is shared with network TV viewing.
  • the communication path E is allocated exclusively for browsing Web pages.
  • the application setting information storage unit 10102 may store application setting information in which an arbitrary application of a communication channel and a communication channel that can be used for the application are associated one-to-one, one-to-one, or one-to-many. it can.
  • many-to-one is, for example, a case where both the intended use X and use Y can select the same communication path.
  • the communication path C can be used redundantly for both “network TV viewing” and “VOD viewing”.
  • one-to-one is a case where, for example, when there are a plurality of communication paths, a communication path that can be selected for an arbitrary application X is limited to only one communication path.
  • the communication path used for the “browsing web page” is only the communication path E, and the communication path E is only used for the “browsing web page”. It can be used.
  • one-to-many is a case where a plurality of communication paths can be selected for an arbitrary application X when there are a plurality of communication paths, for example.
  • a plurality of communication paths can be selected for an arbitrary application X when there are a plurality of communication paths, for example.
  • the priority at the time of selecting each communication path may be information that can change the priority at any time according to the external condition by including not only the priority order of selection but also external condition information.
  • the application setting information storage unit 10102 may be a volatile memory that temporarily stores information, a non-volatile memory or a hard disk that permanently stores information. That is, the specific configuration of the usage setting information storage unit 10102 is not particularly limited.
  • the transmission request determination unit 10103 receives a transmission request for requesting transmission of transmission data from an application, an OS, or the like.
  • This transmission request can include information identifying the application.
  • the transmission request determination unit 10103 can identify the use from the destination port number of the TCP header. Specifically, if “80” is set in the destination port number, it is determined that “Web page browsing”.
  • the transmission request determination unit 10103 can also select a communication path from the priority and communication status when selecting each communication path.
  • the use status of the communication channel of the transmission control unit 10104, the request priority of the application and OS, and the like are used. For example, when a transmission request for “VOD viewing” is received, it is possible to use the communication channel D with the highest priority among the communication channels C and D associated with the application (used for transmission / reception of other data). Is not determined). If it is usable, the communication path D is selected, and if it is not usable, it is determined whether or not the communication path C can be used.
  • a QoS (Quality of Service) item in the IP header can be used as the “request priority”.
  • the transmission request determination unit 10103 may simultaneously select a plurality of communication paths according to transmission requests from applications, OSs, and the like. At this time, the transmission control unit 10104 can perform data communication by controlling a plurality of selected communication paths as one virtual communication path. Note that the application or OS makes such a transmission request when, for example, the communication band necessary for transmission of transmission data exceeds the band of individual communication paths of a plurality of communication paths.
  • the communication bandwidth is virtually controlled as one communication path.
  • link aggregation that bundles a plurality of physical communication paths into one may be used.
  • the transmission control unit 10104 transmits transmission data to the receiving unit 102 of another data communication device (hereinafter referred to as “external device”) using the communication path selected by the transmission request determination unit 10103.
  • the external device has a function equivalent to that of the data communication device 1.
  • the receiving unit 102 is a block that starts data communication in response to a request from an external device.
  • the communication path monitoring unit 10204 monitors a plurality of communication paths and selects a communication path that has a reception request. For example, the communication path monitoring unit 10204 receives a reception request when a data packet having its own destination information is received or when a data packet having the multicast group information to which it belongs is received on an arbitrary communication path. The communication channel is selected. In addition, when the transmission unit 101 of the external apparatus treats a plurality of communication paths as a single communication path and transmits transmission data, the plurality of communication paths may be selected.
  • the reception control unit 10205 performs data communication with the transmission unit 101 of the external device. Also, the reception control unit 10205 notifies the communication path monitoring unit 10204 of the communication status of each of the plurality of communication paths. For example, the communication path monitoring unit 10204 is notified of data packet destination information and multicast group information.
  • the data communication apparatus 1 When the incoming call unit 102 activates an appropriate application or calls an OS function, the data communication apparatus 1 further includes a communication channel usage setting unit 10201, a usage setting information storage unit 10202, and a reception request determination unit 10203. Can be provided. In addition, in the usage setting information, a correspondence relationship between the usage and the application used for the usage is added. In the first embodiment, an example in which the communication path usage setting unit 10201, the usage setting information storage unit 10202, and the reception request determination unit 10203 are provided is described, but it is not essential.
  • the functions of the communication path usage setting unit 10201 and the usage setting information storage unit 10202 of the incoming call unit 102 are the same as those of the communication path usage setting unit 10101 and the usage setting information storage unit 10102 of the transmission unit 101, and thus description thereof is omitted.
  • the transmission unit 101 and the reception unit 102 may share the same communication channel usage setting unit 10101 and usage setting information storage unit 10102.
  • the reception request determination unit 10203 determines the usage of the communication path that has received the reception request, based on the usage setting information stored in the usage setting information storage unit 10202.
  • the reception request determination unit 10203 notifies the application and OS of the reception request and usage.
  • the reception request determination unit 10203 receives a reception request from a plurality of communication paths at the same time, or when the reception request includes information indicating that communication is performed using a plurality of communication paths.
  • the plurality of communication paths may be selected at the same time.
  • the reception control unit 10205 can also perform data communication by controlling a plurality of selected communication paths as one virtual communication path.
  • the transmission unit 101 Before transmitting / receiving data (such as during installation), the transmission unit 101 stores application setting information indicating a correspondence relationship between a communication path and an application in the application setting information storage unit 10102 based on setting information from an application or an OS. Accumulate.
  • the transmission request determination unit 10103 of the transmission unit 101 selects an appropriate communication path from the application setting information based on information identifying the application included in the transmission request received from the application or the OS. Then, the transmission control unit 10104 starts data communication using the selected communication path.
  • the communication path monitoring unit 10204 monitors a plurality of communication paths, and determines whether the data is for itself using the destination information of the data packet. If it is determined that the data is for itself, the reception control unit 10205 receives the data. Also, the reception request determination unit 10203 determines the usage corresponding to the communication path based on the usage setting information, and notifies the reception request and usage to the application or the OS. Further, the incoming call unit 102 performs subsequent data communication by starting an appropriate application.
  • the usage method of the communication path usage setting unit 10201 and the usage setting information storage unit 10202 in the receiving unit 102 is the same as the usage method of the communication path usage setting unit 10101 and the usage setting information storage unit 10102 in the transmission unit 101. Is also possible.
  • the receiving terminal can automatically start an application corresponding to the application, and call a function such as an application or an OS.
  • processing in the first embodiment may be realized by software. Then, this software may be distributed by software download or the like. Further, this software may be recorded on a recording medium such as a CD-ROM and distributed. On the other hand, it can also be realized as an integrated circuit that executes the processing in the first embodiment. This also applies to other embodiments in this specification.
  • FIG. 3 is a block diagram of the data communication apparatus 2 according to the second embodiment.
  • the data communication device 2 includes a transmitting unit 201 and a receiving unit 202.
  • the transmission unit 201 includes a communication channel usage setting unit 20101, a usage setting information storage unit 20102, a transmission request determination unit 20103, a communication channel selection unit 20104, and a transmission control unit 20105.
  • the incoming call unit 202 includes a communication path monitoring unit 20201 and a reception control unit 20202.
  • Each of the above units can be realized as a program that is normally executed on a computer including a CPU, a memory, and the like.
  • the processing procedure of each unit is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).
  • the transmission unit 201 is a block for starting data communication.
  • the communication channel usage setting unit 20101 sets usage setting information indicating the usage of each of a plurality of communication channels in the usage setting information storage unit 20102.
  • the application setting information is typically initially set when the data communication apparatus 2 is installed. Also, it may be set as needed when a new application is added or when a new communication path is added.
  • the plurality of communication paths may be a plurality of physically independent communication paths, or one that logically controls one physical communication path as a plurality of communication paths by a method such as frequency multiplexing.
  • the method for setting the usage setting information may be a method for setting each terminal individually, or a method for distributing setting information from a terminal corresponding to a server to another client terminal.
  • the usage setting information storage unit 20102 stores the usage setting information set by the communication path usage setting unit 20101.
  • An example of application setting information set in the application setting information storage unit 20102 is shown in FIG. The description of FIG. 2 is omitted.
  • the application setting information storage unit 20102 may also store application setting information in which an arbitrary application of a communication channel and a communication channel that can be used for the application correspond to one-to-one, one-to-one, or one-to-many. it can. Details have already been described and will be omitted.
  • the priority at the time of selecting each communication path may be information that can change the priority at any time according to the external condition by including not only the priority order of selection but also external condition information.
  • the application setting information storage unit 20102 may be a volatile memory that temporarily stores information, a non-volatile memory that stores information permanently, or a hard disk. That is, the specific configuration of the usage setting information storage unit 20102 is not particularly limited.
  • the transmission request determination unit 20103 receives a transmission request from an application, an OS, or the like.
  • This transmission request can include information identifying the application.
  • the transmission request determination unit 20103 can identify the usage from the destination port number of the TCP header. Specifically, if “80” is set in the destination port number, it is determined that “Web page browsing”.
  • the transmission request determination unit 20103 can also select a communication path from the priority and communication status when selecting each communication path.
  • the use status of the communication channel of the transmission control unit 20105, the request priority of the application and OS, and the like are used. For example, when a transmission request for “VOD viewing” is received, it is possible to use the communication channel D with the highest priority among the communication channels C and D associated with the application (used for transmission / reception of other data). Is not determined). If it is usable, the communication path D is selected, and if it is not usable, it is determined whether or not the communication path C can be used.
  • a QoS (Quality of Service) item in the IP header can be used as the “request priority”.
  • the transmission request determination unit 20103 may simultaneously select a plurality of communication paths according to transmission requests from applications, OSs, and the like.
  • the transmission control unit 20105 can perform data communication by controlling the selected plurality of communication paths as one virtual communication path.
  • the application or OS makes a transmission request as described above, for example, when the communication band necessary for transmission of transmission data exceeds the band of individual communication paths of a plurality of communication paths.
  • the communication bandwidth is virtually controlled as one communication path.
  • link aggregation that bundles a plurality of physical communication paths into one may be used.
  • the communication path selection unit 20104 Prior to transmission of transmission data by the transmission control unit 20105, the communication path selection unit 20104 sends an adjustment request indicating that data communication is performed using the selected communication path to the incoming unit 202 of the external device. To send. Thereby, adjustment and selection of a communication path can be performed between data communication apparatuses that perform data communication.
  • Specific communication path selection methods include, for example, a method of selecting a communication path requested by the transmission unit 201, a method of selecting a communication path requested by the receiving unit 202 of another data communication apparatus, and management of communication paths There is a method of inquiring a server to select a communication path. That is, it is only necessary to finally determine a communication path for performing data communication, and a specific method is not particularly limited.
  • the transmission control unit 20105 performs data communication with the incoming call unit 202 using the communication path selected by the communication path selection unit 20104.
  • the receiving unit 202 is a block that starts data communication in response to a request from an external device.
  • the communication channel monitoring unit 20201 receives an adjustment request from the communication channel selection unit 20104 of the external device, and performs adjustment and selection of a communication channel for performing data communication.
  • Specific methods for selecting a communication path include, for example, a method for selecting a communication path requested by the transmission unit 201 of the external device, a method for selecting a communication path requested by the receiving unit 202, and a server that manages the communication path. There are methods for inquiring and selecting a communication path. That is, it is only necessary to finally determine a communication path for performing data communication, and a specific method is not particularly limited.
  • the transmission unit 201 of the external apparatus treats a plurality of communication paths as one communication path and transmits transmission data
  • the plurality of communication paths may be selected.
  • the reception control unit 20202 performs data communication with the transmission unit 201 of the external device using the communication path selected by the communication path monitoring unit 20201.
  • the incoming call unit 202 notifies the application and OS of the reception request and usage.
  • the data communication apparatus 2 further includes the communication path use setting unit 10201, the use setting information storage unit 10202, and the configuration described in the first embodiment.
  • a reception request determination unit 10203 can also be provided.
  • the transmission unit 201 and the receiving unit 202 may share the same communication channel use setting unit 20101 and use setting information storage unit 20102.
  • the communication channel usage setting unit 20101 of the transmission unit 201 sets usage setting information indicating the correspondence between the communication channel and the usage based on the setting information from the application or OS before data transmission / reception (during installation or the like). And stored in the use setting information storage unit 20102.
  • the transmission request determination unit 20103 of the transmission unit 201 selects an appropriate communication path from the usage setting information based on the usage information included in the transmission request from the application or the OS.
  • the communication path selection unit 20104 transmits information on the communication path selected by the transmission request determination unit 20103 to the communication path monitoring unit 20201 of the external device as an adjustment request, and adjusts the communication path used for data communication.
  • the communication path for transmitting the adjustment request may be a communication path that actually performs data communication, or may be a communication path that is associated with the use of “transmission of adjustment request”.
  • the transmission control unit 20105 transmits the transmission data to the external device using the communication channel selected by the communication channel selection unit 20104.
  • the reception control unit 20202 of the external device receives the received data from the data communication device 2 using the communication path adjusted by the transmission / reception of the adjustment request.
  • the second embodiment it is possible to perform communication with a guaranteed communication band by associating a communication path with a use.
  • the memory capacity is small, and the processing performance of the MPU or the like can be kept low, so the required cost can be reduced.
  • the delay until the start of communication can be reduced with less processing control than in the prior art.
  • the receiving terminal can automatically start an application corresponding to the application, and call a function such as an application or an OS.
  • FIG. 4 is a block diagram of the home network system 3 according to the third embodiment.
  • the home network system 3 includes a home network terminal 301, a home video server 302, a home router 303, and a multiplex communication path 304.
  • the home network terminal 301 includes a data communication device 30101, a video playback application 30102, an IPTV application 30103, and an Internet browser 30104.
  • the home video server 302 includes a data communication device 30201.
  • the home router 303 includes a data communication device 30301 and a broadband communication device 30302.
  • the home network terminal 301, the home video server 302, and the home router 303 are connected to each other by a multiplex communication path 304.
  • the home router 303 is connected to an external communication network via the broadband communication device 30302.
  • Each of the above units can be realized as a program that is normally executed on a computer including a CPU, a memory, and the like.
  • the processing procedure of each unit is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).
  • the data communication device 30101, the data communication device 30201, and the data communication device 30301 included in the home network terminal 301, the home video server 302, and the home router 303 correspond to the data communication device 1 of the first embodiment.
  • the home network terminal 301 is a user terminal equipped with an application using network communication such as a video reproduction application 30102, an IPTV application 30103, and an Internet browser 30104.
  • a video reproduction application 30102 such as a video reproduction application 30102, an IPTV application 30103, and an Internet browser 30104.
  • home appliances such as digital televisions and recorders have equivalent functions.
  • the video playback application 30102 transmits a video distribution request to the home video server 302 and receives video data transmitted from the home video server 302 via the network. Next, the received video data is subjected to decryption of various encryptions and various decoding processes to perform video reproduction.
  • the distribution server that requests the video distribution is not limited to the in-home video server 302 but may be a video server outside the home via an external communication network.
  • the IPTV application 30103 is an application for viewing a network television for viewing a network broadcast. It receives video data distributed by multicast, such as digital terrestrial broadcast network retransmission, and plays back video.
  • multicast such as digital terrestrial broadcast network retransmission
  • the Internet browser 30104 is an application provided for use and browsing of the World Wide Web (hereinafter referred to as WWW).
  • the home video server 302 is a video server that distributes video content to a home network based on a request from the video playback application 30102.
  • a VOD server that performs one-to-one distribution
  • a multicast distribution server that performs one-to-many distribution
  • the home router 303 has a relay function for connecting the external communication network and the home communication network. In addition to the functions related to the present invention, it may have a function corresponding to a broadband router connected to an external communication network provided by various network providers.
  • the broadband communication apparatus 30302 has a function of performing destination conversion of data packets and the like in order to connect the outside communication network and the home communication network.
  • the multiple communication path 304 includes a plurality of communication paths A, B, C, D, and E.
  • the communication paths A to E correspond to the communication paths A to E shown in FIG.
  • the multiplex communication path 304 is typically a LAN (Local Area Network).
  • FIG. 5 there is a method of performing data communication by superimposing communication signals on different frequency carriers on a physically single communication line as a method of the multiplex communication path 304. .
  • the video playback application 30102 requests the data communication device 30101 to communicate with the home video server 302.
  • the data communication apparatus 30101 determines the usage from the request from the video reproduction application 30102. Then, the transmission request determination unit 10103 selects a communication path to be used for the application from the application setting information stored in the application setting information storage unit 10102. The use at this time is “VOD viewing” shown in FIG. Therefore, the transmission request determination unit 10103 selects the communication channel D having the highest priority among the communication channels C and D that can be used for the application.
  • the data communication device 30101 starts data communication from the video reproduction application 30102 to the home video server 302 using the communication path D.
  • the data communication device 30201 of the home video server 302 monitors communication requests to itself on the communication paths A, B, C, D, and E.
  • the data communication apparatus 30201 determines that it is a video distribution request from the correspondence between the communication path D and the usage. Then, the video distribution function is called, and video distribution to the video reproduction application 30102 is started.
  • the IPTV application 30103 requests the data communication apparatus 30101 to participate in a multicast group corresponding to the viewing channel in order to receive data from an arbitrary network television distribution server in the outside communication network.
  • the data communication device 30101 determines the usage from the request from the IPTV application 30103. Then, the transmission request determination unit 10103 selects a communication path to be used for the application from the application setting information stored in the application setting information storage unit 10102. The application at this time is “network television viewing” shown in FIG. Therefore, the transmission request determination unit 10103 selects the communication path A having the highest priority among the communication paths A, B, and C that can be used for the application.
  • the data communication apparatus 30101 requests the data communication apparatus 30301 of the home router 303 to participate in the multicast group corresponding to the viewing channel using the communication path A.
  • the data communication apparatus 30301 of the home router 303 monitors communication requests to itself on the communication paths A, B, C, D, and E.
  • the data communication device 30301 of the home router 303 detects a communication request to itself on the communication path A, the data reception request of any network television distribution server of the outside communication network is determined from the correspondence between the communication path A and the usage. to decide. Then, the remote communication network is requested via the broadband communication apparatus 30302 to participate in the multicast group corresponding to the viewing channel.
  • the Internet browser 30104 requests the data communication apparatus 30101 to communicate with an arbitrary WWW server on the outside communication network in order to receive data from an arbitrary WWW server on the outside communication network.
  • the data communication device 30101 determines the usage from the request from the Internet browser 30104. Then, the transmission request determination unit 10103 selects a communication path used for the application from the application setting information stored in the application setting information storage unit 10102. The use at this time is “browsing a Web page” shown in FIG. Therefore, the transmission request determination unit 10103 selects the communication path E used for the application.
  • the data communication device 30101 requests the data communication device 30301 of the home router 303 to communicate with an arbitrary WWW server in the outside communication network using the communication path E.
  • the data communication apparatus 30301 of the home router 303 monitors communication requests to itself on the communication paths A, B, C, D, and E.
  • the data communication apparatus 30301 determines that it is a data communication request with an arbitrary WWW server in the outside communication network from the correspondence between the communication path E and the usage. To do. Then, a connection to an arbitrary WWW server is requested to the outside communication network via the broadband communication device 30302.
  • the home network terminal can automatically start an application or the like corresponding to the application, or call a function such as an application or an OS.
  • each process may be realized by centralized processing by a single device (system), or by distributed processing by a plurality of devices. May be.
  • processing in the above-described embodiment may be realized by a dedicated H / W (integrated circuit or the like), or the above-described processing procedure stored in a storage device (ROM, RAM, hard disk, or the like) can be executed.
  • a storage device ROM, RAM, hard disk, or the like
  • Such predetermined program data may be realized by being interpreted and executed by the CPU.
  • the method of circuit integration is not limited to LSI (Large Scale Integration), but may be realized by a dedicated circuit or a general-purpose processor, or an FPGA (Field Programmable Gate Array) that can be programmed after manufacturing the LSI.
  • a reconfigurable processor that can reconfigure the connection and setting of circuit cells inside the LSI may be used.
  • the program data may be introduced into the storage device via a recording medium, or may be directly executed from the recording medium.
  • the recording medium refers to a recording medium such as a semiconductor memory such as a ROM, a RAM, a flash memory, a magnetic disk memory such as a flexible disk or a hard disk, an optical disk such as a CD-ROM, DVD or BD, or a memory card such as an SD card.
  • the recording medium is a concept including a communication medium such as a telephone line or a conveyance path.
  • the present invention is advantageously used for data communication devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention concerne un appareil de communication de données (1) qui est connecté par l'intermédiaire d'une pluralité de lignes de communication à un dispositif externe et qui échange des données avec le dispositif externe. En particulier, l'appareil de communication de données (1) est équipé des éléments suivants : une unité de stockage d'informations de réglage de fonction (10102) qui stocke des informations de réglage de fonction montrant la fonction de chacune de la pluralité de lignes de communication ; une unité de détermination de demande de transmission (10103) qui reçoit une demande de transmission comprenant les informations identifiant la fonction et détermine, à partir des informations de réglage de fonction, la ligne de communication qui est utilisée pour cette fonction ; et une unité de commande de transmission (10104) qui reçoit des données de transmission correspondant à une demande de transmission et transmet les données de transmission au dispositif externe, en utilisant la ligne de communication déterminée par l'unité de détermination de demande de transmission (10103).
PCT/JP2009/006684 2009-05-18 2009-12-08 Appareil de communication de données, système de réseau domestique, procédé de communication de données, programme et circuit intégré WO2010134145A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009120369A JP2010268410A (ja) 2009-05-18 2009-05-18 データ通信装置、ホームネットワークシステム、データ通信方法、プログラム、及び集積回路
JP2009-120369 2009-05-18

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WO2010134145A1 true WO2010134145A1 (fr) 2010-11-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015023340A (ja) * 2013-07-17 2015-02-02 株式会社デンソー 機器接続装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1065708A (ja) * 1996-06-10 1998-03-06 Mitsubishi Electric Inf Technol Center America Inc 非同期転送モードコンピュータネットワークシステム
JP2000151643A (ja) * 1998-11-13 2000-05-30 Sony Corp 通信装置及びこの通信装置を搭載する自動車
JP2001077853A (ja) * 1999-09-03 2001-03-23 Toshiba Corp マルチメディア伝送システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1065708A (ja) * 1996-06-10 1998-03-06 Mitsubishi Electric Inf Technol Center America Inc 非同期転送モードコンピュータネットワークシステム
JP2000151643A (ja) * 1998-11-13 2000-05-30 Sony Corp 通信装置及びこの通信装置を搭載する自動車
JP2001077853A (ja) * 1999-09-03 2001-03-23 Toshiba Corp マルチメディア伝送システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015023340A (ja) * 2013-07-17 2015-02-02 株式会社デンソー 機器接続装置

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