WO2007114035A1 - 接続支援サーバ、及び通信機器 - Google Patents
接続支援サーバ、及び通信機器 Download PDFInfo
- Publication number
- WO2007114035A1 WO2007114035A1 PCT/JP2007/055528 JP2007055528W WO2007114035A1 WO 2007114035 A1 WO2007114035 A1 WO 2007114035A1 JP 2007055528 W JP2007055528 W JP 2007055528W WO 2007114035 A1 WO2007114035 A1 WO 2007114035A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- request
- communication device
- device discovery
- communication
- relay
- Prior art date
Links
Classifications
-
- 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
- H04L12/2807—Exchanging configuration information on appliance services in a home automation network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/16—Multipoint routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
Definitions
- the present invention relates to a connection support server and a communication device, and more particularly to a connection support server and a communication device that enable discovery of a device on a different network in a network configured by a plurality of routers.
- UPnP Universal Plug and Play
- UPnP Forum a technology for interconnecting devices in a home network.
- devices in the home network can be automatically searched and discovered by multicast and can be interconnected with the discovered devices.
- FIG. 17A is a diagram showing a home network configured by conventional UPnP-compatible devices.
- a PC television, and video are connected to a modem with a router function that lends provider power.
- Fig. 17B shows the procedure for device discovery using UPnP when operating video from a PC.
- a device discovery request including information indicating that the PC power search target is video is multicast transmitted over the network (step S 201).
- the device discovery request is received by all UPnP compatible devices on the network, and each device determines whether or not it is the search target power S itself.
- the video determines that the search target is itself, and transmits a device discovery response including information necessary for operation to the request transmission source PC (step S202). PC By receiving this device discovery response, it becomes possible to operate the video.
- FIG. 18A a router with a router function that also lends provider power is connected to a router with a wireless function that the user has purchased, and devices are connected to each router.
- this type of network configuration is called a router multi-stage configuration.
- Fig. 18A the procedure for device discovery by UPnP when the PC wants to operate the video is shown in Fig. 18B.
- a device discovery request including information that the PC power search target is video is multicast transmitted over the network (step S301).
- the device discovery request is received by all UPnP compatible devices (wireless router and television T2 in Fig. 18A) on the network, and each device determines whether the search target is itself.
- the wireless router does not transfer the device discovery request packet from the PC to the private network N1. Therefore, since the video to be searched cannot receive the device discovery request and does not return the device discovery response, a device discovery response reception waiting timeout occurs in the PC (step S302), and device discovery fails (step S303). ).
- Patent Document 1 a conventional network connection apparatus and method for connecting a plurality of individually configured networks so that a plurality of devices existing on each network can be interconnected are also disclosed (for example, Patent Document 1).
- each network connection device is installed on a plurality of individually configured networks, and each network connection device is connected.
- the connection device manages the information of the devices on each network and can exchange the information to interconnect with devices on different networks.
- FIG. 19A is a diagram showing a home network in a router multi-stage configuration in which a gateway including the network connection device of Patent Document 1 is arranged.
- the network connection device D1 uses the IP address and port number of the gateway G2 as the access information of the network connection device D2.
- the network connection device D2 uses the IP address and port number of the gateway G1 as the access information of the network connection device D1. And have already been acquired.
- FIG. 19A FIG. 19B shows a procedure for performing device discovery using the network connection device and method in Patent Document 1 when the PC operates the video.
- network connection device D1 collects information on devices (television Tl, video) on private network N1 by a multicast device discovery request (step S401).
- the network connection device D2 collects information on devices (PC, television T2) on the private network N2 by a multicast device discovery request (step S402).
- the PC on the private network N2 transmits a device discovery request including information that the search target is video to the network connection device D2 (step S403).
- the network connection device D2 that has received this request uses the IP address and port number of the gateway G1 as the transmission destination, and forwards the device discovery request to the network connection device D1 (step S404).
- the network connection device D1 searches the device information acquired in step S402 for information related to the search target video included in the received device discovery request, and transmits it to the network connection device D2 as a device discovery response ( Step S405).
- the network connection device D2 transfers the response to the request source PC (step S406).
- the PC can operate videos on different networks.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-320741
- one network connection device is always required for each network divided for each gateway.
- the number of routers placed in order to satisfy the first requirement! (Ie, the number of networks separated by routers)
- a network connection device is required, which requires a great deal of cost to the user.
- an object of the present invention has been made in view of the above problems, and is to provide a communication device capable of configuring a network with a low-cost and simple procedure.
- the present invention is a network composed of a plurality of sub-network cameras connected via a plurality of NAT devices, and is connected to an arbitrary sub-network in the network. It is intended for communication devices that have a connection support server function that establishes communication paths with communication devices connected to different sub-networks.
- the communication device of the present invention receives a relay request for a device discovery request from an arbitrary communication device, the communication device forwards the relay request for the device discovery request to another communication device.
- a device discovery response transfer unit that, when a device discovery response is received, forwards the received device discovery response to the communication device that is the relay request transmission source.
- the device When receiving a device discovery request relay request, the device relays the device discovery request to any communication device connected to a subnetwork other than the subnetwork to which the request source communication device is connected. Forward the request.
- the device discovery response transfer unit When a device discovery response is received from a communication device that has forwarded a relay request for a device discovery request, the device discovery response transfer unit has a connection support server function that forwards the device discovery response to the communication device that is the device discovery request transmission source. Have.
- the communication device sends a device discovery request for a desired communication device to the device discovery request transmission unit that performs multicast or broadcast transmission on its own subnet network, and communication devices on different sub-networks.
- a relay request transmission unit that transmits a relay request for a device discovery request; and a device discovery response reception unit that receives a device discovery response.
- the device discovery request transmission unit transmits a device discovery request for a desired communication device on its own subnet network. If the device discovery response receiver does not receive a device discovery response to the device discovery request, the relay request transmitter transmits a device discovery request relay request to communication devices on different sub-networks.
- the device discovery response receiving unit discovers a desired communication device by receiving a device discovery response to the relay request.
- the communication device itself can discover a desired communication device in the network.
- a relay request transfer unit When a relay request transfer unit receives a relay request for a device discovery request from a communication device in a different subnetwork, the relay request transfer unit performs device search by transmitting the device discovery request in multicast or broadcast on its own subnetwork. The relay request of the device discovery request is transferred to any communication device on all other subnetworks.
- the communication device relays the device discovery request to an arbitrary communication device on its own subnetwork, and the step of any communication device on its own subnetwork performing multicast or broadcast can be omitted. And search time can be shortened.
- the relay request transfer unit receives a device discovery request transmitted by multicast or broadcast on the communication device on its own subnetwork, A relay request for device discovery request is transmitted to any communication device.
- the communication device powers the communication device on its own subnetwork. While waiting for a response to the device discovery request transmitted by multicast or broadcast on its own subnetwork, device discovery proceeds simultaneously on different networks. This makes it possible to reduce the time it takes when the device does not exist on the local network and is powered.
- the relay request transfer unit stores information related to a communication device, and when receiving a relay request for a device discovery request, determines a transfer destination communication device based on the information related to the communication device.
- the communication device can always send a device discovery request to a device with high processing capability only by multicast or broadcast transmission, and the communication device with low processing capability has no processing load. It is possible to do so. In addition, it is possible to always request multicast communication or broadcast transmission of device discovery requests from different communication devices, and to distribute the processing, so that the network can be stabilized.
- the communication device further includes a relay rejection response receiving unit that receives a rejection response to the relay request for the device discovery request.
- the relay rejection response receiver receives a device discovery request relay request to a communication device that is different from the rejection response transmission source communication device on the same subnetwork as the rejection response transmission source communication device. Forward.
- the communication device when the communication device that has requested the relay of the device discovery request is in a load state and the communication device cannot transmit the device discovery request by multicast or broadcast, the communication device can It is possible to request relaying to a communication device that is not connected and prevent the communication device from becoming unprocessable.
- the present invention is a network composed of a plurality of sub-networks connected via a plurality of NAT devices, and is connected to an arbitrary sub-network in the network and communicates with communication devices on the network. It is also aimed at communication devices that have a connection support server function that connects them, and communication devices that have established communication paths.
- the communication device of the present invention includes a device discovery request transmission unit that multicasts or broadcasts a device discovery request for a desired communication device on its own network. And a relay request transmission unit that transmits a relay request for a device discovery request to a communication device having a connection support server function, and a device discovery response reception unit that receives a device discovery response.
- the device discovery response receiving unit discovers a desired communication device by receiving a device discovery response from the desired communication device or a communication device having a connection support server function.
- the communication device can discover communication devices of different networks.
- the relay request transmission unit relays the device discovery request to the communication device having the connection support server function when the device discovery response receiving unit does not receive the device discovery response to the device discovery request. Send a request.
- the communication device can be used only when there is no desired communication device power on its own network.
- the relay request transmission unit sends a device discovery request relay request to a communication device having a connection support sano function at the same time that the device discovery request transmission unit multicasts or broadcasts a device discovery request to its own network. Send.
- the communication device further includes a relay request processing unit that multicasts or broadcasts a device discovery request on its own network when receiving a device discovery request relay request from a communication device having a connection support server function.
- the relay request processing unit transfers the received device discovery response to the communication device having the connection support server function.
- the communication device discovers the communication device on its own network and transfers the response via the communication device having the connection support server function instead of the communication device of the other network. It is possible to find a communication device on a different network from the relay request transmission source communication device.
- a communication device has sufficient processing capability to receive a device discovery request relay request from a communication device having a connection support server function, and to transmit the device discovery request to the local network by multicast or broadcast. If the relay request processing unit determines that there is no relay request processing unit, the relay request processing unit further includes a relay rejection response transmitting unit that transmits a rejection response to the relay request for the device discovery request to the communication device having the connection support server function.
- the processing load is strong, and if the device discovery request cannot be multicast or broadcast, the communication device may reject the request. It is possible to prevent the processing from becoming impossible.
- a series of processing procedures performed by the communication device described above can also be understood as a method executed by the communication device.
- the present invention may also be a storage medium storing software that implements the above-described method.
- the present invention makes it possible to find a desired communication device in any network on a router multi-stage home network, and to arrange the communication device without special knowledge for the user. It is possible to prevent mistakes. Furthermore, routers in the home network are commercially available and can be used as they are, and only one connection support server function needs to be prepared on the home network. For this reason, the cost required by the user can be reduced.
- FIG. 1 is a diagram showing a configuration example of the entire system according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a configuration example of a connection support server 001 according to Embodiment 1 of the present invention.
- FIG. 3A is a block diagram showing a configuration example of the communication device 101 according to Embodiment 1 of the present invention.
- FIG. 3B is a block diagram showing a configuration example of the communication device 102 according to Embodiment 1 of the present invention.
- FIG. 3C is a block diagram showing a configuration example of communication apparatus 201 according to Embodiment 1 of the present invention.
- FIG. 3D is a block diagram showing a configuration example of the communication device 202 according to Embodiment 1 of the present invention.
- FIG. 4 is a diagram showing a processing procedure for finding a communication device 201 connected to a lower network from a communication device 101 connected to a higher network in the first embodiment of the present invention.
- FIG. 5 shows relaying to any communication device on a different network at the same time that the connection support server 001 receives a device discovery request from the communication device 101 on its own network in Embodiment 1 of the present invention. It is a figure which shows the process sequence at the time of transmitting a request
- FIG. 6 is a diagram showing a processing procedure for finding a communication device 102 connected to an upper network from a communication device 202 connected to a lower network in the first embodiment of the present invention.
- FIG. 7 is a diagram showing a state in which the connection support server 001 receives a device discovery request from the communication device 202 on a different network at the same time as the device is connected to the communication device on its own network in Embodiment 1 of the present invention It is a figure which shows the process sequence when multicasting a discovery request.
- FIG. 8 is a diagram showing a configuration example of the entire system according to Embodiment 2 of the present invention.
- FIG. 9A is a block diagram showing a configuration example of a communication device 301 according to Embodiment 2 of the present invention.
- FIG. 9B is a block diagram showing a configuration example of the communication device 302 according to Embodiment 2 of the present invention.
- FIG. 10 is a diagram showing a processing procedure for finding a communication device 201 connected to a lower network from a communication device 101 connected to a higher network in the second embodiment of the present invention.
- FIG. 11 is a diagram showing a processing procedure for discovering a communication device 102 connected to a higher-level network from communication device 301 connected to a lower-level network in the second embodiment of the present invention.
- FIG. 12 is a diagram showing a configuration example of the entire system according to Embodiment 3 of the present invention.
- FIG. 13 is connected to a lower network in Embodiment 3 of the present invention.
- Tadori FIG. 11 is a diagram showing a processing procedure for finding a communication device 302 connected to a different lower network from the communication device 202.
- FIG. 14 is a diagram showing a configuration example of the entire system according to Embodiment 4 of the present invention.
- FIG. 15 is a block diagram showing a configuration example of a communication device 401 according to Embodiment 4 of the present invention.
- FIG. 16 is a diagram showing a processing procedure for discovering a communication device 302 connected to the private network from the communication device 401 connected to the global network in the fourth embodiment of the present invention.
- FIG. 17A is a diagram showing a home network composed of conventional UPnP compatible devices.
- FIG. 17B is a diagram showing a UPnP-compatible device discovery procedure in a conventional home network.
- FIG. 18A is a diagram showing a home network having a conventional router multi-stage configuration.
- FIG. 18B is a diagram showing a UPnP-compatible device discovery procedure in a conventional home network.
- FIG. 19A is a diagram showing a home network having a router multi-stage configuration in which gateways equipped with the network connection device of Patent Document 1 are arranged.
- FIG. 19B is a diagram showing a processing procedure for performing device discovery by the network connection device and method in Patent Document 1.
- Embodiment 1 of the present invention will be described below with reference to the drawings.
- FIG. 1 is a diagram showing a configuration example of the entire system according to Embodiment 1 of the present invention.
- a global network 00, a private network 01, and a power router 100 are connected.
- the router 100 has a global IP address [IPW100] as the WAN address and a private IP address [IPL100] as the LAN address.
- the private network 01 and the private network 02 are connected via a norator 200.
- the router 200 has a private IP address [IPW200] as a WAN side address and a private IP address [IPL200] as a LAN side address.
- a communication device 101 having a private IP address [IPL101] and a communication device 102 having a private IP address [IPL102] are connected to the private network 01.
- a communication device 201 having a private IP address [IPL201] and a communication device 202 having a private IP address [IPL202] are connected to the private network 02. Yes.
- connection support Sano 001 having a private IP address [IPL001] is connected to the private network 01.
- the connection support Sano 001 establishes a communication path capable of bidirectional communication with all the communication devices connected to the private network 01 and the private network 02.
- FIG. 2 is a block diagram showing a configuration example of the connection support server 001 according to Embodiment 1 of the present invention.
- FIG. 3A is a block diagram showing a configuration example of the communication device 101 according to Embodiment 1 of the present invention.
- FIG. 3B is a block diagram showing a configuration example of the communication device 102 according to Embodiment 1 of the present invention.
- FIG. 3C is a block diagram showing a configuration example of the communication device 201 according to Embodiment 1 of the present invention.
- FIG. 3D is a block diagram showing a configuration example of the communication device 202 according to Embodiment 1 of the present invention.
- connection support server 001 when the connection support server 001 receives a relay request for a device discovery request from an arbitrary communication device, the relay request transfer unit 0011 that forwards the relay request for the device discovery request to a different device; When a device discovery response is received, a device discovery response transfer unit 0012 that forwards the device to the relay request source device and a relay rejection response reception that receives a rejection response to the device discovery request relay request from the communication device that has transmitted the relay request
- a communication path information storage section 0014 for storing communication path information with respect to all communication devices, and a communication section 0015 for performing all communications.
- the communication device 101 sends a device discovery request transmission unit 1011 that multicasts or broadcasts a device discovery request for a desired device to be communicated to its own network, and a connection support server 001.
- a relay request transmission unit 1013 that transmits a relay request for a device discovery request
- a device discovery response receiver 1012 that receives a device discovery response
- a relay request for a device discovery request from the connection support server 001 are received.
- a relay request processing unit 1014 that multicasts or broadcasts a device discovery request on the network, and a communication unit 1015 that performs all communication are provided.
- Communication device 101 is an example For example, it is a device that operates other devices, such as a PC or remote control.
- the communication device 102 receives a device discovery request that is multicast or broadcast on its own network, and determines whether or not the search target included in the received device discovery request is itself.
- a device discovery request receiving unit 1021 receives a device discovery request from the device 102 and determines whether or not the search target included in the received device discovery request is itself.
- a device discovery request receiving unit 1021 receives a device discovery response from the search target is itself.
- a device discovery response transmitting unit 1022 that transmits a device discovery response when the search target is itself
- a communication unit 1023 that performs all communication.
- the communication device 102 is a device on the side operated by other device power, such as a television or a video.
- the communication device 201 receives a device discovery request that is multicast or broadcast on its own network, and determines whether or not the search target included in the received device discovery request is itself.
- the communication device 201 is a device that is operated by other device power, such as a television or a video.
- the communication device 202 sends a device discovery request transmission unit 2021 that multicasts or broadcasts a device discovery request for a desired device to be communicated to its own network to the connection support server 001.
- a relay request transmission unit 2023 for transmitting a device discovery request relay request, a device discovery response reception unit 2022 for receiving a device discovery response, and a device discovery request relay request from the connection support server 001 are received,
- a relay request processing unit 2024 that multicasts or broadcasts a device discovery request on the network and a communication unit 2025 that performs all communication are provided.
- the communication device 202 is a device that operates other devices such as a PC and a remote controller.
- the device discovery request transmission unit 1011 of the communication device 101 multicasts a device discovery request specifying the communication device 201 as a search target to the private network 01 to which the device discovery request transmission unit 1011 is connected via the communication unit 1015. (Step S701). Where private Since the communication device 201 does not exist on the network 01 and the router 200 does not forward the device discovery request to the private network 02, the device discovery response receiving unit 1012 receives the device discovery response from the communication device 201. A timeout occurs (step S702), and device discovery fails (step S703).
- the relay request transmission unit 1013 of the communication device 101 relays the device discovery request to the relay request transfer unit 0011 of the connection support server 001 via the communication unit 1015. Send the request (step S704).
- the relay request transfer unit 0011 that has received a relay request from a communication device on its own network stores all the networks other than the own network (in this case) from the information stored in the communication path information storage unit 0014. An arbitrary device to be connected to each other is selected on the private network 02 (only communication device 202 in this case), and a relay request for device discovery request is transmitted via the communication unit 0015 (step S 705).
- the relay request processing unit 20 24 of the communication device 202 that has received the relay request from the connection support server 001 extracts the search target (communication device 201) from the relay request of the device discovery request (step S706), and the extracted information
- a device discovery request including the message is multicast-transmitted from the device discovery request transmission unit 2021 to the private network 02 via the communication unit 2025 (step S707).
- the device discovery request receiving unit 2011 of the communication device 201 that has received the device discovery request determines that it is specified as the search target, and transmits the device discovery response transmission unit 2012 through the communication unit 2013. Then, a device discovery response is transmitted to relay request processing unit 2024 of communication device 202 (step S708).
- the relay request processing unit 2024 that has received the device discovery response transmits the response to the device discovery response transfer unit 0012 of the connection support server 001 (step S709), and the device discovery response transfer unit 0 012 detects the device discovery.
- the response is transferred to the device discovery response receiving unit 1012 of the communication device 101 (step S710).
- step S711 When device discovery response receiving section 1012 of communication device 101 receives the device discovery response, device discovery of communication device 201 on a different private network is successful (step S711).
- step S 701 the communication device 101 that multicast-transmitted the device discovery request from the device discovery request transmission unit 1011 to its own network simultaneously with the relay request transmission unit 1013 from the connection support server 001 You may send a relay request for device discovery request to relay request forwarding unit 0011! / ⁇ .
- step S701 the connection support Sano 001 receives the device discovery request multicast-transmitted from the communication device 101 on its own network, and at the same time, for any communication device on a different network, You can also send a relay request for device discovery request! / ⁇ . The operation at this time will be described below with reference to FIG.
- device discovery request transmitter 1011 of communication device 101 transmits communication device 201 as a search target on private network 01 to which device discovery request transmitter 1011 of communication device 101 is connected.
- the specified device discovery request is multicasted (step S801).
- the device discovery response receiving unit 1012 receives the device discovery response from the communication device 201. Enter the reception wait state.
- step S801 when a device discovery request in which the communication device power on the own network is also multicast transmitted is received in step S801, the relay request transfer unit 0011 of the connection support server 001 is immediately stored in the communication path information storage unit 0014. Select arbitrary devices to be connected to all the networks other than the own network (in this case, only private network 02) (in this case, referred to as communication device 202), and via communication unit 0015 The device discovery request relay request is transmitted (step S802).
- the relay request processing unit 20 24 of the communication device 202 that has received the relay request from the connection support server 001 extracts the search target (communication device 201) from the relay request of the device discovery request (step S803), and the extracted information
- a device discovery request including the message is multicast transmitted from the device discovery request transmission unit 2022 to the private network 02 via the communication unit 2025 (step S804).
- the device discovery request receiving unit 2011 of the communication device 201 that has received the device discovery request determines that it is designated as a search target, and transmits the device discovery response transmission unit 2012 through the communication unit 2013. Then, a device discovery response is transmitted to relay request processing unit 2024 of communication device 202 (step S805).
- the relay request processing unit 2024 that has received the device discovery response transmits the response to the device discovery response transfer unit 0012 of the connection support server 001 (step S806), and the device discovery response transfer unit 0 012 detects the device discovery.
- the response is transferred to the device discovery response receiving unit 1012 of the communication device 101 (step S807).
- the device discovery response receiving unit 1012 which is waiting to receive a device discovery response from the communication device 201, receives a device discovery response from the connection support server 001, so that communication devices on different private networks are connected. 201 device discovery succeeds (step S808).
- device discovery on the own network allows device discovery to proceed simultaneously on different networks while waiting for a response to a device discovery request that has been multicast sent to the own network. It is possible to reduce the time required when there is no equipment on the top and it is powerful.
- device discovery request transmitter 2021 of communication device 202 passes communication device 102 as a search target on private network 02 to which device discovery request transmitter 2021 of communication device 202 is connected.
- the specified device discovery request is multicasted (step S901).
- the device discovery response receiving unit 2022 receives the device from the communication device 102.
- a discovery response reception timeout occurs (step S902), and device discovery fails (step S903).
- the relay request transmission unit 2023 of the communication device 202 relays the device discovery request to the relay request transfer unit 0011 of the connection support server 001 via the communication unit 2025. Send the request (step S 904).
- the relay request transfer unit 0011 that has received a relay request from a communication device on a different network Then, from the information stored in the communication path information storage unit 0014, select any device to be connected to each of the networks different from the private network 02 (here, only the private network 01) (in this case) A communication device 101 is transmitted, and a relay request for a device discovery request is transmitted via the communication unit 0015 (step S 905).
- the relay request processing unit 10 14 of the communication device 101 that has received the relay request from the connection support server 001 extracts the search target (communication device 102) from the relay request of the device discovery request (step S906), and the extracted information
- a device discovery request including a multicast transmission is transmitted from the device discovery request transmission unit 1011 to the private network 01 via the communication unit 1015 (step S907).
- the device discovery request receiving unit 1021 of the communication device 102 that has received the device discovery request determines that it is specified as a search target, and transmits the device discovery response transmission unit 1022 through the communication unit 1023. Then, a device discovery response is transmitted to the relay request processing unit 1014 of the communication device 101 (step S908).
- the relay request processing unit 1014 that has received the device discovery response transmits the response to the device discovery response transfer unit 0012 of the connection support server 001 (step S909), and the device discovery response transfer unit 0 012 detects the device discovery.
- the response is transferred to the device discovery response receiving unit 2022 of the communication device 202 (step S910).
- Device discovery response receiving section 2022 of communication device 202 receives the device discovery response, whereby device discovery of communication device 102 on a different private network is successful (step S911).
- step S904 the connection support server 001 that has received the relay request for the device discovery request does not transfer the relay request to any device on its own network. May multicast a device discovery request on its own network. The operation at this time will be described below with reference to FIG.
- Steps S1001 to S1004 in FIG. 7 are the same processes as steps S901 to S904 in FIG. 7
- step S1004 the relay request transfer unit 0011 of the connection support server 001 that has received the relay request for the device discovery request receives the search target device (communication device 10) included in the relay request.
- the device discovery request for 2) is multicast on the local network via the communication unit 0015 (step S 1005).
- the device discovery request receiving unit 1021 of the communication device 102 that has received the device discovery request determines that it is designated as the search target, and from the device discovery response transmitting unit 1022 to the communication unit 10.
- a device discovery response is transmitted to the device discovery response transfer unit 0012 of the connection support server 001 (step S1006).
- the device discovery response transfer unit 0012 that has received the device discovery response transmits it to the device discovery response receiver 2022 of the communication device 202 that is the request transmission source via the communication unit 0015 (Step S1).
- the device discovery response receiving unit 2022 of the communication device 202 receives the device discovery response, whereby the device discovery of the communication device 102 on a different private network is successful (step
- connection support server 001 instead of forwarding the relay request to any device on the local network, the connection support server 001 multicasts the device discovery request on the local network, so that The step of relaying a request to an arbitrary device and multicasting that device can be omitted, and the search time can be shortened.
- the relay request transfer unit 0011 of the connection support server 001 that has received the relay request for the device discovery request for the communication device capabilities on different networks is stored in the communication path information storage unit 0014. From the stored information, select any device that connects to all networks (in this case, only private network 01) different from private network 02 (in this case, communication device 101), and set communication unit 0015
- the relay request for the device discovery request is transmitted via the relay device, but at this time, the relay request may always be transmitted to the same communication device. For example, by constantly sending a device discovery request to a device having a high processing capability, it is possible to achieve a low processing capability and no processing load on the device.
- the relay request transfer unit 0011 of the connection support server 001 that has received a relay request for a device discovery request from a communication device on a different network transmits a relay request for the device discovery request to a different communication device each time. May be. This makes it possible to It is possible to disperse the strike transmission and to stabilize the network.
- step S705 in FIG. 4, step S802 in FIG. 5, step S905 in FIG. 6 [communication]
- the communication device that has received the relay request considers its own processing load, and transmits a relay rejection response transmission unit.
- Force A relay rejection response can be transmitted to the relay rejection response receiving unit 0013 of the connection support server 001.
- the relay rejection response receiving unit 0013 that has received the relay rejection response transmits the relay request again to a communication device different from the relay rejection response transmission source device stored in the communication path information storage unit 0014, so that the device relays. This makes it possible to prevent the processing from going out of process.
- the M-SEARCH request specified by UPnP may be used as the message for requesting device discovery, or the message specified by other protocols may be used.
- the transmission of the device discovery request is not limited to multicast, and broadcast or other data transmission methods may be used.
- connection support Sano 001 is connected to the private network 02 by performing the same process as described above, the communication device 101 discovers the communication device 201, and the communication Discovery of the communication device 102 from the device 202 is also possible.
- the communication device is assumed to have established a communication path with the connection support server 001. This is not necessarily limited to this. If at least one communication device has established a communication path with Connection Management Server 001 on the private network, the processing sequence shown in this example relays to the communication device that has established the communication path. By doing so, it is possible to establish a communication path with the connection support server 001 and to discover communication devices.
- FIG. 8 is a diagram showing a configuration example of the entire system according to the second embodiment of the present invention.
- a global network 00, a private network 01, and a power router 100 are connected.
- Router 100 uses a global IP address as the WAN address.
- Less [IPW100] has private IP address [IPL100] as LAN side address
- the router 200 has a private IP address [IPW200] as a WAN side address and a private IP address [IPL200] as a LAN side address.
- the router 300 has a private IP address [IPW300] as a WAN address and a private IP address [IPL300] as a LAN address.
- a communication device 101 having a private IP address [IPL101] and a communication device 102 having a private IP address [IPL102] are connected to the private network 01.
- a communication device 201 having a private IP address [IPL201] and a communication device 202 having a private IP address [IPL202] are connected.
- a communication device 301 having a private IP address [IPL301] and a communication device 302 having a private IP address [IPL302] are connected to the private network 03.
- connection support Sano 001 having the private IP address [IPL001] is connected to the private network 02.
- the connection support Sano 001 establishes a communication path capable of bidirectional communication with all the communication devices connected to the private network 01, the private network 02, and the private network 03.
- connection support server 001 The block diagram showing the configuration of the connection support server 001, the communication device 101, the communication device 102, the communication device 201, and the communication device 202 is the same as that described in the first embodiment.
- FIG. 9A is a block diagram showing a configuration example of the communication device 301 according to Embodiment 2 of the present invention.
- FIG. 9B is a block diagram showing a configuration example of the communication device 302 according to Embodiment 2 of the present invention.
- a communication device 301 includes a device discovery request transmission unit 3011 that multicasts a device discovery request for a desired device to be communicated to its own network, The device discovery response receiver 3012 that receives the device discovery response, the relay request transmission unit 3013 that transmits the relay request for the device discovery request to the connection support server, and the relay request for the device discovery request received from the connection support server In this case, a relay request processing unit 3014 that multicasts a device discovery request on its own network and a communication unit 3015 that performs all communication are provided.
- the communication device 301 is a device that operates other devices such as a PC and a remote controller.
- the communication device 302 receives the device discovery request multicasted on its own network, and determines whether or not the search target included in the received device discovery request is itself.
- the communication device 302 is a device operated from another device such as a television or a video.
- connection support server 001 is connected to the private network 02.
- the device discovery request transmission unit 1011 of the communication device 101 multicasts a device discovery request specifying the communication device 201 as a search target on the private network 01 to which the device discovery request transmission unit 1011 is connected. (Step S1301).
- the device discovery response receiving unit 1012 receives the device from the communication device 201.
- a discovery response reception timeout occurs (step S1302), and device discovery fails (step S1303).
- the relay request transmission unit 1013 of the communication device 101 sends a relay request for device discovery request to the relay request transfer unit 0011 of the connection support server 001 via the communication unit 1015. Is transmitted (step S 1304).
- the relay request transfer unit 0011 that has received a relay request from the communication device 101 on a different network (private network 01) is information stored in the communication path information storage unit 0014. Select any device that connects to each of the networks (in this case, private network 02 and private network 03) different from private network 01 (in this case, communication device 202 and communication device 301). A relay request for a device discovery request is transmitted via the communication unit 0015 (step S 1305).
- the relay request processing unit 20 24 of the communication device 202 that has received the relay request from the connection support server 001 extracts the search target (communication device 201) from the relay request for the device discovery request (step S1306), and the extracted information A device discovery request including a multicast transmission from the device discovery request transmission unit 2021 to the private network 02 via the communication unit 2025 (step S 1307).
- the relay request processing unit 3014 of the communication device 301 that has received the relay request from the connection support server 001 extracts the search target (communication device 201) for the relay request power of the device discovery request (step S1308).
- the device discovery request including the received information is multicast-transmitted on the private network 03 via the device discovery request transmission unit 3011 and the communication unit 3015 (step S 1309).
- Step S1310) since the communication device 201 does not exist on the private network 03 and the router 300 does not forward the device discovery request to the private network 02, a reception timeout of the device discovery response from the communication device 201 occurs ( Step S1310).
- the device discovery request receiving unit 2011 of the communication device 201 that has received the device discovery request multicast-transmitted by the communication device 202 determines that itself is designated as the search target, and the device discovery response transmitting unit.
- a device discovery response is transmitted from 2012 to the relay request processing unit 2024 of the communication device 202 via the communication unit 2013 (step S1311).
- the relay request processing unit 2024 that has received the device discovery response transmits the response to the device discovery response transfer unit 0012 of the connection support server 001 (step S1312), and the device discovery response transfer unit 0012 detects the device discovery.
- the response is transferred to the device discovery response receiving unit 1012 of the communication device 101 (step S 1313).
- the device discovery response receiving unit 1012 of the communication device 101 receives the device discovery response, whereby the device discovery of the communication device 201 on the different private network succeeds (step S1314).
- step S1301 the communication device 101 that multicast-transmitted the device discovery request from the device discovery request transmission unit 1011 to its own network simultaneously with the relay request transmission unit 1013 relays the connection support server 001.
- a relay request for a device discovery request may be transmitted to the request transfer unit 0011. This makes it possible to discover devices on different networks at the same time while waiting for a response when a device that is to be discovered on the local network is strong, and shorten the time to discovery. Become.
- step S1304 the connection support server 001 that has received the relay request for the device discovery request does not transfer the relay request to any device on its own network.
- the device discovery request may be multicast. Since the operation at this time is the same as the processing of FIG. 7 in the first embodiment, the description is omitted. The step of relaying a request to an arbitrary device on the own network and performing multicast by the device. Thus, the search time can be shortened.
- device discovery request transmission unit 3011 of communication device 301 designates communication device 102 as a search target on private network 02 to which device discovery request transmission unit 3011 of communication device 301 is connected.
- a device discovery request is transmitted by multicast (step S1401).
- the device discovery response receiving unit 3 012 receives the device discovery response from the communication device 102.
- Device timeout occurs (step S 1402), and device discovery fails (step S 1403).
- the relay request transmission unit 3013 of the communication device 301 relays the device discovery request to the relay request transfer unit 0011 of the connection support server 001 via the communication unit 3015. Send the request (step S 1404).
- the relay request transfer unit 0011 that receives the relay request from the communication device 301 on a different network (private network 03) is different from the private network 03 among the information stored in the communication path information storage unit 0014. Any device connected to all networks (in this case, private network 01 and private network 02) Is selected (in this case, communication device 101 and communication device 202), and a relay request for device discovery request is transmitted via communication unit 0015 (step S1405).
- the relay request processing unit 10 14 of the communication device 101 that has received the relay request from the connection support server 001 extracts the search target (communication device 102) from the relay request of the device discovery request (step S1406), and the extracted information
- a device discovery request including the message is multicast transmitted from the device discovery request transmission unit 1011 to the private network 01 via the communication unit 1015 (step S 1407).
- the relay request processing unit 2024 of the communication device 202 that has received the relay request from the connection support server 001 retrieves the search target (communication device 102) for the relay request power of the device discovery request (step S1408),
- the device discovery request including the received information is multicast transmitted on the private network 02 via the device discovery request transmission unit 2022 and the communication unit 2025 (step S 1409).
- the communication device 102 does not exist on the private network 02, and the router 200 does not forward the device discovery request to the private network 01, so a reception timeout of the device discovery response from the communication device 102 occurs ( Step S1410).
- the device discovery request receiving unit 1021 of the communication device 102 that has received the device discovery request that the communication device 101 has transmitted by multicast determines that the device itself is designated as the search target, and the device discovery response transmission unit.
- a device discovery response is transmitted from 1022 to the relay request processing unit 1014 of the communication device 101 via the communication unit 1023 (step S 1411).
- the relay request processing unit 1014 that has received the device discovery response transmits the response to the device discovery response transfer unit 0012 of the connection support server 001 (step S1412), and the device discovery response transfer unit 0012 detects the device discovery.
- the response is transferred to the device discovery response receiver 3012 of the communication device 301 (step S 1413).
- the device discovery response receiving unit 3012 of the communication device 301 receives the device discovery response, whereby the device discovery of the communication device 102 on the different private network is successful (step S1414).
- the relay request transfer unit 0011 of the connection support server 001 that has received the relay request for the device discovery request in step S1404 of FIG. From the information stored in the communication path information storage unit 0014, select any device on all networks (in this case, the private network 01 and the private network 02) different from the private network 03 (this In this case, the device discovery request relay request is transmitted via the communication unit 0015. At this time, however, the relay request may be transmitted to the same communication device. For example, it is possible to shorten the search time by always sending device discovery requests to devices with high processing capabilities by multicast transmission.
- the relay request transfer unit 0011 of the connection support server 001 that has received a relay request for a device discovery request from a communication device on a different network may transmit the relay request to a different communication device each time. For this reason, multicast transmission of device discovery requests can be distributed, and network stability can be achieved.
- the communication device that has received the relay request in step S1305 in FIG. 10 and step S1405 in FIG. 11 considers its own processing load from the relay rejection response transmission unit (not shown) to the connection support server. It is also possible to send a relay rejection response to the relay rejection response receiving unit 0013 of 001.
- the relay rejection response receiving unit 0013 that has received the relay rejection response relays the device discovery request by transmitting the relay request again to a communication device that is different from the relay rejection response transmission source device stored in the communication path information storage unit. If a device requesting for a device cannot be sent by multicast while the device is receiving a load, the device cannot be processed due to the power of another processing load. It is possible to prevent falling into a situation.
- an M-SEARCH request specified by UPnP may be used, or a message specified by other protocols may be used.
- the transmission of the device discovery request is not limited to multicast, and broadcast or other data transmission methods may be used.
- connection support system 01 when the connection support system 01 is connected to the private network 02, the communication device 101 to the communication device 302 are connected. It is also possible to discover the communication devices 102 and 302 from the communication device 202.
- connection support Sano 001 when the connection support Sano 001 is connected to the private network 01, the device on the private network 01 discovers the device on the private network 02, 03, the device on the private network 02 uses the private network 01, It is also possible to discover devices on 03 and devices on private networks 03 and devices on private networks 01 and 02.
- the communication devices are all assumed to have established communication paths with the connection support server 001.
- the present invention is not necessarily limited to this. If there is at least one communication device that has established a communication path with the connection management server 001 on the private network, the processing sequence shown in the present embodiment will cause the communication device to establish the communication path. By establishing a connection, it is possible to establish a communication path with the connection support server 001 and discover communication devices.
- FIG. 12 is a diagram showing a configuration example of the entire system according to Embodiment 3 of the present invention.
- a global network 00, a private network 01, and a power router 100 are connected.
- the router 100 has a global IP address [IPW100] as a WAN address and a private IP address [IPL100] as a LAN address.
- the router 200 has a private IP address [IPW200] as a WAN side address and a private IP address [IPL200] as a LAN side address.
- IPW200 private IP address
- IPL200 private IP address
- private network 01 and private network 03 are connected via a norator 300.
- the router 300 has a private IP address [IPW300] as a WAN address and a private IP address [IPL300] as a LAN address.
- a communication device 201 having a private IP address [IPL201] and a communication device 202 having a private IP address [IPL202] are connected to the private network 02.
- a communication device 301 having a private IP address [IPL301] and a communication device 302 having a private IP address [IPL302] are connected to the private network 03.
- connection support Sano 001 having the private IP address [IPL001] is connected to the private network 01.
- the connection support Sano 001 establishes a communication path capable of bidirectional communication with all the communication devices connected to the private network 02 and the private network 03.
- connection support server 001 The block diagrams showing the configurations of the connection support server 001, the communication device 201, the communication device 202, the communication device 301, and the communication device 302 are the same as those described in the first embodiment and the second embodiment. .
- connection support server 001 is connected to the private network 01.
- device discovery request transmission section 2021 of communication device 202 designates communication device 302 as a search target on private network 02 to which it is connected via communication unit 2025.
- a device discovery request is multicast-transmitted (step S 1601).
- the device discovery response receiving unit 2022 receives the device discovery response from the communication device 302. Device timeout occurs (step S1602), and device discovery fails (step S1603).
- the relay request transmission unit 2023 of the communication device 202 relays the device discovery request to the relay request transfer unit 0011 of the connection support server 001 via the communication unit 2025. Send the request (step S 1604).
- the relay request transfer unit 0011 that has received a relay request from a communication device on a different network is stored in the communication path information storage unit 0014, and all information other than the private network 02 is stored. Select any device to be connected to each other network (here, private network 01 and private network 03). (In this case, since there is no communication device on the private network 01, only the communication device 301 is used), and a relay request for the device discovery request is transmitted via the communication unit 0015 (step
- the relay request processing unit 30 14 of the communication device 301 that has received the relay request from the connection support server 001 extracts the search target (communication device 302) from the relay request of the device discovery request (step
- the device discovery request including the extracted information is multicast transmitted from the device discovery request transmission unit 3011 to the private network 03 via the communication unit 3015 (step S 1607).
- the device discovery request receiving unit 3021 of the communication device 302 that has received the device discovery request determines that it is specified for the search target, and transmits the device discovery response transmission unit 3022 through the communication unit 3023. Then, a device discovery response is transmitted to relay request processing unit 3014 of communication device 301 (step S 1608).
- the relay request processing unit 3014 that has received the device discovery response transmits the response to the device discovery response transfer unit 0012 of the connection support server 001 (step S1609), and the device discovery response transfer unit 0012 detects the device discovery.
- the response is transferred to the device discovery response receiving unit 2022 of the communication device 202 (step S 1610).
- the device discovery response receiving unit 2022 of the communication device 202 receives the device discovery response, whereby the device discovery of the communication device 302 on a different private network is successful (step S16l).
- step S1601 the communication device 202 that multicast-transmitted the device discovery request from the device discovery request transmission unit 2021 on its own network simultaneously with the relay request transmission unit 2023 from the connection support server 001.
- a relay request for a device discovery request may be transmitted to the relay request transfer unit 0011. This makes it possible to discover devices on different networks at the same time while waiting for a response when a device that is to be discovered on the local network is strong, and shorten the time to discovery. Become.
- a device discovery request message an M-SEARCH request specified by UPnP may be used, or a message specified by other protocols may be used.
- transmission of a device discovery request is not limited to multicast, and broadcast or other data transmission methods may be used.
- the configuration described in this embodiment is an example, and is not limited to this! /.
- connection support server 001 when the connection support server 001 is connected to the private network 02 by performing the same process as described above, the device power on the private network 02 is also on the private network 03. It is also possible to discover devices. It is also possible to discover devices on the private network 02 from devices on the pipeline network 03.
- connection support server is connected to the private network 03.
- the communication device is assumed to have established a communication path with the connection support server 001. This is not necessarily limited to this. If there is at least one communication device that has established a communication path with the connection management server 001 on the private network, the processing sequence shown in this example will determine whether the communication device has established the communication path. By establishing a connection, it is possible to establish a communication path with the connection support server 001 and discover communication devices.
- FIG. 14 is a diagram showing an example of the overall configuration of a system according to Embodiment 4 of the present invention.
- a global network 00 and a private network 01 are connected via a router 100.
- the router 100 has a global IP address [IPW100] as a WAN address and a private IP address [IPL100] as a LAN address.
- the router 200 has a private IP address [IPW200] as a WAN side address and a private IP address [IPL200] as a LAN side address.
- IPW200 private IP address
- IPL200 private IP address
- private network 01 and private network 03 are connected via a norator 300.
- Router 300 uses a private IP address [I PW300] has a private IP address [IPL300] as the LAN side address.
- a communication device 401 having a global IP address [IPW401] is connected to the global network 00.
- a communication device 201 having a private IP address [IPL201] and a communication device 202 having a private IP address [IPL202] are connected to the private network 02.
- a communication device 301 having a private IP address [IPL301] and a communication device 302 having a private IP address [IPL302] are connected to the private network 03.
- connection support Sano 001 having a private IP address [IPL001] is connected to private network 01.
- the connection support Sano 001 establishes a communication path capable of bidirectional communication with all communication devices connected to the global network 00, the private network 02, and the private network 03.
- connection support server 001 The block diagrams showing the configurations of the connection support server 001, the communication device 201, the communication device 202, the communication device 301, and the communication device 302 are the same as those described in the first embodiment and the second embodiment. .
- FIG. 15 is a block diagram showing a configuration example of the communication device 401 according to Embodiment 4 of the present invention.
- a communication device 401 includes a device discovery request transmission unit 4011 that multicasts a device discovery request for a desired device desired to communicate on its own network, and a device discovery response reception unit 4012 that receives a device discovery response.
- a relay request transmission unit 4013 that transmits a relay request for a device discovery request to the connection support server and a relay request for the device discovery request from the connection support server are received, the device discovery request is multicast on the local network.
- a relay request processing unit 4014 that performs communication and a communication unit 4015 that performs all communication.
- the communication device 401 is a mobile terminal having a communication function, such as a mobile phone or a PDA, and is a device that operates other devices.
- the communication device 401 having a global IP address cannot transmit a request by multicast on the global network. Therefore, the device discovery request transmission unit 4011 and the relay request processing unit are not necessarily used. It is not necessary to have 4014.
- a device discovery procedure when the connection support server 001 is connected to the private network 01 will be described.
- the device discovery request is not multicast transmitted, and the relay request transmission unit 4013 of the communication device 401 is connected via the communication unit 4015.
- a relay request for a device discovery request is transmitted to the relay request transfer unit 0011 of the support server 001 (step S1901).
- the relay request transfer unit 0011 that has received a relay request from a communication device on a different network (groove network 00) stores the global network 00 from the information stored in the communication path information storage unit 0014. Select any device that connects to all other networks (in this case, private network 01, private network 02, and private network 03) (in this case, there is no communication device on private network 01, so communication The device 201 or 301 is selected), and a relay request for the device discovery request is transmitted via the communication unit 0015 (step S 1902).
- the relay request processing unit 20 24 of the communication device 202 that has received the relay request from the connection support server 001 extracts the search target (communication device 302) from the relay request of the device discovery request (step S1903), and the extracted information
- a device discovery request including the message is multicast transmitted from the device discovery request transmission unit 2021 to the private network 02 via the communication unit 2025 (step S 1904).
- the device discovery request receiving unit 2011 of the communication device 201 that has received the device discovery request does not transmit the device discovery response because it is specified as the search target.
- the relay request processing unit 30 14 of the communication device 301 that has received the relay request from the connection support server 001 extracts the search target (communication device 302) from the relay request of the device discovery request (step S1905), and the extracted information A device discovery request including a multicast transmission from the device discovery request transmission unit 3011 to the private network 03 via the communication unit 3015 (step S 1906).
- the device discovery request receiving unit 3021 of the communication device 302 that has received the device discovery request receives the search request. And the device discovery response transmission unit 3022 transmits the device discovery response to the relay request processing unit 3014 of the communication device 301 via the communication unit 3023 (step S 1907). ).
- the relay request processing unit 3014 that has received the device discovery response transmits the response to the device discovery response transfer unit 0012 of the connection support server 001 (step S 1908), and the device discovery response transfer unit 0012 detects the device discovery.
- the response is transferred to the device discovery response receiver 4012 of the communication device 401 (step S 1909).
- step S1910 When device discovery response receiving section 4012 of communication device 401 receives the device discovery response, device discovery of communication device 302 on a different private network is successful (step S1910).
- the M-SEARCH request specified in UPnP may be used as the device discovery request message, or the message specified in other protocols may be used.
- the transmission of the device discovery request is not limited to multicast, and broadcast or other data transmission methods may be used.
- connection support system 01 when the connection support system 01 is connected to the private network 02, the device on the global network 00 is privately connected. It is also possible to discover devices on network 02 or private network 03. In addition, devices on the private network 02 or the private network 03 can also discover devices on the global network 00.
- connection support server is connected to the private network 03.
- the communication device 401 on the global network 00 has a global IP address and is directly connected to the global network 00! /, But a router having a global IP address, etc. The same procedure can be used to discover devices even if they have a private IP address.
- connection support server 001 all communication devices establish communication paths with the connection support server 001.
- the power that is a precondition is not necessarily limited to this.
- the communication device establishes a communication path with the connection support server 001 and relays it to the communication device, thereby connecting to the same network as the communication device and supporting connection. Establishing a communication path with the server 001 makes it possible to discover communication devices.
- the communication device of the present invention is useful for discovering devices on different networks in a network having a router multi-stage configuration composed of a plurality of routers.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Automation & Control Theory (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
- Computer And Data Communications (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008508496A JP4862039B2 (ja) | 2006-03-30 | 2007-03-19 | 接続支援サーバ、及び通信機器 |
US12/293,859 US7886078B2 (en) | 2006-03-30 | 2007-03-19 | Connection support server and communication apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-093991 | 2006-03-30 | ||
JP2006093991 | 2006-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007114035A1 true WO2007114035A1 (ja) | 2007-10-11 |
Family
ID=38563304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/055528 WO2007114035A1 (ja) | 2006-03-30 | 2007-03-19 | 接続支援サーバ、及び通信機器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7886078B2 (ja) |
JP (1) | JP4862039B2 (ja) |
CN (1) | CN101405999A (ja) |
WO (1) | WO2007114035A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013232221A (ja) * | 2008-03-03 | 2013-11-14 | Ricoh Co Ltd | 機器管理システム、機器管理システムの制御方法、及び機器情報取得プログラム |
JP2015537263A (ja) * | 2012-08-27 | 2015-12-24 | テンセント テクノロジー (シェンツェン) カンパニー リミテッド | デジタルテレビ端末と情報を共有するための方法、端末、及びシステム |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114697880B (zh) * | 2020-12-31 | 2023-05-12 | 华为技术有限公司 | 跨网段发现的方法、路由设备及系统 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003264570A (ja) * | 2002-03-07 | 2003-09-19 | Ricoh Co Ltd | データ取得装置、データ取得方法、該データ取得方法を実行するプログラムを記録した記録媒体、および通信装置 |
JP2007097057A (ja) * | 2005-09-30 | 2007-04-12 | Brother Ind Ltd | サーバ装置、機器情報提供方法、プログラム、ネットワークシステム、及び、機器共用化方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010033554A1 (en) * | 2000-02-18 | 2001-10-25 | Arun Ayyagari | Proxy-bridge connecting remote users to a limited connectivity network |
US7170857B2 (en) * | 2001-08-10 | 2007-01-30 | Strix Systems, Inc. | Virtual linking using a wireless device |
JP2003111156A (ja) * | 2001-09-27 | 2003-04-11 | Toshiba Corp | デジタル家電機器 |
US7962605B2 (en) * | 2001-11-20 | 2011-06-14 | Microsoft Corporation | Distributed device discovery framework for a network |
JP4232550B2 (ja) * | 2002-07-01 | 2009-03-04 | 日本電気株式会社 | ネットワーク情報検出装置および方法 |
US7385973B1 (en) * | 2003-02-21 | 2008-06-10 | Nortel Networks Limited | Method and apparatus for VLAN ID discovery |
JP3798754B2 (ja) * | 2003-03-13 | 2006-07-19 | インターナショナル・ビジネス・マシーンズ・コーポレーション | ルータを介して接続されたサブネットワーク間のブロードキャスト |
US7633948B2 (en) * | 2003-07-07 | 2009-12-15 | Panasonic Corporation | Relay device and server, and port forward setting method |
JP2007151006A (ja) * | 2005-11-30 | 2007-06-14 | Fujitsu Ltd | 通信システムおよび通信端末装置 |
-
2007
- 2007-03-19 JP JP2008508496A patent/JP4862039B2/ja active Active
- 2007-03-19 WO PCT/JP2007/055528 patent/WO2007114035A1/ja active Application Filing
- 2007-03-19 CN CN200780009982.9A patent/CN101405999A/zh active Pending
- 2007-03-19 US US12/293,859 patent/US7886078B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003264570A (ja) * | 2002-03-07 | 2003-09-19 | Ricoh Co Ltd | データ取得装置、データ取得方法、該データ取得方法を実行するプログラムを記録した記録媒体、および通信装置 |
JP2007097057A (ja) * | 2005-09-30 | 2007-04-12 | Brother Ind Ltd | サーバ装置、機器情報提供方法、プログラム、ネットワークシステム、及び、機器共用化方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013232221A (ja) * | 2008-03-03 | 2013-11-14 | Ricoh Co Ltd | 機器管理システム、機器管理システムの制御方法、及び機器情報取得プログラム |
JP2015537263A (ja) * | 2012-08-27 | 2015-12-24 | テンセント テクノロジー (シェンツェン) カンパニー リミテッド | デジタルテレビ端末と情報を共有するための方法、端末、及びシステム |
Also Published As
Publication number | Publication date |
---|---|
CN101405999A (zh) | 2009-04-08 |
US20090037528A1 (en) | 2009-02-05 |
JPWO2007114035A1 (ja) | 2009-08-13 |
JP4862039B2 (ja) | 2012-01-25 |
US7886078B2 (en) | 2011-02-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8799485B2 (en) | Methods and apparatus for establishing network connections using an inter-mediating device | |
CN101212384B (zh) | 实现家庭网络互联的方法、系统及设备 | |
WO2006095391A1 (ja) | パケット中継装置 | |
JP2005526450A (ja) | 装置同士の動的なネットワーク構成と資源共用の実現方法 | |
WO2006003874A1 (ja) | 通信装置、通信設定方法、通信設定プログラム及び通信設定プログラムを記録した記録媒体 | |
JP2005526450A6 (ja) | 装置同士の動的なネットワーク構成と資源共用の実現方法 | |
JP2005051754A (ja) | 無線パーソナルエリアネットワークにおけるリモートサービスの利用可能性を判定する距離アウェアサービスディスカバリメカニズム | |
WO2008095127A2 (en) | A hybrid wired and wireless universal access network | |
EP3753232B1 (en) | Cloud access to local network addresses | |
KR20190030653A (ko) | 네트워크 디바이스 간에 네트워크 클러스터를 구축하기 위한 방법 | |
EP2369791B1 (en) | Apparatus and method for establishing connections with a plurality of virtual networks | |
JPWO2007114251A1 (ja) | 通信機器、通信機器が実行する方法、及びその方法を実装したソフトウェアを格納した記憶媒体 | |
CN106416146B (zh) | 通信装置、通信方法和通信系统 | |
WO2016098275A1 (ja) | 通信方法 | |
KR100785482B1 (ko) | 한 개 이상의 서브 네트워크간 컴포넌트를 디스커버리 하는방법 및 그 장치 | |
CN114172750A (zh) | 基于加密机制的网络通信方法、装置及存储介质 | |
JP2007521763A (ja) | サービス中継サブネット間マルチキャスト−ネットワーク基盤に依らないサブネット横断マルチキャスト解決策 | |
EP2811694B1 (en) | Method and apparatus for transmitting and receiving service in wireless communication system | |
WO2007114035A1 (ja) | 接続支援サーバ、及び通信機器 | |
JP4683223B2 (ja) | 広告・検索エージェント | |
WO2009040333A2 (en) | Data transmission network, method, network element and program | |
JP6802530B2 (ja) | 通信方法 | |
KR100677212B1 (ko) | 원격 네트워크 내의 기기 검색 시스템 및 방법 | |
JP2007174583A (ja) | ネットワーク中継装置 | |
JP2013135273A (ja) | 無線通信装置、無線通信方法および無線通信プログラム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07738973 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12293859 Country of ref document: US Ref document number: 200780009982.9 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008508496 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07738973 Country of ref document: EP Kind code of ref document: A1 |