WO2022209803A1 - 通信装置、通信システム、及び、通信方法 - Google Patents

通信装置、通信システム、及び、通信方法 Download PDF

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Publication number
WO2022209803A1
WO2022209803A1 PCT/JP2022/011177 JP2022011177W WO2022209803A1 WO 2022209803 A1 WO2022209803 A1 WO 2022209803A1 JP 2022011177 W JP2022011177 W JP 2022011177W WO 2022209803 A1 WO2022209803 A1 WO 2022209803A1
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WO
WIPO (PCT)
Prior art keywords
communication
communication device
connection
partner
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/011177
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English (en)
French (fr)
Japanese (ja)
Inventor
紘也 高田
尚志 水本
敦 鴨居
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
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NEC Corp
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Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to US18/274,373 priority Critical patent/US20240306012A1/en
Priority to JP2023510859A priority patent/JP7643533B2/ja
Publication of WO2022209803A1 publication Critical patent/WO2022209803A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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
    • H04L45/12—Shortest path evaluation
    • H04L45/122—Shortest path evaluation by minimising distances, e.g. by selecting a route with minimum of number of hops
    • 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
    • H04L45/20—Hop count for routing purposes, e.g. TTL
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

Definitions

  • the present invention relates to a communication device, a communication system, and a communication method that perform communication using a directional communication medium.
  • Patent Literature 1 discloses a communication system that performs multi-hop communication of data using a relay device that forms a subnetwork with directional millimeter waves and a connection terminal that connects to the subnetwork.
  • a directional communication medium can be expected to achieve large-capacity and low-delay communication due to its high frequency, but it is also susceptible to obstructions and disturbances due to its directivity.
  • One aspect of the present invention has been made in view of the above problems, and an example of its purpose is to provide a technique for realizing a robust communication network using a directional communication medium.
  • a communication device includes one or more communication means configured to be able to transmit and receive a directional communication medium, and one or more communication partners via the one or more communication means. , providing means for providing usage information related to usage of connection; acquisition means for acquiring relevant information related to the one or more communication partners from the one or more communication partners as a response to the usage information; determining means for determining whether or not to connect with the communication partner by referring to related related information.
  • a communication device relates to one or more communication means configured to be capable of transmitting/receiving a directional communication medium, and one or more communication partners via the one or more communication means.
  • acquisition means for acquiring related information; and determination means for determining one or more connection partners by the one or more communication means, wherein the determination means determines the number of hops included in the communication partner related information. By referring to the information, it is determined to connect with a communication partner with a smaller number of hops to the connection reference point.
  • a communication system includes a plurality of communication devices, and at least some of the plurality of communication devices are configured to be capable of transmitting and receiving a directional communication medium.
  • a providing means for providing usage information regarding usage of connection to one or more communication partners via said one or more communication means; and a response to said usage information, said one Alternatively, acquisition means for acquiring relevant information related to the communication partners from a plurality of communication partners, and determining means for determining whether or not to connect to the communication partners by referring to the relevant information related to the communication partners. It has
  • a communication system includes a plurality of communication devices, and at least some of the plurality of communication devices are configured to be capable of transmitting and receiving a directional communication medium.
  • acquisition means for acquiring relevant information related to one or more communication partners by the one or more communication means; and one or more connection partners by the one or more communication means.
  • determining means for determining, the determining means refers to hop count information included in the related information of the communication partner, and determines to connect to the communication partner with a smaller number of hops to the connection reference point. .
  • a communication method provides usage information about the purpose of connection to one or more communication partners via one or more communication means configured to be able to transmit and receive a directional communication medium. obtaining relevant information related to the communication partner from the one or more communication partners in response to the usage information; referring to the relevant information related to the communication partner; determining whether to connect with the communication partner.
  • a communication method acquires related information related to one or more communication partners by one or more communication means configured to be able to transmit and receive a directional communication medium. , determining one or more connection partners by the one or more communication means, and in the determining step, referring to hop count information included in the related information of the communication partners, determining the distance to the connection reference point It decides to connect with a communication partner with a lower number of hops.
  • FIG. 1 is a block diagram showing the configuration of a communication device according to exemplary embodiment 1 of the present invention
  • FIG. Fig. 3 is a flow diagram showing the flow of a communication method according to exemplary embodiment 1 of the present invention
  • 1 is a block diagram showing the configuration of a communication system according to exemplary embodiment 1 of the present invention
  • FIG. FIG. 4 is a block diagram showing the configuration of a communication device according to exemplary embodiment 2 of the present invention
  • FIG. 4 is a flow diagram illustrating the flow of a communication method according to exemplary embodiment 2 of the present invention
  • FIG. 4 is a block diagram showing the configuration of a communication system according to exemplary embodiment 2 of the present invention
  • FIG. 10 is a block diagram showing the configuration of a communication device according to exemplary Embodiment 3 of the present invention
  • FIG. 7 is a flow diagram illustrating the flow of a communication method according to exemplary embodiment 3 of the present invention
  • FIG. 10 is a block diagram showing the configuration of a communication system according to exemplary Embodiment 3 of the present invention
  • FIG. 11 is a block diagram showing the configuration of a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a sequence diagram showing a first example of a flow of processing from scanning to connection establishment in a communication system according to illustrative Embodiment 4 of the present invention
  • FIG. 20 is a sequence diagram showing a second example of the flow of processing from scanning to connection establishment in the communication system according to illustrative Embodiment 4 of the present invention
  • FIG. 21 is a sequence diagram showing a third example of the flow of processing from scanning to connection establishment in the communication system according to illustrative Embodiment 4 of the present invention
  • FIG. 21 is a sequence diagram showing a third example of the flow of processing from scanning to connection establishment in the communication system according to illustrative Embodiment 4 of the present invention
  • FIG. 11 is a diagram showing a configuration example of a communication system according to exemplary embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Em
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 11 is a diagram for explaining an example of processing by a communication device according to exemplary Embodiment 4 of the present invention
  • FIG. 2 is a block diagram showing the hardware configuration of a computer that is an implementation example of a communication device according to each exemplary embodiment of the present invention
  • FIG. 1 is a block diagram showing the configuration of the communication device 10.
  • the communication device 10 according to this exemplary embodiment comprises a communication section 11 , an identification section 12 and a connection establishment section 13 .
  • the communication unit 11, the identification unit 12, and the connection establishment unit 13 are one implementation example of communication means, identification means, and connection establishment means in the scope of claims.
  • the communication unit 11 is configured to be able to transmit and receive a directional communication medium.
  • the number of communication units 11 included in the communication device 10 does not limit this exemplary embodiment, and the communication device 10 can be configured to include one or more communication units 11 .
  • Each communication unit 11 is configured to be able to transmit and receive directional communication media as described above.
  • the specific configuration of the communication unit 11 does not limit this exemplary embodiment, but as an example, a transmission unit that transmits a directional communication medium and a and a receiver.
  • the communication unit 11 may be configured to include an integrated transmission/reception unit that transmits and receives a directional communication medium.
  • Electromagnetic waves in this frequency range may include millimeter waves, sub-millimeter waves, infrared light, visible light, ultraviolet light, and the like.
  • the communication unit 11 uses the directional communication medium for communication by orienting the electromagnetic waves in the frequency domain within a predetermined angular range and transmitting the electromagnetic waves.
  • the specific configuration for the communication unit 11 to direct the electromagnetic waves in the frequency domain does not limit this exemplary embodiment.
  • the communication unit 11 ⁇ Beam forming antenna that directs millimeter waves and sub-millimeter waves within a specified angle range ⁇ Collimator that collimates infrared light, visible light, or ultraviolet light ⁇ Laser of infrared light, visible light, or ultraviolet light
  • a configuration including a laser oscillator or the like for generating power can be employed.
  • the communication unit 11 directs and sends out electromagnetic waves in the above-mentioned frequency range, which is a communication medium, the energy density of the communication medium increases, so communication can be performed with a distant communication partner using the communication medium. .
  • the identification unit 12 identifies one or more connection partner candidates by scanning using the communication unit 11 .
  • the specifying unit 12 specifies one or more connection partner candidates by transmitting or receiving scan beams using the communication unit 11 .
  • scanning using the communication unit 11 scanning using the above-described directional communication medium is executed.
  • scanning in this exemplary embodiment refers, by way of example, to a search performed to identify one or more potential connection partners.
  • the word scan is not intended to prescribe a specific scan order or the like.
  • ⁇ Send a scan beam from the communication unit 11 to the scan range ⁇ Send a scan beam from the communication unit 11 to the scan range and receive a response beam that is a response to the scan beam ⁇ Sent from another device
  • the communication unit 11 receiving a scan beam At least one of: the communication unit 11 receiving a scan beam; and the communication unit 11 receiving a scan beam transmitted from another device and transmitting a response beam in response to the scan beam be
  • Scanning by the identifying unit 12 includes, for example, searching for connection partner candidates whose positions are not known in advance. More specifically, as an example, the scanning by the identification unit 12 includes searching for a connection partner candidate whose direction from the communication device 10 as a starting point is not known in advance. In other words, this includes searching for connection partner candidates for which at least one of the azimuth angle, elevation angle, and depression angle with respect to the communication device 10 is not known in advance.
  • the identifying unit 12 When searching for one or more connection partner candidates whose positions are not known in advance as described above, the identifying unit 12 identifies the positions of the one or more connection partner candidates by scanning using the communication unit 11. do. More specifically, as an example, the identification unit 12 identifies the direction from the communication device 10 for the one or more connection partner candidates by scanning using the communication unit 11 . In other words, the specifying unit 12 specifies at least one of the azimuth angle, elevation angle, and depression angle with respect to the communication device 10 for the one or more connection partner candidates by scanning using the communication unit 11 .
  • connection partner candidates specified by the specifying unit 12 are not limited to the communication devices included in the scanning range of the scanning using the communication unit 11 .
  • the specifying unit 12 refers to the response signal from the communication device included in the scan range of the scan using the communication unit 11, and identifies the communication device specified by the response signal and the communication device outside the scan range. , can also be specified as a connection partner candidate.
  • the communication device B whose position is specified by the response signal, and the communication outside the scan range Device B can also be identified as a connection partner candidate.
  • connection establishment unit 13 establishes a connection with one or more connection partner candidates identified by the identification unit 12 . Also, the connection establishment unit 13 generates one or more communication paths in the mesh network by establishing the connection.
  • the connection is established by the connection establishment unit 13 by using the same communication unit as the one or more communication units 11 used by the identification unit 12 for scanning, among the one or more communication units 11 included in the communication device 10. Alternatively, a communication unit partially or wholly different from the one or a plurality of communication units 11 used for scanning by the specifying unit 12 may be used.
  • connection establishment unit 13 establishes a directional connection with one or more connection partner candidates identified by the identification unit 12 by means of one or more communication units 11 included in the communication device 10.
  • a communication medium is used to establish a connection.
  • connection establishment processing by the connection establishment unit 13 does not limit this exemplary embodiment, the following processing A is included as an example.
  • the communication unit 11 of the communication device 10 transmits a directional communication medium to the connection partner candidate identified by the identification unit 12
  • connection establishment process may include the following process B in addition to the process A described above.
  • connection partner candidate transmits a directional communication medium to the communication device 10
  • the communication unit 11 of the communication device 10 transmits the directional communication medium.
  • the communication unit 11 of the communication device 10 may be configured to transmit connection start information for starting connection according to a specific protocol to the connection partner candidate using a directional communication medium.
  • the communication unit 11 of the communication device 10 may be configured to receive connection acceptance information according to a specific protocol from the connection partner candidate via a directional communication medium.
  • connection initiation information may include identification information for identifying the communication device 10 from other devices, and the connection acceptance information may include identification information for identifying connection partner candidates from other devices. It may be configured to include identification information.
  • connection establishment process may include the following processes C and D in addition to the processes A and B described above.
  • connection partner candidate refers to the connection start information transmitted by the communication unit 11 of the communication device 10 via the directional communication medium in the processing A, and the connection partner candidate transmits the identification information of the communication device 10 to the connection start information. To be registered in the storage unit provided by the partner candidate
  • the communication device 10 refers to the connection approval information received by the communication unit 11 of the communication device 10 through the directional communication medium in the processing B, and stores the connection partner candidates in the storage unit of the communication device 10 itself. to register the identification information of
  • the communication device 10 As mentioned above, the communication device 10 according to this exemplary embodiment: - One or a plurality of communication units 11 configured to be capable of transmitting/receiving a directional communication medium; a specifying unit 12 that specifies one or more connection partner candidates by executing a scan using one or more communication units 11; A configuration including a connection establishing unit 13 that establishes a connection with one or more connection partner candidates specified by the specifying unit 12 is employed.
  • connection partner candidate whose position is not known in advance can be specified by executing scanning using the communication unit 11 . Then, communication can be established with the specified connection partner candidate.
  • directional communication media can achieve high-capacity and low-delay communication, but because they are directional, they are susceptible to obstructions and disturbances.
  • the communication device 10 it is possible to make adaptive changes including addition of communication devices and change of positions in a network using a directional communication medium. It is possible to construct a network that is not easily affected by obstacles, disturbances, and the like.
  • the communication device 10 according to this exemplary embodiment, it is possible to realize a robust communication network using a directional communication medium.
  • FIG. 2 is a flow diagram illustrating the flow of communication method S10 in accordance with the exemplary embodiment. As shown in FIG. 2, the communication method S10 includes steps S12 and S13.
  • Step S12 First, in step S ⁇ b>12 , the identification unit 12 identifies one or more connection partner candidates by executing a scan using the communication unit 11 .
  • the scan using the communication unit 11 the scan using the above-described directional communication medium is executed. Since the specific processing contents by the identifying unit 12 have been described above, the description thereof is omitted here.
  • connection establishment unit 13 establishes a connection with one or more connection partner candidates identified by the identification unit 12 .
  • the connection is established by the connection establishment unit 13 by using the same communication unit as the one or more communication units 11 used by the identification unit 12 for scanning, among the one or more communication units 11 included in the communication device 10.
  • a communication unit partially or wholly different from the one or a plurality of communication units 11 used for scanning by the specifying unit 12 may be used. Since the specific processing contents of the connection establishing unit 13 have been described above, the description thereof is omitted here.
  • the communication device 10 As mentioned above, the communication device 10 according to this exemplary embodiment: Identifying one or more connection partner candidates by executing a scan using one or more communication units 11 configured to be able to transmit and receive a directional communication medium (S12); Establishing a connection with one or more identified connection partner candidates (S13).
  • connection partner candidate whose position is not known in advance can be identified by executing a scan using the communication unit 11. Then, communication can be established with the specified connection partner candidate.
  • FIG. 3 is a block diagram showing an example of the configuration of the communication system 1 according to this exemplary embodiment.
  • the communication system 1 includes, as an example, a first communication device 10-1, a second communication device 10-2, a third communication device 10-3, and a fourth communication device. I'm in.
  • the configuration example shown in FIG. 3 does not limit the communication system 1 according to this exemplary embodiment.
  • the communication system 1 according to this exemplary embodiment may be configured to include five or more communication devices, or may be configured to include three or less communication devices.
  • a first communication device 10-1, a second communication device 10-2, a third communication device 10-3, and a fourth communication device 10-4 each It has the same configuration as the communication device 10 described with reference.
  • the communication system 1 including a plurality of communication devices (for example, a first communication device 10-1, a second communication device 10-2, a third communication device 10-3, and a fourth communication device), At least one of the plurality of communication devices, one or a plurality of communication units 11 configured to be capable of transmitting and receiving a directional communication medium; a specifying unit 12 that specifies one or more connection partner candidates by executing a scan using the one or more communication means; A connection establishing unit 13 for establishing a connection with one or more connection partner candidates identified by the identifying means.
  • a plurality of communication devices for example, a first communication device 10-1, a second communication device 10-2, a third communication device 10-3, and a fourth communication device
  • At least one of the plurality of communication devices one or a plurality of communication units 11 configured to be capable of transmitting and receiving a directional communication medium
  • a specifying unit 12 that specifies one or more connection partner candidates by executing a scan using the one or more communication means
  • a connection establishing unit 13
  • connection partner candidate whose position is not known in advance can be specified by executing a scan using the communication unit 11 . Then, communication can be established with the specified connection partner candidate.
  • the communication system 1 it is possible to realize a robust communication network using a directional communication medium, like the communication device 10 according to this exemplary embodiment.
  • FIG. 4 is a block diagram showing the configuration of the communication device 20.
  • the communication device 20 according to this exemplary embodiment comprises a communication unit 21, a providing unit 22, an acquiring unit 23 and a determining unit 24.
  • FIG. 21 is a block diagram showing the configuration of the communication device 20.
  • the communication device 20 according to this exemplary embodiment comprises a communication unit 21, a providing unit 22, an acquiring unit 23 and a determining unit 24.
  • the communication unit 21, the provision unit 22, the acquisition unit 23, and the determination unit 24 are implementation examples of the communication means, the provision means, the acquisition means, and the determination means in the claims.
  • the communication unit 21 is configured to be able to transmit and receive a directional communication medium.
  • the number of communication units 21 included in the communication device 20 does not limit this exemplary embodiment, and the communication device 20 can be configured to include one or more communication units 21 .
  • the communication unit 21 has the same configuration as the communication unit 11 according to exemplary embodiment 1, so the description thereof is omitted here.
  • the providing unit 22 provides usage information regarding usage of connection to one or more communication partners via the one or more communication means.
  • the providing unit provides information regarding whether the usage of the connection is the first usage or the second usage to one or more communication partners via the one or more communication means.
  • the first use refers to when the connection is used for an access link
  • the second use refers to when the connection is used for a backbone link.
  • an access link mainly refers to a connection route used for exchanging data between edge terminals included in the target communication system.
  • a backbone link mainly refers to a connection path used for exchanging data between communication devices other than edge terminals included in a target communication system. Even a backbone link may function as an access link depending on the situation.
  • the acquisition unit 23 acquires, from the one or more communication partners, related information related to the communication partners. For example, when the usage information is used as an access link, the related information acquired as a response to the usage information includes the connection line quality of the connection involving the communication device, the number of connection interruptions, and the connection delay time. etc. is included. Further, related information acquired as a response to the usage information includes information regarding the number of established connections involving the communication partner when the usage information indicates usage as a backbone link.
  • the determination unit 24 refers to related information related to the communication partner and determines whether or not to connect with the communication partner.
  • the specific determination processing by the determination unit 24 does not limit this exemplary embodiment.
  • the decision unit 24 decides to establish a connection with a communication device that has better line quality, fewer interruptions, and a shorter delay time.
  • the determining unit 24 may be configured to determine to establish a connection with a communication device with a large number of established connections involving a communication partner.
  • the communication device 20 As mentioned above, the communication device 20 according to this exemplary embodiment: - One or a plurality of communication units 21 configured to be capable of transmitting/receiving a directional communication medium; - A providing unit 22 that provides usage information related to usage of connection to one or more communication partners via the one or more communication means; an acquisition unit 23 that acquires, from the one or more communication partners, related information related to the communication partner as a response to the usage information; A determination unit 24 that refers to related information related to the communication partner and determines whether or not to connect with the communication partner.
  • the communication device 20 it is possible to configure a suitable communication path according to the purpose of connection. Therefore, according to the communication device 20 according to this exemplary embodiment, it is possible to realize a robust communication network using a directional communication medium.
  • FIG. 5 is a flow diagram illustrating the flow of communication method S20 according to the exemplary embodiment. As shown in FIG. 5, the communication method S20 includes steps S21, S22 and S23.
  • Step S22 First, in step S22, the determining unit 24 provides usage information regarding the usage of connection to one or more communication partners via one or more communication means.
  • usage information has been described above, so a description thereof will be omitted here.
  • step S23 the acquisition unit 23 acquires related information related to the communication partner from the one or more communication partners as a response to the usage information. Since the specific processing contents of the acquisition unit 23 have been described above, the description thereof is omitted here.
  • the communication method S20 comprises: - Providing usage information regarding the usage of connection to one or more communication partners via one or more communication means configured to be able to transmit and receive a directional communication medium (step S22); - Acquiring, from the one or more communication partners, related information related to the communication partners as a response to the usage information (step S23); - determining whether or not to connect with the communication partner by referring to relevant information related to the communication partner (step S24).
  • the communication method S20 it is possible to configure a suitable communication path according to the purpose of connection. Therefore, according to the communication method S20 according to this exemplary embodiment, a robust communication network using a directional communication medium can be realized.
  • FIG. 6 is a block diagram showing an example of the configuration of the communication system 2 according to this exemplary embodiment.
  • the communication system 2 includes, for example, a first communication device 20-1, a second communication device 20-2, a third communication device 20-3, and a fourth communication device. I'm in.
  • the configuration example shown in FIG. 6 does not limit the communication system 2 according to this exemplary embodiment.
  • the communication system 2 according to this exemplary embodiment may be configured with five or more communication devices, or may be configured with three or less communication devices.
  • the first communication device 20-1, the second communication device 20-2, the third communication device 20-3, and the fourth communication device 20-4 each have the It has the same configuration as the communication device 20 described with reference.
  • the communication system 2 including a plurality of communication devices (for example, a first communication device 20-1, a second communication device 20-2, a third communication device 20-3, and a fourth communication device), At least one of the plurality of communication devices, Provision of providing usage information relating to usage of connection to one or more communication means configured to be capable of transmitting/receiving a directional communication medium, and one or more communication partners using the one or more communication means acquisition means for acquiring relevant information related to the communication partner from the one or more communication partners as a response to the usage information; and determining means for determining whether or not to connect with the other party.
  • a plurality of communication devices for example, a first communication device 20-1, a second communication device 20-2, a third communication device 20-3, and a fourth communication device
  • Provision of providing usage information relating to usage of connection to one or more communication means configured to be capable of transmitting/receiving a directional communication medium, and one or more communication partners using the one or more communication means acquisition means for acquiring relevant information related to
  • the communication system 2 According to the communication system 2 according to this exemplary embodiment, it is possible to configure a suitable communication path according to the purpose of connection. Therefore, according to the communication system 2 according to this exemplary embodiment, a robust communication system 2 using a directional communication medium can be realized.
  • FIG. 7 is a block diagram showing the configuration of the communication device 30.
  • the communication device 30 according to this exemplary embodiment comprises a communication section 31 , an acquisition section 32 and a determination section 33 .
  • the communication unit 31, the acquisition unit 32, and the determination unit 33 are implementation examples of communication means, acquisition means, and determination means in the claims.
  • the communication unit 31 is configured to be able to transmit and receive a directional communication medium.
  • the number of communication units 31 included in the communication device 30 does not limit this exemplary embodiment, and the communication device 30 can be configured to include one or more communication units 31 .
  • the communication unit 31 has the same configuration as the communication unit 11 according to exemplary embodiment 1, so the description thereof is omitted here.
  • the acquisition unit 32 acquires related information related to one or more communication partners through the one or more communication means.
  • the relevant information includes at least the number of hops to the connection reference point.
  • the acquisition unit 23 may be configured to refer to a scan beam or a response beam received from a communication device that is a communication partner candidate, and acquire related information included in the scan beam or response beam.
  • the determination unit 33 determines one or more connection partners by the one or more communication means.
  • the determination unit 33 refers to the hop count information included in the related information of the communication partner and determines to connect to the communication partner with a smaller number of hops to the connection reference point.
  • the communication device 30 As mentioned above, the communication device 30 according to this exemplary embodiment: - One or a plurality of communication units 31 configured to be capable of transmitting/receiving a directional communication medium; an acquisition unit 32 that acquires relevant information related to one or more communication partners through the one or more communication means; A determination unit 33 that determines one or more connection partners by the one or more communication means; and The determination unit 33 refers to the hop count information included in the related information of the communication partner and determines to connect to the communication partner with a smaller number of hops to the connection reference point.
  • the communication device 30 since a connection is established with a communication partner candidate with a smaller number of hops to the connection reference point, a more suitably connected communication network can be configured. Effective. Therefore, according to the communication device 30 according to this exemplary embodiment, it is possible to realize a robust communication network using a directional communication medium.
  • FIG. 8 is a flow diagram illustrating the flow of communication method S30 according to the exemplary embodiment. As shown in FIG. 8, the communication method S30 includes steps S31 and S32.
  • Step S32 First, in step S32, the acquisition unit 32 acquires related information related to one or more communication partners through one or more communication means configured to be able to transmit and receive a directional communication medium.
  • the related information acquired by the acquisition unit 32 includes the number of hops from each communication device to the communication connection reference point.
  • step S33 the determination unit 33 determines one or more connection partners via the one or more communication means. Since the specific processing contents by the determination unit 33 have been described above, the description thereof is omitted here.
  • the communication method S30 comprises: Acquiring relevant information related to one or more communication partners via one or more communication means configured to transmit and receive a directional communication medium; determining one or more connection partners by the one or more communication means; In the determining step, The hop number information included in the related information of the communication partner is referred to, and it is determined to connect to the communication partner with a smaller number of hops to the connection reference point.
  • a more preferably connected communication network can be configured. Effective. Therefore, according to the communication method S30 according to this exemplary embodiment, a robust communication network using a directional communication medium can be realized.
  • FIG. 9 is a block diagram showing an example of the configuration of the communication system 3 according to this exemplary embodiment.
  • the communication system 3 according to this exemplary embodiment includes, as an example, a first communication device 30-1, a second communication device 30-2, a third communication device 30-3, and It includes a fourth communication device 30-4.
  • a first communication device 30-1, a second communication device 30-2, a third communication device 30-3, and a fourth communication device 30-4 are each connected to this exemplary communication device. It has the same configuration as the communication device 20 according to the embodiment.
  • the communication system 3 including a plurality of communication devices (for example, a first communication device 30-1, a second communication device 30-2, a third communication device 30-3, and a fourth communication device 30-4),
  • the plurality of communication devices includes one or more communication means configured to be capable of transmitting and receiving a directional communication medium, and one or more and determining means for determining one or more connection partners by the one or more communication means, wherein the determination means determines the relationship between the communication partners
  • the hop count information included in the information is referred to, and it is determined to connect to a communication partner with a smaller number of hops to the connection reference point.
  • the communication system 3 since a connection is established with a communication partner candidate with a smaller number of hops to the connection reference point, it is possible to configure the communication system 3 that is more preferably connected. It has the effect of Therefore, according to the communication system 3 according to this exemplary embodiment, a robust communication system 3 using a directional communication medium can be realized.
  • FIG. 10 is a block diagram showing the configuration of the communication device 100.
  • the communication device 100 according to this exemplary embodiment comprises a first communication section 110, a second communication section 120, a control section 130, a memory 140 and a storage section 150.
  • FIG. 10 is a block diagram showing the configuration of the communication device 100.
  • the communication device 100 according to this exemplary embodiment comprises a first communication section 110, a second communication section 120, a control section 130, a memory 140 and a storage section 150.
  • the first communication unit 110 is an implementation example of communication means in the claims.
  • the first communication unit 110 is configured to be able to transmit and receive a directional communication medium.
  • the first communication unit 110 is composed of a plurality of communication units such as a communication unit 110-1, a communication unit 110-2, . . . as shown in FIG.
  • the individual communication units 110-1, 110-2, . . . are configured to be able to transmit and receive directional communication media as described above.
  • the specific configurations of the individual communication units 110-1, 110-2, . . . do not limit this exemplary embodiment. and a receiver for receiving a directional communication medium.
  • a specific example of the directional communication medium used for communication by the first communication unit 110 does not limit the exemplary embodiment, but as an example, similar to the exemplary embodiment 1, generally An electromagnetic wave in a high frequency region having a frequency of 10 GHz or higher can be cited as an example. Electromagnetic waves in this frequency range may include millimeter waves, sub-millimeter waves, infrared light, visible light, ultraviolet light, and the like.
  • the first communication unit 110 uses the above-described directional communication medium for communication by directing and transmitting electromagnetic waves in the frequency domain within a predetermined angular range.
  • the specific configuration for directing the electromagnetic wave in the frequency domain by the first communication unit 110 does not limit this exemplary embodiment.
  • a configuration including a laser oscillator or the like for generating power can be employed.
  • the individual communication units 110-1, 110-2 transmits/receives an azimuth angle range of 0° to 90°
  • the communication unit 110-2 transmits/receives an azimuth angle range of 90° to 180°
  • the communication unit 110- 3 may be oriented to transmit and receive in an azimuth range of 180° to 270°
  • the communication unit 110-4 may be oriented to transmit and receive in an azimuth range of 270° to 360°.
  • the 2nd communication part 120 is the structure which communicates using communication media other than the directional communication medium which the 1st communication part 120 uses for communication.
  • the second communication unit 120 communicates with other devices such as servers via a wired or wireless local area network, global network, or the like.
  • the second communication unit 120 may be configured to function as an acquisition unit that acquires related information related to another communication device from another device such as another communication device or a server.
  • the control unit 130 includes an acquisition unit 131, a communication management unit 132, and a storage management unit 133, as shown in FIG.
  • the acquisition unit 131 is an implementation example of the acquisition means in the scope of claims.
  • the communication management unit 132 is an implementation example of specifying means, connection establishing means, determining means, and providing means in the scope of claims.
  • the storage management unit 133 is an implementation example of storage means in the claims.
  • Acquisition unit 131 acquires related information related to a communication partner by first communication unit 110 .
  • the communication partner by the first communication unit 110 - One or a plurality of connection partner candidates identified by the communication management unit 132 (to be described later) by scanning using the first communication unit 110 established connection partners.
  • the related information acquired by the acquisition unit 131 will be described later.
  • the communication management section 132 manages communication processing using the first communication section 110 .
  • the communication management unit 132 ⁇ Scanning using the first communication unit 110 ⁇ Establishing a connection using the first communication unit 110 ⁇ Disconnecting the connection using the first communication unit 110 ⁇ Switching the connection using the first communication unit 110 etc. are processed. A specific example of processing by the communication management unit 132 will be described later.
  • the storage management unit 133 manages storage processing to the storage unit 150 .
  • the storage management unit 133 stores the related information acquired by the acquisition unit 131 in the storage unit 150 .
  • the storage management unit 133 reads out various information stored in the storage unit 150 and provides it to each unit of the control unit 130 .
  • FIG. 11 is a sequence diagram showing a first example of the flow of processing from scanning using the first communication unit 110 by the communication management unit 132 to connection establishment.
  • the communication device 100 first emits a scan beam and establishes a connection with a connection partner candidate existing within the scan target range.
  • Step S101-1 the communication management unit 132 uses the first communication unit 110 to transmit a scan beam targeting a predetermined scan range.
  • the transmitted scan beam reaches a connection partner candidate existing in the scan range.
  • Step S101-2 a connection partner candidate existing within the scanning range returns a response beam to communication apparatus 100 as a response to the scanning beam.
  • the returned response beam reaches the communication device 100 .
  • connection partner candidate may include a corner cube reflector, reflect the scan beam by the corner cube reflector, and return the reflected scan beam to the communication device 100 as a response beam.
  • the connection partner candidate may be configured to include a receiving device that receives the scan beam and a transmitting device that transmits the response beam in the receiving direction.
  • Step S102-1 the communication management unit 132 refers to the response beam received from the connection partner candidate and identifies the communication partner candidate.
  • the communication management unit 132 identifies the position of the connection partner candidate based on the direction of the received response beam. More specifically, the communication manager 132 identifies the direction of the connection partner candidate viewed from the communication device 100 based on the direction of the received response beam. In other words, the communication management unit 132 identifies at least one of the azimuth, elevation, and depression angles of the connection partner candidate viewed from the communication device 100 based on the direction of the received response beam.
  • Step S103-1 the communication manager 132 transmits a connection request beam to the connection partner candidate identified in step S102-1.
  • the connection request beam may include identification information for identifying the communication device 100 from other devices together with information indicating that a connection is requested.
  • the connection request beam may include related information managed by the storage management unit 133, which is related to the communication device 100 and other communication devices.
  • connection partner candidate receives the connection request beam transmitted in step S103-1. Also, the connection partner candidate identifies communication apparatus 100 by referring to the connection request beam transmitted in step S103-1. As an example, the connection partner candidate identifies the position of the communication device 100 based on the direction of the received connection request beam. More specifically, the connection partner candidate identifies the direction of communication apparatus 100 as seen from the connection partner candidate based on the direction of the received connection request beam. In other words, the connection partner candidate specifies at least one of the azimuth angle, elevation angle, and depression angle of the communication device 100 seen from the connection partner candidate based on the direction of the received connection request beam.
  • connection partner candidate transmits a connection acceptance beam to communication apparatus 100.
  • the connection acknowledgment beam may include information to the effect that the connection is accepted and identification information for identifying the connection partner candidate from other devices. Further, the connection approval beam may include related information about the connection partner candidate and other communication devices.
  • Step S104-1 the communication manager 132 receives the connection approval beam transmitted in step S103-2.
  • Step S105-1 the storage management unit 133 refers to the connection acceptance beam received in step S104-1, and registers the connection partner candidate as a connection partner.
  • the storage management unit 133 stores the identification information of the connection partner candidate included in the connection approval beam in the storage unit.
  • this step establishes a connection from the communication device 100 to the connection partner candidate.
  • connection partner candidate refers to the connection request beam received in step S102-2 and registers communication device 100 as a connection partner.
  • the connection partner candidate stores the identification information of the communication device 100 included in the connection request beam in a storage unit included in the connection partner candidate.
  • this step establishes a connection from the connection partner candidate to the communication device 100 .
  • FIG. 12 is a sequence diagram showing a second example of the flow of processing from scanning using the first communication unit 110 by the communication management unit 132 to connection establishment.
  • the connection partner candidate first emits a scan beam and establishes a connection with the communication device 100 existing within the scan target range.
  • the flow processing from scanning to connection establishment according to this example is similar to the connection processing between the communication device 100 and the connection partner candidate described with reference to FIG. is replaced. Since the processing in each step shown in FIG. 12 is clear by referring to FIG. 11, detailed description is omitted here.
  • FIG. 13 is a sequence diagram showing a third example of the flow of processing from scanning using the first communication unit 110 by the communication management unit 132 to connection establishment.
  • the communication device 100 first emits a scan beam and establishes a connection with a connection partner candidate existing within the scan target range.
  • FIG. 13 is a sequence diagram showing a third example of the flow of processing from scanning using the first communication unit 110 by the communication management unit 132 to connection establishment.
  • the communication device 100 first emits a scan beam and establishes a connection with a connection partner candidate existing within the scan target range.
  • Step S121-1 the communication management unit 132 uses the first communication unit 110 to transmit a scan beam targeting a predetermined scan range.
  • the transmitted scan beam reaches a connection partner candidate existing in the scan range.
  • the scan beam transmitted in this step may be configured to include identification information for identifying the communication device 100 from other devices together with information requesting connection. Further, the scan beam may include related information managed by the storage management unit 133, which is related to the communication device 100 and other communication devices.
  • the connection partner candidate refers to the scan beam transmitted in step S121-1 and identifies communication device 100.
  • FIG. the connection partner candidate identifies the position of communication device 100 based on the direction of the scan beam transmitted in step S121-1. More specifically, the connection partner candidate identifies the direction of communication apparatus 100 seen from the connection partner candidate based on the direction of the received scan beam. In other words, the connection partner candidate identifies at least one of the azimuth, elevation angle, and depression angle of the communication device 100 viewed from the connection partner candidate based on the direction of the received scan beam.
  • connection partner candidate may further refer to the identification information of the communication device 100 included in the scan beam to specify the communication device 100 .
  • Step S122-2 the connection partner candidate transmits a response beam to communication apparatus 100 as a response to the scan beam transmitted in S121-2.
  • the transmitted response beam reaches the communication device 100 .
  • the response beam transmitted in this step may include identification information for identifying the connection partner candidate from other devices together with information to the effect that the connection is accepted. Further, the response beam may include relevant information managed by the connection partner candidate and related information relating to the connection partner candidate and other communication devices.
  • Step S122-1) the communication management unit 132 refers to the response beam transmitted in step S122-2 to identify connection partner candidates.
  • the communication management unit 132 identifies the position of the connection partner candidate based on the direction of the received response beam. More specifically, the communication manager 132 identifies the direction of the connection partner candidate viewed from the communication device 100 based on the direction of the received response beam. In other words, the communication management unit 132 identifies at least one of the azimuth, elevation, and depression angles of the connection partner candidate viewed from the communication device 100 based on the direction of the received response beam.
  • the communication management unit 132 may further refer to the identification information of the connection partner candidate included in the response beam to specify the connection partner candidate.
  • Step S123-1 the storage management unit 133 refers to the response beam received from the connection partner candidate and registers the connection partner candidate as a connection partner.
  • the storage management unit 133 stores the identification information of the connection partner candidate included in the response beam in the storage unit.
  • this step establishes a connection from the communication device 100 to the connection partner candidate.
  • connection partner candidate refers to the scan beam received from communication device 100 and registers communication device 100 as a connection partner.
  • the connection partner candidate stores the identification information of the communication device 100 included in the scan beam in a storage unit included in the connection partner candidate.
  • this step establishes a connection from the connection partner candidate to the communication device 100 .
  • FIG. 14 is a sequence diagram showing a fourth example of the flow of processing from scanning using the first communication unit 110 by the communication management unit 132 to connection establishment.
  • the connection partner candidate first emits a scan beam and establishes a connection with the communication device 100 existing within the scan target range.
  • the processing flow from scanning to connection establishment according to this example is similar to the connection processing between the communication device 100 and the connection partner candidate described with reference to FIG. is replaced. Since the processing in each step shown in FIG. 14 is clear by referring to FIG. 13, detailed description thereof is omitted here.
  • the communication device 100 has a communication partner candidate (referred to as a communication partner candidate B ) to establish a connection.
  • a communication partner candidate B a communication partner candidate to establish a connection.
  • communication device 100 refers to the relevant information included in the connection request beam transmitted in step S113-2, identifies communication partner candidate B, and identifies communication partner candidate B. It may be configured to establish a connection between.
  • the communication apparatus 100 uses a communication partner candidate (for convenience, called communication partner candidate B) that is different from the communication partner candidate that transmitted the scan beam (for convenience, called communication partner candidate A). ) to establish a connection.
  • communication partner candidate B for convenience, called communication partner candidate B
  • communication partner candidate A the communication partner candidate that transmitted the scan beam
  • communication device 100 refers to the related information included in the scan beam transmitted in step S131-2, identifies communication partner candidate B, and communicates with the identified communication partner candidate B. It is also possible to establish a connection with .
  • FIG. 15 is a diagram showing a configuration example of a communication system 1a according to this exemplary embodiment.
  • the communication system 1a includes other communication devices 100-1 to 100-8 in addition to the communication device 100 according to this exemplary embodiment.
  • the configuration of these communication devices 100-1 to 100-8 is, as an example, the same configuration as the communication device 100 according to this exemplary embodiment.
  • dotted lines indicate established connections.
  • the code "Cxy" (where x and y are numbers) indicates the connection established between the communication device 100-x and the communication device 100-y.
  • C12 refers to the connection established between communication device 100-1 and communication device 100-2.
  • each communication device included in the communication system 1a constitutes a mesh network having communication paths laid out like a mesh.
  • any one of the communication devices 100, 100-1 to 100-8 may be configured to function as an edge terminal, and the communication system 1a may be a communication device other than the communication device shown in FIG. may be configured to include one or a plurality of edge terminals connected to any of .
  • the acquisition unit 131 included in the communication device 100 acquires related information related to the communication partner device of the communication device 100, and the storage management unit 133 included in the communication device 100 stores the related information acquired by the acquisition unit 131 in the storage unit. 150 and managed.
  • the communication partner of the communication device 100 is at least one or more connection partner candidates identified by the communication management unit 132, and one or more connection partners already established by the communication management unit 132. is included.
  • the storage management unit 133 can also be configured to store and manage related information related to the communication device 100 in the storage unit 150 .
  • Communication devices A, B, C, and D are, for example, any one of communication devices 100, 100-1 to 100-8.
  • the related information of communication device A includes: - Location information of the communication device A, and - Load status of communication device A - Number of established connections involving communication device A, - The number of connection partner candidates that have already been identified by scanning in which communication device A is involved; - The connection status of the connection in which the communication device A is involved - At least one of the number of hops from the communication device A to the connection reference point is included.
  • the location information of the communication device A does not limit this exemplary embodiment, but as an example, it may be coordinate information given by a predetermined location specifying system such as GPS. , position identification information such as an address assigned in advance within the target communication area, or information indicating the direction of the communication device A as seen from the communication devices around the communication device A. .
  • the specific index of the load status of the communication device A does not limit this exemplary embodiment, but as an example, it may be information indicating the operating rate of a processor such as a control unit provided in the communication device A. However, it may be information indicating the operating rate of a specific task by a processor such as a control unit provided in the communication device A.
  • FIG. 1 the specific index of the load status of the communication device A.
  • connection involving the communication device A includes at least one of a connection originating from or ending at the communication device A, and a connection via the communication device A.
  • the connections involving communication device A include the connection between communication device A and communication device B, the connection between communication device A and communication device C, and the connection between communication device A and communication device A. At least some of the connections to and from device D are included.
  • connection status of the connection involving the above-described communication partner A includes: At least one of: - the line quality of the connection involving the communication device A;
  • the specific index regarding the line quality of the connection involving the communication device A does not limit this exemplary embodiment, as an example, the delay in the communication due to the connection and the information in the communication via the connection , including any indicator such as the loss rate of
  • a specific index regarding the number of disconnections of the connection involving the communication device A does not limit this exemplary embodiment, but as an example, an index regarding the number of disconnections per unit time of communication through the connection is included. I'm in.
  • the related information of the communication device A includes: • A configuration may be adopted in which information regarding the environmental influence on the connection involving the communication device A is included.
  • the information about the environmental influence on the connection involving the communication device A includes: ⁇ Influence of sunlight on connection between communication device A and communication device B ⁇ Influence of sunlight on connection between communication device A and communication device C At least one of the influence of sunlight on connection is included.
  • the degree of influence of sunlight on a certain connection can be expressed, for example, by the angle of the direction of the sun relative to the direction along the certain connection. For example, if the angle between the direction along the connection and the sun direction is close to 90°, the influence information indicates that the influence of sunlight on the connection is relatively small. Also for example, if the angle between the direction along the connection and the sun direction is close to 0°, the influence information indicates that the influence of sunlight on the connection is relatively large.
  • the information about the influence of the environment on the connection involving the communication device A includes information indicating the influence of reflection and absorption on the directional communication medium used by the communication unit of the communication device A.
  • the configuration may include information such as the transparency of the air and information such as buildings near the propagation path.
  • Example of processing by communication device A specific example of processing by a communication device related to the communication system 1a will be described below. These processing examples can be used in combination with each other, and the processing examples after combination are also included in this exemplary embodiment.
  • processing example 1-1 by the communication device will be described below.
  • the acquisition unit 131 included in the communication device 100 acquires, for example, the related information related to the communication partner device of the communication device 100, and the storage management unit 133 included in the communication device 100 acquires the information acquired by the acquisition unit 131.
  • Related information is stored in the storage unit 150 and managed.
  • Communication device 100-5, communication device 100-6, and communication device 100-8 provide communication device 100 with relevant information related to each device, as an example.
  • Related information RI 100-6 related to the communication device 100-6 and Related information RI 100-8 related to the communication device 100-8 are obtained from the communication devices 100-5, 100-6, and 100-8, respectively, and stored in the storage unit 150 for management.
  • control unit 130 of the communication device 100 transmits related information related to one or more communication partners acquired by the acquisition unit 131 to the one or more communication partners via the first communication unit 110. It may be configured to function as providing means for providing to other communication partners.
  • control unit 130 of the communication device 100 acquires the related information RI 100-5 and the related information RI 100-6 acquired by the acquisition unit 131 from the communication devices 100-5 and 100-6,
  • the configuration may be such that the information is provided to a communication device 100-8 other than the communication device 100-6.
  • the related information RI 100-5 related to the communication device 100-5 may be configured to include related information of the communication partner of the communication device 100-5.
  • the communication device 100-5 acquires in advance related information related to the communication devices 100-2, 100-3, and 100-7, which are its communication partners, and stores this information in its own communication device. It may be configured to be included in related information related to the device.
  • the acquisition unit 131 of the communication device 100 via the relevant information RI 100-5 related to the communication device 100-5, - Related information RI 100-2 related to the communication device 100-2 Related information RI 100-3 related to the communication device 100-3 and Related information RI 100-7 related to the communication device 100-7 can be obtained.
  • the acquisition unit 131 of the communication device 100 via the related information RI 100-6 related to the communication device 100-6, - Related information RI 100-3 related to the communication device 100-3 can be obtained.
  • the acquisition unit 131 of the communication device 100 via the related information RI 100-8 related to the communication device 100-8, - Related information RI 100-7 related to the communication device 100-7 can be obtained.
  • the related information RI 100-7 related to the communication device 100-7 acquires related information related to the communication device 100-4, which is the communication partner of the communication device 100-7, and stores this information in its own device. It may be configured to be included in related information related to the device.
  • related information RI 100-3 related to communication device 100-3 acquires related information related to communication device 100-1, which is the communication partner of communication device 100-3. may be included in related information related to the device.
  • the acquisition unit 131 of the communication device 100 can acquire the related information RI100-1 to RI100-8 for all of the other communication devices 100-1 to 100-8 belonging to the communication system 1a. can.
  • each communication device can acquire wide-area information related to the communication system 1a. become.
  • FIG. 16 is a diagram showing a communication system 1a according to this processing example.
  • This processing example is a processing example when a new communication device 100-A is connected to the communication system 1a.
  • the new communication device 100-A has the same configuration as the communication device 100 as an example.
  • step A the communication device 100 establishes a connection with the communication device 100-A. Since the procedure for establishing a connection has been described above, the description is omitted here. Note that the connection may be established triggered by a scan from the communication device 100, or may be established by a scan from the communication device 100-A.
  • step A the control unit 130 of the communication device 100, via the first communication unit 110, to the communication device 100-A, - Related information RI 100 related to the communication device 100 - Related information RI 100-5 related to the communication device 100-5
  • Related information RI 100-6 related to the communication device 100-6 and Related information RI 100-8 related to the communication device 100-8 I will provide a.
  • step B the control unit provided in the communication device 100-A according to this exemplary embodiment refers to the related information RI100, RI100-5, RI100-6, and RI100-8 received from the communication device 100.
  • do - It functions as a determination means for determining whether or not to perform communication with a communication device other than the communication device 100 that provides the related information.
  • control unit provided in communication device 100-A refers to the location information of communication device 100-8 included in related information RI100 or related information RI100-8, It is judged to be relatively close to -8. Then, the control unit included in communication device 100-A determines to perform communication with communication device 100-8. After making such determination, the communication device 100-A, for example, emits a scan beam to the communication device 100-8 prior to establishing a connection with the communication device 100-8.
  • the communication device refers to the related information received from other communication devices and determines whether to communicate with one or a plurality of communication devices.
  • a communication system 1a having a typical network configuration can be configured.
  • FIG. 17 is a diagram showing a communication system 1a according to this processing example.
  • This processing example is a processing example when a new communication device 100-A is connected to the communication system 1a.
  • the new communication device 100-A has the same configuration as the communication device 100 as an example.
  • step A communication device 100 emits scan beam S0A in the direction in which communication device 100-A exists.
  • scan beam S0A - Related information RI 100 related to the communication device 100 It is included.
  • step B the communication device 100-A, from the scan beam S0A received from the communication device, - Related information RI 100 related to the communication device 100 to get
  • control unit of communication device 100-A refers to related information RI100, It functions as determination means for determining whether or not to establish a connection with the communication device 100 and whether or not to communicate with a communication device other than the communication device 100 .
  • control unit of communication device 100-A refers to related information RI100-8 related to communication device 100-8 included in related information RI100. Then, the control unit of communication device 100-A determines that communication device 100A is relatively close to communication device 100-8 based on the position information included in related information RI100-8. do. Then, the control unit included in communication device 100-A determines to perform communication with communication device 100-8. After making such determination, the communication device 100-A, for example, emits a scan beam to the communication device 100-8 prior to establishing a connection with the communication device 100-8.
  • the communication device refers to related information included in scan beams received from other communication devices and determines whether to communicate with one or more communication devices.
  • a communication system 1a having an adaptive network configuration can be quickly configured according to information.
  • FIG. 18 is a diagram showing a communication system 1a according to this processing example.
  • This processing example is a processing example when a new communication device 100-A is connected to the communication system 1a.
  • the new communication device 100-A has the same configuration as the communication device 100 as an example.
  • control unit of the communication device 100-A establishes a connection with the communication device 100-8. Then, the control unit of communication device 100-A, as a first-stage determination process, controls the communication partner such that the angle between communication device 100-8 and communication device 100-8 as viewed from communication device 100-A is equal to or greater than a predetermined angle. Select a candidate.
  • control unit of the communication device 100-A may be configured to acquire related information related to communication partner candidates, and refer to the acquired related information to perform the above selection.
  • communication devices 100-5, 100-6, and 100-7 are selected as the first-stage determination process.
  • control unit of the communication device 100-A performs the second-stage determination processing, among the communication devices 100-5, 100-6, and 100-7, the angle between the communication devices viewed from the communication device 100-A. is greater than or equal to a predetermined angle.
  • the specific determination processing by the control unit of the communication device 100-A does not limit this exemplary embodiment.
  • the control unit of the communication device 100-A obtains relevant information related to each of the communication devices 100-5, 100-6, and 100-7, and refers to the obtained relevant information to select the above.
  • the specific value of the predetermined angle does not limit this exemplary embodiment.
  • the predetermined angle can be about 30° to 45°.
  • control unit of the communication device 100-A refers to the related information and makes the above selection is taken as an example, but the present invention is not limited to this.
  • the control unit of communication device 100-A performs scanning processing on communication device 100-8 and scanning processing on communication devices 100-5, 100-6, and 100-7 to determine the positions of these communication devices.
  • the above selection may be made by specifying information and referring to the specified position information.
  • control unit of the communication device 100-A - a scanning beam or response beam from the communication device 100-8; - a scanning beam or a response beam from the communication device 100-5; - scan beam or response beam from communication device 100-6; and - scan beam or response beam from communication device 100-7; may be referenced to specify the positions of these communication devices, and the specified positions may be referenced to perform the above selection.
  • directional communication media can be expected to achieve high-capacity and low-delay communication due to their high frequency, but they are also susceptible to obstructions and disturbances due to their directivity.
  • a plurality of communication devices exist in the same direction as viewed from a certain communication device, it is conceivable that the influence of disturbance reaches each of these plurality of communication devices. For example, it is conceivable that, during a particular time period, sunlight influences communication with these multiple communication devices at the same time.
  • communication partners are selected so that the angle between the plurality of communication partners when viewed from a certain communication device is equal to or greater than a predetermined angle, so that the influence of disturbance on the communication system 1a is minimized. It has the effect of being able to
  • FIG. 19 is a diagram showing a communication system 1a according to this processing example.
  • This processing example is a processing example when a new communication device 100-A is connected to the communication system 1a.
  • the new communication device 100-A has the same configuration as the communication device 100 as an example.
  • control unit 130 of the communication device 100 establishes connections with the communication devices 100-5, 100-6, and 100-8.
  • communication device 100 receives a scan beam from communication device 100-A.
  • Control unit 130 of communication device 100 identifies position information of communication device 100-A from the scan beam.
  • control unit 130 of communication device 100 identifies the angle between communication device 100-8 and communication device 100-A as seen from communication device 100.
  • control unit 130 of the communication device 100 functions as determining means for lowering the priority of the communication partner candidate when the communication partner candidate exists within a predetermined angle range from the connected communication partner.
  • control unit 130 of communication device 100 prioritizes communication device 100-A because communication device 100-A exists as a communication partner candidate within a range of a predetermined angle from communication device 100-8 with which connection has already been established. reduce the intensity.
  • control unit 130 of the communication device 100 determines not to connect to the communication device 100-A whose priority has been lowered.
  • the specific value of the predetermined angle does not limit this exemplary embodiment.
  • the predetermined angle can be about 30° to 45°.
  • directional communication media can be expected to achieve high-capacity and low-delay communication due to their high frequency, but they are also susceptible to obstructions and disturbances due to their directivity.
  • a plurality of communication devices exist in the same direction as viewed from a certain communication device, it is conceivable that the influence of disturbance reaches each of these plurality of communication devices. For example, it is conceivable that, during a particular time period, sunlight influences communication with these multiple communication devices at the same time.
  • the priority of the communication partner candidate is lowered, thereby minimizing the influence of disturbance on the communication system 1a. It has the effect of being able to be held.
  • FIG. 20 is a diagram showing a communication system 1a according to this processing example.
  • This processing example is a processing example when a new communication device 100-A is connected to the communication system 1a.
  • the new communication device 100-A has the same configuration as the communication device 100 as an example.
  • control unit 130 of the communication device 100-A provides location information of the communication device 100-A to the communication devices 100-5, 100-6, and 100-7.
  • control unit 130 of communication device 100-A transmits scan beams including position information of communication device 100-A to communication devices 100-5, 100-6, and 100-7.
  • the control unit of communication device 100-5, the control unit of communication device 100-6, and the control unit of communication device 100-7 each refer to the position information of communication device 100-A, which is a communication partner candidate, and It determines whether to establish communication with the communication device 100-A.
  • control unit of communication device 100-5, the control unit of communication device 100-6, and the control unit of communication device 100-7 each refer to the position information of communication device 100-A, which is a communication partner candidate. Then, when the distance from the communication device 100-A is within a predetermined range, it is determined to establish communication with the communication device 100-A.
  • the communication devices 100-5, 100-6, and 100-7 refer to the location information of the plurality of communication partner candidates, and determine which communication partner candidate to establish a connection with. may function. Further, communication devices 100-5, 100-6, and 100-7 refer to position information of a plurality of communication partner candidates, and select one or a plurality of communication partners whose distance from the communication device is within a predetermined range. Candidates may function as determination means for determining the one or more communication partners.
  • control unit of communication device 100-5 refers to the position information of communication device 100-A, and determines that the distance between communication device 100-5 and communication device 100-A is not within a predetermined range and is short. It determines that it is too long, and decides not to establish communication with the communication device 100-A.
  • control unit of communication device 100-6 refers to the position information of communication device 100-A, and the distance between communication device 100-6 and communication device 100-A is not within the predetermined range. , is too long, and decides not to establish communication with the communication device 100-A.
  • control unit of communication device 100-7 refers to the position information of communication device 100-A, and the distance between communication device 100-7 and communication device 100-A is included within a predetermined range. and decides to establish communication with the communication device 100-A. Then, the control unit of communication device 100-7 establishes a connection with communication device 100-A.
  • the specific example of the predetermined range regarding the distance does not limit this exemplary embodiment, but as an example, it is determined according to the characteristics of the directional communication medium used by each communication device. can be kept For example, the predetermined range can be set to range from 50m to 500m. Further, the control unit of communication device 100-5, the control unit of communication device 100-6, and the control unit of communication device 100-7 acquire information indicating the influence of reflection and absorption on the directional communication medium. Alternatively, the predetermined range may be adaptively changed by referring to the acquired information. For example, when the directional communication medium propagates in the air, information such as the transparency of the air and information such as buildings near the propagation path are acquired, and the predetermined range is adapted according to these information. It is good also as a structure which changes dynamically.
  • the communication device refers to the location information of the plurality of communication partner candidates and determines which communication partner candidate to establish a connection with. Further, the communication device refers to position information of a plurality of communication partner candidates, and determines one or a plurality of communication partner candidates whose distance from the communication device is within a predetermined range as the one or a plurality of communication partner candidates. do.
  • a communication system including suitably arranged communication devices can be configured.
  • FIG. 21 is a diagram showing a communication system 1a according to this processing example.
  • This processing example is a processing example when a new communication device 100-A is connected to the communication system 1a.
  • the new communication device 100-A has the same configuration as the communication device 100 as an example.
  • the control unit of the communication device 100-A from the communication device 100-5 and the communication device 100-6, which are communication partner candidates, Related information RI 100-5 related to the communication device 100-5 and Related information RI 100-6 related to the communication device 100-6 function as acquisition means for acquiring Then, the control unit of the communication device 100-A is included in the related information RI100-5 and the related information RI100-6, respectively. • Refer to the number of established connections involving the communication device 100-6.
  • control unit of the communication device 100-A functions as a determining means for determining the communication partner having more established connections among the communication devices 100-5 and 100-6 as the connection partner.
  • the communication device 100-5 has a total of four established connections, connections C57, C45, C25, and C35, excluding the connection with the communication device 100-A.
  • the communication device 100-6 has a total of two established connections, connections C36 and C69. Therefore, the control unit of communication device 100-A determines communication device 100-5 as a connection partner and establishes a connection. Further, the control unit of communication device 100-A does not determine communication device 100-6 as a connection partner and does not establish connection.
  • control unit of the communication device 100-A Related information RI 100-5 related to the communication device 100-5 and Related information RI 100-6 related to the communication device 100-6 a communication partner having more established connections and more connections in use may be determined as the connection partner.
  • the specific method of acquiring the related information by the control unit of the communication device 100-A does not limit this exemplary embodiment, as an example, the communication device 100-5, which is a communication partner candidate, and the A configuration may be employed in which the scan beam or response beam received from the communication device 100-6 is referred to and relevant information included in the scan beam or response beam is obtained.
  • a communication device tends to be more reliable as it has more established connections and more connections in use.
  • the communication device 100-A can establish communication with a communication device with higher reliability, so that a communication system 1a with higher reliability can be configured.
  • FIG. 22 is a diagram showing a communication system 1a according to this processing example.
  • This processing example is a processing example when a new communication device 100-A is connected to the communication system 1a.
  • the new communication device 100-A has the same configuration as the communication device 100 as an example.
  • the control unit of the communication device 100-A from the communication device 100-5 and the communication device 100-6, which are communication partner candidates, Related information RI 100-5 related to the communication device 100-5 and Related information RI 100-6 related to the communication device 100-6 function as acquisition means for acquiring Then, the control unit of the communication device 100-A determines the number of established connections involving the communication device 100-5 included in the related information RI 100-5, - The number of connection partner candidates identified by scanning involving the communication device 100-5; The communication device 100-5 refers to the connection status of the connections involved, and the connections that the communication device 100-5 has. - Identify the number of connection partner candidates for which connection has not yet been established among the connection partner candidates already identified by scanning.
  • control unit of the communication device 100-A controls the number of established connections involving the communication device 100-6 included in the related information RI 100-6; - The number of connection partner candidates identified by scanning involving the communication device 100-6; The communication device 100-6 refers to the connection status of the connections involved, and the connections that the communication device 100-6 has and is not in use among established connections, and - Identify the number of connection partner candidates for which connection has not yet been established among the connection partner candidates already identified by scanning.
  • connection partner the control unit of the communication device 100-A ⁇ A connection that is not in use among established connections, or - A communication partner having a larger number of connection partner candidates for which connection has not yet been established among the connection partner candidates already identified by scanning is determined as the connection partner.
  • unused connections among established connections are represented by dashed-dotted lines.
  • the communication device 100-5 has a total of two unused connections, C57 and C54, out of the established connections.
  • the communication device 100-6 does not have unused connections among established connections.
  • control unit of communication device 100-A determines communication device 100-5 as the communication partner and establishes connection. Further, the control unit of communication device 100-A does not determine communication device 100-6 as a connection partner and does not establish connection.
  • the specific method of acquiring the related information by the control unit of the communication device 100-A does not limit this exemplary embodiment, as an example, the communication device 100-5, which is a communication partner candidate, and the A configuration may be employed in which the scan beam or response beam received from the communication device 100-6 is referred to and relevant information included in the scan beam or response beam is obtained.
  • control unit of the communication device 100-A determines whether the number of established connections involving the communication device 100-5 or the number of established connections that are in use is determined by the communication device 100-5. If the means reaches the maximum number of connections that can be established minus one, no further connection establishment, or - It may be configured to function as a connection establishment unit that performs a process of disabling the already-connected connection after making a further connection.
  • control unit of the communication device 100-A determines that the number of established connections involving the communication device 100-6 or the number of established connections that are in use by the communication device 100-6. If the communication means reaches the maximum number of connections that can be established minus one, no further connection establishment, or - It may be configured to function as a connection establishment unit that performs a process of disabling the already-connected connection after making a further connection.
  • control unit of the communication device 100-5 or 100-6 determines whether the number of established connections or the number of established connections that are in use by the communication device 100-5 or 100-6. If the communication unit reaches the maximum number of connections that can be established minus one, no further connection establishment, or It may be configured to function as a connection establishment unit that performs a process of setting the already-connected connection to a non-use state after making a further connection.
  • communication devices tend to be more reliable as they have more established connections.
  • connection partner candidates that have not yet established a connection among the connection partner candidates that have already been identified by scanning.
  • the communication device 100-A increases the number of unused connections among the established connections, or the connection partner candidates whose connections have not been established among the connection partner candidates already identified by scanning. Since the communication partner having the terminal is determined as the connection partner, the communication system 1a having high reliability and effectively utilizing the communication path can be configured.
  • FIG. 23 is a diagram showing a communication system 1a according to this processing example.
  • This processing example is a processing example when a new communication device 100-A is connected to the communication system 1a.
  • the new communication device 100-A has the same configuration as the communication device 100 as an example.
  • control unit of the communication device 100-A functions as providing means for providing usage information regarding the usage of the connection to the communication device 100-2 and the communication device 100-3, which are communication partner candidates.
  • the usage information includes information regarding whether the usage of the connection is the first usage or the second usage different from the first usage.
  • the first use refers to when the connection is used for an access link
  • the second use refers to when the connection is used for a backbone link.
  • the access link mainly refers to a connection path used for exchanging data between edge terminals included in the communication system 1a.
  • a backbone link mainly refers to a connection path used for exchanging data between communication devices other than edge terminals included in the communication system 1a. Even a backbone link may function as an access link depending on the situation.
  • control unit of the communication device 100-2 and the control unit of the communication device 100-3 receive the usage information from the communication device 100-A, as a response to the usage information, respectively, Related information RI 100-2 related to the communication device 100-2 and Related information RI 100-3 related to the communication device 100-3 to the communication device 100-A.
  • the control unit of the communication device 100-A also functions as acquisition means for acquiring the related information.
  • the related information provided to the communication device 100-A may have different contents depending on the usage information.
  • the control unit of the communication device 100-2 and the control unit of the communication device 100-3 as related information, respectively: the connection involving the communication device 100-2;
  • the connection status and the connection status of the connection involving the communication device 100-3 may be provided to the communication device 100-A, and the control unit of the communication device 100-A may acquire this information.
  • connection status of the connection involving the communication device 100-2 includes: the line quality of the connection involving the communication device 100-2; At least one of the number of connection interruptions involving the communication device 100-2 and the connection delay time involving the communication device 100-2 is included.
  • connection status of the connection involving the communication device 100-3 includes: the line quality of the connection involving the communication device 100-3; At least one of the number of connection interruptions involving the communication device 100-3 and the connection delay time involving the communication device 100-3 is included.
  • the control unit of the communication device 100-A Related information RI 100-2 related to the communication device 100-2 and Related information RI 100-3 related to the communication device 100-3 determines whether or not to connect with the communication device 100-2 and whether or not to connect with the communication device 100-3.
  • the control unit of communication device 100-A determines that, of communication devices 100-2 and 100-3, the line quality is better and the number of interruptions is higher. It decides to establish a connection with the communication device that has the lower latency and the lower latency. As an example, in the example shown in FIG. 23, the control unit of communication device 100-A determines that the connection involving communication device 100-2 has better line quality, and establishes connection with communication device 100-2. While C2A is established, communication with communication device 100-3 is not established.
  • the specific method of acquiring the related information by the control unit of the communication device 100-A does not limit this exemplary embodiment, as an example, the communication device 100-2, which is a communication partner candidate, and the A configuration may be employed in which the scan beam or response beam received from the communication device 100-3 is referred to and relevant information included in the scan beam or response beam is obtained.
  • the requirements for a communication path may vary depending on the application of that communication path.
  • the control unit of the communication device 100-A - provide usage information regarding the usage of the connection to one or more communication partners; - obtain, from the one or more communication partners, relevant information related to the communication partners in response to the usage information; - Since it is determined whether or not to connect with the communication partner by referring to the relevant information related to the communication partner, it is possible to construct a suitable communication path according to the purpose of connection. can.
  • the communication device 100-A establishes communication with a communication device having a relatively good line state among the communication partner candidates, so that the communication device 100-A constitutes a communication system 1a having a favorable communication state. be able to.
  • FIG. 24 is a diagram showing a communication system 1a according to this processing example.
  • This processing example is a processing example when a new communication device 100-A is connected to the communication system 1a.
  • the new communication device 100-A has the same configuration as the communication device 100 as an example.
  • control unit of the communication device 100-A functions as providing means for providing usage information regarding the usage of the connection to the communication device 100-5 and the communication device 100-6, which are communication partner candidates.
  • control unit of the communication device 100-5 and the control unit of the communication device 100-6 receive the usage information from the communication device 100-A, as a response to the usage information, respectively, Related information RI 100-5 related to the communication device 100-5 and Related information RI 100-6 related to the communication device 100-6 to the communication device 100-A.
  • the control unit of the communication device 100-A also functions as acquisition means for acquiring the related information.
  • the control unit of the communication device 100-5 and the control unit of the communication device 100-6 respectively, as related information
  • the number of established connections involving the communication device 100-5 and the number of established connections involving the communication device 100-6 are provided to the communication device 100-A, and the control unit of the communication device 100-A may be configured to acquire the information of
  • the control unit of the communication device 100-A Related information RI 100-2 related to the communication device 100-2 and Related information RI 100-3 related to the communication device 100-3 determines whether or not to connect with the communication device 100-2 and whether or not to connect with the communication device 100-3.
  • the control unit of the communication device 100-A selects the communication device with the larger number of established connections among the communication devices 100-5 and 100-6. decides to establish a connection with As an example, in the example shown in FIG. 24, the control unit of communication device 100-A determines that the number of established connections involving communication device 100-5 is greater, and establishes connection with communication device 100-5. While C5A is established, communication with communication device 100-6 is not established.
  • the specific method of acquiring the related information by the control unit of the communication device 100-A does not limit this exemplary embodiment, as an example, the communication device 100-5, which is a communication partner candidate, and the A configuration may be employed in which the scan beam or response beam received from the communication device 100-6 is referred to and relevant information included in the scan beam or response beam is obtained.
  • the requirements for a communication path may vary depending on the application of that communication path.
  • the control unit of the communication device 100-A - provide usage information regarding the usage of the connection to one or more communication partners; - obtain, from the one or more communication partners, relevant information related to the communication partners in response to the usage information; - Since it is determined whether or not to connect with the communication partner by referring to the relevant information related to the communication partner, it is possible to construct a suitable communication path according to the purpose of connection. can.
  • the communication device 100-A establishes communication with a communication device having a relatively large number of established connections among the communication partner candidates. can be configured.
  • FIG. 25 is a diagram showing a communication system 1a according to this processing example.
  • This processing example is a processing example when a new communication device 100-A is connected to the communication system 1a.
  • the new communication device 100-A has the same configuration as the communication device 100 as an example.
  • the communication device 100-A receives communication device 100-3 and communication device 100-5, which are communication partner candidates, respectively, Related information RI 100-3 related to the communication device 100-3 and Related information RI 100-5 related to the communication device 100-5 function as an acquisition means for acquiring
  • the related information RI 100-3 and the related information RI 100-3 respectively include: The number of hops from the communication device 100-3 to the connection reference point and the number of hops from the communication device 100-5 to the connection reference point are included.
  • a specific example of the connection reference point does not limit this exemplary embodiment, but for example, it refers to a terminal or communication device that serves as a connection point from the network configured by the communication system 1a to another network.
  • the connection reference point is represented by reference numeral 100-X.
  • the control unit of communication device 100-A refers to the hop count information included in related information RI100-3 and related information RI100-5, and determines to connect to a communication partner with a smaller number of hops to the connection reference point. Acts as a decision-making tool.
  • the number of hops from the communication device 100-3 to the connection reference point 100-X is 1, and the number of hops from the communication device 100-5 to the connection reference point 100-X is 2. or 3. Therefore, the control unit of the communication device 100-A establishes a connection with the communication device 100-3, which has a smaller number of hops to the connection reference point 100-X, out of the communication devices 100-3 and 100-5. On the other hand, the connection with the communication device 100-5 is not established.
  • the specific method of acquiring the related information by the control unit of the communication device 100-A does not limit this exemplary embodiment, as an example, the communication device 100-3 and A configuration may be employed in which the scan beam or response beam received from the communication device 100-5 is referred to and relevant information included in the scan beam or response beam is obtained.
  • the communication device 100-A establishes a connection with a communication partner candidate with a smaller number of hops to the connection reference point. .
  • a computer that executes instructions of a program, which is software that implements each function.
  • An example of such a computer (hereinafter referred to as computer C) is shown in FIG.
  • Computer C comprises at least one processor C1 and at least one memory C2.
  • Memory C2 stores computer C in communication devices 10, 10-1 to 10-4, 20, 20-1 to 20-4, 30, 30-1 to 30-4, 100, 100-1 to 100-9, A program P for operating as 100-A is recorded.
  • the processor C1 reads the program P from the memory C2 and executes it so that the communication devices 10, 10-1 to 10-4, 20, 20-1 to 20-4, 30, 30-1 to 30 -4, 100, 100-1 to 100-9, 100-A functions are realized.
  • processor C1 for example, CPU (Central Processing Unit), GPU (Graphic Processing Unit), DSP (Digital Signal Processor), MPU (Micro Processing Unit), FPU (Floating point number Processing Unit), PPU (Physics Processing Unit) , a microcontroller, or a combination thereof.
  • memory C2 for example, a flash memory, HDD (Hard Disk Drive), SSD (Solid State Drive), or a combination thereof can be used.
  • the computer C may further include a RAM (Random Access Memory) for expanding the program P during execution and temporarily storing various data.
  • Computer C may further include a communication interface for sending and receiving data to and from other devices.
  • Computer C may further include an input/output interface for connecting input/output devices such as a keyboard, mouse, display, and printer.
  • the program P can be recorded on a non-temporary tangible recording medium M that is readable by the computer C.
  • a recording medium M for example, a tape, disk, card, semiconductor memory, programmable logic circuit, or the like can be used.
  • the computer C can acquire the program P via such a recording medium M.
  • the program P can be transmitted via a transmission medium.
  • a transmission medium for example, a communication network or broadcast waves can be used.
  • Computer C can also obtain program P via such a transmission medium.
  • Appendix 1 one or more communication means configured to transmit and receive a directional communication medium; a providing means for providing usage information relating to usage of connection to one or more communication partners via the one or more communication means; Acquisition means for acquiring relevant information related to the one or more communication partners from the one or more communication partners as a response to the usage information; determining means for determining whether or not to establish a connection with the communication partner by referring to related information related to the communication partner.
  • the usage information is 2.
  • the information on the connection status of the connection involving the communication partner is acquired as a response to the usage information. It is possible to suitably determine whether or not to connect with the communication partner.
  • connection status of the connection involving said communication partner includes: the line quality of the connection involving said communication partner; The communication device according to appendix 3, wherein at least one of the number of connection interruptions involving the communication partner and the delay time of the connection involving the communication partner is included.
  • the usage of the connection indicates that it is the second usage
  • information on the number of established connections involving the communication partner is acquired as a response to the usage information. , it can be suitably determined whether or not to connect with the communication partner.
  • the determining means is 6.
  • the communication device according to any one of appendices 1 to 5, wherein the hop count information included in the related information of the communication partner is referred to, and it is determined to connect to the communication partner with a smaller number of hops to the connection reference point.
  • (Appendix 7) one or more communication means configured to transmit and receive a directional communication medium; Acquisition means for acquiring relevant information related to one or more communication partners by the one or more communication means; determining means for determining one or more connection partners by the one or more communication means; The determining means is A communication device that refers to hop count information included in the communication partner related information and determines to connect to a communication partner with a smaller number of hops to a connection reference point.
  • Appendix 8 including a plurality of communication devices; At least one of the plurality of communication devices, one or more communication means configured to transmit and receive a directional communication medium; a providing means for providing usage information relating to usage of connection to one or more communication partners via the one or more communication means; Acquisition means for acquiring relevant information related to the one or more communication partners from the one or more communication partners as a response to the usage information; determining means for determining whether or not to connect with the communication partner by referring to related information related to the communication partner.
  • (Appendix 9) including a plurality of communication devices; At least one of the plurality of communication devices, one or more communication means configured to transmit and receive a directional communication medium; Acquisition means for acquiring relevant information related to one or more communication partners by the one or more communication means; determining means for determining one or more connection partners by the one or more communication means; The determining means A communication system that refers to hop count information included in the communication partner related information and determines to connect to a communication partner with a smaller number of hops to a connection reference point.
  • Appendix 10 providing usage information regarding the usage of connection to one or more communication partners via one or more communication means configured to be able to transmit and receive a directional communication medium; obtaining, from the one or more communication partners, relevant information related to the communication partners in response to the usage information; determining whether or not to connect with the communication partner by referring to relevant information related to the communication partner.
  • (Appendix 11) Acquiring relevant information related to one or more communication partners via one or more communication means configured to transmit and receive a directional communication medium; determining one or more connection partners by the one or more communication means; In the determining step, A communication method comprising referring to hop count information included in the communication partner related information and determining to connect to a communication partner with a smaller number of hops to a connection reference point.
  • Appendix 12 A program for operating a computer as the communication device according to any one of Appendices 1 to 7, wherein the program causes the computer to function as each of the means.
  • Appendix 13 at least one processor, said processor comprising: a providing process of providing usage information regarding the usage of connection to one or more communication partners using a communication means that transmits and receives a directional communication medium; Acquisition processing for acquiring relevant information related to the one or more communication partners from the one or more communication partners as a response to the usage information; A communication device that refers to related information related to the communication partner and executes determination processing for determining whether or not to connect with the communication partner.
  • Appendix 14 at least one processor, said processor comprising: Acquisition processing for acquiring relevant information related to one or more communication partners by a communication means that transmits and receives a directional communication medium; a determination process of determining one or more connection partners by the one or more communication processes; In the decision process, A communication device that refers to hop count information included in the communication partner related information and determines to connect to a communication partner with a smaller number of hops to a connection reference point.
  • the communication device may further include a memory, and the memory may store a program for causing the processor to execute each process. Also, this program may be recorded in a computer-readable non-temporary tangible recording medium.

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JP2019161373A (ja) * 2018-03-09 2019-09-19 株式会社リコー 通信システム、通信システムの制御方法、及び端末管理装置

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