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WO2018168701A1 - Dispositif de communication, système de communication, et procédé de communication - Google Patents

Dispositif de communication, système de communication, et procédé de communication Download PDF

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Publication number
WO2018168701A1
WO2018168701A1 PCT/JP2018/009253 JP2018009253W WO2018168701A1 WO 2018168701 A1 WO2018168701 A1 WO 2018168701A1 JP 2018009253 W JP2018009253 W JP 2018009253W WO 2018168701 A1 WO2018168701 A1 WO 2018168701A1
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Prior art keywords
communication
data
unit
divided
information
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PCT/JP2018/009253
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English (en)
Japanese (ja)
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悟史 園部
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日本電気株式会社
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Publication of WO2018168701A1 publication Critical patent/WO2018168701A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass

Definitions

  • the present invention relates to a communication device, a communication system, and a communication method for transmitting and receiving data.
  • Patent Document 1 is a system in which a transmission side transmits divided transmission data in parallel via a plurality of wireless channels, and the reception side assembles transmission data received into one data.
  • a system is described in which communication is performed using the remaining radio channel when interference with another system occurs in any of the radio channels.
  • Patent Document 2 discloses a system for performing link training for transmitting / receiving a predetermined packet via each of a plurality of parallel wireless channels, and establishing a link via a wireless channel in which the number of generated errors is less than a threshold value Is described.
  • an object of the present invention is to provide a communication device, a communication system, and a communication method that can appropriately cope with a change in communication status.
  • a communication apparatus includes: a dividing unit that divides one data; and a transmitting unit that transmits a divided packet including the data divided by the dividing unit using any of a plurality of wireless communication lines.
  • the transmission means transmits the fragmented packet using a wireless communication line selected based on communication quality information indicating the communication status of each of the plurality of wireless communication lines.
  • a communication system includes a communication apparatus according to any one of the aspects, a reception unit that receives the divided packet transmitted by the transmission unit via the plurality of wireless communication lines, and a packet that is received by the reception unit.
  • a receiving-side communication device is provided that includes information generation means for generating the communication quality information based on reception.
  • the communication method includes a dividing step of dividing one data, and a transmitting step of transmitting a divided packet including the data divided in the dividing step using any of a plurality of wireless communication lines, In the transmitting step, the divided packet is transmitted using a wireless communication line selected based on communication quality information indicating a communication status of each of the plurality of wireless communication lines.
  • FIG. 1 is a block diagram illustrating a configuration example of a communication system 300 according to the first embodiment.
  • a communication system 300 includes a data transmission source communication device 100 and a data transmission destination communication device 200.
  • FIG. 1 shows a partial configuration of the data transmission source communication device 100 and a partial configuration of the data transmission destination communication device 200.
  • the data transmission source communication device 100 and the data transmission destination communication device 200 are arranged so as to be connectable by a plurality of parallel wireless communication lines. Then, the data input to the data transmission source communication device 100 is transmitted to the data transmission destination communication device 200 via the wireless communication line and output.
  • FIG. 2 is a block diagram illustrating a configuration example of the data transmission source communication device 100 according to the first embodiment.
  • the data transmission source communication apparatus 100 includes an input / output port 110, a buffer 120, a data dividing unit 130, transmission units 140-1 to 140-n, a receiving unit 150, a transmission control unit 160, and a division control unit 170.
  • the transmission units 140-1 to 140-n may be collectively referred to as the transmission unit 140.
  • the data to be transmitted to the data transmission destination communication device 200 is input to the input / output port 110.
  • the buffer 120 stores data input to the input / output port 110.
  • the data dividing unit 130 reads the data stored in the buffer 120 and divides the data in accordance with an instruction from the division control unit 170 to generate divided data that is data after division. Then, the data dividing unit 130 inputs the generated divided data to the transmitting unit 140.
  • the dividing means is realized by the data dividing unit 130, for example.
  • the transmission units 140-1 to 140-n are prepared so as to correspond to the wireless communication lines with the data transmission destination communication device 200, respectively. Further, the transmission units 140-1 to 140-n generate a divided packet including header information, division control information, and the divided data input by the data dividing unit 130. Transmitters 140-1 to 140-n transmit the generated divided packets using an adaptive modulation scheme in accordance with the corresponding wireless communication line.
  • the transmission unit is realized by the transmission unit 140, for example.
  • the header information is shaded in FIG. Further, the division control information is shown by a diagonally downward slanting line in FIG. Then, the divided data is indicated by a left-downward oblique line in FIG.
  • the division control information is information indicating which of the plurality of wireless communication lines is used by the transmission units 140-1 to 140-n.
  • the header information is information including modulation scheme information and division information.
  • the modulation scheme information is information indicating a modulation scheme applied to the divided packet transmitted by the transmission unit 140.
  • the division information is information necessary for the data transmission destination communication apparatus 200 to combine the divided data included in each divided packet.
  • the receiving unit 150 receives information transmitted by the data transmission destination communication device 200. Specifically, the receiving unit 150 receives, for example, request modulation method information and communication quality information transmitted by the data transmission destination communication device 200. Then, the receiving unit 150 inputs the requested modulation method information to the transmission control unit 160. Further, the receiving unit 150 inputs communication quality information to the division control unit 170. The requested modulation method information and communication quality information will be described later.
  • the transmission control unit 160 inputs modulation scheme instruction information indicating a modulation scheme to the transmission unit 140 based on the requested modulation scheme information input by the reception unit 150.
  • the division control unit 170 determines the transmission mode of the divided packet based on the communication quality information input by the reception unit 150. Then, the division control unit 170 generates transmission mode information indicating the determined transmission mode of the divided packet. The division control unit 170 inputs the generated transmission mode information to the data division unit 130 and the transmission unit 140.
  • the transmission mode information is information indicating a wireless communication line used for transmitting the divided packet, and details will be described later.
  • FIG. 3 is a block diagram illustrating a configuration example of the data transmission destination communication device 200 according to the first embodiment.
  • the data transmission destination communication device 200 includes an input / output port 210, a data combination unit 230, reception units 240-1 to 240-n, a transmission unit 250, a reception information generation unit 260, and a combination control unit 270.
  • the receiving units 240-1 to 240-n may be collectively referred to as the receiving unit 240.
  • the receiving means is realized by the receiving unit 240, for example.
  • the information generation unit is realized by the reception information generation unit 260, for example.
  • the reception unit 240 receives the divided packet transmitted by the transmission unit 140 of the data transmission source communication device 100. Then, the reception unit 240 inputs the division control information included in the received divided packet to the combination control unit 270. The receiving unit 240 inputs the header information and the divided data included in the divided packet to the data combining unit 230. Further, the reception unit 240 inputs a reception signal corresponding to the received divided packet to the reception information generation unit 260. Receiving units 240-1 to 240-n are prepared so as to correspond to wireless communication lines with data transmission source communication device 100, respectively.
  • the combination control unit 270 instructs the data combining unit 230 to combine divided data based on the division control information input by the receiving unit 240.
  • the data combining unit 230 combines the divided data input by the receiving unit 240 in accordance with an instruction from the combining control unit 270. Then, the data combining unit 230 inputs the combined data to the input / output port 210.
  • the input / output port 210 outputs the data input by the data combining unit 230.
  • the reception information generation unit 260 generates request modulation method information and communication quality information based on the reception signal input by the reception unit 240. Then, reception information generation section 260 inputs the generated required modulation scheme information and communication quality information to transmission section 250.
  • the transmission unit 250 transmits the request modulation method information and communication quality information input by the reception information generation unit 260.
  • the requested modulation method information is information indicating a modulation method that is required to be adopted when the data transmission destination communication device 200 transmits a divided packet to the data transmission source communication device 100.
  • the reception information generation unit 260 of the data transmission destination communication apparatus 200 generates request modulation method information indicating the modulation method of the transmitted divided packet according to the received signal.
  • the reception information generation unit 260 measures a CNR (Carrier to Noise Ratio) in the reception signal, and generates request modulation method information indicating a multi-value modulation method according to the value of the measurement result. .
  • CNR Carrier to Noise Ratio
  • the reception information generation unit 260 generates request modulation method information indicating a modulation method in which the value of the multi-value number is larger as the CNR value that is the value of the measurement result is larger. Also, the reception information generation unit 260 generates request modulation scheme information indicating a modulation scheme in which the value of the multi-value number is smaller as the CNR value that is the value of the measurement result is smaller.
  • the transmission unit 140 to which the modulation scheme instruction information based on the request modulation scheme information generated and transmitted is input modulates and transmits the divided packet with the modulation scheme indicated by the modulation scheme instruction information.
  • Such a configuration makes it possible to transmit a divided packet at a higher speed when the communication condition is good. Further, when the communication status is poor, the divided packet can be transmitted more reliably.
  • the modulation scheme instruction information is information indicating a modulation scheme (modulation scheme) applied to the divided packet transmitted by the transmission unit 140.
  • the transmission control unit 160 generates modulation scheme instruction information indicating the modulation scheme indicated by the required modulation scheme information.
  • the communication quality information is information indicating the quality of the received signal based on the divided packet transmitted from the data transmission source communication device 100 by the reception unit 240 of the data transmission destination communication device 200.
  • the divided packet is transmitted by each of the transmission units 140-1 to 140-n and received by the reception units 240-1 to 240-n via the wireless communication lines corresponding to each of the transmission units 140-1 to 140-n.
  • the communication quality information indicates the communication status of each wireless communication line corresponding to each of the transmitting units 140-1 to 140-n and the receiving units 240-1 to 240-n.
  • the communication quality information is, for example, information indicating each CNR value of a received signal transmitted / received via each wireless communication line.
  • generated and transmitted was input determines the transmission aspect of a division
  • the transmission mode information is information indicating the transmission mode determined by the division control unit 170 based on the communication quality information. Specifically, the division control unit 170 selects a wireless communication line with good communication status, determines to transmit a divided packet via the selected wireless communication line, and selects the selected wireless communication according to the determination result. Transmission mode information indicating a line is generated. Note that the transmission mode information may be information indicating the transmission unit 140 corresponding to the selected wireless communication line.
  • the division control unit 170 inputs the transmission mode information to the data division unit 130 and the transmission unit 140.
  • the data division unit 130 divides the data read from the buffer 120 according to the transmission mode information, and generates a divided packet.
  • Data divider 130 divides data according to the number of wireless communication lines indicated by the transmission mode information. Specifically, for example, when three wireless communication lines are indicated by the transmission mode information, the data is divided into three to generate three divided data.
  • the division control unit 170 transmits the generated divided data according to the transmission mode information (more specifically, for example, according to the wireless communication line indicated by the transmission mode information) (for example, the transmission unit 140- Enter 1 to 3).
  • the divided data is included in the divided packet and transmitted by the transmission unit 140 corresponding to the transmission mode information.
  • Such a configuration makes it possible to transmit and receive divided packets via a wireless communication line with good communication conditions.
  • the transmission units 140-1 to 140-n and the reception unit 150 are realized by a communication module, for example.
  • the data dividing unit 130, the transmission control unit 160, and the division control unit 170 are realized by, for example, a CPU (Central Processing Unit) and a plurality of circuits.
  • the buffer 120 is realized by storage means such as a memory, for example.
  • the input / output port 110 is realized by an input / output interface, for example.
  • the receiving units 240-1 to 240-n and the transmitting unit 250 are realized by a communication module, for example.
  • the data combination unit 230, the reception information generation unit 260, and the combination control unit 270 are realized by, for example, a CPU or a plurality of circuits.
  • the buffer 120 is realized by storage means such as a memory, for example.
  • the input / output port 210 is realized by, for example, an input / output interface.
  • the communication line selection means is realized by the division control unit 170, for example.
  • FIG. 4 is a flowchart showing the operation of the data transmission source communication device 100.
  • the data dividing unit 130 reads the data input to the input / output port 110 and stored in the buffer 120 (step S101).
  • the data dividing unit 130 divides the data read out in the process of step S101 based on the transmission mode information input by the division control unit 170 (step S102).
  • the data division unit 130 inputs the divided data, the division information, and the division control information, which are data after division, to the transmission unit 140 corresponding to the wireless communication line indicated by the transmission mode information.
  • the data dividing unit 130 inputs the divided data, the division information, and the division control information to the transmission units 140-1 to 140-3 in the process of step S102.
  • the transmitting units 140-1 to 140-3 generate a divided packet including the modulation scheme information and the divided data, the divided information, and the divided control information input by the data dividing unit 130 (step S103).
  • the modulation scheme information is information indicating the modulation scheme indicated by the modulation scheme instruction information.
  • header information is comprised by modulation system information and division
  • the transmission units 140-1 to 140-3 perform modulation processing on the divided packets using the modulation scheme indicated by the modulation scheme instruction information (step S104).
  • the transmission units 140-1 to 140-3 transmit the divided packets subjected to the modulation process in the process of step S104 (step S105).
  • the receiving unit 150 receives the request modulation method information and the communication quality information corresponding to the divided packet transmitted by the transmitting units 140-1 to 140-3 in the process of step S105 (step S106).
  • the receiving unit 150 inputs the request modulation method information received in the process of step S106 to the transmission control unit 160 (step S107). Then, the transmission control unit 160 generates modulation scheme instruction information indicating the modulation scheme indicated by the required modulation scheme information. Then, the transmission control unit 160 inputs the generated modulation scheme instruction information to the transmission unit 140 (step S108).
  • the receiving unit 150 inputs communication quality information to the division control unit 170 (step S109). And the division
  • the communication quality information is information indicating a CNR value.
  • a threshold for comparison with a value indicated by the communication quality information is stored in the storage unit (not shown, which may be the buffer 120) of the data transmission source communication device 100.
  • the threshold value is set according to the CNR value at which no error occurs or the BER value is equal to or lower than a predetermined value in transmission / reception of the divided packet between the data transmission source communication device 100 and the data transmission destination communication device 200.
  • the threshold value is, for example, the CNR value or a value obtained by adding a predetermined value to the CNR value.
  • the threshold value may be a sum value obtained by adding a predetermined value to a CNR value at which no line disconnection occurs between the data transmission source communication device 100 and the data transmission destination communication device 200.
  • step S110 the division control unit 170 compares the threshold value with each value corresponding to each wireless communication line indicated by the communication quality information. Then, the data dividing unit 130 selects a wireless communication line corresponding to a value equal to or greater than the threshold value, determines to transmit a divided packet via the selected wireless communication line, and selects the selected wireless communication line according to the determination result. Is generated.
  • the division control unit 170 determines not to transmit the divided packet via the wireless communication line corresponding to the value less than the threshold in the process of step S110. Then, the division control unit 170 inputs the transmission mode information generated according to the determination result in the process of step S110 to the data division unit 130 and the transmission unit 140 (step S111).
  • steps S107 and S108 and the processing of steps S109 to S111 may be performed simultaneously, or steps S109 to S111 may be performed prior to the processing of steps S107 and S108.
  • FIG. 5 is a flowchart showing the operation of the data transmission destination communication device 200.
  • the reception unit 240 receives the divided packet transmitted by the transmission unit 140 of the data transmission source communication device 100 (step S201).
  • the receiving units 240-1 to 240-3 receive the divided packets transmitted by the transmitting units 140-1 to 140-3 of the data transmission source communication device 100 in the process of step S201.
  • the reception unit 240 inputs the division control information included in the received divided packet to the combination control unit 270.
  • the receiving unit 240 inputs the header information and the divided data included in the divided packet to the data combining unit 230. Furthermore, the reception unit 240 inputs the received signal of the divided packet to the reception information generation unit 260.
  • the combination control unit 270 instructs the data combining unit 230 to combine the divided data based on the division control information input by the receiving unit 240 (step S202).
  • the division control information indicates that a wireless communication line corresponding to the receiving units 240-1 to 240-3 is used. Therefore, the combining control unit 270 instructs the data combining unit 230 to combine the divided data included in the divided packets received by the receiving units 240-1 to 240-3.
  • the data combining unit 230 combines the divided data with each other based on the division information of the header information included in the divided packet in accordance with the instruction from the combination control unit 270 (step S203). Then, the data combining unit 230 inputs the combined data to the input / output port 210.
  • the input / output port 210 outputs the combined data input by the data combining unit 230 (step S204).
  • the reception information generation unit 260 generates request modulation method information and communication quality information based on the reception signal input by the reception unit 240 (step S205). Then, reception information generation section 260 inputs the generated required modulation scheme information and communication quality information to transmission section 250.
  • the transmission unit 250 transmits the request modulation method information and the communication quality information input by the reception information generation unit 260 (step S206).
  • steps S202 to S204 may be performed simultaneously with the processing of steps S205 and 206, or the processing of steps S205 and 206 may be performed prior to the processing of steps S202 to S204.
  • the transmission unit 140 of the data transmission source communication device 100 transmits a divided packet including divided data that is divided data.
  • the receiving unit 240 of the data transmission destination communication apparatus 200 receives the divided packet transmitted by the transmitting unit 140.
  • the data combining unit 230 combines the divided data with each other.
  • the reception information generating unit 260 generates request modulation method information and communication quality information.
  • the transmission unit 250 transmits the request modulation method information and the communication quality information generated by the reception information generation unit 260.
  • the data dividing unit 130 divides the data according to the determination result by the division control unit 170, and generates divided data included in the divided packet to be transmitted this time.
  • the transmission unit 140 corresponding to the wireless communication line used for transmission of the current divided packet transmits the divided packet to be transmitted this time based on the transmitted request modulation method information, that is, according to the transmission result of the previous divided packet. Is generated, modulated, and transmitted.
  • a wireless communication line with a good communication state is used and a wireless communication line with a bad communication state is not used according to the situation where the previously transmitted divided packet is received. . Therefore, it is possible to prevent the occurrence of the problem that the divided packet transmitted this time is not properly received by the data transmission destination communication device 200 due to the poor communication state of the wireless communication line.
  • the data transmission destination communication device 200 If one of the plurality of divided packets based on one data is not properly received by the data transmission destination communication device 200, the data transmission destination communication device 200 combines the remaining divided packets with each other. However, it cannot be restored to the one data. Therefore, the data transmission destination communication device 200 discards the remaining divided packets, requests the data transmission source communication device 100 to retransmit, receives and combines the retransmitted divided packets, and restores the one data. It will be. Therefore, when the problem occurs, all the divided packets based on one data, including the divided packet that was appropriately transmitted and received last time, must be retransmitted.
  • the reception information generation unit 260 generates request modulation method information and communication quality information based on the transmission / reception result of the control signal, and executes the processes after step S205. According to such a configuration, when the communication state deteriorates and is not selected by the division control unit 170 and the communication state of the wireless communication line that has not been used for transmission of the divided packet by the transmission unit 140 is improved, the wireless Transmission / reception of divided packets using the communication line can be resumed.
  • the division control unit 170 since the division control unit 170 performs a simple process in which the determination of the transmission mode of the divided packet is based only on the value of the CNR, the process is quickly performed and the wireless communication line to be used is determined. You can switch quickly.
  • the determination of the transmission mode of the divided packet performed by the division control unit 170 is not limited to only based on the CNR value, but the BER (Bit Error Rate) value, the SNR (Signal to Noise Ratio) value, and the reception This may be performed based on the value of the reception level of the divided packet received by unit 240.
  • FIG. 6 is a block diagram illustrating a configuration example of the data transmission source communication apparatus 102 according to the second embodiment.
  • FIG. 7 is a block diagram illustrating a configuration example of the data transmission destination communication device 202 according to the second embodiment.
  • the division control unit 170 of the data transmission source communication device 100 is configured to determine the transmission mode of the divided packet based on the communication quality information input by the reception unit 150.
  • the reception information generation unit 262 of the data transmission destination communication apparatus 202 determines the transmission mode of the divided packets. Then, transmission mode information indicating the transmission mode of the determination result is transmitted to the data transmission source communication apparatus 102.
  • the communication line selection means is realized by, for example, the reception information generation unit 262.
  • FIG. 8 is a flowchart showing the operation of the data transmission source communication apparatus 102 of the second embodiment.
  • the data dividing unit 130 reads the data input to the input / output port 110 and stored in the buffer 120 (step S301).
  • the data dividing unit 130 divides the data read out in step S301 based on the transmission mode information input by the division control unit 172 (step S302). Then, the data dividing unit 130 inputs the divided data that is the data after the division, the division information, and the division control information to the transmission unit 140 according to the transmission mode information. In this example, it is assumed that the data division unit 130 has input the divided data, the division information, and the division control information to the transmission units 140-1 to 140-3 in the process of step S302.
  • the transmitting units 140-1 to 140-3 generate a divided packet including the modulation scheme information and the divided data, the divided information, and the divided control information input by the data dividing unit 130 (step S303).
  • the transmission units 140-1 to 140-3 perform modulation processing on the divided packets using the modulation scheme indicated by the modulation scheme instruction information (step S304).
  • the transmission units 140-1 to 140-3 transmit the divided packets subjected to the modulation process in the process of step S304 (step S305).
  • the receiving unit 150 receives the request modulation method information and the transmission mode information corresponding to the divided packet transmitted by the transmitting units 140-1 to 140-3 in the process of step S305 (step S306).
  • the receiving unit 150 inputs the request modulation method information received in the process of step S306 to the transmission control unit 160 (step S307). Then, the transmission control unit 160 generates modulation scheme instruction information indicating the modulation scheme indicated by the required modulation scheme information. The transmission control unit 160 inputs the generated modulation scheme instruction information to the transmission unit 140 (step S308).
  • the receiving unit 150 inputs transmission mode information to the division control unit 172 (step S309). Then, the division control unit 172 inputs the transmission mode information input by the reception unit 150 to the data division unit 130 and the transmission unit 140 (step S310).
  • FIG. 9 is a flowchart illustrating the operation of the data transmission destination communication apparatus 202 according to the second embodiment.
  • the reception unit 240 receives the divided packet transmitted by the transmission unit 140 of the data transmission source communication device 102 (step S401).
  • the receiving units 240-1 to 240-3 receive the divided packets transmitted by the transmitting units 140-1 to 140-3 of the data transmission source communication apparatus 102 in the process of step S401.
  • the reception unit 240 inputs the division control information included in the received divided packet to the combination control unit 270.
  • the receiving unit 240 inputs the header information and the divided data included in the divided packet to the data combining unit 230. Further, the receiving unit 240 inputs the received signal of the divided packet to the reception information generating unit 262.
  • the combination control unit 270 instructs the data combining unit 230 to combine the divided data based on the division control information input by the receiving unit 240 (step S402).
  • the division control information indicates that a wireless communication line corresponding to the receiving units 240-1 to 240-3 is used. Therefore, the combining control unit 270 instructs the data combining unit 230 to combine the divided data included in the divided packets received by the receiving units 240-1 to 240-3.
  • the data combining unit 230 combines the divided data with each other based on the division information of the header information included in the divided packet in accordance with the instruction from the combination control unit 270 (step S403). Then, the data combining unit 230 inputs the combined data to the input / output port 210.
  • the input / output port 210 outputs the data input by the data combining unit 230 (step S404).
  • the reception information generation unit 262 generates request modulation method information and transmission mode information based on the reception signal input by the reception unit 240 (step S405). Note that the transmission mode information generation processing performed by the reception information generation unit 262 in step S405 is the same as the processing performed by the division control unit 170 in the first embodiment, for example. Then, the reception information generation unit 260 inputs the generated request modulation method information and transmission mode information to the transmission unit 250.
  • the transmission unit 250 transmits the request modulation method information and the transmission mode information input by the reception information generation unit 262 (step S406).
  • the same effect as that of the first embodiment can be obtained.
  • the reception information generation unit 262 of the data transmission destination communication device 202 since the reception information generation unit 262 of the data transmission destination communication device 202 generates transmission mode information, the processing load on the data transmission source communication device 102 can be reduced.
  • the divided packet is transmitted from the data transmission source communication device to the data transmission destination communication device.
  • the divided packet may be configured to be transmitted from the data transmission destination communication device to the data transmission source communication device. That is, two-way communication may be performed between the data transmission source communication device and the data transmission destination communication device.
  • the data transmission source communication device and the data transmission destination communication device include the components of the data transmission source communication devices 100 and 102 and the components of the data transmission destination communication devices 200 and 202, respectively. .
  • FIG. 10 is a block diagram illustrating a configuration example of the communication device 10 according to the third embodiment.
  • the communication device 10 according to the third embodiment includes a dividing unit 13 and a transmitting unit 14.
  • the communication device 10 corresponds to the data transmission source communication device 100 in the first embodiment shown in FIGS. 1 and 2 or the data transmission source communication device 102 in the second embodiment shown in FIG.
  • the dividing unit 13 corresponds to the data dividing unit 130 in the first and second embodiments shown in FIGS.
  • the transmission unit 14 corresponds to the transmission unit 140 in the first and second embodiments illustrated in FIGS.
  • the dividing unit 13 divides one data.
  • the transmitting unit 14 transmits a divided packet including the data divided by the dividing unit 13 using any of a plurality of wireless communication lines.
  • the transmission part 14 transmits a division
  • the transmission unit 14 transmits the divided packet using the wireless communication line selected according to each communication state. Therefore, a wireless communication line with a good communication state is used, and a wireless communication line with a bad communication state is not used. Therefore, it is possible to prevent the occurrence of the problem that the divided packet transmitted this time is not properly received by the transmission destination communication device due to the poor communication state of the wireless communication line.

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Abstract

Le problème décrit par la présente invention est de fournir un dispositif de communication, un système de communication et un procédé de communication qui peuvent gérer de manière appropriée des changements dans des conditions de communication. La solution selon la présente invention est de fournir un dispositif de communication 10 comprenant une unité de division 13 et une unité de transmission 14. L'unité de division 13 divise un élément de données. L'unité de transmission 14 transmet des paquets divisés comprenant les données divisées par l'unité de division 13, une telle transmission étant effectuée à l'aide de l'une quelconque d'une pluralité de lignes de communication sans fil. L'unité de transmission 14 transmet les paquets divisés à l'aide de la ligne de communication sans fil sélectionnée sur la base d'informations de qualité de communication indiquant des conditions de communication de chacune de la pluralité de lignes de communication sans fil.
PCT/JP2018/009253 2017-03-14 2018-03-09 Dispositif de communication, système de communication, et procédé de communication WO2018168701A1 (fr)

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CN115102571A (zh) * 2022-06-09 2022-09-23 Oppo广东移动通信有限公司 一种干扰抑制装置、控制方法及电子设备

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WO2004114609A1 (fr) * 2003-06-18 2004-12-29 Nippon Telegraph And Telephone Corporation Procede de communication radio par paquets
JP2007060494A (ja) * 2005-08-26 2007-03-08 Nippon Telegr & Teleph Corp <Ntt> ネットワークシステム、送信側振分装置、パケット通信方法、および、パケット通信プログラム
JP2015050746A (ja) * 2013-09-04 2015-03-16 沖電気工業株式会社 パケット通信装置及びシステム

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CN115102571A (zh) * 2022-06-09 2022-09-23 Oppo广东移动通信有限公司 一种干扰抑制装置、控制方法及电子设备

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