WO2024189858A1 - 通信システム、送信機、通信方法、および通信用プログラム - Google Patents

通信システム、送信機、通信方法、および通信用プログラム Download PDF

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Publication number
WO2024189858A1
WO2024189858A1 PCT/JP2023/010174 JP2023010174W WO2024189858A1 WO 2024189858 A1 WO2024189858 A1 WO 2024189858A1 JP 2023010174 W JP2023010174 W JP 2023010174W WO 2024189858 A1 WO2024189858 A1 WO 2024189858A1
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WO
WIPO (PCT)
Prior art keywords
frame
transmitted
transmitter
receiver
frames
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Ceased
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PCT/JP2023/010174
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English (en)
French (fr)
Japanese (ja)
Inventor
仁 長谷川
利文 宮城
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NTT Inc
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Nippon Telegraph and Telephone Corp
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Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to PCT/JP2023/010174 priority Critical patent/WO2024189858A1/ja
Priority to JP2025506388A priority patent/JPWO2024189858A1/ja
Publication of WO2024189858A1 publication Critical patent/WO2024189858A1/ja
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering

Definitions

  • This disclosure relates to a communication system, a transmitter, a communication method, and a communication program that use technology to prevent frame order reversals.
  • the transmitter may split the frame and send it across multiple transmission paths.
  • the receiver must receive each of the split frames and recombine them without changing the original frame order.
  • Patent document 1 discloses a technology in which a packet receiving device receives and processes packets with sequence numbers added. By processing packets based on the sequence numbers, it is possible to prevent packets from being reversed in order.
  • the first objective of this disclosure is to provide a communication system that can achieve optimal control to prevent frame order reversals and improve communication efficiency.
  • a second object of this disclosure is to provide a transmitter that achieves optimal control to prevent frame order reversals and improve communication efficiency.
  • the third objective of this disclosure is to provide a communication method that achieves optimization control to prevent frame order reversals and improve communication efficiency.
  • the fourth objective of this disclosure is to provide a communication program that achieves optimization control to prevent frame order reversals and improve communication efficiency.
  • the first aspect of the present disclosure is A transmitter; a receiver that connects a plurality of transmission paths between the transmitter and the receiver; Equipped with the transmitter is configured to perform a decision process to determine whether a frame to be transmitted is a high priority frame; If the frame to be transmitted is a high priority frame, The transmitter includes: a first allocation process for allocating the frame to be transmitted to a single transmission path among the plurality of transmission paths and transmitting the frame to the receiver; If the frame to be transmitted is not a high priority frame, dividing the frame to be transmitted; a second allocation process of allocating the divided frames to the plurality of transmission paths in accordance with a first predetermined rule and transmitting the frames to the receiver; is configured to run The receiver includes: receiving a frame from the transmitter; a recombination process for recombining the received frames according to a second predetermined rule; Preferably, the communication system is configured to:
  • the second aspect is A transmitter that connects a plurality of transmission paths to a receiver, configured to perform a determination process for determining whether a frame to be transmitted is a high priority frame; If the frame to be transmitted is a high priority frame, a first allocation process for allocating the frame to be transmitted to a single transmission path among the plurality of transmission paths and transmitting the frame to the receiver; If the frame to be transmitted is not a high priority frame, dividing the frame to be transmitted; a second allocation process for allocating the divided frames to be transmitted to the plurality of transmission paths in accordance with a predetermined rule and transmitting the frames to the receiver;
  • the method is configured to execute:
  • the third aspect is A transmitter that connects multiple transmission paths to a receiver, determining whether a frame to be transmitted by the frame transmitting unit is a high priority frame; If the frame to be transmitted is a high priority frame, The transmitter, allocating the frames to be transmitted to a single transmission path among the plurality of transmission paths and transmitting the frames to a receiver; If the frame to be transmitted is not a high priority frame, The transmitter, Segmenting the to-be-transmitted frame; Allocating the divided frames to be transmitted to the plurality of transmission paths in accordance with a first predetermined rule and transmitting the frames to the receiver; Including, The receiver, Receiving a frame; recombining the received frames according to a second predetermined rule;
  • the method includes:
  • the fourth aspect is A communication program to be executed by a transmitter that connects a plurality of transmission paths between the transmitter and a receiver, The transmitter, a first communication program for executing a determination process for determining whether a frame to be transmitted is a high priority frame; if the frame to be transmitted is a high priority frame, a second communication program for executing a first allocation process for allocating the frame to be transmitted to a single transmission path among the plurality of transmission paths and transmitting the frame to the receiver; if the to-be-transmitted frame is not a high priority frame, dividing the frame to be transmitted; a second allocation process for allocating the divided frames to be transmitted to the plurality of transmission paths in accordance with a first predetermined rule and transmitting the frames to the receiver; A third communication program for executing the above. It is preferred that the compound contains
  • FIG. 1 is a configuration example of a communication system according to a first embodiment of the present disclosure.
  • 1 is a block diagram showing a detailed configuration example of a communication system according to a first embodiment of the present disclosure.
  • 4 is a flowchart of a process executed by a transmitter and a receiver according to the first embodiment of the present disclosure.
  • First embodiment 1 illustrates an example configuration of a communication system 100 according to a first embodiment of the present disclosure.
  • the communication system 100 includes a transmitter 110 and a receiver 120.
  • the transmitter 110 and the receiver 120 connect a plurality of physical transmission paths 10 to perform communication.
  • the transmitter 110 executes a process to determine whether the frame to be transmitted is a high priority frame.
  • the determination of whether the frame is a high priority frame is made based on the QoS color (Quality of Service color, hereafter referred to as QoS) implemented in the frame.
  • QoS Quality of Service color
  • frames that are not high priority frames are referred to as low priority frames.
  • a judgment process based on QoS can be performed by referencing the CoS value in the CoS (Class of Service) field in the VLAN (Virtual Local Area Network) tag.
  • CoS Class of Service
  • VLAN Virtual Local Area Network
  • CoS value threshold value for judging high priority frames shown here is just an example, and the threshold value is determined as appropriate depending on the usage environment of the communication system 100.
  • the transmitter 110 analyzes the frame to be transmitted and performs an identification process to identify the VLAN assigned to the user to which the frame is addressed.
  • the VLAN is identified based on an identifier implemented in the frame.
  • the VLAN identified by the identification process is referred to as the identified VLAN 12.
  • the transmitter 110 performs a binding process to bind the identified VLAN 12 to one of the multiple transmission paths 10.
  • the transmission path 10 to which the identified VLAN 12 is bound is referred to as the first transmission path 11.
  • the transmitter 110 executes a first allocation process to allocate the frame to be transmitted to the first transmission path 11 for transmission.
  • a first allocation process to allocate the frame to be transmitted to the first transmission path 11 for transmission.
  • the transmitter 110 executes a second allocation process in which the frame to be transmitted is divided and then allocated to the multiple transmission paths 10 in descending order of surplus bandwidth for transmission.
  • the second allocation process allocation is not necessarily required in descending order of surplus bandwidth, and the allocation destination may be determined based on quality such as maximum communication speed, communication capacity, and latency. Furthermore, it is not necessary to use all of the multiple transmission paths 10 as the allocation destinations for the divided frames.
  • the receiver 120 receives the frames from the transmitter 110.
  • the receiver 120 then performs a recombination process to recombine the frames in the order in which they arrived. This allows the frames to be reproduced.
  • the division and allocation of low-priority frames is performed by serial processing. Therefore, even in the case of low-priority frames, the transmitter 110 does not need to add numbers to each of the divided frames. Even without adding numbers, the receiver 120 can recombine the low-priority frames by processing the divided frames in the order in which they arrive.
  • FIG. 2 is a block diagram showing a detailed configuration example of the communication system 100 according to the first embodiment of the present disclosure.
  • the frame receiving unit 111 receives a frame from an upper layer or another transmitter.
  • the QoS identifying unit 112 executes the above-mentioned determination process.
  • the VLAN identifying unit 113 executes the above-mentioned identification process and bundling process.
  • the surplus bandwidth calculating unit 114 calculates the surplus bandwidth for each transmission path 10.
  • the frame sorting unit 115 executes the first sorting process or the second sorting process based on the result of the determination process, and transmits the frame to the receiver 120.
  • the frame receiving unit 121 receives the frames transmitted from the transmitter 110.
  • the frame combining unit 122 executes the recombination process.
  • the frame transmitting unit 123 transmits the frames to other receivers.
  • the other receivers referred to here are, for example, terminal devices owned by the users.
  • FIG. 3 is a flowchart of the process executed by the transmitter 110 and the receiver 120 according to the first embodiment of the present disclosure.
  • the QoS identification unit 112 of the transmitter 110 executes a determination process to determine whether or not the frame to be transmitted is a high priority frame (step S01). If it is a high priority frame, the VLAN identification unit 113 executes an identification process and a bundling process (step S02). Furthermore, the frame distribution unit 115 executes a first distribution process (step S03).
  • the surplus bandwidth calculation unit 114 calculates the surplus bandwidth for each transmission path 10 (step S04). Furthermore, the frame distribution unit 115 executes a second distribution process (step S05). Furthermore, the receiver 120 receives the frame, and the frame synthesis unit 122 executes a recombination process (step S06).
  • the processing performed by the transmitter 110 and the receiver 120 may be executed by a communication program using a computer equipped with a CPU and memory and storing a program in the memory.
  • the processing may be executed by a communication program using an integrated circuit such as an FPGA (Field Programmable Gate Array).
  • the communication program may be provided by being recorded on a storage medium, or may be provided via a network.
  • the present disclosure makes it possible to provide a communication system, transmitter, communication method, and communication program that realizes optimization control to prevent frame order reversals and improve communication efficiency.
  • each of the multiple transmission paths 10 is a transmission path in which multiple channels are multiplexed, and therefore it is possible to associate multiple VLANs.
  • the communication on the multiple transmission paths 10 may be wired or wireless, and the above-mentioned effects can be obtained in either case.
  • the recombination process performed by the receiver 120 recombines the received frames in the order in which they arrived, but the recombination does not necessarily have to be performed in the order in which they arrived.
  • a number may be assigned to each of the divided frames, and the receiver 120 may perform the recombination process based on these numbers. In this case, the same effect as described above can be obtained.
  • 10 Transmission path 11 First transmission path, 12 Identified VLAN, 100 Communication system, 110 Transmitter, 111 Frame receiver, 112 QoS identification unit, 113 VLAN identification unit, 114 Excess bandwidth calculation unit, 115 Frame distribution unit, 120 Receiver, 121 Frame receiver, 122 Frame synthesis unit, 123 Frame transmitter

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
PCT/JP2023/010174 2023-03-15 2023-03-15 通信システム、送信機、通信方法、および通信用プログラム Ceased WO2024189858A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2023/010174 WO2024189858A1 (ja) 2023-03-15 2023-03-15 通信システム、送信機、通信方法、および通信用プログラム
JP2025506388A JPWO2024189858A1 (https=) 2023-03-15 2023-03-15

Applications Claiming Priority (1)

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PCT/JP2023/010174 WO2024189858A1 (ja) 2023-03-15 2023-03-15 通信システム、送信機、通信方法、および通信用プログラム

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007288491A (ja) * 2006-04-17 2007-11-01 Nippon Telegr & Teleph Corp <Ntt> フレームの分割回路、該分割回路を用いた伝送システム及び方法
WO2013125177A1 (ja) * 2012-02-22 2013-08-29 日本電気株式会社 通信装置とトラヒック制御方法
JP2016167851A (ja) * 2011-11-21 2016-09-15 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ 混合された通信ネットワークにおけるパス情報を提供すること
JP2017011432A (ja) * 2015-06-19 2017-01-12 日本放送協会 送信機、受信機及び送受信機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007288491A (ja) * 2006-04-17 2007-11-01 Nippon Telegr & Teleph Corp <Ntt> フレームの分割回路、該分割回路を用いた伝送システム及び方法
JP2016167851A (ja) * 2011-11-21 2016-09-15 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ 混合された通信ネットワークにおけるパス情報を提供すること
WO2013125177A1 (ja) * 2012-02-22 2013-08-29 日本電気株式会社 通信装置とトラヒック制御方法
JP2017011432A (ja) * 2015-06-19 2017-01-12 日本放送協会 送信機、受信機及び送受信機

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