WO2016010192A1 - Dispositif de gestion de réseau pour la fourniture d'internet dans un réseau d'accès, et procédé de gestion de réseau l'utilisant - Google Patents

Dispositif de gestion de réseau pour la fourniture d'internet dans un réseau d'accès, et procédé de gestion de réseau l'utilisant Download PDF

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Publication number
WO2016010192A1
WO2016010192A1 PCT/KR2014/009150 KR2014009150W WO2016010192A1 WO 2016010192 A1 WO2016010192 A1 WO 2016010192A1 KR 2014009150 W KR2014009150 W KR 2014009150W WO 2016010192 A1 WO2016010192 A1 WO 2016010192A1
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WO
WIPO (PCT)
Prior art keywords
subscriber station
data
network management
line
transmitting
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/KR2014/009150
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English (en)
Korean (ko)
Inventor
박노욱
박형진
정인택
김종학
윤광열
하태우
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.)
KT Corp
Original Assignee
KT Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020140115443A external-priority patent/KR101531040B1/ko
Application filed by KT Corp filed Critical KT Corp
Publication of WO2016010192A1 publication Critical patent/WO2016010192A1/fr
Priority to PH12017500099A priority Critical patent/PH12017500099A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks

Definitions

  • the present invention relates to a network management apparatus for providing the Internet in an access network and a network management method using the same.
  • DSL digital subscriber line
  • UDP unshielded twisted pair cable
  • the existing method using DSL technology provides Internet service using a bundle cable in the premises. Therefore, the existing DSL technology requires a complicated technology due to interference in the bundle cable and could not provide a service over 100Mbps.
  • 2pair bonding technology for providing Internet speed of 100Mbps or more using the existing DSL technology is expensive due to the additional cable, there is a difficulty in the interference between the lines.
  • the present invention proposes a network management apparatus for providing the Internet in a network structure connected by a bundle cable and a network management method using the same.
  • the network management method of the present invention is a method for managing a network to provide the Internet in an access network structure in which a network management device and at least one subscriber station are connected through a bundle cable, transmitting a test signal with the at least one subscriber station.
  • Receiving a response signal for the transmission analyzing the received response signal, determining parameters for optimizing the channel state in consideration of a response signal of an adjacent channel or an adjacent line, and the determined parameter And transmitting and receiving data to and from the subscriber station.
  • Transmitting and receiving data with the subscriber station may include controlling to transmit data simultaneously in synchronization when transmitting data if at least two subscriber stations are connected to the same line.
  • the transmitting and receiving of data with the subscriber station may further include controlling to transmit the data in a time division manner by allocating a time slot when transmitting data, when only one subscriber station is connected to the same line.
  • the transmitting of the test signal may include establishing a channel with the at least one subscriber station, and setting the channel may include resetting the channel when a network environment is changed. have.
  • the setting of the channel may include setting different channels for each of the at least one subscriber station.
  • the determining of the parameters may include repeatedly transmitting and receiving different parameter values with the subscriber station to determine an optimal parameter value.
  • Receiving the response signal for the transmission may include receiving a signal including the reception state information of the test signal.
  • the reception state information of the test signal may include at least one of information on signal transmission, such as arrival time, reception strength, or error information of the test signal.
  • the transmitting and receiving of data may include determining a type of traffic to be transmitted to a subscriber station, and if the type of the traffic is traffic providing a paid service, assigning a priority to a corresponding slot. .
  • the network management apparatus of the present invention is a control unit for controlling to change a parameter for transmitting and receiving data with at least one subscriber station according to the line state in the bundle cable, and controls to transmit and receive a test signal with the at least one subscriber station, It includes a transmission control unit for controlling to transmit and receive data with the subscriber station using the parameter.
  • the operation controller may include a parameter determiner that determines a parameter to transmit and receive a signal according to a line state with the at least one subscriber station, and determines a parameter in consideration of an adjacent channel.
  • the parameter determining unit may determine that the line state is satisfactory when the service quality such as bandwidth or error rate according to the line state is included in the preset range, and determine the satisfactory line state parameter as an optimal parameter value. have.
  • the transmission control unit may determine a line state for each line in the bundle cable, and may include a line identification unit for determining a line state of a line connected to the subscriber station by transmitting and receiving a test signal with the subscriber station.
  • the line identification unit may receive a signal corresponding to the test signal from the subscriber station receiving the test signal, and determine the line state of a line connected to the subscriber station using the signal received from the subscriber station.
  • the signal received from the subscriber station may include at least one or more of information on signal transmission, such as arrival time, reception strength, or error information of the test signal.
  • the transmission control unit may include a synchronization unit that controls to simultaneously transmit data in synchronization with a plurality of subscriber stations connected to the same line.
  • the transmission control unit may include a priority allocation unit for identifying a type of traffic transmitted to the subscriber station and assigning a priority according to the type of traffic.
  • the priority assigning unit may control to allocate a priority to a corresponding slot when the type of the traffic is traffic providing a pay service.
  • the transmission control unit When providing data using a bundle cable of a subscriber station and multiple lines, the transmission control unit transmits data in a time division manner by allocating a time slot when transmitting data, when only one subscriber station is connected to the same line. Can be controlled.
  • the transmission control unit may control to transmit data simultaneously in synchronization when transmitting data, when at least a plurality of subscriber stations are connected to the same line. have.
  • the present invention by determining the characteristics of the circuit in the network structure connected by the bundle cable to determine parameters or control the traffic type to transmit and receive data, to prevent interference between the lines in the bundle cable, to provide a more stable service environment To provide.
  • FIG. 1 is a diagram illustrating a copper line-based access network structure according to an embodiment of the present invention.
  • FIG. 2 is a flowchart illustrating a process of applying an optimal profile according to an embodiment of the present invention.
  • FIG. 3 is a diagram schematically illustrating a network management apparatus for providing the Internet in an access network according to an embodiment of the present invention.
  • FIG. 4 is a diagram briefly illustrating a process of a network management apparatus measuring a subscriber device and line characteristics according to an embodiment of the present invention.
  • FIG. 5 is a diagram illustrating an example of transmitting data in synchronization with a copper wire-based access network structure according to an embodiment of the present invention.
  • FIG. 6 is a diagram illustrating an example of transmitting data by allocating time slots.
  • FIG. 7 is a diagram illustrating a process of assigning priorities according to traffic types according to one embodiment of the present invention.
  • ... unit means a unit for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software.
  • FIG. 1 is a diagram illustrating a copper line-based access network structure according to an embodiment of the present invention.
  • the network management system for providing the Internet in the access network shows only the schematic configuration necessary for explanation according to an embodiment of the present invention, but is not limited to such a configuration.
  • a network management system uses a subscriber terminal using a master equipment (ME), which is a network management apparatus 100, and a bundle cable 10 in a copper wire-based access network.
  • ME master equipment
  • CPE customer premises equipment
  • the network management apparatus 100 configures a giga Internet network by connecting a plurality of modems using copper wires.
  • the line connected to the network management apparatus 100 and the respective CPEs 200a to 200f includes a plurality of lines 20a to 20c, and the types and lengths of the lines are different. In this case, it is difficult to provide the same quality network service, and it is difficult to guarantee the quality of service to the subscriber by connecting multiple CPEs to one port of the master device as well as interference between adjacent lines by the bundle cable.
  • the network management system grasps the characteristics of the circuits connected to the bundle cable, and manages to transmit and receive data by determining a parameter having a good quality of service according to each circuit state.
  • data transmission and reception characteristics may vary depending on the bundle cable and the cable type and distance connected to each CPE, and because the cable connected to the master device side and the cable type connected to the CPE side have different loss, impedance, Delay time may vary.
  • the network management system simultaneously transmits a test signal preset to the CPE from the network management apparatus 100 and receives the result received from the CPE to measure the line characteristics. Based on the result, the network management system can grasp the transmission strength according to the cable distance between the network management device 100 and the CPE, the band plan according to the frequency response characteristics, and the like.
  • the circuit characteristic measurement may be periodically performed when the network management apparatus 100 and the CPE are initially connected or when transmission characteristics including an external environment change.
  • the data transmission / reception characteristic reflection information between the network management apparatus 100 and the CPE may be periodically updated using a MAP message which is a control signal of G.hn.
  • the network management system can reduce the production cost by configuring the network management device 100 and the CPE in the same block, the network matching portion is made of a detachable modular network connected You can choose to cook according to.
  • the network management system can transmit data to N CPEs in one port of the network management apparatus 100, and provides a giga-class Internet in a 1: N structure of an on-premises copper cable cable environment. can do.
  • FIG. 2 is a flowchart illustrating a process of applying an optimal profile according to an embodiment of the present invention. The following flowchart is described using the same reference numerals in connection with the configuration of FIG. 1.
  • an environment change for example, adding a new CPE or changing a noise environment, etc.
  • the ME 100 and the CPEs 200a to 200f proceed with a channel estimation initialization process (S100 and S102).
  • the ME 100 requests each CPE to transmit a probe signal, which is a test signal, to check the channel state, and the CPE receiving the request transmits the probe frame to the ME 100 (S104 and S106). .
  • the ME 100 analyzes the received probe frame to calculate the performance of each CPE channel. In addition, in order to optimize the calculated channel performance, the ME 100 repeats the probe frame transmission request and the reception of a modified parameter (S108, S110).
  • the ME 100 finds optimal parameters (eg, PSD, power, bit allocation, IFG, etc.) through repeated channel performance calculations.
  • the extracted parameters are transmitted to the CPE so that the CPE can be applied not only when the ME 100 transmits to the CPE but also when the CPE transmits to the ME 100 (S112 and S114).
  • the ME 100 and the CPEs 200a, 200b, 200d, and 200n may transmit data based on the extracted parameters for each node, and may provide an optimal performance by applying an optimized profile (S116). .
  • the CPE When the CPE receives a data request from the set-top box or the VoIP terminal, the CPE requests network resource reservation to the ME 100.
  • the ME 100 which has been requested for resource reservation, schedules requests of each CPE so that the corresponding data can be allocated a specific time slot.
  • time slots allocated in this way are included in a control message transmitted together with the data transmission, and are known to each CPE.
  • Premium services can be provided seamlessly through timeslot allocation, which is an advantage of the time division duplex (TDD) scheme.
  • TDD time division duplex
  • FIG. 3 is a diagram schematically illustrating a network management apparatus for providing an Internet in an access network according to an embodiment of the present invention.
  • the network management apparatus only shows a schematic configuration necessary for explanation according to an embodiment of the present invention, but is not limited to such a configuration.
  • the network management apparatus 100 for providing the Internet in an access network includes a network matching unit 110, an operation control unit 120, and a transmission medium matching unit according to an embodiment of the present invention. 130 and the transmission control unit 140.
  • the network matching unit 110 connects the network management device 100 with an external network or another network.
  • Network matching unit 110 may be selected according to the network to be produced by connecting a removable modular.
  • the operation control unit 120 controls to perform various operations and controls to change a parameter for transmitting and receiving data for each line.
  • the operation control unit 120 includes a parameter determination unit 122 according to an embodiment of the present invention.
  • the parameter determiner 122 determines a parameter for transmitting and receiving a signal when the line state with the subscriber station is satisfactory.
  • the transmission medium matching unit 130 is connected to the subscriber station, transmits and receives a test signal or data, and checks the connection state with the network management apparatus 100 for each line or for each subscriber station.
  • the transmission control unit 140 controls to transmit and receive data with the subscriber station using the determined parameter determined by the parameter determination unit 122.
  • the transmission control unit 140 schedules a data request signal of the subscriber station and allocates a timeslot.
  • the transmission controller 140 allocates timeslots when transmitting data in a time division manner when only one subscriber station is connected to the same line. Control to send data.
  • the transmission control unit 140 transmits data simultaneously in synchronization when transmitting data, if at least a plurality of subscriber stations are connected to the same line. Can be controlled.
  • the transmission control unit 140 includes a synchronization unit 142, a priority assignment unit 144, and a line identification unit 146 according to an embodiment of the present invention.
  • the synchronization unit 142 controls to transmit data simultaneously in synchronization when transmitting data to a plurality of subscriber stations connected to the same line.
  • the priority allocating unit 144 grasps the type of traffic transmitted to the subscriber station and controls to allocate the priority according to the type of traffic.
  • the transmission control unit 140 may assign a priority to a time slot associated with the corresponding subscriber.
  • the line identifying unit 146 transmits and receives a test signal to and from the subscriber station, and determines a line state of a line connected to the subscriber station by using the transmitted and received test signal.
  • the line identifying unit 146 may receive a signal corresponding to the test signal from the subscriber station receiving the test signal, and determine the line state of the line connected to the corresponding subscriber station using the signal received from the subscriber station.
  • the signal received from the subscriber station includes at least one information about signal transmission, such as arrival time, reception strength, or error information of the test signal.
  • FIG. 4 is a diagram briefly illustrating a process of a network management apparatus measuring a subscriber device and line characteristics according to an embodiment of the present invention. The following flowchart is described using the same reference numerals in connection with the configuration of FIG. 1.
  • the network management apparatus 100 transmits a test signal to at least one or more subscriber stations, and receives a signal corresponding to the test signal from the subscriber terminal that receives the test signal (S100 and S102).
  • the signal received from the subscriber station includes information about signal transmission, such as signal arrival time, signal reception strength or transmission / reception error information.
  • the network management apparatus 100 determines whether the service quality state is satisfactory.
  • the case where the quality of service condition is satisfactory includes a case where a bandwidth, an error rate, or the like according to a line state with a subscriber station is included in a preset range.
  • test signal having a new parameter is calculated and obtained using the reception state information, and the test signal is retransmitted to the subscriber station (S106).
  • the test signal is received from the subscriber station, and when the quality of service of the test signal transmitted by the subscriber station is also satisfactory, the transmission parameter with the corresponding subscriber station is determined (S108 to S114).
  • the network management apparatus 100 determines the data transmission method between the network management apparatus 100 which is a master device and each CPE which is a subscriber station, the network management apparatus 100 simultaneously transmits data to each CPE to provide a short range ( Near End) Reduce interference.
  • Each CPE may transmit data in accordance with each line characteristic so as to reduce far end interference of a signal received from the network management apparatus 100.
  • 5 is a diagram illustrating an example of transmitting data in synchronization in a copper line-based access network structure according to an embodiment of the present invention.
  • 6 is a diagram illustrating an example of transmitting data by allocating time slots.
  • IPTV or VoIP using the Internet is a paid service in which subscribers pay a certain amount and should not be broken or degraded in providing the service.
  • a bandwidth allocation technique in a 1: N structure is required along with an interference mitigation technique in a bundle cable.
  • the network management apparatus 100 controls to simultaneously synchronize data transmission to the CPE.
  • the first line 20a is allocated time slots corresponding to Tx and Rx to transmit data in a time division (TDD) manner.
  • the second line 20b or the third line 20c is connected to two or more CPEs 200b and 200c and 200d to 200f, the second line 20b and the third line 20c are adjacent to each other to mitigate interference with adjacent channels in the copper wire bundle cable environment of the premises.
  • the data of each CPE is transmitted and received according to the Tx and Rx timing of the channel.
  • the network management apparatus 100 controls to transmit data by allocating time slots according to the amount of data transmitted between the network management apparatus 100 and each CPE.
  • the network management apparatus 100 may control to allocate and transmit a priority to a specific time slot when transmitting the traffic in order to improve the quality of the Internet-based pay service.
  • FIG. 7 is a diagram illustrating a process of assigning priorities according to traffic types according to one embodiment of the present invention. The following flowchart is described using the same reference numerals in connection with the configuration of FIG. 1.
  • the network management apparatus 100 determines the type of the corresponding traffic (S200 and S202).
  • the network management apparatus 100 assigns priority to time slots of the corresponding traffic (S204 and S206).
  • the network management apparatus 100 does not assign priority to time slots of the corresponding traffic when the type of the traffic is simple internet traffic instead of paid service traffic (S208).
  • the network management apparatus 100 controls to transmit data by integrating time slots to which priority is assigned and time slots to which no priority is assigned (S210).
  • the network management apparatus 100 allocates time slots for IPTV traffic to the corresponding subscribers without loss of IPTV traffic when paid IPTV traffic comes from a higher network, and corresponding time slots. Give priority to other traffic by giving priority to.
  • the network management apparatus for providing the Internet in the access network and the network management method using the same in the access network control the transmission and reception of data by determining the characteristics of the circuit and determining the type of traffic or the type of traffic in the copper-based network structure. By doing so, interference between lines can be prevented, and an environment capable of providing more stable services can be provided.
  • the network management system transmits data to N CPEs in at least one or more ports of the network management apparatus 100, and provides a giga-class Internet in the 1: N structure of the premises copper cable. Provide an environment for doing this.
  • the embodiments of the present invention described above are not only implemented through the apparatus and the method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiments of the present invention or a recording medium on which the program is recorded.
  • a recording medium can be executed not only in the server but also in the user terminal.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention concerne un procédé de gestion de réseau pour la fourniture d'Internet dans une structure de réseau d'accès dans laquelle un dispositif de gestion de réseau est connecté à un ou plusieurs terminaux d'abonnés via un câble en faisceau. Un procédé de gestion de réseau selon la présente invention comprend les étapes consistant à : configurer un canal pour un ou plusieurs terminaux d'abonnés, et transmettre un signal de test de sorte à confirmer l'état de canal du canal ; recevoir un signal de réponse à la transmission ; analyser le signal de réponse reçu et déterminer, d'après un signal de réponse d'une ligne adjacente ou d'un canal adjacent, des paramètres permettant d'optimiser l'état de canal ; et transmettre des données vers, et en recevoir depuis, les terminaux d'abonnés au moyen des paramètres déterminés.
PCT/KR2014/009150 2014-07-17 2014-09-30 Dispositif de gestion de réseau pour la fourniture d'internet dans un réseau d'accès, et procédé de gestion de réseau l'utilisant Ceased WO2016010192A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PH12017500099A PH12017500099A1 (en) 2014-07-17 2017-01-16 Network management apparatus for providing internet in access network and network management method using same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020140090623 2014-07-17
KR10-2014-0090623 2014-07-17
KR1020140115443A KR101531040B1 (ko) 2014-09-01 2014-09-01 엑세스 네트워크에서 인터넷을 제공하기 위한 네트워크 관리 장치 및 이를 이용한 네트워크 관리 방법
KR10-2014-0115443 2014-09-01

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WO2016010192A1 true WO2016010192A1 (fr) 2016-01-21

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PH (1) PH12017500099A1 (fr)
WO (1) WO2016010192A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018012820A1 (fr) * 2016-07-13 2018-01-18 주식회사 케이티 Appareil d'atténuation de brouillage et procédé d'atténuation de brouillage utilisant ledit appareil
US11072123B2 (en) 2017-01-18 2021-07-27 Hewlett-Packard Development Company, L.P. Deviant control in additive manufacturing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006507783A (ja) * 2002-11-19 2006-03-02 テルコーディア テクノロジーズ インコーポレイテッド デジタル加入者線の管理のための自動化されたシステムおよび方法
WO2007044326A2 (fr) * 2005-10-04 2007-04-19 Adaptive Spectrum And Signal Alignment, Inc. Système dsl
KR101137164B1 (ko) * 2003-03-03 2012-04-23 마이크로소프트 코포레이션 단-대-단 측정에 기초한 네트워크 상으로의 데이터 스트림 유입 제어

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006507783A (ja) * 2002-11-19 2006-03-02 テルコーディア テクノロジーズ インコーポレイテッド デジタル加入者線の管理のための自動化されたシステムおよび方法
KR101137164B1 (ko) * 2003-03-03 2012-04-23 마이크로소프트 코포레이션 단-대-단 측정에 기초한 네트워크 상으로의 데이터 스트림 유입 제어
WO2007044326A2 (fr) * 2005-10-04 2007-04-19 Adaptive Spectrum And Signal Alignment, Inc. Système dsl

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018012820A1 (fr) * 2016-07-13 2018-01-18 주식회사 케이티 Appareil d'atténuation de brouillage et procédé d'atténuation de brouillage utilisant ledit appareil
US11072123B2 (en) 2017-01-18 2021-07-27 Hewlett-Packard Development Company, L.P. Deviant control in additive manufacturing

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MY181588A (en) 2020-12-29

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