WO2015102168A1 - 네트워크 액세스 장치 및 방법 - Google Patents
네트워크 액세스 장치 및 방법 Download PDFInfo
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- WO2015102168A1 WO2015102168A1 PCT/KR2014/004461 KR2014004461W WO2015102168A1 WO 2015102168 A1 WO2015102168 A1 WO 2015102168A1 KR 2014004461 W KR2014004461 W KR 2014004461W WO 2015102168 A1 WO2015102168 A1 WO 2015102168A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/52—Systems for transmission between fixed stations via waveguides
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2581—Multimode transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/32—Reducing cross-talk, e.g. by compensating
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
- H04B3/487—Testing crosstalk effects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
- H04L12/462—LAN interconnection over a bridge based backbone
- H04L12/4625—Single bridge functionality, e.g. connection of two networks over a single bridge
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
Definitions
- the present invention relates to a network access apparatus and method.
- DSL digital subscriber lines
- FDM frequency division multiplexing
- Another way to provide a giga-class transmission service is to replace the home network with an optical fiber.
- this method has a disadvantage in that the cost of replacement is high.
- G.hn technology has also been proposed to provide a wire-based giga-class home network.
- G.hn technology uses one pair of copper wires (for example, power line, telephone line, coaxial line, etc.), while identifying the maximum available frequency band for each transmission medium and employing data traffic management for each medium.
- a network access device and method for connecting a home network to an external broadband network such as an external Ethernet is required.
- a network access device and method capable of real-time status identification and home network management according to a home interval network, rather than a simple connection must be provided.
- Korean Laid-Open Patent Publication No. 10-2012-0068537 discloses an ON device and a synchronization method in a cable network.
- the technology provides optical network devices in cable networks, where edge-quadature amplitude modulation (EQAM) is placed within the optical network device rather than the headend to facilitate the application of firedip and microcells.
- EQAM edge-quadature amplitude modulation
- it does not provide the function to increase the efficiency by monitoring the data transmission in the home network section.
- Korean Patent Laid-Open Publication No. 10-2010-0016092 discloses “GPON OAM using the IEEE 802.1 ag method.” The technique generates a test message at any one of flow points such as OLT or ONT. In other flow points, the information about the network connection status is acquired based on this, which is meaningful in confirming the network connection status, but has a disadvantage in that a home section network cannot be dynamically provisioned.
- a method for configuring and operating a network access device to mitigate interference when the home network is composed of bundled cables is provided.
- a network access apparatus and method capable of extending a network management function to a home section.
- a network access device coupled to a control server through a network and to at least one endpoint via at least one cable, comprising: an interface module for interworking with the network; At least one domain master coupled to the at least one endpoint; An adaptation module for converting a G.hn signal into an Ethernet signal between the domain master and the interface module; A network access device including a processor for controlling the interface module and the at least one domain master is provided. The processor checks the channel state from the domain master, receives the result, reports the result to the control server, and generates and transmits information to the processor to perform provisioning based on the channel state. Based on this, the channel provisioning between the domain master and the endpoint is performed.
- the network comprises an optical fiber terminator (OLT), and the interface module performs an uplink interface to the optical fiber terminator.
- OLT optical fiber terminator
- the adaptation module comprises: at least one adaptation buffer each coupled to the at least one domain master; A scheduler coupled between the interface module and the at least one adaptation buffer.
- at least one pair of the at least one endpoint and the at least domain master may be combined with a copper wire cable.
- a network access method performed in a network access device coupled to a control server via a network and coupled to at least one endpoint via a cable
- the network access device comprises at least one processor and a processor.
- each of the at least one domain master is coupled to the at least one endpoint, performing and registering a pairing between the domain master and the endpoint; Reporting registration from the domain master to the processor; The processor reporting a registration to the control server via the network; Receiving, by the processor, a channel estimation request from the control server through the network and forwarding the request to the domain master; The domain master performing channel assessment with the endpoint; The processor receiving the channel assessment from the domain master and transmitting the channel assessment to the control server through the network, wherein the control server calculates resource provisioning based on the channel assessment, so that the processor determines the network. Receive the resource provisioning through, so that the domain master and the endpoint is provisioned based on this.
- the network may be a broadband network and the domain master and the endpoint may be combined with a bundle cable.
- the control server monitors the signal-to-noise ratio (SNR) for the channel evaluation, if the threshold value is exceeded, requesting the channel evaluation again, and calculates a network parameter for resource provisioning based on the received channel evaluation.
- SNR signal-to-noise ratio
- a domain master performs an operation based on G.hn technology, and channel estimation for a subscriber-side network (for example, a home network) is performed by the domain master.
- the channel evaluation performed as described above is transmitted to the control server through the external network 104, and the control server 102 based on the processor 112 and the domain master 118 in the network access device according to an embodiment of the present invention. Provisioning can be done for the home network. Therefore, it is possible to increase the efficiency of a home network without replacing an optical fiber with a home network that is already built with a telephone line or a power line. In addition, the efficiency of the home network on the subscriber side can be increased without increasing the number of pairings.
- FIG. 1 is a diagram illustrating an Internet service providing system constructed using a network access device according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating a configuration of an interface module 114 according to an embodiment of the present invention.
- FIG 3 is a diagram showing the configuration of the adaptation module 116 according to an embodiment of the present invention.
- FIG. 4 is a diagram illustrating a network access method according to an embodiment of the present invention.
- FIG. 4 illustrates a method of provisioning subscriber-side network resources for more efficient communication.
- FIG. 5 is a diagram for describing resource provisioning of a subscriber-side network during a data in service in a network access device according to an embodiment of the present invention.
- FIG. 6 is a diagram illustrating an example of a network service system constructed using a network access device according to an embodiment of the present invention.
- the uplink side of the network access device 110 is coupled to the control server 102 via the network 104, and the downlink side of the network access device 110 has at least one cable 120a, 120b. , 120c ...) to at least one endpoint 130a, 130b, 130d, 130g, 130h, 130i.
- the network 104 is a broadband network, such as Fiber To The x (FTTx) including Fiber To The Home (FTTH), and may include a fiber termination device such as an OLT at the end.
- the downlink side cables 120a, 120b, and 120c may be bundle cables.
- the network access device 110 may include a processor 112, an interface module 114, an adaptation module 116, and at least one domain master (DM: Domain Master 118a, 118b, 118c, 118d, 118e, 118f ... It is configured to include).
- the interface module 114 performs an interworking function with the optical fiber terminating device of the network on the uplink side.
- Each of the domain masters 118a, 118b, 118c, 118d, 118e, 118f, ... manages the endpoints (EP: 130a-130i) of subscribers coupled to the downlink side and monitors the status of the downlink side tracks.
- G.hn signal is generated to transmit appropriately to the transmission medium.
- the adaptation module 116 is coupled between the at least one domain master 118a, 118b, 118c, 118d, 118e, 118f, ... and the interface module 114 to uplink the G.hn signal on the downlink side. It converts the Ethernet signal on the side or the Ethernet signal on the uplink side into the G.hn signal on the downlink side.
- the processor 112 controls overall operations of the modules included in the network access device 110. In addition, the processor 112 notifies the control server 102 of the normal reception of data received from the uplink-side network, and receives network control related information such as priority, QoS, and traffic type for the corresponding data. . Processor 112 also monitors the downlink side line status via domain masters 118a, 118b, 118c, 118d, 118e, 118f, ... and sends the result to control server 102.
- the control server 102 stores network parameters such as G.hn network parameters for provisioning the downlink side circuit based on the downlink side line state information (subscriber side state information) transmitted from the network access device. Calculate and send it to the network access device.
- the processor 112 provisions the downlink side network, which is the subscriber side line, based on the network parameters transmitted from the control server 102. In order to provision such a downlink side network, communication between the control server 102 and the processor 112 is preferably performed based on a more reliable protocol, such as a protocol such as openflow.
- the interface module 114 includes an interface 202, a physical layer (PHY) 204, and a MAC layer (MAC, 206). It can be configured to include.
- PHY physical layer
- MAC MAC
- the adaptation module 116 includes at least one adaptation buffer 304 (304a, 304b, 304c, 304d,...) And the scheduler 302.
- the scheduler 302 performs scheduling in consideration of traffic characteristics of data to be transmitted to the uplink side and data received at the uplink side. In more detail, the scheduler 302 performs a function to more efficiently transmit data in consideration of whether data to be transmitted or received has a burst characteristic.
- the adaptation buffer 304 performs a function of converting an Ethernet signal and a G.hn signal and a buffer function.
- FIG. 4 is a diagram illustrating a network access method according to an embodiment of the present invention.
- FIG. 4 illustrates a method of provisioning subscriber-side network resources for more efficient communication.
- Copper wire which has been previously established to provide DSL or ADSL-based network services as a subscriber-side network, is paired with one of the domain master 118 and one of the endpoints 130 for more efficient communication. pairing (step 402).
- pairing is performed.
- the domain master registers pairing information using a periodic map message (step 404). That is, the domain master registers with which endpoint it is connected.
- the registered pairing information is notified to the processor 112 by the domain master 118 (step 406).
- the processor 112 reports the pairing information registration to the control server 102 via the network (step 408).
- the control server 102 manages the endpoint database based on the received pairing information.
- the control server 102 also requests channel assessment via the network 104 based on a predetermined (periodically or triggered on event) step 412.
- the processor 112 When the processor 112 receives the channel evaluation request from the control server 102, the processor 112 transmits the channel evaluation request to the domain master 118 (step 414), and channel evaluation is performed between the domain master 118 and the endpoint 130 ( Step 416).
- the channel evaluation result is reported from the domain master 118 to the processor 112 (step 418), and the processor 112 transmits the channel evaluation result to the control server 102 via the network 104 (step 420).
- the control server 102 generates the network parameters required for downlink-side network provisioning by calculating an interference between domain masters based on the channel evaluation result (step 422).
- the control server 102 generates network parameters so that the interference between each domain master 118 is provisioned to be unaffected or minimized.
- Such methods include PSD power control, bit loading allocation, tone spacing, and the like.
- the generated network parameters and the provisioning request are transmitted from the control server 102 to the processor 112 (step 424), and provisioning for downlink side network resources is performed under the control of the processor 112 (step 426). .
- the domain master synchronization request is transmitted to the processor 112 by the control server 102 (step 428), and in response, the processor 112 performs synchronization with the domain masters 118 (step 430).
- Data service between the domain master 118 and the endpoint 130 may be made (step 440).
- FIG. 5 is a diagram for describing resource provisioning of a subscriber-side network during a data in service in a network access device according to an embodiment of the present invention.
- a data service is established between the domain master 118 and the endpoint 130 in step 502.
- the control server 102 transmits the channel evaluation request to the processor 112 while the data service is being performed (step 510).
- Processor 112 sends the received channel assessment request to domain master 118 (step 512), and channel assessment is performed between domain master 118 and endpoint 130 (step 514).
- the channel assessment result is reported to the processor 112 (step 516) and sent by the processor 112 to the control server 102 (step 518).
- the control server 102 performs SNR monitoring on the channel evaluation result (step 502) to detect whether resource provisioning is necessary (step 522).
- the SNR monitoring may exceed a threshold value set by an operator or detect a sudden SNR drop.
- a request for channel reevaluation is passed to the domain master 118 via the processor 112 (step 524, step 526) and the channel between the domain master 118 and the endpoint 130 Evaluation is made again (step 528).
- the channel assessment results are reported to the processor 112 (step 530) and then to the control server 102 via the network 104 (step 532).
- the control server 102 calculates an interference based on the channel re-evaluation result and calculates parameters required for resource provisioning (step 534).
- the network parameters associated with the resource provisioning request are sent to the processor 112 of the network access device via the network 104 (step 536), and based on this, the processor 112 performs network resource provisioning on the subscriber side (step 538). Meanwhile, the domain master synchronization request is transmitted to the processor 112 by the control server 102 (step 540), and in response, the processor 112 performs synchronization with the domain masters 118 (step 542). Data service between the domain master 118 and the endpoint 130 may be made (step 544).
- FIG. 6 is a diagram illustrating an example of a network service system constructed using a network access device according to an embodiment of the present invention.
- a network access device G.hn Access Multiplexer, 110
- endpoints 610 and 620 are coupled through a copper wire cable.
- copper wire cables include telephone lines and UTP.
- endpoint 610 is coupled to a personal computer (PC) 612 via a power line
- PC 612 is coupled to set-top box 614.
- endpoint 620 is coupled to the set-top box 622 through a copper cable such as a telephone line
- the set-top box 622 is coupled to the giga wifi terminal 624.
- the network access device and method according to an embodiment of the present invention generates the network parameters in the control server 102 coupled to the external broadband network for provisioning for the home interval network, the network
- the processor 112 in the access device is responsible for the control for performing provisioning. Therefore, the network in the home section can be managed dynamically.
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Abstract
Description
Claims (14)
- 네트워크를 통하여 컨트롤 서버(control server)에 결합되고 적어도 하나의 케이블을 통하여 적어도 하나의 엔드포인트에 결합되는 네트워크 액세스 멀티플렉서 장치에 있어서,상기 네트워크와 연동하기 위한 인터페이스 모듈과;상기 적어도 하나의 엔드포인트에 결합되어 있는 적어도 하나의 도메인 마스터와;상기 도메인 마스터와 상기 인터페이스 모듈 사이에서 G.hn 신호를 이더넷(ethernet) 신호로 변환하는 어뎁테이션 모듈(adaptation module)과;상기 인터페이스 모듈 및 상기 적어도 하나의 도메인 마스터를 제어하는 프로세서를 포함하는 네트워크 액세스 장치.
- 청구항 1에 있어서,상기 네트워크는 광선로 종단 장치(OLT)를 포함하며,상기 인터페이스 모듈은 상기 광선로 종단 장치에 대한 업링크 인터페이스를 수행하는네트워크 액세스 장치.
- 청구항 2에 있어서,상기 도메인 마스터와 상기 엔드포인트는 번들 케이블로 연결된네트워크 액세스 장치.
- 청구항 2에 있어서,상기 어뎁테이션 모듈은,각각 상기 적어도 하나의 도메인 마스터에 결합되는 적어도 하나의 어뎁테이션 버퍼와;상기 인터페이스 모듈과 상기 적어도 하나의 어뎁테이션 버퍼 사이에 결합되어 있는 스케줄러;를 포함하는 네트워크 액세스 장치.
- 청구항 2에 있어서,상기 적어도 하나의 엔드포인트와 상기 적어도 도메인 마스터 중 적어도 한쌍이 동선케이블로 결합되어 있는 것을 특징으로 하는네트워크 액세스 장치.
- 청구항 1에 있어서,상기 프로세서는 상기 적어도 하나의 도메인마스터와 상기 적어도 하나의 엔드포인트간의 통신에 따라 발생하는 회선의 간섭을 모티터링하여 간섭 정보를 생성하여 상기 컨트롤 서버로 전송하는 것을 특징으로 하는 네트워크 액세스 장치.
- 청구항 6에 있어서,상기 프로세서는 상기 컨트롤 서버가 상기 간섭 정보를 기반으로 결정한 통신 설정 파라미터 값을 수신하는 것을 특징으로 하는 네트워크 액세스 장치.
- 네트워크를 통하여 컨트롤 서버에 결합되고 케이블을 통하여 적어도 하나의 엔드포인트에 결합되는 네트워크 액세스 장치에서 수행되는 네트워크 액세스 방법에 있어서-여기서, 상기 네트워크 액세스 장치는 프로세서와 적어도 하나의 도메인마스터를 포함하며, 상기 적어도 하나의 도메인 마스터는 각각 상기 적어도 하나의 엔드포인터에 결합됨-,상기 도메인 마스터와 상기 엔드포인트 간에 페어링을 수행하고 등록하는 단계;상기 도메인 마스터에서 상기 프로세서로 등록을 보고하는 단계;상기 프로세서가 상기 네트워크를 통하여 상기 컨트롤서버로 등록을 보고하는 단계;상기 프로세서가 상기 네트워크를 통하여 상기 컨트롤서버로부터 채널 평가 요구를 수신하여 상기 도메인 마스터로 전달하는 단계;상기 도메인 마스터가 상기 엔드포인트와 채널 평가를 수행하는 단계;상기 프로세서가 상기 도메인 마스터로부터 상기 채널 평가를 수신하여 상기 네트워크를 통하여 상기 컨트롤서버로 전송하는 단계를 포함하여, 상기 컨트롤 서버가 상기 채널 평가에 기초하여 자원프로비저닝을 산출하여 상기 프로세서로 전송하고, 상기 프로세서는 자원프로비저닝을 기반으로 상기 도메인마스터 및 상기 엔드포인트가 프로비저닝되도록 하는 네트워크 액세스 방법.
- 청구항 8에 있어서,상기 네트워크는 광대역 네트워크인 네트워크 액세스 방법.
- 청구항 8에 있어서,상기 채널 평가는 상기 도메인마스터와 상기 엔드포인간 통신에 의해 발생하는 간섭 정보를 포함하는 네트워크 액세스 방법.
- 청구항 8에 있어서,상기 도메인마스터와 상기 엔드포인트는 번들 케이블에 의해 연결되는 네트워크 액세스 방법.
- 청구항 11에 있어서,상기 번들 케이블은 상기 도에인마스터를 포함하는 복수의 도메인마스터와 상기 엔드포인트를 포함하는 복수의 엔드포인트 각각을 1:1 연결하는 네트워크 액세스 방법.
- 청구항 12에 있어서,상기 복수의 도메인마스터 각각의 데이터 전송 시점과 데이터 수신 시점은 일치되도록 조정되는 네트워크 액세스 방법.
- 청구항 8에 있어서,상기 컨트롤서버는 채널평가에 대한 신호대잡음비(SNR)를 모니터링하여 임계값을 넘어가면, 채널평가를 다시 요구하며, 재수신된 채널평가에 기초하여 자원프로비저닝을 산출하는 네트워크 액세스 방법.
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| US15/100,387 US9866273B2 (en) | 2013-12-30 | 2014-05-19 | Apparatus and method for accessing network |
| EP14875924.4A EP3091675B1 (en) | 2013-12-30 | 2014-05-19 | Apparatus and method for accessing network |
| JP2016536890A JP6506286B2 (ja) | 2013-12-30 | 2014-05-19 | ネットワークアクセス装置及び方法 |
| PH12016501040A PH12016501040B1 (en) | 2013-12-30 | 2016-06-01 | Apparatus and method for accessing network |
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| KR1020130167778A KR101514046B1 (ko) | 2013-12-30 | 2013-12-30 | 네트워크 액세스 장치 및 방법 |
| KR10-2013-0167778 | 2013-12-30 |
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| EP (1) | EP3091675B1 (ko) |
| JP (1) | JP6506286B2 (ko) |
| KR (1) | KR101514046B1 (ko) |
| CN (1) | CN105874729B (ko) |
| PH (1) | PH12016501040B1 (ko) |
| WO (1) | WO2015102168A1 (ko) |
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| WO2015155603A1 (en) * | 2014-04-08 | 2015-10-15 | Marvell World Trade Ltd. | System and method for automatically pairing wired devices |
| KR101632038B1 (ko) * | 2016-02-22 | 2016-06-20 | (주)자람테크놀로지 | G.hn 가입자망 시스템의 적응형 이퀄라이징 방법 및 이를 이용하는 집선장비 |
| KR101627168B1 (ko) * | 2016-03-15 | 2016-06-03 | 라이트웍스 주식회사 | G.hn 기반 FTTdp 가입자망 시스템을 위한 SNR 개선 방법 및 장치 |
| US11296748B2 (en) | 2016-05-11 | 2022-04-05 | Kt Corporation | Network management apparatus, customer premises equipment registration method therefor, and method for providing internet service to customer premises equipment |
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- 2014-05-19 CN CN201480071693.1A patent/CN105874729B/zh active Active
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| US20080225687A1 (en) * | 2007-03-15 | 2008-09-18 | Vladimir Oksman | Multi-domain network with centralized management |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2017505009A (ja) | 2017-02-09 |
| EP3091675B1 (en) | 2019-11-20 |
| CN105874729A (zh) | 2016-08-17 |
| PH12016501040A1 (en) | 2016-07-04 |
| EP3091675A4 (en) | 2017-08-30 |
| US20160308581A1 (en) | 2016-10-20 |
| US9866273B2 (en) | 2018-01-09 |
| CN105874729B (zh) | 2018-11-16 |
| JP6506286B2 (ja) | 2019-04-24 |
| KR101514046B1 (ko) | 2015-06-05 |
| PH12016501040B1 (en) | 2016-07-04 |
| EP3091675A1 (en) | 2016-11-09 |
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