CN107465541B - GPON remote equipment and management method thereof - Google Patents
GPON remote equipment and management method thereof Download PDFInfo
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- CN107465541B CN107465541B CN201710619975.6A CN201710619975A CN107465541B CN 107465541 B CN107465541 B CN 107465541B CN 201710619975 A CN201710619975 A CN 201710619975A CN 107465541 B CN107465541 B CN 107465541B
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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
- H04L41/12—Discovery or management of network topologies
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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
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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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
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0797—Monitoring line amplifier or line repeater equipment
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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
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
- H04B10/2933—Signal power control considering the whole optical path
- H04B10/2939—Network aspects
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Abstract
The invention discloses a GPON remote device and a management method thereof, relating to the technical field of network communication. Meanwhile, the information data quantity collected by the remote equipment transmitted to the OLT equipment by using the PLOAM message is small, and the normal service communication between the OLT equipment and the ONU equipment cannot be influenced.
Description
Technical Field
The invention relates to the technical field of network communication, in particular to GPON remote equipment and a management method thereof.
Background
The GPON (Gigabit-CapablePON) technology is a broadband passive optical integrated access standard based on ITU-T G.984.x standard, has the advantages of high bandwidth, high efficiency, large coverage area, rich user interfaces and the like, and is an ideal technology for realizing broadband and integrated transformation of access network services. As shown in fig. 1, the basic structure of the device based on the GPON technology is composed of an OLT (optical line terminal) at the central office end, ONTs/ONUs (optical network terminals or optical network units) at the user end, an ODN (optical distribution network) composed of a single-mode fiber (SMfiber) and a passive optical Splitter (Splitter), and a network management system.
In the process of FTTH construction, the optical fiber resource is found to be a big key factor for restricting the FTTH construction, the existing optical fiber resource is limited, and the optical cable resource is very short. Meanwhile, due to light splitting attenuation, only a 5km range can be covered in 1:64 light splitting, and service coverage cannot be realized in part of regions. In order to solve the problems of resource shortage and coverage distance of the FTTH optical cable, PON fiber aggregation remote equipment is generally used.
At present, there are several schemes for PON pulling (reacxtender):
OA (optical amplifiers) scheme: i.e. both upstream and downstream are implemented using optical amplifier schemes.
OEO (opto-electro-optical) regenerator scheme: i.e. both upstream and downstream are implemented using an OEO regenerator scheme.
OA and OEO mixing protocol: namely, the OA scheme is selected for uplink, and the OEO scheme is selected for downlink; or the uplink adopts the OEO scheme and the downlink adopts the OA scheme.
No matter which scheme is adopted, the current GPON remote equipment is plug-and-play equipment on a GPON optical link, and a management system on the OLT side cannot manage the GPON remote equipment serving as the plug-and-play equipment; once the OA or OAO function fails, the whole remote device function cannot be realized, and the maintainability of the current GPON remote device is very low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a GPON remote device and a management method thereof, which realize the management of the GPON remote device and improve the maintainability of the whole remote device.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a GPON remote device, comprising a local remote device and a remote device, wherein:
the local end remote equipment comprises a local end EONT device, and the local end EONT device is used for registering the local end remote equipment with OLT equipment; checking the robustness of the heterogeneous network, collecting the network form and link alarm information of the heterogeneous network, and reporting the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network to OLT equipment by using PLOAM information;
the remote equipment comprises a remote EONT device, and the remote EONT device is used for registering the remote equipment with OLT equipment; and collecting the optical power information of each ONU device of the heterogeneous network, and reporting the optical power information of each ONU device to the OLT device by using PLOAM information.
On the basis of the above technical solution, the registering, by the office end EONT apparatus, the office end remote device to the OLT device includes:
the local end EONT device checks whether the local end EONT device finishes registering the local end remote equipment to the OLT equipment, if not, firstly closes a channel from the local end remote equipment to the remote end remote equipment, then analyzes a downlink signal of the OLT equipment, and registers the local end remote equipment to the OLT equipment;
and after the local end EONT device finishes registering the local end remote equipment to the OLT equipment, starting a channel for the local end remote equipment to downlink to the remote equipment.
On the basis of the above technical solution, the registering, by the remote EONT apparatus, the remote device to the OLT device includes:
the remote EONT device checks whether the remote EONT device finishes registering the remote zooming-out equipment to the OLT equipment, if not, the channel from the remote zooming-out equipment to the passive optical splitter is closed, then the downlink signal of the OLT equipment is analyzed, and the remote zooming-out equipment is registered to the OLT equipment;
and after the remote EONT device finishes registering the remote equipment to the OLT equipment, starting a channel for the remote equipment to downlink to the passive optical splitter.
On the basis of the above technical solution, the reporting, by the local end EONT device, the robustness of the heterogeneous network, the network morphology of the heterogeneous network, and the link alarm information to the OLT apparatus using the PLOAM message includes:
the local end EONT device sends a dynamic bandwidth allocation request to OLT equipment;
and after receiving the bandwidth allocated by the OLT equipment, the local end EONT device reports the robustness of the heterogeneous network, the network form of the heterogeneous network and link alarm information to the OLT equipment by using PLOAM information.
On the basis of the above technical solution, the reporting, by the remote EONT device, the optical power information of each ONU device to the OLT device using a PLOAM message includes:
the remote EONT device sends a dynamic bandwidth allocation request to OLT equipment;
and after receiving the bandwidth allocated by the OLT equipment, the far-end EONT device reports the optical power information of each ONU equipment to the OLT equipment by using PLOAM information.
The invention also discloses a management method adopting the GPON remote equipment, which comprises the following steps:
registering the local remote equipment to OLT equipment through the local EONT device; checking the robustness of the heterogeneous network, collecting the network form and link alarm information of the heterogeneous network, and reporting the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network to OLT equipment by using PLOAM information through the local end EONT device;
registering the remote equipment with OLT equipment through the remote EONT device; and collecting the optical power information of each ONU device of the heterogeneous network, and reporting the optical power information of each ONU device to the OLT device by using PLOAM information through the remote EONT device.
On the basis of the above technical solution, registering the office remote device with the OLT device through the office EONT apparatus includes:
the local end EONT device checks whether the local end EONT device finishes registering the local end remote equipment to the OLT equipment, if not, firstly closes a channel from the local end remote equipment to the remote end remote equipment, then analyzes a downlink signal of the OLT equipment, and registers the local end remote equipment to the OLT equipment;
and after the local end EONT device finishes registering the local end remote equipment to the OLT equipment, starting a channel for the local end remote equipment to downlink to the remote equipment.
On the basis of the above technical solution, registering the remote terminal equipment to the OLT equipment through the remote EONT apparatus includes:
the remote EONT device checks whether the remote EONT device finishes registering the remote zooming-out equipment to the OLT equipment, if not, the channel from the remote zooming-out equipment to the passive optical splitter is closed, then the downlink signal of the OLT equipment is analyzed, and the remote zooming-out equipment is registered to the OLT equipment;
and after the remote EONT device finishes registering the remote equipment to the OLT equipment, starting a channel for the remote equipment to downlink to the passive optical splitter.
On the basis of the above technical solution, the reporting, by the local end EONT device, the robustness of the heterogeneous network, the network morphology of the heterogeneous network, and the link alarm information to the OLT apparatus using the PLOAM message includes:
the local end EONT device sends a dynamic bandwidth allocation request to OLT equipment;
and after receiving the bandwidth allocated by the OLT equipment, the local end EONT device reports the robustness of the heterogeneous network, the network form of the heterogeneous network and link alarm information to the OLT equipment by using PLOAM information.
On the basis of the above technical solution, the reporting, by the remote EONT device, the optical power information of each ONU device to the OLT device using a PLOAM message includes:
the remote EONT device sends a dynamic bandwidth allocation request to OLT equipment;
and after receiving the bandwidth allocated by the OLT equipment, the far-end EONT device reports the optical power information of each ONU equipment to the OLT equipment by using PLOAM information.
Compared with the prior art, the invention has the advantages that:
the remote equipment comprises an EONT device, the local remote equipment and the remote equipment are registered on the OLT equipment through the EONT device, and PLOAM messages are used for transmitting the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network and the optical power information of each ONU equipment, which are collected by the remote equipment, to the OLT equipment, so that the GPON remote equipment is managed.
Meanwhile, the information data quantity collected by the remote equipment transmitted to the OLT equipment by using the PLOAM message is small, and the normal service communication between the OLT equipment and the ONU equipment cannot be influenced.
Drawings
FIG. 1 is a schematic topology diagram of a GPON system according to an embodiment of the present invention;
fig. 2 is a schematic topology diagram of an aggregation remote device of a GPON system in an embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for managing a GPON remote device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 2, a communication flow of the GPON remote device in the GPON system is as follows:
in the downlink direction, the GPON downlink data stream is sent from the OLT equipment to the local remote equipment, and the heterogeneous network of the local remote equipment transparently transmits the downlink signal as a payload to the remote equipment; the remote equipment analyzes the signal containing the complete timing information and the payload (OLT downlink signal) from the heterogeneous network and broadcasts the signal to each ONU equipment through the passive optical splitter.
In the uplink direction, the remote equipment receives the uplink burst of the ONU as a payload and transparently transmits the payload to the local remote equipment through the heterogeneous network; the local remote equipment analyzes the payload signal uploaded by the heterogeneous network and transmits the payload signal to the OLT equipment.
The embodiment of the invention provides a GPON remote device, which comprises a local remote device and a remote device, wherein:
the local end remote device comprises a local end EONT (Embedded ONT) device, and the local end EONT device is used for registering the local end remote device with the OLT device; checking the robustness of the heterogeneous network, collecting the network form and link alarm information of the heterogeneous network, and reporting the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network to OLT equipment by using PLOAM information;
the remote equipment comprises a remote EONT device, and the remote EONT device is used for registering the remote equipment with the OLT equipment; and collecting the optical power information of each ONU device of the heterogeneous network, and reporting the optical power information of each ONU device to the OLT device by using PLOAM information.
The local end EONT device registering the local end remote equipment to the OLT equipment comprises the following steps:
the local end EONT device checks whether the local end EONT device finishes registering the local end remote equipment to the OLT equipment, if not, a channel from the local end remote equipment to the remote end remote equipment is closed, then a downlink signal of the OLT equipment is analyzed, and the local end remote equipment is registered to the OLT equipment;
after the local end EONT device finishes registering the local end remote equipment to the OLT equipment, a channel for the local end remote equipment to downlink to the remote equipment is started.
The remote equipment comprises an EONT device, the local remote equipment and the remote equipment are registered on OLT equipment through the EONT device, and physical layer operation, administration and maintenance (PLOAM) messages are used for transmitting the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network and the optical power information of each ONU equipment, which are collected by the remote equipment, to the OLT equipment, so that the management of the GPON remote equipment is realized. Meanwhile, the information data quantity collected by the remote equipment transmitted to the OLT equipment by using the PLOAM message is small, and the normal service communication between the OLT equipment and the ONU equipment cannot be influenced. The remote EONT device registering the remote pulling equipment to the OLT equipment comprises the following steps:
the remote EONT device checks whether the remote EONT device finishes registering the remote zooming equipment to the OLT equipment, if not, the channel from the remote zooming equipment to the passive optical splitter is closed, then the downlink signal of the OLT equipment is analyzed, and the remote zooming equipment is registered to the OLT equipment;
and after the remote EONT device finishes registering the remote zooming equipment to the OLT equipment, starting a channel descending the remote zooming equipment to the passive optical splitter.
The local end EONT device checks the robustness of the heterogeneous network, collects the network form and link alarm information of the heterogeneous network, and reports the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network to the OLT equipment by using PLOAM information, wherein the report comprises the following steps:
the local end EONT device checks the robustness of the heterogeneous network and collects the network form and link alarm information of the heterogeneous network;
the local end EONT device sends a dynamic bandwidth allocation request to OLT equipment;
after receiving the bandwidth allocated by the OLT equipment, the local EONT device reports the robustness of the heterogeneous network, the network form of the heterogeneous network and link alarm information to the OLT equipment by using PLOAM information.
The method includes that a remote EONT device collects optical power information of each ONU device of a heterogeneous network, and reporting the optical power information of each ONU device to an OLT device by using PLOAM messages includes:
the remote EONT device collects optical power information of each ONU device of the heterogeneous network;
the remote EONT device sends a dynamic bandwidth allocation request to OLT equipment;
and after receiving the bandwidth allocated by the OLT equipment, the remote EONT device reports the optical power information of each ONU equipment to the OLT equipment by using PLOAM information.
Referring to fig. 3, an embodiment of the present invention further discloses a method for managing a GPON remote device, including the following steps:
s1, registering the local remote equipment to the OLT equipment through the local EONT device;
s2, checking the robustness of the heterogeneous network, collecting the network form and link alarm information of the heterogeneous network, and reporting the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network to OLT equipment by using PLOAM information through a local end EONT device;
s3, registering the remote equipment to the OLT equipment through the remote EONT device;
and S4, collecting the optical power information of each ONU device in the heterogeneous network, and reporting the optical power information of each ONU device to the OLT device by using PLOAM information through the remote EONT device.
The remote equipment comprises an EONT device, the local remote equipment and the remote equipment are registered on the OLT equipment through the EONT device, and PLOAM messages are used for transmitting the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network and the optical power information of each ONU equipment, which are collected by the remote equipment, to the OLT equipment, so that the GPON remote equipment is managed. Meanwhile, the information data quantity collected by the remote equipment transmitted to the OLT equipment by using the PLOAM message is small, and the normal service communication between the OLT equipment and the ONU equipment cannot be influenced.
The remote EONT device registering the remote pulling equipment to the OLT equipment comprises the following steps:
registering the office remote equipment to the OLT equipment through the office EONT device comprises the following steps:
the local end EONT device checks whether the local end EONT device finishes registering the local end remote equipment to the OLT equipment, if not, a channel from the local end remote equipment to the remote end remote equipment is closed, then a downlink signal of the OLT equipment is analyzed, and the local end remote equipment is registered to the OLT equipment;
after the local end EONT device finishes registering the local end remote equipment to the OLT equipment, a channel for the local end remote equipment to downlink to the remote equipment is started.
Registering a remote pulling device with an OLT device via a remote EONT device includes:
the remote EONT device checks whether the remote EONT device finishes registering the remote zooming equipment to the OLT equipment, if not, the channel from the remote zooming equipment to the passive optical splitter is closed, then the downlink signal of the OLT equipment is analyzed, and the remote zooming equipment is registered to the OLT equipment;
and after the remote EONT device finishes registering the remote zooming equipment to the OLT equipment, starting a channel descending the remote zooming equipment to the passive optical splitter.
The local end EONT device checks the robustness of the heterogeneous network, collects the network form and link alarm information of the heterogeneous network, and reports the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network to the OLT equipment by using PLOAM information, wherein the report comprises the following steps:
the local end EONT device checks the robustness of the heterogeneous network and collects the network form and link alarm information of the heterogeneous network;
the local end EONT device sends a dynamic bandwidth allocation request to OLT equipment;
after receiving the bandwidth allocated by the OLT equipment, the local EONT device reports the robustness of the heterogeneous network, the network form of the heterogeneous network and link alarm information to the OLT equipment by using PLOAM information.
The method includes that a remote EONT device collects optical power information of each ONU device of a heterogeneous network, and reporting the optical power information of each ONU device to an OLT device by using PLOAM messages includes:
the remote EONT device collects optical power information of each ONU device of the heterogeneous network;
the remote EONT device sends a dynamic bandwidth allocation request to OLT equipment;
and after receiving the bandwidth allocated by the OLT equipment, the remote EONT device reports the optical power information of each ONU equipment to the OLT equipment by using PLOAM information.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (7)
1. A GPON zoom-out device, characterized in that: the GPON remote equipment comprises local remote equipment and remote equipment, wherein:
the local end remote equipment comprises a local end EONT device, and the local end EONT device is used for registering the local end remote equipment with OLT equipment; checking the robustness of the heterogeneous network, collecting the network form and link alarm information of the heterogeneous network, and reporting the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network to OLT equipment by using PLOAM information;
the remote equipment comprises a remote EONT device, and the remote EONT device is used for registering the remote equipment with OLT equipment; collecting optical power information of each ONU device of the heterogeneous network, and reporting the optical power information of each ONU device to OLT equipment by using PLOAM information;
the local end EONT device reports the robustness of the heterogeneous network, the network form of the heterogeneous network and link alarm information to OLT equipment by using PLOAM messages, and comprises the following steps:
the local end EONT device sends a dynamic bandwidth allocation request to OLT equipment;
after receiving the bandwidth allocated by the OLT equipment, the local EONT device reports the robustness of the heterogeneous network, the network form of the heterogeneous network and link alarm information to the OLT equipment by using PLOAM information;
the reporting, by the far-end EONT device, the optical power information of each ONU device to the OLT device using a PLOAM message includes:
the remote EONT device sends a dynamic bandwidth allocation request to OLT equipment;
and after receiving the bandwidth allocated by the OLT equipment, the far-end EONT device reports the optical power information of each ONU equipment to the OLT equipment by using PLOAM information.
2. The GPON zoom-out device of claim 1, wherein:
the local end EONT device registering the local end remote equipment to the OLT equipment comprises the following steps:
the local end EONT device checks whether the local end EONT device finishes registering the local end remote equipment to the OLT equipment, if not, firstly closes a channel from the local end remote equipment to the remote end remote equipment, then analyzes a downlink signal of the OLT equipment, and registers the local end remote equipment to the OLT equipment;
and after the local end EONT device finishes registering the local end remote equipment to the OLT equipment, starting a channel for the local end remote equipment to downlink to the remote equipment.
3. The GPON zoom-out device of claim 1, wherein:
the remote EONT device registering the remote pulling equipment with the OLT equipment comprises the following steps:
the remote EONT device checks whether the remote EONT device finishes registering the remote zooming-out equipment to the OLT equipment, if not, the channel from the remote zooming-out equipment to the passive optical splitter is closed, then the downlink signal of the OLT equipment is analyzed, and the remote zooming-out equipment is registered to the OLT equipment;
and after the remote EONT device finishes registering the remote equipment to the OLT equipment, starting a channel for the remote equipment to downlink to the passive optical splitter.
4. A management method using the GPON remote device according to any one of claims 1 to 3, wherein:
registering the local remote equipment to OLT equipment through the local EONT device; checking the robustness of the heterogeneous network, collecting the network form and link alarm information of the heterogeneous network, and reporting the robustness of the heterogeneous network, the network form and the link alarm information of the heterogeneous network to OLT equipment by using PLOAM information through the local end EONT device;
registering the remote equipment with OLT equipment through the remote EONT device; collecting optical power information of each ONU device of the heterogeneous network, and reporting the optical power information of each ONU device to the OLT device by using PLOAM information through the remote EONT device;
the local end EONT device reports the robustness of the heterogeneous network, the network form of the heterogeneous network and link alarm information to OLT equipment by using PLOAM messages, and comprises the following steps:
the local end EONT device sends a dynamic bandwidth allocation request to OLT equipment;
and after receiving the bandwidth allocated by the OLT equipment, the local end EONT device reports the robustness of the heterogeneous network, the network form of the heterogeneous network and link alarm information to the OLT equipment by using PLOAM information.
5. The method for managing a GPON remote device according to claim 4, wherein: registering the office remote device with the OLT device via the office EONT apparatus includes:
the local end EONT device checks whether the local end EONT device finishes registering the local end remote equipment to the OLT equipment, if not, firstly closes a channel from the local end remote equipment to the remote end remote equipment, then analyzes a downlink signal of the OLT equipment, and registers the local end remote equipment to the OLT equipment;
and after the local end EONT device finishes registering the local end remote equipment to the OLT equipment, starting a channel for the local end remote equipment to downlink to the remote equipment.
6. The method for managing a GPON remote device according to claim 4, wherein: registering the remote pulling equipment with the OLT equipment through the remote EONT device comprises:
the remote EONT device checks whether the remote EONT device finishes registering the remote zooming-out equipment to the OLT equipment, if not, the channel from the remote zooming-out equipment to the passive optical splitter is closed, then the downlink signal of the OLT equipment is analyzed, and the remote zooming-out equipment is registered to the OLT equipment;
and after the remote EONT device finishes registering the remote equipment to the OLT equipment, starting a channel for the remote equipment to downlink to the passive optical splitter.
7. The method for managing a GPON remote device according to claim 4, wherein: the reporting, by the far-end EONT device, the optical power information of each ONU device to the OLT device using a PLOAM message includes:
the remote EONT device sends a dynamic bandwidth allocation request to OLT equipment;
and after receiving the bandwidth allocated by the OLT equipment, the far-end EONT device reports the optical power information of each ONU equipment to the OLT equipment by using PLOAM information.
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| CN110121123A (en) * | 2019-05-10 | 2019-08-13 | 江西山水光电科技股份有限公司 | A kind of PON polymerization remote device management method |
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| CN101459472A (en) * | 2007-08-10 | 2009-06-17 | 华为技术有限公司 | Method, system and apparatus realizing remote data transmission in passive optical network |
| CN101651499B (en) * | 2008-08-12 | 2014-04-16 | 华为技术有限公司 | Method and system for controlling optical amplifier in relay unit of passive optical network |
| CN101964924B (en) * | 2009-07-24 | 2013-11-06 | 华为技术有限公司 | Method, device and system for transmitting information in passive optical network |
| KR20140083160A (en) * | 2012-12-24 | 2014-07-04 | 한국전자통신연구원 | An optical line terminal and method for registrating optical network terminals thereof |
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| CN101039214A (en) * | 2006-03-17 | 2007-09-19 | 华为技术有限公司 | Method and system for distributing dynamically bandwidth resource |
| US9319140B2 (en) * | 2011-12-02 | 2016-04-19 | Futurewei Technologies, Inc. | Apparatus and method for registering a coaxial network unit on an optical network |
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