KR20090100083A - The remote terminal and system for tdm based passive optical networks - Google Patents

Abstract

PURPOSE: A TDM-PON based remote relay apparatus and a system thereof are provided to increase the signal transmission distance and branching rate efficiently without transmission loss as using the existing infra as it is. CONSTITUTION: A TDM-PON based remote relay apparatus includes the first TDM-PON optical transceiver(51), signal reproducing units(52,53), and the second TDM-PON optical transceiver(54). The first TDM-PON optical transceiver transceives downlink/uplink signals with a TDM-PON OLT of a station side. The signal reproducing units respectively reproduce the downlink signal inputted from the first TDM-PON optical transceiver and an uplink signal inputted from the second TDM-PON optical transceiver. The second TDM-PON optical transceiver transceives the downlink/uplink signals with the TDM-PON ONT of a subscriber side.

Description

The remote terminal and system for TDM based passive optical networks

The present invention relates to a remote relay device and a system thereof in an optical network, and more particularly, to relay a signal between an optical fiber terminal device (OLT) at the station side and an optical fiber subscriber device (ONT) at the subscriber side (increasing the signal transmission distance). The present invention relates to a TDM-PON based remote relay device and a system thereof.

With the rapid increase in Internet traffic and the convergence of broadcasting and telecommunication services, the speed of communication networks is increasing rapidly. Among these technologies, PON (Passive Optical Network) technology is not only able to provide high bandwidth to subscribers, but also because the OSP (OutSide Plant) consists only of passive elements, it is possible to reduce the operation cost of the network. It is spreading.

The PON technology is classified into two types according to the difference of multiplexing and multiple access methods. The first is time division multiplexing (TDM) -PON based on time division multiplexing, and the second is wavelength division multiplexing (WDM) based on wavelength division multiplexing. -PON. Meanwhile, optical network technologies such as B-PON, E-PON and G-PON based on TDM-PON and hybrid optical network (Hybrid-PON) technology combining WDM-PON based on TDM-PON have recently been introduced. It is actively discussed.

1 is a configuration diagram of an embodiment of a TDM-PON according to the prior art.

As shown in Fig. 1, the TDM-PON according to the prior art has a fiber optic terminal device (hereinafter referred to as " TDM-PON OLT ") 10 at the station side and a subscriber network device (hereinafter " ") at each subscriber side. TDM-PON ONT ") and a splitter 30 for optical signal distribution (optical signal power branching, optical signal power coupling) between the TDM-PON OLT and the TDM-PON ONT. .

The TDM-PON OLT 10 is composed of a TDM-PON MAC & PHY module 11 and a TDM-PON optical transceiver (TDM-PON TR _BMR ) 12, and the TDM-PON ONT 20 is a TDM-PON MAC & PHY. Module 21 and a TDM-PON optical transceiver (TDM-PON TR _BMT ) 22.

TDM-PON is a structure in which the TDM-PON ONT 20 of each subscriber side shares the optical fiber with the TDM-PON OLT 10 of the national company side by using a time division scheme, and is a B-PON standardized in ITU-T. , G-PON, and E-PON standardized by the IEEE are currently in use.

The signal transmission method in the TDM-PON will be briefly introduced.

In terms of the downlink signal, the TDM-PON OLT 10 broadcasts the traffic transmitted to each TDM-PON ONT 20, and a 1xN splitter is installed to simply branch optical power at a remote location. The downlink signal received from the TDM-PON OLT 10 is distributed to N subscriber lines, and the downlink signal received from the TDM-PON ONT 20 is received by the TDM-PON OLT 10 to selectively transmit only the frame allocated to the subscriber to the subscriber. do.

In terms of an uplink signal, each TDM-PON ONT 20 performs its own dedicated time slot (TDM-PON OLT) through ranging and dynamic bandwidth allocation (DBA) processes. In the state previously allocated from (10), the TDM-PON optical transceiver (TDM-PON TR _BMT ) 22 is completely transmitted only when the time slot allocated to itself is transmitted, and when it is not its slot. [Shut down]. In order to support this, the TDM-PON optical transceiver 22 of the TDM-PON ONT 20 is implemented as a transceiver with burst-mode transmitter (TR _BMT ) having a burst mode transmission function.

The uplink signal from each TDM-PON ONT 20 is combined at a remote splitter and transmitted to the TDM-PON OLT 10. In order to support the uplink signal having the burst mode characteristics, the TDM-PON optical transceiver 12 of the TDM-PON OLT 10 includes a transceiver with burst-mode receiver (TR _BMR ). Is implemented.

Meanwhile, a fixed wavelength light source of 1480 nm to 1500 nm band is typically used for the TDM-PON OLT 10, and a fixed wavelength light source of 1260 nm to 1360 nm band is used for the TDM-PON ONT 20.

In the standardization organization for the next-generation TDM-PON, the possibility of changing the uplink wavelength and the downlink wavelength and the method for increasing the bandwidth by transmitting the downlink signal to the optical transceiver of various wavelengths are discussed.

However, in the TDM-PON according to the prior art, the splitter is installed at a remote location to perform optical power branching, coupling, and the like, which has a problem of significantly increasing transmission loss due to an increase in branching rate. Due to these problems, currently commercially available TDM-PON has a limited bandwidth and branching rate of 2.5 Gb / s shared bandwidth of about 64 branches.In this environment, TDM-PON OLT (10) and TDM-PON ONT (20 The distance between the signals is very limited, ranging from 10km to 20km.

For example, in the conventional technology based on the TDM-PON according to the prior art, it is very difficult to simultaneously increase the branching rate and the transmission distance for signal transmission due to limited loss margin.

Therefore, in the optical network, there is an urgent need for a technique for increasing the branching rate and transmission distance between the OLT and the ONT by providing a separate device between the OLT on the station side and the OLT on the subscriber side. It is required.

In addition, it implements management functions such as remote monitoring of network status for devices for increasing transmission distances installed in remote areas as described above, and these devices can be used in any optical network such as TDM-PON based optical network and WDM / TDM composite optical network. There is an urgent need for techniques that can be used.

Accordingly, the present invention has been proposed to solve the above problems and meet the above requirements, and relays a signal between an optical fiber terminal device (OLT) on the national side and an optical fiber subscriber device (ONT) on the subscriber side [ It is an object of the present invention to provide a TDM-PON-based remote relay device and a system for increasing a signal transmission distance.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned above can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

In order to achieve the above object, a first embodiment of the present invention provides a remote relay apparatus comprising: a first TDM-PON optical transmitter / receiver for transmitting / receiving a downlink signal and an uplink signal with a TDM-PON OLT at a national company; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; And a second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal to and from a TDM-PON ONT of a subscriber.

On the other hand, the second embodiment of the present invention, G-PON / E-PON combined remote relay device, the first TDM-PON optical transceiver for transmitting and receiving the downlink signal and uplink signal to the TDM-PON OLT on the side of the office; A downlink signal reproducing unit for reproducing a downlink signal received from the first TDM-PON optical transceiver; An uplink signal reproducing unit for reproducing an uplink signal received from a second TDM-PON optical transmitter; And a second TDM-PON optical transmitter / receiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber side, wherein the downlink signal reproducing unit has a bit rate selecting means and a switching means. Provided is a TDM-PON-based remote relay device, characterized in that the transmission rate of the signal is selected from one of the G-PON transmission rate or the E-PON transmission rate.

On the other hand, the third embodiment of the present invention, G-PON / E-PON combined remote relay device, the first TDM-PON optical transmitter and receiver for transmitting and receiving downlink signal and uplink signal to the TDM-PON OLT on the side of the office; A downlink signal reproducing unit for reproducing a downlink signal received from the first TDM-PON optical transceiver; An uplink signal reproducing unit for reproducing an uplink signal received from a second TDM-PON optical transmitter; A second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; And a rate detecting unit for detecting a transmission rate of a downlink signal received from the first TDM-PON optical transmitter, comprising a bit rate selecting means on the downlink signal reproducing unit, according to the rate detected by the rate detecting unit; It provides a TDM-PON-based remote relay device, characterized in that for selecting the transmission rate of the downlink signal to any one of the G-PON transmission rate or the E-PON transmission rate.

On the other hand, the fourth embodiment of the present invention, a remote relay device with a remote management function, the first TDM-PON optical transmitter and receiver for transmitting and receiving the downlink signal and the uplink signal to the TDM-PON OLT of the office side; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; A second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; And a first optical supervisory channel (OSC) optical transmission / reception module for forming a communication channel having a specific wavelength with the TDM-PON OLT to transmit and receive a remote relay control signal and a remote relay report signal with the TDM-PON OLT side. It provides a TDM-PON-based remote relay device including.

On the other hand, the fifth embodiment of the present invention, a remote relay device having a remote management function, comprising: a first TDM-PON optical transmitter and receiver for transmitting and receiving a downlink signal and an uplink signal with a TDM-PON OLT on the side of a national company; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; A second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; And a TDM-PON ONT for remote management for transmitting and receiving the TDM-PON OLT and a remote relay control signal and a remote relay report signal using a time slot allocated from the TDM-PON OLT side. Provide a remote relay device.

On the other hand, the sixth embodiment of the present invention, a remote relay device having a remote management function, comprising: a first TDM-PON optical transmitter and receiver for transmitting and receiving a downlink signal and an uplink signal with a TDM-PON OLT on the side of a national company; A downlink signal reproducing unit for reproducing a downlink signal received from the first TDM-PON optical transceiver; An uplink signal reproducing unit for reproducing an uplink signal received from a second TDM-PON optical transmitter; A second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; Switching means for switching an input signal to the first TDM-PON optical transceiver; And a TDM-PON MAC & PHY module for transmitting a remote relay report signal generated inside a remote relay device to the first TDM-PON optical transceiver through the switching means. .

On the other hand, according to a seventh embodiment of the present invention, there is provided a remote relay apparatus having a remote management function, comprising: a first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with a TDM-PON OLT at a national company; A downlink signal reproducing unit for reproducing a downlink signal received from the first TDM-PON optical transceiver; A second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; Logic operation means for outputting any one of an input signal to the first TDM-PON optical transceiver; And a TDM-PON MAC & PHY module for transmitting a remote relay report signal generated inside a remote relay device to the first TDM-PON optical transceiver through the logical operation means. do.

On the other hand, the eighth embodiment of the present invention, in the remote relay system, the first TDM-PON optical transmitter and receiver for transmitting and receiving the downlink signal and uplink signal to each of the station side TDM-PON OLT; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; And at least one remote relay device including the second TDM-PON optical transmitter / receiver for transmitting and receiving uplink signals and downlink signals to and from each subscriber side TDM-PON ONT. It provides a relay system.

On the other hand, the ninth embodiment of the present invention, in the remote relay system with a remote management function, each TMS-PON OLT for transmitting and receiving the downlink signal and the uplink signal to each station side TDM-PON optical transmitter and receiver; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; And at least one remote relay device including the second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with each subscriber side TDM-PON ONT, wherein at least one of the remote relay devices includes: An OSC optical transmission / reception module for forming a communication channel having a specific wavelength with a specific TDM-PON OLT among the TDM-PON OLTs, and transmitting and receiving a remote relay control signal and a remote relay report signal for each remote relay device. It provides a TDM-PON-based remote relay system comprising a.

On the other hand, the tenth embodiment of the present invention, in the remote relay system with a remote management function, each TMS-PON OLT for transmitting and receiving the downlink signal and the uplink signal to each side of the TMS-PON optical transmitter; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; And at least one remote relay device including the second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with each subscriber side TDM-PON ONT, wherein at least one of the remote relay devices includes: TDM-PON ONT for remote management for transmitting / receiving a remote relay control signal and a remote relay report signal for each remote relay device using a time slot allocated from a specific TDM-PON OLT side among the TDM-PON OLTs It provides a TDM-PON-based remote relay system comprising a.

On the other hand, according to the eleventh embodiment of the present invention, in the remote relay system with a remote management function, relaying the downlink signal and the uplink signal between each TMS-PON OLT and each subscriber-side TDM-PON ONT At least one remote relay device for the at least one of the remote relay device, switching means for switching the input signal to a specific TDM-PON OLT side of the TDM-PON OLT; And a TDM-PON MAC & PHY module for transmitting a remote relay report signal for each remote relay device to the specific TDM-PON OLT side through the switching means. Provide a system.

On the other hand, according to a twelfth embodiment of the present invention, in the remote relay system with a remote management function, relaying the downlink signal and the uplink signal between each TMS-PON OLT and each subscriber-side TDM-PON ONT At least one remote relay device for one, wherein any one of the remote relay unit, logic operation means for outputting any one signal of the input signal to a specific TDM-PON OLT side of the TDM-PON OLT; And a TDM-PON MAC & PHY module for transmitting a remote relay report signal for each remote relay device to the specific TDM-PON OLT side through the logical operation means. It provides a relay system.

On the other hand, according to a thirteenth embodiment of the present invention, in a remote relay apparatus in a WDM / TDM composite optical network, the WDM optical signal received from the head office side H-OLT (Hybrid OLT) is branched for each wavelength channel, and each WDM WDM wavelength branching means for combining the uplink WDM optical signal received from the / TDM optical relay module; And converts the downlink WDM optical signal branched by the WDM wavelength splitting unit into a downlink TDM optical signal, and transmits the downlink WDM optical signal to a subscriber side TDM-PON ONT corresponding to the corresponding wavelength channel, and receives an uplink TDM received from the subscriber side TDM-PON ONT. Provided is a TDM-PON-based remote relay device comprising a plurality of the WDM / TDM optical relay module for converting an optical signal into an uplink WDM optical signal for transmission to the WDM wavelength splitting means.

On the other hand, according to a fourteenth embodiment of the present invention, in a remote relay apparatus having a remote management function in a WDM / TDM composite optical network, the downlink WDM optical signal received from the H-OLT of the branch office is branched for each wavelength channel. WDM wavelength branching means for combining the uplink WDM optical signal received from the WDM / TDM optical relay module; And converting the downlink WDM optical signal branched by the WDM wavelength branching combining means into a downlink TDM optical signal and transmitting to the first TDM-PON ONT at the subscriber side corresponding to the wavelength channel, from the first TDM-PON ONT at the subscriber side. And a plurality of WDM / TDM optical relay modules for converting a received uplink TDM optical signal into an uplink WDM optical signal for transmission to the WDM wavelength branch combining means, wherein any one of the WDM / TDM optical relay modules includes: And a remote management TDM-PON ONT for transmitting and receiving a remote relay control signal and a remote relay report signal for each WDM / TDM optical relay module using a time slot allocated from an H-OLT side. It provides a TDM-PON based remote relay device.

On the other hand, according to the fifteenth embodiment of the present invention, in a remote relay apparatus equipped with a remote management function in a WDM / TDM composite optical network, the downlink WDM optical signal received from the H-OLT of the branch office is branched for each wavelength channel. WDM wavelength branching means for combining the uplink WDM optical signal received from the WDM / TDM optical relay module; And converts the downlink WDM optical signal branched by the WDM wavelength splitting unit into a downlink TDM optical signal, and transmits the downlink WDM optical signal to a subscriber side TDM-PON ONT corresponding to the corresponding wavelength channel, and receives an uplink TDM received from the subscriber side TDM-PON ONT. And a plurality of the WDM / TDM optical relay modules for converting an optical signal into an uplink WDM optical signal and transmitting the optical signal to the WDM wavelength branch combining means, wherein any one of the WDM / TDM optical relay modules transmits an input signal to the H signal. Switching means for switching to the OLT side; And a TDM-PON MAC & PHY module for transmitting a remote relay report signal for each WDM / TDM optical relay module to the H-OLT through the switching means. Provide a device.

On the other hand, according to the sixteenth embodiment of the present invention, in a remote relay apparatus equipped with a remote management function in a WDM / TDM composite optical network, the downlink WDM optical signal received from the H-OLT of the branch office is branched for each wavelength channel. WDM wavelength branching means for combining the uplink WDM optical signal received from the WDM / TDM optical relay module; And converting the downlink WDM optical signal branched by the WDM wavelength splitting unit into a downlink TDM optical signal and transmitting the downlink WDM optical signal to a subscriber side TDM-PON ONT corresponding to the corresponding wavelength channel, and receiving an uplink received from the subscriber side TDM-PON ONT. A plurality of WDM / TDM optical relay module for converting a TDM optical signal into an uplink WDM optical signal for transmission to the WDM wavelength splitting means, wherein any one of the WDM / TDM optical relay module, Logic operation means for outputting any one signal to the H-OLT side; And a TDM-PON MAC & PHY module for transmitting a remote relay report signal for each WDM / TDM optical relay module to the H-OLT side through the logical operation means. Provide a relay device.

The present invention as described above, while using the existing infrastructure of the optical network system, such as B-PON, E-PON, G-PON, WDM / TDM-PON, based on the TDM-PON already established without transmission loss limitation There is an effect that the distance can be increased and the branch rate can be efficiently increased.

In addition, the present invention has the effect of enabling a remote management such as remote monitoring, control, etc. of a network state at a remote location to a remote relay device with a simple configuration.

The above objects, features, and advantages will become more apparent from the following detailed description with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains may have the technical idea of the present invention. It will be easy to implement. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating an embodiment of a TDM-PON to which a remote relay apparatus according to the present invention is applied.

A remote relay device 50 according to the present invention to be described in detail below will be provided between the TDM-PON OLT 10 and the splitter 30, and as shown in FIG. 2, the TDM-PON OLT and the splitter in the optical network. It may have a structure in which one or more remote relay devices are connected to each other. Meanwhile, each remote relay device may have an optical network structure connected to each splitter.

The remote relay device proposed in the present invention performs a function of relaying a signal between the TDM-PON OLT on the office side and the splitter, preferably the TDM-PON ONT on the subscriber side, and also has a remote management function on the optical network. .

Hereinafter, the present invention will be described using TDM-PON as an optical network as an example, TDM-PON OLT as an OLT on a national company side, and TDM-PON ONT as an ONT on a subscriber side. Hereinafter, a remote relay device for a TDM-PON will be described as a remote relay device.

3 is a basic configuration diagram of a remote relay apparatus according to the present invention.

As shown in FIG. 3, the remote repeater according to the present invention includes a first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51, a downlink signal regeneration unit SR _DN 52, and an uplink signal regeneration unit. (SR _UP ) 53 and a second TDM-PON optical transceiver (TDM-PON TR _BMR ) 54.

The first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51 converts the downlink signal of continuous characteristics received from the TDM-PON OLT side by photo / electric conversion. In addition, the first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51 converts the uplink signal of the burst mode characteristic received from the uplink signal reproducing unit SR _UP 53 to all / optically converts the TDM-PON OLT. To the side. These claim 1 TDM-PON optical transceiver (TDM-PON TR _BMT) is an optical transceiver includes a burst mode transfer function; is implemented as a _{(TR BMT transceiver with burst-mode} transmitter), an optical transceiver provided in the TDM-PON ONT You can use it as it is.

The downlink signal regeneration unit (SR _DN ) 52 compensates for the distortion and loss of the electrical signal (downstream signal) converted by the first TDM-PON TR _BMT 51. do.

The signal regenerator for upstream (SR _UP ) 53 compensates for the distortion and loss of the electrical signal (upstream signal) converted by the second TDM-PON optical transceiver (TDM-PON TR _BMR ) 54. do.

The downlink signal regeneration unit (SR _DN ) 52 and the uplink signal regeneration unit (SR _UP ) 53 may be implemented as a single module and include a first TDM-PON optical transmitter (TDM-PON TR _BMT ) 51. And a second TDM-PON optical transceiver (TDM-PON TR _BMR ) 54 connected directly to an input / output terminal.

Meanwhile, each of the downlink signal reproduction unit SR _DN 52 and the uplink signal reproduction unit SR _UP 53 has a 3R reproduction method using a buffer and the like, and a 3R using a clock and data recovery (CDR). Signal regeneration techniques such as regeneration techniques, multi-rate CDR regeneration techniques, and the like are used.

The second TDM-PON optical transceiver (TDM-PON TR _BMR ) 54 converts the downlink signal of the continuous characteristic received from the downlink signal reproducing unit SR _DN 52 to the TDM-PON ONT side. send. In addition, the second TDM-PON optical transceiver (TDM-PON TR _BMR ) 54 converts an uplink signal having a burst mode characteristic received from the TDM-PON ONT side by optically / pre-converting the uplink signal reproducing unit SR _UP 53. ). These claim 2 TDM-PON optical transceiver (TDM-PON TR _BMR) is an optical transceiver having a receive burst mode function; is implemented by _{(TR BMR transceiver with burst-mode} receiver), an optical transceiver provided in the TDM-PON OLT You can use it as it is.

Figure 4a is a configuration diagram of a remote relay device with a downlink speed selection function according to the present invention, Figure 4b is a configuration of an embodiment of a remote relay device with a downlink speed detection function according to the present invention It is also.

The present invention provides a remote relay device that can be used for both G-PON and E-PON, and as shown in FIG. 4A, the remote relay device has a function of selecting a transmission speed for a downlink signal.

For example, considering that the downlink speed in the G-PON is 2.488 Gbps, the uplink speed is 1.244 Gbps, and the up-down speed in the E-PON is 1.25 Gbps, the present invention uses the "G-PON / E-PON combined remote relay device". Downlink signal reproduction section 61 applies a multi-rate CDR [3R] reproduction scheme to select a downlink speed from 2.488 Gbps or 1.25 Gbps. Meanwhile, since the uplink speeds of the G-PON and the E-PON are the same, the 2R reproducing technique is applied to the uplink signal reproducing unit 62 of the G-PON / E-PON remote relay apparatus.

To this end, as shown in FIG. 4A, a bit rate selector (BRSEL) 65 and a switch 66 are provided on the downlink signal reproducing unit 61 side of the G-PON / E-PON combined remote relay device. And externally adjust the switch 66 to select the rate of transmission of the downlink signal through the port of the bit rate selector 65. The G-PON / E-PON combined remote relay device may be operated by inputting a switch adjustment signal to the switch 66 through interworking with an external device, or operated according to the operation of the switch 66 provided in the remote relay device. can do.

On the other hand, as shown in Figure 4a, unlike the 3R reproduction technique applied to the downlink signal reproduction section 61 on the downlink signal path, the 2R reproduction technique is applied to the uplink signal reproduction section 62 on the uplink signal path. This is because, when the 3R reproduction scheme is applied to an uplink signal having a burst mode characteristic, it takes a considerable time to complete clock synchronization, and a part of the preamble of the uplink signal is lost. For example, in a structure in which a plurality of remote relay devices are connected in series, a loss of preamble is accumulated to prevent normal signal reception from the TDM-PON OLT. Therefore, the 2R reproduction technique is preferably applied to the uplink signal reproducer 62 on the uplink signal path.

As shown in FIG. 4B, the G-PON / E-PON dual remote relay device may be configured to automatically perform a down speed selection function.

To this end, a bit rate selector 65 and a rate detecting unit 75 are provided on the downlink signal reproducing unit 71 side in the G-PON / E-PON dual remote repeater shown in FIG. 4B.

That is, the rate detecting unit 75 detects the rate of the downlink signal received from the first TDM-PON TR _BMT 51 and controls the bit rate selector 65 in accordance with the rate. The signal reproducing unit 71 allows the downlink signal transmission rate to be automatically selected.

Hereinafter, a remote relay apparatus equipped with a remote management (remote control, remote monitoring) function will be described with reference to FIGS. 5A and 7B.

Figure 5a is an embodiment configuration of a remote relay device provided with a single OSC optical transmitter for remote management according to the present invention.

As shown in FIG. 5A, a remote relay apparatus including a single OSC optical transmitter for remote management according to the present invention includes a first WDM filter 81 and a first OSC optical transceiver OSC TR; It further includes a supervisory channel tranceiver 82 and a control unit (MCU) 83. Meanwhile, as mentioned above, the downlink signal reproduction unit SR _DN 52 and the uplink signal reproduction unit SR _UP 53 may be integrated into one module.

, 이하 "RT 제어신호"라 함)를 제1 OSC 광송수신기(82)로 입력한다.That is, the first WDM filter 81 filters a signal received from the TDM-PON OLT side (downlink signal and remote repeater control signal) to control the remote repeater control signal (wavelength:

(Hereinafter, referred to as "RT control signal") is input to the first OSC optical transmitter 82.

)를 TDM-PON OLT 측으로 전송한다.The first OSC optical transceiver 82 receives the RT control signal in the form of light from the first WDM filter 81 and transmits the optical / electric conversion to the control unit 83, and receives the remote relay device from the control unit 83. RT report signal in the form of light through the first WDM filter 81 by converting the report signal (hereinafter referred to as "RT report signal") to all / optical

) Is sent to the TDM-PON OLT side.

The control unit 83 controls the operation of the remote relay apparatus corresponding to the RT control signal received through the first OSC optical transmitter and receiver 82, and various information (network status, monitoring information, etc.) collected from the remote relay apparatus is stored. The first OSC optical transceiver 82 is controlled to be transmitted to the TDM-PON OLT side as an RT report signal.

In the above-described remote relay device of FIG. 5A, an RT control signal and an RT report signal having different wavelengths and up and down signals transmitted and received between TDM-PON ONTs are used, and to transmit and receive these RT control signals and RT report signals between TDM-PON OLTs. It is equipped with an OSC optical transmitter. The OSC optical transceiver allows a communication channel having a separate wavelength to be formed between the control unit 83 of the remote relay apparatus and the TDM-PON OLT.

5B is a diagram illustrating an embodiment of a remote relay apparatus equipped with multiple OSC optical transceivers for remote management according to the present invention.

As shown in FIG. 5B, the remote relay apparatus including the multiple OSC optical transmitters for remote management includes a second WDM filter 84 and a second OSC optical receiver in the remote relay apparatus illustrated in FIG. 5A. (OSC TR) optical supervisory channel tranceiver (85).

For example, when a plurality of remote relay devices are configured between the TDM-PON OLT and the TDM-PON ONT, the RT control signal directed to another remote relay device at its rear end (subscriber side) and the RT report signal coming from another remote relay device Needs to be relayed between the TDM-PON OLT and the corresponding remote relay device.

Accordingly, in the remote relay device of FIG. 5B, after the control unit 83 receives the RT report signal received from the other remote relay device through the second WDM filter 84 and the second OSC optical transceiver 85, The transmission signal is transmitted to the TDM-PON OLT side through the first OSC optical transceiver 82 together with the report signal of the relay device. In addition, the RT control signal received from the TDM-PON OLT side is received by the control unit 83 through the first WDM filter 81 and the first OSC optical transceiver 82, and then does not correspond to its own remote relay device. Retransmits to the remote relay device at the rear end through the second OSC optical transceiver.

Figure 6a is an embodiment configuration for a remote relay device equipped with an ONT for the remote management according to the present invention, Figure 6b is a remote relay device provided with an ONT for the remote management in accordance with the present invention at the rear end One embodiment is a configuration diagram.

For remote management of the remote relay device, instead of having an OSC optical transceiver in the remote relay device described above with reference to FIGS. 5A and 5B, the TDM-PON ONT is remotely relayed as shown in FIGS. 6A and 6B. It may be provided in the apparatus. Here, in order to distinguish between the TDM-PON ONT provided in the remote relay device and the TDM-PON ONT on the subscriber side, hereinafter, TDM-PON ONT of the remote relay device is referred to as "TDM-PON ONT _RT " [aka remote management TDM- PON ONT].

As shown in Fig. 6A, a first coupler 91 and a TDM-PON ONT _RT 92 are provided at the front end of the remote relay apparatus, for example, at the optical connection portion on the side of the TAD-PON OLT. As another embodiment, as shown in FIG. 6B, a second coupler 95 and a TDM-PON ONT _RT 96 are provided at the rear end of the remote relay device, such as an optical connection portion at the subscriber [TDM-PON ONT] side. ). Here, each of the first coupler and the second coupler may be replaced by another component that performs the function of the optical splitter.

The TDM-PON ONT _RT of the remote relay device shown in FIGS. 6A and 6B includes a TDM-PON MAC & PHY module and a TDM-PON optical transceiver (TDM-PON TR _BMT ), and the subscriber side for such a TDM-PON ONT _RT . The TDM-PON ONT provided in the terminal may be used as it is for the remote relay device.

In the present invention, the TDM-PON ONT _RT forms a communication channel for transmitting and receiving the RT control signal and the RT report signal between the remote relay device and the TDM-PON OLT, and is used in the TDM-PON ONT of the subscriber (eg, lane). GX, DBA, etc.) performs RT control signal reception and RT report signal transmission using the time slot allocated from TDM-PON OLT.

Figure 7a is a configuration diagram of an embodiment of a remote relay device of the optical transceiver sharing structure of the ONT for remote management using a switch according to the present invention, Figure 7b is a diagram of the ONT for remote management using a logic circuit according to the present invention One embodiment configuration of a remote relay device of the optical transceiver shared structure.

Instead of having a TDM-PON ONT _RT including a TDM-PON MAC & PHY module and a TDM-PON optical transceiver (TDM-PON TR _BMT ) in the remote relay device described above with reference to FIGS. 6A and 6B, FIGS. The function of the TDM-PON optical transceiver (TDM-PON TR _BMT ) of the TDM-PON ONT _RT of FIG. 6B is performed using the first TDM-PON optical transmitter (TDM-PON TR _BMT ) 51 of the remote relay device. 6A and 6B, only the TDM-PON MAC & PHY module (hereinafter, also referred to as "remote management TDM-PON MAC & PHY module") is provided, not the TDM-PON ONT _RT .

That is, in the remote relay device of the ONT optical transceiver shared structure shown in FIGS. 7A and 7B, respectively, the TDM-PON MAC & PHY module for remote management is electrically connected to the remote relay device instead of optically. In addition, the remote repeater of the ONT optical transmitter shared structure shown in Figures 7a and 7b, the first TDM-PON optical transmitter (TDM-PON TR _BMT ) ( 51) the structure of sharing the device has the advantage of reducing the device configuration cost.

For example, the same operation as the optical splitter (coupler of FIGS. 6A and 6B) should be performed in order to implement an ONT optical transceiver sharing structure for remote management as an electrical connection method in a remote relay device. Here, the optical splitter function in the TDM-PON simply combines a broadcast function for distributing the same downlink signal to each ONT in the downlink signal path and a burst mode characteristic signal from each ONT in the uplink path. It means the function for. When the optical splitter function is implemented in the remote relay device, the TDM-PON optical transceiver (TDM-PON TR _BMT ) of the TDM-PON ONT _RT for remote management can be removed.

FIG. 7A shows a remote relay device having a structure sharing a first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51 using a switch, and FIG. 7B shows a first TDM-PON optical transmitter / receiver (TDM-PON) using a logic circuit. PON TR _BMT ) 51 are shown, respectively, of a remote relay apparatus having a structure shared. First, FIG. 7A will be described.

The remote relay apparatus illustrated in FIG. 7A includes a controller 100, a remote management TDM-PON MAC & PHY module 101, and a switch 102.

Referring to the downlink path [TDM-PON OLT => TDM-PON ONT or remote relay device], the downlink signal transmitted from the TDM-PON OLT is transmitted from the first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51. After the optical / electric conversion, through the downlink signal regeneration unit (SR _DN ) 52, not only the second TDM-PON optical transceiver (TDM-PON TR _BMR ) 54, but also the TDM-PON MAC & PHY module 101 for remote management. The TDM-PON MAC & PHY module 101 for remote management transmits the RT control signal coming to the controller 100 from the downlink signal to the controller 100 (the signal directed to the TDM-PON ONT from the downlink signal is discarded). .

Looking at the uplink signal path [TDM-PON ONT or remote repeater => TDM-PON OLT], the signal of the TDM-PON ONT, which is optically / pre-converted by the uplink signal regeneration unit SR _UP 53, is switched (102). Through the first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51 is transmitted to the TDM-PON OLT side, the RT report signal generated by the control unit 100 is remote management TDM-PON MAC & PHY module 101 ) Is transmitted to the TDM-PON OLT side via a first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51 via the switch 102.

In particular, since the remote relay device has a shared structure for transmitting the first TDM-PON TR _BMT 51 to the TDM-PON ONT signal transmission and its own (remote relay device) RT report signal transmission, In FIG. 7A, the signal path of the switch 102 is changed by using a burst enable (BURST_EN) signal of the TDM-PON MAC & PHY module 101 for remote management. For example, the present invention controls the optical laser on / off of the TDM-PON optical transceiver (TDM-PON TR _BMT ) in a conventional TDM-PON MAC & PHY module for controlling the switch 102 [shutdown ( shut down)] Use the provided burst enable signal.

That is, when the RT report signal is transmitted from the remote relay device to the TDM-PON OLT side, the RT report signal generated by the control unit 100 is input to the TDM-PON MAC & PHY module 101 for remote management, and this TDM-PON When the time slot assigned to the MAC & PHY module 101 arrives, it sends a burst enable signal to the switch 102 to change the signal path on the switch 102 to send the RT report signal to the first TDM-PON optical transceiver (TDM). PON TR _BMT ) 51.

And the default signal path of the switch 102 is a structure for connecting the first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51 and the uplink signal regeneration unit (SR _UP ) 53, the remote relay device If the RT report signal is not transmitted to the TDM-PON OLT side, the TDM-PON ONT signal is transmitted to the TDM-PON OLT side as it is through the remote relay.

In FIG. 7A, a switch 102 is provided between an uplink signal regeneration unit SR _UP 53 and a first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51, for example, one side of the switch 102. The input terminal is connected to the output terminal of the uplink signal regeneration unit SR _UP 53 and the output terminal of the switch 102 is connected to the input terminal of the first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51, or another structure. By way of example, a switch 102 is provided between a second TDM-PON optical transceiver (TDM-PON TR _BMR ) 54 and an uplink signal regeneration unit (SR _UP ) 53, for example one input terminal of the switch 102 is provided. The output terminal of the second TDM-PON optical transceiver (TDM-PON TR _BMR ) 54 may be connected to the output terminal of the upstream signal regeneration unit SR _UP 53.

Meanwhile, in FIG. 7A, the receiving end Rx of the remote management TDM-PON MAC & PHY module 101 includes a downlink signal reproducing unit SR _DN 52 and a second TDM-PON optical transceiver (TDM-PON TR _BMR ) 54. ), But as another example, the receiving terminal Rx of the TDM-PON MAC & PHY module 101 for remote management is connected to a first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51 and a downlink signal reproducing unit ( SR _DN ) 52 may be provided between.

Next, a description will be given of a remote relay device having a structure in which the first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51 is shared using the logic circuit shown in FIG. 7B.

The remote relay apparatus illustrated in FIG. 7B includes a controller 100, a TDM-PON MAC & PHY module 105 for remote management, and an OR gate 106. Since the downlink signal path has been described with reference to FIG. 7A, a description thereof will be omitted.

Looking at the uplink path [TDM-PON ONT or remote relay device => TDM-PON OLT], the signal of the TDM-PON ONT at the OR gate 106 and the RT report signal of the remote relay device (generated by the controller 100). RT report signal] is output to the first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51 to be transmitted to the TDM-PON OLT side.

For example, each TDM-PON ONT on each subscriber side and the TDM-PON MAC & PHY module 105 for remote management of the remote relay device transmit their own signals (uplink signals) only when the time slot allocated from the TDM-PON OLT arrives. Transmit to TDM-PON OLT side.

That is, in the present invention [FIG. 7B], in the known TDM-PON, each OLT shuts down the optical laser except its own time slot, and only one OLT occupies the time slot and transmits a signal. Instead of performing signal rerouting control on the TDM-PON ONT signal transmission and the RT report signal transmission of the remote relay device, the TDM-PON ONT signal and the remote relay device RT are only used using a logic circuit such as the OR gate 106. A structure is provided in which a report signal is connected (connected) to a first TDM-PON optical transceiver (TDM-PON TR _BMT ) 51. By doing so, it can be confirmed that the burst enable signal is not used for the switch control (signal path change control) in the remote relay apparatus shown in FIG. 7B.

Meanwhile, although the OR gate is used as the logic circuit in the remote relay device illustrated in FIG. 7B, the gate relay may be implemented using a conventional high speed gate device or an FPGA or an ASIC.

On the other hand, the downlink signal regeneration unit (SR _DN ) 52 selectively selects each of the transmission and reception terminals of the TDM-PON MAC & PHY module 105 for remote management and the input / output terminals of the OR gate 106 on the remote relay apparatus shown in FIG. It may be implemented at the front end or the rear end of the uplink signal regeneration unit SR _UP 53. For example, one input terminal of the OR gate 106 may be connected to an output terminal of the uplink signal regenerator, or may be connected to an output terminal of the second TDM-PON optical transceiver.

In particular, typically implemented by paying attention to the possible points 2R regeneration technique using the OR gate, the present invention [Fig. 7b] In hagoseo remove the uplink signal reproducing section (SR _UP) (53) of claim 2 TDM-PON optical transceiver (TDM- The output terminal of the PON TR _BMR ) 54 may be connected to the input terminal of the OR gate 106.

A plurality of remote relay devices described with reference to Figs. 3 to 7B may be provided to configure a remote relay bank (RT bank) (also called a remote relay system). For example, each remote relay device provided on the remote relay device bank is connected to a splitter on each TDM-PON OLT and each TDM-PON ONT side, so that each of the remote relay devices is connected between the TDM-PON OLT and the TDM-PON ONT. Relay the signal. Such a remote relay bank is not described through separate drawings, but may be easily understood through a configuration of a remote relay bank having a remote management function illustrated in FIG. 8A.

Hereinafter, a remote relay bank having a remote management function will be described with reference to FIGS. 8A to 8E.

In the present invention, a plurality of remote relay devices are configured in parallel in the remote relay bank, and each remote relay device is remotely managed in a remote relay device bank unit by TDM-PON OLT. Instead of having a management function, it is provided with a remote management device (RT _S ; RT with supervisory function) for remote management connected to the control unit of the remote relay device bank.

The remote management device (RT _S ) for remote management is controlled by a control unit of a remote relay device bank, and receives the RT control signal and the RT report signal transmission for each remote relay device on the remote relay device bank. Perform the function.

8A is a diagram illustrating an embodiment of a remote relay device bank including a remote management remote relay device equipped with an OSC optical transceiver for remote management according to the present invention.

The remote management device (RT _S ) 110 illustrated in FIG. 8A includes multiple OSC optical transmitters for remote management described with reference to FIG. 5B.

On the other hand, the remote management remote relay device (RT _S ) shown in FIG. The relay device (RT _S ) 110 may be provided with only the first OSC optical transmitter as described with reference to FIG. 5A. This is because it is not necessary to include the second OSC optical transmitter and receiver in the subscriber side direction (rear of the remote relay apparatus for remote management) in the final bank of the subscriber station according to the optical network configuration.

FIG. 8B is a configuration diagram of a remote relay device bank including a remote management device for remote management provided with an ONT for remote management according to the present invention, and FIG. 8C is a diagram for remote management according to the present invention. One embodiment is a configuration diagram for a remote relay bank including a remote management remote relay device provided on the rear end of the ONT.

Remote management device (RT _S ) 120 for remote management illustrated in FIG. 8B includes an ONT for remote management described above with reference to FIG. 6A.

Remote control device (RT _S ) 130 for remote management shown in Figure 8c is provided with the ONT for the remote management described with reference to Figure 6b at the rear end.

FIG. 8D is a configuration diagram of an embodiment of a remote relay device bank including a remote relay device for remote management of an ONT optical transceiver sharing structure for remote management using a switch according to the present invention, and FIG. One embodiment configuration of a remote relay bank including a remote relay device for remote management of ONT's optical transceiver shared structure for remote management using a logic circuit.

Remote management device (RT _S ) 140 for remote management shown in Figure 8d is made of a structure for sharing the optical transmitter of the ONT for remote management by using the switch described with reference to Figure 7a, shown in Figure 8e Remote management device (RT _S ) 150 for remote management is configured to share the optical transmitter and receiver of ONT for remote management using the logic circuit described with reference to FIG. 7B.

The remote relay device described above with reference to FIGS. 8A to 8E, preferably, a remote relay device having a basic configuration without a remote management function, can be implemented in a WDM / TDM composite optical network. have.

FIG. 9A is a diagram illustrating an embodiment of a WDM / TDM hybrid optical network to which a remote relay device according to the present invention is applied. In order to understand the present invention, a WDM / TDM hybrid optical network will be described first.

As shown in FIG. 9A, the composite optical network to which the present invention is applied is based on a hybrid optical network (Hybrid-PON) in which TDM-PON and WDM-PON are combined. H-OLT "), an optical signal distribution (optical) signal to the subscriber's optical path subscriber device (hereinafter referred to as" TDM-PON ONT ") 300, and the TDM-PON ONT on each subscriber side. And a plurality of splitters 400 for signal power branching and optical signal power combining), and between the H-OLT and the plurality of splitters, a remote relay device for a WDM / TDM composite optical network according to the present invention ( Remote terminal for distribution (RT _D ) 500 is provided. The remote relay device (RT _D ) 500 for the WDM / TDM composite optical network relays one H-OLT and M splitters [1 × M].

The H-OLT 200 includes a plurality of TDM-PON MAC & PHY modules 210 and WDM optical transceivers (WDM TR) 220 that are matched 1: 1 with each other, and WDM wavelength branch coupling of each WDM optical transmitter is performed. One WDM Mux 230 is provided.

The TDM-PON ONT 300 includes a TDM-PON MAC & PHY module 310 and a TDM-PON optical transceiver (TDM-PON TR _BMT ) 320 that are matched 1: 1 with each other, and are WDM / TDM composite optical network. This TDM-PON ONT 300 is configured in the same configuration as the TDM-PON ONT, which is a TDM-PON-based subscriber device described with reference to FIG.

The remote relay device (RT _D ) 500 for the WDM / TDM composite optical network shown in FIG. 9A will now be described in detail with reference to FIG. 9B.

9B is a basic configuration diagram of a remote relay device for a WDM / TDM composite optical network according to the present invention.

As shown in FIG. 9B, the remote relay device (RT _D ) 500 for the WDM / TDM composite optical network splits and converts the downlink WDM optical signals received from the H-OLT side into M downlink TDM optical signals. Transmits to the splitter side corresponding to the corresponding wavelength channel, and converts and wavelength-combines M uplink TDM optical signals received from each splitter side and transmits the uplink WDM optical signal to the H-OLT side. . To this end, it includes a WDM mux (WDM Mux, also known as WDM wavelength branch combiner) 510, and a plurality of WDM / TDM optical relay modules 520.

The WDM mux 510 branches / combines a WDM optical signal (uplink wavelength: λ _u1 to λ _uM and downward wavelength: λ _d1 to λ _dM ) transmitted / received (connected) with the H-OLT side for each wavelength channel. do.

The WDM / TDM optical relay module 520 includes a WDM optical transceiver (WDM TR) 521, a downlink signal reproduction unit (SR _DN ) 522, an uplink signal reproduction unit (SR _UP ) 523, and a TDM-PON optical receiver. Transceiver (TDM-PON TR _BMR ) 524.

The WDM optical transceiver (WDM TR) 521 optically converts the downlink WDM optical signal received from the H-OLT side through the WDM mux 510 to the downlink signal reproduction unit (SR _DN ) 522. do. In addition, the WDM optical transceiver (WDM TR) 521 converts the upstream TDM electrical signal received from the upstream signal regeneration unit (SR _UP ) 523 into an upstream WDM optical signal and converts the optical signal into an upstream WDM optical signal. Send to the OLT side.

The downlink signal regeneration unit (SR _DN ) 522 compensates for the distortion and loss of the electrical signal (downlink signal) converted by the WDM optical transceiver (WDM TR) 521, and the uplink signal regeneration unit (SR _UP ) ( 523 compensates for the distortion and loss of the electrical signal (upstream signal) converted in the TDM-PON _TRBMR 524. The downlink signal reproducing unit and the uplink signal reproducing unit provided in the WDM / TDM optical relay module 520 on the remote relay device (RT _D ) 500 for the WDM / TDM composite optical network described above have been described with reference to FIG. 3. And an operation method may be selectively employed.

The TDM-PON optical transceiver (TDM-PON TR _BMR ) 524 converts the uplink TDM optical signal received from the splitter side by optical / pre conversion and outputs it to the uplink signal regeneration unit (SR _UP ) 523. In addition, the TDM-PON optical transceiver (TDM-PON TR _BMR ) 524 transmits to the splitter side by converting the down TDM electrical signal received from the downlink signal regeneration unit (SR _DN ) 522 into a downlink TDM optical signal. do. The TDM-PON optical transceiver (TDM-PON TR _BMR ) 524 is implemented as a transceiver with burst-mode receiver (TR _BMR ) with a burst mode reception function, and is provided in the TDM-PON OLT You can use the transceiver as it is.

Meanwhile, each WDM / TDM optical relay module 520 may be detachably provided as a single channel card in a remote relay device (RT _D ) 500 for a WDM / TDM composite optical network.

Next, a structure having a remote management function in the remote relay device for a WDM / TDM composite optical network described with reference to FIG. 9B will be described.

Hereinafter, a remote relay apparatus for a WDM / TDM composite optical network equipped with a remote management function will be described with reference to FIGS. 10A to 10C.

Similar to the configuration of the remote relay bank with the remote management function described above with reference to FIGS. 8A to 8E, the remote management function for the WDM / TDM composite optical network may be provided.

However, considering that the optical signal wavelengths at the front and rear ends of the remote relay device for the WDM / TDM composite optical network are different from each other, a component for performing the remote management function is placed at the rear end of the remote relay device for the WDM / TDM composite optical network. Equipped.

That is, in the present invention, a plurality of WDM / TDM optical relay module in parallel in the remote relay device for WDM / TDM composite optical network, one remote management connected to the control unit of the remote relay device for WDM / TDM composite optical network A WDM / TDM optical relay module is provided to allow remote management of each WDM / TDM optical relay module. For example, the WDM / TDM optical relay module for remote management has a TDM-PON ONT _RT whose operation is controlled by a remote relay device for a WDM / TDM composite optical network, and the TDM-PON ONT _RT is a WDM / TDM It performs by integrating functions for each RT control signal reception and RT report signal transmission for each WDM / TDM optical relay module on a remote relay device for a composite optical network.

10A is a diagram illustrating an embodiment of a remote relay device for a WDM / TDM complex optical network equipped with a TDM-PON ONT _RT for remote management according to the present invention, and FIG. 10B is a remote management using a switch according to the present invention. An embodiment of a remote relay device for a WDM / TDM composite optical network of the optical transmitter and receiver shared structure of the TDM-PON ONT _RT , Figure 10c is a TDM-PON for remote management using a logic circuit according to the present invention One embodiment configuration of a remote relay device for a WDM / TDM composite optical network having an ONT _RT shared transceiver structure.

The WDM / TDM optical relay module 560 for remote management illustrated in FIG. 10A includes a TDM-PON ONT _RT for a remote management of the method described with reference to FIG. 8C at a rear end thereof.

The WDM / TDM optical relay module 570 for remote management shown in FIG. 10B is configured to share an optical receiver of a TDM-PON ONT _RT for remote management using a switch of the method described with reference to FIG. 8D.

The WDM / TDM optical relay module 580 for remote management shown in FIG. 10C is configured to share an optical transceiver of a TDM-PON ONT _RT for remote management using a logic circuit of the method described with reference to FIG. 8E. .

Next, a network structure having a structure different from that of the WDM / TDM composite optical network to which the remote relay device (RT _D ) for the WDM / TDM composite optical network described with reference to FIG. 9A is applied, and applied to each WDM / TDM composite optical network Each remote relay device for a WDM / TDM composite optical network will be briefly described with reference to FIGS. 11A and 11B, respectively.

For example, the remote relay device for the WDM / TDM hybrid optical network equipped with the WDM / TDM optical relay module for remote management described with reference to FIGS. 10A to 10C may be applied to a WDM / TDM hybrid optical network having a different network configuration. To show.

11A is a diagram illustrating an embodiment of a WDM / TDM composite optical network having a bus structure according to the present invention.

As shown in FIG. 11A, each drop-type remote relay device (RT _DM ) 601, 602, 603 is connected in series in a bus structure from the H-OLT 200 on the WDM / TDM composite optical network. and, it is connected to each of the plurality of splitter 400, each drop-shaped remote repeater (RT _DM) (601,602,603) for WDM / TDM hybrid optical network.

The remote relay device (RT _DM ) for the drop type WDM / TDM composite optical network performs a function of branching a specific wavelength or a bundle of wavelengths and delivering the splitted wavelengths to a splitter. For example, each remote relay device (RT _DM ) for the drop type WDM / TDM hybrid optical network branches each M ₁ to M _L-1 wavelength channels, and the remaining remote relay device for the next drop type WDM / TDM hybrid optical network is (RT _DM )

The WDM / TDM composite optical network of the bus structure as described above will be described. All the WDM / TDM composite optical networks described so far are point-to-multipoint network structures, but are point-to-point when the subscribers are distributed in small groups. Rather, the WDM / TDM composite optical network of the bus structure shown in FIG. 11A can benefit from the reduction of the fiber infrastructure cost.

In the present invention, the WDM / TDM optical relay module for remote management is provided in the drop-type WDM / TDM composite optical network remote relay device (RT _DM ) on the WDM / TDM composite optical network having the bus structure as described above, and the H-OLT ( Enable remote management from 200).

11B is a diagram illustrating an embodiment of a WDM / TDM composite optical network having an increased signal transmission distance according to the present invention.

As shown in FIG. 11B, the WDM / TDM composite optical network for increasing the transmission distance to increase the signal transmission distance between the H-OLT 200 and the remote relay device (RT _D ) 500 for the WDM / TDM composite optical network Remote terminal for concatenation (RT _C ) (701, 702) is connected in series.

The remote repeater (RT _C ) for the WDM / TDM composite optical network for transmission distance extension performs an optical-to-optical conversion function similarly to the remote repeater (RT _D ) 500 for the WDM / TDM composite optical network. Or may be implemented with an optical amplifier.

In the present invention, the WDM / TDM optical relay module for remote management is provided in a remote relay device (RT _C ) for WDM / TDM composite optical network for increasing the transmission distance on the WDM / TDM composite optical network which has increased the signal transmission distance as described above. This enables remote management from the H-OLT 200.

Next, another structure of the remote relay apparatus described with reference to FIG. 6A will be described with reference to FIG. 12.

12 is a diagram illustrating an embodiment of a remote relay apparatus having an ONT detachably attached to a front end for remote management according to the present invention.

As shown in FIG. 12, a remote management TDM-PON ONT _RT 800 is detachably provided at the remote relay device.

That is, the input and output terminals of the TDM-PON optical transceiver (TDM-PON TR _BMT ) 801 of the TDM-PON ONT _RT 800 for remote management are connected to the input and output terminals of the first coupler 91 by an optical connector. An input / output terminal of the TDM-PON MAC & PHY module 802 of the management TDM-PON ONT _RT 800 and the input / output terminal of the control unit 90 are connected by an electrical connector (eg, UTP). This removes the removable remote management TDM-PON ONT _RT (800) from the remote relay in normal operation without the need for remote management, and operates the remote relay device when the remote management is needed. The PON ONT _RT 800 is attached to a remote relay device to perform its remote management.

On the other hand, it can be implemented as removable as described with FIG TDM-PON ONT _RT of Figure 6b of the TDM-PON ONT _RT, Figure 8b of the TDM-PON ONT _RT, Figure 8c of the TDM-PON ONT _RT and Figure 10a, see Figure 6a have.

Next, an optical network having a redundant line and a remote relay device applied to the optical network will be briefly described with reference to FIG.

For example, a remote relay device according to the present invention described with reference to FIGS. 2 to 12, for example, a remote relay device having a basic configuration, a remote relay device having a G-PON / E-PON combined use, and a remote management function. Relay unit, remote relay unit for WDM / TDM composite optical network (RT _D ), remote relay unit for drop type WDM / TDM composite optical network (RT _DM ), remote relay unit for WDM / TDM composite optical network for transmission distance extension ( RT _C ) and a remote repeater equipped with a remote management function using a removable ONT may be applied to an optical network having a redundant line.

FIG. 13 is a diagram illustrating an embodiment of a WDM / TDM composite optical network having a redundant line to which a remote relay device according to the present invention is applied.

As shown in FIG. 13, a redundant line consisting of an operation line and a protection line is constructed between the H-OLT 200 and the remote relay device 901 on the WDM / TDM composite optical network, or each remote relay device 901,902,903. It is possible to construct a redundant line consisting of a working line and a protective line. For example, when a failure occurs in the operation line between the H-OLT and the remote relay device, the signal is transmitted and received by switching to the protection line or when the failure occurs in the operation line between the remote relay devices, the signal is transmitted and received.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

1 is a configuration diagram of an embodiment of a TDM-PON according to the prior art,

2 is a diagram illustrating an embodiment of a TDM-PON to which a remote relay apparatus according to the present invention is applied;

3 is a basic configuration diagram of a remote relay apparatus according to the present invention,

Figure 4a is a configuration diagram of an embodiment of a remote relay device with a downlink speed selection function according to the present invention,

Figure 4b is a block diagram of an embodiment of a remote relay device with a downlink speed detection function according to the present invention,

Figure 5a is a configuration diagram of an embodiment of a remote relay device equipped with a single OSC optical transceiver for remote management according to the present invention,

Figure 5b is a configuration diagram of a remote relay device equipped with a multi-OSC optical transceiver for remote management according to the present invention,

Figure 6a is an embodiment configuration for a remote relay device provided with an ONT for the remote management in accordance with the present invention,

Figure 6b is a configuration diagram of an embodiment of a remote relay device having a rear end ONT for remote management according to the present invention,

Figure 7a is a configuration diagram of an embodiment of a remote relay device of the optical transmitter and receiver sharing structure of the ONT for remote management using a switch according to the present invention,

FIG. 7B is a configuration diagram of an embodiment of a remote relay apparatus of an ONT optical transceiver sharing structure for remote management using a logic circuit according to the present invention; FIG.

8A is a configuration diagram of a remote relay device bank including a remote management device for remote management provided with an OSC optical transceiver for remote management according to the present invention;

8B is a diagram illustrating an embodiment of a remote relay device bank including a remote management device for remote management provided with an ONT for remote management according to the present invention;

8C is a diagram illustrating an embodiment of a remote relay device bank including a remote management device for remote management having an ONT for remote management according to the present invention;

FIG. 8D is a configuration diagram of a remote relay device bank including a remote relay device for remote management of an ONT optical transceiver shared structure for remote management using a switch according to the present invention; FIG.

8E is a diagram illustrating an embodiment of a remote relay device bank including a remote relay device for remote management of an ONT optical transceiver shared structure for remote management using a logic circuit according to the present invention;

9A is a diagram illustrating an embodiment of a WDM / TDM composite optical network to which a remote relay device according to the present invention is applied;

9B is a basic diagram of a remote relay device for a WDM / TDM composite optical network according to the present invention;

10A is a diagram illustrating an embodiment of a remote relay device for a WDM / TDM composite optical network equipped with a TDM-PON ONT _RT for remote management according to the present invention;

10B is a diagram illustrating an embodiment of a remote relay apparatus for a WDM / TDM composite optical network having a shared structure of an optical transceiver of a TDM-PON ONT _RT for remote management using a switch according to the present invention;

10c is a diagram illustrating an embodiment of a remote relay apparatus for a WDM / TDM composite optical network having a shared structure of an optical transceiver of a TDM-PON ONT _RT for remote management using a logic circuit according to the present invention;

11A is a diagram illustrating an embodiment of a WDM / TDM composite optical network having a bus structure according to the present invention;

11B is a diagram illustrating an embodiment of a WDM / TDM composite optical network having an increased signal transmission distance according to the present invention;

12 is a configuration diagram of an embodiment of a remote relay device having a detachable ONT for a remote management according to the present invention;

FIG. 13 is a diagram illustrating an embodiment of a WDM / TDM composite optical network having a redundant line to which a remote relay device according to the present invention is applied.

* Explanation of symbols on the main parts of the drawing

51: first TDM-PON optical transceiver (TDM-PON TR _BMT )

52: downlink signal reproduction unit (SR _DN )

53: uplink signal regeneration unit (SR _UP )

54: second TDM-PON optical transmitter (TDM-PON TR _BMR )

Claims (58)

In the remote relay device, A first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with a TDM-PON OLT of a national company; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; And The second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; TDM-PON based remote relay device comprising a. The method of claim 1, The first TDM-PON optical transmitter, Converting the downlink signal of the continuous characteristic received from the TDM-PON OLT side to the TDM-PON OLT side by converting the uplink signal of the burst mode characteristic received from the signal reproducing unit to the TDM-PON OLT side. TDM-PON based remote relay device. The method of claim 1, The second TDM-PON optical transmitter, Converting the downlink signal of the continuous characteristic inputted from the signal reproducing unit to the TDM-PON ONT side by performing pre / optical conversion and converting the uplink signal of the burst mode characteristic received from the TDM-PON ONT side to photo / pre conversion. TDM-PON based remote relay device. The method according to any one of claims 1 to 3, The signal reproducing unit, A downlink signal reproducing unit for compensating for the distortion and loss of the downlink signal received from the first TDM-PON optical transceiver; And An uplink signal reproducing unit for compensating for the distortion and loss of the uplink signal received from the second TDM-PON optical transceiver; TDM-PON based remote relay device comprising a. The method of claim 4, wherein Each of the downlink signal regenerator and the uplink signal regenerator, It reproduces the signal of the corresponding speed by using one of the signal regeneration techniques of 2R regeneration method using buffer, 3R regeneration method using Clock and Data Recovery (CDR), and multi-rate CDR regeneration method. TDM-PON based remote relay device. In the G-PON / E-PON combined remote relay device, A first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with a TDM-PON OLT of a national company; A downlink signal reproducing unit for reproducing a downlink signal received from the first TDM-PON optical transceiver; An uplink signal reproducing unit for reproducing an uplink signal received from a second TDM-PON optical transmitter; And Including the second TDM-PON optical transmitter and receiver for transmitting and receiving uplink signals and downlink signals with the TDM-PON ONT of the subscriber side, A bit rate selecting means and a switching means are provided on the downlink signal reproducing unit, and the transmission rate of the downlink signal is selected as one of a G-PON transmission rate and an E-PON transmission rate. -PON based remote relay device. The method of claim 6, The switching means, TDM-PON-based remote relay device, characterized in that driven by the switch adjustment signal received from the outside to control the bit rate selection means. In the G-PON / E-PON combined remote relay device, A first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with a TDM-PON OLT of a national company; A downlink signal reproducing unit for reproducing a downlink signal received from the first TDM-PON optical transceiver; An uplink signal reproducing unit for reproducing an uplink signal received from a second TDM-PON optical transmitter; A second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; And It includes a rate detection unit for detecting the transmission rate of the downlink signal received from the first TDM-PON optical transceiver, A bit rate selecting means is provided on the downlink signal reproducing unit, and the transmission rate of the downlink signal is selected as one of the G-PON transmission rate and the E-PON transmission rate according to the transmission rate detected by the transmission rate detection unit. TDM-PON based remote relay device, characterized in that. The method of claim 6 or 8, The uplink signal reproducing unit, TDM-PON-based remote repeater, characterized in that the uplink signal is reproduced by using a 2R reproduction method using a buffer. In the remote relay device equipped with a remote management function, A first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with a TDM-PON OLT of a national company; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; A second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; And A first optical supervisory channel (OSC) optical transmission / reception module for forming a communication channel having a specific wavelength with the TDM-PON OLT and transmitting and receiving a remote relay control signal and a remote relay report signal with the TDM-PON OLT side. TDM-PON based remote relay device comprising a. The method of claim 10, The first OSC optical transmission module, First filtering means for filtering a remote control device control signal from a signal received from the TDM-PON OLT side; And A first OSC optical transmitter and receiver for optically / electrically converting a remote repeater control signal filtered by the first filtering means and for converting a remote repeater report signal generated inside the remote repeater. TDM-PON based remote relay device comprising a. The method of claim 10, A second OSC optical transmission / reception module for forming a communication channel having a specific wavelength with another remote relay device and for relaying a remote relay control signal and a remote relay report signal between the TDM-PON OLT side and the remote relay device; TDM-PON based remote relay device further comprising. The method of claim 12, The second OSC optical transmission module, Second filtering means for filtering a remote relay report signal from a signal received from the other remote relay device and filtering a remote relay control signal directed to another remote relay device from a signal received from the TDM-PON OLT side; And Transmitting the remote repeater report signal of the other remote relay device received through the second filtering means to the TDM-PON OLT side, and transmits the remote relay control signal of the TDM-PON OLT to the other remote relay device side. 2nd OSC optical transmitter TDM-PON based remote relay device comprising a. In the remote relay device equipped with a remote management function, A first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with a TDM-PON OLT of a national company; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; A second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; And TDM-PON ONT for remote management for transmitting and receiving the TDM-PON OLT and the remote control device control signal and the remote repeater report signal using the time slot allocated from the TDM-PON OLT side TDM-PON based remote relay device comprising a. The method of claim 14, TDM-PON ONT for remote management First coupling means for connecting an optical connector to the optical connection portion on the first TDM-PON optical transmitter side TDM-PON based remote relay device further comprising. The method of claim 15, The TDM-PON ONT for remote management, TDM-PON-based remote relay device having a removable structure connected to the first coupling means and an optical connector, connected to the control unit and the electrical connector of the remote relay device. The method of claim 14, Second coupling means for connecting the remote management TDM-PON ONT to the optical connection portion on the side of the second TDM-PON optical transceiver; TDM-PON based remote relay device further comprising. The method of claim 17, The TDM-PON ONT for remote management, TDM-PON-based remote relay device having a removable structure connected to the second coupling means and an optical connector, connected to the control unit and the electrical connector of the remote relay device. In the remote relay device equipped with a remote management function, A first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with a TDM-PON OLT of a national company; A downlink signal reproducing unit for reproducing a downlink signal received from the first TDM-PON optical transceiver; An uplink signal reproducing unit for reproducing an uplink signal received from a second TDM-PON optical transmitter; A second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; Switching means for switching an input signal to the first TDM-PON optical transceiver; And TDM-PON MAC & PHY module for transmitting the remote relay report signal generated inside the remote relay device to the first TDM-PON optical transceiver through the switching means. TDM-PON based remote relay device comprising a. The method of claim 19, The TDM-PON MAC & PHY module, As the time slot allocated from the TDM-PON OLT arrives, the TDM-PON-based remote uses a burst enable signal generated from the TDM-POM MAC as a control signal to change the signal path of the switching means. Relay device. The method of claim 19, The TDM-PON MAC & PHY module, TDM-PON-based remote repeater, characterized in that for receiving the remote control signal to the remote relay device from among the down signal of the TDM-PON OLT output from the first TDM-PON optical transceiver. The method of claim 19, The switching means, TDM-PON-based remote relay device, characterized in that one side of its input terminal is connected to the output terminal of the uplink signal regenerator, and its output terminal is connected to the electrical signal input terminal of the first TDM-PON optical transceiver. The method of claim 19, The switching means, TDM-PON-based remote relay device, characterized in that one side of its input terminal is connected to the electrical signal output terminal of the second TDM-PON optical transmitter, and its output terminal is connected to the input terminal of the uplink signal regeneration unit. The method of claim 19, And a receiving end of the TDM-PON MAC & PHY module is connected to any one of an input end and an output end of the downlink signal regeneration unit. In the remote relay device equipped with a remote management function, A first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with a TDM-PON OLT of a national company; A downlink signal reproducing unit for reproducing a downlink signal received from the first TDM-PON optical transceiver; A second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with a TDM-PON ONT of a subscriber; Logic operation means for outputting any one of an input signal to the first TDM-PON optical transceiver; And TDM-PON MAC & PHY module for transmitting the remote relay report signal generated inside the remote relay device to the first TDM-PON optical transceiver through the logical operation means TDM-PON based remote relay device comprising a. The method of claim 25, The TDM-PON MAC & PHY module, As the time slot allocated from the TDM-PON OLT side arrives, the TDM-PON-based remote controller transmits the remote relay report signal to the first TDM-PON optical transceiver according to the logical operation means. Relay device. The method of claim 25, The TDM-PON MAC & PHY module, TDM-PON-based remote repeater, characterized in that for receiving the remote control signal to the remote relay device from among the down signal of the TDM-PON OLT output from the first TDM-PON optical transceiver. The method of claim 25, The logic operation means, TDM-PON-based remote relay device, characterized in that implemented by any one of an OR gate, a high-speed gate device, FPGA and ASIC. The method of claim 25, The logic operation means has a structure in which one side of its input terminal is connected to an output terminal of the second TDM-PON optical transceiver and its output terminal is connected to an electrical signal input terminal of the first TDM-PON optical transceiver. TDM-PON based remote relay device. The method of claim 25, The receiving terminal of the TDM-PON MAC & PHY module is connected to any one of an input terminal or an output terminal of the downlink signal regeneration unit. The method of claim 25, An uplink signal reproducing unit for reproducing an uplink signal received from the second TDM-PON optical transceiver; TDM-PON based remote relay device further comprising. The method of claim 31, wherein The uplink signal reproducing unit, TDM-PON-based remote relay device, characterized in that its input terminal is connected to the electrical signal output terminal of the second TDM-PON optical transmitter, and its output terminal is connected to one input terminal of the logical operation means. The method of claim 31, wherein The uplink signal reproducing unit, TDM-PON-based remote relay device, characterized in that its input terminal is connected to the output terminal of the logical operation means, and its output terminal is connected to the electrical signal input terminal of the first TDM-PON optical transceiver. In the remote relay system, A first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with each TMS-PON OLT at the head office; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; And The second TDM-PON optical transceiver for transmitting and receiving an uplink signal and a downlink signal with each subscriber-side TDM-PON ONT; TDM-PON-based remote relay system, characterized in that it comprises at least one remote relay device comprising a. In the remote repeater system equipped with a remote management function, A first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with each TMS-PON OLT at the head office; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; And At least one remote relay device including the second TDM-PON optical transceiver for transmitting and receiving uplink signals and downlink signals to and from each subscriber side TDM-PON ONT, At least one of the remote relay device, An OSC optical transmission / reception module for forming a communication channel having a specific wavelength with a specific TDM-PON OLT among the TDM-PON OLTs, and transmitting and receiving a remote relay control signal and a remote relay report signal for each remote relay device. TDM-PON-based remote repeater system comprising a. In the remote repeater system equipped with a remote management function, A first TDM-PON optical transmitter / receiver for transmitting and receiving a downlink signal and an uplink signal with each TMS-PON OLT at the head office; A signal reproducing unit for reproducing each of the downlink signal received from the first TDM-PON optical transceiver and the uplink signal received from the second TDM-PON optical transceiver; And At least one remote relay device including the second TDM-PON optical transceiver for transmitting and receiving uplink signals and downlink signals to and from each subscriber side TDM-PON ONT, At least one of the remote relay device, TDM-PON ONT for remote management for transmitting / receiving a remote relay control signal and a remote relay report signal for each remote relay device using a time slot allocated from a specific TDM-PON OLT side among the TDM-PON OLTs TDM-PON-based remote repeater system comprising a. The method of claim 36, The remote relay device including the remote management TDM-PON ONT, First coupling means for connecting the remote management TDM-PON ONT to an optical connection portion on the side of the first TDM-PON optical transceiver; TDM-PON-based remote relay system, characterized in that it further comprises. The method of claim 37, wherein The TDM-PON ONT for remote management, TDM-PON-based remote repeater system, characterized in that having a removable structure connected to the first coupling means and an optical connector, connected to the control unit and the electrical connector of the remote relay system. The method of claim 36, The remote relay device including the remote management TDM-PON ONT, Second coupling means for connecting the remote management TDM-PON ONT to the optical connection portion on the side of the second TDM-PON optical transceiver; TDM-PON-based remote relay system, characterized in that it further comprises. The method of claim 38, The TDM-PON ONT for remote management, TDM-PON-based remote relay system, characterized in that having a removable structure connected to the second coupling means and an optical connector, connected to the control unit and the electrical connector of the remote relay system. In the remote repeater system equipped with a remote management function, At least one remote relay device for relaying the downlink signal and the uplink signal between each TDM-PON OLT and each subscriber side TDM-PON ONT, Any one of the remote relay device, Switching means for switching an input signal to a specific TDM-PON OLT side of the TDM-PON OLTs; And TDM-PON based remote relay system, characterized in that it comprises a TDM-PON MAC & PHY module for transmitting the remote relay report signal for each remote relay device to the specific TDM-PON OLT side through the switching means. . 42. The method of claim 41 wherein The TDM-PON MAC & PHY module, As the time slot allocated from the TDM-PON OLT arrives, a TDM-PON-based remote path may be changed by using a burst enable signal generated in the TDM-POM MAC as a control signal. Relay system. In the remote repeater system equipped with a remote management function, At least one remote relay device for relaying the downlink signal and the uplink signal between each TDM-PON OLT and each subscriber side TDM-PON ONT, Any one of the remote relay device, Logic operation means for outputting one of the input signals to a specific TDM-PON OLT side of the TDM-PON OLTs; And TDM-PON-based remote relay device comprising a TDM-PON MAC & PHY module for transmitting a remote relay report signal for each remote relay device through the logical operation means to the specific TDM-PON OLT side system. The method of claim 43, The TDM-PON MAC & PHY module, As the time slot allocated from the specific TDM-PON OLT side arrives, a TDM-PON OLT side transmits a remote relay report signal for each remote relay device to the logical operation means and transmits the signal to the specific TDM-PON OLT side. -PON based remote relay system. A remote relay device in a WDM / TDM composite optical network, WDM wavelength branching combining means for branching the downlink WDM optical signal received from the H-OLT (Hybrid OLT) for each wavelength channel and combining the uplink WDM optical signal received from each WDM / TDM optical relay module; And The downlink WDM optical signal branched by the WDM wavelength splitting means is converted into a downlink TDM optical signal and transmitted to the subscriber side TDM-PON ONT corresponding to the corresponding wavelength channel, and the uplink TDM optical signal received from the subscriber side TDM-PON ONT. A plurality of WDM / TDM optical relay modules for converting a signal into an uplink WDM optical signal for transmission to the WDM wavelength branch combining means; TDM-PON based remote relay device comprising a. The method of claim 45, The WDM / TDM optical relay module, The downlink WDM optical signal branched by the WDM wavelength splitting unit converts the downlink TDM electric signal into a downlink TDM electric signal and outputs the signal to a signal reproducing unit. WDM optical transmitter for transmitting to the coupling means; The signal reproducing unit for reproducing each of the downlink TDM electrical signals received from the WDM optical transceiver and the uplink TDM electrical signals received from the TDM-PON optical transceiver; And Converts the uplink TDM optical signal received from the subscriber side TDM-PON ONT into an uplink TDM electrical signal, converts the downside TDM electrical signal received from the signal reproducing unit into a downlink TDM optical signal to the subscriber side TDM-PON ONT; The TDM-PON optical transceiver for transmitting TDM-PON based remote relay device comprising a. The method of claim 46, The signal reproducing unit, A downlink signal reproducing unit for compensating for distortion and loss of the downlink TDM electric signal received from the WDM optical transceiver; And Uplink signal reproducing unit for compensating for distortion and loss of upstream TDM electrical signal received from the TDM-PON optical transceiver TDM-PON based remote relay device comprising a. The method of claim 47, Each of the downlink signal regenerator and the uplink signal regenerator, It reproduces the signal of the corresponding speed using any one of the signal regeneration method of the 2R reproduction method using the buffer, the 3R reproduction method using the Clock and Data Recovery (CDR), and the multi-rate CDR reproduction method. TDM-PON based remote relay device. In the remote relay device with a remote management function in a WDM / TDM composite optical network, WDM wavelength branching means for branching the downlink WDM optical signal received from the H-OLT on the national side for each wavelength channel and for combining the uplink WDM optical signal received from each WDM / TDM optical relay module; And The downlink WDM optical signal branched by the WDM wavelength splitting means is converted into a downlink TDM optical signal and transmitted to the first TDM-PON ONT of the subscriber corresponding to the wavelength channel, and received from the first TDM-PON ONT of the subscriber. A plurality of WDM / TDM optical relay module for converting an uplink TDM optical signal into an uplink WDM optical signal for transmission to the WDM wavelength branching means, Any one of the WDM / TDM optical relay module, And a remote management TDM-PON ONT for transmitting and receiving a remote relay control signal and a remote relay report signal for each WDM / TDM optical relay module using a time slot allocated from the H-OLT side. TDM-PON based remote relay device. The method of claim 49, The WDM / TDM optical relay module including the remote management TDM-PON ONT, Coupling means for connecting the remote management TDM-PON ONT to the optical connection portion on the TDM-PON optical transceiver side; TDM-PON-based remote relay device further comprising a. 51. The method of claim 50, The TDM-PON ONT for remote management, TDM-PON-based remote relay device having a removable structure connected to the coupling means and an optical connector, connected to the control unit and the electrical connector of the remote relay device. In the remote relay device with a remote management function in a WDM / TDM composite optical network, WDM wavelength branching means for branching the downlink WDM optical signal received from the H-OLT on the national side for each wavelength channel and for combining the uplink WDM optical signal received from each WDM / TDM optical relay module; And The downlink WDM optical signal branched by the WDM wavelength splitting means is converted into a downlink TDM optical signal and transmitted to the subscriber side TDM-PON ONT corresponding to the corresponding wavelength channel, and the uplink TDM optical signal received from the subscriber side TDM-PON ONT. A plurality of the WDM / TDM optical relay module for converting a signal into an uplink WDM optical signal for transmission to the WDM wavelength branch combining means, Any one of the WDM / TDM optical relay module, Switching means for switching an input signal to the H-OLT side; And TDM-PON based remote relay device comprising a TDM-PON MAC & PHY module for transmitting the remote relay report signal for each WDM / TDM optical relay module through the switching means to the H-OLT side . The method of claim 52, wherein The TDM-PON MAC & PHY module, As a time slot allocated from the H-OLT side arrives, a burst enable signal is used to change a signal path of the switching means to report a remote relay report signal for each WDM / TDM optical relay module. TDM-PON based remote relay device, characterized in that the transmission to the side. In the remote relay device with a remote management function in a WDM / TDM composite optical network, WDM wavelength branching means for branching the downlink WDM optical signal received from the H-OLT on the national side for each wavelength channel and for combining the uplink WDM optical signal received from each WDM / TDM optical relay module; And The downlink WDM optical signal branched by the WDM wavelength splitting means is converted into a downlink TDM optical signal and transmitted to the subscriber side TDM-PON ONT corresponding to the corresponding wavelength channel, and the uplink TDM optical signal received from the subscriber side TDM-PON ONT. A plurality of the WDM / TDM optical relay module for converting a signal into an uplink WDM optical signal for transmission to the WDM wavelength branch combining means, Any one of the WDM / TDM optical relay module, Logic operation means for outputting any one of input signals to the H-OLT side; And TDM-PON-based remote relay comprising a TDM-PON MAC & PHY module for transmitting a remote relay report signal for each WDM / TDM optical relay module to the H-OLT side through the logical operation means; Device. The method of claim 54, wherein The TDM-PON MAC & PHY module, As the time slot allocated from the H-OLT side arrives, a TDM-transmitter report signal for the WDM / TDM optical relay module is transmitted to the logical operation means and transmitted to the H-OLT side. PON based remote relay device. The method of any one of claims 49-55, The WDM / TDM composite optical network, TDM-PON-based remote relay device, characterized in that the network structure is a plurality of remote relay devices (RT _DM ) are connected in a bus structure. The method of any one of claims 49-55, The WDM / TDM composite optical network includes at least one remote relay device for signal relay of the H-OLT and signal relay of the remote relay device between the H-OLT side and the remote relay device side. TDM-PON based remote relay device. The method of any one of claims 49-55, The remote relay device, T-PON-based remote relay device comprising a redundant line consisting of the H-OLT side and the operation line and the protection line, or a redundant line consisting of another remote relay device and the operation line and the protection line.

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