KR101348121B1 - Integrated PON MAC matching apparatus for providing voice, data and video stream services, and Integrated PON ONT(ONU) apparatus using that - Google Patents

Abstract

The present invention relates to an integrated passive optical network matching device for voice, data and video services, and an integrated passive optical network termination device using the same. The present invention relates to a 10G-PON standard XG-PON1 (10G / 2.5G) in one OLT system platform. 10G / 10G integrated ONT which is used in combination with PON OLT system that accommodates all XG-PON2 (10G / 10G) and can operate as 10G / 1G 10G EPON or 10G / 10G 10G EPON according to user setting condition Or to provide an integrated ONU device suitable for enterprise use and an integrated passive optical network matching device for it.
To this end, the present invention is interworking with a plurality of terminal devices and a plurality of gigabit Ethernet interfaces, and switching packets between the plurality of terminal devices and the Passive Optical Network (PON) MAC matching means or the plurality of terminal devices and the control means. Ethernet switching means for; VoIP digital signal processing means for processing a Voice over IP (VoIP) signal in association with a plurality of telephones and the PON MAC matching means; Wireless transmission / reception means for processing a radio signal in association with a plurality of radio terminal devices and a plurality of radio interfaces, and for transmitting and receiving a packet according to the control means and a wireless service; PDH frame processing means for interworking with a plurality of dedicated terminal apparatuses through a plurality of dedicated line interfaces, and for processing a PDH (Plesiochronous Digital Hierarchy) frame in association with the PON MAC matching means; Generate one or more of a packet from the Ethernet switching means, a VoIP signal from the VoIP digital signal processing means, a PDH signal from the PDH frame processing means, and a packet from the control means into a PON frame and transmit it to an optical transceiver; Said PON pulse matching means for performing reverse operation; The optical transceiver for photoelectric or all-optical conversion of transmission and reception signals between the PON pulse matching means and the PON manganese; And the control means for controlling the operation of the integrated passive optical network termination device.

Description

Integrated PON MAC matching apparatus for providing voice, data and video stream services, and Integrated PON ONT (ONU) apparatus using that}

The present invention relates to an integrated passive optical network matching device for voice, data and video services, and an integrated passive optical network terminator using the same. More specifically, the present invention relates to a subscriber of an existing 1G time division type passive optical subscriber network (PON). The present invention relates to an integrated passive optical network matching device and a passive passive optical network termination device using the same, including a 10G passive optical subscriber network module suitable for the future gigabit service.

With the expansion of smart devices such as smart phones and the explosive demand for broadband multimedia such as IPTV (Internet Protocol Television), the advancement of subscriber networks has become a major issue in the telecom industry. In order to advance the existing xDSL (x Digital Subscriber Line) subscriber network, the ultimate goal is to establish the FTTH (Fiber To The Home), which replaces the existing copper wire with an optical cable. Alternative technologies to overcome are attracting attention. PON (Passive Optical Network) is used as the most economical method of constructing optical subscriber network.

1 is a configuration diagram of an embodiment of a general PON network.

As shown in FIG. 1, a typical PON network uses a plurality of optical fibers (Passive splitter, 2) by using passive elements such as a passive splitter (2) in order to share a single optical fiber (Feeder Fiber, 10). It has a point-to-multipoint network structure that branches to Distribution Fiber (9). The PON OLT (Optical Line Termination) system 1 is located at the network end point of this optical distribution network (ODN), and the optical network termination (ONT) is located at the subscriber end point. ONT (4 to 8) shown in Figure 1 refers to a single subscriber, in the case of ONU (Optical Network Unit, 3) refers to the equipment that is installed in the inlet of the dense subscribers, such as apartments to accommodate the aggregation function of multiple subscribers, It comes in a variety of L2 switching devices that accept existing xDSL or Ethernet subscriber lines prior to full FTTH conversion.

Although various methods have been used for transmission of subscriber information between the PON OLT system 1 and the ONU / ONT (3 to 8), the GE-PON (IEEE PON) of the IEEE 802.3ah standard may be used according to the conditions of each service provider. Gigabit Ethernet PON (Gigabit Ethernet PON) or ITU-T G.984 international standard G-PON (Gigabit-capable PON) is mostly used. The GE-PON method with uplink / downlink 1Gbps data rate is widely adopted in Japan, Korea, and China because it can accommodate a variable length Ethernet frame and is relatively inexpensive, but provides IP service efficiently, but provides TDM service. In order to provide a separate device is required, transmission efficiency is reduced due to MPCP (Multi-Point Control Protocol) overhead and 8B / 10B coding. G-PON® technology provides downlink 2.5Gbps / upward 1.25Gbps transmission speed, efficiently transmits variable-length IP service and TDM service using newly defined GPON Encapsulation Method (GEM) frame structure, and also uses it in mobile communication network. ATM protocols can be transmitted without any overhead. G-PON efficiently accommodates voice services through 125usec (8kHz) cycle frame control and is relatively low overhead and efficient due to Non-Return-to-Zero (NRZ) coding.

Japan and South Korea, the FTTH leaders, are attempting to introduce gigabit-class Internet services beyond the 100Mbps service, and are increasing the number of splitter branches to accommodate more subscribers. In addition to efforts to extend the transmission distance of existing PONs, there is a need for a technology that provides gigabit bandwidth per subscriber to realize the vision of the future IT infrastructure such as ultra-wideband, convergence, and intelligence. In particular, OTT (Over-the-top) subscribers are exploding more than CATV (Cable Television) subscribers, and IP traffic has increased tens of times a year with the advent of 3D TVs, smart TVs, and 4G smartphones. Optical subscriber network needs to be established. The most economical and realistic PON technologies for this are the 10G EPON technology under standardization in IEEE 802.3av and XG-PON under standardization in ITU-T G.987.

FIG. 2 is a diagram for explaining the concept of a 10Gbps PON, and FIG. 3 is an explanatory diagram for an optical wavelength using PON.

As shown in FIGS. 2 and 3, the upstream (US: Upstream) 1310 nm and the downstream (DS: Downstream) 1490 nm optical wavelengths used in the existing GE-PON and G-PON are 1270 nm and downward for 10G PON. 1577 nm was further allocated. As shown in FIG. 2, the 10G EPON OLT device on the left side must be fully compatible with the existing 1G / 1G EPON ONT / ONU device, and the XG-PON OLT device accommodates 2.5G / 1G GPON ONT / ONU. Should be. There is also the possibility of using OLT / ONT equipment which is asymmetrical in the downward 10G / upward 1G class. Therefore, next-generation 10G PON OLT devices must accommodate all four wavelengths. However, the ONT installed at the subscriber or the ONU provided to the dense subscriber shown in the right side of FIG. Initially, 10G / 1G will be applied first rather than 10G / 10G, and there will be a demand to use new ONT equipment as well as existing ONT by using one 1G upward. However, depending on the network conditions of the operators, the existing PON network may be maintained mainly for residential subscribers, and 10G / 10G PON may be introduced first for enterprise subscribers.

In addition, as shown in FIG. 3, CATV Overlay (RFOG) technology may be used in the same PON using a wavelength of 1550 nm, and an analog CATV return path of 1610 nm may be used. Is also defined. In addition, 1650 nm is defined as the wavelength for optical cable monitoring using an OTDR (Optical Time Domain Reflectometer). However, in the case of 1G GE-PON OLT, which is already installed and used, the use range of 1310nm wavelength is widely defined as 1260 ~ 1360nm, and overlaps with 10G upward 1270nm. However, in the case of G-PON, the optical transceiver specifications are more detailed, so that overlapping does not occur. So, in 10G class GE-PON, uplink traffic uses time division multiplexing (TDM) instead of wavelength division multiplexing. Although the same optical fiber is used, it is impossible to multiplex 1G / 10G upward independently, so it is multiplexed using the TDM method. Therefore, when 10G and 1G are mixed in the same PON, the performance may be dominant in the 1G class, even if the uplink is 10G speed, the more ONTs connected to the 1G class.

10G / 1G PON, 10G / 10G PON, 1G / 1G PON coexist in one optical fiber, but each ONT will use PON transceiver with optimized speed for its subscriber, so optical transceiver can be attached and detached according to the demand You will have to use the method.

Therefore, it is a problem of the present invention to solve the problems of the prior art as described above and to meet the needs.

The present invention accommodates both 10G-PON standards XG-PON1 (10G / 2.5G), XG-PON2 (10G / 10G) in one OLT system platform, and 10G / 1G-class 10G EPON or 10G according to user setting conditions It aims to provide 10G / 10G integrated ONT or integrated ONU device suitable for enterprise and integrated passive optical network MAC matching device for PON OLT system that can operate with 10G EPON.

That is, the present invention provides a plurality of gigabit Ethernet interfaces for configuring a subscriber premises network, and includes an Ethernet switching unit for converging packet flows inputted from them into a single flow, and a plurality of POTSs (for existing telephone services). It is equipped with a port for VoIP (Voice over IP) service that can be connected to a telephone), and has multiple wireless interfaces to provide a multi-input / output (MIMO) type Wi-Fi service, and additionally simultaneously to CATV subscribers. Integrated passive optical network matching device and a CATV RF receiver (Receiver) for processing CATV signal transmitted using a separate wavelength (1550nm) on the same optical line to provide distributed video stream service and using the same The purpose is to provide an integrated passive optical network termination device.

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 can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

The integrated passive optical network terminator of the present invention for achieving the above object is interlocked with a plurality of terminal apparatuses and a plurality of gigabit Ethernet interfaces, and the plurality of terminal apparatuses and PON (Passive Optical Network) MAC matching means or the plurality of terminal apparatuses. Ethernet switching means for switching packets between the terminal and the control means of the; VoIP digital signal processing means for processing a Voice over IP (VoIP) signal in association with a plurality of telephones and the PON MAC matching means; Wireless transmission / reception means for processing a radio signal in association with a plurality of radio terminal devices and a plurality of radio interfaces, and for transmitting and receiving a packet according to the control means and a wireless service; PDH frame processing means for interworking with a plurality of dedicated terminal apparatuses through a plurality of dedicated line interfaces, and for processing a PDH (Plesiochronous Digital Hierarchy) frame in association with the PON MAC matching means; Generate one or more of a packet from the Ethernet switching means, a VoIP signal from the VoIP digital signal processing means, a PDH signal from the PDH frame processing means, and a packet from the control means into a PON frame and transmit it to an optical transceiver; Said PON pulse matching means for performing reverse operation; The optical transceiver for photoelectric or all-optical conversion of transmission and reception signals between the PON pulse matching means and the PON manganese; And the control means for controlling the operation of the integrated passive optical network termination device.

In addition, the integrated passive optical network terminator, optical distribution means for converting the CATV optical signal received by using a separate wavelength through the same optical line for distributed video stream service; And CATV receiving means for recovering the CATV broadcast signal from the CATV electrical signal converted by the optical receiving means.

On the other hand, the integrated passive optical network matching device of the present invention for achieving the above object, receives the bitstream converted into an electrical signal from the optical transceiver to extract the clock, decoding and descrambling process for detecting the frame 10G PON reception processing unit; A 10G PON MAC frame receiver for analyzing the 10G PON frames received from the 10G PON receiving processor and performing PON MAC protocol processing and decryption processing; A downlink network processor for decomposing a packet in the PON frame from the 10G PON MAC frame receiver to perform packet reconstruction, protocol processing, and VLAN (Virtual LAN) analysis and store the packet in a downlink packet storage according to priority information; A 10G port Ethernet MAC processor for reading a packet from the downlink packet storage unit, scheduling the packet according to priority, and transferring the packet to the 10G processor; and conversely, recovering the packet received from the 10G processor into one 10G Ethernet stream; The 10G processor for converting the packet from the 10G port Ethernet MAC processor to the lower switch and conversely converting the packet from the lower switch to the 10G port Ethernet MAC processor for transferring the packet; An upstream network processor for decomposing a header of a packet from the 10G port Ethernet MAC processor, inquiring an address table, converting a packet header and a VLAN tag, and reconstructing a packet from an external device; An uplink packet storage unit for classifying and storing packets from the uplink network processing unit and performing scheduling according to priority; A 10G PON DBA control unit for performing a PON DBA control function; A 10G PON MAC frame transmitter for generating the PON frame according to the uplink rate information and transmitting the packet under the control of the 10G PON DBA controller; A 10G / 1G PON transmission processor for encoding and scrambling the PON frame from the 10G PON MAC frame transmitter to deliver the PON frame to the optical transceiver; And a CPU interface processor configured to provide a local bus and a control signal to control the integrated passive optical network matching device in an external process.

The integrated passive optical network matching device reads the packet from the downlink packet storage unit, schedules the packet according to priority, and delivers the packet to the 1G processor, and conversely, transmits the packet received from the 1G processor into one 1G Ethernet stream. A 1G port Ethernet MAC processor for restoring and forwarding the uplink network processor; And converting the packet from the 1G port Ethernet MAC processor to the lower switch, and conversely, converting the packet from the lower switch to the 1G port Ethernet MAC processor and transmitting the packet to the 1G port Ethernet MAC processor.

The integrated passive optical network matching device may further include a reference clock recovery unit for recovering a reference clock and a synchronous clock using a clock from the 10G PON receiving processing unit; And TOD information stored in a payload of a time of day (TOD) packet extracted by the 10G PON MAC frame receiver, a reference clock signal from the reference clock recovery unit, timing information from the 10G PON DBA controller, and an internal synchronous clock. The apparatus further includes a TOD detector for extracting time information and a network synchronization clock using signal and time information and time stamp information of the 10G PON MAC frame receiver.

The integrated passive optical network matching device is further configured to process a VoIP packet from the downlink packet storage unit and deliver the VoIP packet to a VoIP digital signal processor, and to transmit VoIP data from the VoIP digital signal processor to the uplink network processor. VoIP processing unit; And a TDM packet processor for processing and transmitting the TDM packet from the downlink packet storage to a PDH frame processor, and delivering the TDM packet from the PDH frame processor to the uplink network processor.

As the speed of traffic is accelerating, the transition to the next generation PON that accommodates 10G speed, 40Km long distance transmission, mobile backhaul, etc. is expected to begin. As expected, the need for a 10Gbps PON in the next few years is expected. By applying the 10G PON optical subscriber network termination device according to the present invention can meet this requirement.

In addition, digitalization of content and development of transmission technology accelerate digital convergence, breaking down the boundaries between services, and integrating services in voice / data, wired / wireless, broadcasting / communication, and the like. Among them, the integration of broadcasting and telecommunication services is inevitable, and telecommunication operators are pursuing convergence of operators, technology / network convergence, service convergence, and terminal convergence for convergence of broadcasting and telecommunication. In order to meet these demands, the present invention accommodates VoIP processing for voice services, connects existing telephones to provide homogeneous voice services, and enables CATV service subscribers to receive existing CATV services on the same PON line. It provides an interface and is provided to small businesses that still manage data networks using leased lines, so that existing leased line services can be used without a conversion device.

In addition, with the use of one integrated ONT device according to the present invention, service providers can manage subscribers' accesses and manage various value-added services, thereby greatly reducing operating costs.

In addition, according to the present invention, unlike the conventional technology using a terminal device or a service matching device for a separate service in terms of a subscriber, since it provides an integrated service in one platform, power consumption can be reduced, and a complicated connection between devices can be achieved. It can be simplified.

1 is a configuration diagram of an embodiment of a general PON network;
2 is a view for explaining the concept of a 10Gbps PON,
3 is an explanatory diagram for a light wavelength using PON;
4 is a configuration diagram of an embodiment of a wired / wireless integrated passive optical network termination device for voice, data, and video services according to the present invention;
5 is a configuration diagram of an embodiment of a 10G PON MAC matching device according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It can be easily carried out. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

And throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between. Also, when a component is referred to as " comprising "or" comprising ", it does not exclude other components unless specifically stated to the contrary .

First, in order to help the understanding of the present invention, the technical gist of the present invention is summarized as follows.

Most of the 1G-class ONTs used by operators are devices with one 10 / 100Base-TX port, and a plurality of terminals are connected by recombining separate routers in a subscriber's home. In the case of enterprises, most companies still manage data networks using dedicated lines, and internal networks are composed of separate L2 aggregation switches and L3 switches.

However, the present invention proposes an integrated ONT device and an integrated passive optical network matching device for use in SOHO and mid-sized companies as well as general residential subscribers. In addition, the present invention relates to an integrated ONU device suitable for the enterprise and an integrated passive optical network matching device for the same, which is equipped with a 10G-class passive optical subscriber network module suitable for the upcoming gigabit-class service. It provides 1G class interface to support upstream interface such as switches and more than 1G class speed.

In other words, the present invention provides a plurality of 10/100 / 1000base-TX ports for a general subscriber interface for future gigabit service. And it provides the L2 Ethernet switching unit that aggregates the packet flows input from them into a single flow, NAT to assign a private IP of the IPv4 method to a plurality of terminals of the subscriber line, to convert to a single public IP address for management (Network Address Translation) Allows you to manage lookup tables for processing. And concurrent dual band for video transmission using home wireless 2.4GHz band Wi-Fi (WiFi) that connects various home devices with the spread of smartphones and 5.8GHz band with relatively low noise environment. ). It also provides multiple ports of Voice-over-IP (VoIP) ports to provide traditional Public Switched Telephone Network (PSTN) voice services on the same platform, enabling the connection of older Plain Old Telephone Service (POTS) phones. In addition, a CATV RF receiver (Receiver) for processing the CATV signal transmitted using a separate wavelength 1550nm on the same optical line for CATV distributed video stream service.

4G (4th generation) wireless networks such as LTE (Long term Evolution), which are currently being introduced, reduce the size of a service cell and provide relatively wideband services. So, evolving from the existing 3G network to the 4G network, the entire network is being built as an IP network. Base station equipment is connected using relatively low-cost Ethernet technology and Carrier Ethernet or Packet Transfer Network (PTN) with OAM (Operation and Maintenance) capabilities of reliable transmission networks such as Synchronous Digital Hierarchy (SDH). have. However, the network investment is too high for 1: 1 connection of granular equipment such as femtocells. Therefore, it is possible to build a mobile backhaul network using a PON network. Currently, the PON subscriber network has been applied as an access network for high-speed Internet, but by providing a network synchronizer function and a network synchronizer distribution function in the PON network, and adding a function of transmitting time information such as time of day (TOD), Applicable for mobile backhaul applications. In addition, in order to accommodate leased line subscribers for TDMoIP (TDMoIP) service, a communication interface of PDH (Plesiochronous Digital Hierarchy) level such as E1 / T1 is provided, and Pseudo-Wire function is provided.

4 is a diagram illustrating an embodiment of a wired / wireless integrated passive optical network terminator for voice, data, and video services according to the present invention.

As shown in FIG. 4, the wired / wireless integrated passive optical network terminator for voice, data, and video services according to the present invention is interworked with a plurality of terminal devices and a plurality of gigabit Ethernet interfaces, and a plurality of terminal devices and a PON ( Passive Optical Network) MAC (Voice Matching Unit 30) or Ethernet Switching Unit (50) for switching packets between a plurality of terminal apparatuses and control unit 70, a plurality of telephones and PON MAC matching unit 30 in conjunction with VoIP (Voice) over IP) VoIP digital signal processor 60 for processing a signal, a plurality of wireless terminal devices and a plurality of wireless interfaces to process a wireless signal, and a Wi-Fi for transmitting and receiving a packet according to a wireless service with the control unit 70 (WiFi) Baseband processing unit 80, interworking with a plurality of dedicated terminal devices and a plurality of dedicated line interface, in conjunction with the PON MAC matching unit 30, PDH (Plesiochronous Digital Hierarchy) frame PDH frame processor 90 for processing, packets from Ethernet switching unit 50, VoIP signals from VoIP digital signal processor 60, PDH signals from PDH frame processor 90 and packets from control unit 70 Transmitting and receiving signals between the PON MAC matching unit 30, the PON MAC matching unit 30 and the PON network (OLT side) for generating any one or more of the PON frame to the optical transceiver 20, and performs the reverse operation The optical transceiver 20 for photoelectric or all-optical conversion, and a control unit 70 for controlling the overall operation of the integrated passive optical network termination device.

Looking at each component in detail with reference to Figure 4 as follows.

The present invention relates to an optical termination device (ONT) that can accommodate an existing 1G-class time-division passive optical subscriber network (PON) interface, and can accommodate a 10G-class passive optical subscriber network interface suitable for the future gigabit-class service. It provides a number of gigabit Ethernet interfaces (LAN1 to LAN4, 52 to 55) for the subscriber home network configuration, and collects the packet flows inputted from them into one flow to process PON MAC for PON frame type. Ethernet switching unit 50 for outputting to the matching unit 30, and the VoIP type service ports (64, 65) for connecting a plurality of POTS (existing telephones) for providing existing telephone service and VoIP input therefrom VoIP digital signal processor 60 for processing signals, and a plurality of wireless interfaces connected to the Wi-Fi baseband processor 80 Of providing a WiFi (WiFi) service of the input-output (MIMO) scheme. For the dedicated line interface, the ports 95 and 96 such as E1 / T1, the PDH frame processor 90 for processing the PDH frames inputted therefrom, and the PDH signal and the VoIP signals transmitted through the TDM bus are combined with each other. PON MAC matching unit 30 that varies the data according to the frame structure, the initial program for controlling all of the configuration blocks, and the flash memory 72 for storing the main information or configuration control information during operation and the operation program for A memory 71 and a control unit (CPU) 70 connected to them to perform all control functions. In addition, a CATV RF receiver 40 is further provided for processing CATV signals transmitted using a separate wavelength of 1550 nm on the same optical line to simultaneously provide distributed video stream service to CATV subscribers. Doing.

As the optical transceiver 20 connected to the upper end of the PON MAC matching unit 30 of FIG. 4, various optical transceivers are used according to requirements such as transmission speed, transmission distance and wavelength used, output strength and reception sensitivity in actual implementation. . Therefore, burst mode optical transceivers for PON should be used with small form-factor pluggable (SFP) type optical transceivers. In the embodiment of the present invention, an optical wavelength corresponding to 1G / 1G PON and a configuration applied to 10G / 10G PON will be described. As shown in FIG. 2, in the configuration of the ONT / ONU, the configuration of the down / upward speed may be variously configured such as 10G / 10G, 10G / 1G, 1G / 1G, 2.5G / 1G, and the like. As specified in the international standard, the wavelength shown in FIG. 3 is applied to multiplex up and down data by Wavelength Division Multiplexing (WDM).

Here, the 10G / 10G optical transceiver 20 converts the received optical signal into an electrical signal using a 1577nm wavelength for downgrading the 10G class to an electrical signal and delivers it to the PON MAC matching unit 30 (O / R). 23), O / T (Optical Transmitter, 22) for converting the electrical signal from the PON MAC matching unit 30 to an optical signal and transmitting 10G-class data to the OLT side using a 1270nm wavelength, the optical signal of each wavelength WDM element 21 for separating and multiplexing, and O / O which converts RF optical signals of CATV analog and digital channels transmitted from the network side into electric signals by using 1550 nm wavelength and transmits them to CATV RF receiver (40). R 24 is provided.

If a burst optical transceiver for 1G / 1G class PON is composed of O / T (22) using a 1310nm wavelength for the uplink signal, O / R (23) using a 1490nm wavelength for the downlink signal. In case of ONT / ONU, it is composed of independent optical transceivers according to the configuration of 10G / 10G, 10G / 1G, 1G / 1G. Here, each O / T receives a differential mode electrical signal and converts it into an optical signal, and a laser diode (LD) such as a distributed feedback laser diode (DFB-LD) and an LD driver element for controlling the driving thereof. O / R is a photo diode such as Avalanche Photo Diode (APD), Trans-Impedance Amplifier (TIA), PON Limiting Amplifier (LIA), etc. to convert the optical signal into an electrical signal. Is done.

In the O / R, the received intensity (RSSI) of the received optical signal is analogically detected and transformed into a voltage, which enables the detection of the received intensity of the optical signal transmitted from the OLT. The voltage is converted to A / D (analog to digital) and used as a refined value. If the received optical signal strength is less than or equal to a predetermined threshold, the LOS may be defined as a LOS (Loss of Signal) state, and a threshold for release thereof may be changed in the OLT. Under the control of the PON MAC matching unit 30, the O / T 22 utilizes a control signal such as a transmit enable signal TXEN in order to transmit data to a higher OLT in a time period in which the O / T 22 matches. . Under the control of the PON MAC matching unit 30, the O / T 22 measures the optical signal strength transmitted from the ONT to the OLT by using a time pulse or the like that measures an output signal strength (TSSI) or the like. On the OLT side, the bit error rate is measured and compared for a long time, and when the bit error increases and decreases the output signal strength over a predetermined threshold, the OTR side detects the time of exchange of the optical transceiver of the remote ONT. In addition, each transmit / receive power of the optical transceiver 20 may be controlled according to the transmit / receive control of the PON MAC matching unit 30. That is, under the control of the PON MAC matching unit 30, the power of the transmitter and receiver of the optical transceiver 20 is separated and controlled to operate the ONT in the auto power save mode during the idle period, and to remotely control the ONT power from the OLT. To make it possible. So in case of ONT which is not used, power can be controlled remotely from OLT, which can significantly reduce power consumption during idle time.

The PON MAC matching unit 30 performs protocol processing for 10G EPON and XG-PON, such as frame processing for the PON method, extracts Ethernet packets in the PON frame, and then exchanges the Ethernet switching unit 50 for the destination. To pass. However, 10G class data is received, but the lower switch interface is 1G class, so it is combined by GMII. If it is combined with 10G class switch, it can be connected by XAUI method. However, in the embodiment of the present invention, it will be described assuming that the connection in reality gigabit. Therefore, it is possible to connect GMGM or RGMII or serially changed SGMII to reduce the number of signal lines. When the Ethernet switching unit 50 performs the exchange according to the destination of each packet, and then transfers it to each corresponding interface, the Ethernet switching unit 50 passes through the transceiver 51 of the physical layer to each LAN port 52 to 55.

At this time, when the Ethernet switching unit 50 receives each Ethernet frame, the headers of the packets are analyzed to determine service priorities according to Class of Service (CoS), Type of Service (ToS), QoS (Quality of Service), VLAN ( Virtual LAN) is processed and L2 layer switching is handled according to the requirements. When only the bridge function and aggregation function of the L2 layer are required, the packet exchange function is performed according to the MAC (Media Access Control) destination address by the L2 header.When the L3 routing is required, the IP header is viewed and the public IP is converted into a private IP. It performs NAT function and L3 packet exchange function. The exchanged packets are forwarded to the port for each destination.

The Ethernet switching unit 50 is connected to the control unit 70 in an Ethernet manner in order to transfer a portion of the packet to be processed by a program in a process such as operation management of the device. Therefore, it is possible to interface with Gigabit GMII, RGMII, SGMII, etc., and combine with MII for connection at 100Mbps. Through this, the packet to be processed by the controller 70 is transferred from the Ethernet switching unit 50 to the controller 70. In addition, the Ethernet switching unit 50 and the control unit 70 are connected to the local control bus in order to access the resist level of the Ethernet switching unit 50 in detail. Initially, the PON method is specified according to the configuration of the device, and the management program suitable for this PON method is stored in the flash memory 72 at the time of production, and the control unit (CPU) 70 reads the management program at the time of booting and stores the memory ( DDR3 Memory, 71, and by the program, the control unit 70 controls the PON MAC matching unit 30, the Ethernet switching unit 50, and other Wi-Fi baseband processing units 80 through the local bus. Perform initialization and control Although not shown in the drawings, a console port is provided through an RS232c drive chip for an operation console port that can be directly connected to an optical termination device during production, failure, or emergency.

In addition, the PON MAC matching unit 50 transmits the OAM packet from the OLT as an OAM packet or an OMCI (ONU Management and Control Interface) packet in the case of a GPON to transmit a network synchronization signal for application to a small base station device or a femtocell of a mobile backhaul. of Day and 1PPS (Pulse per Second) information is extracted and transmitted to a Gigabit Ethernet physical layer processor (GbE PHY) 51 having an IEEE 1588v2 frame processing or function. The synchronous clock signal generated from the Ethernet switching unit 50, the VoIP digital signal processor 60, and the PDH frame processor 90, which require the synchronous clock through a phase-locked loop (PLL) 91, are used. To pass. The PON MAC matching unit 30 receives the packet when its ONU_ID (ONU identifier) or LLID (Logical Link Identifier) is matched among the packets transmitted from the network side, and collects the VoIP packets contained therein. The digital signal processor 60 transmits the E1 / T1 packets to the PDH frame processor 90 through the TDM bus.

VoIP-related data is processed by the VoIP digital signal processor 60 according to the coding scheme appropriate for the service, and then the corresponding port is connected through a subscriber line interface circuit (SLIC) and an electrostatic discharge (ESD) protection device (62, 63). Is passed to (64, 65). Although the VoIP digital signal processor 60 describes two telephone ports in the embodiment of FIG. 4, it handles VoIP functions for multiple voice channels. That is, the VoIP digital signal processor 60 can process a plurality of simultaneous voice calls, or analyze and process Dual-Tone Multi-Frequency (DTMF) dialing tone, DTMF number recognition, call processing tone, hook on / off, etc. Detect and process, and perform loop echo cancellation. In addition, the VoIP digital signal processor 60 performs a voice codec (G.711, 723, 726, 727, 729, etc.) to encode a voice signal or interpret a packet transmitted in reverse to decode the voice signal into a voice signal. .

In addition, the PON MAC matching unit 50 provides ESD (93, 94) and a LIU (Line Interface Unit, 92) for the corresponding speed in order to converge a dedicated line service subscriber of a PDH level such as T1 / E1 into a packet network without a separate device. When the transmission frame is input through each corresponding PDH frame processor 90 after passing, the Packet Emulation Service over Packet (CESoP) and Structured Agnostic (SAToP) for packetizing the TDM data according to the transmission method and the packet in each transmission frame. Packetization is performed according to various standards such as TDM over Packet) and PWE3 (Pseudo-Wire ver. 3).

Among the terminals used in the subscriber's home network, there are various smart devices such as laptops, smart phones, and pads. A Wi-Fi interface is provided for network access of these various terminals. In the embodiment of the present invention, by providing a multiple input and output (MIMO) method, it is possible to provide two wireless streams when using IEEE 802.11b / g / n, it is possible to provide up to 300Mbps performance. Alternatively, 2.4 GHz IEEE 802.11b / g / n may be applied for services such as general Internet data, and 5.8 GHz band may be used for video transmission and reception, thereby providing an error-free environment. In this case, a plurality of wireless LAN ports are provided for simultaneous processing. After switching the RF signal input through the wireless antenna 85 to the low noise amplifier (LNA, 83) through the RF switch 84, and improves the reception sensitivity in the low noise amplifier (LNA, 83), the Wi-Fi base The band processor 80 processes the WLAN MAC function. Thus, the recovered packets are transferred to the controller 70 through a Peripheral Component Interconnect Express (PCIe) interface, the controller 70 performs NAT processing, and then delivers the recovered packets to the Ethernet switching unit 50 through the switch interface GMII6. The switching unit 50 transmits to the network side. On the contrary, among the downlink data transmitted from the network side, packets destined for the wireless terminal are exchanged by the Ethernet switching unit 50 and transferred to the control unit 70, and the packet is transmitted through the control unit 70. In operation 80, the WLAN MAC frame is processed and transmitted to the antenna 85 through a band pass filter (BPF) 81 and a PA (Power Amplifier) 82 for increasing the output and an RF switch 84. do.

As described above, the PON MAC is matched to receive the signal converted into an electrical signal in the optical transceiver 20 to extract the PON downlink frame, or to receive the aggregated packets from the Ethernet switching unit 50 to generate the uplink PON frame. The detailed configuration of the unit 30 will be described later in detail with reference to FIG. 5.

5 is a configuration diagram of an embodiment of a 10G PON MAC matching device according to the present invention.

As shown in FIG. 5, the 10G-class PON MAC-matching device (10G-class PON MAC-matching unit 30) according to the present invention receives the bitstream converted into an electrical signal from the optical transceiver 20 and extracts a clock. To analyze the 10G PON frame received from the 10G PON receiving processor 101 and the 10G PON receiving processor 101 for decoding the frame by decoding and descrambling to perform PON MAC protocol processing and decryption processing. The 10G PON MAC frame receiving unit 103 and the 10G PON MAC frame receiving unit 103 decompose the packet in the PON frame and perform packet reconstruction, protocol processing, and VLAN (Virtual LAN) analysis to determine the downlink packet buffer according to the priority information. 108, the packet is read from the downlink packet processor 108 and the downlink packet buffer 108 for storage in the priorities, and is scheduled according to the priority to the 10G processor 112, and vice versa from the 10G processor 112. The 10G port Ethernet MAC processor 110 and 10G port Ethernet MAC processor 110 for recovering the received packet to one 10G Ethernet stream are converted and transferred to the lower switch, and conversely, the packet from the lower switch is transferred. Decomposes the headers of the packets from the 10G processing unit 112 and the 10G port Ethernet MAC processing unit 110 for transmission to the 10G port Ethernet MAC processing unit 110 to query the address table 119 for packet headers and VLAN tags. An uplink packet processor 109 for converting and reconstructing a packet from an external device, an uplink packet buffer 107 for classifying and storing packets from the uplink network processor 109, and performing scheduling according to priority; PON DBA control unit 104 for performing the PON DBA (Dynamic Bandwidth Allocation) control function, the packet of the uplink packet buffer 107 into a PON frame according to the uplink rate information The 10G PON MAC frame transmitter 105 and the PON frame from the 10G PON MAC frame transmitter 105 for generation and transfer under the control of the PON DBA controller 104 are subjected to encoding and scrambling to the optical transceiver 20. 10G / 1G PON transmission processing unit 102, and a CPU interface processing unit 114 for providing a local bus and control signals so that each component can be controlled by an external process.

Looking at each component in detail with reference to Figure 5 as follows.

5 shows a detailed configuration of a 10G-class PON MAC matching unit 30 that performs 10G / 10G-class 10G EPON and PG MAC functions for XG-PON. The PON MAC matching unit 30 drives in accordance with the PON method that satisfies each standard according to the drive program of the control process at the time of initialization. It also satisfies EPON standards such as IEEE 302.ah and 802.3av and G-PON standards such as ITU-T G.984 and G.987, simultaneously with 10G / 10G, 10G / 1G, 10G / 2.5G and so on. In actual operation, it is not necessary to support all speeds during operation, but when installing, it supports the possible speeds when specifying PON method.

The optical transceiver 20 receives 1G class and 10G class PON downlink optical signals on the optical paths 9 and 10, converts them into electrical signals, and transmits them to the MAC chip, and transmits data (electrical signals) in the upward direction. Receives and converts it into an optical signal and sends it to the OLT side. In an embodiment of the present invention, it is preferable to use an integrated optical transceiver capable of receiving downlink data at 10G level and transmitting 1G, 2.5G, and 10G signals upward.

The 10G-class PON MAC chip shown in FIG. 5 (10G-class PON MAC matching device) receives a 10.3125 Gbps bitstream converted into an electrical signal from the optical transceiver 20, extracts a clock, and converts the clock into a reference clock recovery unit ( 115), FEC decoding (decoding), descrambling, 64B / 66B decoding process according to the presence or absence of the Forward Error Correction (FEC) method to find the frame without error and deliver to the 10G PON MAC frame receiving unit 103 10G PON RX Deserializer (10G) and 10G PON frame received from 10G PON Receive Processing Unit (101) to process related PON MAC protocols and decrypt according to the specification of AES (Advanced Encryption Standard) encryption After the processing, the 10G PON MAC frame receiving unit 103 is transmitted to the downstream network processing unit 106 for packet analysis processing. Here, the 10G PON receiving processing unit 101 drives a 10G-class deserializer to convert a serial signal into a parallel signal and output the parallel signal. The reference clock recovery unit 115 recovers the reference clock and the synchronous clock by using the clock from the 10G PON receiving processing unit 101.

After that, the downlink network processing unit 106 has a synchronous FIFO (First In First Out) inside to overcome the speed difference between the switch interfaces or temporarily store the packet for delivery to the control unit (CPU). Subsequently, the downlink network processing unit 106 first reads a packet from the FIFO, parses the packet, extracts detailed information, extracts or deletes classification and unnecessary information according to priorities such as CoS and ToS, and Perform packet reconstruction. The downlink network processing unit 106 processes L2 / L3 / L4 protocols that are already defined or standardized protocols, address resolution protocol (ARP), IPv4, IPv6, transmission control protocol (TCP), and user datagram (UDP). Protocol processing such as Protocol is performed. The downlink network processing unit 106 performs L2 level bridge functions such as interpretation of VLANs and modification of related VLAN tags with reference to the separate address table 119 and the VLAN table (not shown). QoS, service priority, rate limit, and the like are reclassified according to the analyzed classification information and stored in the downlink packet buffer 108 to store packets in the classified buffer.

The 10G port Ethernet MAC processor 110 and the 1G port Ethernet MAC processor 111 are not driven at the same time, and are selected according to ONT or ONU to be implemented and its interface specifications. For example, if the subscriber interface is an ONU device such as a Gigabit Ethernet switch, it is more likely to be connected to the 10G interface, and in the case of the terminator in the home, it is preferable to connect to the 1G interface.

Here, the 1G port Ethernet MAC processing unit 111 inquires the storage position and size information of the packet data stored for each classification in the downlink packet buffer 108, reads the actual packets from the downlink packet buffer 108, and according to their priority. The 1G processor 113 transmits the data to the 1G processor 113 in order to schedule and deliver the same at the speed of 1G. Conversely, the 1G processing unit 113 receives and parallelizes packets exchanged in a switch and aggregated into one flow in an SGMII format, and forwards these packets upward through an 1G port Ethernet MAC processing unit 111. 109).

The 10G port Ethernet MAC processor 110 inquires the storage location and size information of the packet data stored for each classification in the downlink packet buffer 108, reads the actual packets from the downlink packet buffer 108, and schedules them according to their priority. In order to transmit at a speed of 10G, it is transmitted to the 10G processing unit 112, and the 10G processing unit 112 converts the signals into four lanes driving at 3.125 Gbps according to the interface specification and then switches the lower switch. The differential mode signaling method is used. Conversely, the 10G processing unit 112 receives and parallelizes packets exchanged in a switch and aggregated into one flow in the XAUI format, and forwards these packets upward through the 10G port Ethernet MAC processing unit 110. 109). That is, the 10G processor 112 constructs a normal packet from 3.125Gbps data of four lanes by receiving data in four lanes upward. The 10G port Ethernet MAC processor 110 recovers the received packets to one 10G Ethernet stream and then transfers the received packets to the uplink network processor 109.

The VoIP processing unit 117 processes the VoIP packet from the downlink packet buffer 108 and delivers the VoIP packet to the VoIP digital signal processor 60, and transmits the VoIP data from the VoIP digital signal processor 60 to the uplink network processing unit 109. To pass. The TDM packet processor 118 processes the TDM packet from the downlink packet buffer 108 to the PDH frame processor 90, and transmits the TDM packet from the PDH frame processor 90 to the uplink network processor 109. do.

The upstream network processing unit 109 parses the header of the input packet, analyzes it, looks up the address information in the header information, and processes the header conversion, or performs an address table (VLAN tag conversion, deletion, insertion, etc.). Address Table 119) and reprocess the packet to be delivered to the network. Thereafter, the uplink network processor 109 classifies the packet according to the information of the packet header, and stores the packet in the uplink packet buffer 107 according to the classification information, and stores the relevant storage location information and data size information in a data location table. Table, not shown in the drawing). In this case, when there is a packet to be sent upstream (network side) from the external control unit (CPU), the uplink network processing unit 109 configures a complete packet to be received and transmitted through the internal buffer, and stores it in the priority buffer to be transmitted according to the priority. It performs the function.

The uplink packet buffer 107 performs a function of scheduling a packet according to the priority of each classified packet and transmitting it upward when there is data to be transmitted upward. At this time, queue scheduling is performed according to each class level according to each QoS priority, and various queue services such as SP (Strict Priority) or WRR (Weighted round robin) are performed. Of course, the 10G PON DBA (Dynamic Bandwidth Allocation) control unit 104 controls the timing to be delivered, the timing of delivery of other OAM packets, and PON multiplexing in a time division manner upward.

According to the specification of the network-side PON interface, the 10G PON MAC frame transmitter 105 distinguishes the ONT in the 10G PON (or the ONT in the 1G PON) according to the uplink speed information set at the time of device initialization. Performs transmission PON uplink frame editing, encryption or bypass depending on the AES 128 encryption application option, and the processed packets are controlled by the 10G PON DBA controller 104. Receives and transmits to the 10G / 1G transmission processing unit 102 for delivery to the network side. The 10G PON MAC frame transmitter 105 generates a packet to be transmitted as an uplink PON frame suitable for 10G speed and stores it in a sync FIFO (not shown). Creates an uplink PON frame that fits and stores it in the sync FIFO. Sync FIFOs exist to buffer the difference between the upper processing rate and the actual lower delivery rate.

In addition, the 10G / 1G PON transmission processor 102 drives the 1G-class parallel-to-serial converter or the 10G-class parallel-to-serial converter to transmit the serialized electrical signal to the optical transceiver 20. If the PON upstream interface is 10G class, 64B / 66B coding is performed in the internal 10G transmission serializer, followed by scrambling processing, RS (255, 223) FEC encoding, and serialized data is XFI (10). It transmits to the optical transceiver 20 by the Gigabit Small Form Factor Pluggable transceiver method to convert the optical signal to the OLT side, and if the PON upstream interface is 1G class, 8B / in the 1G transmission serializer therein. After 10B coding, after scrambling, RS (255, 239) FEC encoding, serialized data is transferred to the optical transceiver 20 by SFI (1 Gigabit Small Form Factor Pluggable transceiver) method and converted into an optical signal. To be passed to the OLT side.

The 10G PON DBA control unit 104 and the 10G PON MAC frame reception and transmission processing units 103 and 105 organically perform a control operation to process the PON related protocol. In the case of the GE-PON method, a Point-to-Multipoint (P2MP) PON network is controlled using the Multi-Point Control Protocol (MPCP). In OLT, to distinguish several ONTs in one PON, each ONT is given a different identifier (ID) called Logical Link Identification (LLID). MPCP allows the ONT to be assigned an LLID when it connects to the PON and to continue to communicate over the PON. Since PDM uses TDM, time synchronization between OLT and ONT is important. Therefore, OLT transmits timestamp that informs its time to every frame sent to ONT, and ONT checks the timestamp in the received frame and sets its own time. Synchronize. The timing reference 10G PON DBA control unit 104 receives and manages the frame through the 10G PON MAC frame receiving unit 103. In case of GPON, ONU_ID is allocated and managed, and 125usec synchronized frame is used for time synchronization with each other. Thus, the 10G PON DBA control unit 104 also manages time synchronization of sync frames in the GPON.

The GPON protocol layer exists below the data link layer, and converts services of various data link layers into GPON frames and transmits them. The GPON protocol is composed of a physical layer and a transmission convergence layer (TC). The serial / parallel / parallel conversion and burst reception functions and the 럭 clock extraction functions performed by the physical layer are performed by the 10G PON reception and 10G / 1G PON transmission processing units 101 and 102. The transmission convergence layer is composed of a framing sub-layer and a transmission convergence matching layer (TC Adaptation sub-layer). In the frame layer, the GPON transmission converges every 125usec cycles using the frames transmitted from the ATM (GPON Encapsulation Method) and the GEM (GPON Encapsulation Method) transmission convergence matching device, the PLOAM (Physical Layer OAM) information, the DBA information, and the synchronization information. (GTC, GPON TC) Multiplexes or demultiplexes a frame. The transport convergence matching layer recognizes VPI / Virtual Path Identifier / Virtual Channel identifier (VPI / VCI) in the case of “ATM” service and “Port-ID” in case of the GEM service, and performs the function of filtering and connecting to the corresponding upper service. In addition, time slot allocation for uplink transmission control of ONUs and ONU management functions are performed. ATM clients connect to ATM transport convergence matching devices via VPI / VCI, and GEM clients that provide services such as IP, Ethernet, or TDM connect to GEM transmission convergence devices through port-ID. PLOAM (Physical layer OAM) transmits information such as management of PON physical layer and operation management of frame layer layer and transmits through 13 bytes of PLOAM area. OMCI performs statistical information and state management of ONUs. In GPON network, ONT is registered and activated in two ways, Static / Dynamic, by using PLAOM between OLT and ONT. Among them, in the dynamic method, ONU first adjusts the transmission optical power level based on the OLT request. The OLT finds the serial numbers of the ONUs connected to its PON network. OLT assigns the ONU ID to the serial number of the found ONU. OLT measures the arrival time of uplink transmission from ONU. The OLT sends an equalization delay (EqD) to the ONU. The ONU applies the transmission time passed from the OLT. In the OLT, synchronization information (visual information) is included in a header in a packet transmitted downward and transmitted. Accordingly, all ONTs transmit information in a frame synchronized with 125usec. OLT manages the bandwidth for packet delivery of each ONT. Managing bandwidth according to the amount of data needed for ONT is called DBA (Dynamic Bandwidth Allocation), and the DBA algorithm uses an algorithm that dynamically allocates bandwidth to subscribers according to subscriber demand level for efficient bandwidth use. . DBA algorithm operates by requesting bandwidth allocation in ONT (U) and appropriately allocating bandwidth in OLT, and requesting bandwidth allocation using Dynamic Bandwidth Report-upstream (DBRu) among upstream frames. Bandwidth is allocated in CONT (Transmission Container) unit. The ONU transmits its upstream queue information to the OLT, and the OLT allocates an upstream time slot based on the information. When ONU transmits queue information when transmitting upstream, OLT performs scheduling to efficiently allocate DBA for each T-CONT type while continuously updating the information. In addition, NSR-DBA (non status report method) uses OLT itself to analyze the upstream traffic (Upstream Traffic) to allocate bandwidth.

In order to utilize ONT / ONU as a mobile backhaul device, a function of receiving a network synchronous clock signal used in a higher network and distributing clock and time information synchronized therewith to a lower terminal device is required. To this end, the 10G PON MAC frame receiving unit 103 receives the PLOAM packet of the GE-PON from the OLT device or receives the OMCI information of the G-PON through the GEM channel, extracts the corresponding TOD packet, and delivers the TOD packet to the TOD detection unit 116. . Then, the TOD detector 116 transmits the TOD information stored in the payload of the TOD packet, the reference clock signal from the reference clock recovery unit 115, the timing information from the 10G PON DBA control unit 104, and the internal synchronization clock signal. By using the time information, time stamp information of the 10G PON MAC frame receiving unit 103 and the like, the correct time information and the network synchronization clock correcting the displacement of the transmission time of the PON network are extracted. Directly processed 1PPS (Pulse Per Second) and TOD (Time of Date) signals are output to the Gigabit Ethernet physical layer processor and the transceiver 51 to the transceiver of the physical layer having IEEE P1588 synchronization function at the bottom of the switch. By transmitting, it is possible to deliver the synchronization packet to the terminal devices of the subscriber line.

The CPU interface processor (control and status register) 114 provides a local bus and a control signal to control each of the above components in an external process.

As described above, although the present invention has been described with reference to the limited embodiments and the drawings, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains should understand the present invention. Various substitutions, modifications, and changes can be made without departing from the spirit.

Therefore, the scope of the present invention should not be construed as being limited to the embodiments described, but should be determined by the scope of the appended claims, as well as the appended claims.

20: optical transceiver 30: PON MAC matching unit
40: CATV RF receiver 50: Ethernet switching unit
60: VoIP digital signal processor 70: control unit
80: WiFi baseband processor
90: PDH Frame Processor

Claims (19)

In an integrated passive optical network termination device,
Ethernet switching means for interworking with a plurality of terminal apparatuses through a plurality of gigabit Ethernet interfaces and for switching packets between the plurality of terminal apparatuses and a Passive Optical Network (PON) MAC matching unit or the plurality of terminal apparatuses and control means;
VoIP digital signal processing means for processing a Voice over IP (VoIP) signal in association with a plurality of telephones and the PON MAC matching means;
Wireless transmission / reception means for processing a radio signal in association with a plurality of radio terminal devices and a plurality of radio interfaces, and for transmitting and receiving a packet according to the control means and a wireless service;
PDH frame processing means for interworking with a plurality of dedicated terminal apparatuses through a plurality of dedicated line interfaces, and for processing a PDH (Plesiochronous Digital Hierarchy) frame in association with the PON MAC matching means;
Generate one or more of a packet from the Ethernet switching means, a VoIP signal from the VoIP digital signal processing means, a PDH signal from the PDH frame processing means, and a packet from the control means into a PON frame and transmit it to an optical transceiver; Said PON pulse matching means for performing reverse operation;
The optical transceiver for photoelectric or all-optical conversion of transmission and reception signals between the PON pulse matching means and the PON manganese; And
The control means for controlling the operation of the integrated passive optical network termination device
Integrated passive optical network termination device comprising a.
The method of claim 1,
Light receiving means for converting the CATV optical signal received using a separate wavelength through the same optical line for the distributed video stream service to the CATV electrical signal; And
CATV receiving means for recovering the CATV broadcast signal from the CATV electrical signal converted by the optical receiving means
Integrated passive optical network termination device further comprising.
The method of claim 1,
The PON pulse matching means,
Integrated passive optical network termination device for recovering and distributing time information and synchronization clock information in a PON frame received from a PON line matching means (OLT) for application to a mobile backhaul device or a network device requiring a synchronization clock.
3. The method according to claim 1 or 2,
The PON pulse matching means,
A 10G PON receiving processor for detecting a frame by receiving a bitstream converted from the optical transceiver into an electrical signal, extracting a clock, and performing decoding and descrambling;
A 10G PON MAC frame receiver for analyzing the 10G PON frames received from the 10G PON receiving processor and performing PON MAC protocol processing and decryption processing;
A downlink network processor for decomposing a packet in the PON frame from the 10G PON MAC frame receiver to perform packet reconstruction, protocol processing, and VLAN (Virtual LAN) analysis and store the packet in a downlink packet storage according to priority information;
A 10G port Ethernet MAC processor for reading a packet from the downlink packet storage unit, scheduling the packet according to priority, and transferring the packet to the 10G processor; and conversely, recovering the packet received from the 10G processor into one 10G Ethernet stream;
The 10G processing unit for converting a packet from the 10G port Ethernet MAC processing unit and transferring the packet from the 10G port Ethernet MAC processing unit and conversely converting a packet from the Ethernet switching unit to the 10G port Ethernet MAC processing unit;
A VoIP processing unit for processing the VoIP packet from the downlink packet storage unit and delivering the VoIP packet to the VoIP digital signal processing unit, and transferring the VoIP data from the VoIP digital signal processing unit to an uplink network processing unit;
A TDM packet processing unit for processing the TDM packet from the downlink packet storage unit and delivering the TDM packet to the PDH frame processing unit, and delivering the TDM packet from the PDH frame processing unit to the uplink network processing unit;
The uplink network for decomposing the header of the packet from the 10G port Ethernet MAC processor to query the address table to convert the packet header and the VLAN tag, and to reconstruct the packet from the control means, the VoIP processor and the TDM packet processor. Processing unit;
An uplink packet storage unit for classifying and storing packets from the uplink network processing unit and performing scheduling according to priority;
A 10G PON DBA control unit for performing a PON DBA control function;
A 10G PON MAC frame transmitter for generating the PON frame according to the uplink rate information and transmitting the packet under the control of the 10G PON DBA controller;
A 10G / 1G PON transmission processor for encoding and scrambling the PON frame from the 10G PON MAC frame transmitter to deliver the PON frame to the optical transceiver; And
A CPU interface processor for providing a local bus and a control signal to control the PON pulse matching means from the control means
Integrated passive optical network termination device comprising a.
5. The method of claim 4,
1G port for reading the packet from the downlink packet storage unit and scheduling the packet according to the priority, and forwarding it to the 1G processor, and conversely, recovering the packet received from the 1G processor to one 1G Ethernet stream and delivering the packet to the uplink network processor. Ethernet MAC processing unit; And
The 1G processing unit for converting the packet from the 1G port Ethernet MAC processing unit and forwarding it to the Ethernet switching means, and conversely converts the packet from the Ethernet switching means and forwards it to the 1G port Ethernet MAC processing unit.
Integrated passive optical network termination device further comprising.
5. The method of claim 4,
A reference clock recovery unit for recovering a reference clock and a synchronous clock by using the clock from the 10G PON receiving processor; And
TOD information stored in a payload of a time of day (TOD) packet extracted by the 10G PON MAC frame receiver, a reference clock signal from the reference clock recovery unit, timing information from the 10G PON DBA controller, and an internal synchronous clock signal. And a TOD detector for extracting time information and a network synchronization clock using time information and time stamp information of the 10G PON MAC frame receiver.
Integrated passive optical network termination device further comprising.
5. The method of claim 4,
The 10G PON Mac frame transmitter,
An integrated passive optical network terminator that generates a corresponding PON frame by distinguishing a 10G PON frame or a 1G PON frame according to the uplink speed information set at initialization.
5. The method of claim 4,
The 10G PON DBA control unit,
Integrated passive optical network termination device to check the time stamp (frame) in the frame received through the 10G PON MAC frame receiver to manage the timing criteria.
4. The method according to any one of claims 1 to 3,
The optical transceiver comprising:
Integrated passive optical network terminator, an SFP (Small Form-factor Pluggable) type optical transceiver that can be detachably mounted according to the requirements of transmission speed, transmission distance and wavelength used, output strength and reception sensitivity. 4. The method according to any one of claims 1 to 3,
The optical transceiver comprising:
The integrated passive optical network terminator of claim 1, wherein the received intensity (RSSI) of the received optical signal is detected by analog and converted into digital, and when the converted received intensity is less than or equal to a threshold, the signal is set to a Loss of Signal (LOS) state.
4. The method according to any one of claims 1 to 3,
The wireless transmission and reception means,
Integrated passive optical network termination device that provides a Wi-Fi (WiFi) interface of the 2.4GHz band and a Wi-Fi (WiFi) interface of the 5.8GHz band for connecting the plurality of wireless terminal devices to a wireless network.
4. The method according to any one of claims 1 to 3,
And each power source of the optical transceiver is controlled according to the control of the PON pulse matching means.
4. The method according to any one of claims 1 to 3,
The integrated passive optical network termination device,
Integrated passive optical network terminator comprising any one or more of 10G / 10G, 10G / 1G, 1G / 1G, 2.5G / 1G down / upward speed.
In the integrated passive optical network matching device,
A 10G PON receiving processing unit for receiving a bitstream converted into an electrical signal from an optical transceiver, extracting a clock, performing decoding and descrambling, and detecting a frame;
A 10G PON MAC frame receiver for analyzing the 10G PON frames received from the 10G PON receiving processor and performing PON MAC protocol processing and decryption processing;
A downlink network processor for decomposing a packet in the PON frame from the 10G PON MAC frame receiver to perform packet reconstruction, protocol processing, and VLAN (Virtual LAN) analysis and store the packet in a downlink packet storage according to priority information;
A 10G port Ethernet MAC processor for reading a packet from the downlink packet storage unit, scheduling the packet according to priority, and transferring the packet to the 10G processor; and conversely, recovering the packet received from the 10G processor into one 10G Ethernet stream;
The 10G processor for converting the packet from the 10G port Ethernet MAC processor to the lower switch and conversely converting the packet from the lower switch to the 10G port Ethernet MAC processor for transferring the packet;
An upstream network processor for decomposing a header of a packet from the 10G port Ethernet MAC processor, inquiring an address table, converting a packet header and a VLAN tag, and reconstructing a packet from an external device;
An uplink packet storage unit for classifying and storing packets from the uplink network processing unit and performing scheduling according to priority;
A 10G PON DBA control unit for performing a PON DBA control function;
A 10G PON MAC frame transmitter for generating the PON frame according to the uplink rate information and transmitting the packet under the control of the 10G PON DBA controller;
A 10G / 1G PON transmission processor for encoding and scrambling the PON frame from the 10G PON MAC frame transmitter to deliver the PON frame to the optical transceiver; And
CPU interface processing unit for providing a local bus and control signals to control the integrated passive optical network matching device in an external process
Integrated passive optical network MAC matching device comprising a.
The method of claim 14,
1G port for reading the packet from the downlink packet storage unit and scheduling the packet according to the priority, and forwarding it to the 1G processor, and conversely, recovering the packet received from the 1G processor to one 1G Ethernet stream and delivering the packet to the uplink network processor. Ethernet MAC processing unit; And
The 1G processing unit for converting the packet from the 1G port Ethernet MAC processing unit and forwarding the packet to the lower switch, and conversely converts the packet from the lower switch to the 1G port Ethernet MAC processing unit.
Integrated passive optical network matching device including a more.
16. The method according to claim 14 or 15,
A reference clock recovery unit for recovering a reference clock and a synchronous clock by using the clock from the 10G PON receiving processor; And
TOD information stored in the payload of the TOD packet extracted by the 10G PON MAC frame receiver, a reference clock signal from the reference clock recovery unit, timing information from the 10G PON DBA controller, internal synchronization clock signal and time information, and TOD detection unit for extracting time information and network synchronization clock using time stamp information of the 10G PON MAC frame receiver
Integrated passive optical network matching device including a more.
16. The method according to claim 14 or 15,
A VoIP processing unit for processing the VoIP packet from the downlink packet storage unit and delivering the VoIP packet to the VoIP digital signal processor, and for transmitting the VoIP data from the VoIP digital signal processor to the uplink network processing unit; And
TDM packet processing unit for processing and transmitting the TDM packet from the downlink packet storage unit to the PDH frame processor, and delivers the TDM packet from the PDH frame processor to the uplink network processing unit.
Integrated passive optical network matching device including a more.
16. The method according to claim 14 or 15,
The 10G PON Mac frame transmitter,
An integrated passive optical network matching device, which generates a corresponding PON frame by classifying whether it is a 10G PON frame or a 1G PON frame according to the uplink speed information set at initialization.
16. The method according to claim 14 or 15,
The 10G PON DBA control unit,
Integrated passive optical network matching device for managing the timing criteria by checking a timestamp (frame) in the frame received through the 10G PON MAC frame receiver.

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