CN107465540B - GPON remote system, management method and storage medium - Google Patents
GPON remote system, management method and storage medium Download PDFInfo
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- CN107465540B CN107465540B CN201710619279.5A CN201710619279A CN107465540B CN 107465540 B CN107465540 B CN 107465540B CN 201710619279 A CN201710619279 A CN 201710619279A CN 107465540 B CN107465540 B CN 107465540B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0797—Monitoring line amplifier or line repeater equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
- H04B10/2933—Signal power control considering the whole optical path
- H04B10/2939—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/04—Network management architectures or arrangements
- H04L41/046—Network management architectures or arrangements comprising network management agents or mobile agents therefor
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Abstract
The invention discloses a GPON remote system, a management method and a storage medium, relating to the technical field of passive optical network transmission.
Description
Technical Field
The invention relates to the technical field of passive optical network transmission, in particular to a GPON remote system, a management method and a storage medium.
Background
The GPON (Gigabit-CapablePON) technology is a latest generation broadband passive optical integrated access standard based on ITU-t g.984.x standard, has numerous advantages of high bandwidth, high efficiency, large coverage area, rich user interfaces and the like, and is considered as an ideal technology for realizing broadband and comprehensive transformation of access network services by most operators. The basic structure of the device based on the GPON technology is composed of an OLT (optical line terminal) at the local side, an ONT/ONU (optical network terminal or optical network unit) at the user side, an ODN (optical distribution network) composed of a single-mode fiber (SMfiber) and a passive optical Splitter (Splitter), and a network management system. The current GPON standard defines the maximum logical distance supported as: 60km, the supported maximum physical distance is: 20km, the supported maximum distance difference is: 20km and a splitting ratio of typically 1: 64.
In the process of FTTH construction, the optical fiber resource is found to be a big key factor for restricting the FTTH construction, the existing optical fiber resource is limited, and the optical cable resource is very short. Meanwhile, due to light splitting attenuation, only a 5km range can be covered in 1:64 light splitting, and service coverage cannot be realized in part of regions. In order to solve the problems of resource shortage and coverage distance of the FTTH optical cable, PON fiber aggregation remote equipment is generally used.
The working principle is as follows: the method comprises the steps that 4/8-path OLT-side GPON service aggregation remote is realized in remote equipment, 4/8-path GPON interfaces at an OLT side are connected with 4/8-path GPON interfaces at a local side, and OTU signal conversion of PON signals at the OLT side is realized; the 4/8 PON interfaces of the far-end equipment are connected with the optical splitter, and the conversion from the local-end 4/8 GPON signals to the far-end OTU signals is realized. All PON interfaces are independent and do not interfere with each other.
In the current PON remote device based on an OTN, a PON signal is transparently transmitted, and there is a Re-amplifying, Re-mapping, Re-timing function of an optical signal in both PON interfaces of the local remote device and the remote device, so that when an optical node fault occurs at any node of the entire link. The OLT equipment cannot effectively judge and report, and the maintainability of the whole system is reduced.
Disclosure of Invention
In view of the defects in the prior art, the present invention aims to provide a GPON remote system, a management method, and a storage medium, which improve the maintainability of the GPON system.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a GPON remote system: the GPON remote system comprises a local remote device and a remote device, wherein:
the local side remote equipment comprises an OLT optical transceiver module, a received data regeneration module, a first OTN mapping module, a first OTN optical transceiver module, a first OTN demapping module and a local side PON proxy module, wherein:
the OLT optical transceiver module is used for receiving a downlink optical signal sent by the OLT device and sending the downlink optical signal to the received data regeneration module; the optical line terminal is also used for sending uplink optical signals and alarm information sent by the local side PON proxy module to the OLT equipment;
the received data regeneration module is configured to receive a downlink optical signal sent by the OLT optical transceiver module and send the downlink optical signal to the first OTN mapping module and the local side PON proxy module;
the first OTN mapping module is used for mapping the downlink optical signal sent by the receiving regenerator to the first OTN optical transceiver module; the optical network unit is further configured to send an OTN mapping alarm to the local side PON proxy module when the downlink optical signal is abnormal;
the first OTN optical transceiver module is used for communicating with the remote equipment;
the first OTN demapping module is configured to demap an uplink optical signal of the first OTN optical transceiver module to the local side PON proxy module; the optical network unit is further configured to send an OTN demapping alarm to the local side PON proxy module when the uplink optical signal is abnormal;
the local side PON proxy module is used for analyzing and receiving the downlink optical signals sent by the regenerator, acquiring optical link state information from the downlink optical signals, and sending relay uplink optical signals in different time intervals according to the optical link state information; when monitoring an OTN mapping alarm or an OTN demapping alarm, sending control information to the OLT optical transceiver module to close an optical transceiver function of the OLT optical transceiver module; reporting alarm information to the local remote equipment in a PLOAM message form;
the remote device comprises an ONU optical transceiver module, a data sending regeneration module, a second OTN mapping module, a second OTN optical transceiver module, a second OTN demapping module and a remote PON proxy module, wherein:
the ONU optical transceiver module is used for receiving an uplink optical signal sent by the ONU device and sending the uplink optical signal to the remote PON proxy module; the optical network unit is also used for sending the downlink optical signal sent by the sending data regeneration module to the ONU equipment;
the second OTN mapping module is configured to map an uplink optical signal sent by the far-end PON proxy module to a second OTN optical transceiver module; the optical network unit is further configured to send an OTN mapping alarm to the remote PON proxy module when the uplink optical signal is abnormal;
the second OTN optical transceiver module is used for communicating with the local remote equipment;
the second OTN demapping module is configured to demap a downlink optical signal sent by the second OTN optical transceiver module to the send data regeneration module and the far-end PON proxy module; the optical network unit is further configured to send an OTN demapping alarm to the remote PON proxy module when the downlink optical signal is abnormal;
the sending data regeneration module is used for receiving the downlink optical signal sent by the second OTN demapping module and sending the downlink optical signal to the ONU optical transceiver module;
the far-end PON proxy module is used for analyzing the downlink optical signals sent by the second OTN demapping module, acquiring optical link state information from the downlink optical signals, and sending relay uplink optical signals in time-divided periods according to the optical link state information; when monitoring an OTN mapping alarm or an OTN demapping alarm, sending control information to the ONU optical transceiver module to close an optical transceiver function of the ONU optical transceiver module; and reporting alarm information to the local remote equipment in a PLOAM message form.
On the basis of the above technical solution, the local side PON proxy module includes a first GTC downlink demultiplexing unit, a first PLOAM information processing unit, a first BW bandwidth information processing unit, a first GTC uplink multiplexing unit, a first OTN payload processing unit, and a sending relay unit:
the first GTC downlink demultiplexing unit is used for analyzing and receiving downlink optical signals sent by the regenerator, extracting all bandwidth allocation information, downlink frame positioning signals and downlink PLOAM information which are issued to the ONU by the OLT equipment from the downlink optical signals, sending the bandwidth allocation information and the downlink frame positioning signals to the first BW bandwidth information processing unit, and sending the downlink PLOAM information to the first PLOAM information processing unit;
the first PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the local side PON agent at the same time and sending the PLOAM information to the first GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the first BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the first GTC downlink demultiplexing unit; analyzing an OTN alarm signal sent by the first PLOAM information processing unit, and if the OTN alarm signal is valid, outputting CONTROL information to the OLT optical transceiver module, wherein the CONTROL information is that the LASER _ CONTROL signal is not enabled so as to close an optical sending function of the OLT optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an OLT optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and downlink frame positioning signals, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the local side PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a first OTN payload processing unit, and if the current time window is the sending time window of the local side PON proxy module, sending an agent enabling signal to a first GTC uplink multiplexing unit;
the first GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the first BW bandwidth information processing unit, perform framing and scrambling processing on the PLOAM message of the local PON proxy within the time indicated by the proxy enable signal, and output the local PON proxy signal to the sending relay unit;
the first OTN payload processing unit is used for receiving the uplink optical signal input by the first OTN demapping module and outputting a relay uplink optical signal to the sending relay unit within the time indicated by the OTN enabling signal;
the sending relay unit is used for converting the relay uplink optical signal and the local side PON proxy signal into high-speed serial code streams respectively and sending the high-speed serial code streams to the OLT equipment.
On the basis of the above technical solution, the remote PON proxy module includes a second GTC downlink demultiplexing unit, a second PLOAM information processing unit, a second BW bandwidth information processing unit, a second GTC uplink multiplexing unit, a second OTN payload processing unit, and a receiving relay unit:
the second GTC downlink demultiplexing unit is configured to analyze the downlink optical signal sent by the second OTN demapping module, extract all bandwidth allocation information, downlink frame positioning signals, and downlink PLOAM information, which are issued to the ONU by the OLT device, from the downlink optical signal, send the bandwidth allocation information and the downlink frame positioning signals to the second BW bandwidth information processing unit, and send the downlink PLOAM information to the second PLOAM information processing unit;
the second PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the far-end PON agent at the same time and sending the PLOAM information to the second GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the second BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the second GTC downlink demultiplexing unit; analyzing an OTN alarm signal sent by the second PLOAM information processing unit, and if the OTN alarm signal is valid, outputting CONTROL information to the ONU optical transceiver module, wherein the CONTROL information is a LASER _ CONTROL signal which is not enabled so as to close an optical sending function of the ONU optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an ONU optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and downlink frame positioning signal, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the remote PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a receiving relay unit, and if the current time window is the sending time window of the remote PON proxy module, sending a proxy enabling signal to a second GTC uplink multiplexing unit;
the second GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the second BW bandwidth information processing unit, perform framing and scrambling processing on the input PLOAM message of the remote PON proxy within the time indicated by the proxy enable signal, and output the remote PON proxy signal to the second OTN payload processing unit;
the receiving relay unit is used for receiving the uplink optical signal sent by the ONU optical transceiver module within the time indicated by the OTN enabling signal and outputting the relay uplink optical signal to the OTN payload processing unit;
and the second OTN payload processing unit is used for respectively sending the relay uplink optical signal and the far-end PON proxy signal to the local-end remote equipment.
The invention also discloses a management method adopting the GPON remote system, and the management method of the local remote equipment comprises the following steps:
the downlink direction is as follows:
the OLT optical transceiver module receives a downlink optical signal sent by the OLT device and sends the downlink optical signal to the received data regeneration module; the received data regeneration module receives a downlink optical signal sent by the OLT optical transceiver module and sends the downlink optical signal to the first OTN mapping module and the local side PON proxy module;
the first OTN mapping module maps the downlink optical signals sent by the receiving regenerator to a first OTN optical transceiver module; sending an OTN mapping alarm to the local side PON proxy module when the downlink optical signal is abnormal;
the first OTN optical transceiver module is communicated with the far-end remote equipment;
an uplink direction:
the first OTN optical transceiver module is communicated with the far-end remote equipment;
the first OTN demapping module demaps an uplink optical signal of the first OTN optical transceiver module to the local side PON proxy module; sending an OTN demapping alarm to the local side PON proxy module when the uplink optical signal is abnormal;
the local side PON proxy module analyzes and receives the downlink optical signals sent by the regenerator, acquires optical link state information from the downlink optical signals, and sets time-interval sending relay uplink optical signals according to the optical link state information; when monitoring an OTN mapping alarm or an OTN demapping alarm, sending control information to the OLT optical transceiver module to close an optical transceiver function of the OLT optical transceiver module; reporting alarm information to the local remote equipment in a PLOAM message form;
and the OLT optical transceiver module sends the uplink optical signal and the alarm information sent by the local side PON proxy module to the OLT equipment.
On the basis of the above technical solution, the local side PON proxy module includes a first GTC downlink demultiplexing unit, a first PLOAM information processing unit, a first BW bandwidth information processing unit, a first GTC uplink multiplexing unit, a first OTN payload processing unit, and a sending relay unit:
the first GTC downlink demultiplexing unit is used for analyzing and receiving downlink optical signals sent by the regenerator, extracting all bandwidth allocation information, downlink frame positioning signals and downlink PLOAM information which are issued to the ONU by the OLT equipment from the downlink optical signals, sending the bandwidth allocation information and the downlink frame positioning signals to the first BW bandwidth information processing unit, and sending the downlink PLOAM information to the first PLOAM information processing unit;
the first PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the local side PON agent at the same time and sending the PLOAM information to the first GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the first BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the first GTC downlink demultiplexing unit; analyzing an OTN alarm signal sent by the first PLOAM information processing unit, and if the OTN alarm signal is valid, outputting CONTROL information to the OLT optical transceiver module, wherein the CONTROL information is that the LASER _ CONTROL signal is not enabled so as to close an optical sending function of the OLT optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an OLT optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and downlink frame positioning signals, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the local side PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a first OTN payload processing unit, and if the current time window is the sending time window of the local side PON proxy module, sending an agent enabling signal to a first GTC uplink multiplexing unit;
the first GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the first BW bandwidth information processing unit, perform framing and scrambling processing on the PLOAM message of the local PON proxy within the time indicated by the proxy enable signal, and output the local PON proxy signal to the sending relay unit;
the first OTN payload processing unit is used for receiving the uplink optical signal input by the first OTN demapping module and outputting a relay uplink optical signal to the sending relay unit within the time indicated by the OTN enabling signal;
the sending relay unit is used for converting the relay uplink optical signal and the local side PON proxy signal into high-speed serial code streams respectively and sending the high-speed serial code streams to the OLT equipment.
On the basis of the technical scheme, the management method of the remote equipment comprises the following steps:
the downlink direction is as follows:
the second OTN optical transceiver module is used for communicating with the remote equipment;
the second OTN demapping module demaps the downlink optical signal sent by the second OTN optical transceiver module to the send data regeneration module and the far-end PON proxy module; the optical network unit is further configured to send an OTN demapping alarm to the remote PON proxy module when the downlink optical signal is abnormal;
the sending data regeneration module is used for receiving the downlink optical signal sent by the second OTN demapping module and sending the downlink optical signal to the ONU optical transceiver module;
the ONU optical transceiver module sends the downlink optical signal sent by the sending data regeneration module to ONU equipment;
an uplink direction:
the ONU optical transceiver module is used for receiving an uplink optical signal sent by the ONU device and sending the uplink optical signal to the remote PON proxy module;
the far-end PON proxy module is used for analyzing the downlink optical signals sent by the second OTN demapping module, acquiring optical link state information from the downlink optical signals, and sending relay uplink optical signals in time-divided periods according to the optical link state information; when monitoring an OTN mapping alarm or an OTN demapping alarm, sending control information to the ONU optical transceiver module to close an optical transceiver function of the ONU optical transceiver module; reporting alarm information to the local remote equipment in a PLOAM message form;
the second OTN mapping module is configured to map an uplink optical signal sent by the far-end PON proxy module to a second OTN optical transceiver module; the optical network unit is further configured to send an OTN mapping alarm to the remote PON proxy module when the uplink optical signal is abnormal;
the second OTN optical transceiver module is used for communicating with the local remote equipment.
On the basis of the above technical solution, the remote PON proxy module includes a second GTC downlink demultiplexing unit, a second PLOAM information processing unit, a second BW bandwidth information processing unit, a second GTC uplink multiplexing unit, a second OTN payload processing unit, and a receiving relay unit:
the second GTC downlink demultiplexing unit is configured to analyze the downlink optical signal sent by the second OTN demapping module, extract all bandwidth allocation information, downlink frame positioning signals, and downlink PLOAM information, which are issued to the ONU by the OLT device, from the downlink optical signal, send the bandwidth allocation information and the downlink frame positioning signals to the second BW bandwidth information processing unit, and send the downlink PLOAM information to the second PLOAM information processing unit;
the second PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the far-end PON agent at the same time and sending the PLOAM information to the second GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the second BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the second GTC downlink demultiplexing unit; analyzing an OTN alarm signal sent by the second PLOAM information processing unit, and if the OTN alarm signal is valid, outputting CONTROL information to the ONU optical transceiver module, wherein the CONTROL information is a LASER _ CONTROL signal which is not enabled so as to close an optical sending function of the ONU optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an ONU optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and downlink frame positioning signal, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the remote PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a receiving relay unit, and if the current time window is the sending time window of the remote PON proxy module, sending a proxy enabling signal to a second GTC uplink multiplexing unit;
the second GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the second BW bandwidth information processing unit, perform framing and scrambling processing on the input PLOAM message of the remote PON proxy within the time indicated by the proxy enable signal, and output the remote PON proxy signal to the second OTN payload processing unit;
the receiving relay unit is used for receiving the uplink optical signal sent by the ONU optical transceiver module within the time indicated by the OTN enabling signal and outputting the relayed uplink optical signal to the second OTN payload processing unit;
and the second OTN payload processing unit is used for respectively sending the relay uplink optical signal and the far-end PON proxy signal to the local-end remote equipment.
The invention also discloses a storage medium, which stores a computer program, and the computer program is executed by a processor to realize the management method adopting the GPON remote system.
Compared with the prior art, the invention has the advantages that:
the invention adds PON proxy module in both the local remote device and the remote device, re-analyzes the downstream optical signal and the upstream optical signal in the local remote device and the remote device through the PON proxy module, obtains the state of the optical link and the alarm information, and transmits the alarm information to the OLT device or other management interfaces through PLOAM message, thus improving the maintainability of GPON system.
Drawings
Fig. 1 is a schematic diagram of the operation of a GPON zoom-out system in the embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an operation of a local PON proxy module of a GPON remote system according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an operation of a remote PON proxy module of a GPON remote system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, an embodiment of the present invention provides a GPON remote system: the GPON remote system comprises a local remote device and a remote device, wherein:
the local side remote equipment comprises an OLT optical transceiver module, a received data regeneration module, a first OTN mapping module, a first OTN optical transceiver module, a first OTN demapping module and a local side PON proxy module, wherein:
the OLT optical transceiver module is used for receiving a downlink optical signal sent by the OLT device and sending the downlink optical signal to the received data regeneration module; the optical line terminal is also used for sending uplink optical signals and alarm information sent by the local side PON proxy module to the OLT equipment;
the receiving data regeneration module is used for receiving the downlink optical signal sent by the OLT optical transceiver module and sending the downlink optical signal to the first OTN mapping module and the local side PON proxy module;
the first OTN mapping module is used for mapping the downlink optical signals sent by the receiving regenerator to the first OTN optical transceiver module; the optical network unit is also used for sending OTN mapping alarm to the local side PON proxy module when the downlink optical signal is abnormal;
the first OTN optical transceiver module is used for communicating with the remote equipment;
the first OTN demapping module is configured to demap an uplink optical signal of the first OTN optical transceiver module to the local side PON proxy module; the optical network unit is also used for sending OTN demapping alarm to the local side PON proxy module when the uplink optical signal is abnormal;
the local side PON proxy module is used for analyzing and receiving the downlink optical signals sent by the regenerator, acquiring optical link state information from the downlink optical signals, and setting time-interval sending relay uplink optical signals according to the optical link state information; when monitoring an OTN mapping alarm or an OTN demapping alarm, sending control information to an OLT optical transceiver module to close an optical transceiver function of the OLT optical transceiver module; reporting alarm information to the local remote equipment in a PLOAM message form;
the remote device comprises an ONU optical transceiver module, a data sending regeneration module, a second OTN mapping module, a second OTN optical transceiver module, a second OTN demapping module and a remote PON proxy module, wherein:
the ONU optical transceiver module is used for receiving an uplink optical signal sent by the ONU device and sending the uplink optical signal to the remote PON proxy module; the optical network unit is also used for sending the downlink optical signal sent by the data sending regeneration module to the ONU equipment;
the second OTN mapping module is configured to map the uplink optical signal sent by the far-end PON proxy module to a second OTN optical transceiver module; the optical network unit is also used for sending OTN mapping alarm to the far-end PON proxy module when the uplink optical signal is abnormal;
the second OTN optical transceiver module is used for communicating with the local remote equipment;
the second OTN demapping module is configured to demap the downlink optical signal sent by the second OTN optical transceiver module to the send data regeneration module and the far-end PON proxy module; the optical network unit is also used for sending OTN demapping alarm to the far-end PON proxy module when the downlink optical signal is abnormal;
the sending data regeneration module is used for receiving the downlink optical signal sent by the second OTN demapping module and sending the downlink optical signal to the ONU optical transceiver module;
the far-end PON proxy module is used for analyzing the downlink optical signals sent by the second OTN demapping module, acquiring optical link state information from the downlink optical signals, and setting time-division sending relay uplink optical signals according to the optical link state information; when monitoring an OTN mapping alarm or an OTN de-mapping alarm, sending control information to the ONU optical transceiver module to close the optical transceiver function of the ONU optical transceiver module; and reporting the alarm information to the local remote equipment in a PLOAM message form.
As shown in fig. 2, the local side PON proxy module includes a first GTC downlink demultiplexing unit, a first PLOAM information processing unit, a first BW bandwidth information processing unit, a first GTC uplink multiplexing unit, a first OTN payload processing unit, and a sending relay unit: GTC is an abbreviation of gpontranssmisionconversion, i.e., a transmission convergence layer.
The first GTC downlink demultiplexing unit is used for analyzing and receiving downlink optical signals sent by the regenerator, extracting all bandwidth allocation information, downlink frame positioning signals and downlink PLOAM information which are issued to the ONU by the OLT equipment from the downlink optical signals, sending the bandwidth allocation information and the downlink frame positioning signals to the first BW bandwidth information processing unit, and sending the downlink PLOAM information to the first PLOAM information processing unit;
the first PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the local side PON agent at the same time and sending the PLOAM information to the first GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the first BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the first GTC downlink demultiplexing unit; analyzing the OTN alarm signal sent by the first PLOAM information processing unit, if the OTN alarm signal is valid, outputting CONTROL information to the OLT optical transceiver module, wherein the CONTROL information is a LASER _ CONTROL signal which is not enabled so as to close the optical sending function of the OLT optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an OLT optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and the downlink frame positioning signal, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the local side PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a first OTN payload processing unit, and if the current time window is the sending time window of the local side PON proxy module, sending an agent enabling signal to a first GTC uplink multiplexing unit;
the first GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the first BW bandwidth information processing unit, perform framing and scrambling processing on the PLOAM message of the local PON proxy within the time indicated by the proxy enable signal, and output the local PON proxy signal to the sending relay unit;
the first OTN payload processing unit is used for receiving the uplink optical signal input by the first OTN demapping module and outputting a relay uplink optical signal to the sending relay unit within the time indicated by the OTN enabling signal;
the sending relay unit is used for converting the relay uplink optical signal and the local side PON proxy signal into high-speed serial code streams respectively and sending the high-speed serial code streams to the OLT equipment.
Referring to fig. 3, the far-end PON proxy module includes a second GTC downlink demultiplexing unit, a second PLOAM information processing unit, a second BW bandwidth information processing unit, a second GTC uplink multiplexing unit, a second OTN payload processing unit, and a receiving relay unit:
the second GTC downlink demultiplexing unit is configured to analyze the downlink optical signal sent by the second OTN demapping module, extract all bandwidth allocation information, downlink frame positioning signals, and downlink PLOAM information, which are issued to the ONU by the OLT device, from the downlink optical signal, send the bandwidth allocation information and the downlink frame positioning signals to the second BW bandwidth information processing unit, and send the downlink PLOAM information to the second PLOAM information processing unit;
the second PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the far-end PON agent at the same time and sending the PLOAM information to the second GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the second BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the second GTC downlink demultiplexing unit; analyzing the OTN alarm signal sent by the second PLOAM information processing unit, and if the OTN alarm signal is valid, outputting CONTROL information to the ONU optical transceiver module, wherein the CONTROL information is a LASER _ CONTROL signal which is not enabled so as to close the optical sending function of the ONU optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an ONU optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and the downlink frame positioning signal, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the remote PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a receiving relay unit, and if the current time window is the sending time window of the remote PON proxy module, sending a proxy enabling signal to a second GTC uplink multiplexing unit;
the second GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the second BW bandwidth information processing unit, perform framing and scrambling processing on the input PLOAM message of the remote PON proxy within the time indicated by the proxy enable signal, and output the remote PON proxy signal to the second OTN payload processing unit;
the receiving relay unit is used for receiving the uplink optical signal sent by the ONU optical transceiver module within the time indicated by the OTN enabling signal and outputting the relayed uplink optical signal to the second OTN payload processing unit;
and the second OTN payload processing unit is used for respectively sending the relay uplink optical signal and the far-end PON proxy signal to the local-end remote equipment.
The embodiment of the invention also discloses a management method of the GPON remote system, and the management method of the local remote equipment comprises the following steps:
the downlink direction is as follows:
the OLT optical transceiver module receives a downlink optical signal sent by the OLT device and sends the downlink optical signal to the received data regeneration module; the received data regeneration module receives a downlink optical signal sent by the OLT optical transceiver module and sends the downlink optical signal to the first OTN mapping module and the local side PON proxy module;
the first OTN mapping module maps the downlink optical signals sent by the receiving regenerator to the first OTN optical transceiver module; sending OTN mapping alarm to a local side PON proxy module when the downlink optical signal is abnormal;
the first OTN optical transceiver module is communicated with the remote equipment;
an uplink direction:
the first OTN optical transceiver module is communicated with the remote equipment;
the first OTN demapping module demaps an uplink optical signal of the first OTN optical transceiver module to the local side PON proxy module; sending OTN de-mapping alarm to a local side PON proxy module when the uplink optical signal is abnormal;
the local side PON proxy module analyzes and receives the downlink optical signals sent by the regenerator, acquires optical link state information from the downlink optical signals, and sets time-interval sending relay uplink optical signals according to the optical link state information; when monitoring an OTN mapping alarm or an OTN demapping alarm, sending control information to an OLT optical transceiver module to close an optical transceiver function of the OLT optical transceiver module; reporting alarm information to the local remote equipment in a PLOAM message form;
and the OLT optical transceiver module sends the uplink optical signal and the alarm information sent by the local side PON proxy module to the OLT equipment.
The local side PON proxy module comprises a first GTC downlink demultiplexing unit, a first PLOAM information processing unit, a first BW bandwidth information processing unit, a first GTC uplink multiplexing unit, a first OTN payload processing unit and a sending relay unit:
the first GTC downlink demultiplexing unit is used for analyzing and receiving downlink optical signals sent by the regenerator, extracting all bandwidth allocation information, downlink frame positioning signals and downlink PLOAM information which are issued to the ONU by the OLT equipment from the downlink optical signals, sending the bandwidth allocation information and the downlink frame positioning signals to the first BW bandwidth information processing unit, and sending the downlink PLOAM information to the first PLOAM information processing unit;
the first PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the local side PON agent at the same time and sending the PLOAM information to the first GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the first BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the first GTC downlink demultiplexing unit; analyzing the OTN alarm signal sent by the first PLOAM information processing unit, if the OTN alarm signal is valid, outputting CONTROL information to the OLT optical transceiver module, wherein the CONTROL information is a LASER _ CONTROL signal which is not enabled so as to close the optical sending function of the OLT optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an OLT optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and the downlink frame positioning signal, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the local side PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a first OTN payload processing unit, and if the current time window is the sending time window of the local side PON proxy module, sending an agent enabling signal to a first GTC uplink multiplexing unit;
the first GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the first BW bandwidth information processing unit, perform framing and scrambling processing on the PLOAM message of the local PON proxy within the time indicated by the proxy enable signal, and output the local PON proxy signal to the sending relay unit;
the first OTN payload processing unit is used for receiving the uplink optical signal input by the first OTN demapping module and outputting a relay uplink optical signal to the sending relay unit within the time indicated by the OTN enabling signal;
the sending relay unit is used for converting the relay uplink optical signal and the local side PON proxy signal into high-speed serial code streams respectively and sending the high-speed serial code streams to the OLT equipment.
The management method of the remote equipment comprises the following steps:
the downlink direction is as follows:
the second OTN optical transceiver module is used for communicating with the remote equipment;
the second OTN demapping module demaps the downlink optical signal sent by the second OTN optical transceiver module to the sent data regeneration module and the far-end PON proxy module; the optical network unit is also used for sending OTN demapping alarm to the far-end PON proxy module when the downlink optical signal is abnormal;
the sending data regeneration module is used for receiving the downlink optical signal sent by the second OTN demapping module and sending the downlink optical signal to the ONU optical transceiver module;
the ONU optical transceiver module sends the downlink optical signal sent by the data sending regeneration module to the ONU equipment;
an uplink direction:
the ONU optical transceiver module is used for receiving an uplink optical signal sent by the ONU device and sending the uplink optical signal to the remote PON proxy module;
the far-end PON proxy module is used for analyzing the downlink optical signals sent by the second OTN demapping module, acquiring optical link state information from the downlink optical signals, and setting time-division sending relay uplink optical signals according to the optical link state information; when monitoring an OTN mapping alarm or an OTN de-mapping alarm, sending control information to the ONU optical transceiver module to close the optical transceiver function of the ONU optical transceiver module; reporting alarm information to the local remote equipment in a PLOAM message form;
the second OTN mapping module is configured to map the uplink optical signal sent by the far-end PON proxy module to a second OTN optical transceiver module; the optical network unit is also used for sending OTN mapping alarm to the far-end PON proxy module when the uplink optical signal is abnormal;
the second OTN optical transceiver module is used for communicating with the local remote equipment.
The far-end PON proxy module comprises a second GTC downlink demultiplexing unit, a second PLOAM information processing unit, a second BW bandwidth information processing unit, a second GTC uplink multiplexing unit, a second OTN payload processing unit and a receiving relay unit:
the second GTC downlink demultiplexing unit is configured to analyze the downlink optical signal sent by the second OTN demapping module, extract all bandwidth allocation information, downlink frame positioning signals, and downlink PLOAM information, which are issued to the ONU by the OLT device, from the downlink optical signal, send the bandwidth allocation information and the downlink frame positioning signals to the second BW bandwidth information processing unit, and send the downlink PLOAM information to the second PLOAM information processing unit;
the second PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the far-end PON agent at the same time and sending the PLOAM information to the second GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the second BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the second GTC downlink demultiplexing unit; analyzing the OTN alarm signal sent by the second PLOAM information processing unit, and if the OTN alarm signal is valid, outputting CONTROL information to the ONU optical transceiver module, wherein the CONTROL information is a LASER _ CONTROL signal which is not enabled so as to close the optical sending function of the ONU optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an ONU optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and the downlink frame positioning signal, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the remote PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a receiving relay unit, and if the current time window is the sending time window of the remote PON proxy module, sending a proxy enabling signal to a second GTC uplink multiplexing unit;
the second GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the second BW bandwidth information processing unit, perform framing and scrambling processing on the input PLOAM message of the remote PON proxy within the time indicated by the proxy enable signal, and output the remote PON proxy signal to the second OTN payload processing unit;
the receiving relay unit is used for receiving the uplink optical signal sent by the ONU optical transceiver module within the time indicated by the OTN enabling signal and outputting the relayed uplink optical signal to the second OTN payload processing unit;
and the second OTN payload processing unit is used for respectively sending the relay uplink optical signal and the far-end PON proxy signal to the local-end remote equipment.
The embodiment of the invention also discloses a storage medium, wherein the storage medium is stored with a computer program, and the computer program is executed by a processor to realize the management method of the GPON remote system.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (8)
1. A GPON zoom-out system, characterized in that: the GPON remote system comprises a local remote device and a remote device, wherein:
the local side remote equipment comprises an OLT optical transceiver module, a received data regeneration module, a first OTN mapping module, a first OTN optical transceiver module, a first OTN demapping module and a local side PON proxy module, wherein:
the OLT optical transceiver module is used for receiving a downlink optical signal sent by the OLT device and sending the downlink optical signal to the received data regeneration module; the optical line terminal is also used for sending uplink optical signals and alarm information sent by the local side PON proxy module to the OLT equipment;
the received data regeneration module is configured to receive a downlink optical signal sent by the OLT optical transceiver module and send the downlink optical signal to the first OTN mapping module and the local side PON proxy module;
the first OTN mapping module is used for mapping the downlink optical signal sent by the receiving regenerator to the first OTN optical transceiver module; the optical network unit is further configured to send an OTN mapping alarm to the local side PON proxy module when the downlink optical signal is abnormal;
the first OTN optical transceiver module is used for communicating with the remote equipment;
the first OTN demapping module is configured to demap an uplink optical signal of the first OTN optical transceiver module to the local side PON proxy module; the optical network unit is further configured to send an OTN demapping alarm to the local side PON proxy module when the uplink optical signal is abnormal;
the local side PON proxy module is used for analyzing and receiving the downlink optical signals sent by the regenerator, acquiring optical link state information from the downlink optical signals, and sending relay uplink optical signals in different time intervals according to the optical link state information; when monitoring an OTN mapping alarm or an OTN demapping alarm, sending control information to the OLT optical transceiver module to close an optical transceiver function of the OLT optical transceiver module; reporting alarm information to the local remote equipment in a PLOAM message form;
the remote device comprises an ONU optical transceiver module, a data sending regeneration module, a second OTN mapping module, a second OTN optical transceiver module, a second OTN demapping module and a remote PON proxy module, wherein:
the ONU optical transceiver module is used for receiving an uplink optical signal sent by the ONU device and sending the uplink optical signal to the remote PON proxy module; the optical network unit is also used for sending the downlink optical signal sent by the sending data regeneration module to the ONU equipment;
the second OTN mapping module is configured to map an uplink optical signal sent by the far-end PON proxy module to a second OTN optical transceiver module; the optical network unit is further configured to send an OTN mapping alarm to the remote PON proxy module when the uplink optical signal is abnormal;
the second OTN optical transceiver module is used for communicating with the local remote equipment;
the second OTN demapping module is configured to demap a downlink optical signal sent by the second OTN optical transceiver module to the send data regeneration module and the far-end PON proxy module; the optical network unit is further configured to send an OTN demapping alarm to the remote PON proxy module when the downlink optical signal is abnormal;
the sending data regeneration module is used for receiving the downlink optical signal sent by the second OTN demapping module and sending the downlink optical signal to the ONU optical transceiver module;
the far-end PON proxy module is used for analyzing the downlink optical signals sent by the second OTN demapping module, acquiring optical link state information from the downlink optical signals, and sending relay uplink optical signals in time-divided periods according to the optical link state information; when monitoring an OTN mapping alarm or an OTN demapping alarm, sending control information to the ONU optical transceiver module to close an optical transceiver function of the ONU optical transceiver module; and reporting alarm information to the local remote equipment in a PLOAM message form.
2. A GPON zoom-out system as claimed in claim 1, wherein: the local side PON proxy module comprises a first GTC downlink demultiplexing unit, a first PLOAM information processing unit, a first BW bandwidth information processing unit, a first GTC uplink multiplexing unit, a first OTN payload processing unit and a sending relay unit:
the first GTC downlink demultiplexing unit is used for analyzing and receiving downlink optical signals sent by the regenerator, extracting all bandwidth allocation information, downlink frame positioning signals and downlink PLOAM information which are issued to the ONU by the OLT equipment from the downlink optical signals, sending the bandwidth allocation information and the downlink frame positioning signals to the first BW bandwidth information processing unit, and sending the downlink PLOAM information to the first PLOAM information processing unit;
the first PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the local side PON agent at the same time and sending the PLOAM information to the first GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the first BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the first GTC downlink demultiplexing unit; analyzing an OTN alarm signal sent by the first PLOAM information processing unit, and if the OTN alarm signal is valid, outputting CONTROL information to the OLT optical transceiver module, wherein the CONTROL information is that the LASER _ CONTROL signal is not enabled so as to close an optical sending function of the OLT optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an OLT optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and downlink frame positioning signals, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the local side PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a first OTN payload processing unit, and if the current time window is the sending time window of the local side PON proxy module, sending an agent enabling signal to a first GTC uplink multiplexing unit;
the first GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the first BW bandwidth information processing unit, perform framing and scrambling processing on the PLOAM message of the local PON proxy within the time indicated by the proxy enable signal, and output the local PON proxy signal to the sending relay unit;
the first OTN payload processing unit is used for receiving the uplink optical signal input by the first OTN demapping module and outputting a relay uplink optical signal to the sending relay unit within the time indicated by the OTN enabling signal;
the sending relay unit is used for converting the relay uplink optical signal and the local side PON proxy signal into high-speed serial code streams respectively and sending the high-speed serial code streams to the OLT equipment.
3. A GPON zoom-out system as claimed in claim 1, wherein:
the remote PON agent module includes a second GTC downlink demultiplexing unit, a second PLOAM information processing unit, a second BW bandwidth information processing unit, a second GTC uplink multiplexing unit, a second OTN payload processing unit, and a receiving relay unit:
the second GTC downlink demultiplexing unit is configured to analyze the downlink optical signal sent by the second OTN demapping module, extract all bandwidth allocation information, downlink frame positioning signals, and downlink PLOAM information, which are issued to the ONU by the OLT device, from the downlink optical signal, send the bandwidth allocation information and the downlink frame positioning signals to the second BW bandwidth information processing unit, and send the downlink PLOAM information to the second PLOAM information processing unit;
the second PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the far-end PON agent at the same time and sending the PLOAM information to the second GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the second BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the second GTC downlink demultiplexing unit; analyzing an OTN alarm signal sent by the second PLOAM information processing unit, and if the OTN alarm signal is valid, outputting CONTROL information to the ONU optical transceiver module, wherein the CONTROL information is a LASER _ CONTROL signal which is not enabled so as to close an optical sending function of the ONU optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an ONU optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and downlink frame positioning signal, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the remote PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a receiving relay unit, and if the current time window is the sending time window of the remote PON proxy module, sending a proxy enabling signal to a second GTC uplink multiplexing unit;
the second GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the second BW bandwidth information processing unit, perform framing and scrambling processing on the input PLOAM message of the remote PON proxy within the time indicated by the proxy enable signal, and output the remote PON proxy signal to the second OTN payload processing unit;
the receiving relay unit is used for receiving the uplink optical signal sent by the ONU optical transceiver module within the time indicated by the OTN enabling signal and outputting the relayed uplink optical signal to the second OTN payload processing unit;
and the second OTN payload processing unit is used for respectively sending the relay uplink optical signal and the far-end PON proxy signal to the local-end remote equipment.
4. A management method using the GPON remote system according to any one of claims 1 to 3, wherein: the management method of the local remote equipment comprises the following steps:
the downlink direction is as follows:
the OLT optical transceiver module receives a downlink optical signal sent by the OLT device and sends the downlink optical signal to the received data regeneration module; the received data regeneration module receives a downlink optical signal sent by the OLT optical transceiver module and sends the downlink optical signal to the first OTN mapping module and the local side PON proxy module;
the first OTN mapping module maps the downlink optical signals sent by the receiving regenerator to a first OTN optical transceiver module; sending an OTN mapping alarm to the local side PON proxy module when the downlink optical signal is abnormal;
the first OTN optical transceiver module is communicated with the far-end remote equipment;
an uplink direction:
the first OTN optical transceiver module is communicated with the far-end remote equipment;
the first OTN demapping module demaps an uplink optical signal of the first OTN optical transceiver module to the local side PON proxy module; sending an OTN demapping alarm to the local side PON proxy module when the uplink optical signal is abnormal;
the local side PON proxy module analyzes and receives the downlink optical signals sent by the regenerator, acquires optical link state information from the downlink optical signals, and sets time-interval sending relay uplink optical signals according to the optical link state information; when monitoring an OTN mapping alarm or an OTN demapping alarm, sending control information to the OLT optical transceiver module to close an optical transceiver function of the OLT optical transceiver module; reporting alarm information to the local remote equipment in a PLOAM message form;
and the OLT optical transceiver module sends the uplink optical signal and the alarm information sent by the local side PON proxy module to the OLT equipment.
5. The method for managing a GPON remote system as claimed in claim 4, wherein: the local side PON proxy module comprises a first GTC downlink demultiplexing unit, a first PLOAM information processing unit, a first BW bandwidth information processing unit, a first GTC uplink multiplexing unit, a first OTN payload processing unit and a sending relay unit:
the first GTC downlink demultiplexing unit is used for analyzing and receiving downlink optical signals sent by the regenerator, extracting all bandwidth allocation information, downlink frame positioning signals and downlink PLOAM information which are issued to the ONU by the OLT equipment from the downlink optical signals, sending the bandwidth allocation information and the downlink frame positioning signals to the first BW bandwidth information processing unit, and sending the downlink PLOAM information to the first PLOAM information processing unit;
the first PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the local side PON agent at the same time and sending the PLOAM information to the first GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the first BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the first GTC downlink demultiplexing unit; analyzing an OTN alarm signal sent by the first PLOAM information processing unit, and if the OTN alarm signal is valid, outputting CONTROL information to the OLT optical transceiver module, wherein the CONTROL information is that the LASER _ CONTROL signal is not enabled so as to close an optical sending function of the OLT optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an OLT optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and downlink frame positioning signals, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the local side PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a first OTN payload processing unit, and if the current time window is the sending time window of the local side PON proxy module, sending an agent enabling signal to a first GTC uplink multiplexing unit;
the first GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the first BW bandwidth information processing unit, perform framing and scrambling processing on the PLOAM message of the local PON proxy within the time indicated by the proxy enable signal, and output the local PON proxy signal to the sending relay unit;
the first OTN payload processing unit is used for receiving the uplink optical signal input by the first OTN demapping module and outputting a relay uplink optical signal to the sending relay unit within the time indicated by the OTN enabling signal;
the sending relay unit is used for converting the relay uplink optical signal and the local side PON proxy signal into high-speed serial code streams respectively and sending the high-speed serial code streams to the OLT equipment.
6. The method for managing a GPON remote system as claimed in claim 4, wherein: the management method of the remote terminal pulling equipment comprises the following steps:
the downlink direction is as follows:
the second OTN optical transceiver module is used for communicating with the remote equipment;
the second OTN demapping module demaps the downlink optical signal sent by the second OTN optical transceiver module to the send data regeneration module and the far-end PON proxy module; the optical network unit is further configured to send an OTN demapping alarm to the remote PON proxy module when the downlink optical signal is abnormal;
the sending data regeneration module is used for receiving the downlink optical signal sent by the second OTN demapping module and sending the downlink optical signal to the ONU optical transceiver module;
the ONU optical transceiver module sends the downlink optical signal sent by the sending data regeneration module to ONU equipment;
an uplink direction:
the ONU optical transceiver module is used for receiving an uplink optical signal sent by a second ONU device and sending the uplink optical signal to the remote PON proxy module;
the far-end PON proxy module is used for analyzing the downlink optical signals sent by the second OTN demapping module, acquiring optical link state information from the downlink optical signals, and sending relay uplink optical signals in time-divided periods according to the optical link state information; when monitoring an OTN mapping alarm or an OTN demapping alarm, sending control information to the ONU optical transceiver module to close an optical transceiver function of the ONU optical transceiver module; reporting alarm information to the local remote equipment in a PLOAM message form;
the second OTN mapping module is configured to map an uplink optical signal sent by the far-end PON proxy module to a second OTN optical transceiver module; the optical network unit is further configured to send an OTN mapping alarm to the remote PON proxy module when the uplink optical signal is abnormal;
the second OTN optical transceiver module is used for communicating with the local remote equipment.
7. The method for managing a GPON remote system according to claim 6, wherein:
the remote PON agent module includes a second GTC downlink demultiplexing unit, a second PLOAM information processing unit, a second BW bandwidth information processing unit, a second GTC uplink multiplexing unit, a second OTN payload processing unit, and a receiving relay unit:
the second GTC downlink demultiplexing unit is configured to analyze the downlink optical signal sent by the second OTN demapping module, extract all bandwidth allocation information, downlink frame positioning signals, and downlink PLOAM information, which are issued to the ONU by the OLT device, from the downlink optical signal, send the bandwidth allocation information and the downlink frame positioning signals to the second BW bandwidth information processing unit, and send the downlink PLOAM information to the second PLOAM information processing unit;
the second PLOAM information processing unit is used for analyzing the downlink PLOAM information, generating a PLOAM information of the far-end PON agent at the same time and sending the PLOAM information to the second GTC uplink multiplexing unit; monitoring an OTN mapping alarm signal and an OTN demapping alarm signal at the same time, and outputting the OTN alarm signal to indicate that an OTN layer fails when the OTN mapping alarm signal or the OTN demapping alarm signal is found;
the second BW bandwidth information processing unit is used for analyzing the bandwidth allocation information and the downlink frame positioning signal sent by the second GTC downlink demultiplexing unit; analyzing an OTN alarm signal sent by the second PLOAM information processing unit, and if the OTN alarm signal is valid, outputting CONTROL information to the ONU optical transceiver module, wherein the CONTROL information is a LASER _ CONTROL signal which is not enabled so as to close an optical sending function of the ONU optical transceiver module; if the OTN alarm signal is invalid, outputting CONTROL information to an ONU optical transceiver module at corresponding time according to the analyzed bandwidth allocation information and downlink frame positioning signal, wherein the CONTROL information is an enable LASER _ CONTROL signal; identifying whether the current time window is the ONU equipment windowing time or the sending time window of the remote PON proxy module, if the current time window is the ONU equipment windowing time, sending an OTN enabling signal to a receiving relay unit, and if the current time window is the sending time window of the remote PON proxy module, sending a proxy enabling signal to a second GTC uplink multiplexing unit;
the second GTC uplink multiplexing unit is configured to receive the proxy enable signal sent by the second BW bandwidth information processing unit, perform framing and scrambling processing on the input PLOAM message of the remote PON proxy within the time indicated by the proxy enable signal, and output the remote PON proxy signal to the second OTN payload processing unit;
the receiving relay unit is used for receiving the uplink optical signal sent by the ONU optical transceiver module within the time indicated by the OTN enabling signal and outputting the relayed uplink optical signal to the second OTN payload processing unit;
and the second OTN payload processing unit is used for respectively sending the relay uplink optical signal and the far-end PON proxy signal to the local-end remote equipment.
8. A storage medium having a computer program stored thereon, characterized in that: the computer program, when executed by a processor, implements the method of any of claims 4 to 7.
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| CN110121124B (en) * | 2019-05-10 | 2021-11-19 | 江西山水光电科技股份有限公司 | PON aggregation remote DCN ring prevention method |
| CN112118048A (en) * | 2019-06-20 | 2020-12-22 | 中国移动通信有限公司研究院 | Control method of forwarding network, network equipment and system |
| CN111510799A (en) * | 2020-04-16 | 2020-08-07 | 广州市满航通信科技有限公司 | GPON aggregation remote system |
| CN117425101B (en) * | 2023-12-18 | 2024-03-22 | 厦门鹏芯半导体有限公司 | Frame decoding method and device of GPON resource checker |
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