CN105323662B - Passive optical network and its Low-power-consumptiocontrol control method and optical network unit - Google Patents
Passive optical network and its Low-power-consumptiocontrol control method and optical network unit Download PDFInfo
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- CN105323662B CN105323662B CN201510788610.7A CN201510788610A CN105323662B CN 105323662 B CN105323662 B CN 105323662B CN 201510788610 A CN201510788610 A CN 201510788610A CN 105323662 B CN105323662 B CN 105323662B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/806—Arrangements for feeding power
- H04B10/808—Electrical power feeding of an optical transmission system
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Abstract
The invention discloses a kind of passive optical network and its Low-power-consumptiocontrol control method and optical network unit, the method includes：After OLT enters low-power consumption mode according to the strategy decision pre-established the ONU, Low-Power Instruction is sent to the ONU；For the ONU system equipments of the ONU after receiving the Low-Power Instruction, the ONU optical modules for controlling the ONU enter low-power consumption mode.The case where entering low-power consumption mode according to the strategy instruction ONU pre-established due to OLT, the ONU in entire passive optical network can be controlled to OLT, avoid the occurrence of confusion；After ONU optical modules enter low-power consumption mode, it can achieve the purpose that save power consumption, energy saving.
Description
The application be propose on October 12nd, 2012 it is entitled " passive optical network and its Low-power-consumptiocontrol control method and
The divisional application of the Chinese invention patent application 201210385637.8 of optical network unit ".
Technical field
The present invention relates to Fibre Optical Communication Technology more particularly to a kind of passive optical network and its Low-power-consumptiocontrol control method and light nets
Network unit.
Background technology
Current domestic market and international market, the fiber optic communication direction merged with a large bandwidth and at a high rate with multiple business
It has begun to apply；In numerous solutions, the appearance of fiber to the home (FTTH) is just considered as the ultimate of broadband access
Solution.Domestic market large-area applications.
And in the numerous schemes of FTTH, GPON（Gigabit Passive Optical Network, G bit passive light
Network）Transmission rate maximum supports multiple business up to 2.5Gbps, including ATM, Ethernet, TDM, CATV, can be with
Say it is the most perfect PON network technology of current function and a kind of very economical, towards broadband network access mode, therefore,
GPON networks are concerned, and become the soft exchange mode of current mainstream.With the extensive use of GPON networks, in GPON networks
ONU optical modules also get a lot of applications.
In GPON networks as shown in Figure 1, OLT（Optical Line Terminator, optical line terminal）Usually set
It sets in the central office of the access net system of optical fiber telecommunications system, OLT is responsible for converting the electrical signal data in interchanger to light letter
Number is sent, and receives the optical signal that external transmission comes, and is translated into electric signal and is conveyed to interchanger.OLT is logical
Cross ODN（Light feeder network）With ONU（Optical net unit, optical network unit）It is connected, ONU is generally arranged at local side, i.e.,
User terminal or building generally include ONU optical modules and ONU system equipments in one ONU；POS（Passive Optical
Splitter, passive optical splitters）Or abbreviation Splitter（Optical splitter）, generally there are 2N to divide equally port, if input port
Light intensity is 1, then the light intensity of each output port is 1/N.For a multi-plexing light accessing system, usually 1 OLT is placed on telecommunication center
Office, then by optical splitter, typically at least 1 point 32 or 1 points 64 or even 1 points 128, i.e. 1 OLT band 32 or 64 or 128
ONU。
As shown in Fig. 2, OLT is to send downlink data to ONU in a broadcast manner；As shown in figure 3, ONU is with TDMA
（Time Division Multiple Address, time division multiplexing）Mode sends upstream data to OLT, line number in ONU transmissions
According to timeslice specified by OLT.
It was found by the inventors of the present invention that in practical applications, with the increase of ONU, network institute wasted work consumption is increasing, consumption
It is more with the energy；Therefore, there is the demand for reducing ONU power consumptions in the prior art.
Invention content
The embodiment provides a kind of passive optical network and its Low-power-consumptiocontrol control method and optical network unit, to
The power consumption of ONU is reduced, it is energy saving.
According to an aspect of the invention, there is provided Low-power-consumptiocontrol control method in a kind of passive optical network, wherein the nothing
Source optical-fiber network includes：Optical line terminal OLT and multiple optical network unit ONUs；The method includes：
For one of ONU, after the OLT enters low-power consumption mode according to the strategy decision pre-established the ONU, to
The ONU sends Low-Power Instruction；
After receiving the Low-Power Instruction, the ONU optical modules for controlling the ONU enter the ONU system equipments of the ONU
Low-power consumption mode.
Wherein, the strategy includes：
After the low-power consumption solicited message that the OLT receives that the ONU is sent, determine that the ONU enters low-power consumption mode；
Or
The OLT determines that the free time of the ONU is more than set period of time, then determines that the ONU enters low-power consumption mode.
The low-power consumption mode is specially doze mode and the ONU optical modules enter low-power consumption mode and are specially：
The ONU optical modes driving circuit in the block is cut to the bias current and modulation electric current of laser offer；Alternatively,
The low-power consumption mode be specially deep sleep mode and the ONU optical modules to enter low-power consumption mode specific
For：
The ONU optical modes driving circuit in the block is cut to the bias current and modulation electric current of laser offer, and institute
State the access of ONU optical modes amplitude limiting amplifier circuit cut-out and trans-impedance amplifier TIA in the block；Alternatively,
The low-power consumption mode be specially hypophypnosis pattern and the ONU optical modules to enter low-power consumption mode specific
For：
The ONU optical modes driving circuit in the block is by the bias current provided for laser and modulates current reduction, and
Reduce the electric current in the ONU optical modes amplitude limiting amplifier circuit in the block.
The low-power consumption mode specifically includes：Doze mode, hypophypnosis pattern, deep sleep mode；And
The OLT determines that the free time of the ONU is more than set period of time, then determines that the ONU enters low-power consumption mode
It specifically includes：
The OLT then determines that the ONU enters mould of dozing off if it is determined that the free time of the ONU is more than set period of time A
Formula；
The OLT then determines that the ONU enters hypophypnosis if it is determined that the free time of the ONU is more than set period of time B
Pattern；
The OLT then determines that the ONU enters deep sleep if it is determined that the free time of the ONU is more than set period of time C
Pattern.
The low-power consumption solicited message specifically includes：Doze mode solicited message, hypophypnosis mode request information, depth
Sleep pattern solicited message；And
Before the low-power consumption solicited message that the OLT receives that the ONU is sent, further include：
If it is determined that the downlink data flow of this ONU falls to 0, then send doze mode request to the OLT believes the ONU
Breath；
The ONU is if it is determined that the free time of this ONU is more than set period of time D, then to OLT transmission hypophypnosises
Mode request information；
The ONU is if it is determined that the free time of this ONU is more than set period of time E, then to OLT transmission deep sleeps
Mode request information；And
The OLT enters low-power consumption mode according to the strategy decision pre-established the ONU and specifically includes：
If the OLT receives the doze mode solicited message that the ONU is sent, determine that the ONU enters doze mode；
If the OLT receives the hypophypnosis mode request information that the ONU is sent, it is slight to determine that the ONU enters
Sleep pattern；
If the OLT receives the deep sleep mode solicited message that the ONU is sent, determine that the ONU enters depth
Sleep pattern.
The Low-Power Instruction specifically includes：Doze mode instruction, hypophypnosis mode instruction, deep sleep mode refer to
It enables；And
After the OLT enters low-power consumption mode according to the strategy decision pre-established the ONU, low-power consumption is sent to the ONU
Instruction specifically includes：
If the OLT determines that the ONU enters doze mode, doze mode instruction is sent to the ONU；
If the OLT determines that the ONU enters hypophypnosis pattern, hypophypnosis mode instruction is sent to the ONU；
If the OLT determines that the ONU enters deep sleep mode, deep sleep mode instruction is sent to the ONU；And
For the ONU system equipments after receiving the Low-Power Instruction, the ONU optical modules for controlling the ONU enter low work(
Consumption pattern specifically includes：
If the ONU system equipments receive the doze mode instruction, the ONU optical modules entrance for controlling the ONU is beaten
Doze pattern；
If the ONU system equipments receive the hypophypnosis mode instruction, control the ONU optical modules of the ONU into
Enter hypophypnosis pattern；
If the ONU system equipments receive deep sleep mode instruction, control the ONU optical modules of the ONU into
Enter deep sleep mode.
Preferably, the Low-Power Instruction is carried in the GATE message that the OLT is sent to the ONU；And
The low-power consumption solicited message is carried in the GATE message that the ONU is sent to the OLT.
Further, after the ONU optical modules enter low-power consumption mode, further include：
If the ONU receives the information of terminal user's transmission, controls the ONU optical modules and exit the low-power consumption mould
Formula, and send revival notice to the OLT.
According to an aspect of the invention, there is provided a kind of passive optical network, including：Optical line terminal OLT and multiple
Optical network unit ONU；
The OLT goes out according to the strategy decision pre-established after one of ONU enters low-power consumption mode, is sent out to the ONU
Send Low-Power Instruction；
After receiving the Low-Power Instruction, the ONU optical modules for controlling the ONU enter the ONU system equipments of the ONU
Low-power consumption mode.
Wherein, the OLT includes：
Low-power consumption mode determining module, if for determining communicated with this OLT ONU according to the strategy pre-established
Into low-power consumption mode, then low-power consumption notice is exported；
Instruction sending module, after being notified in the low-power consumption for receiving the low-power consumption mode determining module output, to
The ONU into low-power consumption mode that the low-power consumption mode determining module determines sends Low-Power Instruction.
The low-power consumption mode specifically includes：Doze mode, hypophypnosis pattern, deep sleep mode；And it is described low
Power consumption mode determining module includes such as one of lower unit, or the arbitrary combination such as lower unit：
Doze mode unit is beaten for after the free time of the ONU is more than set period of time A, determining that the ONU enters
Doze pattern exports the low-power consumption notice；
Hypophypnosis mode unit, for after the free time of the ONU is more than set period of time B, determine the ONU into
Enter hypophypnosis pattern, exports the low-power consumption notice；
Deep sleep mode unit, for after the free time of the ONU is more than set period of time C, determine the ONU into
Enter deep sleep mode, exports the low-power consumption notice.
The low-power consumption solicited message specifically includes：Doze mode solicited message corresponding with the doze mode and institute
State the corresponding hypophypnosis mode request information of hypophypnosis pattern, deep sleep mode corresponding with the deep sleep mode
Solicited message；And the low-power consumption mode determining module further includes：
Low-power consumption solicited message receiving unit, for receiving the low-power consumption solicited message that the ONU is sent in the OLT
Afterwards, it determines that the ONU enters low-power consumption mode corresponding with the low-power consumption solicited message, and exports the low-power consumption notice.
The ONU includes：ONU system equipments and ONU optical modules；
The ONU system equipments receive OLT transmission Low-Power Instruction after, control the ONU optical modules enter it is low
Power consumption mode.
The low-power consumption mode specifically includes：Doze mode, hypophypnosis pattern, deep sleep mode；And it is described low
Power consumption instruction specifically includes：The instruction of corresponding with doze mode doze mode corresponding with the hypophypnosis pattern is slightly slept
Sleep mode instruction, deep sleep mode corresponding with deep sleep mode instruction；And
The ONU system equipments include：Command reception parsing module, optical module control module；
After described instruction receives the instruction that parsing module is used to receive OLT transmissions, if it is low-power consumption to parse the instruction
Instruction, then send analysis result to the optical module control module；
The optical module control module according to the Low-Power Instruction in the analysis result to the ONU optical modules for sending out
Corresponding low-power consumption mode control instruction is sent, the ONU optical modules is controlled and enters corresponding low-power consumption mode.
The low-power consumption mode control instruction specifically includes：Doze mode control instruction corresponding with doze mode and institute
State the corresponding hypophypnosis mode control instruction of hypophypnosis pattern, deep sleep mode corresponding with the deep sleep mode
Control instruction；And
The ONU optical modules include：MCU, laser and its driving circuit, photodiode, trans-impedance amplifier TIA, limit
Width amplifying circuit；
The MCU is for receiving the low-power consumption mode control instruction；If it is determined that the low-power consumption mode control instruction is
Doze mode control instruction then sends information to the driving circuit, controls the driving circuit and is cut to the laser and carries
The bias current and modulation electric current of confession；Or, however, it is determined that the low-power consumption mode control instruction is that deep sleep mode control refers to
Enable, then send information to the driving circuit, control the driving circuit be cut to bias current that the laser provides and
Electric current is modulated, and information is sent to the amplitude limiting amplifier circuit, controls the logical of amplitude limiting amplifier circuit cut-out and the TIA
Road；Or, however, it is determined that the low-power consumption mode control instruction is hypophypnosis mode control instruction, then is sent out to the driving circuit
It delivers letters breath, controls the driving circuit by the bias current provided for laser and modulation current reduction, and put to the amplitude limit
Big circuit sends information, and control reduces the electric current in the amplitude limiting amplifier circuit.
Further, the ONU system equipments further include：
Low-power consumption decision module determines to enter mould of dozing off after falling to 0 in the downlink data flow for determining this ONU
Formula sends doze mode notice；Alternatively, after the free time for determining this ONU is more than set period of time D, determine to enter light
Sleep pattern is spent, hypophypnosis pattern notification is sent；Alternatively, being more than set period of time E in the free time for determining this ONU
Afterwards, it determines to enter deep sleep mode, sends deep sleep mode notice；
Solicited message sending module, the notice for being sent according to the low-power consumption decision module send corresponding low work(
Consume solicited message.
Preferably, the ONU is additionally operable to after the information for receiving terminal user's transmission, controls the ONU optical modules and move back
Go out low-power consumption mode, and revival notice is sent to the OLT.
According to another aspect of the present invention, the optical line terminal OLT in a kind of passive optical network is additionally provided, including：
Low-power consumption mode determining module, for going out an ONU in the optical-fiber network according to the strategy decision pre-established
Into after low-power consumption mode, output low-power consumption notice；
Instruction sending module, after being notified in the low-power consumption for receiving the low-power consumption mode determining module output, to
The ONU into low-power consumption mode that the low-power consumption mode determining module determines sends Low-Power Instruction.
Wherein, the low-power consumption mode specifically includes：Doze mode, hypophypnosis pattern, deep sleep mode；And
The low-power consumption mode determining module includes such as one of lower unit, or the arbitrary combination such as lower unit：
Doze mode unit is beaten for after the free time of the ONU is more than set period of time A, determining that the ONU enters
Doze pattern exports the low-power consumption notice；
Hypophypnosis mode unit, for after the free time of the ONU is more than set period of time B, determine the ONU into
Enter hypophypnosis pattern, exports the low-power consumption notice；
Deep sleep mode unit, for after the free time of the ONU is more than set period of time C, determine the ONU into
Enter deep sleep mode, exports the low-power consumption notice.
Preferably, the low-power consumption mode determining module further includes：
Low-power consumption solicited message receiving unit, for receiving the low-power consumption solicited message that the ONU is sent in the OLT
Afterwards, it determines that the ONU enters low-power consumption mode corresponding with the low-power consumption solicited message, and exports the low-power consumption notice；
Wherein, the low-power consumption solicited message specifically includes：Doze mode solicited message corresponding with the doze mode,
Hypophypnosis mode request information corresponding with the hypophypnosis pattern, deep sleep corresponding with the deep sleep mode
Mode request information.
The Low-Power Instruction specifically includes：Doze mode instruction corresponding with the doze mode is slightly slept with described
The corresponding hypophypnosis mode instruction of sleep mode, deep sleep mode corresponding with deep sleep mode instruction；And institute
Instruction sending module is stated to specifically include：
Message generating module, it is raw after being notified in the low-power consumption for receiving the low-power consumption mode determining module output
At the GATE message that the ONU into low-power consumption mode determined to the low-power consumption mode determining module is sent, and will be corresponding
Low-Power Instruction be carried in the GATE message；
Message transmission module, the GATE message for generating the message generating module are sent.
According to another aspect of the present invention, a kind of optical network unit is additionally provided, including：ONU system equipments and ONU light
Module；
The ONU system equipments receive OLT transmission Low-Power Instruction after, control the ONU optical modules enter it is low
Power consumption mode.
Wherein, the low-power consumption mode specifically includes：Doze mode, hypophypnosis pattern, deep sleep mode；And
The Low-Power Instruction specifically includes：Doze mode corresponding with doze mode instructs, is corresponding with the hypophypnosis pattern
Hypophypnosis mode instruction, deep sleep mode corresponding with deep sleep mode instruction；And
The ONU system equipments include：Command reception parsing module, optical module control module；
After described instruction receives the instruction that parsing module is used to receive OLT transmissions, if it is low-power consumption to parse the instruction
Instruction, then send analysis result to the optical module control module；
The optical module control module according to the Low-Power Instruction in the analysis result to the ONU optical modules for sending out
Corresponding low-power consumption mode control instruction is sent, the ONU optical modules is controlled and enters corresponding low-power consumption mode.
Further, the ONU system equipments further include：
Low-power consumption decision module determines to enter mould of dozing off after falling to 0 in the downlink data flow for determining this ONU
Formula sends doze mode notice；Alternatively, after the free time for determining this ONU is more than set period of time D, determine to enter light
Sleep pattern is spent, hypophypnosis pattern notification is sent；Alternatively, being more than set period of time E in the free time for determining this ONU
Afterwards, it determines to enter deep sleep mode, sends deep sleep mode notice；
Solicited message sending module, the notice for being sent according to the low-power consumption decision module send corresponding low work(
Consume solicited message.
Further, the optical module control module is additionally operable to controlling the ONU optical modules into corresponding low-power consumption mould
After formula, if after the optical network unit receives the information that terminal user sends, controls the ONU optical modules and exit low-power consumption mould
Formula；And
The solicited message sending module is additionally operable to exit in the optical module control module control ONU optical modules low
After power consumption mode, revival notice is sent to the OLT.
The low-power consumption mode control instruction specifically includes：Doze mode control instruction corresponding with doze mode and institute
State the corresponding hypophypnosis mode control instruction of hypophypnosis pattern, deep sleep mode corresponding with the deep sleep mode
Control instruction；And
The ONU optical modules include：MCU, laser and its driving circuit, trans-impedance amplifier TIA, amplitude limiting amplifier circuit；
The MCU is for receiving the low-power consumption mode control instruction；If it is determined that the low-power consumption mode control instruction is
Doze mode control instruction then sends information to the driving circuit, controls the driving circuit and is cut to the laser and carries
The bias current and modulation electric current of confession；Or, however, it is determined that the low-power consumption mode control instruction is that deep sleep mode control refers to
Enable, then send information to the driving circuit, control the driving circuit be cut to bias current that the laser provides and
Electric current is modulated, and information is sent to the amplitude limiting amplifier circuit, controls the logical of amplitude limiting amplifier circuit cut-out and the TIA
Road；Or, however, it is determined that the low-power consumption mode control instruction is hypophypnosis mode control instruction, then is sent out to the driving circuit
It delivers letters breath, controls the driving circuit by the bias current provided for laser and modulation current reduction, and put to the amplitude limit
Big circuit sends information, and control reduces the electric current in the amplitude limiting amplifier circuit.
Preferably, the MCU is additionally operable to receive described after exiting low-power consumption mode control instruction, the ONU light is controlled
Module exits low-power consumption mode.
According to another aspect of the present invention, the ONU system equipments in a kind of optical network unit are additionally provided, including：Refer to
It enables and receives parsing module, optical module control module；
After described instruction receives the instruction that parsing module is used to receive OLT transmissions, if it is low-power consumption to parse the instruction
Instruction, then send analysis result to the optical module control module；
The optical module control module according to the Low-Power Instruction in the analysis result to the ONU optical modules for sending out
Corresponding low-power consumption mode control instruction is sent, the ONU optical modules is controlled and enters corresponding low-power consumption mode.
Wherein, the low-power consumption mode specifically includes：Doze mode, hypophypnosis pattern, deep sleep mode；And
The Low-Power Instruction specifically includes：Doze mode corresponding with doze mode instructs, is corresponding with the hypophypnosis pattern
Hypophypnosis mode instruction, deep sleep mode corresponding with deep sleep mode instruction；And
The ONU system equipments further include：
Low-power consumption decision module determines to enter mould of dozing off after falling to 0 in the downlink data flow for determining this ONU
Formula sends doze mode notice；Alternatively, after the free time for determining this ONU is more than set period of time D, determine to enter light
Sleep pattern is spent, hypophypnosis pattern notification is sent；Alternatively, being more than set period of time E in the free time for determining this ONU
Afterwards, it determines to enter deep sleep mode, sends deep sleep mode notice；
Solicited message sending module, the notice for being sent according to the low-power consumption decision module send corresponding low work(
Consume solicited message.
The optical module control module is additionally operable to after controlling the ONU optical modules and entering corresponding low-power consumption mode, if
After the optical network unit receives the information of terminal user's transmission, controls the ONU optical modules and exit low-power consumption mode；And
The solicited message sending module is additionally operable to exit in the optical module control module control ONU optical modules low
After power consumption mode, revival notice is sent to the OLT.
According to another aspect of the present invention, the ONU optical modules in a kind of optical network unit are additionally provided, including：MCU,
Laser and its driving circuit, trans-impedance amplifier TIA, amplitude limiting amplifier circuit；
The MCU is for receiving the low-power consumption mode control instruction；The low-power consumption mode control instruction specifically includes：
Doze mode control instruction corresponding with doze mode, hypophypnosis scheme control corresponding with the hypophypnosis pattern refer to
It enables, deep sleep mode control instruction corresponding with the deep sleep mode；
The MCU is if it is determined that the low-power consumption mode control instruction is doze mode control instruction, then to driving electricity
Road sends information, controls the driving circuit and is cut to the bias current and modulation electric current that the laser provides；Alternatively,
The MCU is if it is determined that the low-power consumption mode control instruction is deep sleep mode control instruction, then to the drive
Dynamic circuit sends information, controls the driving circuit and is cut to the bias current of the laser offer and modulates electric current, and to
The amplitude limiting amplifier circuit sends information, controls the access of the amplitude limiting amplifier circuit cut-out and the TIA；Alternatively,
The MCU is if it is determined that the low-power consumption mode control instruction is hypophypnosis mode control instruction, then to the drive
Dynamic circuit sends information, controls the driving circuit by the bias current provided for laser and modulation current reduction, and to institute
It states amplitude limiting amplifier circuit and sends information, control reduces the electric current in the amplitude limiting amplifier circuit.
Further, the MCU be additionally operable to receive it is described exit low-power consumption mode control instruction after, control the ONU light
Module exits low-power consumption mode.
In technical solution provided in an embodiment of the present invention, OLT is judging that ONU can enter according to the strategy pre-established
After low-power consumption mode, from OLT to ONU send Low-Power Instruction, instruction ONU enter low-power consumption mode, to OLT can control it is whole
The case where ONU in a passive optical network, avoid the occurrence of confusion；And ONU enters low-power consumption mould according to instruction control ONU optical modules
After formula, or the transmitting that laser temporarily ceases optical signal is closed, or the output of cut-out light-receiving component temporarily ceases optical signal
It receives, to achieve the purpose that save power consumption, energy saving.
And ONU is being received after the upstream data that terminal user sends, and can voluntarily be revived from low-power consumption mode
Come, concurrent notification informs OLT, hence into normal working condition.
Description of the drawings
Fig. 1 is the passive optical network schematic diagram of the prior art；
Fig. 2 be the prior art passive optical network in send downlink data schematic diagram；
Fig. 3 be the prior art passive optical network in send upstream data schematic diagram；
Fig. 4 is the passive optical network schematic diagram of the embodiment of the present invention；
Fig. 5 is the passive optical network Low-power-consumptiocontrol control method flow of the embodiment of the present invention；
Fig. 6 is that the ONU of the embodiment of the present invention sends the method flow diagram of low-power consumption solicited message to OLT；
Fig. 7 is the OLT internal structure block diagrams of the embodiment of the present invention；
Fig. 8 is the internal structure block diagram of the ONU system equipments in the ONU of the embodiment of the present invention；
Fig. 9 is the internal circuit block diagram of the ONU optical modules in the ONU of the embodiment of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, referring to the drawings and preferred reality is enumerated
Example is applied, the present invention is described in more detail.However, it is necessary to illustrate, many details listed in specification are only to be
Making reader, there are one thorough explanations to one or more aspects of the present invention, even without these specific details can also
Realize the aspects of the invention.
The terms such as " module " used in this application, " system " be intended to include with computer-related entity, such as it is but unlimited
In hardware, firmware, combination thereof, software or software in execution.For example, module can be, it is not limited to：Processing
Process, processor, object, executable program, the thread of execution, program and/or the computer run on device.
The present inventor is it is considered that since the ONU downlink datas received are sent by OLT in passive optical network
, and be the period that ONU distribution sends upstream data by OLT, therefore, OLT is known that each ONU receives downlink data
Period and send upstream data period；Therefore, OLT can not have to receive according to the strategy pre-established in ONU
Downlink data does not send control ONU in the period of upstream data yet and enters low-power consumption mode, for example, control ONU closes laser
Device or receiver；To reduce the power consumption of ONU optical modules, the power consumption of ONU is also just reduced, has been achieved the purpose that energy saving.
The technical solution for embodiment that the invention will now be described in detail with reference to the accompanying drawings.The passive optical network of the embodiment of the present invention is such as
Shown in Fig. 4, including：OLT401, POS402, multiple ONU 403.
OLT401 is connected by optical fiber with POS402, and each ONU403 is connected by optical fiber with POS402, to each
ONU403 realizes the communication with OLT401 by optical fiber and POS402.
Low-power-consumptiocontrol control method in the passive optical network of the embodiment of the present invention, i.e. OLT401 control ONU403 enter low-power consumption
The method of pattern, flow chart is as shown in figure 5, include the following steps：
S501：If OLT401 according to the strategy decision pre-established go out an ONU 403 in passive optical network enter it is low
After power consumption mode, Low-Power Instruction is sent to the ONU, which can specifically carry in GATE message（Window message）
Middle transmission.
The strategy pre-established in OLT401 can be：An ONU 403 in OLT401 determines passive optical network
Free time be more than set period of time, then determine that the ONU enters low-power consumption mode.
Preferably, low-power consumption mode may include：Doze mode；
Further, low-power consumption mode can also include：Hypophypnosis pattern, deep sleep mode；
The strategy pre-established in OLT401 can specifically include：
OLT401 then determines that the ONU enters doze mode if it is determined that the free time of the ONU is more than set period of time A；
Further, the strategy pre-established in OLT401 can also include：
OLT401 then determines that the ONU enters hypophypnosis if it is determined that the free time of the ONU is more than set period of time B
Pattern；
OLT401 then determines that the ONU enters deep sleep if it is determined that the free time of the ONU is more than set period of time C
Pattern.
Above-mentioned set period of time A, set period of time B, set period of time C those skilled in the art can be according to practical feelings
Condition is arranged.For example, setting set period of time A is 1s, set period of time B is 3s, set period of time C is 6s.
Obviously, other strategies can be arranged in those skilled in the art according to actual conditions.
In this step, after OLT401 determines the low-power consumption mode of ONU, corresponding Low-Power Instruction is sent to the ONU；
Preferably, Low-Power Instruction may include：Doze mode instruction corresponding with doze mode；Further, Low-Power Instruction may be used also
To include：Hypophypnosis mode instruction corresponding with hypophypnosis pattern, deep sleep mode corresponding with deep sleep mode
Instruction.
Specifically, if OLT401 determines that the ONU enters doze mode, doze mode instruction is sent to the ONU；
If OLT401 determines that the ONU enters hypophypnosis pattern, hypophypnosis mode instruction is sent to the ONU；
If OLT401 determines that the ONU enters deep sleep mode, deep sleep mode instruction is sent to the ONU.
Above-mentioned Low-Power Instruction can specifically carry in the GATE message that OLT401 is sent to the ONU.Specifically, exist
After OLT401 determines that the ONU enters low-power consumption mode, OLT401 carries low in each GATE message sent to the ONU
Power consumption instructs, the revival notice until receiving ONU transmissions.
S502：ONU403 receive OLT401 transmission Low-Power Instruction after, control this ONU ONU optical modules enter it is low
Power consumption mode.
Specifically, after ONU403 receives the Low-Power Instructions of OLT401 transmissions, the ONU system equipments of ONU403 are to ONU
Optical module sends corresponding low-power consumption mode control instruction, and the ONU optical modules for controlling this ONU enter corresponding low-power consumption mode.
Low-power consumption mode control instruction may include：Doze mode control instruction corresponding with doze mode, with it is described light
Spend the corresponding hypophypnosis mode control instruction of sleep pattern, deep sleep mode corresponding with deep sleep mode control
Instruction.
If the Low-Power Instruction that ONU403 is received instructs for doze mode, ONU system equipments are beaten to the transmission of ONU optical modules
Doze mode control instruction；After ONU optical modes MCU in the block receives doze mode control instruction, to ONU optical modes driving electricity in the block
Road sends information, and control driving circuit is cut to the bias current and modulation electric current of laser offer, to which ONU optical modules enter
Doze mode；
If the Low-Power Instruction that ONU403 is received is hypophypnosis mode instruction, ONU system equipments are sent out to ONU optical modules
Send hypophypnosis mode control instruction；After ONU optical modes MCU in the block receives hypophypnosis mode control instruction, to the drive
Dynamic circuit sends information, controls the driving circuit by the bias current provided for laser and modulation current reduction, and to institute
It states amplitude limiting amplifier circuit and sends information, control reduces the electric current in the amplitude limiting amplifier circuit；
If the Low-Power Instruction that ONU403 is received instructs for deep sleep mode, ONU system equipments are sent out to ONU optical modules
Send deep sleep mode control instruction；After ONU optical modes MCU in the block receives deep sleep mode control instruction, to the drive
Dynamic circuit sends information, controls the driving circuit and is cut to the bias current of the laser offer and modulates electric current, and to
The amplitude limiting amplifier circuit sends information, controls the access of the amplitude limiting amplifier circuit cut-out and the TIA.
Above-mentioned low-power consumption mode control instruction can pass through iic bus or other serial or parallels by ONU system equipments
Bus is sent to ONU optical modules；It can also be connected with ONU optical modes MCU in the block by it by the MCU in ONU system equipments
General input/output port pin（GPIO pin）, low-power consumption mode control instruction is sent to ONU optical modules.
That is, when the low-power consumption mode is specially doze mode, i.e. the MCU of ONU optical modules, which is received, to doze off
After mode control instruction, control ONU optical modes driving circuit in the block is cut to the bias current and modulation electric current of laser offer；
When the low-power consumption mode is specially deep sleep mode, i.e. the MCU of ONU optical modules receives deep sleep mould
After formula control instruction, control ONU optical modes driving circuit in the block is cut to the bias current and modulation electric current of laser offer, and
And control the access of ONU optical modes amplitude limiting amplifier circuit cut-out and trans-impedance amplifier TIA in the block；
When the low-power consumption mode is specially hypophypnosis pattern, i.e. the MCU of ONU optical modules receives hypophypnosis mould
After formula control instruction, control ONU optical modes driving circuit in the block is by the bias current provided for laser and modulates current reduction,
And control the electric current reduced in ONU optical modes amplitude limiting amplifier circuit in the block.
S503：After ONU403 receives the information of terminal user's transmission, the ONU optical modules for controlling this ONU exit low-power consumption
Pattern, into normal mode of operation.
After ONU optical modules enter low-power consumption mode, if ONU403 receives the information of terminal user's transmission,
The ONU system equipments of ONU403 are sent to ONU optical modules wakes up control instruction, and the MCU of ONU optical modules receives wake-up control and refers to
After order, low-power consumption mode is exited, into normal mode of operation, that is, ONU optical modes driving circuit in the block is controlled and is provided for laser
Normal bias current and modulation electric current, the electric current controlled in ONU optical modes amplitude limiting amplifier circuit in the block revert to normal electricity
Stream, and amplitude limiting amplifier circuit normally receives the electric current of the TIA outputs.
S504：ONU403 sends revival notice after control ONU optical modules exit low-power consumption mode, to OLT401.
ONU403 sends revival notice after control ONU optical modules exit low-power consumption mode, to OLT401, informs OLT401
This ONU has logged out low-power consumption mode, into normal mode of operation.Revival that ONU403 is sent to OLT401 notice specifically can be with
Carrying is sent in GATE message.
Further, the strategy pre-established in OLT401 can also include：If this OLT receives the low-power consumption of ONU transmissions
Solicited message then determines that the ONU enters low-power consumption mode.Specific flow is as shown in fig. 6, include the following steps：
S601：ONU403 is according to the rule pre-established, after determining that this ONU enters low-power consumption mode, is sent to OLT401
Low-power consumption solicited message.
Specifically, low-power consumption solicited message may include：Doze mode solicited message corresponding with doze mode, with it is slight
The corresponding hypophypnosis mode request information of sleep pattern, deep sleep mode solicited message corresponding with deep sleep mode.
The rule pre-established in ONU403 can be as follows：
ONU then determines that this ONU enters the low-power consumption mould of doze mode if it is determined that the downlink data flow of this ONU falls to 0
Formula sends doze mode solicited message to OLT401；
ONU then determines that this ONU enters hypophypnosis pattern if it is determined that the free time of this ONU is more than set period of time D
Low-power consumption mode, to OLT401 send hypophypnosis mode request information；
ONU then determines that this ONU enters deep sleep mode if it is determined that the free time of this ONU is more than set period of time E
Low-power consumption mode, to the OLT send deep sleep mode solicited message.
Obviously, other rules may be set according to actual conditions in those skilled in the art.Above-mentioned set period of time D,
Set period of time E those skilled in the art can be arranged according to actual conditions.For example, when setting set period of time D is 3s, sets
Between section E be 6s.
The low-power consumption solicited message that ONU403 is sent can specifically be carried is sent to OLT401 in GATE message.
S602：After OLT401 receives the low-power consumption solicited message of ONU403 transmissions, determine that the ONU enters low-power consumption mould
Formula.
Specifically, it is corresponding to determine that the ONU enters after the low-power consumption solicited message for receiving ONU403 transmissions by OLT401
Low-power consumption mode：
If OLT401 receives the doze mode solicited message of ONU403 transmissions, determine that the ONU enters doze mode
Low-power consumption mode；
If OLT401 receives the hypophypnosis mode request information of ONU403 transmissions, determines that the ONU enters and slightly sleep
The low-power consumption mode of sleep mode；
If OLT401 receives the deep sleep mode solicited message of ONU403 transmissions, determine that the ONU enters depth and sleeps
The low-power consumption mode of sleep mode.
S603：OLT401 sends Low-Power Instruction after determining that ONU403 enters low-power consumption mode, to the ONU.
Specifically, OLT401 sends corresponding low-power consumption to the ONU and refers to after determining that ONU403 enters low-power consumption mode
It enables.
After OLT401 determines that ONU403 enters low-power consumption mode, to the ONU send the method for corresponding Low-Power Instruction with
Related content is identical in above-mentioned steps 501, and details are not described herein again；
Each step after ONU403 transmission Low-Power Instructions is identical as above-mentioned steps S502-S504, also repeats no more herein.
The internal structure block diagram of above-mentioned optical line terminal OLT 401, as shown in fig. 7, comprises：Low-power consumption mode determines mould
Block 701, instruction sending module 702.
Low-power consumption mode determining module 701 is used to go out one in passive optical network according to the strategy decision pre-established
After ONU enters low-power consumption mode, output low-power consumption notice；
Instruction sending module 702 is used for after receiving the low-power consumption notice of the output of low-power consumption mode determining module 701, to
The ONU into low-power consumption mode that low-power consumption mode determining module 701 determines sends Low-Power Instruction.
Specifically, the low-power consumption mode specifically includes：Doze mode, hypophypnosis pattern, deep sleep mode；With
And low-power consumption mode determining module 701 includes such as one of lower unit, or the arbitrary combination such as lower unit：
Doze mode unit 711, for after the free time of the ONU is more than set period of time A, determine the ONU into
Enter doze mode, exports the low-power consumption notice；
Hypophypnosis mode unit 712 is somebody's turn to do for after the free time of the ONU is more than set period of time B, determining
ONU enters hypophypnosis pattern, exports the low-power consumption notice；
Deep sleep mode unit 713 is somebody's turn to do for after the free time of the ONU is more than set period of time C, determining
ONU enters deep sleep mode, exports the low-power consumption notice.
Further, low-power consumption mode determining module 701 may also include：
Low-power consumption solicited message receiving unit 714, for receiving the low-power consumption request that the ONU is sent in the OLT
After information, determine that the ONU enters low-power consumption mode corresponding with the low-power consumption solicited message, and it is logical to export the low-power consumption
Know；Wherein, the low-power consumption solicited message specifically includes：Doze mode solicited message corresponding with the doze mode and institute
State the corresponding hypophypnosis mode request information of hypophypnosis pattern, deep sleep mode corresponding with the deep sleep mode
Solicited message.
Specifically, the Low-Power Instruction may include：The instruction of corresponding with doze mode doze mode, with it is described
The corresponding hypophypnosis mode instruction of hypophypnosis pattern, deep sleep mode corresponding with deep sleep mode instruction；
Then instruction sending module 702 can specifically include：
Message generating module 721, after being notified in the low-power consumption for receiving the output of low-power consumption mode determining module 701,
The GATE message that the ONU into low-power consumption mode determined to low-power consumption mode determining module 701 is sent is generated, and will be corresponding
Low-Power Instruction be carried in the GATE message；
Message transmission module 722, the GATE message for generating the message generating module are sent.
The internal structure block diagram of above-mentioned optical network unit ONU 403, as shown in figure 8, including：ONU system equipments 801,
ONU optical modules 802.
For ONU system equipments 801 after the Low-Power Instruction for receiving OLT transmissions, control ONU optical modules 802 enter low work(
Consumption pattern.
Wherein, ONU system equipments 801 specifically include：Command reception parsing module 811, optical module control module 812；
After command reception parsing module 811 is used to receive the instruction of OLT transmissions, refer to for low-power consumption if parsing the instruction
It enables, then sends analysis result to optical module control module 812；
Optical module control module 812 according to the Low-Power Instruction in the analysis result to the ONU optical modules for sending out
Corresponding low-power consumption mode control instruction, control ONU optical modules 802 is sent to enter corresponding low-power consumption mode.
Wherein, the low-power consumption mode specifically includes：Doze mode, hypophypnosis pattern, deep sleep mode；And
The Low-Power Instruction specifically includes：Doze mode corresponding with doze mode instructs, is corresponding with the hypophypnosis pattern
Hypophypnosis mode instruction, deep sleep mode corresponding with deep sleep mode instruction.
Further, ONU system equipments further include：Low-power consumption decision module 813, solicited message sending module 814.
Low-power consumption decision module 813 is used for after the downlink data flow for determining this ONU falls to 0, is determined to enter and be dozed off
Pattern sends doze mode notice；Alternatively, after the free time for determining this ONU is more than set period of time D, determine to enter
Hypophypnosis pattern sends hypophypnosis pattern notification；Alternatively, being more than set period of time E in the free time for determining this ONU
Afterwards, it determines to enter deep sleep mode, sends deep sleep mode notice；
The notice that solicited message sending module 814 is used to be sent according to low-power consumption decision module 813 sends corresponding low work(
Consume solicited message.Wherein, low-power consumption solicited message specifically includes：Doze mode solicited message corresponding with doze mode, with it is light
Spend the corresponding hypophypnosis mode request information of sleep pattern, deep sleep mode corresponding with deep sleep mode request letter
Breath.
Further, optical module control module 812 is additionally operable to enter corresponding low-power consumption mode in control ONU optical modules 802
Afterwards, if the optical network unit receive terminal user transmission information after, exit low-power consumption mode control to ONU optical modules 802
System instruction, control ONU optical modules 802 exit low-power consumption mode；And
Solicited message sending module 814 is additionally operable to exit low work(in the control ONU of optical module control module 812 optical modules 802
After consumption pattern, revival notice is sent to the OLT.
As shown in figure 9, ONU optical modules 802 include：MCU（Microprogrammed Control Unit, microprogram
Controller）921, laser 922 and its driving circuit 923, photodiode 924, trans-impedance amplifier TIA925, limited range enlargement electricity
Road 926.
In general, ONU optical modules include laser emission element, to emit uplink optical signal；Further include in ONU optical modules
Laser pick-off unit, to receive the downlink optical signal of OLT transmissions.
It is generally included in laser emission element：Laser and its driving circuit, after driving circuit receives electric signal, root
Emit the laser of specific wavelength as uplink optical signal according to laser light emitting light source in the electric signal driving laser of reception.
It is generally included in laser pick-off unit：Light-receiving component and amplitude limiting amplifier circuit；Light-receiving component generally includes：
Photodiode, trans-impedance amplifier TIA.Photodiode exports corresponding response current after detecting downlink optical signal and arrives
TIA, TIA then export corresponding differential electric signal；The differential signal is sent to amplitude limiting amplifier circuit, and amplitude limiting amplifier circuit is by the difference
Sub-signal carries out limited range enlargement, exports corresponding electric signal.
ONU optical modes MCU in the block can be logical by iic bus or other universal serial bus or parallel bus and driving circuit
Letter, to control the parameter of driving circuit or configuration driven circuit；
ONU optical modes MCU in the block can also pass through iic bus or other universal serial bus or parallel bus and limited range enlargement electricity
Road communicates, to control amplitude limiting amplifier circuit, or the parameter of configuration amplitude limiting amplifier circuit.
In ONU optical modules 802 provided in an embodiment of the present invention：
For MCU921 after receiving low-power consumption mode control instruction, it is specific that control ONU optical modules 802 enter low-power consumption mode
Can be：
MCU921 receives the low-power consumption mode control instruction；If it is determined that the low-power consumption mode control instruction is mould of dozing off
Formula control instruction, then send information to driving circuit 923, and control driving circuit 923 is cut to the biased electrical of the offer of laser 922
Stream and modulation electric current, to control the low-power consumption mode that ONU optical modules 802 enter doze mode；
Alternatively, MCU921 is if it is determined that the low-power consumption mode control instruction is deep sleep mode control instruction, then to drive
It moving circuit 923 and sends information, control driving circuit 923 is cut to the bias current of the offer of laser 922 and modulates electric current, and to
Amplitude limiting amplifier circuit 926 sends information, the access of control amplitude limiting amplifier circuit 926 cut-out and TIA925, to control ONU optical modes
Block 802 enters the low-power consumption mode of deep sleep mode；
Alternatively, MCU921 is if it is determined that the low-power consumption mode control instruction is hypophypnosis mode control instruction, then to drive
Dynamic circuit 923 sends information, and control driving circuit 923 is by the bias current provided for laser 922 and modulates current reduction, and
Information is sent to amplitude limiting amplifier circuit 926, control reduces the electric current in amplitude limiting amplifier circuit 926.
Further, after receiving and exiting low-power consumption mode control instruction, control ONU optical modules 802 exit low MCU921
Power consumption mode：MCU921 control driving circuits 923 are the normal bias current and modulation electric current that laser 922 provides,
MCU921 control amplitude limiting amplifier circuits 926 normally receive the output current of TIA925, and control the electricity in amplitude limiting amplifier circuit 926
Stream restores normal.
In fact, since the ONU times for sending optical signal are to be controlled to arrange by OLT, in order to allow ONU to save work(
The ONU optical modules that consumption simply, directly cannot voluntarily control this ONU enter low-power consumption mode, if ONU is advanced into low work(certainly
Consumption pattern can then cause the confusion of entire passive optical network.Based on this, in technical solution provided in an embodiment of the present invention,
OLT after judging that ONU can enter low-power consumption mode, sends low-power consumption to ONU from OLT and refers to according to the strategy pre-established
It enables, instruction ONU enters low-power consumption mode, so that the case where OLT can control the ONU in entire passive optical network, avoids the occurrence of
It is chaotic；And after ONU enters low-power consumption mode according to instruction control ONU optical modules, or close laser and temporarily cease optical signal
Transmitting, or the output of cut-out light-receiving component temporarily cease the reception of optical signal, to reach saving power consumption, energy saving mesh
's.
And ONU is being received after the upstream data that terminal user sends, and can voluntarily be revived from low-power consumption mode
Come, concurrent notification informs OLT, hence into normal working condition.
One of ordinary skill in the art will appreciate that implement the method for the above embodiments be can be with
Relevant hardware is instructed to complete by program, which can be stored in a computer read/write memory medium, such as：
ROM/RAM, magnetic disc, CD etc..
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (4)
1. the ONU optical modules in a kind of optical network unit, including：MCU, laser and its driving circuit, trans-impedance amplifier TIA,
Amplitude limiting amplifier circuit；
The MCU is for receiving low-power consumption mode control instruction；The low-power consumption mode control instruction specifically includes：With mould of dozing off
The corresponding doze mode control instruction of formula, hypophypnosis mode control instruction corresponding with hypophypnosis pattern and deep sleep
The corresponding deep sleep mode control instruction of pattern；
The MCU is if it is determined that the low-power consumption mode control instruction is doze mode control instruction, then to driving circuit hair
It delivers letters breath, controls the driving circuit and be cut to the bias current and modulation electric current that the laser provides；Alternatively,
The MCU is if it is determined that the low-power consumption mode control instruction is deep sleep mode control instruction, then to driving electricity
Road sends information, controls the driving circuit and is cut to the bias current and modulation electric current that the laser provides, and to described
Amplitude limiting amplifier circuit sends information, controls the access of the amplitude limiting amplifier circuit cut-out and the TIA；Alternatively,
The MCU is if it is determined that the low-power consumption mode control instruction is hypophypnosis mode control instruction, then to driving electricity
Road sends information, controls the driving circuit by the bias current provided for laser and modulation current reduction, and to the limit
Width amplifying circuit sends information, and control reduces the electric current in the amplitude limiting amplifier circuit.
2. ONU optical modules as described in claim 1, which is characterized in that
The MCU is additionally operable to receive exit low-power consumption mode control instruction after, control the ONU optical modules and exit low-power consumption mould
Formula.
3. ONU optical modules as described in claim 1, it is characterised in that：
If it is determined that the free time of the ONU, which is more than set period of time A, determines that the ONU enters doze mode；
If it is determined that the free time of the ONU, which is more than set period of time B, determines that the ONU enters hypophypnosis pattern；
If it is determined that the free time of the ONU, which is more than set period of time C, determines that the ONU enters deep sleep mode.
4. ONU optical modules as claimed in claim 3, it is characterised in that：
If it is determined that the downlink data flow of this ONU falls to 0, then doze mode solicited message is sent to OLT；
If it is determined that the free time of this ONU is more than set period of time D, then hypophypnosis mode request letter is sent to the OLT
Breath；
If it is determined that the free time of this ONU is more than set period of time E, then deep sleep mode request letter is sent to the OLT
Breath.
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| CN201510788610.7A CN105323662B (en) | 2012-10-12 | 2012-10-12 | Passive optical network and its Low-power-consumptiocontrol control method and optical network unit |
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| CN105049115B (en) * | 2015-08-17 | 2017-09-19 | 上海斐讯数据通信技术有限公司 | A kind of dormancy method and system based on EPON |
| CN107786281A (en) * | 2017-11-03 | 2018-03-09 | 青岛海信宽带多媒体技术有限公司 | Optical module and its power consumption control method, device |
| CN108111318A (en) * | 2017-12-28 | 2018-06-01 | 国网河南省电力公司信息通信公司 | Towards the energy communication service route planning algorithm of equiblibrium mass distribution |
| CN108429585B (en) * | 2018-03-02 | 2021-06-01 | 青岛海信宽带多媒体技术有限公司 | Optical module control method and device and optical module |
| CN111490824B (en) * | 2020-03-11 | 2021-11-12 | 普联技术有限公司 | Energy-saving method and device for optical communication equipment, optical communication equipment and storage medium |
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| WO2008037178A1 (en) * | 2006-09-30 | 2008-04-03 | Huawei Technologies Co., Ltd. | The optical network unit and its accessing method, the optical line terminal and the passive optical network system |
| CN101794169A (en) * | 2010-03-08 | 2010-08-04 | 北京航空航天大学 | Method for controlling energy consumption of cluster system based on changing control mode |
| CN101877611A (en) * | 2009-04-30 | 2010-11-03 | 华为技术有限公司 | Method for reducing consumption of passive optical network line, optical network unit device and terminal |
| CN202385241U (en) * | 2011-12-13 | 2012-08-15 | 青岛海信宽带多媒体技术有限公司 | Optical module for symmetrical 10-gigabit Ethernet passive optical network (EPON) system |
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| CN102131132A (en) * | 2010-11-04 | 2011-07-20 | 华为技术有限公司 | Energy-saving method and equipment for passive optical network (PON) |
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| WO2008037178A1 (en) * | 2006-09-30 | 2008-04-03 | Huawei Technologies Co., Ltd. | The optical network unit and its accessing method, the optical line terminal and the passive optical network system |
| CN101877611A (en) * | 2009-04-30 | 2010-11-03 | 华为技术有限公司 | Method for reducing consumption of passive optical network line, optical network unit device and terminal |
| CN101794169A (en) * | 2010-03-08 | 2010-08-04 | 北京航空航天大学 | Method for controlling energy consumption of cluster system based on changing control mode |
| CN202385241U (en) * | 2011-12-13 | 2012-08-15 | 青岛海信宽带多媒体技术有限公司 | Optical module for symmetrical 10-gigabit Ethernet passive optical network (EPON) system |
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