CN102932697B - EPON and Low-power-consumptiocontrol control method thereof and optical network unit - Google Patents

EPON and Low-power-consumptiocontrol control method thereof and optical network unit Download PDF

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CN102932697B
CN102932697B CN201210385637.8A CN201210385637A CN102932697B CN 102932697 B CN102932697 B CN 102932697B CN 201210385637 A CN201210385637 A CN 201210385637A CN 102932697 B CN102932697 B CN 102932697B
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onu
low
power consumption
mode
instruction
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CN102932697A (en
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郑龙
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Hisense Broadband Multimedia Technology Co Ltd
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Hisense Broadband Multimedia Technology Co Ltd
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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
    • 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

The invention discloses a kind of EPON and Low-power-consumptiocontrol control method thereof and optical network unit, described method comprises: after OLT enters low-power consumption mode according to this ONU of the strategy decision pre-established, and sends Low-Power Instruction to this ONU; The ONU system equipment of this ONU is after receiving described Low-Power Instruction, and the ONU optical module controlling this ONU enters low-power consumption mode.Because OLT enters low-power consumption mode according to the strategy instruction ONU pre-established, thus OLT can control the situation of the ONU in whole EPON, avoids causing confusion; After ONU optical module enters low-power consumption mode, the object of saving power consumption, energy savings can be reached.

Description

EPON and Low-power-consumptiocontrol control method thereof and optical network unit
Technical field
The present invention relates to Fibre Optical Communication Technology, particularly relate to a kind of EPON and Low-power-consumptiocontrol control method thereof and optical network unit.
Background technology
Current domestic market and international market, the optical fiber communication direction of merging with multiple business with a large bandwidth and at a high rate has started application; In numerous solutions, the appearance of fiber to the home (FTTH) is just considered to the ultimate solution of broadband access.Domestic market is large-area applications.
And in the numerous scheme of FTTH, GPON(GigabitPassiveOpticalNetwork, gigabit passive optical network) the maximum 2.5Gbps that reaches of transmission rate, and support multiple business, comprise ATM, Ethernet, TDM, CATV, can be described as the PON technology that current function is the most perfect, be also a kind of very economical, towards the network access mode in broadband, therefore, GPON network receives much concern, and becomes the soft exchange mode of current main flow.Along with the extensive use of GPON network, the ONU optical module in GPON network also gets a lot of applications.
In GPON network as shown in Figure 1, OLT(OpticalLineTerminator, optical line terminal) be usually arranged on the central office of the access net system of optical fiber telecommunications system, OLT is responsible for that the electrical signal data in switch is converted into optical signal data and sends, and receive the outside light signal sent, be translated into the signal of telecommunication and flow to switch.OLT is by ODN(light feeder network) and ONU(opticalnetunit, optical network unit) be connected, ONU is arranged on local side usually, i.e. user side or building, generally includes ONU optical module and ONU system equipment in an ONU; POS(PassiveOpticalSplitter, passive optical splitters) or be called for short Splitter(optical splitter), generally have 2N to divide equally port, if the light intensity of input port is 1, then the light intensity of each output port is 1/N.For a multi-plexing light accessing system, be generally that 1 OLT is placed on telecommunication center office, then by optical splitter, be at least generally 1 point 32, or 1 point 64 even 1 point 128, namely 1 OLT is with 32 or 64 or 128 ONU.
As shown in Figure 2, OLT sends downlink data to ONU in a broadcast manner; As shown in Figure 3, ONU is with TDMA(TimeDivisionMultipleAddress, time division multiplexing) mode sends upstream data to OLT, and the timeslice that ONU sends upstream data is specified by OLT.
The present inventor finds, in actual applications, along with the increase of ONU, network institute wasted work consumption is increasing, and energy source consumption is more; Therefore, there is the demand reducing ONU power consumption in prior art.
Summary of the invention
The embodiment provides a kind of EPON and Low-power-consumptiocontrol control method thereof and optical network unit, in order to reduce the power consumption of ONU, energy savings.
According to an aspect of the present invention, provide Low-power-consumptiocontrol control method in a kind of EPON, wherein, described EPON comprises: optical line terminal OLT and multiple optical network unit ONU; Described method comprises:
For one of them ONU, after described OLT enters low-power consumption mode according to this ONU of the strategy decision pre-established, send Low-Power Instruction to this ONU;
The ONU system equipment of this ONU is after receiving described Low-Power Instruction, and the ONU optical module controlling this ONU enters low-power consumption mode.
Wherein, described strategy comprises:
Receive the low-power consumption solicited message of described ONU transmission at described OLT after, determine that this ONU enters low-power consumption mode; Or
Described OLT determines that the free time of this ONU exceedes setting-up time section, then determine that this ONU enters low-power consumption mode.
Described low-power consumption mode is specially doze mode, and described ONU optical module enters low-power consumption mode and is specially:
Drive circuit in described ONU optical module is cut to the bias current and modulated current that laser provides; Or,
Described low-power consumption mode is specially deep sleep mode, and described ONU optical module enters low-power consumption mode and is specially:
Drive circuit in described ONU optical module is cut to the bias current and modulated current that laser provides, and the amplitude limiting amplifier circuit in described ONU optical module cuts off the path with trans-impedance amplifier TIA; Or,
Described low-power consumption mode is specially hypophypnosis pattern, and described ONU optical module enters low-power consumption mode and is specially:
The bias current provided for laser and modulated current reduce by the drive circuit in described ONU optical module, and reduce the electric current in the amplitude limiting amplifier circuit in described ONU optical module.
Described low-power consumption mode specifically comprises: doze mode, hypophypnosis pattern, deep sleep mode; And
Described OLT determines that the free time of this ONU exceedes setting-up time section, then determine that this ONU enters low-power consumption mode and specifically comprises:
If described OLT determines that the free time of this ONU exceedes setting-up time section A, then determine that this ONU enters doze mode;
If described OLT determines that the free time of this ONU exceedes setting-up time section B, then determine that this ONU enters hypophypnosis pattern;
If described OLT determines that the free time of this ONU exceedes setting-up time section C, then determine this ONU penetration depth sleep pattern.
Described low-power consumption solicited message specifically comprises: doze mode solicited message, hypophypnosis mode request information, deep sleep mode solicited message; And
Receive the low-power consumption solicited message of described ONU transmission at described OLT before, also comprise:
If described ONU determines that the downlink data flow of this ONU drops to 0, then send doze mode solicited message to described OLT;
If described ONU determines that the free time of this ONU exceedes setting-up time section D, then send hypophypnosis mode request information to described OLT;
If described ONU determines that the free time of this ONU exceedes setting-up time section E, then send deep sleep mode solicited message to described OLT; And
Described OLT enters low-power consumption mode according to this ONU of the strategy decision pre-established and specifically comprises:
If described OLT receives the doze mode solicited message that described ONU sends, then determine that this ONU enters doze mode;
If described OLT receives the hypophypnosis mode request information that described ONU sends, then determine that this ONU enters hypophypnosis pattern;
If described OLT receives the deep sleep mode solicited message that described ONU sends, then determine this ONU penetration depth sleep pattern.
Described Low-Power Instruction specifically comprises: doze mode instruction, hypophypnosis mode instruction, deep sleep mode instruction; And
After described OLT enters low-power consumption mode according to this ONU of the strategy decision pre-established, send Low-Power Instruction to this ONU and specifically comprise:
If described OLT determines that this ONU enters doze mode, then send doze mode instruction to this ONU;
If described OLT determines that this ONU enters hypophypnosis pattern, then send hypophypnosis mode instruction to this ONU;
If described OLT determines this ONU penetration depth sleep pattern, then send deep sleep mode instruction to this ONU; And
Described ONU system equipment is after receiving described Low-Power Instruction, and the ONU optical module controlling this ONU enters low-power consumption mode and specifically comprises:
If described ONU system equipment receives described doze mode instruction, then the ONU optical module controlling this ONU enters doze mode;
If described ONU system equipment receives described hypophypnosis mode instruction, then the ONU optical module controlling this ONU enters hypophypnosis pattern;
If described ONU system equipment receives described deep sleep mode instruction, then control the ONU optical module penetration depth sleep pattern of this ONU.
Preferably, described Low-Power Instruction is carried in the GATE message that described OLT sends to described ONU; And
Described low-power consumption solicited message is carried in the GATE message that described ONU sends to described OLT.
Further, after described ONU optical module enters low-power consumption mode, also comprise:
If described ONU receives the information that terminal use sends, then control described ONU optical module and exit described low-power consumption mode, and send to described OLT notice of reviving.
According to an aspect of the present invention, provide a kind of EPON, comprising: optical line terminal OLT and multiple optical network unit ONU;
Described OLT goes out after one of them ONU enters low-power consumption mode according to the strategy decision pre-established, and sends Low-Power Instruction to this ONU;
The ONU system equipment of this ONU is after receiving described Low-Power Instruction, and the ONU optical module controlling this ONU enters low-power consumption mode.
Wherein, described OLT comprises:
Low-power consumption mode determination module, if enter low-power consumption mode for determining according to the strategy pre-established the ONU communicated with this OLT, then exports low-power consumption notice;
Instruction sending module, for after receiving the low-power consumption notice of described low-power consumption mode determination module output, the ONU entering low-power consumption mode determined to described low-power consumption mode determination module sends Low-Power Instruction.
Described low-power consumption mode specifically comprises: doze mode, hypophypnosis pattern, deep sleep mode; And described low-power consumption mode determination module comprises as one of lower unit, or as the combination in any of lower unit:
Doze mode unit, for after the free time of described ONU exceedes setting-up time section A, determines that this ONU enters doze mode, exports described low-power consumption notice;
Hypophypnosis mode unit, for after the free time of described ONU exceedes setting-up time section B, determines that this ONU enters hypophypnosis pattern, exports described low-power consumption notice;
Deep sleep mode unit, for after the free time of described ONU exceedes setting-up time section C, determines this ONU penetration depth sleep pattern, exports described low-power consumption notice.
Described low-power consumption solicited message specifically comprises: the doze mode solicited message corresponding to described doze mode, the hypophypnosis mode request information corresponding with described hypophypnosis pattern, the deep sleep mode solicited message corresponding with described deep sleep mode; And described low-power consumption mode determination module also comprises:
Low-power consumption solicited message receiving element, for receive at described OLT described ONU send low-power consumption solicited message after, determine that this ONU enters the low-power consumption mode corresponding to described low-power consumption solicited message, and export described low-power consumption notice.
Described ONU comprises: ONU system equipment and ONU optical module;
Described ONU system equipment, after the Low-Power Instruction receiving OLT transmission, controls described ONU optical module and enters low-power consumption mode.
Described low-power consumption mode specifically comprises: doze mode, hypophypnosis pattern, deep sleep mode; And described Low-Power Instruction specifically comprises: the doze mode instruction corresponding to doze mode, the hypophypnosis mode instruction corresponding with described hypophypnosis pattern, the deep sleep mode instruction corresponding with described deep sleep mode; And,
Described ONU system equipment comprises: command reception parsing module, optical module control module;
Described command reception parsing module for receive OLT send instruction after, if parsing this instruction is Low-Power Instruction, then analysis result is sent to described optical module control module;
Described optical module control module is used for sending corresponding low-power consumption mode control command according to the Low-Power Instruction in described analysis result to described ONU optical module, controls described ONU optical module and enters corresponding low-power consumption mode.
Described low-power consumption mode control command specifically comprises: the doze mode control command corresponding to doze mode, the hypophypnosis Schema control instruction corresponding with described hypophypnosis pattern, the deep sleep mode control command corresponding with described deep sleep mode; And,
Described ONU optical module comprises: MCU, laser and drive circuit thereof, photodiode, trans-impedance amplifier TIA, amplitude limiting amplifier circuit;
Described MCU is for receiving described low-power consumption mode control command; If determine, described low-power consumption mode control command is doze mode control command, then send information to described drive circuit, controls described drive circuit and is cut to the bias current and modulated current that described laser provides; Or, if determine, described low-power consumption mode control command is deep sleep mode control command, then send information to described drive circuit, control described drive circuit and be cut to the bias current and modulated current that described laser provides, and send information to described amplitude limiting amplifier circuit, control described amplitude limiting amplifier circuit and cut off the path with described TIA; Or, if determine, described low-power consumption mode control command is the instruction of hypophypnosis Schema control, then send information to described drive circuit, control described drive circuit the bias current provided for laser and modulated current are reduced, and send information to described amplitude limiting amplifier circuit, control to reduce the electric current in described amplitude limiting amplifier circuit.
Further, described ONU system equipment also comprises:
Low-power consumption decision module, for after determining that the downlink data flow of this ONU drops to 0, determines to enter doze mode, sends doze mode notice; Or, after determining that the free time of this ONU exceedes setting-up time section D, determine to enter hypophypnosis pattern, send hypophypnosis pattern notification; Or, after determining that the free time of this ONU exceedes setting-up time section E, determine penetration depth sleep pattern, send deep sleep mode notice;
Solicited message sending module, for the notice sent according to described low-power consumption decision module, sends corresponding low-power consumption solicited message.
Preferably, described ONU also for after the information receiving terminal use's transmission, controls described ONU optical module and exits low-power consumption mode, and sends to described OLT notice of reviving.
According to another aspect of the present invention, additionally provide the optical line terminal OLT in a kind of EPON, comprising:
Low-power consumption mode determination module, after entering low-power consumption mode according to the strategy decision ONU gone out in described optical-fiber network pre-established, exports low-power consumption notice;
Instruction sending module, for after receiving the low-power consumption notice of described low-power consumption mode determination module output, the ONU entering low-power consumption mode determined to described low-power consumption mode determination module sends Low-Power Instruction.
Wherein, described low-power consumption mode specifically comprises: doze mode, hypophypnosis pattern, deep sleep mode; And described low-power consumption mode determination module comprises as one of lower unit, or as the combination in any of lower unit:
Doze mode unit, for after the free time of described ONU exceedes setting-up time section A, determines that this ONU enters doze mode, exports described low-power consumption notice;
Hypophypnosis mode unit, for after the free time of described ONU exceedes setting-up time section B, determines that this ONU enters hypophypnosis pattern, exports described low-power consumption notice;
Deep sleep mode unit, for after the free time of described ONU exceedes setting-up time section C, determines this ONU penetration depth sleep pattern, exports described low-power consumption notice.
Preferably, described low-power consumption mode determination module also comprises:
Low-power consumption solicited message receiving element, for receive at described OLT described ONU send low-power consumption solicited message after, determine that this ONU enters the low-power consumption mode corresponding to described low-power consumption solicited message, and export described low-power consumption notice;
Wherein, described low-power consumption solicited message specifically comprises: the doze mode solicited message corresponding to described doze mode, the hypophypnosis mode request information corresponding with described hypophypnosis pattern, the deep sleep mode solicited message corresponding with described deep sleep mode.
Described Low-Power Instruction specifically comprises: the doze mode instruction corresponding to described doze mode, the hypophypnosis mode instruction corresponding with described hypophypnosis pattern, the deep sleep mode instruction corresponding with described deep sleep mode; And described instruction sending module specifically comprises:
Message generating module, for after receiving the low-power consumption notice of described low-power consumption mode determination module output, generate the GATE message entering the ONU transmission of low-power consumption mode determined to described low-power consumption mode determination module, and corresponding Low-Power Instruction is carried in this GATE message;
Message transmission module, sends for the GATE message described message generating module generated.
According to another aspect of the present invention, additionally provide a kind of optical network unit, comprising: ONU system equipment and ONU optical module;
Described ONU system equipment, after the Low-Power Instruction receiving OLT transmission, controls described ONU optical module and enters low-power consumption mode.
Wherein, described low-power consumption mode specifically comprises: doze mode, hypophypnosis pattern, deep sleep mode; And described Low-Power Instruction specifically comprises: the doze mode instruction corresponding to doze mode, the hypophypnosis mode instruction corresponding with described hypophypnosis pattern, the deep sleep mode instruction corresponding with described deep sleep mode; And,
Described ONU system equipment comprises: command reception parsing module, optical module control module;
Described command reception parsing module for receive OLT send instruction after, if parsing this instruction is Low-Power Instruction, then analysis result is sent to described optical module control module;
Described optical module control module is used for sending corresponding low-power consumption mode control command according to the Low-Power Instruction in described analysis result to described ONU optical module, controls described ONU optical module and enters corresponding low-power consumption mode.
Further, described ONU system equipment also comprises:
Low-power consumption decision module, for after determining that the downlink data flow of this ONU drops to 0, determines to enter doze mode, sends doze mode notice; Or, after determining that the free time of this ONU exceedes setting-up time section D, determine to enter hypophypnosis pattern, send hypophypnosis pattern notification; Or, after determining that the free time of this ONU exceedes setting-up time section E, determine penetration depth sleep pattern, send deep sleep mode notice;
Solicited message sending module, for the notice sent according to described low-power consumption decision module, sends corresponding low-power consumption solicited message.
Further, described optical module control module also for after in control, described ONU optical module enters corresponding low-power consumption mode, if after described optical network unit receives the information that terminal use sends, control described ONU optical module and exit low-power consumption mode; And
Described request information sending module also after described ONU optical module exits low-power consumption mode, sends to described OLT notice of reviving for controlling in described optical module control module.
Described low-power consumption mode control command specifically comprises: the doze mode control command corresponding to doze mode, the hypophypnosis Schema control instruction corresponding with described hypophypnosis pattern, the deep sleep mode control command corresponding with described deep sleep mode; And,
Described ONU optical module comprises: MCU, laser and drive circuit thereof, trans-impedance amplifier TIA, amplitude limiting amplifier circuit;
Described MCU is for receiving described low-power consumption mode control command; If determine, described low-power consumption mode control command is doze mode control command, then send information to described drive circuit, controls described drive circuit and is cut to the bias current and modulated current that described laser provides; Or, if determine, described low-power consumption mode control command is deep sleep mode control command, then send information to described drive circuit, control described drive circuit and be cut to the bias current and modulated current that described laser provides, and send information to described amplitude limiting amplifier circuit, control described amplitude limiting amplifier circuit and cut off the path with described TIA; Or, if determine, described low-power consumption mode control command is the instruction of hypophypnosis Schema control, then send information to described drive circuit, control described drive circuit the bias current provided for laser and modulated current are reduced, and send information to described amplitude limiting amplifier circuit, control to reduce the electric current in described amplitude limiting amplifier circuit.
Preferably, described MCU also for after exiting low-power consumption mode control command described in receiving, controls described ONU optical module and exits low-power consumption mode.
According to another aspect of the present invention, additionally provide the ONU system equipment in a kind of optical network unit, comprising: command reception parsing module, optical module control module;
Described command reception parsing module for receive OLT send instruction after, if parsing this instruction is Low-Power Instruction, then analysis result is sent to described optical module control module;
Described optical module control module is used for sending corresponding low-power consumption mode control command according to the Low-Power Instruction in described analysis result to described ONU optical module, controls described ONU optical module and enters corresponding low-power consumption mode.
Wherein, described low-power consumption mode specifically comprises: doze mode, hypophypnosis pattern, deep sleep mode; And described Low-Power Instruction specifically comprises: the doze mode instruction corresponding to doze mode, the hypophypnosis mode instruction corresponding with described hypophypnosis pattern, the deep sleep mode instruction corresponding with described deep sleep mode; And,
Described ONU system equipment also comprises:
Low-power consumption decision module, for after determining that the downlink data flow of this ONU drops to 0, determines to enter doze mode, sends doze mode notice; Or, after determining that the free time of this ONU exceedes setting-up time section D, determine to enter hypophypnosis pattern, send hypophypnosis pattern notification; Or, after determining that the free time of this ONU exceedes setting-up time section E, determine penetration depth sleep pattern, send deep sleep mode notice;
Solicited message sending module, for the notice sent according to described low-power consumption decision module, sends corresponding low-power consumption solicited message.
Described optical module control module also for after in control, described ONU optical module enters corresponding low-power consumption mode, if after described optical network unit receives the information that terminal use sends, control described ONU optical module and exit low-power consumption mode; And
Described request information sending module also after described ONU optical module exits low-power consumption mode, sends to described OLT notice of reviving for controlling in described optical module control module.
According to another aspect of the present invention, additionally provide the ONU optical module in a kind of optical network unit, comprising: MCU, laser and drive circuit thereof, trans-impedance amplifier TIA, amplitude limiting amplifier circuit;
Described MCU is for receiving described low-power consumption mode control command; Described low-power consumption mode control command specifically comprises: the doze mode control command corresponding to doze mode, the hypophypnosis Schema control instruction corresponding with described hypophypnosis pattern, the deep sleep mode control command corresponding with described deep sleep mode;
If described MCU determines that described low-power consumption mode control command is doze mode control command, then send information to described drive circuit, control described drive circuit and be cut to the bias current and modulated current that described laser provides; Or,
If described MCU determines that described low-power consumption mode control command is deep sleep mode control command, then send information to described drive circuit, control described drive circuit and be cut to the bias current and modulated current that described laser provides, and send information to described amplitude limiting amplifier circuit, control described amplitude limiting amplifier circuit and cut off the path with described TIA; Or,
If described MCU determines that described low-power consumption mode control command is the instruction of hypophypnosis Schema control, then send information to described drive circuit, control described drive circuit the bias current provided for laser and modulated current are reduced, and send information to described amplitude limiting amplifier circuit, control to reduce the electric current in described amplitude limiting amplifier circuit.
Further, described MCU also for after exiting low-power consumption mode control command described in receiving, controls described ONU optical module and exits low-power consumption mode.
In the technical scheme that the embodiment of the present invention provides, OLT according to the strategy pre-established after judging that ONU can enter low-power consumption mode, Low-Power Instruction is sent to ONU by OLT, instruction ONU enters low-power consumption mode, thus OLT can control the situation of the ONU in whole EPON, avoid causing confusion; And after ONU enters low-power consumption mode according to instruction control ONU optical module, or close the transmitting that laser temporarily stops light signal, or the output cutting off optical fiber receive module temporarily stops the reception of light signal, thus reach the object of saving power consumption, energy savings.
And ONU is after receiving the upstream data sent from terminal use, can come to life from low-power consumption mode voluntarily, concurrent notification informs OLT, thus enters normal operating state.
Accompanying drawing explanation
Fig. 1 is the EPON schematic diagram of prior art;
Fig. 2 is the schematic diagram sending downlink data in the EPON of prior art;
Fig. 3 is the schematic diagram sending upstream data in the EPON of prior art;
Fig. 4 is the EPON schematic diagram of the embodiment of the present invention;
Fig. 5 is the EPON Low-power-consumptiocontrol control method flow process of the embodiment of the present invention;
Fig. 6 is the method flow diagram of ONU to OLT transmission low-power consumption solicited message of the embodiment of the present invention;
Fig. 7 is the OLT internal structure block diagram of the embodiment of the present invention;
Fig. 8 is the internal structure block diagram of the ONU system equipment in the ONU of the embodiment of the present invention;
Fig. 9 is the internal circuit block diagram of the ONU optical module in the ONU of the embodiment of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, enumerate preferred embodiment referring to accompanying drawing, the present invention is described in more detail.But it should be noted that, the many details listed in specification are only used to make reader to have a thorough understanding, even if do not have these specific details also can realize these aspects of the present invention to one or more aspect of the present invention.
The term such as " module " used in this application, " system " is intended to comprise the entity relevant to computer, such as but not limited to hardware, firmware, combination thereof, software or executory software.Such as, module can be, but be not limited in: the thread of the process that processor runs, processor, object, executable program, execution, program and/or computer.
The present inventor considers, the downlink data received due to ONU in EPON is sent by OLT, and be that ONU distributes the time period sending upstream data by OLT, therefore, OLT can know the time period of each ONU downlink data receiving and send the time period of upstream data; Therefore, OLT can according to the strategy pre-established, and at ONU without downlink data receiving, the time period interior control ONU also not sending upstream data enters low-power consumption mode, and such as, control ONU closes laser or receiver; Thus reduce the power consumption of ONU optical module, also just reduce the power consumption of ONU, reach the object of energy savings.
The technical scheme of the embodiment of the present invention is described in detail below in conjunction with accompanying drawing.The EPON of the embodiment of the present invention as shown in Figure 4, comprising: OLT401, POS402, multiple ONU403.
OLT401 is connected with POS402 by optical fiber, and each ONU403 is connected with POS402 by optical fiber, thus each ONU403 realizes the communication with OLT401 by optical fiber and POS402.
Low-power-consumptiocontrol control method in the EPON of the embodiment of the present invention, namely OLT401 control ONU403 enters the method for low-power consumption mode, and flow chart as shown in Figure 5, comprises the steps:
If after S501:OLT401 enters low-power consumption mode according to the ONU403 that the strategy decision pre-established goes out in EPON, send Low-Power Instruction to this ONU, this Low-Power Instruction specifically can be carried in GATE message (window message) and send.
The strategy pre-established in OLT401 can be: the free time of the ONU403 determined in EPON at OLT401 exceedes setting-up time section, then determine that this ONU enters low-power consumption mode.
Preferably, low-power consumption mode can comprise: doze mode;
Further, low-power consumption mode can also comprise: hypophypnosis pattern, deep sleep mode;
The strategy pre-established in OLT401 specifically can comprise:
If OLT401 determines that the free time of this ONU exceedes setting-up time section A, then determine that this ONU enters doze mode;
Further, the strategy pre-established in OLT401 can also comprise:
If OLT401 determines that the free time of this ONU exceedes setting-up time section B, then determine that this ONU enters hypophypnosis pattern;
If OLT401 determines that the free time of this ONU exceedes setting-up time section C, then determine this ONU penetration depth sleep pattern.
Above-mentioned setting-up time section A, setting-up time section B, setting-up time section C those skilled in the art can be arranged according to actual conditions.Such as, arrange that setting-up time section A is 1s, setting-up time section B is 3s, setting-up time section C is 6s.
Obviously, those skilled in the art can arrange other strategy according to actual conditions.
In this step, after OLT401 determines the low-power consumption mode of ONU, send corresponding Low-Power Instruction to this ONU; Preferably, Low-Power Instruction can comprise: the doze mode instruction corresponding to doze mode; Further, Low-Power Instruction can also comprise: the hypophypnosis mode instruction corresponding to hypophypnosis pattern, the deep sleep mode instruction corresponding with deep sleep mode.
Particularly, if OLT401 determines that this ONU enters doze mode, then send doze mode instruction to this ONU;
If OLT401 determines that this ONU enters hypophypnosis pattern, then send hypophypnosis mode instruction to this ONU;
If OLT401 determines this ONU penetration depth sleep pattern, then send deep sleep mode instruction to this ONU.
Above-mentioned Low-Power Instruction specifically can be carried in the GATE message that OLT401 sends to this ONU.Particularly, after OLT401 determines that this ONU enters low-power consumption mode, OLT401 carries Low-Power Instruction in each GATE message sent to this ONU, until receive the notice of reviving of this ONU transmission.
After S502:ONU403 receives the Low-Power Instruction of OLT401 transmission, the ONU optical module controlling this ONU enters low-power consumption mode.
Particularly, after ONU403 receives the Low-Power Instruction of OLT401 transmission, the ONU system equipment of ONU403 sends corresponding low-power consumption mode control command to ONU optical module, and the ONU optical module controlling this ONU enters corresponding low-power consumption mode.
Low-power consumption mode control command can comprise: the doze mode control command corresponding to doze mode, the hypophypnosis Schema control instruction corresponding with described hypophypnosis pattern, the deep sleep mode control command corresponding with described deep sleep mode.
If the Low-Power Instruction that ONU403 receives is doze mode instruction, then ONU system equipment sends doze mode control command to ONU optical module; After MCU in ONU optical module receives doze mode control command, send information to the drive circuit in ONU optical module, control drive circuit and be cut to the bias current and modulated current that laser provides, thus ONU optical module enters doze mode;
If the Low-Power Instruction that ONU403 receives is hypophypnosis mode instruction, then ONU system equipment sends the instruction of hypophypnosis Schema control to ONU optical module; After MCU in ONU optical module receives the instruction of hypophypnosis Schema control, information is sent to described drive circuit, control described drive circuit the bias current provided for laser and modulated current are reduced, and send information to described amplitude limiting amplifier circuit, control to reduce the electric current in described amplitude limiting amplifier circuit;
If the Low-Power Instruction that ONU403 receives is deep sleep mode instruction, then ONU system equipment sends deep sleep mode control command to ONU optical module; After MCU in ONU optical module receives deep sleep mode control command, information is sent to described drive circuit, control described drive circuit and be cut to the bias current and modulated current that described laser provides, and send information to described amplitude limiting amplifier circuit, control described amplitude limiting amplifier circuit and cut off the path with described TIA.
Above-mentioned low-power consumption mode control command, can be sent to ONU optical module by iic bus or other serial or parallel bus by ONU system equipment; Also can by the MCU in ONU system equipment, the general input/output port pin (GPIO pin) be connected with the MCU in ONU optical module by it, sends low-power consumption mode control command to ONU optical module.
That is, when described low-power consumption mode is specially doze mode, after namely the MCU of ONU optical module receives doze mode control command, the drive circuit in control ONU optical module is cut to the bias current and modulated current that laser provides;
When described low-power consumption mode is specially deep sleep mode, namely after the MCU of ONU optical module receives deep sleep mode control command, drive circuit in control ONU optical module is cut to the bias current and modulated current that laser provides, and the amplitude limiting amplifier circuit in control ONU optical module cuts off the path with trans-impedance amplifier TIA;
When described low-power consumption mode is specially hypophypnosis pattern, namely after the MCU of ONU optical module receives the instruction of hypophypnosis Schema control, the bias current provided for laser and modulated current reduce by the drive circuit in control ONU optical module, and control to reduce the electric current in the amplitude limiting amplifier circuit in ONU optical module.
After S503:ONU403 receives the information of terminal use's transmission, the ONU optical module controlling this ONU exits low-power consumption mode, enters normal mode of operation.
After ONU optical module enters low-power consumption mode, if ONU403 receives the information that terminal use sends, then the ONU system equipment of ONU403 sends to ONU optical module and wakes control command up, after the MCU of ONU optical module receives and wakes control command up, exit low-power consumption mode, enter normal mode of operation, namely the drive circuit in control ONU optical module provides normal bias current and modulated current for laser, electric current in amplitude limiting amplifier circuit in control ONU optical module reverts to normal electric current, and amplitude limiting amplifier circuit normally receives the electric current that described TIA exports.
S504:ONU403, after control ONU optical module exits low-power consumption mode, sends to OLT401 notice of reviving.
ONU403, after control ONU optical module exits low-power consumption mode, sends to OLT401 notice of reviving, informs that this ONU of OLT401 exits low-power consumption mode, enter normal mode of operation.ONU403 specifically can be carried in GATE message to the notice of reviving that OLT401 sends and send.
Further, the strategy pre-established in OLT401 can also comprise: if this OLT receives the low-power consumption solicited message that ONU sends, then determine that this ONU enters low-power consumption mode.Concrete flow process as shown in Figure 6, comprises the steps:
S601:ONU403, according to the rule pre-established, after determining that this ONU enters low-power consumption mode, sends low-power consumption solicited message to OLT401.
Particularly, low-power consumption solicited message can comprise: the doze mode solicited message corresponding to doze mode, the hypophypnosis mode request information corresponding with hypophypnosis pattern, the deep sleep mode solicited message corresponding with deep sleep mode.
The rule pre-established in ONU403 can be as follows:
If ONU determines that the downlink data flow of this ONU drops to 0, then determine that this ONU enters the low-power consumption mode of doze mode, send doze mode solicited message to OLT401;
If ONU determines that the free time of this ONU exceedes setting-up time section D, then determine that this ONU enters the low-power consumption mode of hypophypnosis pattern, send hypophypnosis mode request information to OLT401;
If ONU determines that the free time of this ONU exceedes setting-up time section E, then determine the low-power consumption mode of this ONU penetration depth sleep pattern, send deep sleep mode solicited message to described OLT.
Obviously, those skilled in the art can set other rule according to actual conditions.Above-mentioned setting-up time section D, setting-up time section E those skilled in the art can be arranged according to actual conditions.Such as, arrange that setting-up time section D is 3s, setting-up time section E is 6s.
The low-power consumption solicited message that ONU403 sends specifically can be carried in GATE message and be sent to OLT401.
S602:OLT401 determines that this ONU enters low-power consumption mode after receiving the low-power consumption solicited message of ONU403 transmission.
Particularly, OLT401, after the low-power consumption solicited message receiving ONU403 transmission, determines that this ONU enters corresponding low-power consumption mode:
If OLT401 receives the doze mode solicited message that ONU403 sends, then determine that this ONU enters the low-power consumption mode of doze mode;
If OLT401 receives the hypophypnosis mode request information that ONU403 sends, then determine that this ONU enters the low-power consumption mode of hypophypnosis pattern;
If OLT401 receives the deep sleep mode solicited message that ONU403 sends, then determine the low-power consumption mode of this ONU penetration depth sleep pattern.
S603:OLT401, after decision ONU403 enters low-power consumption mode, sends Low-Power Instruction to this ONU.
Particularly, OLT401, after decision ONU403 enters low-power consumption mode, sends corresponding Low-Power Instruction to this ONU.
After OLT401 determines that ONU403 enters low-power consumption mode, the method sending corresponding Low-Power Instruction to this ONU is identical with related content in above-mentioned steps 501, repeats no more herein;
Each step that ONU403 sends after Low-Power Instruction is identical with 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 Figure 7, comprising: low-power consumption mode determination module 701, instruction sending module 702.
After low-power consumption mode determination module 701 enters low-power consumption mode for the strategy decision ONU gone out in EPON that basis pre-establishes, export low-power consumption notice;
Instruction sending module 702 is for after receiving the low-power consumption notice of low-power consumption mode determination module 701 output, and the ONU entering low-power consumption mode determined to low-power consumption mode determination module 701 sends Low-Power Instruction.
Particularly, described low-power consumption mode specifically comprises: doze mode, hypophypnosis pattern, deep sleep mode; And low-power consumption mode determination module 701 comprises as one of lower unit, or as the combination in any of lower unit:
Doze mode unit 711, for after the free time of described ONU exceedes setting-up time section A, determines that this ONU enters doze mode, exports described low-power consumption notice;
Hypophypnosis mode unit 712, for after the free time of described ONU exceedes setting-up time section B, determines that this ONU enters hypophypnosis pattern, exports described low-power consumption notice;
Deep sleep mode unit 713, for after the free time of described ONU exceedes setting-up time section C, determines this ONU penetration depth sleep pattern, exports described low-power consumption notice.
Further, low-power consumption mode determination module 701 also can comprise:
Low-power consumption solicited message receiving element 714, for receive at described OLT described ONU send low-power consumption solicited message after, determine that this ONU enters the low-power consumption mode corresponding to described low-power consumption solicited message, and export described low-power consumption notice; Wherein, described low-power consumption solicited message specifically comprises: the doze mode solicited message corresponding to described doze mode, the hypophypnosis mode request information corresponding with described hypophypnosis pattern, the deep sleep mode solicited message corresponding with described deep sleep mode.
Particularly, described Low-Power Instruction can comprise: the doze mode instruction corresponding to described doze mode, the hypophypnosis mode instruction corresponding with described hypophypnosis pattern, the deep sleep mode instruction corresponding with described deep sleep mode; Then instruction sending module 702 specifically can comprise:
Message generating module 721, for after receiving the low-power consumption notice of low-power consumption mode determination module 701 output, generate the GATE message entering the ONU transmission of low-power consumption mode determined to low-power consumption mode determination module 701, and corresponding Low-Power Instruction is carried in this GATE message;
Message transmission module 722, sends for the GATE message described message generating module generated.
The internal structure block diagram of above-mentioned optical network unit ONU 403, as shown in Figure 8, comprising: ONU system equipment 801, ONU optical module 802.
ONU system equipment 801 is after the Low-Power Instruction receiving OLT transmission, and control ONU optical module 802 enters low-power consumption mode.
Wherein, ONU system equipment 801 specifically comprises: command reception parsing module 811, optical module control module 812;
Command reception parsing module 811 for receive OLT send instruction after, if parsing this instruction is Low-Power Instruction, then analysis result is sent to optical module control module 812;
Optical module control module 812 is for sending corresponding low-power consumption mode control command according to the Low-Power Instruction in described analysis result to described ONU optical module, and control ONU optical module 802 enters corresponding low-power consumption mode.
Wherein, described low-power consumption mode specifically comprises: doze mode, hypophypnosis pattern, deep sleep mode; And described Low-Power Instruction specifically comprises: the doze mode instruction corresponding to doze mode, the hypophypnosis mode instruction corresponding with described hypophypnosis pattern, the deep sleep mode instruction corresponding with described deep sleep mode.
Further, ONU system equipment also comprises: low-power consumption decision module 813, solicited message sending module 814.
Low-power consumption decision module 813, for after determining that the downlink data flow of this ONU drops to 0, determines to enter doze mode, sends doze mode notice; Or, after determining that the free time of this ONU exceedes setting-up time section D, determine to enter hypophypnosis pattern, send hypophypnosis pattern notification; Or, after determining that the free time of this ONU exceedes setting-up time section E, determine penetration depth sleep pattern, send deep sleep mode notice;
The notice of solicited message sending module 814 for sending according to low-power consumption decision module 813, sends corresponding low-power consumption solicited message.Wherein, low-power consumption solicited message specifically comprises: the doze mode solicited message corresponding to doze mode, the hypophypnosis mode request information corresponding with hypophypnosis pattern, the deep sleep mode solicited message corresponding with deep sleep mode.
Further, optical module control module 812 is also for after control ONU optical module 802 enters corresponding low-power consumption mode, if after described optical network unit receives the information of terminal use's transmission, exit low-power consumption mode control command to ONU optical module 802, control ONU optical module 802 exits low-power consumption mode; And
Solicited message sending module 814, also for after optical module control module 812 control ONU optical module 802 exits low-power consumption mode, sends to described OLT notice of reviving.
As shown in Figure 9, ONU optical module 802 comprises: MCU(MicroprogrammedControlUnit, microprogram control unit) 921, laser 922 and drive circuit 923, photodiode 924, trans-impedance amplifier TIA925, amplitude limiting amplifier circuit 926.
Usually, ONU optical module comprises laser emission element, in order to launch uplink optical signal; Laser pick-off unit is also comprised, in order to receive the downlink optical signal that OLT sends in ONU optical module.
Generally include in laser emission element: laser and drive circuit thereof, after drive circuit receives the signal of telecommunication, launch the laser of specific wavelength as uplink optical signal according to laser light emitting light source in the signal of telecommunication drive laser received.
Generally include in laser pick-off unit: optical fiber receive module and amplitude limiting amplifier circuit; Optical fiber receive module generally includes: photodiode, trans-impedance amplifier TIA.Photodiode exports corresponding response current and then exports corresponding differential electric signal to TIA, TIA after detecting downlink optical signal; This differential signal is sent to amplitude limiting amplifier circuit, and this differential signal is carried out limited range enlargement by amplitude limiting amplifier circuit, exports the corresponding signal of telecommunication.
MCU in ONU optical module can be communicated with drive circuit by iic bus or other universal serial bus or parallel bus, in order to control drive circuit, or the parameter of configuration driven circuit;
MCU in ONU optical module also can be communicated with amplitude limiting amplifier circuit by iic bus or other universal serial bus or parallel bus, in order to control amplitude limiting amplifier circuit, or the parameter of configuration amplitude limiting amplifier circuit.
In the ONU optical module 802 that the embodiment of the present invention provides:
MCU921 is after receiving low-power consumption mode control command, and control ONU optical module 802 enters low-power consumption mode and can be specifically:
MCU921 receives described low-power consumption mode control command; If determine, described low-power consumption mode control command is doze mode control command, then send information to drive circuit 923, control drive circuit 923 and be cut to the bias current and modulated current that laser 922 provides, thus control ONU optical module 802 enters the low-power consumption mode of doze mode;
Or, if MCU921 determines that described low-power consumption mode control command is deep sleep mode control command, then send information to drive circuit 923, control drive circuit 923 and be cut to the bias current and modulated current that laser 922 provides, and send information to amplitude limiting amplifier circuit 926, control amplitude limiting amplifier circuit 926 and cut off the path with TIA925, thus the low-power consumption mode of control ONU optical module 802 penetration depth sleep pattern;
Or, if MCU921 determines that described low-power consumption mode control command is the instruction of hypophypnosis Schema control, then send information to drive circuit 923, control drive circuit 923 bias current provided for laser 922 and modulated current are reduced, and send information to amplitude limiting amplifier circuit 926, control to reduce the electric current in amplitude limiting amplifier circuit 926.
Further, MCU921 is after receiving and exiting low-power consumption mode control command, control ONU optical module 802 exits low-power consumption mode: MCU921 controls normal bias current that drive circuit 923 provides for laser 922 and modulated current, MCU921 controls the output current that amplitude limiting amplifier circuit 926 normally receives TIA925, and the electric current controlled in amplitude limiting amplifier circuit 926 recovers normal.
In fact, the time sending light signal due to ONU is controlled to arrange by OLT, therefore, in order to allow ONU save power consumption can not simply, the ONU optical module that directly controls this ONU voluntarily enters low-power consumption mode, if ONU is from being advanced into low-power consumption mode, can cause the confusion of whole passive optical network.Based on this, in the technical scheme that the embodiment of the present invention provides, OLT according to the strategy pre-established after judging that ONU can enter low-power consumption mode, Low-Power Instruction is sent to ONU by OLT, instruction ONU enters low-power consumption mode, thus OLT can control the situation of the ONU in whole EPON, avoid causing confusion; And after ONU enters low-power consumption mode according to instruction control ONU optical module, or close the transmitting that laser temporarily stops light signal, or the output cutting off optical fiber receive module temporarily stops the reception of light signal, thus reach the object of saving power consumption, energy savings.
And ONU is after receiving the upstream data sent from terminal use, can come to life from low-power consumption mode voluntarily, concurrent notification informs OLT, thus enters normal operating state.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, this program can be stored in a computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (12)

1. a Low-power-consumptiocontrol control method in EPON, wherein, described EPON comprises: optical line terminal OLT and multiple optical network unit ONU; Described method comprises:
For one of them ONU, described OLT determines according to the low-power consumption solicited message that the free time of this ONU or this ONU send the corresponding low-power consumption mode that this ONU will enter, and sends corresponding Low-Power Instruction to this ONU, comprising:
If determine, the free time of this ONU exceedes setting-up time section A or receives the doze mode solicited message that this ONU sends, then determine that this ONU enters doze mode, and send doze mode instruction to this ONU;
If determine, the free time of this ONU exceedes setting-up time section B or receives the hypophypnosis mode request information that this ONU sends, then determine that this ONU enters hypophypnosis pattern, and send hypophypnosis instruction to this ONU;
If determine, the free time of this ONU exceedes setting-up time section C or receives the deep sleep mode solicited message that this ONU sends, then determine this ONU penetration depth sleep pattern, and send deep sleep instruction to this ONU;
The ONU system equipment of this ONU is after receiving corresponding Low-Power Instruction, and the ONU optical module controlling this ONU enters corresponding low-power consumption mode.
2. the method for claim 1, wherein
Under doze mode, the drive circuit in described ONU optical module is cut to the bias current and modulated current that laser provides;
In deepsleep mode, the drive circuit in described ONU optical module is cut to the bias current and modulated current that laser provides, and the amplitude limiting amplifier circuit in described ONU optical module cuts off the path with trans-impedance amplifier TIA; Or,
Under hypophypnosis pattern, the bias current provided for laser and modulated current reduce by the drive circuit in described ONU optical module, and reduce the electric current in the amplitude limiting amplifier circuit in described ONU optical module.
3. the method for claim 1, wherein
If described ONU determines that the downlink data flow of this ONU drops to 0, then send doze mode solicited message to described OLT;
If described ONU determines that the free time of this ONU exceedes setting-up time section D, then send hypophypnosis mode request information to described OLT;
If described ONU determines that the free time of this ONU exceedes setting-up time section E, then send deep sleep mode solicited message to described OLT.
4. the method for claim 1, is characterized in that, described Low-Power Instruction is carried in the GATE message that described OLT sends to described ONU; And
Described low-power consumption solicited message is carried in the GATE message that described ONU sends to described OLT.
5. the method for claim 1, is characterized in that, after described ONU optical module enters low-power consumption mode, also comprises:
If described ONU receives the information that terminal use sends, then control described ONU optical module and exit described low-power consumption mode, and send to described OLT notice of reviving.
6. an EPON, comprising: optical line terminal OLT and multiple optical network unit ONU;
Described OLT goes out after one of them ONU enters low-power consumption mode according to the strategy decision pre-established, and sends Low-Power Instruction to this ONU;
The ONU system equipment of this ONU is after receiving described Low-Power Instruction, and the ONU optical module controlling this ONU enters low-power consumption mode,
Wherein, described OLT comprises:
Low-power consumption mode determination module, if enter low-power consumption mode for determining according to the strategy pre-established the ONU communicated with this OLT, then export corresponding low-power consumption notice, this low-power consumption mode determination optical module comprises:
Doze mode unit, for after the free time of described ONU exceedes setting-up time section A, determines that this ONU enters doze mode, exports the low-power consumption notice entering doze mode;
Hypophypnosis mode unit, for after the free time of described ONU exceedes setting-up time section B, determines that this ONU enters hypophypnosis pattern, exports the low-power consumption notice entering hypophypnosis pattern;
Deep sleep mode unit, for after the free time of described ONU exceedes setting-up time section C, determines this ONU penetration depth sleep pattern, exports the low-power consumption notice of penetration depth sleep pattern;
Instruction sending module, for after receiving the low-power consumption notice of described low-power consumption mode determination module output, the ONU entering low-power consumption mode determined to described low-power consumption mode determination module sends Low-Power Instruction.
7. optical-fiber network as claimed in claim 6, wherein, described low-power consumption mode determination module also comprises:
Low-power consumption solicited message receiving element, for receive at described OLT described ONU send low-power consumption solicited message after, determine that this ONU enters the low-power consumption mode corresponding to described low-power consumption solicited message, and export corresponding low-power consumption notice, comprising:
When described low-power consumption solicited message is doze mode solicited message, export the low-power consumption notice entering doze mode;
When described low-power consumption solicited message is hypophypnosis mode request information, export the low-power consumption notice entering hypophypnosis pattern;
Described low-power consumption solicited message is deep sleep mode solicited message, exports the low-power consumption notice of penetration depth sleep pattern.
8. optical-fiber network as claimed in claim 7, it is characterized in that, described ONU comprises: ONU system equipment and ONU optical module;
Described ONU system equipment, after the Low-Power Instruction receiving OLT transmission, controls described ONU optical module and enters low-power consumption mode.
9. optical-fiber network as claimed in claim 8, it is characterized in that, described low-power consumption mode specifically comprises: doze mode, hypophypnosis pattern, deep sleep mode; And described Low-Power Instruction specifically comprises: the doze mode instruction corresponding to doze mode, the hypophypnosis mode instruction corresponding with described hypophypnosis pattern, the deep sleep mode instruction corresponding with described deep sleep mode; And,
Described ONU system equipment comprises: command reception parsing module, optical module control module;
Described command reception parsing module for receive OLT send instruction after, if parsing this instruction is Low-Power Instruction, then analysis result is sent to described optical module control module;
Described optical module control module is used for sending corresponding low-power consumption mode control command according to the Low-Power Instruction in described analysis result to described ONU optical module, controls described ONU optical module and enters corresponding low-power consumption mode.
10. optical-fiber network as claimed in claim 9, it is characterized in that, described low-power consumption mode control command specifically comprises: the doze mode control command corresponding to doze mode, the hypophypnosis Schema control instruction corresponding with described hypophypnosis pattern, the deep sleep mode control command corresponding with described deep sleep mode; And,
Described ONU optical module comprises: MCU, laser and drive circuit thereof, photodiode, trans-impedance amplifier TIA, amplitude limiting amplifier circuit;
Described MCU is for receiving described low-power consumption mode control command; If determine, described low-power consumption mode control command is doze mode control command, then send information to described drive circuit, controls described drive circuit and is cut to the bias current and modulated current that described laser provides; Or, if determine, described low-power consumption mode control command is deep sleep mode control command, then send information to described drive circuit, control described drive circuit and be cut to the bias current and modulated current that described laser provides, and send information to described amplitude limiting amplifier circuit, control described amplitude limiting amplifier circuit and cut off the path with described TIA; Or, if determine, described low-power consumption mode control command is the instruction of hypophypnosis Schema control, then send information to described drive circuit, control described drive circuit the bias current provided for laser and modulated current are reduced, and send information to described amplitude limiting amplifier circuit, control to reduce the electric current in described amplitude limiting amplifier circuit.
11. optical-fiber networks as claimed in claim 10, it is characterized in that, described ONU system equipment also comprises:
Low-power consumption decision module, for after determining that the downlink data flow of this ONU drops to 0, determines to enter doze mode, sends doze mode notice; Or, after determining that the free time of this ONU exceedes setting-up time section D, determine to enter hypophypnosis pattern, send hypophypnosis pattern notification; Or, after determining that the free time of this ONU exceedes setting-up time section E, determine penetration depth sleep pattern, send deep sleep mode notice;
Solicited message sending module, for the notice sent according to described low-power consumption decision module, sends corresponding low-power consumption solicited message.
12. optical-fiber networks as claimed in claim 10, is characterized in that,
Described ONU also for after the information receiving terminal use's transmission, controls described ONU optical module and exits low-power consumption mode, and sends to described OLT notice of reviving.
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