CN105357094A - PON (passive optical network) system, entrant side terminal device, station side terminal device and electric power saving method - Google Patents
PON (passive optical network) system, entrant side terminal device, station side terminal device and electric power saving method Download PDFInfo
- Publication number
- CN105357094A CN105357094A CN201510962554.4A CN201510962554A CN105357094A CN 105357094 A CN105357094 A CN 105357094A CN 201510962554 A CN201510962554 A CN 201510962554A CN 105357094 A CN105357094 A CN 105357094A
- Authority
- CN
- China
- Prior art keywords
- battery saving
- entrant
- saving mode
- side terminator
- control message
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40013—Details regarding a bus controller
-
- 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
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
A PON (passive optical network) system is characterized in that an ONU (optical network unit) (10) comprises a receiving buffer (13) used for storing signals sent by an OLT (optical line terminal) (1) in the down direction as well as a PON control part (11) used for controlling migration of the receiving buffer (13) to an electric power saving state and a general state; the OLT (1) comprises a sending buffer (4) used for storing sending data sent to the ONU(10) as well as a PON control unit, when the condition that the sending buffer (4) is free of sending data sent to the ONU(10) is judged, the PON control unit sends a down electric power saving state migration request for requesting migration to the down electric power saving state to the ONU (10), and the PON control part (11) sets the receiving buffer (13) in the electric power saving state in the specified down dormancy period requested according to the down electric power saving state migration request.
Description
The application is August 21 2009 applying date, application number 200980161040.1, denomination of invention are the divisional application that " PON system, entrant's side terminator, station-side terminator and electricity saving method " is applied for.
Technical field
The present invention relates to PON (PassiveOpticalNetwork, the EPON) system be made up of OLT (OpticalLineTerminal (optical line terminal): station-side terminator) and multiple ONU (OpticalNetworkUnit (optical network unit): entrant's side terminator).
Background technology
In PON system, in the mode making the data of up direction sent from ONU conflict, obtain between OLT and ONU synchronous while communicate.OLT plans, and provides the transmission for each ONU to permit in the mode making the data of up direction conflict.Now, the delay that the distance between considering due to each ONU causes.For this reason, OLT measures the two-way time between each ONU, but in the transmission utilizing optical fiber, has shake, the variation of transfer path such as to depart from, so need periodically to measure.
On the other hand, do not carry out data communication all the time, such as, do not carry out data communication completely at night etc.But, as mentioned above, no matter with or without data communication, periodically carry out the measurement of two-way time.Even if when not carrying out data communication, when making ONU become can to carry out in order to the measurement of two-way time the state communicated all the time, wastes power.For this reason, have studied by from ONU request to the transfer of electricity-saving state, make ONU intermittently move to the technology (for example, referring to non-patent literature 1) of electricity-saving state.
Non-patent literature 1:ITU-T (InternationalTelecommunicationUnionTelecommunicationstan dardizationsector) SG15Q2Intendedtypeofdocument (R-C-TD): GR-4, " ONUpower-saveannex ", PMC-Sierra, April2008
Summary of the invention
According to the technology that above-mentioned non-patent literature 1 is recorded, ONU intermittently enters into electricity-saving state.If there is the transfer request to electricity-saving state from ONU, then OLT specifies the time of continuing electricity-saving state, and ONU becomes electricity-saving state within the time that this is specified.In addition, when creating transmission data (downlink data) that mail to the ONU being in electricity-saving state, after electricity-saving state terminates, this downlink data is sent.ONU is owing to grasping with or without downlink data in advance, even if so when there is not the downlink data from OLT actually, in the moment (refresh time) that 1 electricity-saving state finishes, also need the buffer of downlink data is recovered from electricity-saving state, and become can the state (usual state) of downlink data receiving.Therefore, there is the ONU when there is not downlink data and consume the such problem of unwanted electric power.
The present invention completes in view of the above problems, its object is to obtain a kind of PON system and the electricity saving method that can reduce the power consumption of ONU.
In order to solve above-mentioned problem and reach object, PON system of the present invention, use optical link and docking station side terminator and entrant's side terminator, entrant's side terminator possesses: optical receiver, receives the light signal from station-side terminator; And power-saving control unit, make optical receiver intermittently become accepting state, and utilize multiple different energy-saving mode to control the electric power of entrant's side terminator, station-side terminator possesses: optical transmitter, sends light signal to entrant's side terminator; And control unit, use the control message sent via this optical transmitter, control multiple different energy-saving mode.
PON system of the present invention, entrant's side terminator, station-side terminator and electricity saving method play the such effect of the power consumption that can reduce entrant's side terminator.
Accompanying drawing explanation
Fig. 1 is the figure of the structure example of the execution mode 1 that PON system of the present invention is shown.
Fig. 2 is the sequential chart of an example of the economize on electricity rate-determining steps that execution mode 1 is shown.
Fig. 3 is the sequential chart of another example of the economize on electricity rate-determining steps that execution mode 1 is shown.
Fig. 4 is the figure of the form that " Sleepmodechangeacknowledge (sleep pattern changes confirmation) " message and " Sleep (sleep) " message are shown.
Fig. 5 is the figure of the form that " Sleepmodechangeacknowledge " message is shown.
Fig. 6 is the figure of the form that " Sleep " message is shown.
Fig. 7 is the figure of the form that " Sleepmodechangerequest (sleep pattern changes request) " message is shown.
Fig. 8 is the figure of the form that " Sleepmodechangerequest " message is shown.
Fig. 9 is the figure of the form that extended MAC control message is shown.
Figure 10 is the flow chart of an example of the economize on electricity rate-determining steps of the OLT that execution mode 1 is shown.
Figure 11 is the flow chart of the example that the economize on electricity rate-determining steps that the ONU of execution mode 1 implements is shown.
Figure 12 is the sequential chart of an example of the economize on electricity rate-determining steps of the PON system that execution mode 2 is shown.
Figure 13 is the sequential chart of another example of the economize on electricity rate-determining steps that execution mode 2 is shown.
Figure 14 is the flow chart of the example that the economize on electricity rate-determining steps that the OLT of execution mode 2 implements is shown.
Figure 15 is the flow chart of the example that the economize on electricity rate-determining steps that the ONU of execution mode 2 implements is shown.
(explanation of symbol)
1:OLT; 2:PON control part; 3,13: reception buffer; 4,12: transmission buffer; 5,14: light transmitter-receiver; 6:WDM; 7:PHY; 10-1 ~ 10-3:ONU; 11:PON control part; 20-1,20-2: terminal; 30: entrant's line; 40: separator; 51,142,161-1,161-2:Rx; 52,141,162-1,162-2:Tx.
Embodiment
Below, with reference to the accompanying drawings, the execution mode of PON system of the present invention and electricity saving method is described in detail.In addition, the invention is not restricted to present embodiment.
Execution mode 1.
Fig. 1 is the figure of the structure example of the execution mode 1 that PON system of the present invention is shown.As shown in Figure 1, the PON system of present embodiment has OLT1 and ONU10-1 ~ 10-3.OLT1 with ONU10-1 ~ 10-3 is connected by entrant's line 30 via separator 40.The entrant's line 30 be connected with OLT1 is branched into the quantity of ONU10-1 ~ 10-3 by separator 40.In addition, ONU10-1 is connected with terminal 20-1 and 20-2.In addition, herein, show the example making ONU become 3, but the number of units of ONU is not limited thereto and also can be any platform.
OLT1 comprises: PON control part 2, according to the process of PON actualizing OLT side; As the reception buffer 3 of the buffer for preserving the upstream data received from ONU10-1 ~ 10-3; As the transmission buffer 4 of the buffer for preserving the downlink data sent to ONU10-1 ~ 10-3; Light transmitter-receiver 5, carries out the transmission and reception process of light signal; WDM (WavelengthDivisionMultiplexing, wavelength division multiplexing) coupler (WDM) 6, carries out wavelength division multiplexing to upstream data and downlink data; And physical layer processing unit (PHY) 7, between network, realize the physical interface function of NNI (NetworkNodeInterface, Network-Node Interface).Light transmitter-receiver 5 comprises the optical receiver (Rx:Receiver) 51 carrying out reception process and the optical transmitter (Tx:Transmitter) 52 carrying out transmission processing.
ONU10-1 comprises: PON control part 11, according to the process of PON actualizing ONU side; As the transmission buffer (upper line buffer) 12 of the buffer for preserving the transmission data (upstream data) to OLT1; As the reception buffer (downlink buffer) 13 of the buffer for preserving the reception data (downlink data) from OLT1; Light transmitter-receiver 14; WDM15, carries out wavelength division multiplexing to upstream data and downlink data; And physical layer processing unit (PHY) 16-1,16-2, between terminal 20-1,20-2, realize the physical interface function of UNI (UserNetworkInterface, User Network Interface) respectively.
Light transmitter-receiver 14 comprises the optical transmitter (Tx:Transmitter) 141 carrying out transmission processing and the optical receiver (Rx:Receiver) 142 carrying out receiving process.PHY16-1 comprises acceptance division (Rx:Receiver) 161-1 carrying out receiving process and sending part (Tx:Transmitter) 162-1, the PHY16-2 carrying out transmission processing comprises acceptance division (Rx:Receiver) 161-2 carrying out reception process and sending part (Tx:Transmitter) 162-2 carrying out transmission processing.
In addition, although make the terminal be connected with ONU10-1 become 2, the quantity of terminal is not limited thereto, and also can be any platform, is set to and possesses the physical layer processing unit (PHY) corresponding with the quantity of terminal.In addition, representatively show the structure example of ONU10-1 in FIG, but ONU10-2,10-3 are also the structures same with ONU10-1.
In the present embodiment, the PON control part 2 of OLT1 is in the same manner as PON system in the past, for ONU10-1 ~ 10-3 the mode of overlapping transmitting time band can not provide respectively and send the bandwidth assignment that upstream data is carried out in license like that, prevent the transmission data collision of ONU10-1 ~ 10-3.As this bandwidth assignment, any means can be used, such as, the DynamicBandwidthAllocationAlgorithm (dynamic bandwidth allocation algorithm) etc. that " Su-ilChoiandJae-doo work, " HuhDynamicBandwidthAllocationAlgorithmforMultimediaServi cesoverEthernet (registered trade mark) PONs ", ETRIJournal, Volume24, Number6, December2002p.465 ~ p.466 " records can be used.
Next, the molar behavior of OLT1 and the ONU10-1 ~ 10-3 of present embodiment is described.PON control part 2 by via PHY7 from network reception to downlink data (downlink communication data) be saved in transmission buffer 4.When sending data from OLT1, PON control part 2 reads the downlink data of preservation in transmission buffer 4 and outputs to light transmitter-receiver 5, transmission data are outputted to WDM6 as light signal by the Tx52 of light transmitter-receiver 5, WDM6 carries out wavelength division multiplexing to the light signal exported from light transmitter-receiver 5, exports to ONU10-1 ~ 10-3 via entrant's line 30 as downstream signal.In addition, PON control part 2 is when sending the control message such as transmission enabling signal of the instruction sending license, the control message that PON control part 2 generates is outputted to light transmitter-receiver 5, below, is sent to ONU10-1 ~ 10-3 in the same manner as downlink data.In addition, in the PON system of Fig. 1, employ WDM6,15 to carry out wavelength division multiplexing, but when communicating with single wavelength, WDM6,15 and nonessential.
In ONU10-1 ~ 10-3, if receive downstream signal from OLT1, then WDM15 is separated downstream signal and outputs to light transmitter-receiver 14, and downstream signal is transformed to the downlink data of the signal of telecommunication and outputs to PON control part 11 by the Rx142 of light transmitter-receiver 14.The downlink data that Rx142 from light transmitter-receiver 14 exports is saved in reception buffer 13 by PON control part 11.PON control part 11 reads the downlink data of preservation in reception buffer 13 and outputs to PHY16-1,16-2 this two sides or folk prescription according to the sending destination of these data.PHY16-1,16-2 of receiving downlink data implement the process of regulation to downlink data, be sent to terminal 20-1,20-2 of self connecting.
On the other hand, when sending upstream data from ONU10-1 ~ 10-3, PON control part 11 is saved in transmission buffer 12 by from terminal 20-1,20-2 via the upstream data that PHY16-1,16-2 obtain.Then, light transmitter-receiver 14 is outputted to according to the upstream data preserved in the transmission license reading transmission buffer provided from OLT1.Upstream data is transformed to light signal (upward signal) by the Tx141 of light transmitter-receiver 14, is sent to OLT1 via WDM15, entrant's line 30.
The upstream data received via the Rx51 of entrant's line 30, WDM6, light transmitter-receiver 5 from ONU10-1 ~ 10-3 is saved in reception buffer 3 by the PON control part 2 of OLT1.In addition, PON control part 2 reads the upstream data preserved in reception buffer 3, outputs to network via PHY7.
In addition, in ONU10-1 ~ 10-3, from OLT1, for control message, PON control part 11 via WDM15 and light transmitter-receiver 14 Rx142 and receive, carry out implementing based on the action of the instruction of control message, for the generation etc. of the response of control message.
Next, the economize on electricity control action of present embodiment is described.In the present embodiment, OLT1 indicates the ONU10-1 ~ 10-3 that there is not downlink data, becomes the descending electricity-saving state of electricity-saving state to make the inscape of enforcement downlink data process move to.Be instructed to move to descending electricity-saving state to the ONU10-1 ~ 10-3 of the migration of descending electricity-saving state.
Fig. 2 is the sequential chart of an example of the economize on electricity rate-determining steps that present embodiment is shown.In the following description, make the ONU10-1 ~ 10-3 vague generalization be connected with OLT1, and be expressed as ONU#i (i=1,2 ..., N:N is the number of units of ONU).The structure of ONU#i is identical with the structure of the ONU10-1 shown in Fig. 1.
First, if the PON control part 2 of OLT1 detects the downlink data (step S1) of needleless to ONU#i with reference to transmission buffer 4, then stop the transmission (step S2) of mailing to the downstream signal of ONU#i.It means, afterwards, the data mailing to ONU#i received via PHY7 from network is saved in transmission buffer 4.Then, the PON control part 2 of OLT1 sends request the descending electricity-saving state migration request (license) (step S3) of (or license) ONU#i to the migration of descending electricity-saving state (the 1st sleep pattern).PON control part 2 comprises in this descending electricity-saving state migration request dormancy time (length of one's sleep) t that continues descending electricity-saving state and sends.
The PON control part 2 of OLT1, after have sent descending electricity-saving state migration request, sends the transmission enabling signal (step S4) as being used for providing ONU#i the control message sending license.This transmission enabling signal is provided in order to ONU#i sends the response for descending electricity-saving state migration request.
In the ONU#i receiving descending electricity-saving state migration request, the descending electricity-saving state migration response receiving the response of request for descending electricity-saving state migration request as expression is sent to OLT1 (step S5) by PON control part 11.
In the OLT1 receiving descending electricity-saving state migration response, PON control part 2 arranges the timer (step S6) for measuring the t length of one's sleep, stops the distribution (step S7) to the transmission enabling signal of ONU#i.Then, if timer expiration (have passed through the t time) (step S8), then detect with or without the downlink data for ONU#i with reference to transmission buffer 4, if be detected as without downlink data (step S9), then stop the transmission (step S10) of mailing to the downstream signal of ONU#i.Then, PON control part 2 sends descending electricity-saving state migration request (step S11) again, sends enabling signal (step S12).
On the other hand, in the ONU#i receiving descending electricity-saving state migration request, if having sent descending electricity-saving state migration response, then arrange for measure comprise in descending electricity-saving state migration request the length of one's sleep t timer (step S13).Then, reception buffer 13 is made to move to electricity-saving state (step S14).In addition, downlink control message reception processing unit (the downlink control message processing capacity part etc. of Rx142, PON control part 11 of light transmitter-receiver 14) is made to move to electricity-saving state (descending electricity-saving state) (step S15).For the descending electricity-saving state set in step S14, step S15, by aftermentioned.
In ONU#i, if the timer expiration arranged in step s 13 (through the t time) (step S16), then the downlink control message reception processing unit moving to electricity-saving state in step S15 is made to move to usual state (step S17) from electricity-saving state.Herein, although downlink control message reception processing unit can receiving control message, but for device without the need to a part for work when receiving control message such as reception buffer 13 grade, continue electricity-saving state, ONU#i transfers to partial electricity-saving state (the 2nd sleep pattern).Then, if ONU#i receives the descending electricity-saving state migration request sent in step s 11, then descending electricity-saving state migration response is sent to OLT1 (step S18).
Using the process of above step S13 ~ step S18 as process A, during OLT1 does not detect that (not receiving) mails to the downlink data of ONU#i, repeatedly process A.During these process A repeatedly, for downlink control message reception processing unit, for t each length of one's sleep, revert to usual state once, but reception buffer 13 can continue to become electricity-saving state.
Herein, the descending electricity-saving state of ONU#i is described.In step S14, make reception buffer 13 move to electricity-saving state, in step S15, make downlink control message reception processing unit move to electricity-saving state, the electricity-saving state set is called the descending electricity-saving state of ONU#i in these 2 steps.In addition, reception buffer 13 and downlink control message reception processing unit downstream signal processing unit can be thought of as altogether, descending electricity-saving state the state that downstream signal processing unit moves to electricity-saving state can be thought of as.
In step S14, make reception buffer 13 move to electricity-saving state, in step S15, downlink control message reception processing unit is moved.The downlink control message reception processing unit moving to electricity-saving state in step S15 is the inscape relevant to the process of the control message that the OLT1 of the control message processing capacity part of Rx142, PON control part 11 from light transmitter-receiver 14 etc. sends.As mentioned above, even if when OLT1 does not detect state continuance more than the t length of one's sleep of the downlink data mailing to ONU#i, ensuing descending electricity-saving state migration request also sends as control message by OLT1 in step s 11, so herein, be divided into the part relevant to the process of control message and incoherent part and move to electricity-saving state.
In addition, in the example in figure 2, be divided into step S14 and step S15 and move to electricity-saving state, but also can not separated step, and move simultaneously.But, even if in this case, for downlink control message reception processing unit, also move to usual state after the expiry of the timer.
In addition, in step S14, be not only reception buffer 13, and the Tx162-2 of Tx162-1, PHY16-2 of PHY16-1 can be made also to move to electricity-saving state.And then, the device (signal processing unit) becoming electricity-saving state under the 2nd sleep pattern is not limited to these, as long as and do not need in the reception process of part or all control message, then can select arbitrary device and make it transfer to electricity-saving state.
As the concrete example of the moving method to descending electricity-saving state, there is method as following.Such as, when reception buffer 13 is made up of DDR (DoubleDataRate, Double Data Rate) memory, PON control part 11 makes DDR memory become disable (forbidding) by dropping into instruction to Memory Controller.In addition, PON control part 11 makes Rx142 become electricity-saving state by sending the instruction such as power-off or shutdown to the Rx142 of light transmitter-receiver 14.In addition, at the Tx162-2 of Tx162-1, the PHY16-2 for PHY16-1, when PHY16-1, PHY16-2 support the battery saving mode specified in such as IEEE802.3az, indicate the transfer to " LowPowerIdle (low-power consumption is left unused) " state.
Fig. 3 is the sequential chart of another example of the economize on electricity rate-determining steps that present embodiment is shown.Step S1 ~ step the S7 of the example of step S1 ~ step S7 and Fig. 2 is identical, but in the example in figure 3, after step s 7, OLT1 receives the transmission data (downlink data) mailing to ONU#i via PHY7 from network, be saved in transmission buffer 4 (step S21).That is, ONU#i is descending electricity-saving state, even if OLT1 have sent the downlink data mailing to ONU#i, due to the state that ONU#i not can receive, so OLT1 makes the downlink data mailing to ONU#i queue up (queue).Then, if the measurement of the timer arranged in step s 6 expires (through the t time) (step S8), then the descending electricity-saving state ending request of the end of indicating downlink electricity-saving state is sent to ONU#i (step S22) by PON control part 2.In addition, transmission enabling signal is sent to ONU#i (step S23) by PON control part 2.
On the other hand, in ONU#i, after step s 5, in the same manner as Fig. 2, the process of implementation step S13 ~ step S17.Then, if the PON control part 11 of ONU#i receives the descending electricity-saving state ending request sent in step S22, then by indicating the recovery to usual state to reception buffer 13, reception buffer 13 is made to move to usual state (step S24) from electricity-saving state.In addition, herein, show the example making reception buffer 13 become electricity-saving state, but when making the TX162-2 of Tx162-1, PHY16-2 of PHY16-1 also become electricity-saving state as mentioned above, for them, also move to usual state.
Then, the PON control part 11 of ONU#i is sent to OLT1 (step S25) using terminating response as the descending electricity-saving state of the response for descending electricity-saving state ending request.Receive descending electricity-saving state terminate respond OLT1 in, PON control part 2 read in transmission buffer 4 preserve the downlink data (step S26) mailing to ONU#i, the downlink data of reading is sent to ONU#i (step S27).After, carry out the communication under usual state (normal mode).
By such sequential is described above, carry out setting and the releasing of the descending electricity-saving state of ONU#i, but for the form of the control message used between OLT1 and ONU#i, below remark additionally.
Fig. 4 ~ Fig. 6 illustrates 3 PLOAM (PhysicalLayerOperationandMaintenance, physical layer operations and the maintenance) message for controlling sleep pattern.Wherein 2 PLOAM message are the message sent from OLT to ONU, are " Sleepmodechangeacknowledge " message and " Sleep " message.Remaining 1 sends " Sleepmodechangerequest " message from ONU to OLT.
Fig. 4 ~ Fig. 6 is the figure of the form that " Sleepmodechangeacknowledge " message and " Sleep " message are shown.In addition, Fig. 7,8 is the figure of the form that " Sleepmodechangerequest " message is shown.
" Sleepmodechangerequest " message of asking to the transfer of the electricity-saving state (sleep pattern) of self is sent to OLT by ONU.Message that if OLT receives " Sleepmodechangerequest ", then responsively, " Sleepmodechangeacknowledge " message is sent.In this " Sleepmodechangeacknowledge " message, as shown in Figure 5, FrameCounter1 (frame counter 1), FrameCounter4 (frame counter 4) comprise until from sleep pattern recover SuperFrame (superframe) Counter Value (be namely equivalent to until from sleep pattern recover time).
Fig. 4 ~ Fig. 8 is the example as getting synchronous unit and employ PLOAM message between OLT and ONU, but same power saving mode can also be applied to the PON system of IEEE specification.In IEEE802.3av, define the extended MAC control message suitable with PLOAM message.Fig. 9 illustrates message format example when employing extended MAC control message.As the message of asking from OLT, define descending electricity-saving state migration request and descending electricity-saving state ending request.For these message, responsively message, ONU makes the upper bit of News Category field (field) become " 1 " and send.As the message of asking from ONU, definition electricity-saving state migration request.As the parameter of request message, define only up, only descending, two-way.For this message, responsively message, OLT makes the upper bit of News Category field become " 1 ", specifies the length of one's sleep as parameter.
In the present embodiment, except from ONU request except the step of the transfer of sleep pattern, also from OLT1 to ONU#i instruction to the transfer of electricity-saving state.Therefore, compared to the step of the only sleep pattern of upstream data, the receiving equipment (such as reception buffer 13) of down direction can be made to continue energy-saving technology, power consumption can be reduced further.
On the other hand, as the form of the control message used in the sequential shown in Fig. 2 and Fig. 3, the message format of above-mentioned Fig. 4 ~ Fig. 9 also can be used.Such as, the descending electricity-saving state migration request sent as OLT1 and the control message of descending electricity-saving state ending request, also can use " Sleepmodechangeacknowledge " message shown in Fig. 4 and Fig. 5 form or according to its form.Such as, when descending electricity-saving state migration request, the P of 7Octet is become " 1 ", when descending electricity-saving state ending request, the P of 7Octet is become " 0 ".Herein, in explanation afterwards, the example using the message format shown in Fig. 9 is shown.
Next, the detailed step that the economize on electricity of OLT1 controls is described.Figure 10 is the flow chart of the example that the economize on electricity rate-determining steps that the OLT1 of present embodiment implements is shown.
As shown in Figure 10, PON control part 2 is with reference to transmission buffer 4, judge whether the acomia downlink data (step S31) toward ONU#i to be detected, when being judged as the acomia downlink data toward ONU#i not detected in step S31 (step S31 "No"), turn back to step S31.
When being judged as the acomia downlink data toward ONU#i being detected in step S31 (step S31 "Yes"), PON control part 2 stops the transmission (step S32) of the downstream signal to ONU#i, and descending electricity-saving state migration request is sent to ONU#i (step S33).Next, send enabling signal (step S34) to ONU#i, judge whether to receive descending electricity-saving state migration response (step S35) from ONU#i.When being judged as in step s 35 not receiving descending electricity-saving state migration response (step S35 "No"), turn back to step 31, when receiving descending electricity-saving state migration response, arrange for measure specify in descending electricity-saving state migration request the length of one's sleep t timer (step S36), stop the distribution (step 37) of the transmission enabling signal to ONU#i.
PON control part 2 judges whether the timer arranged in step S36 expires (through the t time) (step S38), when being judged as that timer does not expire (step S38 "No"), and implementation step S38 again.
When being judged as timer expiration (step S38 "Yes"), PON control part 2, with reference to transmission buffer 4, judges whether the acomia downlink data (step S39) toward ONU#i to be detected.In addition, when judging whether the downlink data mailing to ONU#i, method with reference to the data on transmission buffer 4 is an example of this determination methods, also can pass through additive method (such as, data sending request, notice etc. from network side) and judge.
In step S39, when the acomia downlink data toward ONU#i not detected (step S39 "No"), descending electricity-saving state ending request is sent to ONU#i (step S40), send enabling signal (step S41) to ONU#i, judge whether that receiving descending electricity-saving state from ONU#i terminates to respond (step S42).Be judged as receiving (step S42 "Yes") descending electricity-saving state terminates to respond in step S42, again start the transmission (step S43) of the downstream signal (comprising the signal of downlink data) to ONU#i.On the other hand, be judged as not receiving (step S42 "No") descending electricity-saving state terminates to respond in step S42, turn back to step S41.In addition, when the acomia downlink data toward ONU#i being detected in step S39 (step S39 "Yes"), step S32 is turned back to.
Next, the detailed step that the economize on electricity of ONU#i controls is described.Figure 11 is the flow chart of the example that the economize on electricity rate-determining steps that the ONU#i of present embodiment implements is shown.In ONU#i, PON control part 11 judges whether to receive descending electricity-saving state migration request (step S51) from OLT1.
In step s 51, being judged as receiving descending electricity-saving state migration request from OLT1 (step S51 "Yes"), PON control part 11 judges whether to receive and sends enabling signal (step S52).In step s 51, being judged as not receiving descending electricity-saving state migration request from OLT1 (step S51 "No"), implementation step S51 again.
Be judged as receiving in step S52 when sending enabling signal (step S52 "Yes"), PON control part 11 to OLT1 send descending electricity-saving state migration response (step S53), arrange for measure specify in descending electricity-saving state migration request the length of one's sleep t timer (step S54).
Then, PON control part 11 makes reception buffer 13 move to electricity-saving state (step S55), and, make downlink control message reception processing unit move to electricity-saving state (step S56).In addition, in step S55, also can, in the same manner as above-mentioned steps S14, the Tx162-2 of Tx162-1, PHY16-2 of PHY16-1 be made also to move to electricity-saving state.
Next, PON control part 11 judges whether timer expires (step S57), when being judged as not expiring (step S57 "No"), and implementation step S57 again.When being judged as timer expiration (step S57 "Yes"), downlink control message reception processing unit is made to move to usual state (step S58).
Then, PON control part 11 judges whether to receive descending electricity-saving state ending request (step S59) from OLT1, when being judged as not receiving (step S59 "No"), and implementation step S59 again.
When being judged as receiving descending electricity-saving state ending request from OLT1 in step S59 (step S59 "Yes"), PON control part 11 makes reception buffer 13 move to usual state (step S60), send descending electricity-saving state to OLT1 to terminate to respond (step S61), turn back to step S51.
In addition, in the present embodiment, PON control part 11 have make reception buffer 13 and downlink control message reception processing unit move to electricity-saving state (be designated as and transfer to electricity-saving state) function and return to usual state function, namely as the function of descending power-saving control unit, but also can possess descending power-saving control unit (controller) independently with PON control part 11, descending power-saving control unit implements part or all of the process that implements of PON control part 11 that above-mentioned economize on electricity controls.
As mentioned above, in the present embodiment, OLT1 sends descending electricity-saving state migration request when the downlink data of undirected ONU#i to ONU#i, and the ONU#i receiving descending electricity-saving state migration request moves to descending electricity-saving state.For this reason, during there is not the downlink data from OLT1 to ONU#i, ONU#i can make inscape required in the process of downlink data such as reception buffer 13 grade become energy-saving technology, can reduce the power consumption of ONU#i than ever.
In addition, the PON system of present embodiment can separate as required make the reception of control message and downlink data become termination the 1st sleep pattern and with can receiving control message ground standby and do not carry out the 2nd sleep pattern of the reception process of downlink data.Therefore, even if when ONU#i is in electricity-saving state, when needing intermittently to become accepting state, the economize on electricity under this accepting state also can be realized.
Execution mode 2.
Figure 12 is the sequential chart of an example of the economize on electricity rate-determining steps of the execution mode 2 that PON system of the present invention is shown.The structure of the PON system of present embodiment is identical with the structure of the PON system of execution mode 1.In addition, the structure of OLT and ONU of present embodiment is also identical with OLT1 and the ONU10-1 ~ ONU10-3 of execution mode 1.Below, the point different from execution mode 1 is described.
In execution mode 1, OLT1 sends descending electricity-saving state migration request when the acomia downlink data toward ONU#i to ONU#i, but in the present embodiment, and then, when ONU#i meets defined terms, up electricity-saving state migration request is sent to OLT1.
In addition, in execution mode 1, describe and move to namely relevant to the communication of the up direction sleep pattern of the request of sleep pattern from ONU, but in execution mode 1, do not determine the opportunity that ONU sends in the migration request when sending request and the sleep pattern moving to sleep pattern.In the present embodiment, illustrate this opportunity, realize the migration request step of the sleep pattern of ONU.
In the present embodiment, ONU#i determines whether upstream data, when being judged as not having upstream data, sends up electricity-saving state migration request.As being judged as without Rule of judgment during upstream data, such as, the methods such as the LPI reception by specifying in such as IEEE802.3az can be set and detect that the terminal (being terminal 20-1,20-2) be connected with self all enters into the situation of electricity-saving state or detects that all power of the terminal be connected with self becomes the situation of OFF (not working) or within certain period, do not receive the situation etc. of upstream data from the terminal be connected with self herein.In the present embodiment, PHY16-1,16-2 implement these and judge, judged result are notified PON control part 11.That is, in the present embodiment, PHY16-1,16-2 have the function as detecting with or without the upstream data detecting unit of the upstream data from terminal 20-1,20-2.
Use Figure 12, the economize on electricity rate-determining steps of present embodiment is described.First, in ONU#i, PHY16-1,16-2 are judged as without upstream data according to above-mentioned Rule of judgment, its judged result are notified PON control part 11 (step S71).PON control part 11 makes transmission buffer 12 move to electricity-saving state (step S72).
Next, if the PON control part 11 of ONU#i receives from OLT1 send enabling signal (step S73), then up electricity-saving state migration request is sent to OLT1 (step S74).
The up economize on electricity migration response comprising the T length of one's sleep (the continuation time of up electricity-saving state) is sent to ONU#i (step S75) by the PON control part 2 receiving the OLT1 of up electricity-saving state migration request.Then, PON control part 2 arranges the timer (step S76) for measuring the T length of one's sleep, stops the distribution (step S77) to the transmission enabling signal of ONU#i.Afterwards, if PON control part 2 timer expiration (through T time) (step S78), then transmission enabling signal is sent to ONU#i (step S79).
On the other hand, receive up economize on electricity migration response ONU#i in, PON control part 11 arrange for measure up economize on electricity migration response in comprise the length of one's sleep T timer (step S80).Then, PON control part 11 makes uplink control message transmission processing portion (the uplink control message processing capacity part etc. of Tx141, PON control part 11 of light transmitter-receiver 14) move to electricity-saving state (step S81).
In addition, the inscape that the uplink control message processing capacity part etc. that uplink control message transmission processing portion has Tx141, PON control part 11 of light transmitter-receiver 14 transmits control message to OLT1 for ONU#i.In addition, the state making transmission buffer 12 and uplink control message transmission processing portion become electricity-saving state is called up electricity-saving state.In addition, transmission buffer 12 and uplink control message transmission processing portion can be thought of as upward signal processing unit altogether, up electricity-saving state can be thought of as the state that upward signal processing unit moves to electricity-saving state.
Afterwards, PON control part 11 timer expiration if (through T time) (step S82), uplink control message transmission processing portion is made to move to usual state (step S83), receive the transmission enabling signal sent in step S79, then up electricity-saving state migration request is sent to OLT1 (step S84).
Using above step S75 ~ step S84 as treatments B, during ONU#i is judged as without upstream data, repeatedly implement treatments B.During this treatments B repeatedly, uplink control message transmission processing portion returns to usual state once for T each length of one's sleep, but up transmission buffer 12 can continue electricity-saving state.
Figure 13 is the sequential chart of another example of the economize on electricity rate-determining steps that present embodiment is shown.First, in the same manner as the step S71 ~ step S81 to illustrate in fig. 12, implementation step S71 ~ step S81.
In the example of Figure 13, in ONU#i, after step S81, produce upstream traffic, PHY16-1,16-2 have been judged as upstream data, its judged result are notified PON control part 11 (step S91).PON control part 11 makes transmission buffer 12 move to usual state, the upstream data received is saved in transmission buffer 12 (step S92) from terminal 20-1,20-2.
Then, timer expiration if (through T time) (step S83), receive the transmission enabling signal sent in step S79, then PON control part 11 reads the upstream data of preservation in transmission buffer 12 and is sent to OLT1 (step S93).After, implement common communication.
In addition, as the control message of above-mentioned up electricity-saving state migration request, up economize on electricity migration response, not only the message shown in Fig. 9 be can use, " Sleepmodechangerequest " message shown in Fig. 7, Fig. 8, " Sleepmodechangeacknowledge " message shown in Fig. 4 ~ Fig. 6 also can be used respectively.But, when also using these message in the control of the descending electricity-saving state of execution mode 1, need the packets of information being used for the message identifying the message relevant to up electricity-saving state or be correlated with descending electricity-saving state to be contained in form.
Next, the detailed step that the economize on electricity of OLT1 controls is described.Figure 14 is the flow chart of the example that the economize on electricity rate-determining steps that the OLT1 of present embodiment implements is shown.As shown in figure 14, the time that the transmission planning to be supplied to each ONU in the same manner as the PON control part 2 of OLT1 controls with PON is in the past permitted, enabling signal (step S101) is sent to ONU#i.Next, PON control part 2 judges whether to receive up electricity-saving state migration request (step S102) from ONU#i.
Being judged as in step s 102 not receiving up electricity-saving state request from ONU#i (step S102 "No"), turn back to step S101.Being judged as in step s 102 receiving up electricity-saving state migration request from ONU#i (step S102 "Yes"), PON control part 2 stops the distribution (step S103) to the transmission enabling signal of ONU#i.Then, the electricity-saving state migration response comprising the T length of one's sleep is sent to ONU#i (step S104) by PON control part 2, arranges the timer (step S105) for measuring T.
Next, PON control part 2 judges whether expired (through T time) (the step S106) of timer, when being judged as timer expiration (step S106 "Yes"), turns back to step S101.In addition, when being judged as that timer does not expire (step S106 "No"), implementation step S106 again.
Next, the detailed step that the economize on electricity of ONU#i controls is described.Figure 15 is the flow chart of the example that the economize on electricity rate-determining steps that the ONU#i of present embodiment implements is shown.In ONU#i, PHY16-1,16-2 Rule of judgment with presence or absence of above-mentioned upstream data judges whether without upstream data, its judged result is notified PON control part 11 (step S111).When judged result is the judged result indicating upstream data (step S111 "No"), transmission buffer 12 is moved to usual state (step S114) by PON control part 11, and enters into step S115.
On the other hand, in step S111, detect without (step S111 "Yes") when upstream data, PON control part 11 judges whether transmission buffer 12 is electricity-saving state (step S112).When being judged as that transmission buffer 12 is not electricity-saving state (step S112 "No"), PON control part 11 makes transmission buffer 12 move to electricity-saving state (step S113), enters into step S115.When being judged as that transmission buffer 12 is electricity-saving states (step S12 "Yes"), enter into step S115.
In step sl 15, PON control part 11 judges whether to receive from OLT1 to send enabling signal (step S115).When being judged as not receiving transmission enabling signal (step S115 "No"), turn back to step S111.
Be judged as in step sl 15 receiving when sending enabling signal (step S115 "Yes"), PON control part 11 judges whether transmission buffer 12 is electricity-saving state (step S116).When being judged as that transmission buffer 12 is not electricity-saving state (step S116 "No"), PON control part 11 judges in transmission buffer 12, whether save data (step S123).
When being judged as saving data in step S123 in transmission buffer 12 (step S123 "Yes"), the upstream data preserved in transmission buffer 12 is sent to OLT1 (step S124) by PON control part 11.When being judged as not preserving data in step S123 in transmission buffer 12 (step S123 "No"), turn back to step S111.
In addition, when being judged as that in step S116 transmission buffer 12 is electricity-saving states (step S116 "Yes"), PON control part 11 sends up electricity-saving state migration request (step S117) to OLT1.Then, PON control part 11 judges whether to receive up electricity-saving state migration response (step S118) from OLT1, when being judged as not receiving (step S118 "No"), turns back to step S111.
When being judged as receiving up electricity-saving state migration response from OLT1 in step S118 (step S118 "Yes"), PON control part 11 makes uplink control message transmission processing portion move to electricity-saving state (step S119), arrange for measure up electricity-saving state migration response in comprise the length of one's sleep T timer (step S120), enter into step S121, PON control part 11 judge for measure up electricity-saving state the length of one's sleep T timer whether expire (step S121).In step S121 for measure up electricity-saving state the length of one's sleep T timer do not expire (step S121 "No"), turn back to step 121.In step S121 for measure up electricity-saving state the length of one's sleep T timer expiration (step S121 "Yes"), PON control part 11 makes uplink control message transmission processing portion move to usual state (step S122).
In addition, in the above description, the opportunity describing the migration of up electricity-saving state is different with the opportunity that descending electricity-saving state moves, so carry out the example of the control of the control of the descending electricity-saving state migration of execution mode 1 and the up electricity-saving state migration of present embodiment independently, but such as, when the terminal be connected with ONU#i all becomes OFF due to obstacle etc., it is also conceivable to the electricity-saving state migration simultaneously implementing both direction.Under these circumstances, send up electricity-saving state migration request from ONU, and send descending electricity-saving state migration request, afterwards, transfer to descending electricity-saving state by the step same with execution mode 1.In addition, ONU also can not simultaneously send up electricity-saving state migration request and descending electricity-saving state migration request, and sends independently.
In addition, and then, yet can during ONU#i becomes descending electricity-saving state, the downlink data mailing to ONU#i arriving OLT1 be saved in transmission buffer 4 and abandon.In this case, such as, comprise the information representing and could abandon downlink data in advance in the descending electricity-saving state migration request sent from ONU, OLT1 judges to abandon or preserve according to this information.
In addition, in the above description, carry out this two side of control of the control of the descending electricity-saving state migration of execution mode 1 and the up electricity-saving state migration of present embodiment, but also only can implement the control of the up electricity-saving state migration illustrated in the present embodiment.
In addition, in the present embodiment, PON control part 11 possess make transmission buffer 12 and uplink control message transmission processing portion move to electricity-saving state (be designated as and transfer to electricity-saving state) function and revert to usual state function, namely as the function of up power-saving control unit, but also can be configured to possess up power-saving control unit independently with PON control part 11, up power-saving control unit implements part or all of the process that implements of PON control part 11 that above-mentioned economize on electricity controls.
As mentioned above, in the present embodiment, when PHY16-1,16-2 of ONU#i are judged as having no way of upstream data that terminal sends, transmission buffer 12 is made to move to electricity-saving state, send up electricity-saving state migration request to OLT1, OLT1 sends the up electricity-saving state migration response of license ONU#i to the migration of up electricity-saving state.Then, in ONU#i, if receive electricity-saving state migration response, then make uplink control message transmission processing portion move to electricity-saving state.Therefore, in ONU#i, the effect of execution mode 1 can be realized, and also can reduce power consumption for the communication of up direction.
Utilizability in industry
As mentioned above, PON system of the present invention and electricity saving method are useful to the PON system of seeking energy-saving technology, the PON system that the state being specially adapted to not exist communication data likely continues for a long time.
Claims (20)
1. a PON system is the PON system using optical link docking station side terminator and entrant's side terminator,
Described entrant's side terminator possesses:
Optical transmitter, sends light signal to described station-side terminator; And
Upstream data handling part, carries out the process of the upstream data sent to described station-side terminator via described optical transmitter,
Can with battery saving mode and the normal mode action that the transmission and reception of data can be carried out, wherein, described battery saving mode possesses the 1st battery saving mode and the 2nd battery saving mode that described optical transmitter are set to power down mode, wherein, in the 2nd battery saving mode, can between described station-side terminator transmission and reception control message, when receiving control message, control message according to receiving performs an action, and described upstream data handling part is set to power down mode
Described station-side terminator possesses:
Control message transmitting element, transmits control message to described entrant's side terminator; And
Control unit, uses the control message sent via described control message transmitting element, controls the migration between described normal mode and described battery saving mode to described entrant's side terminator.
2. PON system according to claim 1, is characterized in that,
Described entrant's side terminator possesses:
Optical receiver, receives the light signal from described station-side terminator; And
Downlink data handling part, carries out the process of the downlink data received from described station-side terminator via described optical receiver,
In described 1st battery saving mode, described optical receiver is set to power down mode,
In described 2nd battery saving mode, described downlink data handling part is set to power down mode.
3. the PON system according to claims 1 or 2, is characterized in that,
Described entrant's side terminator makes described 1st battery saving mode continue predetermined time, after have passed through described predetermined time, moves to described 2nd battery saving mode,
In the process continuing described 2nd battery saving mode, if the control message by sending from described station-side terminator, when the notified end of battery saving mode, move to described normal mode.
4. the PON system according to any one in claim 1-3, is characterized in that,
Described entrant's side terminator makes described 1st battery saving mode continue predetermined time, after have passed through described predetermined time, moves to described 2nd battery saving mode,
In the process continuing described 2nd battery saving mode, when not being judged as the end of battery saving mode, move to described 1st battery saving mode.
5. the PON system according to claim 3 or 4, is characterized in that,
The predetermined time that described 1st battery saving mode is continued determines according to from the length of one's sleep that described station-side terminator notifies.
6. the PON system according to any one in claim 1-5, is characterized in that,
Described upstream data handling part possesses at least one party in upstream data storage unit and signal processing unit,
Described upstream data storage unit preserves the upstream data sent from described optical transmitter,
Described signal processing unit to from the terminal reception be connected with this device to upstream data process.
7. the PON system according to any one in claim 2-6, is characterized in that,
Described downlink data handling part possesses at least one party in downlink data storage unit and signal processing unit,
Described downlink data storage unit preserves the downlink data received by described optical receiver,
Described signal processing unit to received by described optical receiver, the downlink data that sends to the terminal be connected with this device processes.
8. entrant's side terminator, can be connected with station-side terminator via optical link, possess:
Optical transmitter, sends light signal to described station-side terminator; And
Upstream data handling part, carries out the process of the upstream data sent to described station-side terminator via described optical transmitter,
It is characterized in that,
Can with battery saving mode and the normal mode action that the transmission and reception of data can be carried out, wherein, described battery saving mode possesses the 1st battery saving mode and the 2nd battery saving mode that described optical transmitter are set to power down mode, wherein, in the 2nd battery saving mode, can between described station-side terminator transmission and reception control message, when receiving control message, control message according to receiving performs an action, and described upstream data handling part is set to power down mode
Described entrant's side terminator possesses power control unit, and this power control unit, according to the control message sent from described station-side terminator, controls the migration between described normal mode and described battery saving mode.
9. entrant's side terminator as claimed in claim 8, is characterized in that,
Possess:
Optical receiver, receives the light signal from described station-side terminator; And
Downlink data handling part, carries out the process of the downlink data received from described station-side terminator via described optical receiver,
In described 1st battery saving mode, described optical receiver is set to power down mode,
In described 2nd battery saving mode, described downlink data handling part is set to power down mode.
10. the entrant's side terminator as described in claim 8 or 9, is characterized in that,
Described power control unit makes described 1st battery saving mode continue predetermined time, after have passed through described predetermined time, moves to described 2nd battery saving mode,
In the process continuing described 2nd battery saving mode, if the control message by sending from described station-side terminator, when the notified end of battery saving mode, move to described normal mode.
11. entrant's side terminators as described in any one in claim 8-10, is characterized in that,
Described power control unit makes this device continue described 1st battery saving mode predetermined time, after have passed through described predetermined time, makes this device move to described 2nd battery saving mode,
In the process continuing described 2nd battery saving mode, when not being judged as the end of battery saving mode, move to described 1st battery saving mode.
12. entrant's side terminators as described in claim 10 or 11, is characterized in that,
The predetermined time that described 1st battery saving mode is continued determines according to from the length of one's sleep that described station-side terminator notifies.
13. entrant's side terminators as described in any one in claim 8-12, is characterized in that,
Possess: upstream data detecting unit, judge whether the upstream data sent to described station-side terminator from the terminal be connected with this device,
Described province electric unit controls, make when described upstream data detecting unit is judged as not having upstream data, the migration request message of asking to the migration of described battery saving mode is sent to described station-side terminator, when being received migration response message by described station-side terminator, described 1st battery saving mode is made to continue predetermined time according to described migration response message.
14. entrant's side terminators as claimed in claim 13, is characterized in that,
Described upstream data detecting unit when the idle situation of the terminal be connected with this device, detect the terminal be connected with this device be in power down mode situation or during specifying not from the more than one situation when communication data that the terminal be connected with this device arrives, be judged as without upstream data.
15. 1 kinds of station-side terminators, described station-side terminator can be connected with entrant's side terminator via optical link, wherein, described entrant's side terminator can with battery saving mode and the normal mode action can carrying out the transmission and reception of data, wherein, described battery saving mode possesses the 1st battery saving mode and the 2nd battery saving mode that optical transmitter are set to power down mode, wherein, in the 2nd battery saving mode, can transmission and reception control message, when receiving control message, control message according to receiving performs an action, the upstream data handling part processed upstream data is set to power down mode,
The feature of described station-side terminator is to possess:
Control message transmitting element, transmits control message to described entrant's side terminator; And
Control unit, uses the control message sent via described control message transmitting element, controls the migration between described normal mode and described battery saving mode to described entrant's side terminator.
16. station-side terminators as claimed in claim 15, is characterized in that,
Optical receiver is set to power down mode by described entrant's side terminator in described 1st battery saving mode, in described 2nd battery saving mode, the downlink data handling part processed downlink data is set to power down mode.
17. station-side terminators as claimed in claim 16, is characterized in that,
Described control unit, before sending descending transmission data to described entrant's side terminator, sends the control message notifying the end of described battery saving mode,
Described entrant's side terminator is controlled the state for described transmission data can be received.
18. station-side terminators as described in any one in claim 15-17, is characterized in that,
Also possess transmission data saving unit, this transmission data saving unit for preserving the transmission data sent to described entrant's side terminator,
Described control unit when being judged as the transmission data not mailing to described entrant's side terminator in described transmission data saving unit, to this entrant's side terminator send request described optical receiver is set to power down mode during predetermined time power down mode migration request as described control message.
19. station-side terminators as claimed in claim 18, is characterized in that,
Described control unit is after have sent power down mode migration request to described entrant's terminal installation, when receiving the transmission data mailing to this entrant's side terminator, these transmission data are kept in described transmission data saving unit, after have passed through the described predetermined time of asking in sent power down mode migration request, the power down mode ending request of the end of instruction power down mode is sent to this entrant's side terminator, and after have sent power down mode migration request to described entrant's terminal installation, when being judged as the transmission data not mailing to this entrant's side terminator in described transmission data saving unit, again send power down mode migration request to this entrant's side terminator.
Electricity saving method in the PON system that 20. 1 kinds of electricity saving methods are station-side terminators to be connected with multiple entrant's side terminator by optical link, is characterized in that, comprising:
1st forwarding step, described station-side terminator sends license to described entrant's side terminator becomes dormant grant message and as control message in the stipulated time;
Described entrant's side terminator, when receiving described control message, in the described stipulated time, stops the transmission of control message and upstream data, transfers to the step of the 1st sleep pattern;
2nd forwarding step, described station-side terminator, after the described stipulated time terminates, sends described control message;
Described entrant's side terminator transfers to the step of the 2nd sleep pattern after the described stipulated time terminates, and under described 2nd sleep pattern, can receive described control message ground standby and do not carry out the transmission processing of described upstream data; And
Described entrant's side terminator, according to the control message received under described 2nd sleep pattern, judges to transfer to described 1st sleep pattern, still transfer to the step of the normal mode that can receive described control message and described downlink data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510962554.4A CN105357094B (en) | 2009-08-21 | 2009-08-21 | PON system, entrant's side terminator, station-side terminator and electricity saving method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009801610401A CN102577297A (en) | 2009-08-21 | 2009-08-21 | Pon system, subscriber-end terminal apparatus, station-end terminal apparatus and power saving method |
| CN201510962554.4A CN105357094B (en) | 2009-08-21 | 2009-08-21 | PON system, entrant's side terminator, station-side terminator and electricity saving method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801610401A Division CN102577297A (en) | 2009-08-21 | 2009-08-21 | Pon system, subscriber-end terminal apparatus, station-end terminal apparatus and power saving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105357094A true CN105357094A (en) | 2016-02-24 |
| CN105357094B CN105357094B (en) | 2019-06-14 |
Family
ID=55346238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510962554.4A Active CN105357094B (en) | 2009-08-21 | 2009-08-21 | PON system, entrant's side terminator, station-side terminator and electricity saving method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105357094B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490824A (en) * | 2020-03-11 | 2020-08-04 | 普联技术有限公司 | Energy-saving method and device for optical communication equipment, optical communication equipment and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859438A (en) * | 2005-09-23 | 2006-11-08 | 华为技术有限公司 | Operation method for passive optic network user terminal |
| CN101373981A (en) * | 2007-08-24 | 2009-02-25 | 上海兆富通信技术有限公司 | Wireless searching and positioning apparatus based on wireless awakening technology and energy consumption control method thereof |
-
2009
- 2009-08-21 CN CN201510962554.4A patent/CN105357094B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859438A (en) * | 2005-09-23 | 2006-11-08 | 华为技术有限公司 | Operation method for passive optic network user terminal |
| CN101373981A (en) * | 2007-08-24 | 2009-02-25 | 上海兆富通信技术有限公司 | Wireless searching and positioning apparatus based on wireless awakening technology and energy consumption control method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490824A (en) * | 2020-03-11 | 2020-08-04 | 普联技术有限公司 | Energy-saving method and device for optical communication equipment, optical communication equipment and storage medium |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105357094B (en) | 2019-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102577297A (en) | Pon system, subscriber-end terminal apparatus, station-end terminal apparatus and power saving method | |
| CN102474441B (en) | Communication system, station-side optical circuit terminating apparatus, user-side optical circuit terminating apparatus, control apparatus, and communication method | |
| CN102907047B (en) | Communication system, station side communication device, user side communication device, communication method, and control device | |
| EP1940051B1 (en) | A method for operating pon user terminal and a pon user terminal device | |
| EP2735169B1 (en) | Energy efficiency and cost-efficient protection in passive optical networks | |
| CN102170598B (en) | Method of recovery from sleep state of an ONU in a PON system capable of power saving | |
| US9270406B2 (en) | Communication method, optical communication system, station-side optical-line terminal apparatus, and user-side optical-line terminal apparatus | |
| CN101778314B (en) | Optical communication system and method for operating the same | |
| US9788270B2 (en) | Optical-wireless access system | |
| CN105659542B (en) | Data transfer control method, passive optical network equipment and device, passive optical network | |
| CN104662845A (en) | Optical wireless access system | |
| CN102045110A (en) | Optical communication system and communication bandwidth control method | |
| CN101969584A (en) | Optical network unit (ONU) energy-saving method for improving bandwidth utilization rate | |
| US9379840B2 (en) | Energy efficient dynamic bandwidth allocation for optical networks | |
| KR102061498B1 (en) | Control method for onu in sleep mode | |
| US20140133843A1 (en) | Optical line terminal and optical network unit for supporting sleep mode thereof | |
| CN105357094A (en) | PON (passive optical network) system, entrant side terminal device, station side terminal device and electric power saving method | |
| JP5456131B2 (en) | Communication method, optical communication system, user side optical line terminator, station side optical line terminator | |
| CN103731762B (en) | The system and method for advanced power management for optical network terminal system on chip | |
| CN103650425A (en) | Optical line terminal, system for controlling electric power conservation, and method for controlling electric power conservation | |
| JP5607206B2 (en) | PON system, subscriber-side termination device, station-side termination device, control device, and power saving method | |
| JP2014110581A (en) | Passive optical network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |