CN101197627A - Energy-saving operation method and system for passive optical network service - Google Patents
Energy-saving operation method and system for passive optical network service Download PDFInfo
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Abstract
The invention relates to an energy saving operation method for passive optical network services, which relates to an OLT and a plurality of ONUs which are butted with each other through an ODN in a PON system. The invention comprises the following steps: firstly, the OLT collects uplink business information and downlink business information in the PON system and equipment state information of the ONUs, comprehensively judges whether each business stream accords with conditions for entering into energy saving state according to the collected information, and transmits command messages to the ONUs in which the business streams are located according to judgment results; secondly, the ONUs switch corresponding business processing modules in the ONUs to energy saving running state or normal running state according to the received command messages. The invention improves integrity and accuracy of management through monitoring and unified management of uplink businesses and downlink businesses in a PON and ONU states by the OLT, and can be combined with business certification and charging; moreover, not only ONU design is simplified but also the energy saving operation method is favorable for intercommunication between the ONUs and the OLT of different factories.
Description
Technical field
The present invention relates to passive optical network technique, relate in particular to energy-saving operating method and system professional in the passive optical network.
Background technology
EPON (PON, Passive Optical Network) technology is the optical fiber access technology of a kind of point to multiple spot, as shown in Figure 1, the PON system is by the optical line terminal (OLT of local side, Optical LineTerminal), optical network unit ONU (ONU, the Optical Network Unit of user side; Be ONU 1 to ONU n among Fig. 1) and Optical Distribution Network (ODN, Optical Distribution Network) composition.So-called EPON is meant that ODN between OLT and ONU is without any active electronic equipment.General its descending employing time division multiplexing (TDM, Time Division Multiplexing) broadcast mode, up employing time division multiple access inserts (TDMA, Time Division Multiple Access) mode, and can form topological structures (typical structure is a tree structure) such as tree type, star-like and bus-type neatly.
Classify from the content of carrying, the PON technology mainly comprises: based on the EPON (APON of asynchronous transfer mode, ATM Based PONs), based on the EPON (EPON of Ethernet, Ethernet Based PONs) and gigabit passive optical network (GPON, Gigabit PONs) etc.
In passive optical network, the consumption of the energy mainly comprises three aspects: the decay consumption of local side apparatus (mainly being OLT), terminal equipment (mainly being ONU), middle ODN network.Wherein, the energy resource consumption of local side apparatus and terminal equipment is bigger, is caused by the device operation.The consumption of middle ODN network is less, is because the decay of laser in optical fiber causes.Because the point of EPON is to the multiple spot characteristic, the many terminal equipments of quantity are arranged below the local side apparatus, and terminal equipment can be owing to burying wall or needing 24 hour start because answer the call outward, if do not take conservation measures, its energy resource consumption is very large.Therefore, reduce the energy consumption of terminal equipment, have very important significance.
In existing P ON terminal energy-saving scheme, by ONU the business datum of self is detected usually, when detecting it and have only the low volume data service operation, ONU is the power save mode operation to keep low speed to connect just, thereby reaches the purpose that terminal equipment is saved the energy.
From different perspectives, there is following shortcoming in existing P ON terminal energy-saving scheme:
(1) considers from energy-conservation angle, can make ONU equipment complicated; Because each ONU need increase the functional module that business datum is detected and judges in real time, increased the complexity and the manufacturing cost of ONU equipment, and can increase the ONU energy consumption accordingly.
(2) consider from professional status detection angle, be difficult for realizing; Owing in the PON system, exist multiple business simultaneously,, relate to many aspects such as physical layer, data link layer and network layer to the service operation status detection.If ONU handles the information of many aspects simultaneously, complexity is difficult to greatly realize.
(3) consider from the angle that interconnects, be unfavorable for the butt joint between the equipment; Because the ONU equipment of different manufacturers may adopt different detection methods, need the different parameter information of OLT configuration, be unfavorable for the butt joint between OLT and the ONU thus.
Summary of the invention
Technical problem to be solved by this invention provides a kind of energy-saving operating method and system of passive optical network service, can overcome the deficiency in the existing P ON terminal energy-saving scheme, take all factors into consideration the characteristic of PON system, under traffic affecting prerequisite not, reduce the energy consumption of ONU effectively.
In order to solve the problems of the technologies described above, the invention provides a kind of energy-saving operating method of passive optical network service, relate to the optical line terminal OLT and one or more network element ONU that pass through Optical Distribution Network ODN in the passive optical network PON system and dock mutually, this method comprises the steps:
(a) OLT collects uplink and downlink business information in the PON system and the status information of equipment of ONU, and whether meet the condition that enters power save mode according to every Business Stream of informix judgement of collecting, send command message according to court verdict to the ONU at Business Stream place;
(b) ONU switches to energy-saving run state or normal operating condition according to the command message of receiving with corresponding service processing module in the ONU.
Further, preceding step: the OLT that also comprises is provided with the judgment condition that each bar Business Stream enters power save mode in step (a), and determines that each ONU supports energy-conservation ability;
The informix that this judgment condition is collected according to step (a) is set up, the information of collecting comprises: the uplink and downlink flow information of each bar business, professional termination or rebulid information, ONU status information of equipment and comprise the service configuration information of forcing to be provided with operational mode and forced termination business;
Step (a) is confirming that ONU supports just to adjudicate under the energy-conservation prerequisite.
Further, step (a) meets the condition that enters power save mode at the described Business Stream of judgement, confirms further that then Business Stream also is not in the energy-saving run state, and just the ONU to the Business Stream place sends the described command message that enters the energy-saving run state; Perhaps, when the judgement Business Stream does not meet the condition that enters power save mode, confirm further that then Business Stream has been in the energy-saving run state, just the ONU to the Business Stream place sends the command message that enters normal operating condition; The condition that enters power save mode comprises: the uplink and downlink flow of Business Stream is less than a threshold value, and perhaps business stops, and perhaps the ONU equipment state is not enough to support normal operation, and perhaps Business Stream is forced to be provided with energy conservation model or is forced to and stops;
ONU is after receiving the command message that enters the energy-saving run state for step (b), and the corresponding service processing module in the control ONU switches to the energy-saving run state from normal operating condition; ONU is after receiving the command message that enters normal operating condition, and the corresponding service processing module in the control ONU switches to normal operating condition from the energy-saving run state.
Further, regularly inquiry mechanism or down trigger mechanism are adopted in the collection of step (a) OLT; Wherein, regularly inquiry is by timing active collection information termly is set; Down trigger is that user port connection, external power supply interruption and professional the connection have been finished as interrupt source Event triggered acquisition of information; The state change information of ONU comprises: the various information that initiatively reports by ONU to OLT, or by the various information of OLT to the ONU inquiry.
Further, dispose buffer respectively in OLT and ONU, wherein, each generic module that the buffer of OLT is used for buffer memory ONU switches to the downlink service data that the normal operating condition process is received by described energy-saving run state; Each generic module that the buffer of ONU is used for buffer memory ONU switches to the uplink business data that the normal operating condition process is received by the energy-saving run state.
Further, the described all kinds of Service Processing Modules in the ONU comprise: one or more in voice service processing module, video traffic processing module or the data service processing module, or the module that is combined by a plurality of described Service Processing Modules.
In order to solve the problems of the technologies described above, the invention provides a kind of energy-saving run system of passive optical network service, comprising: the line terminal OLT that achieves a butt joint by Optical Distribution Network ODN and one or more optical network unit ONU; Wherein:
OLT, be used for the uplink and downlink of passive optical network PON system equipment state professional and ONU is detected, and comprehensively adjudicate Business Stream according to the various information that detects and whether meet the condition that enters power save mode, send command message according to court verdict to the ONU at Business Stream place;
One or more ONU is used for that the content control according to this command message switches to energy-saving run state or normal operating condition with the corresponding service processing module in the ONU after receiving the command message of OLT.
Further, this meets the condition that enters power save mode and comprises: the uplink and downlink flow of Business Stream is less than a threshold value, perhaps business stops, and perhaps the ONU equipment state is not enough to support normal operation, and perhaps Business Stream is forced to be provided with energy conservation model or is forced to and stops.
Further, this OLT further comprises: service condition detection module, ONU information inquiry module and service condition control module, wherein:
The service condition detection module, be connected with ONU information inquiry module and service condition control module respectively, be used to collect from the state information of the ONU of ONU information inquiry module, the uplink and downlink flow information that comprises each bar business, professional termination or rebulid information, and have the service configuration information of forcing to be provided with operational mode and forced termination business; Support according to the information of collecting, comprehensively to adjudicate this Business Stream and whether meet the condition that enters power save mode, and court verdict is offered the service condition control module under the energy-conservation prerequisite at the ONU that confirms a Business Stream place;
ONU information inquiry module, the state information that is used to inquire about ONU, or the storage of the state information of the ONU that ONU is initiatively reported, and the state information of ONU is provided to the service condition detection module;
The service condition control module, be used for carrying out the operation that control ONU entered or withdrawed from power save mode according to the court verdict of the service condition detection module that receives, even Business Stream meets the condition that enters power save mode, after confirming that Business Stream also is not in energy-saving run, send the command message that enters the energy-saving run state to the ONU at Business Stream place; And, after confirming that Business Stream has been in energy-saving run, send the command message that enters normal operating condition to the ONU at Business Stream place if Business Stream does not meet the condition that enters power save mode.
Further, this one or more ONU further comprises information reporting module, energy-saving control module and one or more described Service Processing Module, and control switch is all contained in this one or more Service Processing Module inside; Wherein:
The information reporting module is used for the ONU information inquiry module communication by ODN and OLT, and some state informations of ONU are initiatively reported OLT;
Energy control module is used for the service condition control module communication by ODN and OLT, and is connected with one or more Service Processing Module, sends confirmation message to OLT after receiving the command message that OLT issues; After receiving the command message that enters the energy-saving run state, Service Processing Module is switched to the energy-saving run state by control switch; After receiving the command message that enters normal operating condition, Service Processing Module is switched to normal operating condition by control switch.
Further, also include cache module respectively in OLT and ONU, the Service Processing Module that the cache module of OLT is used for buffer memory ONU switches to the downlink service data that the normal operating condition process is received by the energy-saving run state; The cache module of ONU is used for the Service Processing Module of buffer memory ONU by running status switching to the uplink business data that the normal operating condition process is received.
Further, the Service Processing Module in the ONU comprises: one or more in voice service processing module, video traffic processing module or the data service processing module, or the module that is combined by a plurality of Service Processing Modules.
Adopt the method for the invention and system, state professional to the up-downgoing in the EPON by OLT and ONU is monitored, and when having only low volume data or business to stop on finding certain class Business Stream, control ONU enters power save mode, to reduce power consumption of terminal; Data increase or business when recovering again suddenly on finding Business Stream, and control ONU enters normal operating conditions.Carry out unified management by OLT, not only improved the integrated level and the accuracy of management, and can combine with authentication, the charging of business.Owing to only need to dispose simple Energy Saving Control switch on the ONU, simplified the design of ONU thus, also help the ONU of different manufacturers and the intercommunication between the OLT.
Description of drawings
Fig. 1 is a PON system configuration schematic diagram;
Fig. 2 is the service condition detection module of OLT of the present invention and the relation diagram of other module of OLT;
Fig. 3 is the energy-saving operating method flow chart of OLT of the present invention according to business state information control PON business;
Fig. 4 accepts the professional energy-conservation flow chart of OLT control PON for ONU of the present invention;
Fig. 5 is the professional energy-saving control module of ONU of the present invention and the relation diagram of other module;
Fig. 6 is the structured flowchart of the present invention by the energy-saving run system of the PON business of OLT monitoring.
Embodiment
The energy-saving operating method of passive optical network service provided by the invention, equipment state professional to the up-downgoing in the PON system by OLT and ONU detects, when the uplink and downlink flow of finding certain bar Business Stream less than a threshold value, perhaps business stops, perhaps the ONU equipment state is not enough to support normal operation, perhaps Business Stream is forced to be provided with energy conservation model, then controls the power save mode operation that ONU connects to keep low speed; When the uplink and downlink flow of finding this Business Stream greater than a threshold value, perhaps business rebulids, perhaps the ONU equipment state recovers normal, perhaps Business Stream is forced to be provided with normal operation mode, then controls ONU and recovers normal operational mode.Simultaneously, OLT monitors the state of ONU, and relevant information is collected, and enters and leave energy conservation model according to these state parameters and information Control ONU.On OLT and ONU, also use data cache module simultaneously, respectively ONU is switched to the up-downgoing business datum that receives the process of normal operation mode from energy conservation model and carry out buffer memory, to avoid losing of business datum.The present invention can guarantee to reduce the energy consumption of ONU effectively under the prerequisite that does not influence regular traffic.Simultaneously,, can reduce the design complexities of ONU, thereby further reduce energy consumption, reduce cost, and be convenient to the interconnection and interflow of equipment owing to adopted centralized monitor and management.
Below in conjunction with specific embodiments and the drawings technique scheme of the present invention is described in further detail.
The energy-saving operating method of passive optical network service provided by the invention is controlled by OLT, and cooperates the control of OLT so that the PON business enters power save mode or withdraws from power save mode and recover normal operating condition by each ONU, and this method comprises the steps:
(a) judgment condition that Business Stream enters power save mode is set, and determines that each ONU supports energy-conservation ability;
(b) OLT equipment state professional to the up-downgoing in the PON system and ONU detects, and when judgement meets the condition that enters power save mode, sends the command message that enters energy-saving run to ONU; And when judgement does not meet the condition that enters power save mode, send the command message that withdraws from energy-saving run to ONU;
(c) ONU is after receiving that OLT is about the command message that enters power save mode, and the corresponding module of controlling in it enters power save mode; ONU is after receiving that OLT is about the command message that withdraws from power save mode, and the corresponding module of controlling in it switches to normal operating conditions from the energy conservation state.
The judgment condition that the Business Stream of mentioning in said method step (a) enters power save mode is set in advance by the keeper, and it is the equipment state various information setting that can obtain up-downgoing in the PON system professional and ONU according to OLT.Fig. 2 has represented that the service condition detection module among the OLT can obtain the above-mentioned various information relevant with judgment condition from other each generic module on the OLT:
(1) obtained the uplink and downlink flow information of each bar business by OLT traffic statistics module, concrete grammar can regularly overflow to trigger and reads the service traffics statistical information by timer is set;
(2) obtain each ONU state change information by ONU information inquiry module, comprise the various information that ONU initiatively reports to OLT, or the various information that inquires from ONU by OLT; Wherein there are the warning information (as the external power supply fault, or the stand-by power supply dump energy reaches low limit value) that ONU reports, the movable indication information (whether activating etc.) and the counting of traffic statistics counter of service port whether to run off threshold value (less than lower bound) information etc. as the ether port;
(3) obtain talk various network protocols information by the procotol processing module, these information all can exert an influence to up-downgoing business in the PON system etc., comprise that connection among the session initiation protocol SIP interrupts the channel leave message among message and the IPTV etc.;
(4) obtain information such as professional termination by business authentication and accounting module;
(5) obtain service configuration information by the business configuration module, comprise all kinds of business priority, up-downgoing maximum bandwidth, enter and leave the threshold limit value of power save mode etc.These configuration informations are configured in advance by the keeper.When detecting ONU stand-by power supply dump energy and be lower than limit value, can make the low business of priority be introduced into power save mode as OLT.The keeper also can be directly certain Business Stream force to be set to enter power save mode or state of termination.
Above-mentioned various information may be summarized to be the following information that judgment condition is directly exerted an influence:
The uplink and downlink flow information of each bar business, business stops or rebulids information, and ONU status information of equipment and service configuration information comprise and force to be provided with operational mode (normal mode or energy saver mode) and forced termination business.
OLT adjudicates certain bar Business Stream according to above-mentioned informix and whether satisfies the condition that enters energy saver mode.Be the professional uplink and downlink flow of each bar whether less than a threshold value, perhaps whether business stops, perhaps whether the ONU equipment state is not enough to support normal operation and each bar Business Stream whether to be forced to that energy conservation model is set or is forced to stop; If promptly satisfy the condition that enters energy saver mode, then notify ONU that corresponding module is entered power save mode, i.e. power save mode operation to keep low speed to connect.
OLT can combine with business authentication module, accounting module to up-downgoing Business Stream status detection module.
That mentions in the step (a) supports energy-conservation ability about ONU, and normally after the ONU normal registration, it is energy-conservation that OLT knows by management channels whether ONU supports, thus can be easily docks with dissimilar ONU.If the ONU of certain model does not support energy saver mode, it is carried out administration of energy conservation with regard to not needing.
ONT comprises energy-conservation tenability: whether support energy-conservation, by characteristic parameter (such as Q-character be 1 to express support for, Q-character is that 0 expression is not supported) statement; Which module is supported energy-conservation (as speech business module, IPTV module, data service module etc.) among the ONU, and the performance parameter (as maximum data rate, data traffic and power consumption etc.) of each business module under power save mode.
Present embodiment can be divided into two parts to the statement of said method of the present invention, and a part is the monitoring flow process of being carried out by OLT, as shown in Figure 3; Another part is a flow process of being accepted OLT control by ONU, as shown in Figure 4.Below a pair of its disclosed.
The above-mentioned monitoring flow process of being carried out by OLT sees also Fig. 2, comprises the steps:
310:OLT detect to collect the various information of PON service condition, the content of these information as mentioned above, this repeats no more;
OLT can adopt regularly inquiry mechanism or down trigger mechanism to the collection of various information.Wherein, the former initiatively collects termly by OLT setting timer time; The latter adopts as the interruption of the connection of user port, external power supply and professional connection have finished etc., collects as the interrupt source Event triggered.
320: it is energy-conservation to judge whether ONU supports, if execution in step 330, process ends if not;
Usually, after ONU succeeded in registration, ONU was to energy-conservation tenability for OLT meeting active inquiry.
330: whether meet the condition that enters power save mode according to the information judgement ONU that obtains, if meet execution in step 340, if do not meet then execution in step 360;
Here judgment condition comprises: judge that according to the various parametric synthesis of collecting whether every professional uplink and downlink flow is less than a threshold value, perhaps whether business stops, and perhaps whether the ONU equipment state is not enough to support normal operation and each bar Business Stream whether to be forced to that energy conservation model is set or is forced to stop.
340: judge further whether Business Stream has been in power save mode; If process ends, execution in step 350 then if not;
350: send the command message that enters power save mode to corresponding ONU, and process ends;
360: judge whether Business Stream has been in power save mode; If execution in step 370, process ends then if not;
370: send the command message that withdraws from power save mode to corresponding ONU.
When certain bar Business Stream no longer meets the judgment condition that enters power save mode, and this Business Stream is when being in the energy conservation pattern, and OLT sends the command message that comprises the normal condition parameter to the ONU at this Business Stream place, so that this Business Stream withdraws from power save mode.When certain bar Business Stream does not meet the judgment condition that enters power save mode, and this Business Stream is not in the energy conservation pattern, and OLT does not just send the command message that comprises the normal condition parameter to the ONU at this Business Stream place, keeps original state of this Business Stream.
The flow process of accepting OLT control by ONU comprises the steps: referring to Fig. 4
410:ONU sends confirmation message to OLT after receiving the command message that OLT issues;
OLT can adjust the Dynamic Bandwidth Allocation strategy of this ONU according to the power save mode parameter of ONU, uses upstream bandwidth more efficiently.OLT can also adjust the Dynamic Bandwidth Allocation strategy of this ONU according to the normal operating conditions parameter of ONU, guarantees professional normal operation.
420: determine whether to make corresponding module to enter power save mode according to command message, if execution in step 430, execution in step 440 then if not;
430: according to the power save mode parameter in the command message, make correlation module enter the energy conservation state, and process ends;
Comprise in the power save mode parameter in the message: need enter the module of power save mode, running time and the performance parameter of this module under power save mode that this module is carried out power save mode.
440: the normal condition parameter according in the command message, make correlation module enter normal operating conditions, and process ends.
Normal condition parameter in the message comprises: need withdraw from the module of power save mode, and the performance parameter of this module under normal operating condition.
Above-mentioned process step 430,440, ONU will make correlation module enter energy-conservation or normal operating conditions according to the state parameter in the command message, can more clearly recognize the details of this operation by Fig. 5.Among Fig. 5,500 pairs of voice service processing modules 510 of ONU energy-saving control module, video traffic processing module 520 and data service processing module 530, the break-make by control switch 511, control switch 521 and control switch 531 enters it separately or withdraws from the energy conservation state respectively.When certain module enters power save mode, only allow low volume data stream to pass through, perhaps data streams no longer.Should declare, the relation of other module among the ONU energy-saving control module 500 that present embodiment is showed by Fig. 5 and the ONU, only be used to illustrate the present invention, and be not used in restriction the present invention, other module among the ONU that is among Fig. 5 to be exemplified is not limited to above-mentioned these modules, and the quantity of each module also is not limited to one.Anyly be made up of above-mentioned one or more module, perhaps one or more functional module that is formed by above-mentioned module combinations all should be in protection scope of the present invention.
Because business datum is recovered or professional the connection rebulids from detecting, enter normal operating conditions to the corresponding module of ONU, need the regular hour.In order not lose business datum, on OLT and ONU, be provided with memory module, be respectively applied for and be temporarily stored in each business module of ONU and switch to the uplink and downlink data of being received in the normal condition process by power save mode.
Present embodiment integrates Fig. 1, Fig. 2 and Fig. 5, the energy-saving run system that can form the PON business by OLT monitoring of the present invention, as shown in Figure 6, the line terminal OLT 610 of this system 600 docks with one or more optical network unit ONU 630 by Optical Distribution Network ODN 620, wherein:
The above-mentioned condition that enters power save mode that meets is meant that the professional uplink and downlink flow of certain bar of discovery is less than a threshold value, perhaps business stops, and perhaps the ONU equipment state is not enough to support normal operation and each bar Business Stream to be forced to be provided with energy conservation model or is forced to stop.
One or more ONU 630 (as 1 to the ONU n of ONU among Fig. 6) is used for that the content control according to this command message switches to energy-saving run state or normal operating condition with each ONU after receiving the command message of OLT.
Above-mentioned OLT 610 specifically contains service condition detection module 611, the service condition control module 612 that connects successively, wherein:
Service condition detection module 611 respectively with OLT traffic statistics module 6110, ONU state information searching module 6111, procotol processing module 6112, business authentication accounting module 6113 and service configuration information module 6114 connect, be used for collecting about all kinds of business from these modules, downlink traffic information, each ONU state change information, talk various network protocols information, professional termination message and the information relevant with the administration traffic configuration operation, support under the energy-conservation prerequisite at the ONU that confirms certain bar Business Stream place, according to the various information of collecting, whether comprehensive certain bar Business Stream of judgement meets the condition that enters power save mode, and court verdict is offered the service condition control module.
About addressing in detail before these information, therefore repeat no more here.
Service condition control module 612, be used for carrying out the operation that control ONU entered or withdrawed from power save mode according to the court verdict of the service condition detection module 611 that receives, even certain bar Business Stream meets the condition that enters power save mode, after confirming that this Business Stream also is not in energy-saving run, send the command message that enters the energy-saving run state to the ONU at this Business Stream place; And, after confirming that described Business Stream has been in energy-saving run, send the command message that enters normal operating condition to the ONU at Business Stream place if certain bar Business Stream does not meet the condition that enters power save mode.
Further comprise information reporting module 631, energy-saving control module 632 and one or more Service Processing Module 633 (Service Processing Module 1 as shown in Figure 6 is to Service Processing Module m) in above-mentioned one or more ONU 630, control switch 6330 is all contained in these Service Processing Module 633 inside; Wherein:
Energy-saving control module 632 is used for service condition control module 612 communications by ODN and OLT 610, sends confirmation message to OLT after receiving the command message that OLT issues; After receiving that OLT enters the command message of power save mode, each Service Processing Module 633 (1 to m) switching is entered power save mode (switching) after this Service Processing Module that is switched 633 of affirmation is in normal operating condition by control switch 6330 (1 to m); After receiving that OLT withdraws from the command message of power save mode, each Service Processing Module 633 (1 to m) is switched to normal operating conditions (switching) after this Service Processing Module that is switched 633 of affirmation is in the energy-saving run state by control switch 6330 (1 to m).
In OLT 610 and ONU 630, also dispose cache module 613,634 separately as previously mentioned respectively, describe in detail before its effect, so repeat no more.
Each generic module that exemplifies in all kinds of unit in the present embodiment PON system only is used to illustrate the present invention, but not is used to limit the present invention.That is any and present embodiment in that though each generic module title that this exemplified is different but the combination of module that substantial function is equal to and module all in protection range proposed by the invention.
In sum, described method and system of the present invention can be saved the power consumption of ONU equipment when long-play only needs low bandwidth professional.Manage by OLT is unified, not only improved the integrated level and the accuracy of management, and can combine with authentication, the charging of business.Owing to only need to dispose simple Energy Saving Control switch on the ONU, simplified the design of ONU thus, not only easily realize and save more cost, also help the ONU of different manufacturers and the intercommunication between the OLT.
The above only for the preferable feasible embodiment of the present invention, is not so limits to interest field of the present invention.Those skilled in the art do not break away from essence of the present invention and spirit, can have the various deformation scheme to realize the present invention.The equivalence that all utilizations specification of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.
Claims (12)
1. the energy-saving operating method of a passive optical network service relates in the described passive optical network PON system by Optical Distribution Network ODN and the optical line terminal OLT of butt joint and one or more network element ONU mutually, and described method comprises the steps:
(a) described OLT collects uplink and downlink business information in the described PON system and the status information of equipment of described ONU, and whether meet the condition that enters power save mode according to every Business Stream of described informix judgement of collecting, send command message according to court verdict to the ONU at described Business Stream place;
(b) described ONU switches to energy-saving run state or normal operating condition according to the described command message of receiving with corresponding service processing module in the described ONU.
2. in accordance with the method for claim 1, it is characterized in that in the preceding step that also comprises of step (a): described OLT is provided with the judgment condition that each bar Business Stream enters power save mode, and determine that each ONU supports energy-conservation ability;
Described judgment condition is set up according to the informix of the described collection of step (a), the information of described collection comprises: the uplink and downlink flow information of each bar business, professional termination or rebulid information, described ONU status information of equipment and comprise the service configuration information of forcing to be provided with operational mode and forced termination business;
Step (a) is confirming that described ONU supports just to carry out described judgement under the energy-conservation prerequisite.
3. according to claim 1 or 2 described methods, it is characterized in that, step (a) meets the described condition that enters power save mode at the described Business Stream of judgement, confirm further that then described Business Stream also is not in the energy-saving run state, just the ONU to described Business Stream place sends the described command message that enters described energy-saving run state; Perhaps, when the described Business Stream of judgement does not meet the described condition that enters power save mode, confirm further that then described Business Stream has been in the energy-saving run state, just the ONU to described Business Stream place sends the command message that enters described normal operating condition; The described condition that enters power save mode comprises: the uplink and downlink flow of described Business Stream is less than a threshold value, perhaps described business stops, perhaps described ONU equipment state is not enough to support normal operation, and perhaps described Business Stream is forced to be provided with energy conservation model or is forced to and stops;
The described ONU of step (b) is after receiving the described command message that enters the energy-saving run state, and the corresponding service processing module of controlling in the described ONU switches to the energy-saving run state from normal operating condition; Described ONU is after receiving the described command message that enters normal operating condition, and the corresponding service processing module of controlling in the described ONU switches to normal operating condition from the energy-saving run state.
4. in accordance with the method for claim 2, it is characterized in that regularly inquiry mechanism or down trigger mechanism are adopted in the described collection of the described OLT of step (a); Wherein, regularly inquiry is by the timing described information of active collection termly is set; Described down trigger is that user port connection, external power supply interruption and professional the connection have been finished to collect described information as the interrupt source Event triggered; The state change information of described ONU comprises: all kinds of described information that initiatively reports by described ONU to described OLT, or by all kinds of described information of described OLT to described ONU inquiry.
5. in accordance with the method for claim 3, it is characterized in that, in described OLT and described ONU, dispose buffer respectively, wherein, the described buffer of described OLT described each generic module of being used for the described ONU of buffer memory switches to the downlink service data that described normal operating condition process is received by described energy-saving run state; Described each generic module that the described buffer of described ONU is used for the described ONU of buffer memory switches to the uplink business data that described normal operating condition process is received by described energy-saving run state.
6. according to claim 1 or 5 described methods, it is characterized in that, described all kinds of Service Processing Modules in the described ONU comprise: one or more in voice service processing module, video traffic processing module or the data service processing module, or the module that is combined by described a plurality of described Service Processing Modules.
7. the energy-saving run system of a passive optical network service comprises: line terminal OLT and one or more optical network unit ONU of achieving a butt joint by Optical Distribution Network ODN; It is characterized in that,
Described OLT, be used for the uplink and downlink of described passive optical network PON system equipment state professional and described ONU is detected, and whether meet the condition that enters power save mode according to the described Business Stream of the comprehensive judgement of the various information that detects, send command message according to court verdict to the ONU at described Business Stream place;
Described one or more ONU is used for that the content control according to this command message switches to energy-saving run state or normal operating condition with the corresponding service processing module in the described ONU after receiving the command message of described OLT.
8. according to the described system of claim 7, it is characterized in that, the described condition that enters power save mode that meets comprises: the uplink and downlink flow of described Business Stream is less than a threshold value, perhaps described business stops, perhaps described ONU equipment state is not enough to support normal operation, and perhaps described Business Stream is forced to be provided with energy conservation model or is forced to and stops.
9. according to the described system of claim 8, it is characterized in that described OLT further comprises: service condition detection module, ONU information inquiry module and service condition control module, wherein:
The service condition detection module, be connected with described ONU information inquiry module and service condition control module respectively, be used to collect from the state information of the described ONU of ONU information inquiry module, the uplink and downlink flow information that comprises each bar business, professional termination or rebulid information, and have the service configuration information of forcing to be provided with operational mode and forced termination business; Support according to the described information of collecting, comprehensively to adjudicate this Business Stream and whether meet the described condition that enters power save mode, and described court verdict is offered described service condition control module under the energy-conservation prerequisite at the ONU that confirms a Business Stream place;
Described ONU information inquiry module, the state information that is used to inquire about described ONU, or the storage of the state information of the described ONU that described ONU is initiatively reported, and the state information of described ONU is provided to described service condition detection module;
Described service condition control module, be used for carrying out the operation that the described ONU of control entered or withdrawed from power save mode according to the court verdict of the described service condition detection module that receives, even described Business Stream meets the described condition that enters power save mode, after confirming that described Business Stream also is not in energy-saving run, send the command message that enters the energy-saving run state to the described ONU at described Business Stream place; And, after confirming that described Business Stream has been in energy-saving run, send the command message that enters normal operating condition to the described ONU at described Business Stream place if described Business Stream does not meet the described condition that enters power save mode.
10. according to the described system of claim 9, it is characterized in that, described one or more ONU further comprises information reporting module, energy-saving control module and one or more described Service Processing Module, and control switch is all contained in described one or more Service Processing Module inside; Wherein:
Described information reporting module is used for the ONU information inquiry module communication by described ODN and described OLT, and some described state informations of described ONU are initiatively reported described OLT;
Described energy-saving control module is used for the described service condition control module communication by described ODN and described OLT, and is connected with described one or more Service Processing Module, sends confirmation message to OLT after receiving the command message that described OLT issues; After receiving the described command message that enters the energy-saving run state, described Service Processing Module is switched to described energy-saving run state by described control switch; After receiving the described command message that enters normal operating condition, described Service Processing Module is switched to described normal operating condition by described control switch.
11. according to each described system of claim 7 to 10, it is characterized in that, in described OLT and described ONU, also include cache module respectively, the described Service Processing Module that the described cache module of described OLT is used for the described ONU of buffer memory switches to the downlink service data that described normal operating condition process is received by described energy-saving run state; The described Service Processing Module that the described cache module of described ONU is used for the described ONU of buffer memory switches to the uplink business data that described normal operating condition process is received by described energy-saving run state.
12. according to each described system of claim 7 to 10, it is characterized in that, described Service Processing Module in the described ONU comprises: one or more in voice service processing module, video traffic processing module or the data service processing module, or the module that is combined by described a plurality of Service Processing Modules.
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