CN102739305A - Method, system and device for locating abnormal ONU in passive optical network system - Google Patents
Method, system and device for locating abnormal ONU in passive optical network system Download PDFInfo
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- CN102739305A CN102739305A CN2011100867855A CN201110086785A CN102739305A CN 102739305 A CN102739305 A CN 102739305A CN 2011100867855 A CN2011100867855 A CN 2011100867855A CN 201110086785 A CN201110086785 A CN 201110086785A CN 102739305 A CN102739305 A CN 102739305A
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Abstract
The invention discloses a method, a system and a device for locating an abnormal ONU in a passive optical network system. In the method, according to different optical power values of each ONU, ONUs in the system are combined randomly to compose different ONU groups, and optical power interval values of the ONU groups are stored. When an abnormal ONU exists, an ONU optical power value of current transmitting data is acquired and is matched with the stored optical power interval values, to determine a corresponding ONU group where the abnormal ONU locates and to locate the abnormal ONU in the ONU group. Because the ONU group comprises limited ONUs, location range of the abnormal ONU is narrowed down, thereby decreasing influences on other normal ONUs and improving the quality of network services.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of EPON (Passive OpticalNetwork, PON) unusual optical network unit (Optical Network Unit, localization method ONU), system and device in the system.
Background technology
Along with development of internet technology, a large amount of voice, data, video etc. are professional through Network Transmission, and therefore the requirement to bandwidth also just constantly improves, and has produced the PON system in order to satisfy this demand.
Fig. 1 is the topological structure sketch map of PON system; The PON system adopts the network configuration that a bit arrives multiple spot; Comprise in this PON system network side optical line terminal (optical line terminal, OLT) and the Optical Distribution Network of user side (Optical Distribution Node, ODN) and optical network unit (Optical Network Unit; ONU), wherein ODN is that physical connection between OLT and the ONU provides light-transmitting medium.
(Gigabit-Capable PON GPON) in the system, is down direction by OLT to the data transfer direction of ONU, is up direction by ONU to the data transfer direction of OLT at new BPON.Downlink data transmission adopts broadcast mode; Each ONU receives all Frames respectively; According to the ONU sign (ONU-ID), GPON method for packing (the GPONEncapsulation Method that carry in the Frame; GEM)-and port-mark (Port ID), allocation identification (Allocation-ID) information, confirm that which Frame that receives is that OLT sends to oneself.When carrying out transmitting uplink data, ONU need share transmission medium, and each ONU carries out transmission of uplink data according to OLT for its distributed time slot.
Fig. 2 be Transmission Convergence in the GPON system (G-PON Transmission Convergence, GTC) structural representation of downlink data frame of layer comprises PCBd and payload in this Frame; Wherein PCBd comprises: physics is (Physical Synchronization synchronously; Psync) territory, sign (Ident) territory, down physical layer Operations, Administration and Maintenance (Physical Layer Operation; Administraion &Maintenance downstream; PLOAMd) territory, bit interleaved parity (Bit InterleavedParity, BIP) territory, information payload length (Payload Length downstream; Plend) territory and upstream bandwidth mapping (upstream bandwidth map, US BWmap) territory.
Wherein OLT can utilize PLOAMd territory in the Frame to realize management functions such as the foundation of activation, ONU management control channel to ONU, encryption configuration, key management.US BWmap territory comprises N distribution structure (Allocation Structure); Wherein each distribution structure comprises again: allocated bandwidth sign (Allocation Identifier; Alloc-ID) territory, Flags territory, bandwidth zero-time (StartTime) territory, bandwidth concluding time (StopTime) territory and CRC (Cyclic RedundancyCheck, CRC) territory, wherein; Alloc-ID can adopt transmission container (TransmissionContainer; T-CONT) sign, the Flags territory is the option of allocated bandwidth, takies 12 bits of 0～11; Wherein bit 10 is used to notify ONU on this upstream bandwidth, to send PLOAM message, and bit 0～6 is a reserved place.
When ONU receives a distribution structure; ONU judges that according to the Alloc-ID information in this distribution structure this distribution structure is that OLT sends to oneself, and then this ONU carries out CRC check to the data of this distribution structure of receiving; When verification is passed through; ONU sends the data among the T-CONT in this distribution structure according to the bandwidth time started of carrying in this distribution structure, and finishes to send these data in the bandwidth concluding time.
In OLT distributes to the corresponding upstream bandwidth of the distribution structure of other ONU, to open activator appliance luminous or send upstream data as certain ONU in the PON system; Then there are two ONU luminous or transmission data on up channel simultaneously this moment; Cause OLT can not normally resolve the upstream data that receives, so OLT need locate the unusual ONU of appearance.
The method that unusual ONU appears in OLT location in the prior art comprises; OLT exists each ONU of annexation to send forbidding sequence number (Disable SerialNumber) message or send deexcitation (Deactivate ONU-ID) message with it in the PON system one by one; The ONU that receives above-mentioned information closes the laser of self; Close the laser of self as ONU after, when OLT can correctly resolve the upstream data that receives, then can realize location to unusual ONU.Perhaps, OLT also can send to all ONU and stop to carry out the control command that upstream data sends, and carries out the instruction that upstream data sends to ONU one by one more afterwards, to realize the location to unusual ONU.
Therefore can know in the prior art; OLT needs to send information to each ONU one by one when locating unusual ONU, perhaps sends the instruction that stop to send data to each ONU; When normal ONU receives corresponding information; Also stop the transmission of data, thereby influenced the work of normal ONU, reduced the service quality of network.
Summary of the invention
In view of this, the embodiment of the invention provides localization method, system and the device of unusual ONU in a kind of passive optical network, in order to solve the work of the normal ONU of influence in the existing unusual ONU location, reduces the problem of network service quality.
Treat to replenish after claim is confirmed
Because the optical power value of each ONU is different, the ONU in the system is constituted different ONU groups in the embodiment of the invention, and preserve ONU group luminous power interval value; When having unusual ONU; The coupling of the ONU optical power value through obtaining current transmission data and the luminous power interval value of preservation is confirmed corresponding ONU group, the unusual ONU in location in this ONU group; Owing to comprise the ONU of limited quantity in the ONU group; The orientation range of therefore unusual ONU reduces, and has reduced the influence to other operate as normal ONU, has improved network service quality.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes a part of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the topological structure sketch map of PON system;
Fig. 2 is the structural representation of the downlink data frame of transmission convergence layer in the GPON system;
The position fixing process of unusual ONU in a kind of PON system that Fig. 3 provides for the embodiment of the invention;
The structural representation of the navigation system of unusual optical network unit ONU in a kind of passive optical network that Fig. 4 provides for the embodiment of the invention;
The structural representation of the positioner of unusual optical network unit ONU in the kind passive optical network that Fig. 5 provides for the embodiment of the invention.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention improves network service quality in order to reduce the influence to the ONU of operate as normal in the system, and localization method, system and the device of unusual ONU in a kind of PON system is provided; Because the optical power value of each ONU is different, the ONU in the system is carried out combination in any constitute different ONU groups, comprise at least one ONU among every group of ONU; And preserve this ONU group luminous power interval value, when having unusual ONU, confirm current luminous several ONU optical power values; According to the coupling of the luminous power interval value of preserving, confirm the ONU group at the ONU place that corresponding appearance is unusual, the unusual ONU in location in this ONU group; Owing to comprise the ONU of limited quantity in the ONU group; The orientation range of therefore unusual ONU reduces, and has reduced the influence to other operate as normal ONU, has improved network service quality.
The position fixing process of unusual ONU in a kind of PON system that Fig. 3 provides for the embodiment of the invention, this process may further comprise the steps:
S301: optical line terminal obtains the current optical power value that carries out the ONU of data transmission.
When having unusual ONU in the PON system, because this moment, OLT can't normally resolve the upstream data that receives, this moment, OLT need unusual ONU occur through obtaining the luminous power of the ONU that carries out the data transmission this moment in the navigation system.
The optical power value that this moment, OLT obtained comprises the optical power value of normal ONU and the optical power value of unusual ONU; Because when existing unusual ONU luminous in the system; Unusual ONU is simultaneously luminous with normal ONU; So OLT directly measures the optical power value that receives, just can obtain the current luminous optical power value that carries out the different ONU that data send simultaneously and.
S302: each luminous power interval value of this optical power value and self preservation is mated.
Concrete OLT in embodiments of the present invention self has preserved the luminous power interval value of each ONU group, and the corresponding relation of the information of each ONU in this ONU group.
After having obtained the current optical power value that carries out the ONU that data send, in order to locate the scope of unusual ONU, this optical power value and each luminous power interval value of self preserving are mated, confirm the interval range that this luminous power interval value belongs to.
S303: according to the corresponding relation of the information of each ONU in luminous power interval value of self preserving and the ONU group, confirm the information of each ONU in the corresponding ONU group of the successful optical power value interval value of coupling, wherein comprise the information of at least one ONU in each ONU group.
When mating successfully; After promptly having confirmed the luminous power interval at the current optical power value place that obtains; The luminous power interval value of each ONU group of preserving according to self; And the corresponding relation of the information of each ONU in this ONU group, confirm the information of each ONU in the corresponding ONU group of this luminous power interval value.
S304: based on the information of each ONU in this ONU group, unusual ONU appears in the location.
Concrete, based on the information of each ONU in this ONU group, unusual ONU appears in the location, comprising:
Each ONU sends the forbidding sequence number information in this ONU group one by one, or deexcitation information, and unusual ONU appears in the location; Or,
All ONU send and stop to carry out the control command that upstream data sends in this ONU group, the instruction that each ONU transmission carrying out upstream data sends in this ONU group one by one again, and unusual ONU appears in the location.
In embodiments of the present invention according to each ONU in the PON system; ONU is carried out combination in any; And same ONU can be arranged in different ONU groups, wherein comprises the information of at least one ONU in each ONU group, measures and write down the corresponding luminous power interval value of this ONU group.
The concrete corresponding relation of preserving the information of each ONU in luminous power interval value and the ONU group in embodiments of the present invention comprises:
To each ONU group, measure the optical power value when each ONU sends upstream data in this group, wherein comprise the information of at least one ONU arbitrarily in each ONU group;
Based on this optical power value, and the adjustment of preserving is interval, confirms the luminous power interval value that this optical power value is corresponding, and preserves the corresponding relation of each ONU among this luminous power interval value and this group ONU.
During optical power value when wherein each ONU sends upstream data in measuring this group; In the time of can working as m ONU and send upstream data simultaneously; The optical power value that the optical line terminal measurement receives is confirmed as ONU group with this m ONU, and the optical power value of this optical power value that will measure during as this group ONU transmission upstream data; Wherein, m is not less than 1 integer.
Perhaps, in the time of also can working as each ONU transmission upstream data, optical line terminal is measured the optical power value of each ONU, and writes down the information of each ONU;
Select m ONU to organize as an ONU, according to the optical power value of each ONU in this group of measuring, confirm the optical power value when this group ONU sends upstream data, wherein, m is not less than 1 integer.
In order to guarantee that m ONU can send upstream data simultaneously; Optical line terminal need pass through downlink information; Notify a said m ONU on identical upstream bandwidth, to send upstream data simultaneously; Comprise the ONU management control interface information comprising said downlink information, or the bandwidth of downlink data frame mapping territory, physical layer operations, management and maintain message.
Concrete accuracy in order to guarantee that unusual ONU confirms; Can the number of the ONU that comprise in the ONU group be segmented in embodiments of the present invention; Comprise an ONU from each ONU group, in each ONU group, comprise N ONU, measure and write down the corresponding luminous power interval value of each ONU group successively.
When OLT preserved each ONU group and is somebody's turn to do the information of each ONU in the group, this OLT at first can organize each ONU as an ONU, i.e. the information of the corresponding ONU of each ONU group.This OLT is when confirming the optical power value of each ONU group; Can be when each ONU sends upstream data; Measure the optical power value of this each ONU, or OLT is through the BWmap territory, for each ONU distributes upstream bandwidth; When each ONU sent data on the upstream bandwidth of this OLT appointment, this OLT measured the optical power value of this ONU.Obtained the optical power value of each ONU as this OLT after, interval according to the adjustment of self preserving, confirm the luminous power interval value that each optical power value is corresponding, preserve the corresponding relation of this luminous power interval value and this ONU information.
Afterwards, OLT organizes any two ONU as an ONU, and when having n ONU in this PON system, this OLT can confirm C
n 2The individual ONU group that comprises two ONU is promptly confirmed C
n 2Individual ONU group.Owing to comprise two ONU in this each ONU group; OLT distributes identical upstream bandwidth for two ONU in this each ONU group through BWmap, when these two upstream bandwidths that ONU response OLT distributes, when adopting this upstream bandwidth to send upstream data simultaneously; The optical power value that the OLT measurement receives; According to the optical power value that measures, and the adjustment of preserving is interval, confirms the luminous power interval value that this optical power value is corresponding; And, preserve the corresponding relation of the information of each ONU among this luminous power interval value and this group ONU with the luminous power interval value of this luminous power interval value as this group ONU.Wherein this adjustment interval can be the value range of rule of thumb setting, because the optical power value of ONU is not invariable, it is interval therefore at this adjustment to be set, to guarantee the success rate of subsequent optical power match.
Same, when comprising three ONU in each ONU group, when this PON system comprises n ONU, then when definite ONU organizes, can confirm C
n 3The individual ONU group that comprises three ONU, promptly any three ONU can be as an ONU group.After having confirmed each ONU group, can distribute identical upstream bandwidth for three ONU in this each ONU group through BWmap, thereby confirm the optical power value of ONU in this ONU group.By that analogy, in this each ONU group, comprise 4,5,6 ... during n ONU, adopt said method to confirm the corresponding relation of the information of luminous power interval value that each ONU organizes and each ONU with this.
In addition; Preserved the corresponding relation of each ONU luminous power interval value of organizing and the information that reaches ONU as OLT after; When increasing new ONU again in the PON system; Can be according to said method, the ONU that the ONU that will increase newly respectively and other have existed makes up, the corresponding relation of luminous power interval value that definite each newly-increased ONU organizes and the information of each ONU.
For example, when comprising 10 ONU in the PON system, the sequence number of these 10 ONU is respectively 1～10; Then when definite ONU organizes; At first confirm to comprise the ONU group of an ONU, the ONU group that comprises an ONU is 10, comprises an above-mentioned ONU in each ONU group; Confirm to comprise the OUN group of two ONU afterwards; Can confirm that then sequence number is that 1 ONU can be that 2～10 ONU constitutes an ONU group respectively with sequence number, sequence number is that 2 ONU can be that 3～10 ONU constitutes the ONU group respectively with sequence number afterwards, can confirm C102 ONU group that comprises two ONU by that analogy; Confirm to comprise the ONU group of three ONU again; Can confirm that then sequence number is that 1,2 ONU can be that 3～10 ONU constitutes an ONU group respectively with sequence number, sequence number is that 1,3 ONU can be that 4～10 ONU constitutes an ONU group respectively with sequence number, can confirm C by that analogy
10 3The individual ONU group that comprises three ONU.Adopt said method afterwards, can confirm each ONU that comprises 4～10 ONU group.
When increasing new ONU in the PON system; For example the sequence number of this ONU is 11, in the time of then can increasing this newly-increased ONU and be one group, and luminous power interval value that this ONU group is corresponding and the identification information of this newly-increased ONU; Afterwards; When confirming that this newly-increased ONU and other ONU constitute the ONU group comprise two ONU, the corresponding relation of the information of ONU in the luminous power interval value of this ONU group and this group confirms that promptly this sequence number is that 11 ONU is the corresponding relation that 1～10 ONU forms the information of ONU in luminous power interval value and this group of each ONU group that constitutes with sequence number respectively; When confirming again that afterwards this newly-increased ONU and other two ONU constitute the ONU group that comprises three ONU; The corresponding relation of the information of ONU in the luminous power interval value of this ONU group and this group, deterministic process is identical with said process, does not just give unnecessary details one by one here.
After having confirmed each ONU group; OLT sends downlink information through the ONU in each ONU group; Notify each ONU in this group on identical upstream bandwidth, to send upstream data simultaneously; Wherein said downlink information comprises the ONU management control interface information, or the bandwidth of downlink data frame mapping territory, physical layer operations, management and maintain message.
Concrete OLT in embodiments of the present invention can distribute identical upstream bandwidth for the ONU in each ONU group through BWmap; Also can distribute identical upstream bandwidth for the ONU in each ONU group through PLOAM message; Perhaps OLT distributes upstream bandwidth for 1 ONU through BWmap; And give other m-1 the ONU distribution upstream bandwidths identical through PLOAM message with above-mentioned ONU, or the like other optional mode also be fine.And work as this OLT and passing through downlink information, when notifying a said m ONU on identical upstream bandwidth, to send upstream data simultaneously, in order to guarantee reliability of data transmission, this downlink information can be encrypted.
When distributing identical upstream bandwidth through PLOAM message for the ONU in each ONU group, the form of this PLOAM message is as shown in the table:
First byte of this message is the value of ONU-ID, representes that this message sends to the ONU of ONU-ID value for ONU-ID1; The type of this PLOAM message of the content representation of second byte is the structural information type of Assign_UPBWmap message; The content of the 3rd to the 12 byte is the upstream bandwidth that OLT distributes to ONU.OLT can select the content of the 2nd to the 12nd byte of Assign_UP BWmap message is encrypted, perhaps only over the ground the content of 3 to the 12nd bytes encrypt.
OLT also can distribute identical upstream bandwidth to each ONU in the ONU group through ONU management control interface (OMCI) message in addition; Perhaps OLT distributes upstream bandwidth for 1 ONU through BWmap; And pass through OMCI message and distribute the upstream bandwidths identical with above-mentioned ONU for other m-1 ONU, OLT also can select all or part of content of OMCI message is encrypted.
Behind the corresponding relation of the information of each ONU in the luminous power interval value of having preserved each ONU group among the OLT and this ONU group; When having unusual ONU in this PON system; This OLT obtains the current optical power value that carries out luminous ONU in the system, the promptly current optical power value that carries out the ONU that data send with.Optical power value with this ONU that obtains; Mate with each luminous power interval value of preserving; Confirm to mate successful luminous power interval value, when mating successfully, can think the information of the current ONU that sends with the optical power value of this ONU that obtains; Be the ONU in the corresponding ONU group of this luminous power interval value, promptly this unusual ONU is present in the corresponding ONU group of this luminous power interval value.
After the ONU group of having confirmed unusual ONU place; Through each ONU forbidding serial number message in this ONU group; Or deexcitation message is located unusual ONU; Perhaps also can send the control command that stops to carry out the upstream data transmission, the instruction that each ONU transmission carrying out upstream data sends in this ONU group one by one again, the unusual ONU of location appearance through all ONU in this ONU group.
Owing to confirm to comprise the corresponding optical power value of ONU group of different ONU in embodiments of the present invention; According to the optical power value that has unusual ONU; Confirm the information of the current ONU that sends, locate unusual ONU according to the information of the ONU that confirms afterwards, thereby dwindled the scope that ONU confirms; Reduced influence, improved the service quality of network other ONU operate as normal.
The structural representation of the navigation system of unusual optical network unit ONU in a kind of passive optical network that Fig. 4 provides for the embodiment of the invention, said system comprises:
ONU42 is used to carry out the transmission of upstream data.
Said optical line terminal 41 specifically is used for measuring the optical power value when each ONU sends upstream data in this group to each ONU group, wherein comprises the information of at least one ONU arbitrarily in each ONU group; Based on this optical power value, and the adjustment of preserving is interval, confirms the luminous power interval value that this optical power value is corresponding, and preserves the corresponding relation of each ONU among this luminous power interval value and this group ONU.
The structural representation of the positioner of unusual optical network unit ONU in a kind of passive optical network that Fig. 5 provides for the embodiment of the invention, said device comprises:
Coupling determination module 52 is used for each luminous power interval value of this optical power value and self preservation is mated; According to the corresponding relation of the information of each ONU in luminous power interval value of self preserving and the ONU group, confirm the information of each ONU in the corresponding ONU group of the successful optical power value interval value of coupling, wherein comprise the information of at least one ONU in each ONU group;
Locating module 53 is used for the information according to each ONU of this ONU group, and unusual ONU appears in the location.
Said coupling determination module 52 specifically is used for measuring the optical power value when each ONU sends upstream data in this group to each ONU group, wherein comprises the information of at least one ONU arbitrarily in each ONU group; Based on this optical power value, and the adjustment of preserving is interval, confirms the luminous power interval value that this optical power value is corresponding, and preserves the corresponding relation of each ONU among this luminous power interval value and this group ONU.
Preferable,
Said coupling determination module 52; Specifically be used for when m ONU sends upstream data simultaneously, the optical power value that the optical line terminal measurement receives is confirmed as an ONU group with this m ONU; And the optical power value of this optical power value that will measure when sending upstream data as this group ONU; Wherein, m is not less than 1 integer, and is interval according to optical power value of measuring and adjustment; Confirm the luminous power interval value that this optical power value is corresponding, and preserve the corresponding relation of the information of each ONU among this luminous power interval value and this group ONU.
Said coupling determination module 52; Specifically be used for through downlink information; Notify a said m ONU on identical upstream bandwidth, to send upstream data simultaneously; Comprise the ONU management control interface information comprising said downlink information, or the bandwidth of downlink data frame mapping territory, physical layer operations, management and maintenance information.
Preferable,
Said coupling determination module 52 specifically is used for when each ONU sends upstream data, and optical line terminal is measured the optical power value of each ONU, and writes down the information of each ONU; Select m ONU to organize as an ONU; According to the optical power value of each ONU in this group of measuring, confirm the optical power value when this group ONU sends upstream data, wherein; M is not less than 1 integer; Interval according to optical power value of confirming and adjustment, confirm the luminous power interval value that this optical power value is corresponding, and preserve the corresponding relation of the information of each ONU among this luminous power interval value and this group ONU.
Said locating module 53 specifically is used for sending the forbidding sequence number information to each ONU of this ONU group one by one, or deexcitation information, and unusual ONU appears in the location; Or all ONU send and stop to carry out the control command that upstream data sends in this ONU group, the instruction that each ONU transmission carrying out upstream data sends in this ONU group one by one again, and unusual ONU appears in the location.
This concrete device can be arranged in OLT.
The embodiment of the invention provides localization method, system and the device of unusual ONU in a kind of passive optical network, because the optical power value of each ONU is different, the ONU in the system is carried out combination in any constitute different ONU groups in this method; Comprise at least one ONU among every group of ONU, and preserve the luminous power interval value of this ONU group, when having unusual ONU; Confirm current luminous several ONU optical power values; According to the coupling of the luminous power interval value of preserving, confirm the ONU group at the ONU place that corresponding appearance is unusual, the unusual ONU in location in this ONU group; Owing to comprise the ONU of limited quantity in the ONU group; The orientation range of therefore unusual ONU reduces, and has reduced the influence to other operate as normal ONU, has improved network service quality.
Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention; But as previously mentioned; Be to be understood that the present invention is not limited to the form that this paper discloses, should do not regard eliminating as, and can be used for various other combinations, modification and environment other embodiment; And can in invention contemplated scope described herein, change through the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of accompanying claims of the present invention.
Claims (13)
1. the localization method of unusual optical network unit ONU in the passive optical network is characterized in that, comprising:
When unusual ONU occurring in the passive optical network, optical line terminal obtains the current optical power value that carries out the ONU of data transmission;
Each luminous power interval value of this optical power value and optical line terminal self preservation is mated;
According to the corresponding relation of the information of each ONU in luminous power interval value of self preserving and the ONU group, confirm the information of each ONU in the corresponding ONU group of the successful optical power value interval value of coupling;
According to the information of each ONU in this ONU group, unusual ONU appears in the location.
2. the method for claim 1 is characterized in that, preserves the corresponding relation of the information of each ONU in luminous power interval value and the ONU group, comprising:
To each ONU group, measure the optical power value when each ONU sends upstream data in this group, wherein comprise the information of at least one ONU in each ONU group;
Interval based on optical power value of measuring and adjustment, confirm the luminous power interval value that this optical power value is corresponding, and preserve the corresponding relation of the information of each ONU among this luminous power interval value and this group ONU.
3. the method for claim 1 is characterized in that, preserves the corresponding relation of the information of each ONU in luminous power interval value and the ONU group, comprising:
When m ONU sent upstream data simultaneously, the optical power value that the optical line terminal measurement receives was confirmed as an ONU group with this m ONU; And the optical power value of this optical power value that will measure when sending upstream data as this group ONU; Wherein, m is not less than 1 integer, and is interval according to optical power value of measuring and adjustment; Confirm the luminous power interval value that this optical power value is corresponding, and preserve the corresponding relation of the information of each ONU among this luminous power interval value and this group ONU.
4. method as claimed in claim 3 is characterized in that, m ONU sends upstream data simultaneously, comprising:
Said optical line terminal passes through downlink information; Notify a said m ONU on identical upstream bandwidth, to send upstream data simultaneously; Wherein said downlink information comprises the ONU management control interface information, or the bandwidth of downlink data frame mapping territory, or physical layer operations, management and maintain message.
5. the method for claim 1 is characterized in that, preserves the corresponding relation of the information of each ONU in luminous power interval value and the ONU group, comprising:
When each ONU sent upstream data, optical line terminal was measured the optical power value of each ONU, and write down the information of each ONU;
Select m ONU to organize as an ONU; According to the optical power value of each ONU in this group of measuring, confirm the optical power value when this group ONU sends upstream data, interval according to optical power value of confirming and adjustment; Confirm the luminous power interval value that this optical power value is corresponding; And preserve the corresponding relation of the information of each ONU among this luminous power interval value and this group ONU, wherein, m is not less than 1 integer.
6. the method for claim 1 is characterized in that, according to the information of each ONU in this ONU group, unusual ONU appears in the location, comprising:
Each ONU sends the forbidding sequence number information in this ONU group one by one, or deexcitation information, and unusual ONU appears in the location; Or,
All ONU send and stop to carry out the control command that upstream data sends in this ONU group, the instruction that each ONU transmission carrying out upstream data sends in this ONU group one by one again, and unusual ONU appears in the location.
7. the positioner of unusual optical network unit ONU in the passive optical network is characterized in that said device comprises:
Acquisition module is used to obtain the current optical power value that carries out the ONU of data transmission;
The coupling determination module is used for each luminous power interval value of this optical power value and preservation is mated; According to the corresponding relation of the information of each ONU in luminous power interval value of preserving and the ONU group, confirm the information of each ONU in the corresponding ONU group of the successful optical power value interval value of coupling;
Locating module is used for the information according to each ONU of this ONU group, and unusual ONU appears in the location.
8. device as claimed in claim 7 is characterized in that, said coupling determination module specifically is used for measuring the optical power value when each ONU sends upstream data in this group to each ONU group, wherein comprises the information of at least one ONU arbitrarily in each ONU group; Based on this optical power value of measuring, and the adjustment of preserving is interval, confirms the luminous power interval value that this optical power value is corresponding, and preserves the corresponding relation of the information of each ONU among this luminous power interval value and this group ONU.
9. device as claimed in claim 7 is characterized in that, said coupling determination module; Specifically be used for when m ONU sends upstream data simultaneously; The optical power value that the optical line terminal measurement receives is confirmed as ONU group with this m ONU, and with the optical power value that measures the optical power value during as this group ONU transmission upstream data; Wherein, m is not less than 1 integer.
10. device as claimed in claim 9; It is characterized in that said coupling determination module specifically is used for through downlink information; Notify a said m ONU on identical upstream bandwidth, to send upstream data simultaneously; Comprise the ONU management control interface information comprising said downlink information, or the bandwidth of downlink data frame mapping territory, physical layer operations, management and maintain message.
11. device as claimed in claim 7 is characterized in that, said coupling determination module specifically is used for when each ONU sends upstream data, and optical line terminal is measured the optical power value of each ONU, and writes down the information of each ONU; Select m ONU to organize as an ONU; According to the optical power value of each ONU in this group of measuring, confirm the optical power value when this group ONU sends upstream data, interval according to optical power value of confirming and adjustment; Confirm the luminous power interval value that this optical power value is corresponding; And preserve the corresponding relation of the information of each ONU among this luminous power interval value and this group ONU, wherein, m is not less than 1 integer.
12. device as claimed in claim 7 is characterized in that, said locating module specifically is used for sending the forbidding sequence number information to each ONU of this ONU group one by one, or deexcitation information, and unusual ONU appears in the location; Or all ONU send and stop to carry out the control command that upstream data sends in this ONU group, the instruction that each ONU transmission carrying out upstream data sends in this ONU group one by one again, and unusual ONU appears in the location.
13. the navigation system of unusual optical network unit ONU is characterized in that said system comprises optical line terminal and ONU in the passive optical network, optical line terminal comprises acquisition module, coupling determination module and locating module,
Acquisition module is used to obtain the current optical power value that carries out the ONU of data transmission;
The coupling determination module is used for each luminous power interval value of this optical power value and preservation is mated; According to the corresponding relation of the information of each ONU in luminous power interval value of preserving and the ONU group, confirm the information of each ONU in the corresponding ONU group of the successful optical power value interval value of coupling;
Locating module is used for the information according to each ONU of this ONU group, and unusual ONU appears in the location;
ONU is used to carry out data and sends.
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