CN102111689B - Method and system for notifying state of optical network unit in passive optical network - Google Patents
Method and system for notifying state of optical network unit in passive optical network Download PDFInfo
- Publication number
- CN102111689B CN102111689B CN200910260722.XA CN200910260722A CN102111689B CN 102111689 B CN102111689 B CN 102111689B CN 200910260722 A CN200910260722 A CN 200910260722A CN 102111689 B CN102111689 B CN 102111689B
- Authority
- CN
- China
- Prior art keywords
- network unit
- optical network
- described optical
- line terminal
- state
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Small-Scale Networks (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a method and a system for notifying the state of an optical network unit (ONU) in a passive optical network. The method comprises the following steps: when the ONU sends the sending uplink frames to an optical line terminal (OLT) or after the OLT inquires the state of the ONU, the ONU notifies the current state to the OLT. With the state transfer method of the ONU, the OLT can correctly obtain the current state of the ONU, assist the OLT in sending correct instructions to the ONU, and improve the communication efficiency between the OLT and the ONU.
Description
Technical field
The present invention relates to communication technical field, relate in particular to Notification Method and the system of state of optical network unit in passive optical network.
Background technology
Gigabit passive optical network (Gigabit-Capable Passive Optical Network, referred to as GPON) technology is an important technology branch in EPON (PON) family, with other PON technology type seemingly, GPON is by optical line terminal (the Optical Line Terminal of office's side, referred to as OLT), the optical network unit of user's side (Optical Network Unit, referred to as ONU) and Optical Distribution Network (Optical Distribution Network, referred to as ODN) form, in GPON, passive light access technology adopts point-to-multipoint topological structure, the i.e. topological structure of the corresponding a plurality of optical network units of optical line terminal.ODN is comprised of Passive Optical Components such as monomode fiber, optical branching device, optical connectors, for the physical connection between OLT and ONU provides light-transmitting medium.
In GPON system, ONU has 7 states, is respectively initial condition, holding state, serial-number-state, distance measuring states, running status, ejection (POPUP) state and emergent stopping state.ONU after receiving specific downlink frame or can not normally receiving downlink frame from a state transition to another state, for example: the ONU of holding state transfers to serial-number-state after intercepting and obtain the parameter configuration in up overhead parameter (Upstream_overhead parameters) message that OLT periodically sends, the ONU of serial-number-state receives after the distribution ONU of OLT transmission identifies (Assign_ONU-ID) message and transfers to distance measuring states, the ONU of distance measuring states transfers to running status after receiving range finding time (Ranging_Time) message that OLT sends, the ONU of running status can not normally receive downlink frame and transfer to POPUP state etc. within a period of time.The current state of particular message confirmation ONU that OLT sends by receiving ONU, for example: OLT confirms that described ONU is in serial-number-state after receiving ONU sequence number (Serial_Number_ONU) message that comprises random delay information that ONU sends, OLT confirms that described ONU is in distance measuring states after receiving the ONU serial number message that does not comprise random delay information that ONU sends.ONU only sends corresponding message to OLT at it during in serial-number-state, distance measuring states and running status, when other states, ONU can not send any message to OLT, and when PON system generation abnormal conditions, for example, when the optical fiber link of PON system has problems, also can there is state transitions in ONU, but OLT can not accurately be known the state variation of ONU, OLT can only be according to the state of the ONU state transitions principle judgement ONU of GPON regulation, this may cause the OLT judgement state of ONU and the state of ONU reality not to be inconsistent, and affects the communication quality of OLT and ONU.
In existing correlation technique, do not provide about solution to the problems described above.
Summary of the invention
The technical problem to be solved in the present invention is to provide Notification Method and the system of state of optical network unit in passive optical network, solves OLT and can not accurately know that ONU state causes the problem of intercommunication Quality Down.
In order to address the above problem, the invention provides the Notification Method of state of optical network unit in passive optical network, comprise: optical network unit when sending uplink frame to optical line terminal or described optical line terminal to described optical network unit, inquire about after the state of this optical network unit, described optical network unit by current state notice to described optical line terminal.
Further, said method also has following characteristics:
Described optical network unit is in serial-number-state, when distance measuring states or running status, in the indication territory of the uplink frame sending to described optical line terminal, carry the current state information of described optical network unit, or, in the uplink frame sending to described optical line terminal, increase by an optical network unit state indication territory, and indicate at this optical network unit state the current state information that carries described optical network unit in territory, or, in the Physical Layer OAM message sending to described optical line terminal, increase by an optical network unit state indication territory, and indicate at this optical network unit state the current state information that carries described optical network unit in territory.
Further, said method also has following characteristics:
The mode that described optical line terminal is inquired about the state of this optical network unit to described optical network unit is that described optical line terminal carries the allocated bandwidth structure that represents inquiry optical network unit state in the downlink frame sending to described optical network unit, in this allocated bandwidth structure, indicate described optical network unit feedback to carry the Physical Layer OAM message of current state, described optical network unit is received after this downlink frame, sends the Physical Layer OAM message of carrying current state information to described optical line terminal.
Further, said method also has following characteristics:
The mode that described optical line terminal is inquired about the state of this optical network unit to described optical network unit is that described optical line terminal sends for inquiring the Physical Layer OAM message of the state of this optical network unit to described optical network unit, the type of message of this Physical Layer OAM message is optical network unit status poll type, and described optical network unit sends the Physical Layer OAM message of carrying current state information to described optical line terminal after receiving this Physical Layer OAM message.
Further, said method also has following characteristics:
The type of message of the Physical Layer OAM message that described optical network unit sends to described optical line terminal is optical network unit state indication type, and in this Physical Layer OAM message, carry optical network unit status field, described optical network unit is indicated current state in this optical network unit status field.
Further, said method also has following characteristics:
The Physical Layer OAM message that described optical network unit sends to described optical line terminal is the Physical Layer OAM message of existing type, described optical network unit increases by an optical network unit state indication territory in this Physical Layer OAM message, and carries current state information in this optical network unit state indication territory.
In order to address the above problem, the present invention also provides the reporting system of the optical network unit state in EPON, comprises optical network unit and optical line terminal, described optical network unit, for when sending uplink frame to optical line terminal, current state is notified to described optical line terminal; Or, at described optical line terminal, to described optical network unit, inquire about after the state of this optical network unit, current state is notified to described optical line terminal; Described optical line terminal, for inquiring about the state of this optical network unit to described optical network unit.
Further, said system also has following characteristics:
Described optical network unit, also in serial-number-state, when distance measuring states or running status, in the indication territory of the uplink frame sending to described optical line terminal, carry the current state information of described optical network unit, or, in the uplink frame sending to described optical line terminal, increase by an optical network unit state indication territory, and indicate at this optical network unit state the current state information that carries described optical network unit in territory, or, in the Physical Layer OAM message sending to described optical line terminal, increase by an optical network unit state indication territory, and indicate at this optical network unit state the current state information that carries described optical network unit in territory.
Further, said system also has following characteristics:
The mode that described optical line terminal is inquired about the state of this optical network unit to described optical network unit is that described optical line terminal carries the allocated bandwidth structure that represents inquiry optical network unit state in the downlink frame sending to described optical network unit, indicates described optical network unit feedback to carry the Physical Layer OAM message of current state in this allocated bandwidth structure; Described optical network unit, also for receiving after this downlink frame, sends the Physical Layer OAM message of carrying current state information to described optical line terminal.
Further, said system also has following characteristics:
The mode that described optical line terminal is inquired about the state of this optical network unit to described optical network unit is that described optical line terminal sends for inquiring the Physical Layer OAM message of the state of this optical network unit to described optical network unit, and the type of message of this Physical Layer OAM message is optical network unit status poll type; Described optical network unit also sends the Physical Layer OAM message of carrying current state information to described optical line terminal after receiving this Physical Layer OAM message.
Further, said system also has following characteristics:
The type of message of the Physical Layer OAM message that described optical network unit sends to described optical line terminal is optical network unit state indication type, and carries optical network unit status field in this Physical Layer OAM message; Described optical network unit, also for indicating current state in this optical network unit status field.
Further, said system also has following characteristics:
The Physical Layer OAM message that described optical network unit sends to described optical line terminal is the Physical Layer OAM message of existing type; Described optical network unit also for increase by an optical network unit state indication territory in this Physical Layer OAM message, and carries current state information in this optical network unit state indication territory.
By adopting ONU status transferring method in the present invention, OLT can accurately obtain the current state of ONU, is conducive to OLT and sends correct instruction to ONU, improves the communication efficiency between OLT and ONU.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the Notification Method of optical network unit state in embodiment.
Embodiment
The reporting system of the optical network unit state in EPON comprises optical network unit and optical line terminal.
Optical network unit, for when sending uplink frame to optical line terminal, notifies current state to optical line terminal.Concrete, optical network unit is in serial-number-state, when distance measuring states or running status, in the indication territory of the uplink frame sending to described optical line terminal, carry the current state information of described optical network unit, or, in the uplink frame sending to described optical line terminal, increase by an optical network unit state indication territory, and indicate at this optical network unit state the current state information that carries described optical network unit in territory, or, in the Physical Layer OAM message sending to described optical line terminal, increase by an optical network unit state indication territory, and indicate at this optical network unit state the current state information that carries described optical network unit in territory.
In the another kind of implementation of native system, optical line terminal, for inquiring about the state of this optical network unit to described optical network unit.Optical network unit, for inquiring about to described optical network unit at optical line terminal after the state of this optical network unit, notifies current state to described optical line terminal;
Described optical line terminal is inquired about mode one from the state of this optical network unit to described optical network unit is, described optical line terminal carries the allocated bandwidth structure that represents inquiry optical network unit state in the downlink frame sending to described optical network unit, indicates described optical network unit feedback to carry the Physical Layer OAM message of current state in this allocated bandwidth structure.Described optical network unit, for receiving after this downlink frame, sends the Physical Layer OAM message of carrying current state information to described optical line terminal.
Described optical line terminal is inquired about mode two from the state of this optical network unit to described optical network unit is, described optical line terminal sends for inquiring the Physical Layer OAM message of the state of this optical network unit to described optical network unit, and the type of message of this Physical Layer OAM message is optical network unit status poll type.Described optical network unit also sends the Physical Layer OAM message of carrying current state information to described optical line terminal after receiving this Physical Layer OAM message.
The Physical Layer OAM message that optical network unit sends to described optical line terminal can be a new Physical Layer OAM message, the type of message of this Physical Layer OAM message is optical network unit state indication type, and carries optical network unit status field in this Physical Layer OAM message.Optical network unit is also for indicating current state in this optical network unit status field.
The Physical Layer OAM message that optical network unit sends to described optical line terminal can also be the Physical Layer OAM message of existing type.Optical network unit is also indicated territory for increase by an optical network unit state in this Physical Layer OAM message, and carries current state information in this optical network unit state indication territory.
In embodiment, the Notification Method of optical network unit state comprises: optical network unit when sending uplink frame to optical line terminal described in optical network unit by current state notice to described optical line terminal.Or as shown in Figure 1, optical line terminal is inquired about to described optical network unit after the state of this optical network unit, optical network unit notifies current state to described optical line terminal.
With a plurality of embodiment, illustrate the Notification Method of optical network unit state in the present invention below.
Embodiment mono-
Optical network unit, when in serial-number-state, distance measuring states or running status, carries the current state information of optical network unit in indication (indication the is called for short IND) territory of the uplink frame sending to optical line terminal.
For example, in the indication territory of optical network unit use uplink frame, three bits of first bit to the are the current state information that bit1-bit3 (or indicating other three bits in territory) carrys out pilot light network element.
When the value of bit1-bit3 is 000, represent that the current state of described ONU is initial condition.
When the value of bit1-bit3 is 001, represent that the current state of described ONU is holding state.
When the value of bit1-bit3 is 010, represent that the current state of described ONU is serial-number-state.
When the value of bit1-bit3 is 011, represent that the current state of described ONU is distance measuring states.
When the value of bit1-bit3 is 100, represent that the current state of described ONU is running status.
When the value of bit1-bit3 is 101, represent that the current state of described ONU is POPUP state.
When the value of bit1-bit3 is 110, represent that the current state of described ONU is emergent stopping state.
The corresponding different ONU current state of different values of above-mentioned bit1-bit3 is an example of the present embodiment, also can adopt the different corresponding relations of value and the ONU current state of bit1-bit3 in other embodiment.
When ONU prepares to send uplink frame to OLT, the bit1-bit3 of ONU in the indication territory of uplink frame writes the value of current state, and ONU sends to OLT by the uplink frame that comprises current state information; OLT receives after the above-mentioned information of ONU transmission, obtains the current state of this ONU according to the value of indicating the bit1-bit3 in territory in the uplink frame receiving.
In the another kind of implementation of the present embodiment one, optical network unit increases by an optical network unit state indication (ONU state indication in the uplink frame sending to optical line terminal, be called for short OSI) territory, and indicate at this optical network unit state the current state information that carries described optical network unit in territory.This OSI territory can be positioned at demarcation (Delimiter) territory of uplink frame and the optional position between payload (Payload) territory, is preferably placed between demarcation (Delimiter) territory and Physical Layer OAM (PLOAM) message field of uplink frame.Seven bits in this OSI territory can be distinguished seven states of corresponding ONU, when ONU sends uplink frame, bit corresponding in the OSI territory of corresponding current state is put to 1, can represent the current state of this ONU, OLT determines the current state of ONU according to the bit value situation in OSI territory in the uplink frame of receiving.Current, in OSI territory, also can use three bits to represent seven states of ONU.
In the another kind of implementation of the present embodiment one, when the bit 10 in sign (Flags) territory in the allocated bandwidth structure that OLT distributes to ONU puts 1, indication ONU sends up PLOAM message, ONU receives after above-mentioned allocated bandwidth, ONU increases by an optical network unit state indication territory in the Physical Layer OAM message sending to optical line terminal, and carries current state information in this optical network unit state indication territory.Concrete, ONU can represent the state of optical network unit with the 1st bit to the 3 bits in this territory, expression mode can be identical with said method, repeats no more herein; Also can use 7 kinds of states of 7 corresponding optical network units of bit difference in this optical network unit status field.When ONU sends described PLOAM message, bit corresponding to ONU current state put to 1, ONU the described PLOAM message that has increased optical network unit state indication territory is sent to OLT.OLT obtains the current state information of ONU according to the content in the optical network unit state indication territory in the PLOAM message receiving.
Embodiment bis-
Optical line terminal is inquired about current state to optical network unit, and optical network unit is received after this inquiry, to optical line terminal, notified its current state.
The mode that optical line terminal is inquired about the state of this optical network unit to optical network unit is that optical line terminal carries the allocated bandwidth structure that represents inquiry optical network unit state in the downlink frame sending to optical network unit, in this allocated bandwidth structure, indicate described optical network unit feedback to carry the Physical Layer OAM message of current state, described optical network unit is received after this downlink frame, sends the Physical Layer OAM message of carrying current state information to described optical line terminal.
In the time of need to inquiring the current state of ONU, OLT sends the allocated bandwidth structure (Allocation structure) of an ONU status request to described ONU, comprise allocation identification (Alloc-ID), sign (Flags) territory, the zero hour (StartTime), the finish time (StopTime), cyclic redundancy check (CRC) (Cyclic Redundancy Check is called for short CRC) territory.
Wherein, allocation identification, is used to indicate optical network unit marks (ONU-ID), if OLT distributes ONU-ID to this ONU, the value of Alloc-ID is 254.
The bit 10 in sign (Flags) territory is put 1 o'clock, and indication ONU sends up PLOAM message; The significant bits in sign (Flags) territory is put 1 o'clock, and indication ONU sends the PLOAM message of carrying ONU state.
The zero hour, (Starttime) was used to indicate the time that ONU starts to send data;
The finish time, (StopTime) was used to indicate the time that ONU stops sending data;
Cyclic redundancy check (CRC) territory for this reason allocated bandwidth structure provides check information.
OLT can also be that the open ONU of described ONU is for sending the quiet window of the PLOAM message of the own current state of indication in the allocated bandwidth structure that sends ONU status request to ONU.The effect of this quiet window is the PLOAM message that sends the own current state of indication for ONU in this quiet window, and in described quiet window, other ONU can not send upstream data.The PLOAM message that this quiet window can avoid ONU to send the own current state of indication sends conflicting between upstream data with other ONU.
ONU receives after the above-mentioned allocated bandwidth structure of OLT transmission, ONU is carried on the current state information of oneself in PLOAM message, in the above-mentioned zero hour (Starttime), send to OLT, OLT obtains the current state of described ONU according to the PLOAM message that is used to indicate ONU current state receiving.
The mode that ONU sends the PLOAM message of carrying optical network unit state to OLT comprises following two kinds:
Mode one:
The PLOAM message of newly-built one type, the type of this PLOAM message is optical network unit state indication type, in this Physical Layer OAM message, carry optical network unit status field, described optical network unit is indicated current state in this optical network unit status field.
The structure of the PLOAM message of this type is as shown in the table:
Table 1
| ONU sign |
| Type of message |
| Optical network unit status field |
| Check information territory |
The PLOAM message of indication ONU current state is formed and is respectively by four part:
ONU sign (being the ONU-ID that sends this PLOAM message);
PLOAM type of message (for example can value be 10000000); This type is specially optical network unit state indication type, and being used to indicate this PLOAM message is the PLOAM message of carrying ONU current state.
Optical network unit status field; Be used to indicate the current state of optical network unit.Can with the 1st bit to the 3 bits in this territory, represent the state of optical network unit, expression mode can be identical with embodiment mono-, repeats no more herein.Also can use 7 kinds of states of 7 corresponding optical network units of bit difference in this optical network unit status field, ONU sends while being used to indicate the PLOAM message of ONU current state, the bit that ONU current state is corresponding puts 1, and then ONU sends to OLT by the PLOAM message that is used to indicate ONU current state again.
The check information territory of PLOAM message, for providing the check information of whole PLOAM message.
Mode two:
The Physical Layer OAM message that optical network unit sends to optical line terminal is the Physical Layer OAM message of existing type, optical network unit increases by an optical network unit state indication territory in this Physical Layer OAM message, and carries current state information in this optical network unit state indication territory.
Embodiment tri-
Embodiment tri-is basic identical with the thinking of embodiment bis-, is all that optical line terminal is inquired about current state to optical network unit, and optical network unit is received after this inquiry, to optical line terminal, notified its current state.Embodiment tri-is with the difference of embodiment bis-, and optical line terminal is different to the mode of optical network unit inquiry current state.
In embodiment tri-, the mode that optical line terminal is inquired about the state of this optical network unit to optical network unit is that optical line terminal sends for inquiring the Physical Layer OAM message of the state of this optical network unit to optical network unit, the Physical Layer OAM message that this Physical Layer OAM message is a kind of newtype, the type of message of this Physical Layer OAM message is optical network unit status poll type, optical network unit sends the Physical Layer OAM message of carrying current state information to optical line terminal after receiving this Physical Layer OAM message.
The structure of the PLOAM message of OLT inquiry ONU current state is as follows:
Table 2
| ONU sign |
| Type of message |
| Data field |
| Check information |
As shown in table 2, for OLT, inquire that the PLOAM message of ONU current state is comprised of four parts, be respectively the check information of ONU sign (being ONU-ID), PLOAM type of message, data field and whole PLOAM message.
ONU sign is the sign that receives the ONU of this PLOAM message, if OLT distributes ONU-ID to described ONU, the value of this part is 254.
Type of message, shows that this PLOAM type of message, for for inquiring the PLOAM message of ONU current state, can value be 10000001.
Data field is for retaining territory.
Check information, for providing the check information of whole PLOAM message.
When OLT need to inquire ONU current state, OLT sends the PLOAM message for OLT inquiry ONU current state shown in table 2 to ONU, ONU receives after above-mentioned PLOAM message, in a kind of mode in two kinds of modes shown in example two, to OLT, reply the PLOAM message of carrying ONU current state, OLT obtains the current state of ONU according to the PLOAM message that is used to indicate ONU current state receiving.
Certainly; the present invention also has other multiple implementation method; in the situation that not deviating from spirit of the present invention and essence thereof; those skilled in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the Notification Method of state of optical network unit in passive optical network, is characterized in that,
Optical network unit ONU when sending uplink frame to optical line terminal OLT or described optical line terminal OLT to described optical network unit ONU, inquire about after the state of this optical network unit ONU, described optical network unit ONU by current state notice to described optical line terminal OLT; Described optical network unit increases by an optical network unit state indication territory in the uplink frame sending to described optical line terminal, and indicate at this optical network unit state the current state information that carries described optical network unit in territory, or, in the Physical Layer OAM message sending to described optical line terminal, increase by an optical network unit state indication territory, and in this optical network unit state indication territory, carry the current state information of described optical network unit; Described optical network unit state indication territory adopts three bits or seven bits to represent seven states of ONU, and OLT determines the current state of ONU according to the bit value situation in optical network unit state indication territory in the uplink frame of receiving.
2. the method for claim 1, is characterized in that,
The mode that described optical line terminal is inquired about the state of this optical network unit to described optical network unit is that described optical line terminal carries the allocated bandwidth structure that represents inquiry optical network unit state in the downlink frame sending to described optical network unit, in this allocated bandwidth structure, indicate described optical network unit feedback to carry the Physical Layer OAM message of current state, described optical network unit is received after this downlink frame, sends the Physical Layer OAM message of carrying current state information to described optical line terminal.
3. the method for claim 1, is characterized in that,
The mode that described optical line terminal is inquired about the state of this optical network unit to described optical network unit is that described optical line terminal sends for inquiring the Physical Layer OAM message of the state of this optical network unit to described optical network unit, the type of message of this Physical Layer OAM message is optical network unit status poll type, and described optical network unit sends the Physical Layer OAM message of carrying current state information to described optical line terminal after receiving this Physical Layer OAM message.
4. method as claimed in claim 2 or claim 3, is characterized in that,
The type of message of the Physical Layer OAM message that described optical network unit sends to described optical line terminal is optical network unit state indication type, and in this Physical Layer OAM message, carry optical network unit status field, described optical network unit is indicated current state in this optical network unit status field.
5. method as claimed in claim 2 or claim 3, is characterized in that,
The Physical Layer OAM message that described optical network unit sends to described optical line terminal is the Physical Layer OAM message of existing type, described optical network unit increases by an optical network unit state indication territory in this Physical Layer OAM message, and carries current state information in this optical network unit state indication territory.
6. the reporting system of the optical network unit state in EPON, comprises optical network unit ONU and optical line terminal OLT, it is characterized in that,
Described optical network unit, for when sending uplink frame to optical line terminal, notifies current state to described optical line terminal; Or, at described optical line terminal, to described optical network unit, inquire about after the state of this optical network unit, current state is notified to described optical line terminal; Described optical network unit also increases by an optical network unit state indication territory for the uplink frame sending to described optical line terminal, and in this optical network unit state indication territory, carries the current state information of described optical network unit; Or, in the Physical Layer OAM message sending to described optical line terminal, increase by an optical network unit state indication territory, and in this optical network unit state indication territory, carry the current state information of described optical network unit; Described optical network unit state indication territory adopts three bits or seven bits to represent seven states of ONU, and OLT determines the current state of ONU according to the bit value situation in optical network unit state indication territory in the uplink frame of receiving;
Described optical line terminal, for inquiring about the state of this optical network unit to described optical network unit.
7. system as claimed in claim 6, is characterized in that,
The mode that described optical line terminal is inquired about the state of this optical network unit to described optical network unit is that described optical line terminal carries the allocated bandwidth structure that represents inquiry optical network unit state in the downlink frame sending to described optical network unit, indicates described optical network unit feedback to carry the Physical Layer OAM message of current state in this allocated bandwidth structure;
Described optical network unit, also for receiving after this downlink frame, sends the Physical Layer OAM message of carrying current state information to described optical line terminal.
8. system as claimed in claim 6, is characterized in that,
The mode that described optical line terminal is inquired about the state of this optical network unit to described optical network unit is that described optical line terminal sends for inquiring the Physical Layer OAM message of the state of this optical network unit to described optical network unit, and the type of message of this Physical Layer OAM message is optical network unit status poll type;
Described optical network unit also sends the Physical Layer OAM message of carrying current state information to described optical line terminal after receiving this Physical Layer OAM message.
9. system as claimed in claim 7 or 8, is characterized in that,
The type of message of the Physical Layer OAM message that described optical network unit sends to described optical line terminal is optical network unit state indication type, and carries optical network unit status field in this Physical Layer OAM message;
Described optical network unit, also for indicating current state in this optical network unit status field.
10. system as claimed in claim 7 or 8, is characterized in that,
The Physical Layer OAM message that described optical network unit sends to described optical line terminal is the Physical Layer OAM message of existing type;
Described optical network unit also for increase by an optical network unit state indication territory in this Physical Layer OAM message, and carries current state information in this optical network unit state indication territory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910260722.XA CN102111689B (en) | 2009-12-29 | 2009-12-29 | Method and system for notifying state of optical network unit in passive optical network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910260722.XA CN102111689B (en) | 2009-12-29 | 2009-12-29 | Method and system for notifying state of optical network unit in passive optical network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102111689A CN102111689A (en) | 2011-06-29 |
| CN102111689B true CN102111689B (en) | 2014-03-12 |
Family
ID=44175691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910260722.XA Expired - Fee Related CN102111689B (en) | 2009-12-29 | 2009-12-29 | Method and system for notifying state of optical network unit in passive optical network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102111689B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116405807A (en) * | 2021-12-27 | 2023-07-07 | 中兴通讯股份有限公司 | Authentication method and device of optical network unit, electronic equipment and storage medium |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100594028B1 (en) * | 2003-04-15 | 2006-07-03 | 삼성전자주식회사 | GTC Frame Structure for Transmitting OMCI in GPON and Transmitting Method |
| JP4602853B2 (en) * | 2005-07-04 | 2010-12-22 | 日本電信電話株式会社 | Emergency call system |
| CN101047443B (en) * | 2006-06-06 | 2010-10-13 | 华为技术有限公司 | Fault detection debugging method of passive optical network system and communication message device |
| CN101247665B (en) * | 2008-03-25 | 2010-12-29 | 中兴通讯股份有限公司 | Method for improving gigabit passive optical network reliability |
-
2009
- 2009-12-29 CN CN200910260722.XA patent/CN102111689B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102111689A (en) | 2011-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101677415B (en) | Optical network system data link switching method, optical network unit and system | |
| JP5210959B2 (en) | Optical passive network system and operation method thereof | |
| CN102075240B (en) | Method and system for performing ranging on optical network unit in passive optical network | |
| CN102075820B (en) | Method and device for measuring distance in passive optical network | |
| CN102082976B (en) | Method and system for sending data in passive optical network (PON) | |
| CN102075238B (en) | Passive optical network and protection switching method thereof | |
| US9998211B2 (en) | Protection switching method, system, and apparatus for passive optical network | |
| CN103634709A (en) | A method used for supporting an optical network unit to migrate between a plurality of passive optical network (PON)s | |
| CN103841474A (en) | Passive optical network wavelength tuning method, system and device | |
| CN102387426B (en) | Uplink bandwidth allocation method in EPON | |
| CN102142898B (en) | Ranging method and device of nested PON (passive optical network) | |
| CN101945305A (en) | Method and system for realizing time synchronization | |
| CN102377481B (en) | Distance-finding method in a kind of EPON and system | |
| CN109429118B (en) | Bandwidth allocation method, device and system | |
| CN101998190A (en) | Method for consultation in passive optical network, passive optical network system and network elements | |
| EP2506462A1 (en) | Power saving method, system and optical network unit in passive optical network | |
| CN101515883B (en) | Resource allocation request, method and system of allocation, optical network terminal and optical line terminal | |
| CN103139669A (en) | Method and system for sending data | |
| CN102111689B (en) | Method and system for notifying state of optical network unit in passive optical network | |
| CN101827287A (en) | Passive optical network and access method thereof, optical network unit and optical line terminal | |
| EP2723015A1 (en) | Method and device for communicating granularity of parameters | |
| CN102223185B (en) | Method and system for determining topology structure of passive optical network | |
| CN102075277B (en) | Method and system for synchronizing uplink transmission in passive optical network | |
| CN102316015A (en) | Method and system for notifying state change of optical network unit | |
| CN101567726A (en) | Method for processing frame data, optical network unit, optical line terminal and optical network system |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20201229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |