CN102217328B - OMCI message transmission method, device and passive optical network - Google Patents
OMCI message transmission method, device and passive optical network Download PDFInfo
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- CN102217328B CN102217328B CN201180000601.7A CN201180000601A CN102217328B CN 102217328 B CN102217328 B CN 102217328B CN 201180000601 A CN201180000601 A CN 201180000601A CN 102217328 B CN102217328 B CN 102217328B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
Abstract
The invention provides an OMCI (Ont Management and Control Interface)message transmission method, a device and a passive optical network. The OMCI message transmission method includes dividing to-be-sent OMCI messages into groups, wherein OMCI messages in a same group have dependence and OMCI messages in different groups have no dependence; determining a maximum number of concurrent OMCI messages supported between an OLT and ONT; according to the maximum number of concurrent OMCI messages supported between an OLT and ONT, acquiring OMCI messages from groups that not waiting for response and sending to the ONT.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of Optical Network Termination Management and Control Interface (ONT Management and Control Interface, OMCI) method for message transmission, device and EPON (Passive Optical Network, PON) system.
Background technology
Passive optical network mainly is made up of OLT (optical line terminal), ODN (Optical Distribution Network) and ONT (Optical Network Terminal).In GPON (gigabit passive optical network)/10GPON (10 gigabits have no chance optical-fiber network), OLT adopts the OMCI agreement that ONT is managed and disposes.Definition according to existing OMCI agreement, the mode of transmission OMCI message is " table tennis formula " between OLT and the ONT, as shown in Figure 1, ONT receives OMCI message (OMCI Message) that OLT issues and returns corresponding OMCI receive the response (OMCI Response Message) to OLT afterwards, await a response overtimely when OLT receives receiveing the response of a last OMCI message or OLT, could continue to send next bar OMCI message; If do not receive receiveing the response of an OMCI message, then can not send next bar OMCI message.Along with the application that GPON/10GPON supports is constantly expanded, the OMCI message that is used for configuration ONT is also more and more, adopts " table tennis formula " transmission of messages mode of above-mentioned agreement regulation can cause OMCI allocative efficiency and OMCI bandwidth chahnel utilance lower.
In view of this, industry propose to adopt the OMCI message of variable length, by increasing configuration speed and the efficient that amount of information that wall scroll OMCI message carries improves OMCI.But even adopt the OMCI message of variable length, the OMCI interacting message mode between OLT and the ONT still is " table tennis formula ".Therefore, OMCI allocative efficiency and the OMCI bandwidth chahnel utilance of the PON system of the OMCI message of employing variable length are still lower.
Summary of the invention
Embodiments of the invention provide a kind of OMCI method for message transmission and device, have effectively improved OMCI allocative efficiency and the OMCI bandwidth chahnel utilance of PON system.Embodiments of the invention also further provide a kind of PON system that adopts above-mentioned OMCI method for message transmission and device.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of OMCI method for message transmission comprises:
OMCI message to be sent is divided into groups, and wherein the OMCI message in the same grouping has dependence, the OMCI message no dependence between the different grouping;
Determine the quantity of the maximum concurrent OMCI message of current support between OLT and the ONT;
According to the quantity of the maximum concurrent OMCI message of current support between described OLT and the ONT, from the grouping that is in the non-state that awaits a response, obtain the OMCI information and sending and give ONT.
A kind of OMCI massage transmission device comprises:
Grouped element is used for OMCI message to be sent is divided into groups, and wherein the OMCI message in the same grouping has dependence, the OMCI message no dependence between the different grouping;
Determining unit is for the quantity of determining the maximum concurrent OMCI message of current support between OLT and the ONT;
Transmitting element is used for the quantity according to the maximum concurrent OMCI message of current support between described OLT and the ONT, obtains the OMCI information and sending and give ONT from the grouping that is in the non-state that awaits a response.
A kind of passive optical network comprises OLT and a plurality of ONT, and wherein said OLT is connected to described a plurality of ONT by Optical Distribution Network ODN with the form of putting multiple spot;
Wherein said OLT is used for OMCI message to be sent is divided into groups, and wherein the OMCI message in the same grouping has dependence, the OMCI message no dependence between the different grouping; Determine the maximum concurrent message bar number of current support between OLT and the ONT; And, according to the quantity of the maximum concurrent OMCI message of current support between described OLT and the described ONT, from the grouping that is in the non-state that awaits a response, obtain the OMCI information and sending and give described ONT;
Described ONT is used for receiving the OMCI message that described OLT sends, and returns and corresponding the receiveing the response of described OMCI message to described OLT.
The technical scheme that the embodiment of the invention provides, when sending OMCI message, according to no dependence is arranged OMCI message is divided into groups, make the OMCI message in the same grouping have dependence, OMCI message no dependence between the different grouping, send thereby make OLT from a plurality of groupings, to obtain OMCI message simultaneously, and when receiveing the response of the OMCI of certain grouping message do not returned, can also from other the grouping of the non-state that awaits a response, obtain OMCI message and send.Compared with prior art, the technical scheme that the embodiment of the invention provides has realized the concurrent of many OMCI message between OLT and the ONT, thereby has effectively improved OMCI allocative efficiency and the OMCI bandwidth chahnel utilance of PON system.
Description of drawings
Fig. 1 is for adopting the OMCI interacting message schematic diagram of " table tennis formula " transmission means;
Fig. 2 is the structural representation of passive optical network;
The flow chart of the OMCI method for message transmission that Fig. 3 provides for an embodiment of the present invention;
The structure chart of the OMCI massage transmission device that Fig. 4 provides for an embodiment of the present invention;
The flow chart of the OMCI method for message transmission that Fig. 5 provides for the another kind of embodiment of the present invention;
The structure chart of the OMCI massage transmission device that Fig. 6 provides for the another kind of embodiment of the present invention;
Fig. 7 is the structural representation of determining unit in the OMCI massage transmission device shown in Figure 6.
Embodiment
Below in conjunction with accompanying drawing embodiment of the invention OMCI method for message transmission, device and passive optical network are described in detail.
See also Fig. 1, embodiment of the invention the OMCI transmission method that provides and the structural representation that installs EPON (PON) system that can be suitable for are provided for it.Described PON system 100 comprises at least one optical line terminal (OLT) 110 and a plurality of Optical Network Terminal (ONT) 120.Described OLT 110 is connected to described a plurality of ONT 120 by ODN 130 with the form of putting multiple spot.Wherein, the direction from described OLT 110 to described ONT 120 is defined as down direction, and the direction from described ONT 120 to described OLT 110 is up direction.
Described PON system 100 realizes the communication network of the data distribution between described OLT 110 and the described ONT 120 without any need for active device, such as, the data distribution between described OLT 110 and the described ONT 120 can realize by the Passive Optical Components (such as optical splitter) among the described ODN 130.And in specific embodiment, described PON system 100 can be gigabit passive optical network (GPON) system or next-generation passive optical network (such as XGPON etc.), and perhaps other adopt the PON system that the OMCI mode manages and disposes.
Described OLT 110 is usually located at center (for example central office), and it can adopt the described a plurality of ONT 120 of OMCI mode unified management, and transmits data between described ONT 120 and upper layer network (not shown).Specifically, described OLT 110 can serve as the media between described ONT 120 and the described upper layer network, to be forwarded to described ONT 120 from the data that described upper layer network receives, and will be forwarded to described upper layer network from the data that described ONT 120 receives.The configuration of the concrete structure of described OLT 110 may be different because of the particular type of described PON system 100, such as, in one embodiment, described OLT 110 can comprise descending sending module and up receiver module, described descending sending module is used for sending downlink optical signal (such as OMCI message) to described optical network unit, described up receiver module is used for receiving the uplink optical signal (receiveing the response such as OMCI) from described optical network unit, and wherein said downlink optical signal and uplink optical signal can transmit by described ODN 130.And described descending sending module can separate configurations become a pluggable optical module with up receiver module.
Described ONT 120 can be arranged on user's side position (such as user resident) by distributed earth.Described ONT 120 can be the network equipment that is used for communicating with described OLT 110 and user, particularly, described ONT 120 can serve as the media between described OLT 110 and the described user, for example, described ONT 120 can be forwarded to described user with the data that receive from described OLT 110, and will be forwarded to described OLT 110 from the data that described user receives.Equally, the configuration of the concrete structure of described ONT 120 may be different because of the particular type of described PON system 100, such as, in one embodiment, described ONT 120 can also comprise up sending module and descending receiver module, described up sending module is used for sending uplink optical signal (receiveing the response such as OMCI) to described OLT, and described descending receiver module is used for receiving the downlink optical signal (such as OMCI message) from described optical network line terminal.And described up sending module also can separate configurations become a pluggable optical module with descending receiver module.In addition, should be appreciated that the structure of described ONT 120 and Optical Network Terminal (Optical Network Unit, ONU) close, therefore in the scheme that present specification provides, can exchange between optical network unit and the Optical Network Terminal.
Described ODN 130 can be a data distribution systems that adopts one-level light splitting or multistage light splitting, and it can comprise optical fiber, optical coupler, optical branching device and/or other equipment.In one embodiment, described optical fiber, optical coupler, optical branching device and/or other equipment can be Passive Optical Components, specifically, described optical fiber, optical coupler, optical branching device and/or other equipment can be that distribute data signals is the device that does not need power supply to support between described OLT 110 and described ONT 120.In addition, in other embodiments, this ODN 130 can also comprise one or more treatment facilities, for example, and image intensifer or trunking (Relay device).In branched structure as shown in Figure 2, described ODN 130 specifically can extend to described a plurality of ONT 120 from described OLT 110, but also can be configured to other any points to the structure of multiple spot.
Below with reference to PON system shown in Figure 2, OMCI transmission of messages mode and device that various embodiments of the invention are provided describe in detail.
Embodiment 1:
The OMCI method for message transmission that the embodiment of the invention provides can be carried out in the OLT of PON shown in Figure 2 system.See also Fig. 3, described method can comprise:
101, with OMCI message to be sent according to having or not dependence to divide into groups, wherein the OMCI message in the same grouping has dependence, the OMCI message no dependence between the different grouping;
102, determine the quantity of the maximum concurrent OMCI message of current support between OLT and the ONT;
103, search the grouping that is in the non-state that awaits a response;
104, between the quantity of the OMCI message that sends and await a response is less than described OLT and ONT during the quantity of the maximum concurrent OMCI message of current support, from the described grouping that is in the non-state that awaits a response that do not await a response, obtains OMCI message and send to ONT.
Wherein, the described OMCI message that has sent and awaited a response can be defined as: described OMCI message sends to ONT by OLT, but described OLT does not receive the correspondence of being returned by described ONT as yet and receives the response, and namely described OLT is in wait from the state of receiveing the response of described ONT;
The described grouping that is in the non-state that awaits a response can for: sent OMCI message and received the grouping of receiveing the response or do not send the grouping of OMCI message or sent OMCI message, do not receiveed the response and the stand-by period has surpassed the grouping of the time-out time of agreement regulation but receive.
The method that adopts present embodiment to provide, when sending OMCI message, according to no dependence is arranged OMCI message is divided into groups, make the OMCI message in the same grouping have dependence, OMCI message no dependence between the different grouping, send thereby make OLT from a plurality of groupings, to obtain OMCI message simultaneously, and when receiveing the response of the OMCI of certain grouping message do not returned, can also from other the grouping of the non-state that awaits a response, obtain OMCI message and send.Compared with prior art, the technical scheme that the embodiment of the invention provides has realized that many OMCI message are concurrent between OLT and the ONT, thereby has effectively improved OMCI allocative efficiency and the OMCI bandwidth chahnel utilance of PON system.
Embodiment 2:
The OMCI massage transmission device that the embodiment of the invention provides can be configured in the OLT of PON shown in Figure 2 system, sees also Fig. 4, and described OMCI massage transmission device can comprise: grouped element 201, determining unit 202 is searched unit 203 and transmitting element 204.
Wherein, grouped element 201 is used for OMCI message to be sent according to having or not dependence to divide into groups, and wherein the interior OMCI message of same grouping has dependence, the OMCI message no dependence between the different grouping;
Determining unit 202 is for the quantity of determining the maximum concurrent OMCI message of current support between OLT and the ONT;
Transmitting element 204, be used for quantity in the OMCI message that sends and await a response less than described OLT and ONT between the maximum concurrent message bar of current support when counting, from the described grouping that is in the non-state that awaits a response, obtain the OMCI information and sending and give ONT;
Wherein, the described grouping that is in the non-state that awaits a response can for: sent OMCI message and received the grouping of receiveing the response or do not send the grouping of OMCI message or sent OMCI message, do not receiveed the response and the stand-by period has surpassed the grouping of the time-out time of agreement regulation but receive.
The device that adopts present embodiment to provide, when sending OMCI message, according to no dependence is arranged OMCI message is divided into groups, make the OMCI message in the same grouping have dependence, OMCI message no dependence between the different grouping, send thereby make OLT from a plurality of groupings, to obtain OMCI message simultaneously, and when receiveing the response of the OMCI of certain grouping message do not returned, can also from other the grouping of the non-state that awaits a response, obtain OMCI message and send.Compared with prior art, the technical scheme that the embodiment of the invention provides has realized that many OMCI message are concurrent between OLT and the ONT, thereby has effectively improved OMCI allocative efficiency and the OMCI bandwidth chahnel utilance of PON system.
Embodiment 3:
The OMCI transmission method and the transmission that provide based on above-described embodiment 1 and 2, the embodiment of the invention also further provides a kind of PON system, described PON system can be as shown in Figure 2, it comprises: at least one OLT and a plurality of Optical Network Terminal ONT, wherein said OLT is connected to described a plurality of ONT by ODN with the form of putting multiple spot, and described OLT can realize that described ONT manages and disposes by sending OMCI message to described ONT.
Wherein, described OLT is used for OMCI message to be sent making the interior OMCI message of same grouping have the OMCI message no dependence between the dependence different grouping according to having or not dependence to divide into groups; And, when the maximum concurrent message bar of current support is counted between the quantity of the OMCI message that sends and await a response is less than described OLT and ONT, from the grouping that is in the non-state that awaits a response, obtain the OMCI information and sending and give described ONT;
ONT is used for receiving the OMCI message that described OLT sends, and returns and corresponding the receiveing the response of described OMCI message to described OLT.
Wherein, the described grouping that is in the non-state that awaits a response can for: sent OMCI message and received the grouping of receiveing the response or do not send the grouping of OMCI message or sent OMCI message, do not receiveed the response and the stand-by period has surpassed the grouping of the time-out time of agreement regulation but receive.
The system that adopts present embodiment to provide, OLT is according to there being no dependence to divide into groups to sent OMCI message, make the OMCI message in the same grouping have dependence, OMCI message no dependence between the different grouping, thereby making OLT to obtain OMCI message simultaneously from a plurality of groupings sends, and when receiveing the response of the OMCI of certain group message do not returned, can also from other the grouping of the non-state that awaits a response, obtain OMCI message and send.Compared with prior art, the technical scheme that the embodiment of the invention provides has realized the concurrent of multiple messages between OLT and the ONT, thereby has effectively improved OMCI allocative efficiency and the OMCI bandwidth chahnel utilance of PON system.
Embodiment 4:
The transmission method of the OMCI message that the embodiment of the invention provides as shown in Figure 5, may further comprise the steps:
401, with OMCI message to be sent according to having or not dependence to divide into groups, make that the OMCI message in the same grouping has dependence, the OMCI message no dependence between the different grouping.
In specific embodiment, have dependence between the OMCI message and can be reflected as the response result that the wherein transmission of an OMCI message need depend on another OMCI message.Such as, have or not between the described OMCI message dependent determination methods can for: if OLT is when issuing next bar OMCI message, need to rely on receiveing the response of a last OMCI message, that is after OLT receives receiveing the response of a last OMCI message, could continue to send next bar OMCI message, then described last one and next bar OMCI message have dependence; Otherwise then described last one and next bar OMCI message do not have dependence.
Particularly, with OMCI message to be sent according to having or not dependence to divide into groups, can be in the following way:
Mode one, divide into groups according to the type of service under the OMCI message to be sent.Owing to do not have dependence usually between the OMCI message of different service types, thereby the OMCI message of different service types can be divided in different groupings, the OMCI message of same type of service is divided in same grouping.
For example, belonging to two layer services can be divided in the different groupings with the OMCI message that belongs to the professional VOIP of ip voice.
Mode two, with in a kind of type of service, different relation between objects are configured to no dependence.
For example, in two layer services, the corresponding OMCI message of ONT different port can be divided into different grouping, and all OMCI message of same port are divided in the same grouping.
402, determine the quantity of the maximum concurrent OMCI message of current support between OLT and the ONT.
Particularly, step 402 can realize as follows:
At first, obtain the quantity of the maximum concurrent OMCI message of ONT support.
In the present embodiment, the quantity of the maximum concurrent OMCI message that described ONT supports can be obtained by following any mode:
Mode one: ONT reports (management information base upload by management information bank, mib upload) its configuration and ability are reported OLT, configuration and the ability of wherein said ONT comprise: the quantity of the maximum concurrent OMCI message that described ONT supports.According to agreement G.984.4, the ONT initial activation and when being registered to OLT or OLT find that when asynchronous with the mib of ONT, OLT can report OLT to the configuration of ONT and ability by requiring ONT to carry out mib upload.In this process, can or in agreement G.984.4, carry the quantity of the maximum concurrent OMCI message that described ONT supports to the extended attribute of ONT2-G message or other message by the expansion new information, inform OLT.
Mode two: OLT sends to ONT and is used for obtaining the request message of the maximum concurrent OMCI message number of the current support of ONT, and receives described ONT by the quantity of the maximum concurrent OMCI message of the described ONT support of the carrying of receiveing the response accordingly.When OLT need learn the quantity of the maximum concurrent OMCI message that ONT supports, OLT can initiatively send the request message that is used for obtaining the maximum concurrent OMCI message number of the current support of ONT to ONT, after ONT receives this request message, return accordingly to OLT and to receive the response, wherein said receiveing the response carries the quantity of the maximum concurrent OMCI message that described ONT supports.
Mode three: OLT receives ONT and changes (Attribute Value Change, AVC) quantity of the maximum concurrent OMCI message of the described ONT support of message transmission by property value.Such as, when moving reasons such as high CPU tasks occupying as ONT and causing the ability of the maximum concurrent OMCI message number of ONT to change, ONT can adopt the G.984.4 AVC mechanism of protocol definition, offers OLT on the quantity with the maximum concurrent OMCI message of its current support.
Secondly, calculate the quantity of the maximum concurrent OMCI message of OMCI passage support.
The quantity of the maximum concurrent OMCI message that the OMCI passage is supported can obtain by following calculating:
Y＝(x*1024*1024)/(z*8)；
Wherein, Y is that quantity, the x of the maximum concurrent OMCI message of OMCI passage support are that OMCI bandwidth chahnel, z are the size (being generally 53Byte) of each OMCI message.The unit of described OMCI bandwidth chahnel is: Mbit/s (MBPS), wherein the conversion relation between M (million) and bit (bit) is: 1M=1024*1024bit, 8 bit are 1 Byte (byte).
Then, judge the quantity of the maximum concurrent OMCI message that OLT supports.
Can be to be connected to the maximum concurrent OMCI message number sum that each ONT of described OLT supports such as, the quantity of the maximum concurrent OMCI message that described OLT supports.
At last, determine the quantity of the maximum concurrent OMCI message of current support between described OLT and the described ONT.
Particularly, the quantity of the maximum concurrent OMCI message of current support can be according to the maximum concurrent OMCI message number of described OLT support and the definite negotiated amount of maximum concurrent OMCI message number of described ONT support between described OLT and the described ONT, such as, the quantity of the maximum concurrent OMCI message that described negotiated amount can be supported for described OLT and the quantity of the maximum concurrent OMCI message that described ONT the supports minimum value between the two, that is:
Concurrent OMCI message negotiated amount=min (the maximum concurrent OMCI message number that described OLT supports, the maximum concurrent OMCI message number that ONT supports);
But, the restriction that the concurrent OMCI message number that system uses can not exceed OMCI bandwidth chahnel size, that is:
When concurrent OMCI message number that described concurrent OMCI message negotiated amount is supported less than the OMCI passage, described concurrent OMCI message negotiated amount finally can be defined as the quantity of the maximum concurrent OMCI message of current support between described OLT and the described ONT, and with its concurrent OMCI message number as the final use of system;
When maximum concurrent OMCI message number that described concurrent OMCI message negotiated amount is supported more than or equal to the OMCI passage, the quantity of the maximum concurrent OMCI message of current support between described OLT and the described ONT need be defined as the quantity of the maximum concurrent OMCI message of described OMCI message channel support.
Specifically can be expressed as follows:
The concurrent OMCI message number that the concurrent quantity of OMCI message=concurrent OMCI message negotiated amount of determining＜OMCI bandwidth chahnel is supported? concurrent OMCI message negotiated amount: the concurrent OMCI message number that the OMCI bandwidth chahnel is supported;
In step 4022, suppose that OMCI bandwidth chahnel x is 1M, each OMCI message 53Byte, the OMCI message number that then can transmit in 1 second is: Y=(x*1024*1024)/(z*8)=2478 namely, can send 2478 message in 1 second.
By above-mentioned calculating as can be seen, usually, the maximum concurrent OMCI message number that the OMCI bandwidth chahnel is supported is very big; By contrast, OLT and ONT are limited by the CPU disposal ability, the maximum concurrent OMCI message number that the maximum concurrent OMCI message number of the two support is supported much smaller than the OMCI passage.Therefore, support the maximum concurrent number that depends primarily on OLT and ONT support of maximum concurrent OMCI message number between OLT and the ONT.This shows, on specific implementation, along with the application of the enhancing of CPU disposal ability, multi-core CPU etc., when making the disposal ability of OLT and ONT can reach the bandwidth restriction, just may need to consider the maximum concurrent OMCI message count quantitative limitation of OMCI bandwidth chahnel to supporting between OLT and the ONT.
Need to prove, above-mentioned obtain maximum concurrent OMCI message number that described ONT supports, maximum concurrent OMCI message number that described OLT supports and the support of described OMCI passage the order of step of maximum concurrent OMCI message number do not influence the realization of the embodiment of the invention, namely the order of above-mentioned steps can be combination in any.
403, judge that the OMCI message number sent and to have awaited a response is whether less than the maximum concurrent OMCI message number of current support between described OLT and the described ONT.If the OMCI message bar number that has sent and awaited a response enters 404 less than the maximum concurrent OMCI message number of current support between described OLT and the described ONT; If the maximum concurrent OMCI message number greater than current support between described OLT and the described ONT that has sent OMCI message bar number and awaited a response finishes to send.
404, search the grouping that is in the non-state that awaits a response.If find the grouping that is in the non-state that awaits a response, then enter 405; If do not find the grouping that is in the non-state that awaits a response, then finish to send.
Described be in the non-grouping that awaits a response can for: sent OMCI message and received the grouping of receiveing the response or do not send the grouping of OMCI message or sent OMCI message, do not receiveed the response and the stand-by period has surpassed the grouping of the time-out time of agreement regulation but receive.
405, according to the maximum concurrent OMCI message number of current support between described OLT and the described ONT, from each is in the grouping of the non-state that awaits a response, obtain an OMCI message respectively, and will be in the OMCI message that gets access to the grouping of the non-state that awaits a response and issue ONT from each.
406, the described status of packets that is in the non-state that awaits a response is revised as the state of awaiting a response that is in, and the OMCI message that deletion has issued from described grouping.Wherein, the described grouping that is in the state of awaiting a response can for: sent OMCI message to ONT but do not received and receiveed the response.
After finishing after the 401-406 step or finishing to send, reenter 403, continue the transmission of follow-up OMCI message.
Be the introduction to the OMCI message transmitting process above, introduce below and receive the processing procedure that OMCI message is receiveed the response:
At first, OLT receives receiveing the response of the OMCI message that sent or waits for that reception has sent receiveing the response of OMCI message overtime.
Described overtime regulation in the G984.4 of International Telecommunications Union agreement is: the high-priority message time-out time that awaits a response is 1 second, and the low priority message time-out time that awaits a response is 3 seconds; 3 times overtime just think real overtime.
Secondly, described OLT will describedly send the affiliated packet modification of OMCI message for being in the non-state that awaits a response.
Then, described OLT puts the OMCI message in each grouping in order according to the relation between each OMCI message.
When receiving when sending the receiveing the response of OMCI message, finish this OMCI message and send, the OMCI message that deletion is sent completely in respective packets; Overtime when waiting for that reception has sent receiveing the response of OMCI message, this OMCI message transmission failure, the OMCI message of this transmission failure of reservation in corresponding grouping is waited to continue to send.
The method that adopts present embodiment to provide, OLT is when sending OMCI message, according to no dependence is arranged OMCI message is divided into groups, make the OMCI message in the same grouping have dependence, OMCI message no dependence between the different grouping, send thereby make OLT from a plurality of groupings, to obtain OMCI message simultaneously, and when receiveing the response of the OMCI of certain grouping message do not returned, can also from other the grouping of the non-state that awaits a response, obtain OMCI message and send.Compared with prior art, the technical scheme that the embodiment of the invention provides has realized the concurrent of many OMCI message between OLT and the ONT, thereby has effectively improved OMCI allocative efficiency and the OMCI bandwidth chahnel utilance of PON system.
Embodiment 5:
Based on above-mentioned OMCI method for message transmission embodiment, the application also further provides a kind of OMCI massage transmission device.See also Fig. 6, the structural representation of the OMCI massage transmission device that it provides for the embodiment of the invention.Described OMCI massage transmission device can be configured in OLT, is used for the message to ONT transmission OMCI.
Described OMCI massage transmission device can comprise:
Grouped element 701 is used for OMCI message to be sent making the interior OMCI message of same grouping have dependence, the OMCI message no dependence between the different grouping according to having or not dependence to divide into groups;
Determining unit 702 is for the maximum concurrent OMCI message number of determining current support between OLT and the ONT;
Transmitting element 704 when the maximum concurrent message bar that is used for current support between the OMCI message bar number that sends and await a response is less than described OLT and ONT is counted, obtains OMCI message and sends to ONT from the described grouping that is in the non-state that awaits a response;
Wherein, the described grouping that is in the non-state that awaits a response can for: sent OMCI message and received the grouping of receiveing the response or do not send the grouping of OMCI message or sent OMCI message, do not receiveed the response and the stand-by period has surpassed the grouping of the time-out time of agreement regulation but receive.
Further, in specific embodiment, described OMCI massage transmission device can also comprise:
Second adjustment unit 706, be used for sending receiveing the response or when waiting for that time of receiveing the response that reception sent OMCI message is greater than Preset Time, being the grouping that is in the non-state that awaits a response with the described packet modification that has sent under the OMCI message of OMCI message receiving.
See also Fig. 7, in specific embodiment, described determining unit 702 can comprise:
The maximum concurrent several acquisition modules 7021 of ONT are for the quantity of the maximum concurrent OMCI message of obtaining the ONT support.
The maximum concurrent several computing modules 7022 of OMCI passage are for the quantity of determining the maximum concurrent OMCI message that the OMCI passage is supported.
The maximum concurrent several judge modules 7023 of OLT are for the quantity of judging the maximum concurrent OMCI message that OLT supports.Wherein, the quantity of the maximum concurrent OMCI message supported of described OLT can be to be connected to the maximum concurrent OMCI message number sum that each ONT of described OLT supports.
Maximum concurrent several determination modules 7024, be used for the quantity of the quantity of the maximum concurrent OMCI message supported according to described OLT, maximum concurrent OMCI message that described OMCI passage is supported and the quantity of the maximum concurrent OMCI message that described ONT supports, determine the maximum concurrent OMCI message number of current support between described OLT and the described ONT.
Further, in specific embodiment, the maximum concurrent several acquisition modules 7021 of described ONT can comprise:
The ONT management information bank receives submodule, the management information bank that is used for reception ONT reports (mib upload), and comprising configuration and the ability of described ONT from the management information bank that described ONT reports, configuration and the ability of described ONT comprise: the quantity of the maximum concurrent OMCI message that described ONT supports;
The maximum concurrent number of ONT obtains submodule, is used for obtaining from the management information bank that described ONT reports the quantity of the maximum concurrent OMCI message of described ONT support.
Perhaps, in a kind of alternate embodiment, the maximum concurrent several acquisition modules 7021 of described ONT can comprise:
Request message sends submodule, is used for sending the request message that is used for obtaining the maximum concurrent OMCI message number of the current support of ONT to ONT;
The maximum concurrent number of ONT obtains submodule, is used for receiving that described ONT returns and corresponding the receiveing the response of described request message, and obtains the quantity of the maximum concurrent OMCI message that described ONT supports from described receiveing the response.
Perhaps, in another kind of alternate embodiment, the maximum concurrent several acquisition modules 7021 of described ONT can comprise:
AVC message sink submodule is used for receiving the AVC message that ONT sends when the ability of its maximum concurrent OMCI message number changes, the maximum concurrent OMCI message number that wherein said AVC message bearing has current described ONT to support;
The maximum concurrent number of ONT obtains submodule, is used for obtaining from described AVC message the quantity of the maximum concurrent OMCI message of described ONT support.
The specific descriptions that the function of each module and concrete work can be consulted above-mentioned OMCI method for message transmission embodiment in the OMCI massage transmission device of present embodiment.
The device that adopts present embodiment to provide, OLT is when sending OMCI message, according to no dependence is arranged OMCI message is divided into groups, make the OMCI message in the same grouping have dependence, OMCI message no dependence between the different grouping, send thereby make OLT from a plurality of groupings, to obtain OMCI message simultaneously, and when receiveing the response of the OMCI of certain grouping message do not returned, can also from other the grouping of the non-state that awaits a response, obtain OMCI message and send.Compared with prior art, the technical scheme that the embodiment of the invention provides has realized that many OMCI message are concurrent between OLT and the ONT, thereby has effectively improved OMCI allocative efficiency and the OMCI bandwidth chahnel utilance of PON system.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, and described storage medium can be read-only memory, disk or CD etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (15)
1. an OMCI method for message transmission is characterized in that, comprising:
OMCI message to be sent is divided into groups, wherein, OMCI message in the same grouping has dependence, it is the response result that the wherein transmission of an OMCI message need depend on another OMCI message that described OMCI message has dependence, OMCI message no dependence between the different grouping, described OMCI message no dependence are the response result that the wherein transmission of an OMCI message does not need to depend on another OMCI message;
Determine the quantity of the maximum concurrent OMCI message of current support between optical line terminal OLT and the Optical Network Terminal ONT, comprising: the minimum value between the maximum concurrent OMCI message number three of the maximum concurrent OMCI message number that described OLT is supported, the maximum concurrent OMCI message number that described ONT supports and the OMCI passage support between described OLT and the ONT is defined as the quantity of the maximum concurrent OMCI message of current support between described OLT and the described ONT;
According to the quantity of the maximum concurrent OMCI message of current support between described OLT and the ONT, from the grouping that is in the non-state that awaits a response, obtain the OMCI information and sending and give described ONT.
2. OMCI method for message transmission according to claim 1, it is characterized in that, the described grouping that is in the non-state that awaits a response comprises: sent OMCI message and received the grouping of receiveing the response, do not send the grouping of OMCI message or sent OMCI message, do not receiveed the response and the stand-by period has surpassed the grouping of Preset Time but receive.
3. OMCI method for message transmission according to claim 1, it is characterized in that, from the described grouping that is in the non-state that awaits a response, obtaining after the OMCI information and sending gives ONT, also comprise: the described status of packets that is in the non-state that awaits a response is revised as the state of awaiting a response that is in.
4. OMCI method for message transmission according to claim 3, it is characterized in that, also comprise: send receiveing the response or when waiting for that time of receiveing the response that reception sent OMCI message is greater than Preset Time, the described status of packets that has sent under the OMCI message being revised as the non-state that awaits a response that is in of OMCI message receiving.
5. the transmission method of OMCI message according to claim 1 is characterized in that, described OMCI message to be sent is divided into groups to comprise:
The OMCI message of different service types is divided in different groupings, and the OMCI message of same type of service is divided in same grouping.
6. the transmission method of OMCI message according to claim 1 is characterized in that, described OMCI message to be sent is divided into groups to comprise:
In the OMCI message that belongs to a kind of type of service, the corresponding OMCI message of described ONT different port is divided into different grouping, and the corresponding OMCI message of the same port of described ONT is divided in same grouping.
7. the transmission method of OMCI message according to claim 1 is characterized in that, the quantity of the maximum concurrent OMCI message of current support comprises between described definite OLT and the ONT:
When the concurrent OMCI message number that maximum concurrent OMCI message number that maximum concurrent OMCI message number that described OLT supports and described ONT the support minimum value between the two is supported less than the OMCI passage between described OLT and the ONT, the minimum value of the maximum concurrent OMCI message number that the maximum concurrent OMCI message number that described OLT is supported and described ONT support between the two is defined as the quantity of the maximum concurrent OMCI message of current support between described OLT and the described ONT.
8. an OMCI massage transmission device is characterized in that, comprising:
Grouped element, be used for OMCI message to be sent is divided into groups, wherein the OMCI message in the same grouping has dependence, it is the response result that the wherein transmission of an OMCI message need depend on another OMCI message that described OMCI message has dependence, OMCI message no dependence between the different grouping, described OMCI message no dependence are the response result that the wherein transmission of an OMCI message does not need to depend on another OMCI message;
Determining unit, be used for to determine the quantity of the maximum concurrent OMCI message of current support between optical line terminal OLT and the Optical Network Terminal ONT, comprising: the minimum value between the maximum concurrent OMCI message number three of the maximum concurrent OMCI message number that described OLT is supported, the maximum concurrent OMCI message number of described ONT support and the OMCI passage support between described OLT and the ONT is defined as the quantity of the maximum concurrent OMCI message of current support between described OLT and the described ONT;
Transmitting element is used for the quantity according to the maximum concurrent OMCI message of current support between described OLT and the ONT, obtains the OMCI information and sending and give ONT from the grouping that is in the non-state that awaits a response.
9. OMCI massage transmission device according to claim 8, it is characterized in that, the described grouping that is in the non-state that awaits a response comprises: sent OMCI message and received the grouping of receiveing the response, do not send the grouping of OMCI message or sent OMCI message, do not receiveed the response and the stand-by period has surpassed the grouping of Preset Time but receive.
10. the transmitting device of OMCI message according to claim 8 is characterized in that, also comprises:
First adjustment unit is used for the described grouping that is in the non-state that awaits a response being obtained the OMCI information and sending to after the ONT the described status of packets that is in the non-state that awaits a response being revised as the state of awaiting a response that is in.
11. the transmitting device of OMCI message according to claim 8 is characterized in that, also comprises:
Second adjustment unit, be used for sending receiveing the response or when waiting for that time of receiveing the response that reception sent OMCI message is greater than Preset Time, the described status of packets that has sent under the OMCI message being revised as the non-state that awaits a response that is in of OMCI message receiving.
12. the transmitting device of OMCI message according to claim 8 is characterized in that, described determining unit comprises:
The maximum concurrent several acquisition modules of ONT are for the quantity of the maximum concurrent OMCI message of obtaining the ONT support;
The maximum concurrent several computing modules of OMCI passage are for the quantity of determining the maximum concurrent OMCI message that the OMCI passage is supported;
The maximum concurrent several judge modules of OLT are for the quantity of judging the maximum concurrent OMCI message that OLT supports;
Maximum concurrent several determination modules, be used for the quantity of the quantity of the maximum concurrent OMCI message supported according to described OLT, maximum concurrent OMCI message that described OMCI passage is supported and the quantity of the maximum concurrent OMCI message that described ONT supports, determine the maximum concurrent OMCI message number of current support between described OLT and the described ONT.
13. the transmitting device of OMCI message according to claim 12, it is characterized in that, when the concurrent OMCI message number that maximum concurrent OMCI message number that maximum concurrent OMCI message number that described OLT supports and described ONT the support minimum value between the two is supported less than the OMCI passage between described OLT and the ONT, the minimum value of the maximum concurrent OMCI message number that the maximum concurrent OMCI message number that the concurrent several determination modules of described maximum are supported described OLT and described ONT support between the two is defined as the quantity of the maximum concurrent OMCI message of current support between described OLT and the described ONT.
14. a passive optical network is characterized in that, comprises optical line terminal OLT and a plurality of Optical Network Terminal ONT, wherein said OLT is connected to described a plurality of ONT by Optical Distribution Network ODN with the form of putting multiple spot;
Wherein, described OLT is used for OMCI message to be sent is divided into groups, and makes that the OMCI message in the same grouping has dependence, the OMCI message no dependence between the different grouping; And, according to the quantity of the maximum concurrent OMCI message of current support between described OLT and the described ONT, from the described grouping that is in the non-state that awaits a response, obtain the OMCI information and sending and give described ONT;
Described ONT is used for receiving the OMCI message that described OLT sends, and returns and corresponding the receiveing the response of described OMCI message to described OLT.
15. passive optical network according to claim 14 is characterized in that, described OLT comprises as each described OMCI massage transmission device among the claim 8-13.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/074338 WO2011144043A2 (en) | 2011-05-19 | 2011-05-19 | Omci message transmission method, device and passive optical network system |
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| Publication Number | Publication Date |
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| CN102217328A CN102217328A (en) | 2011-10-12 |
| CN102217328B true CN102217328B (en) | 2013-07-10 |
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| CN201180000601.7A Expired - Fee Related CN102217328B (en) | 2011-05-19 | 2011-05-19 | OMCI message transmission method, device and passive optical network |
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| CN102497228A (en) * | 2011-12-08 | 2012-06-13 | 上海市共进通信技术有限公司 | Method for realizing dynamic multichannel OMCI (ONT (Optical Network Terminal) Management and Control Interface) information transmission between OLT (Optical Line Terminal) and ONU (Optical Network Unit) in PON (Passive Optical Network) system |
| CN102710999A (en) * | 2012-05-29 | 2012-10-03 | 南京邮电大学 | Method for transmitting and processing OMCI (ont management and control interface) messages in GPON (gigabit passive optical network) |
| CN110012367B (en) * | 2019-03-27 | 2021-10-19 | 烽火通信科技股份有限公司 | OMCI framing device and method for GPON OLT |
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| CN101060523B (en) * | 2006-04-26 | 2010-09-08 | 华为技术有限公司 | Optical network terminal, its port transmission rate limitation attribute configuration method and message processing method |
| CN101145843B (en) * | 2007-10-25 | 2012-03-07 | 中兴通讯股份有限公司 | A download method for Gbit passive optical network terminal software |
| CN101174909B (en) * | 2007-11-16 | 2010-08-18 | 华为技术有限公司 | Control method, equipment and system for passive optical network multicast access |
| CN101247310B (en) * | 2008-03-26 | 2011-05-25 | 中兴通讯股份有限公司 | Virtual local area network filtering configuration method and system |
| CN101854568B (en) * | 2010-06-03 | 2014-07-02 | 中兴通讯股份有限公司 | Processing method, device and system of user identity information in GPON (Gigabit-Capable PON) system |
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| WO2011144043A2 (en) | 2011-11-24 |
| CN102217328A (en) | 2011-10-12 |
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