CN101425943A - Method for uplink QoS guarantee in G bit passive optical network system - Google Patents
Method for uplink QoS guarantee in G bit passive optical network system Download PDFInfo
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Abstract
The invention discloses a method for guaranteeing uplink business service quality in G bit passive optical network system. The method comprises: 1) configuring service priority and classification method of uplink service data stream in optical network units, and configuring corresponding scheduling mechanism, then configuring mapping relation between service data stream and GPON package port; 2) when optical receiving unit receives uplink service data stream, setting priority of uplink service data stream, classifying uplink service data stream according to set classification method, dispatching the classified data stream according to priority information based on the set dispatching mechanism, mapping the service data stream to corresponding GPON package port according to mapping relation between service data stream and GPON package port, entering into GPON T-CONT, transmitting to optical line terminal. The invention provides a method for guaranteeing uplink business service quality in GPON access technology.
Description
Technical field
The present invention relates to use the cable broadband access communication system of GPON (Gigabit Passive Optical Network, Gigabit Passive Optical Network) technology, relate in particular to the method that guarantees uplink QoS in a kind of GPON system.
Background technology
Broadband network develop rapidly recent years, various high bandwidths are professional and use continuous the appearance, make DSLAM (Digital Subscriber Line Access Multiplexer) dispose to trend towards disperse to move down, fully near the user, to improve more high bandwidth and higher-quality broadband inserting service.The fast development of optical fiber access technology, GPON, EPON (Ethernet Passive Optical Network, Ethernet passive optical network) etc. technology reaches its maturity, though in the long run, the light access technology possesses long distance symmetry advantage at a high speed, Fiber to the home (FTTH) is desirable broadband access method, but at present because aspects such as cost and demand temporarily are difficult to settle at one go complete instead of copper line technology.Therefore, concerning operator, making full use of and optimize existing copper cash resource, exploit potentialities to greatest extent, progressively realize " light advances copper and moves back " on the basis of suitably dropping into, is the main direction of development in a period of time from now on.In following a period of time, " xPON (x Passive Optical Network; various EPONs)+VDSL2 (Very highrate Digital Subscriber Line2, very high speed digital subscriber lines 2) " will become the principal mode that broadband access is used gradually.
The GPON technology is based on the comprehensive access technology of latest generation broadband passive light of ITU-TG.984.x standard, have numerous advantages such as high bandwidth, high efficiency, large coverage, user interface are abundant, be considered as the desirable technique that realizes that the Access Network business is broadband, synthesization is transformed by most of operators.GPON has following advantage: adopt GFP (Generic Framing Procedure, Generic Framing Procedure), various dissimilar to high level, after encapsulating, the business of different rates utilizes PON (Passive OpticalNetwork, EPON) transparent transmission, thereby support existing various voice and data service, comprise TDM (Time Division Multiplexing, time division multiplexing), PDH (PlesiochronousDigital Hierarchy, PDH (Pseudo-synchronous Digital Hierarchy)), SONET (Synchronous Optical Network, Synchronous Optical Network)/SDH (Synchronous Digital Hierarchy, synchronous digital hierarchy), (10/100Base-T (is a kind of local area network standard with the work of 10/100Mbps speed to Ethernet (Ethernet), it is commonly called Fast Ethernet)), ATM (Asynchronous Transfer Mode, asynchronous transfer mode), special line etc.; Network coverage is wide.The optical network unit physical distance can reach 20km farthest, and logical reach covers can reach 60km; Can support symmetry and asymmetric multiple line speed, maximum supporting rate can reach 2.5Gb/s, can satisfy the needs of the existing and following miscellaneous service that may occur to bandwidth; Owing to adopted the GFP Generic Framing Procedure to encapsulate, improved the efficient of data encapsulation, reach as high as 97%, thereby reduced cost relatively, help the promotion and application of system.
GPON is as a kind of emerging light access technology, and its technical characterictic and traditional access technology have a lot of differences.Its main difference is that the connection between optical line terminal and optical network unit is the encapsulation that the GPON packaged type that adopts carries out.All business data flows all will be encapsulated between optical line terminal and the optical network unit through this and transmit in this process.It is one of basic demand of all telecom operators at present that service quality guarantees.The service quality that how to guarantee traditional access service in the broadband cabled connecting system that has used the GPON technology is the problem that needs emphasis to solve.
Summary of the invention
The invention provides the method that guarantees uplink QoS in a kind of Gigabit Passive Optical Network system, to solve the problem that guarantees uplink QoS.
In order to solve the problems of the technologies described above, the invention provides the method that guarantees uplink QoS in the Gigabit Passive Optical Network system, comprise the steps:
(1) service priority of collocating uplink business data flow and sorting technique on optical network unit, and sorted data flow disposed corresponding scheduling mechanism, the mapping relations between configuration service data flow and the Gigabit Passive Optical Network encapsulation port then;
(2) when optical network unit receives the uplink business data stream that the user side transmission comes up, the service priority of uplink business data stream will be set, according to the described sorting technique of setting described uplink business data stream is classified, and the described scheduling mechanism that sorted data flow is set according to its precedence information utilization dispatched, business data flow is mapped to corresponding Gigabit Passive Optical Network encapsulation port according to business data flow of setting and the mapping relations between the Gigabit Passive Optical Network encapsulation port, enter Gigabit Passive Optical Network flow container, send to optical line terminal then.
The method of the invention, wherein, the method for described sorting technique for classifying according to the field that can identify described business data flow, described field comprises VLAN ID, the precedence field of the Ethernet field of described business data flow.
The method of the invention, wherein, described scheduling mechanism comprises strict priority scheduling, weight priority scheduling, weight equity dispatching.
The method of the invention wherein, is set the service priority that uplink business data flows by the classification of transaction module of optical network unit, according to the described sorting technique of setting described uplink business data stream is classified.
The method of the invention wherein, is dispatched by the described scheduling mechanism that the traffic management module of optical network unit is set according to its precedence information utilization sorted data flow.
The method of the invention wherein, is mapped to business data flow the Gigabit Passive Optical Network encapsulation port of correspondence according to business data flow of setting and the mapping relations between the Gigabit Passive Optical Network encapsulation port by the encapsulation adaptation module of optical network unit.
Further, realize service priority and customer service classification feature by the Configuration Manager of optical network unit to described classification of transaction module, finish the scheduling mechanism management function of described traffic management module, finish the business data flow of described encapsulation adaptation module and the mapping management function between the Gigabit Passive Optical Network encapsulation port.
Further, the Configuration Manager by described optical network unit passes through to receive webmaster or operator's configuration messages or the configuration in the input performing step (1).
The invention provides a kind of method that in the system that has used the GPON access technology, guarantees uplink QoS.
Description of drawings
Fig. 1 realizes the method for the invention, the modular structure schematic diagram of optical network unit for the embodiment of the invention;
Fig. 2 is an application example business data flow process flow schematic diagram of the present invention;
Fig. 3 guarantees the method flow diagram of uplink QoS for application example of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in detail.
As shown in Figure 1, realize the method for the invention, the modular structure schematic diagram of optical network unit for the embodiment of the invention.For up direction, optical network unit is as transmitter side, so scheme will be implemented on device of optical network unit, optical network unit comprises Configuration Manager, classification of transaction module, traffic management module, encapsulation adaptation module.The embodiment of the invention realizes the method for the invention, comprises the steps:
Step 101, the service priority of collocating uplink business data flow and sorting technique on optical network unit, and sorted data flow disposed corresponding scheduling mechanism, the mapping relations between configuration service data flow and the GPON encapsulation port then; The Configuration Manager of optical network unit is realized service priority and the customer service classification feature to described classification of transaction module, finish the scheduling mechanism management function of described traffic management module, finish the business data flow of described encapsulation adaptation module and the mapping management function between the GPON encapsulation port;
Step 102, when optical network unit receives the uplink business data stream that the user side transmission comes up, the classification of transaction module of optical network unit will be set the service priority of uplink business data stream, according to the described sorting technique of setting described uplink business data stream is classified, and dispatch by the described scheduling mechanism that the traffic management module of optical network unit is set according to its precedence information utilization sorted data flow, encapsulation adaptation module by optical network unit is mapped to corresponding GPON encapsulation port to business data flow according to business data flow of setting and the mapping relations between the GPON encapsulation port, enter GPON flow container, send to optical line terminal according to G-PON Encapsulation Mode then.
As shown in Figure 2, be application example business data flow process flow schematic diagram of the present invention.Optical network unit is made up of modules such as Configuration Manager shown in Figure 1, classification of transaction module, traffic management module, encapsulation adaptation module, Configuration Manager realize whole flow process relevant configuration control, show as configuration messages or the input of reception from webmaster or operator, again corresponding message or input are resolved to concrete enforcement control command, to realize that each module of control is to the processing mode control of data flow etc.The processing procedure of classification of transaction module, traffic management module, encapsulation adaptation module as shown in Figure 2, when flowing through each module, each module is finished the processing of business data flow according to the preset configuration of Configuration Manager at business data flow.
As shown in Figure 3, the method flow for application example assurance uplink QoS of the present invention comprises the steps:
Above-mentioned professional sorting technique is very flexibly, can according to the VLAN ID of the Ethernet field of business data flow, precedence field or other can the identification service data flow other fields classify.Dispatcher commonly used is shaped on strict priority scheduling, weight priority scheduling, weight equity dispatching or the like, and the weight of scheduling and method are subjected to the Configuration Manager default control.
The number of above-mentioned GPON flow container is more flexible, can be one or more.In adaptation procedure, sorted business data flow can shine upon according to the identical type of service of all users, also can shine upon according to the different user port.In Fig. 2, three kinds of business of user interface 1 can be mapped to three different GPON encapsulation port at last, enter GPON flow container 1, dispatch then and output to the GPON circuit, send to optical line terminal (customer traffic of user interface 2 is similar) according to G-PON Encapsulation Mode.Also can be mapped in the same GPON encapsulation port by different business data flows in actual applications.
Scheme of the present invention is not restricted to listed utilization in specification and the execution mode.Concerning the technology of the present invention those of ordinary skill in the field, can make various corresponding changes and distortion according to the present invention, and all these corresponding changes and distortion all belong to the protection range of claim of the present invention.
Claims (8)
1, guarantees the method for uplink QoS in the Gigabit Passive Optical Network system, it is characterized in that, comprise the steps:
(1) service priority of collocating uplink business data flow and sorting technique on optical network unit, and sorted data flow disposed corresponding scheduling mechanism, the mapping relations between configuration service data flow and the Gigabit Passive Optical Network encapsulation port then;
(2) when optical network unit receives the uplink business data stream that the user side transmission comes up, the service priority of uplink business data stream will be set, according to the described sorting technique of setting described uplink business data stream is classified, and the described scheduling mechanism that sorted data flow is set according to its precedence information utilization dispatched, business data flow is mapped to corresponding Gigabit Passive Optical Network encapsulation port according to business data flow of setting and the mapping relations between the Gigabit Passive Optical Network encapsulation port, enter Gigabit Passive Optical Network flow container, send to optical line terminal then.
2, method according to claim 1, it is characterized in that, the method of described sorting technique for classifying according to the field that can identify described business data flow, described field comprises VLAN ID, the precedence field of the Ethernet field of described business data flow.
3, method according to claim 1 is characterized in that described scheduling mechanism comprises strict priority scheduling, weight priority scheduling, weight equity dispatching.
4, method according to claim 1 is characterized in that, sets the service priority of uplink business data stream by the classification of transaction module of optical network unit, according to the described sorting technique of setting described uplink business data stream is classified.
5, method according to claim 1 is characterized in that, is dispatched by the described scheduling mechanism that the traffic management module of optical network unit is set according to its precedence information utilization sorted data flow.
6, method according to claim 1, it is characterized in that, business data flow is mapped to the Gigabit Passive Optical Network encapsulation port of correspondence according to business data flow of setting and the mapping relations between the Gigabit Passive Optical Network encapsulation port by the encapsulation adaptation module of optical network unit.
7, as method as described in the claim 5～6, it is characterized in that, realize service priority and customer service classification feature by the Configuration Manager of optical network unit to described classification of transaction module, finish the scheduling mechanism management function of described traffic management module, finish the business data flow of described encapsulation adaptation module and the mapping management function between the Gigabit Passive Optical Network encapsulation port.
8, as method as described in the claim 7, it is characterized in that, by the Configuration Manager of described optical network unit by receiving webmaster or operator configuration messages or the configuration in the input performing step (1).
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Cited By (7)
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| CN101873227A (en) * | 2010-06-21 | 2010-10-27 | 杭州开鼎科技有限公司 | Method for classifying data stream and classifier applied to EPON terminal system |
| WO2010145353A1 (en) * | 2009-09-23 | 2010-12-23 | 中兴通讯股份有限公司 | Method and system for dispatching upnlink messages based on gigabit passive optical network gpon |
| WO2011066772A1 (en) * | 2009-12-03 | 2011-06-09 | 中兴通讯股份有限公司 | Method and apparatus for configuring passive optical network service |
| WO2011150759A1 (en) * | 2010-09-13 | 2011-12-08 | 华为技术有限公司 | Method, apparatus and system for processing signal of pon network |
| CN102811159A (en) * | 2011-06-03 | 2012-12-05 | 中兴通讯股份有限公司 | Method and device for scheduling upstream service |
| WO2013181940A1 (en) * | 2012-06-06 | 2013-12-12 | 华为技术有限公司 | Method, device and system for scheduling data flow |
| CN103916301A (en) * | 2012-12-31 | 2014-07-09 | 上海贝尔股份有限公司 | Method and apparatus for distinguishing GPON traffic |
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| CN1297097C (en) * | 2003-04-09 | 2007-01-24 | 华为技术有限公司 | Method for raising data transmission performance when the network is congested |
| CN100412832C (en) * | 2003-09-02 | 2008-08-20 | 竺红卫 | Non-homogeneous multi media flow transmission regulation method based on priority regulation |
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| CN102026049B (en) * | 2009-09-23 | 2014-01-01 | 中兴通讯股份有限公司 | Method and system for dispatching uplink messages based on gigabit-capable passive optical network (GPON) |
| WO2010145353A1 (en) * | 2009-09-23 | 2010-12-23 | 中兴通讯股份有限公司 | Method and system for dispatching upnlink messages based on gigabit passive optical network gpon |
| CN102026049A (en) * | 2009-09-23 | 2011-04-20 | 中兴通讯股份有限公司 | Method and system for dispatching uplink messages based on gigabit-capable passive optical network (GPON) |
| EP2482515A1 (en) * | 2009-09-23 | 2012-08-01 | ZTE Corporation | Method and system for dispatching upnlink messages based on gigabit passive optical network gpon |
| EP2482515A4 (en) * | 2009-09-23 | 2013-12-04 | Zte Corp | Method and system for dispatching upnlink messages based on gigabit passive optical network gpon |
| US8886042B2 (en) | 2009-09-23 | 2014-11-11 | Zte Corporation | Method and system for scheduling uplink message based on gigabit-capable passive optical network (GPON) |
| WO2011066772A1 (en) * | 2009-12-03 | 2011-06-09 | 中兴通讯股份有限公司 | Method and apparatus for configuring passive optical network service |
| CN101873227A (en) * | 2010-06-21 | 2010-10-27 | 杭州开鼎科技有限公司 | Method for classifying data stream and classifier applied to EPON terminal system |
| WO2011150759A1 (en) * | 2010-09-13 | 2011-12-08 | 华为技术有限公司 | Method, apparatus and system for processing signal of pon network |
| CN102811159A (en) * | 2011-06-03 | 2012-12-05 | 中兴通讯股份有限公司 | Method and device for scheduling upstream service |
| CN103476062A (en) * | 2012-06-06 | 2013-12-25 | 华为技术有限公司 | Data flow scheduling method, equipment and system |
| WO2013181940A1 (en) * | 2012-06-06 | 2013-12-12 | 华为技术有限公司 | Method, device and system for scheduling data flow |
| US9479384B2 (en) | 2012-06-06 | 2016-10-25 | Huawei Technologies Co., Ltd. | Data stream scheduling method, device, and system |
| CN103916301A (en) * | 2012-12-31 | 2014-07-09 | 上海贝尔股份有限公司 | Method and apparatus for distinguishing GPON traffic |
| CN103916301B (en) * | 2012-12-31 | 2018-05-25 | 上海诺基亚贝尔股份有限公司 | The method and apparatus for distinguishing GPON business |
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| CN101425943B (en) | 2011-08-10 |
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