CN1925347B - Method and device for rapid diagnosis of digital user wire disconnection - Google Patents
Method and device for rapid diagnosis of digital user wire disconnection Download PDFInfo
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Abstract
This invention provides one digital user off line rapid diagnose method, which comprises the following steps: recording off line preset interacting key information of xTU-C and xTU-R and analyzing off line reasons of key information. This invention also provides one digital user off line problem rapid diagnose device.
Description
Technical field
The present invention relates to the communications field, more specifically, relate to a kind of fast diagnosis method and device of digital user wire disconnection.
Background technology
XDSL (Digital Subscriber Line, Digital Subscriber Line is abbreviated as DSL, xDSL is meant various Digital Subscriber Line) be a kind of in twisted pair telephone (unshielded twisted pair, Unshielded Twist Pair, UTP) the high speed data transfer technology on.Through years of development, from ADSL (the Asymmetrical Digital Subscriber Line of the first generation, ADSL (Asymmetric Digital Subscriber Line)) develops into ADSL2 (the secondgeneration ADSL of the present second generation, the ADSL of the second generation), ADSL2+ (extend down streambandwidth ADSL2, the ADSL2 of downlink bandwidth expansion) and VDSL (the Very-high-bit-rate Digital Subscriber Line that upgrades, Very-high-speed Digital Subscriber Line) and VDSL2 (Very-high-bit-rate Digital Subscriber Line 2, second generation Very-high-speed Digital Subscriber Line).ADSL and VDSL are a kind of multicarrier system, and its adopts Discrete multi-tone modulation (Discrete Multi-TONE Modulation is abbreviated as DMT) mode, and frequency domain is divided into the subchannel of a plurality of non-overlapping copies, and each subchannel is appointed as the upstream or downstream transmission.The carrier wave of the corresponding different frequency of each subchannel carries out the QAM modulation respectively on different carrier waves.This division of frequency domain is greatly facilitated the design of DSL.
Except IDSL (ISDN DSL, the ISDN Digital Subscriber Line) and SHDSL (Symmetrical Highbit Digital SubscriberLine, the symmetry HDSL High-Speed Digital Subscriber Line) etc. outside the DSL of baseband transmission, the xDSL of passband transmission utilizes frequency multiplexing technique to make xDSL and POTS (Plain Old Telephone Service, Plain Old Telephone Service) coexists as with on a pair of twisted-pair feeder, wherein xDSL occupies high band, POTS takies the following baseband portion of 25KHz, and the POTS signal separates by separator with the xDSL signal.The xDSL of passband transmission adopts Discrete multi-tone modulation (DMT).The system that provides multichannel xDSL to insert is called DSLAM (DSL Access Multiplexer, DSL couple in multiplexer), and its system reference model as shown in Figure 1.
Fig. 1 shows the reference model according to the xDSL system 100 of correlation technique.
As shown in Figure 1, DSLAM 120 comprises user side Transmit-Receive Unit 122 and separates/integrator 124, at up direction, user side Transmit-Receive Unit 122 receives and carries out processing and amplifying from the DSL signal of computer 110 and to the signal of being received, the DSL signal after handling is sent to separation/integrator 124; Separation/integrator 124 will carry out integration processing from the DSL signal of local side Transmit-Receive Unit 122 and the POTS signal of telephone terminal 130; Signal after the integration is received by the separation/integrator among the DSLAM 150 of opposite end 152 by the transmission of the UTP 140 of multichannel; Separation/integrator 152 separates the signal that is received, POTS signal wherein is sent to public switched telephone network (Public SwitchedTelephone Network, be abbreviated as PSTN) 160, DSL signal wherein is sent to the Transmit-Receive Unit 154 of DSLAM 150, Transmit-Receive Unit 154 carries out the signal of being received being sent to network management system (Network ManagementSystem is abbreviated as NMS) 170 after the processing and amplifying again.At the down direction of signal, then signal is according to transmitting with above-mentioned opposite order.
Current xDSL has formed a standard bunch, comprise the various technical standards that different access rates, coverage and target application are provided, and in same standard, also have the appendix (annexes) that is provided with over against zones of different application requirements or spectrum requirement, see the following form 1.Wherein, ITU-T is meant International TelecommunicationUnion-Telecommunication Standardization sector, communication standard portion of International Telecommunications Union.
Table 1:ITU-T xDSL standard bunch and appendix thereof
The xDSL technical development is advanced by leaps and bounds, and uses the rise of ADSL2+ from ADSL, has only used four quinquenniads, and the technology maturation commercialization of VDSL2 also can realize at the beginning of the year ends 2006,2007 according to estimates.So the foreseeable future, the coexistence epoch of ADSL, ADSL2/2+ and VDSL2 can appear in online local side (Central Office is abbreviated as CO) equipment.Simultaneously, along with the extensive utilization of xDSL technology, global Digital Subscriber Line user number, also has increasing user and selects this access way along with the utilization of new technology in necessarily.In the face of huge like this user, and the multiple xDSL technology and the situation of depositing, how better maintaining network solves online problem apace, becomes the challenge that operator and network equipment vendor are faced for the user provides quality services.
Disconnection is the serious problems of puzzlement DSLAM equipment vendor and operator always, and is general relevant with factors such as parameter configuration, device difference, environment, all is to take place at random under a lot of situations, has very big uncertainty.And, also lack reasonable positioning means for disconnection at present, can only infer diagnosis to the reason that goes offline according to limited statistical information, this has strengthened the difficulty of positioning problems.
At present, DSLAM equipment can write down 24 hours and 30 days LOSS (Loss of Signal Second of arbitrary Digital Subscriber Line, dropout second), CRC (CyclicRedundancy Check Code, CRC) check errors number of times, LOFS (" Loss of Frame Second, Frame loss second); number of dropped calls records etc., these information can provide very important reference to the location disconnection.But, only not enough, also be difficult to judge the concrete reason that goes offline with these information.So, in case when having many disconnection to take place, can only according to the limited recorded information of DSLAM equipment, position by veteran engineer to the scene.
Disconnection has uncertainty, and prior art can't be obtained some important informations that go offline at that time, can only be by limited statistical information, rely on attendant's experience that the problem reason is judged, engineer's specification requirement to on-the-spot orientation problem is very high, sometimes also need special instrumentation to assist to analyze, increased difficulty and cost that operator and equipment supplier deal with problems.
Therefore, people need a kind of quick diagnosis solution of digital user wire disconnection, can solve the problem in the above-mentioned correlation technique.
Summary of the invention
The present invention aims to provide the fast diagnosis method and the device of digital user wire disconnection, be used for solving the problem of prior art broadband access network xDSL equipment disconnection diagnostic mode inefficiency, can allow the plant maintenance personnel effectively locate fast and solve disconnection, thereby simplification handling process, reduce workload and difficulty, save great amount of cost, improved efficient.
According to an aspect of the present invention, provide a kind of fast diagnosis method of digital user wire disconnection, may further comprise the steps: mutual key message between xTU-C before record goes offline in the scheduled time and the xTU-R; And the reason of analysis of key information to determine to go offline.
In above-mentioned fast diagnosis method, key message comprises at least a in interactive maintenance information and the dynamic change solicited message.
In above-mentioned fast diagnosis method, interactive maintenance information comprises following at least a: signal to noise ratio redundancy, signal attenuation, transmitting power, received power.
In above-mentioned fast diagnosis method, the dynamic change solicited message comprises following at least a: seamless rate self adaptation, bit exchange, power control request, dynamic rate adjustment.
In above-mentioned fast diagnosis method, record may further comprise the steps: set the scheduled time and set the time interval that will write down; Buffering area is set; Mutual key message between record xTU-C and the xTU-R in time interval, and the timestamp of key message is kept in the buffering area, and surpass simultaneously the key message of the scheduled time in the clear buffer, wherein, in recording process, when going offline, then the data in the buffering area are kept in the storage device.
In above-mentioned fast diagnosis method, buffering area is a ring data structure, and its size is relevant with the scheduled time.
In above-mentioned fast diagnosis method, determine that the reason that goes offline may further comprise the steps: make amendment at the particular message in the key message and construct test; And the reason of the result of analytical test to determine to go offline.
According to a further aspect in the invention, provide a kind of quick diagnosis device of digital user wire disconnection, having comprised: the key message logging modle is used to write down before going offline mutual key message between the xTU-C in the scheduled time and xTU-R; And analysis module, be used for the reason of analysis of key information to determine to go offline.
In above-mentioned quick diagnosis device, key message comprises at least a in interactive maintenance information and the dynamic change solicited message.
In above-mentioned quick diagnosis device, interactive maintenance information comprises following at least a: signal to noise ratio redundancy, signal attenuation, transmitting power, received power.
In above-mentioned quick diagnosis device, the dynamic change solicited message comprises following at least a: seamless rate self adaptation, bit exchange, power control request, dynamic rate adjustment.
In above-mentioned quick diagnosis device, the key message logging modle comprises: the time set module is used for the scheduled time and sets the time interval that will write down; Buffering area application module is used to be provided with buffering area; And logging modle, be used in time interval, writing down mutual key message between xTU-C and the xTU-R, and the timestamp of key message is kept in the buffering area, and surpass simultaneously the key message of the scheduled time in the clear buffer, wherein, in recording process, when going offline, then the data in the buffering area are kept in the storage device.
In above-mentioned quick diagnosis device, buffering area is a ring data structure, and its size is relevant with the scheduled time.
In above-mentioned quick diagnosis device, analysis module comprises: tentative module is used at the make amendment structure test of the particular message of key message; And the reason determination module, be used for the reason of result to determine to go offline of analytical test.
By technique scheme, the present invention has realized following technique effect:
Use technical scheme of the present invention, DSLAM equipment can write down arbitrary port in the mutual critical message of first few minutes xTU-C and xTU-R that goes offline, thereby the user can control the interface or network management interface obtains the details that at every turn go offline by DSLAM, and by operating in these recorded informations of separate diagnostic software analysis on the PC, locate disconnection fast and provide and solve suggestion, effectively solved digital user wire disconnection,, provided cost savings for office side and user provide convenience.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the reference model according to the xDSL system 100 of correlation technique;
Fig. 2 shows the flow chart according to the fast diagnosis method of digital user wire disconnection of the present invention;
Fig. 3 shows the block diagram according to the quick diagnosis device of digital user wire disconnection of the present invention; And
Fig. 4 shows the flow chart of fast diagnosis method according to an embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Disconnection generally can be grouped into two types: the one, and digital subscriber line transceiver detects continuous LOS (Loss of Signal, dropout), automatically the transceiver state is transferred to deexcitation (deactivation), continuous dropout is often because LOL (LossoF Link, link is lost), perhaps LPR (Loss of Power, power loss) causes; Also having a kind of is exactly that digital subscriber line transceiver detects continuous LOF (LOF), automatically transfer the transceiver state to deexcitation, cause the reason of LOF many, might be SNRM (Signal to Noise Ratio Margin, the signal to noise ratio redundancy) reduces, cause error code, perhaps rate dynamic adjustment such as bit exchange, SRA (Seamless Rate Adaptation, seamless rate self adaptation) supports the bad transfer of data step-out etc. that causes.
The result who goes offline and comprehensively cause by a series of reasons often, rule of thumb, xTU-C (Central Office xDSL Terminal Unit in the first few minutes that generally goes offline, xDSL local side unit) interactive messages has reference value most to the reason that judgement goes offline and between the xTU-R (Remote xDSL Terminal Unit, xDSL far-end unit).These information comprise periodic refreshing, mutual SATN (Signal Attenuation, signal attenuation), signal to noise ratio redundancy management information and bit swap request such as (SNR margin), dynamic requests such as seamless rate self adaptation, power control.These cause transceiver from activating the reason that (activation) state transfers deexcitation to often.
Based on above analysis, the present invention proposes a solution, by the record mutual key message between the xTU-C of first few minutes and the xTU-R that goes offline in a period of time interval at every turn, and these information are recorded on the DSLAM equipment.The user can control the interface or network management interface obtains these information records by DSLAM then, thus the reason that goes offline each time in the diagnosis during this period of time.
Further, on PC, can move corresponding analysis software, according to experience the information before going offline be analyzed, thereby provided concrete reason that at every turn goes offline and amending advice.
Fig. 2 shows the flow chart according to the fast diagnosis method of digital user wire disconnection of the present invention; Fig. 3 shows the block diagram according to the quick diagnosis device of digital user wire disconnection of the present invention.
As shown in Figure 2, fast diagnosis method according to the present invention may further comprise the steps:
Step S202, mutual key message between xTU-C before record goes offline in the scheduled time and the xTU-R;
Step S204 analyzes the reason of described key message to determine to go offline.
Alternatively, key message comprises at least a in interactive maintenance information and the dynamic change solicited message.
Alternatively, interactive maintenance information comprises following at least a: signal to noise ratio redundancy, signal attenuation, transmitting power, received power.
Alternatively, dynamic change solicited message comprises following at least a: seamless rate self adaptation, bit exchange, power control request, dynamic rate adjustment.
Alternatively, record may further comprise the steps: set the scheduled time and set the time interval that will write down; Buffering area is set; Mutual key message between record xTU-C and the xTU-R in time interval, and the timestamp of key message is kept in the buffering area, and surpass simultaneously the key message of the scheduled time in the clear buffer, wherein, in recording process, when going offline, then the data in the buffering area are kept in the storage device.
Alternatively, buffering area is a ring data structure, and its size is relevant with the scheduled time.
Alternatively, determine that the reason that goes offline may further comprise the steps: make amendment at the particular message in the key message and construct test; And the reason of the result of analytical test to determine to go offline.
From above description as can be seen, this method has solved the problem of broadband access network xDSL equipment disconnection diagnostic mode inefficiency in the prior art, can allow the plant maintenance personnel effectively locate fast and solve disconnection, thereby simplification handling process, reduce workload and difficulty, save great amount of cost, improved efficient.
As shown in Figure 3, quick diagnosis device 300 according to the present invention comprises:
Key message logging modle 302 is used to write down before going offline in a period of time interval mutual key message between the xTU-C in the scheduled time and xTU-R at every turn; And
Alternatively, key message comprises at least a in interactive maintenance information and the dynamic change solicited message.
Alternatively, interactive maintenance information comprises following at least a: signal to noise ratio redundancy, signal attenuation, transmitting power, received power.
Alternatively, dynamic change solicited message comprises following at least a: seamless rate self adaptation, bit exchange, power control request, dynamic rate adjustment.
Alternatively, key message logging modle 302 comprises: the time set module is used for the scheduled time and sets the time interval that will write down; Buffering area application module is used to be provided with buffering area; And logging modle, be used in time interval, writing down mutual key message between xTU-C and the xTU-R, and the timestamp of key message is kept in the buffering area, and surpass simultaneously the key message of the scheduled time in the clear buffer, wherein, in recording process, when going offline, then the data in the buffering area are kept in the storage device.
Alternatively, buffering area is a ring data structure, and its size is relevant with the scheduled time.
Alternatively, analysis module 304 comprises: the tentative module (not shown) is used at the make amendment structure test of the particular message of key message; And reason determination module (not shown), be used for the reason of result to determine to go offline of analytical test.
Below in conjunction with accompanying drawing exemplary embodiments of the present invention is described.Fig. 4 shows the flow chart of fast diagnosis method according to an embodiment of the invention.As shown in Figure 4, the present invention program's concrete steps are as follows:
Step S402 activates port p;
Step S404 sets the recording period of port p, and to write down go offline before the time span pt of interactive information between xTU-C and the xTU-R, be generally a few minutes;
Step S406, the preceding information time length pt that goes offline according to setting applies for corresponding buffer circle pm.
Step S408, opening entry is with key management OAM mutual between xTU-C and the xTU-R (Operation And Management, operation and management) message, and the timestamp of message is kept among the buffering area pm, and removes the message of overtime pt in this buffering area simultaneously.The content that OAM message mainly comprises is as shown in table 2:
Table 2: with the relevant crucial OAM information that goes offline
| Interactive maintenance information | The dynamic change solicited message |
| The signal to noise ratio redundancy | The seamless rate self adaptation |
| Signal attenuation | Bit exchange (Bit Swap) |
| Transmitting power | The power control request |
| Received power | DRR (Dynamic Rate Repartition, dynamic rate adjustment) |
Step S410 judges whether to go offline;
Step S412 if go offline, then is kept at the data among the buffering area pm in the storage pool;
Step S414 judges whether that arrive writing time;
Step S416, if also do not arrive, then repeated execution of steps S408 is to S414, continuing record, and message write buffering area, if go offline, repeating step S412 then;
Step S418 if the recording period of p port arrives, then stops record.
Step S420, the DSLAM maintenance customer obtains the preceding recorded information that goes offline from DSLAM control interface or network management interface, and runs on the analysis software package on the PC, and the record reason that at every turn goes offline is analyzed, and obtains concrete reason and solves suggestion.
From this embodiment as can be seen, the arbitrary port of the DSLAM equipment records mutual key message between first few minutes xTU-C and the xTU-R that goes offline is for the location reason that goes offline provides reference.And operate in the analysis software on the PC, can go out concrete reason according to the record analysis that goes offline, and provide suggestion.
As can be seen from the above description, the present invention has realized following technique effect:
Use technical scheme of the present invention, DSLAM equipment can write down arbitrary port in the mutual critical message of first few minutes xTU-C and xTU-R that goes offline, thereby the user can control the interface or network management interface obtains the details that at every turn go offline by DSLAM, and by operating in these recorded informations of separate diagnostic software analysis on the PC, locate disconnection fast and provide and solve suggestion, effectively solved digital user wire disconnection,, provided cost savings for office side and user provide convenience.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.Should be understood that the variation in these concrete enforcements is conspicuous for a person skilled in the art, do not break away from spiritual protection range of the present invention.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the fast diagnosis method of a digital user wire disconnection is characterized in that, may further comprise the steps:
Mutual key message between xTU-C before record goes offline in the scheduled time and the xTU-R; And
Analyze the reason of described key message to determine to go offline;
Wherein, record may further comprise the steps:
Set the described scheduled time and set the time interval that will write down;
Buffering area is set;
In described time interval, write down mutual key message between described xTU-C and the xTU-R, and the timestamp of key message is kept in the described buffering area, and remove the key message that surpasses the described scheduled time in the described buffering area simultaneously, wherein,
In recording process, when going offline, then the data in the described buffering area are kept in the storage device.
2. fast diagnosis method according to claim 1 is characterized in that, described key message comprises at least a in interactive maintenance information and the dynamic change solicited message.
3. fast diagnosis method according to claim 2 is characterized in that, described interactive maintenance information comprises following at least a: signal to noise ratio redundancy, signal attenuation, transmitting power, received power.
4. fast diagnosis method according to claim 2 is characterized in that, described dynamic change solicited message comprises following at least a: seamless rate self adaptation, bit exchange, power control request, dynamic rate adjustment.
5. fast diagnosis method according to claim 3 is characterized in that described buffering area is a ring data structure, and its size is relevant with the described scheduled time.
6. fast diagnosis method according to claim 1 is characterized in that, determines that the reason that goes offline may further comprise the steps:
At make amendment structure test of the particular message in the described key message; And
Analyze the reason of result to determine to go offline of described test.
7. the quick diagnosis device of a digital user wire disconnection is characterized in that, comprising:
The key message logging modle is used to write down before going offline mutual key message between the xTU-C in the scheduled time and xTU-R; And
Analysis module is used to analyze the reason of described key message to determine to go offline;
Wherein, described key message logging modle comprises:
The time set module is used for the described scheduled time and sets the time interval that will write down;
Buffering area application module is used to be provided with buffering area; And
Logging modle, be used in described time interval, writing down mutual key message between described xTU-C and the xTU-R, and the timestamp of key message is kept in the described buffering area, and remove the key message that surpasses the described scheduled time in the described buffering area simultaneously, wherein
In recording process, when going offline, then the data in the described buffering area are kept in the storage device.
8. quick diagnosis device according to claim 7 is characterized in that, described key message comprises at least a in interactive maintenance information and the dynamic change solicited message.
9. quick diagnosis device according to claim 8 is characterized in that, described interactive maintenance information comprises following at least a: signal to noise ratio redundancy, signal attenuation, transmitting power, received power.
10. quick diagnosis device according to claim 8 is characterized in that, described dynamic change solicited message comprises following at least a: seamless rate self adaptation, bit exchange, power control request, dynamic rate adjustment.
11. quick diagnosis device according to claim 7 is characterized in that described buffering area is a ring data structure, its size is relevant with the described scheduled time.
12. quick diagnosis device according to claim 7 is characterized in that, described analysis module comprises:
Tentative module is used at the make amendment structure test of the particular message of described key message; And
The reason determination module is used to analyze the reason of result to determine to go offline of described test.
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| CN2006101404328A CN1925347B (en) | 2006-09-30 | 2006-09-30 | Method and device for rapid diagnosis of digital user wire disconnection |
| PCT/CN2007/070793 WO2008037223A1 (en) | 2006-09-30 | 2007-09-26 | A method and apparatus for quickly diagnosing inter-communication problem of digital subscriber line transceivers |
| EP07816984A EP2066041A4 (en) | 2006-09-30 | 2007-09-26 | A method and apparatus for quickly diagnosing inter-communication problem of digital subscriber line transceivers |
| US12/413,897 US20090190644A1 (en) | 2006-09-30 | 2009-03-30 | Method and apparatus for quickly diagnosing inter-communication problem of digital subscriber line transceivers |
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| CN2006101404328A CN1925347B (en) | 2006-09-30 | 2006-09-30 | Method and device for rapid diagnosis of digital user wire disconnection |
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| CN1925347B true CN1925347B (en) | 2011-04-13 |
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| CN1909394A (en) * | 2006-08-11 | 2007-02-07 | 华为技术有限公司 | System and method for inter-communicating problem of diagnosing digital user wire transceiver |
| CN106330258A (en) * | 2015-06-15 | 2017-01-11 | 中兴通讯股份有限公司 | Processing method and device for digital subscriber line (DSL) |
| CN105207840B (en) * | 2015-08-18 | 2018-06-19 | 上海斐讯数据通信技术有限公司 | A kind of network terminal user goes offline frequency detecting system and method |
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| CN1625130A (en) * | 2003-12-04 | 2005-06-08 | 中兴通讯股份有限公司 | Testing method for nucleus plate of digital user inserting into module |
| CN1770709A (en) * | 2004-11-01 | 2006-05-10 | 中兴通讯股份有限公司 | ADSL fault diagnosis method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1625130A (en) * | 2003-12-04 | 2005-06-08 | 中兴通讯股份有限公司 | Testing method for nucleus plate of digital user inserting into module |
| CN1770709A (en) * | 2004-11-01 | 2006-05-10 | 中兴通讯股份有限公司 | ADSL fault diagnosis method |
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