CN104038252A - Fault detection method and apparatus for copper cable system - Google Patents
Fault detection method and apparatus for copper cable system Download PDFInfo
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- CN104038252A CN104038252A CN201310077063.2A CN201310077063A CN104038252A CN 104038252 A CN104038252 A CN 104038252A CN 201310077063 A CN201310077063 A CN 201310077063A CN 104038252 A CN104038252 A CN 104038252A
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Abstract
The invention discloses a copper cable aggregation node with a test function. The copper cable aggregation node apparatus comprises a copper cable test module, a copper cable service processing module and a time window control module. In order to ensure that the copper cable processing module can perform line quality testing and detecting while processing services, the copper test module and the copper cable service processing module cannot conflict during working time, and the work service working mode of the copper cable service module can employ a time division duplexing mode, for instance, the uplink-downlink data multiplexing mode employed by a G.FAST standard draft being discussed right now by the ITU-T is the time division duplexing mode. Since uplink and downlink time slices employed by the test module and services of copper cables cannot overlap, it is required that time slices used by a time management module for starting, testing and coordinating the copper cable service processing module and the copper cable test module cannot overlap or interfere with each other.
Description
Technical field
This patent belongs to the fault detection technique of the communications field, particularly copper cable fault detection method and device
Background of invention
The application modes such as Fiber to the home and Fiber To The Curb are Scaledeployment, the user of application mode that Fiber to the home now generally uses EPON (Passive Optical Network, PON) technology, can realize the bandwidth of multiple users share 1G or 2.5G bit, can be for alone family provides the bandwidth ability over 100M, still for the house of having built up.Because fiber entering household need to burrow through wallsly etc. separately, how to run into the difficult problem of registering one's residence, how to solve relevant issues and also just seem important.Telephone wire, as important copper cable resource, is can be for the medium of broadband access, and the existing technology of broadband access that provides on twisted pair telephone comprises ADSL2, and VDSL2 etc. can provide the access speed of tens to 100 MBPSs.But the access of PON may be not enough relatively.The whether very important resource of copper cable resource, so how to utilize existing copper cable resource and higher bandwidth is provided, realize the access of two-forty? ITU-T is carrying out the formulation of respective standard, present called after G.FAST standard, target is to provide unique user the bandwidth rates that is not less than 500M is provided.
The definition that G.fast present stage is rough data-reusing mode on a telephone wire, namely up-downgoing data are used identical frequency band, adopt time-multiplexed mode to carry out communication, the technology of this and ADSL/VDSL is different, the mode of the frequency division multiplexing of ADSL and VDSL utilization.
Copper cable circuit is generally comprised of multistage etc., there will be line quality to decline, fracture, the fault of water enchroachment (invasion) etc., maintenance for the ease of line fault, ITU-T has defined standard G.996.2 and has defined the relevant parameter that how to utilize test module to test copper cable, for fault location, as shown in Figure 1, the physical layer of data processing module and the physical layer of test module generally integrate, also can individualism, but be to be all connected on the copper cable being connected, test comprises two kinds of situations, a kind of is to have occurred fault, test, at this moment be to determine the type of fault and the position of fault generation etc., and when normal work, can not test, this is due to the phase mutual interference that prevents business and test signal, if whether have hidden danger so need to detect link, in test, service needed is interrupted, can bring the decline of customer service experience or the difficulty of Operation and Maintenance, for example need equal time section at dead of night to carry out dependence test.Another mode is switched to copper cable circuit on external testing instrument and tests exactly, realizes the fault location of circuit, and this needs the control that is communicated with between complicated each circuit of outside test macro and copper cable.
Summary of the invention
The invention provides a kind of method of carrying out line quality detection when normal work, copper cable test module and copper cable Service Processing Module are in same copper cable aggregation node, and when starting test, permission business is normally moved, and feature comprises:
1. support that the copper cable aggregation node of copper cable test function can distribute operating time window and the testing time window of copper cable Business Processing simultaneously
2. in test window, send test massage, and in window, receive test return information
Wherein, the working method of copper cable Business Processing is that up-downgoing data are time division multiplexing mode.
Wherein distribute the operating time window of copper cable Business Processing and the method for testing time window to comprise simultaneously:
One, copper cable aggregation node utilizes the mode of Dynamic Resource Allocation for Multimedia to determine operating time window and the testing time window of Business Processing, guarantees that two windows are not overlapping.
Two, the transmission that copper cable aggregation node is controlled data receives physical module, can be according to the operating time window of Business Processing and testing time windows exchange data receiver and transmission.
Wherein test signal is pulse signal, and for determining correlation properties and the fault of copper cable, fault comprises breakpoint, bridge joint etc.
Copper cable aggregation node can also be determined correlation properties and the fault of copper cable afterwards according to described test return information analysis, fault comprises breakpoint, bridge joint etc., or send to outside to be further processed correlation properties and the fault of rear definite copper cable, fault comprises breakpoint, bridge joint etc.
A kind of copper cable aggregation node with test function disclosed by the invention, comprises copper cable test module, copper cable Service Processing Module and time window control module, and its feature comprises:
1, the testing time window that copper cable test module is used and the operation window of copper cable business module Business Processing are not overlapping
2, copper cable test module sends test massage and receives the detecting information returning in testing time window
Wherein, the working method of the Business Processing of copper cable business module is that up-downgoing data are time division multiplexing mode.
The testing time window that wherein said copper cable test module is used and the operation window of copper cable business module Business Processing not method of superposition comprise:
One, copper cable aggregation node utilizes the mode of Dynamic Resource Allocation for Multimedia to determine operating time window and the testing time window of Business Processing, guarantees that two windows are not overlapping.
Two, the transmission that copper cable aggregation node is controlled data receives physical module, can be according to the operating time window of Business Processing and testing time windows exchange data receiver and transmission.
Wherein said test signal is pulse signal, and for determining correlation properties and the fault of copper cable, fault comprises breakpoint, bridge joint etc.
Copper cable aggregation node can also be determined correlation properties and the fault of copper cable afterwards according to described test return information analysis, fault comprises breakpoint, bridge joint etc., or send to outside to be further processed correlation properties and the fault of rear definite copper cable, fault comprises breakpoint, bridge joint etc.
Beneficial effect
Pass through this patent, can guarantee to carry out the detection of line quality in the process of service operation, thereby can carry out at any time copper cable quality to detect, and then can reduce the cost of O&M and improve the quality that customer service is experienced, also reduce and used the expensive of external testing equipment.
Accompanying drawing explanation
The acute node of remittance of the existing copper cable on-line testing of Fig. 1 function
The aggregation node implementation one of the on-line testing of divisional processing when Fig. 2 adopts
The aggregation node implementation two of the on-line testing of divisional processing when Fig. 3 adopts
Embodiment
A kind of copper cable aggregation node with test function disclosed by the invention, comprise copper cable test module, copper cable Service Processing Module and time window control module, in order to guarantee can to carry out Circuit Quality Test and detection at copper cable Service Processing Module when processing business, the operating time of copper cable test module and copper cable Service Processing Module can not be conflicted and be overlapping, so the working service working method of copper cable business module can adopt time division multiplexing mode (Time Division Duplexing), draft standard such as the G.FAST that ITU-T is discussing now, the multiplex mode of the up-downgoing data that it adopts is exactly time-multiplexed mode.The up-downgoing timeslice that the business of test module and copper cable is used can not be overlapping, this just need time window distribution module can start test coordinate timeslice that copper cable Service Processing Module and copper cable test module use can not overlapping and phase mutual interference.Feature of the present invention comprises:
1, the testing time window that copper cable test module is used and the operation window of copper cable Service Processing Module Business Processing are not overlapping
2, copper cable test module sends test massage and receives the detecting information returning in testing time window
Wherein, the working method of the Business Processing of copper cable Service Processing Module is that up-downgoing data are time division multiplexing mode.
The testing time window that wherein said copper cable test module is used and the operation window of copper cable business module Business Processing not method of superposition comprise:
One, as shown in Figure 2, the time window distribution module of copper cable aggregation node utilizes the mode of Dynamic Resource Allocation for Multimedia to determine operating time window and the testing time window of Business Processing, the data of controlling copper cable Service Processing Module and copper cable test module send and guarantee that two windows are not overlapping, and receive transmission physical layer, receive from controlling the data of copper cable Service Processing Module and copper cable test module, do not distinguish which kind of uniform service and process the corresponding signal of rear transmission to copper cable circuit.At this moment copper cable test module needs to control the test signal of physical layer transmission for testing before test, and when sending the data of copper cable Service Processing Module, need to control according to the requirement of business datum the modulation parameter of physical layer.
Two, as shown in Figure 3, the time window distribution module of copper cable aggregation node utilizes the mode of Dynamic Resource Allocation for Multimedia to determine operating time window and the testing time window of Business Processing, the data of controlling copper cable Service Processing Module and copper cable test module send and guarantee that two windows are not overlapping, reception transmission physical layer 1 receives and sends business datum signal, and receive 2 receptions of transmission physical layer, sends test massage.
Wherein said test signal comprises pulse signal or continuous signal, and for determining correlation properties and the fault of copper cable, fault comprises breakpoint, bridge joint etc.
The copper cable test module of copper cable aggregation node can also be determined correlation properties and the fault of copper cable afterwards according to described test return information analysis, fault comprises breakpoint, bridge joint etc., or send to outside to be further processed correlation properties and the fault of rear definite copper cable, fault comprises breakpoint, bridge joint etc.
When being also disclosed in normal work, the present invention carries out the method for line quality detection, provide the copper cable aggregation node of test function to comprise copper cable test module, copper cable Service Processing Module and time window control module, in order to guarantee can to carry out Circuit Quality Test and detection at copper cable Service Processing Module when processing business, the operating time of copper cable test module of the present invention and copper cable Service Processing Module can not conflict, so the working service working method of copper cable business module can adopt time division multiplexing mode (Time Division Duplexing), draft standard such as the G.FAST that ITU-T is discussing now, the multiplex mode of the up-downgoing data that it adopts is exactly time-multiplexed mode.The up-downgoing timeslice that the business of test module and copper cable is used can not be overlapping, this just need time window distribution module can start test coordinate timeslice that copper cable Service Processing Module and copper cable test module use can not overlapping and phase mutual interference.The feature of method of testing of the present invention comprises:
1. operating time window and the testing time window of the time window control module of copper cable aggregation node control copper cable Business Processing are not overlapping.
2. copper cable test module sends test massage and receives the detecting information returning in testing time window
Wherein, the working method of the Business Processing of copper cable Service Processing Module is that up-downgoing data are time division multiplexing mode.
The testing time window that wherein said copper cable test module is used and the operation window of copper cable business module Business Processing not method of superposition comprise:
One, as shown in Figure 2, the time window distribution module of copper cable aggregation node utilizes the mode of Dynamic Resource Allocation for Multimedia to determine operating time window and the testing time window of Business Processing, the data of controlling copper cable Service Processing Module and copper cable test module send and guarantee that two windows are not overlapping, and receive transmission physical layer, receive from controlling the data of copper cable Service Processing Module and copper cable test module, do not distinguish which kind of uniform service and process the corresponding signal of rear transmission to copper cable circuit.At this moment copper cable test module needs to control the test signal of physical layer transmission for testing before test, and when sending the data of copper cable Service Processing Module, need to control according to the requirement of business datum the modulation parameter of physical layer.
Two, as shown in Figure 3, the time window distribution module of copper cable aggregation node utilizes the mode of Dynamic Resource Allocation for Multimedia to determine operating time window and the testing time window of Business Processing, the data of controlling copper cable Service Processing Module and copper cable test module send and guarantee that two windows are not overlapping, reception transmission physical layer 1 receives and sends business datum signal, and receive 2 receptions of transmission physical layer, sends test massage.
Wherein said test signal comprises pulse signal or continuous signal, and for determining correlation properties and the fault of copper cable, fault comprises breakpoint, bridge joint etc.
The copper cable test module of copper cable aggregation node can also be determined correlation properties and the fault of copper cable afterwards according to described test return information analysis, fault comprises breakpoint, bridge joint etc., or send to outside to be further processed correlation properties and the fault of rear definite copper cable, fault comprises breakpoint, bridge joint etc.
These are only the preferred embodiments of the present invention; certainly; the present invention can also have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention corresponding change and distortion, but these corresponding changes and distortion all should belong to the protection range of appended claim of the present invention.
Claims (9)
1. a copper cable convergent node device with test function, comprises copper cable test module, copper cable Service Processing Module and time window control module, and its feature comprises:
The testing time window that copper cable test module is used and the operation window of copper cable business module Business Processing are not overlapping;
Copper cable test module sends test massage and receives the detecting information returning in testing time window.
2. as claimed in claim 1, the working method of the Business Processing of copper cable business module is that up-downgoing data are time division multiplexing mode.
3. the testing time window that as claimed in claim 1, copper cable test module is used and the operation window of copper cable business module Business Processing not method of superposition are that copper cable aggregation node utilizes the mode of Dynamic Resource Allocation for Multimedia to determine that the operating time window of Business Processing and testing time window and operating time window and testing time window are not overlapping.
4. as described in claim 1-3, the transmission that the testing time window that copper cable test module is used and the operation window time window distribution module that method of superposition is not copper cable aggregation node of copper cable business module Business Processing are controlled data receives physical module, can be according to the operating time window of Business Processing and testing time windows exchange data receiver and transmission.
5. a method of carrying out line quality detection when normal work, copper cable aggregation node comprises copper cable test module and copper cable Service Processing Module, and when starting test, business is normally moved, and feature comprises:
Support the copper cable aggregation node of copper cable test function can distribute operating time window and the testing time window of copper cable Business Processing simultaneously;
In test window, send test massage, and in window, receive test return information.
6. method as claimed in claim 5, the working method of copper cable Service Processing Module is that up-downgoing data are time division multiplexing mode.
7. method as claimed in claim 5, distribute the operating time window of copper cable Business Processing and the method for testing time window to comprise simultaneously:
One: the time control module of copper cable aggregation node utilizes the mode of Dynamic Resource Allocation for Multimedia to determine operating time window and the testing time window of Business Processing, guarantee that two windows are not overlapping.
Two: the transmission that the time control module of copper cable aggregation node is controlled data receives physical module, can be according to the operating time window of Business Processing and testing time windows exchange data receiver and transmission.
8. as described in claim 1 and 5, described test signal is pulse signal, and for determining correlation properties and the fault of copper cable, fault comprises breakpoint, bridge joint etc.
9. as described in claim 1-8, copper cable aggregation node can also be determined correlation properties and the fault of copper cable afterwards according to described test return information analysis, fault comprises breakpoint, bridge joint etc., or send to outside to be further processed correlation properties and the fault of rear definite copper cable, fault comprises breakpoint, bridge joint etc.
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| CN201310077063.2A CN104038252A (en) | 2013-03-10 | 2013-03-10 | Fault detection method and apparatus for copper cable system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086334A1 (en) * | 2014-12-01 | 2016-06-09 | 华为技术有限公司 | Message distribution method, apparatus and system in hybrid network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086334A1 (en) * | 2014-12-01 | 2016-06-09 | 华为技术有限公司 | Message distribution method, apparatus and system in hybrid network |
| CN106464514A (en) * | 2014-12-01 | 2017-02-22 | 华为技术有限公司 | Message distribution method, apparatus and system in hybrid network |
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Application publication date: 20140910 |