CN102315973B - Processing method for large-area station service break caused by transmission network fault and device - Google Patents
Processing method for large-area station service break caused by transmission network fault and device Download PDFInfo
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Abstract
The invention relates to a processing method for large-area station service break caused by transmission network fault and a device. A common-point object in transmission is analyzed according to a station service break base station, and the common-point fault is discovered. The processing method is characterized by comprising the following steps that: 1, station service break base station information is input to a transmission integrated network manager; 2, a large-area station service break processor in the transmission integrated network manager inquires a station service break base station circuit and a circuit router according to the station service break base station information; 3, the large-area station service break processor inquires the port warning at both ends of the circuit router; 4, the large-area station service break processor outputs the fault router of the base station according to the port warning; 5, the large-area station service break processor obtains the common-point fault router through analysis; and 6, the large-area station service break processor outputs base station objects influenced by the common-point fault router.
Description
Technical field
The present invention relates to transmission network and communication resource management technology, is processing method and device that a kind of transmission network fault causes the disconnected station of large area.Described method and apparatus is applied in transmission comprehensive network management, by the analysis for disconnected station base station circuitry route, and in conjunction with the fault point in transmission network, the disconnected station of large area that the fault that uses intelligent computational methods to calculate transmission concurrent causes.
Background technology
Wireless side is found the disconnected station of the large area of base station, can only seek help from transmission specialty in the situation that cannot processing.Transmit the information that professional people transmits according to wireless side, manually go to investigate the topology of transfer resource, transmission, the alarm of transmission, judge the place of transmission fault.Artificial judgement, artificial output, inefficiency.The existing technology of this respect: be exactly artificial technology judgement, lack the calculating of automation.
Along with the arriving of 3G (3G (Third Generation) Moblie) business, the fast development of the business of wireless side, transmission network requires more and more higher for the support of wireless traffic, O&M guarantee for transmission network is had higher requirement, in the disconnected station of wireless base station occurrence of large-area, how to locate fast fault point, solve fault recovery business.Based on this demand, how to design the processing method at the disconnected station of large area and the research of device that a kind of transmission network fault causes more and more urgent.
In the time that bed belongs to the disconnected station of large area that network failure causes, from the angle of management maintenance, the problem and blemish of existence, have following some: 1, the professional webmaster of wireless side, only possesses and finds that the ability at the disconnected station of large area has occurred wireless side.If not the disconnected station causing due to the fault in wireless specialty, the attendant of wireless side, can only seek help from other professional attendants.The mode of linking up: distribute work order to other professional attendants or circuit contact.Processing problem inefficiency is all to link up by artificial means.2, transmit the fault message that professional attendant submits to according to wireless side, first go to the base station of locating disconnected station with which transmission network element to be associated, by inquiring about the channel information on these transmission network elements, which transmission network element locating base station circuit has passed through.Go to check on these network element nodes whether have alarm to occur by alarm management, by the fault point of above method location transmission.This is only for a base station handling process.3, wireless, transmission does not have the interface of automation between specialty; Producer's webmaster does not possess the ability of automatic analysis calculating fault; Generally speaking, do not possess disconnected station failure automatic analysis, the ability of location transmission fault.
Summary of the invention
The present invention is directed to the defect or the deficiency that in prior art, exist, provide a kind of transmission network fault to cause processing method and the device at the disconnected station of large area.Described method and apparatus is applied in transmission comprehensive network management, by the analysis for disconnected station base station circuitry route, and in conjunction with the fault point in transmission network, the disconnected station of large area that the fault that uses intelligent computational methods to calculate transmission network concurrent causes.
Technical conceive of the present invention is according to the base station at disconnected station, to analyze the concurrent object in transmission network, the fault of discovery concurrent.
Technical scheme of the present invention is as follows:
Transmission network fault causes the processing method at the disconnected station of large area, it is characterized in that, comprises the following steps:
1. the disconnected station of input base station information is given transmission comprehensive network management;
2. transmit disconnected base station circuitry and the circuit route of standing of the disconnected station of the large area disconnected station of processing unit basis base station information inquiry in comprehensive network management;
3. the port alarm at processing unit enquiry circuit route two ends, the disconnected station of large area;
4. the disconnected station of large area processing unit is according to the fault route of port alarm outputting base station;
5. the processing unit analysis of the disconnected station of large area obtains concurrent fault route;
6. the base station object of the disconnected station of large area processing unit output concurrent fault route impact.
The disconnected station of described input base station information is given transmission comprehensive network management, comprise, wireless OMC (operation maintenance center, hereinafter to be referred as OMC) professional webmaster is when finding in certain region the disconnected station of occurrence of large-area, by and WEBSERVICE (network service, hereinafter to be referred as the WEBSERVICE) interface that defines between comprehensive network management of transmission, base station numbering, the base station title at the disconnected station of occurrence of large-area, base station affiliated area information, and the warning information at disconnected station sends to transmission comprehensive network management.
Described inquiry disconnected station base station circuitry and circuit route, comprise, according to the title of the numbering of base station, base station, extracts circuit and the circuit route data of base station circuitry from the database of transmission comprehensive network management.
The port alarm at described enquiry circuit route two ends, comprises, according to the port object (po) of circuit route process, checks whether these ports have the alarm of transmission to occur.
Describedly comprise according to the fault route of port alarm outputting base station, according to the resource information of all base station circuitry routes, in conjunction with warning information and location fault route, analyze the fault route of outputting base station.
Described analysis obtains concurrent fault route, comprises, draws concurrent fault route according to the fault route analysis of base station, and the information of concurrent fault route, feed back to wireless OMC, the information of described concurrent fault route comprises what the concurrent fault of transmission network is, and which the base station of impact has.
The base station object of described output concurrent fault route impact, comprises, the result of analyzing, feeds back to the application module that large area disconnected station association presents, the disconnected station of large area topology presents.
Described location fault route, adopt " funnel " algorithm, described " funnel " algorithm comprises the following steps: step 1: the base station title, the base station numbering that receive base station, disconnected station by WEBSERVIC interface transmission comprehensive network management, according to base station title and base station numbering, from database, filter out relevant base station circuitry data; Step 2: the initial conditions using the Output rusults of step 1 as step 2, from database, filter out the route of base station circuitry, the redundancy routing occurring in the circuit for this base station, only calculates once, sets up the route pond object of this base station; Step 3: whether the port of verifying all routes two ends in route pond has the alarm that transmission is relevant; According to the result of verifying, calculate the fault route pond object of this base station; Step 4: for the base station at each disconnected station, double counting step 2, to step 3, calculates the fault route pond of each base station, disconnected station; Step 5: using the result of calculation of step 4 as input, input the fault route pond of each base station, disconnected station, check the routing object in these fault route ponds, filter out the concurrent fault route of these base stations, disconnected station.
A kind of transmission network fault causes the processing unit at the disconnected station of large area, it is characterized in that, comprise the disconnected station of large area processing unit, the disconnected station of described large area processing unit is arranged in the data analysis layer of transmission comprehensive network management, and by database connection resource data processing module and alarm data processing module; The disconnected station of described large area processing unit connects the wireless OMC that is positioned at acquisition layer; Each entity management system connection resource data processing module and the alarm data processing module of acquisition layer; The disconnected station of described large area processing unit connects the disconnected station administration module of large area that is positioned at application presentation layer, and the disconnected station administration module of described large area comprises that the topology at the disconnected station of large area presents the associated module that presents at module and the disconnected station of large area.
Described acquisition layer gathers the Real-time Alarm information at disconnected station, base station from wireless OMC, by the disconnected station of message transmission notice large area processing unit; The disconnected station of described large area processing unit extracts resource data and the alarm data relevant to the disconnected station of large area from database; The disconnected station of described large area processing unit, by the analysis result at the disconnected station of large area, outputs to application presentation layer, and analysis result is fed back to wireless OMC.
Technique effect of the present invention is as follows:
Processing method and device that a kind of transmission network fault of the present invention causes the disconnected station of large area, utilized multi-disciplinary network management interface, realized sharing of information; Utilized " funnel " algorithm, the concepts such as route pond, have located the concurrent fault of transmitting simply.
The present invention shares by alarm resource, resource allocation between professional webmaster, the method and apparatus that utilizes the disconnected station of large area to process, locate fast and efficiently the transmission network fault point that causes the disconnected station of large area, realized computerized automatic analysis, improved the O&M ability of communication network.O&M personnel are discharged from the puzzlement of complex data analysis, promoted the productivity of mobile O&M.Crucial technology point has: broken away from artificial intervention, realized intelligentized analysis.
Accompanying drawing explanation
Fig. 1 is the transmission comprehensive network management structural representation that a kind of transmission network fault of enforcement the present invention causes the processing unit at the disconnected station of large area.
Fig. 2 is the flow chart of data processing figure that a kind of transmission network fault of enforcement the present invention causes the processing method at the disconnected station of large area.
Fig. 3 is " funnel " algorithm schematic diagram.
Embodiment
Below in conjunction with accompanying drawing (Fig. 1-Fig. 3), the present invention will be described.
Processing method and the device at the disconnected station of large area that transmission network fault causes, as a logic function module in transmission comprehensive network management.Main practical function comprises: analyze the concurrent object in transmission network according to the base station at disconnected station, find the fault of concurrent.
1, the disconnected station of large area processing method and the position of device in system: as a logic function module of the data analysis layer in transmission comprehensive network management, need to other module communications of acquisition layer, application layer, need to communicate by letter with database interface.This logic function module position in system, with reference to figure 1, Fig. 1 is transmission comprehensive network management structural representation or the system module structure chart that a kind of transmission network fault of enforcement the present invention causes the processing unit at the disconnected station of large area.A kind of transmission network fault causes the processing unit at the disconnected station of large area, it is characterized in that, comprise the disconnected station of large area processing unit, the disconnected station of described large area processing unit is arranged in the data analysis layer of transmission comprehensive network management, and by database connection resource data processing module and alarm data processing module; The disconnected station of described large area processing unit connects the wireless OMC that is positioned at acquisition layer; Each entity management system connection resource data processing module and the alarm data processing module of acquisition layer; The disconnected station of described large area processing unit connects the disconnected station administration module of large area that is positioned at application presentation layer, and the disconnected station administration module of described large area comprises that the topology at the disconnected station of large area presents the associated module that presents at module and the disconnected station of large area.Described acquisition layer gathers the Real-time Alarm information at disconnected station, base station from wireless OMC, by the disconnected station of message transmission notice large area processing unit; The disconnected station of described large area processing unit extracts resource data and the alarm data relevant to the disconnected station of large area from database; The disconnected station of described large area processing unit, by the analysis result at the disconnected station of large area, outputs to application presentation layer, and analysis result is fed back to wireless OMC.
The acquisition layer of transmission comprehensive network management gathers the Real-time Alarm information at disconnected station, base station from wireless OMC, by message transmission notice large area disconnected station processing method and device; The disconnected station of large area method and apparatus extracts relevant resource data, alarm data from the database of transmission comprehensive network management; The disconnected station of large area method and apparatus, the result of analyzing, outputs to the application layer of transmission comprehensive network management, and analysis result is fed back to wireless OMC.
2, the flow chart of data processing of the disconnected station of large area method and apparatus: the flow chart of data processing of the disconnected station of large area method and apparatus, with reference to figure 2, Fig. 2 is the flow chart of data processing figure that a kind of transmission network fault of enforcement the present invention causes the processing method at the disconnected station of large area.Transmission network fault causes the processing method at the disconnected station of large area, it is characterized in that, comprises the following steps: 1. the disconnected station of input base station information is given transmission comprehensive network management; 2. transmit disconnected base station circuitry and the circuit route of standing of the disconnected station of the large area disconnected station of processing unit basis base station information inquiry in comprehensive network management; 3. the port alarm at processing unit enquiry circuit route two ends, the disconnected station of large area; 4. the disconnected station of large area processing unit is according to the fault route of port alarm outputting base station; 5. the processing unit analysis of the disconnected station of large area obtains concurrent fault route; 6. the base station object of the disconnected station of large area processing unit output concurrent fault route impact.The disconnected station of described input base station information is given transmission comprehensive network management, comprise, when wireless OMC specialty webmaster finds that in certain region, occurrence of large-area is broken station, by and the WEBSERVICE interface that defines between comprehensive network management of transmission, base station numbering, the base station title at the disconnected station of occurrence of large-area, base station affiliated area information, and the warning information at disconnected station sends to transmission comprehensive network management.Described inquiry disconnected station base station circuitry and circuit route, comprise, according to the title of the numbering of base station, base station, extracts circuit and the circuit route data of base station circuitry from the database of transmission comprehensive network management.The port alarm at described enquiry circuit route two ends, comprises, according to the port object (po) of circuit route process, checks whether these ports have the alarm of transmission to occur.Describedly comprise according to the fault route of port alarm outputting base station, according to the resource information of all base station circuitry routes, in conjunction with warning information and location fault route, analyze the fault route of outputting base station.Described analysis obtains concurrent fault route, comprises, draws concurrent fault route according to the fault route analysis of base station, and the information of concurrent fault route, feed back to wireless OMC, the information of described concurrent fault route comprises what the concurrent fault of transmission network is, and which the base station of impact has.The base station object of described output concurrent fault route impact, comprises, the result of analyzing, feeds back to the application module that large area disconnected station association presents, the disconnected station of large area topology presents.Described location fault route, adopt " funnel " algorithm, described " funnel " algorithm comprises the following steps: step 1: the base station title, the base station numbering that receive base station, disconnected station by WEBSERVICE interface transmission comprehensive network management, according to base station title and base station numbering, from database, filter out relevant base station circuitry data; Step 2: the initial conditions using the Output rusults of step 1 as step 2, from database, filter out the route of base station circuitry, the redundancy routing occurring in the circuit for this base station, only calculates once, sets up the route pond object of this base station; Step 3: whether the port of verifying all routes two ends in route pond has the alarm that transmission is relevant; According to the result of verifying, calculate the fault route pond object of this base station; Step 4: for the base station at each disconnected station, double counting step 2, to step 3, calculates the fault route pond of each base station, disconnected station; Step 5: using the result of calculation of step 4 as input, input the fault route pond of each base station, disconnected station, check the routing object in these fault route ponds, filter out the concurrent fault route of these base stations, disconnected station.
Concrete step illustrates as follows:
The first step: when wireless OMC specialty webmaster finds that in certain region, occurrence of large-area is broken station, by and the WEBSERVICE interface that defines between comprehensive network management of transmission, base station numbering, the base station title at the disconnected station of occurrence of large-area, base station affiliated area information, and the warning information at disconnected station sends to transmission comprehensive network management; Second step: the disconnected station of large area processing method according to the title of the numbering of base station, base station, is extracted circuit and the circuit route data of base station circuitry with device from the database of transmission comprehensive network management; The 3rd step: the disconnected station of large area processing method according to the port object (po) of circuit route process, checks whether these ports have the alarm of transmission to occur with device; The 4th step: the disconnected station of large area processing method is with device according to the resource information of all base station circuitry routes, and in conjunction with warning information, location fault route, analyzes output concurrent fault route; The 5th step: the disconnected station of large area processing method the information of concurrent fault, feeds back to wireless OMC with device.What the concurrent fault of transmission network is, which the base station of impact has; The 6th step: the disconnected station of large area processing method a result of analyzing, feeds back to the application module that the disconnected station of large area associatedly presents, the disconnected station of large area topology presents with device.Wherein the 4th step is the core in whole flow chart of data processing, and detailed fault location algorithm refers to " algorithmic descriptions of the disconnected station of large area method and apparatus ".
The algorithmic descriptions of the disconnected station of large area method and apparatus: before setting forth the algorithm of the disconnected station of large area method and apparatus, first define two data models: the following circuit model of the first:
Base station title: the information of base station title; A Z end transmission network element: with the transmission network meta object of base station/BSC (base station controller, hereinafter to be referred as BSC) association; A Z holds transmit port: the transmission network element port being connected with base station/BSC service port.
It two is models of following circuit route:
In the method and apparatus of processing at the disconnected station of large area, we have adopted a kind of algorithm, are referred to as " funnel " algorithm, and as shown in Figure 3, Fig. 3 is " funnel " algorithm schematic diagram.
The step of algorithm: step 1: receive base station title, the base station numbering of base station, disconnected station by WEBSERVICE interface transmission comprehensive network management, according to base station title and base station numbering, filter out relevant base station circuitry data from database; Step 2: the initial conditions using the Output rusults of step 1 as step 2, from database, filter out the route of base station circuitry, the redundancy routing occurring in the circuit for this base station, only calculates once, sets up the route pond object of this base station; Step 3: whether verify the port at all routes two ends in route pond has the alarm that transmission is relevant, such as LOS (losing for new number) LOF (LOF) etc.; According to the result of verifying, calculate the fault route pond object of this base station; Step 4: for the base station at each disconnected station, double counting step 2-3, calculates the fault route pond of each base station, disconnected station; Step 5: (input the fault route pond of each base station, disconnected station) using the result of calculation of step 4 as input, check the routing object in these fault route ponds, filter out the concurrent fault route of these base stations, disconnected station.
Example 1:
Step 1: input: the disconnected station information of No. 1 base station, No. 2 base stations, No. 3 base stations, No. 4 base stations; Output: the circuit data (3) of the circuit data (3) of the circuit data (3) of the circuit data (3) of No. 1 base station, No. 2 base stations, No. 3 base stations, No. 4 base stations.
Step 2: input: the circuit of No. 1 base station; Output: the circuit route of No. 1 base station, the circuit route paragraph of No. 1 base station comprises: route segment 1, route segment 2, route segment 3, route segment 4, route segment 5, route segment 6, route segment 7, route segment 8, route segment 9, route segment A, route segment B, route segment C.
Step 3: input: the warning information of No. 1 base station circuitry route, routed port; Output: the fault route of No. 1 base station, the fault route segment of No. 1 base station: route segment 9, route segment C.
Step 4: No. 2 base stations of double counting, No. 3 base stations, No. 4 base stations, export the circuit route of these three base stations:
The circuit route paragraph of No. 2 base stations comprises: route segment 1, route segment 2, route segment 3, route segment 6, route segment 7, route segment 8, route segment 9, route segment A, route segment B, route segment C, route segment D;
The circuit route paragraph of No. 3 base stations comprises: route segment 4, route segment 5, route segment 6, route segment 7, route segment 8, route segment 9, route segment A, route segment B, route segment C, route segment E, route segment F, route segment G;
The circuit route paragraph of No. 4 base stations comprises: route segment 1, route segment 2, route segment 3, route segment 5, route segment 6, route segment 7, route segment 8, route segment 9, route segment E, route segment F, route segment G;
Output: No. 2 base station fault route segments: route segment 9.No. 3 base station fault route segments: route segment 5, route segment 9.No. 4 base station fault route segments: route segment 9.
Step 5: input: the fault route of No. 1 base station, No. 2 base stations, No. 3 base stations, No. 4 base stations; Output: the concurrent fault route segment of these four base stations.The concurrent fault route segment of No. 1 base station, No. 2 base stations, No. 3 base stations, No. 4 base stations: route segment 9.
Conclusion: the failure cause of route segment 9 causes No. 1 base station, No. 2 base stations, No. 3 base stations, No. 4 base stations to resolve station.
Indicate at this, above narration contributes to those skilled in the art to understand the invention, but and the protection range of unrestricted the invention.Any do not depart from the invention flesh and blood to being equal to replacement, modifying and improve and/or delete numerous conforming to the principle of simplicity and the enforcement carried out of above narration, all fall into the protection range of the invention.
Claims (9)
1. transmission network fault causes the processing method at the disconnected station of large area, it is characterized in that, comprises the following steps:
1. the disconnected station of input base station information is given transmission comprehensive network management;
2. transmit disconnected base station circuitry and the circuit route of standing of the disconnected station of the large area disconnected station of processing unit basis base station information inquiry in comprehensive network management;
3. the port alarm at processing unit enquiry circuit route two ends, the disconnected station of large area;
4. the disconnected station of large area processing unit is according to the fault route of port alarm outputting base station;
5. the processing unit analysis of the disconnected station of large area obtains concurrent fault route;
6. the base station object of the disconnected station of large area processing unit output concurrent fault route impact;
The base station object of described output concurrent fault route impact, comprises, the result of analyzing, feeds back to the associated application module presenting with the disconnected station of large area topology that presents in the disconnected station of large area.
2. transmission network fault according to claim 1 causes the processing method at the disconnected station of large area, it is characterized in that, the disconnected station of described input base station information is given transmission comprehensive network management, comprise, wireless OMC is that wireless operation maintenance center specialty webmaster finds that in certain region, occurrence of large-area is broken when station, by and the WEBSERVICE interface that defines between comprehensive network management of transmission, base station numbering, the base station title at the disconnected station of occurrence of large-area, base station affiliated area information, and the warning information at disconnected station sends to transmission comprehensive network management.
3. transmission network fault according to claim 1 causes the processing method at the disconnected station of large area, it is characterized in that, described inquiry disconnected station base station circuitry and circuit route, comprise, according to the title of the numbering of base station, base station, from the database of transmission comprehensive network management, extract circuit and the circuit route data of base station circuitry.
4. transmission network fault according to claim 1 causes the processing method at the disconnected station of large area, it is characterized in that, the port alarm at described enquiry circuit route two ends, comprises, according to the port object (po) of circuit route process, check whether these ports have the alarm of transmission to occur.
5. transmission network fault according to claim 1 causes the processing method at the disconnected station of large area, it is characterized in that, described according to the fault route of port alarm outputting base station, comprise, according to the resource information of all base station circuitry routes, in conjunction with warning information and location fault route, analyze the fault route of outputting base station.
6. transmission network fault according to claim 1 causes the processing method at the disconnected station of large area, it is characterized in that, described analysis obtains concurrent fault route, comprise, draw concurrent fault route according to the fault route analysis of base station, and the information of concurrent fault route, feeding back to wireless OMC is wireless operation maintenance center, the information of described concurrent fault route comprises what the concurrent fault of transmission network is, and which the base station of impact has.
7. transmission network fault according to claim 5 causes the processing method at the disconnected station of large area, it is characterized in that, described location fault route, adopt " funnel " algorithm, described " funnel " algorithm comprises the following steps: step 1: the base station title, the base station numbering that receive base station, disconnected station by WEBSERVICE interface transmission comprehensive network management, according to base station title and base station numbering, from database, filter out relevant base station circuitry data; Step 2: the initial conditions using the Output rusults of step 1 as step 2, from database, filter out the route of base station circuitry, the redundancy routing occurring in the circuit for this base station, only calculates once, sets up the route pond object of this base station; Step 3: whether the port of verifying all routes two ends in route pond has the alarm that transmission is relevant; According to the result of verifying, calculate the fault route pond object of this base station; Step 4: for the base station at each disconnected station, double counting step 2, to step 3, calculates the fault route pond of each base station, disconnected station; Step 5: using the result of calculation of step 4 as input, input the fault route pond of each base station, disconnected station, check the routing object in these fault route ponds, filter out the concurrent fault route of these base stations, disconnected station.
8. a transmission network fault causes the processing unit at the disconnected station of large area, it is characterized in that, comprise the disconnected station of large area processing unit, the disconnected station of described large area processing unit is arranged in the data analysis layer of transmission comprehensive network management, and by database connection resource data processing module and alarm data processing module; The wireless OMC that the processing unit connection of the disconnected station of described large area is positioned at acquisition layer is wireless operation maintenance center; Each entity management system connection resource data processing module and the alarm data processing module of acquisition layer; The disconnected station of described large area processing unit connects the disconnected station administration module of large area that is positioned at application presentation layer, and the disconnected station administration module of described large area comprises that the topology at the disconnected station of large area presents the associated module that presents at module and the disconnected station of large area.
9. transmission network fault according to claim 8 causes the processing unit at the disconnected station of large area, it is characterized in that, described acquisition layer is the Real-time Alarm information that wireless operation maintenance center gathers disconnected station, base station from wireless OMC, by the disconnected station of message transmission notice large area processing unit; The disconnected station of described large area processing unit extracts resource data and the alarm data relevant to the disconnected station of large area from database; The disconnected station of described large area processing unit, by the analysis result at the disconnected station of large area, outputs to application presentation layer, and analysis result is fed back to wireless OMC is wireless operation maintenance center.
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| CN106685736B (en) * | 2017-02-13 | 2019-07-23 | 中国联合网络通信集团有限公司 | Determine the method and device for the failure base station that association is broken down |
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| WO1999011032A2 (en) * | 1997-08-25 | 1999-03-04 | Nokia Networks Oy | Data transmission method and base station system |
| CN101166122A (en) * | 2006-10-18 | 2008-04-23 | 中兴通讯股份有限公司 | A method for locating network failure between communication terminals |
| CN102083114A (en) * | 2009-11-27 | 2011-06-01 | 中国移动通信集团北京有限公司 | Method and device for checking broken station service |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999011032A2 (en) * | 1997-08-25 | 1999-03-04 | Nokia Networks Oy | Data transmission method and base station system |
| CN101166122A (en) * | 2006-10-18 | 2008-04-23 | 中兴通讯股份有限公司 | A method for locating network failure between communication terminals |
| CN102083114A (en) * | 2009-11-27 | 2011-06-01 | 中国移动通信集团北京有限公司 | Method and device for checking broken station service |
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