CN100396137C - A interface circuit turn-on detecting method and device - Google Patents
A interface circuit turn-on detecting method and device Download PDFInfo
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- CN100396137C CN100396137C CNB2005101001267A CN200510100126A CN100396137C CN 100396137 C CN100396137 C CN 100396137C CN B2005101001267 A CNB2005101001267 A CN B2005101001267A CN 200510100126 A CN200510100126 A CN 200510100126A CN 100396137 C CN100396137 C CN 100396137C
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000001514 detection method Methods 0.000 claims abstract description 111
- 238000012545 processing Methods 0.000 claims abstract description 28
- 238000012360 testing method Methods 0.000 claims description 46
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/14—Interfaces between hierarchically different network devices between access point controllers and backbone network device
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- Computer Networks & Wireless Communication (AREA)
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- Monitoring And Testing Of Exchanges (AREA)
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Abstract
The present invention relates to a method for detesting the conduction of an A interface circuit, which comprises the steps: the detection starting end of the A interface circuit indicates the detection responding end to cause the self loop of the A interface circuit to be detected at the detection responding end; the conformability of the receiving data and the transmitting data from the detection end to the communicated self loop A interface circuit are judged. If true, the conduction of the A interface circuit is judged and detected; else, the non-cunduction of the A interface circuit is judged and detected. The present invention also discloses a corresponding device for detecting the conduction of the A interface circuit, which comprises a function indicating device and a judgment processing device. The method for detecting the conduction of the A interface circuit of the present invention is realized by the mode that the self loop of the A interface circuit is caused at one end of the A interface circuit, and then the other end of the A interface circuit transmits data detecting signals to the A interface circuit to detect the signals. The detecting method can be automatically operated at definite time, or can be operated by maintenance personnel through command operation. Thus, the method for detecting the conduction of the A interface circuit of the present invention is operated simply, conveniently and quickly without need of engineering personnel to plug and unplug an E1 line or dial a phone. Thereby, the automation and the batch quantity of detecting the conduction of the A interface circuit is realized.
Description
Technical field
The present invention relates to the detection method and the device of the interface circuit of wireless communication system, relate in particular to the method and the device of the conduction detection of the A interface circuit in the communication system.
Background technology
The A interface is used to realize that the communication resource is to travelling carriage (Mobole Station, reasonable distribution MS) and mobile management.At the A interface, circuit domain mobile switching centre adopts the circuit and the base station controller of E1 line (or T1 line) to link, and is used to transmit time division multiplexing (Time Division Multiplex, voice signal TDM).A pair of (up-downgoing) E1 line (or T1 line) is divided into several slots, and each channel time slot is transmitted one road voice signal.In Signalling exchange, adopt cic circuit identification code (Circuit Identity Code, CIC) corresponding each time slot.
In mobile communication system project installation process, the problem of E1 line (or T1 line) connection error can appear.Though hardware line is physically connected, may exist many E1 lines (or T1 line) transmitting-receiving to connect chaotic phenomenon, also there is the inconsistent phenomenon in cic circuit identification code numbering two ends, this will cause problems such as calling out cross-talk, single-pass, no audio.
At present, whether normal for detecting the connection of A interface circuit, for example whether E1 circuit (or T1 line) is normal, and whether A interface circuit two ends (BSC end and MSC end) cic circuit identification code configuration is consistent, adopts following two kinds of methods usually:
A kind of method is plug E1 line (or T1 line) at one end, detect the alarm whether corresponding line is arranged at an other end simultaneously, if the E1 line (or T1 line) of alarm indication is corresponding with the opposite end E1 line (or T1 line) of plug, it is normal to show that then E1 line (or T1 line) connects, otherwise malunion is normal.
Another kind method is to call out and connect by Mobile Origination, and whether the detection of call conversation is normal then.If it is all normal to detect all cic circuit identification code conversations, show that then MSC and BSC both sides' cic circuit identification code configuration is no problem, E1 line (or T1 line) connects normal.
There is following shortcoming in above-mentioned prior art:
Adopt the time-consuming and effort of mode of the manual plug E1 line of first method (or T1 line); It is long that the mode that adopts second method to detect the A interface circuit by conversing then makes detection expend time in, and cic circuit identification code of every detection must be dialed phone No. one time, and for the more mobile switching centre of A interface circuit, the enforcement of this method is unrealistic.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of A interface circuit turn-on detecting method and device, with the automation and the mass of simple and efficient realization A interface circuit turn-on detection.
For solving the problems of the technologies described above, the invention provides a kind of A interface circuit turn-on detecting method, this method comprises:
The detection originating end indication of a.A interface circuit detects the responder A interface circuit that described detection responder is to be detected from ring;
B. judge whether transceive data is consistent on the A interface circuit that described detection originating end is communicated with to the ring certainly that detects responder, if consistent, then judges to detect the A interface circuit turn-on, otherwise, judge to detect the not conducting of A interface circuit.
Before carrying out described step b, detect on the described certainly A interface circuit that ring is communicated with whether receive data earlier, if receive, then carry out described step b, otherwise, judge to detect the not conducting of A interface circuit.
Wherein, step a specifically comprises:
The detection originating end of a1.A interface circuit sends the conduction detection Indication message to detecting responder, carries the cic circuit identification code of circuit to be detected in the described conduction detection Indication message;
The detection responder of a2. described A interface circuit is resolved the cic circuit identification code information of obtaining in the described conduction detection Indication message, and the A interface circuit with described cic circuit identification code correspondence is communicated with from ring then.
Alternatively, a plurality of cic circuit identification code information of the described a plurality of A interface circuit correspondences to be detected of portability in the described conduction detection information of step a1;
Step a2 is communicated with the A interface circuit of described a plurality of cic circuit identification code correspondences from ring.
Wherein, step b specifically comprises:
The detection originating end of A interface circuit sends data signal under test to the detection responder of ring connection certainly;
Whether the detection originating end of described A interface circuit detects the data signal under test of receiving consistent with the data signal under test of transmission, if consistent, then judge to detect the A interface circuit turn-on, otherwise, judge to detect the not conducting of A interface circuit.
Alternatively, described data signal under test is a voice signal.
In addition, the present invention also can comprise step c:
Described A interface circuit detects originating end and notifies the detection responder of this A interface circuit to finish the conduction detection process, and this detects responder the A interface circuit that detects is removed from ring.
Correspondingly, the present invention also provides a kind of A interface circuit turn-on checkout gear, and this device comprises:
The deixis device, the detection originating end indication that is used for the A interface circuit detects the responder A interface circuit that described detection responder is to be detected from ring;
The judgment processing device is used to judge whether transceive data is consistent on the A interface circuit that described detection originating end is communicated with to the ring certainly that detects responder, if consistent, then judges to detect the A interface circuit turn-on, otherwise, judge to detect the not conducting of A interface circuit.
Wherein, described deixis device comprises:
The indication dispensing device, the detection originating end that is used for the A interface circuit sends the conduction detection Indication message to detecting responder, carries the cic circuit identification code of circuit to be detected in the described conduction detection Indication message;
Indication response processing unit, the other end of described A interface circuit is resolved the cic circuit identification code information of obtaining in the described conduction detection Indication message, and the A interface circuit with described cic circuit identification code correspondence is communicated with from ring then.
Alternatively, described A interface circuit to be detected can be for a plurality of, carry a plurality of cic circuit identification code information of described a plurality of A interface circuit correspondence to be detected in the described conduction detection information that described indication dispensing device sends;
Described indication response processing unit is communicated with the A interface circuit of described a plurality of cic circuit identification code correspondences from ring.
Wherein, described judgment processing device comprises:
The data signal under test dispensing device, the detection originating end that is used for the A interface circuit sends data signal under test to the detection responder of ring connection certainly;
First detects processing unit, is used to judge on the described certainly A interface circuit that ring is communicated with whether receive data, and when detection does not receive data, judges to detect the not conducting of A interface circuit;
Second detects processing unit, and whether if the described first detection processing unit detects when receiving data, it is consistent with the data signal under test of transmission to continue to detect the data signal under test of receiving, if it is consistent, then judge to detect the A interface circuit turn-on, otherwise, judge to detect the not conducting of A interface circuit.
Alternatively, described data signal under test is a voice signal.
In addition, the present invention also can comprise conduction detection end process device, is used for described A interface circuit and detects the detection responder end conduction detection process that originating end is notified this A interface circuit, and notified detection responder removes the A interface circuit that detects from ring.
Compare existing A interface circuit turn-on detecting method, A interface circuit turn-on of the present invention detect by at an end of A interface circuit with the A interface circuit from ring, on the A interface circuit, send data detection signal by the other end of A interface circuit then and detect and can realize.This detection method can periodically be carried out automatically, also can initiate by command operation by the attendant, therefore, A interface circuit turn-on detecting method of the present invention is realized more simple and efficient, do not need engineering staff's plug E1 line or call, thereby realized automation and the mass that the A interface circuit turn-on detects.
Description of drawings
Fig. 1 is the flow chart of a kind of execution mode of A interface circuit turn-on detecting method of the present invention;
Fig. 2 is the signaling process figure of a kind of execution mode of A interface circuit turn-on detecting method of the present invention;
Fig. 3 is the schematic diagram of a kind of execution mode of A interface circuit turn-on checkout gear of the present invention.
Embodiment
Please in conjunction with the reference Figure 1 and Figure 2, Fig. 1 is the flow chart of a kind of execution mode of A interface circuit turn-on detecting method of the present invention, and Fig. 2 is the signaling process figure of a kind of execution mode of the described A interface circuit turn-on detecting method of the present invention of Fig. 1.
In the present embodiment, and the mobile switching centre of A interface circuit (Mobile Switch Center, MSC) end is as detecting originating end, and its other end is that (Base Station Controller is BSC) as detecting responder for base station controller.In step 11, the detection originating end MSC of A interface circuit sends the conduction detection Indication message to detecting responder BSC, carries the cic circuit identification code of circuit to be detected in this conduction detection Indication message; In step 12, the detection responder BSC of described A interface circuit resolves the cic circuit identification code information in the conduction detection Indication message that obtains, and A interface circuit that then will be corresponding with this cic circuit identification code is communicated with from ring.In step 13, the detection originating end MSC of A interface circuit sends data signal under test to the detection responder BSC of ring connection certainly, and wherein, this data signal under test can be voice signal or other signals.In step 14, owing to carried out ring certainly, this data signal under test can be back to MSC along the A interface circuit corresponding with this cic circuit identification code.In step 15, the detection originating end MSC of A interface circuit detects whether receive data signal under test.In step 16,, then can directly judge to detect the not conducting of A interface circuit if do not receive data signal under test; If received data signal under test, and this data signal under test of receiving is inconsistent with the data signal under test that is sent, and also can judge to detect the not conducting of A interface circuit.In step 17,, then judge to detect the A interface circuit turn-on if receive data signal under test and consistent with the data signal under test that is sent.At last, in step 18, the A interface circuit detects originating end MSC and notifies the detection responder BSC of this A interface circuit to finish the conduction detection process, and this detects responder BSC the A interface circuit that detects is removed from ring.
Be appreciated that
A interface circuit turn-on detecting method of the present invention also can carry out conduction detection to many A interface circuits, wherein, detect originating end and send conduction detection information, corresponding a plurality of cic circuit identification code information of carrying A interface circuit a plurality of to be detected to be detected in this conduction detection information to detecting responder; Detect A interface circuit that responder will this a plurality of cic circuit identification code correspondences from the ring connection.Then, the detection originating end of A interface circuit sends data signal under test to the detection responder of ring connection certainly respectively according to a plurality of cic circuit identification code information, and wherein, the data signal under test of each circuit is all inequality.At last, whether the data signal under test that is sent on the data signal under test that the detection originating end of A interface circuit detects each circuit respectively and this circuit is consistent, if consistent, then judges to detect this A interface circuit turn-on, otherwise, judge to detect this not conducting of A interface circuit.Like this, can realize automation and the mass that the A interface circuit turn-on detects.
In addition, the A interface circuit turn-on detecting method of the present invention execution that can circulate is to carry out conduction detection to many circuit seriatim.At this moment, in above-mentioned step 11, the detection originating end MSC of A interface circuit sends the conduction detection Indication message to detecting responder BSC, carries the cic circuit identification code to many circuit to be detected in this conduction detection Indication message; In above-mentioned step 12, the detection responder BSC of described A interface circuit resolves the cic circuit identification code information in the conduction detection Indication message obtain, will be communicated with from ring with the A interface circuit that wherein cic circuit identification code is corresponding then.In above-mentioned step 13, the detection originating end MSC of A interface circuit sends data signal under test to the detection responder BSC of ring connection certainly, and wherein, this data signal under test can be voice signal or other signals.In above-mentioned step 14, owing to carried out ring certainly, this data signal under test can be back to MSC along the A interface circuit corresponding with this cic circuit identification code.In above-mentioned step 15, the detection originating end MSC of A interface circuit detects whether receive data signal under test, if confiscate data signal under test, then directly judge and detect the not conducting of A interface circuit, if receive data detection signal, and consistent with the data signal under test that is sent, then judge to detect the A interface circuit turn-on; If inconsistent, then judge to detect the not conducting of A interface circuit with the data signal under test that is sent.Next, again another circuit to be detected is carried out same conduction detection according to above-mentioned steps.
A interface circuit turn-on detecting method of the present invention is not limited to above-mentioned execution mode, and it can also be held the BSC of A interface circuit as the detection originating end, and MSC is held as detecting responder, and testing process is identical with above-mentioned execution mode.
Please refer to shown in Figure 3ly, Fig. 3 is the schematic diagram of a kind of execution mode of A interface circuit turn-on checkout gear of the present invention.This A interface circuit has one and detects originating end and a relevant detection responder.A interface circuit turn-on checkout gear of the present invention comprises the deixis device and is arranged at the judgment processing device and the conduction detection end process device of this detection originating end one side.Wherein, the deixis device comprises the indication response processing unit that is arranged at the indication dispensing device that detects originating end one side and is arranged at detection responder one side.This indication dispensing device is used for sending the conduction detection Indication message to the indication response processing unit that detects responder, carries the cic circuit identification code of circuit to be detected in this conduction detection Indication message.The A interface circuit detects the indication response processing unit of responder and resolves the cic circuit identification code information of obtaining in the described conduction detection Indication message, and the A interface circuit with described cic circuit identification code correspondence is communicated with from ring then.
This judgment processing device comprises that data signal under test dispensing device, first detects processing unit and second and detects processing unit.Wherein, this data signal under test dispensing device is used for sending data signal under test to indication response processing unit, and described data signal under test can be voice signal, also can be other similar signal; Described first detects processing unit is used to judge on the described certainly A interface circuit that ring is communicated with whether receive data, and when detection does not receive data, judges to detect the not conducting of A interface circuit; Described second detects processing unit, detect when receiving data if described first detects processing unit, whether continue to detect the data signal under test of receiving consistent with the data signal under test of transmission, if it is consistent, then judge and detect the A interface circuit turn-on, otherwise, judge to detect the not conducting of A interface circuit.
The indication response processing unit that this conduction detection end process device is used to notify this A interface circuit to detect responder finishes the conduction detection process, and this indication response processing unit removes the A interface circuit that detects from ring.
A interface circuit turn-on detecting method of the present invention can be set sense cycle by programming, realizes thus regularly, automatically detects, and also can be initiated to detect by the detection originating end that activates the A interface circuit by the attendant.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1. an A interface circuit turn-on detecting method is characterized in that, this method comprises:
The detection originating end indication of a.A interface circuit detects the responder A interface circuit that described detection responder is to be detected from ring;
B. judge whether transceive data is consistent on the A interface circuit that described detection originating end is communicated with to the ring certainly that detects responder, if consistent, then judges to detect the A interface circuit turn-on, otherwise, judge to detect the not conducting of A interface circuit.
2. A interface circuit turn-on detecting method according to claim 1 is characterized in that, before carrying out described step b, detect on the described certainly A interface circuit that ring is communicated with whether receive data earlier,, then carry out described step b if receive, otherwise, directly judge to detect the not conducting of A interface circuit.
3. A interface circuit turn-on detecting method according to claim 1 is characterized in that step a specifically comprises:
The detection originating end of a1.A interface circuit sends the conduction detection Indication message to detecting responder, carries the cic circuit identification code of circuit to be detected in the described conduction detection Indication message;
The detection responder of a2. described A interface circuit is resolved the cic circuit identification code information of obtaining in the described conduction detection Indication message, and the A interface circuit with described cic circuit identification code correspondence is communicated with from ring then.
4. A interface circuit turn-on detecting method according to claim 3, it is characterized in that, described A interface circuit to be detected is a plurality of, carries a plurality of cic circuit identification code information of described a plurality of A interface circuit correspondence to be detected in the described conduction detection information of step a1;
Step a2 is communicated with the A interface circuit of described a plurality of cic circuit identification code correspondences from ring.
5. A interface circuit turn-on detecting method according to claim 1 is characterized in that step b specifically comprises:
The detection originating end of A interface circuit sends data signal under test to the detection responder of ring connection certainly;
Whether the detection originating end of described A interface circuit detects the data signal under test of receiving consistent with the data signal under test of transmission, if consistent, then judge to detect the A interface circuit turn-on, otherwise, judge to detect the not conducting of A interface circuit.
6. A interface circuit turn-on detecting method according to claim 5 is characterized in that, described data signal under test is a voice signal.
7. according to each described A interface circuit turn-on detecting method of claim 1-6, it is characterized in that, also comprise step c:
Described A interface circuit detects originating end and notifies the detection responder of this A interface circuit to finish the conduction detection process, and this detects responder the A interface circuit that detects is removed from ring.
8. an A interface circuit turn-on checkout gear is characterized in that, comprising:
The deixis device, the detection originating end indication that is used for the A interface circuit detects the responder A interface circuit that described detection responder is to be detected from ring;
The judgment processing device is used to judge whether transceive data is consistent on the A interface circuit that described detection originating end is communicated with to the ring certainly that detects responder, if consistent, then judges to detect the A interface circuit turn-on, otherwise, judge to detect the not conducting of A interface circuit.
9. A interface circuit turn-on checkout gear according to claim 8 is characterized in that, described deixis device comprises:
The indication dispensing device, the detection originating end that is used for the A interface circuit sends the conduction detection Indication message to detecting responder, carries the cic circuit identification code of circuit to be detected in the described conduction detection Indication message;
Indication response processing unit, the other end of described A interface circuit is resolved the cic circuit identification code information of obtaining in the described conduction detection Indication message, and the A interface circuit with described cic circuit identification code correspondence is communicated with from ring then.
10. A interface circuit turn-on checkout gear according to claim 9, it is characterized in that, described A interface circuit to be detected is a plurality of, carries a plurality of cic circuit identification code information of described a plurality of A interface circuit correspondence to be detected in the described conduction detection information that described indication dispensing device sends;
Described indication response processing unit is communicated with the A interface circuit of described a plurality of cic circuit identification code correspondences from ring.
11. A interface circuit turn-on checkout gear according to claim 8 is characterized in that, described judgment processing device comprises:
The data signal under test dispensing device, the detection originating end that is used for the A interface circuit sends data signal under test to the detection responder of ring connection certainly;
First detects processing unit, is used to judge on the described certainly A interface circuit that ring is communicated with whether receive data, and when detection did not receive data, directly judgement detected the not conducting of A interface circuit;
Second detects processing unit, and whether if the described first detection processing unit detects when receiving data, it is consistent with the data signal under test of transmission to continue to detect the data signal under test of receiving, if it is consistent, then judge to detect the A interface circuit turn-on, otherwise, judge to detect the not conducting of A interface circuit.
12. A interface circuit turn-on checkout gear according to claim 11 is characterized in that described data signal under test is a voice signal.
13. each described A interface circuit turn-on checkout gear according to Claim 8-12, it is characterized in that, also comprise conduction detection end process device, be used for described A interface circuit and detect the detection responder end conduction detection process that originating end is notified this A interface circuit, notified detection responder removes the A interface circuit that detects from ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101001267A CN100396137C (en) | 2005-09-28 | 2005-09-28 | A interface circuit turn-on detecting method and device |
| PCT/CN2006/002155 WO2007036126A1 (en) | 2005-09-28 | 2006-08-23 | Method and device for detecting a-interface circuit in mobile communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101001267A CN100396137C (en) | 2005-09-28 | 2005-09-28 | A interface circuit turn-on detecting method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1859688A CN1859688A (en) | 2006-11-08 |
| CN100396137C true CN100396137C (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101001267A Expired - Fee Related CN100396137C (en) | 2005-09-28 | 2005-09-28 | A interface circuit turn-on detecting method and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100396137C (en) |
| WO (1) | WO2007036126A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105577872A (en) * | 2014-10-17 | 2016-05-11 | 中兴通讯股份有限公司 | Voice chip detection method and device |
| CN111641184B (en) * | 2020-05-06 | 2022-04-08 | 国网辽宁省电力有限公司电力科学研究院 | Method for identifying self-loop of device and on-site device |
| CN114487760A (en) * | 2020-10-27 | 2022-05-13 | 神讯电脑(昆山)有限公司 | System and method for testing circuit board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257371A (en) * | 1999-11-01 | 2000-06-21 | 陈杰 | Four-line loop testing method and device for communication channel |
| US6154448A (en) * | 1997-06-20 | 2000-11-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Next hop loopback |
| JP2002171569A (en) * | 2000-12-04 | 2002-06-14 | Nec Corp | Digital mobile communication system and base station loopback communication method |
| CN1444410A (en) * | 2002-03-13 | 2003-09-24 | 华为技术有限公司 | Monitoring method of A interface circuit in wireless communication system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19831929C1 (en) * | 1998-07-16 | 1999-11-25 | Wandel & Goltermann Management | Test arrangement for continuous testing of the services in a GSM network overcomes certain problems, e.g. difficulty and considerable costs in time and materials of maintaining locally scattered SIMs in widespread network |
| US6452904B1 (en) * | 1999-01-15 | 2002-09-17 | Telefonaktiebolaget L M Ericsson (Publ) | Operation and maintenance flow support for A-interface connections |
-
2005
- 2005-09-28 CN CNB2005101001267A patent/CN100396137C/en not_active Expired - Fee Related
-
2006
- 2006-08-23 WO PCT/CN2006/002155 patent/WO2007036126A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6154448A (en) * | 1997-06-20 | 2000-11-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Next hop loopback |
| CN1257371A (en) * | 1999-11-01 | 2000-06-21 | 陈杰 | Four-line loop testing method and device for communication channel |
| JP2002171569A (en) * | 2000-12-04 | 2002-06-14 | Nec Corp | Digital mobile communication system and base station loopback communication method |
| CN1444410A (en) * | 2002-03-13 | 2003-09-24 | 华为技术有限公司 | Monitoring method of A interface circuit in wireless communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007036126A1 (en) | 2007-04-05 |
| CN1859688A (en) | 2006-11-08 |
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