CN101179816B - Fault detection method and device for base station system and base station system - Google Patents

Abstract

The present invention relates to a fault detection method and device for a base station system and the base station system, wherein the method includes: acquiring RSSI information from a baseband processing device; combining the reverse signal strength indicated in the acquired RSSI information with a preset lower limit Thresholds are compared; when the reverse signal strength is lower than the lower threshold, a device failure prompt signal is sent, indicating that a device failure has occurred in the transceiver in the base station system. The device includes: a preset module, a first acquisition module, a first comparison module and a first prompt module. The base station system includes the fault detection device of the present invention, which is connected with the base band processing device of the base station system. The present invention detects the device failure of the TRX by detecting the reverse signal strength indicated in the RSSI information, so that the system administrator can discover the failure of the base station system in time, so that it can be repaired in time and avoid further damage to the system performance. Influence.

Description

Fault detection method and device for base station system and base station system

technical field

The invention relates to a fault detection technology of a base station system, in particular to a fault detection method, a detection device and a base station system equipped with the detection device. the

Background technique

In a mobile communication system, as shown in FIG. 1 , an existing base station system mainly includes an antenna feeder device, a duplexer, a transceiver (hereinafter referred to as: TRX) and a baseband processing device. Wherein, in order to improve the receiving gain, the antenna feeder usually includes a main receiving antenna and a diversity receiving antenna; the baseband processing device includes a finger receiver. the

FIG. 1 is a schematic diagram of a reverse channel of an existing base station system. The reverse channel of the existing base station mainly includes: the main set receiving antenna and the diversity receiving antenna respectively receive signals from the mobile terminal to form the main set signal and the diversity signal; the main set signal and the diversity signal pass through the first main set cable respectively 11 and the first diversity cable 12 are transmitted to the duplexer; after duplex filtering by the duplexer, they are transmitted to the TRX through the second main cable 21 and the second diversity cable 22; after being processed by the TRX, they are transmitted to the TRX The three cables 30 are transmitted to the baseband processing device, and multiple branch receivers therein perform demodulation and generate baseband signals. the

The defect of the existing technology is that the existing base station system lacks a corresponding fault detection mechanism. If a cable or device in the system fails, it will not be repaired in time, resulting in the failure or partial failure of the reverse channel and destroying the system. Stability and anti-interference ability greatly reduce the receiving sensitivity and signal transmission rate of the base station system, shrink the reverse coverage, increase the difficulty of user access, and affect the communication quality. Moreover, due to the default fault detection mechanism, if a system fault occurs, it is often not discovered until the user complains, which seriously affects user satisfaction and service quality. the

Contents of the invention

The problem to be solved by the present invention is to provide a method and device capable of detecting faults of the base station system and the base station system, so that faults can be repaired in time and communication quality can be guaranteed. the

In order to solve the above problems, an embodiment of the present invention provides a fault detection method for a base station system, which includes:

Obtaining reverse signal strength indication information for indicating reverse signal strength from the baseband processing device;

comparing the reverse signal strength with a preset lower threshold;

When the reverse signal strength is lower than the lower threshold, prompting that a device failure has occurred in the transceiver in the base station system;

When the strength of the reverse signal is higher than the preset lower limit threshold, the information on the number of branch reports of the reverse signal is obtained from the baseband processing device;

Comparing the branch reporting times of the main set reverse signal and the diversity reverse signal in the branch reporting times information;

When the ratio of the number of branch reports between the main set reverse signal and the diversity reverse signal reaches a predetermined multiple, compare the reverse signal strength with a preset upper threshold; when the reverse signal strength is high When the upper threshold is at the upper threshold, it prompts that a cable connection fault has occurred in the cable through which the reverse signal with a lower number of branch reports passes; when the reverse signal strength is higher than the lower threshold and lower than the upper threshold , a device fault occurs in the transceiver in the base station system, and a cable connection fault occurs in the cable through which the reverse signal with a lower number of branch reports passes. the

In order to solve the above problems, another embodiment of the present invention provides a fault detection device of a base station system, which is connected with a baseband processing device of the base station system, including:

The preset module is used to preset the lower limit threshold;

The first acquisition module is used to acquire RSSI information from the baseband processing device;

The first comparison module is used to compare the reverse signal strength indicated in the RSSI information obtained by the first acquisition module with the lower limit threshold preset by the preset module to obtain the first comparison result;

The first prompting module is configured to, according to the first comparison result obtained by the first comparison module, when the strength of the reverse signal is lower than the lower threshold, prompting that a device failure has occurred in the transceiver in the base station system ;

An instruction module, configured to issue an acquisition instruction when the strength of the reverse signal is higher than the lower threshold preset by the preset module according to the first comparison result obtained by the first comparison module;

The second obtaining module is used to obtain the branch reporting frequency information of the reverse signal from the baseband processing device according to the obtaining instruction from the instruction module;

The second comparison module compares the number of branch reports of the main set reverse signal and the diversity reverse signal in the branch report times information obtained by the second acquisition module to obtain a second comparison result;

The second prompting module is used to, according to the second comparison result of the second comparison module, when the ratio of the branch reporting times of the main set reverse signal and the diversity reverse signal reaches a predetermined multiple preset by the preset module , indicating that a cable connection fault has occurred on the cable through which the reverse signal with a lower number of branch reports passes;

The third prompt module is used to, according to the first comparison result of the first comparison module and the second comparison result of the second comparison module, when the ratio of the number of branch reports between the main set reverse signal and the diversity reverse signal reaches When the preset multiple is preset by the preset module, if the reverse signal strength is higher than the upper threshold preset by the preset module, it will prompt that the cable that the reverse signal with a lower number of branch reports passes through has a line fault. Cable connection failure; if the reverse signal strength is higher than the lower threshold preset by the preset module and lower than the upper threshold preset by the preset module, it will prompt that the transceiver in the base station system has a device failure , and indicates that a cable connection fault has occurred on the cable through which the reverse signal with a lower number of branch reports passes. the

In order to solve the above problems, another embodiment of the present invention provides a base station system, including an antenna feeder, a duplexer, a transceiver and a baseband processing device, and the antenna feeder and the duplexer pass through a first main The set cable is connected with the first diversity cable; the duplexer and the transceiver are connected through the second main set cable and the second diversity cable; the transceiver and the baseband processing device are connected through the third line The cable is connected, which also includes: the fault detection device of the present invention is connected with the baseband processing device. the

Through the present invention, by detecting the reverse signal strength indicated in the RSSI information, the device failure of the TRX can be detected, so that the system administrator can find out the failure of the base station system in time, so that it can be repaired in time and avoid damage to the system. Further impact on performance,

Description of drawings

Figure 1 is a schematic diagram of a reverse channel of an existing base station system;

Fig. 2 is the flowchart of fault detection method described in the method embodiment 1 of the present invention;

Fig. 3 is the flowchart of fault detection method described in the method embodiment 2 of the present invention;

Fig. 4 is the flowchart of fault detection method described in the method embodiment 3 of the present invention;

Fig. 5 is the structural representation of the fault detection device described in device embodiment 1 of the present invention;

Fig. 6 is the structural representation of the fault detection device described in device embodiment 2 of the present invention;

Fig. 7 is a schematic structural diagram of the base station system according to the system embodiment of the present invention. the

Detailed ways

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. the

Embodiment 1 of the inventive method

This embodiment provides a fault detection method for a base station system, as shown in Figure 2, including:

Step 101, acquire reverse signal strength indication (Reverse Signal Strength Indication, hereinafter referred to as: RSSI) information for indicating reverse signal strength from the baseband processing device of the base station system. the

Wherein, the RSSI information is obtained by timing detection of the main set reverse signal and the diversity reverse signal by the TRX, and is reported to the baseband processing device by the TRX. The RSSI information is used to indicate the total power of the useful signal and other noise signals within the receiving bandwidth, so as to measure the noise floor of the wireless environment where the base station system is located. the

Step 102, comparing the reverse signal strength indicated in the acquired RSSI information with a preset lower threshold, and when the reverse signal strength is lower than the lower threshold, step 103 is executed. the

Step 103, when the strength of the reverse signal is lower than the lower threshold, a device failure prompt signal is sent, indicating that a device failure has occurred in the TRX in the base station system. the

Statistical analysis of a large amount of data shows that when the RSSI information is lower than a certain lower threshold, it indicates that the receiving part of the TRX board is damaged and a device failure occurs. the

Through the method described in this embodiment, by detecting the reverse signal strength indicated in the RSSI information, the device failure of TRX can be detected in time, so that it can be repaired in time, avoiding further impact on system performance, and improving user safety. satisfaction and service quality. the

Embodiment 2 of the inventive method

In the base station system, in addition to TRX prone to device failure, the main cable or diversity cable in the reverse signal transmission channel is also the main source of failure. In order to realize the detection of cable connection failure, this embodiment provides Another fault detection method for a base station system, as shown in Figure 3, includes:

Step 201, acquire RSSI information from a baseband processing device of a base station system. the

Step 202, comparing the reverse signal strength indicated in the acquired RSSI information with a preset lower threshold. Execute step 203 when the reverse signal strength is higher than the preset lower limit threshold,

In step 203, information on the number of branch reports of the reverse signal is obtained from the baseband processing device. the

Among them, the processing chip of the existing baseband processing device usually reports branch information periodically at intervals to notify which main set reverse signal or diversity reverse signal is contained in the reverse signal demodulated by this branch. Signal. The number of branch reporting times information indicates the number of times the baseband processing device reports the branch information of each reverse signal, that is, the number of times the main set reverse signal is connected to the baseband processing device through the main set reverse path, and the number of times the diversity reverse signal is connected to the baseband processing device. The number of times the baseband processing device is accessed through the diversity reverse path. the

Step 204: Compare the branch reporting times of the main set reverse signal and the diversity reverse signal in the acquired branch reporting times information. When the ratio of branch reporting times of the main set reverse signal and the diversity reverse signal reaches a predetermined multiple, step 205 is executed. the

Step 205, sending out a cable connection fault prompt signal, indicating that a cable connection fault has occurred on the cable passed by the reverse signal with a lower number of branch reports, for example, a fault caused by a wrong connection or a loose connection. the

Among them, if the reverse signal with a lower number of branch reports is the main set reverse signal, the cables that may cause cable connection failures include: the first main set cable connecting the antenna feeder device and the duplexer and the first main set cable connected to the duplexer. The second main collection cable of the duplexer and TRX; correspondingly, if the reverse signal with a lower number of branch reports is a diversity reverse signal, the cables that may cause cable connection failure include: connecting the antenna feeder device and The first diversity cable of the duplexer and the second diversity cable connecting the duplexer and the TRX. It should be noted here that since the third cable between the TRX and the baseband processing device is usually an optical cable rather than a radio frequency cable, and this section of optical cable does not distinguish between the main set signal and the diversity signal, its fault can be solved by the existing technology Other methods are used for detection, which will not be repeated here. the

In general, the distribution of mobile terminals satisfies random characteristics. Therefore, from a longer period of statistical data, the number of times that the reverse signal enters the branch receiver from the main set reverse path and the number of times that the diversity reverse path enters the branch receiver for processing should be equivalent in magnitude . That is to say, if the difference between the branch reporting times of the main set reverse signal and the diversity reverse signal is abnormal, such as when the ratio of the branch reporting times of the two reaches a predetermined multiple, then the reverse signal with a smaller number of branch reporting times passes through The reverse path is more likely to fail. the

Through the method described in this embodiment, the detection of cable connection faults is realized by detecting the number of times the reverse signal is reported, so that the system administrator can find out the cable connection faults in the base station system in time, so that they can be repaired in time. Further impact on system performance is avoided, and user satisfaction and service quality are improved. the

Embodiment 3 of the inventive method

This embodiment is further improved on the basis of method embodiment 2, as shown in Figure 4, including:

Steps 301-304 are similar to steps 201-204 described in Method Embodiment 2, and will not be repeated here. the

Step 305, after step 304 completes the comparison of the number of branch reports of the main set reverse signal and the diversity reverse signal, if the ratio of the number of branch reports of the two reaches a predetermined multiple, then further compare the strength of the reverse signal with the preset upper threshold for comparison. When the reverse signal strength is higher than the upper threshold, execute step 310; when the reverse signal strength is higher than the lower threshold and lower than the upper threshold, execute step 320. Wherein, the reverse signal strength includes the main set reverse signal strength and the diversity reverse signal strength. the

Step 310, sending out a cable connection failure prompt signal. the

Step 320, sending out a cable connection fault prompt signal and a device fault prompt signal. the

Wherein, according to existing statistical data, when the reverse signal strength is higher than the preset lower threshold and lower than the upper threshold, both cable connection failure and device failure may occur. This is because when the entire reverse channel is mainly composed of analog devices, there will still be a fuzzy zone while performing accurate detection, that is, when the reverse signal strength is higher than the lower threshold XdBm and lower than the upper threshold YdBm, where X is less than Y, if the ratio of the reporting times of the main set reverse signal and the diversity reverse signal is greater than N times, there may be a cable connection fault or a TRX device fault, so two fault prompt signals can be issued. the

In addition, since the cable connection failure is mainly caused by improper connection caused by human operation during the installation process, the possibility of failure is relatively high; while TRX has undergone strict tests before leaving the factory, compared with human operation The failure caused by TRX is less likely to fail. Therefore, step 321 can also be performed to send a cable connection fault priority prompt signal to prompt the user to eliminate the cable connection fault first. Improve troubleshooting efficiency. the

Through the method described in this embodiment, when the detection result is in the fuzzy area, two kinds of fault prompt signals are sent to the system maintenance personnel, which avoids the delay of fault maintenance caused by the inaccurate detection result, thereby further ensuring the safety of the system. Normal operation, improved service quality. the

Embodiment 1 of the device of the present invention

This embodiment provides a fault detection device for a base station system, which is connected to a baseband processing device in the base station system. As shown in FIG. 5 , the fault detection device 50 includes: a preset module 51 , a first acquisition module 52 , a first comparison module 53 and a first prompt module 54 . Its working principle is as follows:

Preset the lower limit threshold in the preset module 51; the first acquisition module 52 acquires the RSSI information from the baseband processing device; the first comparison module 53 compares the reverse signal strength indicated by the RSSI information acquired by the first acquisition module 52 with the The preset module 51 compares the preset lower limit threshold to obtain the first comparison result; the first prompt module 54 sends a device fault when the reverse signal strength is lower than the lower limit threshold according to the first comparison result obtained by the first comparison module 53 The prompt signal indicates that the TRX in the base station system has a device failure. the

Through the device described in this embodiment, the device failure of TRX can be detected by detecting the reverse signal strength indicated in the RSSI information, so that the system administrator can discover the failure of the base station system in time, so that it can be repaired in time , to avoid further impact on system performance, and improve user satisfaction and service quality. the

Embodiment 2 of the device of the present invention

As shown in FIG. 6 , this embodiment is substantially the same as the device embodiment 1. The fault detection device 60 includes: a preset module 601 , a first acquisition module 602 , a first comparison module 603 and a first prompt module 604 . The difference is that the upper limit threshold and the predetermined multiple can also be preset through the preset module 601, and the fault detection device 60 also includes: an instruction module 605, a second acquisition module 606, a second comparison module 607, a second prompt module 608, The third prompting module 609 and the fourth prompting module 610 . Its working principle is as follows:

On the basis of the work of each module described in the device embodiment 1, the instruction module 605 according to the first comparison result of the first comparison module 603, when the reverse signal strength is higher than the lower limit threshold preset by the preset module 601 , send an acquisition instruction to the second acquisition module 606; the second acquisition module 606 acquires the branch reporting times information of the reverse signal from the baseband processing device according to the acquisition instruction from the instruction module 605; the second comparison module 607 will be obtained by the second acquisition Module 606 compares the branch reporting times of the main set reverse signal and the diversity reverse signal in the branch reporting times information obtained by module 606 to obtain a second comparison result; the second prompt module 608 obtains the second As a result of the comparison, when the ratio of the number of branch reports between the main set reverse signal and the diversity reverse signal reaches a predetermined multiple, a cable connection fault prompt signal is sent to prompt the reverse signal with a lower branch report number A cable connection fault has occurred on the routed cable. the

In addition, the third prompting module 609 may also report when the branches of the main set reverse signal and the diversity reverse signal report the first comparison result of the first comparison module 603 and the second comparison result of the second comparison module 607 When the ratio of the number of times reaches a predetermined multiple, if the strength of the reverse signal is higher than the upper threshold, it indicates that a cable connection fault has occurred in the cable through which the reverse signal with a lower number of branch reports has occurred; if the reverse signal If the intensity is higher than the lower threshold and lower than the upper threshold, it indicates that the TRX in the base station system has a device failure, and indicates that a cable connection failure occurs in the cable through which the reverse signal with a lower number of branch reports passes. the

In addition, the fourth prompt module 610 can also add a cable connection fault priority prompt signal to the cable connection fault prompt signal and device fault prompt signal sent by the third prompt module 609, prompting the user to preferentially eliminate the cable connection fault. When the detection result is in the fuzzy area, by sending two fault prompt signals to the system maintenance personnel, the delay of fault maintenance caused by the inaccurate detection result is avoided, thereby further ensuring the normal operation of the system and improving the service quality . the

Through the device described in this embodiment, the detection of the cable connection fault is realized by detecting the number of times the reverse signal is reported, so that the system administrator can find the cable connection fault in the base station system in time, so as to be able to repair it in time, Avoiding further impact on system performance improves user satisfaction and service quality. the

Embodiment of the system of the present invention

This embodiment provides a base station system, as shown in FIG. 7 , including an antenna feeder, a duplexer, a TRX, and a baseband processing device. In addition, it also includes a fault detection device 70 as described above in each embodiment of the device of the present invention, which is connected with the baseband processing device. the

Wherein, the antenna feeder and the duplexer are connected through the first main cable 711 and the first diversity cable 712; the duplexer and the TRX are connected through the second main cable 721 and the second diversity cable 722; The TRX and the baseband processing device are connected through a third cable 730, specifically, the third cable 730 may be an optical cable. the

Through the system described in this embodiment, the detection of device faults and cable connection faults in the base station system is realized through the fault detection device, so that the system administrator can find faults in the base station system in time, so as to be able to repair them in time and avoid damage to the base station system. Further impact on system performance improves user satisfaction and service quality. the

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention. the

Claims (6)

1. the fault detection method of a base station system is characterized in that comprising:

From base band processing device, obtain the reverse signal intensity indication information that is used to indicate reverse signal intensity;

Described reverse signal intensity and the lower threshold of presetting are compared;

When described reverse signal intensity is lower than described lower threshold, point out the transceiver in the described base station system that device fault has taken place;

When described reverse signal intensity was higher than default lower threshold, the branch that obtains reverse signal from described base band processing device reported number of times information;

Report the main branch that collects reverse signal and diversity reverse signal in the number of times information to report number of times to compare described branch;

When the branch of described main collection reverse signal and diversity reverse signal reports the ratio of number of times to reach prearranged multiple, described reverse signal intensity and the upper limit threshold of presetting are compared; When described reverse signal intensity is higher than described upper limit threshold, prompting have low branch report number of times reverse signal the cable of process cable has taken place has connected fault; When described reverse signal intensity is higher than described lower threshold and is lower than described upper limit threshold, point out the transceiver in the described base station system that device fault has taken place, and prompting have low branch report number of times reverse signal the cable of process cable has taken place has connected fault.

2. the fault detection method of base station system according to claim 1, it is characterized in that device fault has taken place the transceiver in the described base station system of described prompting, and prompting have low branch report number of times reverse signal the cable of process cable has taken place has also comprised after connecting fault: the preferential cable of getting rid of of prompting connects fault.

3. the fault detection method of base station system according to claim 2, it is characterized in that described have low branch report number of times reverse signal the cable of process comprise: connect the first main line concentration cable or the first diversity cable of antenna feeder device and duplexer, and connect the second main line concentration cable or the second diversity cable of described duplexer and described transceiver.

4. the failure detector of a base station system is connected with the base band processing device of base station system, it is characterized in that comprising:

Presetting module is used for predetermined lower threshold value;

First acquisition module is used for obtaining reverse signal intensity indication information from described base band processing device;

First comparison module is used for the reverse signal intensity that the described reverse signal intensity indication information that is obtained by first acquisition module is indicated and is compared by the default lower threshold of presetting module, obtains first comparative result;

First reminding module is used for described first comparative result that obtains according to first comparison module, when described reverse signal intensity is lower than described lower threshold, points out the transceiver in the described base station system that device fault has taken place;

Instruction module is used for described first comparative result that obtains according to first comparison module, when described reverse signal intensity is higher than by the default lower threshold of presetting module, sends and obtains instruction;

Second acquisition module is used for reporting number of times information according to the instruction of obtaining that comes from instruction module from the branch that described base band processing device obtains reverse signal;

Second comparison module will be reported the main branch that collects reverse signal and diversity reverse signal in the number of times information to report number of times to compare by the described branch that second acquisition module obtains, and obtain second comparative result;

Second reminding module, be used for second comparative result according to second comparison module, when the branch of described main collection reverse signal and diversity reverse signal reports the ratio of number of times to reach by the default prearranged multiple of presetting module, prompting have low branch report number of times reverse signal the cable of process cable has taken place has connected fault;

The 3rd reminding module, be used for according to first comparative result of first comparison module and second comparative result of second comparison module, when the branch of described main collection reverse signal and diversity reverse signal reports the ratio of number of times to reach the prearranged multiple of being preset by presetting module, if described reverse signal intensity is higher than by the default upper limit threshold of presetting module, then prompting have low branch report number of times reverse signal the cable of process cable has taken place has connected fault; If described reverse signal intensity is higher than by the default lower threshold of presetting module, is lower than by the default upper limit threshold of presetting module, then point out the transceiver in the described base station system that device fault has taken place, and prompting have low branch report number of times reverse signal the cable of process cable has taken place has connected fault.

5. the failure detector of base station system according to claim 4 is characterized in that also comprising:

The 4th reminding module is used for the preferential cable connection fault of getting rid of of prompting when the 3rd reminding module prompting device fault has taken place is connected fault with cable.

6. a base station system comprises the antenna feeder device, duplexer, transceiver and base band processing device, and described antenna feeder device is connected with the first diversity cable by the first main line concentration cable with duplexer; Described duplexer is connected with the second diversity cable by the second main line concentration cable with transceiver; Described transceiver is connected by the 3rd cable with base band processing device, it is characterized in that also comprising: the arbitrary failure detector described in the claim 4～5 is connected with described base band processing device.

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