CN103369586B - A kind of method and device for handling the interference of base station uplink outer - Google Patents

Abstract

The invention discloses a method and device for processing uplink external interference of a base station, wherein the method includes: an operation and maintenance center (OMC) sends an adjustment instruction to the base station; the base station uses the automatic gain control ( The attenuation value calculated by the AGC attenuation algorithm is calculated to obtain the attenuation value of the pre-attenuator, and the pre-attenuator is adjusted; the base station adjusts the detected current wideband received total power (RTWP) according to the received interference adjustment instruction ) values are subtracted and then reported to the OMC. By adopting the technical solution provided by the present invention, the rate and quality of the uplink data service of the base station can be quickly restored, and whether the signal received by the base station is an uplink mobile phone signal or an external interference signal can be distinguished to improve the efficiency of interference processing, thereby ensuring the data service processing performance of the base station and user experience.

Description

A method and device for dealing with base station uplink external interference

technical field

The present invention relates to the field of mobile communication, in particular to a method and device for processing base station uplink external interference.

Background technique

In the field of mobile communication, the quality of the uplink signal of the base station has a greater impact on the signal quality of the entire base station than the quality of the downlink signal has on the signal quality of the entire base station. One of the important factors of quality. When the uplink signal of the base station is severely interfered, the useful signal sent by the user terminal will be submerged by the interference noise, resulting in the inability of the base station to demodulate the uplink signal due to the inability to distinguish the useful signal from the interference noise, resulting in the uplink data transmission of the base station (UPA , Uplink PacketAccess) performance degradation, affecting user experience.

Currently, Code Division Multiple Access (CDMA, Code Division Multiple Access), High Speed Uplink Packet Access (HSUPA, High Speed Uplink Packet Access), and High Speed Downlink Packet Access (HSDPA, High Speed Downlink Packet Access) are used Technology and Long Term Evolution Frequency Division Duplexing (LTE-FDD, Long Term Evolution Frequency Division Duplexing) and other broadband mobile communication technology mobile communication systems, the method of dealing with the interference of the uplink signal of the base station is: the maintenance management personnel pass through the operation and maintenance center (OMC, Operations & Maintenance Center) detection and control software to detect whether the average received total wideband power (RTWP, Received Total Wideband Power) of each base station managed by the OMC is within the normal range -106dBm to -104dBm, if not within the normal range, then The maintenance management personnel will further judge whether the base station is subject to uplink external interference based on actual experience. When it is judged to be uplink external interference, the maintenance management personnel will use testing equipment to determine the external interference source, and deal with it according to the actual situation of the determined external interference source, or by The radio regulatory department of the government will handle it; when it is determined that it is non-uplink external interference, the maintenance management personnel will check the parameters of the wireless configuration of the base station, or check and test the internal antenna feeder part of the base station to determine the internal fault or internal interference source. The actual situation of the internal interference source in the system is used to deal with the interference.

However, with the application of software radio technology in mobile communications, it is very common for base station products of multiple standards and frequency bands to share the same set of antenna and feeder systems, and the types of external interference sources caused by this are also increasing. For example: passive intermodulation (PIM, Passive Inter-Modulation), active intermodulation of uplink repeater. As a result, it may be difficult to identify whether the RTWP abnormality in the base station is caused by external interference, and then, when using the above-mentioned method for processing the interference of the uplink signal of the base station, it will cause difficulties in locating and processing the external interference source, so it is difficult to improve Interference handling efficiency and timely resolution of service quality anomalies.

It can be seen that with the current mobile communication systems using broadband mobile communication technologies such as CDMA, HSUPA, HSDPA or LTE-FDD, there are more and more external interference sources and the situation is becoming more and more complicated, which makes it difficult to locate external interference sources in the uplink of the base station. increase, it is difficult to improve the efficiency of interference processing, which in turn affects the data service processing performance of the base station and affects user experience.

Contents of the invention

In view of this, the purpose of the present invention is to provide a method and device for processing uplink external interference of a base station, improve the efficiency of interference processing, and further ensure the data service processing performance of the base station and user experience.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

The present invention provides a method for processing base station uplink external interference, the method comprising:

The base station receives the interference adjustment instruction sent by the OMC; the base station calculates the attenuation value of the pre-attenuator according to the received interference adjustment instruction and the attenuation value calculated by itself using the automatic gain control (AGC, Automatic Gain Control) attenuation algorithm. Attenuation value, to adjust the pre-attenuator.

In the above solution, before the base station receives the interference adjustment instruction from the OMC, the method further includes: setting the attenuation value of the pre-attenuator of the base station in the detection control software of the OMC.

In the above scheme, the setting of the attenuation value of the pre-attenuator of the base station includes: selecting the base station in the setting interface provided by the detection control software, selecting the device to be adjusted as the pre-attenuator, and selecting the pre-attenuator for the selected Set the attenuation value of the pre-fader.

In the above solution, after the attenuation value of the pre-attenuator of the base station is set, the method further includes: the OMC selects the identification corresponding to the base station, uses the selected pre-attenuator as the device type, and sets The set attenuation value is written as a disturbance adjustment instruction.

In the above solution, the base station calculates the attenuation value of the pre-attenuator according to the received interference adjustment instruction and the attenuation value calculated by itself using the AGC attenuation algorithm, and adjusts the pre-attenuator, including: the The base station extracts the device type in the interference adjustment command, determines that the device to be adjusted is a pre-attenuator according to the device type, and then extracts the attenuation value in the interference adjustment command, and compares the attenuation value in the interference adjustment command with the attenuation value provided by the AGC attenuation algorithm. The attenuation value is added to obtain the attenuation value of the pre-attenuator, and the attenuation value of the pre-attenuator is used to adjust the pre-attenuator.

In the above solution, after the pre-attenuator is adjusted, the method further includes:

Check the RTWP value in the state parameter of the base station through the detection and control software of OMC, and judge whether the RTWP value returns to the normal range, if so, then check whether the uplink data transmission UPA rate of the base station is in the normal range, if the UPA If the rate is normal, it is determined that the influence of the interference of the base station on the uplink service has been eliminated; if the UPA rate is abnormal, it is determined that the interference of the uplink signal of the base station is non-external interference;

If the RTWP value does not return to the normal range, it is determined that the interference of the uplink signal of the base station is non-external interference.

In the above scheme, before the RTWP value in the state parameter of the base station is checked by the detection control software of the OMC, the method also includes: the base station detects its own current RTWP value in real time; when the base station receives the interference adjustment command sent by the OMC , use the attenuation value extracted from the interference adjustment command to perform offset subtraction on the current RTWP value detected by the base station, and report the corrected RTWP value to the base station's subsequent stage for processing; the base station's subsequent stage sends the corrected RTWP value to the OMC; The OMC sets the RTWP value of the corresponding base station in the detection control software according to the received corrected RTWP value.

The present invention also provides a device for processing base station uplink external interference, the device includes: a receiving module and an interference adjustment module; wherein,

a receiving module, configured to receive an interference adjustment instruction sent by the OMC;

The interference adjustment module is used to calculate the attenuation value of the pre-attenuator according to the interference adjustment instruction received by the receiving module and the attenuation value calculated by itself using the AGC attenuation algorithm, and adjust the pre-attenuator.

In the above solution, the device further includes: an attenuation setting module, configured to set the attenuation value of the pre-attenuator of the base station in the detection control software.

In the above scheme, the attenuation setting module is specifically used to select the base station in the setting interface provided by the detection control software, select the device to be adjusted as the pre-attenuator, and the attenuation of the selected pre-attenuator value to set.

In the above solution, the device also includes: an instruction sending module, used to write the corresponding identification of the base station selected in the attenuation setting module, the selected pre-attenuator as the device type, and the set attenuation value as interfering with regulation instructions;

Correspondingly, the attenuation setting module is further configured to provide the instruction sending module with the identification corresponding to the selected base station, the selected pre-attenuator as the device type, and the attenuation value.

In the above solution, the interference adjustment module further includes: an AGC submodule and an instruction receiving submodule;

The AGC submodule is used to calculate the attenuation value using the AGC attenuation algorithm, and send the calculated attenuation value to the command receiving submodule;

The instruction receiving sub-module is used to extract the device type in the interference adjustment instruction received by the receiving module, determine the device to be adjusted as a pre-attenuator according to the device type, and then extract the attenuation value in the interference adjustment instruction, and use the The attenuation value in the interference adjustment instruction is added to the attenuation value provided by the AGC attenuation algorithm to obtain the attenuation value of the pre-attenuator, and the attenuation value of the pre-attenuator is used to adjust the pre-attenuator.

In the above scheme, the device further includes: a state detection module, which is used to judge whether the RTWP value has returned to the normal range by detecting the RTWP value in the state parameters of the base station provided by the control software, and if so, judge the Whether the UPA rate of the base station is in the normal range, if the UPA rate is normal, then determine that the impact of the interference of the base station on the uplink service has been eliminated; if the UPA rate is not normal, then determine that the interference of the uplink signal of the base station is non-external Interference; if the RTWP value does not return to the normal range, it is determined that the interference of the uplink signal of the base station is non-external interference.

In the above solution, the device further includes: an RTWP detection and reporting module, which is used to detect the current RTWP value of the base station in real time, and performs offset subtraction on the detected current RTWP value when the receiving module receives the interference adjustment instruction The modified RTWP value obtained after that is reported to the base station for post-processing; the base station post-stage sends the corrected RTWP value to the state detection module;

Correspondingly, the state detection module is also used to send the attenuation value in the interference adjustment instruction to the RTWP detection and reporting module; set the corresponding base station in the detection control software according to the corrected RTWP value sent by the received RTWP detection and reporting module The RTWP value.

In the above solution, it is characterized in that the attenuation setting module, the instruction sending module and the state detection module are installed in the OMC, and the receiving module, the interference adjustment module and the RTWP detection and reporting module are installed in the base station.

The method and device for processing the uplink external interference of the base station provided by the present invention can enable the base station to adjust the pre-attenuator according to the interference adjustment command sent by the OMC. Set the attenuator to eliminate the interference caused by various uplink external interference sources, and improve the processing efficiency of uplink external interference. Furthermore, after eliminating the influence of the uplink external interference of the base station on the state parameters, if the state parameters corresponding to the base station are still not If it is normal, it can be determined that the interference occurring in the base station is a non-uplink external signal, so that the efficiency of interference processing can be improved, thereby ensuring the data service processing performance of the base station and user experience.

Description of drawings

FIG. 1 is a schematic flow chart of a method for processing base station uplink external interference according to the present invention;

Fig. 2 is a schematic diagram of the composition and structure of the device for processing uplink external interference of the base station according to the present invention.

Detailed ways

The basic idea of the present invention is: the base station receives the interference adjustment instruction sent by the OMC; the base station calculates the attenuation value of the pre-attenuator according to the received interference adjustment instruction and the attenuation value calculated by itself using the AGC attenuation algorithm , adjust the pre-attenuator; the base station subtracts the detected current RTWP value according to the received interference adjustment instruction, and then reports it to the OMC.

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

A method for processing base station uplink external interference provided by the present invention is shown in Figure 1, comprising the following steps:

Step 101: the base station receives the interference adjustment instruction sent by the OMC.

Here, the interference adjustment instruction is: written by OMC according to the identification corresponding to the base station selected in the setting interface provided by the detection control software, the selected pre-attenuator as the device type, and the set attenuation value; specifically The preparation method is the prior art, and will not be repeated here.

The OMC sending the interference adjustment instruction to the base station includes: first setting the attenuation value of the pre-attenuator of the base station in the detection control software of the OMC, and using the set attenuation value to write the interference adjustment instruction; and then sending the interference adjustment instruction to the base station .

Wherein, the attenuation value of the pre-attenuator of the base station is selected in the setting interface provided by the detection control software, the base station is selected, the device to be adjusted is selected as the pre-attenuator, and the selected pre-attenuator The attenuation value of the pre-attenuator is set; wherein, the attenuation value of the pre-attenuator is set according to the actual situation that the uplink signal of the base station is interfered, for example, it can be set to 3dBm to 15dBm;

Select the base station in the setting interface, select the device to be adjusted as the pre-attenuator, and set the attenuation value of the selected pre-attenuator as follows: add the corresponding option in the detection control software, which adds The method is an existing technology, and will not be described here, and may include items such as base station identification, device type, and attenuation value.

Before executing the above step 101, the average RTWP value corresponding to each base station managed by the OMC provided by the detection and control software of the OMC will be detected. When the average RTWP value of any base station exceeds the normal range, it is necessary to determine whether the base station has an external uplink interference, go to step 101;

The normal range may be between -106dBm and -104dBm; wherein, the detection control software is software provided by OMC for monitoring the operation of the base station under its management according to the provisions of the prior art, such as ASIG monitoring software; The method for detecting the status parameters of each base station by the detection control software is a prior art, and will not be repeated here. Wherein, the state parameter is the RTWP value and the UPA rate corresponding to each base station managed by the OMC provided by the detection control software of the OMC; the RTWP value and the UPA rate detection method and acquisition method are all prior art, and will not be done here repeat.

Step 102: The base station calculates the attenuation value of the pre-attenuator according to the received interference adjustment instruction and the attenuation value calculated by itself using the AGC attenuation algorithm, and adjusts the pre-attenuator.

Specifically, after receiving the interference adjustment instruction from the OMC, the base station extracts the device type in the interference adjustment instruction, determines the device to be adjusted as a pre-attenuator according to the device type, and then extracts the attenuation value in the interference adjustment instruction, according to The attenuation value of the pre-attenuator is calculated from the attenuation value in the interference adjustment instruction and the attenuation value provided by its own AGC attenuation algorithm, and the attenuation value of the pre-attenuator is used to adjust the pre-attenuator.

Here, the calculated attenuation value of the pre-attenuator is: the attenuation value calculated by the base station using the AGC attenuation algorithm is added to the attenuation value in the interference adjustment instruction as the attenuation value of the pre-attenuator; The AGC attenuation algorithm is an existing technology, and will not be described here;

The pre-attenuator is a program-controlled adjustable attenuator installed after the low noise amplifier (LNA, Low NoiseAmplifier) in the receiving chain of the base station; the method for installing the program-controlled adjustable attenuator, and the program-controlled adjustable attenuator according to the instruction The methods for adjusting are all existing technologies, and will not be repeated here; the specifications of the programmable adjustable attenuator can be the working frequency band supporting the third generation mobile communication technology (3G, 3rd-Generation), and the adjustment range is 0dB to 18dB.

In addition, after the above step 102 is completed, the base station will also detect its own current RTWP value in real time; when the base station receives the interference adjustment command sent by the OMC, it will use the attenuation value extracted from the interference adjustment command to adjust the current RTWP value detected by the base station. The corrected RTWP value obtained after offset subtraction is reported to the base station for post-processing; the post-base station sends the corrected RTWP value to the OMC; the OMC sets the RTWP value of the corresponding base station in the detection control software according to the received corrected RTWP value . The back stage of the base station is background processing programs such as UPA scheduling and OMC database of the base station, which is the prior art and will not be described here.

Further, it is also judged whether the state parameter of the base station provided in the OMC returns to normal, if still not normal, then determine that the interference of the base station is non-uplink external interference; if normal, then determine that the interference of the base station is uplink external interference, and the uplink external interference received by the base station has been eliminated.

specific:

Step a: The OMC provides the RTWP value through the detection and control software, and judges whether the RTWP value corresponding to the base station returns to the normal range. If it is normal, then perform step b; if it is not normal, determine that the interference of the base station is non-uplink external Interference, end processing flow.

Here, the determining that the interference of the base station is non-uplink external interference may be: an internal failure of the base station or an abnormal setting of wireless parameters, and the maintenance management personnel perform further detection according to the prior art.

Step b: check whether the UPA rate of the base station is in the normal range through the detection and control software of the OMC, if the UPA rate is normal, then determine that the interference of the base station is uplink external interference, and the uplink external interference received by the base station has been eliminated, and the process is ended Process; if the UPA rate is abnormal, go to step c.

Here, the UPA rate being within the normal range is judged according to actual experience, or judged according to the service acceptance index actually specified by the operator, for example, 1 Mbps or greater may be set as the normal range.

Step c: It is determined that the interference of the base station is non-uplink external interference, and the maintenance management personnel conduct further detection according to the existing technology.

Here, the determining that the interference of the base station is non-uplink external interference may be: an internal failure of the base station or an abnormal resource configuration, which is specifically determined by the maintenance manager according to the prior art.

The present invention proposes a device for processing base station uplink external interference, as shown in Figure 2, the device includes: a receiving module 21 and an interference adjustment module 22; wherein,

The receiving module 21 is configured to receive an interference adjustment instruction sent by the OMC;

The interference adjustment module 22 is configured to calculate the attenuation value of the pre-attenuator according to the interference adjustment instruction received by the receiving module 21 and the attenuation value calculated by itself using the AGC attenuation algorithm, and adjust the pre-attenuator.

The device also includes: a state detection module 23 for installing detection control software. When the average RTWP value of any base station in the detection control software exceeds the normal range, it is necessary to determine whether the base station has uplink external interference.

The state detection module 23 is also used to set the attenuation value of the pre-attenuator of the base station in the detection control software when it is necessary to judge whether the base station has uplink external interference.

The device also includes: an attenuation setting module 24, which is used to select the base station in the setting interface provided by the detection control software, select the device to be adjusted as the pre-attenuator, and the attenuation of the selected pre-attenuator value to set.

The device also includes: an instruction sending module 25, which is used to set the identification corresponding to the base station selected in the attenuation setting module 24, use the selected pre-attenuator as the device type, and write the set attenuation value as an interference adjustment Instruction; correspondingly, the attenuation setting module 24 is also configured to provide the instruction sending module 25 with the corresponding identification of the selected base station, the selected pre-attenuator as the device type, and the attenuation value.

The interference adjustment module 22 further includes: an AGC submodule 221 and an instruction receiving submodule 222;

The AGC submodule 221 is used to calculate the attenuation value using the AGC attenuation algorithm, and send the calculated attenuation value to the instruction receiving submodule 222;

The instruction receiving sub-module 222 is used to extract the device type in the interference adjustment instruction received by the receiving module 21, determine that the device to be adjusted is a pre-attenuator according to the device type, and then extract the attenuation value in the interference adjustment instruction, and use the The attenuation value in the interference adjustment instruction is added to the attenuation value provided by the AGC sub-module 221 to obtain the attenuation value of the pre-attenuator, and the attenuation value of the pre-attenuator is used to adjust the pre-attenuator.

The AGC sub-module 221 provides the AGC function provided by the base station in the prior art, and the implementation method will not be repeated here.

The device also includes: RTWP detection and reporting module 26, which is used to detect the current RTWP value of the base station in real time, and according to the attenuation value in the interference adjustment instruction received by the receiving module 21, use the attenuation value extracted from the interference adjustment instruction to adjust the base station The corrected RTWP value obtained after the offset subtraction of the detected current RTWP value is reported to the base station for post-processing; the post-base station sends the corrected RTWP value to the state detection module 23; correspondingly, the state detection module 23 also It is used to receive the corrected RTWP value sent by the RTWP detection and reporting module 26, and set the RTWP value of the corresponding base station in the detection control software according to the received corrected RTWP value.

The RTWP detection and reporting module 26 provides the function of the base station to detect the RTWP of its own antenna feeder system specified in the prior art, and the specific implementation method will not be repeated here.

The state detection module 23 is specifically used to analyze the state of the base station according to the state parameters provided by the detection control software after eliminating the external interference of the base station. If the RTWP value in the state parameters of the base station returns to the normal range, check the state of the base station. Whether the UPA rate in the state parameter of the base station is in the normal range. When the UPA rate is normal, it is determined that the influence of the base station on the uplink service has been eliminated. When the UPA rate is abnormal, it is determined that the interference of the uplink signal of the base station is non-external If the RTWP value does not return to the normal range, it is determined that the interference of the uplink signal of the base station is non-external interference, and the maintenance management personnel will perform further detection according to the existing technology. detection.

The attenuation setting module, instruction sending module and state detection module can be installed in the OMC of the mobile communication system as software, and the receiving module, interference adjustment module and the RTWP detection and reporting module are installed in the base station.

The following is the theoretical derivation of the use effect of the scheme provided by the present invention: the calculation of the noise floor RTWP value will consider the following five kinds of interference: Noise; ADC's own noise floor; external interference of the input signal at the antenna port; mobile phone service signal input at the antenna port; internal faults of the base station, such as leakage and intermodulation new interference generated inside the base station. After using the scheme provided by the present invention to deal with the uplink external interference of the base station, the thermal noise of the antenna port of the antenna feeder system of the base station is amplified to the noise at the input end of the analog-to-digital converter (ADC), the external interference of the input signal at the antenna port, and the mobile phone input at the antenna port. Service signals and internal faults of the base station (such as leakage and intermodulation new interference generated inside the base station) all change, and then quickly restore the rate and quality of the uplink data service of the base station, and distinguish whether the signal received by the base station is an uplink mobile phone signal or an external interference signal.

It can be seen that through the present invention, the base station can adjust the pre-attenuator according to the interference adjustment command sent by the OMC and the attenuation value provided by the AGC attenuation algorithm. In this way, the external interference sources can be directly adjusted without checking the external interference sources one by one. The device eliminates the uplink external interference brought by various external interference sources to the base station, and improves the efficiency of external interference processing; furthermore, by judging whether the state parameters corresponding to the base station are normal, it can be determined whether the interference occurring in the base station is external interference, which can improve Interference processing efficiency, thereby ensuring the data service processing performance of the base station and user experience. Furthermore, the attenuation of the signal received by the base station by the pre-attenuator can attenuate external interference, making it easier for the base station to extract the uplink mobile phone signal sent by the terminal from the received signal. According to the existing technology, the terminal that sends the uplink signal is controlled to increase the transmission power, so that the uplink mobile phone signal received by the base station can be more easily distinguished from external interference.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (16)

1. A method for processing base station uplink external interference, characterized in that the method comprises: The base station receives the interference adjustment instruction sent by the operation and maintenance center OMC; the base station calculates the attenuation value of the pre-attenuator according to the received interference adjustment instruction and the attenuation value calculated by itself using the automatic gain control AGC attenuation algorithm, Adjust the pre-fader; Check the broadband receiving total power RTWP value in the state parameters of the base station through the detection and control software of the OMC, and judge whether the RTWP value returns to the normal range, and if so, check whether the UPA rate of the uplink data transmission of the base station is normal range, if the UPA rate is normal, it is determined that the impact of the interference of the base station on the uplink service has been eliminated; if the UPA rate is abnormal, it is determined that the interference of the uplink interference signal that occurs at the base station is non-external interference; If the RTWP value does not return to the normal range, it is determined that the interference of the uplink signal of the base station is non-external interference. 2. The method according to claim 1, wherein, before the base station receives the interference adjustment instruction from the OMC, the method further comprises: setting the attenuation value of the pre-attenuator of the base station in the detection control software of the OMC . 3. The method according to claim 2, wherein the setting of the attenuation value of the pre-attenuator of the base station includes: selecting the base station in the setting interface provided by the detection control software, and selecting the attenuation value to be adjusted. The device is a pre-attenuator, which sets the attenuation value of the selected pre-attenuator. 4. The method according to claim 2 or 3, wherein after the attenuation value of the pre-attenuator of the base station is set, the method further comprises: the OMC selects the corresponding identification of the base station, Write the selected pre-attenuator as the device type and the set attenuation value as the interference adjustment command. 5. The method according to claim 1, wherein the base station calculates the attenuation value of the pre-attenuator according to the received interference adjustment instruction and the attenuation value calculated by itself using the AGC attenuation algorithm. Adjusting the pre-attenuator includes: the base station extracts the device type in the interference adjustment instruction, determines the device to be adjusted as the pre-attenuator according to the device type, and then extracts the attenuation value in the interference adjustment instruction, and adjusts the interference The attenuation value in the instruction is added to the attenuation value provided by the AGC attenuation algorithm to obtain the attenuation value of the pre-attenuator, and the attenuation value of the pre-attenuator is used to adjust the pre-attenuator. 6. The method according to claim 1, characterized in that, before the RTWP value in the state parameters of the base station is checked by the OMC detection control software, the method also includes: the base station detects its own current RTWP value in real time; When the base station receives the interference adjustment command sent by the OMC, it uses the attenuation value extracted from the interference adjustment command to perform offset subtraction on the current RTWP value detected by the base station. The corrected RTWP value is reported to the base station for subsequent processing; the base station The subsequent stage sends the corrected RTWP value to the OMC; the OMC sets the RTWP value of the corresponding base station in the detection control software according to the received corrected RTWP value. 7. A device for processing base station uplink external interference, characterized in that the device comprises: a receiving module, an interference adjustment module and a state detection module; wherein, a receiving module, configured to receive an interference adjustment instruction sent by the OMC; The interference adjustment module is used to calculate the attenuation value of the pre-attenuator according to the interference adjustment instruction received by the receiving module and the attenuation value calculated by itself using the AGC attenuation algorithm, and adjust the pre-attenuator; The state detection module is used to judge whether the RTWP value returns to the normal range by detecting the RTWP value in the state parameter of the base station provided by the control software, and if so, judge whether the UPA rate of the base station is in the normal range, If the UPA rate is normal, it is determined that the impact of the base station’s interference on the uplink service has been eliminated; if the UPA rate is abnormal, then it is determined that the interference of the uplink signal of the base station is non-external interference; if the RTWP value does not return to the normal range , it is determined that the interference of the uplink signal occurring at the base station is non-external interference. 8. The device according to claim 7, further comprising: an attenuation setting module, configured to set the attenuation value of the pre-attenuator of the base station in the detection control software. 9. The device according to claim 8, wherein the attenuation setting module is specifically used to select the base station and select the device to be adjusted as the pre-attenuator in the setting interface provided by the detection control software , Set the attenuation value of the selected pre-fader. 10. The device according to claim 7, characterized in that the device further comprises: an instruction sending module, which is used to set the identification corresponding to the base station selected in the attenuation setting module, the selected pre-attenuator As a device type and write the set attenuation value as an interference adjustment instruction; Correspondingly, the attenuation setting module is further configured to provide the instruction sending module with the identification corresponding to the selected base station, the selected pre-attenuator as the device type, and the attenuation value. 11. The device according to claim 7, wherein the interference adjustment module further comprises: an AGC submodule and an instruction receiving submodule; The AGC submodule is used to calculate the attenuation value using the AGC attenuation algorithm, and send the calculated attenuation value to the command receiving submodule; The instruction receiving sub-module is used to extract the device type in the interference adjustment instruction received by the receiving module, determine the device to be adjusted as a pre-attenuator according to the device type, and then extract the attenuation value in the interference adjustment instruction, and use the The attenuation value in the interference adjustment instruction is added to the attenuation value provided by the AGC attenuation algorithm to obtain the attenuation value of the pre-attenuator, and the attenuation value of the pre-attenuator is used to adjust the pre-attenuator. 12. The device according to claim 7, further comprising: an RTWP detection and reporting module, configured to detect the current RTWP value of the base station in real time, and when the receiving module receives the interference adjustment instruction, The corrected RTWP value obtained by performing offset subtraction on the detected current RTWP value is reported to the base station for subsequent processing; the base station's subsequent stage sends the corrected RTWP value to the state detection module; Correspondingly, the state detection module is also used to send the attenuation value in the interference adjustment instruction to the RTWP detection and reporting module; set the corresponding base station in the detection control software according to the corrected RTWP value sent by the received RTWP detection and reporting module The RTWP value. 13. The device according to claim 8, wherein the attenuation setting module is installed in an OMC, and the receiving module and the interference adjustment module are installed in a base station. 14. The device according to claim 10, wherein the instruction sending module is installed in the OMC. 15. The device according to claim 7, wherein the state detection module is installed in the OMC. 16. The device according to claim 12, wherein the RTWP detection and reporting module is installed in a base station.