CN111093218A

CN111093218A - Interference analysis method and device

Info

Publication number: CN111093218A
Application number: CN201811238337.0A
Authority: CN
Inventors: 黄勋苍; 张弛; 冯园园; 薛林
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-10-23
Filing date: 2018-10-23
Publication date: 2020-05-01

Abstract

The embodiment of the invention provides an interference analysis method and device, which are applied to an interference analysis system, wherein the method comprises the following steps: the interference analysis system obtains the cell uplink average interference power of each cell from the OMC and determines the interfered cell; acquiring first interference information of an interfered cell and judging whether the interference of the interfered cell is external interference or not; if the interference suffered by the interfered cell is determined to be external interference, acquiring second interference information of the interfered cell from the OMC; judging the external interference type corresponding to the interfered cell according to the second interference information; if the interference suffered by the interfered cell is determined to be internal interference, acquiring third interference information of the interfered cell from the OMC; and judging the internal interference type corresponding to the interfered cell according to the third interference information. Therefore, the interference analysis system automatically determines the interference type of the interfered cell, so that a user can directly position the interference reason according to the interference type, and the efficiency and the accuracy of positioning the interference reason are improved.

Description

Interference analysis method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an interference analysis method and an interference analysis apparatus.

Background

Currently, a base station provides a mobile network service for a terminal device, so that a user can connect to the internet through a mobile network of the terminal device to implement various internet access services, such as watching a video, downloading/uploading a picture, chatting, and the like. The base station can only provide mobile network service for the terminal equipment in the network coverage area, and the terminal equipment outside the network coverage area can not provide the mobile network service; therefore, the coverage area of the mobile network can be increased by increasing the number of the base stations, so as to improve the user experience.

However, as the number of base stations increases, the distance between the base stations is smaller and smaller, which leads to more and more frequent interference between cells, and the reason for quickly locating the interference of the interfered cell is more and more important. At present, interference analysis is carried out in a manual mode, the interference type is determined in a successive checking mode, the interference reason is located again, and the efficiency and the accuracy are very low.

Disclosure of Invention

The embodiment of the invention provides an interference analysis method, which aims to improve the efficiency and accuracy of positioning the interference reasons.

Correspondingly, the embodiment of the invention also provides an interference analysis device, which is used for ensuring the realization and the application of the method.

In order to solve the above problem, the present invention discloses an interference analysis method, which is applied to an interference analysis system, wherein the interference analysis system is connected with an operation maintenance center OMC of a base station, and the method comprises the following steps: the interference analysis system obtains the cell uplink average interference power corresponding to each cell from the OMC, and determines the interfered cell according to the cell uplink average interference power; acquiring first interference information corresponding to the interfered cell, and judging whether the interference received by the interfered cell is external interference or not according to the first interference information; if the interference suffered by the interfered cell is determined to be external interference, acquiring second interference information corresponding to the interfered cell from the OMC; judging the external interference type corresponding to the interfered cell according to the second interference information; if the interference suffered by the interfered cell is determined to be internal interference, acquiring third interference information corresponding to the interfered cell from the OMC; and judging the internal interference type corresponding to the interfered cell according to the third interference information.

Optionally, the first interference information includes: the uplink average interference power of the first N physical resource blocks PRB in the subframe 1 and the uplink average interference power of the last N PRBs in the subframe 6; the determining whether the interference received by the interfered cell is external interference according to the first interference information includes: if the uplink average interference power of M PRBs in the first N PRBs in the subframe 1 meets the external interference threshold, and/or the uplink average interference power of M PRBs in the last N PRBs in the subframe 6 meets the external interference threshold, determining that the interference suffered by the interfered cell is external interference; otherwise, determining that the interference suffered by the interfered cell is internal interference; wherein N and M are positive integers, and M is less than or equal to N.

Optionally, the external interference type includes at least one of: a jamming interference type, a harmonic interference type, an intermodulation interference type, a spurious interference type.

Optionally, the second interference information includes: the judging the external interference type corresponding to the interfered cell according to the second interference information comprises the following steps: if the blocking information is determined to meet the blocking interference condition, determining that the external interference type corresponding to the interfered cell is the blocking interference type; if the harmonic information is determined to meet the harmonic interference condition, determining that the external interference type corresponding to the interfered cell is the harmonic interference type; if the intermodulation information is determined to meet the intermodulation interference condition, determining that the external interference type corresponding to the interfered cell is the intermodulation interference type; otherwise, determining that the external interference type corresponding to the interfered cell is a stray interference type.

Optionally, the blocking information comprises: the uplink average interference power of all PRBs corresponding to the subframe 1, the uplink average interference power of all PRBs corresponding to the subframe 6, the number of times of successful establishment of RRC connection and the number of times of RRC request; determining that the blocking information satisfies a blocking interference condition when at least one of: the uplink average interference power in the subframe 1 and the subframe 6 meets the PRB number of the first blocking threshold, and the ratio of the total PRB number in the subframe 1 and the subframe 6 meets the set ratio threshold; the uplink average interference power of M PRBs in the first N PRBs of the subframe 1 meets a second blocking threshold, and/or the uplink average interference power of M PRBs in the last N PRBs of the subframe 6 meets the second blocking threshold; the RRC connection establishment success rate meets a third blocking threshold; the number of RRC requests satisfies the fourth blocking threshold.

Optionally, the harmonic information includes: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the method further comprises determining whether the harmonic information satisfies a harmonic interference condition by: calculating the average value of the uplink average interference power of the PRBs according to the uplink average interference power of all the PRBs corresponding to the subframe 1 and the uplink average interference power of all the PRBs corresponding to the subframe 6; respectively calculating the difference value between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the harmonic interference threshold; dividing PRBs of which the uplink average interference power is greater than a harmonic interference threshold into X groups, wherein one group comprises S PRBs which are continuous; if X is larger than the first quantity threshold and smaller than the second quantity threshold, determining that the harmonic information meets the harmonic interference condition; wherein X and S are both positive integers.

Optionally, the intermodulation information comprises: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the method further comprises determining whether the intermodulation information satisfies an intermodulation interference condition by: calculating the average value of the uplink average interference power of the PRBs according to the uplink average interference power of all the PRBs corresponding to the subframe 1 and the uplink average interference power of all the PRBs corresponding to the subframe 6; respectively calculating the difference value between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the intermodulation interference threshold; dividing the PRBs of which the uplink average interference power is greater than the intermodulation interference threshold into Y groups, wherein one group comprises W PRBs which are continuous; if Y is larger than a third quantity threshold and smaller than a fourth quantity threshold, determining that the intermodulation information meets an intermodulation interference condition; wherein Y and W are both positive integers.

Optionally, the internal interference type includes a slot offset interference type, and the third interference information includes cell frame header offset information; the determining the internal interference type corresponding to the interfered cell according to the third interference information includes: determining other interfered cells in the same frequency band with the interfered cell within a set range, and acquiring frame header offset information of cells corresponding to the other interfered cells from an OMC (orthogonal matching pursuit); and if the cell frame header offset information of the interfered cell is matched with the cell frame header offset information corresponding to other interfered cells, determining that the internal interference type corresponding to the interfered cell is a time slot offset interference type.

Optionally, the method further comprises: and displaying the interfered cell on a map according to the position information of the interfered cell, and identifying a corresponding interference type for the interfered cell.

The embodiment of the invention also provides an interference analysis device, which is applied to an interference analysis system, wherein the interference analysis system is connected with an Operation Maintenance Center (OMC) of a base station, and the device comprises: an interfering cell determining module, configured to obtain, from the OMC, cell uplink average interference power corresponding to each cell, and determine an interfered cell according to the cell uplink average interference power; the interference judging module is used for acquiring first interference information corresponding to the interfered cell and judging whether the interference received by the interfered cell is external interference or not according to the first interference information; an external interference type determining module, configured to obtain, if it is determined that the interference experienced by the interfered cell is external interference, second interference information corresponding to the interfered cell from the OMC; judging the external interference type corresponding to the interfered cell according to the second interference information; an internal interference type determining module, configured to obtain third interference information corresponding to the interfered cell from an OMC if it is determined that the interference received by the interfered cell is internal interference; and judging the internal interference type corresponding to the interfered cell according to the third interference information.

Optionally, the first interference information includes: the uplink average interference power of the first N physical resource blocks PRB in the subframe 1 and the uplink average interference power of the last N PRBs in the subframe 6; the interference judgment module is specifically configured to determine that the interference suffered by the interfered cell is external interference if the uplink average interference power of M PRBs in the first N PRBs in the subframe 1 meets an external interference threshold, and/or the uplink average interference power of M PRBs in the last N PRBs in the subframe 6 meets the external interference threshold; otherwise, determining that the interference suffered by the interfered cell is internal interference; wherein N and M are positive integers, and M is less than or equal to N.

Optionally, the second interference information includes: the external interference type determining module is specifically configured to determine that an external interference type corresponding to the interfered cell is a blocking interference type if it is determined that the blocking information satisfies a blocking interference condition; if the harmonic information is determined to meet the harmonic interference condition, determining that the external interference type corresponding to the interfered cell is the harmonic interference type; if the intermodulation information is determined to meet the intermodulation interference condition, determining that the external interference type corresponding to the interfered cell is the intermodulation interference type; otherwise, determining that the external interference type corresponding to the interfered cell is a stray interference type.

Optionally, the harmonic information includes: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the device further comprises: the harmonic interference condition judgment module is used for calculating the average value of the uplink average interference power of the PRBs according to the uplink average interference power of all the PRBs corresponding to the subframe 1 and the uplink average interference power of all the PRBs corresponding to the subframe 6; respectively calculating the difference value between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the harmonic interference threshold; dividing PRBs of which the uplink average interference power is greater than a harmonic interference threshold into X groups, wherein one group comprises S PRBs which are continuous; if X is larger than the first quantity threshold and smaller than the second quantity threshold, determining that the harmonic information meets the harmonic interference condition; wherein X and S are both positive integers.

Optionally, the intermodulation information comprises: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the device further comprises: the intermodulation interference condition judgment module is used for calculating the average value of the uplink average interference power of the PRBs according to the uplink average interference power of all the PRBs corresponding to the subframe 1 and the uplink average interference power of all the PRBs corresponding to the subframe 6; respectively calculating the difference value between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the intermodulation interference threshold; dividing the PRBs of which the uplink average interference power is greater than the intermodulation interference threshold into Y groups, wherein one group comprises W PRBs which are continuous; if Y is larger than a third quantity threshold and smaller than a fourth quantity threshold, determining that the intermodulation information meets an intermodulation interference condition; wherein Y and W are both positive integers.

Optionally, the internal interference type includes a slot offset interference type, and the third interference information includes cell frame header offset information; the internal interference type determining module is specifically configured to determine other interfered cells in the same frequency band as the interfered cell within a set range, and acquire frame header offset information of cells corresponding to the other interfered cells from the OMC; and if the cell frame header offset information of the interfered cell is matched with the cell frame header offset information corresponding to other interfered cells, determining that the internal interference type corresponding to the interfered cell is a time slot offset interference type.

Optionally, the apparatus further comprises: and the display module is used for displaying the interfered cell on a map according to the position information of the interfered cell and identifying the corresponding interference type for the interfered cell.

Compared with the prior art, the embodiment of the invention has the following advantages:

in the embodiment of the invention, an interference analysis system can obtain the cell uplink average interference power corresponding to each cell from an OMC (orthogonal matching pursuit), and then determine an interfered cell according to the cell uplink average interference power; acquiring first interference information corresponding to the interfered cell, and judging whether the interference received by the interfered cell is external interference or not according to the first interference information; when the interference suffered by the interfered cell is determined to be external interference, second interference information corresponding to the interfered cell can be obtained from the OMC; judging the external interference type corresponding to the interfered cell according to the second interference information; when determining that the interference suffered by the interfered cell is internal interference, obtaining third interference information corresponding to the interfered cell from the OMC; judging the internal interference type corresponding to the interfered cell according to the third interference information; therefore, the interference analysis system automatically determines the interfered cell and the corresponding interference type, so that the user can directly position the interference reason according to the interference type, and the efficiency and the accuracy of positioning the interference reason are improved.

Drawings

FIG. 1 is a schematic diagram of an interference analysis system embodiment of the present invention;

FIG. 2 is a flow chart illustrating the steps of an embodiment of an interference analysis method of the present invention;

FIG. 3 is a flow chart of the steps of an alternative embodiment of an interference analysis method of the present invention;

FIG. 4a is a schematic diagram of a location of an interfered cell according to an embodiment of the present invention;

FIG. 4b is a schematic diagram of another interfered cell according to the embodiment of the present invention;

fig. 4c is a schematic diagram of an interfered cell list display interface according to an embodiment of the present invention;

FIG. 4d is a schematic view of an interference detail display interface according to an embodiment of the present invention;

FIG. 4e is a schematic diagram of a subframe waveform display interface according to an embodiment of the present invention;

FIG. 5 is a block diagram of an interference analyzer according to an embodiment of the present invention;

fig. 6 is a block diagram of an alternative embodiment of an interference analyzer of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

One of the core ideas of the embodiment of the invention is that an interference analysis system automatically analyzes interference to determine an interfered cell and a corresponding interference type, and then a user can directly determine an interference reason according to the interference type of the interfered cell, thereby improving the efficiency and the accuracy of positioning the interference reason.

The interference analysis system may be a system capable of providing relevant services such as interference analysis and interference monitoring for cells, and includes a client and a server, which may be connected to an OMC (Operation and maintenance center) of a base station, and acquire information such as configuration information and network performance information of each cell corresponding to the base station through the OMC. The server-side program of the interference analysis system can be deployed on a server of the OMC and can also be deployed on other servers; the embodiments of the present invention are not limited in this regard. Referring to fig. 1, a schematic diagram of an embodiment of an interference analysis system is shown, in which a server-side program of the interference analysis system in fig. 1 is deployed on another server.

Referring to fig. 2, a flowchart illustrating steps of an embodiment of an interference analysis method according to the present invention is shown, which may specifically include the following steps:

step 201, the interference analysis system obtains the cell uplink average interference power corresponding to each cell from the OMC, and determines the interfered cell according to the cell uplink average interference power.

In the embodiment of the invention, a user can execute interference analysis operation in a client of an interference analysis system so that the interference analysis system can perform interference analysis on all cells monitored by the interference analysis system; after the user performs the interference analysis operation, the interference analysis system may receive the corresponding interference analysis instruction, and then may perform interference analysis according to the interference analysis instruction. The interference analysis system may first obtain the cell uplink average interference power corresponding to each cell from the OMC, and determine whether the cell is an interfered cell according to the cell uplink average interference power corresponding to each cell; and then the interfered cells in all the monitored cells can be determined, and then each interfered cell is analyzed to determine the corresponding interference type, so that a user can determine the corresponding interference reason according to the interference type. Of course, the interference analysis system may also actively perform interference analysis, for example, perform interference analysis according to a preset period, where the preset period may be set as required, for example, 15 minutes.

Step 202, obtaining first interference information corresponding to the interfered cell.

Step 203, determining whether the interference received by the interfered cell is external interference according to the first interference information.

In the embodiment of the present invention, the interference suffered by the cell may be divided into internal interference and external interference, where the internal interference may include multiple types such as time slot offset interference, and the external interference may also include multiple types such as blocking interference, harmonic interference, and the like; therefore, whether the interference suffered by the interfered cell is internal interference or external interference can be judged firstly, and then the interference type corresponding to the interference suffered by the interfered cell is further judged. The first interference information may be used to determine whether the interference received by the interfered cell is external interference, and may include uplink average interference power information, such as uplink average interference power of a Physical Resource Block (PRB) corresponding to a radio frame; and then determining whether the interference suffered by the interfered cell is external interference or internal interference according to the first interference information. If it is determined that the interference suffered by the interfered cell is external interference, step 204 may be executed, and if it is determined that the interference suffered by the interfered cell is internal interference, step 205 may be executed.

Step 204, obtaining second interference information corresponding to the interfered cell from the OMC, and determining an external interference type corresponding to the interfered cell according to the second interference information.

In this embodiment of the present invention, if it is determined that the interference experienced by the interfered cell is external interference, second interference information corresponding to the interfered cell may be obtained from the OMC, where the second interference information may be used to determine a type of the external interference experienced by the interfered cell, and may include uplink average power information, such as uplink average interference power of a PRB corresponding to a Radio frame, and may also include RRC (Radio Resource Control) request information, such as RRC request times. And then, the interference type (i.e. external interference type) corresponding to the interfered cell can be judged according to the second interference information.

Step 205, obtaining third interference information corresponding to the interfered cell from the OMC, and determining an internal interference type corresponding to the interfered cell according to the third interference information.

In the embodiment of the present invention, if it is determined that the interference experienced by the interfered cell is internal interference, third interference information corresponding to the interfered cell may be obtained from the OMC, where the second interference information may be used to determine the type of the internal interference experienced by the interfered cell, and may include offset information, frequency band information, and the like; and then, the interference type (i.e., the internal interference type) corresponding to the interfered cell can be determined according to the third interference information.

In another embodiment of the present invention, the determination of the interference type of the interfered cell is described in detail as follows:

referring to fig. 3, a flowchart illustrating steps of an alternative embodiment of the interference analysis method of the present invention is shown, which may specifically include the following steps:

step 301, the interference analysis system obtains the cell uplink average interference power corresponding to each cell from the OMC, and determines the interfered cell according to the cell uplink average interference power.

In the embodiment of the present invention, the interference analysis system may obtain the uplink average interference power of each cell monitored by the OMC from the OMC, and then determine, for each cell, whether the cell is an interfered cell according to the uplink average interference power corresponding to the cell. The method includes the steps that whether the uplink average interference power of the cell exceeds a cell interference power threshold value or not can be judged, and if the uplink average interference power of the cell exceeds the cell interference power threshold value, the cell can be determined to be an interfered cell; if the uplink average interference power of the cell does not exceed the cell interference power threshold, it may be determined that the cell is not an interfered cell. The cell interference power threshold may be set as desired, such as-110 dBm.

After determining the interfered cell, the interference analysis system may first determine whether the interference received by the interfered cell is internal interference or external interference, and then further determine a corresponding interference type, specifically as follows:

step 302, obtaining first interference information corresponding to the interfered cell.

Step 303, determining whether the interference received by the interfered cell is external interference according to the first interference information.

In the embodiment of the present invention, an interference analysis system may obtain first interference information, and determine whether an interference suffered by an interfered cell is external interference or internal interference according to the first interference information, where the first interference information may include uplink average interference power of first N PRBs in a subframe 1 and uplink average interference power of last N PRBs in a subframe 6, and one radio frame may include 10 subframes, and one subframe may correspond to multiple PRBs; the number of PRBs corresponding to a subframe is related to the bandwidth of a cell, for example, the bandwidth of a cell is 5M, one subframe corresponds to 25 PRBs, the bandwidth of a cell is 10M, one subframe corresponds to 50 PRBs, the bandwidth of a cell is 15M, one subframe corresponds to 75 PRBs, the bandwidth of a cell is 20M, and one subframe corresponds to 100 PRBs. Then, the number of the PRBs of which the uplink average interference power meets the external interference threshold in the first N PRBs in the subframe 1 and the number of the PRBs of which the uplink average interference power meets the external interference threshold in the last N PRBs in the subframe 6 can be determined; if the uplink average interference power of M PRBs in the first N PRBs of subframe 1 meets the external interference threshold, and/or the uplink average interference power of M PRBs in the last N PRBs of subframe 6 meets the external interference threshold, determining that the interference received by the interfered cell is external interference, and then step 304 may be executed; otherwise, it is determined that the interference suffered by the interfered cell is internal interference, and then step 312 may be executed. Wherein N, M is a positive integer, M is less than or equal to N, and M can be set as required, for example, N is 4, and M is 3; the external interference threshold may be set as desired, for example, -105 dBm.

And step 304, acquiring second interference information corresponding to the interfered cell from the OMC.

After determining that the interference suffered by the interfered cell is external interference, the embodiment of the invention can acquire second interference information corresponding to the interfered cell, and then judge the external interference type corresponding to the interfered cell according to the second interference information; wherein the external interference type may include: a blocking interference type, a harmonic interference type, an intermodulation interference type, and a spurious interference type, where correspondingly, the second interference information includes: congestion information, harmonic information, and intermodulation information. Therefore, if the blocking information is determined to meet the blocking interference condition, determining that the external interference type corresponding to the interfered cell is the blocking interference type; if the harmonic information is determined to meet the harmonic interference condition, determining that the external interference type corresponding to the interfered cell is the harmonic interference type; if the intermodulation information is determined to meet the intermodulation interference condition, determining that the external interference type corresponding to the interfered cell is the intermodulation interference type; otherwise, determining that the external interference type corresponding to the interfered cell is a stray interference type. The method comprises the following specific steps:

and 305, judging whether the blocking information meets a blocking interference condition.

Therefore, it can be determined whether the blocking information satisfies a blocking interference condition, where the blocking information includes: the uplink average interference power of all PRBs corresponding to the subframe 1, the uplink average interference power of all PRBs corresponding to the subframe 6, the number of times of successful establishment of RRC connection and the number of times of RRC request; further, the embodiment of the present invention may specifically determine whether the blocking information satisfies the blocking interference condition as follows:

in an example of the present invention, if the uplink average interference power in subframe 1 and subframe 6 meets the PRB number of the first blocking threshold, and the ratio of the total PRB number in subframe 1 and subframe 6 meets the set ratio threshold; determining that the blocking information satisfies a blocking interference condition. The first blocking threshold may be set as required, and the set ratio threshold may also be set as 75% as required.

In another example of the present invention, if the uplink average interference power of M PRBs in the first N PRBs of the subframe 1 meets the second blocking threshold, and/or the uplink average interference power of M PRBs in the last N PRBs of the subframe 6 meets the second blocking threshold; determining that the blocking information satisfies a blocking interference condition. The second blocking threshold may be set as required, and may be the same as the external interference threshold.

In another example of the present invention, if the RRC connection establishment success rate satisfies the third blocking threshold, it is determined that the blocking information satisfies the blocking interference condition. Wherein, the RRC connection establishment success rate may be equal to a ratio of the number of RRC connection establishment successes to the number of RRC request times; the third blocking threshold may be set as desired.

In another example of the present invention, if the number of RRC requests satisfies the fourth blocking threshold, it is determined that the blocking information satisfies the blocking interference condition. Wherein the fourth blocking threshold may be set as desired.

If it is determined that the blocking information satisfies the blocking interference condition, step 306 may be executed; if it is determined that the blocking information does not satisfy the blocking interference condition, step 307 may be executed.

Step 306, determining that the external interference type corresponding to the interfered cell is a blocking interference type.

And if the blocking information is determined to meet the blocking interference condition, determining that the external interference type corresponding to the interfered cell is the blocking interference type.

And 307, judging whether the harmonic information meets a harmonic interference condition.

If the blocking information is determined not to satisfy the blocking interference condition, whether the harmonic information satisfies the harmonic interference condition or not can be judged; the harmonic information includes: the uplink average interference power of all PRBs corresponding to the subframe 1 and the uplink average interference power of all PRBs corresponding to the subframe 6, wherein the determining whether the harmonic information satisfies the harmonic interference condition may include the following sub-steps:

and a substep 71, calculating an uplink average interference power average value of the PRBs according to the uplink average interference power of all PRBs corresponding to the subframe 1 and the uplink average interference power of all PRBs corresponding to the subframe 6. Reference may be made to the following equation:

P_avg: average value of uplink interference power, P_1i: power, P, of ith PRB corresponding to subframe 1_6i: the power of the ith PRB corresponding to subframe 6, N is the number of

subframes

1 and 6.

And a substep 72 of calculating a difference between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the harmonic interference threshold.

Wherein, for subframe 1: calculating the difference value between the uplink average interference power corresponding to each PRB and the average value: CUT_1i＝P_1i-P_avgAnd determining the CUT_1iPRBs that are greater than a harmonic interference threshold. Wherein the harmonic interference threshold may be set as desired, for example, 10 dBm.

For subframe 6: calculating the difference value between the uplink average interference power corresponding to each PRB and the average value: CUT_6i＝P_6i-P_avgAnd determining the CUT_6iPRBs that are greater than a harmonic interference threshold.

And a substep 73, dividing the PRBs with the uplink average interference power larger than the harmonic interference threshold into X groups, wherein one group comprises S PRBs, and the S PRBs are continuous. Wherein X and S are both positive integers, and S can be set as 3 as required.

And a substep 74 of determining that the harmonic information satisfies the harmonic interference condition if X is greater than the first quantity threshold and less than the second quantity threshold. The first quantity threshold may be set as 1 according to a requirement, and the second quantity threshold may also be set as 4 according to a requirement.

If it is determined that the harmonic information satisfies the harmonic interference condition, step 308 may be executed; if it is determined that the harmonic information does not satisfy the harmonic interference condition, step 309 may be executed.

And 308, determining that the external interference type corresponding to the interfered cell is a harmonic interference type.

And when the harmonic information is determined to meet the harmonic interference condition, determining that the external interference type corresponding to the interfered cell is the harmonic interference type.

Step 309, judging whether the intermodulation information meets intermodulation interference conditions.

When it is determined that the harmonic information does not satisfy a harmonic interference condition, it may be determined whether the intermodulation information satisfies an intermodulation interference condition; wherein the intermodulation information comprises: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the method specifically comprises the following steps:

and a substep 91, calculating an uplink average interference power average value of the PRBs according to the uplink average interference power of all PRBs corresponding to the subframe 1 and the uplink average interference power of all PRBs corresponding to the subframe 6.

And a substep 92, respectively calculating the difference between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the intermodulation interference threshold. Wherein, the intermodulation interference threshold can be set according to requirements.

Substep 93, dividing the PRBs with the uplink average interference power larger than the intermodulation interference threshold into Y groups, wherein one group comprises W PRBs which are continuous; wherein Y and W are both positive integers; the W may be set as 5 as desired.

Substep 94, if Y is greater than a third number threshold and less than a fourth number threshold, determining that the intermodulation information satisfies an intermodulation interference condition. The third quantity threshold may be set as 3 according to the requirement, and the second quantity threshold may also be set as 6 according to the requirement.

Wherein substeps 91-94 are similar to substeps 71-74 described above and will not be described in detail herein.

If it is determined that the intermodulation information satisfies an intermodulation interference condition, step 310 may be executed; if it is determined that the intermodulation information satisfies the intermodulation interference condition, step 311 may be executed.

Step 310, determining that the external interference type corresponding to the interfered cell is an intermodulation interference type.

And when the intermodulation information is determined to meet the intermodulation interference condition, determining that the external interference type corresponding to the interfered cell is the intermodulation interference type.

Step 311, determining that the external interference type corresponding to the interfered cell is a stray interference type.

And when the blocking information is determined to meet the blocking interference condition, the harmonic information does not meet the harmonic interference condition, and the intermodulation information does not meet the intermodulation interference condition, determining that the external interference type corresponding to the interfered cell is the spurious interference type.

Step 312, obtaining third interference information corresponding to the interfered cell from the OMC.

When the interference received by the interfered cell is determined to be internal interference, third interference information can be obtained, and the internal interference type corresponding to the interfered cell is judged according to the third interference information; wherein the third interference information comprises cell frame header offset information and frequency band information; the method comprises the following specific steps:

step 313, determining other interfered cells in the same frequency band as the interfered cell within the set range, and obtaining frame header offset information of the cell corresponding to the other interfered cells from the OMC.

In the embodiment of the present invention, other interfered cells in the same frequency band as the interfered cell may be determined according to the frequency band information of the interfered cell and the frequency band information of other interfered cells within a set range; and then acquiring cell frame header offset information corresponding to the other interfering cells so as to judge the internal interference type of the interfered cell according to the cell frame header offset information.

Step 314, if the frame header offset information of the cell interfered with matches the frame header offset information of the cell corresponding to other interfered cells, determining that the internal interference type corresponding to the interfered cell is a time slot offset interference type.

The cell frame header offset information of the interfered cell and the cell frame header offset information of the other interfered cells can be compared, whether the cell frame header offset information of the interfered cell is matched with the cell frame header offset information of the other interfered cells or not is judged, if the cell frame header offset information of the interfered cell is matched with the cell frame header offset information of the other interfered cells, the internal interference type corresponding to the interfered cell is determined to be a time slot offset interference type, and if the cell frame header offset information of the interfered cell is not matched with the cell frame header offset information of the other interfered cells, the internal interference type corresponding to the interfered cell is determined to be other.

The embodiment of the present invention does not limit the steps determined in the above steps 305, 307, and 309, and the determining sequence may be: judging whether the harmonic information meets the harmonic interference condition or not, judging whether the blocking information meets the blocking interference condition or not, and judging whether the intermodulation information meets the intermodulation interference condition or not; it can also be: judging whether the harmonic information meets the harmonic interference condition or not, judging whether the intermodulation information meets the intermodulation interference condition or not, and judging whether the blocking information meets the blocking interference condition or not; and so on.

In the embodiment of the invention, the interference analysis system can obtain the corresponding value of each counter group from the OMC, and each counter group can comprise a plurality of counters; the uplink average interference power of the cell may be determined according to a value corresponding to the counter R098_ 001: value of R098_ 001-interference modifier, which is related to the bandwidth of the cell. The uplink received interference power of each PRB corresponding to subframe 1 may be determined according to the value of the counter R063, for example, R063_001 is the uplink received interference power of the first PRB corresponding to subframe 1, R063_002 is the uplink received interference power of the second PRB corresponding to subframe 1, and so on. The uplink received interference power of each PRB corresponding to the subframe 6 may be determined according to the value of the counter R069, for example, R069_001 is the uplink received interference power corresponding to the first PRB corresponding to the subframe 6, R069_002 is the uplink received interference power corresponding to the second PRB corresponding to the subframe 6, and so on. And the number of RRC request times may be determined according to the values of partial counters (e.g., R001_015, R001_013, R001_017, R001_019, and R001_ 021) in the counter group R001, and the number of RRC connection establishment success times may be determined from the values of the partial counters (e.g., R001_014, R001_016, R001_018, R001_020, and R001_ 022).

In an optional embodiment of the present invention, the interference analysis system may display the interfered cell on a map according to the location information of the interfered cell, and identify a corresponding interference type for the interfered cell. And thus facilitates a more intuitive determination of the interfered cell and interference type for the user, as shown in fig. 4a, since the spurious interference type is all other external interference types except for the harmonic interference type, the intermodulation interference type and the jamming interference type, and may include various other interferences, the spurious interference type is not shown in fig. 4.

In an optional embodiment of the present invention, when determining an interfered cell, a plurality of cell interference power thresholds may be set, such as-115 dBm, -110dBm, -90dBm, 0dBm, and an interval is set according to a cell interference power margin, where each interval corresponds to an interference level; as the interval 0: -115dBm, corresponding to an interference level of: no interference, interval 1: -115dBm through-110 dBm, corresponding interference levels being: slight interference, interval 2: -110dBm through-90 dBm, corresponding interference levels being: general interference, interval 3: -90dBm through-0 dBm, the interference level is: severe interference. Correspondingly, the interference analysis system may display the interfered cell on a map according to the location information of the interfered cell, and display the interference degree of each cell, as shown in fig. 4 b.

In an optional embodiment of the present invention, after determining the interfered cell, the interference analysis system may generate and display an interfered cell list, as shown in fig. 4 c; when the user needs to check the interference details of the interfered cell, the user can click the identifier corresponding to the "interference analysis" column in the interfered cell list, and the interference analysis system can display an interference analysis interface, as shown in fig. 4 d. When the user needs to check the interference index, the user may click on the interfering cell to be checked, and the interference analysis system may display a waveform diagram of all subframes in the radio frame on the client interface, as shown in fig. 4e, where waveforms of

subframes

1, 2, 6, and 7 are shown in fig. 4 e.

Further, after determining the interfered cell and the corresponding interference type, the embodiment of the present invention may also display the interfered cell on a map according to the location information of the interfered cell, and identify the corresponding interference type for the interfered cell; and further, the user can more intuitively determine the position and the interference type of the interfered cell.

Thirdly, the embodiment of the invention can divide the external interference types into a blocking interference type, a harmonic interference type, an intermodulation interference type and a stray interference type, and further, the external interference types are refined, so that a user can quickly locate the interference reasons, and the locating efficiency of the interference reasons is further improved.

It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.

The embodiment of the invention also provides an interference analysis device which is applied to the interference analysis system.

Referring to fig. 5, a block diagram of an interference analysis apparatus according to an embodiment of the present invention is shown, and specifically includes the following modules:

an interfering cell determining module 501, configured to obtain, from the OMC, cell uplink average interference power corresponding to each cell, and determine an interfered cell according to the cell uplink average interference power;

an interference determining module 502, configured to obtain first interference information corresponding to the interfered cell, and determine whether interference received by the interfered cell is external interference according to the first interference information;

an external interference type determining module 503, configured to obtain, if it is determined that the interference received by the interfered cell is external interference, second interference information corresponding to the interfered cell from the OMC; judging the external interference type corresponding to the interfered cell according to the second interference information;

an internal interference type determining module 504, configured to obtain third interference information corresponding to the interfered cell from the OMC if it is determined that the interference received by the interfered cell is internal interference; and judging the internal interference type corresponding to the interfered cell according to the third interference information.

Referring to fig. 6, a block diagram of an alternative embodiment of an interference analysis apparatus of the present invention is shown.

In an optional embodiment of the present invention, the first interference information includes: the uplink average interference power of the first N physical resource blocks PRB in the subframe 1 and the uplink average interference power of the last N PRBs in the subframe 6; the interference determining module 502 is specifically configured to determine that the interference suffered by the interfered cell is external interference if the uplink average interference power of M PRBs in the first N PRBs in the subframe 1 meets an external interference threshold, and/or the uplink average interference power of M PRBs in the last N PRBs in the subframe 6 meets the external interference threshold; otherwise, determining that the interference suffered by the interfered cell is internal interference; wherein N and M are positive integers, and M is less than or equal to N.

In an optional embodiment of the invention, the external interference type includes at least one of: a jamming interference type, a harmonic interference type, an intermodulation interference type, a spurious interference type.

In an optional embodiment of the present invention, the second interference information includes: the external interference type determining module 503 is specifically configured to determine that the external interference type corresponding to the interfered cell is a blocking interference type if it is determined that the blocking information satisfies a blocking interference condition; if the harmonic information is determined to meet the harmonic interference condition, determining that the external interference type corresponding to the interfered cell is the harmonic interference type; if the intermodulation information is determined to meet the intermodulation interference condition, determining that the external interference type corresponding to the interfered cell is the intermodulation interference type; otherwise, determining that the external interference type corresponding to the interfered cell is a stray interference type.

In an optional embodiment of the present invention, the blocking information comprises: the uplink average interference power of all PRBs corresponding to the subframe 1, the uplink average interference power of all PRBs corresponding to the subframe 6, the number of times of successful establishment of RRC connection and the number of times of RRC request;

determining that the blocking information satisfies a blocking interference condition when at least one of:

the uplink average interference power in the subframe 1 and the subframe 6 meets the PRB number of the first blocking threshold, and the ratio of the total PRB number in the subframe 1 and the subframe 6 meets the set ratio threshold;

the uplink average interference power of M PRBs in the first N PRBs of the subframe 1 meets a second blocking threshold, and/or the uplink average interference power of M PRBs in the last N PRBs of the subframe 6 meets the second blocking threshold;

the RRC connection establishment success rate meets a third blocking threshold;

the number of RRC requests satisfies the fourth blocking threshold.

In an optional embodiment of the present invention, the harmonic information includes: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the device further comprises: a harmonic interference condition judgment module 505, configured to calculate an average uplink interference power value of the PRBs according to the uplink average interference power of all PRBs corresponding to the subframe 1 and the uplink average interference power of all PRBs corresponding to the subframe 6; respectively calculating the difference value between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the harmonic interference threshold; dividing PRBs of which the uplink average interference power is greater than a harmonic interference threshold into X groups, wherein one group comprises S PRBs which are continuous; if X is larger than the first quantity threshold and smaller than the second quantity threshold, determining that the harmonic information meets the harmonic interference condition; wherein X and S are both positive integers.

In an optional embodiment of the present invention, the intermodulation information includes: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the device further comprises: the intermodulation interference condition judgment module 506 is configured to calculate an uplink average interference power average value of the PRBs according to the uplink average interference power of all PRBs corresponding to the subframe 1 and the uplink average interference power of all PRBs corresponding to the subframe 6; respectively calculating the difference value between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the intermodulation interference threshold; dividing the PRBs of which the uplink average interference power is greater than the intermodulation interference threshold into Y groups, wherein one group comprises W PRBs which are continuous; if Y is larger than a third quantity threshold and smaller than a fourth quantity threshold, determining that the intermodulation information meets an intermodulation interference condition; wherein Y and W are both positive integers.

In an optional embodiment of the present invention, the internal interference type includes a timeslot offset interference type, and the third interference information includes cell frame header offset information; the internal interference type determining module 504 is specifically configured to determine other interfered cells in the same frequency band as the interfered cell within a set range, and acquire frame header offset information of cells corresponding to the other interfered cells from the OMC; and if the cell frame header offset information of the interfered cell is matched with the cell frame header offset information corresponding to other interfered cells, determining that the internal interference type corresponding to the interfered cell is a time slot offset interference type.

In an optional embodiment of the present invention, the apparatus further comprises: a display module 507, configured to display the interfered cell on a map according to the location information of the interfered cell, and identify a corresponding interference type for the interfered cell.

For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The interference analysis method and the interference analysis apparatus provided by the present invention are described in detail above, and the principle and the implementation of the present invention are explained in the present document by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. An interference analysis method, applied to an interference analysis system, where the interference analysis system is connected to an Operation and Maintenance Center (OMC) of a base station, the method comprising:

the interference analysis system obtains the cell uplink average interference power corresponding to each cell from the OMC, and determines the interfered cell according to the cell uplink average interference power;

acquiring first interference information corresponding to the interfered cell, and judging whether the interference received by the interfered cell is external interference or not according to the first interference information;

if the interference suffered by the interfered cell is determined to be external interference, acquiring second interference information corresponding to the interfered cell from the OMC; judging the external interference type corresponding to the interfered cell according to the second interference information;

if the interference suffered by the interfered cell is determined to be internal interference, acquiring third interference information corresponding to the interfered cell from the OMC; and judging the internal interference type corresponding to the interfered cell according to the third interference information.

2. The method of claim 1, wherein the first interference information comprises: the uplink average interference power of the first N physical resource blocks PRB in the subframe 1 and the uplink average interference power of the last N PRBs in the subframe 6;

the determining whether the interference received by the interfered cell is external interference according to the first interference information includes:

if the uplink average interference power of M PRBs in the first N PRBs in the subframe 1 meets the external interference threshold, and/or the uplink average interference power of M PRBs in the last N PRBs in the subframe 6 meets the external interference threshold, determining that the interference suffered by the interfered cell is external interference;

otherwise, determining that the interference suffered by the interfered cell is internal interference;

wherein N and M are positive integers, and M is less than or equal to N.

3. The method of claim 1, wherein the external interference types include at least one of: a jamming interference type, a harmonic interference type, an intermodulation interference type, a spurious interference type.

4. The method of claim 3, wherein the second interference information comprises: congestion information, harmonic information and intermodulation information,

the determining the external interference type corresponding to the interfered cell according to the second interference information includes:

if the blocking information is determined to meet the blocking interference condition, determining that the external interference type corresponding to the interfered cell is the blocking interference type;

if the harmonic information is determined to meet the harmonic interference condition, determining that the external interference type corresponding to the interfered cell is the harmonic interference type;

if the intermodulation information is determined to meet the intermodulation interference condition, determining that the external interference type corresponding to the interfered cell is the intermodulation interference type;

otherwise, determining that the external interference type corresponding to the interfered cell is a stray interference type.

5. The method of claim 4, wherein the blocking information comprises: the uplink average interference power of all PRBs corresponding to the subframe 1, the uplink average interference power of all PRBs corresponding to the subframe 6, the number of times of successful establishment of RRC connection and the number of times of RRC request;

the RRC connection establishment success rate meets a third blocking threshold;

the number of RRC requests satisfies the fourth blocking threshold.

6. The method of claim 4, wherein the harmonic information comprises: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the method further comprises determining whether the harmonic information satisfies a harmonic interference condition by:

calculating the average value of the uplink average interference power of the PRBs according to the uplink average interference power of all the PRBs corresponding to the subframe 1 and the uplink average interference power of all the PRBs corresponding to the subframe 6;

respectively calculating the difference value between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the harmonic interference threshold;

dividing PRBs of which the uplink average interference power is greater than a harmonic interference threshold into X groups, wherein one group comprises S PRBs which are continuous;

if X is larger than the first quantity threshold and smaller than the second quantity threshold, determining that the harmonic information meets the harmonic interference condition;

wherein X and S are both positive integers.

7. The method of claim 4, wherein the intermodulation information comprises: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the method further comprises determining whether the intermodulation information satisfies an intermodulation interference condition by:

respectively calculating the difference value between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the intermodulation interference threshold;

dividing the PRBs of which the uplink average interference power is greater than the intermodulation interference threshold into Y groups, wherein one group comprises W PRBs which are continuous;

if Y is larger than a third quantity threshold and smaller than a fourth quantity threshold, determining that the intermodulation information meets an intermodulation interference condition;

wherein Y and W are both positive integers.

8. The method of claim 1, wherein the internal interference type comprises a slot offset interference type, and wherein the third interference information comprises cell frame header offset information;

the determining the internal interference type corresponding to the interfered cell according to the third interference information includes:

determining other interfered cells in the same frequency band with the interfered cell within a set range, and acquiring frame header offset information of cells corresponding to the other interfered cells from an OMC (orthogonal matching pursuit);

and if the cell frame header offset information of the interfered cell is matched with the cell frame header offset information corresponding to other interfered cells, determining that the internal interference type corresponding to the interfered cell is a time slot offset interference type.

9. The method of claim 1, further comprising:

and displaying the interfered cell on a map according to the position information of the interfered cell, and identifying a corresponding interference type for the interfered cell.

10. An interference analysis apparatus, applied to an interference analysis system, where the interference analysis system is connected to an Operation and Maintenance Center (OMC) of a base station, the apparatus comprising:

an interfering cell determining module, configured to obtain, from the OMC, cell uplink average interference power corresponding to each cell, and determine an interfered cell according to the cell uplink average interference power;

the interference judging module is used for acquiring first interference information corresponding to the interfered cell and judging whether the interference received by the interfered cell is external interference or not according to the first interference information;

an external interference type determining module, configured to obtain, if it is determined that the interference experienced by the interfered cell is external interference, second interference information corresponding to the interfered cell from the OMC; judging the external interference type corresponding to the interfered cell according to the second interference information;

an internal interference type determining module, configured to obtain third interference information corresponding to the interfered cell from an OMC if it is determined that the interference received by the interfered cell is internal interference; and judging the internal interference type corresponding to the interfered cell according to the third interference information.

11. The apparatus of claim 10, wherein the first interference information comprises: the uplink average interference power of the first N physical resource blocks PRB in the subframe 1 and the uplink average interference power of the last N PRBs in the subframe 6;

the interference judgment module is specifically configured to determine that the interference suffered by the interfered cell is external interference if the uplink average interference power of M PRBs in the first N PRBs in the subframe 1 meets an external interference threshold, and/or the uplink average interference power of M PRBs in the last N PRBs in the subframe 6 meets the external interference threshold; otherwise, determining that the interference suffered by the interfered cell is internal interference; wherein N and M are positive integers, and M is less than or equal to N.

12. The apparatus of claim 10, wherein the external interference types comprise at least one of: a jamming interference type, a harmonic interference type, an intermodulation interference type, a spurious interference type.

13. The apparatus of claim 12, wherein the second interference information comprises: congestion information, harmonic information and intermodulation information,

the external interference type determining module is specifically configured to determine that the external interference type corresponding to the interfered cell is a blocking interference type if it is determined that the blocking information satisfies a blocking interference condition; if the harmonic information is determined to meet the harmonic interference condition, determining that the external interference type corresponding to the interfered cell is the harmonic interference type; if the intermodulation information is determined to meet the intermodulation interference condition, determining that the external interference type corresponding to the interfered cell is the intermodulation interference type; otherwise, determining that the external interference type corresponding to the interfered cell is a stray interference type.

14. The apparatus of claim 13, wherein the blocking information comprises: the uplink average interference power of all PRBs corresponding to the subframe 1, the uplink average interference power of all PRBs corresponding to the subframe 6, the number of times of successful establishment of RRC connection and the number of times of RRC request;

the RRC connection establishment success rate meets a third blocking threshold;

the number of RRC requests satisfies the fourth blocking threshold.

15. The apparatus of claim 13, wherein the harmonic information comprises: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the device further comprises:

the harmonic interference condition judgment module is used for calculating the average value of the uplink average interference power of the PRBs according to the uplink average interference power of all the PRBs corresponding to the subframe 1 and the uplink average interference power of all the PRBs corresponding to the subframe 6; respectively calculating the difference value between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the harmonic interference threshold; dividing PRBs of which the uplink average interference power is greater than a harmonic interference threshold into X groups, wherein one group comprises S PRBs which are continuous; if X is larger than the first quantity threshold and smaller than the second quantity threshold, determining that the harmonic information meets the harmonic interference condition; wherein X and S are both positive integers.

16. The apparatus of claim 13, wherein the intermodulation information comprises: the subframe 1 corresponds to the uplink average interference power of all PRBs and the subframe 6 corresponds to the uplink average interference power of all PRBs; the device further comprises:

the intermodulation interference condition judgment module is used for calculating the average value of the uplink average interference power of the PRBs according to the uplink average interference power of all the PRBs corresponding to the subframe 1 and the uplink average interference power of all the PRBs corresponding to the subframe 6; respectively calculating the difference value between the uplink average interference power of each PRB and the average value, and determining the PRB of which the uplink average interference power is greater than the intermodulation interference threshold; dividing the PRBs of which the uplink average interference power is greater than the intermodulation interference threshold into Y groups, wherein one group comprises W PRBs which are continuous; if Y is larger than a third quantity threshold and smaller than a fourth quantity threshold, determining that the intermodulation information meets an intermodulation interference condition; wherein Y and W are both positive integers.

17. The apparatus of claim 10, wherein the internal interference type comprises a slot offset interference type, and wherein the third interference information comprises cell frame header offset information;

the internal interference type determining module is specifically configured to determine other interfered cells in the same frequency band as the interfered cell within a set range, and acquire frame header offset information of cells corresponding to the other interfered cells from the OMC; and if the cell frame header offset information of the interfered cell is matched with the cell frame header offset information corresponding to other interfered cells, determining that the internal interference type corresponding to the interfered cell is a time slot offset interference type.

18. The apparatus of claim 10, further comprising:

and the display module is used for displaying the interfered cell on a map according to the position information of the interfered cell and identifying the corresponding interference type for the interfered cell.