WO2017202092A1

WO2017202092A1 - Cell interference detection method and device, and storage medium

Info

Publication number: WO2017202092A1
Application number: PCT/CN2017/074970
Authority: WO
Inventors: 雷婷; 罗金武; 柳海辉; 朱涛; 范小丽
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-05-25
Filing date: 2017-02-27
Publication date: 2017-11-30
Also published as: CN107438255A

Abstract

Disclosed are a cell interference detection method and device, and a storage medium. The method comprises: acquiring base station measurement information data when each cell in a selected region has an interference warning, wherein the base station measurement information data comprises: interference power data and threshold data; respectively according to the interference power data and the threshold data of each of the cells, determining an interference type of each of the cells, wherein the interference type comprises: forward interference and backward interference; and determining an interference cell according to the number of cells suffering from forward interference and backward interference in the selected region.

Description

Method, device and storage medium for detecting cell interference

Technical field

The present disclosure relates to a cell interference detection technology in the field of mobile communications, and in particular, to a method, an apparatus, and a storage medium for detecting cell interference.

Background technique

In the era of large-scale development of commercial networks such as Time-Division Long Term Evolution (TD-LTE), in some countries and regions, there will be multiple operators deploying TD-LTE networks in the same geographical area. If multiple operators deploy TD-LTE networks in adjacent frequency bands in the same geographical area, if there is no synchronization between them and coordination of uplink and downlink time slot ratios, serious mutual interference will result.

Summary of the invention

To solve the technical problem in the related art, the embodiments of the present disclosure provide a method and apparatus for detecting cell interference, which can detect a current network interference source, that is, an interference cell.

In order to achieve the above object, the technical solution of the embodiment of the present disclosure is implemented as follows:

An embodiment of the present disclosure provides a method for detecting cell interference, where the method includes:

Obtaining base station measurement information data when an interference alarm exists in each cell in the selected area, where the base station measurement information data includes: interference power data and threshold data;

Determining an interference type of each of the cells according to the interference power data of each of the cells and the threshold data, where the interference type includes: forward interference and backward interference;

The interfering cell is determined according to the number of cells of forward interference and backward interference in the selected area.

Preferably, the first cell is any one of the cells in the selected area, and the interference type of the first cell is determined according to the interference power data of the first cell and the threshold data, including:

Determining whether the first cell has interference according to the first cell interference power data and the threshold data;

Determining, according to the roll-off characteristic of the interference power data of the first cell, whether the first cell is an in-band power interference, when determining that the first cell has interference;

When it is determined that the first cell is in-band power interference, filtering the repeated interference power data in the first cell, and selecting interference power data closest to the current time in the interference power data of the first cell is Determining, by the interference power data, a slot position that is closest to the current time in the first interference power data is an interference slot position of the first cell;

Determining an interference type of the first cell according to an interference slot position of the first cell.

Preferably, the threshold data includes: a bottom noise threshold of a regular uplink subframe, and an uplink pilot time slot UpPTS Bottom noise threshold, RB number threshold;

The interference power data includes: UpPTS1, UpPTS2, time slot 1Slot1, and time slot 2Slot2, and each symbol includes an average value of n RBs and a maximum value of n RBs, where n is a natural number.

Preferably, the determining, according to the first cell interference power data and the threshold data, whether the first cell has interference, includes:

When the average value of the n RBs of the UpPTS1 of the first cell exceeds the bottom noise threshold of the UpPTS is greater than the RB number threshold, or the average value of the n RBs of the UpPTS2 of the first cell exceeds The number of RBs of the bottom noise threshold of the UpPTS is greater than the threshold of the number of RBs, or the average number of RBs of the n RBs of the Slot1 of the first cell exceeds the bottom noise threshold of the conventional uplink subframe by more than Determining the RB number threshold, or the average number of RBs of the RBs of the Slot 2 of the first cell exceeding the bottom noise threshold of the regular uplink subframe is greater than the RB number threshold, and determining that the first cell has interference .

Preferably, the determining, according to the roll-off characteristic of the interference power data of the first cell, whether the first cell is in-band power interference, includes:

Set the roll-off characteristic to analyze the upper and lower boundaries. The number of RBs selected is m, m is a natural number greater than 0. When n is greater than or equal to 15, the value of m is 15, and when n is less than 15, m is equal to n;

Determining a roll-off characteristic of an upper boundary and a lower boundary of each symbol according to an average value of n RBs of each of the four symbols of the first cell;

When there is a roll-off characteristic on an upper boundary or a lower boundary of at least one of the four symbols of the first cell, determining that the first cell is in-band power interference.

Preferably, the first symbol is any one of the four symbols of the first cell, and determining a roll-off characteristic of the upper boundary and the lower boundary of the first symbol includes:

The average value of the first RB of the average of the n RBs is selected to be the average of the mth RBs as the upper boundary of the first symbol, and the average of the n-m+1 RBs of the average of the n RBs is selected. The average value of the value to the nth RB is the lower boundary of the first symbol;

Setting an RB selection interval to ΔRB, setting a first threshold and a second threshold;

Starting from the average value of the mth RB of the upper boundary of the first symbol, an average value of one RB is selected every ΔRB until the average value of the first RB is selected, and the adjacent interval of the selected interval is determined as ΔRB The difference between the two average values is a first value, and the first value of the upper boundary of the first symbol is compared with the first threshold, and the number of the first value is greater than the first threshold is determined to be the second a value, when the second value is greater than the second threshold, determining that a roll-off characteristic exists on an upper boundary of the first symbol;

Starting from the average value of the nth RB of the lower boundary of the first symbol, an average value of one RB is selected every ΔRB until the average value of the n-m+1 RBs is selected, and the selection interval is determined as The difference between the two adjacent average values of the ΔRB is a third value, respectively comparing the third value of the lower boundary of the first symbol with the first threshold, and determining that the third value is greater than the first threshold The number is a fourth value, and when the fourth value is greater than the second threshold, determining that there is a roll-off characteristic of the lower boundary of the first symbol.

Preferably, the determining, according to the interference slot position of the first cell, the interference type of the first cell, including:

The interference power data corresponding to the interference slot position of the first cell is the second interference power data;

Determining that the first cell is forward interference before the interference slot position of the first cell is before the second interference power data preset time slot position;

After the interference slot position of the first cell is after the second interference power data preset slot position, determining that the first cell is backward interference.

Preferably, the determining, according to the number of cells of forward interference and backward interference in the selected area, the interference cell, includes:

And counting the number of cells in the forward and backward interferences in the selected area, and determining that the cell with the smallest number of cells in the forward interference and the backward interference is an interference cell.

Preferably, the interference alarm includes: an UpPTS interference alarm or a regular uplink subframe interference alarm.

An embodiment of the present disclosure provides an apparatus for detecting cell interference, where the apparatus includes: an acquiring unit, and a determining unit, where

The acquiring unit is configured to acquire base station measurement information data when an interference alarm exists in each cell in the selected area, where the base station measurement information data includes: interference power data and threshold data;

The determining unit is configured to determine, according to the interference power data of each of the cells and the threshold data, an interference type of each of the cells, where the interference type includes: forward interference and backward interference; The interference cell is determined according to the number of cells of forward interference and backward interference in the selected area.

Preferably, the determining unit is configured to determine whether the first cell has interference according to the first cell interference power data and the threshold data, and is further configured to: when determining that the first cell has interference, according to The roll-off characteristic of the interference power data of the first cell determines whether the first cell is in-band power interference, and is further configured to: when the first cell is determined to be in-band power interference, filter the first cell The repeated interference power data of the first cell, the interference power data closest to the current time in the interference power data of the first cell is selected as the first interference power data, and the time slot closest to the current time in the first interference power data is determined. The location is an interference slot location of the first cell; and is further configured to determine, according to the interference slot location of the first cell, an interference type of the first cell.

Preferably, the threshold data includes: a bottom noise threshold of a conventional uplink subframe, a bottom noise threshold of an uplink pilot time slot UpPTS, and a threshold of an RB number;

The interference power data includes four symbols: UpPTS1, UpPTS2, Slot1, and Slot2, and each symbol includes an average value of n RBs and a maximum value of n RBs, where n is a natural number.

Preferably, the determining unit is configured to: when an average value of n RBs of the UpPTS1 of the first cell exceeds a bottom noise threshold of the UpPTS, the number of RBs is greater than the RB number threshold, or the first The average number of RBs of the RBs of the UpPTS2 of the cell that exceeds the bottom noise threshold of the UpPTS is greater than the RB number threshold, or the average value of the n RBs of the Slot1 of the first cell exceeds the regular uplink. Frame bottom noise gate The number of RBs is greater than the threshold of the number of RBs, or the average number of RBs of the RBs of the Slot2 of the first cell exceeds the threshold of the RB of the regular uplink subframe is greater than the RB threshold. The first cell has interference.

Preferably, the determining unit is configured to set the roll-off characteristic analysis to determine the number of RBs of the upper boundary and the lower boundary as m, m is a natural number greater than 0, and when n is greater than or equal to 15, the value of m is 15, when n When less than 15, m is equal to n; for determining the roll-off characteristic of the upper and lower boundaries of each symbol according to the average of n RBs of each of the four symbols of the first cell; There is a roll-off characteristic on an upper boundary or a lower boundary of at least one of the four symbols of the first cell, and the first cell is determined to be in-band power interference.

Preferably, the first symbol is any one of the four symbols of the first cell, and the determining unit is specifically configured to select an average value of the first RB of the average of the n RBs to the mth RB. The average value is the upper boundary of the first symbol, and the average value of the n-th+1 RBs of the average of the n RBs is selected to be the average value of the n-th RB as the lower boundary of the first symbol; The RB selection interval is ΔRB, and the first threshold and the second threshold are set; for starting from the average value of the mth RB of the upper boundary of the first symbol, an average value of one RB is selected every ΔRB until the selected The average value of the first RB is determined to be the first value of the difference between the two adjacent average values of the ΔRB, and the first value of the upper boundary of the first symbol is compared with the first threshold to determine The first value is greater than the first threshold is a second value, and when the second value is greater than the second threshold, determining that a roll-off characteristic exists on an upper boundary of the first symbol; The average value of the nth RB of the lower boundary of the first symbol begins, and the average of one RB is selected every ΔRB Until the average of the n-m+1th RBs is selected, respectively determining a difference between two adjacent average values of the selection interval ΔRB as a third value, respectively, the said lower boundary of the first symbol Comparing the third value with the first threshold, determining that the third value is greater than the first threshold is a fourth value, and when the fourth value is greater than the second threshold, determining the first symbol There is a roll-off characteristic at the boundary.

Preferably, the interference power data corresponding to the interference slot position of the first cell is the second interference power data, and the determining unit is further configured to: when the interference slot position of the first cell is in the second interference Before the power data presets the slot position, determining that the first cell is forward interference; and further, determining, after the interference slot position of the first cell is in the second slot power data preset slot position, determining The first cell is backward interference.

Preferably, the device further includes: a statistics unit, configured to count the number of cells in the selected area for forward interference and backward interference;

The determining unit is further configured to determine that the cell with the smallest number of cells in the forward interference and the backward interference is an interference cell.

Preferably, an embodiment of the present disclosure further provides a non-transitory computer readable storage medium storing computer program instructions for detecting when one or more processors of a device detecting cell interference execute the computer program instructions The cell interference device performs a method for detecting cell interference, and the method includes: acquiring base station measurement information data when each cell in the selected area has an interference alarm, and the base station measurement information data packet And including: interference power data and threshold data; determining, according to the interference power data of each cell and the threshold data, interference types of each of the cells, where the interference types include: forward interference and backward interference; The interfering cell is determined according to the number of cells of forward interference and backward interference in the selected area.

An embodiment of the present disclosure provides a method and apparatus for detecting cell interference, and acquiring base station measurement information data when an interference alarm exists in each cell in a selected area, where the base station measurement information data includes: interference power data and threshold data; Determining, by the interference power data of each cell, the interference type of each cell, the interference type includes: forward interference and backward interference; according to the forward interference and the backward in the selected area The interference cell is determined by the number of interfering cells. The method and device for detecting cell interference provided by the embodiments of the present disclosure analyze and locate the current network interference source, that is, the interference cell, according to the reported base station measurement information data.

DRAWINGS

In the drawings, which are not necessarily to scale, the Like reference numerals with different letter suffixes may indicate different examples of similar components. The drawings generally illustrate the various embodiments discussed herein by way of example and not limitation.

1 is a schematic flowchart 1 of a method for detecting cell interference according to an embodiment of the present disclosure;

FIG. 2 is a second schematic flowchart of a method for detecting cell interference according to an embodiment of the present disclosure;

3 is a four-symbol diagram of a time dimension provided by an embodiment of the present disclosure;

4 is a schematic structural diagram 1 of an apparatus for detecting cell interference according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram 2 of an apparatus for detecting cell interference according to an embodiment of the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure.

Embodiment 1

An embodiment of the present disclosure provides a method for detecting cell interference. As shown in FIG. 1, the method may include:

Step 101: Obtain base station measurement information data when an interference alarm exists in each cell in the selected area.

Specifically, the executor of the method for detecting cell interference provided by the embodiment of the present disclosure may be a device for detecting cell interference, that is, the device for detecting cell interference acquires base station measurement information data when each cell in the selected area has an interference alarm, where The base station measurement information data includes: interference power data and threshold data.

The interference alarm includes: an UpPTS interference alarm or a conventional uplink subframe interference alarm.

The threshold data includes: a bottom noise threshold of a conventional uplink subframe, a bottom noise threshold of an uplink pilot time slot UpPTS, and an RB number threshold.

The interference power data includes: UpPTS1, UpPTS2, Slot 1 Slot1, Slot 2 Slot2 four symbols, each symbol includes an average value of n RBs and a maximum value of n RBs, where n is a natural number.

Exemplarily, the value of n is 100, and each symbol corresponds to a maximum of 100 RBs and an average of 100 RBs, for a total of 800 power interference values.

Specifically, the system obtains the base station measurement information data outputted by the foreground base station, and each report period data includes four symbols of UpPTS1, UpPTS2, Slot1, and Slot2, and each symbol corresponds to a maximum value of 100 RBs and an average value of 100 RBs. A total of 800 interference power values. The base station measurement information data also includes three thresholds: wUlNIAlmThr, wUpPTSNIAlmThr, and ucUlNIAlmRBThr.

Step 102: Determine, according to the interference power data of each cell and the threshold data, the interference type of each cell.

The interference type includes: forward interference and backward interference.

Specifically, the first cell is set to be any one of the cells in the selected area, and the device that detects the cell interference determines the interference type of the first cell according to the interference power data of the first cell and the threshold data, including:

Step 103: Determine an interference cell according to the number of cells of forward interference and backward interference in the selected area.

Specifically, the device that detects the cell interference collects the number of cells of the forward interference and the backward interference in the selected area, and determines that the cell with the smallest number of cells in the forward interference and the backward interference is the interference cell. That is, the number of cells for forward interference and backward interference in the selected area is counted, and which type of interference includes a small number of cells, and these cells are interference sources.

The method provided by the embodiment of the present disclosure detects whether the cell in the current network is subjected to out-of-channel power interference or intra-channel interference according to the noise power data on the four symbols of UpPTS1, UpPTS2, Slot1, and Slot2 reported by the base station, thereby further performing out-of-synchronization determination. Finally, the location of the interfering cell is determined.

The method for detecting cell interference provided by the embodiment of the present disclosure can locate the cross-slot interference according to the reported base station measurement information data, analyze and locate the current network interference source, that is, the frequency and location of the interfering cell. And show it on the map.

Embodiment 2

An embodiment of the present disclosure provides a method for detecting cell interference. As shown in FIG. 2, the method may include:

Step 201: The device for detecting cell interference acquires base station measurement information data when an interference alarm exists in each cell in the selected area.

The interference alarm includes: an UpPTS interference alarm or a conventional uplink subframe interference alarm. The base station measurement information data includes: interference power data and threshold data, where the interference power data includes: UpPTS1, UpPTS2, Slot1, and Slot2, and each symbol includes an average value of n RBs and a maximum value of n RBs. , n is a natural number.

The threshold data includes: a bottom noise threshold of a conventional uplink subframe, a bottom noise threshold of an uplink pilot time slot UpPTS, and an RB number threshold. The specific functions of the three thresholds are as follows:

wUlNIAlmThr is the bottom noise threshold A of the regular uplink subframe, and is valid for slot1 and slot2.

wUpPTSNIAlmThr is the bottom noise threshold A of the UpPTS and is valid for UpPTS1 and UpPTS2.

ucUlNIAlmRBThr is the RB number threshold and is valid for both regular uplink subframes and UpPTS.

Specifically, the interference data collection is controlled by the interference alarm. The cross-slot interference alarm has three locations: GP, UpPTS, and the last regular uplink subframe of the radio frame. Interference data is collected only when there is an interference alarm in the UpPTS or the regular uplink subframe. The method provided by the embodiment of the present disclosure needs to collect data of four time dimensions, which are two symbols on the UpPTS and two time slots of the last conventional uplink subframe, and the method provided by the embodiment of the present disclosure takes the four time dimensions. They are collectively referred to as 4 symbols, as shown in Figure 3.

While ensuring the integrity of the data collection result, in order to avoid excessive redundant samples, the method provided by the embodiments of the present disclosure participates in the calculation of the interference judgment for the average value of 100 RBs and the maximum value of 100 RBs for each symbol. .

Step 202: The device for detecting cell interference determines the interference type of each cell according to the interference power data of each cell and the threshold data.

Specifically, the interference type includes: the forward interference and the backward interference selection area may include multiple cells, and each method determines the interference type according to the base station measurement information data, and sets the first cell to be in the selected area. For any cell, the first cell is taken as an example to describe the interference type according to the interference power data and the threshold data, as described below.

Specifically, determining the interference type of the first cell according to the interference power data of the first cell and the threshold data, including:

Determining, according to the first cell interference power data and the threshold data, whether the first cell is stored In the interference, including:

Specifically, whether the cell is interfered may be determined according to an average value of 100 RBs reported by each symbol and three thresholds reported. Comparing the average value of 100 RBs on the four symbols with the noise floor threshold A, respectively, counting the number of RBs exceeding the noise floor threshold A, and comparing with the reported RB number threshold, if it is exceeded, it is determined to be interfered, otherwise There is no interference.

The determining, according to the roll-off characteristic of the interference power data of the first cell, whether the first cell is an in-band power interference, specifically includes:

Specifically, it is described by using any one of the four symbols of the first cell, and if the first symbol is any one of the four symbols of the first cell, determining the roll-off of the upper boundary and the lower boundary of the first symbol Features, which can include:

Starting from the average value of the nth RB of the lower boundary of the first symbol, an average value of one RB is selected every ΔRB until the average value of the n-m+1 RBs is selected, and the selection interval is determined as The difference between the two adjacent average values of the ΔRB is a third value, respectively comparing the third value of the lower boundary of the first symbol with the first threshold, and determining that the third value is greater than the first threshold The number is a fourth value, when the fourth value is greater than In the second threshold, it is determined that there is a roll-off characteristic of the lower boundary of the first symbol.

Specifically, determining the roll-off characteristic of the upper and lower boundaries of each symbol, if there is a roll-off characteristic of the upper boundary or the lower boundary of one symbol, it is determined to be subjected to in-band power interference, otherwise it is determined to be an out-of-band power interference, and the out-of-band interference is determined. Does not participate in subsequent out-of-synchronization decisions. In-band or out-of-band interference is judged by the roll-off characteristic. The method of determining whether there is a roll-off characteristic on the upper or lower boundary of a symbol is as follows:

For the judgment of each cell interference, it is judged by the average value of 400 of the interference power data, and the average value of the 400 RBs is divided into four groups, and each average value represents data of one time, which can be understood as 400 The average value of RB is divided into four positions according to the time position of the data, and each position is 20M bandwidth, including the average value of 100 RBs, that is, 100 bottom noise values. The roll-off characteristics of each position are judged to analyze the upper and lower boundaries. Each symbol includes the average of the collected 100 RBs, and the four positions correspond to four symbols, that is, the roll-off characteristics of the upper and lower boundaries of the four symbols are determined.

Configure the upper and lower bounds to analyze the selected RB number threshold TRBNum. The upper boundary selects RB as the pre-TRBNum RBs; the lower boundary selects the RB as the post-TRBNum RBs.

The number of RBs selected by the roll-off feature is configurable, and the maximum number of RB/2s corresponding to the cell bandwidth is, for example, 20M bandwidth. If configured as 100 RBs, the first 50 and the last 50. If the configuration is odd, the back is calculated as an even number.

It should be noted that, in the embodiment of the present disclosure, the value of n can be referred to the following Table 1. For example, the channel bandwidth is 20 MHz, and the value of n is 100, that is, 100 RBs.

The specific algorithm formula is described as follows:

N _RB is the number of RBs used for judging,

among them,

Indicates the total number of uplink RBs.

Table 1

RB _start is the starting position of the RB used for judging,

Among them, Pos indicates whether it is currently determining low frequency (Pos=Low) or high frequency (Pos=High) interference.

ΔRB is the RB interval size, so that ΔRB=3.

TH1=0.25dB, which is the threshold 1, which is the first threshold;

Is the threshold 2, the second threshold;

ΔNI(0:L _NI -1)=NI(RB _start :RB _start +N _RB -ΔRB-1)-NI(RB _start +ΔRB:RB _start +N _RB -1)

Where ΔNI is the difference of the NI interval ΔRB, and L _NI =N _RB -ΔRB=12 represents the length of ΔNI.

When Pos=Low, for all 0 ≤ i ≤ L _NI -1, where the number of ΔNI(i)>TH1 is satisfied as K, if K>TH2, there is a roll-off characteristic, that is, there is a low band Interference; otherwise, no roll-off characteristics.

When Pos=High, for all 0 ≤ i ≤ L _NI -1, where the number of -ΔNI(i)>TH1 is satisfied as K, if K>TH2, there is a roll-off characteristic, that is, there is a high frequency. Out-of-band interference; otherwise, no roll-off characteristics.

The determining the interference type of the first cell according to the location of the interference slot of the first cell may include:

Specifically, for a TDD system with a simultaneous gap ratio, the out-of-step includes two cases: lead-out and step-out, that is, forward interference and backward interference.

Step 203: The device that detects the cell interference collects the number of cells of the forward interference and the backward interference in the selected area, and determines that the cell with the smallest number of cells in the forward interference and the backward interference is the interference cell.

Specifically, the number of cells in the forward and backward interference in the selected area is counted, and the type of the cell included in the interference type is small, and these cells are interference sources.

Embodiment 3

An embodiment of the present disclosure provides an apparatus 1 for detecting cell interference. As shown in FIG. 4, the apparatus includes: an obtaining unit 10, and a determining unit 11, where

The acquiring unit 10 is configured to acquire base station measurement information data when an interference alarm exists in each cell in the selected area, where the base station measurement information data includes: interference power data and threshold data;

The determining unit 11 determines, according to the interference power data of each of the cells and the threshold data, an interference type of each of the cells, where the interference type includes: forward interference and backward interference; The interfering cell is determined according to the number of cells of forward interference and backward interference in the selected area.

Further, the determining unit 11 is specifically configured to determine, according to the first cell interference power data and the threshold data, whether the first cell has interference, and further, when determining that the first cell has interference, Determining, according to the roll-off characteristic of the interference power data of the first cell, whether the first cell is in-band power interference; and further, when determining that the first cell is in-band power interference, filtering the first The repeated interference power data in the cell is selected, and the interference power data closest to the current time in the interference power data of the first cell is selected as the first interference power data, and the time when the current interference time is closest to the first interference power data is determined. The slot position is an interference slot position of the first cell; and is further configured to determine, according to the interference slot position of the first cell, The type of interference of the first cell.

Further, the threshold data includes: a bottom noise threshold of a conventional uplink subframe, a bottom noise threshold of an uplink pilot time slot UpPTS, and a threshold of an RB number;

Further, the determining unit 11 is specifically configured to: when the average value of the n RBs of the UpPTS1 of the first cell exceeds the bottom noise threshold of the UpPTS, the number of RBs is greater than the RB number threshold, or the The average number of RBs of the RBs of the UpPTS2 of the first cell exceeds the threshold of the RB of the UpPTS, or the average of the n RBs of the Slot1 of the first cell exceeds the regular uplink. The number of RBs of the bottom noise threshold of the subframe is greater than the threshold of the RB number, or the average number of RBs of the n RBs of the Slot 2 of the first cell exceeds the bottom noise threshold of the conventional uplink subframe is greater than the number of RBs. The RB number threshold determines that there is interference in the first cell.

Further, the determining unit 11 is specifically configured to set the number of RBs selected by the upper boundary and the lower boundary of the roll-off characteristic analysis to be m, m is a natural number greater than 0, and when n is greater than or equal to 15, the value of m is 15, when When n is less than 15, m is equal to n; and is used for determining a roll-off characteristic of each of the upper and lower boundaries of each symbol according to an average value of n RBs of each of the four symbols of the first cell; A roll-off characteristic exists on an upper boundary or a lower boundary of at least one of the four symbols of the first cell, and determining that the first cell is in-band power interference.

Further, the first symbol is any one of the four symbols of the first cell, and the determining unit 11 is specifically configured to select an average value of the first RB of the average of the n RBs to the mth RB. The average value of the first symbol is the upper boundary of the first symbol, and the average value of the n-m+1 RBs of the average of the n RBs is selected to be the lower boundary of the first symbol; Setting an RB selection interval to ΔRB, setting a first threshold and a second threshold; for starting from an average value of the mth RB of the upper boundary of the first symbol, selecting an average value of one RB every ΔRB until the selected Determining an average value of the first RB, respectively determining a difference between two adjacent average values of the selection interval ΔRB as a first value, respectively comparing the first value of the upper boundary of the first symbol with the first threshold, Determining that the number of the first value is greater than the first threshold is a second value, and when the second value is greater than the second threshold, determining that a roll-off characteristic exists on an upper boundary of the first symbol; The average value of the nth RB of the lower boundary of the first symbol starts, and one RB is selected every ΔRB Mean, until the average of the n-m+1th RBs is selected, and the difference between the adjacent two average values of the selection interval ΔRB is determined as a third value, respectively, and the lower boundary of the first symbol is respectively Comparing the third value with the first threshold, determining that the third value is greater than the first threshold is a fourth value, and when the fourth value is greater than the second threshold, determining the first symbol There is a roll-off characteristic at the lower boundary.

Further, the interference power data corresponding to the interference slot position of the first cell is the second interference power data, and the determining unit 11 is further configured to: when the interference slot position of the first cell is in the second Before the interference power data presets the slot position, determining that the first cell is forward interference; and also when the first cell is dry The interference slot position is determined to be backward interference after the second interference power data preset slot position.

Further, as shown in FIG. 5, the apparatus further includes: a statistics unit 12, configured to count the number of cells in the selected area for forward interference and backward interference;

The determining unit 11 is further configured to determine that the cell with the smallest number of cells in the forward interference and the backward interference is an interference cell.

Further, the interference alarm includes: an UpPTS interference alarm or a regular uplink subframe interference alarm.

Specifically, the description of the method for detecting cell interference provided by the embodiment of the present disclosure may be referred to the description of the method for detecting cell interference in the first embodiment and the second embodiment, and details are not described herein again.

The device for detecting cell interference according to the embodiment of the present disclosure can locate the cross-slot interference according to the reported base station measurement information data, analyze and locate the current network interference source, that is, the frequency and location of the interference cell. And show it on the map.

Those skilled in the art will appreciate that embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure 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 and optical storage, etc.) including computer usable program code.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

For example, an embodiment of the present disclosure provides a non-transitory computer readable storage medium storing computer program instructions for detecting cell interference when one or more processors of a device detecting cell interference execute the computer program instructions The apparatus performs a method of detecting cell interference, the method comprising: acquiring a selected area Each of the cells in the cell has the base station measurement information data when the interference alarm is present, and the base station measurement information data includes: interference power data and threshold data; and determining the each according to the interference power data of each of the cells and the threshold data, respectively. The interference type of a cell, the interference type includes: forward interference and backward interference; and the interference cell is determined according to the number of cells of forward interference and backward interference in the selected area.

Industrial applicability

The present disclosure relates to a cell interference detection technology in the field of mobile communications. Starting from an existing actual network, the present network interference source, that is, an interference cell, is analyzed and located according to the reported base station measurement information data.

The above description is only for the preferred embodiments of the present disclosure, and is not intended to limit the scope of the disclosure.

Claims

A method for detecting cell interference includes:

Obtaining base station measurement information data when an interference alarm exists in each cell in the selected area, where the base station measurement information data includes: interference power data and threshold data;

Determining an interference type of each of the cells according to the interference power data of each of the cells and the threshold data, where the interference type includes: forward interference and backward interference;

The interfering cell is determined according to the number of cells of forward interference and backward interference in the selected area.
The method according to claim 1, wherein the first cell is any one of the cells in the selected area, and the interference type of the first cell is determined according to the interference power data of the first cell and the threshold data. include:

Determining whether the first cell has interference according to the first cell interference power data and the threshold data;

Determining, according to the roll-off characteristic of the interference power data of the first cell, whether the first cell is an in-band power interference, when determining that the first cell has interference;

When it is determined that the first cell is in-band power interference, filtering the repeated interference power data in the first cell, and selecting interference power data closest to the current time in the interference power data of the first cell is Determining, by the interference power data, a slot position that is closest to the current time in the first interference power data is an interference slot position of the first cell;

Determining an interference type of the first cell according to an interference slot position of the first cell.
The method according to claim 1 or 2, wherein

The threshold data includes: a bottom noise threshold of a conventional uplink subframe, a bottom noise threshold of an uplink pilot time slot UpPTS, and a threshold of an RB number;

The interference power data includes: UpPTS1, UpPTS2, time slot 1Slot1, and time slot 2Slot2, and each symbol includes an average value of n RBs and a maximum value of n RBs, where n is a natural number.
The method according to claim 3, wherein the determining whether the first cell has interference according to the first cell interference power data and the threshold data comprises:

When the average value of the n RBs of the UpPTS1 of the first cell exceeds the bottom noise threshold of the UpPTS is greater than the RB number threshold, or the average value of the n RBs of the UpPTS2 of the first cell exceeds The number of RBs of the bottom noise threshold of the UpPTS is greater than the threshold of the number of RBs, or the average number of RBs of the n RBs of the Slot1 of the first cell exceeds the bottom noise threshold of the conventional uplink subframe by more than Determining the RB number threshold, or the average number of RBs of the RBs of the Slot 2 of the first cell exceeding the bottom noise threshold of the regular uplink subframe is greater than the RB number threshold, and determining that the first cell has interference .
The method according to claim 3, wherein the determining, according to a roll-off characteristic of the interference power data of the first cell, whether the first cell is in-band power interference comprises:

Set the roll-off characteristic to analyze the number of RBs selected by the upper and lower boundaries as m, and m is a natural number greater than 0. When n is greater than or equal to 15, the value of m is 15, and when n is less than 15, m is equal to n;

Determining a roll-off characteristic of an upper boundary and a lower boundary of each symbol according to an average value of n RBs of each of the four symbols of the first cell;

When there is a roll-off characteristic on an upper boundary or a lower boundary of at least one of the four symbols of the first cell, determining that the first cell is in-band power interference.
The method according to claim 5, wherein the first symbol is any one of four symbols of the first cell, and determining a roll-off characteristic of the upper boundary and the lower boundary of the first symbol comprises:

The average value of the first RB of the average of the n RBs is selected to be the average of the mth RBs as the upper boundary of the first symbol, and the average of the n-m+1 RBs of the average of the n RBs is selected. The average value of the value to the nth RB is the lower boundary of the first symbol;

Setting an RB selection interval to ΔRB, setting a first threshold and a second threshold;

Starting from the average value of the mth RB of the upper boundary of the first symbol, an average value of one RB is selected every ΔRB until the average value of the first RB is selected, and the adjacent interval of the selected interval is determined as ΔRB The difference between the two average values is a first value, and the first value of the upper boundary of the first symbol is compared with the first threshold, and the number of the first value is greater than the first threshold is determined to be the second a value, when the second value is greater than the second threshold, determining that a roll-off characteristic exists on an upper boundary of the first symbol;

Starting from the average value of the nth RB of the lower boundary of the first symbol, an average value of one RB is selected every ΔRB until the average value of the n-m+1 RBs is selected, and the selection interval is determined as The difference between the two adjacent average values of the ΔRB is a third value, respectively comparing the third value of the lower boundary of the first symbol with the first threshold, and determining that the third value is greater than the first threshold The number is a fourth value, and when the fourth value is greater than the second threshold, determining that there is a roll-off characteristic of the lower boundary of the first symbol.
The method according to claim 2, wherein the determining the interference type of the first cell according to the interference slot position of the first cell comprises:

The interference power data corresponding to the interference slot position of the first cell is the second interference power data;

Determining that the first cell is forward interference before the interference slot position of the first cell is before the second interference power data preset time slot position;

After the interference slot position of the first cell is after the second interference power data preset slot position, determining that the first cell is backward interference.
The method according to claim 7, wherein the determining the interference cell according to the number of cells of forward interference and backward interference in the selected area, including:

And counting the number of cells in the forward and backward interferences in the selected area, and determining that the cell with the smallest number of cells in the forward interference and the backward interference is an interference cell.
The method according to claim 1, wherein the interference alarm comprises: an UpPTS interference alarm or a regular uplink subframe interference alarm.
An apparatus for detecting cell interference, comprising: an acquiring unit, a determining unit, where

The acquiring unit is configured to acquire base station measurement information data when an interference alarm exists in each cell in the selected area, where the base station measurement information data includes: interference power data and threshold data;

The determining unit is configured to determine, according to the interference power data of each of the cells and the threshold data, an interference type of each of the cells, where the interference type includes: forward interference and backward interference; The interference cell is determined according to the number of cells of forward interference and backward interference in the selected area.
The apparatus according to claim 10, wherein the determining unit is configured to determine whether the first cell has interference according to the first cell interference power data and the threshold data; and further configured to determine the When there is interference in a cell, determining whether the first cell is in-band power interference according to a roll-off characteristic of the interference power data of the first cell; and setting, when determining that the first cell is in-band power interference, Filtering the repeated interference power data in the first cell, and selecting the interference power data that is closest to the current time in the interference power data of the first cell as the first interference power data, and determining the first interference power data. The slot position closest to the current time is the interference slot position of the first cell; and is further configured to determine the interference type of the first cell according to the interference slot position of the first cell.
The apparatus according to claim 10 or 11, wherein

The threshold data includes: a bottom noise threshold of a conventional uplink subframe, a bottom noise threshold of an uplink pilot time slot UpPTS, and a threshold of an RB number;

The interference power data includes four symbols: UpPTS1, UpPTS2, Slot1, and Slot2, and each symbol includes an average value of n RBs and a maximum value of n RBs, where n is a natural number.
The apparatus according to claim 12, wherein the determining unit is configured to: when an average value of n RBs of the UpPTS1 of the first cell exceeds a bottom noise threshold of the UpPTS, the number of RBs is greater than the number of RBs a threshold, or an average of n RBs of the UpPTS2 of the first cell exceeding a bottom noise threshold of the UpPTS is greater than the RB number threshold, or an average of n RBs of the Slot1 of the first cell The number of RBs whose value exceeds the bottom noise threshold of the regular uplink subframe is greater than the threshold of the RB number, or the average value of the n RBs of the slot 2 of the first cell exceeds the bottom noise threshold of the conventional uplink subframe. The number of RBs is greater than the threshold of the number of RBs, and it is determined that the first cell has interference.
The apparatus according to claim 12, wherein said determining unit is configured to set the roll-off characteristic analysis upper and lower boundary to select the number of RBs to be m, m is a natural number greater than 0, and when n is greater than or equal to 15, m The value of 15 is 15. When n is less than 15, m is equal to n; and is set to determine the roll of the upper and lower boundaries of each symbol according to the average of n RBs of each of the four symbols of the first cell, respectively. a drop characteristic; configured to have a roll-off characteristic when an upper boundary or a lower boundary of at least one of the four symbols of the first cell is determined to determine that the first cell is in-band power interference.
The apparatus according to claim 14, wherein the first symbol is any one of four symbols of the first cell, and the determining unit is set to select an average of the first RB of the average of n RBs The average value of the value to the mth RB is the upper boundary of the first symbol, and the average value of the n-th+1 RBs of the average of the n RBs is selected to the average of the nth RB as the first Symbol lower boundary; set to set RB selection The interval is ΔRB, setting a first threshold and a second threshold; setting is to start from an average value of the mth RB of the upper boundary of the first symbol, and selecting an average value of one RB every ΔRB until the first is selected An average value of the RBs, respectively determining a difference between two adjacent average values of the selected interval ΔRB as a first value, respectively comparing the first value of the upper boundary of the first symbol with a first threshold, determining the And determining, by the first value, that the number of the first threshold is greater than the second threshold, and when the second value is greater than the second threshold, determining that a roll-off characteristic exists on an upper boundary of the first symbol; The average value of the nth RB of the lower boundary of a symbol starts, and the average value of one RB is selected every ΔRB until the average of the n-m+1 RBs is selected, and the adjacent interval of the selected interval is determined as ΔRB. The difference between the two average values is a third value, respectively comparing the third value of the lower boundary of the first symbol with the first threshold, and determining that the third value is greater than the number of the first threshold is fourth a value, when the fourth value is greater than the second threshold, The presence of the first roll-off characteristics at symbol boundaries.
The apparatus according to claim 11, wherein the interference power data corresponding to the interference slot position of the first cell is the second interference power data; the determining unit is further configured to be when the interference of the first cell The slot position determines that the first cell is forward interference before the second interference power data preset slot position; and is further configured to: when the interference slot position of the first cell is in the second interference power data After the slot position is preset, the first cell is determined to be backward interference.
The apparatus according to claim 16, wherein the apparatus further comprises: a statistics unit configured to count the number of cells of forward interference and backward interference in the selected area;

The determining unit is further configured to determine that the cell with the smallest number of cells in the forward interference and the backward interference is an interference cell.
The apparatus according to claim 10, wherein the interference alarm comprises: an UpPTS interference alarm or a regular uplink subframe interference alarm.
A non-transitory computer readable storage medium storing computer program instructions for performing a detection by a device detecting cell interference when one or more processors of a device detecting cell interference execute the computer program instructions A method for cell interference, the method comprising:

Obtaining base station measurement information data when an interference alarm exists in each cell in the selected area, where the base station measurement information data includes: interference power data and threshold data;

Determining an interference type of each of the cells according to the interference power data of each of the cells and the threshold data, where the interference type includes: forward interference and backward interference;

The interfering cell is determined according to the number of cells of forward interference and backward interference in the selected area.