CN104244301A - Method and system for positioning LTE network problem on basis of wireless indexes - Google Patents

Abstract

The embodiment of the invention discloses a method and system for locating LTE network problems based on wireless indicators. The method includes: obtaining the average throughput rate per physical resource block (PRB) of the cell and the average PRB occupancy rate of the cell; determining the state of the average throughput rate per PRB of the cell according to a preset first threshold value ; Determine the state of the average PRB occupancy rate of the cell according to the preset second threshold value; according to the state of the average throughput per PRB of the cell and the average PRB occupancy rate of the cell The state determines the scope of the problem to be checked in the LTE network, and locates the problem in the LTE network within the scope of the problem to be checked. The application of the embodiments of the present invention can improve the focus of locating LTE network problems, and then quickly locate network problems.

Description

Method and system for locating LTE network problems based on wireless indicators

technical field

The present application relates to the field of communication technologies, and in particular to a method and system for locating LTE network problems based on wireless indicators.

Background technique

In the early stage of Long Term Evolution (LTE) network construction, the method of using wireless indicators to locate network problems is not yet mature. At present, the network is mainly tested comprehensively by means of drive test, frequency sweep and fixed-point test, and the performance obtained by analyzing the test Index data to determine whether the network is normal and locate LTE network problems.

The current method for locating LTE network problems has the following defects:

1. The workload is huge, and it takes time and effort to test with test equipment. Moreover, if it is necessary to reflect the network situation of the entire network, it is necessary to traverse a large number of roads to collect drive test signals, and then conduct a comprehensive evaluation after a large number of performance tests; 2. Random sampling The results obtained by the existing scheme may be affected by the accuracy of the performance of the detection equipment itself, and may also be affected by factors such as the test time period. The most important thing is that the indicators on the road cannot accurately represent the indicators of the community; 3. Positioning The focus of LTE network problems is poor. It often requires a lot of testing work, analyzing a large number of performance indicators, and eliminating all possible problems one by one before finally locating the problem.

It can be seen that the existing methods for locating LTE network problems have the defects of heavy workload, strong randomness, and poor focus, so problems cannot be quickly located, and it is difficult to use them as the main means for daily network problem discovery.

Contents of the invention

In view of this, the present invention provides a method and system for locating LTE network problems based on wireless indicators, which can improve the focus of locating LTE network problems, and then quickly locate network problems.

A method for locating LTE network problems based on wireless indicators, the method comprising:

Obtain the average throughput rate of each physical resource block (PRB) of the cell and the average occupancy rate of the PRB of the cell;

Determine whether the average throughput per PRB of the cell is higher than a first threshold, if yes, determine that the average throughput per PRB of the cell is in the first state, otherwise, determine that the average throughput per PRB of the cell is in the first state second state;

Determine whether the average PRB occupancy rate of the cell is higher than a second threshold value, if yes, determine that the average PRB occupancy rate of the cell is in the third state, otherwise, determine that the average occupancy rate of the cell is in the fourth state;

According to the state of the average throughput per PRB of the cell and the state of the average PRB occupancy of the cell, determine the scope of the problem to be checked in the LTE network, and locate the LTE network within the range of the problem to be checked question.

A system for locating LTE network problems based on wireless indicators, the system includes an indicator acquisition module, a state determination module, and a problem range determination module to be checked;

The index acquisition module is used to acquire the average throughput rate of each physical resource block (PRB) of the cell and the average occupancy rate of the PRB of the cell;

The state determination module is configured to determine whether the average throughput per PRB of the cell is higher than a first threshold, if yes, determine that the average throughput per PRB of the cell is in the first state, otherwise, determine the The average throughput rate per PRB of the cell is in the second state, determine whether the average PRB occupancy rate of the cell is higher than the second threshold value, if yes, determine that the average PRB occupancy rate of the cell is in the third state, otherwise, determine The average occupancy rate of the cell is in a fourth state;

The module for determining the range of problems to be checked is configured to determine the range of problems to be checked in the LTE network according to the state of the average throughput per PRB of the cell and the state of the average PRB occupancy rate of the cell, such that The LTE network problem can be located within the scope of the problem to be checked.

It can be seen from the above technical solutions that in the embodiment of the present invention, the average throughput rate per PRB and the average occupancy rate of PRBs of a cell are used as the main indicators for locating network problems, and the average throughput rate per PRB and average occupancy rate of PRBs of a cell are first obtained, and then determined The state of the average throughput per PRB of the cell and the state of the average PRB occupancy of the cell, and finally according to the state of the average throughput per PRB of the cell and the average PRB occupancy of the cell The state of the rate determines the range of problems to be checked in the LTE network, so that the range of problems to be checked can be narrowed from all possible problems in the prior art to a certain range, in other words, the range of problems that may exist in the LTE network can be focused , because the range of problems to be checked is narrowed according to the average throughput rate per PRB and the average occupancy rate of PRBs of the cell, that is, the range of problems to be checked is narrowed. Therefore, within the range of problems to be checked after focusing processing, the Locate LTE network problems accurately and improve the speed of locating LTE network problems.

Description of drawings

FIG. 1 is a flowchart of a method for locating LTE network problems based on wireless indicators provided by an embodiment of the present invention.

Fig. 2 is a schematic diagram of determining the range of problems to be checked in an LTE network according to a main index provided by an embodiment of the present invention.

FIG. 3 is a flow chart of precisely locating LTE network problems within the [positive, positive] quadrant shown in FIG. 2 proposed by an embodiment of the present invention.

FIG. 4 is a flow chart of precisely locating LTE network problems within the [positive, negative] quadrants shown in FIG. 2 proposed by an embodiment of the present invention.

FIG. 5 is a flow chart of precisely locating LTE network problems within the [negative, positive] quadrant shown in FIG. 2 proposed by an embodiment of the present invention.

FIG. 6 is a flow chart of precisely locating LTE network problems within the [negative, negative] quadrant shown in FIG. 2 proposed by an embodiment of the present invention.

FIG. 7 is a schematic diagram of system composition for locating LTE network problems based on wireless indicators provided by an embodiment of the present invention.

Detailed ways

FIG. 1 is a flowchart of a method for locating LTE network problems based on wireless indicators provided by an embodiment of the present invention.

As shown in Figure 1, the process includes:

Step 101, obtaining the average throughput rate per physical resource block (PRB) of a cell and the average occupancy rate of PRBs of the cell.

In this step, the cell-level average throughput rate per PRB and the average PRB occupancy rate of the cell to be checked may be obtained from the network management device.

Step 102: Determine the state of the average throughput per PRB of the cell according to a preset first threshold value, and determine the state of the average PRB occupancy rate of the cell according to a preset second threshold value.

Specifically, in this step, it is determined whether the average throughput per PRB of the cell is higher than the first threshold value, if yes, determine that the average throughput per PRB of the cell is in the first state, otherwise, determine that the average throughput of the cell is in the first state The average throughput per PRB is in the second state.

Determine whether the average PRB occupancy rate of the cell is higher than a second threshold value, if yes, determine that the average PRB occupancy rate of the cell is in the third state, otherwise, determine that the average PRB occupancy rate of the cell is in the fourth state.

Wherein, the first threshold may be determined according to the historical record value of the average throughput per PRB of the cell and/or the average value of the average throughput per PRB in the network, and the second threshold may be determined according to the The historical record value of the average PRB occupancy rate of the cell and/or the average value of the average PRB occupancy rate in the network are determined.

Step 103, according to the state of the average throughput per PRB of the cell and the state of the average PRB occupancy of the cell, determine the scope of the problem to be checked in the LTE network, within the range of the problem to be checked Locate LTE network problems.

Through analysis and experience, the applicant found that the average throughput rate per PRB of a cell can reflect the network coverage and network interference, and the average PRB occupancy rate of a cell can reflect the software and hardware functions of the base station and the network load. Based on the above analysis and experience , the method shown in Figure 1 obtains the average throughput rate per PRB of the cell and the average PRB occupancy rate of the cell, and quantitatively analyzes the average throughput rate of each PRB of the cell and the average PRB occupancy rate of the cell, and the average throughput rate of each PRB of the cell The state of the state and the state of the average PRB occupancy rate of the cell are obtained by different state combinations. According to the state combination, the range of problems to be checked in the LTE network is focused, thereby narrowing the range of problems to be checked in the LTE network, thereby improving positioning The speed of the LTE network issue.

For ease of description, the two indicators used to focus on the range of problems to be checked in the LTE network, that is, the average throughput rate per PRB of the cell and the average PRB occupancy rate of the cell, are called main indicators. Please refer to Figure 2 for the specific method of the main indicator to determine the range of problems to be checked in the LTE network.

Fig. 2 is a schematic diagram of determining the range of problems to be checked in an LTE network according to a main index provided by an embodiment of the present invention.

As shown in Figure 2, in this schematic diagram, the abscissa is the average throughput rate per PRB of the cell, and the ordinate is the average PRB occupancy rate of the cell, where a positive value indicates that the corresponding index is greater than the corresponding preset threshold value, a negative value indicates that the corresponding index is less than the corresponding preset threshold value, in other words, the [positive, positive] quadrant in Figure 2 corresponds to the average throughput per PRB of the cell is in the first state, and the PRB of the cell is in the first state. The average occupancy rate is in the third state, the [positive, negative] quadrant corresponds to the cell’s average throughput per PRB in the first state, and the cell’s PRB average occupancy rate is in the fourth state, and the [negative, positive] quadrant corresponds to the cell’s The average throughput per PRB is in the second state, and the average PRB occupancy of the cell is in the third state, and the [negative, negative] quadrant corresponds to the average throughput per PRB of the cell in the second state, and the average PRB occupancy of the cell is in the second state fourth state.

In the [Positive, Positive] quadrant, that is, when the average throughput per PRB of the cell is in the first state and the average PRB occupancy rate of the cell is in the third state, the embodiment of the present invention proposes that the waiting time of the LTE network The range of problems to check includes: base station scheduling problems and/or network load problems.

In the [positive, negative] quadrant, that is, when the average throughput rate per PRB of the cell is in the first state and the average PRB occupancy rate of the cell is in the fourth state, the embodiment of the present invention proposes that the waiting time of the LTE network The scope of checking problems includes: base station hardware failure problems and/or base station scheduling problems.

In the [negative, positive] quadrant, that is, when the average throughput rate per PRB of the cell is in the second state and the average PRB occupancy rate of the cell is in the third state, the embodiment of the present invention proposes that the waiting time of the LTE network The range of problems to be checked includes: network coverage problems, network interference problems, terminal problems and/or base station scheduling problems.

In the [negative, negative] quadrant, that is, when the average throughput rate per PRB of the cell is in the second state and the average PRB occupancy rate of the cell is in the fourth state, the embodiment of the present invention proposes that the waiting time of the LTE network The range of problems to check includes: network coverage problems, network interference problems, base station hardware failure problems and/or base station distribution problems.

After determining the range of LTE network problems to be checked according to the main indicators, the range of LTE network problems to be checked can be directly output, so that network operation and maintenance personnel can locate LTE network problems within the range of LTE network problems to be checked.

The embodiment of the present invention also proposes that, in addition to focusing on the range of problems to be checked in the LTE network according to the state of the average throughput per PRB of the cell and the state of the average PRB occupancy, it is also possible to further obtain Other auxiliary indicators of the problem. According to the auxiliary indicators, the LTE network problem is located within the scope of the problem to be checked.

Among them, the auxiliary indicators used to accurately locate LTE network problems may include two types of indicators, one is KPI indicators used to measure network performance, such as: the number of simultaneous online users in a cell, the Evolved Packet System radio access bearer (Evolved Packet System Radio Access Bearer, E-RAB) establishment success rate, and/or the throughput of adjacent cells of the cell, etc.; the other type is the information in the network measurement report (MR), such as: signal-to-noise ratio (SINR) in MR Value, Reference Signal Received Power (Reference Signal Received Power, RSRP) value, uplink transmit power information and/or Cell Physical Identity (PCI) value of the cell, etc.

Regarding the timing of obtaining the main indicators and auxiliary indicators, there are many implementation methods, as long as the corresponding indicators are available when needed, for example, before focusing on the scope of the LTE network to be checked, the main indicators and all possible All the auxiliary indicators used can be obtained, or after focusing on the range of LTE network problems to be checked, according to the range of LTE network problems to be checked, only the auxiliary indicators needed to accurately locate LTE network problems within this range can be obtained.

Regarding the range of problems to be checked in a specific LTE network, which auxiliary indicators need to be used to accurately locate the problem in the LTE network, as an example, for the range of problems to be checked in the LTE network shown in Figure 2, the embodiment of the present invention proposes The following implementations:

In the [Positive, Positive] quadrant, that is, when the average throughput per PRB of the cell is in the first state and the average PRB occupancy rate of the cell is in the third state, the auxiliary indicators for locating LTE network problems can be Including: the number of simultaneous online users of the cell, the E-RAB establishment success rate of the cell, and/or the throughput of neighboring cells of the cell.

In the [positive, negative] quadrant, that is, when the average throughput per PRB of the cell is in the first state, and the average PRB occupancy rate of the cell is in the fourth state, the auxiliary indicators for locating LTE network problems can be Including: the historical record value of the average PRB occupancy rate of the cell and/or the E-RAB establishment success rate of the cell.

In the [negative, positive] quadrant, that is, when the average throughput per PRB of the cell is in the second state and the average PRB occupancy rate of the cell is in the third state, the auxiliary index for locating LTE network problems can be Including: a signal-to-noise ratio (SINR) value, a reference signal received power (RSRP) value and/or a cell physical identity (PCI) value in the measurement report (MR) of the cell.

In the [negative, negative] quadrant, that is, when the average throughput per PRB of the cell is in the second state and the average PRB occupancy rate of the cell is in the fourth state, the auxiliary index for locating LTE network problems can be Including: uplink transmit power information, RSRP value and/or PCI value in the MR of the cell.

When accurately locating LTE network problems within the scope of LTE network problems to be checked according to various auxiliary indicators, the embodiment of the present invention proposes to output the auxiliary indicators required to accurately locate LTE network problems within the scope of current LTE network problems to be checked, so that the network Operation and maintenance personnel can accurately locate LTE network problems within the range of problems to be checked in the LTE network according to the auxiliary indicators.

Preferably, the embodiment of the present invention also proposes that the system for locating LTE network problems can accurately locate LTE network problems within the range of LTE network problems to be checked according to the auxiliary indicators, and output precise positioning results, that is, output precisely positioned LTE network problems. Internet problem.

Regarding how to accurately locate network problems within the scope of LTE network problems according to various auxiliary indicators, there are various implementation methods. For example, a table corresponding to the value range of each indicator and LTE network problems can be made, and the LTE network can be accurately located by querying the table. question.

Preferably, taking the scope of each problem to be checked shown in FIG. 2 as an example, the embodiment of the present invention can further improve the range of problems to be checked in the LTE network by optimizing the judgment order of each problem within the range of problems to be checked in the LTE network. Accurately locate the speed of LTE network problems, please refer to Figure 3-Figure 6 for details.

FIG. 3 is a flow chart of precisely locating LTE network problems within the [positive, positive] quadrant shown in FIG. 2 proposed by an embodiment of the present invention.

As shown in Figure 3, the process includes:

Step 301 , judging whether the number of simultaneous online users in the cell is greater than a preset value, if yes, execute step 302 , otherwise, execute step 303 .

Step 302, judging whether the E-RAB establishment success rate of the cell is greater than a preset value, if the E-RAB establishment success rate of the cell is greater than the preset value, it is determined that the network is normal; otherwise, it is determined that there is a network load problem.

In this step, when it is determined that there is a network load problem, step 304 may be further performed.

Step 303, judging whether the E-RAB establishment success rate of the subdistrict is greater than a preset value, if the E-RAB establishment success rate of the subdistrict is greater than a preset value, determine that the network is normal, otherwise, determine that there is a base station scheduling problem, and end this process.

The base station scheduling problem in this step is generally a wireless resource scheduling problem.

In step 302 and step 303, the preset value used for comparison with the E-RAB establishment success rate may be the same or different, and may be specifically set according to the characteristics and/or performance requirements of the LTE network.

Step 304, determine whether the throughput of each neighboring cell of the cell is greater than a preset value, and determine whether the throughput of a predetermined proportion of neighboring cells is greater than a preset value, if yes, determine that the network needs to be expanded, otherwise, determine that the network needs to be expanded. Adjust the load balancing parameters between cells, and end this process.

After accurately locating LTE network problems, corresponding solutions can be taken according to the specific problems existing in the LTE network. Adjust load balancing parameters, etc.

FIG. 4 is a flow chart of precisely locating LTE network problems within the [positive, negative] quadrants shown in FIG. 2 proposed by an embodiment of the present invention.

As shown in Figure 4, the process includes:

Step 401: Determine the historical standard value of the average PRB occupancy rate of the cell according to each historical record value of the average PRB occupancy rate of the cell.

In this step, the historical standard value of the PRB average occupancy rate of the cell may be the average value of each historical record value of the PRB average occupancy rate of the cell, or a value obtained by other methods, for example, higher (can be set Set a threshold) average value of historical record values, or lower (you can also set a threshold) average value of historical record values, or remove the average value of each historical record value after removing the first N highest values and the first M lowest values value, or the weighted value of each historical record value, etc., specifically, the method to be used to determine the historical standard value may be determined according to network performance requirements or experience.

Step 402, judging whether the historical standard value of the average PRB occupancy rate of the cell is greater than a preset value, if yes, determining that there is a hardware failure of the base station, otherwise, performing step 403.

Step 403, judge whether the E-RAB establishment success rate of the cell is greater than a preset value, if yes, determine that the network is normal, otherwise, determine that there is a base station scheduling problem.

The base station scheduling problem in this step is generally a wireless resource scheduling problem.

After accurately locating LTE network problems, corresponding solutions can be taken according to the specific problems existing in the LTE network, for example, troubleshooting base station hardware failures, and optimizing corresponding base station scheduling methods.

FIG. 5 is a flow chart of precisely locating LTE network problems within the [negative, positive] quadrant shown in FIG. 2 proposed by an embodiment of the present invention.

As shown in Figure 5, the process includes:

Step 501, judging whether the SINR value of the cell is smaller than a preset value, if yes, execute step 502, otherwise, execute step 504.

Wherein, the SINR value of the cell may be the average value of the SINR values in all MRs of the cell, or may be a value obtained by other methods, for example, sampling part of MRs, and determining the SINR value of the cell as a sampling The average value of the SINR of the MR, or it may be the weighted sum of the SINR values in the sampled MR, etc. Specifically, the method used to determine the SINR value of the cell may be determined according to network performance requirements or experience.

In step 502, it is judged whether the ratio of the low RSRP value of the cell is higher than a preset value, if yes, it is determined that there is a problem of weak network coverage, otherwise, step 503 is executed.

Specifically, in this step, the RSRP low value ratio of the cell can be obtained in the following manner: sampling part or all of the MRs from all MRs of the cell, and determining whether the RSRP value in each sampled MR of the cell is less than A preset value, determining the proportion of the number of sampled MRs in the cell that includes an RSRP less than the preset value in the total number of sampled MRs in the cell as the low RSRP ratio of the cell.

Step 503, judging whether the reported ratio of MRs with modulo 3 interference with the PCI of the cell is greater than a preset value, if yes, determining that there is PCI modulo 3 interference, otherwise, determining that there is neighbor cell interference due to repeated coverage.

Wherein, according to the RSRP value of the current cell and the adjacent cell and the PCI value of the current cell and the adjacent cell in the MR, the MR report ratio of modulo three interference with the PCI of the cell can be determined.

Specifically, some or all MRs may be sampled from all MRs in the cell, and for each sampled MR, a modulo calculation is performed according to the PCI values of each neighboring cell in the MR, and the difference between the modulo 3 result and the PCI of the cell is found. For neighboring cells with the same modulus three results, calculate the difference between the found RSRP values of each neighboring cell and the RSRP value of this cell, and determine whether the minimum difference satisfies the modulo three interference condition, for example, whether it is less than the preset threshold value, if If yes, it is determined that there is mode three interference in the MR; otherwise, it is determined that there is no mode three interference in the MR, and the ratio of the number of sampled MRs satisfying mode three interference to the total number of sampled MRs is determined as the PCI mode three interference reporting ratio.

Step 504, monitor terminal capability information, and judge whether there is a terminal problem or a base station scheduling problem according to the terminal capability information.

In this step, specifically, the type of the terminal can be tracked, and then a capability test can be performed on the type of terminal, including the decoding capability of the terminal, the capability of supporting encoding, and/or the capability of supporting the transmission mode, and judging whether the test result meets the predetermined requirements , if yes, it is determined that there is a base station scheduling problem; otherwise, it is determined that there is a terminal promotion problem.

After accurately locating the LTE network problem, corresponding solutions can be taken according to the specific problems existing in the LTE network. For example, when it is determined that there is a weak network coverage problem, the network coverage can be improved by adjusting the transmit power parameters and/or adjusting the antenna elevation angle. Intensity, when it is determined that there is adjacent cell interference caused by repeated coverage, you can reduce the adjacent cell interference caused by repeated coverage by adjusting the power parameters of adjacent cells and/or adjusting the antenna pitch angle. When it is determined that there is PCI mode 3 When there is interference, PCI allocation can be reasonably planned. When it is determined that there is a problem with the terminal, you can focus on promoting the terminal. When it is determined that there is a problem with the scheduling of the base station, you can optimize the scheduling method of the base station, such as the transmission mode scheduling method, coding Scheduling methods, scheduling methods of physical resources or wireless resources, etc. are optimized.

FIG. 6 is a flow chart of precisely locating LTE network problems within the [negative, negative] quadrant shown in FIG. 2 proposed by an embodiment of the present invention.

As shown in Figure 6, the process includes:

Step 601, judging whether the uplink high-power transmission ratio of the cell is higher than a preset value, if yes, execute step 602, otherwise, execute step 603.

In this step, the uplink high-power transmission ratio of the cell can be determined according to the uplink transmission power information in the MR of the cell. For example, according to the uplink transmission power information in the sampling MR of the cell, it is determined whether the uplink transmission power corresponding to the sampling MR is greater than a preset value, and the corresponding uplink transmission power is greater than the preset value (or the corresponding uplink transmission power surplus The ratio of the number of sampled MRs whose quantity is smaller than the preset value to the total number of sampled MRs of the cell is determined as the high-power transmission ratio of the cell.

Wherein, the preset value used for comparison with the uplink transmission power or the uplink transmission power headroom may be a fixed value, or may be determined according to a predetermined algorithm according to network performance requirements.

Step 602, judge whether the cell is a cell for continuous coverage, if yes, determine that the network is normal, otherwise, determine that there is a base station hardware failure or a base station distribution problem.

In this step, it is first possible to judge whether there is a fault in the base station hardware. If so, it is determined that there is a hardware fault problem. Otherwise, it is determined that it is a distribution problem of the base station, that is, the location of the base station to which the cell belongs is not reasonable enough, and the location of the station needs to be reselected. .

Step 603 , judging whether the low RSRP ratio of the cell is higher than a preset value, if yes, determining that there is a problem of weak network coverage, otherwise, performing step 604 .

For the method for determining the ratio of low RSRP values, refer to step 502 for details.

In step 604, it is judged whether the reported ratio of MRs with modulo 3 interference with the PCI of the cell is greater than a preset value, and if yes, it is determined that there is PCI modulo 3 interference, otherwise, it is determined that there is interference of adjacent cells due to repeated coverage.

For the method for determining the reporting ratio of MRs that have modulo three interference with the PCI of the cell, refer to step 503 for details.

After accurately locating the LTE network problem, corresponding solutions can be taken according to the specific problem existing in the LTE network. For details, please refer to the related descriptions in Fig. 3-Fig. 5 .

According to the above method provided by the embodiment of the present invention, the embodiment of the present invention also provides a system for locating LTE network problems based on wireless indicators, please refer to FIG. 7 for details.

FIG. 7 is a schematic diagram of system composition for locating LTE network problems based on wireless indicators provided by an embodiment of the present invention.

As shown in FIG. 7 , the system includes an index acquisition module 701 , a state determination module 702 and a problem range determination module 703 to be checked.

The indicator acquisition module 701 is configured to acquire the average throughput rate per physical resource block (PRB) of a cell and the average PRB occupancy rate of the cell.

A state determination module 702, configured to determine whether the average throughput per PRB of the cell is higher than a first threshold, if yes, determine that the average throughput per PRB of the cell is in the first state, otherwise, determine that the average throughput of the cell is in the first state The average throughput rate per PRB of the cell is in the second state, determine whether the average PRB occupancy rate of the cell is higher than the second threshold value, if yes, determine that the average PRB occupancy rate of the cell is in the third state, otherwise, determine the PRB average occupancy rate of the cell The average occupancy rate of the cell is in the fourth state.

The range of problems to be checked determination module 703 is configured to determine the range of problems to be checked in the LTE network according to the state of the average throughput per PRB of the cell and the state of the average PRB occupancy of the cell. The range of problems to be checked in the LTE network can be determined by the range of problems to be checked determining module 703 , so that LTE network problems can be located within the range of problems to be checked.

The problem range determination module 703 to be checked can be specifically configured to determine the problem to be checked in the LTE network when the average throughput per PRB of the cell is in the first state and the average PRB occupancy rate of the cell is in the third state The scope includes base station scheduling issues and/or network load issues; and/or, when the average throughput per PRB of the cell is in the first state and the average PRB occupancy rate of the cell is in the fourth state, it is determined that LTE The range of problems to be checked in the network includes a base station hardware failure problem and/or a base station scheduling problem; and/or, when the average throughput per PRB of the cell is in the second state and the average PRB occupancy rate of the cell is in the third state state, it is determined that the range of problems to be checked in the LTE network includes network coverage problems, network interference problems, terminal problems and/or base station scheduling problems; and/or, when the average throughput per PRB of the cell is in the second state, And when the average PRB occupancy rate of the cell is in the fourth state, it is determined that the range of problems to be checked in the LTE network includes network coverage problems, network interference problems, base station hardware failure problems and/or base station distribution problems.

The system may also include a precise positioning module.

The indicator acquisition module 701 also acquires auxiliary indicators for precisely locating LTE network problems.

The precise positioning module is configured to locate LTE network problems within the range of problems to be checked according to the range of problems to be checked in the LTE network according to the auxiliary index.

Wherein, the index obtaining module 701 can obtain auxiliary indexes for accurately locating LTE network problems within the range according to the range of problems to be checked in the LTE network, specifically:

When the average throughput per PRB of the cell is in the first state and the average PRB occupancy rate of the cell is in the third state, the auxiliary indicators for locating LTE network problems include: the number of simultaneous online users of the cell, Evolved Packet Radio Access Bearer (E-RAB) establishment success rate of the cell and/or throughput of neighboring cells of the cell.

And/or, when the average throughput per PRB of the cell is in the first state and the average PRB occupancy rate of the cell is in the fourth state, the auxiliary indicators for locating LTE network problems include: the PRB of the cell The historical record value of the average occupancy rate and/or the E-RAB establishment success rate of the cell.

And/or, when the average throughput per PRB of the cell is in the second state and the average PRB occupancy rate of the cell is in the third state, the auxiliary index for locating the LTE network problem includes: measurement of the cell Signal-to-Noise Ratio (SINR) value, Reference Signal Received Power (RSRP) value and/or Cell Physical Identity (PCI) value in Report (MR).

And/or, when the average throughput per PRB of the cell is in the second state and the average PRB occupancy rate of the cell is in the fourth state, the auxiliary indicators for locating LTE network problems include: the MR of the cell Uplink transmit power information, RSRP value and/or PCI value in .

The precise positioning module may be used to determine whether the number of simultaneous online users of the cell is greater than Preset value; if the number of simultaneous online users in the cell is greater than the preset value, judge whether the E-RAB establishment success rate of the cell is greater than the preset value, if the E-RAB establishment success rate of the cell is greater than the preset value , determine that the network is normal, otherwise, determine that there is a network load problem; if the number of simultaneous online users in the cell is not greater than the preset value, determine whether the E-RAB establishment success rate of the cell is greater than the preset value, if the cell’s If the E-RAB establishment success rate is greater than the preset value, it is determined that the network is normal; otherwise, it is determined that there is a base station scheduling problem. Wherein, the base station scheduling problem includes a wireless resource scheduling problem.

The precise positioning module can be used to determine whether the throughput of each neighboring cell of the cell is greater than a preset value when there is a network load problem, and determine whether the throughput of a predetermined proportion of neighboring cells is greater than a preset value, if If yes, it is determined that the network needs to be expanded; otherwise, it is determined that the load balancing parameters among cells need to be adjusted.

The precise positioning module may be configured to: when the average throughput per PRB of the cell is in the first state and the average PRB occupancy rate of the cell is in the fourth state, according to each of the average PRB occupancy rates of the cell The historical record value determines the historical standard value of the PRB average occupancy rate of the cell, and judges whether the historical standard value of the PRB average occupancy rate of the cell is greater than a preset value; if the historical standard value of the PRB average occupancy rate of the cell is greater than Preset value, determine that there is a base station hardware failure problem; if the historical standard value of the PRB average occupancy rate of the cell is less than the preset value, judge whether the E-RAB establishment success rate of the cell is greater than the preset value, if the cell If the E-RAB establishment success rate is greater than the preset value, it is determined that the network is normal; otherwise, it is determined that there is a base station scheduling problem. Wherein, the base station scheduling problem includes a wireless resource scheduling problem.

The precise positioning module may be configured to determine whether the SINR value of the cell is less than a preset value when the average throughput rate per PRB of the cell is in the second state and the average PRB occupancy rate of the cell is in the third state value; when the SINR value is less than a preset value, determine whether the value of RSRP in each sampled MR of the cell is smaller than a preset value, and determine the number of sampled MRs of the cell that include an RSRP smaller than a preset value Whether the proportion of the total number of sampled MRs in the cell is higher than the preset value, if yes, determine that there is a problem of weak network coverage, otherwise, determine the proportion of MR reports that have modulo three interference with the PCI of the cell Whether it is greater than the preset value, if yes, determine that there is a PCI mode three interference problem, otherwise, determine that there is a neighbor cell interference problem caused by repeated coverage; when the SINR value is not less than the preset value, monitor the terminal capability information, according to the terminal The capability information determines whether there is a terminal problem or a base station scheduling problem.

The precise positioning module may be configured to: when the average throughput per PRB of the cell is in the second state and the average PRB occupancy rate of the cell is in the fourth state, according to the uplink transmission in the sampling MR of the cell Power information, determining whether the uplink transmit power corresponding to the sampled MR is greater than a preset value, and judging the proportion of the number of sampled MRs whose corresponding uplink transmit power is greater than the preset value in the total number of sampled MRs in the cell Whether it is higher than the preset value; if the ratio is higher than the preset value, judge whether the cell is a cell for continuous coverage, if yes, determine that the network is normal, otherwise, determine that there is a base station hardware failure or a base station distribution problem; if The ratio is not higher than the preset value, determine whether the value of RSRP in each sampled MR of the cell is less than the preset value, and determine whether the number of sampled MRs in the cell that includes the RSRP smaller than the preset value is within the Whether the proportion of the total number of all sampled MRs in the cell is higher than the preset value, if yes, determine that there is a network coverage problem, otherwise, determine whether the reported ratio of MRs with modulo three interference with the PCI of the cell is greater than the preset value Set the value, if yes, it is determined that there is a PCI mode three interference problem, otherwise, it is determined that there is an adjacent cell interference problem caused by repeated coverage.

The indicator acquisition module 701 in the embodiment of the present invention can actively acquire the average throughput rate per PRB of the cell, the average PRB occupancy rate of the cell, various auxiliary indicators, etc. from the network management device, or can also receive input from other devices or modules Various indicators.

The system shown in Figure 7 can output the problems existing in the live network according to the judgment results, which can be used as a reference for network operation and maintenance personnel to help them quickly discover network problems and reduce the workload of testing.

It can be seen that in the preferred embodiment of the present invention, the two indicators of the average throughput per PRB and the average occupancy rate of PRB at the cell level are obtained from the network management equipment as the main indicators for daily maintenance observations. First, quantitative combination analysis is performed on these two indicators, focusing The range of possible problems, and then select other network management indicators that can assist in locating specific problems based on possible problems, and finally confirm and locate the problems in the network. The focus and pertinence are stronger, and blindness and a large amount of testing work are avoided. It provides a new way for the daily operation and maintenance of the LTE network and for discovering and locating network problems. In addition, it is more accurate to locate network problems based on network management data, and the collection of indicators is convenient. At the same time, the randomness and one-sidedness caused by testing are reduced, and network problems can be discovered in time. It is suitable as a tool for daily network maintenance.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (23)

1., based on a method for wireless index location LTE network problem, it is characterized in that, the method comprises:

Obtain every Physical Resource Block (PRB) average throughput of community and the average occupancy of PRB of described community;

Determine that whether every PRB average throughput of described community is higher than the first threshold value, if so, determine that every PRB average throughput of described community is in the first state, otherwise, determine that every PRB average throughput of described community is in the second state;

Determine that whether the average occupancy of the PRB of described community is higher than the second threshold value, if so, determine that the average occupancy of the PRB of described community is in the third state, otherwise, determine that the average occupancy of described community is in the 4th state;

State residing for every PRB average throughput of described community and the state residing for the average occupancy of PRB of described community, determine the scope of the examine problem of LTE network, in the scope inner position LTE network problem of described examine problem.

2. method according to claim 1, is characterized in that, the state residing for every PRB average throughput of described community and the state residing for the average occupancy of PRB of described community, determines that the scope of the examine problem of LTE network comprises:

When every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the third state, determine that the scope of the examine problem of LTE network comprises: base station scheduling problem and/or network load problem;

And/or, when every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the 4th state, determine that the scope of the examine problem of LTE network comprises: BTS hardware failure problems and/or base station scheduling problem;

And/or, when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the third state, determine that the scope of the examine problem of LTE network comprises: network coverage problem, network interferences problem, terminal problem and/or base station scheduling problem;

And/or, when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the 4th state, determine that the scope of the examine problem of LTE network comprises: network coverage problem, network interferences problem, BTS hardware failure problems and/or base station distribution problem.

3. method according to claim 1 and 2, is characterized in that, comprises in the scope inner position LTE network problem of described examine problem:

Obtain the auxiliary characteristics being used for accurately location LTE network problem, according to the scope inner position LTE network problem of described auxiliary characteristics in described examine problem.

4. method according to claim 3, is characterized in that,

When every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the third state, comprise for the auxiliary characteristics of locating LTE network problem: while described community, the evolved packet system RAB (E-RAB) of online user number, described community is created as the throughput of the adjacent cell of power and/or described community;

And/or, when every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the 4th state, comprise for the auxiliary characteristics of locating LTE network problem: the historical record value of the average occupancy of PRB and/or the E-RAB of described community of described community are created as power;

And/or, when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the third state, comprise for the auxiliary characteristics of locating LTE network problem: signal to noise ratio (SINR) value in the measurement report (MR) of described community, Reference Signal Received Power (RSRP) value and/or physical cell identity (PCI) value;

And/or, when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the 4th state, comprise for the auxiliary characteristics of locating LTE network problem: the uplink transmission power information in the MR of described community, RSRP value and/or PCI value.

5. method according to claim 4, it is characterized in that, when every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the third state, comprise according to the scope inner position LTE network problem of described auxiliary characteristics in described examine problem:

While judging described community, whether online user number is greater than preset value;

If online user number is greater than preset value while described community, judge that the E-RAB of described community is created as power and whether is greater than preset value, if the E-RAB of described community is created as power be greater than preset value, determine that network is normal, otherwise, determine to there is network load problem;

If online user number is not more than preset value while described community, judge that the E-RAB of described community is created as power and whether is greater than preset value, if the E-RAB of described community is created as power be greater than preset value, determine that network is normal, otherwise, determine to there is base station scheduling problem.

6. method according to claim 5, is characterized in that, the method also comprises:

When there is network load problem, determine whether the throughput of each adjacent cell of described community is greater than preset value, judge whether that the throughput of the adjacent cell of predetermined ratio is greater than preset value, if, determine to need to carry out dilatation to network, otherwise, determine the load balancing parameter needing to adjust minizone.

7. method according to claim 4, it is characterized in that, when every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the 4th state, comprise according to the scope inner position LTE network problem of described auxiliary characteristics in described examine problem:

Determine the historical standard value of the average occupancy of the PRB of described community according to each historical record value of the average occupancy of the PRB of described community, judge whether the historical standard value of the average occupancy of the PRB of described community is greater than preset value;

If the historical standard value of the average occupancy of the PRB of described community is greater than preset value, determine to there is BTS hardware failure problems;

If the historical standard value of the average occupancy of the PRB of described community is less than preset value, judge that the E-RAB of described community is created as power and whether is greater than preset value, if the E-RAB of described community is created as power be greater than preset value, determine that network is normal, otherwise, determine to there is base station scheduling problem.

8. the method according to claim 5 or 7, is characterized in that, described base station scheduling problem comprises wireless resource scheduling problem.

9. method according to claim 4, it is characterized in that, when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the third state, comprise according to the scope inner position LTE network problem of described auxiliary characteristics in described examine problem:

Judge whether the SINR value of described community is less than preset value;

When described SINR value is less than preset value, determine whether the value of the RSRP in each sampling MR of described community is less than preset value, judge that whether the ratio shared in total number of the sampling MR of described community of the number comprising the sampling MR of the RSRP being less than preset value of described community is higher than preset value, if, determine to there is the weak covering problem of network, otherwise, judging to exist with the PCI of described community the MR that mould three disturbs reports ratio whether to be greater than preset value, if, determine to there is PCI mould three interference problem, otherwise, determine to exist owing to repeating to cover the adjacent area interference problem caused,

When described SINR value is not less than preset value, monitoring terminal ability information, judges to there is terminal problem or there is base station scheduling problem according to terminal ability information.

10. method according to claim 9, is characterized in that, judges to there is terminal problem or store base station scheduling problem to comprise according to terminal ability information:

Judge the decoding capability of terminal, support the ability of coding and/or support whether the ability of transmission mode meets pre-provisioning request, if so, determines to there is base station scheduling problem, otherwise, determine that there is terminal promotes problem.

11. methods according to claim 4, it is characterized in that, when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the 4th state, comprise according to the scope inner position LTE network problem of described auxiliary characteristics in described examine problem:

According to the uplink transmission power information in the sampling MR of described community, determine whether uplink transmission power corresponding to described sampling MR is greater than preset value, judge that whether number that corresponding uplink transmission power is greater than the sampling MR of the preset value ratio shared by the total number of sampling MR of described community is higher than preset value;

If described ratio is higher than preset value, judging that whether described community is the community for covering continuously, if so, determining that network is normal, otherwise, determine to there is BTS hardware fault or base station distribution problem;

If described ratio is not higher than preset value, determine whether the value of the RSRP in each sampling MR of described community is less than preset value, judge that whether the ratio of the number comprising the sampling MR of the RSRP being less than preset value of described community shared by total number of all sampling MR of described community be higher than preset value, if, determine to there is the weak covering problem of network, otherwise, judging to exist with the PCI of described community the MR that mould three disturbs reports ratio whether to be greater than preset value, if, determine to there is PCI mould three interference problem, otherwise, determine to exist owing to repeating to cover the adjacent area interference problem caused.

12. methods according to claim 11, is characterized in that, determine to there is BTS hardware fault or base station distribution problem comprises:

Judge whether BTS hardware exists fault, if so, determine to there is BTS hardware failure problems, otherwise, determine to there is base station distribution problem.

13. methods according to claim 1, is characterized in that, described first threshold value is determined according to the mean value of PRB average throughput every in the historical record value of every PRB average throughput of described community and/or network;

And/or described second threshold value is determined according to the mean value of the average occupancy of PRB in the historical record value of the average occupancy of PRB of described community and/or network.

14. 1 kinds of systems based on wireless index location LTE network problem, it is characterized in that, this system comprises index selection module, state determining module and examine problem scope determination module;

Described index selection module, for the average occupancy of PRB of every Physical Resource Block (PRB) average throughput and described community that obtain community;

Described state determining module, for determining that whether every PRB average throughput of described community is higher than the first threshold value, if, determine that every PRB average throughput of described community is in the first state, otherwise, determine that every PRB average throughput of described community is in the second state, determine that whether the average occupancy of the PRB of described community is higher than the second threshold value, if, determine that the average occupancy of the PRB of described community is in the third state, otherwise, determine that the average occupancy of described community is in the 4th state;

Described examine problem scope determination module, for the state residing for every PRB average throughput of described community and described community the average occupancy of PRB residing for state, determine the scope of the examine problem of LTE network, make it possible to the scope inner position LTE network problem in described examine problem.

15. systems according to claim 14, is characterized in that,

Described examine problem scope determination module, for when every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the third state, determine that the scope of the examine problem of LTE network comprises: base station scheduling problem and/or network load problem; And/or, when every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the 4th state, determine that the scope of the examine problem of LTE network comprises: BTS hardware failure problems and/or base station scheduling problem; And/or, when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the third state, determine that the scope of the examine problem of LTE network comprises: network coverage problem, network interferences problem, terminal problem and/or base station scheduling problem; And/or, when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the 4th state, determine that the scope of the examine problem of LTE network comprises: network coverage problem, network interferences problem, BTS hardware failure problems and/or base station distribution problem.

16. systems according to claims 14 or 15, it is characterized in that, this system also comprises accurate locating module;

Described index selection module, obtains the auxiliary characteristics being used for accurately location LTE network problem;

Described accurate locating module, for the scope of the examine problem according to LTE network, according to the scope inner position LTE network problem of described auxiliary characteristics in described examine problem.

17. systems according to claim 16, is characterized in that,

When every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the third state, comprise for the auxiliary characteristics of locating LTE network problem: while described community, the evolved packet system RAB (E-RAB) of online user number, described community is created as the throughput of the adjacent cell of power and/or described community;

And/or, when every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the 4th state, comprise for the auxiliary characteristics of locating LTE network problem: the historical record value of the average occupancy of PRB and/or the E-RAB of described community of described community are created as power;

And/or, when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the third state, comprise for the auxiliary characteristics of locating LTE network problem: signal to noise ratio (SINR) value in the measurement report (MR) of described community, Reference Signal Received Power (RSRP) value and/or physical cell identity (PCI) value;

And/or, when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the 4th state, comprise for the auxiliary characteristics of locating LTE network problem: the uplink transmission power information in the MR of described community, RSRP value and/or PCI value.

18. systems according to claim 17, is characterized in that,

Described accurate locating module, for when every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the third state, while judging described community, whether online user number is greater than preset value; If online user number is greater than preset value while described community, judge that the E-RAB of described community is created as power and whether is greater than preset value, if the E-RAB of described community is created as power be greater than preset value, determine that network is normal, otherwise, determine to there is network load problem; If online user number is not more than preset value while described community, judge that the E-RAB of described community is created as power and whether is greater than preset value, if the E-RAB of described community is created as power be greater than preset value, determine that network is normal, otherwise, determine to there is base station scheduling problem.

19. systems according to claim 18, is characterized in that,

Described accurate locating module, for when there is network load problem, determine whether the throughput of each adjacent cell of described community is greater than preset value, judge whether that the throughput of the adjacent cell of predetermined ratio is greater than preset value, if, determine to need to carry out dilatation to network, otherwise, determine the load balancing parameter needing to adjust minizone.

20. systems according to claim 17, is characterized in that,

Described accurate locating module, for when every PRB average throughput of described community is in the first state and the average occupancy of PRB of described community is in the 4th state, determine the historical standard value of the average occupancy of the PRB of described community according to each historical record value of the average occupancy of the PRB of described community, judge whether the historical standard value of the average occupancy of the PRB of described community is greater than preset value; If the historical standard value of the average occupancy of the PRB of described community is greater than preset value, determine to there is BTS hardware failure problems; If the historical standard value of the average occupancy of the PRB of described community is less than preset value, judge that the E-RAB of described community is created as power and whether is greater than preset value, if the E-RAB of described community is created as power be greater than preset value, determine that network is normal, otherwise, determine to there is base station scheduling problem.

21. systems according to claim 18 or 20, it is characterized in that, described base station scheduling problem comprises wireless resource scheduling problem.

22. systems according to claim 17, is characterized in that,

Described accurate locating module, for when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the third state, judges whether the SINR value of described community is less than preset value, when described SINR value is less than preset value, determine whether the value of the RSRP in each sampling MR of described community is less than preset value, judge that whether the ratio shared in total number of the sampling MR of described community of the number comprising the sampling MR of the RSRP being less than preset value of described community is higher than preset value, if, determine to there is the weak covering problem of network, otherwise, judging to exist with the PCI of described community the MR that mould three disturbs reports ratio whether to be greater than preset value, if, determine to there is PCI mould three interference problem, otherwise, determine to exist owing to repeating to cover the adjacent area interference problem caused, when described SINR value is not less than preset value, monitoring terminal ability information, judges to there is terminal problem or there is base station scheduling problem according to terminal ability information.

23. systems according to claim 17, is characterized in that,

Described accurate locating module, for when every PRB average throughput of described community is in the second state and the average occupancy of PRB of described community is in the 4th state, according to the uplink transmission power information in the sampling MR of described community, determine whether uplink transmission power corresponding to described sampling MR is greater than preset value, judge that whether number that corresponding uplink transmission power is greater than the sampling MR of the preset value ratio shared by the total number of sampling MR of described community is higher than preset value, if described ratio is higher than preset value, judging that whether described community is the community for covering continuously, if so, determining that network is normal, otherwise, determine to there is BTS hardware fault or base station distribution problem, if described ratio is not higher than preset value, determine whether the value of the RSRP in each sampling MR of described community is less than preset value, judge that whether the ratio of the number comprising the sampling MR of the RSRP being less than preset value of described community shared by total number of all sampling MR of described community be higher than preset value, if, determine to there is network coverage problem, otherwise, judging to exist with the PCI of described community the MR that mould three disturbs reports ratio whether to be greater than preset value, if, determine to there is PCI mould three interference problem, otherwise, determine to exist owing to repeating to cover the adjacent area interference problem caused.