CN101505489B - Method and apparatus for detecting cells with antenna feeders reverse connected - Google Patents
Method and apparatus for detecting cells with antenna feeders reverse connected Download PDFInfo
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Abstract
The embodiment of the invention discloses a method for detecting cells with reversely-connected antenna feeder equipment, which belongs to the field of wireless communication. The method comprises the steps of: acquiring dominant set RTWP values and diversity RTWP values of various cell antennas of a base station in a time period to be detected; calculating the related coefficient of the dominant set RTWP value and the diversity RTWP value of each cell; and determining cells that dominant sets and diversities of antenna feeder equipment are reversely connected according to the related coefficients of the dominant set RTWP values and the diversity RTWP values obtained through the calculation. The method also comprises the steps of: acquiring optimization data and soft handover information of same-frequency neighbor cells of the cells of the base station in the time period to be detected; acquiring optimum cells according to the reporting times of a 1A event and a preset acquisition threshold; acquiring a current cell in the optimum cells; and determining cells which are reversely connected compared with the current cell according to the soft handover times between the current cell and various cells of positive neighbor cell sets thereof and the soft handover times between the current cell and various cells of positive neighbor cell sets of same-frequency co-station cells thereof. The method can automatically realize the detection of the reversely-connected antenna feeder equipment, reduce road test cost, and improve work efficiency.
Description
Technical Field
The invention relates to the field of wireless communication, in particular to a method and a device for detecting a cell with reversely connected antenna feeder equipment.
Background
In the base station site construction and network optimization process of a WCDMA (Wideband Code Division Multiple Access) mobile communication network, detection and optimization of radio frequency hardware equipment need to be performed on a single base station site to ensure that services such as Access, conversation, and the like of each cell of each base station site operate normally.
The reverse connection detection of the antenna feeder equipment of the base station site cell is one of services for detecting and optimizing site radio frequency hardware equipment, generally, the reverse connection of the antenna feeder equipment is expressed as cell main diversity reverse connection and cell reverse connection, currently, the reverse connection detection of the antenna feeder equipment mainly adopts a manual detection method, and the specific operations include: in a cell to be tested, a test terminal is adopted to access services in the main lobe direction of an antenna of the cell to be tested so as to fix frequency points and transmit signals with the maximum power. If the RTWP (received total Power) of the cell to be measured is obviously increased and the RTWP of the adjacent cell changes less, the main diversity connection of the cell to be measured can be judged to be correct; and if the RTWP of the cell to be tested and the RTWP of the adjacent cell are obviously raised, the main diversity connection of the cell to be tested is wrong. By adopting the method, whether the primary diversity is connected reversely or not is checked, and whether the cell is connected reversely or not can be detected.
The inventors have found that the above prior art has at least the following disadvantages and shortcomings:
firstly, the requirement on the test terminal is high, the test terminal needs to transmit signals at a fixed frequency point and continuously with the maximum power, and the test terminal meeting the requirement is difficult to find in an actual test field (such as a station building field); in addition, the tester has to perform comprehensive drive test work on the network and then perform special analysis on the drive test data RTWP, so that the time and the labor are consumed, the economic cost is high, and the working efficiency is low; in addition, in the method provided by the prior art, because there is an error in manual detection, there may be a situation that part of the base station antenna feeder equipment is connected reversely but is not detected, so that the uplink coverage is lower than the planning coverage or the neighboring cell relation is wrong, resulting in a decrease in the success rate of handover.
Disclosure of Invention
In order to automatically realize the detection of the antenna feeder equipment with reverse connection, reduce the drive test cost and improve the working efficiency, the embodiment of the invention provides a method and a device for detecting a cell with reverse connection of the antenna feeder equipment. The technical scheme is as follows:
in one aspect, an embodiment of the present invention provides a method for detecting a cell with an antenna feeder device connected reversely, where the method includes:
acquiring a main set broadband receiving total power RTWP value and a diversity RTWP value of each cell antenna of a base station in a time period to be measured;
calculating a correlation coefficient of a main set RTWP value and a diversity RTWP value of each cell;
and determining a cell which is reversely connected with the antenna feeder equipment main diversity in the current cell according to the correlation coefficient of the main set RTWP value and the diversity RTWP value obtained by calculation.
In one aspect, an embodiment of the present invention provides a method for detecting a cell with an antenna feeder device connected reversely, where the method includes:
acquiring the same-frequency adjacent cell data and soft switching information of each cell of the base station in a time period to be measured; wherein the same-frequency neighboring cell data comprises: 1A event reporting times, 1A event reporting time, an active set cell identification ID and a detection set cell ID; the soft handover information includes: time of soft handover event, active set cell ID, target cell ID;
acquiring a current cell in an optimal cell according to the reporting times of the 1A event and a preset acquisition threshold;
and determining the cell which is reversely connected with the current cell according to the soft switching times of the current cell and each cell of the forward adjacent cell set of the current cell and the forward adjacent cell set of the cell, and the soft switching times of the current cell and each cell of the forward adjacent cell set of the co-frequency co-sited cell of the current cell and the cell of the current cell.
In another aspect, an embodiment of the present invention provides an apparatus for detecting a cell with an antenna feeder device connected reversely, where the apparatus includes:
the acquisition module is used for acquiring a main set RTWP value and a diversity RTWP value of each cell antenna of the base station in a time period to be measured;
the calculation module is used for calculating the correlation coefficient of the main set RTWP value and the diversity RTWP value of each cell according to the main set RTWP value and the diversity RTWP value of each cell antenna of the base station, which are acquired by the acquisition module;
and the processing module is used for determining a cell which is reversely connected with the main diversity of the antenna feeder equipment in the current cell according to the correlation coefficient of the RTWP value of the main set and the RTWP value of the diversity calculated by the calculating module.
In another aspect, an embodiment of the present invention provides an apparatus for detecting a cell with an antenna feeder device connected reversely, where the apparatus includes:
a first obtaining module, configured to obtain data and soft handover information of a co-frequency neighboring cell of each cell of a base station in a time period to be measured; wherein the same-frequency neighboring cell data comprises: 1A event reporting times, 1A event reporting time, an active set cell identification ID and a detection set cell ID; the soft handover information includes: time of soft handover event, active set cell ID, target cell ID;
a second obtaining module, configured to obtain, according to the 1A event reporting times obtained by the first obtaining module, a current cell in an optimal cell according to the 1A event reporting times and a preset obtaining threshold;
and the processing module is used for determining the cell which is reversely connected with the current cell according to the soft switching times of the current cell and each cell of the forward neighbor cell set of the current cell and the soft switching times of each cell of the forward neighbor cell set of the co-frequency co-sited cell of the current cell and the current cell, which are acquired by the second acquisition module.
The technical scheme provided by the embodiment of the invention has the beneficial effects that:
acquiring a cell in which antenna feeder equipment is reversely connected according to the correlation coefficient of the RTWP values of the main diversity in all the cells, and further determining the cell in which the antenna feeder equipment is reversely connected with the current cell according to the correlation coefficient of the RTWP values of the main diversity of the cell and a preset relative threshold; or detecting the cell which is reversely connected with the current cell according to the soft switching times of the current cell and other cells. The technical scheme provided by the embodiment of the invention can realize centralized and automatic detection of the antenna reverse connection of the antenna feeder equipment of the mobile communication network base station; on-site investigation and road test are not needed, the cost of network construction and maintenance is effectively reduced, and the efficiency is improved; the information of each cell with the antenna feeder equipment reversely connected can be accurately judged; and the geographical position of the cell where the antenna feeder equipment is reversely connected is visually displayed.
Drawings
Fig. 1 is a schematic flowchart of a method for detecting a cell with an antenna feeder device connected reversely according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a method for detecting a cell with an antenna feeder device connected reversely according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating normal connection of antenna feeder equipment in a cell according to embodiment 1 of the present invention;
fig. 4 is a schematic diagram of primary diversity connection of antenna feeder equipment of a cell according to embodiment 1 of the present invention;
fig. 5 is a schematic diagram of an antenna feeder apparatus cell reverse connection of a cell according to embodiment 1 of the present invention;
fig. 6 is a schematic flowchart of a method for detecting a cell with an antenna feeder device connected reversely according to embodiment 1 of the present invention;
fig. 7 is another schematic flow chart of a method for detecting a cell with an antenna feeder device connected in reverse according to embodiment 1 of the present invention;
fig. 8 is a schematic diagram of a cell provided in embodiment 1 of the present invention;
fig. 9 is a schematic diagram of an apparatus for detecting a cell with an antenna feeder device connected reversely according to embodiment 2 of the present invention;
fig. 10 is a schematic diagram of an apparatus for detecting a cell with an antenna feeder device connected reversely according to embodiment 3 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In order to automatically realize the detection of the antenna feeder equipment with reverse connection, reduce the cost of drive test and improve the working efficiency, the embodiment of the invention provides a method for detecting a cell with reverse connection of the antenna feeder equipment, and the method is as follows with reference to fig. 1:
s1: acquiring a main set RTWP value and a diversity RTWP value of each cell antenna of a base station in a time period to be measured;
s2: calculating a correlation coefficient of a main set RTWP value and a diversity RTWP value of each cell;
s3: and determining a cell which is reversely connected with the antenna feeder equipment main diversity in the current cell according to the correlation coefficient of the main set RTWP value and the diversity RTWP value obtained by calculation.
Therefore, the correlation coefficient of the main set RTWP value and the diversity RTWP value of each cell is calculated through the main set RTWP value and the diversity RTWP value of each cell antenna of the base station acquired in the time period to be measured, so that the cell with the reverse connection of the main set RTWP value and the diversity RTWP value of the antenna feeder equipment of the current cell is determined, the cell with the reverse connection of the antenna feeder equipment of the base station of the mobile communication network is centrally and automatically detected, the field investigation and the road test are not needed, the network building and maintenance cost is effectively reduced, and the efficiency is improved.
Wherein, in the step S2: calculating a correlation coefficient of the main set RTWP value and the diversity RTWP value of each cell, wherein the correlation coefficient comprises the following steps:
setting a sampling interval, and respectively sampling a main set RTWP value and a diversity RTWP value of each cell antenna of the base station acquired in a time period to be detected to obtain a sampling array of the main set RTWP value and the diversity RTWP value of the cell;
and calculating the correlation coefficient of the main set RTWP value and the diversity RTWP value of each cell according to the sampling array of the main set RTWP value and the diversity RTWP value of the cell.
Wherein, in the step S3: determining a cell with the antenna feeder equipment reversely connected according to the calculated correlation coefficient of the RTWP value of the main set and the RTWP value of the diversity, comprising the following steps:
acquiring a current cell in the cells of which the correlation coefficient is smaller than the preset relative threshold according to the correlation coefficient of the main set RTWP value and the diversity RTWP value obtained by calculation and the preset relative threshold;
acquiring correlation coefficients of a main set RTWP value and a diversity RTWP value of a common-frequency co-sited cell of a current cell;
and determining a cell with the antenna feeder equipment in reverse main diversity connection with the current cell according to the correlation coefficient of the main set RTWP value and the diversity RTWP value of the co-frequency co-station cell of the current cell and a preset relative threshold.
The step of obtaining the current cell in the cells whose correlation coefficients are smaller than the preset relative threshold may be: firstly, acquiring a cell with a correlation coefficient smaller than a preset relative threshold; and then selecting the current cell from the cells of which the obtained correlation coefficient is smaller than a preset relative threshold according to a preset selection rule. The preset selection rule may be sequential selection, and the present embodiment is not limited to this.
The method for determining the cell with the antenna feeder equipment in reverse main diversity connection with the current cell according to the correlation coefficient of the main set RTWP value and the diversity RTWP value of the co-frequency co-station cell of the current cell and a preset relative threshold comprises the following steps:
if the correlation coefficient of the main set RTWP value and the diversity RTWP value of a plurality of co-frequency co-sited cells is smaller than a preset relative threshold, respectively calculating the correlation coefficient of the main set RTWP value of the current cell and the diversity RTWP value of each cell in the plurality of co-frequency co-sited cells; determining a cell reversely connected with the main diversity of the antenna feeder equipment of the current cell according to the calculated main set RTWP value of the current cell and the correlation coefficient of the diversity RTWP value of each cell in a plurality of co-frequency co-sited cells;
and if the correlation coefficient of the main set RTWP value and the diversity RTWP value of one co-frequency co-sited cell is smaller than the preset relative threshold, the co-frequency co-sited cell and the current cell are reversely connected with the main diversity of the antenna feeder equipment.
The method for determining the cell with the antenna feeder equipment primary diversity reverse connection with the current cell according to the calculated correlation coefficient of the RTWP value of the primary set of the current cell and the RTWP value of each cell diversity in a plurality of co-frequency co-sited cells comprises the following steps:
acquiring a maximum correlation coefficient item according to the calculated correlation coefficient of the main set RTWP value of the current cell and the diversity RTWP value of each cell in a plurality of co-frequency co-sited cells;
and the co-frequency co-sited cell corresponding to the maximum correlation coefficient item is a cell which is reversely connected with the main diversity of the antenna feeder equipment of the current cell.
In summary, the method provided by the embodiment of the present invention can automatically detect and determine the cell with the antenna feeder equipment connected in reverse, and in addition, the embodiment of the present invention also provides a method for detecting the cell with the antenna feeder equipment connected in reverse, which can detect the cell with the cell connected in reverse, referring to fig. 2, the method includes:
c1: acquiring data and soft handover information of a same-frequency adjacent cell of each cell of a base station in a time period to be measured; wherein, the same-frequency adjacent region data comprises: 1A event reporting times, 1A event reporting time, an active set cell identification ID and a detection set cell ID; the soft handover information includes: time of soft handover event, active set cell identification ID, target cell identification ID;
c2: acquiring a current cell in the optimal cell according to the reporting times of the 1A events and a preset acquisition threshold;
c3: and determining the cell which is reversely connected with the current cell according to the soft switching times of the current cell and each cell of the forward adjacent cell set of the current cell and the same-frequency co-sited cell of the current cell and the forward adjacent cell set of the current cell.
In the step C2, the current cell in the optimal cell is obtained according to the number of reporting events of the 1A and the preset obtaining threshold, and the method specifically includes: acquiring the 1A event reporting times of the optimal cell according to the 1A event reporting times; acquiring the optimal cell with the 1A event reporting times larger than the preset acquisition threshold in the optimal cell according to the preset acquisition threshold and the 1A event reporting times of the optimal cell; and acquiring the current cell in the optimal cell with the 1A event reporting times larger than a preset acquisition threshold.
When the current cell is obtained, the current cell can be selected from the optimal cell according to a preset selection rule. The preset selection rule may be, for example, a selection in sequence, which is not limited in this embodiment.
Wherein, the step C3: determining a cell which is reverse to the current cell, comprising:
if the soft switching times of each cell of a forward adjacent cell set of a current cell and a certain co-frequency co-sited cell (called a first co-frequency co-sited cell) of the current cell are greater than the soft switching times of each cell of the current cell and the forward adjacent cell set of the current cell;
the soft switching times of all the cells of the forward adjacent cell set of the current cell and the first co-frequency co-sited cell of the current cell are greater than the soft switching times of all the cells of the forward adjacent cell set of the current cell and other co-frequency co-sited cells of the current cell and the first co-frequency co-sited cell of the current cell;
determining that the first co-sited cell and the current cell are in reverse cell connection.
In conclusion, the method provided by the embodiment of the invention can automatically detect and determine the cells with the cells in reverse connection, realizes centralized and automatic detection of the cells with the cells in reverse connection of the mobile communication network base station antenna feeder equipment, does not need field investigation and drive test, effectively reduces the network construction and maintenance cost, and improves the efficiency.
For a detailed description of the method for detecting a cell with an antenna feeder device connected reversely provided in the embodiment of the present invention, please refer to the following embodiment:
example 1
In order to automatically realize the detection of the antenna feeder equipment in reverse connection, reduce the cost of drive test and improve the working efficiency, the embodiment of the invention provides a method for detecting a cell in which the antenna feeder equipment is in reverse connection, and the method is explained by taking a WCDMA system as an example.
Referring to fig. 3, a normal schematic diagram of antenna feeder connection is shown, where an antenna a and an antenna b correspond to a cell sectorra and a cell sectorB, respectively, and Tx/Rx represents a cell main set for receiving a transmission signal; rx denotes cell diversity for receiving signals. As known to those skilled in the art, the antenna feeder device comprises the following two types: the main diversity is connected reversely and the same-frequency same-station cell is connected reversely. Referring to fig. 4, a schematic diagram of reverse primary diversity connection of antenna feeder equipment is shown, where Rx of cell a and Rx of cell B are misconnected, resulting in reverse primary diversity connection. Referring to fig. 5, a schematic diagram of cell reverse connection of an antenna feeder device is shown, where Tx/Rx of cell a and Tx/Rx of cell B are misconnected, and Rx of cell a and Rx of cell B are misconnected, resulting in cell reverse connection.
To determine whether the reverse connection problem of the antenna feeder equipment is caused by reverse connection of the main diversity or the cell, the following steps are performed, referring to fig. 6, which is a schematic flow chart of a method for detecting a cell with reverse connection of the antenna feeder equipment according to an embodiment of the present invention, as follows:
101: and acquiring a main set RTWP value and a diversity RTWP value of each cell antenna of the base station in a time period to be measured.
The method comprises the following steps that the main and diversity RTWP values of all cell antennas under a base station in a time period to be measured can be collected in a base station log tracking mode; the value of the time period to be measured may be set according to actual test requirements, and is usually a time period greater than 2 hours, for example, the value may be 2 to 3 hours.
To describe the method provided by the embodiment of the present invention in detail, the embodiment takes the following three co-frequency cells under the base station as follows: for example, cell 1, cell 2, and cell 3 are described, and accordingly, the main and diversity RTWP values of cell 1, cell 2, and cell 3 are collected within 2 to 3 hours, respectively.
102: and calculating a correlation coefficient of the main set RTWP value and the diversity RTWP value of each cell. See below for details:
first, a sampling interval is set, for example, 1 second as one sampling point; secondly, the correlation coefficient of the main set and the diversity two groups of data of each cell is calculated. For example, assuming that the set of sampling data points of the dominant set RTWP of the cell 1 is array a, and the set of sampling data points of the diversity RTWP of the cell 1 is array B, the following algorithm may be specifically used:
P＝Cov(A，B)/σA*σB
wherein, <math><mrow><mi>Cov</mi><mrow><mo>(</mo><mi>A</mi><mo>,</mo><mi>B</mi><mo>)</mo></mrow><mo>=</mo><mfrac><mn>1</mn><mi>N</mi></mfrac><mo>·</mo><munderover><mi>Σ</mi><mrow><mi>i</mi><mo>=</mo><mn>1</mn></mrow><mi>N</mi></munderover><mrow><mo>(</mo><msub><mi>x</mi><mi>i</mi></msub><mo>-</mo><mover><mi>x</mi><mo>‾</mo></mover><mo>)</mo></mrow><mrow><mo>(</mo><msub><mi>y</mi><mi>i</mi></msub><mo>-</mo><mover><mi>y</mi><mo>‾</mo></mover><mo>)</mo></mrow></mrow></math>
wherein,
the mean i ∈ (1, 2., N) of array A and array B, respectively
Therefore, the calculation formula for obtaining the correlation coefficient P is:
therefore, the correlation coefficients of the main set RTWP value and the diversity RTWP value of the cell 1 are obtained through calculation by the formula, and similarly, the correlation coefficients of the main set RTWP value and the diversity RTWP value of each cell of the base station can be obtained through calculation, and the method is similar and is not repeated.
103: and if the correlation coefficient approaches to 0, indicating that the cell antenna feeder equipment is reversely connected according to the correlation coefficient of the main set RTWP value and the diversity RTWP value obtained by the calculation.
104: if the correlation coefficient of the main set RTWP value and the diversity RTWP value of a certain cell is smaller than the preset relative threshold, step 105 is performed.
The preset relative threshold is obtained by setting by a tester according to the test requirement. In order to describe the method provided by the embodiment of the present invention in detail, in the embodiment, the preset relative threshold is taken as an example to be 0.5, and the example is assumed that the correlation coefficient between the RTWP value of the main set and the RTWP value of the diversity of the cell 1 is 0.3.
105: and obtaining the correlation coefficient of the main set RTWP value and the diversity RTWP value of the co-frequency co-sited cell of the current cell.
The current cell is the cell in which the correlation coefficient of the main set RTWP value and the diversity RTWP value described in the above step 104 is smaller than the preset relative threshold, and assuming that the current cell is the cell 1, the co-frequency co-sited cell with the cell 1 is obtained through the base station identifier ID, the downlink frequency point information, and the like in the base station configuration file, so as to obtain the correlation coefficient of the main set RTWP value and the diversity RTWP value of the co-frequency co-sited cell with the cell 1, and assuming that the co-frequency co-sited cell with the cell 1 is the cell 2 and the cell 3.
106: and determining a cell with antenna feeder equipment main diversity reverse connection with the current cell according to the correlation coefficient of the main set RTWP value and the diversity RTWP value of the co-frequency co-station cell of the current cell and a preset relative threshold. See below for details:
1) if the correlation coefficients of the main set RTWP value and the diversity RTWP value of the cell sharing the same frequency with the current cell are not lower than the preset relative threshold, it is indicated that the reverse connection of the antenna feeder equipment of the current cell is caused by other reasons, such as antenna feeder equipment failure and the like (for example, the performance and parameters of an antenna can not meet the use requirements); the joint is sealed tightly, so that water vapor enters the feeder line to influence signal emission; unreasonable installation positions, such as too close to an interference source, etc.; the power of the transmitter exceeds the rated power of the antenna, so that the antenna is overloaded or burnt; the original structure and performance parameters of the antenna are changed and the antenna is degraded and inaccurate when being subjected to foreign objects, typhoons, thunder and lightning and the like; the cable head is not firmly welded, signals are sometimes not and the like); this situation is not considered within the scope of the present embodiment.
2) If the correlation coefficient of the main set RTWP value and the diversity RTWP value of only one cell in the cell sharing the same frequency with the current cell is lower than the preset relative threshold, the antenna feeder equipment is reversely connected between the cell and the current cell.
For example, if it is assumed that in the co-frequency co-sited cell of cell 1, only the correlation coefficient between the RTWP value of the main set and the RTWP value of the diversity of cell 3 is lower than the preset relative threshold, and the correlation coefficient between the RTWP value of the main set and the RTWP value of the diversity of cell 2 is not lower than the preset relative threshold, it indicates that the main diversity of cell 3 and cell 1 is inversely connected.
3) If the correlation coefficients of the main set RTWP values and the diversity RTWP values of at least two cells are lower than a preset relative threshold in the cell sharing the same frequency with the current cell, respectively calculating the correlation coefficients of the main set RTWP values of the current cell and the diversity RTWP values of the cell sharing the same frequency with the current cell, and if the calculated correlation coefficients approach to 1, indicating that the main diversity of the cell sharing the same frequency corresponding to the correlation coefficients approach to 1 is inversely connected with the current cell.
For example, assuming that correlation coefficients of a main set RTWP value and a diversity RTWP value of a cell 2 and a cell 3 are all lower than a preset relative threshold in an intra-frequency co-sited cell of a cell 1, then further, a correlation coefficient of the main set RTWP value of the cell 1 and the diversity RTWP value of the cell 2, and a correlation coefficient of the main set RTWP value of the cell 1 and the diversity RTWP value of the cell 3 are calculated, and assuming that the correlation coefficients of the main set RTWP value of the cell 1 and the diversity RTWP value of the cell 2 are calculated to approach 1, that is, the correlation coefficient of the main set RTWP values of the cell 1 and the cell 2 is a maximum correlation coefficient term, it is indicated that main diversity connection occurs between the cell 1 and the cell 2.
By the step 101 and 106, a cell with antenna feeder equipment main diversity reverse connection with the current cell is determined according to the correlation coefficient between the main set RTWP value and the diversity RTWP value of the co-frequency co-sited cell of the current cell and the preset relative threshold.
Referring to fig. 7, the following steps are performed to confirm whether the current cell has a cell reverse problem, as detailed below:
201: acquiring optimized data and soft handover information of a same-frequency adjacent cell of a current cell within a time period to be measured;
wherein, the optimization data specifically includes: 1A event reporting times, 1A event reporting time, an active set cell identifier ID, RSCP (Received Signal Code Power) and Ec/No, and detection set cell identifier ID, RSCP, Ec/No, etc.;
the soft handover information specifically includes: soft handover event times, soft handover event time, active set cell identification ID, target cell identification ID;
as can be known by those skilled in the art, the 1A event refers to a relative threshold increase event, which indicates that the quality of a cell is close to the quality of a best cell or an active set in a WCDMA mobile communication network, and when a UE (user equipment) measures and finds that a primary common pilot channel of a cell in a detection set is better than a primary common pilot channel of a cell in a current active set, the UE reports a 1A event report through a measurement report; the active set refers to a cell in which soft handover connection exists between the active set and the UE, and the UE may be a mobile phone; the detection set refers to a cell list which is continuously measured by the UE, but the pilot Ec/Io value of the cell in the cell list is not large enough to be added into an active set; the target cell refers to a certain cell to which the UE moves from the active set cell, that is, the active set cell and the cell are in soft handover, and the cell is the target cell; the Ec/Io refers to chip energy/interference power spectral density; Ec/No, which refers to RSCP/RSSI (received Signal Strength Indication); the soft handover refers to the change of a communication CELL where the UE is located in a CELL-DCH state, and in a WCDMA system, the soft handover is performed among the same frequency channels;
202: acquiring an optimal cell according to the reporting times of the 1A event and a preset acquisition threshold;
wherein, it is assumed that 6 times of 1A event reports are obtained during the testing period, as shown in table 1,
TABLE 1
| 1A event | Reported |
| 1A | |
| 1、2 | |
| |
2、3 |
| |
1、3 |
| |
1、3 |
| |
3、2 |
| |
2、1 |
Assuming that the preset acquisition threshold set by the tester is 2 times, the number of reporting times of the first cell in the reporting cell in the testing time period is counted, as shown in table 2, for example, the number of 1A events reported by the cell as the optimal cell is counted, the number of 1A events occurring by the cell 1 as the optimal cell is 3 times, the number of 1A events occurring by the cell 2 as the optimal cell is 2 times, and the number of 1A events occurring by the cell 3 as the optimal cell is 1 time, according to the 1A event reporting threshold, 2 optimal cells exceeding the threshold, that is, the cell 1 and the cell 2, can be acquired, and the cell 1 and the cell 2 are the cells to be analyzed in the next stage. The present embodiment takes cell 1 as an example of a current cell to be analyzed, and is described below.
203: acquiring a forward neighbor set of the optimal cell according to the geographical position information of the optimal cell;
for example, if the optimal cell 1 is analyzed, a forward neighboring cell set of the optimal cell 1 is obtained according to the geographic location information (such as longitude and latitude, azimuth, and the like) of the optimal cell 1, which is shown in the cell diagram provided in fig. 8. The co-sited cells of the cell 1 are a cell 2 and a cell 3 respectively, and then the cells 2, 3, 4, 5, 6, 7 and 8 are all first-layer adjacent cells of the cell 1 (the first-layer adjacent cells are that small blocks are drawn on a map according to the longitude and latitude and the azimuth angle of the cells, and the cells with adjacent edges and vertexes are mutually first-layer adjacent cells); the forward neighbor set of cell 1 (the so-called forward neighbor set refers to the first-tier neighbor of a cell except the co-channel co-sited cell of the cell) is { first-tier neighbor of cell 1-co-sited cell of cell 1 } - { cells 4, 5, 6, 7, 8 }.
204: and determining the cell which is reversely connected with the optimal cell according to the soft switching times of the optimal cell and each cell of the forward adjacent cell set of the cell and the soft switching times of each cell of the forward adjacent cell set of the same-frequency co-sited cell of the optimal cell and the cell of the forward adjacent cell set of the cell. The method comprises the following specific steps:
firstly, counting the soft switching times of each cell of an optimal cell and a forward adjacent cell set of the optimal cell and the forward adjacent cell set of a co-frequency co-sited cell of the optimal cell and the self;
secondly, according to the statistics, if the soft switching times of each cell of the forward adjacent cell set of the optimal cell and a certain co-frequency co-sited cell are greater than the soft switching times of each cell of the optimal cell and the forward adjacent cell set of the optimal cell and are greater than the soft switching times of each cell of the forward adjacent cell set of the optimal cell and other co-frequency co-sited cells, determining the cell which is reversely connected with the optimal cell.
For example, the optimal cell is cell 1, and the co-frequency co-sited cells of the optimal cell 1 are respectively marked as cell 2 and cell 3; the number of soft handover occurring between the cell 1 and each cell of the forward neighboring cell set of the cell 1 is W1, for example, according to the collected soft handover information, it can be known that the cell ID of the active set is cell 1, and the cell ID of the target cell is cell 8, which means that 1 soft handover occurs between the cell 1 and the cell 8, and similarly, the number of soft handover occurring between the cell 1 and each cell of the forward neighboring cell set of the cell 1 can be known. Similarly, it can be known that the number of soft handoff times of each cell of the forward neighboring cell set of the cell 1 and the cell 2 is W2 times; the soft switching times of each cell of the forward adjacent cell sets of the cell 1 and the cell 3 are W3 times;
if W2 is greater than W1 and W2 is greater than W3, it indicates that cell 2 is misconnected with cell 1 and cell reversal occurs.
Obtaining a cell with antenna feeder equipment reversely connected according to the correlation coefficient of the main diversity RTWP values in all the cells, and further determining the cell with the antenna feeder equipment reversely connected with the cell with the antenna feeder equipment reversely connected according to the correlation coefficient of the main diversity RTWP values of the cells and a preset relative threshold; and detecting the cell which is reversely connected with the cell according to the soft switching times of the current cell and other cells.
The method for detecting the cell with the antenna feeder equipment reversely connected provided by the embodiment of the invention can realize centralized and automatic detection of the antenna feeder equipment with the antenna reversely connected of the mobile communication network base station; on-site investigation and road test are not needed, the cost of network construction and maintenance is effectively reduced, and the efficiency is improved; the information of each cell with the antenna feeder equipment reversely connected can be accurately judged; and the geographical position of the cell where the antenna feeder equipment is reversely connected is visually displayed.
Example 2
Referring to fig. 9, an embodiment of the present invention provides an apparatus for detecting a cell with an antenna feeder device connected reversely, where the apparatus includes:
an obtaining module 901, configured to obtain a main set RTWP value and a diversity RTWP value of each cell antenna of a base station in a time period to be measured;
a calculating module 902, configured to calculate a correlation coefficient between a dominant set RTWP value and a diversity RTWP value of each cell according to the dominant set RTWP value and the diversity RTWP value of each cell antenna of the base station acquired by the acquiring module 901;
and the processing module 903 is configured to determine a cell in which the antenna feeder equipment primary diversity is inversely connected with the current cell according to the correlation coefficient between the RTWP value of the primary set and the RTWP value of the diversity calculated by the calculating module 902.
Wherein, the calculating module 902 comprises:
an obtaining unit, configured to set a sampling interval, and respectively sample a main set RTWP value and a diversity RTWP value of each cell antenna of the base station in the test time period, which are obtained by the obtaining module 901, to obtain a sampling array of the main set RTWP value and the diversity RTWP value of the cell;
and the calculating unit is used for calculating the correlation coefficient of the main set RTWP value and the diversity RTWP value of each cell according to the sampling array of the main set RTWP value and the diversity RTWP value of the cell obtained by the obtaining unit.
Wherein, the processing module 903 comprises:
the first processing unit is used for acquiring a cell of which the correlation coefficient is smaller than a preset relative threshold according to the correlation coefficient of the RTWP value of the main set and the RTWP value of the diversity obtained by calculation and the preset relative threshold;
the second processing unit is used for acquiring the current cell in the cells of which the correlation coefficient acquired by the first processing unit is smaller than a preset relative threshold;
the third processing unit is used for acquiring the correlation coefficient of the main set RTWP value and the diversity RTWP value of the co-frequency co-sited cell of the current cell acquired by the second processing unit;
and the fourth processing unit is used for determining a cell with antenna feeder equipment main diversity reverse connection with the current cell according to the correlation coefficient of the main set RTWP value and the diversity RTWP value of the co-frequency co-sited cell of the current cell and a preset relative threshold.
Wherein the fourth processing unit includes:
the first processing subunit is used for respectively calculating the main set RTWP value of the current cell and the correlation coefficient of the diversity RTWP value of each cell in a plurality of same-frequency co-sited cells if the correlation coefficients of the main set RTWP value and the diversity RTWP value of the plurality of same-frequency co-sited cells are smaller than a preset relative threshold; determining a cell with antenna feeder equipment main diversity reverse connection with the current cell according to the calculated correlation coefficient of the main set RTWP value of the current cell and the calculated correlation coefficient of the diversity RTWP value of each cell in a plurality of co-frequency co-sited cells;
and the second processing subunit is used for determining that antenna feeder equipment main diversity connection exists between the co-frequency co-sited cell and the current cell if the co-frequency co-sited cell has the main set RTWP value and the diversity RTWP value, and the correlation coefficient of the main set RTWP value and the diversity RTWP value is smaller than a preset relative threshold.
The device provided by the embodiment of the invention can automatically realize the detection of the antenna feeder equipment in reverse connection, reduce the drive test cost and improve the working efficiency.
Example 3
Referring to fig. 10, an embodiment of the present invention provides an apparatus for detecting a cell with an antenna feeder device connected reversely, where the apparatus includes:
a first obtaining module 1001, configured to obtain optimized data and soft handover information of a co-frequency neighboring cell of each cell of a base station in a time period to be measured; wherein, the same-frequency adjacent region data comprises: 1A event reporting times, 1A event reporting time, an active set cell identification ID and a detection set cell ID; the soft handover information includes: time of soft handover event, active set cell identification ID, target cell identification ID;
a second obtaining module 1002, configured to obtain, according to the number of times of reporting the 1A event obtained by the first obtaining module 1001, a current cell in the optimal cell according to the number of times of reporting the 1A event and a preset obtaining threshold;
a processing module 1003, configured to determine a cell that is in reverse connection with a current cell according to the soft handover times of the current cell and each cell of the forward neighboring cell set of the current cell, and the soft handover times of each cell of the forward neighboring cell set of the current cell and the co-frequency co-sited cell of the current cell, which are obtained by the second obtaining module 1002.
The processing module 1003 includes:
a first processing unit, configured to, according to the soft handover times of the current cell and each cell of the forward neighboring cell set of the current cell and the forward neighboring cell set of the co-frequency co-sited cell of the current cell, and the soft handover times of each cell of the forward neighboring cell set of the co-frequency co-sited cell of the current cell and the first co-frequency co-sited cell of the current cell, which are obtained by the second obtaining module 1002, if the soft handover times of each cell of the forward neighboring cell set of the current cell and the first co-frequency co-sited cell of the current cell and the forward neighboring cell set; the soft switching times of all the cells of the forward adjacent cell set of the current cell and the first co-frequency co-sited cell of the current cell are greater than the soft switching times of all the cells of the forward adjacent cell set of the current cell and other co-frequency co-sited cells of the current cell and the first co-frequency co-sited cell of the current cell; determining that the first co-sited cell and the current cell are in reverse cell connection.
The second obtaining module 1002 includes:
the first acquisition unit is used for acquiring the 1A event reporting times of the optimal cell according to the 1A event reporting times;
the second acquisition unit is used for acquiring the optimal cell with the 1A event reporting times larger than the preset acquisition threshold in the optimal cell according to the preset acquisition threshold and the 1A event reporting times of the optimal cell;
and the third acquiring unit is used for acquiring the current cell in the optimal cell with the 1A event reporting times larger than the preset acquiring threshold.
The device provided by the embodiment of the invention can automatically realize the detection of the antenna feeder equipment in reverse connection, reduce the drive test cost and improve the working efficiency.
In summary, the technical scheme provided by the embodiment of the invention can realize centralized and automatic detection of the antenna reverse connection of the antenna feeder equipment of the mobile communication network base station; on-site investigation and road test are not needed, the cost of network construction and maintenance is effectively reduced, and the efficiency is improved; the information of each cell with the antenna feeder equipment reversely connected can be accurately judged; and the geographical position of the cell where the antenna feeder equipment is reversely connected is visually displayed.
As can be known by those skilled in the art, in a Mobile communication System, a diversity mode is generally adopted for a base station antenna, so that the technical scheme provided by the embodiment of the present invention is also applicable to GSM (Global System for Mobile Communications), CDMA (Code Division Multiple Access) and TD-SCDMA (time Division-Synchronous Code Division Multiple Access) systems. The only difference is that the measurement of the measurement quantity is not completely the same, as long as the received signal level information of the base station main antenna and the diversity receiving antenna is measured, the same statistical model and the same analysis method are adopted, the same effect can be realized in various mobile communication systems, the principle is similar, and the description is omitted.
All or part of the technical solutions provided by the above embodiments may be implemented by software programming, and the software program is stored in a readable storage medium, for example: hard disk, optical disk or floppy disk in a computer.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A method for detecting a cell with an antenna feeder device connected reversely is characterized by comprising the following steps:
acquiring a main set broadband receiving total power RTWP value and a diversity RTWP value of each cell antenna of a base station in a time period to be measured;
calculating a correlation coefficient of a main set RTWP value and a diversity RTWP value of each cell;
acquiring a cell in a cell with a correlation coefficient smaller than a preset relative threshold according to the correlation coefficient of the RTWP value of the main set and the RTWP value of the diversity obtained by calculation and the preset relative threshold, and acquiring a current cell from the cell with the correlation coefficient of the RTWP value of the main set and the RTWP value of the diversity smaller than the preset relative threshold;
acquiring correlation coefficients of a main set RTWP value and a diversity RTWP value of a co-frequency co-sited cell of the current cell;
if the correlation coefficient of the main set RTWP value and the diversity RTWP value of at least two same-frequency co-sited cells is smaller than the preset relative threshold, respectively calculating the correlation coefficient of the main set RTWP value of the current cell and the diversity RTWP value of each cell in the at least two same-frequency co-sited cells; determining a cell with the antenna feeder equipment main diversity reverse connection with the current cell according to the calculated main set RTWP value of the current cell and the correlation coefficient of each cell diversity RTWP value in the at least two same-frequency co-sited cells;
and if the correlation coefficient of the main set RTWP value and the diversity RTWP value of one common-frequency co-sited cell is smaller than the preset relative threshold, determining the cell which is inversely connected with the antenna feeder equipment main diversity of the current cell as the common-frequency co-sited cell.
2. The method of claim 1, wherein calculating a correlation coefficient for the dominant set RTWP values and the diversity RTWP values for each cell comprises:
setting a sampling interval, and respectively sampling a main set RTWP value and a diversity RTWP value of each cell antenna of the base station acquired in the time period to be detected to obtain a sampling array of the main set RTWP value and the diversity RTWP value of the cell;
and calculating the correlation coefficient of the main set RTWP value and the diversity RTWP value of each cell according to the sampling array of the main set RTWP value and the diversity RTWP value of the cell.
3. The method of claim 1, wherein the determining a cell that is inversely connected to the main diversity of the antenna feeder equipment in the current cell according to the calculated correlation coefficient between the RTWP value of the main set of the current cell and the RTWP value of each cell diversity in the at least two co-frequency co-sited cells comprises:
the maximum item of the correlation coefficient is obtained according to the calculated correlation coefficient of the main set RTWP value of the current cell and the diversity RTWP value of each cell in the at least two co-frequency co-sited cells;
and determining the co-frequency co-sited cell corresponding to the maximum correlation coefficient item as a cell with the antenna feeder equipment main diversity reverse connection with the current cell.
4. An apparatus for detecting a cell with antenna feeder equipment connected reversely, the apparatus comprising:
the acquisition module is used for acquiring a main set RTWP value and a diversity RTWP value of each cell antenna of the base station in a time period to be measured;
the calculation module is used for calculating the correlation coefficient of the main set RTWP value and the diversity RTWP value of each cell according to the main set RTWP value and the diversity RTWP value of each cell antenna of the base station, which are acquired by the acquisition module;
the first processing unit is used for acquiring a cell of which the correlation coefficient is smaller than a preset relative threshold according to the correlation coefficient of the RTWP value of the main set and the RTWP value of the diversity obtained by calculation and the preset relative threshold;
a second processing unit, configured to obtain a current cell in the cells whose correlation coefficients obtained by the first processing unit are smaller than the preset relative threshold;
the third processing unit is used for acquiring the correlation coefficient of the main set RTWP value and the diversity RTWP value of the co-frequency co-sited cell of the current cell acquired by the second processing unit;
a fourth processing unit comprising a first processing subunit and a second processing subunit,
the first processing subunit is configured to, if correlation coefficients of a master set RTWP value and a diversity RTWP value of at least two co-frequency co-sited cells are smaller than the preset relative threshold, respectively calculate a master set RTWP value of the current cell and a correlation coefficient of a diversity RTWP value of each cell of the at least two co-frequency co-sited cells; determining a cell with the antenna feeder equipment main diversity reverse connection with the current cell according to the calculated main set RTWP value of the current cell and the correlation coefficient of each cell diversity RTWP value in the at least two same-frequency co-sited cells;
and the second processing subunit is configured to determine, if there is one or only one co-frequency co-sited cell, that the cell with the antenna feeder equipment in reverse diversity connection with the current cell is the co-frequency co-sited cell, if a correlation coefficient between a main set RTWP value and a diversity RTWP value of the co-frequency co-sited cell is smaller than the preset relative threshold.
5. The apparatus of claim 4, wherein the computing module comprises:
the acquiring unit is used for setting a sampling interval, and respectively sampling the main set RTWP value and the diversity RTWP value of each cell antenna of the base station in the time period to be detected, which are acquired by the acquiring module, so as to obtain a sampling array of the main set RTWP value and the diversity RTWP value of the cell;
and the calculating unit is used for calculating the correlation coefficient of the master set RTWP value and the diversity RTWP value of each cell according to the sampling array of the master set RTWP value and the diversity RTWP value of the cell obtained by the obtaining unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008101864265A CN101505489B (en) | 2008-12-19 | 2008-12-19 | Method and apparatus for detecting cells with antenna feeders reverse connected |
| PCT/CN2009/074476 WO2010069201A1 (en) | 2008-12-19 | 2009-10-15 | Reversed cell detecting method and device for antenna feeder equipments |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101864265A CN101505489B (en) | 2008-12-19 | 2008-12-19 | Method and apparatus for detecting cells with antenna feeders reverse connected |
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| CN 201010578956 Division CN102026236B (en) | 2008-12-19 | 2008-12-19 | Method and device for detecting antenna feeder assembly reversely connected cell |
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| CN101505489B true CN101505489B (en) | 2011-02-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101505489B (en) * | 2008-12-19 | 2011-02-16 | 华为技术有限公司 | Method and apparatus for detecting cells with antenna feeders reverse connected |
| CN102118777B (en) * | 2010-01-06 | 2014-09-10 | 中兴通讯股份有限公司 | Method and system for detecting whether sector-area antenna of base station is connected reversely |
| CN101754249B (en) * | 2010-01-15 | 2014-01-01 | 中兴通讯股份有限公司 | Link balance detection method and system for sectors in wireless communication system |
| CN102075953B (en) * | 2010-11-29 | 2014-01-01 | 上海华为技术有限公司 | Method and device for judging reversed connection of antenna feeders between cells in same base station |
| CN102026251A (en) * | 2010-12-21 | 2011-04-20 | 中兴通讯股份有限公司 | Method and device for detecting neighborhood mismatching |
| CN102264085B (en) * | 2011-03-31 | 2014-08-20 | 中兴通讯股份有限公司 | Antenna inverse connection determination method and apparatus thereof |
| CN102440023B (en) * | 2011-10-31 | 2014-01-08 | 华为技术有限公司 | Detection method and device of antenna feeder cross |
| CN103188697B (en) * | 2011-12-29 | 2015-10-07 | 中国移动通信集团广东有限公司 | Identify that anti-method and apparatus is adjusted at wireless network antenna azimuth |
| CN102711128A (en) * | 2012-05-23 | 2012-10-03 | 上海电信工程有限公司 | Misconnection detection method of base station antenna feeder system |
| CN103118402A (en) * | 2012-10-10 | 2013-05-22 | 中兴通讯股份有限公司 | Method and base station of updating adjacent region relation |
| CN104066100B (en) * | 2013-03-23 | 2018-10-19 | 珠海世纪鼎利科技股份有限公司 | A kind of reversed detection method of antenna feeder based on drive test data |
| JP2018514983A (en) * | 2015-03-23 | 2018-06-07 | ノキア ソリューションズ アンド ネットワークス オサケユキチュア | Method and system for cross antenna feed detection |
| CN110086513B (en) * | 2018-01-25 | 2021-07-20 | 中兴通讯股份有限公司 | Method and device for checking reverse connection of MIMO base station antenna |
| JP6827971B2 (en) * | 2018-03-26 | 2021-02-10 | Kddi株式会社 | Terminal equipment, base station equipment, control methods, and programs for autonomous handover by terminal equipment |
| CN109257125B (en) * | 2018-11-22 | 2021-01-05 | 中国联合网络通信集团有限公司 | Method and device for detecting reverse connection of antenna feeder of base station |
| CN112543069B (en) * | 2019-09-23 | 2023-01-06 | 中兴通讯股份有限公司 | Method and device for detecting reverse connection of antenna feeder |
| CN111093214B (en) * | 2019-12-16 | 2023-07-18 | Oppo（重庆）智能科技有限公司 | Communication control method, device, storage medium and terminal |
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