CN106792925B - Method and device for searching ping-pong handover cell pair - Google Patents
Method and device for searching ping-pong handover cell pair Download PDFInfo
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- CN106792925B CN106792925B CN201510811511.6A CN201510811511A CN106792925B CN 106792925 B CN106792925 B CN 106792925B CN 201510811511 A CN201510811511 A CN 201510811511A CN 106792925 B CN106792925 B CN 106792925B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00837—Determination of triggering parameters for hand-off
- H04W36/008375—Determination of triggering parameters for hand-off based on historical data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
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Abstract
The application relates to the field of wireless technology, in particular to a method and a device for searching ping-pong handover cell pairs, which are used for solving the technical problem of low efficiency when searching ping-pong handover cell pairs in the prior art, and comprise the following steps: according to terminal signaling data of an open interface, acquiring the switching request times and the number of switching terminals of each cell, then determining the average switching times of each terminal of each cell and the average switching times of each terminal in the whole network, then determining all ping-pong switching characteristic cells, and aiming at each ping-pong switching characteristic cell, selecting all neighbors capable of forming a ping-pong switching cell pair from the neighboring cells, and forming the ping-pong switching cell pair with the ping-pong switching characteristic cells.
Description
Technical Field
The present application relates to the field of wireless technologies, and in particular, to a method and an apparatus for searching a ping-pong handover cell pair.
Background
Ping-pong handover is a typical handover phenomenon in a communication network, and is a so-called ping-pong handover, in which a mobile phone is handed over back and forth between a serving cell and an adjacent cell, and because ping-pong handover has negative effects on call quality and user perception, a ping-pong handover cell pair in the network can be searched in network optimization, and corresponding handover optimization can be carried out. In network optimization, a ping-pong handover cell pair needs to be searched by using handover performance statistics between cells, and a cell pair with ping-pong handover exists is searched according to the count of a ping-pong handover statistic item defined in the handover performance statistics.
In the prior art, a ping-pong handover performance statistics function provided by a partner device manufacturer is mainly attached to search for a ping-pong handover cell pair. However, in practical applications, not all manufacturers 'devices provide the handover performance statistics function, and for manufacturers' devices that do not provide the ping-pong handover performance statistics function, ping-pong handover performance statistics needs to be performed by themselves to find a ping-pong handover cell pair, and when the ping-pong handover performance is counted, the statistical analysis of such a large amount of data is difficult to be completed by currently configured devices and resources due to the huge amount of data counted. Therefore, the prior art has the limitations of manufacturers and equipment, increases the dependence on equipment collaborators, and increases the possibility of being restricted by the collaborators.
In summary, the prior art finds the technical problem of low efficiency when the ping-pong handover cell is synchronized.
Disclosure of Invention
The application provides a method for searching ping-pong handover cell pairs, which is used for solving the technical problem of low efficiency in the prior art of searching ping-pong handover cell pairs.
In one aspect, a method for searching for a ping-pong handover cell pair provided in an embodiment of the present application includes:
acquiring the switching request times and the number of switching terminals of each cell according to the terminal signaling data of the open interface;
determining the average switching times of each terminal of each cell and the average switching times of each terminal in the whole network according to the switching request times and the number of the switching terminals of each cell;
determining all ping-pong switching characteristic cells according to the average switching times of each terminal of each cell and the average switching times of each terminal of the whole network;
and aiming at each ping-pong handover characteristic cell, determining all ping-pong handover cell pairs of the ping-pong handover characteristic cell according to the number of times of handover from the ping-pong handover characteristic cell to each adjacent cell and the number of handover terminals and according to the average number of times of handover of each terminal of the ping-pong handover characteristic cell.
Optionally, the determining the average number of times of switching of each terminal in each cell and the average number of times of switching of each terminal in the whole network according to the number of times of switching requests and the number of switching terminals in each cell includes:
for a cell, taking the ratio of the switching request times of the cell in a set time length to the switching terminal number of the cell in the set time length as the average switching times of each terminal of the cell;
and taking the ratio of the sum of the switching request times of all the cells in the whole network in the set time length to the sum of the switching terminal number of all the cells in the whole network in the set time length as the average switching time of each terminal in the whole network.
Optionally, the determining all ping-pong handover feature cells according to the average handover times of each terminal in each cell and the average handover times of each terminal in the whole network includes:
and for a cell, if the ratio of the average switching times of each terminal of the cell to the average switching times of each terminal of the whole network in the set time length exceeds a first threshold value, determining that the cell is a ping-pong switching characteristic cell.
Optionally, the first threshold is determined according to the following:
for a cell, if the average switching times of each terminal of the cell is greater than the average switching times of each terminal of the whole network, determining the average switching times of each terminal of the cell as a first candidate value;
and selecting one from all the first candidate values, and determining the first threshold according to the first candidate value and the average switching times of each terminal in the whole network.
Optionally, the determining all ping-pong handover cell pairs of the ping-pong handover feature cell according to the number of times of handover from the ping-pong handover feature cell to each neighboring cell and the number of handover terminals and according to the average number of times of handover from each terminal of the ping-pong handover feature cell includes:
determining the average switching times of each terminal from the ping-pong switching characteristic cell to each adjacent cell according to the switching times and the number of the switching terminals from the ping-pong switching characteristic cell to each adjacent cell within the set time length;
and aiming at one adjacent cell of the ping-pong handover characteristic cell, if the ratio of the average switching times of each terminal from the ping-pong handover characteristic cell to the adjacent cell to the average switching times of each terminal of the ping-pong handover characteristic cell exceeds a second threshold value, determining that the ping-pong handover characteristic cell and the adjacent cell are a ping-pong handover cell pair.
Optionally, the second threshold is determined according to the following:
for an adjacent cell of the ping-pong handover feature cell, if the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell is greater than the average switching frequency of each terminal from the ping-pong handover feature cell, determining the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell as a second candidate value;
and selecting one from all the second candidate values, and determining the second threshold value according to the second candidate value and the average switching times of each terminal of the ping-pong switching characteristic cell.
On the other hand, an apparatus for searching for a ping-pong handover cell pair provided in an embodiment of the present application includes:
the acquiring unit is used for acquiring the switching request times and the number of switching terminals of each cell according to the terminal signaling data of the open interface;
a terminal switching frequency determining unit, configured to determine an average switching frequency of each terminal in each cell and an average switching frequency of each terminal in the entire network according to the switching request frequency and the number of switching terminals in each cell;
a ping-pong switching characteristic cell determining unit, configured to determine all ping-pong switching characteristic cells according to the average switching frequency of each terminal in each cell and the average switching frequency of each terminal in the entire network;
and a ping-pong handover cell pair determining unit, configured to determine, for each ping-pong handover feature cell, all ping-pong handover cell pairs of the ping-pong handover feature cell according to the number of times of handover from the ping-pong handover feature cell to each neighboring cell and the number of handover terminals and according to the average number of times of handover from each terminal of the ping-pong handover feature cell.
Optionally, the terminal switching number determining unit is specifically configured to:
for a cell, taking the ratio of the switching request times of the cell in a set time length to the number of switching terminals of the cell in the set time length as the average switching times of each terminal of the cell;
and taking the ratio of the sum of the switching request times of all the cells in the whole network in the set time length to the sum of the switching terminal number of all the cells in the whole network in the set time length as the average switching time of each terminal in the whole network.
Optionally, the ping-pong handover feature cell determining unit is specifically configured to:
for a cell, if the ratio of the average switching times of each terminal of the cell to the average switching times of each terminal of the whole network within a set time length exceeds a first threshold, determining that the cell is a ping-pong switching characteristic cell.
Optionally, the ping-pong handover feature cell determining unit is further configured to:
for a cell, if the average switching times of each terminal of the cell is greater than the average switching times of each terminal of the whole network, determining the average switching times of each terminal of the cell as a first candidate value;
and selecting one from all the first candidate values, and determining the first threshold according to the first candidate value and the average switching times of each terminal in the whole network.
Optionally, the ping-pong handover cell pair determining unit is specifically configured to:
determining the average switching times of each terminal from the ping-pong switching characteristic cell to each adjacent cell according to the switching times and the number of the switching terminals from the ping-pong switching characteristic cell to each adjacent cell within the set time length;
and aiming at one adjacent cell of the ping-pong handover characteristic cell, if the ratio of the average switching times of each terminal from the ping-pong handover characteristic cell to the adjacent cell to the average switching times of each terminal of the ping-pong handover characteristic cell exceeds a second threshold value, determining that the ping-pong handover characteristic cell and the adjacent cell are a ping-pong handover cell pair.
Optionally, the ping-pong handover cell pair determining unit is further configured to:
for an adjacent cell of the ping-pong handover feature cell, if the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell is greater than the average switching frequency of each terminal from the ping-pong handover feature cell, determining the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell as a second candidate value;
and selecting one from all the second candidate values, and determining the second threshold value according to the second candidate value and the average switching times of each terminal of the ping-pong switching characteristic cell.
The method provided by the embodiment of the application acquires the switching request times and the number of the switching terminals of each cell according to the terminal signaling data of an open interface, then determines the average switching times of each terminal of each cell and the average switching times of each terminal of the whole network, then determines all ping-pong switching characteristic cells, selects all neighbors capable of forming a ping-pong switching cell pair from the neighboring cells aiming at each ping-pong switching characteristic cell, and forms a ping-pong switching cell pair with the ping-pong switching characteristic cell, and has the following beneficial effects: because the required data are all from the open interface and do not need to interact with the manufacturer equipment, the method is not limited by the manufacturer equipment and does not depend on the switching performance statistic item of the manufacturer; secondly, the method searches ping-pong handover cells according to the characteristics of the ping-pong handover cells, avoids the analysis bottleneck caused by huge analysis data amount, and can comprehensively search ping-pong handover cell pairs of the existing network; finally, the analysis data is from an open interface, so that the method is suitable for searching the ping-pong switching cell pair of multiple networks in different regions of 2G, 3G and 4G, and is not limited by a network system and a switching type.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart of a method for searching a ping-pong handover cell pair according to an embodiment of the present application;
fig. 2 is a detailed flowchart of a method for searching ping-pong handover cell pairs according to an embodiment of the present application;
fig. 3 is a schematic diagram of an apparatus for searching ping-pong handover cell pairs according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiments of the present application will be described in further detail with reference to the drawings attached hereto.
As shown in fig. 1, a method for searching ping-pong handover cell pairs provided in the embodiment of the present application includes:
step 101, acquiring the number of switching requests and the number of switching terminals of each cell according to terminal signaling data of an open interface;
102, determining the average switching times of each terminal of each cell and the average switching times of each terminal in the whole network according to the switching request times and the number of the switching terminals of each cell;
103, determining all ping-pong switching characteristic cells according to the average switching times of each terminal of each cell and the average switching times of each terminal of the whole network;
and step 104, aiming at each ping-pong handover feature cell, determining all ping-pong handover cell pairs of the ping-pong handover feature cell according to the number of times of handover from the ping-pong handover feature cell to each adjacent cell, the number of handover terminals and the average number of times of handover of each terminal of the ping-pong handover feature cell.
In step 101, for a 2G network, the terminal signaling of the open interface may be a-port signaling, for a 3G network, the terminal signaling of the open interface may be Iu-port signaling, and for a 4G network, the terminal signaling of the open interface may be S1-port or X2-port signaling.
For a cell, the number of handover requests refers to the sum of the number of times that the cell requests handover to an adjacent cell, the number of handover terminals refers to the number of terminals in the cell, for example, cell a has 3 adjacent cells, cell a has 3 terminals in total, the number of times that a first terminal in cell a requests handover to a 1 st adjacent cell is 3, the number of times that a second terminal in cell a requests handover to a 2 nd adjacent cell is 5, the number of times that cell a requests handover is 8, and the number of times that cell a requests handover terminals is 3.
In step 102, according to the number of switching requests and the number of switching terminals of each cell, the average number of switching terminals of each cell and the average number of switching terminals of the whole network are determined.
In step 103, all ping-pong handover feature cells are determined according to the average number of times of handover of each terminal in each cell and the average number of times of handover of each terminal in the whole network. After determining the ping-pong handover characteristic cell, further screening only the ping-pong handover characteristic cell to find out the neighboring cell which can form a ping-pong characteristic cell pair with the ping-pong handover characteristic cell.
In step 104, the number of times of switching from the ping-pong handover feature cell to an adjacent cell is the number of times of requesting to switch from the ping-pong handover feature cell to the adjacent cell, and the number of the switching terminals is the number of the terminals requesting to switch to the adjacent cell.
The method provided by the embodiment of the application acquires the switching request times and the number of the switching terminals of each cell according to the terminal signaling data of an open interface, then determines the average switching times of each terminal of each cell and the average switching times of each terminal of the whole network, then determines all ping-pong switching characteristic cells, selects all neighbors capable of forming a ping-pong switching cell pair from the neighboring cells aiming at each ping-pong switching characteristic cell, and forms a ping-pong switching cell pair with the ping-pong switching characteristic cell, and has the following beneficial effects: because the required data are all from the open interface and do not need to interact with the manufacturer equipment, the method is not limited by the manufacturer equipment and does not depend on the switching performance statistic item of the manufacturer; secondly, the method searches ping-pong handover cells according to the characteristics of the ping-pong handover cells, avoids the analysis bottleneck caused by huge analysis data amount, and can comprehensively search ping-pong handover cell pairs of the existing network; finally, the analysis data is from an open interface, so that the method is suitable for searching the ping-pong switching cell pair of multiple networks in different regions of 2G, 3G and 4G, and is not limited by a network system and a switching type.
Specifically, in step 102, there are various ways to determine the average handover times per terminal per cell and the average handover times per terminal per network per cell according to the handover request times and the number of handover terminals per cell, for example, the sum of the handover request times in multiple time periods is used as the handover request times of one cell, and the number of terminals requesting handover in the multiple time periods is used as the number of handover terminals, and the method for selecting the time periods for determining the handover request times and the number of handover terminals is not limited in the present invention.
Optionally, the determining the average number of times of switching of each terminal in each cell and the average number of times of switching of each terminal in the whole network according to the number of times of switching requests and the number of switching terminals in each cell includes:
for a cell, taking the ratio of the switching request times of the cell in a set time length to the switching terminal number of the cell in the set time length as the average switching times of each terminal of the cell;
and taking the ratio of the sum of the switching request times of all the cells in the whole network in the set time length to the sum of the switching terminal number of all the cells in the whole network in the set time length as the average switching time of each terminal in the whole network.
The method takes the ratio of the switching request times of a cell in a set time length to the switching terminal number of the cell in the set time length as the average switching time of each terminal of the cell, and takes the ratio of the sum of the switching request times of all cells in the whole network in the set time length to the sum of the switching terminal number of all cells in the whole network in the set time length as the average switching time of each terminal in the whole network.
In the above method, there are many methods for selecting the set duration, and the value may be taken according to actual needs, for example, the value may be taken as 5 minutes, 1 hour, or 1 day, and the value may be taken as 5 minutes if convenience of data processing is taken into consideration, and the value may be taken as 1 day if data integrity is taken into consideration.
After the average number of times of handover of each terminal of each cell and the average number of times of handover of each terminal of the whole network are determined, all ping-pong handover feature cells need to be screened out from all cells, wherein the definition of the ping-pong handover feature cells is defined in advance to indicate that a certain cell can be considered as one of the ping-pong handover cell pair. The ping-pong handover feature cell may be defined in various ways, for example, the ping-pong handover feature cell is defined as a cell in which the average number of times of handover of each terminal is greater than the average number of times of handover of each terminal in the whole network, or may be defined as a cell in which the difference between the average number of times of handover of each terminal and the average number of times of handover of each terminal in the whole network is greater than a certain threshold, and the specific definition way is determined according to actual needs.
Optionally, the determining all ping-pong handover feature cells according to the average handover times of each terminal in each cell and the average handover times of each terminal in the whole network includes:
and for a cell, if the ratio of the average switching times of each terminal of the cell to the average switching times of each terminal of the whole network in the set time length exceeds a first threshold value, determining that the cell is a ping-pong switching characteristic cell.
According to the method, if the ratio of the average switching times of each terminal in a set time length to the average switching times of each terminal in the whole network of a cell exceeds a first threshold, the cell is defined as a ping-pong switching characteristic cell, for example, the average switching times of each terminal in the set time length of the cell B is 10, the average switching times of each terminal in the whole network is 4, the value of the first threshold is 2, and the cell B can be determined to be a ping-pong switching characteristic cell because 10/4 is greater than 2; for another example, the average number of times of switching of each terminal in the cell C is 6, the average number of times of switching of each terminal in the whole network is 4, the value of the first threshold is 2, and since 6/4 is less than 2, it can be determined that the cell C is not a ping-pong handover feature cell. In the above-mentioned cell for determining ping-pong handover characteristics, since the cell in which the ratio of the average number of times of handover of each terminal within the set time period to the average number of times of handover of each terminal in the whole network exceeds the first threshold is determined as the cell for ping-pong handover characteristics, which indicates that the average number of times of handover of each terminal in the cell is relatively large, the probability of ping-pong handover of the cell is very high, and therefore, the method can better find out the pair of ping-pong handover cells in the whole network.
In addition, there are many methods for taking the first threshold in the foregoing methods, for example, the first threshold may be taken as a specific value, for example, 1.5, 2, and the like, according to the actual situation, and the method for taking the first threshold provided in the embodiment of the present application is provided below.
Optionally, the first threshold is determined according to the following:
for a cell, if the average switching times of each terminal of the cell is greater than the average switching times of each terminal of the whole network, determining the average switching times of each terminal of the cell as a first candidate value;
and selecting one from all the first candidate values, and determining the first threshold according to the first candidate value and the average switching times of each terminal in the whole network.
In the method, if the average switching times of each terminal in a cell is greater than the average switching times of each terminal in the whole network, the average switching times of each terminal in the cell is determined as a first candidate value, one of the first candidate values is selected, and the first threshold value is determined according to the first candidate value and the average switching times of each terminal in the whole network. For example, the total network has 1000 cells, the average number of times of handover of each terminal in the total network is 100, and the average number of times of handover of each terminal in 400 cells in 1000 cells is greater than 100, then the average number of times of handover of each terminal in the 400 cells is taken as a first candidate value, and then a first candidate value is selected according to actual needs, for example, the average number of times of handover of each terminal in cell D in the candidate value is 150, and then the first threshold value is determined together with the average number of times of handover of each terminal in the total network, which is 100. There are many ways to determine the first threshold value by using the first candidate value and the average number of times of switching of each terminal in the whole network, and one way used in the embodiment of the present application is given below.
Optionally, the average switching times of each terminal in the whole network is Y0Selecting one value from the first candidate values as YNThen the first threshold is determined to be 1+ α, where α ═ Y (Y)N-Y0)/Y0Thus if one cell YiThe average switching frequency of each terminal with the whole network is Y0Is greater than the first threshold, cell Y is assignediDetermined as a ping-pong handover feature cell, i.e., if Yi>Y01+ α), then cell YiAnd determining the cell as a ping-pong handover characteristic cell. Specific values of the first threshold are exemplified below, for example, Y0＝100，YNWhen the value is 150, α is 0.5, and the first threshold value is 1.5.
The method provides a specific method for determining ping-pong handover characteristic cells, i.e. if each terminal of a cell switches times YiThe average switching frequency of each terminal with the whole network is Y0Satisfy Yi>Y01+ α), then cell YiDetermining as a ping-pong handover feature cell, wherein 1+ α is a first threshold, and α ═ YN-Y0)/Y0And a value Y selected from the first candidate valuesNThe method can be selected according to actual needs, has good practical application capability and flexibility, and can well determine ping-pong handover characteristic cells in the whole network and truly reflect ping-pong handover characteristics.
Determining all ping-pong handover feature cells from the whole network, then determining ping-pong handover cell pairs according to each ping-pong handover feature cell and the neighboring cell of the ping-pong handover feature cell, for example, 1000 cells are shared in the whole network, 200 ping-pong handover characteristic cells are screened out, a further search is then made for ping-pong handover cell pairs for each ping-pong handover feature cell, e.g., for cell E belonging to one of 200 ping-pong handover feature cells, and cell E having 20 neighbor cells, for cell E, then it is necessary to find out the cell satisfying certain conditions with the cell E from the 20 neighboring cells, and determine it as the ping-pong handover cell pair, for example, 5 cells out of the 20 neighboring cells satisfy the search condition with the cell E, then cell E and these 5 neighboring cells form ping-pong handover cell pairs, respectively, i.e., cell E has 5 ping-pong handover cell pairs. For how to determine the ping-pong handover cell pair of a ping-pong handover feature cell, there are many defining methods, for example, if the number of times that a ping-pong handover feature cell requests handover from a neighboring cell is greater than a threshold value, the ping-pong handover feature cell and the neighboring cell can be determined as the ping-pong handover cell pair, and so on.
In step 104, a method for determining ping-pong handover cell pairs is provided, that is, all ping-pong handover cell pairs of a ping-pong handover feature cell are determined according to the number of times of handover from the ping-pong handover feature cell to each neighboring cell and the number of handover terminals and according to the average number of times of handover from each terminal of the ping-pong handover feature cell, which is described in detail below.
Optionally, the determining all ping-pong handover cell pairs of the ping-pong handover feature cell according to the number of times of handover from the ping-pong handover feature cell to each neighboring cell and the number of handover terminals and according to the average number of times of handover from each terminal of the ping-pong handover feature cell includes:
determining the average switching times of each terminal from the ping-pong switching characteristic cell to each adjacent cell according to the switching times and the number of the switching terminals from the ping-pong switching characteristic cell to each adjacent cell within the set time length;
and aiming at one adjacent cell of the ping-pong handover characteristic cell, if the ratio of the average switching times of each terminal from the ping-pong handover characteristic cell to the adjacent cell to the average switching times of each terminal of the ping-pong handover characteristic cell exceeds a second threshold value, determining that the ping-pong handover characteristic cell and the adjacent cell are a ping-pong handover cell pair.
In the method, for a ping-pong handover feature cell, first, an average number of times of handover of each terminal of the ping-pong handover feature cell to each neighboring cell is determined, for example, there are 3 neighboring cells F1, F2, and F3 in the ping-pong handover feature cell F, and an average number of times of handover of each terminal of the ping-pong handover feature cell F to the neighboring 3 cells is determined within a set time period, for example, the average number of times of handover of each terminal of the cell F to the cell F1 is 20, the average number of times of handover of each terminal of the cell F to the cell F2 is 26, and the average number of times of handover of each terminal of the cell F to the cell F3 is 21.
Next, for the ping-pong handover feature cell and one of the neighboring cells, it is determined whether the ping-pong handover feature cell and the neighboring cell form a ping-pong handover cell pair, and the specific method is as follows: and if the ratio of the average switching times of each terminal from the ping-pong switching characteristic cell to the adjacent cell to the average switching times of each terminal of the ping-pong switching characteristic cell exceeds a second threshold value, determining that the ping-pong switching characteristic cell and the adjacent cell are a ping-pong switching cell pair. For example, ping-pong handover feature cell i has N neighboring cells, N1,N2,...,NnFor one of the neighbouring cells NjCell i to cell NjThe number of switching requests in a set time length is AiNjPing-pong handover feature cell i to cell NjThe number of the switching terminals in the set duration is BiNjThen determining ping-pong handover characteristic cell i to cell NjAverage number of switching times per terminal YiNj＝AiNj/BiNjThe average switching times of each terminal of the ping-pong switching characteristic cell i is Y0If Y is equal toiNjAnd Y0When the ratio of the first threshold to the second threshold is greater than the second threshold, determining a ping-pong handover characteristic cell i and an adjacent cell NjForming a ping-pong handover cell pair. The method takes the average switching times of each terminal from one ping-pong switching characteristic cell to the adjacent cell and the ratio of the average switching times of each terminal of the ping-pong switching characteristic cell to the adjacent cell larger than a second threshold value as the basis for checking whether the ping-pong switching characteristic cell and the adjacent cell are the ping-pong switching cell pair or not, and fully considers the switching relation between the ping-pong switching characteristic cell and the adjacent cell, thereby well determining the ping-pong characteristic cell pair in the whole network.
There are many methods for taking the second threshold, for example, the second threshold may be a specific value, for example, 1.5, 2, and the like, according to the actual situation, and the method for taking the second threshold provided in the embodiment of the present application is provided below.
Optionally, the second threshold is determined according to the following:
for an adjacent cell of the ping-pong handover feature cell, if the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell is greater than the average switching frequency of each terminal from the ping-pong handover feature cell, determining the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell as a second candidate value;
and selecting one from all the second candidate values, and determining the second threshold value according to the second candidate value and the average switching times of each terminal of the ping-pong switching characteristic cell.
In the method, if the average switching frequency of each terminal from one ping-pong switching characteristic cell to the adjacent cell is greater than the average switching frequency of each terminal from the ping-pong switching characteristic cell, the average switching frequency of each terminal from the ping-pong switching characteristic cell to the adjacent cell is determined as a second candidate value, then one terminal is selected from the second candidate value, and the second threshold value is determined according to the candidate value and the average switching frequency of each terminal from the ping-pong switching characteristic cell. For example, the ping-pong handover feature cell i has 20 neighboring cells, the average number of times of handover of each terminal of the ping-pong handover feature cell i is 100, 9 cells among the 20 cells satisfy that the average number of times of handover of each terminal of the ping-pong handover feature cell to the neighboring cell is greater than 100, the average number of times of handover of the ping-pong handover feature cell to each terminal of the 9 cells is taken as a candidate value, and then a second candidate value is selected according to actual needs, for example, the average number of times of handover of each terminal of the ping-pong handover feature cell to the neighboring cell k in the second candidate value is 120, and then the second threshold is determined together with the average number of times of handover of each terminal of the ping-pong handover feature cell i 100. There are many ways to determine the second threshold value by using the second candidate value and the average handover times per terminal of the ping-pong handover feature cell, and a way used in the embodiments of the present application is given below.
Optionally, the average number of times of handover per terminal of the ping-pong handover feature cell i is YiSelecting one value from the second candidate values as YiNkI.e. average number of handovers per terminal Y of ping-pong handover feature cell i to neighbor cell kiNkDetermining the second threshold to be 1+ β, where β ═ YiNk-Yi)/YiThus if the ping-pong handover feature cell i switches to the average number of handovers per terminal Y of the neighboring cell jiNjThe average switching times of each terminal with ping-pong switching characteristic cell i is YiIf the ratio of the first cell to the second cell is greater than the second threshold value, determining that the ping-pong handover characteristic cell i and the adjacent cell j form a ping-pong handover cell pair, that is, if Y is greater than the first threshold valueiNj>Yi(1+ β), determining ping-pong handover feature cell i and neighboring cell j to form a ping-pong handover cell pair. Specific values of the second threshold are exemplified below, for example, Yi＝100，YiNkWhen the threshold value is 200, β is 1, and the second threshold value is 2.
The method provides a specific method for determining ping-pong handover cell pairs, namely if a ping-pong handover characteristic cell i and its neighboring cell j satisfy YiNj>Yi(1+ β), the ping-pong handover feature cell i and the neighboring cell j form a ping-pong handover cell pair, where 1+ β is the second threshold, and β ═ YiNk-Yi)/YiAnd a value Y selected from the second candidate valuesiNkThe method can be selected according to actual needs, has good practical application capability and flexibility, and can well determine the ping-pong switching cell pair of the ping-pong switching characteristic cell.
The method provided by the embodiment of the application acquires the switching request times and the number of the switching terminals of each cell according to the terminal signaling data of an open interface, then determines the average switching times of each terminal of each cell and the average switching times of each terminal of the whole network, then determines all ping-pong switching characteristic cells, selects all neighbors capable of forming a ping-pong switching cell pair from the neighboring cells aiming at each ping-pong switching characteristic cell, and forms a ping-pong switching cell pair with the ping-pong switching characteristic cell, and has the following beneficial effects: because the required data are all from the open interface and do not need to interact with the manufacturer equipment, the method is not limited by the manufacturer equipment and does not depend on the switching performance statistic item of the manufacturer; secondly, the method searches ping-pong handover cells according to the characteristics of the ping-pong handover cells, avoids the analysis bottleneck caused by huge analysis data amount, and can comprehensively search ping-pong handover cell pairs of the existing network; finally, the analysis data is from an open interface, so that the method is suitable for searching the ping-pong switching cell pair of multiple networks in different regions of 2G, 3G and 4G, and is not limited by a network system and a switching type.
The method for searching ping-pong handover cell pairs provided by the embodiment of the present application is described in detail below. As shown in fig. 2, a detailed flowchart of a method for searching for a ping-pong handover cell pair according to an embodiment of the present application is provided.
Step 201, acquiring the number of switching requests and the number of switching terminals of each cell according to terminal signaling data of an open interface;
step 202, according to the switching request times and the number of the switching terminals of each cell, taking the ratio of the switching request times of the cell in the set time length to the number of the switching terminals of the cell in the set time length as the average switching times of each terminal of the cell, and taking the ratio of the sum of the switching request times of all the cells of the whole network in the set time length to the sum of the number of the switching terminals of all the cells of the whole network in the set time length as the average switching times of each terminal of the whole network;
step 203, determining the cell in which the ratio of the average switching times of each terminal of the cell in a set time length to the average switching times of each terminal of the whole network exceeds a first threshold value as a ping-pong switching characteristic cell;
step 204, for an adjacent cell of a ping-pong handover feature cell, if the ratio of the average number of times of handover from the ping-pong handover feature cell to each terminal of the adjacent cell to the average number of times of handover from each terminal of the ping-pong handover feature cell to each terminal of the adjacent cell exceeds a second threshold, determining that the ping-pong handover feature cell and the adjacent cell are a ping-pong handover cell pair.
The method provided by the embodiment of the application acquires the switching request times and the number of the switching terminals of each cell according to the terminal signaling data of an open interface, then determines the average switching times of each terminal of each cell and the average switching times of each terminal of the whole network, then determines all ping-pong switching characteristic cells, selects all neighbors capable of forming a ping-pong switching cell pair from the neighboring cells aiming at each ping-pong switching characteristic cell, and forms a ping-pong switching cell pair with the ping-pong switching characteristic cell, and has the following beneficial effects: because the required data are all from the open interface and do not need to interact with the manufacturer equipment, the method is not limited by the manufacturer equipment and does not depend on the switching performance statistic item of the manufacturer; secondly, the method searches ping-pong handover cells according to the characteristics of the ping-pong handover cells, avoids the analysis bottleneck caused by huge analysis data amount, and can comprehensively search ping-pong handover cell pairs of the existing network; finally, the analysis data is from an open interface, so that the method is suitable for searching the ping-pong switching cell pair of multiple networks in different regions of 2G, 3G and 4G, and is not limited by a network system and a switching type.
Based on the same technical concept, the embodiment of the application also provides a device for searching ping-pong handover cell pairs. The device for searching ping-pong handover cell pairs provided by the embodiment of the application is shown in fig. 3.
An obtaining unit 301, configured to obtain, according to terminal signaling data of an open interface, the number of times of handover requests and the number of handover terminals of each cell;
a terminal switching frequency determining unit 302, configured to determine an average switching frequency of each terminal in each cell and an average switching frequency of each terminal in the entire network according to the switching request frequency and the number of switching terminals in each cell;
a ping-pong handover feature cell determining unit 303, configured to determine all ping-pong handover feature cells according to the average number of times of handover of each terminal in each cell and the average number of times of handover of each terminal in the entire network;
a ping-pong handover cell pair determining unit 304, configured to determine, for each ping-pong handover feature cell, all ping-pong handover cell pairs of the ping-pong handover feature cell according to the number of times of handover from the ping-pong handover feature cell to each neighboring cell and the number of handover terminals, and according to the average number of times of handover from each terminal of the ping-pong handover feature cell.
Optionally, the terminal switching number determining unit 302 is specifically configured to:
for a cell, taking the ratio of the switching request times of the cell in a set time length to the switching terminal number of the cell in the set time length as the average switching times of each terminal of the cell;
and taking the ratio of the sum of the switching request times of all the cells in the whole network in the set time length to the sum of the switching terminal number of all the cells in the whole network in the set time length as the average switching time of each terminal in the whole network.
Optionally, the ping-pong handover feature cell determining unit 303 is specifically configured to:
and for a cell, if the ratio of the average switching times of each terminal of the cell to the average switching times of each terminal of the whole network in the set time length exceeds a first threshold value, determining that the cell is a ping-pong switching characteristic cell.
Optionally, the ping-pong handover feature cell determining unit 303 is further configured to:
for a cell, if the average switching times of each terminal of the cell is greater than the average switching times of each terminal of the whole network, determining the average switching times of each terminal of the cell as a first candidate value;
and selecting one from all the first candidate values, and determining the first threshold according to the first candidate value and the average switching times of each terminal in the whole network.
Optionally, the ping-pong handover cell pair determining unit 304 is specifically configured to:
determining the average switching times of each terminal from the ping-pong switching characteristic cell to each adjacent cell according to the switching times and the number of the switching terminals from the ping-pong switching characteristic cell to each adjacent cell within the set time length;
and aiming at one adjacent cell of the ping-pong handover characteristic cell, if the ratio of the average switching times of each terminal from the ping-pong handover characteristic cell to the adjacent cell to the average switching times of each terminal of the ping-pong handover characteristic cell exceeds a second threshold value, determining that the ping-pong handover characteristic cell and the adjacent cell are a ping-pong handover cell pair.
Optionally, the ping-pong handover cell pair determining unit 304 is further configured to:
for an adjacent cell of the ping-pong handover feature cell, if the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell is greater than the average switching frequency of each terminal from the ping-pong handover feature cell, determining the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell as a second candidate value;
and selecting one from all the second candidate values, and determining the second threshold value according to the second candidate value and the average switching times of each terminal of the ping-pong switching characteristic cell.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (8)
1. A method for searching ping-pong handover cell pairs, comprising:
acquiring the switching request times and the number of switching terminals of each cell according to the terminal signaling data of the open interface;
determining the average switching times of each terminal of each cell and the average switching times of each terminal in the whole network according to the switching request times and the number of the switching terminals of each cell;
aiming at a cell, if the ratio of the average switching times of each terminal of the cell to the average switching times of each terminal of the whole network within a set time length exceeds a first threshold value, determining that the cell is a ping-pong switching characteristic cell;
for each ping-pong handover feature cell, determining the average switching times of each terminal from the ping-pong handover feature cell to each adjacent cell according to the switching times and the number of the switching terminals from the ping-pong handover feature cell to each adjacent cell within the set time length;
and aiming at one adjacent cell of the ping-pong handover characteristic cell, if the ratio of the average switching times of each terminal from the ping-pong handover characteristic cell to the adjacent cell to the average switching times of each terminal of the ping-pong handover characteristic cell exceeds a second threshold value, determining that the ping-pong handover characteristic cell and the adjacent cell are a ping-pong handover cell pair.
2. The method of claim 1, wherein the determining the average number of handover per terminal per cell and the average number of handover per terminal per network per cell according to the number of handover requests per cell and the number of handover terminals comprises:
for a cell, taking the ratio of the switching request times of the cell in a set time length to the switching terminal number of the cell in the set time length as the average switching times of each terminal of the cell;
and taking the ratio of the sum of the switching request times of all the cells in the whole network in the set time length to the sum of the switching terminal number of all the cells in the whole network in the set time length as the average switching time of each terminal in the whole network.
3. The method of claim 1, wherein the first threshold is determined according to:
for a cell, if the average switching times of each terminal of the cell is greater than the average switching times of each terminal of the whole network, determining the average switching times of each terminal of the cell as a first candidate value;
and selecting one from the first candidate values of all the cells, and determining the first threshold according to the first candidate value and the average switching times of each terminal in the whole network.
4. The method of claim 1, wherein the second threshold is determined according to:
for an adjacent cell of the ping-pong handover feature cell, if the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell is greater than the average switching frequency of each terminal from the ping-pong handover feature cell, determining the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell as a second candidate value;
and selecting one from all the second candidate values, and determining the second threshold value according to the second candidate value and the average switching times of each terminal of the ping-pong switching characteristic cell.
5. An apparatus for searching ping-pong handover cell pairs, comprising:
the acquiring unit is used for acquiring the switching request times and the number of switching terminals of each cell according to the terminal signaling data of the open interface;
a terminal switching frequency determining unit, configured to determine an average switching frequency of each terminal in each cell and an average switching frequency of each terminal in the entire network according to the switching request frequency and the number of switching terminals in each cell;
a ping-pong handover feature cell determining unit, configured to determine, for a cell, that the cell is a ping-pong handover feature cell if a ratio of an average number of handover per terminal of the cell to an average number of handover per terminal of a whole network within a set time period exceeds a first threshold;
a ping-pong handover cell pair determining unit, configured to determine, for each ping-pong handover feature cell, an average number of times of handover of the ping-pong handover feature cell to each neighboring cell according to the number of times of handover of the ping-pong handover feature cell to each neighboring cell and the number of handover terminals within the set time duration;
and aiming at one adjacent cell of the ping-pong handover characteristic cell, if the ratio of the average switching times of each terminal from the ping-pong handover characteristic cell to the adjacent cell to the average switching times of each terminal of the ping-pong handover characteristic cell exceeds a second threshold value, determining that the ping-pong handover characteristic cell and the adjacent cell are a ping-pong handover cell pair.
6. The apparatus of claim 5, wherein the terminal switching number determining unit is specifically configured to:
for a cell, taking the ratio of the switching request times of the cell in a set time length to the switching terminal number of the cell in the set time length as the average switching times of each terminal of the cell;
and taking the ratio of the sum of the switching request times of all the cells in the whole network in the set time length to the sum of the switching terminal number of all the cells in the whole network in the set time length as the average switching time of each terminal in the whole network.
7. The apparatus of claim 5, wherein the ping-pong handover feature cell determining unit is further configured to:
for a cell, if the average switching times of each terminal of the cell is greater than the average switching times of each terminal of the whole network, determining the average switching times of each terminal of the cell as a first candidate value;
and selecting one from the first candidate values of all the cells, and determining the first threshold according to the first candidate value and the average switching times of each terminal in the whole network.
8. The apparatus of claim 5, wherein the ping-pong handover cell pair determining unit is further configured to:
for an adjacent cell of the ping-pong handover feature cell, if the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell is greater than the average switching frequency of each terminal from the ping-pong handover feature cell, determining the average switching frequency of each terminal from the ping-pong handover feature cell to the adjacent cell as a second candidate value;
and selecting one from all the second candidate values, and determining the second threshold value according to the second candidate value and the average switching times of each terminal of the ping-pong switching characteristic cell.
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| CN1717091A (en) * | 2004-07-02 | 2006-01-04 | 现观科技股份有限公司 | Method for detecting ping-pong handover effect of cellular network |
| CN102123418A (en) * | 2011-03-17 | 2011-07-13 | 北京拓明科技有限公司 | Ping-pong handover positioning method based on A-interface signaling |
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