CN115551028B - Cell switching method, device, electronic equipment and storage medium - Google Patents
Cell switching method, device, electronic equipment and storage medium Download PDFInfo
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- 238000000926 separation method Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 5
- 238000007476 Maximum Likelihood Methods 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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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
- H04W36/0085—Hand-off measurements
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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
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality 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
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
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Abstract
The application discloses a cell switching method, a cell switching device, electronic equipment and a storage medium, belongs to the field of communication, and solves the problem that an optimal switching cell cannot be determined when cell switching is performed in the related technology. The method comprises the following steps: dividing the road section to be tested into at least one grid; determining Reference Signal Received Power (RSRP) and signal-to-noise ratio (SINR) of each cell aiming at each cell with sampling points falling into a target grid, wherein the target grid is any one of the at least one grid; determining a switching rate of each cell in the target grid based on the RSRP and the SINR, wherein the switching rate characterizes a transmission rate of a signal; and determining the cell meeting the preset condition in the target grid as the cell to be switched corresponding to the target grid, wherein the preset condition is that the switching rate is maximum or the switching rate is optimal.
Description
Technical Field
The application belongs to the field of communication, and particularly relates to a cell switching method, a cell switching device, electronic equipment and a storage medium.
Background
Road trunk scenes such as subways, high-speed railways, high-speed roads, urban Bus rapid transit systems (Bus RAPID TRANSIT, BRT) and the like are important image windows of wireless network quality. Because the terminal moves fast, in order to ensure the service quality and user perception, the switching performance optimization is always an important work of network optimization.
In the related art, the rationality judgment of the cell switching between every two cells is generally made based on the analysis of the cells one by one, so that the optimal inter-cell switching sequence of the whole road cannot be determined, and the whole road perceives the optimal switching cell scheme.
Disclosure of Invention
The embodiment of the application provides a cell switching method, a cell switching device, electronic equipment and a storage medium, which can solve the problem that an optimal switching cell cannot be determined when cell switching is performed in the related art.
In a first aspect, an embodiment of the present application provides a cell handover method, where the method includes: dividing the road section to be tested into at least one grid; determining Reference Signal Received Power (RSRP) and signal-to-noise ratio (SINR) of each cell aiming at each cell with sampling points falling into a target grid, wherein the target grid is any one of the at least one grid; determining a switching rate of each cell in the target grid based on the RSRP and the SINR, wherein the switching rate characterizes a transmission rate of a signal; and determining the cell meeting the preset condition in the target grid as the cell to be switched corresponding to the target grid, wherein the preset condition is that the switching rate is maximum or the switching rate is optimal.
In a second aspect, an embodiment of the present application provides a cell handover apparatus, including: the separation module is used for separating the road section to be tested into at least one grid; a first determining module, configured to determine, for each cell having a sampling point falling into a target grid, a reference signal received power RSRP and a signal-to-noise ratio SINR of the each cell, where the target grid is any one of the at least one grid; a second determining module, configured to determine a switching rate of each cell in the target grid based on the RSRP and the SINR, where the switching rate characterizes a transmission rate of a signal; and the third determining module is used for determining the cell meeting the preset condition in the target grid as the cell to be switched corresponding to the target grid, wherein the preset condition is that the switching rate is maximum or the switching rate is optimal.
In a third aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the steps of the method according to the first aspect when executed by the processor.
In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor perform the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.
In the embodiment of the application, the road section to be tested is divided into at least one grid; determining Reference Signal Received Power (RSRP) and signal-to-noise ratio (SINR) of each cell aiming at each cell with sampling points falling into a target grid, wherein the target grid is any one of the at least one grid; determining a switching rate of each cell in the target grid based on the RSRP and the SINR, wherein the switching rate characterizes a transmission rate of a signal; and determining the cell meeting the preset condition in the target grid as the cell to be switched corresponding to the target grid, wherein the preset condition is that the switching rate is the maximum or the switching rate is optimal, and determining the cell with the optimal switching rate corresponding to each grid in the road section to be tested, so that the terminal can be continuously switched to the cell with the optimal switching rate in the process that the terminal passes through the road section to be tested, and the problem that the optimal switching cell cannot be determined when the cell is switched in the related art is solved.
Drawings
Fig. 1 is a schematic flow chart of a cell handover method according to an embodiment of the present application;
Fig. 2 is a flow chart of another cell handover method according to an embodiment of the present application;
fig. 3 is a schematic diagram of a cell switching apparatus according to an embodiment of the present application;
fig. 4 is a schematic structural view of an electronic device according to another embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The following describes in detail a cell handover method, a cell handover device, an electronic device, and a storage medium according to embodiments of the present application through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
Specifically, road trunk scenes such as subways, high-speed railways, high-speed, urban arterial roads, urban BRT (BRT) overhead and the like are important image windows of wireless network quality. Because the terminal moves fast, in order to ensure the service quality and user perception, the switching performance optimization is always an important work of network optimization.
In the related art, first, the judgment of the rationality of the road switching cell is determined based on manual analysis, and the judgment is seriously dependent on manual experience; second, technicians typically make a per-cell handover rationality judgment based on a cell-by-cell analysis, so that the optimal inter-cell handover sequence for the whole road cannot be determined, and the road overall perception optimal handover cell scheme is output.
In this regard, the application provides for dividing the road section to be tested into at least one grid; determining Reference Signal Received Power (RSRP) and signal-to-noise ratio (SINR) of each cell covering a target grid, wherein the target grid is any one of the at least one grid; determining a switching rate of each cell in the target grid based on the RSRP and the SINR, wherein the switching rate characterizes a transmission rate of a signal; and determining the cell meeting the preset condition in the target grid as the cell to be switched corresponding to the target grid, wherein the preset condition is that the switching rate is the maximum or the switching rate is optimal, and the cell with the optimal switching rate corresponding to each grid in the road section to be tested can be determined, so that the terminal can be continuously switched to the cell with the optimal switching rate in the process that the terminal passes through the road section to be tested, the problem that the judgment of the rationality of the road switching cell in the related technology is seriously dependent on manual experience is solved, and meanwhile, the problem that the optimal switching cell cannot be determined when the cell is switched is solved.
Fig. 1 shows a cell handover method according to an embodiment of the present invention, which may be performed by a server, the method comprising the steps of:
step 101: the road section to be tested is divided into at least one grid.
Specifically, the road section to be tested is a road section. The shape of the grid may be square, rectangular, irregular, or the like, and is not particularly limited herein. For example, the grid may be square with L x L meters.
Optionally, at least one grid may also be numbered, e.g., grids may be numbered sequentially 1,2,3 … …, n, n+1, n+2, … … in the order of separation.
Step 102: and determining Reference Signal Received Power (RSRP) and signal to noise ratio (SINR) of each cell aiming at each cell with sampling points falling into a target grid.
Wherein the target grid is any one of the at least one grid.
Specifically, the matching relationship between the sampling points and the boundary of the target grid can be determined according to the longitude/latitude of the sampling points of each cell in the road section to be tested, and then the sampling points can be marked with the serial numbers of the target grid.
Further, the reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) and the signal-to-noise ratio (Signal to Interference plus Noise Ratio, SINR) of each cell in the target grid may be sampled according to the sampling point of each cell in the target grid.
Step 103: based on the RSRP and the SINR, a handover rate of the respective cell within the target grid is determined.
Wherein the switching rate characterizes the transmission rate of the signal.
Step 104: and determining the cell meeting the preset condition in the target grid as the cell to be switched corresponding to the target grid.
The preset condition is that the switching rate is maximum or the switching rate is optimal.
Optionally, the maximum switching rate or the optimal switching rate corresponding to each grid in the road section to be tested can be determined, so that an optimal switching rate sequence of the road section to be tested can be determined, wherein the optimal switching rate sequence comprises the maximum switching rate or the optimal switching rate corresponding to each grid; on the basis, an optimal cell switching sequence when the terminal passes through the road section to be tested can be determined, wherein the optimal cell switching sequence comprises a sequence of cells with maximum switching rate or optimal switching rate corresponding to each grid.
Specifically, a cell with the largest switching rate or the optimal switching rate in the target grid may be determined as a cell to be switched corresponding to the target grid. In this way, in the process that the terminal passes through the target grid in the road section to be tested, the service cell of the terminal is switched to the cell to be switched corresponding to the target grid.
Alternatively, the maximum handover rate may be the same as or different from the optimal handover rate, and may be determined by those skilled in the art according to the actual situation when handing over the cell.
Thus, embodiments of the present application provide for the separation of a road segment to be tested into at least one grid; determining Reference Signal Received Power (RSRP) and signal-to-noise ratio (SINR) of each cell aiming at each cell with sampling points falling into a target grid, wherein the target grid is any one of the at least one grid; determining a switching rate of each cell in the target grid based on the RSRP and the SINR, wherein the switching rate characterizes a transmission rate of a signal; and determining the cell meeting the preset condition in the target grid as the cell to be switched corresponding to the target grid, wherein the preset condition is that the switching rate is the maximum or the switching rate is optimal, and determining the cell with the optimal switching rate corresponding to each grid in the road section to be tested, namely determining the cell with the optimal transmission rate, and further continuously switching the terminal to the cell with the optimal transmission rate in the process that the terminal passes through the road section to be tested, thereby solving the problem that the cell switching cannot be determined to be optimal in the related art.
In an optional implementation manner, the determining, for each cell having a sampling point falling into a target grid, the reference signal received power RSRP and the signal-to-noise ratio SINR of each cell includes: for each cell, determining the average value of all RSRPs of the sampling points of the cell falling into the target grid as the RSRP of the cell in the target grid; and determining the average value of SINR of all sampling points of the cell falling into the target grid as the SINR of the cell in the target grid.
Specifically, assuming that the target grid is the ith grid, RSPR of the j cell on the ith grid may be obtained by using the following formula (1), and is denoted as RSRP i,j; the SINR of the j cell on the ith grid can be obtained using the following equation (2), denoted SINR i,j.
Where N is the total number of sampling points for which the j cell falls into the ith grid.
Therefore, the RSRP and SINR values of the cells corresponding to the determined target grids are more representative, and the switching rate corresponding to the target grids is obtained based on the RSRP and the SINR.
In an alternative implementation, the determining, based on the RSPR and the SINR, a handover rate of the respective cells within the target grid includes:
Determining, for each cell, an air interface rate of the cell within the target grid based on the RSPR and the SINR of the cell; determining a sampling ratio of the cell on the target grid, wherein the sampling ratio is a ratio of the sampling point number of the cell in the target grid to the sampling point number of all cells in the target grid; and determining the product of the air interface rate of the cell in the target grid and the sampling ratio of the cell in the target grid as the switching rate of the cell in the target grid.
Alternatively, the sampling ratio may be used as a decision probability factor for the maximum likelihood estimation (Maximum Likelihood Estimation, MLE) so that the handover rate of each cell within the target grid may be determined based on the MLE model.
Optionally, the air interface rate of the cell in the target grid can be estimated based on RSPR, SINR and downlink throughput rate simulation of the cell in the target grid or based on actual measurement big data modeling of the current network by looking up table mapping of values of RSPR and SINR.
In this way, the switching rate of each cell corresponding to the determined target grid is in direct proportion to the number of sampling points of each cell in the target grid, so that the cell to be switched corresponding to the determined target grid is more accurate.
In an optional implementation manner, if the preset condition is that the handover rate is optimal, the determining the cell in the target grid that meets the preset condition as the cell to be handed over corresponding to the target grid includes:
Determining a switching rate of each cell in adjacent grids of the target grid; determining an average value of the switching rates of each cell in the target grid and the adjacent grids based on the switching rates of each cell in the adjacent grids; determining the cell with the maximum average value as the cell with the optimal switching rate; and determining the cell with the optimal switching rate as a cell to be switched in a target grid.
Alternatively, an average value of the switching rates of 2 grids, 3 grids … … n grids in succession with the target grid as the starting grid may be determined, and the cell with the largest average value may be determined as the cell with the optimal switching rate. On this basis, optionally, an optimal cell handover chain may be determined. Specifically, the value of n may be determined based on specific engineering requirements, and is not specifically limited herein.
Optionally, after the cell with the optimal switching rate is determined as the cell to be switched in the target grid, the method further includes: and determining the cell with the optimal switching rate as a cell to be switched in an adjacent grid of the target grid.
Therefore, by determining the average value of the switching rates of each cell in the target grid and the adjacent grids and determining the cell with the largest average value as the cell to be switched of the target grid and the adjacent grids, the transmission rate of the switched cell is relatively fast when the terminal passes through two continuous grids, the problem of abrupt drop of the transmission rate during cell switching is effectively avoided, and user experience is effectively improved.
In an optional implementation manner, after the determining, as the cell to be switched corresponding to the target grid, the cell that meets the preset condition in the target grid, the method further includes:
And determining a cell specific bias (CIO) for switching the serving cell to the cell to be switched based on a preset formula based on the level value of the serving cell, the switching amplitude hysteresis, the switching bias and the level value of the cell to be switched.
Wherein, the preset formula is:
Mn+CIO>Ms+Hyst+Offset；
wherein Mn is the level value of the cell to be switched, ms is the level value of the serving cell, hyst is the switching amplitude hysteresis, and Offset is the switching bias.
Therefore, by determining CIO of the service cell to the cell to be switched, the terminal can be switched from the service cell to the cell to be switched more smoothly, and the experience of the user is enhanced.
Optionally, an embodiment of the present application is described below with reference to fig. 2, in which the embodiment includes the following steps:
step 201: and collecting a sample of the road section to be tested.
Specifically, the samples may include sampling point data such as RSRP, SINR, throughput, etc. of all cells in the road section to be tested, and may further include CIO configuration related parameters of all cells in the road section to be tested extracted from the network management background, where the related parameters may include a serving cell level value, a level value of a cell to be switched, a cell switching amplitude hysteresis, and a cell switching bias.
Step 202: the road section to be tested is divided into at least one grid.
Specifically, the shape of the grid may be square, rectangular, irregular, or the like, and is not particularly limited herein. For example, the grid may be square with L x L meters, where L may be equal to 10.
Optionally, at least one grid may also be numbered, e.g., grids may be numbered sequentially 1,2,3 … …, n, n+1, n+2, … … in the order of separation.
Step 203: and determining Reference Signal Received Power (RSRP) and signal to noise ratio (SINR) of each cell aiming at each cell with sampling points falling into a target grid.
Wherein the target grid is any one of the at least one grid.
Specifically, the matching relationship between the sampling points and the boundary of the target grid can be determined according to the longitude/latitude of the sampling points of each cell in the road section to be tested, and then the sampling points can be marked with the serial numbers of the target grid.
Further, optionally, for each cell, an average value of all RSRP of the cell falling into the sampling point of the target grid may be determined as the RSRP of the cell in the target grid; and determining the average value of SINR of all sampling points of the cell falling into the target grid as the SINR of the cell in the target grid.
Specifically, assuming that the target grid is the ith grid, RSPR of the j cell on the ith grid may be obtained by using the following formula (1), and is denoted as RSRP i,j; the SINR of the j cell on the ith grid can be obtained using the following equation (2), denoted SINR i,j.
Where N is the total number of sampling points for which the j cell falls into the ith grid.
Step 204: based on the RSRP and the SINR, a handover rate of the respective cell within the target grid is determined.
Wherein the switching rate characterizes the transmission rate of the signal.
Optionally, for each cell, determining an air interface rate of the cell in the target grid based on the RSPR and the SINR of the cell; a sampling ratio of the cell on the target grid is determined.
The sampling ratio is the ratio of the sampling point number of the cell in the target grid to the sampling point number of all cells in the target grid; and determining the product of the air interface rate of the cell in the target grid and the sampling ratio of the cell in the target grid as the switching rate of the cell in the target grid.
Specifically, the air interface rate of the cell in the target grid can be estimated based on RSPR, SINR and downlink throughput rate simulation of the cell in the target grid or based on actual measurement big data modeling of the current network by looking up table mapping of values of RSPR and SINR.
Alternatively, the throughput of each cell in the target grid can be queried based on SINR of the cell in the target grid based on SINR-downlink throughput rate simulation or based on a data model fitted by a current network mass drive test data curve.
Further, the product of the throughput of the cell in the target grid and the sampling ratio of the cell in the target grid can be determined as the handover rate of the cell in the target grid.
Alternatively, the sampling ratio may be used as a decision probability factor for Maximum Likelihood Estimation (MLE), so that the handover rate of each cell within the target grid may be determined based on the MLE model.
Step 205: and determining the cell with the optimal intra-grid handover rate as the cell to be handed over corresponding to the target grid.
As a specific example, for example, the air interface rate of the jth cell in the ith grid may be denoted as V i,j, and the sampling ratio of the jth cell in the ith grid may be denoted as p i,j. Thus, a grid optimal switching rate sequence estimation model can be established based on the MLE mathematical model by using the formula (3).
In this way, each element included in the obtained E (a) matrix traverses the combination modes of various grids and various cells, and determines the combination mode of the switching rate of each cell formed by various combination modes in each grid, so that the optimal switching rate sequence of the grids can be established.
Alternatively, the handover rate of each cell within the neighboring grid of the target grid may be determined; determining an average value of the switching rates of each cell in the target grid and the adjacent grids based on the switching rates of each cell in the adjacent grids; determining a cell with the maximum average value as a cell with the optimal switching rate; and determining the cell with the optimal switching rate as a cell to be switched in the target grid.
Alternatively, an average value of the switching rates of 2 grids, 3 grids … … n grids in succession with the target grid as the starting grid may be determined, and the cell with the largest average value may be determined as the cell with the optimal switching rate. On this basis, optionally, an optimal cell handover chain may be determined. Specifically, the value of n may be determined based on specific engineering requirements, and is not specifically limited herein.
Alternatively, the cell with the optimal switching rate may be determined as a cell to be switched in an adjacent grid of the target grid.
Step 206: and determining a cell specific bias CIO for switching the serving cell to the cell to be switched based on a preset formula based on the level value of the serving cell, the switching amplitude hysteresis, the switching bias and the level value of the cell to be switched.
Wherein, the preset formula is:
Mn+CIO>Ms+Hyst+Offset；
wherein Mn is the level value of the cell to be switched, ms is the level value of the serving cell, hyst is the switching amplitude hysteresis, and Offset is the switching bias.
Step 207: and loading all CIO parameters corresponding to the optimal cell switching chain to the corresponding cell to finish parameter adjustment and modification.
It should be noted that, based on the scheme output by the algorithm model, the CIO is adjusted to switch from NR460 to NR340 as soon as possible, and the average rate of a single switching band (100 m) region is increased by 250Mbps.
Based on the scheme output by the algorithm model, after CIO optimization adjustment is carried out on the cell of the road section to be tested, the grid pole rate gain of the whole road section is 5%, and the low rate grid gain of the switching band is 17% -24%.
Therefore, the cell with the optimal switching rate corresponding to each grid in the road section to be tested can be determined, and the terminal can be continuously switched to the cell with the optimal switching rate in the process that the terminal passes through the road section to be tested, so that the problem that the optimal switching cell cannot be determined when the cell is switched in the related technology is solved. In addition, by determining CIO of the serving cell to the cell to be switched, the terminal can be switched from the serving cell to the cell to be switched more smoothly, so that the experience of the user is enhanced.
It should be noted that, in the cell switching method provided by the embodiment of the present application, the execution body may be a cell switching device, or a control module in the cell switching device for executing a cell switching method. In the embodiment of the present application, a cell switching device executes a cell switching method as an example, and a cell switching device provided in the embodiment of the present application is described.
Fig. 3 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present invention. As shown in fig. 3, a cell switching apparatus 300 includes: the separation module 310, the first determination module 320, the second determination module 330, and the third determination module 340.
A separation module 310 for separating the road section to be tested into at least one grid; a first determining module 320, configured to determine, for each cell having a sampling point falling into a target grid, a reference signal received power RSRP and a signal-to-noise ratio SINR of the each cell, where the target grid is any one of the at least one grid; a second determining module 330, configured to determine a handover rate of each cell within the target grid based on the RSRP and the SINR, where the handover rate characterizes a transmission rate of a signal; a third determining module 340, configured to determine a cell in the target grid that meets a preset condition as a cell to be switched corresponding to the target grid, where the preset condition is that the switching rate is the maximum or the switching rate is the optimal.
In one implementation, the first determining module 320 is specifically configured to: for each cell, determining an average value of all RSRPs of the cells falling into sampling points of the target grid as the RSRP of the cells in the target grid; and determining the average value of SINR of all sampling points of the cell falling into the target grid as the SINR of the cell in the target grid.
In one implementation, the second determining module 330 is specifically configured to: determining, for each cell, an air interface rate of the cell within the target grid based on the RSPR and the SINR of the cell; determining a sampling ratio of the cell on the target grid, wherein the sampling ratio is a ratio of the sampling point number of the cell in the target grid to the sampling point number of all cells in the target grid; and determining the product of the air interface rate of the cell in the target grid and the sampling ratio of the cell in the target grid as the switching rate of the cell in the target grid.
In one implementation manner, if the preset condition is that the switching rate is optimal, the third determining module 340 is specifically configured to: determining a switching rate of each cell in adjacent grids of the target grid; determining an average value of the switching rates of each cell in the target grid and the adjacent grids based on the switching rates of each cell in the adjacent grids; determining the cell with the maximum average value as the cell with the optimal switching rate; and determining the cell with the optimal switching rate as a cell to be switched in the target grid.
In one implementation, the third determining module 340 is further configured to: and determining the cell with the optimal switching rate as a cell to be switched in an adjacent grid of the target grid.
In one implementation, the third determining module 340 is further configured to: determining a cell specific bias CIO for switching the service cell to the cell to be switched based on a preset formula based on a level value of the service cell, a switching amplitude hysteresis, a switching bias and a level value of the cell to be switched; wherein, the preset formula is: mn+ CUO > Ms+Hyst+Offset; wherein Mn is the level value of the cell to be switched, ms is the level value of the serving cell, hyst is the switching amplitude hysteresis, and Offset is the switching bias.
A cell switching device in an embodiment of the present application may be a device. The apparatus may be a non-mobile electronic device. By way of example, the non-mobile electronic device may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a Television (TV), a teller machine, a self-service machine, or the like, and embodiments of the present application are not limited in particular.
A cell switching device in an embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not limited specifically.
The cell switching device provided by the embodiment of the present application can implement each process implemented in the method embodiments of fig. 1 and fig. 2, and in order to avoid repetition, a description is omitted here.
Optionally, as shown in fig. 4, the embodiment of the present application further provides an electronic device 400, including a processor 401, a memory 402, and a program or an instruction stored in the memory 402 and capable of running on the processor 401, where the program or the instruction is executed by the processor 401 to implement each process of the embodiment of the method, and the process can achieve the same technical effect, so that repetition is avoided, and no further description is given here.
The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above embodiment of the cell handover method, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.
Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, the processes of the embodiment of the cell switching method can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (13)
1. A method for cell handover, comprising:
Dividing the road section to be tested into at least one grid;
Determining Reference Signal Received Power (RSRP) and signal-to-noise ratio (SINR) of each cell aiming at each cell with sampling points falling into a target grid, wherein the target grid is any one of the at least one grid;
Determining a switching rate of each cell in the target grid based on the RSRP and the SINR, wherein the switching rate characterizes a transmission rate of a signal;
determining a cell meeting a preset condition in the target grid as a cell to be switched corresponding to the target grid, wherein the preset condition is that the switching rate is optimal;
The determining, based on the RSRP and the SINR, a handover rate of the respective cell within the target grid includes:
Determining, for each cell, an air interface rate of the cell within the target grid based on the RSRP and the SINR of the cell;
Determining a sampling ratio of the cell on the target grid, wherein the sampling ratio is a ratio of the sampling point number of the cell in the target grid to the sampling point number of all cells in the target grid;
And determining the product of the air interface rate of the cell in the target grid and the sampling ratio of the cell in the target grid as the switching rate of the cell in the target grid.
2. The method for cell handover according to claim 1, wherein determining, for each cell having a sampling point falling into a target grid, a reference signal received power RSRP and a signal to noise ratio SINR of each cell comprises:
For each cell, determining an average value of all RSRPs of the cells falling into sampling points of the target grid as the RSRP of the cells in the target grid;
and determining the average value of SINR of all sampling points of the cell falling into the target grid as the SINR of the cell in the target grid.
3. The method for cell handover according to claim 1, wherein the determining the cell in the target grid that satisfies the preset condition as the cell to be handed over corresponding to the target grid includes:
Determining a switching rate of each cell in adjacent grids of the target grid;
determining an average value of the switching rates of each cell in the target grid and the adjacent grids based on the switching rates of each cell in the adjacent grids;
Determining the cell with the maximum average value as the cell with the optimal switching rate;
and determining the cell with the optimal switching rate as a cell to be switched in the target grid.
4. A cell handover method according to claim 3, further comprising, after said determining the cell with the optimal handover rate as a cell to be handed over in the target grid:
And determining the cell with the optimal switching rate as a cell to be switched in an adjacent grid of the target grid.
5. The cell handover method according to claim 1, further comprising, after the determining, as the cell to be handed over corresponding to the target grid, the cell satisfying the preset condition in the target grid:
Determining a cell specific bias CIO for switching the serving cell to the cell to be switched based on a preset formula based on a level value of the serving cell, a switching amplitude hysteresis, a switching bias and the level value of the cell to be switched;
Wherein, the preset formula is:
;
Wherein, For the level value of the cell to be switched,/>For the level value of the serving cell,/>For the switching amplitude hysteresis,/>Biasing the switching.
6. A method for cell handover, comprising:
Dividing the road section to be tested into at least one grid;
Determining Reference Signal Received Power (RSRP) and signal-to-noise ratio (SINR) of each cell aiming at each cell with sampling points falling into a target grid, wherein the target grid is any one of the at least one grid;
Determining a switching rate of each cell in the target grid based on the RSRP and the SINR, wherein the switching rate characterizes a transmission rate of a signal;
determining a cell meeting a preset condition in the target grid as a cell to be switched corresponding to the target grid, wherein the preset condition is that the switching rate is maximum;
The determining, based on the RSRP and the SINR, a handover rate of the respective cell within the target grid includes:
Determining, for each cell, an air interface rate of the cell within the target grid based on the RSRP and the SINR of the cell;
Determining a sampling ratio of the cell on the target grid, wherein the sampling ratio is a ratio of the sampling point number of the cell in the target grid to the sampling point number of all cells in the target grid;
And determining the product of the air interface rate of the cell in the target grid and the sampling ratio of the cell in the target grid as the switching rate of the cell in the target grid.
7. The method for cell handover according to claim 6, wherein determining the reference signal received power RSRP and the signal-to-noise ratio SINR of each cell for each cell having a sampling point falling into a target grid comprises:
For each cell, determining an average value of all RSRPs of the cells falling into sampling points of the target grid as the RSRP of the cells in the target grid;
and determining the average value of SINR of all sampling points of the cell falling into the target grid as the SINR of the cell in the target grid.
8. The method for cell handover according to claim 6, further comprising, after the determining, as the cell to be handed over corresponding to the target grid, the cell satisfying the preset condition in the target grid:
Determining a cell specific bias CIO for switching the serving cell to the cell to be switched based on a preset formula based on a level value of the serving cell, a switching amplitude hysteresis, a switching bias and the level value of the cell to be switched;
Wherein, the preset formula is:
;
Wherein, For the level value of the cell to be switched,/>For the level value of the serving cell,/>For the switching amplitude hysteresis,/>Biasing the switching.
9. A cell switching apparatus, comprising:
the separation module is used for separating the road section to be tested into at least one grid;
A first determining module, configured to determine, for each cell having a sampling point falling into a target grid, a reference signal received power RSRP and a signal-to-noise ratio SINR of the each cell, where the target grid is any one of the at least one grid;
a second determining module, configured to determine a switching rate of each cell in the target grid based on the RSRP and the SINR, where the switching rate characterizes a transmission rate of a signal;
a third determining module, configured to determine a cell in the target grid that meets a preset condition as a cell to be switched corresponding to the target grid, where the preset condition is that the switching rate is optimal;
The second determining module is specifically configured to determine, for each cell, an air interface rate of the cell in the target grid based on the RSRP and the SINR of the cell;
Determining a sampling ratio of the cell on the target grid, wherein the sampling ratio is a ratio of the sampling point number of the cell in the target grid to the sampling point number of all cells in the target grid;
And determining the product of the air interface rate of the cell in the target grid and the sampling ratio of the cell in the target grid as the switching rate of the cell in the target grid.
10. The cell switching apparatus according to claim 9, wherein the third determining module is specifically configured to:
Determining a switching rate of each cell in adjacent grids of the target grid;
determining an average value of the switching rates of each cell in the target grid and the adjacent grids based on the switching rates of each cell in the adjacent grids;
Determining the cell with the maximum average value as the cell with the optimal switching rate;
and determining the cell with the optimal switching rate as a cell to be switched in the target grid.
11. A cell switching apparatus, comprising:
the separation module is used for separating the road section to be tested into at least one grid;
A first determining module, configured to determine, for each cell having a sampling point falling into a target grid, a reference signal received power RSRP and a signal-to-noise ratio SINR of the each cell, where the target grid is any one of the at least one grid;
a second determining module, configured to determine a switching rate of each cell in the target grid based on the RSRP and the SINR, where the switching rate characterizes a transmission rate of a signal;
a third determining module, configured to determine a cell in the target grid that meets a preset condition as a cell to be switched corresponding to the target grid, where the preset condition is that the switching rate is the maximum;
The second determining module is specifically configured to determine, for each cell, an air interface rate of the cell in the target grid based on the RSRP and the SINR of the cell;
Determining a sampling ratio of the cell on the target grid, wherein the sampling ratio is a ratio of the sampling point number of the cell in the target grid to the sampling point number of all cells in the target grid;
And determining the product of the air interface rate of the cell in the target grid and the sampling ratio of the cell in the target grid as the switching rate of the cell in the target grid.
12. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which program or instruction when executed by the processor implements the steps of the cell handover method of any of claims 1-5 or 6-8.
13. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the cell handover method according to any of claims 1-5 or 6-8.
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| CN106797596A (en) * | 2014-11-17 | 2017-05-31 | 华为技术有限公司 | A kind of connection control method, device and the network equipment |
| CN113133064A (en) * | 2019-12-30 | 2021-07-16 | 中兴通讯股份有限公司 | Switching method and device, storage medium and electronic equipment |
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| CN114422949A (en) * | 2021-12-29 | 2022-04-29 | 中国电信股份有限公司 | Network quality evaluation method, device, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015180106A1 (en) * | 2014-05-29 | 2015-12-03 | 华为技术有限公司 | Method and device for scheduling user equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106797596A (en) * | 2014-11-17 | 2017-05-31 | 华为技术有限公司 | A kind of connection control method, device and the network equipment |
| CN113133064A (en) * | 2019-12-30 | 2021-07-16 | 中兴通讯股份有限公司 | Switching method and device, storage medium and electronic equipment |
| CN113498068A (en) * | 2020-03-19 | 2021-10-12 | 株洲中车时代电气股份有限公司 | Method, device, equipment and medium for determining home cell of high-speed railway |
| CN114422949A (en) * | 2021-12-29 | 2022-04-29 | 中国电信股份有限公司 | Network quality evaluation method, device, equipment and storage medium |
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