CN109640365B - Cell switching method, device and storage medium - Google Patents
Cell switching method, device and storage medium Download PDFInfo
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- CN109640365B CN109640365B CN201811613618.XA CN201811613618A CN109640365B CN 109640365 B CN109640365 B CN 109640365B CN 201811613618 A CN201811613618 A CN 201811613618A CN 109640365 B CN109640365 B CN 109640365B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention provides a method, a device and a storage medium for switching cells, wherein the method comprises the following steps: determining a signal quality value of the source cell; judging whether the signal quality value is smaller than a first preset value or not; if the signal quality value is smaller than the first preset value, determining a target cell according to a pre-established interoperation relationship between the source cell and the target cell; and switching the terminal equipment from the source cell to the target cell. The cell switching method, the cell switching device and the cell switching storage medium can reduce the probability of user disconnection, effectively improve the wireless communication performance and further improve the experience of the iron user and the public network user.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, and a storage medium for cell handover.
Background
With the rapid development of high-speed railways in China, the construction and optimization of a high-speed rail mobile communication network become a new subject and challenge.
In the prior art, a network covered by a high-speed rail special item is built for a high-speed rail user, the network equipment is arranged in a high-speed rail car and can cover the whole high-speed rail car, the high-speed rail user can communicate through the covered network, a large-network user can communicate in the covered area of the network, corresponding network services can be carried out according to different areas where the user is located, and then switching of network cells is achieved.
However, with the increasing expansion of urban construction, the high-speed rail line and the urban traffic trunk road are inevitably overlapped in a cross way, so that in an overlapping coverage area of a public network and a high-speed rail network, two users easily have problems when selecting the network, and thus the users in a high-speed rail carriage occupy the public network, while the users outside the high-speed rail carriage occupy the high-speed rail network.
Disclosure of Invention
In order to solve the problems in the prior art, embodiments of the present invention provide a cell switching method, apparatus, and storage medium, which can reduce the probability of a user dropping, effectively improve wireless communication performance, and further improve the experience of a metro user and a public network user.
According to a first aspect of the embodiments of the present invention, a method for switching a cell is provided, the method including:
determining a signal quality value of the source cell;
judging whether the signal quality value is smaller than a first preset value or not;
if the signal quality value is smaller than the first preset value, determining a target cell according to a pre-established interoperation relationship between the source cell and the target cell;
and switching the terminal equipment from the source cell to the target cell.
Optionally, the target cell is a non-high-speed rail cell;
the determining the target cell according to the pre-established interoperation relationship between the source cell and the target cell includes:
determining signal quality values for m of the non-high speed rail cells;
determining the n non-high-speed rail cells with the signal quality values larger than a second preset value as cells to be selected;
and determining the target cell from the cells to be selected according to the interoperation relationship.
Optionally, the target cell is a non-high-speed rail cell;
the determining the target cell according to the pre-established interoperation relationship between the source cell and the target cell includes:
determining distribution information of a base station corresponding to the target cell;
and determining the target cell according to the interoperation relationship and the distribution information.
Optionally, the determining the target cell according to the interoperation relationship and the distribution information includes:
determining a second-layer backward cell or a third-layer cell of the base station corresponding to the target cell according to the distribution information;
determining the second layer of backward cells or the third layer of cells as neighbor cells of the target cell;
and determining the target cell according to the adjacent cell and the interoperation relation.
Optionally, the target cell is a high-speed rail cell;
the switching the terminal device from the source cell to the target cell includes:
acquiring the capacity of the high-speed rail cell and the current number of users in the high-speed rail cell;
and switching the terminal equipment from the source cell to the target cell according to the capacity and the current number of users in the high-speed railway cell.
Optionally, the switching the terminal device from the source cell to the target cell according to the capacity and the current number of users in the high-speed rail cell includes:
judging whether the current number of users in the high-speed rail cell is smaller than the capacity;
and if the number of the current users in the high-speed rail cell is smaller than the capacity, switching the terminal equipment from the source cell to the target cell.
Optionally, the signal quality value comprises a received signal code power, RSCP.
According to a second aspect of the embodiments of the present invention, there is provided a handover apparatus of a cell, the apparatus including:
a determination module for determining a signal quality value of a source cell;
the judging module is used for judging whether the signal quality value is smaller than a first preset value or not;
the determining module is further configured to determine a target cell according to a pre-established interoperation relationship between the source cell and the target cell when the determining module determines that the signal quality value is smaller than the first preset value;
and the switching module is used for switching the terminal equipment from the source cell to the target cell.
Optionally, the target cell is a non-high-speed rail cell;
the determining module is specifically configured to:
determining signal quality values for m of the non-high speed rail cells;
determining the n non-high-speed rail cells with the signal quality values larger than a second preset value as cells to be selected;
and determining the target cell from the cells to be selected according to the interoperation relationship.
Optionally, the target cell is a non-high-speed rail cell;
the determining module is specifically configured to:
determining distribution information of a base station corresponding to the target cell;
and determining the target cell according to the interoperation relationship and the distribution information.
Optionally, the determining module is specifically configured to:
determining a second-layer backward cell or a third-layer cell of the base station corresponding to the target cell according to the distribution information;
determining the second layer of backward cells or the third layer of cells as neighbor cells of the target cell;
and determining the target cell according to the adjacent cell and the interoperation relation.
Optionally, the target cell is a high-speed rail cell;
the switching module includes:
the obtaining submodule is used for obtaining the capacity of the high-speed rail cell and the current number of users in the high-speed rail cell;
and the processing submodule is used for switching the terminal equipment from the source cell to the target cell according to the capacity and the current number of users in the high-speed rail cell.
Optionally, the processing sub-module is specifically configured to:
judging whether the current number of users in the high-speed rail cell is smaller than the capacity;
and if the number of the current users in the high-speed rail cell is smaller than the capacity, switching the terminal equipment from the source cell to the target cell.
Optionally, the signal quality value comprises a received signal code power, RSCP.
According to a third aspect of the embodiments of the present invention, there is provided a network device, including:
a processor;
a memory; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor, the computer program comprising instructions for performing the method of the first aspect.
According to a fourth aspect of embodiments of the present invention, there is provided a computer-readable storage medium storing a computer program for causing a network device to execute the method of the first aspect.
The cell switching method, the device and the storage medium provided by the invention determine the signal quality value of the source cell where the user is located; further judging whether the signal quality value is smaller than a first preset value or not; if the signal quality value is smaller than the first preset value, determining a target cell according to a pre-established interoperation relationship between the source cell and the target cell; and switching the terminal equipment from the source cell to the target cell. The method comprises the steps of determining a signal quality value of a source cell where a user is located, and if the signal quality value is smaller than a preset value, switching the cells of the user according to a pre-established interoperation relationship between the source cell and a target cell so as to ensure the signal quality of the cell where the terminal equipment is located, reduce the probability of user disconnection, effectively improve the wireless communication performance and further improve the user experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a possible system architecture according to an embodiment of the present invention.
Fig. 2 is a flowchart illustrating a handover method of a cell according to an exemplary embodiment of the present invention.
Figure 3 illustrates a signal strength distribution of a non-high speed rail cell coverage within a high speed rail car according to an exemplary embodiment of the present invention.
Figure 4 illustrates a cumulative distribution of non-high speed rail cell coverage within a high speed rail car according to an exemplary embodiment of the present invention.
Figure 5 illustrates a high-speed rail cell signal strength attenuation profile in a direction away from the high-speed rail according to an exemplary embodiment of the present invention.
Fig. 6 is a flowchart illustrating a handover method of a cell according to still another exemplary embodiment of the present invention.
Fig. 7 is a diagram illustrating a high-speed rail cell switching to a non-high-speed rail cell in accordance with an exemplary embodiment of the present invention.
Fig. 8 is a flowchart illustrating a handover method of a cell according to another exemplary embodiment of the present invention. Fig. 9 is a flowchart illustrating a handover method of a cell according to still another exemplary embodiment of the present invention.
Fig. 10 is a diagram illustrating a non-high-speed rail cell switching to a high-speed rail cell in accordance with an exemplary embodiment of the present invention.
Fig. 11 is a block diagram illustrating a handover apparatus of a cell according to an exemplary embodiment of the present invention.
Fig. 12 is a block diagram illustrating a handover apparatus of a cell according to another exemplary embodiment of the present invention.
Fig. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
Fig. 1 is a schematic diagram of a possible system architecture according to an embodiment of the present invention. As shown in fig. 1, the system includes a network device 10 and a plurality of terminal devices 20, where the network device 10 may be a base station, and is configured to determine whether the signal quality is smaller than a preset value by detecting the signal quality of a source cell where the terminal device is located, and if it is determined that the signal quality is smaller than the preset value, switch the terminal device from the original cell to a target cell according to a pre-established interoperation relationship between source cells of target cells, so as to improve the communication performance of the middle-end device and improve the user's perception.
The Terminal device 20(Terminal device) includes, but is not limited to, a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), a Mobile phone (Mobile Telephone), a handset (handset), a portable device (portable equipment), etc., and the Terminal device may communicate with one or more core networks via a Radio Access Network (RAN), for example, the Terminal device may be a Mobile phone (or called "cellular" phone), a computer with wireless communication function, etc., and the Terminal device may also be a portable, pocket, hand-held, computer-embedded or vehicle-mounted Mobile apparatus or device.
Due to the overlapping coverage area between the high-speed rail mobile network and the non-high-speed rail network, the network coexistence problem exists. Because the high-speed rail mobile communication network is a linear coverage area, a long-distance and large-area network overlapping coverage area exists inevitably with a surrounding large network, and in the network overlapping coverage area, two users easily have problems when selecting the network, so that the high-speed rail user occupies a non-high-speed rail mobile network, the non-high-speed rail user occupies a high-speed rail mobile network, and as the signal of the non-high-speed rail mobile network in a high-speed rail carriage is weak, the same high-speed rail mobile network also has weak coverage signals in the non-high-speed rail mobile network, when the two users mistakenly use the network which is not used, a large amount of voice call drop and network access failure serious problems occur in the mobile communication process.
In order to solve the technical problem, the invention provides a cell switching method, which comprises the steps of determining the signal quality value of a source cell where a user is located; further judging whether the signal quality value is smaller than a first preset value or not; if the signal quality value is smaller than the first preset value, determining a target cell according to a pre-established interoperation relationship between the source cell and the target cell; and switching the terminal equipment from the source cell to the target cell. The method comprises the steps of determining a signal quality value of a source cell where a user is located, and if the signal quality value is smaller than a preset value, switching the cells of the user according to a pre-established interoperation relationship between the source cell and a target cell so as to ensure the signal quality of the cell where the terminal equipment is located, reduce the probability of user disconnection, effectively improve the wireless communication performance and further improve the user experience.
Based on the system architecture shown in fig. 1, fig. 2 is a flowchart of a cell handover method according to an exemplary embodiment of the present invention, and as shown in fig. 2, the method of this embodiment may include:
In this step, the source cell is a network cell where the terminal device is located at the current time, the source cell may be a non-high-speed rail cell and a high-speed rail cell, and the terminal user of the source cell may be a high-speed rail user and a non-high-speed rail user. The Signal quality value may represent a strength of the Signal and may comprise a Received Signal Code Power (RSCP), for example, a Signal quality value of-70 dmb, -120dbm, or-50 dbm. Fig. 3 shows the signal strength Distribution of non-high-speed rail cells covered in a high-speed rail car according to an exemplary embodiment of the present invention, fig. 4 shows the Cumulative Distribution of non-high-speed rail cells covered in a high-speed rail car according to an exemplary embodiment of the present invention, fig. 5 shows the signal strength attenuation Distribution of high-speed rail cells away from a high-speed rail direction according to an exemplary embodiment of the present invention, as shown in fig. 3, the signal strength covered by non-high-speed rail cells (large network cells) in a high-speed rail car is mainly concentrated in the range of-110 dmb to-80 dmb, and it can be known from fig. 4 that the signal strength Cumulative Distribution (CDF) is at-95 dmb, as shown in fig. 5, the signal strength of high-speed rail cells is slightly gradually weakened in a direction signal away from a high-speed rail. And judging the communication performance of the terminal equipment by determining the signal quality value of the terminal equipment in the source cell covered by the network.
In this step, it is further determined whether the signal quality value is smaller than a first preset value according to the determined signal quality of the terminal device in the source cell, where the first preset value may be-120 dbm, -100dbm, or-80 dbm, and may be set according to specific situations, which is not limited in the present invention.
And 203, if the signal quality value is smaller than the first preset value, determining the target cell according to the pre-established interoperation relationship between the source cell and the target cell.
In this step, the target cell is a cell to which the terminal device is to be switched from the source cell, for example, if a cell in which the terminal device is currently located is a non-high-speed railway cell, the terminal device is to be switched to a high-speed railway cell, where the high-speed railway cell is the target cell, and of course, the target cell may also be a non-high-speed railway cell.
In this step, the interoperation relationship between the source cell and the target cell is a relationship pre-established between the source cell and the target cell, and the interoperation relationship may be established through identification information of the source cell and the target cell, and certainly, the interoperation relationship also includes receiving identification information between cells of networks with different frequencies. According to the relationship between the source cell and the target cell, the terminal device can perform network handover between the two cells.
Specifically, if the signal quality value of the terminal device in the source cell is smaller than the first preset value, the target cell is determined according to the pre-established interoperation relationship between the source cell and the target cell. For example, if the signal quality value of the terminal device in the source cell is-105 dbm and the first preset value is-100 dbm, so that the signal quality value of the terminal device in the source cell is smaller than the first preset value, that is, the signal quality of the terminal device in the source cell is poor, the target cell is determined from the multiple cells according to the pre-established operation relationship.
In this step, the terminal device in the source cell is judged to have the signal quality, and the cell switching can be performed on the terminal device with poor quality in a targeted manner, so that the communication performance of the terminal device can be improved, and the phenomenon of call drop can be avoided.
And step 204, switching the terminal equipment from the source cell to the target cell.
In this step, the terminal device is switched from the source cell to the target cell according to the determined target cell, specifically, in combination with the above example, according to the operation relationship established in advance, assuming that the signal quality values of the cell a, the cell B, the cell C, and the cell D in the source cell are a, B, C, and D, respectively, if a and C are smaller than the first preset value, that is, the signal qualities of the cell a and the cell C in the source cell are poor, according to the interoperation relationship between the source cell and each cell established in advance, if the source cell only establishes the interoperation relationship with the cell C, it is determined that the cell C is the target cell, and at this time, the terminal device of the source cell may be switched to the target cell C.
The cell switching method, the device and the storage medium provided by the invention determine the signal quality value of the source cell where the user is located; further judging whether the signal quality value is smaller than a first preset value or not; if the signal quality value is smaller than the first preset value, determining a target cell according to a pre-established interoperation relationship between the source cell and the target cell; and switching the terminal equipment from the source cell to the target cell. The method comprises the steps of determining a signal quality value of a source cell where a user is located, and if the signal quality value is smaller than a preset value, switching the cells of the user according to a pre-established interoperation relationship between the source cell and a target cell so as to ensure the signal quality of the cell where the terminal equipment is located, reduce the probability of user disconnection, effectively improve the wireless communication performance and further improve the user experience.
The following describes in detail the technical solution of the embodiment of the method shown in fig. 2, using several specific embodiments.
Fig. 6 is a flowchart illustrating a method for handing over a cell according to yet another exemplary embodiment of the present invention, where in this embodiment, based on the embodiment illustrated in fig. 2, a target cell is a non-high-speed rail cell, and how to determine a process of the target cell according to a pre-established interoperation relationship between a source cell and the target cell is described in detail, as illustrated in fig. 6, the method includes the following steps.
Step 601-step 602 are similar to step 201-step 202, and are not described herein again.
In this step, the source cell is a high-speed rail cell, the target cell is a non-high-speed rail cell, and if the signal quality value of the terminal device in the high-speed rail cell is smaller than the first preset value, the distribution information of the base stations corresponding to the non-high-speed rail cell is further determined, where the distribution information of the base stations may include information such as the coverage area of each base station and the distance between the base stations.
And step 604, determining the target cell according to the interoperation relationship and the distribution information.
Specifically, the target cell may be determined according to the following manner: determining a second-layer backward cell or a third-layer cell of the base station corresponding to the target cell according to the distribution information; determining a second-layer backward cell or a third-layer cell as a neighbor cell of the target cell; and determining the target cell according to the adjacent cell and the interoperation relation.
Specifically, the target cell may be divided into a plurality of target cells, fig. 7 is a schematic diagram illustrating that the high-speed rail cell is switched to a non-high-speed rail cell according to yet another exemplary embodiment of the present invention, and when distribution information of base stations in the non-high-speed rail cell is determined, according to the distribution information of each base station, a second-layer back cell or a third-layer cell corresponding to the base station is determined, as shown in fig. 7, because the high-speed rail mobile communication network is a linear coverage area, according to a distribution situation of the base stations in the non-high-speed rail cell, the second-layer back cell or the third-layer cell may be set in a direction away from the high-speed rail, where the second-layer back cell is an area closer to the high-speed rail than the third-layer cell, and a coverage area of a base station corresponding to the second-layer back cell is a back cell to the second-layer back cell, and the third-layer cell may be a non-high-speed rail cell farther from the high-speed rail.
Further, a second-layer backward cell or a third-layer cell of the base station corresponding to the determined non-high-speed rail cell is used as a neighboring cell of the target cell. By adding the second layer of cell back to the cell or the third layer of cell in the non-high-speed rail cell, the problem that when a non-high-speed rail user occupying a high-speed rail network is far away from the high-speed rail, the mobile network of the high-speed rail is weaker and weaker, so that the terminal user cannot switch networks, and the phenomenon of telephone call finally occurs can be solved. The second layer cell or the third layer cell is taken as the neighbor cell of the target cell, so that the problem of poor communication quality of the terminal equipment can be relieved.
And then, according to the neighboring cells of the target cell and the operation relationship between the source cell and the target cell, it may also include the operation relationship between the source cell and the neighboring cells of the target cell to determine the target cell.
In this step, the terminal device is switched from the source cell to the target cell according to the determined target cell, that is, the terminal user is switched from the high-speed rail cell to the non-high-speed rail cell.
In this embodiment, when a non-high-speed rail user occupies a high-speed rail mobile network, an adjacent cell may be added to a target cell according to distribution information of a base station corresponding to the target cell, and the target cell is determined according to the adjacent cell and an interoperation relationship. The target cell is determined in the mode, and then when the terminal equipment is at a high-speed rail and high-speed intersection separation road section, a high-speed rail and urban viaduct intersection road section or a road section around a high-speed rail station and the like, the terminal equipment can be switched to a non-high-speed rail cell from the high-speed rail cell, so that non-high-speed rail users can return to the non-high-speed rail mobile network from occupying the high-speed rail mobile network, and can continue to develop communication services in the non-high-speed rail mobile network.
Fig. 8 is a flowchart illustrating a handover method of a cell according to another exemplary embodiment of the present invention, where in this embodiment, based on the embodiment illustrated in fig. 2, a target cell is a non-high-speed rail cell, how to determine a process of the target cell according to a pre-established interoperation relationship between a source cell and the target cell, and the embodiment in fig. 8 and the embodiment in fig. 7 are parallel ways of determining the target cell when the target cell is the non-high-speed rail cell, except that the embodiment in fig. 7 determines the target cell according to distribution information of a base station, and the embodiment in fig. 8 determines the target cell according to signal quality values of a plurality of non-high-speed rail cells, which is described in detail below, as illustrated in fig. 8, the method includes the following steps.
Steps 801-802 are similar to steps 201-202 and are not described in detail herein.
And step 803, if the signal quality value is smaller than the first preset value, determining the signal quality values of the m non-high-speed rail cells.
In this step, if the signal quality value of the terminal device is greater than the first preset value, the signal quality values of the m non-high-speed rail cells are further determined. Specifically, by referring to the relationship between the signal strength of the high-speed rail cell deviating from the high-speed rail direction in fig. 5, different railway line networks are covered differently and need to be performed respectively, and for one railway line network, the signal quality values of m non-high-speed rail cells are determined according to the relationship between the strength of the high-speed rail cell and the distance.
And step 804, determining n non-high-speed rail cells with the signal quality value larger than a second preset value as cells to be selected.
In this step, the signal quality values of the m non-high-speed rail cells determined are further judged whether the signal quality values of the m non-high-speed rail cells are larger than a second preset value. If the number of the cells larger than the second preset value is n, determining n non-high-speed rail cells as cells to be selected, wherein the second preset value is a preset value meeting normal communication, but the second preset value cannot be too low, the probability of switching the high-speed rail user from the high-speed rail cell to the non-high-speed rail cell can be-80 dbm and the like to be reduced, and the number can be specifically set according to actual conditions, and the invention does not have any limitation.
In this step, the target cell is determined from the cells to be selected according to the pre-established interoperation relationship between the cells, specifically, one of the n non-high-speed rail cells to be selected with a larger signal quality value may be selected as the target cell, but no limitation is imposed on the manner of determining the target cell from the non-high-speed rail cells to be selected.
Step 806 is similar to step 204 and will not be described herein. It should be noted that the target cell should be located in a peripheral area of a high-speed rail station, a highway intersecting with a high-speed rail, or a peripheral area point of an overhead, because the mobility of non-high-speed rail users in these areas is strong and the non-high-speed rail users easily occupy a high-speed rail mobile network, the non-high-speed rail users in these areas have a need to switch out of the high-speed rail cell.
In this embodiment, when a non-high-speed rail user occupies a high-speed rail mobile network, according to a relationship between signal strength and distance in a high-speed rail cell, signal quality values of m non-high-speed rail cells are determined, and if the signal quality value is greater than a second preset value, a cell greater than the second preset value can be used as a cell to be selected, and a target cell is further determined.
Fig. 9 is a flowchart illustrating a method for handing over a cell according to yet another exemplary embodiment of the present invention, where in this embodiment, on the basis of the embodiment illustrated in fig. 2, a target cell is a high-speed railway cell, and how to hand over a terminal device from a source cell to the target cell is described in detail, as illustrated in fig. 9, the method includes the following steps.
Step 901 determines the signal quality value of the source cell.
And step 903, if the signal quality value is smaller than the first preset value, determining the target cell according to the pre-established interoperation relationship between the source cell and the target cell.
Steps 901-903 are similar to steps 201-203 and are not described herein again.
It is worth integrating, should choose in the target district the low traffic highway section or the boundary highway section of the city of both sides of the railway station, can choose non-high-speed railway district and high-speed railway district within about 2 kilometers, can set up about 4 districts separately non-high-speed railway district and high-speed railway district at the same time, wherein the high-speed railway district is the target district switched to.
And 904, acquiring the capacity of the high-speed rail cell and the current number of users in the high-speed rail cell.
In this step, the source cell is a non-high-speed rail cell, the target cell is a high-speed rail cell, and the capacity of the high-speed rail cell is the maximum value of mobile terminals capable of being capacity in the high-speed rail cell, for example, the capacity of the high-speed rail cell is 400 terminal devices, the current number of users in the high-speed rail cell is the current time, and the number of all mobile terminals in the high-speed rail cell is set. The number of users that can also be accommodated in the high-speed railway district can be determined by acquiring the capacity of the high-speed railway district and the current number of users in the high-speed railway district.
In this step, it is determined whether the current number of users in the high-speed rail cell is smaller than the capacity by using the acquired capacity of the high-speed rail cell and the current number of users, for example, the capacity of the high-speed rail cell is 400 mobile terminals, and the current number of users is 350, so that the number of users in the high-speed rail cell is 350 smaller than the capacity of 400.
And 906, if the current number of users in the high-speed rail cell is smaller than the capacity, switching the terminal equipment from the source cell to the target cell.
In this step, if it is determined that the number of current users in the high-speed rail cell is smaller than the capacity, the terminal device is switched from the source cell to the target cell. Fig. 10 is a schematic diagram illustrating a non-high-speed rail cell being switched to a high-speed rail cell according to an exemplary embodiment of the present invention, and as shown in fig. 10, when a high-speed rail user occupies a non-high-speed rail mobile network and travels to a target cell section on a high-speed rail train, the high-speed rail mobile user is forcibly pushed from the non-high-speed rail cell to the high-speed rail cell, so that the high-speed rail mobile user is pulled back to the high-speed rail mobile network from the occupied non-high-speed rail mobile network, and continues to use the high-speed rail mobile network to perform a communication service.
In this embodiment, after the target cell is determined, the capacity of the high-speed rail cell and the current number of users need to be determined, that is, in the limited capacity range of the high-speed rail cell, whether the switched terminal device can be accommodated in the high-speed rail cell is determined, so as to avoid the problem that the high-speed rail cell cannot be switched due to the incapability of accommodating the terminal device.
Fig. 11 is a block diagram illustrating a handover apparatus of a cell according to an exemplary embodiment of the present invention. As shown in fig. 11, the handover apparatus of the cell may include: a determining module 11, a judging module 12 and a switching module 13.
A determining module 11 for determining a signal quality value of the source cell;
the judging module 12 is configured to judge whether the signal quality value is smaller than a first preset value;
the determining module 11 is further configured to determine the target cell according to a pre-established interoperation relationship between the source cell and the target cell when the determining module determines that the signal quality value is smaller than the first preset value;
a switching module 13, configured to switch the terminal device from the source cell to the target cell.
Optionally, the signal quality value comprises a received signal code power, RSCP.
According to the cell switching device provided by the embodiment of the invention, the signal quality value of the source cell where the user is located is determined through the determining module 11; the judging module 12 further judges whether the signal quality value is smaller than a first preset value; when the judging module 12 judges that the signal quality value is smaller than the first preset value, the determining module 11 determines the target cell according to the pre-established interoperation relationship between the source cell and the target cell; the handover module 13 is configured to handover the terminal device from the source cell to the target cell. The method comprises the steps of determining a signal quality value of a source cell where a user is located, and if the signal quality value is smaller than a preset value, switching the cells of the user according to a pre-established interoperation relationship between the source cell and a target cell so as to ensure the signal quality of the cell where the terminal equipment is located, reduce the probability of user disconnection, effectively improve the wireless communication performance and further improve the user experience.
Optionally, the target cell is a non-high-speed rail cell; the determination module is specifically configured to:
determining signal quality values for m non-high-speed rail cells;
determining n non-high-speed rail cells with the signal quality value larger than a second preset value as cells to be selected;
and determining a target cell from the cells to be selected according to the interoperation relationship.
Optionally, the target cell is a non-high-speed rail cell; the determination module is specifically configured to:
determining distribution information of a base station corresponding to a target cell;
and determining the target cell according to the interoperation relationship and the distribution information.
Optionally, the determining module is specifically configured to:
determining a second-layer backward cell or a third-layer cell of the base station corresponding to the target cell according to the distribution information;
determining a second-layer backward cell or a third-layer cell as a neighbor cell of the target cell;
and determining the target cell according to the adjacent cell and the interoperation relation.
Fig. 12 is a flowchart of a cell handover method according to another exemplary embodiment of the present invention, where in this embodiment, on the basis of the embodiment shown in fig. 11, a target cell is a high-speed railway cell, and how a handover module 14 hands over a terminal device from a source cell to the target cell is described in detail, as shown in fig. 12, a handover module 13 includes an obtaining sub-module 131 and a processing sub-module 132. Specifically, the method comprises the following steps:
the obtaining submodule 131 is configured to obtain the capacity of the high-speed rail cell and the number of users currently in the high-speed rail cell;
and the processing submodule 132 is configured to switch the terminal device from the source cell to the target cell according to the capacity and the current number of users in the high-speed rail cell.
Optionally, the processing sub-module is specifically configured to:
judging whether the current number of users in the high-speed rail cell is smaller than the capacity;
and if the current number of users in the high-speed rail cell is smaller than the capacity, switching the terminal equipment from the source cell to the target cell.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 13 is a schematic structural diagram of a network device according to an embodiment of the present invention. The network device shown in fig. 13 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 13, the network device may include a transmitter 60, a processor 61, a memory 62, and at least one communication bus 63. The communication bus 63 is used to realize communication connection between the elements. The memory 62 may comprise a high speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various programs may be stored for performing various processing functions and implementing the method steps of the present embodiment. In addition, the network device may further include a receiver 64, the receiver 64 in this embodiment may be a corresponding input interface having a communication function and a function of receiving information, and the transmitter 60 in this embodiment may be a corresponding output interface having a communication function and a function of transmitting information. Alternatively, the transmitter 60 and the receiver 64 may be integrated into one communication interface, or may be two independent communication interfaces.
In addition, a computer program is stored in the memory 62 and configured to be executed by the processor 61, the computer program comprising instructions for performing the method of the embodiment shown in fig. 2 above or instructions for performing the method of the embodiment shown in fig. 2 above.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program enables a network device to execute the image processing method provided in the embodiment shown in fig. 2. The readable storage medium may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The aforementioned program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (14)
1. A method for handing over a cell, comprising:
determining a signal quality value of the source cell;
judging whether the signal quality value is smaller than a first preset value or not;
if the signal quality value is smaller than the first preset value, determining a target cell according to a pre-established interoperation relationship between the source cell and the target cell;
switching the terminal equipment from the source cell to the target cell;
if the target cell is a non-high-speed rail cell, determining the target cell according to a pre-established interoperation relationship between the source cell and the target cell, including:
determining signal quality values for m of the non-high speed rail cells; determining the n non-high-speed rail cells with the signal quality values larger than a second preset value as cells to be selected; determining the target cell from the cells to be selected according to the interoperation relationship;
the determining the target cell according to the pre-established interoperation relationship between the source cell and the target cell includes:
determining signal quality values for m of the non-high speed rail cells;
determining the n non-high-speed rail cells with the signal quality values larger than a second preset value as cells to be selected;
and determining the target cell from the cells to be selected according to the interoperation relationship.
2. The method of claim 1, wherein the target cell is a non-high-speed rail cell;
the determining the target cell according to the pre-established interoperation relationship between the source cell and the target cell includes:
determining distribution information of a base station corresponding to the target cell;
and determining the target cell according to the interoperation relationship and the distribution information.
3. The method of claim 2, wherein the determining the target cell according to the interworking relationship and the distribution information comprises:
determining a second-layer backward cell or a third-layer cell of the base station corresponding to the target cell according to the distribution information;
determining the second layer of backward cells or the third layer of cells as neighbor cells of the target cell;
and determining the target cell according to the adjacent cell and the interoperation relation.
4. The method of claim 1, wherein if the target cell is a high-speed rail cell;
the switching the terminal device from the source cell to the target cell includes:
acquiring the capacity of the high-speed rail cell and the current number of users in the high-speed rail cell;
and switching the terminal equipment from the source cell to the target cell according to the capacity and the current number of users in the high-speed railway cell.
5. The method of claim 4, wherein the handing over the terminal device from the source cell to the target cell according to the capacity and the current number of users in the high-speed rail cell comprises:
judging whether the current number of users in the high-speed rail cell is smaller than the capacity;
and if the number of the current users in the high-speed rail cell is smaller than the capacity, switching the terminal equipment from the source cell to the target cell.
6. The method according to any of claims 1-5, wherein the signal quality value comprises a received signal code power, RSCP.
7. An apparatus for switching a cell, comprising:
a determination module for determining a signal quality value of a source cell;
the judging module is used for judging whether the signal quality value is smaller than a first preset value or not;
the determining module is further configured to determine a target cell according to a pre-established interoperation relationship between the source cell and the target cell when the determining module determines that the signal quality value is smaller than the first preset value;
a switching module, configured to switch a terminal device from the source cell to the target cell;
if the target cell is a non-high-speed rail cell;
the determining module is specifically configured to: determining signal quality values for m of the non-high speed rail cells; determining the n non-high-speed rail cells with the signal quality values larger than a second preset value as cells to be selected; and determining the target cell from the cells to be selected according to the interoperation relationship.
8. The apparatus of claim 7, wherein the target cell is a non-high-speed rail cell;
the determining module is specifically configured to:
determining distribution information of a base station corresponding to the target cell;
and determining the target cell according to the interoperation relationship and the distribution information.
9. The apparatus of claim 8, wherein the determining module is specifically configured to:
determining a second-layer backward cell or a third-layer cell of the base station corresponding to the target cell according to the distribution information;
determining the second layer of backward cells or the third layer of cells as neighbor cells of the target cell;
and determining the target cell according to the adjacent cell and the interoperation relation.
10. The apparatus of claim 7, wherein the target cell is a high-speed rail cell;
the switching module includes:
the obtaining submodule is used for obtaining the capacity of the high-speed rail cell and the current number of users in the high-speed rail cell;
and the processing submodule is used for switching the terminal equipment from the source cell to the target cell according to the capacity and the current number of users in the high-speed rail cell.
11. The apparatus of claim 10, wherein the processing submodule is specifically configured to:
judging whether the current number of users in the high-speed rail cell is smaller than the capacity;
and if the number of the current users in the high-speed rail cell is smaller than the capacity, switching the terminal equipment from the source cell to the target cell.
12. The apparatus according to any of claims 7-11, wherein the signal quality value comprises a received signal code power, RSCP.
13. A network device, comprising:
a processor;
a memory; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor, the computer program comprising instructions for performing the method of any of claims 1-6.
14. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program that causes a network device to perform the method of any one of claims 1-6.
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| CN111447654B (en) * | 2020-04-03 | 2021-12-14 | 北京运安智维科技有限公司 | Switching method and system of track traffic equal-line type networking terminal between different-frequency cells |
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