WO2019000778A1

WO2019000778A1 - Method and apparatus for constructing virtual cell

Info

Publication number: WO2019000778A1
Application number: PCT/CN2017/109854
Authority: WO
Inventors: 曾捷; 粟欣; 李菁菁; 刘蓓; 许希斌; 赵明
Original assignee: 清华大学
Priority date: 2017-06-30
Filing date: 2017-11-08
Publication date: 2019-01-03
Also published as: CN107509223A; CN107509223B

Abstract

Disclosed in the present application are a method and apparatus for constructing a virtual cell, used for solving the problem in the prior art of, when a user is in a state of motion, an access point connected to the user frequently switching and thus causing the user's current service to be disrupted and user experience to be affected, said method comprising: determining all first access points in a network that are capable of establishing a communications connection with a user during a subsequent preset time interval; determining the quality of service of each of said first access points, and the tendency of said user to select each of the first access points; according to the quality of service of each of the first access points and the user's tendency to select each of the first access points, determining the priority of the user to access each first access point within said preset time interval; according to the priority of each of the first access points, determining a target access point and adding said target access point to the virtual cell centered on the user.

Description

Method and device for constructing virtual cell

Technical field

The present application relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for constructing a virtual cell.

Background technique

With the rapid development of the mobile Internet and the Internet of Things, various new business applications have emerged, which brings convenience to people's lives. At the same time, it also puts higher requirements on mobile communication networks to cope with mobile network data. Explosive growth of traffic to meet the user's experience rate. In order to cope with this demand, existing technologies often form ultra-dense networking, that is, by deploying more "dense" wireless network infrastructure, for example, adding mobile communication network units. The density of small base stations within the area to achieve higher frequency division multiplexing efficiency, thereby achieving a hundredfold increase in system capacity in local hotspot areas.

In order to meet the needs and technical challenges of typical application scenarios, the user-centric virtual cell will eliminate the cell edge and break the concept of the traditional "cell". In a user-centric virtual cell, a user may select a plurality of access points around the user to form a set of service antennas according to certain criteria, and the antennas in the set jointly provide services for users in the "center".

In the above scenario, when a user moves in an area including multiple access points, the access point in the user-centered virtual cell is also updated as the user moves, so that some of the original virtual cells do not have An access point that can serve the user will join the virtual cell, and some access points in the original virtual cell that no longer satisfy the user service condition will be removed from the virtual cell, as shown in FIG. When the small interval moves, the access point connected to the user will switch frequently, which will cause the user's current service to generate an interrupt delay, thereby affecting the user experience.

Summary of the invention

The embodiment of the present application provides a method for constructing a virtual cell, which is used to solve the problem that when an access state connected to a user is frequently switched, causing the current service interruption of the user and affecting the user experience when the user is in a mobile state in the prior art. .

The embodiment of the present application further provides a device for constructing a virtual cell, which is used to solve the problem that when the user is in a mobile state, the access point connected to the user will be frequently switched, causing the current service interruption of the user and affecting the user experience. problem.

The embodiments of the present application adopt the following technical solutions:

A method for constructing a virtual cell, comprising:

Determining, in a next preset time interval, each first access point in the network capable of establishing a communication connection with the user;

Determining a quality of service of each of the first access points, and a preference propensity of the user for each of the first access points, the selection propensity for indicating that in the next preset time interval a user's tendency to access the first access point;

Determining that the user accesses each of the first connections in the preset time interval according to the quality of service of the first access point and the user's preference for each of the first access points. Priority of the entry point;

Determining a target access point according to a priority of each of the first access points, and adding the target access point to a virtual cell centered on the user.

A virtual cell construction apparatus includes:

a first determining unit, configured to determine, in a next preset time interval, each first access point in the network that can establish a communication connection with the user;

a second determining unit, configured to determine a quality of service of each of the first access points, and a preference preference of the user for each of the first access points, where the selection preference is used to indicate that a degree of inclination of the user to access the first access point in a next preset time interval;

a third determining unit, configured to determine, according to the quality of service of each of the first access points and the user's preference for each of the first access points, that the user is connected within the preset time interval The priority of each of the first access points;

And a fourth determining unit, configured to determine a target access point according to a priority of each of the first access points, and join the target access point to a virtual cell centered on the user.

The above at least one technical solution adopted by the embodiment of the present application can achieve the following beneficial effects:

In the present application, since each first access point in the network capable of establishing a communication connection with the user can be determined, and the quality of service of each first access point and the user's preference for each first access point are determined, the selection is The propensity is used to indicate the degree of tendency of the user to select the first access point in the next preset time interval, and then according to the quality of service of each first access point and the user's preference for each first access point. Determining the priority of the user accessing each of the first access points in a preset time interval, and finally determining the target access point according to the priority of each first access point, and adding the target access point to the user-centered Virtual cell. Then, when the user moves between multiple cells, since each target access point in the user-centered virtual cell is determined according to the priority, the switching of the access point connected to the user can be reduced, thereby reducing the connection. The interrupt delay caused by the in-point switch can improve the user experience.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the present application, and are intended to be a part of this application. In the drawing:

1 is a schematic diagram of a user-centered virtual cell in the prior art;

2 is a schematic flowchart of implementing a method for constructing a virtual cell according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a device for constructing a virtual cell according to an embodiment of the present disclosure.

Detailed ways

The technical solutions of the present application will be clearly and completely described in the following with reference to the specific embodiments of the present application and the corresponding drawings. It is apparent that the described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

In order to solve the problem that the access point connected to the user is frequently switched to cause the current service interruption of the user and affect the user experience, the embodiment of the present application provides a method for constructing a virtual cell. The execution body of the method may be a control plane, such as a macro base station, or any device that implements the method provided by the present application. In the following, the implementation body of the method is a control plane, and the implementation manner of the method is described in detail. It can be understood that the execution body of the method is only an exemplary description of the control surface, and should not be understood as Method definition.

The schematic diagram of the implementation process of the method is shown in Figure 2a, including:

Step 11: Determine, in a next preset time interval, each first access point in the network that can establish a communication connection with the user;

The next preset time interval may be the next time interval of the user relative to the current time interval, and the size of the preset time interval is often greater than the time taken to implement the method provided by the present application, and the specific The value can be determined according to the actual situation, for example, it can be determined according to information such as the current moving speed of the user. The user in the embodiment of the present application may be a mobile terminal, such as a smart phone, a wearable device, or the like, which can implement a wireless communication service. The access point in the embodiment of the present application may be an access point that can establish a communication connection with the user, so that the user can implement a wireless communication service, such as a wireless access point, a small base station, or the like.

Specifically, it is determined that the network can establish communication with the user in the next preset time interval. The connected first access point may first receive the first message of the user and the second message of each access point in the network; and then may be located according to the user included in the first message in the next preset time interval. The predicted location, the coverage of each first access point included in each second message, and the signal received power are used to determine a first access point in the network that can establish a communication connection with the user in the next preset time interval.

The first access point that can establish a communication connection with the user in the network, on the one hand, according to each predicted location included in the first message, the coverage of each first access point included in each second message, To determine whether each predicted position is within the coverage of an access point, and if it is determined that the user is within a next preset time interval and a certain predicted position is within the coverage of an access point, then it may be determined The first access point corresponding to the coverage area is an access point that can be connected to the user; on the other hand, the received power of the signal included in the second message may be used to determine whether the received power of the signal is greater than a preset value, if If the received power of the signal is greater than a preset value, it may be determined that the access point corresponding to the received power of the signal is a first access point capable of establishing a communication connection with the user.

Step 12: Determine the service quality of each first access point and the user's preference for each first access point, where the preference is selected to indicate that the user selects the first access in the next preset time interval. The degree of inclination of the entry point;

First, the service quality of each first access point that can establish a communication connection with the user may be separately determined according to the transmit power and the load of the access point included in the second message, which may be specifically determined by a formula.

To determine, where P _j is the transmit power of the first access point j and L _j is the load of the first access point j.

Then, according to the predicted position that the user may be located in the next preset time interval, the predicted speed when the predicted position is located, the first predicted path when the user is at each preset position, and the user are each The probability at the predicted location, and the coverage of each of the first access points included in each second message are determined.

The specific process of determining the user's preference for the first access point j is described in detail below by taking the predicted location m that the user may be located in the next preset time interval, and the first access point j as an example. First, Determining, according to the first predicted path s _m included in the first message and the coverage of the first access point j included in the second message, the second predicted path s _m included in the coverage included in the first predicted path _{, j} ; then determining the dwell time t _{m,j of the} user within the coverage of the first access point j according to the second predicted path s _m,j and the predicted speed v _{m of the} user at the predicted position m; finally, the predicted location m, the predicted probability of the user P _m at position m and a residence time t _{m, j,} to determine the predisposition of the user selects the first access point j. It should be noted that each predicted position that the user may be located in the next preset time interval, the predicted speed at each predicted position, each first predicted path including each predicted position, and the user in each prediction The probability at the location can be obtained by the user based on his own historical location information, historical action trajectory, current action trajectory, and the flow of people in the area.

Wherein, according to the second predicted path and the predicted speed, determining the dwell time of the user within the coverage, specifically by using a formula

Determining, wherein the second predicted path s _m,j is a portion of the first expected path s _m within the coverage of the first access point j when the user is at the predicted position m, and v _m is the user at the predicted position m The speed of prediction. Since it is possible to determine the dwell time of the user within the coverage of each first access point in the next preset time interval, when determining the access point in the virtual cell, it is possible to consider the access point with a long dwell time. The priority is added to the virtual cell, so that the problem that the user's current service interruption is caused by frequent switching of the access point connected to the user when the user moves.

Finally, the user may determine the first access point j according to the set M of the predicted positions that the user may be located in the next preset time interval, the probability of the user at the predicted position m(m∈M), and the dwell time. The propensity to choose, specifically through the formula

To determine, where M is a set of predicted locations that the user may be located in the next preset time interval, _m ∈ _M , P _m is the probability that the user is at the predicted position m in the next preset time interval, d _m,j is The distance between the user and the first access point j when the user is located at the predicted position m in the next preset time interval, t _m,j is the resident of the user within the coverage of the first access point j as described above. Leave time.

Step 13: Determine, according to the quality of service of each first access point and the user's preference for each first access point, the priority of the user accessing each first access point in the preset time interval;

The method for determining the priority of the user accessing the first access point j is described along with the first access point j as an example. Specifically, the user accessing the first access point may be determined by using the formula A _j =αB _j +βU _j . The priority of j, where B _j is the quality of service of the first access point j described above, and U _j is the user's preference for the first access point j described above, α, β∈ [0, 1], and α + β = 1, α and β are preset coefficients, and the specific values thereof can be set according to specific parameters such as the service quality of each access point.

Step 14: Determine the target access point according to the priority of each first access point, and add the target access point to the virtual cell with the user as the center.

Determining the target access point according to the priority of each of the first access points, and specifically, determining, in the second access point, the target access points whose sum of the experience rates is greater than or equal to the preset experience rate, where The second access point in the embodiment of the present application is a first access point that can establish a communication connection with the user, in order to facilitate the user to accurately determine the experience rate after establishing a communication connection with each of the first access points. In addition, in order to preferentially select an access point with a higher priority to join the user-centered virtual cell, the priority of each target access point is often higher than the priority of the third access point, where the third connection The ingress point is an access point other than the target access point in the second access point.

And determining, in the second access point, the target access points whose sum of the experience rates is greater than or equal to the preset experience rate, determining the target access points according to the priority from highest to lowest, wherein the target access points The number of points is the minimum amount that satisfies the sum of the experience rates greater than or equal to the preset experience rate. Specifically, the following operations may be performed on the first access point in order from the highest to the lowest priority: first, determine whether the user can establish a communication connection with the first access point; if it is determined that the user can connect with the first access Determining a communication connection, determining a first experience rate after the user establishes a communication connection with the first access point; and then determining whether the determined sum of the first experience rates is greater than or equal to The preset experience rate is determined. If it is determined that the sum of the experience rates is greater than or equal to the preset experience rate, each first access point that has determined the first experience rate is determined as the target access point.

In order to be able to sequentially determine the access points in each of the first access points whose priorities meet the preset conditions, and determine the first access points in the network that can establish a communication connection with the user in the next preset time interval, The number n of the first access points can also be determined. Then, an array J={j ₁ , j ₂ , . . . , j _n } including each first access point may be constructed in an order of increasing priority, wherein j _i is the first access point, i ∈[1,n], and finally determine the target access point from array J. In the following, taking the number of the first access points included in the array J as 6 as an example, the specific implementation process of determining the target access point from each of the second access points is described in detail:

Step i, starting from the first access point j ₁ , determining whether the user can establish a communication connection with the first access point j ₁ ;

Step ii, if it is determined that the user can establish a communication connection with the first access point j ₁ , step iii is performed, if it is determined that the user cannot establish a communication connection with the first access point j ₁ , step v is performed;

Step iii, the user determines the first access point j ₁ rate after the establishment of a communication connection experience R ₁ is greater than or equal to a preset speed experience R _req;

Step iv, if it is determined that R ₁ ≥ R _req , the first access point j _{1 is} added to the user-centered virtual cell, if it is determined that R ₁ <R _req , step v is performed;

Step v, determining whether the user can establish a communication connection with the first access point j ₂ ;

Step vi, if it is determined that the user can establish a communication connection with the first access point j ₂ , step vii is performed, if it is determined that the user cannot establish a communication connection with the first access point j ₂ , step viii is performed;

Step vii, determining whether the sum of the experience rates R ₂ and R ₁ after the user establishes a communication connection with the first access point j ₂ is greater than or equal to the preset experience rate R _req ;

Step viiii, if it is determined that R ₁ + R ₂ ≥ R _req , the first access points j ₁ and j _{2 are} added to the user-centered virtual cell, and if R ₁ + R ₂ <R _{req is determined} , execution is performed Step ix;

Step ix, determining whether the user can establish a communication connection with the first access point j ₃ ;

......

By analogy, the target access points whose sum of the experience rates are greater than or equal to the preset experience rate can be determined from the second access point, and finally, the target access points are added to the user-centered virtual cell. . It should be noted that, in the present application, in order to avoid a large amount of computation, it is preferable to terminate each target access point after determining that the sum of the experience rates is greater than or equal to the preset experience rate from the second access point. The judgment operation of the access point other than the target access point in the array J.

In this application, the determined target access points may be added to the user-centered virtual cell before the next preset time interval, so that the user's location movement does not cause connection in the next preset time interval. The switching of the access point can further avoid the problem that the user's current service interruption affects the user experience.

In the prior art, in the prior art, when the user is in a mobile state, the access point connected to the user will be frequently switched, causing the current service interruption of the user, thereby affecting the user experience. The embodiment of the present application further provides a virtual cell construction apparatus. As shown in Figure 3, it includes the following functional units:

The first determining unit 21 is configured to determine that the network can be used in the next preset time interval. The first access point of the communication connection is established by the user;

a second determining unit 22, configured to determine a quality of service of each of the first access points, and a preference preference of the user for each of the first access points, where the selection preference is used to indicate that Describe the degree of tendency of the user to access the first access point in the next preset time interval;

a third determining unit 23, configured to determine, according to the quality of service of each of the first access points and the user's preference for each of the first access points, that the user is within the preset time interval Accessing the priority of each of the first access points;

The fourth determining unit 24 is configured to determine, according to priorities of the first access points, a target access point, and join the target access point to a virtual cell centered on the user.

In an embodiment, the fourth determining unit 24 is specifically configured to:

Determining, in the second access point, each of the target access points whose sum of experience rates is greater than or equal to a preset experience rate, wherein the second access point is the first one capable of establishing a communication connection with the user An access point; each of the target access points has a higher priority than a third access point, and the third access point is other than the target access point of the second access point. Access Point.

In an embodiment, the fourth determining unit 24 is specifically configured to:

Each of the target access points is determined according to a priority from high to low, and the number of the target access points is a minimum number that satisfies the sum of the experience rates greater than or equal to the preset experience rate.

In an implementation manner, the performing, in descending order of priority, sequentially performing the following operations on the first access point:

Determining whether the user can establish a communication connection with the first access point;

Determining, by the user, that the user can establish a communication connection with the first access point, determining a first experience rate after the user establishes a communication connection with the first access point;

Determining whether the determined sum of the first experience rates is greater than or equal to a preset experience rate;

If it is determined that the determined sum of the first experience rates is greater than or equal to the preset experience rate, each of the first access points that have determined the first experience rate is determined as the target access point.

In an embodiment, the first determining unit 21 is specifically configured to:

Receiving a first message of the user and a second message of each access point in the network;

Receiving coverage and signal reception of each of the second access points included in each of the second messages, according to the predicted location that the user may be located in the preset time interval included in the first message Power, determining each of the first access points in the network that are capable of establishing a communication connection with the user.

In an embodiment, the second determining unit 22 is specifically configured to:

Determining a service quality of each of the first access points according to a transmit power and a load of each of the second access points included in each of the second messages;

Determining, according to each predicted position included in the first message, each predicted speed when the user is located in each of the predicted positions in the preset time interval, and the user is located in the preset time interval Each of the first predicted paths at each of the predicted positions, and a probability that the user is located at each of the predicted positions within the preset time interval, and each of the second connections included in each of the second messages The coverage of the ingress point determines the user's preference for each of the first access points;

The quality of service is through the formula

Determining, wherein P _j is the transmit power of the first access point j, and L _j is the load of the first access point j.

In an embodiment, the second determining unit 22 is further configured to:

Determining, according to each of the first predicted path included in the first message and each coverage area included in each of the second messages, each of the first predicted paths is included in each of the coverage areas Second predicted path;

Determining, according to each of the second predicted paths and each of the predicted speeds, a dwell time of the user within each of the coverage areas;

Determining a preference tendency of the user for each of the first access points according to each of the predicted locations, a probability that the user is located in each of the predicted locations, and each of the camping times;

The dwell time is through a formula

Determining, wherein s _m,j is a second predicted path, and the second predicted path s _m,j is a portion of the first predicted path s _m within the coverage of the first access point j, The first predicted path s _m is a first predicted path of the user at the predicted position m, and v _m is a predicted speed of the user at the predicted position m;

The selection tendency is through a formula

Determining, wherein M is a set of each of the predicted positions of the user in the preset time interval, _m ∈ _M , P _m is a probability that the user is located at the predicted position m, d _m,j a distance between the user and the first access point j when the user is located at the predicted position m, t _m,j is a dwell time of the user within the coverage of the first access point j .

In an embodiment, the priority is determined by a formula A _j =αB _j +βU _j , where B _j is the quality of service of the first access point j, and U _j is the user The selection preference of the first access point j, α and β are preset coefficients, α, β ∈ [0, 1], and α + β = 1.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Therefore, the present application can adopt an entirely hardware embodiment, complete software implementation. For example, or in combination with an embodiment of software and hardware aspects. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of the method, apparatus (system), and computer program product of the embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include non-persistent memory, random access memory (RAM), and/or non-volatile memory in a computer readable medium, such as read only memory (ROM) or flash memory (flash) RAM). Memory is an example of a computer readable medium.

Computer readable media includes both permanent and non-persistent, removable and non-removable media. Information storage can be implemented by any method or technology. The information can be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory. (ROM), electrically erasable programmable read only memory (EEPROM), flash memory or other memory technology, compact disk read only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, Magnetic tape cartridges, magnetic tape storage or other magnetic storage devices or any other non-transportable media can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary storage of computer readable media, such as modulated data signals and carrier waves.

It is also to be understood that the terms "comprises" or "comprising" or "comprising" or any other variations are intended to encompass a non-exclusive inclusion, such that a process, method, article, Other elements not explicitly listed, or elements that are inherent to such a process, method, commodity, or equipment. An element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in a process, method, article, or device that comprises the element, without further limitation.

The above is only an embodiment of the present application and is not intended to limit the application. Various changes and modifications can be made to the present application by those skilled in the art. Any modifications, equivalents, improvements, etc. made within the spirit and scope of the present application are intended to be included within the scope of the appended claims.

Claims

A method for constructing a virtual cell, comprising:

Determining, in a next preset time interval, each first access point in the network capable of establishing a communication connection with the user;

Determining a service quality of each of the first access points, and a preference preference of the user for each of the first access points, where the selection preference is used to indicate that the user is within the preset time interval. Selecting a degree of propensity to access the first access point;

Determining that the user accesses each of the first connections in the preset time interval according to the quality of service of the first access point and the user's preference for each of the first access points. Priority of the entry point;

Determining a target access point according to a priority of each of the first access points, and adding the target access point to a virtual cell centered on the user.
The method of claim 1, wherein determining the target access point according to the priority of each of the first access points comprises:

Determining, in the second access point, each of the target access points whose sum of experience rates is greater than or equal to a preset experience rate, wherein the second access point is the first one capable of establishing a communication connection with the user An access point; each of the target access points has a higher priority than a third access point, and the third access point is other than the target access point of the second access point. Access Point.
The method of claim 2, wherein determining the target access point in the second access point that the sum of the experience rates is greater than or equal to the preset experience rate comprises:

Each of the target access points is determined according to a priority from high to low, and the number of the target access points is a minimum number that satisfies the sum of the experience rates greater than or equal to the preset experience rate.
The method of claim 3, wherein determining each of the target access points according to a priority from high to low, specifically comprising:

Performing the following operations on the first access point in order according to the order of priority from high to low:

Determining whether the user can establish a communication connection with the first access point;

Determining, by the user, that the user can establish a communication connection with the first access point, determining a first experience rate after the user establishes a communication connection with the first access point;

Determining whether the determined sum of the first experience rates is greater than or equal to the preset experience rate;

If it is determined that the determined sum of the first experience rates is greater than or equal to the preset experience rate, each of the first access points that have determined the first experience rate is determined as the target access point.
The method of claim 1 , wherein determining the first access point in the network that is capable of establishing a communication connection with the user in the next preset time interval comprises:

Receiving a first message of the user and a second message of each access point in the network;

Receiving coverage and signal reception of each of the first access points included in each of the second messages according to the predicted location that the user may be located in the preset time interval included in the first message Power, determining each of the first access points in the network that are capable of establishing a communication connection with the user.
The method according to claim 4, wherein determining the quality of service of each of the first access points and the user's preference for each of the first access points comprises:

Determining a service quality of each of the first access points according to a transmit power and a load of each of the second access points included in each of the second messages;

Determining, according to each predicted position included in the first message, each predicted speed when the user is located in each of the predicted positions in the preset time interval, and the user is located in the preset time interval Each of the first predicted paths at each of the predicted positions, and a probability that the user is located at each of the predicted positions within the preset time interval, and each of the second connections included in each of the second messages The coverage of the ingress point determines the user's preference for each of the first access points;

The quality of service is through the formula
Determining, wherein P j is the transmit power of the first access point j, and L j is the load of the first access point j.
The method according to claim 6, wherein determining the user's preference for each of the first access points comprises:

Determining, according to each of the first predicted path included in the first message and each coverage area included in each of the second messages, each of the first predicted paths is included in each of the coverage areas Second predicted path;

Determining, according to each of the second predicted paths and each of the predicted speeds, a dwell time of the user within each of the coverage areas;

Determining a preference tendency of the user for each of the first access points according to each of the predicted locations, a probability that the user is located in each of the predicted locations, and each of the camping times;

The dwell time is through a formula
Determining, wherein s m,j is a second predicted path, and the second predicted path s m,j is a portion of the first predicted path s m within the coverage of the first access point j, The first predicted path s m is a first predicted path of the user at the predicted position m, and v m is a predicted speed of the user at the predicted position m;

The selection tendency is through a formula
Determining, wherein M is a set of each of the predicted positions of the user in the preset time interval, m ∈ M , P m is a probability that the user is located at the predicted position m, d m,j a distance between the user and the first access point j when the user is located at the predicted position m, t m,j is a dwell time of the user within the coverage of the first access point j .
The method of claim 1 wherein said priority is determined by a formula A j = αB j + βU j , wherein B j is a quality of service of said first access point j, U j is The preference preference of the user for the first access point j, α and β are preset coefficients, α, β∈[0, 1], and α+β=1.
A device for constructing a virtual cell, comprising:

a first determining unit, configured to determine, in the next preset time interval, a user in the network Establishing each first access point of the communication connection;

a second determining unit, configured to determine a quality of service of each of the first access points, and a preference preference of the user for each of the first access points, where the selection preference is used to indicate that a degree of inclination of the user to access the first access point in a next preset time interval;

a third determining unit, configured to determine, according to the quality of service of each of the first access points and the user's preference for each of the first access points, that the user is connected within the preset time interval The priority of each of the first access points;

And a fourth determining unit, configured to determine a target access point according to a priority of each of the first access points, and join the target access point to a virtual cell centered on the user.
The apparatus according to claim 9, wherein the fourth determining unit is specifically configured to:

Determining, in the second access point, each of the target access points whose sum of experience rates is greater than or equal to a preset experience rate, wherein the second access point is the first one capable of establishing a communication connection with the user An access point; each of the target access points has a higher priority than a third access point, and the third access point is other than the target access point of the second access point. Access Point.