CN111343670A - A TDD and FDD layered method and device based on uplink rate guarantee - Google Patents

Abstract

The embodiment of the invention provides a TDD and FDD layering method and a device based on uplink rate guarantee, wherein the method comprises the following steps: if the judgment shows that the uplink average user experience rate of the time division duplex TDD cell is not greater than the first experience rate threshold value and the uplink synchronous state user number is not less than the first user number threshold value in the preset judgment period, triggering service layering based on uplink rate guarantee to obtain the large-service-volume UE with A4 event measurement and pilot frequency switching capacity in the TDD cell; acquiring a Frequency Division Duplex (FDD) cell with the lowest load in a neighboring cell; and if the cell uplink average user experience rate of the FDD cell is judged and known to be not less than the second experience rate threshold value, and the uplink synchronous state user number is not greater than the second user number threshold value, the UE with large service volume is switched to the FDD cell by A4. And improving the experience rate of the uplink user of the TDD cell.

Description

A TDD and FDD layered method and device based on uplink rate guarantee

technical field

Embodiments of the present invention relate to the technical field of mobile communications, and more particularly, to a method and apparatus for layering TDD and FDD based on uplink rate guarantee.

Background technique

With the development of mobile communication, good communication quality and fast data service will become the guarantee of the core competitiveness of operators, and also the goal of future development of mobile communication. In recent years, with the large-scale commercial use of LTE (Long Term Evolution) around the world, the demand for mobile data services has shown explosive growth. Time Division Duplexing (Time Division Duplexing)/FDD (Frequency Division Duplexing, Frequency Division Duplexing) converged networking has become an inevitable trend in the development of mobile communication networks. With the development of China Mobile's 4G network and the increase of users, operators in the LTE field will need to provide high-quality services through more spectrum resources, and 900MHz/1800MHz will inevitably develop towards FDD in the future. This brings new topics and challenges to the network optimization work. How to do a good job of reselection, handover strategy and load balancing mechanism of multiple frequency bands to ensure good user perception and full utilization of network resources is the key task of TDD/FDD converged networking.

At present, based on the reselection and handover parameter settings, the current network adopts load balancing technology to balance the service load between TDD and FDD cells, so as to avoid excessive load in local cells and reduce system performance, and reduce manual participation in network management and optimization. The load balancing function can be divided into three phases: measurement phase, decision phase and execution phase. In the measurement phase, the load balancing module continuously monitors and updates the load status of the serving cell and the load status of neighboring cells. If there is an X2 interface, obtain the load information of the adjacent cell of the different site through the X2 interface every 5 seconds (this time can be configured in the background, the default value is 5 seconds), or obtain the load information of the adjacent cell of the same base station through the internal message. In the judgment stage, the load balancing module judges whether the serving cell is in a high load state according to the measurement information collected in the measurement stage. If the serving cell is under high load, the load balancing execution phase will be triggered. Otherwise, the load measurement phase and the decision phase are repeated. In the execution phase, for the UE (User Experience, user experience)-based measurement handover method, some user equipments in the serving cell are selected to perform A4 (load balancing in LTE). The handover UE is handed over to a low-load neighbor cell.

Due to the different duplex modes of TDD and FDD, FDD uplink and downlink each occupy 20MHz, and TDD uplink and downlink share 20MHz. At this stage, the TDD uplink and downlink subframe configuration is usually 1:3 configuration. TDD is more prone to uplink restrictions than FDD. The subframe ratio makes the delay of some information feedback (such as HARQ ACK/NACK, or CQI) longer than the corresponding delay of LTE FDD, and the uplink throughput advantage of FDD is very obvious. Therefore, in the same wireless environment, users stay on FDD. The cell can obtain better uplink rate perception. The traditional load balancing method does not consider the service type of the UE. When the load of the TDD cell is high, the handover is only triggered according to the coverage situation to realize the load migration to the FDD cell. High-volume UEs refer to UEs with a large amount of data in the uplink buffer area, and they occupy more uplink resources of the cell). Migrating some small-traffic UEs to FDD cells has low equalization efficiency and may not effectively improve the user's perception rate.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a layered method and device for TDD and FDD based on uplink rate assurance that overcomes the above problem or at least partially solves the above problem.

In a first aspect, an embodiment of the present invention provides a layered method for TDD and FDD based on uplink rate guarantee, including:

If it is determined that within the preset decision period, the average uplink user experience rate of the time division duplex TDD cell is not greater than the first experience rate threshold, and the number of uplink synchronous users is not less than the first user number threshold, triggering a guarantee based on the uplink rate Service layering, obtaining UEs with large traffic volume in TDD cells with A4 event measurement and inter-frequency handover capabilities;

Obtain the frequency division duplex FDD cell with the lowest load in the neighboring cell; if it is determined that the average uplink user experience rate of the FDD cell is not less than the second experience rate threshold, and the number of uplink synchronization users is not greater than the second user number threshold, Then, perform A4 handover to the FDD cell for the large-traffic UE.

Preferably, the second experience rate threshold is greater than the first experience rate threshold; the first user number threshold is not less than the second user number threshold.

Preferably, it also includes:

If it is determined that within the preset decision period, the average uplink user experience rate of the TDD cell is greater than the first experience rate threshold, or the number of uplink synchronized users is less than the first user number threshold, the service stratification based on uplink rate guarantee is stopped. .

Preferably, obtaining a large-traffic UE with A4 event measurement and inter-frequency handover capabilities in a TDD cell specifically includes:

If the amount of data to be scheduled for each TTI user in the TDD cell is greater than the scheduled data amount threshold, it is determined that the TTI is a high-traffic TTI;

If, within the preset statistical period, the proportion of all the TTIs with high traffic volume of the user is not less than the preset proportion threshold, it is determined that the user is a UE with high traffic volume;

Acquire UEs with heavy traffic in TDD cells with A4 event measurement and inter-frequency handover capabilities.

Preferably, the ratio threshold is 80% to 95%.

Preferably, the frequency division duplex FDD cell with the lowest load in the neighboring cell is obtained, which specifically includes:

The neighbor cells reported based on the UE measurement are sorted according to the load from low to high to obtain the handover candidate target FDD cell queue, and the FDD cell that is ranked first in the handover candidate target FDD cell queue is obtained.

Preferably, the first experience rate threshold is 1000kbps; the second experience rate threshold is 15000kbps.

In a second aspect, an embodiment of the present invention provides a layered device for TDD and FDD based on uplink rate guarantee, including:

The first module is configured to determine that within a preset decision period, the average uplink user experience rate of the time division duplex TDD cell is not greater than the first experience rate threshold, and the number of uplink synchronization users is not less than the first user number threshold, then Trigger service stratification based on uplink rate assurance, and obtain large-traffic UEs with A4 event measurement and inter-frequency handover capabilities in TDD cells;

The second module is used to obtain the frequency division duplex FDD cell with the lowest load in the neighboring cell; if it is determined that the average uplink user experience rate of the cell in the FDD cell is not less than the second experience rate threshold, and the number of uplink synchronization users is not greater than For the second user number threshold, A4 handover is performed on the UE with large traffic volume to the FDD cell.

In a third aspect, an embodiment of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and running on the processor, the processor implementing the program as described in the first aspect when the processor executes the program Steps of the provided method.

In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of the method provided in the first aspect.

The embodiment of the present invention proposes a layered method and device for TDD and FDD based on uplink rate guarantee. By transferring a UE with a large uplink traffic, when the uplink user experience in a TDD cell is limited, the uplink load is transferred to the uplink user with a better experience. The target of improving the uplink user experience rate of TDD cells is the FDD cell.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic diagram of a layered method for TDD and FDD based on uplink rate assurance according to an embodiment of the present invention;

2 is a schematic flowchart of a specific flow chart of a TDD and FDD layered method based on uplink rate assurance according to an embodiment of the present invention;

3 is a schematic diagram of a layered device for TDD and FDD based on uplink rate guarantee according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a physical structure of an electronic device according to an embodiment of the present invention.

Detailed ways

In order to make the purposes, 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 accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Due to the different duplex modes of TDD and FDD, FDD uplink and downlink each occupy 20MHz, and TDD uplink and downlink share 20MHz. At this stage, the TDD uplink and downlink subframe configuration is usually 1:3 configuration. TDD is more prone to uplink restrictions than FDD. The subframe ratio makes the delay of some information feedback longer than the corresponding delay of LTE FDD, and the uplink throughput advantage of FDD is very obvious. Therefore, under the same wireless environment, users staying in FDD cells can obtain better uplink rate perception. The traditional load balancing method does not consider the service type of the UE. When the load of the TDD cell is high, the handover is only triggered according to the coverage situation to realize the load migration to the FDD cell. High-volume UEs refer to UEs with a large amount of data in the uplink buffer area, and they occupy more uplink resources of the cell). Migrating some small-traffic UEs to FDD cells has low equalization efficiency and may not effectively improve the user's perception rate.

Therefore, the embodiments of the present invention transfer the uplink load to the FDD cell with good uplink user experience when the uplink user experience of the TDD cell is limited, and improve the uplink user experience rate of the TDD cell by transferring the UE with large uplink traffic. The following will expand the description and introduction through multiple embodiments.

FIG. 1 is a layered method for TDD and FDD based on uplink rate guarantee provided by an embodiment of the present invention, including:

S1. If it is determined that within the preset decision period, the average uplink user experience rate of the time division duplex TDD cell is not greater than the first experience rate threshold, and the number of users in the uplink synchronization state is not less than the first user number threshold, trigger a trigger based on the uplink rate Guaranteed service stratification, obtaining large-traffic UEs with A4 event measurement and inter-frequency handover capabilities in TDD cells;

S2. Obtain the frequency division duplex FDD cell with the lowest load in the neighboring cell; if it is determined that the average uplink user experience rate of the FDD cell is not less than the second experience rate threshold, and the number of uplink synchronization users is not greater than the second number of users If the threshold value is exceeded, then perform A4 handover to the FDD cell for the high-traffic UE.

In this embodiment, as shown in FIG. 2 , after the service stratification task based on uplink experience guarantee is enabled, the eNodeB measures the uplink user experience rate of the cell and the number of uplink synchronized users in the cell every second. If the following two conditions are met, the service stratification based on uplink experience guarantee is triggered, that is: within the preset decision period, the average uplink user experience rate of the time division duplex TDD cell is not greater than the first experience rate threshold T1, and the uplink synchronization The number of state users is not less than the first user number threshold N1.

When the above triggering handover conditions are met, the eNodeB selects the uplink heavy-traffic UE for transfer in the serving cell, that is, selects the large-traffic UE with A4 event measurement and inter-frequency handover capabilities in the TDD cell for transfer.

Finally, obtain the frequency division duplex FDD cell with the lowest load in the neighboring cell; if it is determined that the average uplink user experience rate of the FDD cell is not less than the second experience rate threshold T2, and the number of uplink synchronization users is not greater than that of the second user If the number threshold is N2, A4 handover is performed on the UE with large traffic volume to the FDD cell, so as to realize the service layering of TDD and FDD.

In this embodiment, when the uplink user experience of the TDD cell is limited, the uplink load is transferred to the FDD cell with good uplink user experience by transferring the UE with large uplink traffic, and the goal of improving the uplink user experience rate of the TDD cell is achieved.

On the basis of the above embodiment, the second experience rate threshold T2 is greater than the first experience rate threshold T1; the first user number threshold N1 is not less than the second user number threshold N2.

In this embodiment, the first experience rate threshold T1 is 1000kbps; the second experience rate threshold T2 is 15000kbps.

In this embodiment, the above-mentioned first user number threshold N1 is not less than the above-mentioned second user number threshold N2.

On the basis of the above embodiment, specifically, the first user number threshold N1 and the second user number threshold N2 are both 100.

On the basis of the above embodiment, if the average uplink user experience rate of the cell is less than or equal to 1000kbps and the number of uplink synchronized users of the cell is greater than or equal to 100 within the preset decision period of 5S, service stratification based on uplink experience guarantee is triggered.

On the basis of the above embodiments, as shown in Figure 2, it also includes:

If it is determined that within the preset decision period, the average uplink user experience rate of the TDD cell is greater than the first experience rate threshold T1, or the number of uplink synchronized users is less than the first user number threshold N1, stop the service based on the uplink rate guarantee Layered.

In this embodiment, if the average uplink user experience rate of the cell is greater than 1000kbps or the number of uplink synchronized users in the cell is less than 100 within the preset decision period of 5S, the service stratification based on uplink experience guarantee is stopped.

On the basis of the above-mentioned embodiments, a large-traffic UE with A4 event measurement and inter-frequency handover capability in a TDD cell is obtained, as shown in FIG. 2 , which specifically includes:

If the amount of data to be scheduled for each TTI user in the TDD cell is greater than the scheduled data amount threshold, it is determined that the TTI is a high-traffic TTI;

If, within the preset statistical period, the proportion of all the TTIs with high traffic volume of the user is not less than the preset proportion threshold, it is determined that the user is a UE with high traffic volume;

Acquire UEs with heavy traffic in TDD cells with A4 event measurement and inter-frequency handover capabilities.

In this embodiment, after the handover trigger condition is satisfied, the eNodeB selects the uplink high-traffic UE for handover in the serving cell, and the judgment conditions for the high-traffic UE are as follows:

Within a preset period (which can be 5s), each TTI calculates the amount of data to be scheduled by the user. If the amount of data to be scheduled by the user is greater than the threshold of the amount of dispatched data, in this embodiment, the threshold of the amount of dispatched data is 1000 bytes, then the TTI is determined. It is the user's high-traffic TTI; the number of all high-traffic TTIs of the user is counted within a preset period, and when the proportion is greater than or equal to the preset proportion threshold, the user is judged as a high-traffic UE, and the high-traffic UE is screened out Then, it is judged whether the UE has the capability of A4 measurement and inter-frequency handover, and if so, the FDD target cell selection is performed.

Based on the above embodiments, the ratio threshold is 80% to 95%.

In this embodiment, as a preferred implementation manner, the ratio threshold is 90%.

On the basis of the above embodiments, the frequency division duplex FDD cell with the lowest load in the neighboring cells is obtained, as shown in FIG. 2 , which specifically includes:

The neighbor cells reported based on the UE measurement are sorted according to the load from low to high to obtain the handover candidate target FDD cell queue, and the FDD cell that is ranked first in the handover candidate target FDD cell queue is obtained.

On the basis of the above embodiments, the adjacent cells measured and reported by the UE are sorted in the order of load from low to high by the load balancing module, and a queue of handover candidate target FDD cells is obtained, wherein the FDD cell with the lowest load is ranked first in the queue , within the preset decision period of 5S, if the FDD cell satisfies the average uplink user experience rate of the cell ≥ 15000kbps and the number of users in the uplink synchronization state of the cell ≤ 100, then the selected high-traffic UE will perform A4 handover to the FDD cell to achieve Service layering between TDD and FDD.

An embodiment of the present invention further provides a TDD and FDD layering apparatus based on uplink rate guarantee, based on the TDD and FDD layering methods based on uplink rate guarantee in the above embodiments, as shown in FIG. 3 , including a first module 30 and a second module 40, where:

If the first module 30 determines that within the preset decision period, the average uplink user experience rate of the time division duplex TDD cell is not greater than the first experience rate threshold, and the number of users in the uplink synchronization state is not less than the first user number threshold, triggering based on Service stratification for uplink rate assurance, obtaining large-traffic UEs with A4 event measurement and inter-frequency handover capabilities in TDD cells;

The second module 40 obtains the frequency division duplex FDD cell with the lowest load in the neighboring cell; if it is determined that the average uplink user experience rate of the FDD cell is not less than the second experience rate threshold, and the number of uplink synchronization users is not greater than the second If the threshold of the number of users is set, A4 handover is performed on the UE with large traffic volume to the FDD cell.

FIG. 4 is a schematic diagram of an entity structure of an electronic device provided by an embodiment of the present invention. As shown in FIG. 4 , the electronic device may include: a processor (processor) 810, a communications interface (Communications Interface) 820, a memory (memory) 830, and a communication The bus 840, wherein the processor 810, the communication interface 820, and the memory 830 complete the communication with each other through the communication bus 840. The processor 810 can call a computer program stored in the memory 830 and run on the processor 810 to execute the TDD and FDD layering methods based on uplink rate guarantee provided by the foregoing embodiments, for example, including:

If it is determined that within the preset decision period, the average uplink user experience rate of the time division duplex TDD cell is not greater than the first experience rate threshold, and the number of uplink synchronous users is not less than the first user number threshold, triggering a guarantee based on the uplink rate Service layering, obtaining UEs with large traffic volume in TDD cells with A4 event measurement and inter-frequency handover capabilities;

Obtain the frequency division duplex FDD cell with the lowest load in the neighboring cell; if it is determined that the average uplink user experience rate of the FDD cell is not less than the second experience rate threshold, and the number of uplink synchronization users is not greater than the second user number threshold, Then, perform A4 handover to the FDD cell for the large-traffic UE.

In addition, the above-mentioned logic instructions in the memory 830 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solutions of the embodiments of the present invention are essentially, or the parts that make contributions to the prior art or the parts of the technical solutions can be embodied in the form of software products, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

Embodiments of the present invention further provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, is implemented to perform the uplink rate guarantee-based TDD and FDD splitting provided by the foregoing embodiments. Layer methods, for example, include:

If it is determined that within the preset decision period, the average uplink user experience rate of the time division duplex TDD cell is not greater than the first experience rate threshold, and the number of uplink synchronous users is not less than the first user number threshold, triggering a guarantee based on the uplink rate Service layering, obtaining UEs with large traffic volume in TDD cells with A4 event measurement and inter-frequency handover capabilities;

Obtain the frequency division duplex FDD cell with the lowest load in the neighboring cell; if it is determined that the average uplink user experience rate of the FDD cell is not less than the second experience rate threshold, and the number of uplink synchronization users is not greater than the second user number threshold, Then, perform A4 handover to the FDD cell for the large-traffic UE.

An embodiment of the present invention also provides a computer program product disclosed in this embodiment, where the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, and when the program instructions When executed by a computer, the computer can execute the above-mentioned TDD and FDD layering method based on uplink rate guarantee, for example, including:

If it is determined that within the preset decision period, the average uplink user experience rate of the time division duplex TDD cell is not greater than the first experience rate threshold, and the number of uplink synchronous users is not less than the first user number threshold, triggering a guarantee based on the uplink rate Service layering, obtaining UEs with large traffic volume in TDD cells with A4 event measurement and inter-frequency handover capabilities;

Obtain the frequency division duplex FDD cell with the lowest load in the neighboring cell; if it is determined that the average uplink user experience rate of the FDD cell is not less than the second experience rate threshold, and the number of uplink synchronization users is not greater than the second user number threshold, Then, perform A4 handover to the FDD cell for the large-traffic UE.

To sum up, the embodiments of the present invention provide a layered method and device for TDD and FDD based on uplink rate guarantee, by transferring a UE with a large uplink traffic volume, it is possible to transfer the uplink load when the uplink user experience of the TDD cell is limited. To the FDD cell with good uplink user experience, the goal of improving the uplink user experience rate of the TDD cell.

The device embodiments described above are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

From the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on this understanding, the above-mentioned technical solutions can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic A disc, an optical disc, etc., includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A TDD and FDD layering method based on uplink rate guarantee is characterized by comprising the following steps:

if the judgment shows that the uplink average user experience rate of the time division duplex TDD cell is not greater than the first experience rate threshold value and the uplink synchronous state user number is not less than the first user number threshold value in the preset judgment period, triggering service layering based on uplink rate guarantee to obtain the large-service-volume UE with A4 event measurement and pilot frequency switching capacity in the TDD cell;

acquiring a Frequency Division Duplex (FDD) cell with the lowest load in a neighboring cell; and if the cell uplink average user experience rate of the FDD cell is judged and known to be not less than the second experience rate threshold value, and the uplink synchronous state user number is not greater than the second user number threshold value, the UE with large service volume is switched to the FDD cell by A4.

2. The uplink rate guarantee based TDD and FDD layering method according to claim 1, wherein the second empirical rate threshold is greater than the first empirical rate threshold; the first user number threshold is not less than the second user number threshold.

3. The uplink rate guarantee-based TDD and FDD layering method according to claim 1, further comprising:

and if the uplink average user experience rate of the TDD cell is larger than a first experience rate threshold value or the number of uplink synchronous state users is smaller than a first user number threshold value within a preset judgment period, stopping service layering based on uplink rate guarantee.

4. The uplink rate guarantee-based TDD and FDD layering method of claim 1, wherein obtaining a large traffic UE with a4 event measurement and pilot frequency switching capability in a TDD cell specifically comprises:

if the data volume to be scheduled of each transmission interval TTI user in the TDD cell is larger than the threshold value of the data volume to be scheduled, judging that the TTI is a large-traffic TTI;

if the ratio of all large-traffic TTI numbers of the user is not less than a preset ratio threshold value in a preset statistical period, judging that the user is large-traffic UE;

and acquiring the large-traffic UE with A4 event measurement and pilot frequency switching capability in the TDD cell.

5. The uplink rate guarantee-based TDD and FDD layering method according to claim 4, wherein said ratio threshold is 80% -95%.

6. The TDD/FDD layering method based on uplink rate guarantee according to claim 1, wherein obtaining a Frequency Division Duplex (FDD) cell with a lowest load in a neighboring cell specifically comprises:

and sequencing the adjacent cells reported based on the UE measurement according to the load from low to high to obtain a switching candidate target FDD cell queue, and obtaining the FDD cell arranged at the head of the queue in the switching candidate target FDD cell queue.

7. The uplink rate guarantee-based TDD and FDD layering method according to claim 2, wherein the first experience rate threshold is 1000 kbps; the second experience rate threshold is 15000 kbps.

8. A TDD and FDD layering device based on uplink rate guarantee, characterized by that includes:

a first module, configured to trigger a service layering based on uplink rate guarantee if it is determined that an uplink average user experience rate of a Time Division Duplex (TDD) cell is not greater than a first experience rate threshold and an uplink synchronization state user number is not less than a first user number threshold within a preset determination period, and obtain a large-traffic UE with a4 event measurement and inter-frequency handover capabilities in the TDD cell;

a second module, configured to obtain a frequency division duplex FDD cell with a lowest load in a neighboring cell; and if the cell uplink average user experience rate of the FDD cell is judged and known to be not less than the second experience rate threshold value, and the uplink synchronous state user number is not greater than the second user number threshold value, the UE with large service volume is switched to the FDD cell by A4.

9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method according to any of claims 1 to 7 are implemented when the processor executes the program.

10. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.

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