A method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP

Abstract

The present application provides a method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP, which relates to the technical field of wireless communication networks. The method comprises extracting a ping-pong suppression area and a communication stability area in a multi-cell environment from a terminal device based on a switching frequency in communication switching information, determining a communication stability feature of the terminal device according to the communication stability area, and then determining a switching suppression amount of each cell user base station in the cell environment through the communication stability feature and the switching suppression in the ping-pong suppression area; determining a switching stability of communication switching in the terminal device according to all the switching suppression amounts, and determining a switching threshold difference of each cell user base station through the switching stability; and performing real-time communication switching of each cell user base station in the multi-cell environment using each switching threshold difference. The present application can realize personalized stable switching of communication targets in the terminal device in the multi-cell environment, thereby reducing the ping-pong phenomenon of the terminal device in the multi-cell environment of LTE and NR.

Description

Technical Field

[0001] The present application relates to the technical field of wireless communication networks, and more specifically, to a method for reducing ping-pong phenomena in a multi-cell environment of LTE and NR based on RSRP. Background Art

[0002] Communications in multi-cell environments have made significant progress in recent years. With the advancement of 5G and future 6G technologies, it has become an important research direction in the field of wireless communications. In a multi-cell environment, multiple cells jointly cover an area and work together to improve network capacity, coverage and user experience. Currently, research focuses include interference management, resource optimization, heterogeneous network collaboration, cross-cell scheduling, and network slicing. As network density increases, traditional single-cell scheduling and management methods are gradually unable to meet demand, and multi-cell collaboration has become the key to improving system performance.

[0003] In the prior art, the switching mechanism in a multi-cell environment makes switching decisions based on a fixed threshold, which is prone to frequent switching when the cell coverage overlaps or the signal quality is unstable, resulting in a ping-pong phenomenon, that is, the device frequently switches between two cells, affecting the continuity and quality of terminal communication. By implementing a personalized switching strategy, the switching timing can be controlled more accurately to avoid frequent switching caused by slight fluctuations in signal quality, thereby effectively suppressing the ping-pong phenomenon. Therefore, how to achieve personalized and stable switching of communication targets in terminal devices in a multi-cell environment, thereby reducing the ping-pong phenomenon of terminal devices in LTE and NR multi-cell environments, is a difficult problem faced by the industry. Summary of the invention

[0004] The present application provides a method for reducing the ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP, which can realize personalized and stable switching of communication targets in a terminal device in a multi-cell environment, thereby reducing the ping-pong phenomenon of the terminal device in the multi-cell environment of LTE and NR.

[0005] The present application provides a method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP, the method comprising the following steps:

[0006] When the terminal device communicates with the user base station of each cell in the multi-cell environment of LTE and NR, the communication switching information in the terminal device is monitored;

[0007] Extracting a ping-pong suppression area and a communication stability area in a multi-cell environment from the terminal device based on the switching frequency in the communication switching information, determining a communication stability feature of the terminal device according to a network state of each cell user base station in the communication stability area, and then determining a switching suppression amount of each cell user base station in the cell environment through the communication stability feature and the switching suppression in the ping-pong suppression area;

[0008] Determine the switching stability of the communication switching in the terminal device according to all the switching inhibition amounts and the current retention time of the terminal device, and determine the switching threshold difference of the user base stations in each cell according to the switching stability and the signal quality of the user base stations in each cell;

[0009] When the terminal equipment communicates in a multi-cell environment, each switching threshold difference is used to perform real-time communication switching on user base stations in each cell in the multi-cell environment.

[0010] In this embodiment, extracting the ping-pong suppression area and the communication stability area in the multi-cell environment from the terminal device based on the switching frequency in the communication switching information specifically includes:

[0011] Obtain the ping-pong suppression threshold of the terminal device in a multi-cell environment;

[0012] Determine the communication frequency of each cell user base station in a multi-cell environment by using the switching frequency in the communication switching information;

[0013] All cell user base stations are divided into a ping-pong suppression area and a communication stability area in a multi-cell environment according to the ping-pong suppression threshold and each communication frequency.

[0014] In this embodiment, determining the communication stability feature of the terminal device according to the network status of each cell user base station in the communication stability area specifically includes:

[0015] Extracting state sub-features of the network state in user base stations of each cell in the communication stable area;

[0016] The communication stability characteristics of the terminal device are determined based on all the status sub-characteristics.

[0017] In this embodiment, determining the handover inhibition amount of each cell user base station in the cell environment by using the communication stability feature and the handover inhibition in the ping-pong inhibition area specifically includes:

[0018] For each cell user base station in the cell environment, obtaining a state sub-feature of the cell user base station from the communication stability feature;

[0019] Determine a suppression threshold of a cell user base station according to the handover suppression in the ping-pong suppression area;

[0020] The switching inhibition amount of the cell user base station is determined by the inhibition threshold and the state sub-characteristic, and then the switching inhibition amount of each cell user base station in the cell environment is obtained.

[0021] In this embodiment, determining the switching stability of the communication switching in the terminal device according to all the switching inhibition amounts and the current retention time of the terminal device specifically includes:

[0022] Determine the stable value of the terminal device in the current switching according to all the switching inhibition quantities;

[0023] Determine a stability compensation factor for communication switching in the terminal device according to the current retention time of the terminal device;

[0024] The switching stability of the communication switching in the terminal device is determined according to the stability value and the stability compensation factor.

[0025] In this embodiment, determining the handover threshold difference of each cell user base station according to the handover stability and the signal quality of each cell user base station specifically includes:

[0026] For each cell user base station, a threshold difference for switching to the cell user base station is determined according to the signal quality of the cell user base station;

[0027] The threshold difference is stably compensated by the switching stability to obtain the switching threshold difference of each cell user base station, and then the switching threshold difference of each cell user base station is obtained.

[0028] In this embodiment, using each switching threshold difference to perform real-time communication switching on user base stations in each cell in a multi-cell environment specifically includes:

[0029] For each cell user base station, monitor the real-time signal quality of the cell user base station and the current signal quality of the cell user base station currently communicating in the terminal device;

[0030] Determine the communication switching value of the cell user base station by the real-time signal quality, the current signal quality and the switching threshold difference of the cell user base station, and then obtain the communication switching value of each cell user base station;

[0031] The cell user base station corresponding to the maximum value among all communication switching values ​​is used as the communication switching target of the terminal equipment.

[0032] In this embodiment, the RSRP is the power of a reference signal received by a receiving terminal from a base station.

[0033] In this embodiment, the LTE is a long term evolution network technology based on the 4G wireless communication standard.

[0034] In this embodiment, the NR is a wireless access technology based on the 5G wireless communication standard.

[0035] The technical solution provided by the embodiments disclosed in this application has the following beneficial effects:

[0036] When a terminal device communicates with user base stations in each cell in a multi-cell environment of LTE and NR, the communication switching information in the terminal device is monitored; based on the switching frequency in the communication switching information, the ping-pong suppression area and the communication stability area in the multi-cell environment are extracted from the terminal device, and the communication stability characteristics of the terminal device are determined according to the network status of each user base station in the communication stability area, and then the switching suppression amount of each user base station in the cell environment is determined through the communication stability characteristics and the switching suppression in the ping-pong suppression area; the switching stability of the communication switching in the terminal device is determined according to all the switching suppression amounts and the current residence time of the terminal device, and the switching threshold difference of each user base station in the cell is determined through the switching stability and the signal quality of each user base station in the cell; when the terminal device communicates in the multi-cell environment, each switching threshold difference is used to perform real-time communication switching on each user base station in the multi-cell environment.

[0037] It can be seen that in this application, when the terminal device communicates in a multi-cell environment, each switching threshold difference can be used to perform real-time communication switching of user base stations in each cell in the multi-cell environment; first, the process of determining the switching suppression amount in a multi-cell environment, especially in LTE and NR networks, can effectively reduce unnecessary switching behaviors. By combining the switching suppression in the ping-pong suppression area and the communication stability characteristics of the terminal device, the switching suppression amount can reflect the necessity and degree of switching in the current network state. By adjusting and controlling the switching suppression amount, it is helpful to balance the network load and reduce the interference caused by frequent switching, thereby reducing the ping-pong phenomenon of terminal devices in LTE and NR multi-cell environments; then, the switching threshold difference reflects the signal quality difference considered by the terminal device when switching, and affects the timing of the switching decision. By adjusting the threshold difference, the frequent switching phenomenon caused by signal quality fluctuations can be effectively avoided. At the same time, based on the switching stability, the switching threshold difference can dynamically adjust the switching conditions so that the terminal device can switch at the optimal time, thereby improving the stability of the network, reducing communication interruptions caused by improper switching, and further improving the communication quality and stability of the terminal device in a multi-cell environment.

[0038] To sum up, the technical solution adopted in this application can realize personalized and stable switching of communication targets in terminal devices in a multi-cell environment, thereby reducing the ping-pong phenomenon of terminal devices in LTE and NR multi-cell environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0040] Figure 1It is a flowchart of a method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP provided by the present application;

[0041] Figure 2 is an exemplary flow chart for determining switching stability provided by the present application. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0043] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. Figure 1 As shown in the figure, this figure is an exemplary flow chart of a method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP according to this embodiment of the present application, and the method includes the following steps:

[0044] In step S1, when the terminal device communicates with user base stations in each cell in a multi-cell environment of LTE and NR, communication switching information in the terminal device is monitored.

[0045] It should be noted that, in the present application, the RSRP is the power of the reference signal received by the receiving terminal from the base station; the LTE is a long-term evolution network technology based on the 4G wireless communication standard; and the NR is a wireless access technology based on the 5G wireless communication standard.

[0046] In specific implementation, when the terminal device communicates with the user base station of each cell in a multi-cell environment of LTE and NR, the communication switching record between the terminal device and the user base station of each cell can be obtained in the repository of the terminal device, and the collection of all communication switching records can be used as the communication switching information in the terminal device.

[0047] In step S2, a ping-pong suppression area and a communication stability area in a multi-cell environment are extracted from the terminal device based on the switching frequency in the communication switching information, and the communication stability characteristics of the terminal device are determined according to the network status of the user base stations in each cell in the communication stability area. Then, the switching suppression amount of the user base stations in each cell in the cell environment is determined through the communication stability characteristics and the switching suppression in the ping-pong suppression area.

[0048] In this embodiment, the ping-pong suppression area and the communication stability area in the multi-cell environment are extracted from the terminal device based on the switching frequency in the communication switching information in the following manner, namely:

[0049] Obtain the ping-pong suppression threshold of the terminal device in a multi-cell environment;

[0050] Determine the communication frequency of each cell user base station in a multi-cell environment by using the switching frequency in the communication switching information;

[0051] All cell user base stations are divided into a ping-pong suppression area and a communication stability area in a multi-cell environment according to the ping-pong suppression threshold and each communication frequency.

[0052] It should be noted that, in the present application, the communication stability zone refers to an area where the terminal equipment can maintain stable communication in a multi-cell environment. In the communication stability zone, the signal quality between the terminal equipment and the cell user base station is good, the communication quality is stable, and the switching frequency is low; the ping-pong suppression zone refers to an area set in a multi-cell environment to reduce the ping-pong effect. In the ping-pong suppression zone, the switching frequency of the terminal equipment is high, and there is a risk of repeated switching when the signal quality fluctuates greatly; the ping-pong suppression threshold is a critical value used to determine whether frequent switching needs to be suppressed; the communication frequency is the number of times the terminal equipment initiates a switching operation within a unit time (1s).

[0053] In specific implementation, first, the ping-pong suppression threshold of the terminal device in a multi-cell environment can be obtained in the central console of the terminal device. In order to improve the accuracy of the ping-pong suppression threshold, in actual use, the ping-pong suppression threshold can be modified in time periods based on historical experience; then, for each cell user base station in the multi-cell environment, the time interval (in seconds) and the number of switches for each switch to the cell user base station in the communication switching information are calculated, and the ratio of the sum of all time intervals to the total number of switches can be used as the communication frequency of the cell user base station. The communication frequency of each cell user base station in the multi-cell environment can be obtained in the above manner; finally, the set of cell user base stations corresponding to the communication frequencies greater than the ping-pong suppression threshold is used as the ping-pong suppression zone in the multi-cell environment, and the set of cell user base stations corresponding to the communication frequencies less than or equal to the ping-pong suppression threshold is used as the communication stability zone in the multi-cell environment.

[0054] In this embodiment, the communication stability feature of the terminal device can be determined according to the network status of the user base station of each cell in the communication stability area in the following manner, namely:

[0055] Extracting state sub-features of the network state in user base stations of each cell in the communication stable area;

[0056] The communication stability characteristics of the terminal device are determined based on all the status sub-characteristics.

[0057] It should be noted that in the present application, the communication stability feature refers to the feature of the communication stability of the terminal device in a specific network environment; the status sub-feature refers to the feature of the local network state of the terminal device during the communication process, and the status sub-feature includes the signal strength, throughput, delay, packet loss rate and connection success rate of the terminal.

[0058] In the specific implementation, first, for each cell user base station in the communication stability area, the network status within a specified recent time period (the default is 2 hours) is obtained in the memory of the cell user base station, and then the feature extraction algorithm (for example: principal component analysis algorithm) is used to extract the characteristics of the network status as the state sub-features of the network status in the cell user base station. The state sub-features of the network status in each cell user base station in the communication stability area can be obtained in the above manner. In other embodiments, in order to efficiently extract the state sub-features, the state sub-features can be extracted through regular signaling interaction between the base station and the terminal, using the wireless signal quality report fed back by the terminal device (for example: L3 message), and the real-time performance monitoring data on the base station side; then, the set of all state sub-features can be used as the communication stability feature of the terminal device.

[0059] In this embodiment, the handover inhibition amount of each cell user base station in the cell environment is determined by the communication stability feature and the handover inhibition in the ping-pong inhibition area, which can be specifically determined in the following manner, namely:

[0060] For each cell user base station in the cell environment, obtaining a state sub-feature of the cell user base station from the communication stability feature;

[0061] Determine a suppression threshold of a cell user base station according to the handover suppression in the ping-pong suppression area;

[0062] The switching inhibition amount of the cell user base station is determined by the inhibition threshold and the state sub-characteristic, and then the switching inhibition amount of each cell user base station in the cell environment is obtained.

[0063] It should be noted that in the present application, the switching suppression amount indicates the degree of suppression of switching behavior in the cell user base station; the suppression threshold is the threshold used to determine whether the cell user base station needs to be switched; and the switching suppression indicates the switching performance optimization effect of the cell user base station in the ping-pong suppression area.

[0064] In specific implementation, first, for each cell user base station in the cell environment, the state sub-feature of the cell user base station is obtained from the communication stability feature; then, the switching inhibition in the ping-pong inhibition zone can be obtained from the central control console of each cell user base station in the ping-pong inhibition zone, and then the switching inhibition effect under different network states can be obtained from the switching inhibition, so as to set the inhibition threshold for the cell user base station. For example, if the network state of the cell user base station is excellent (for example, high signal strength, large throughput, and small delay), a higher inhibition threshold can be set to reduce unnecessary switching; if the network state is poor, a lower threshold is set to avoid instability caused by frequent switching; finally, a fuzzy logic model based on a Bayesian network is initialized, the inhibition threshold is used as the fuzzy quantization threshold in the fuzzy logic model, and the state sub-feature is used as the fuzzy quantization feature in the fuzzy logic model. The fuzzy logic model is used to quantify the switching inhibition effect of the cell user base station in the current network state, and the quantization result can be used as the switching inhibition amount of the cell user base station. The switching inhibition amount of each cell user base station in the cell environment can be obtained in the above manner.

[0065] In step S3, the switching stability of the communication switching in the terminal device is determined according to all the switching inhibition amounts and the current retention time of the terminal device, and the switching threshold difference of each cell user base station is determined by the switching stability and the signal quality of each cell user base station.

[0066] Preferably, in this embodiment, reference Figure 2 As shown, the figure is an exemplary flow chart for determining the switching stability in an embodiment of the present application. In this embodiment, the switching stability of the communication switching in the terminal device is determined according to all the switching inhibition amounts and the current retention time of the terminal device, which can be implemented by the following steps:

[0067] First, in step S31, a stable value of the terminal device in the current switching is determined according to all switching inhibition amounts;

[0068] Then, in step S32, a stability compensation factor of communication switching in the terminal device is determined according to the current retention time of the terminal device;

[0069] Finally, in step S33, the switching stability of the communication switching in the terminal device is determined according to the stability value and the stability compensation factor.

[0070] It should be noted that in the present application, switching stability refers to the stability of the network state of the terminal device during the communication switching process; the stability value refers to the quantitative value of the stability of the terminal device in the current switching state; the stability compensation factor refers to the parameter for quantitatively adjusting the switching stability during the communication switching process of the terminal device.

[0071] In specific implementation, first, the standard deviation of all switching suppression amounts can be used as the stable value of the terminal device in the current switching; then, a linear regression model based on a recurrent neural network is initialized, the current residence time of the terminal device is used as the explanatory variable in the linear regression model, and the switching stability of the terminal device is used as the response variable of the linear regression model. The linear regression model is used to quantify the linear relationship between the residence time and the switching stability, and the quantified result can be used as a stable compensation factor for the communication switching in the terminal device; finally, the product of the stable value and the stable compensation factor can be used as the switching stability of the communication switching in the terminal device.

[0072] In this embodiment, the handover threshold difference of each cell user base station is determined by the handover stability and the signal quality of each cell user base station in the following manner, namely:

[0073] For each cell user base station, a threshold difference for switching to the cell user base station is determined according to the signal quality of the cell user base station;

[0074] The threshold difference is stably compensated by the switching stability to obtain the switching threshold difference of each cell user base station, and then the switching threshold difference of each cell user base station is obtained.

[0075] It should be noted that in the present application, the switching threshold difference represents the signal strength difference threshold of the terminal device when deciding whether to perform a cell switch; in specific implementation, first, a mapping rule between the signal quality and the switching threshold difference in the cell user base station is obtained from the central console of the device terminal. Terminals with poor signal quality usually have a lower switching threshold difference, while terminals with better signal quality have a higher threshold difference. For each cell user base station, the signal quality of the cell user base station is obtained from the device terminal, and the signal quality is threshold mapped using the mapping rule. The result of the threshold mapping can be used as the threshold difference for switching to the cell user base station, and the threshold difference represents the strength difference between the current cell signal and the target cell signal during the communication switching process; then, the ratio of the switching stability to the communication frequency of the cell user base station can be used as the compensation coefficient of the switching threshold, so that the product of the threshold difference and the compensation coefficient is used as the switching threshold difference of the cell user base station.

[0076] In step S4, when the terminal device communicates in a multi-cell environment, each switching threshold difference is used to perform real-time communication switching on user base stations in each cell in the multi-cell environment.

[0077] In this embodiment, the following method can be used to perform real-time communication switching of user base stations in each cell in a multi-cell environment using each switching threshold difference, namely:

[0078] For each cell user base station, monitor the real-time signal quality of the cell user base station and the current signal quality of the cell user base station currently communicating in the terminal device;

[0079] Determine the communication switching value of the cell user base station by the real-time signal quality, the current signal quality and the switching threshold difference of the cell user base station, and then obtain the communication switching value of each cell user base station;

[0080] The cell user base station corresponding to the maximum value among all communication switching values ​​is used as the communication switching target of the terminal equipment.

[0081] It should be noted that, in the present application, the communication switching value represents the critical signal level of the terminal device that triggers switching during the communication process; the communication switching target represents the target base station of the terminal device during the switching process.

[0082] In the specific implementation, first, for each cell user base station, the real-time signal quality of the cell user base station and the current signal quality of the cell user base station currently communicating in the terminal device are monitored; then, the difference between the real-time signal quality and the current signal quality can be used as the signal difference. If the signal difference is a negative number, the cell user base station will not be used as a communication switching target. If the signal difference is a positive number, the difference between the signal difference and the switching threshold difference is calculated as the communication switching value of the cell user base station. The communication switching value of each cell user base station can be obtained in the above manner; finally, the cell user base station corresponding to the maximum value of all communication switching values ​​is used as the communication switching target of the terminal device. If there are multiple maximum values, the cell user base station with the longest switching interval of the maximum value of all communication switching values ​​is used as the communication switching target of the terminal device.

[0083] It can be seen that in this application, when the terminal device communicates in a multi-cell environment, each switching threshold difference can be used to perform real-time communication switching of user base stations in each cell in the multi-cell environment; first, the process of determining the switching suppression amount in a multi-cell environment, especially in LTE and NR networks, can effectively reduce unnecessary switching behaviors. By combining the switching suppression in the ping-pong suppression area and the communication stability characteristics of the terminal device, the switching suppression amount can reflect the necessity and degree of switching in the current network state. By adjusting and controlling the switching suppression amount, it is helpful to balance the network load and reduce the interference caused by frequent switching, thereby reducing the ping-pong phenomenon of terminal devices in LTE and NR multi-cell environments; then, the switching threshold difference reflects the signal quality difference considered by the terminal device when switching, and affects the timing of the switching decision. By adjusting the threshold difference, the frequent switching phenomenon caused by signal quality fluctuations can be effectively avoided. At the same time, based on the switching stability, the switching threshold difference can dynamically adjust the switching conditions so that the terminal device can switch at the optimal time, thereby improving the stability of the network, reducing communication interruptions caused by improper switching, and further improving the communication quality and stability of the terminal device in a multi-cell environment.

[0084] To sum up, the technical solution adopted in this application can realize personalized and stable switching of communication targets in terminal devices in a multi-cell environment, thereby reducing the ping-pong phenomenon of terminal devices in LTE and NR multi-cell environments.

[0085] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP, characterized in that: The method comprises the following steps: When the terminal device communicates with the user base station of each cell in the multi-cell environment of LTE and NR, the communication switching information in the terminal device is monitored; Extracting a ping-pong suppression area and a communication stability area in a multi-cell environment from the terminal device based on the switching frequency in the communication switching information, determining a communication stability feature of the terminal device according to a network state of each cell user base station in the communication stability area, and then determining a switching suppression amount of each cell user base station in the cell environment through the communication stability feature and the switching suppression in the ping-pong suppression area; Determine the switching stability of the communication switching in the terminal device according to all the switching inhibition amounts and the current retention time of the terminal device, and determine the switching threshold difference of the user base stations in each cell according to the switching stability and the signal quality of the user base stations in each cell; When the terminal equipment communicates in a multi-cell environment, each switching threshold difference is used to perform real-time communication switching on user base stations in each cell in the multi-cell environment.

2. A method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP as claimed in claim 1, characterized in that: Extracting the ping-pong suppression area and the communication stability area in a multi-cell environment from the terminal device based on the switching frequency in the communication switching information specifically includes: Obtain the ping-pong suppression threshold of the terminal device in a multi-cell environment; Determine the communication frequency of each cell user base station in a multi-cell environment by using the switching frequency in the communication switching information; All cell user base stations are divided into a ping-pong suppression area and a communication stability area in a multi-cell environment according to the ping-pong suppression threshold and each communication frequency.

3. A method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP as claimed in claim 1, characterized in that: Determining the communication stability characteristics of the terminal device according to the network status of the user base station in each cell in the communication stability area specifically includes: Extracting state sub-features of the network state in user base stations of each cell in the communication stable area; The communication stability characteristics of the terminal device are determined based on all the status sub-characteristics.

4. A method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP as claimed in claim 1, characterized in that: Determining the switching inhibition amount of each cell user base station in the cell environment by using the communication stability feature and the switching inhibition in the ping-pong inhibition area specifically includes: For each cell user base station in the cell environment, obtaining a state sub-feature of the cell user base station from the communication stability feature; Determining a suppression threshold of a cell user base station according to the handover suppression in the ping-pong suppression area; The switching inhibition amount of the cell user base station is determined by the inhibition threshold and the state sub-characteristic, and then the switching inhibition amount of each cell user base station in the cell environment is obtained.

5. The method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP as claimed in claim 1, characterized in that: Determining the switching stability of the communication switching in the terminal device according to all the switching inhibition amounts and the current retention time of the terminal device specifically includes: Determine the stable value of the terminal device in the current switching according to all the switching inhibition quantities; Determine a stability compensation factor of communication switching in the terminal device according to the current retention time of the terminal device; The switching stability of the communication switching in the terminal device is determined according to the stability value and the stability compensation factor.

6. A method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP as claimed in claim 1, characterized in that: Determining the handover threshold difference of each cell user base station according to the handover stability and the signal quality of each cell user base station specifically includes: For each cell user base station, a threshold difference for switching to the cell user base station is determined according to the signal quality of the cell user base station; The threshold difference is stably compensated by the switching stability to obtain the switching threshold difference of each cell user base station, and then the switching threshold difference of each cell user base station is obtained.

7. A method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP as claimed in claim 1, characterized in that: Using each switching threshold difference to perform real-time communication switching of user base stations in each cell in a multi-cell environment specifically includes: For each cell user base station, monitor the real-time signal quality of the cell user base station and the current signal quality of the cell user base station currently communicating in the terminal device; Determine the communication switching value of the cell user base station by the real-time signal quality, the current signal quality and the switching threshold difference of the cell user base station, and then obtain the communication switching value of each cell user base station; The cell user base station corresponding to the maximum value among all communication switching values ​​is used as the communication switching target of the terminal equipment.

8. The method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP as claimed in claim 1, characterized in that: The RSRP is the power of a reference signal received by a receiving terminal from a base station.

9. The method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP as claimed in claim 1, characterized in that: The LTE is a long-term evolution network technology based on the 4G wireless communication standard.

10. The method for reducing ping-pong phenomenon in a multi-cell environment of LTE and NR based on RSRP as claimed in claim 1, characterized in that: The NR is a wireless access technology based on the 5G wireless communication standard.

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