5G large-capacity terminal communication switching method and related device

Abstract

This invention discloses a 5G high-capacity terminal communication handover method and related apparatus, relating to the field of terminal communication technology. The method includes: analyzing the terminal's direction of travel to determine the source cell; determining several candidate handover cells and evaluating their handover scores to determine the target handover cell; determining handover preparation information and predicting the handover speed of the terminal entering the target handover cell to determine handover radio resource control measurement reconfiguration information; detecting handover conditions in the target handover cell to control the terminal to access the target handover cell from the source cell, based on the handover preparation information; then, determining handover measurement report information and calculating the terminal's current moving speed; and after the target handover cell interacts with the core network to request a path handover, performing closed-loop optimization of the terminal handover process based on the terminal's text release signaling and the handover measurement report information. This invention greatly improves the timeliness and accuracy of 5G high-capacity high-speed terminal handover.

Description

Technical Field

[0001] This invention relates to the field of terminal communication technology, and in particular to a 5G high-capacity terminal communication switching method and related apparatus. Background Technology

[0002] High-speed mobile communication scenarios with large-capacity 5G terminals have the following characteristics: first, a large number of terminals, frequent handovers, and concentrated handover times; second, high terminal movement speeds, which easily lead to Doppler shift. These two points can easily cause communication interruptions and service quality degradation. Therefore, targeted research on terminal communication handover is needed to address these issues. However, current communication handover schemes do not consider analyzing the direction of travel using the terminal's historical handover sequence, resulting in the inability to pre-determine the cell range along the direction of travel, delayed handover target selection, and high signaling overhead. Furthermore, when selecting candidate handover cells, there is a lack of comprehensive handover score evaluation for each candidate cell, making it difficult to accurately select the most suitable target handover cell under high-speed, high-capacity conditions from multiple candidate cells. Moreover, existing handover schemes report measurement reports to the source cell before performing the handover, while this scheme performs handover preparation for both the source and target cells first and pre-issues speed-based predictive handover measurement configurations. When the terminal meets the conditions, it directly switches to the target cell, thereby effectively improving the handover performance of 5G terminals in high-speed mobile communication scenarios. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides a 5G high-capacity terminal communication handover method and related device, which greatly improves the timeliness and accuracy of 5G high-capacity high-speed terminal handover and significantly improves user satisfaction in communication handover scenarios.

[0004] To address the aforementioned technical problems, this invention provides a 5G high-capacity terminal communication handover method, the method comprising: Based on the handover sequence data table, the travel direction of 5G high-capacity high-speed terminals is analyzed to obtain travel direction information, and the source cell is determined based on the travel direction information. Based on the source cell and direction of travel information, several candidate handover cells are determined. Based on the historical handover success rate and the load and frequency band of each candidate handover cell, a handover score evaluation is performed on each candidate handover cell to obtain the handover score evaluation result. Based on the handover score evaluation result, the target handover cell is determined from all candidate handover cells. Based on several fields, the handover preparation information of the source cell and the target handover cell is determined, the handover speed of 5G high-capacity high-speed terminals entering the target handover cell is predicted, and a predicted handover strategy is determined based on the handover speed. Based on the predicted handover strategy, handover radio resource control measurement reconfiguration information is determined. Based on the handover radio resource control measurement and reconfiguration information, the handover condition detection is performed on the target handover cell to obtain the handover condition detection result, and based on the handover condition detection result and handover preparation information, the 5G high-capacity high-speed terminal is controlled to access the target handover cell from the source cell. After a 5G high-capacity high-speed terminal accesses the target handover cell from the source cell, the handover measurement report information is determined based on the handover radio resource control measurement reconfiguration information, and the current moving speed of the 5G high-capacity high-speed terminal is calculated. The target cell interacts with the core network to request a path handover. After the target cell interacts with the core network to request a path handover, the target cell sends a terminal text release signaling to the source cell and performs closed-loop optimization of the terminal handover process based on the terminal text release signaling and handover measurement report information.

[0005] Optionally, the step of analyzing the travel direction of 5G high-capacity high-speed terminals based on the handover sequence data table to obtain travel direction information includes: The handover sequence information of the high-speed line cell within a preset time period is obtained, and the handover sequence information is processed by direction labeling to obtain the handover sequence information after direction labeling. A switching order data table is constructed based on the switching order information processed by the directional annotation. The historical handover sequence information of 5G high-capacity high-speed terminals can be obtained from the UE History Information field of the XN HANDOVER REQUEST signaling based on the XN interface; Based on the handover sequence data table, the historical handover sequence information is used to analyze the travel direction of 5G high-capacity high-speed terminals to obtain travel direction information.

[0006] Optionally, the handover score evaluation of each candidate handover cell based on historical handover success rate and the load and frequency band of each candidate handover cell, to obtain the handover score evaluation result, includes: Obtain the historical handover success rate for each candidate handover cell; Obtain the latitude and longitude parameters of the source cell and each candidate handover cell, and calculate the distance between the source cell and each candidate handover cell based on the latitude and longitude parameters; Based on the XN interface, query the load and frequency band of each candidate handover cell, and determine the weights of historical handover success rate, distance, load, and frequency band; Based on historical handover success rate, distance, load, frequency band, and weight, a handover score evaluation is performed on each candidate handover cell to obtain the handover score evaluation result.

[0007] Optionally, the handover preparation information for determining the source cell and target handover cell based on several fields includes: The moving speed of a 5G high-capacity high-speed terminal when switching to the source cell is calculated based on the Doppler frequency shift method, and the moving speed field is determined based on the moving speed. Obtain the average handover duration of all 5G high-capacity high-speed terminals in the source cell and the optimal target handover cell within a preset past time period, and determine the predicted handover failure timer field based on the average handover duration; The predicted handover indication field and the latitude and longitude field of the 5G high-capacity high-speed terminal when handing over to the source cell are obtained, and a target handover request signaling is generated based on the moving speed field, the predicted handover failure timer field, the predicted handover indication field and the latitude and longitude field of the 5G high-capacity high-speed terminal when handing over to the source cell. Based on the target handover request signaling, the handover preparation information of the source cell and the target handover cell is determined.

[0008] Optionally, the step of predicting the handover speed of a 5G high-capacity, high-speed terminal entering the target handover cell, determining a predicted handover strategy based on the handover speed, and determining handover radio resource control measurement reconfiguration information based on the predicted handover strategy includes: Get the first moving speed of the 5G high-capacity high-speed terminal entering the source cell and the second moving speed of the 5G high-capacity high-speed terminal entering the past cell, get the first distance between the source cell and the past cell and the second distance between the source cell and the target handover cell; Based on the first moving speed, the second moving speed, the first distance, and the second distance, the handover speed of a 5G high-capacity high-speed terminal when it enters the target cell is predicted. Based on the handover speed matching correction amount, and based on the handover speed and correction amount, a predicted handover strategy is determined; Set up predictive handover information, predictive handover failure timer, and minimized drive test MDT measurement configuration information, and determine handover radio resource control measurement reconfiguration information based on the predicted handover strategy, predicted handover information, predicted handover failure timer, and MDT measurement configuration information.

[0009] Optionally, the step of performing handover condition detection on the target handover cell based on the handover radio resource control measurement and reconfiguration information to obtain the handover condition detection result includes: Based on the handover radio resource control measurement and reconfiguration information, predictive handover strategies and predictive handover information are extracted; Based on the predicted handover strategy and predicted handover information, handover conditions are detected for the target handover cell to obtain handover condition detection results.

[0010] Optionally, determining the handover measurement report information based on the handover radio resource control measurement reconfiguration information and calculating the current mobile speed of the 5G high-capacity high-speed terminal includes: Based on the handover radio resource control measurement reconfiguration information, predictive handover strategies and predictive handover information are extracted, and handover measurement report information is determined based on the predictive handover strategies and predictive handover information. The current moving speed of a 5G high-capacity high-speed terminal is calculated based on the signal strength change rate method.

[0011] In addition, the present invention also provides a 5G high-capacity terminal communication switching device, the device comprising: Source cell determination module: used to analyze the travel direction of 5G high-capacity high-speed terminals based on the handover sequence data table, obtain travel direction information, and determine the source cell based on the travel direction information; Target cell determination module: used to determine several candidate handover cells based on the source cell and travel direction information, evaluate the handover score of each candidate handover cell based on the historical handover success rate and the load and frequency band of each candidate handover cell, obtain the handover score evaluation result, and determine the target handover cell from all candidate handover cells based on the handover score evaluation result; Information determination module: used to determine the handover preparation information of the source cell and the target handover cell based on several fields, predict the handover speed when a 5G high-capacity high-speed terminal enters the target handover cell, determine the predicted handover strategy based on the handover speed, and determine the handover radio resource control measurement reconfiguration information based on the predicted handover strategy. Terminal access module: used to perform handover condition detection on the target handover cell based on the handover radio resource control measurement reconfiguration information, obtain the handover condition detection result, and control the 5G high-capacity high-speed terminal to access the target handover cell from the source cell based on the handover condition detection result and handover preparation information; Information analysis module: used to determine handover measurement report information based on the handover radio resource control measurement reconfiguration information after the 5G high-capacity high-speed terminal accesses from the source cell to the target handover cell, and to calculate the current moving speed of the 5G high-capacity high-speed terminal; The handover closed-loop module is used for path handover request interaction between the target handover cell and the core network. After the target handover cell and the core network interact with the path handover request, the target handover cell sends a terminal text release signaling to the source cell and performs closed-loop optimization of the terminal handover process based on the terminal text release signaling and handover measurement report information.

[0012] In addition, the present invention also provides an electronic device, which includes a processor and a memory. The memory is used to store instructions, and the processor is used to call the instructions in the memory to cause the electronic device to execute the above-described 5G high-capacity terminal communication switching method.

[0013] In addition, the present invention also provides a computer-readable storage medium that stores computer instructions, which, when executed on an electronic device, cause the electronic device to perform the above-described 5G high-capacity terminal communication switching method.

[0014] In this embodiment of the invention, the travel direction of the 5G high-capacity high-speed terminal is analyzed based on the handover sequence data table to determine the source cell; several candidate handover cells are determined based on the source cell and travel direction information, and handover scores are evaluated for each candidate handover cell to determine the target handover cell. Handover preparation information for both the source and target handover cells is determined, effectively addressing the issue of delayed handover caused by conventional handover preparation processes. The handover speed of the 5G high-capacity high-speed terminal entering the target handover cell is predicted to determine the handover radio resource control measurement reconfiguration information, effectively adapting to the handover characteristics of 5G high-capacity terminals in high-speed scenarios and minimizing the impact of delayed handover in high-speed scenarios. Handover conditions are detected for the target handover cell based on the handover radio resource control measurement reconfiguration information. Based on the handover condition detection results and handover preparation information, the 5G high-capacity high-speed terminal is controlled to access the target handover cell from the source cell, enabling rapid handover to the target cell. After accessing the target handover cell, handover measurement report information is determined based on the handover radio resource control measurement reconfiguration information, and the current movement speed of the 5G high-capacity high-speed terminal is calculated, providing more reliable data for subsequent closed-loop optimization. The target cell interacts with the core network to request a path handover. After the target cell interacts with the core network to request a path handover, it sends a terminal text release signaling to the source cell. Based on the terminal text release signaling and the handover measurement report information, the terminal handover process is optimized in a closed loop, realizing the closed loop of the entire predictive handover process. This greatly improves the timeliness and accuracy of 5G high-capacity and high-speed terminal handover and significantly improves user satisfaction in this scenario. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a flowchart illustrating the 5G high-capacity terminal communication switching method in an embodiment of the present invention. Figure 2 This is a flowchart illustrating a 5G high-capacity terminal communication switching method in another embodiment of the present invention. Figure 3This is a schematic diagram of the structural composition of the 5G high-capacity terminal communication switching device in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structural composition of the electronic device in an embodiment of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1 Please see Figure 1 , Figure 1 This is a flowchart illustrating a 5G high-capacity terminal communication handover method according to an embodiment of the present invention. The method includes: S11: Analyze the travel direction of the 5G high-capacity high-speed terminal based on the handover sequence data table to obtain travel direction information, and determine the source cell based on the travel direction information; In the specific implementation of this invention, the handover sequence information of high-speed line cells within a preset time period is obtained, and the handover sequence information is processed by direction labeling to obtain the handover sequence information after direction labeling. A handover sequence data table is constructed based on the handover sequence information after direction labeling. The historical handover sequence information of 5G high-capacity high-speed terminals is obtained based on the UE History Information field of the XN HANDOVER REQUEST signaling of the XN interface. Based on the handover sequence data table, the travel direction of the 5G high-capacity high-speed terminals is analyzed using the historical handover sequence information to obtain travel direction information. The source cell is determined based on the travel direction information, providing an accurate source cell and direction reference for subsequent steps, and avoiding invalid handover preparation due to misjudgment of direction.

[0019] S12: Based on the source cell and travel direction information, determine several candidate handover cells, evaluate the handover score of each candidate handover cell based on the historical handover success rate and the load and frequency band of each candidate handover cell, obtain the handover score evaluation result, and determine the target handover cell among all candidate handover cells based on the handover score evaluation result. In the specific implementation of this invention, several candidate handover cells are determined based on the source cell and travel direction information, and the historical handover success rate of each candidate handover cell is obtained; the latitude and longitude parameters of the source cell and each candidate handover cell are obtained, and the distance between the source cell and each candidate handover cell is calculated based on the latitude and longitude parameters; the load and frequency band of each candidate handover cell are queried based on the XN interface, and the weights of historical handover success rate, distance, load, and frequency band are determined; a handover score evaluation is performed on each candidate handover cell based on the historical handover success rate, distance, load, frequency band, and weights to obtain the handover score evaluation result; and the target handover cell is determined from all candidate handover cells based on the handover score evaluation result. The comprehensive scoring mechanism avoids handover failure or service quality degradation due to excellent performance in a single indicator but poor performance in other indicators.

[0020] S13: Determine the handover preparation information of the source cell and the target handover cell based on several fields, predict the handover speed when the 5G high-capacity high-speed terminal enters the target handover cell, determine the predicted handover strategy based on the handover speed, and determine the handover radio resource control measurement reconfiguration information based on the predicted handover strategy. In a specific implementation of this invention, the moving speed of the 5G high-capacity high-speed terminal when switching to the source cell is calculated based on the Doppler frequency shift method, and a moving speed field is determined based on the moving speed; the average handover duration of all 5G high-capacity high-speed terminals in the source cell and the optimal target handover cell within a preset past time period is obtained, and a predicted handover failure timer field is determined based on the average handover duration; a predicted handover indication field and the latitude and longitude fields of the 5G high-capacity high-speed terminal when switching to the source cell are obtained, and a target handover request signaling is generated based on the moving speed field, the predicted handover failure timer field, the predicted handover indication field, and the latitude and longitude fields of the 5G high-capacity high-speed terminal when switching to the source cell; the handover preparation information of the source cell and the target handover cell is determined based on the target handover request signaling, and the 5G high-capacity high-speed terminal switches to the source cell is obtained. The system calculates the first moving speed and the second moving speed of the 5G high-capacity high-speed terminal when it enters the previous cell, obtains the first distance between the source cell and the previous cell, and the second distance between the source cell and the target cell for handover; predicts the handover speed of the 5G high-capacity high-speed terminal when it enters the target cell based on the first moving speed, the second moving speed, the first distance, and the second distance; matches a correction amount based on the handover speed, and determines a predicted handover strategy based on the handover speed and the correction amount; sets predicted handover information, a predicted handover failure timer, and minimized drive test MDT measurement configuration information, and determines handover radio resource control measurement reconfiguration information based on the predicted handover strategy, predicted handover information, predicted handover failure timer, and MDT measurement configuration information, so that the predicted handover process matches the actual mobility characteristics of the terminal and improves the accuracy of the handover triggering timing.

[0021] S14: Based on the handover radio resource control measurement reconfiguration information, perform handover condition detection on the target handover cell, obtain the handover condition detection result, and control the 5G high-capacity high-speed terminal to access the target handover cell from the source cell based on the handover condition detection result and handover preparation information; In the specific implementation of this invention, a predictive handover strategy and predictive handover information are extracted based on the handover radio resource control measurement and reconfiguration information; handover conditions are detected for the target handover cell based on the predictive handover strategy and predictive handover information to obtain handover condition detection results; and 5G high-capacity high-speed terminals are controlled to access the target handover cell from the source cell based on the handover condition detection results and handover preparation information, which can reduce air interface interruption time under high-speed mobility.

[0022] S15: After the 5G high-capacity high-speed terminal accesses the target handover cell from the source cell, the handover measurement report information is determined based on the handover radio resource control measurement reconfiguration information, and the current moving speed of the 5G high-capacity high-speed terminal is calculated. In the specific implementation of this invention, after the 5G high-capacity high-speed terminal accesses the target handover cell from the source cell, the predicted handover strategy and predicted handover information are extracted based on the handover radio resource control measurement reconfiguration information. The handover measurement report information is determined based on the predicted handover strategy and predicted handover information. The current moving speed of the 5G high-capacity high-speed terminal is calculated based on the signal strength change rate method, providing factual basis for subsequent closed-loop optimization.

[0023] S16: The target cell and the core network interact with each other to request a path handover. After the target cell and the core network interact with each other to request a path handover, the target cell sends a terminal text release signaling to the source cell and performs closed-loop optimization of the terminal handover process based on the terminal text release signaling and the handover measurement report information.

[0024] In the specific implementation of this invention, the target handover cell and the core network interact with each other to request a path handover. After the target handover cell and the core network interact with each other to request a path handover, the target handover cell sends a terminal text release signaling to the source cell and performs closed-loop optimization of the terminal handover process based on the terminal text release signaling and the handover measurement report information, which significantly improves the overall handover success rate and resource efficiency of subsequent high-capacity terminals.

[0025] In this embodiment of the invention, the travel direction of the 5G high-capacity high-speed terminal is analyzed based on the handover sequence data table to determine the source cell; several candidate handover cells are determined based on the source cell and travel direction information, and handover scores are evaluated for each candidate handover cell to determine the target handover cell. Handover preparation information for both the source and target handover cells is determined, effectively addressing the issue of delayed handover caused by conventional handover preparation processes. The handover speed of the 5G high-capacity high-speed terminal entering the target handover cell is predicted to determine the handover radio resource control measurement reconfiguration information, effectively adapting to the handover characteristics of 5G high-capacity terminals in high-speed scenarios and minimizing the impact of delayed handover in high-speed scenarios. Handover conditions are detected for the target handover cell based on the handover radio resource control measurement reconfiguration information. Based on the handover condition detection results and handover preparation information, the 5G high-capacity high-speed terminal is controlled to access the target handover cell from the source cell, enabling rapid handover to the target cell. After accessing the target handover cell, handover measurement report information is determined based on the handover radio resource control measurement reconfiguration information, and the current movement speed of the 5G high-capacity high-speed terminal is calculated, providing more reliable data for subsequent closed-loop optimization. The target cell interacts with the core network to request a path handover. After the target cell interacts with the core network to request a path handover, it sends a terminal text release signaling to the source cell. Based on the terminal text release signaling and the handover measurement report information, the terminal handover process is optimized in a closed loop, realizing the closed loop of the entire predictive handover process. This greatly improves the timeliness and accuracy of 5G high-capacity and high-speed terminal handover and significantly improves user satisfaction in this scenario.

[0026] Example 2 Please see Figure 2 , Figure 2 This is a flowchart illustrating a 5G high-capacity terminal communication handover method according to another embodiment of the present invention, the method comprising: S201: Obtain the handover sequence information of the high-speed line cell within a preset time period, and perform directional labeling processing on the handover sequence information to obtain the directional labeling-processed handover sequence information; In the specific implementation of this invention, the handover sequence information of high-speed line cells within a preset time period is obtained, and the handover sequence information is processed by direction labeling to obtain the handover sequence information after direction labeling. In order to facilitate the prediction of target handover cells for 5G high-capacity high-speed terminals, the high-speed cells need to determine in advance whether the 5G high-capacity high-speed terminals are in the forward or reverse direction of travel. In high-speed coverage scenarios, the cells are distributed in a strip shape, and the cell handover sequence is basically fixed. By statistically analyzing the handover sequence information of high-speed line cells within a certain period of time, it is imported into each high-speed cell of the line in advance, and the handover sequence information is labeled as forward or reverse to obtain the handover sequence information after direction labeling.

[0027] S202: Construct a switching order data table based on the switching order information processed by the directional annotation; In the specific implementation of this invention, a handover sequence data table is constructed based on the handover sequence information processed by the directional labels. Specifically, a forward handover sequence data table or a reverse handover sequence table is formed based on the handover sequence information processed by the directional labels. To ensure the accuracy of the handover sequence data table, periodic statistics and updates are required (e.g., weekly). Furthermore, due to high-speed coverage scenarios, dual-layer or even multi-layer networks may be deployed; therefore, both forward and reverse handover sequence data tables may contain multiple tables. For example, forward handover sequence data table 1 could be A cell -> B cell -> C cell -> D cell -> E cell -> F cell, and forward handover sequence data table 2 could be A cell -> X cell -> C cell -> D cell -> L cell -> F cell. The reverse handover sequence data table is similar.

[0028] S203: Obtain historical handover sequence information of 5G high-capacity high-speed terminals from the UE History Information field of the XN HANDOVER REQUEST signaling based on the XN interface; In the specific implementation of this invention, the UEHistory Information field of the XN HANDOVER REQUEST signaling based on the XN interface obtains the historical handover sequence information of 5G high-capacity high-speed terminals. XN HANDOVER REQUEST is a key signaling message actively sent by the source gNB to the target gNB when two gNBs (base stations) in a 5G NR network handover via the Xn interface. It marks the formal start of the handover preparation phase, and its core purpose is to request the target gNB to reserve resources for the specified UE to complete a seamless handover. The UE History Information field is a terminal-specific information element defined in the Radio Resource Control Protocol (RRC) of the fifth-generation mobile communication system. It records the most recently accessed cell identifiers (such as CGI, PCI, frequency information) and the dwell time or start and end times on the source cell and each beam. It generally carries information on 3 to 4 recently accessed historical cells. In handover scenarios, this field can be transmitted to the target gNB via XN HANDOVER REQUEST signaling to query historical handover cells in the target cell, enabling the terminal to quickly adapt to its physical layer and media access control layer configuration after handover to the target cell.

[0029] S204: Based on the handover sequence data table, the historical handover sequence information is used to analyze the travel direction of the 5G high-capacity high-speed terminal to obtain travel direction information, and the source cell is determined based on the travel direction information; In the specific implementation of this invention, the historical handover sequence information is used to analyze the travel direction of the 5G high-capacity high-speed terminal based on the handover sequence data table. This involves matching the historical handover sequence with the forward and reverse handover data tables in the handover sequence data table to determine whether the terminal is traveling in the forward or reverse direction, thus obtaining travel direction information. Based on this travel direction information, the source cell is determined. For example, if the current high-speed cell is cell D, by querying the handover request received from the previous cell, it is found that the historical handover sequence information of the 5G high-capacity high-speed terminal is A->X->C. This handover sequence information matches the forward handover sequence data table 1, therefore, it is determined that the 5G high-capacity high-speed terminal is traveling in the forward direction, and cell D is selected as the source cell.

[0030] S205: Based on the source cell and travel direction information, determine several candidate handover cells, evaluate the handover score of each candidate handover cell based on the historical handover success rate and the load and frequency band of each candidate handover cell, obtain the handover score evaluation result, and determine the target handover cell among all candidate handover cells based on the handover score evaluation result. In the specific implementation of this invention, the step of evaluating the handover score of each candidate handover cell based on the historical handover success rate and the load and frequency band of each candidate handover cell to obtain the handover score evaluation result includes: obtaining the historical handover success rate of each candidate handover cell; obtaining the latitude and longitude parameters of the source cell and each candidate handover cell, and calculating the distance between the source cell and each candidate handover cell based on the latitude and longitude parameters; querying the load and frequency band of each candidate handover cell based on the XN interface, and determining the weights of the historical handover success rate, distance, load, and frequency band; and evaluating the handover score of each candidate handover cell based on the historical handover success rate, distance, load, frequency band, and weights to obtain the handover score evaluation result.

[0031] Specifically, based on the source cell and travel direction information, several candidate handover cells are determined. For example, if the current cell occupied by the 5G high-capacity high-speed terminal is cell D (source cell), and the 5G high-capacity high-speed terminal has been identified as being in the forward travel direction, the candidate target cells are cell E or cell L, respectively, by referring to forward handover sequence data table 1 and forward handover sequence data table 2.

[0032] To obtain the historical handover success rate of each candidate handover cell, you can focus on the recent handover success rate of the candidate target cell, and you can count the handover success rate of the past 1 day or 3 days; if you want to focus on the handover success rate of the candidate target cell in a recent period, you can choose to count the handover success rate of the past 1 week or 2 weeks.

[0033] Obtain the latitude and longitude parameters of the source cell and each candidate handover cell, that is, import the latitude and longitude of the cell through the relevant interface, and calculate the distance between the source cell and each candidate handover cell based on the latitude and longitude parameters.

[0034] The XN interface is used to query the load and frequency band of each candidate handover cell. The XN interface is defined according to the 3rd Generation Partnership Project (3GPP), the standard-setter for 5G technology. This interface allows querying the frequency band and load of candidate handover cells. The weights of historical handover success rate, distance, load, and frequency band are determined; these weights can be configured by technical personnel.

[0035] Based on historical handover success rate, distance, load, frequency band, and weights, a handover score is evaluated for each candidate handover cell to obtain the handover score evaluation result. This result is obtained by weighted summation of historical handover success rate, distance, load, frequency band, and weights for each candidate handover cell. Based on this handover score evaluation result, the target handover cell is determined from all candidate handover cells; that is, the candidate handover cell with the highest handover score is selected as the target handover cell. For example, cell D queries candidate target cell E, and cell D queries candidate target cell L. Distance information is calculated using pre-imported cell latitude and longitude parameters. For example, a high historical handover success rate earns 4 points, otherwise 3 points; low load earns 3 points, otherwise 2 points; close distance earns 2 points, otherwise 1 point; high frequency band earns 1 point, otherwise 0 points. The following example shows that candidate target cell L is currently the best target handover cell.

[0036] S206: Determine the handover preparation information of the source cell and the target handover cell based on several fields, predict the handover speed when a 5G high-capacity high-speed terminal enters the target handover cell, determine the predicted handover strategy based on the handover speed, and determine the handover radio resource control measurement reconfiguration information based on the predicted handover strategy. In a specific implementation of this invention, the step of determining the handover preparation information of the source cell and the target handover cell based on several fields includes: calculating the moving speed of the 5G high-capacity high-speed terminal when handing into the source cell based on the Doppler frequency shift method, and determining a moving speed field based on the moving speed; obtaining the average handover duration of all 5G high-capacity high-speed terminals in the source cell and the optimal target handover cell within a preset past time period, and determining a predicted handover failure timer field based on the average handover duration; obtaining a predicted handover indication field and the latitude and longitude fields of the 5G high-capacity high-speed terminal when handing into the source cell, and generating a target handover request signaling based on the moving speed field, the predicted handover failure timer field, the predicted handover indication field, and the latitude and longitude fields of the 5G high-capacity high-speed terminal when handing into the source cell; and determining the handover preparation information of the source cell and the target handover cell based on the target handover request signaling.

[0037] Specifically, the moving speed of a 5G high-capacity high-speed terminal when switching to a source cell is calculated based on the Doppler frequency shift method. The principle is to measure the frequency offset of the downlink reference signal received by the terminal due to relative motion, and combine it with the known carrier nominal frequency and electromagnetic wave propagation speed to deduce the radial speed of the terminal relative to the base station. If the angle information between the terminal's movement direction and the line connecting the base station is added, the actual moving speed of the terminal can be further obtained. The moving speed field is determined based on the moving speed, that is, the corresponding moving speed field is generated according to the moving speed.

[0038] The system obtains the average handover time of all 5G high-capacity high-speed terminals in the source cell and the optimal target handover cell within a preset historical time period. This preset time period can be configured as needed, such as one day or one week. A predicted handover failure timer field is determined based on the average handover time. Specifically, a predicted handover failure timer is set based on the average handover time, and this timer determines the timer field. If a certain preset time is exceeded, the optimal target handover cell cancels the predicted handover preparation process, releases the relevant 5G high-capacity high-speed terminal instances and transmission resources, and clears the latitude and longitude of the 5G high-capacity high-speed terminal when handing over to the source cell, as well as the 5G high-speed terminal's movement speed at the time of handover.

[0039] The system obtains the predicted handover indication field and the latitude and longitude fields of the 5G high-capacity high-speed terminal when handing over to the source cell. The predicted handover indication field indicates that the handover request belongs to the predicted handover type, which is different from the regular handover request. The latitude and longitude fields of the 5G high-capacity high-speed terminal when handing over to the source cell are the latitude and longitude information reported by the Minimization of Drive-Test (MDT) measurement report when the 5G high-capacity high-speed terminal hands over to the source cell. Based on the mobile speed field, predicted handover failure timer field, predicted handover indication field, and latitude and longitude fields of the 5G high-capacity high-speed terminal when handing over to the source cell, a target handover request signaling is generated. A predicted handover field is added to the existing handover request signaling, for example, at the same level as the targetCellGlobalID field. This new field contains four subfields: predicted handover indication subfield, predicted handover failure timer subfield, latitude and longitude subfield of the 5G high-capacity high-speed terminal when handing over to the source cell, and mobile speed subfield of the 5G high-capacity high-speed terminal when handing over to the source cell, forming the final target handover request signaling.

[0040] Based on the target handover request signaling, the handover preparation information of the source cell and the target handover cell is determined. When the 5G high-capacity high-speed terminal selects the best target cell, the pre-handover preparation process is immediately initiated. The source cell sends a target handover request signaling to the selected best target handover cell. After receiving the handover request signaling, the best target handover cell performs predictive handover admission control, allocates instances and transmission resources to the 5G high-capacity high-speed terminal in advance, saves the predictive handover failure timer, saves the latitude and longitude of the 5G high-capacity high-speed terminal when handing over to the source cell, saves the moving speed of the 5G high-capacity high-speed terminal when handing over to the source cell, and replies with a handover request confirmation, thus determining the handover preparation information of the source cell and the target handover cell.

[0041] Furthermore, the step of predicting the handover speed of a 5G high-capacity high-speed terminal entering the target handover cell, determining a predicted handover strategy based on the handover speed, and determining handover radio resource control measurement reconfiguration information based on the predicted handover strategy includes: acquiring a first moving speed of the 5G high-capacity high-speed terminal entering the source cell and a second moving speed of the 5G high-capacity high-speed terminal entering a past cell; acquiring a first distance between the source cell and the past cell and a second distance between the source cell and the target handover cell; predicting the handover speed of the 5G high-capacity high-speed terminal entering the target handover cell based on the first moving speed, the second moving speed, the first distance, and the second distance; matching a correction amount based on the handover speed, and determining a predicted handover strategy based on the handover speed and the correction amount; setting predicted handover information, a predicted handover failure timer, and minimized drive test MDT measurement configuration information, and determining handover radio resource control measurement reconfiguration information based on the predicted handover strategy, predicted handover information, predicted handover failure timer, and MDT measurement configuration information.

[0042] Specifically, the system obtains the first moving speed of the 5G high-capacity high-speed terminal entering the source cell and the second moving speed of the 5G high-capacity high-speed terminal entering previous cells. It also obtains the first distance between the source cell and previous cells, and the second distance between the source cell and the target handover cell. The moving speed and distance can be obtained by querying relevant parameters. Based on the first moving speed, second moving speed, first distance, and second distance, the handover speed of the 5G high-capacity high-speed terminal entering the target handover cell is predicted. For example, consider cell D.

[0043] : The speed when switching to cell C (previous cell): When a 5G high-capacity high-speed terminal switches to cell C, cell C immediately calculates the current moving speed using the Doppler frequency shift method or the signal strength change rate method, and carries it to cell D through a handover request; The speed at which a 5G high-capacity, high-speed terminal switches into cell D (source cell): When a 5G high-capacity, high-speed terminal switches into cell D, cell D immediately calculates the moving speed at that moment using the Doppler frequency shift method or the signal strength change rate method. Predicted handover speed (target cell), to be calculated; The distance between the location S1 of the cell C handover and the location S2 of the cell D handover is calculated using two latitude and longitude coordinates. The latitude and longitude coordinates of the cell C handover location are obtained by cell C querying the MDT measurement report signaling reported when the 5G high-capacity high-speed terminal hands over to its cell, and then carrying it to cell D through the handover request. The latitude and longitude coordinates of the cell D handover location are obtained by cell D querying the MDT measurement report signaling reported when the 5G high-capacity high-speed terminal hands over to its cell.

[0044] The handover location is calculated as S2h + Sh3, which is the distance between the handover location S2 in cell D and the predicted handover location S3. S2h is the distance between the handover location S2 in cell D and the perpendicular point Sh of cell D on the road. First, S2d is calculated using latitude and longitude, and Sdh is obtained by querying the engineering parameters. Then, S2h is calculated using the Pythagorean theorem. S2d is calculated using the latitude and longitude reported by the 5G high-capacity high-speed terminal MDT when handover to cell D and the latitude and longitude of cell D's engineering parameters. Sdh is obtained by querying the engineering parameters. Sh3 is half the distance between cell D and cell L. The latitude and longitude of cell D and cell L are imported in advance through the engineering parameters and can be obtained by querying. Given the short site spacing and fast handover speed in high-speed scenarios, the ideal handover point is at the center of the two cells. This solution predicts the handover location as half the distance between the two cells. Sd refers to the latitude and longitude information of the source cell, and Sh refers to the perpendicular point of the source cell on the road. Sdh refers to the distance between the source cell and the road vertical point. Since the latitude and longitude information of the source cell is known and the road location is fixed, the Sdh information can be obtained in advance through surveying and imported into the source cell database.

[0045] By using the constant acceleration formula, it can be calculated that Speed, that is, the calculated speed during switching.

[0046] , , in, The speed at which the device switches to cell C. The speed at which the device switches to cell D. For switching speed, The distance between the location S1 for switching to cell C and the location S2 for switching to cell D. The distance between the entry point S2 in cell D and the predicted handover point S3.

[0047] Based on the handover speed matching correction amount, and based on the handover speed and correction amount, a predicted handover strategy is determined. Corrections are made based on the predicted handover speed; for example, if the target cell is A3 handover, the correction is the current A3 handover offset minus the correction amount. If the handover speed is below 100 km / h, the correction amount is 0 dB. If the handover speed is between 100 km / h and 150 km / h, the correction amount is 3 dB. The switching speed is divided by 150 (rounded to one decimal place). If the switching speed is between 150 km / h and 300 km / h, the correction is 6 dB. Handover speed / 300 (rounded to one decimal place). If the handover speed is higher than 300 km / h, the correction is 6 dB; for example, if the target cell is A4, the correction is the current A4 threshold minus the correction. If the handover speed is lower than 100 km / h, the correction is 0 dB. If the handover speed is between 100 km / h and 150 km / h, the correction is 3 dB. Current speed / 150 (rounded to one decimal place). If the speed at the time of switching is between 150 km / h and 300 km / h, the correction is 6 dB. Current speed / 300 (rounded to one decimal place). If the speed at the time of handover is higher than 300 km / h, the correction is 6 dB. The predictive handover strategy is composed of the speed at the time of handover and the correction.

[0048] The system configures predictive handover information, a predictive handover failure timer, and minimized drive test (MDT) measurement configuration information. The main purpose of the predictive handover information is to pre-allocate the access information of the selected target cell to 5G high-capacity, high-speed terminals. This includes Physical Random Access Channel (PRACH) configuration (preamble format, root sequence index), uplink / downlink channel parameters (such as power control and modulation / coding schemes), etc. The predictive handover failure timer has the same duration as the predictive handover failure timer in the handover request. If the optimal target handover cell meets the predictive handover strategy within the timer period, subsequent predictive handover operations are triggered; otherwise, regular handover operations are performed. The MDT measurement configuration information aims to allow 5G high-capacity, high-speed terminals to report their current latitude and longitude information to the optimal target handover cell via an MDT measurement report when accessing the target cell. Minimized drive test supports automatic collection of measurement reports containing location information by the terminal and has been widely implemented in wireless networks. Based on the predicted handover strategy, predicted handover information, predicted handover failure timer, and MDT measurement configuration information, the handover radio resource control measurement reconfiguration information is determined, that is, the handover radio resource control measurement reconfiguration information is composed of the predicted handover strategy, predicted handover information, predicted handover failure timer, and MDT measurement configuration information.

[0049] S207: Based on the handover radio resource control measurement reconfiguration information, perform handover condition detection on the target handover cell, obtain the handover condition detection result, and control the 5G high-capacity high-speed terminal to access the target handover cell from the source cell based on the handover condition detection result and handover preparation information; In a specific implementation of the present invention, the step of performing handover condition detection on the target handover cell based on the handover radio resource control measurement and reconfiguration information to obtain handover condition detection results includes: extracting a predicted handover strategy and predicted handover information based on the handover radio resource control measurement and reconfiguration information; and performing handover condition detection on the target handover cell based on the predicted handover strategy and predicted handover information to obtain handover condition detection results.

[0050] Specifically, based on the handover radio resource control measurement and reconfiguration information, a predicted handover strategy and predicted handover information are extracted. Based on the predicted handover strategy and predicted handover information, handover condition detection is performed on the target handover cell to obtain the handover condition detection result. The 5G high-capacity high-speed terminal reads the predicted handover strategy and predicted handover information from the handover radio resource control measurement and reconfiguration information, performs handover speed correction detection based on the extracted predicted handover measurement, and performs access information configuration detection based on the extracted predicted handover information. If both detections are completed and the handover conditions are met, the handover condition configuration is completed. If one of them does not meet the conditions, it is determined that the configuration is incomplete and can be reconfigured.

[0051] Based on the handover condition detection results and handover preparation information, the 5G high-capacity high-speed terminal is controlled to access the target handover cell from the source cell. When the handover conditions are met, the terminal initiates random access to the target cell according to the handover preparation information and accesses the target handover cell normally.

[0052] S208: After the 5G high-capacity high-speed terminal accesses the target handover cell from the source cell, the handover measurement report information is determined based on the handover radio resource control measurement reconfiguration information, and the current moving speed of the 5G high-capacity high-speed terminal is calculated. In a specific implementation of the present invention, determining the handover measurement report information based on the handover radio resource control measurement reconfiguration information and calculating the current moving speed of the 5G high-capacity high-speed terminal includes: extracting a predicted handover strategy and predicted handover information based on the handover radio resource control measurement reconfiguration information; determining the handover measurement report information based on the predicted handover strategy and predicted handover information; and calculating the current moving speed of the 5G high-capacity high-speed terminal based on the signal strength change rate method.

[0053] Specifically, based on the handover radio resource control measurement and reconfiguration information, a predicted handover strategy and predicted handover information are extracted. A handover measurement report is then constructed based on the predicted handover strategy and predicted handover information. If the 5G high-capacity high-speed terminal determines that the conditions are met, it initiates random access to the target cell according to the predicted handover information, successfully accesses the optimal target cell, and sends a predicted handover measurement report to the optimal target cell. The report includes commonly measured information such as the Physical Cell Identifier (PCI) of the source cell and the target cell, and the Reference Signal Received Power (RSRP). Simultaneously, based on the handover radio resource control measurement and reconfiguration information, MDT measurement configuration information is extracted, and an MDT measurement report is sent to the optimal target cell according to the required format. This report includes the 5G high-capacity high-speed terminal's current latitude and longitude information.

[0054] The current moving speed of a 5G high-capacity, high-speed terminal is calculated using the signal strength change rate method. This involves continuously measuring the received power of the reference signal received by the terminal and calculating its rate of change over time. Then, based on the functional relationship between signal power and distance in the path loss model, this rate of change is converted into the terminal's radial velocity relative to the base station. Finally, combined with the angle between the terminal's direction of movement and the line connecting the base station, the actual moving speed of the terminal is derived from the radial velocity. This current moving speed is needed when initiating the predictive handover preparation process to the next cell after the entire release process is completed. In other words, this current moving speed is required when continuing the source cell determination process, evaluating the optimal target cell process, and initiating the predictive handover preparation process.

[0055] S209: The target cell and the core network exchange path handover request information. After the target cell and the core network exchange path handover request information, the target cell sends a terminal text release signaling to the source cell and performs closed-loop optimization of the terminal handover process based on the terminal text release signaling and the handover measurement report information.

[0056] In the specific implementation of this invention, the target cell and the core network interact with each other to request a path handover. The target cell and the core network complete the path handover request interaction process, reusing the current third-generation partner program protocol standard handover process, that is, the target cell sends a path handover request to the core network, and the core network replies with the best target cell confirmation information to the best target cell.

[0057] After the target cell and the core network exchange path handover request interactions, the target cell sends a terminal text release signaling to the source cell. Based on the terminal text release signaling and handover measurement report information, the closed-loop optimization of the terminal handover process is performed. The target cell then sends a terminal text release signaling to the source cell, adding a predicted handover indication and regular measurement information to the current standard signaling. Upon receiving this signaling, the source cell releases the resources of the 5G high-capacity high-speed terminal in the source cell. The purpose of the newly added predicted handover indication is to inform the source cell that the release is a predicted handover type. The regular measurement information carries the measurement reports that the 5G high-capacity high-speed terminal should have reported to the source cell via the air interface. The source cell will retain these measurement reports to meet the needs of post-handover evaluation and optimization, fault location, and user complaint tracing. The purpose of calculating the 5G high-capacity high-speed terminal's moving speed is to prepare for subsequent handover after the 5G high-capacity high-speed terminal successfully enters the optimal target handover cell. This speed information will be sent to the new optimal target cell through a handover request. The optimal target cell and the core network complete the path handover request interaction process and send a terminal text release signaling to the source cell. The main purpose is to achieve a closed loop in the entire predictive handover process and optimize resource release.

[0058] In this embodiment of the invention, the travel direction of the 5G high-capacity high-speed terminal is analyzed based on the handover sequence data table to determine the source cell; several candidate handover cells are determined based on the source cell and travel direction information, and handover scores are evaluated for each candidate handover cell to determine the target handover cell. Handover preparation information for both the source and target handover cells is determined, effectively addressing the issue of delayed handover caused by conventional handover preparation processes. The handover speed of the 5G high-capacity high-speed terminal entering the target handover cell is predicted to determine the handover radio resource control measurement reconfiguration information, effectively adapting to the handover characteristics of 5G high-capacity terminals in high-speed scenarios and minimizing the impact of delayed handover in high-speed scenarios. Handover conditions are detected for the target handover cell based on the handover radio resource control measurement reconfiguration information. Based on the handover condition detection results and handover preparation information, the 5G high-capacity high-speed terminal is controlled to access the target handover cell from the source cell, enabling rapid handover to the target cell. After accessing the target handover cell, handover measurement report information is determined based on the handover radio resource control measurement reconfiguration information, and the current movement speed of the 5G high-capacity high-speed terminal is calculated, providing more reliable data for subsequent closed-loop optimization. The target cell interacts with the core network to request a path handover. After the target cell interacts with the core network to request a path handover, it sends a terminal text release signaling to the source cell. Based on the terminal text release signaling and the handover measurement report information, the terminal handover process is optimized in a closed loop, realizing the closed loop of the entire predictive handover process. This greatly improves the timeliness and accuracy of 5G high-capacity and high-speed terminal handover and significantly improves user satisfaction in this scenario.

[0059] Example 3 Please see Figure 3 , Figure 3 This is a schematic diagram of the structural composition of a 5G high-capacity terminal communication switching device according to an embodiment of the present invention. The device includes: Source cell determination module 31: is used to analyze the travel direction of 5G high-capacity high-speed terminals based on the handover sequence data table, obtain travel direction information, and determine the source cell based on the travel direction information; Target cell determination module 32: is used to determine several candidate handover cells based on the source cell and travel direction information, evaluate the handover score of each candidate handover cell based on the historical handover success rate and the load and frequency band of each candidate handover cell, obtain the handover score evaluation result, and determine the target handover cell among all candidate handover cells based on the handover score evaluation result; Information determination module 33: used to determine the handover preparation information of the source cell and the target handover cell based on several fields, predict the handover speed when the 5G high-capacity high-speed terminal enters the target handover cell, determine the predicted handover strategy based on the handover speed, and determine the handover radio resource control measurement reconfiguration information based on the predicted handover strategy. Terminal access module 34: is used to perform handover condition detection on the target handover cell based on the handover radio resource control measurement reconfiguration information, obtain the handover condition detection result, and control the 5G high-capacity high-speed terminal to access the target handover cell from the source cell based on the handover condition detection result and handover preparation information; Information analysis module 35: After a 5G high-capacity high-speed terminal accesses from the source cell to the target handover cell, it determines the handover measurement report information based on the handover radio resource control measurement reconfiguration information and calculates the current moving speed of the 5G high-capacity high-speed terminal. The handover closed-loop module 36 is used for path handover request interaction between the target handover cell and the core network. After the target handover cell and the core network interact with the path handover request, the target handover cell sends a terminal text release signaling to the source cell and performs closed-loop optimization of the terminal handover process based on the terminal text release signaling and handover measurement report information.

[0060] In the specific implementation of this invention, the specific implementation of the device item can be referred to the implementation of the method item above, and will not be repeated here.

[0061] In this embodiment of the invention, the travel direction of the 5G high-capacity high-speed terminal is analyzed based on the handover sequence data table to determine the source cell; several candidate handover cells are determined based on the source cell and travel direction information, and handover scores are evaluated for each candidate handover cell to determine the target handover cell. Handover preparation information for both the source and target handover cells is determined, effectively addressing the issue of delayed handover caused by conventional handover preparation processes. The handover speed of the 5G high-capacity high-speed terminal entering the target handover cell is predicted to determine the handover radio resource control measurement reconfiguration information, effectively adapting to the handover characteristics of 5G high-capacity terminals in high-speed scenarios and minimizing the impact of delayed handover in high-speed scenarios. Handover conditions are detected for the target handover cell based on the handover radio resource control measurement reconfiguration information. Based on the handover condition detection results and handover preparation information, the 5G high-capacity high-speed terminal is controlled to access the target handover cell from the source cell, enabling rapid handover to the target cell. After accessing the target handover cell, handover measurement report information is determined based on the handover radio resource control measurement reconfiguration information, and the current movement speed of the 5G high-capacity high-speed terminal is calculated, providing more reliable data for subsequent closed-loop optimization. The target cell interacts with the core network to request a path handover. After the target cell interacts with the core network to request a path handover, it sends a terminal text release signaling to the source cell. Based on the terminal text release signaling and the handover measurement report information, the terminal handover process is optimized in a closed loop, realizing the closed loop of the entire predictive handover process. This greatly improves the timeliness and accuracy of 5G high-capacity and high-speed terminal handover and significantly improves user satisfaction in this scenario.

[0062] This invention provides a computer-readable storage medium storing a computer program. When executed by a processor, this program implements the 5G high-capacity terminal communication handover method of any of the above embodiments. The computer-readable storage medium includes, but is not limited to, any type of disk (including floppy disk, hard disk, optical disk, CD-ROM, and magneto-optical disk), ROM (Read-Only Memory), RAM (Random Access Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic cards, or optical cards. In other words, the storage device includes any medium that stores or transmits information in a readable form by a device (e.g., a computer, a mobile phone), and can be a read-only memory, a disk, or an optical disk, etc.

[0063] Example 4 Please see Figure 4 , Figure 4 This is a schematic diagram of the structural composition of the electronic device in an embodiment of the present invention.

[0064] This invention also provides an electronic device, such as... Figure 4 As shown, the electronic device includes a memory 41, a processor 43, and a computer program 42 stored in the memory 41 and executable on the processor 43. Those skilled in the art will understand that... Figure 4 The illustrated electronic device does not constitute a limitation on all devices and may include more or fewer components than illustrated, or combine certain components. Memory 41 can be used to store computer program 42 and various functional modules. Processor 43 runs the computer program 42 stored in memory 41, thereby performing various functional applications and data processing of the device. Memory can be internal memory or external memory, or both. Internal memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, or random access memory. External memory may include hard disks, floppy disks, ZIP disks, USB flash drives, magnetic tapes, etc. Processor 43 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor, a single-chip microcomputer, or a processor 43, or any conventional processor, etc. The processors and memories disclosed in this invention include, but are not limited to, these types of processors and memories. The processors and memories disclosed in this invention are merely examples and not intended to be limiting.

[0065] As one embodiment, the electronic device includes: one or more processors 43, a memory 41, and one or more computer programs 42, wherein the one or more computer programs 42 are stored in the memory 41 and configured to be executed by the one or more processors 43, and the one or more computer programs 42 are configured to perform the 5G high-capacity terminal communication handover method in any of the above embodiments. For specific implementation details, please refer to the above embodiments, which will not be repeated here.

[0066] In this embodiment of the invention, the travel direction of the 5G high-capacity high-speed terminal is analyzed based on the handover sequence data table to determine the source cell; several candidate handover cells are determined based on the source cell and travel direction information, and handover scores are evaluated for each candidate handover cell to determine the target handover cell. Handover preparation information for both the source and target handover cells is determined, effectively addressing the issue of delayed handover caused by conventional handover preparation processes. The handover speed of the 5G high-capacity high-speed terminal entering the target handover cell is predicted to determine the handover radio resource control measurement reconfiguration information, effectively adapting to the handover characteristics of 5G high-capacity terminals in high-speed scenarios and minimizing the impact of delayed handover in high-speed scenarios. Handover conditions are detected for the target handover cell based on the handover radio resource control measurement reconfiguration information. Based on the handover condition detection results and handover preparation information, the 5G high-capacity high-speed terminal is controlled to access the target handover cell from the source cell, enabling rapid handover to the target cell. After accessing the target handover cell, handover measurement report information is determined based on the handover radio resource control measurement reconfiguration information, and the current movement speed of the 5G high-capacity high-speed terminal is calculated, providing more reliable data for subsequent closed-loop optimization. The target cell interacts with the core network to request a path handover. After the target cell interacts with the core network to request a path handover, it sends a terminal text release signaling to the source cell. Based on the terminal text release signaling and the handover measurement report information, the terminal handover process is optimized in a closed loop, realizing the closed loop of the entire predictive handover process. This greatly improves the timeliness and accuracy of 5G high-capacity and high-speed terminal handover and significantly improves user satisfaction in this scenario.

[0067] Furthermore, the above provides a detailed description of a 5G high-capacity terminal communication switching method and related apparatus provided by the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A 5G high-capacity terminal communication handover method, characterized in that, The method includes: Based on the handover sequence data table, the travel direction of 5G high-capacity high-speed terminals is analyzed to obtain travel direction information, and the source cell is determined based on the travel direction information. Based on the source cell and direction of travel information, several candidate handover cells are determined. Based on the historical handover success rate and the load and frequency band of each candidate handover cell, a handover score evaluation is performed on each candidate handover cell to obtain the handover score evaluation result. Based on the handover score evaluation result, the target handover cell is determined from all candidate handover cells. Based on several fields, the handover preparation information of the source cell and the target handover cell is determined, the handover speed of 5G high-capacity high-speed terminals entering the target handover cell is predicted, and a predicted handover strategy is determined based on the handover speed. Based on the predicted handover strategy, handover radio resource control measurement reconfiguration information is determined. Based on the handover radio resource control measurement and reconfiguration information, the handover condition detection is performed on the target handover cell to obtain the handover condition detection result, and based on the handover condition detection result and handover preparation information, the 5G high-capacity high-speed terminal is controlled to access the target handover cell from the source cell. After a 5G high-capacity high-speed terminal accesses the target handover cell from the source cell, the handover measurement report information is determined based on the handover radio resource control measurement reconfiguration information, and the current moving speed of the 5G high-capacity high-speed terminal is calculated. The target cell interacts with the core network to request a path handover. After the target cell interacts with the core network to request a path handover, the target cell sends a terminal text release signaling to the source cell and performs closed-loop optimization of the terminal handover process based on the terminal text release signaling and handover measurement report information.

2. The 5G high-capacity terminal communication handover method according to claim 1, characterized in that, The method of analyzing the travel direction of 5G high-capacity high-speed terminals based on the handover sequence data table to obtain travel direction information includes: The handover sequence information of the high-speed line cell within a preset time period is obtained, and the handover sequence information is processed by direction labeling to obtain the handover sequence information after direction labeling. A switching order data table is constructed based on the switching order information processed by the directional annotation. The historical handover sequence information of 5G high-capacity high-speed terminals can be obtained from the UE History Information field of the XN HANDOVER REQUEST signaling based on the XN interface; Based on the handover sequence data table, the historical handover sequence information is used to analyze the travel direction of 5G high-capacity high-speed terminals to obtain travel direction information.

3. The 5G high-capacity terminal communication handover method according to claim 1, characterized in that, The handover score evaluation of each candidate handover cell is performed based on historical handover success rate, load, and frequency band, to obtain the handover score evaluation result, including: Obtain the historical handover success rate for each candidate handover cell; Obtain the latitude and longitude parameters of the source cell and each candidate handover cell, and calculate the distance between the source cell and each candidate handover cell based on the latitude and longitude parameters; Based on the XN interface, query the load and frequency band of each candidate handover cell, and determine the weights of historical handover success rate, distance, load, and frequency band; Based on historical handover success rate, distance, load, frequency band, and weight, a handover score evaluation is performed on each candidate handover cell to obtain the handover score evaluation result.

4. The 5G high-capacity terminal communication handover method according to claim 1, characterized in that, The handover preparation information, which determines the source cell and target handover cell based on several fields, includes: The moving speed of a 5G high-capacity high-speed terminal when switching to the source cell is calculated based on the Doppler frequency shift method, and the moving speed field is determined based on the moving speed. Obtain the average handover duration of all 5G high-capacity high-speed terminals in the source cell and the optimal target handover cell within a preset past time period, and determine the predicted handover failure timer field based on the average handover duration; The predicted handover indication field and the latitude and longitude field of the 5G high-capacity high-speed terminal when handing over to the source cell are obtained, and a target handover request signaling is generated based on the moving speed field, the predicted handover failure timer field, the predicted handover indication field and the latitude and longitude field of the 5G high-capacity high-speed terminal when handing over to the source cell. Based on the target handover request signaling, the handover preparation information of the source cell and the target handover cell is determined.

5. The 5G high-capacity terminal communication handover method according to claim 1, characterized in that, The method for predicting the handover speed of 5G high-capacity high-speed terminals entering the target handover cell, determining a predicted handover strategy based on the handover speed, and determining handover radio resource control measurement reconfiguration information based on the predicted handover strategy includes: Get the first moving speed of the 5G high-capacity high-speed terminal entering the source cell and the second moving speed of the 5G high-capacity high-speed terminal entering the past cell, get the first distance between the source cell and the past cell and the second distance between the source cell and the target handover cell; Based on the first moving speed, the second moving speed, the first distance, and the second distance, the handover speed of a 5G high-capacity high-speed terminal when it enters the target cell is predicted. Based on the handover speed matching correction amount, and based on the handover speed and correction amount, a predicted handover strategy is determined; Set up predictive handover information, predictive handover failure timer, and minimized drive test MDT measurement configuration information, and determine handover radio resource control measurement reconfiguration information based on the predicted handover strategy, predicted handover information, predicted handover failure timer, and MDT measurement configuration information.

6. The 5G high-capacity terminal communication handover method according to claim 1, characterized in that, The step of performing handover condition detection on the target handover cell based on the handover radio resource control measurement and reconfiguration information, and obtaining the handover condition detection result, includes: Based on the handover radio resource control measurement and reconfiguration information, predictive handover strategies and predictive handover information are extracted; Based on the predicted handover strategy and predicted handover information, handover conditions are detected for the target handover cell to obtain handover condition detection results.

7. The 5G high-capacity terminal communication handover method according to claim 1, characterized in that, The step of determining the handover measurement report information based on the handover radio resource control measurement reconfiguration information and calculating the current moving speed of the 5G high-capacity high-speed terminal includes: Based on the handover radio resource control measurement reconfiguration information, predictive handover strategies and predictive handover information are extracted, and handover measurement report information is determined based on the predictive handover strategies and predictive handover information. The current moving speed of a 5G high-capacity high-speed terminal is calculated based on the signal strength change rate method.

8. A 5G high-capacity terminal communication switching device, characterized in that, The device includes: Source cell determination module: used to analyze the travel direction of 5G high-capacity high-speed terminals based on the handover sequence data table, obtain travel direction information, and determine the source cell based on the travel direction information; Target cell determination module: used to determine several candidate handover cells based on the source cell and travel direction information, evaluate the handover score of each candidate handover cell based on the historical handover success rate and the load and frequency band of each candidate handover cell, obtain the handover score evaluation result, and determine the target handover cell from all candidate handover cells based on the handover score evaluation result; Information determination module: used to determine the handover preparation information of the source cell and the target handover cell based on several fields, predict the handover speed when a 5G high-capacity high-speed terminal enters the target handover cell, determine the predicted handover strategy based on the handover speed, and determine the handover radio resource control measurement reconfiguration information based on the predicted handover strategy. Terminal access module: used to perform handover condition detection on the target handover cell based on the handover radio resource control measurement reconfiguration information, obtain the handover condition detection result, and control the 5G high-capacity high-speed terminal to access the target handover cell from the source cell based on the handover condition detection result and handover preparation information; Information analysis module: used to determine handover measurement report information based on the handover radio resource control measurement reconfiguration information after the 5G high-capacity high-speed terminal accesses from the source cell to the target handover cell, and to calculate the current moving speed of the 5G high-capacity high-speed terminal; The handover closed-loop module is used for path handover request interaction between the target handover cell and the core network. After the target handover cell and the core network interact with the path handover request, the target handover cell sends a terminal text release signaling to the source cell and performs closed-loop optimization of the terminal handover process based on the terminal text release signaling and handover measurement report information.

9. An electronic device, the electronic device comprising a processor and a memory, characterized in that, The memory is used to store instructions, and the processor is used to call the instructions in the memory to cause the electronic device to execute the 5G high-capacity terminal communication switching method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed on an electronic device, cause the electronic device to perform the 5G high-capacity terminal communication handover method as described in any one of claims 1 to 7.

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