Cell switching method, device, equipment, storage medium and product

Abstract

The present application relates to the field of communication technology, and discloses a cell switching method, device, equipment, storage medium and product. The method comprises: obtaining field strength information, interference information and load information of multiple neighboring cells, selecting a target cell from the multiple neighboring cells according to the field strength information, interference information and load information, and switching the communication connection from the current cell to the target cell; because when selecting the switching target cell, the present application not only evaluates the field strength information, but also evaluates the interference information and load information in the existing network to select the optimal target cell, thereby avoiding switching to a high-interference or high-load cell, thereby improving the switching success rate and enhancing user perception.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a cell switching method, apparatus, device, storage medium and computer program product. Background Art

[0002] Cell handover is currently one of the most important steps in the mobility management of user equipment (UE). Its purpose is to ensure that the UE can move from one cell to another without interrupting the service.

[0003] The existing cell switching method selects the target cell only from a single dimension, which leads to unreasonable target cell selection, and then there is a defect of switching failure, which affects user perception. Summary of the invention

[0004] The main purpose of the present application is to provide a cell switching method, apparatus, device, storage medium and computer program product, aiming to solve the technical problem that the existing cell switching method selects the target cell only from a single dimension, resulting in unreasonable target cell selection, and then there is a switching failure, which affects the user's perception.

[0005] To achieve the above object, the present application provides a cell switching method, the cell switching method comprising:

[0006] Obtain field strength information, interference information, and load information of multiple neighboring cells;

[0007] Selecting a target cell from the multiple neighboring cells according to the field strength information, the interference information, and the load information;

[0008] The communication connection is switched from the current cell to the target cell.

[0009] Optionally, the field strength information includes a reference signal received power, the interference information includes a received signal strength indication, the load information includes an uplink PRB average utilization rate and a downlink PRB average utilization rate, and selecting a target cell from the multiple neighboring cells according to the field strength information, the interference information, and the load information includes:

[0010] Calculate the score of each neighboring cell by a neighboring cell scoring algorithm according to the reference signal received power, the received signal strength indicator, the uplink PRB average utilization rate and the downlink PRB average utilization rate;

[0011] The neighboring cells are sorted according to the scoring values, and a target cell is selected from the multiple neighboring cells according to the sorting result.

[0012] Optionally, the reference signal received power includes a current reference signal received power, a maximum reference signal received power, and a minimum reference signal received power, the received signal strength indication includes a current received signal strength indication, a maximum received signal strength indication, and a minimum received signal strength indication, and the calculating the score of each neighboring area by a neighboring area scoring algorithm according to the reference signal received power, the received signal strength indication, the uplink PRB average utilization rate, and the downlink PRB average utilization rate includes:

[0013] Calculate a reference signal received power score by using a reference signal received power scoring algorithm according to the current reference signal received power, the maximum reference signal received power, and the minimum reference signal received power;

[0014] Calculate a received signal strength indication score by using a received signal strength indication scoring algorithm according to the current received signal strength indication, the maximum received signal strength indication, and the minimum received signal strength indication;

[0015] The score of each neighboring cell is calculated by a neighboring cell scoring algorithm according to the reference signal received power score, the received signal strength indication score, the uplink PRB average utilization rate and the downlink PRB average utilization rate.

[0016] Optionally, the calculating the score of each neighboring cell by a neighboring cell scoring algorithm according to the reference signal received power score, the received signal strength indication score, the uplink PRB average utilization rate, and the downlink PRB average utilization rate includes:

[0017] Identify the current communication scenario;

[0018] According to the current communication scenario, a first weight corresponding to the reference signal received power score, a second weight corresponding to the received signal strength indication score, a third weight corresponding to the downlink PRB average utilization rate, and a fourth weight corresponding to the uplink PRB average utilization rate are set;

[0019] The score of each neighboring cell is calculated by a neighboring cell scoring algorithm according to the reference signal received power score, the first weight, the received signal strength indication score, the second weight, the downlink PRB average utilization, the third weight, the uplink PRB average utilization and the fourth weight.

[0020] Optionally, the setting, according to the current communication scenario, a first weight corresponding to the reference signal received power score, a second weight corresponding to the received signal strength indication score, a third weight corresponding to the downlink PRB average utilization, and a fourth weight corresponding to the uplink PRB average utilization includes:

[0021] Setting a weight matching condition, wherein the weight matching condition includes taking at least one of a wireless network signal, a degree of signal interference, and a network load as a matching factor;

[0022] According to the current communication scenario and based on the weight matching condition, a first weight corresponding to the reference signal received power score, a second weight corresponding to the received signal strength indication score, a third weight corresponding to the downlink PRB average utilization, and a fourth weight corresponding to the uplink PRB average utilization are set.

[0023] Optionally, identifying the current communication scenario includes:

[0024] Determine whether the maximum value of the reference signal received power is greater than a preset first threshold, and obtain a first determination result;

[0025] Determine whether the received signal strength indication maximum value is less than a preset second threshold value to obtain a second determination result;

[0026] Determine whether the maximum value of the downlink PRB average utilization is greater than a preset third threshold, and obtain a third determination result;

[0027] Determine whether the maximum value of the uplink PRB average utilization rate is greater than a preset fourth threshold, and obtain a fourth determination result;

[0028] A current communication scenario is identified according to the first judgment result, the second judgment result, the third judgment result, and the fourth judgment result.

[0029] In addition, to achieve the above-mentioned purpose, the present application also proposes a cell switching device, the cell switching device comprising:

[0030] An information acquisition module is used to obtain field strength information, interference information and load information of multiple neighboring cells;

[0031] A cell selection module, configured to select a target cell from the plurality of neighboring cells according to the field strength information, the interference information and the load information;

[0032] The cell switching module is used to switch the communication connection from the current cell to the target cell.

[0033] In addition, to achieve the above-mentioned purpose, the present application also proposes a cell switching device, which includes a memory, a processor, and a cell switching program stored in the memory and executable on the processor, wherein the cell switching program is configured to implement the cell switching method described above.

[0034] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, on which a cell switching program is stored, and when the cell switching program is executed by a processor, the cell switching method as described above is implemented.

[0035] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a cell switching program, and when the cell switching program is executed by a processor, the cell switching method as described above is implemented.

[0036] One or more technical solutions proposed in this application have at least the following technical effects:

[0037] In the present application, it is disclosed to obtain field strength information, interference information and load information of multiple neighboring cells, select a target cell from multiple neighboring cells according to the field strength information, interference information and load information, and switch the communication connection from the current cell to the target cell; because when selecting the switching target cell, in addition to evaluating the field strength information, the present application also evaluates the interference information and load information in the existing network to select the optimal target cell, thereby avoiding switching to high-interference or high-load cells, thereby improving the switching success rate and enhancing user perception. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0040] Figure 1 A schematic diagram of a flow chart of a first embodiment of a cell switching method of the present application;

[0041] Figure 2 A schematic diagram of a flow chart of a second embodiment of a cell switching method of the present application;

[0042] Figure 3 A schematic diagram of a flow chart of a third embodiment of a cell switching method of the present application;

[0043] Figure 4 This is a flowchart of a fourth embodiment of a cell switching method of the present application;

[0044] Figure 5 This is a schematic diagram of the module structure of a cell switching device according to an embodiment of the present application;

[0045] Figure 6 A schematic diagram of the device structure of the hardware operating environment involved in the cell switching method in the embodiment of the present application.

[0046] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0048] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0049] The main solution of the embodiment of the present application is to obtain field strength information, interference information and load information of multiple neighboring cells, select a target cell from multiple neighboring cells based on the field strength information, interference information and load information, and switch the communication connection from the current cell to the target cell.

[0050] Cell handover is currently one of the most important steps in the mobility management of user equipment (UE). Its purpose is to ensure that the UE can move from one cell to another without interrupting the service.

[0051] The first two steps in the existing handover process are mainly the handover target cell selection process: first, the base station sends measurement control to the terminal, requiring the terminal to measure the object, measurement report type and measurement item; secondly, the terminal reports one or more neighboring cells that have reached the measurement threshold (A2 event threshold) to the base station as required, and the base station sorts them from high to low according to the reference signal receiving power (RSRP), and finally selects the cell with the highest RSRP as the handover target cell to complete the subsequent handover process, as follows:

[0052] 1) Step 1: Measurement Config (measurement control delivery):

[0053] The base station sends measurement control to the terminal, notifying the terminal of the object, type, and measurement items to be measured.

[0054] Measurement object: Synchronization Signal / PBCH Block (SSB) center frequency is 504030;

[0055] Report type: A2 event triggered (RSRP threshold is 100);

[0056] Measurement items: RSRP (on), Reference Signal Received Quality (RSRQ) (on), Signal-to-Interference plus Noise Ratio (SINR) (off).

[0057] 2) Step 2: Measurement report:

[0058] The terminal completes the measurement and sends the neighboring cells that meet the conditions to the base station through a measurement report. The terminal reports the physical cell identifier (PCI), RSRP, and RSRQ value of the current serving cell and the measured neighboring cells as required.

[0059] 3) Steps 3-14: Complete the subsequent switching process:

[0060] The base station sorts the neighboring cells reported by the terminal from high to low according to the RSRP value (the RSRQ measurement item is not currently selected), selects the neighboring cell with the highest RSRP as the target cell, and initiates a handover request to the target base station, and then completes the subsequent handover process;

[0061] In the existing measurement control delivery, there are only three optional measurement items: RSRP, RSRQ, and SINR. In addition, when sorting neighbor cells, the base station side currently selects RSRP from high to low. If the RSRP of the target cell to be switched is very high, but there is interference or high load, abnormal results such as switching failure, disconnection, and dropped calls may occur during the switching process, or the uplink and downlink rates may decrease after the switching is completed, affecting user perception and having a negative impact on user experience.

[0062] In the existing neighbor cell measurement and sorting process, according to 3GPP protocol TS 38.331 section 5.5.5.2, there are only three optional measurement items: RSRP, RSRQ, and SINR, and there are no interference and load measurement items.

[0063] Because 5G base stations may be interfered with by surrounding 4 / 5G base stations when the signal is weak, or there may be high load in areas with dense users, and due to unreasonable selection of switching target cells, users may experience risks such as disconnection, dropped calls, reduced uplink and downlink rates, etc., affecting user perception.

[0064] Therefore, in order to solve the above technical problems, the present application provides a solution. When selecting a switching target cell, in addition to evaluating the field strength information, the present application also evaluates the interference information and load information in the existing network to select the optimal target cell, thereby avoiding switching to high-interference or high-load cells, thereby improving the switching success rate and enhancing user perception.

[0065] It should be noted that the execution subject of this embodiment may be a cell switching device with data processing, network communication and program running functions, such as a base station, or other electronic devices that can achieve the same or similar functions, and this embodiment does not limit this. The following takes the source base station (i.e., Source gNB) as an example to illustrate this embodiment and the following embodiments.

[0066] Based on this, the embodiment of the present application provides a cell switching method, referring to Figure 1 , Figure 1 This is a flowchart of the first embodiment of the cell switching method of the present application.

[0067] In this embodiment, the cell switching method includes:

[0068] Step S10: Obtain field strength information, interference information, and load information of multiple neighboring cells.

[0069] It should be noted that the field strength information includes but is not limited to RSRP, RSRQ, signal coverage range and other information used to measure the coverage of the wireless network; the interference information includes but is not limited to the received signal strength indication (RSSI), SINR and neighbor leakage ratio (NLR, Neighbor Leakage Ratio) and other information used to measure the degree of interference of the wireless network signal; the load information includes but is not limited to the average utilization of uplink PRB (AUUPRB) and the average utilization of downlink PRB (AUDPRB) and other information used to measure the load of the wireless network.

[0070] It should be understood that obtaining the field strength information, interference information and load information of multiple neighboring cells can specifically be adding three measurement items in the measurement control (Measurement Config) message body sent by the base station, namely field strength information, interference information and load information; the reporting of the above three measurement items is also added in the measurement report (Measurement Report) message body, and the terminal reports the neighboring cells that meet the preset conditions to the base station as required, where the preset conditions can be set in advance.

[0071] Step S20: selecting a target cell from the multiple neighboring cells according to the field strength information, the interference information and the load information.

[0072] It can be understood that selecting a target cell from multiple neighboring cells based on field strength information, interference information and load information can be inputting the field strength information, interference information and load information into a preset model to select a target cell from multiple neighboring cells, wherein the preset model can be set in advance, for example, the preset model can be a neural network model for selecting the optimal target cell; of course, in order to improve accuracy, the score of each neighboring cell can also be calculated according to the field strength information, interference information and load information through a neighboring cell scoring algorithm, and each neighboring cell is sorted according to the scoring score, and the target cell is selected from multiple neighboring cells according to the sorting result, wherein the neighboring cell scoring algorithm can be an algorithm for scoring cells from the dimensions of field strength, interference and load, and this embodiment does not limit this.

[0073] Step S30: Switch the communication connection from the current cell to the target cell.

[0074] It should be understood that switching the communication connection from the current cell to the target cell can be to initiate a switching request to the target base station (i.e., Target gNB), and then complete the subsequent switching process. The subsequent switching process is the existing switching process and will not be repeated here.

[0075] When selecting a switching target cell, this embodiment not only evaluates the field strength information, but also evaluates the interference information and load information in the existing network to select the optimal target cell, thereby avoiding switching to a high-interference or high-load cell, thereby improving the switching success rate and enhancing user perception.

[0076] Reference Figure 2 , Figure 2 This is a flow chart of the second embodiment of the cell switching method of the present application, based on the above Figure 1 The first embodiment shown here proposes a second embodiment of the cell switching method of the present application.

[0077] In the second embodiment, the field strength information includes a reference signal received power, the interference information includes a received signal strength indication, the load information includes an uplink PRB average utilization rate and a downlink PRB average utilization rate, and the step S20 includes:

[0078] Step S201: Calculate the score of each neighboring cell through a neighboring cell scoring algorithm according to the reference signal received power, the received signal strength indicator, the uplink PRB average utilization rate and the downlink PRB average utilization rate.

[0079] It should be understood that in order to ensure the accuracy of field strength information, interference information and load information, in this embodiment, the field strength information is specifically limited to include reference signal received power, the interference information includes received signal strength indication, and the load information includes uplink PRB average utilization and downlink PRB average utilization. In addition, in this embodiment, the score of each neighboring cell is calculated based on the above information through a neighboring cell scoring algorithm to select the target cell, thereby further ensuring the selection of the optimal target cell, thereby further improving the success rate of cell switching.

[0080] Step S202: sorting the neighboring cells according to the scoring values, and selecting a target cell from the multiple neighboring cells according to the sorting result.

[0081] For ease of understanding, the following examples are provided, but are not intended to limit the present application. In one example, the following steps are included:

[0082] 1. According to 3GPP protocol TS 38.331 section 5.5.5.2, the base station side adds three new measurement items to the original three measurement items (RSRP, RSRQ, SINR). The measurement items can be turned on or off by the base station side switch. The default state is turned on and sent to the terminal. A total of 6 measurement items are shown in Table 1:

[0083] Table 1

[0084]

[0085] 2. The terminal measures the RSSI, AUUPRB, AUDPRB and RSRP of the surrounding neighboring cells as required, and reports the neighboring cells that meet the event (configured as A2 according to the specification) to the base station. The explanation of event A2 in section 5.5.4.3 of 3GPP protocol TS 38.331 is shown in Table 2:

[0086] Table 2

[0087]

[0088] 3. A new neighbor cell scoring algorithm (NRNECS) is added on the base station side. After the neighbor cells reported by the terminal are calculated through the algorithm, the score of each neighbor cell is obtained, and the scores are arranged in descending order from high to low. The optimal neighbor cell (i.e., the target cell) obtained at this time is obtained by fully considering the evaluation of field strength, interference, and load conditions.

[0089] This embodiment ensures the accuracy of the field strength information, interference information and load information by limiting the field strength information to include the reference signal received power, the interference information to include the received signal strength indication, and the load information to include the uplink PRB average utilization rate and the downlink PRB average utilization rate.

[0090] Reference Figure 3 , Figure 3 This is a flow chart of the third embodiment of the cell switching method of the present application, based on the above Figure 2 The second embodiment shown proposes a third embodiment of the cell switching method of the present application.

[0091] In the third embodiment, the step S201 includes:

[0092] Step S2011: Calculate a reference signal received power score by using a reference signal received power scoring algorithm according to the current reference signal received power, the maximum reference signal received power and the minimum reference signal received power.

[0093] Step S2012: Calculate a received signal strength indication score according to the current received signal strength indication, the maximum received signal strength indication and the minimum received signal strength indication by using a received signal strength indication scoring algorithm.

[0094] Step S2013: Calculate the score of each neighboring cell through a neighboring cell scoring algorithm according to the reference signal received power score, the received signal strength indication score, the uplink PRB average utilization rate and the downlink PRB average utilization rate.

[0095] For ease of understanding, the following examples are given, but are not intended to limit the present application. In one example, the neighbor cell scoring algorithm, the reference signal received power scoring algorithm, and the received signal strength indication scoring algorithm are as follows:

[0096] Neighborhood scoring algorithm (NRNECS algorithm):

[0097] NRNECS=K1*RSRP_SCORE+K2*RSSI_SCORE+K3*(1-AUDPRB)+K4*(1-AUUPRB)

[0098] Reference signal received power scoring algorithm (ie RSRP_SCORE algorithm):

[0099] RSRP_SCORE=(RSRP_cur -RSRP_min) / (RSRP_max-RSRP_min)

[0100] Received signal strength indication scoring algorithm (ie RSSI_SCORE):

[0101] RSSI_SCORE=(RSSI_max- RSSI _cur) / (RSSI_max- RSSI_min)

[0102] The parameters involved in the algorithm are shown in Table 3: There are two ways to set the weights K1 to K4, which can be set manually or automatically according to the current communication scenario. This embodiment does not limit this.

[0103] Table 3

[0104]

[0105] When selecting a switching target cell, this embodiment comprehensively calculates a neighbor cell score from three algorithms: a neighbor cell scoring algorithm, a reference signal received power scoring algorithm, and a received signal strength indication scoring algorithm, and evaluates the optimal neighbor cell from multiple dimensions, thereby further ensuring that the optimal target cell is selected.

[0106] Reference Figure 4 , Figure 4 This is a flowchart of the fourth embodiment of the cell switching method of the present application, based on the above Figure 3 The third embodiment shown provides a fourth embodiment of the cell switching method of the present application.

[0107] In the fourth embodiment, the step S2013 includes:

[0108] Step S20131: Identify the current communication scenario.

[0109] Furthermore, in order to accurately identify the current communication scenario, the step S20131 includes: determining whether the maximum value of the reference signal received power is greater than a preset first threshold value, and obtaining a first judgment result; determining whether the maximum value of the received signal strength indication is less than a preset second threshold value, and obtaining a second judgment result; determining whether the maximum value of the downlink PRB average utilization is greater than a preset third threshold value, and obtaining a third judgment result; determining whether the maximum value of the uplink PRB average utilization is greater than a preset fourth threshold value, and obtaining a fourth judgment result; identifying the current communication scenario based on the first judgment result, the second judgment result, the third judgment result and the fourth judgment result.

[0110] Step S20132: Set the first weight corresponding to the reference signal received power score, the second weight corresponding to the received signal strength indication score, the third weight corresponding to the downlink PRB average utilization, and the fourth weight corresponding to the uplink PRB average utilization according to the current communication scenario.

[0111] Step S20133: Calculate the score of each neighboring cell through a neighboring cell scoring algorithm according to the reference signal received power score, the first weight, the received signal strength indication score, the second weight, the downlink PRB average utilization, the third weight, the uplink PRB average utilization and the fourth weight.

[0112] Furthermore, when the weights are automatically matched, the first factor is the quality of the wireless network signal to ensure that users can communicate in good network coverage; the degree of signal interference is the second factor to ensure smooth communication and quality; the network load is the third factor. Based on the above principles, different weights are matched for different scenarios to achieve the best switching effect and user experience. Step S20133 includes: setting weight matching conditions, the weight matching conditions include at least one of the wireless network signal, the degree of signal interference, and the network load as matching factors; according to the current communication scenario, based on the weight matching conditions, setting the first weight corresponding to the reference signal receiving power score, the second weight corresponding to the received signal strength indication score, the third weight corresponding to the downlink PRB average utilization, and the fourth weight corresponding to the uplink PRB average utilization.

[0113] This embodiment automatically identifies scenarios based on measurement items reported by the terminal, and sets different weights according to different scenarios to reduce manual workload, better automatically adapt to different scenarios, and meet the needs of the network side and the user side to the greatest extent.

[0114] For ease of understanding, the following examples are given, but this application is not limited. As an example, in this application, while fully considering the impact of load and interference in the network, the base station adds uplink interference measurement RSSI (compared to RSRQ and SINR measurements, RSSI can directly reflect the electromagnetic noise floor level), uplink and downlink PRB utilization, and the original RSRP measurement item in the measurement control. The terminal reports the measured related parameters (RSRP, RSSI, uplink and downlink PRB utilization) to the base station. The base station side adds a new neighboring area intelligent scene recognition function. After identifying the current neighboring area scene, a new neighboring area scoring algorithm corresponding to the scene is added. The algorithm gives a score for each neighboring area, sorts the neighboring areas according to the score, and selects the best neighboring area to complete the switch, thereby improving the switching success rate and user satisfaction.

[0115] The overall idea of ​​this application is:

[0116] Step 1: The base station sends three new measurement items in the Measurement Config message body, namely RSSI (received signal strength indication), AUUPRB (uplink PRB average utilization), and AUDPRB (downlink PRB average utilization);

[0117] Step 2: The above three measurement items are also reported in the Measurement Report message body. The terminal reports the neighboring cells that meet the event requirements (currently configured as A2) to the base station as required. The base station adds intelligent identification of neighboring cell scenarios and the corresponding neighboring cell scoring algorithm (NRNECS). The neighboring cell scoring algorithm is used to calculate scores according to different scenarios, and the neighboring cells are sorted from high to low.

[0118] Step 3: The source base station initiates a handover request to the target cell through a handover request message (HandoverRequired). The target cell is the neighboring cell with the highest score, and the entire handover process is finally completed. The details are as follows:

[0119] 1) According to 3GPP protocol TS 38.331 section 5.5.5.2, the base station side adds three new measurement items to the original three measurement items (RSRP, RSRQ, SINR). The measurement items can be turned on or off by the base station side switch. The default state is turned on and sent to the terminal. A total of 6 measurement items are shown in Table 1;

[0120] 2) The terminal measures the RSSI, AUUPRB, AUDPRB and RSRP of the surrounding neighboring cells as required, and reports the neighboring cells that meet the event (configured as A2 according to the specification) to the base station. The explanation of event A2 in section 5.5.4.3 of 3GPP protocol TS 38.331 is shown in Table 2;

[0121] 3) A new neighbor cell scoring algorithm (NRNECS) is added on the base station side. After the neighbor cells reported by the terminal are calculated by the algorithm, the score of each neighbor cell is obtained and the scores are arranged in descending order from high to low. At this time, the optimal neighbor cell (i.e., the target cell) is obtained by fully considering the field strength, interference, and load.

[0122] New algorithm advantages: RSRP and RSSI reported by the terminal are linearly scored according to the numerical range defined by the 3GPP protocol to calculate RSRP_SCORE and RSSI_SCORE. The scores can truly reflect the coverage and interference level of neighboring cells. Combined with the load-related uplink and downlink PRB utilization indicators reported by the terminal, the physical resource usage of all current neighboring cells can be truly reflected.

[0123] Through these four measurement items, the load and interference of the surrounding neighboring cells can be accurately determined. Different weight settings are then given to the relevant measurement items according to different scenarios. Finally, the score of each neighboring cell is obtained through the scoring algorithm.

[0124] The new algorithms are as follows:

[0125] NRNECS=K1*RSRP_SCORE+K2*RSSI_SCORE+K3*(1-AUDPRB) +K4*(1-AUUPRB)

[0126] RSRP_SCORE=(RSRP_cur -RSRP_min) / (RSRP_max-RSRP_min)

[0127] RSSI_SCORE=(RSSI_max- RSSI _cur) / (RSSI_max- RSSI_min)

[0128] The parameters involved in the algorithm are shown in Table 3: There are two ways to set the weights K1 to K4, which can be set manually or automatically according to the current communication scenario. This embodiment does not limit this.

[0129] 4) New neighboring cell intelligent scenario recognition function is added on the base station side: Considering the impact on users' actual service perception and the actual operation of the wireless network, five new scenarios are added, namely: weak coverage scenario, high interference scenario, downlink high load scenario, uplink high load scenario, and other scenarios; the scenarios also support manual modification and customization of other special scenarios.

[0130] The first four of the five newly added scenarios have been defined by current mainstream operators. They were obtained through actual measurement data by the three major operators, China Mobile, China Unicom, and China Telecom, and have practical reference value.

[0131] ① Weak coverage scenario: In all neighboring cell measurement messages (Measurement Report) reported by the terminal, if the maximum value of the measurement item RSRP is lower than -105dbm, it is judged as a weak coverage scenario.

[0132] ② High interference scenario: In all neighboring cell measurement messages (Measurement Report) reported by the terminal, if the maximum value of the uplink RSSI of the measurement item is higher than -107dbm, it is judged as a high interference scenario.

[0133] ③ Downlink high load scenario: In all neighboring cell measurement messages (Measurement Report) reported by the terminal, if the maximum value of the downlink PRB average utilization of the measurement item is higher than 80%, it is judged as a downlink high load scenario.

[0134] ④ Uplink high load scenario: In all neighboring cell measurement messages (Measurement Report) reported by the terminal, if the maximum value of the uplink PRB average utilization of the measurement item is higher than 60%, it is judged as an uplink high load scenario.

[0135] ⑤ Other scenarios: Except for the above four scenarios, all others are classified as other scenarios; when two or more scenario definition principles are met at the same time, they are also classified as other scenarios.

[0136] 5) The base station side adds automatic matching weights based on the scenario:

[0137] The core principle of setting different weights is to improve the user's perceived experience as the primary goal: In wireless communications, coverage, interference and load are the three key factors that affect the user experience. Therefore, for the above five newly added scenarios, different weights are pre-set to provide users with better communication services;

[0138] When automatically matching weights, the first factor is the quality of wireless network signals, ensuring that users can communicate in good network coverage; the second factor is the degree of signal interference, ensuring smooth communication and quality; and the third factor is network load. Based on the above principles, different weights are matched for different scenarios to achieve the best switching effect and user experience.

[0139] For example, in the weak coverage scenario, the weight K1 associated with the RSRP score is set to a decisive proportion of 60% to select the neighboring area with the strongest RSRP, and the remaining K values ​​are set in descending order of importance; other scenarios are similar, and the weight automatic matching values ​​corresponding to specific scenarios are shown in Table 4:

[0140] Table 4

[0141]

[0142] 6) After calculating the scores of all reported neighboring cells, the base station will sort them in descending order according to the scores;

[0143] 7) The base station initiates a handover request to the neighboring cell with the highest score and completes the subsequent handover process.

[0144] For ease of understanding, the following examples are given, but they are not intended to limit this application. In one example, assuming that the base station side turns on the neighboring cell intelligent scene recognition function, and the current terminal reports 4 neighboring cells through a measurement report message (Measurement Report), the relevant measurement item values ​​and neighboring cell sorting results are shown in Table 5:

[0145] Note: According to the principle of automatic scene recognition, the following is identified as other scenes, and neighboring cell 4 is finally selected as the switching target cell.

[0146] Table 5

[0147]

[0148] Existing technical solution: The terminal receives a measurement control message sent by the base station, measures the RSRP of the surrounding cells, and reports the cells that meet the A2 event threshold to the base station. The base station side selects RSRP from high to low and sorts them, and selects the neighboring cell with the strongest RSRP as the switching target cell to initiate a switching request to the target base station, as shown in Table 5: The switching target cell is neighboring cell 1, but the uplink interference (RSSI) of neighboring cell 1 is -90dBm, the highest interference among the four neighboring cells, and the downlink average PRB utilization (AUDPRB) is 70%, which is not the cell with the lowest load, so neighboring cell 1 is not the optimal neighboring cell.

[0149] This application: The terminal receives the measurement control message sent by the base station, measures the RSRP, RSSI, AUDPRB, and AUUPRB of the surrounding cells, and reports the cells that meet the A2 event threshold to the base station. The base station side identifies it as other scenes based on the intelligent scene. The base station side calculates the NRNECS score through the neighboring cell scoring algorithm, sorts them by score, takes the cell with the highest score as the target cell, and initiates a handover request to the target base station. As shown in Table 5, the handover target cell is neighboring cell 4;

[0150] By comparison, it was found that when using this application, in addition to evaluating the field strength (RSRP), the interference (RSSI) and load (average uplink and downlink PRB utilization) in the existing network are evaluated when selecting the target cell for switching, so as to select the optimal target cell, bring better network experience to users, and avoid switching to high-interference or high-load cells.

[0151] To sum up, this application selects neighboring cell 4 as the switching target cell. The interference and the average utilization of uplink and downlink PRBs are significantly better than those of neighboring cell 1. Although the RSRP is 6dbm lower than that of neighboring cell 1, it is still a strong field strength and does not affect the network experience. Obviously, this application is more reasonable.

[0152] For ease of understanding, the following examples are given, but are not intended to limit this application. In another example, assuming that the base station side turns on the neighboring cell intelligent scene recognition function, the current terminal reports 4 neighboring cells through a measurement report message (Measurement Report), and the relevant measurement item values ​​and neighboring cell sorting results are shown in Table 6:

[0153] Note: According to the principle of automatic scene identification, the following is identified as a downlink high-load scene, and neighboring cell 1 is finally selected as the switching target cell.

[0154] Table 6

[0155]

[0156] Existing technical solution: Select the neighboring cell with the strongest RSRP as the switching target cell and initiate a switching request to the target base station, as shown in Table 6: The switching target cell is neighboring cell 3, but the downlink average PRB utilization (AUDPRB) of neighboring cell 3 is 90%, the highest among the four neighboring cells. If the terminal switches to neighboring cell 3, the user's downlink rate will be seriously affected, so neighboring cell 3 is not the optimal neighboring cell.

[0157] This application: The terminal receives the measurement control message sent by the base station, measures the RSRP, RSSI, AUDPRB, and AUUPRB of the surrounding cells, and reports the cells that meet the A2 event threshold to the base station. The base station side identifies it as a downlink high-load scenario based on the intelligent scenario, and determines that neighboring cell 1 has the highest ranking after calculation through the neighboring cell scoring algorithm, and initiates a handover request to neighboring cell 1, as shown in Table 6;

[0158] To sum up, this application selects neighboring cell 1 as the switching target cell, with the lowest downlink load, and the interference and uplink load are significantly better than neighboring cell 3. Although the RSRP is lower than that of neighboring cell 3, it is still a strong field strength and does not affect the network experience; it is obvious that this application is more reasonable.

[0159] Compared with the prior art, the present application has the following advantages. Generally speaking, in the current switching process, the prior art does not include load and interference measurements in the measurement items, and uses the high and low RSRP as the basis for sorting neighboring cells. After the switching is completed, the user experience cannot be guaranteed. In the switching process, the present application adds network interference and load measurement items on the basis of the original measurement items, and comprehensively scores the neighboring cells. The cells with the highest scores are used as the switching target cells, thereby comprehensively considering the field strength, interference, and load conditions of the existing network, selecting a more reasonable switching target cell, and improving the user experience.

[0160] According to the provisions of section 5.5.5.2 of 3GPP protocol TS 38.331, the prior art only has three measurement items, namely RSRP, RSRQ and SINR, in the measurement control delivery. However, the present application adds three measurement items, namely RSSI, AUUPRB and AUDPRB, in the measurement control delivery, thereby increasing the measurement dimension and being able to measure network interference and load.

[0161] In the prior art, only one of the three measurement items can be used as a criterion for neighbor cell sorting, and the evaluation dimension is relatively single. The present application adds three algorithms, NRNECS, RSRP_SCORE, and RSSI_SCORE, to comprehensively calculate the neighbor cell scores. The cell with the highest score is used as the switching target cell, thereby comprehensively considering the field strength, interference, and load conditions of the existing network, giving a comprehensive score, and making the selection of the switching target cell more reasonable.

[0162] As the scale of 5G continues to expand and the number of users continues to increase, the current handover target cell selection process does not take into account the interference and load conditions of the existing network. After the handover is completed, the user experience is likely to decline and the network service quality will deteriorate;

[0163] This application fully considers the interference and load conditions of the existing network, evaluates the cell from multiple dimensions, selects the best neighboring cell as the switching target cell, improves network quality and user satisfaction, and ensures the realization of the above value in the following aspects:

[0164] 1. Add three new measurement items, RSSI, AUUPRB and AUDPRB, in the measurement control to measure network interference and load conditions;

[0165] 2. Added intelligent scene recognition of neighboring cells on the base station side, automatically identified scenes based on the measurement items reported by the terminal, and set different weights (K1, K2, K3, K4) according to different scenes to reduce manual workload, better automatically adapt to different scenes, and maximize the needs of the network side and user side;

[0166] 3. When selecting the target cell for switching, three new algorithms, NRNECS, RSRP_SCORE, and RSSI_SCORE, are added to comprehensively calculate the neighboring cell scores and evaluate the optimal neighboring cell from multiple dimensions.

[0167] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the cell switching method of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0168] This application also provides a cell switching device, please refer to Figure 5 , the cell switching device comprises:

[0169] An information acquisition module 10 is used to acquire field strength information, interference information and load information of multiple neighboring cells;

[0170] A cell selection module 20, configured to select a target cell from the plurality of neighboring cells according to the field strength information, the interference information and the load information;

[0171] The cell switching module 30 is used to switch the communication connection from the current cell to the target cell.

[0172] The cell switching device provided by the present application adopts the cell switching method in the above embodiment, which can solve the technical problem that the existing cell switching method selects the target cell only from a single dimension, thereby causing unreasonable target cell selection, and then there is a switching failure, which affects the user's perception. Compared with the prior art, the beneficial effects of the cell switching device provided by the present application are the same as the beneficial effects of the cell switching method provided by the above embodiment, and the other technical features in the cell switching device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0173] The present application provides a cell switching device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the cell switching method in the above-mentioned embodiment 1.

[0174] Reference below Figure 6 , which shows a schematic diagram of the structure of a cell switching device suitable for implementing an embodiment of the present application. The cell switching device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 6 The cell switching device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0175] like Figure 6As shown, the cell switching device may include a processing device 1001 (such as a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the cell switching device are also stored. The processing device 1001, ROM1002 and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 may allow the cell switching device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a cell switching device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have alternatively.

[0176] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0177] The cell switching device provided by the present application adopts the cell switching method in the above embodiment, which can solve the technical problem that the existing cell switching method selects the target cell only from a single dimension, thereby causing unreasonable target cell selection, and then there is a switching failure, which affects the user's perception. Compared with the prior art, the beneficial effects of the cell switching device provided by the present application are the same as the beneficial effects of the cell switching method provided by the above embodiment, and the other technical features in the cell switching device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0178] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0179] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0180] The present application provides a storage medium having computer-readable program instructions (ie, computer programs) stored thereon, the computer-readable program instructions being used to execute the cell switching method in the above-mentioned embodiment.

[0181] The storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM: RandomAccess Memory), a read-only memory (ROM: Read Only Memory), an erasable programmable read-only memory (EPROM: Erasable Programmable Read Only Memory or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM: CD-Read Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, system or device. The program code contained on the storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency: Radio Frequency), etc., or any suitable combination of the above.

[0182] The above storage medium may be included in the cell switching device; or may exist independently without being assembled into the cell switching device.

[0183] The above-mentioned storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the cell switching device, the cell switching device: obtains field strength information, interference information and load information of multiple neighboring cells; selects a target cell from the multiple neighboring cells based on the field strength information, the interference information and the load information; and switches the communication connection from the current cell to the target cell.

[0184] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0185] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0186] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0187] The storage medium provided in the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned cell switching method, and can solve the technical problem that the existing cell switching method selects the target cell only from a single dimension, thereby causing unreasonable target cell selection, and then there is a switching failure, which affects the user's perception. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the present application are the same as the beneficial effects of the cell switching method provided in the above-mentioned embodiment, and will not be repeated here.

[0188] The present application also provides a computer program product, including a computer program, and when the computer program is executed by a processor, the cell switching method as described above is implemented.

[0189] The computer program product provided by the present application can solve the technical problem that the existing cell switching method selects the target cell only from a single dimension, which leads to unreasonable target cell selection, and then there is a switching failure, which affects the user's perception. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the cell switching method provided by the above embodiment, which will not be repeated here.

[0190] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A cell switching method, characterized in that: The cell switching method comprises: Acquire field strength information, interference information, and load information of multiple neighboring cells, wherein the field strength information includes reference signal received power and reference signal received quality, the interference information includes received signal strength indication and signal-to-noise ratio, and the load information includes uplink PRB average utilization and downlink PRB average utilization; Selecting a target cell from the multiple neighboring cells according to the field strength information, the interference information, and the load information; Switching the communication connection from the current cell to the target cell; The reference signal received power includes a current reference signal received power, a maximum reference signal received power, and a minimum reference signal received power; the received signal strength indication includes a current received signal strength indication, a maximum received signal strength indication, and a minimum received signal strength indication; and selecting a target cell from the multiple neighboring cells according to the field strength information, the interference information, and the load information includes: Calculating a reference signal received power score according to the current reference signal received power, the maximum reference signal received power, and the minimum reference signal received power by using a reference signal received power scoring algorithm, wherein the reference signal received power scoring algorithm is: RSRP_SCORE=(RSRP_cur -RSRP_min) / (RSRP_max-RSRP_min) Where RSRP_SCORE is the reference signal received power score, RSRP_cur is the current reference signal received power, RSRP_min is the minimum reference signal received power, and RSRP_max is the maximum reference signal received power. The received signal strength indication score is calculated according to the current received signal strength indication, the received signal strength indication maximum value and the received signal strength indication minimum value by using a received signal strength indication scoring algorithm, wherein the received signal strength indication scoring algorithm is: RSSI_SCORE=(RSSI_max- RSSI _cur) / (RSSI_max- RSSI_min) Where RSSI_SCORE is the received signal strength indication score, RSSI_max is the maximum received signal strength indication, RSSI_cur is the current received signal strength indication, and RSSI_min is the minimum received signal strength indication; The score of each neighboring cell is calculated by a neighboring cell scoring algorithm according to the reference signal received power score, the received signal strength indication score, the uplink PRB average utilization rate, and the downlink PRB average utilization rate, wherein the neighboring cell scoring algorithm is: NRNECS=K1*RSRP_SCORE+K2*RSSI_SCORE+K3*(1-AUDPRB)+K4*(1-AUUPRB) Wherein, NRNECS is the score of each neighboring cell, K1 is the reference signal received power weight, RSRP_SCORE is the reference signal received power score, K2 is the received signal strength indication weight, RSSI_SCORE is the received signal strength indication score, K3 is the downlink PRB average utilization weight, AUDPRB is the downlink PRB average utilization, K4 is the uplink PRB average utilization, AUUPRB is the uplink PRB average utilization weight; The neighboring cells are sorted according to the scoring values, and a target cell is selected from the multiple neighboring cells according to the sorting result.

2. The cell switching method according to claim 1, characterized in that: The calculating the score of each neighboring cell by a neighboring cell scoring algorithm according to the reference signal received power score, the received signal strength indication score, the uplink PRB average utilization rate, and the downlink PRB average utilization rate includes: Identify the current communication scenario; According to the current communication scenario, a first weight corresponding to the reference signal received power score, a second weight corresponding to the received signal strength indication score, a third weight corresponding to the downlink PRB average utilization rate, and a fourth weight corresponding to the uplink PRB average utilization rate are set; The score of each neighboring cell is calculated by a neighboring cell scoring algorithm according to the reference signal received power score, the first weight, the received signal strength indication score, the second weight, the downlink PRB average utilization, the third weight, the uplink PRB average utilization and the fourth weight.

3. The cell switching method according to claim 2, characterized in that: The setting, according to the current communication scenario, a first weight corresponding to the reference signal received power score, a second weight corresponding to the received signal strength indication score, a third weight corresponding to the downlink PRB average utilization rate, and a fourth weight corresponding to the uplink PRB average utilization rate, includes: Setting a weight matching condition, wherein the weight matching condition includes taking at least one of a wireless network signal, a degree of signal interference, and a network load as a matching factor; According to the current communication scenario and based on the weight matching condition, a first weight corresponding to the reference signal received power score, a second weight corresponding to the received signal strength indication score, a third weight corresponding to the downlink PRB average utilization, and a fourth weight corresponding to the uplink PRB average utilization are set.

4. The cell switching method according to claim 2, characterized in that: The identifying the current communication scenario includes: Determine whether the maximum value of the reference signal received power is greater than a preset first threshold, and obtain a first determination result; Determine whether the received signal strength indication maximum value is less than a preset second threshold value to obtain a second determination result; Determine whether the maximum value of the downlink PRB average utilization is greater than a preset third threshold, and obtain a third determination result; Determine whether the maximum value of the uplink PRB average utilization rate is greater than a preset fourth threshold, and obtain a fourth determination result; A current communication scenario is identified according to the first judgment result, the second judgment result, the third judgment result, and the fourth judgment result.

5. A cell switching device, characterized in that: The cell switching device comprises: An information acquisition module, used to acquire field strength information, interference information and load information of multiple neighboring cells, wherein the field strength information includes reference signal received power and reference signal received quality, the interference information includes received signal strength indication and signal-to-noise ratio, and the load information includes uplink PRB average utilization and downlink PRB average utilization; A cell selection module, configured to select a target cell from the plurality of neighboring cells according to the field strength information, the interference information and the load information; A cell switching module, used to switch the communication connection from the current cell to the target cell; The reference signal received power includes the current reference signal received power, the maximum reference signal received power and the minimum reference signal received power, and the received signal strength indication includes the current received signal strength indication, the maximum received signal strength indication and the minimum received signal strength indication; The cell selection module is further configured to calculate a reference signal received power score according to the current reference signal received power, the maximum reference signal received power, and the minimum reference signal received power through a reference signal received power scoring algorithm, wherein the reference signal received power scoring algorithm is: RSRP_SCORE=(RSRP_cur -RSRP_min) / (RSRP_max-RSRP_min) Where RSRP_SCORE is the reference signal received power score, RSRP_cur is the current reference signal received power, RSRP_min is the minimum reference signal received power, and RSRP_max is the maximum reference signal received power. The cell selection module is further configured to calculate a received signal strength indication score according to the current received signal strength indication, the received signal strength indication maximum value, and the received signal strength indication minimum value through a received signal strength indication scoring algorithm, wherein the received signal strength indication scoring algorithm is: RSSI_SCORE=(RSSI_max- RSSI _cur) / (RSSI_max- RSSI_min) Where RSSI_SCORE is the received signal strength indication score, RSSI_max is the maximum received signal strength indication, RSSI_cur is the current received signal strength indication, and RSSI_min is the minimum received signal strength indication; The cell selection module is further used to calculate the score of each neighboring area through a neighboring area scoring algorithm according to the reference signal received power score, the received signal strength indication score, the uplink PRB average utilization rate, and the downlink PRB average utilization rate, wherein the neighboring area scoring algorithm is: NRNECS=K1*RSRP_SCORE+K2*RSSI_SCORE+K3*(1-AUDPRB)+K4*(1-AUUPRB) Wherein, NRNECS is the score of each neighboring cell, K1 is the reference signal received power weight, RSRP_SCORE is the reference signal received power score, K2 is the received signal strength indication weight, RSSI_SCORE is the received signal strength indication score, K3 is the downlink PRB average utilization weight, AUDPRB is the downlink PRB average utilization, K4 is the uplink PRB average utilization, AUUPRB is the uplink PRB average utilization weight; The cell selection module is further used to sort the neighboring cells according to the scoring values, and select a target cell from the multiple neighboring cells according to the sorting result.

6. A cell switching device, characterized in that: The cell switching device comprises: a memory, a processor, and a cell switching program stored in the memory and executable on the processor, wherein the cell switching program implements the cell switching method according to any one of claims 1 to 4 when executed by the processor.

7. A storage medium, characterized in that: The storage medium stores a cell switching program, and when the cell switching program is executed by the processor, the cell switching method according to any one of claims 1 to 4 is implemented.

8. A computer program product, characterized in that The computer program product comprises a cell switching program, and when the cell switching program is executed by a processor, the cell switching method according to any one of claims 1 to 4 is implemented.

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