Better cell reselection evaluation method and system, computer equipment and storage medium

Abstract

The invention provides a better cell reselection evaluation method and system, computer equipment and a storage medium, and relates to the technical field of communication, and the method comprises the steps: firstly obtaining the reselection decision data of a current service cell and adjacent cells, carrying out the recognition of each adjacent cell according to the reselection decision data and a high-priority better cell reselection condition, and obtaining a better cell reselection evaluation result. After at least one candidate neighbor cell is obtained, each candidate neighbor cell is further evaluated based on a preset suppression condition, and reselection operation of a better cell is initiated only under the condition that an evaluation result meets a preset judgment condition. By adopting the above scheme, the identified candidate neighbor cells can be further evaluated, so that the situation that frequent reselection among a plurality of pilot frequency neighbor cells is triggered when the network parameter configuration is unreasonable or the set reselection threshold is relatively low, or the service fails due to poor signal quality of the selected neighbor cells is avoided, and the user experience is improved. The standby power consumption is reduced, and the service time delay and the failure rate are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication processing, in particular to a better cell reselection evaluation method and system, computer device and storage medium. BACKGROUND

[0002] LTE Cat1.bis is a communication technology in the field of cellular Internet of Things for low-speed scenarios, based on the improvement of the traditional LTE Cat1 standard, mainly for Internet of Things devices with high requirements for cost, power consumption and network compatibility. As part of the 3GPP R13 standard, its core design goal is to reduce hardware complexity through single antenna (1T1R) architecture while maintaining Cat1 performance, and to reduce module cost.

[0003] According to the description in the 3GPP protocol: when the terminal does not camp on any cell, it needs to perform cell selection to search for a suitable cell to camp on and obtain network services. After the terminal normally camps on a cell, it needs to perform cell reselection evaluation in the idle state (IDLE) to camp on a better cell to obtain network services, and in the connected state (CON), the network controls the terminal to perform business on the optimal cell through handover.

[0004] The existing protocol defines inter-frequency priority, and the actual network parameter configuration has problems such as unreasonable configuration and low set reselection threshold, which easily triggers multiple inter-frequency high-priority reselection or reselection to a weak inter-frequency neighbor cell, thereby increasing IDLE standby power consumption and increasing business latency and failure rate. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a better cell reselection evaluation method and system, computer device and storage medium to overcome the problems of unreasonable network parameter configuration, low set reselection threshold and the like in the prior art, which easily triggers frequent reselection between multiple inter-frequency neighbor cells or reselection to a weak inter-frequency neighbor cell, thereby increasing IDLE standby power consumption and increasing business latency and failure rate.

[0006] In a first aspect, the present application provides a better cell reselection evaluation method, comprising: obtaining reselection decision data of a current serving cell and neighbor cells; the reselection decision data includes detection results and system configuration parameters; identifying each neighbor cell according to the reselection decision data and a high-priority better cell reselection condition; wherein the high-priority better cell reselection condition meets the reselection decision standard defined by the Third Generation Partnership Project; when at least one candidate neighbor cell meeting the high-priority better cell reselection condition is identified, evaluating each candidate neighbor cell based on a preset suppression condition; In a case where the evaluation result meets a preset determination condition, a reselection operation of a better cell is initiated.

[0007] In one of the embodiments, the detection result includes a reselection evaluation value and a residence duration; The evaluation of each of the candidate neighbor cells based on the preset suppression condition includes: In a case where the residence duration of the current serving cell exceeds a stability threshold, it is determined again whether each of the candidate neighbor cells continuously meets the high-priority better cell reselection condition and whether the reselection evaluation value of each of the candidate neighbor cells continuously exceeds the reselection evaluation value of the current serving cell within the evaluation duration. In one of the embodiments, the determination manner in which the evaluation result meets the preset determination condition includes: In a case where, within the evaluation duration, there is a candidate neighbor cell that continuously meets the high-priority better cell reselection condition and whose reselection evaluation value continuously exceeds the reselection evaluation value of the current serving cell, it is considered that the evaluation result meets the preset determination condition.

[0008] In one of the embodiments, the detection result includes historical behavior data, and the historical behavior data includes an identifier, a frequency point and a timestamp of an inter-frequency cell. The evaluation of each of the candidate neighbor cells based on the preset suppression condition further includes: In a case where, for a candidate neighbor cell, a reselection path has repetition or a reselection number exceeds a preset number during historical better cell reselection, the evaluation of the candidate cell is stopped; The identifier and the frequency point are used to determine a cell in which reselection occurs, the reselection path is obtained by counting the cell in which reselection occurs, and the reselection number is obtained based on each of the cell in which reselection occurs and the timestamp.

[0009] In one of the embodiments, the evaluation of each of the candidate neighbor cells based on the preset suppression condition includes: In a case where the terminal is in a high-speed moving state or a medium-speed moving state, it is determined whether the reselection evaluation value of each of the candidate neighbor cells exceeds the reselection evaluation value of the current serving cell.

[0010] In one of the embodiments, the determination manner in which the evaluation result meets the preset determination condition includes: In a case where the reselection evaluation value of one of the candidate neighbor cells exceeds the reselection evaluation value of the current serving cell, it is considered that the evaluation result meets the preset determination condition.

[0011] In one of the embodiments, the detection result includes a reference signal strength and a reference signal quality. The evaluation of each candidate neighboring cell based on the preset suppression condition comprises: determining whether the reference signal strength of each candidate neighboring cell is less than a preset power threshold and whether the reference signal quality of each candidate neighboring cell is less than a preset quality threshold; in a case where the reference signal strength of one candidate neighboring cell is less than the preset power threshold and the reference signal quality is less than the preset quality threshold, determining whether the reselection evaluation value of the candidate neighboring cell is greater than the reselection evaluation value of the current serving cell; the determination mode of the evaluation result satisfying the preset determination condition comprises: if the reselection evaluation value of the candidate neighboring cell is greater than the reselection evaluation value of the current serving cell, it is considered that the evaluation result satisfies the preset determination condition.

[0012] In a second aspect, the application provides a better cell reselection evaluation system, which comprises: an acquisition module configured to acquire reselection decision data of a current serving cell and neighboring cells; the reselection decision data comprises detection results and system configuration parameters; a recognition template configured to recognize each neighboring cell according to the reselection decision data and a high-priority better cell reselection condition, so as to obtain at least one candidate neighboring cell satisfying the high-priority better cell reselection condition; wherein the high-priority better cell reselection condition conforms to a reselection decision criterion defined by the Third Generation Partnership Project (3GPP); an evaluation module configured to evaluate each candidate neighboring cell based on a preset suppression condition; and in a case where the evaluation result satisfies a preset determination condition, initiate a better cell reselection operation.

[0013] In a third aspect, the application further provides a computer device. The computer device comprises a memory and a processor, the memory stores a computer program, and the processor implements the method steps in the first aspect when executing the computer program.

[0014] In a fourth aspect, the application further provides a computer readable storage medium. The computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the method steps in the first aspect.

[0015] The better cell reselection evaluation method, system, computer device and storage medium have at least the following advantages: The application first acquires reselection decision data of a current serving cell and neighbor cells, identifies each neighbor cell according to the reselection decision data and a high-priority better cell reselection condition, obtains at least one candidate neighbor cell, further evaluates each candidate neighbor cell based on a preset suppression condition, and only initiates a better cell reselection operation when the evaluation result meets a preset determination condition. By using the above scheme, the application can further evaluate the identified candidate neighbor cell, avoid triggering frequent reselection between multiple inter-frequency neighbor cells when network parameter configuration is unreasonable or the set reselection threshold is low, or selecting an inter-frequency neighbor cell with poor signal quality to cause service failure, and reduce standby power consumption, service delay and failure rate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A flowchart of a better cell reselection evaluation method in an embodiment; Figure 2 A flowchart of an evaluation step of each candidate neighbor cell in an embodiment; Figure 3 A block diagram of a better cell reselection evaluation system in an embodiment; Figure 4 An internal structure diagram of a computer device in an embodiment. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the application, the application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the application are shown in the drawings. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the application more thorough and comprehensive.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application belongs. The terminology used in the specification of the application herein is only for the purpose of describing specific embodiments of the application and is not intended to limit the application. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0019] In the case of using "include", "have", and "contain" described herein, unless a clear limiting term is used, such as "only", "consisting of", etc., another component can be added. Unless otherwise mentioned, the singular form of the term can include the plural form and cannot be understood as one in number.

[0020] It should be understood that, although the terms "first", "second" and the like can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application.

[0021] In the present application, unless specifically defined and limited otherwise, the terms "connected", "connected", and the like should be understood broadly, for example, can be directly connected, can be indirectly connected through an intermediate medium, can be internal connection of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] Please refer to Figure 1 In one embodiment, a better cell reselection evaluation method is provided, which specifically comprises: Step 102, obtaining reselection decision data of the current serving cell and the neighbor cell; the reselection decision data includes detection results and system configuration parameters.

[0023] Specifically, the reselection decision data is obtained after starting the neighbor cell measurement. The detection results are obtained by the terminal (UE) detecting the current serving cell and the neighbor cell, which mainly include reference signal strength (RSRP), reference signal quality (RSRQ), reception level (Srxlev), reception quality (Squal), reselection evaluation value of the serving cell (Rs), and reselection evaluation value of the neighbor cell (Rn); wherein RSRP represents the linear average power of the downlink reference signal of the serving cell or the neighbor cell measured by the terminal, which directly reflects the signal strength and is used for cell selection, reselection, handover and the like; RSRQ is used to reflect the comprehensive quality of signal strength and interference noise; Srxlev is used to represent whether the downlink signal strength (RSRP) of the current cell meets the minimum access requirement, which is calculated based on RSRP but introduces a network configured offset; Squal represents whether the downlink signal quality (RSRQ) of the current cell meets the residence requirement, which is calculated based on RSRQ but introduces a network configured offset; Rs and Rn are the core parameters of R criterion, Rs is used to represent the reception signal quality or strength value of the current serving cell; Rn is used to represent the reception signal quality or strength value of the neighbor cell. The basic purpose of R criterion is that in the same frequency or equal priority frequency scenario, the terminal selects the cell with better signal to reside by calculating the R value of the serving cell (Rs) and the neighbor cell (Rn); the trigger condition is that when the R value of the neighbor cell continuously exceeds the R value of the serving cell for a certain time (Treselection), the reselection is triggered.

[0024] The system configuration parameters are derived from network broadcast, mainly including priority, neighbor cell reselection threshold (ThreshX_High or ThreshX_Low), serving cell threshold (threshServingLow), and hysteresis value (Qhyst). Among them, the priority is used to determine whether all the different frequency points are set to high priority; the neighbor cell reselection threshold is used to determine whether the threshold for entering / leaving the neighbor cell is set too low, and the threshold set too high may cause the terminal to fail to discover the high priority cell, and the threshold set too low may cause the terminal to frequently attempt to reselect to a weak signal high priority cell; the serving cell threshold is used to determine how low the signal of the current serving cell needs to be before reselection is allowed; and the hysteresis value is used to determine how much difference needs to be exceeded before reselection is allowed, and the smaller the value, the easier it is to trigger.

[0025] Step 104, identifying each neighbor cell according to the reselection decision data and the high priority better cell reselection condition; wherein the high priority better cell reselection condition conforms to the reselection decision standard defined by the third generation partnership project.

[0026] Specifically, the third generation partnership project (3rd Generation Partnership Project, 3GPP) is a core standardization organization in the global mobile communication industry, responsible for formulating complete technical specifications from 2G (GSM), 3G (UMTS), 4G (LTE) to 5G (NR).

[0027] The description of the high priority better cell reselection condition in 3GPP includes: In the case where the network is configured with threshServingLowQ, if the current serving cell satisfies Squal>ThreshX_HighQ, the better cell reselection operation is not started; wherein threshServingLowQ is the minimum received quality threshold of the serving cell, and ThreshX_HighQ is the high priority quality threshold related to the different frequency point. In the case where the network is not configured with threshServingLowQ, if the current serving cell satisfies Srxlev>ThreshX_HighP, the better cell reselection operation is not started; wherein ThreshX_HighP is the high priority level threshold related to the different frequency point.

[0028] Step 106, when at least one candidate neighbor cell satisfying the high priority better cell reselection condition is identified, each candidate neighbor cell is evaluated based on the preset suppression condition; in the case where the result of the evaluation satisfies the preset determination condition, the better cell reselection operation is initiated.

[0029] Specifically, the terminal needs to perform cell selection when not camping on any cell, search for a suitable cell to camp on, and acquire network service. After searching for a cell, the terminal first reads a master information block (MIB) to complete cell synchronization, and then reads a system information block 1 (SIB1) to check whether the cell meets the camping conditions, including whether the public land mobile network identifier (PLMN ID) carried in the SIB1 matches the registered network of the terminal, whether the frequency band (Band) indicated by the cell is supported by the terminal, whether the cell is marked as barred, and whether the camping criteria such as cell availability, priority, access category restriction, and the like are met.

[0030] After normally camping on a cell, the terminal needs to perform cell reselection evaluation in the IDLE mode to identify and camp on a better cell to acquire network service, and in the CON mode, the network controls the terminal to perform services on an optimal cell through handover. The IDLE (Idle mode) refers to a state in which the terminal does not establish an RRC connection (Radio Resource Control connection) with the network and is in an inactive state, and the CON (RRC_CONNECTED) refers to a state in which the terminal has established an RRC connection with the network.

[0031] When one or more candidate neighbor cells are identified, various problems can occur due to unreasonable system configuration parameters set by the network.

[0032] For example, if there are unreasonable conditions such as a too small Qhyst or a too low ThreshX_High, the high-priority better cell reselection condition can be easily met, the measurement signals of inter-frequency neighbor cells are not compared with those of the serving cell, and when the serving cell configures all inter-frequency cells as high-priority frequency points, frequent reselection between inter-frequency cells occurs. For example, three cells A, B, and C are inter-frequency, A is configured as a high-priority inter-frequency cell when camping on A, the terminal reselects to B, B is configured as a high-priority inter-frequency cell when camping on B, the terminal reselects to C, C is configured as a high-priority inter-frequency cell when camping on C, and the terminal reselects back to A, resulting in frequent cyclic reselection between the cells. Inter-frequency high-priority reselection is a network control to balance the load by controlling the terminal to reselect to a neighbor cell with relatively less traffic. Frequent reselection between multiple inter-frequency cells does not achieve the purpose of load balancing, and if uplink and downlink services are received during the reselection process, the connection needs to be delayed until the reselection is completed, which can also increase the service delay. The priority of the frequency point configured in the system information does not change frequently, and when the service of the serving cell is not much, the system information configuration will not be changed in time, and the terminal does not need to reselect to an inter-frequency high-priority cell at this time. Further, for the scenario that the terminal is in a mobile state, if reselects to a neighbor cell with poor signal, the serving cell does not meet the camping condition to trigger cell search, or initiates uplink service on a weak cell, uplink transmission failure or downlink decoding failure easily occurs, resulting in large transmission delay, high service failure rate, and obvious increase in terminal power consumption.

[0033] Further, since the reselection threshold of the high-priority inter-frequency is configured to be low, the terminal is likely to reselect to an inter-frequency cell with high priority but poor signal quality, near the reselection threshold, and initiate service on the cell, resulting in high service failure rate, large service delay, high power consumption, and triggering of the cell reselection process due to poor cell signal quality, and camping back to the original cell with good quality to continue service.

[0034] Based on the above problems, the present application further sets an inhibition condition on the basis of the existing technical specifications, and after identifying the candidate neighbor cells, evaluates each candidate neighbor cell based on the inhibition condition, and only in the case that the evaluation result meets the preset determination condition, initiates the reselection operation of the better cell, thereby avoiding the problem that in the traditional technology, the priority of the inter-frequency cell is high and the reselection threshold is low, resulting in frequent reselection of multiple inter-frequency cells or poor signal of the reselected cell.

[0035] The above better cell reselection evaluation method first acquires the reselection decision data of the current serving cell and neighbor cells, identifies each neighbor cell based on the reselection decision data and the high-priority better cell reselection condition, obtains at least one candidate neighbor cell, further evaluates each candidate neighbor cell based on the preset inhibition condition, and only in the case that the evaluation result meets the preset determination condition, initiates the reselection operation of the better cell. By using the above scheme, the present application can further evaluate the identified candidate neighbor cells, avoid the situation that when the network parameter configuration is unreasonable or the set reselection threshold is low, frequent reselection between multiple inter-frequency neighbor cells is triggered, or the selected inter-frequency neighbor cell has poor signal quality resulting in service failure, thereby reducing standby power consumption, service delay, and failure rate.

[0036] Optionally, in the case that the detection result includes the reselection evaluation value and the camping duration, evaluating each candidate neighbor cell based on the preset inhibition condition includes: In the case that the camping duration of the current serving cell exceeds the stable threshold, further determining whether each candidate neighbor cell continuously meets the high-priority better cell reselection condition, and determining whether the reselection evaluation value of each candidate neighbor cell continuously exceeds the reselection evaluation value of the current serving cell within the evaluation duration.

[0037] Specifically, the setting of the evaluation duration is to join the delay confirmation mechanism to prevent the false triggering of the reselection caused by the instantaneous fluctuation. That is, after the terminal identifies the candidate neighbor cell, the terminal does not immediately initiate the reselection, but first judges the residence duration in the current serving cell. Only when the residence duration exceeds the stability threshold, the terminal further judges whether the signal strength of the candidate neighbor cell continuously monitored by the terminal is continuously better than that of the current serving cell in the evaluation duration, and judges whether the candidate neighbor cell continuously meets the reselection threshold, so as to judge whether the candidate neighbor cell really meets the stability requirement, and then decide whether to perform the actual reselection behavior.

[0038] Optionally, the judgment manner that the evaluation result meets the preset judgment condition comprises: If, in the evaluation duration, there is a candidate neighbor cell that continuously meets the high-priority better cell reselection condition and the reselection evaluation value of the candidate neighbor cell is continuously greater than the reselection evaluation value of the current serving cell, it is considered that the evaluation result meets the preset judgment condition.

[0039] With the above scheme, after at least one candidate neighbor cell is identified, it is further judged whether the preset judgment condition is continuously met in the evaluation duration, so as to determine the stability of the candidate neighbor cell, thereby avoiding the frequent reselection between multiple inter-frequency neighbor cells and reducing the standby power consumption and service time delay. Further, since the real-time measurement values of the candidate neighbor cell and the current serving cell are dynamically compared, the judgment error caused by the unreasonable setting of the threshold is avoided, and the adaptive reselection judgment mechanism based on the real-time network state is realized.

[0040] Optionally, in the case that the detection result comprises the historical behavior data, the historical behavior data comprises the identifier, the frequency point and the timestamp of the inter-frequency cell, the evaluation of each candidate neighbor cell based on the preset suppression condition further comprises: For a candidate neighbor cell, if the reselection path of the candidate neighbor cell in the historical better cell reselection has repetition or the reselection times are higher than the preset times, the evaluation of the candidate cell is stopped; wherein the identifier and the frequency point are used to determine the cell in which the reselection occurs, and the reselection path is obtained by counting the cells in which the reselection occurs; and the reselection times are obtained based on each cell in which the reselection occurs and the timestamp.

[0041] Specifically, the historical behavior data is obtained based on the historical measurement data, and can be used to construct a cell residence behavior model to help judge whether there is an abnormal cell reselection mode, such as the repeated switching between inter-frequencies, unstable residence, reselection fallback and the like. Wherein, the repetition of the reselection path refers to the repeated switching between two or more inter-frequencies.

[0042] The identifier of the inter-frequency cell is a number used to uniquely identify a logical cell, and multiple cells can operate on the same frequency. The frequency of the inter-frequency cell refers to the radio carrier frequency number on which a cell operates, and each frequency corresponds to a downlink or uplink center frequency. According to the identifier and the frequency of the inter-frequency cell, it can be identified which cell the terminal camps on or reselects each time, and it can be identified whether the terminal repeatedly switches between multiple high-priority inter-frequency cells, so as to determine whether the reselection path is repeatedly switched between a fixed number of cells.

[0043] The timestamp is used to record the time when each cell reselects. By counting the timestamps of each reselecting cell, the reselection frequency of the cell within a certain time can be obtained.

[0044] By using the above scheme, the historical behavior data can be used for auxiliary evaluation. If it is determined according to the historical behavior data that the reselection path of a candidate neighbor cell is repeated or the reselection frequency is high, it is considered that the stability of the candidate neighbor cell is not enough and the signal quality is poor, and the evaluation of the candidate neighbor cell is stopped, so as to improve the evaluation speed and reduce the power consumption.

[0045] Optionally, the evaluation of each candidate neighbor cell based on the preset suppression condition further includes: In the case that the terminal is in a high-speed or medium-speed moving state, it is determined whether the reselection evaluation value of each candidate neighbor cell is greater than the reselection evaluation value of the current serving cell.

[0046] Specifically, the description of the mobile state detection mechanism for cell reselection behavior in 3GPP includes: if the number of better cell reselections in TCRmax time exceeds NCR_H, the high-mobility state is identified; if the number of better cell reselections in TCRmax time exceeds NCR_M but is less than or equal to NCR_H, the medium-mobility state is identified; after the high-mobility state or the medium-mobility state is identified, if the state is not identified as the high-mobility state or the medium-mobility state for more than TCRmaxHyst time, the terminal enters the normal-mobility state. The parameter TCRmax represents the sliding time window length for counting the number of cell reselections; NCR_H is the first number threshold, representing the threshold for judging the high-mobility state; NCR_M is the second number threshold, representing the threshold for judging the medium-mobility state; and TCRmaxHyst represents the hysteresis time for state retention. The above-mentioned TCRmax, NCR_H, NCR_M, and TCRmaxHyst are mobility identification parameters, all of which are derived from system information. If the network configures the above-mentioned parameters, the parameters are directly used; if the network does not configure the related parameters, the default parameters are defined. When the terminal identifies the medium-mobility state or the high-mobility state, the candidate neighbor cell Rn is greater than the serving cell Rs in the high-priority reselection evaluation, and the reselection to a weaker inter-frequency neighbor cell is limited by comparing the R values of the neighbor cell and the serving cell.

[0047] Optionally, the judgment manner that the result of the evaluation satisfies the preset judgment condition includes: If the reselection evaluation value of one candidate neighbor cell is greater than the reselection evaluation value of the current serving cell, it is considered that the result of the evaluation satisfies the preset judgment condition.

[0048] With the above scheme, after at least one candidate neighbor cell is identified, the mobile state of the terminal is further judged, and in the case that the mobile state is the high-mobility state or the medium-mobility state, it is further judged whether the signal strength of the candidate neighbor cell is better than the current serving cell, so as to avoid reselecting to a weaker inter-frequency cell and reduce the service delay and failure rate.

[0049] Please refer to Figure 2 Optionally, in the case that the detection result includes the reference signal strength and the reference signal quality, each candidate neighbor cell is evaluated based on the preset suppression condition, including: In step 202, it is judged whether the reference signal strength of each candidate neighbor cell is less than the preset power threshold, and whether the reference signal quality of each candidate neighbor cell is less than the preset quality threshold.

[0050] Step 204, in the case that the reference signal strength of one candidate neighboring cell is less than the preset power threshold and the reference signal quality is less than the preset quality threshold, it is judged whether the reselection evaluation value of the candidate neighboring cell is greater than the reselection evaluation value of the current serving cell.

[0051] Optionally, the judging manner that the result of the evaluation satisfies the preset judging condition comprises: If the reselection evaluation value of the candidate neighboring cell is greater than the reselection evaluation value of the current serving cell, it is considered that the result of the evaluation satisfies the preset judging condition.

[0052] Specifically, the power threshold RsrpThresh and the quality threshold RsrqThresh are defined in advance in the embodiment of the application, and in the high-priority reselection evaluation, the evaluation condition is added, and when the inter-frequency neighboring cell RSRP signal strength and the RSRQ signal quality are lower than the set threshold, the neighboring cell Rn needs to be greater than the serving cell Rs, so as to limit the high-priority reselection to the weaker inter-frequency neighboring cell, and reduce the power consumption, the service time delay and the failure rate.

[0053] By using the above scheme, after the candidate neighboring cell is identified, the inter-frequency neighboring cell RSRP signal strength and the RSRQ signal quality are further judged, and if both are lower than the set threshold, it is continued to judge whether the signal strength of the candidate neighboring cell is better than the current serving cell, so as to directly shield the weaker inter-frequency neighboring cell, and reduce the power consumption, the service time delay and the failure rate.

[0054] It should be noted that the above three methods of evaluating each candidate neighboring cell based on the preset inhibition condition can be selected according to needs.

[0055] The above better cell reselection evaluation method further judges whether the preset judging condition is continuously satisfied within the evaluation duration after the terminal identifies the candidate neighboring cell, so as to determine the stability of the candidate neighboring cell, avoid the frequent reselection between multiple inter-frequency neighboring cells, and reduce the standby power consumption and the service time delay.

[0056] Further, the application can also be assisted by the historical behavior data. If it is judged according to the historical behavior data that the reselection path of one candidate neighboring cell exists repetition or the reselection times are higher, it is considered that the stability of the candidate neighboring cell is not enough and the signal quality is poor, and the evaluation is stopped, so as to improve the evaluation speed and reduce the power consumption.

[0057] Further, after identifying the at least one candidate neighboring cell, the application further judges the moving state of the terminal. In the case of high-speed moving state or medium-speed moving state, the signal strength of the candidate neighboring cell is further judged whether it is superior to the current serving cell, so as to avoid reselecting to a weak inter-frequency cell, and reduce the service time delay and failure rate.

[0058] Further, after identifying the candidate neighboring cell, the application further judges the inter-frequency neighboring cell RSRP signal strength and RSRQ signal quality. If both are lower than the set threshold, the signal strength of the candidate neighboring cell is further judged whether it is superior to the current serving cell, so as to directly shield the weak inter-frequency neighboring cell, reduce the power consumption, and also reduce the service time delay and failure rate.

[0059] Further, the application dynamically compares the real-time measurement values of the candidate neighboring cell and the current serving cell, avoids the judgment error caused by unreasonable setting of the threshold, and realizes the self-adaptive reselection judgment mechanism based on the real-time network state.

[0060] It should be understood that, although each step in the flowchart involved in each embodiment as described above is shown in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless explicitly stated herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other sequences. Moreover, at least part of the steps in the flowchart involved in each embodiment as described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed in rotation or alternation with at least part of other steps or steps or stages in other steps.

[0061] Based on the same inventive concept, the embodiments of the application also provide a better cell reselection evaluation system, which is suitable for the above-mentioned better cell reselection evaluation method. The implementation scheme for solving the problem provided by the system is similar to the implementation scheme described in the above method. Therefore, the specific limitations in one or more device embodiments provided below can refer to the limitations of the method described above, and will not be described here.

[0062] Please refer to Figure 3 In one embodiment, the better cell reselection evaluation system comprises an acquisition module, an identification template and an evaluation module.

[0063] The acquisition module is used to acquire the reselection decision data of the current serving cell and the neighboring cell. The reselection decision data includes the detection result and the system configuration parameter. The identification template is used to identify each neighbor cell according to the reselection decision data and the high-priority better cell reselection condition, so as to obtain at least one candidate neighbor cell satisfying the high-priority better cell reselection condition; wherein the high-priority better cell reselection condition conforms to the reselection decision criterion defined by the third generation partnership project. The evaluation module is used to evaluate each candidate neighbor cell based on the preset suppression condition; and the reselection operation of the better cell is initiated in the case that the evaluation result satisfies the preset decision condition.

[0064] Optionally, in the case that the detection result includes the reselection evaluation value and the residence duration, the evaluation module evaluates each candidate neighbor cell based on the preset suppression condition, including: in the evaluation duration, it is determined again whether each candidate neighbor cell continuously satisfies the high-priority better cell reselection condition, and it is determined whether the reselection evaluation value of each candidate neighbor cell continuously is greater than the reselection evaluation value of the current serving cell. The determination manner of the evaluation result satisfying the preset decision condition includes: in the evaluation duration, if there is a candidate neighbor cell continuously satisfying the high-priority better cell reselection condition and continuously having the reselection evaluation value greater than the reselection evaluation value of the current serving cell, it is considered that the evaluation result satisfies the preset decision condition.

[0065] Optionally, in the case that the detection result includes the historical behavior data, and the historical behavior data includes the identification, the frequency point and the timestamp of the inter-frequency cell, the evaluation module evaluates each candidate neighbor cell based on the preset suppression condition, and further includes: for a candidate neighbor cell, if the reselection path of the candidate neighbor cell in the historical better cell reselection has repetition or the reselection times are higher than the preset times, the evaluation of the candidate cell is stopped; wherein the identification and the frequency point are used to determine the cell in which the reselection occurs, the reselection path is obtained by counting the cells in which the reselection occurs, and the reselection times are obtained based on each cell in which the reselection occurs and the timestamp.

[0066] Optionally, the evaluation module evaluates each candidate neighbor cell based on the preset suppression condition, and further includes: in the case that the terminal is in a high-speed moving state or a medium-speed moving state, it is determined whether the reselection evaluation value of each candidate neighbor cell is greater than the reselection evaluation value of the current serving cell. The determination manner of the evaluation result satisfying the preset decision condition includes: if there is a candidate neighbor cell having the reselection evaluation value greater than the reselection evaluation value of the current serving cell, it is considered that the evaluation result satisfies the preset decision condition.

[0067] Optionally, in the case that the detection result comprises the reference signal strength and the reference signal quality, the evaluation module evaluates each candidate neighboring cell based on a preset suppression condition, comprising: judging whether the reference signal strength of each candidate neighboring cell is less than a preset power threshold, and judging whether the reference signal quality of each candidate neighboring cell is less than a preset quality threshold. In the case that the reference signal strength of one candidate neighboring cell is less than the preset power threshold and the reference signal quality is less than the preset quality threshold, judging whether the reselection evaluation value of the candidate neighboring cell is greater than the reselection evaluation value of the current serving cell. The judging manner of the result of the evaluation satisfying the preset determination condition comprises: if the reselection evaluation value of the candidate neighboring cell is greater than the reselection evaluation value of the current serving cell, it is considered that the result of the evaluation satisfies the preset determination condition.

[0068] The above better cell reselection evaluation system further judges whether the preset determination condition is continuously satisfied within the evaluation duration after the terminal identifies the candidate neighboring cell, so as to determine the stability of the candidate neighboring cell, avoid frequent reselection between multiple inter-frequency neighboring cells, and reduce standby power consumption and service time delay.

[0069] Further, the application can also be assisted by historical behavior data. If it is judged according to the historical behavior data that the reselection path of one candidate neighboring cell is repeated or the reselection times are high, it is considered that the stability of the candidate neighboring cell is not enough and the signal quality is poor, and the evaluation of the candidate neighboring cell is stopped, so as to improve the evaluation speed and reduce the power consumption.

[0070] Further, after identifying at least one candidate neighboring cell, the application further judges the moving state of the terminal. In the case that the moving state is a high-speed moving state or a medium-speed moving state, it is further judged whether the signal strength of the candidate neighboring cell is better than that of the current serving cell, so as to avoid reselecting to a weak inter-frequency cell and reduce service time delay and failure rate.

[0071] Further, after identifying the candidate neighboring cell, the application further judges the inter-frequency neighboring cell RSRP signal strength and RSRQ signal quality. If both are lower than the set threshold, it is further judged whether the signal strength of the candidate neighboring cell is better than that of the current serving cell, so as to directly shield the weak inter-frequency neighboring cell, reduce the power consumption, and also reduce the service time delay and failure rate.

[0072] Further, the application dynamically compares the real-time measurement values of the candidate neighboring cell and the current serving cell, avoids the judgment error caused by unreasonable setting of the threshold, and realizes the self-adaptive reselection judgment mechanism based on the real-time network state.

[0073] The modules in the better cell reselection evaluation system can be implemented by software, hardware, or a combination thereof, in whole or in part. The modules can be embedded in or independent of a processor in a computer device in hardware form, or stored in a memory in a computer device in software form, so as to be called and executed by a processor to perform the operations corresponding to the modules.

[0074] In an embodiment, a computer device, which can be a terminal, has an internal structure as shown in Figure 4 The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. The processor, the memory, and the input / output interface are connected through a system bus, and the communication interface, the display unit, and the input device are connected to the system bus through the input / output interface. The processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for running the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is configured to exchange information between the processor and external devices. The communication interface of the computer device is configured to perform wired or wireless communication with external terminals. The wireless communication can be achieved through WIFI, mobile cellular network, NFC (Near Field Communication), or other technologies. The computer program is executed by the processor to implement the better cell reselection evaluation method. The display unit of the computer device is configured to form a visually visible picture, which can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer overlaid on the display screen, or a key, trackball, or touchpad arranged on the housing of the computer device, or an external keyboard, touchpad, or mouse, etc.

[0075] Those skilled in the art can understand that Figure 4 The structure shown in the above embodiment is only a block diagram of part of the structure related to the scheme of the present application, and does not limit the computer device to which the scheme of the present application is applied. The specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0076] In an embodiment, a computer device includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the method steps in the better cell reselection evaluation method.

[0077] In an implementable embodiment, a computer readable storage medium is provided, which stores a computer program. The computer program is executed by a processor to implement the method steps in the better cell reselection evaluation method.

[0078] In an implementable embodiment, a computer program product is provided, which includes a computer program. The computer program is executed by a processor to implement the method steps in the better cell reselection evaluation method.

[0079] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer readable storage medium. When the computer program is executed, it can include the processes of the above-mentioned embodiments. Any reference to memory, database or other medium in the embodiments provided by the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided by the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided by the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0080] Any technical features in the above embodiments can be combined, and for the sake of brevity, not all possible combinations are described above, however, as long as the combinations of technical features do not contradict each other, they shall be considered within the scope of the present disclosure.

[0081] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it shall not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these shall be within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A better method for evaluating community reselection, characterized in that, include: Obtain reselection decision data for the current serving cell and neighboring cells; The reselection decision data includes detection results and system configuration parameters; Based on the reselection decision data and the reselection criteria for higher priority better cells, each neighboring cell is identified; wherein the reselection criteria for higher priority better cells meet the reselection decision criteria defined by the Third Generation Partnership Project. When at least one candidate neighbor cell that meets the conditions for reselection of the higher priority better cell is identified, each candidate neighbor cell is evaluated based on a preset suppression condition. If the evaluation results meet the preset judgment conditions, a reselection operation for a better cell is initiated.

2. The method according to claim 1, characterized in that, The test results include the reselection evaluation value and the duration of residence. The evaluation of each candidate neighboring region based on preset suppression conditions includes: If the dwell time of the current serving cell exceeds the stability threshold, within the evaluation period, it is determined again whether each of the candidate neighbor cells continues to meet the reselection conditions of the higher priority better cell, and at the same time, it is determined whether the reselection evaluation value of each of the candidate neighbor cells continues to be greater than the reselection evaluation value of the current serving cell.

3. The method according to claim 2, characterized in that, The methods for determining whether the evaluation results meet the preset judgment criteria include: If, during the evaluation period, there exists a candidate neighbor cell that consistently meets the reselection criteria for a higher-priority better cell and whose reselection evaluation value is consistently greater than that of the currently serving cell, then the evaluation result is considered to meet the preset judgment criteria.

4. The method according to claim 2, characterized in that, The detection results include historical behavior data, which includes the identifier, frequency point, and timestamp of the inter-frequency cell. The evaluation of each candidate neighboring region based on preset suppression conditions further includes: For a candidate neighbor cell, if the candidate neighbor cell has the same reselection path when reselecting a better historical cell, or if the number of reselections is higher than a preset number, then the evaluation of the candidate cell is stopped. The identifier and the frequency point are used to determine the cell where reselection occurs, the reselection path is obtained by statistically analyzing the cells where reselection occurs, and the number of reselections is obtained based on each cell where reselection occurs and the timestamp.

5. The method according to claim 1, characterized in that, The evaluation of each candidate neighboring region based on preset suppression conditions includes: When the terminal is in a high-speed or medium-speed moving state, it is determined whether the reselection evaluation value of each candidate neighbor cell is greater than the reselection evaluation value of the current serving cell.

6. The method according to claim 5, characterized in that, The methods for determining whether the evaluation results meet the preset judgment criteria include: If there exists a candidate neighbor cell whose reselection evaluation value is greater than that of the current serving cell, then the evaluation result is considered to meet the preset judgment condition.

7. The method according to claim 1, characterized in that, The detection results include reference signal strength and reference signal quality; The evaluation of each candidate neighboring region based on preset suppression conditions includes: Determine whether the reference signal strength of each candidate neighbor cell is less than a preset power threshold, and determine whether the reference signal quality of each candidate neighbor cell is less than a preset quality threshold; If there is a candidate neighbor cell whose reference signal strength is less than a preset power threshold and whose reference signal quality is less than a preset quality threshold, determine whether the reselection evaluation value of the candidate neighbor cell is greater than the reselection evaluation value of the current serving cell. The methods for determining whether the evaluation results meet the preset judgment criteria include: If the reselection evaluation value of the candidate neighbor cell is greater than the reselection evaluation value of the current serving cell, then the evaluation result is considered to meet the preset judgment condition.

8. A better community reselection evaluation system, characterized in that, The system includes: The acquisition module is used to acquire reselection decision data of the current serving cell and neighboring cells; the reselection decision data includes detection results and system configuration parameters; An identification template is used to identify each neighboring cell based on the reselection decision data and the high-priority better cell reselection conditions, so as to obtain at least one candidate neighboring cell that meets the high-priority better cell reselection conditions; wherein the high-priority better cell reselection conditions conform to the reselection decision criteria defined by the Third Generation Partnership Project. The evaluation module is used to evaluate each candidate neighbor cell based on preset suppression conditions; if the evaluation result meets preset judgment conditions, a reselection operation for a better cell is initiated.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1-7.

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