Network load balancing judgment method, device, equipment and computer storage medium

Abstract

Embodiments of the present invention provide a network load balancing determination method, apparatus, device, and computer storage medium. The method includes: obtaining a measurement report reported by a terminal device in a split cell, the measurement report including the reference signal reception frequency (RSRP) of the serving cell where the terminal device is located and the RSRP of the serving cell's neighboring cells; if the RSRP of the serving cell and the RSRP of the neighboring cells meet preset conditions, determining that there is no cross-zone coverage in the split cell; obtaining the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control (RRC) in the cell; determining a suppression point based on the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control (RRC) in the cell; determining a traffic model of the target cell based on the suppression point; and determining whether the split cell load is balanced based on the traffic model. This allows for accurate determination of whether the sector-split cell load is balanced.

Description

Technical Field

[0001] The present invention belongs to the field of mobile communications, and in particular relates to a network load balancing decision method, device, equipment and computer storage medium. Background Art

[0002] Sector splitting is a technology that converts an existing sector into two cells by adding a remote radio unit (RRU) or replacing a standard antenna with a split antenna, while maintaining the original sector's azimuth angle. Sector splitting can expand network capacity in highly utilized cells, but it also poses the problem of uneven load distribution across cells. Currently, cell load balance is determined primarily by traffic volume differences, which is not an accurate method. Summary of the Invention

[0003] The embodiments of the present invention provide a network load balancing determination method, apparatus, device and computer storage medium, which can accurately determine whether the load of a sector-split cell is balanced.

[0004] In a first aspect, an embodiment of the present invention provides a network load balancing determination method, the method comprising:

[0005] Obtain a measurement report reported by the terminal device in the split cell, where the measurement report includes the reference signal receiving frequency RSRP of the serving cell where the terminal device is located and the RSRP of the neighboring cells of the serving cell;

[0006] If the RSRP of the serving cell and the RSRP of the neighboring cell meet the preset conditions, it is determined that there is no cross-area coverage in the split cell;

[0007] Obtain the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell;

[0008] Determine the suppression point based on the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell;

[0009] Determine the traffic model of the target cell based on the suppression point;

[0010] Determine whether the split cell load is balanced based on the traffic model.

[0011] In an optional embodiment, the method further includes:

[0012] If the RSRP of the serving cell and the RSRP of the neighboring cell do not meet the preset conditions, it is determined that the split cell has over-coverage;

[0013] The azimuth angle and downtilt angle of the antennas of the split cell and the neighboring cells of the split cell are adjusted to control the coverage of the split cell and the neighboring cells of the split cell so that there is no cross-area coverage of the split cell.

[0014] In an optional implementation manner, obtaining a measurement report reported by a terminal device in a split cell includes:

[0015] Obtain service information before and after sector splitting of the target cell in the Long Term Evolution (LTR) network. The service information includes service volume, user throughput rate, and physical resource block (PRB) utilization rate.

[0016] According to the service information, which includes service volume, user throughput rate and physical resource block (PRB) utilization rate, a measurement report reported by a terminal device in the split cell is determined.

[0017] In an optional implementation, before obtaining the measurement report reported by the terminal device in the split cell, the method further includes:

[0018] Obtain the performance indicators of the target cell before and after splitting;

[0019] The prompt information is determined according to the performance index of the target cell after the splitting, and the prompt information is used to indicate that there is an engineering quality problem in the target cell.

[0020] In an optional implementation, the performance indicator includes at least one of a drop rate, an access success rate, and feeder connection information.

[0021] In an optional implementation, determining a traffic model for a split cell according to a suppression point includes:

[0022] Take the first function before the suppression point:

[0023] f(x)=a1=a1*x+b1; if x<A

[0024] Use the second function after the suppression point:

[0025] f(x)=a2*x 2 +b2*x+c2;if x≥A

[0026] Where A is the suppression point, x is the number of RRC users, and f(x) is the cell downlink traffic.

[0027] In an optional implementation, determining whether the target cell load is balanced according to the traffic model includes:

[0028] Substitute the busy hour data into the traffic model to obtain the traffic volume of the busy hour data;

[0029] Determine whether the busy hour data flow exceeds the threshold;

[0030] If so, it is determined that the cell load is unbalanced.

[0031] In a second aspect, an embodiment of the present invention provides a network load balancing decision device, the device comprising: an acquisition module, configured to acquire a measurement report reported by a terminal device in a split cell, the measurement report including a reference signal reception frequency RSRP of a serving cell where the terminal device is located and an RSRP of a neighboring cell of the serving cell;

[0032] a determination module, configured to determine that there is no cross-area coverage in the split cell if the RSRP of the serving cell and the RSRP of the neighboring cell meet a preset condition;

[0033] The acquisition module is further used to obtain the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell;

[0034] The determination module is further configured to determine a suppression point based on the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell;

[0035] The determination module is further used to determine the traffic model of the target cell according to the suppression point;

[0036] The determination module is further configured to determine whether the split cell load is balanced according to the traffic model.

[0037] In a third aspect, a network load balancing decision device is provided, comprising: a processor, and a memory storing computer program instructions; the processor reads and executes the computer program instructions to perform the first aspect or any optional implementation method of the first aspect to provide a network load balancing decision method.

[0038] In a fourth aspect, a computer storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the network load balancing determination method provided by the first aspect or any optional implementation method of the first aspect is implemented.

[0039] According to the network load balancing judgment method, apparatus, device and computer storage medium provided by the embodiments of the present invention, a measurement report reported by a terminal device in a split cell is obtained, the measurement report including the reference signal reception frequency RSRP of the serving cell where the terminal device is located and the RSRP of the neighboring cell of the serving cell; if the RSRP of the serving cell and the RSRP of the neighboring cell meet preset conditions, it is determined that there is no cross-area coverage in the split cell; the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell are obtained; the suppression point is determined according to the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell; the traffic model of the target cell is determined according to the suppression point; and whether the split cell load is balanced is determined according to the traffic model, so as to accurately determine whether the cell load of the sector split is balanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 is the directional pattern of a common antenna provided by an embodiment of the present invention;

[0042] Figure 2 is the directional pattern of the split antenna provided by an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of a cell traffic trend and suppression decision provided by an embodiment of the present invention;

[0044] Figure 4 This is a flow chart of a network load balancing determination method provided by an embodiment of the present invention;

[0045] Figure 5 This is a flow chart of another network load balancing determination method provided by an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram comparing the RSSIs of different receiving paths after sector splitting when the cell feeder is connected in reverse.

[0047] Figure 7 This is a schematic diagram comparing the RSSIs of different receiving paths with normal cell feeder after sector splitting;

[0048] Figure 8 is a schematic diagram of a coordinate system provided by an embodiment of the present invention;

[0049] Figure 9 is another coordinate system schematic diagram provided by an embodiment of the present invention;

[0050] Figure 10 is another coordinate system schematic diagram provided by an embodiment of the present invention;

[0051] Figure 11 is another coordinate system schematic diagram provided by an embodiment of the present invention;

[0052] Figure 12 This is a schematic diagram of the structure of a network load balancing decision device provided by an embodiment of the present invention;

[0053] Figure 13 It is a schematic diagram of the hardware structure of the network load balancing decision device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0054] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0055] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0056] First, to facilitate understanding of the embodiments of the present invention, the following section first specifically explains the design technical terms:

[0057] Sector splitting is to add a remote radio unit (RRU) and replace the ordinary antenna with a split antenna on the basis of keeping the azimuth angle of the original sector unchanged, so as to convert the original sector into two cells. Figure 1 The directional pattern of the common antenna provided by the embodiment of the present invention. The split antenna is a radome that integrates two dual-polarized antennas.

[0058] Figure 2 is the directional pattern of the split antenna provided by the embodiment of the present invention, such as Figure 2 As shown, after adding an RRU and replacing the standard antenna with a split antenna, connected to the indoor baseband unit (BBU), the original sector becomes two cells, where the original sector has a total of one cell, thereby achieving network capacity expansion. The split antenna maintains the original standard antenna's azimuth angle, but compared to a standard antenna, the split antenna is a narrower beam antenna. The two cells within the split antenna maintain azimuth angles of -30 degrees and 30 degrees, minimizing the overlap between the two cells and minimizing interference caused by overlapping coverage, thereby achieving the design requirement of increasing base station capacity.

[0059] The standards that sector splitting in currently operating Frequency Division Duplexing Long Term Evolution (FDD LTE) networks must meet are as follows:

[0060] 1) Downlink physical resource block (PRB) utilization > 85%;

[0061] 2) 4G user throughput rate during the cell's busy hours is less than 2Mbps;

[0062] 3) Under large packet conditions, the number of radio resource control (RRC) connected users is greater than 36, and under small packet conditions, the number of RRC connected users is greater than 72.

[0063] Timing Advance (TA): In LTE, uplink signals from different user equipment (UE) must be time-aligned when arriving at the evolved Node B (eNodeB) to ensure orthogonality between uplink signals between UEs, thereby helping to eliminate interference within the cell.

[0064] There is a delay in signal transmission in space. If the UE moves away from the base station during a call, the signal sent from the base station will arrive at the UE "later and later". At the same time, the UE's signal will also arrive at the base station "later and later". Excessive delay will cause the UE's signal received by the base station in the current time slot to overlap with the time slot in which the base station receives the next UE's signal, causing inter-symbol interference.

[0065] Time alignment for uplink transmission is achieved by applying TA on the UE transmitting side. The main purpose of TA is to eliminate the different transmission delays between UEs.

[0066] In the LTE network, there is a basic time unit: Ts, radio frame length (307200*Ts), time slot length (15360*TS), namely:

[0067] Ts = 1 / (15000*2048), the unit is seconds.

[0068] The FFT size used for OFDM symbol generation in the LTE system is 2048, and the sampling frequency is 15kHz. Taking a 20MHz bandwidth as an example, the sampling rate of the 20MHz bandwidth is 15kHz*2048=3.072MHz. In this way, Ts can be understood as the sampling period of the OFDM symbol, that is, the period of one OFDM symbol is Ts=1 / (15000*2048).

[0069] TA is the distance between the UE and the antenna port. The timing advance distance corresponding to 1Ts is equal to:

[0070] C*Ts=4.89m.

[0071] During the random access process, the eNodeB measures the uplink PRACH preamble sequence and carries 11 bits of information in the MAC payload of the RAR (Random Access Response). The TA range is between 0 and 1282. Based on the TA value in the RAR, the UE adjusts the uplink transmission time NTA = 1*16Ts.

[0072] For example, TA=1, which indicates that the distance between the UE and the base station is 16*4.89m=78.12m.

[0073] Traffic suppression: the traffic trend of the community has entered a stage of slowing growth, with the traffic growth rate declining and deviating from the ideal growth trend. Figure 3 Schematic diagram of cell traffic trend and suppression decision provided by an embodiment of the present invention. Figure 3 As shown:

[0074] The traffic trend of LTE network cells goes through three stages:

[0075] First, in the early stages of network construction, the cell capacity is sufficient and the service rate requirements of each user are met: the cell traffic growth increases linearly with the number of users joining the network.

[0076] Secondly, as the number of users joining the network increases, resources are limited, resulting in reduced demand from some users: the growth in cell traffic cannot keep pace with the growth in users.

[0077] Finally, as the number of users joining the network continued to increase, the user experience deteriorated, causing some users to reduce their demand or even stop using the service: the growth of community users no longer brought about traffic growth.

[0078] The judgment of traffic suppression in a cell is mainly based on points A and B. The phenomenon of traffic suppression is manifested in: the number of users continues to increase, but traffic growth is limited or even decreases.

[0079] The traffic suppression decision principle is as follows:

[0080] Free growth zone - cell resources are not limited and user traffic increases linearly;

[0081] Traffic suppression area - Community resources are limited to a certain extent, the average household traffic is reduced, and the overall community traffic is suppressed;

[0082] Severely Suppressed Traffic Area - Cell resources have reached their carrying capacity limit, and traffic is severely suppressed.

[0083] Currently, the following technical problems still exist after sector splitting:

[0084] First, the overlapping interference caused by adding a cell on the basis of the original antenna direction angle after the sector splitting is implemented is not considered.

[0085] The LTE system's inherent Mode 3 interference places high demands on overlapping coverage. The three cells of each base station can be reasonably planned with PCI to avoid Mode 3 interference. However, if one sector becomes two cells, especially if all three sectors of the original base station are sector-split, the original three cells become six cells. In the overlapping coverage area near the base station, the Mode 3 interference caused by overlapping coverage will become very serious.

[0086] Second, the actual situation of frequent handovers in the overlapping area has not been evaluated.

[0087] If the user groups of two cells balanced by traffic volume are concentrated in the overlapping coverage area, frequent handovers will inevitably occur between the two cells, affecting the user experience. Even if the traffic volume of the two cells remains basically the same after sector splitting, it is still necessary to judge that the service balancing performance after the sector split is poor. Otherwise, it may lead to user complaints and possible network switching and detachment.

[0088] Third, the actual location of users after sector splitting is not evaluated.

[0089] If sector splitting is implemented while maintaining the original normal antenna azimuth, the main lobe directions of the two cells are -30 degrees and 30 degrees, respectively. This indicates that the coverage areas of the two cells are different. If the user distribution within the actual coverage area is also different, with most users concentrated in one cell, the traffic volume of the other cell will inevitably be lower. Therefore, load balancing for sector splitting cannot be determined solely by traffic volume.

[0090] In order to solve the problems of the prior art, embodiments of the present invention provide a network load balancing determination method, apparatus, device and computer storage medium.

[0091] The following first introduces the network load balancing decision method provided by the embodiment of the present invention.

[0092] Figure 4 FIG. 1 is a flow chart showing a method for determining network load balancing according to an embodiment of the present invention. Figure 4 As shown, the method may include the following steps:

[0093] S401: Obtain a measurement report reported by a terminal device in a split cell.

[0094] The measurement report includes the Reference Signal Receiving Power (RSRP) of the serving cell where the terminal device is located and the RSRP of the neighboring cells of the serving cell.

[0095] In some embodiments, the measurement report also includes a TA value.

[0096] S402: If the RSRP of the serving cell and the RSRP of the neighboring cell meet a preset condition, it is determined that there is no cross-area coverage in the split cell.

[0097] In some embodiments, if it is determined that there is no cross-area coverage of the split cell, network load balancing is determined.

[0098] S403: Obtain the downlink traffic of the split cell and the number of terminal devices connected to the RRC in the cell.

[0099] S404: Determine a suppression point according to the downlink traffic of the split cell and the number of terminal devices connected to the RRC in the cell.

[0100] S405: Determine the traffic model of the target cell according to the suppression point.

[0101] S406: Determine whether the split cell load is balanced according to the traffic model.

[0102] According to the network load balancing judgment method in an embodiment of the present invention, a measurement report reported by a terminal device in a split cell is obtained, the measurement report including the reference signal receiving frequency RSRP of the serving cell where the terminal device is located and the RSRP of the neighboring cell of the serving cell. If the RSRP of the serving cell and the RSRP of the neighboring cell meet preset conditions, it is determined that there is no cross-area coverage in the split cell, the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell are obtained, the suppression point is determined according to the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell, the traffic model of the target cell is determined according to the suppression point, and whether the split cell load is balanced is determined according to the traffic model, so as to accurately determine whether the cell load of the sector split is balanced.

[0103] Based on the above embodiments of the present invention, combined with Figure 5 The network load balancing decision method shown is Figure 5 A flow chart of another network load balancing decision method provided by an embodiment of the present invention is shown as follows: Figure 5 As shown, the network load balancing decision method 500 may include S501 to S512.

[0104] S501: Obtain performance indicators of a target cell before and after splitting.

[0105] The performance indicator includes at least one of a drop rate, an access success rate, and feeder connection information.

[0106] In some embodiments, the cell performance indicators include: cell-level performance indicators: Circuit Switched Fallback (CSFB) success rate, Packet Switch (PS) drop rate, handover success rate, and call access success rate indicators; indicators in road testing using test instruments: Circuit Switch Call Setup Success Rate (CS CSSR), Packet Switch Call Setup Success Rate (PS CSSR), Packet Switch Daily Communication Report (PS DCR), Packet Switch Hierarchical State Routing (PS HSR), and Received Signal Strength Indicator (RSSI) of the receiving path of the two cells after splitting.

[0107] S502: Determine prompt information according to the performance indicator of the target cell after splitting.

[0108] In some embodiments, determining prompt information based on performance indicators after the target cell is split includes: judging whether the CSFB success rate, PS drop rate, handover success rate, and call access success rate indicators exceed the threshold; if so, prompting that the project quality does not meet the standards.

[0109] As a specific example, determine whether the CSFB success rate, PS drop rate, handover success rate, and call access success rate indicators are lower than 0.2%.

[0110] In some embodiments, determining prompt information based on performance indicators of the target cell after splitting includes: performing a road test on the split sector using a test instrument to measure the following thresholds: CS CSSR, PS CSSR, PS DCR, and PS HSR.

[0111] As a specific example, it is determined whether the CS CSSR is greater than or equal to 90%, whether the PS CSSR is greater than or equal to 90%, whether the PS DCR is less than or equal to 5%, and whether the PS HSR is greater than or equal to 90%.

[0112] In some embodiments, determining prompt information according to the performance indicator of the target cell after splitting includes:

[0113] Collect feeder VSWR alarms for the split sector, and check for feeder reverse connection after confirming that there are no VSWR alarms.

[0114] Let's take a concrete example. Figure 6 This is a schematic diagram comparing the RSSIs of different receiving paths after sector splitting and the reverse connection of the cell feeder. Figure 7 The following is a schematic diagram of RSSI comparison of different receiving paths of normal cell feeder after sector splitting. Figure 6 and Figure 7 As shown: If obvious inconsistencies are found, it indicates that the project quality does not meet the standards.

[0115] S503 : Acquire service information of a target cell before and after sector cell splitting is completed in a long term evolution (LTR) network. The service information includes service volume, user throughput rate, and physical resource block (PRB) utilization rate.

[0116] S504 : Determine a measurement report reported by a terminal device in the split cell according to service information, which includes service volume, user throughput rate, and physical resource block (PRB) utilization rate.

[0117] The measurement report includes the reference signal reception frequency RSRP of the serving cell where the terminal device is located and the RSRP of the neighboring cells of the serving cell.

[0118] In some embodiments, determining a measurement report reported by a terminal device in a split cell includes:

[0119] The target cell is obtained by screening, that is, the cell where the sector splitting is completed.

[0120] S505, judging whether the RSRP of the serving cell and the RSRP of the neighboring cell meet the preset conditions; if so, proceeding to step S206; if not, proceeding to step S212.

[0121] In some embodiments, the serving cell of the MR sampling point is selected as the MR sampling point of the target cell, including the serving cell RSRP, neighboring cell RSRP, and TA value, and the target cell and the split cell in the same sector are calculated, and the preset conditions are met based on the above data.

[0122] As a specific example, determine whether the serving cell RSRP is greater than -110dBm. If so, coverage is performed.

[0123] As a specific example, determine whether the absolute value of the difference between the serving cell RSRP and the neighboring cell RSRP is less than 6dB. If so, coverage is achieved.

[0124] As a specific example, determine whether there are more than or equal to 3 adjacent cells that meet the requirement that the absolute value of the difference between the neighboring cell RSRP and the serving cell RSRP is less than 6dB. If so, then coverage is achieved.

[0125] As a specific example, it is determined whether the proportion of terminal devices that meet the condition that the absolute value of the difference between the neighboring cell RSRP and the serving cell RSRP is less than 6dB accounts for more than or equal to 5% of all terminal devices.

[0126] As a specific example, the traffic user throughput rate and PRB utilization index of two cells with network sector IDs 51065_1 and 51065_3 after sector splitting are shown in Table 1:

[0127]

[0128] Table 1

[0129] Among them, section address: Section ID, traffic: Traffic, before: Pre, standard: Post, change: Change, increment: delta, user throughput: Throughput, PRB utilization: PRB Utilization.

[0130] After the sector splitting is completed, the corresponding cell IDs of the sector ID 51065_1 are 51065_0 and 51065_3.

[0131] After the sector splitting is completed, the corresponding cell IDs of the sector ID 51065_3 are 51065_2 and 51065_5.

[0132] It is found that the split cell 51065_0 is the top 1 high overlapping coverage cell of the split cell 51065_3 in the same sector.

[0133] Split cell 51065_3 is the top 1 high-overlapping coverage cell of split cell 51065_0 in the same sector. Similarly, split cell 51065_2 is also the top 1 high-overlapping coverage cell of split cell 51065_5 in the same sector. As shown in Table 2:

[0134]

[0135] Table 2

[0136] Among them, base station identification code: eNodeB ID, cell identification code: Cell ID, total sampling points: Total SamplingPoints, overlapping sampling points: Overlapped Sampling Points, overlapping sampling point percentage: OverlappedPoints Ratio, strongest interfering cell: Top1 Interfering Cell, strongest interfering cell overlapping sampling point percentage: Top1 Interfering Cell Overlapped Points Ratio.

[0137] Check the overlapping coverage ratio between the target cell and other co-sited cells and non-co-sited cells. Calculate the top 1 to top 6 cells with high overlapping coverage of the target cell, as shown in Table 3:

[0138]

[0139] Table 3

[0140] Among them, the base station identification code is: eNodeB ID, the cell identification code is: Cell ID, the strongest interfering cell is: Top1Interfering Cell, and the percentage of overlapping sampling points of the strongest interfering cell is: Top1 Interfering CellOverlapped Points Ratio.

[0141] Table 3 shows that the overlap between split cells 51221_0 and 51221_5 in different sectors is too high. Similarly, the overlap between split cells 51221_5 and 51221_0 in different sectors is too high. Therefore, it is determined that the load in this sector is unbalanced after splitting, and optimization adjustments are required.

[0142] Analyze the TA value, which can be used to represent the distance between the user terminal and the base station.

[0143] Let's take a specific example, as shown in Table 4:

[0144]

[0145] Table 4

[0146] Among them, the cell identification code is: Cell ID, and the TA value is between 1 and 3: TA in the range of 0 to 1.

[0147] As can be seen from the preceding table, the TA values of the two cells 51221_0 and 51221_3 after sector splitting are significantly different. The TA value of 51221_3 is basically in the TA ranges [3-5] and [5-7], but the TA value of 51221_0 is in the TA ranges [13-20], [20-27], [27-34], [34-40], and [40-50]. This indicates that one of the cells has out-of-range coverage after sector splitting and requires optimization and adjustment.

[0148] S506: Obtain the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell.

[0149] S507 : Determine a suppression point according to the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell.

[0150] In some embodiments, a coordinate system is established based on the number of terminals connected to the RRC and the downlink traffic of the cell.

[0151] Figure 8 is a schematic diagram of a coordinate system provided by an embodiment of the present invention. In some embodiments, Figure 8 As shown, sample data with poor channel quality indicator (CQI) are cleared to improve the accuracy of the model.

[0152] Figure 9 is another coordinate system diagram provided by an embodiment of the present invention. In some embodiments, such as Figure 9 As shown, data padding ensures that the cell has samples with free traffic growth, and interpolates lightly loaded samples by randomly diffusing them toward the origin.

[0153] Figure 10 is another coordinate system diagram provided by an embodiment of the present invention. In some embodiments, such as Figure 10 As shown in the figure, the data is filled in. Severe repression: the curve model has a peak point; mild repression: the curve model has a high degree of fit. Non-repression: the linear model has a high degree of fit.

[0154] Figure 11 A schematic diagram of another coordinate system provided in an embodiment of the present invention, in some embodiments, such as Figure 11 As shown, point A: the point that makes the OA line in the non-suppression area: starting from this point, the actual traffic curve begins to deviate from the ideal traffic straight line; point B: the highest point of the curve model: starting from this point, the traffic begins to decrease, and the traffic suppression point of the cell is determined to be point A.

[0155] S508: adopting the first function before the suppression point and adopting the second function after the suppression point.

[0156] In some embodiments, a first function is employed before the depression point:

[0157] f(x)=a1=a1*x+b1; if x<A

[0158] Use the second function after the suppression point:

[0159] f(x)=a2*x 2 +b2*x+c2;if x≥A

[0160] Where A is the suppression point, x is the number of RRC users, and f(x) is the cell downlink traffic.

[0161] S509, substitute the busy hour data into the traffic model to obtain the traffic of the busy hour data, and determine whether the traffic of the busy hour data exceeds the threshold; if so, proceed to step S510, if not, proceed to step S511.

[0162] In some embodiments, determining whether the traffic volume of busy-hour data in the traffic model exceeds a threshold includes:

[0163] Substitute the number of busy-hour RRC users into the model to obtain the actual cell downlink traffic during the busy-hour data, and determine whether the difference between the actual cell downlink traffic and the ideal cell downlink traffic meets the threshold. Alternatively, obtain the ratio of the difference between the actual cell downlink traffic and the ideal cell downlink traffic to the ideal cell downlink traffic, and determine whether the ratio exceeds the threshold.

[0164] S510: Determine whether the cell network load is unbalanced.

[0165] S511, determine the cell network load balance.

[0166] S512: Adjust the azimuth angle and downtilt angle of the antennas of the split cell and the neighboring cells of the split cell to control the coverage of the split cell and the neighboring cells of the split cell so that there is no cross-area coverage of the split cell.

[0167] According to the network load balancing judgment method in an embodiment of the present invention, a measurement report reported by a terminal device in a split cell is obtained, the measurement report including the reference signal receiving frequency RSRP of the serving cell where the terminal device is located and the RSRP of the neighboring cell of the serving cell. If the RSRP of the serving cell and the RSRP of the neighboring cell meet preset conditions, it is determined that there is no cross-area coverage in the split cell, the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell are obtained, the suppression point is determined according to the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell, the traffic model of the target cell is determined according to the suppression point, and whether the split cell load is balanced is determined according to the traffic model, so as to accurately determine whether the cell load of the sector split is balanced.

[0168] Based on the same inventive concept, an embodiment of the present invention provides a network load balancing decision device. Figure 12 This is a schematic diagram of the structure of a network load balancing device provided by an embodiment of the present invention. Figure 12 The network load balancing decision device 1200 includes: an acquisition module 1201 configured to acquire a measurement report reported by a terminal device in a split cell, the measurement report including the reference signal receiving frequency RSRP of the serving cell where the terminal device is located and the RSRP of the neighboring cells of the serving cell.

[0169] The determining module 1202 is configured to determine that there is no cross-cell coverage in the split cell if the RSRP of the serving cell and the RSRP of the neighboring cell meet a preset condition.

[0170] The acquisition module 1201 is further configured to acquire the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell.

[0171] The determining module 1202 is further configured to determine a suppression point according to the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell.

[0172] The determination module 1202 is further configured to determine a traffic model of the target cell according to the suppression point.

[0173] The determination module 1202 is further configured to determine whether the split cell load is balanced according to the traffic model.

[0174] In some embodiments, the device also includes an adjustment module 1203, which is used to determine that the split cell has cross-area coverage if the RSRP of the serving cell and the RSRP of the neighboring cell do not meet the preset conditions, and adjust the direction angle and downtilt angle of the antenna of the split cell and the neighboring cell of the split cell to control the coverage range of the split cell and the neighboring cell of the split cell so that the split cell does not have cross-area coverage.

[0175] In some embodiments, the acquisition module 1201 is specifically configured to acquire service information of a target cell in a long-term evolution (LTR) network before and after sector cell splitting is completed, the service information including service volume, user throughput rate, and physical resource block (PRB) utilization rate. Based on the service information including service volume, user throughput rate, and physical resource block (PRB) utilization rate, a measurement report reported by a terminal device in the split cell is determined.

[0176] In some embodiments, the acquisition module 1201 is further configured to acquire performance indicators of the target cell before and after splitting, and determine prompt information based on the performance indicators of the target cell after splitting, where the prompt information is used to indicate that there is an engineering quality problem in the target cell.

[0177] In some embodiments, the determining module 1202 is specifically configured to use a first function before the depression point:

[0178] f(x)=a1=a1*x+b1; if x<A

[0179] Use the second function after the suppression point:

[0180] f(x)=a2*x 2 +b2*x+c2;if x≥A

[0181] Where A is the suppression point, x is the number of RRC users, and f(x) is the cell downlink traffic.

[0182] In some embodiments, the determination module is specifically configured to substitute the busy hour data into the traffic model to obtain the traffic of the busy hour data and determine whether the traffic of the busy hour data exceeds a threshold; if so, determining that the cell network load is unbalanced.

[0183] Other details of the network load balancing decision device according to the embodiment of the present invention are combined with the above Figures 1 to 11 The network load balancing decision method described in the embodiment is similar and can achieve its corresponding technical effect. For the sake of brevity, it will not be repeated here.

[0184] Figure 13 A schematic diagram of the hardware structure of a network load balancing decision device provided in an embodiment of the present application is shown.

[0185] like Figure 13As shown, the network load balancing decision device 1300 includes an input device 1301, an input interface 1302, a central processing unit 1303, a memory 1304, an output interface 1305, and an output device 1304. The input interface 1302, the central processing unit 1303, the memory 1304, and the output interface 1305 are interconnected via a bus 1310, and the input device 1301 and the output device 1304 are connected to the bus 1310 via the input interface 1302 and the output interface 1305, respectively, and are further connected to other components of the key generation and identity authentication device 1300.

[0186] Specifically, the input device 1301 receives input information from the outside and transmits the input information to the central processing unit 1303 through the input interface 1302; the central processing unit 1303 processes the input information based on the computer executable instructions stored in the memory 1304 to generate output information, stores the output information temporarily or permanently in the memory 1304, and then transmits the output information to the output device 1304 through the output interface 1305; the output device 1304 outputs the output information to the outside of the key generation and identity authentication device 1300 for user use.

[0187] That is to say, Figure 13 The network load balancing decision device shown can also be implemented as comprising: a memory storing computer executable instructions; and a processor, which can realize the combination of Figures 1 to 11 Describes a method for network load balancing decisions.

[0188] In one embodiment, Figure 13 The network load balancing decision 1300 shown may be implemented as a device, which may include: a memory for storing a program; and a processor for running the program stored in the memory to execute the network load balancing decision method according to an embodiment of the present invention.

[0189] An embodiment of the present invention further provides a computer storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the network load balancing determination method of the embodiment of the present invention is implemented.

[0190] It should be understood that the present invention is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted. In the above embodiments, several specific steps are described and illustrated as examples. However, the method of the present invention is not limited to the specific steps described and illustrated. Those skilled in the art may make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present invention.

[0191] The functional blocks shown in the above structured block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), suitable firmware, a plug-in unit, a function card or the like. When implemented in software, the elements of the present invention are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium that can store or transmit information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0192] It should also be noted that the exemplary embodiments described herein describe methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the steps described above. In other words, the steps may be performed in the order described in the embodiments, or in a different order, or several steps may be performed simultaneously.

[0193] The above is only a specific embodiment of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims

1. A network load balancing decision method, characterized in that: include: Obtain a measurement report reported by a terminal device in a split cell, where the measurement report includes a reference signal receiving frequency (RSRP) of a serving cell where the terminal device is located and an RSRP of a neighboring cell of the serving cell; If the RSRP of the serving cell and the RSRP of the neighboring cell meet a preset condition, determining that there is no cross-area coverage in the split cell; Obtaining the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell; Determine a suppression point based on the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell; Determining a traffic model of the split cell according to the suppression point; Determine whether the split cell load is balanced according to the traffic model.

2. The method according to claim 1, characterized in that The method further comprises: If the RSRP of the serving cell and the RSRP of the neighboring cell do not meet a preset condition, determining that the split cell has over-coverage; The azimuth angle and downtilt angle of the antenna of the split cell and the neighboring cell of the split cell are adjusted to control the coverage of the split cell and the neighboring cell of the split cell so that the split cell does not have cross coverage.

3. The method according to claim 1 or 2, characterized in that The obtaining of the measurement report reported by the terminal device in the split cell includes: Obtaining service information before and after the completion of sector cell splitting of a split cell in a long term evolution (LTR) network, the service information including service volume, user throughput rate, and physical resource block (PRB) utilization rate; According to the service information, which includes service volume, user throughput rate and physical resource block (PRB) utilization rate, a measurement report reported by a terminal device in the split cell is determined.

4. The method according to claim 1, wherein Before obtaining the measurement report reported by the terminal device in the split cell, the method further includes: Obtain performance indicators of the split cell before and after splitting; Prompt information is determined according to the performance index of the split cell after the splitting, and the prompt information is used to prompt that there is an engineering quality problem in the split cell.

5. The method according to claim 4, characterized in that The performance indicator includes at least one of a drop rate, an access success rate, and feeder connection information.

6. The method according to claim 1, characterized in that The determining the traffic model of the split cell according to the suppression point includes: Take the first function before the suppression point: f(x)=a1=a1*x+b1;if x is after the suppression point, use the second function: Where A is the suppression point, x is the number of RRC users, and f(x) is the cell downlink traffic. f(x)=a2*x 2 +b2*x+c2;if x≥A Determining whether the split cell load is balanced according to the traffic model:

7. The method according to claim 1, characterized in that Substituting the busy hour data into the traffic model to obtain the traffic of the busy hour data; Determining whether the flow of the busy hour data exceeds a threshold; If so, it is determined that the cell network load is unbalanced. The device comprises:

8. A network load balancing decision device, characterized in that: An acquisition module is configured to acquire a measurement report reported by a terminal device in a split cell, the measurement report including a reference signal reception frequency RSRP of a serving cell where the terminal device is located and an RSRP of a neighboring cell of the serving cell; a determination module, configured to determine that there is no cross-area coverage in the split cell if the RSRP of the serving cell and the RSRP of the neighboring cell meet a preset condition; ​ The acquisition module is further used to obtain the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell; The determination module is further configured to determine a suppression point based on the downlink traffic of the split cell and the number of terminal devices connected to the radio resource control RRC in the cell; The determination module is further configured to determine a traffic model of the split cell according to the suppression point; The determination module is further configured to determine whether the split cell load is balanced according to the traffic model.

9. A network load balancing decision device, characterized in that: The device includes: a processor and a memory storing computer program instructions; the processor reads and executes the computer program instructions to implement the network load balancing determination method according to any one of claims 1 to 7.

10. A computer storage medium, characterized in that The computer storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the network load balancing determination method according to any one of claims 1 to 7 is implemented.

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