Network static beam adaptive adjustment method, device, equipment and storage medium
By adjusting the parameters of the static beam in the Massive MIMO scenario, the problem of cell load imbalance is solved, and more balanced PRB utilization and better network performance are achieved.
Patent Information
- Application Number
- CN202111026835.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-09-02
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2041-09-02
AI Technical Summary
In Massive MIMO scenarios, the setting of the static beam causes unbalanced cell load, resulting in high loads in some cells and low loads in others.
By collecting the power sharing performance indicators of each cell corresponding to the static beam, the first cell with the power sharing record and the second cell with the power sharing record are determined, and their initial beam parameters are adjusted, the horizontal beam width of the first cell is increased, and the horizontal beam width of the second cell is reduced, so as to achieve load balancing.
By adjusting the beam parameters, the load of different cells can be effectively balanced, ensuring that the PRB utilization rate of each cell is more balanced, thereby improving the overall network performance and user experience.
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Figure CN115843043B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of communication technology, and in particular to a network static beam adaptive adjustment method, device, equipment and storage medium. Background Art
[0002] At present, in the field of mobile communications, the evolution process of LTE-FDD (Long Term Evolution-Frequency Division Duplex) network to NR-FDD (New Radio-Frequency Division Duplex) network generally has a Massive MIMO antenna (Massive multiple input multiple output) scenario.
[0003] In the Massive MIMO scenario, a static shared beam (SSB) is used to implement spatial division multiplexing. For example, four static beams can be generated through software control (each static beam corresponds to a cell, and the same scheduling time is simultaneously scheduled in different cells) to achieve spatial division multiplexing.
[0004] Due to user distribution, the four static beams generated by Massive MIMO have different numbers of access users and PRB (Physical Resource Block) utilization rates among the cells corresponding to them, resulting in unbalanced cell load. Summary of the invention
[0005] The main purpose of the present application is to provide a network static beam adaptive adjustment method, device, equipment and storage medium, aiming to solve the technical problem of unbalanced cell load in the existing FDD mode Massive MIMO beam scenario.
[0006] To achieve the above object, the present application provides a network static beam adaptive adjustment method, the network static beam adaptive adjustment method comprising:
[0007] Determine initial beam parameters of the MIMO antenna corresponding to the static beam;
[0008] Collecting the power sharing performance index of each cell corresponding to the static beam, and determining a first cell having a power sharing out record and a second cell having a power sharing in record;
[0009] Increasing the horizontal beam width in the initial beam parameters of the first cell to obtain a first horizontal beam width, and reducing the horizontal beam width in the initial beam parameters of the second cell to obtain a second horizontal beam width;
[0010] A user terminal is accessed based on the first horizontal beam width and the second horizontal beam width.
[0011] Optionally, after the step based on the first horizontal beam width and the first horizontal beam width, the method further includes:
[0012] Determine a number of times the first cell power is shared;
[0013] If the number of times of sharing exceeds a preset number threshold, the normal direction angle in the initial beam parameters of the first cell is adjusted to the second cell, and the user terminal is connected.
[0014] Optionally, after the step of adjusting the normal direction angle in the initial beam parameters of the first cell to be directed to the second cell, the method includes:
[0015] The normal direction angle in the initial beam parameters of the second cell is adjusted to the opposite direction of the first cell, ensuring that the angle between the normal direction angles corresponding to the first cell and the second cell is greater than the preset normal angle, and the user terminal is connected.
[0016] Optionally, after the step of determining a first cell having a power sharing out record and a second cell having a power sharing in record, the method further includes:
[0017] reducing a first allocated power in an initial beam parameter of the first cell, and increasing a second allocated power in an initial beam parameter of the second cell;
[0018] The user terminal is accessed based on the first allocated power and the second allocated power.
[0019] Optionally, after the step of accessing a user terminal based on the first horizontal beam width and the second horizontal beam width, the method further includes:
[0020] Statistics on the service busy status of user terminals in different time periods;
[0021] The first horizontal beam width and the second horizontal beam width are adjusted in an orderly manner to match the busy traffic state.
[0022] Optionally, the step of orderly adjusting the first horizontal beam width and the second horizontal beam width to match the busy service state includes:
[0023] Based on the busy state of the service, determining the concentrated location of the user terminals in the corresponding time period;
[0024] Based on the first horizontal beam width and the second horizontal beam width, a main lobe of the static beam is adjusted to point to the concentrated position.
[0025] Optionally, the step of determining a first cell having a power sharing out record and a second cell having a power sharing in record includes:
[0026] If it is detected that the instantaneous PRB utilization rate of the cell network downlink is lower than the first utilization rate threshold, the corresponding cell is the first cell with the power sharing record;
[0027] If it is detected that the instantaneous PRB utilization rate of the cell network downlink is higher than the second utilization rate threshold, the corresponding cell is the first cell with a power sharing record.
[0028] The present application also provides a network static beam adaptive adjustment device, the network static beam adaptive adjustment device comprising:
[0029] A first determination module is used to determine initial beam parameters of a static beam corresponding to a MIMO antenna;
[0030] A second determination module is used to collect the power sharing performance index of each cell corresponding to the static beam, and determine the first cell with a power sharing out record and the second cell with a power sharing in record;
[0031] A horizontal beam width acquisition module, used to increase the horizontal beam width in the initial beam parameters of the first cell to obtain a first horizontal beam width, and reduce the horizontal beam width in the initial beam parameters of the second cell to obtain a second horizontal beam width;
[0032] The first access module is used to access the user terminal based on the first horizontal beam width and the second horizontal beam width.
[0033] Optionally, the network static beam adaptive adjustment device further includes:
[0034] A third determining module is used to determine the number of times the first cell power is shared;
[0035] A steering adjustment module is used to steer the normal direction angle in the initial beam parameters of the first cell to the second cell and access the user terminal if the number of times the sharing exceeds a preset number threshold.
[0036] Optionally, the network static beam adaptive adjustment device further includes:
[0037] The ensuring module is used to adjust the normal direction angle in the initial beam parameters of the second cell to the opposite direction of the first cell, ensure that the angle between the normal direction angles corresponding to the first cell and the second cell is greater than a preset normal angle, and access the user terminal.
[0038] Optionally, the network static beam adaptive adjustment device further includes:
[0039] A power allocation module, configured to reduce a first allocated power in an initial beam parameter of the first cell, and increase a second allocated power in an initial beam parameter of the second cell;
[0040] The second access module is used to access the user terminal based on the first allocated power and the second allocated power.
[0041] Optionally, the network static beam adaptive adjustment device further includes:
[0042] A statistics module is used to count the service busy status of user terminals in different time periods;
[0043] An orderly adjustment module is used to adjust the first horizontal beam width and the second horizontal beam width in an orderly manner to match the busy service state.
[0044] Optionally, the orderly adjustment module includes:
[0045] A determination unit, configured to determine a concentrated location of user terminals in a corresponding time period based on the busy service state;
[0046] The pointing adjustment unit is used to adjust the main lobe of the static beam to point to the concentrated position based on the first horizontal beam width and the second horizontal beam width.
[0047] Optionally, the first determining module is configured to include:
[0048] A first detection unit, configured to detect that if the instantaneous PRB utilization rate of the cell network downlink is lower than a first utilization rate threshold, the corresponding cell is the first cell with a power sharing record;
[0049] The second detection unit is used to detect that if the instantaneous PRB utilization rate of the cell network downlink is higher than the second utilization rate threshold, the corresponding cell is the first cell with a power sharing record.
[0050] The present application also provides a network static beam adaptive adjustment device, which is a physical node device. The network static beam adaptive adjustment device includes: a memory, a processor, and a program of the network static beam adaptive adjustment method stored in the memory and executable on the processor. When the program of the network static beam adaptive adjustment method is executed by the processor, the steps of the network static beam adaptive adjustment method as described above can be implemented.
[0051] The present application also provides a storage medium, on which is stored a program for implementing the above-mentioned network static beam adaptive adjustment method. When the program of the network static beam adaptive adjustment method is executed by a processor, the steps of the network static beam adaptive adjustment method as described above are implemented.
[0052] The present application also provides a computer program product, including a computer program, which implements the steps of the above-mentioned network static beam adaptive adjustment method when executed by a processor.
[0053] The present application provides a method, device, equipment and storage medium for adaptively adjusting a network static beam. Compared with the prior art which is difficult to accurately balance the cell load, in the present application, after determining the initial beam parameters of the static beam corresponding to the MIMO antenna, the power sharing performance indicators of each cell corresponding to the static beam are collected to determine the first cell with a power sharing out record and the second cell with a power sharing in record; the horizontal beam width in the initial beam parameters of the first cell is increased to obtain the first horizontal beam width, and the horizontal beam width in the initial beam parameters of the second cell is reduced to obtain the second horizontal beam width; based on the first horizontal beam width and the second horizontal beam width, the user terminal is accessed. That is, in the present application, the power sharing performance between cells corresponding to different static beams is counted, and the beam width of the static beam in the Massive MIMO scenario is adjusted, that is, the horizontal beam width corresponding to the first cell with power sharing out (difficult to meet a large number of access requirements) is increased to access more users; the horizontal beam width corresponding to the static beam of the second cell with power sharing in (excess power) is reduced to access fewer users, that is, cells with different access requirements are load balanced. BRIEF DESCRIPTION OF THE DRAWINGS
[0054] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0055] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0056] Figure 1 This is a flow chart of the first embodiment of the network static beam adaptive adjustment method of the present application;
[0057] Figure 2 This is a flow chart of the second embodiment of the network static beam adaptive adjustment method of the present application;
[0058] Figure 3 A schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present application;
[0059] Figure 4 This is a schematic diagram of the first scenario involved in the network static beam adaptive adjustment method of the present application;
[0060] Figure 5 This is a schematic diagram of a second scenario involved in the network static beam adaptive adjustment method of the present application;
[0061] Figure 6 This is a schematic diagram of the third scenario involved in the network static beam adaptive adjustment method of the present application.
[0062] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0063] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0064] The present application embodiment provides a network static beam adaptive adjustment method. In the first embodiment of the network static beam adaptive adjustment method of the present application, refer to Figure 1 , the network static beam adaptive adjustment method includes:
[0065] Step S10, determining initial beam parameters of the MIMO antenna corresponding to the static beam;
[0066] Step S20, collecting the power sharing performance index of each cell corresponding to the static beam, and determining a first cell with a power sharing out record and a second cell with a power sharing in record;
[0067] Step S30, increasing the horizontal beam width in the initial beam parameters of the first cell to obtain a first horizontal beam width, and reducing the horizontal beam width in the initial beam parameters of the second cell to obtain a second horizontal beam width;
[0068] Step S40: accessing a user terminal based on the first horizontal beam width and the second horizontal beam width.
[0069] The specific steps are as follows:
[0070] Step S10, determining initial beam parameters of the MIMO antenna corresponding to the static beam;
[0071] In this embodiment, it should be noted that the network static beam adaptive adjustment method can be applied to a network static beam adaptive adjustment system, which is subordinate to the network static beam adaptive adjustment device.
[0072] In this embodiment, the application scenarios may be:
[0073] First, the cells corresponding to the static beams of the existing FDD network Massive MIMO sectors generally use fixed beam widths and normal direction angles. For unevenly distributed users, the loads of the cells corresponding to the static beams are often unbalanced, with some cells having high loads and some cells having low loads.
[0074] For example, the PRB (physical resource block) utilization rate of a cell corresponding to a Massive MIMO sector is more than 30% lower than that of cells corresponding to other beams.
[0075] Second, the cells corresponding to the static beams of the existing FDD network Massive MIMO sectors do not take into account the services requested by users, and cannot guarantee balanced throughput rates of the corresponding cells.
[0076] In this embodiment, in the Massive MIMO scenario during the evolution from FDD LTE to FDD NR, based on the power sharing performance statistics (associated with user distribution) between cells corresponding to the Massive MIMO static beam, the beam width and normal direction angle of the Massive MIMO static beam are adaptively adjusted, thereby ensuring cell load balancing, and the power sharing performance is associated with the cell user traffic, thereby ensuring the balance of the corresponding cell throughput rate.
[0077] It should be noted that Massive MIMO is an effective means to improve system capacity, that is, the LTE-FDD network provides the same bandwidth for uplink and downlink services, and the bandwidth occupied by data services uplink and downlink is about 1:4. Therefore, the congestion of the LTE FDD network downlink is the first to be highlighted. In order to solve the congestion of the LTE FDD network downlink, LTE FDD gradually evolves to NRFDD. During the evolution process, the FDD network gradually evolves from the current 2T2R (2Transmission-2Receive) to 4T4R (4Transmission-4Receive), 8T8R (8Transmission-8Receive) and even Massive MIMO (32Transmission-32Receive). Since the more antenna arrays there are, the narrower the beams that can be generated, the better isolation and interference control can be achieved. Therefore, the narrow beams formed based on MassiveMIMO beamforming can obtain multiplexing gains of various resources within the same geographical area.
[0078] Therefore, in this embodiment, the Massive MIMO sector scenario is converted into a Massive MIMO beam scenario.
[0079] In this embodiment, it should be noted that the Massive MIMO beamforming of the FDD network includes two modes:
[0080] First, Dynamic Dedicated Beam (DDB);
[0081] Specifically, user-level beamforming is implemented in the Massive MIMO cell to realize multi-user spatial division multiplexing. That is, at the same scheduling time, multiple users distributed in different locations are orthogonally paired to share the same RB (Resource Block, the smallest physical resource unit) resources to realize spatial division multiplexing and improve the overall cell capacity.
[0082] Second, static shared beam (SSB);
[0083] Specifically, static beam sharing is to control the soft splitting of the Massive MIMO sector into four cells (that is, to generate four static beams based on the Massive MIMO sector through software control), so as to achieve simultaneous scheduling of different cells at the same scheduling time and realize space division multiplexing, so as to achieve the purpose of improving the overall cell capacity.
[0084] Currently, network static beam adaptive adjustment is applicable to Massive MIMO static beam scenarios. In Massive MIMO static beam scenarios, four static beams are generated through software control. The beam diagram is as follows: Figure 4 As shown in the figure, in the FDD mode Massive MIMO static beam scenario, the following two settings are generally used:
[0085] First, a fixed beam width and normal direction angle are used, that is, in the FDD mode Massive MIMO static beam scenario, four static beams are generated through software control, similar to splitting into four cells, such as Figure 4 As shown, a normal is defined for each beam, namely, Beam 1, Beam 2, Beam 3, and Beam 4. The normals of the beams are defined as n1, n2, n3, and n4 respectively, and their corresponding normal angles are -44°, -15°, 15°, and 44° respectively. It should be noted that the normal direction angle (normal angle) of the Massive MIMO static beam is a positive number that deviates clockwise from the normal, or a negative number that deviates counterclockwise from the normal. The normal angle value range is -60° to 60°.
[0086] In addition, the angle between the normal lines of the static beams must be greater than 24° to control overlapping coverage, and the beam width of each cell can be adjusted according to the coverage requirements.
[0087] In this embodiment, the beam widths supported by the FDD mode Massive MIMO static beam scenario are 15°, 25°, 45°, 65°, and 90°. Since the existing FDD mode is based on the Massive MIMO sector, and the antenna beam width before the Massive MIMO sector is replaced is 65° (also called the horizontal half-power angle of the antenna), after the Massive MIMO sector is replaced with the Massive MIMO antenna (the more antenna arrays there are, the narrower the beam that can be generated, which can achieve better isolation and interference control), the beam width of the entire sector changes from 65° to 90°, that is, the beam widths of the four static beams in the sector are 25°, 25°, 25°, 25°, as shown in FIG. Figure 5 shown.
[0088] The beam width and horizontal angle of each static beam can be adjusted. It should be noted that during adjustment, the overall coverage range of the Massive MIMO static beam must meet the overall coverage requirements of the original sector and maximize the coverage gain in the normal direction of each beam of the Massive MIMO static beam. The normal of the static beam should be targeted at the UE (user terminal) as much as possible, so that the UE obtains the best signal to interference plus noise ratio (SINR), obtains the highest possible modulation mode, and ultimately obtains the highest throughput rate.
[0089] In this embodiment, the physical antenna AAU unit of the Massive MIMO sector can be adjusted as a whole, and the horizontal direction angle of each static beam is also changed accordingly after the adjustment (that is, the beam width and horizontal direction angle of each static beam can be adjusted to adapt to the UE distribution and traffic distribution of the entire sector in the Massive MIMO scenario).
[0090] Second, in this embodiment, the beam bandwidth and the normal horizontal direction angle of the static beam can also be calculated based on the number of users accessed by each static beam. A static beam with more access users uses a larger beam bandwidth, and correspondingly, a static beam with fewer access users uses a smaller beam bandwidth (large amount of data calculation).
[0091] In this embodiment, in addition to using a fixed beam width and normal direction angle, and overall adjusting the physical antenna AAU unit of the Massive MIMO sector, or calculating the beam width and normal horizontal direction angle of the static beam based on the number of users accessed by each static beam, various electrical performance indicators (power sharing performance indicators) supported by the Massive MIMO antenna are collected, and load balancing is achieved based on the power sharing performance indicators.
[0092] In this embodiment, overall, load balancing based on the power sharing performance index can be achieved in three progressive ways, as follows:
[0093] First, the horizontal beam width is adjusted through the power sharing performance index to achieve load balancing;
[0094] Second, after adjusting the horizontal beam width, if the load is still unbalanced, adjust the normal direction angle;
[0095] Third, after adjusting the normal direction angle, the lobe direction is also adjusted.
[0096] During the adjustment process, the allocated power can also be adjusted synchronously.
[0097] During the adjustment process, parameters such as the horizontal beam width are also adjusted based on the business busy status.
[0098] In this embodiment, the initial beam parameters of the static beam corresponding to the MIMO antenna are first determined, where the initial beam parameters may specifically include parameters such as the initial horizontal beam width (i.e., horizontal half power angle), the initial normal direction angle, the initial electrical downtilt angle, the initial AAU overall power, and each initially allocated power;
[0099] That is, in this embodiment, various electrical performance indicators supported by the Massive MIMO antenna are first collected, including (static beam) horizontal beam width (i.e., horizontal half-power angle), (static beam) normal direction angle, electrical downtilt angle, AAU overall power, and power allocated to each (static beam) and other parameters;
[0100] In this embodiment, the horizontal beam width and the vertical beam width may be set as shown in Table 1, and the electrical downtilt angle may be set as shown in Table 2. Based on Table 1, Table 2 may initially set the Massive MIMO horizontal beam width to SCENARIO_4 in Table 1, that is, the horizontal beam width is 25°, and the corresponding vertical beam width is 8°.
[0101]
[0102]
[0103] Table 1 Weights of horizontal and vertical beamwidths of Massive MIMO antennas
[0104] Electrical down tilt Adjustment range Adjust step size Tilt [-15°,15°] 1°
[0105] Table 2 Massive MIMO antenna electrical downtilt weights
[0106] Among them, the normal direction angle of the Massive MIMO sector is 0°, and its four static beams are Beam 1, Beam 2, Beam 3, and Beam 4. The normals of the beams are defined as: n1, n2, n3, and n4, and their corresponding normal angles are: -44°, -15°, 15°, and 44°, respectively.
[0107] In this embodiment, the overall power of the Massive MIMO antenna AAU unit and the power allocated to each static beam are also collected.
[0108] If the overall power of the Massive MIMO antenna AAU unit is 160W, the initial power allocation of the four static beams is 40W, 40W, 40W, and 40W;
[0109] Step S20, collecting the power sharing performance index of each cell corresponding to the static beam, and determining a first cell with a power sharing out record and a second cell with a power sharing in record;
[0110] In this embodiment, the power sharing performance index of each cell corresponding to the static beam is collected to determine a first cell having a power sharing out record and a second cell having a power sharing in record.
[0111] The power sharing of the cell corresponding to the static beam means that under the set conditions, the power is shared out of the cell (on the basis of meeting its own business needs), and the remaining power is shared with the power sharing in cell with higher load, so that the power sharing in cell can improve the carrier-to-interference ratio, obtain a higher modulation method, and improve the wireless throughput rate.
[0112] The step of determining a first cell having a power sharing out record and a second cell having a power sharing in record includes:
[0113] Step a1: if it is detected that the instantaneous PRB utilization rate of the cell network downlink is lower than the first utilization rate threshold, the corresponding cell is the first cell with a power sharing record;
[0114] Step a2: If it is detected that the instantaneous PRB utilization rate of the cell network downlink is higher than the second utilization rate threshold, the corresponding cell is the first cell with a power sharing record.
[0115] Specifically, the setting conditions for power sharing out of the cell are: the LTE downlink instantaneous PRB (PHYSICAL RESOURCEBLOCK) utilization is lower than a threshold T1 (first utilization threshold), where the number of TTIs for power sharing out of the cell (L.PwrShare.PwrOut.TTI.Num) refers to the number of TTIs for which the cell actually uses the shared out power. The setting conditions for power sharing in the cell are: the LTE downlink instantaneous PRB utilization exceeds a threshold T2 (second utilization threshold), where the number of TTIs for power sharing in the cell (L.PwrShare.PwrIn.TTI.Num) refers to the number of TTIs for which the cell actually uses the shared in power. When determining the shared entry cell, in addition to the LTE downlink instantaneous PRB utilization, the demodulation method and modulation method used in the downlink can also be referred to at the same time, so that the LTE downlink instantaneous PRB utilization exceeds T2, and the cell where the proportion of users using CRS demodulation (Cell Reference Signal, cell reference signal) and QPSK modulation (Quadrature Phase Shift Keying) in the downlink exceeds the threshold T3 (the third utilization threshold) is set as a power sharing entry cell.
[0116] In this embodiment, the cell power sharing out records are used to indicate that the cell has few access users and low load; the cell power sharing in records are used to indicate that the cell has many access users and high load.
[0117] Step S30, increasing the horizontal beam width in the initial beam parameters of the first cell to obtain a first horizontal beam width, and reducing the horizontal beam width in the initial beam parameters of the second cell to obtain a second horizontal beam width;
[0118] In this embodiment, by increasing the horizontal beam width of the power sharing corresponding to the cell out, more users are connected, and by reducing the horizontal beam width of the power sharing corresponding to the cell in, fewer users are connected.
[0119] Referring to Table 1, increasing the horizontal beam width in the initial beam parameters of the first cell may be: adjusting the horizontal beam width of the static beam of the corresponding cell that shares power from SCENARIO_4 to SCENARIO_3;
[0120] That is, the horizontal beam width of the cell is adjusted from 25° to 45°, and the vertical beam width remains unchanged at 8°;
[0121] Referring to Table 1, reducing the horizontal beam width in the initial beam parameters of the second cell may specifically be: adjusting the horizontal beam width of the static beam of the corresponding cell into which power is shared from SCENARIO_4 to SCENARIO_9;
[0122] That is, adjust the horizontal beam width of the cell from 25° to 15°, and adjust the vertical beam width from 8° to 17°;
[0123] Step S40: accessing a user terminal based on the first horizontal beam width and the second horizontal beam width.
[0124] After obtaining the first horizontal beam width and the second horizontal beam width, a user terminal (UE) is accessed.
[0125] In this embodiment, more users are connected by increasing the horizontal beam width of the power sharing corresponding cell outward; the horizontal beam width of the power sharing corresponding cell inward is reduced to reduce the number of connected users; the main lobe of the static beam is directed to more users, so that the users can obtain a better carrier-to-interference ratio.
[0126] The present application provides a method, device, equipment and storage medium for adaptively adjusting a network static beam. Compared with the prior art which is difficult to accurately balance the cell load, in the present application, after determining the initial beam parameters of the static beam corresponding to the MIMO antenna, the power sharing performance indicators of each cell corresponding to the static beam are collected to determine the first cell with a power sharing out record and the second cell with a power sharing in record; the horizontal beam width in the initial beam parameters of the first cell is increased to obtain the first horizontal beam width, and the horizontal beam width in the initial beam parameters of the second cell is reduced to obtain the second horizontal beam width; based on the first horizontal beam width and the second horizontal beam width, the user terminal is accessed. That is, in the present application, the power sharing performance between cells corresponding to different static beams is counted, and the beam width of the static beam in the Massive MIMO scenario is adjusted, that is, the horizontal beam width corresponding to the first cell with power sharing out (difficult to meet a large number of access requirements) is increased to access more users; the horizontal beam width corresponding to the static beam of the second cell with power sharing in (excess power) is reduced to access fewer users, that is, cells with different access requirements are load balanced.
[0127] Further, based on the first embodiment of the present application, another embodiment of the present application is provided. In this embodiment, after the step based on the first horizontal beam width and the first horizontal beam width, the method further includes:
[0128] Step S50, determining the number of times the power of the first cell is shared;
[0129] Step S60: If the number of times of sharing exceeds a preset number threshold, the normal direction angle in the initial beam parameters of the first cell is adjusted to the second cell, and the user terminal is connected.
[0130] In this embodiment, the number of times the power of the first cell is shared is determined. If the number of times the power is shared exceeds the preset number threshold, the normal direction angle in the initial beam parameter of the first cell is adjusted to the second cell, and the user terminal is connected. That is, if the horizontal beam width of the static beam corresponding to the cell C1 is increased, and the number of times the power is shared still exceeds the T0 threshold (the preset number threshold), the normal direction angle of the static beam corresponding to the cell is adjusted to the power sharing cell C2, and the normal direction angle of the static beam corresponding to the C1 cell and the C2 cell is reduced. Specifically, Figure 6 As shown, in the established rectangular coordinate system, the normal corresponding to cell C1 is n1, and the normal corresponding to cell C2 is n2; the normal corresponding to cell C1 is adjusted to n11, and n1 is deviated toward n2 by a step value S1, which is set to 5°, that is, n1 is adjusted to n11, and the direction angle is from -44° to -39°.
[0131] In this embodiment, the normal direction angle in the initial beam parameters of the first cell is adjusted to the second cell, and the user terminal is connected, so that more users can be connected to the power-shared first cell.
[0132] After the step of adjusting the normal direction angle in the initial beam parameters of the first cell to the second cell, the method includes:
[0133] Step S70, adjusting the normal direction angle in the initial beam parameters of the second cell to the opposite direction of the first cell, ensuring that the angle between the normal direction angles corresponding to the first cell and the second cell is greater than a preset normal angle, and accessing the user terminal.
[0134] In this embodiment, the normal direction angle of the static beams corresponding to the first cell and the second cell is reduced. If the normal direction angle of the first cell and the second cell is less than 24°, the normal direction angle of the second cell needs to be adjusted accordingly, and continue to turn in the opposite direction of the first cell, that is, the normal direction angle in the initial beam parameters of the second cell is adjusted to the opposite direction of the first cell, ensuring that the normal direction angle of the first cell and the second cell is greater than the preset normal angle, and the user terminal is connected.
[0135] In this embodiment, the number of times the power of the first cell is shared is determined; if the number of times the power is shared exceeds a preset number threshold, the normal direction angle in the initial beam parameters of the first cell is adjusted to the second cell, and the user terminal is connected. In this embodiment, the first cell with power sharing (which is difficult to meet a large number of access requirements) has multiple access users.
[0136] Further, based on the first embodiment and the second embodiment of the present application, another embodiment of the present application is provided. In this embodiment, after the step of determining a first cell having a power sharing out record and a second cell having a power sharing in record, the method further includes:
[0137] Step A1: reducing a first allocated power in an initial beam parameter of the first cell, and increasing a second allocated power in an initial beam parameter of the second cell;
[0138] Step A2: accessing the user terminal based on the first allocated power and the second allocated power.
[0139] Specifically, in this embodiment, if the overall power of the Massive MIMO antenna AAU unit is: 160W, that is, the power initially allocated to the four static beams is: 40W, 40W, 40W, 40W, then the allocated power of the second cell is increased, thereby, the allocated powers of C1, C2, C3, and C4 are adjusted to: 20W, 60W, 40W, 40W, and then, the user terminal is accessed based on the first allocated power and the second allocated power. Since the second cell is a shared access cell, that is, a high-load cell, increasing the power of the second cell can reduce the pressure on the second cell.
[0140] In this embodiment, the pressure on the second cell is reduced by reducing the first allocated power in the initial beam parameters of the first cell and increasing the second allocated power in the initial beam parameters of the second cell; and accessing the user terminal based on the first allocated power and the second allocated power.
[0141] Further, based on the first embodiment, the second embodiment and the third embodiment of the present application, another embodiment of the present application is provided. In this embodiment, after the step of accessing the user terminal based on the first horizontal beam width and the second horizontal beam width, the step further includes:
[0142] Step B1, counting the service busy status of user terminals in different time periods;
[0143] Step B2: orderly adjust the first horizontal beam width and the second horizontal beam width to match the busy service state.
[0144] In this embodiment, statistics are also kept on the busy service status of user terminals in different time periods, and the first horizontal beam width and the second horizontal beam width are adjusted in an orderly manner to match the busy service status. Specifically, since the amount of service initiated by users varies in different time periods, statistics on the power sharing output and power sharing input indicators of the cells corresponding to each static beam can be used to obtain the normal direction angle of the static beam and the adjustment direction of the horizontal beam width in different time periods, and then, the first horizontal beam width and the second horizontal beam width are adjusted in an orderly manner to match the busy service status.
[0145] Specifically, the step of orderly adjusting the first horizontal beam width and the second horizontal beam width to match the busy service state includes:
[0146] Step B1, determining the concentrated location of user terminals in a corresponding time period based on the busy service status;
[0147] Step B1: Based on the first horizontal beam width and the second horizontal beam width, adjust the main lobe of the static beam to point to the concentrated position.
[0148] In this embodiment, based on the busy service status, the concentrated location of user terminals in the corresponding time period is determined, and then based on the first horizontal beam width and the second horizontal beam width, the main lobe of the static beam is adjusted to point to the concentrated location. Specifically, based on the first horizontal beam width and the second horizontal beam width, the center position of the main lobe is determined, and based on the center position, the main lobe of the static beam is adjusted to point to the concentrated location, so that the user obtains a better signal-to-noise ratio, thereby obtaining a higher modulation method and improving the wireless throughput rate.
[0149] In this embodiment, statistics are collected on the busy state of user terminals in different time periods; the first horizontal beam width and the second horizontal beam width are adjusted in an orderly manner to match the busy state of the service. In this embodiment, the parameters are adjusted in an orderly manner to match the busy state of the service, so that the user obtains a better signal-to-noise ratio, thereby obtaining a higher modulation mode and improving the wireless throughput rate.
[0150] Reference Figure 3 , Figure 3 It is a schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present application.
[0151] like Figure 3 As shown, the network static beam adaptive adjustment device may include: a processor 1001, such as a CPU, a memory 1005, and a communication bus 1002. The communication bus 1002 is used to realize the connection and communication between the processor 1001 and the memory 1005. The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.
[0152] Optionally, the network static beam adaptive adjustment device may also include a rectangular user interface, a network interface, a camera, an RF (Radio Frequency) circuit, a sensor, an audio circuit, a WiFi module, etc. The rectangular user interface may include a display screen (Display), an input submodule such as a keyboard (Keyboard), and the optional rectangular user interface may also include a standard wired interface and a wireless interface. The network interface may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).
[0153] Those skilled in the art will understand that Figure 3The network static beam adaptive adjustment device structure shown in the figure does not constitute a limitation on the network static beam adaptive adjustment device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.
[0154] like Figure 3 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, and a network static beam adaptive adjustment program. The operating system is a program that manages and controls the hardware and software resources of the network static beam adaptive adjustment device, and supports the operation of the network static beam adaptive adjustment program and other software and / or programs. The network communication module is used to realize the communication between the components inside the memory 1005, and to communicate with other hardware and software in the network static beam adaptive adjustment system.
[0155] exist Figure 3 In the network static beam adaptive adjustment device shown, the processor 1001 is used to execute the network static beam adaptive adjustment program stored in the memory 1005 to implement the steps of any of the above-mentioned network static beam adaptive adjustment methods.
[0156] The specific implementation of the network static beam adaptive adjustment device of the present application is basically the same as the embodiments of the above-mentioned network static beam adaptive adjustment method, and will not be repeated here.
[0157] The present application also provides a network static beam adaptive adjustment device, the network static beam adaptive adjustment device comprising:
[0158] A first determination module is used to determine initial beam parameters of a static beam corresponding to a MIMO antenna;
[0159] A second determination module is used to collect the power sharing performance index of each cell corresponding to the static beam, and determine the first cell with a power sharing out record and the second cell with a power sharing in record;
[0160] A horizontal beam width acquisition module, used to increase the horizontal beam width in the initial beam parameters of the first cell to obtain a first horizontal beam width, and reduce the horizontal beam width in the initial beam parameters of the second cell to obtain a second horizontal beam width;
[0161] The first access module is used to access the user terminal based on the first horizontal beam width and the second horizontal beam width.
[0162] Optionally, the network static beam adaptive adjustment device further includes:
[0163] A third determining module is used to determine the number of times the first cell power is shared;
[0164] A steering adjustment module is used to steer the normal direction angle in the initial beam parameters of the first cell to the second cell and access the user terminal if the number of times the sharing exceeds a preset number threshold.
[0165] Optionally, the network static beam adaptive adjustment device further includes:
[0166] The ensuring module is used to adjust the normal direction angle in the initial beam parameters of the second cell to the opposite direction of the first cell, ensure that the angle between the normal direction angles corresponding to the first cell and the second cell is greater than a preset normal angle, and access the user terminal.
[0167] Optionally, the network static beam adaptive adjustment device further includes:
[0168] A power allocation module, configured to reduce a first allocated power in an initial beam parameter of the first cell, and increase a second allocated power in an initial beam parameter of the second cell;
[0169] The second access module is used to access the user terminal based on the first allocated power and the second allocated power.
[0170] Optionally, the network static beam adaptive adjustment device further includes:
[0171] A statistics module is used to count the service busy status of user terminals in different time periods;
[0172] An orderly adjustment module is used to adjust the first horizontal beam width and the second horizontal beam width in an orderly manner to match the busy service state.
[0173] Optionally, the orderly adjustment module includes:
[0174] A determination unit, configured to determine a concentrated location of user terminals in a corresponding time period based on the busy service state;
[0175] The pointing adjustment unit is used to adjust the main lobe of the static beam to point to the concentrated position based on the first horizontal beam width and the second horizontal beam width.
[0176] Optionally, the first determining module is configured to include:
[0177] A first detection unit, configured to detect that if the instantaneous PRB utilization rate of the cell network downlink is lower than a first utilization rate threshold, the corresponding cell is the first cell with a power sharing record;
[0178] The second detection unit is used to detect that if the instantaneous PRB utilization rate of the cell network downlink is higher than the second utilization rate threshold, the corresponding cell is the first cell with a power sharing record.
[0179] The specific implementation of the network static beam adaptive adjustment device of the present application is basically the same as the embodiments of the network static beam adaptive adjustment method described above, and will not be repeated here.
[0180] An embodiment of the present application provides a storage medium, and the storage medium stores one or more programs, and the one or more programs can also be executed by one or more processors to implement the steps of the above-mentioned network static beam adaptive adjustment method.
[0181] The specific implementation methods of the storage medium of the present application are basically the same as the embodiments of the above-mentioned network static beam adaptive adjustment method, and will not be repeated here.
[0182] The present application also provides a computer program product, including a computer program, which implements the steps of the above-mentioned network static beam adaptive adjustment method when executed by a processor.
[0183] The specific implementation of the computer program product of the present application is basically the same as the various embodiments of the above-mentioned network static beam adaptive adjustment method, and will not be repeated here.
[0184] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.
[0185] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.
[0186] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present invention.
[0187] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A network static beam adaptive adjustment method, characterized in that: The network static beam adaptive adjustment method comprises: Determine initial beam parameters of the MIMO antenna corresponding to the static beam; Collecting the power sharing performance index of each cell corresponding to the static beam, and determining a first cell having a power sharing out record and a second cell having a power sharing in record; Increasing the horizontal beam width in the initial beam parameters of the first cell to obtain a first horizontal beam width, and reducing the horizontal beam width in the initial beam parameters of the second cell to obtain a second horizontal beam width; A user terminal is accessed based on the first horizontal beam width and the second horizontal beam width.
2. The network static beam adaptive adjustment method according to claim 1, characterized in that: After the step based on the first horizontal beam width and the first horizontal beam width, the method further includes: Determine a number of times the first cell power is shared; If the number of times of sharing exceeds a preset number threshold, the normal direction angle in the initial beam parameters of the first cell is adjusted to the second cell, and the user terminal is connected.
3. The network static beam adaptive adjustment method according to claim 2, characterized in that: After the step of adjusting the normal direction angle in the initial beam parameters of the first cell to the second cell, the method includes: The normal direction angle in the initial beam parameters of the second cell is adjusted to the opposite direction of the first cell, ensuring that the angle between the normal direction angles corresponding to the first cell and the second cell is greater than the preset normal angle, and the user terminal is connected.
4. The network static beam adaptive adjustment method according to claim 1, characterized in that: After the step of determining a first cell having a power sharing out record and a second cell having a power sharing in record, the method further includes: reducing a first allocated power in an initial beam parameter of the first cell, and increasing a second allocated power in an initial beam parameter of the second cell; The user terminal is accessed based on the first allocated power and the second allocated power.
5. The network static beam adaptive adjustment method according to claim 1, characterized in that: After the step of accessing a user terminal based on the first horizontal beam width and the second horizontal beam width, the method further includes: Statistics on the service busy status of user terminals in different time periods; The first horizontal beam width and the second horizontal beam width are adjusted in an orderly manner to match the busy traffic state.
6. The network static beam adaptive adjustment method according to claim 5, characterized in that: The step of orderly adjusting the first horizontal beam width and the second horizontal beam width to match the busy traffic state comprises: Based on the busy state of the service, determining the concentrated location of the user terminals in the corresponding time period; Based on the first horizontal beam width and the second horizontal beam width, a main lobe of the static beam is adjusted to point to the concentrated position.
7. The network static beam adaptive adjustment method according to claim 1, characterized in that: The step of determining a first cell having a power sharing out record and a second cell having a power sharing in record comprises: If it is detected that the instantaneous PRB utilization rate of the cell network downlink is lower than the first utilization rate threshold, the corresponding cell is the first cell with the power sharing record; If it is detected that the instantaneous PRB utilization rate of the cell network downlink is higher than the second utilization rate threshold, the corresponding cell is the first cell with a power sharing record.
8. A network static beam adaptive adjustment device, characterized in that: The network static beam adaptive adjustment device comprises: A first determination module is used to determine initial beam parameters of a static beam corresponding to a MIMO antenna; A second determination module is used to collect the power sharing performance index of each cell corresponding to the static beam, and determine the first cell with a power sharing out record and the second cell with a power sharing in record; An acquisition module, configured to increase the horizontal beam width in the initial beam parameters of the first cell to obtain a first horizontal beam width, and reduce the horizontal beam width in the initial beam parameters of the second cell to obtain a second horizontal beam width; An access module is used to access a user terminal based on the first horizontal beam width and the second horizontal beam width.
9. A network static beam adaptive adjustment device, characterized in that: The network static beam adaptive adjustment device comprises: a memory, a processor, and a program stored in the memory for implementing the network static beam adaptive adjustment method. The memory is used to store a program for implementing a method for adaptively adjusting a network static beam; The processor is used to execute a program for implementing the network static beam adaptive adjustment method to implement the steps of the network static beam adaptive adjustment method as described in any one of claims 1 to 7.
10. A storage medium, characterized in that: The storage medium stores a program for implementing a network static beam adaptive adjustment method, and the program for implementing a network static beam adaptive adjustment method is executed by a processor to implement the steps of the network static beam adaptive adjustment method as described in any one of claims 1 to 7.
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