Dynamic sector distribution method and system for beam aggregation

Abstract

The invention relates to a dynamic sector distribution method and system for beam aggregation, and the method comprises the steps: determining a first terrain weight according to the terrain type of a to-be-covered sector, inputting the first terrain weight and a terrain area into a sector included angle formula to obtain a to-be-generated sector included angle, calculating the beam weights of all beams of the to-be-generated sector included angle, and transmitting the beam weight to a beam forming matrix, performing beam aggregation through the beam forming matrix, and realizing dynamic sector distribution based on beam aggregation. Therefore, a traditional fixed sector structure is replaced by a mode of dynamically generating the sector included angle, so that the obtained to-be-generated sector included angle is more practical, the accuracy and flexibility of the to-be-generated sector included angle are ensured, beam aggregation is performed based on the beam weights of all beams of the to-be-generated sector included angle in combination with the beam forming matrix, and the beam aggregation efficiency is improved. The multi-path interference is eliminated, continuous coverage of sectors can be realized, coverage blind areas are eliminated, the sector coverage capability is improved, and the user experience is optimized.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and in particular to a method and system for dynamic sector allocation of beam aggregation. Background Art

[0002] Traditional three-sector base stations basically adopt a 120° equal coverage method. The fixed sector architecture has problems such as low coverage flexibility, waste of resources, and coverage blind spots, which cannot meet user needs and affect user experience. Summary of the invention

[0003] The technical problem to be solved by the present invention is: the present invention provides a dynamic sector allocation method and system for beam aggregation, which improves the flexibility of sector coverage while solving the problems of resource waste and coverage blind spots, and optimizes user experience.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: In a first aspect, the present invention provides a method for dynamic sector allocation, comprising: The terrain type and terrain area of ​​the area to be covered are obtained, and a first terrain weight of the area to be covered is obtained according to the terrain type. The first terrain weight and the terrain area are input into a sector angle formula for calculation to obtain a sector angle to be generated. The sector angle formula is: ); k= ; Among them, a represents the angle of the sector to be generated, q i Represents the first terrain weight of terrain type i, A i represents the terrain area, θ max represents the maximum expansion angle of the mechanical antenna, k represents the balance factor, P Tx Indicates the base station transmission power, G ant represents the antenna gain, P ref Indicates the reference power; The beam weights of all beams of the sector angle to be generated are calculated, the beam weights are transferred to a beamforming matrix, beam aggregation is performed through the beamforming matrix, and dynamic sector allocation is achieved based on the beam aggregation.

[0005] The beneficial effects of the present invention are as follows: based on the terrain type and terrain area of ​​the area to be covered, combined with the base station transmission power, antenna gain and the maximum expansion angle of the mechanical antenna, the sector angle to be generated is obtained, and the traditional fixed sector structure is replaced by a dynamically generated sector angle, so that the obtained sector angle to be generated is more in line with reality, ensuring the accuracy and flexibility of the sector angle to be generated, and beam aggregation is performed based on the beam weights of all beams of the sector angle to be generated in combination with the beam shaping matrix, which can eliminate multipath interference while achieving continuous coverage of the sector, eliminate coverage blind spots, improve sector coverage capabilities, and optimize user experience.

[0006] Optionally, the inputting the first terrain weight and the terrain area into a sector angle formula for calculation to obtain the sector angle to be generated comprises: The future traffic demand level of the area to be covered is obtained, and the first terrain weight is updated according to the future traffic demand level and a weight update formula to obtain an updated first terrain weight, where the weight update formula is: ; Among them, Q i represents the updated first terrain weight of terrain type i, q i represents the first terrain weight, L represents the future flow demand level; The updated first terrain weight and the terrain area are input into the sector angle formula for calculation to obtain the sector angle to be generated.

[0007] According to the above description, when calculating the angle of the sector to be produced, the future traffic demand level of the area to be covered is combined for calculation, which can improve resource utilization and better meet the user's coverage needs and optimize the user experience.

[0008] Optionally, the calculating the beam weights of all beams of the sector angle to be generated includes: The beam weight corresponding to the sector angle to be generated is calculated according to the first terrain weight and the beam weight formula, wherein the beam weight formula is: ; Among them, bq i (t) represents the beam weight of the jth beam at time t, q i Indicates the first terrain weight of terrain type i, sin j (t) represents the signal-to-noise ratio of the jth beam at time t, and n represents the total number of beams.

[0009] According to the above description, the first terrain weight is combined when calculating the beam weight, that is, the beam weight of each beam is determined using the first terrain weight as terrain compensation, thereby improving the accuracy of the beam weight.

[0010] The implementing dynamic sector allocation based on the beam aggregation includes: The total field strength of the beam of the beam aggregation is calculated according to the beam weight and the total field strength formula, and the metric value of the beam aggregation is calculated by the metric formula, and the total field strength formula is: ; Among them, E_total(θ) represents the total field strength of the beam, E j (θ) represents the jth beam in the direction The field strength under i Represents the first terrain weight of terrain type i; The measurement formula is: ; Where H(t) represents the metric value of beam aggregation at time t, S los (f, t) represents the power spectral density of the direct signal at frequency f and time t, S Nlos (f, t) represents the power spectral density of the indirect signal at frequency f and time t, S total (f, t) represents the total power spectral density of the direct signal and the indirect signal at frequency f and time t, f1 represents the upper limit of the frequency, f2 represents the lower limit of the frequency, and df represents the integral variable; Determine whether the metric value is lower than the metric threshold; if the metric value is lower than the metric threshold, determine whether the total field strength of the beam is lower than the field strength threshold; if the total field strength of the beam is lower than the field strength threshold, trigger the power adjustment strategy to adjust the beam aggregation; if the total field strength of the beam is not lower than the field strength threshold, trigger the beam pointing switching strategy to adjust the beam aggregation; if the metric value is not lower than the metric threshold, implement dynamic sector allocation based on the beam aggregation.

[0011] According to the above description, it can be seen that whether to perform dynamic sector allocation with the current beam aggregation is determined based on the total beam field strength and measurement value of the beam aggregation, and different adjustment strategies are adopted for the total beam field strength in different situations, that is, not only the coverage intensity is taken into account but also the multipath interference is taken into account, thereby eliminating the coverage blind spots of the sector allocation and enhancing the effective coverage.

[0012] If the total field strength of the beam is lower than the field strength threshold, triggering a power adjustment strategy to adjust the beam aggregation further includes: The downtilt adjustment strategy is triggered to adjust the beam aggregation, the base station deployment altitude of the base station corresponding to the beam aggregation is obtained, and it is determined whether the base station deployment altitude is higher than the altitude threshold. If so, the compensation angle is calculated by the compensation formula, and the downtilt angle of the beam aggregation is added according to the compensation angle. The compensation formula is: ; Wherein, Δθ represents the compensation angle, Hb represents the base station deployment altitude, and δ represents the altitude threshold.

[0013] Optionally, the triggering a power adjustment strategy to adjust the beam aggregation includes: Calculate the difference between the total field strength of the beam and the field strength threshold, calculate the power growth step according to the difference and the step formula, and dynamically increase the power of the beam aggregation according to the power growth step based on the difference, and the step formula is: ; Among them, Δp (dB) represents the power increase step, E_total (θ) represents the total beam field strength, and β represents the field strength threshold.

[0014] According to the above description, when the total beam strength is lower than the field strength threshold, both the power adjustment strategy and the downtilt angle adjustment strategy can be adopted. The dual strategy approach improves the flexibility of adjustment and meets the needs of various scenarios.

[0015] Optionally, the triggering a beam pointing switching strategy to adjust the beam aggregation includes: Acquire the terrain elevation and historical multipath interference records of the base station corresponding to the beam aggregation, obtain a reflection source probability distribution map according to the terrain elevation, the historical multipath interference records and the terrain type in combination with an AR model, and select an area with a reflection probability higher than a first ratio from the reflection source probability distribution map as the main reflection source orientation; The beam direction angle of the main reflection source orientation is adjusted by avoiding the mirror angle of the main reflection source orientation. During the adjustment process, the priority condition is to avoid the mirror angle with the lowest metric value, and the constraint condition is that the adjusted sector angle to be generated does not exceed the angle threshold. The beam direction angle of the main reflection source orientation is adjusted according to the preset adjustment step as the minimum unit.

[0016] According to the above description, when the beam pointing switching strategy adjusts the beam direction angle of the main reflection source azimuth, the constraint condition is that the adjusted sector angle to be generated does not exceed the angle threshold, so as to achieve linkage with the sector angle to be generated, ensure the continuity of adjacent sector coverage, and take avoiding the mirror angle with the lowest metric value as a priority condition to improve the efficiency of adjustment.

[0017] Optionally, it also includes: The power consumption and PRB group of the beam aggregation are adjusted in real time through a power classification sleep strategy and a service priority strategy to achieve dynamic energy saving.

[0018] According to the above description, the power consumption and PRB group of beam aggregation are adjusted by power classification sleep strategy and service priority strategy to achieve fine and intelligent energy consumption control, overcoming the problem of a cliff-like drop in coverage capability caused by simply shutting down the RF channel in the traditional way.

[0019] In a second aspect, the present invention provides a dynamic sector allocation system for beam aggregation, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, it implements the dynamic sector allocation method for beam aggregation described in the first aspect.

[0020] Among them, the technical effect corresponding to the dynamic sector allocation system of beam aggregation provided by the second aspect refers to the relevant description of the dynamic sector allocation method of beam aggregation provided by the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A flowchart of a dynamic sector allocation method for beam aggregation provided in this embodiment; Figure 2 A schematic diagram of the overall process of a dynamic sector allocation method for beam aggregation provided in this embodiment; Figure 3 A schematic diagram of the structure of a dynamic sector allocation system for beam aggregation provided in this embodiment.

[0022] Description of Reference Numerals 1. A dynamic sector allocation system for beam aggregation; 2. Processor; 3. Memory. DETAILED DESCRIPTION

[0023] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0024] Embodiment 1 Please refer to Figure 1 to Figure 2 The present invention provides a method for dynamic sector allocation of beam aggregation, comprising the steps of: S1. Obtain the terrain type and terrain area of ​​the area to be covered, obtain a first terrain weight of the area to be covered according to the terrain type, input the first terrain weight and the terrain area into a sector angle formula for calculation, and obtain a sector angle to be generated, wherein the sector angle formula is: ); k= ; Among them, a represents the angle of the sector to be generated, q i Represents the first terrain weight of terrain type i, A i represents the terrain area, θ max represents the maximum expansion angle of the mechanical antenna, k represents the balance factor, P Tx Indicates the base station transmission power, G ant represents the antenna gain, P ref Indicates the reference power; In this embodiment, if Figure 2 As shown in FIG. 1 , according to the pre-established terrain classification rules and the LIDAR mapping data of the area to be covered, the terrain type and terrain area of ​​the area to be covered can be obtained, wherein the LIDAR mapping data is mainly the terrain data of 5 km around the base station in the area to be covered. The pre-established terrain classification rules are shown in Table 1, and a weight database corresponding to different terrain types is pre-established, so that the first terrain weight of the area to be covered is obtained from the weight database according to the terrain type of the area to be covered, and the first terrain weight and the terrain area are input into the sector angle formula for calculation. In the sector angle formula, the maximum expansion angle θ of the mechanical antenna is max Set according to the user density of the area to be covered. When the user density is greater than 10 households / km 2 When the mechanical antenna has a maximum expansion angle θ max Set to 40°, otherwise, when the user density is not greater than 10 households / km 2 When the mechanical antenna has a maximum expansion angle θ max Set to 30°, the reference power P in the balance factor k ref The value is taken as 10 watts to obtain the sector angle to be generated, wherein the first terrain weight in the weight database can be adjusted according to actual needs.

[0025] Table 1. Terrain classification rules

[0026] At this time, in step S1, the first terrain weight and the terrain area are input into the sector angle formula for calculation to obtain the sector angle to be generated, which includes: S11, obtaining the future traffic demand level of the area to be covered, and updating the first terrain weight according to the future traffic demand level and a weight update formula to obtain an updated first terrain weight, wherein the weight update formula is: ; Among them, Q irepresents the updated first terrain weight of terrain type i, q i represents the first terrain weight, L represents the future flow demand level; S12: Input the updated first terrain weight and the terrain area into the sector angle formula for calculation to obtain the sector angle to be generated.

[0027] In this embodiment, if Figure 2 As shown, the future traffic demand level of the area to be covered is obtained, wherein the future traffic demand level is predicted by a pre-constructed ResNet-50 model, and the construction of the ResNet-50 model is based on the historical traffic demand records of the area to be covered as samples. Regarding the division of future traffic demand levels, taking the terrain type of farmland as an example, it can be divided according to the busy farming season and the slack farming season, so as to update the first terrain weight, and further realize the update of the angle of the sector to be generated.

[0028] S2. Calculate beam weights of all beams of the sector angle to be generated, transfer the beam weights to a beamforming matrix, perform beam aggregation through the beamforming matrix, and implement dynamic sector allocation based on the beam aggregation.

[0029] In this embodiment, if Figure 2 As shown, the calculated beam weights of all beams of the sector angle to be generated are transferred to the beamforming matrix, and beam aggregation is performed based on the complex IQ data superposition algorithm and Wiener filter model of the beamforming matrix, so as to realize dynamic sector allocation based on beam aggregation.

[0030] At this time, the calculation of the beam weights of all beams of the sector angle to be generated in step S2 includes: S21. Calculate the beam weight corresponding to the sector angle to be generated according to the first terrain weight and the beam weight formula, wherein the beam weight formula is: ; Among them, bq j (t) represents the beam weight of the jth beam at time t, q i Indicates the first terrain weight of terrain type i, sin j (t) represents the signal-to-noise ratio of the jth beam at time t, and n represents the total number of beams.

[0031] In this embodiment, if Figure 2As shown, the beam weight corresponding to the sector angle to be generated is calculated according to the first terrain weight and the beam weight formula. According to the beam weight formula, the signal-to-noise ratio of the j-th beam at time t is divided by the sum of the signal-to-noise ratios of all beams at time t, and then multiplied by the first terrain weight corresponding to the terrain type of the area to be covered, that is, the first terrain weight is added to the calculation as terrain compensation, so as to obtain the corresponding beam weight. Of course, the selection of the first terrain weight may not be completely based on the original value. In special cases, such as when the terrain type is water area, in order to save energy, the first terrain weight can be directly set to 0 and substituted into the beam weight formula for calculation.

[0032] At this time, the step S2 of implementing dynamic sector allocation based on the beam aggregation includes: S22. Calculate the total field strength of the beam of the beam aggregation according to the beam weight and the total field strength formula, and calculate the metric value of the beam aggregation by a metric formula, wherein the total field strength formula is: ; Among them, E_total(θ) represents the total field strength of the beam, E j (θ) represents the jth beam in the direction The field strength under i Represents the first terrain weight of terrain type i; The measurement formula is: ; Where H(t) represents the metric value of beam aggregation at time t, S los (f, t) represents the power spectral density of the direct signal at frequency f and time t, S Nlos (f, t) represents the power spectral density of the indirect signal at frequency f and time t, S total (f, t) represents the total power spectral density of the direct signal and the indirect signal at frequency f and time t, f1 represents the upper limit of the frequency, f2 represents the lower limit of the frequency, and df represents the integral variable; S23. Determine whether the metric value is lower than the metric threshold. If the metric value is lower than the metric threshold, determine whether the total field strength of the beam is lower than the field strength threshold. If the total field strength of the beam is lower than the field strength threshold, trigger the power adjustment strategy to adjust the beam aggregation. If the total field strength of the beam is not lower than the field strength threshold, trigger the beam pointing switching strategy to adjust the beam aggregation. If the metric value is not lower than the metric threshold, implement dynamic sector allocation based on the beam aggregation.

[0033] In this embodiment, if Figure 2As shown, the total beam field strength of beam aggregation is calculated according to the beam weight and total field strength formula, and the measurement value of beam aggregation is calculated by the measurement formula. When the measurement value is not lower than the measurement threshold, it means that there is no serious multipath interference and no adjustment is required. Dynamic sector allocation can be implemented according to the current beam aggregation. On the contrary, when the measurement value is lower than the measurement threshold, it means that there is serious multipath interference, and further, when the measurement value is lower than the measurement threshold and the total beam field strength is lower than the field strength threshold, it means that there is a coverage blind spot. Therefore, the beam aggregation is adjusted by triggering the power adjustment strategy or the downtilt angle adjustment strategy. When the measurement value is lower than the measurement threshold and the total beam field strength is not lower than the field strength threshold, it means that there is channel interference. Therefore, the beam aggregation is adjusted by triggering the beam pointing switching strategy.

[0034] At this time, if the total field strength of the beam is lower than the field strength threshold in step S23, triggering the power adjustment strategy to adjust the beam aggregation also includes: S231, triggering a downtilt adjustment strategy to adjust the beam aggregation, obtaining a base station deployment altitude of a base station corresponding to the beam aggregation, determining whether the base station deployment altitude is higher than an altitude threshold, and if so, calculating a compensation angle through a compensation formula, and adding a downtilt angle of the beam aggregation according to the compensation angle, wherein the compensation formula is: ; Wherein, Δθ represents the compensation angle, Hb represents the base station deployment altitude, and δ represents the altitude threshold.

[0035] At this time, the triggering of the power adjustment strategy to adjust the beam aggregation in step S23 includes: S232, calculating the difference between the total field strength of the beam and the field strength threshold, calculating the power increase step according to the difference and the step length formula, and dynamically increasing the power of the beam aggregation according to the power increase step length based on the difference, and the step length formula is: ; Among them, Δp (dB) represents the power increase step, E_total (θ) represents the total beam field strength, and β represents the field strength threshold.

[0036] In this embodiment, if Figure 2As shown, when the power adjustment strategy is triggered to adjust the beam aggregation, the difference between the total field strength of the beam and the field strength threshold is calculated, and the power growth step is calculated based on the difference. The power of the beam aggregation is dynamically increased according to the power growth step based on the difference. When the downtilt angle adjustment strategy is triggered to adjust the beam aggregation, if the base station deployment altitude of the base station corresponding to the beam aggregation is higher than the altitude threshold, the compensation angle is calculated by the compensation formula, and the downtilt angle of the beam aggregation is supplemented with the compensation angle, where the measurement threshold is 0.3, the field strength threshold is -105dBm, and the altitude threshold is 50 meters.

[0037] At this time, the triggering of the beam pointing switching strategy to adjust the beam aggregation in step S23 includes: S233, obtaining the terrain elevation and historical multipath interference records of the base station corresponding to the beam aggregation, obtaining a reflection source probability distribution map according to the terrain elevation, the historical multipath interference records and the terrain type in combination with an AR model, and selecting an area with a reflection probability higher than a first ratio from the reflection source probability distribution map as the main reflection source orientation; S234. The beam direction angle of the main reflection source orientation is adjusted by avoiding the mirror angle of the main reflection source orientation. During the adjustment process, avoiding the mirror angle with the lowest metric value is prioritized, and the adjusted sector angle to be generated does not exceed the angle threshold as a constraint. The beam direction angle of the main reflection source orientation is adjusted according to a preset adjustment step as the minimum unit.

[0038] In this embodiment, if Figure 2 As shown in FIG. 1 , when the beam pointing switching strategy is triggered to adjust the beam aggregation, the reflection source probability distribution map is obtained according to the terrain elevation, historical multipath interference record, and terrain type of the base station corresponding to the beam aggregation, and the AR model is combined. The area with a reflection probability higher than the first ratio is selected from the reflection source probability distribution map as the main reflection source orientation, wherein the first ratio is 70%, that is, the area with a reflection probability higher than 70% is selected from the reflection source probability distribution map as the main reflection source orientation, and the beam direction angle of the main reflection source orientation is adjusted by avoiding the mirror angle of the main reflection source orientation. Adjustment is performed, wherein the mirror angle of the main reflection source azimuth = the beam direction angle of the main reflection source azimuth + 180°. During the adjustment process, the adjusted sector angle to be generated is constrained to not exceed the angle threshold, wherein the angle threshold is 140°. Avoiding the mirror angle with the lowest metric value is a priority condition and adjusting the beam direction angle of the main reflection source azimuth according to a preset adjustment step as the minimum unit, wherein the preset adjustment step is 5°. When there are multiple main reflection source azimuths, the main reflection source azimuth that has the greatest impact on the metric value is preferentially selected for adjustment.

[0039] In this embodiment, after dynamic sector allocation is implemented based on beam aggregation, intelligent energy-saving regulation is also performed, as follows: The power consumption and PRB group of the beam aggregation are adjusted in real time through a power classification sleep strategy and a service priority strategy to achieve dynamic energy saving.

[0040] In this embodiment, the adjustment rules of the power-grading sleep strategy are shown in Table 2, that is, when the current time belongs to the busy farming season, the full-power working mode is adopted, and the power consumption is controlled to 650W; when the current time belongs to the low-traffic period at night, the half-power working mode is adopted, and the power consumption is controlled to 320W; when it is monitored that it is not the busy farming season and no user is online for more than 1 hour, the sleep working mode is adopted, and the power consumption is controlled to 80W; when it is monitored that it is not the busy farming season and there are no active users for five consecutive minutes, the deep sleep working mode is adopted, and the power consumption is controlled to 0W, that is, the corresponding beam radio frequency is turned off.

[0041] Table 2. Adjustment rules for power classification sleep strategy

[0042] In this embodiment, the adjustment rules of the service priority strategy are shown in Table 3, that is, when the service type is agricultural machinery remote operation, the priority is level 1, the PRB group allocation ratio of beam aggregation is adjusted to 40%, and the beam width is adjusted to 10°. When the service type is video monitoring, the priority is level 2, the PRB group allocation ratio of beam aggregation is adjusted to 30%, and the beam width is adjusted to 20°. When the service type is environmental sensor, the priority is level 3, the PRB group allocation ratio of beam aggregation is adjusted to 30%, and the beam width is adjusted to 130°. When the service type increases, the corresponding PRB group can be calculated according to the PRB group number formula, and the PRB group allocation ratio is calculated in combination with the set upper limit of the ratio, where the PRB group number formula is: Number of PRB groups = total number of PRB groups e(-0.5 (priority -1)); Table 3. Adjustment rules for business priority strategy

[0043] Embodiment 2 Please refer to Figure 3 The present invention provides a dynamic sector allocation system 1 for beam aggregation, comprising a memory 3, a processor 2, and a computer program stored in the memory 3 and executable on the processor 2, wherein the processor 2 implements the steps in the first embodiment when executing the computer program.

[0044] Since the system / device described in the above embodiments of the present invention is a system / device used to implement the method of the above embodiments of the present invention, a person skilled in the art can understand the specific structure and deformation of the system / device based on the method described in the above embodiments of the present invention, and thus will not be described in detail here. All systems / devices used in the method of the above embodiments of the present invention belong to the scope of protection of the present invention.

[0045] It should be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0046] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present invention. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions.

[0047] It should be noted that in the claims, any reference numerals placed between brackets shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention may be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In the claims enumerating several means, several of these means may be embodied by the same hardware. The use of the words first, second, third, etc., is for convenience of expression only and does not indicate any order. These words may be understood as part of the component name.

[0048] In addition, it should be noted that, in the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0049] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments after knowing the basic creative concept. Therefore, the claims should be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0050] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention should also include these modifications and variations.

Claims

1. A method for dynamic sector allocation of beam aggregation, characterized in that: include: The terrain type and terrain area of ​​the area to be covered are obtained, and a first terrain weight of the area to be covered is obtained according to the terrain type. The first terrain weight and the terrain area are input into a sector angle formula for calculation to obtain a sector angle to be generated. The sector angle formula is: ）； k= ； Among them, a represents the angle of the sector to be generated, q i Represents the first terrain weight of terrain type i, A i represents the terrain area, θ max represents the maximum expansion angle of the mechanical antenna, k represents the balance factor, P Tx Indicates the base station transmission power, G ant represents the antenna gain, P ref Indicates the reference power; The beam weights of all beams of the sector angle to be generated are calculated, the beam weights are transferred to a beamforming matrix, beam aggregation is performed through the beamforming matrix, and dynamic sector allocation is achieved based on the beam aggregation.

2. The method for dynamic sector allocation of beam aggregation according to claim 1, characterized in that: The step of inputting the first terrain weight and the terrain area into a sector angle formula for calculation to obtain the sector angle to be generated comprises: The future traffic demand level of the area to be covered is obtained, and the first terrain weight is updated according to the future traffic demand level and a weight update formula to obtain an updated first terrain weight, where the weight update formula is: ； Among them, Q i represents the updated first terrain weight of terrain type i, q i represents the first terrain weight, L represents the future flow demand level; The updated first terrain weight and the terrain area are input into the sector angle formula for calculation to obtain the sector angle to be generated.

3. The method for dynamic sector allocation of beam aggregation according to claim 1, characterized in that: The calculating of the beam weights of all beams of the to-be-generated sector angle comprises: The beam weight corresponding to the sector angle to be generated is calculated according to the first terrain weight and the beam weight formula, wherein the beam weight formula is: ； Among them, bq j (t) represents the beam weight of the jth beam at time t, q i Indicates the first terrain weight of terrain type i, sin j (t) represents the signal-to-noise ratio of the jth beam at time t, and n represents the total number of beams.

4. The method for dynamic sector allocation of beam aggregation according to claim 1, characterized in that: The implementing dynamic sector allocation based on the beam aggregation includes: The total field strength of the beam of the beam aggregation is calculated according to the beam weight and the total field strength formula, and the metric value of the beam aggregation is calculated by the metric formula, and the total field strength formula is: ； Among them, E_total(θ) represents the total field strength of the beam, E j (θ) represents the jth beam in the direction The field strength under i Represents the first terrain weight of terrain type i; The measurement formula is: ； Where H(t) represents the metric value of beam aggregation at time t, S los (f, t) represents the power spectral density of the direct signal at frequency f and time t, S Nlos (f, t) represents the power spectral density of the indirect signal at frequency f and time t, S total (f, t) represents the total power spectral density of the direct signal and the indirect signal at frequency f and time t, f1 represents the upper limit of the frequency, f2 represents the lower limit of the frequency, and df represents the integral variable; Determine whether the metric value is lower than the metric threshold; if the metric value is lower than the metric threshold, determine whether the total field strength of the beam is lower than the field strength threshold; if the total field strength of the beam is lower than the field strength threshold, trigger the power adjustment strategy to adjust the beam aggregation; if the total field strength of the beam is not lower than the field strength threshold, trigger the beam pointing switching strategy to adjust the beam aggregation; if the metric value is not lower than the metric threshold, implement dynamic sector allocation based on the beam aggregation.

5. The method for dynamic sector allocation of beam aggregation according to claim 4, characterized in that: If the total field strength of the beam is lower than the field strength threshold, triggering a power adjustment strategy to adjust the beam aggregation further includes: The downtilt adjustment strategy is triggered to adjust the beam aggregation, the base station deployment altitude of the base station corresponding to the beam aggregation is obtained, and it is determined whether the base station deployment altitude is higher than the altitude threshold. If so, the compensation angle is calculated by the compensation formula, and the downtilt angle of the beam aggregation is added according to the compensation angle. The compensation formula is: ； Wherein, Δθ represents the compensation angle, Hb represents the base station deployment altitude, and δ represents the altitude threshold.

6. The method for dynamic sector allocation of beam aggregation according to claim 4, characterized in that: The triggering of the power adjustment strategy to adjust the beam aggregation includes: Calculate the difference between the total field strength of the beam and the field strength threshold, calculate the power growth step according to the difference and the step formula, and dynamically increase the power of the beam aggregation according to the power growth step based on the difference, and the step formula is: ； Among them, Δp (dB) represents the power increase step, E_total (θ) represents the total beam field strength, and β represents the field strength threshold.

7. The method for dynamic sector allocation of beam aggregation according to claim 4, characterized in that: The triggering of the beam pointing switching strategy to adjust the beam aggregation includes: Acquire the terrain elevation and historical multipath interference records of the base station corresponding to the beam aggregation, obtain a reflection source probability distribution map according to the terrain elevation, the historical multipath interference records and the terrain type in combination with an AR model, and select an area with a reflection probability higher than a first ratio from the reflection source probability distribution map as the main reflection source orientation; The beam direction angle of the main reflection source orientation is adjusted by avoiding the mirror angle of the main reflection source orientation. During the adjustment process, the priority condition is to avoid the mirror angle with the lowest metric value, and the constraint condition is that the adjusted sector angle to be generated does not exceed the angle threshold. The beam direction angle of the main reflection source orientation is adjusted according to the preset adjustment step as the minimum unit.

8. The method for dynamic sector allocation of beam aggregation according to claim 1, characterized in that: Also includes: The power consumption and PRB group of the beam aggregation are adjusted in real time through a power classification sleep strategy and a service priority strategy to achieve dynamic energy saving.

9. A dynamic sector allocation system for beam aggregation, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 8 is implemented.

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