A Dynamic Sector Allocation Method and System for Beam Aggregation

Abstract

The present invention relates to a method and system for dynamic sector allocation of beam aggregation. Among them, the method determines a first terrain weight according to the terrain type of the sector to be covered, inputs the first terrain weight and the terrain area into the sector included angle formula to obtain the included angle of the sector to be generated, calculates the beam weights of all beams of the included angle of the sector to be generated, transfers the beam weights to the beamforming matrix, performs beam aggregation through the beamforming matrix, and realizes dynamic sector allocation based on beam aggregation. Thus, the present invention replaces the traditional fixed sector structure with the way of dynamically generating the included angle of the sector, making the obtained included angle of the sector to be generated more in line with the actual situation, ensuring the accuracy and flexibility of the included angle of the sector to be generated. Based on the beam weights of all beams of the included angle of the sector to be generated and combined with the beamforming matrix for beam aggregation, it can eliminate multipath interference while realizing continuous coverage of the sector, eliminate coverage blind spots, improve the sector coverage ability, and optimize the user experience.

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-division coverage method. The fixed sector architecture has problems such as low coverage flexibility, resource waste, 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 method and system for dynamic sector allocation of beam aggregation, which improves the flexibility of sector coverage while solving the problems of resource waste and coverage blind spots, and optimizes the user experience.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] In a first aspect, the present invention provides a method for dynamic sector allocation, including:

[0006] Obtain the terrain type and terrain area of the area to be covered, obtain the first terrain weight of the area to be covered according to the terrain type, input the first terrain weight and the terrain area into the sector angle formula for calculation to obtain the sector angle to be generated. The sector angle formula is:

[0007] );

[0008] k = ;

[0009] where a represents the sector angle 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 represents the base station transmission power, G ant represents the antenna gain, and P ref represents the reference power;

[0010] Calculate the beam weights of all beams of the sector angle to be generated, transfer the beam weights to the beamforming matrix, perform beam aggregation through the beamforming matrix, and realize dynamic sector allocation based on the beam aggregation.

[0011] 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 included angle of the sector to be generated is obtained. By dynamically generating the included angle of the sector instead of the traditional fixed sector structure, the obtained included angle of the sector to be generated is more in line with the actual situation, ensuring the accuracy and flexibility of the included angle of the sector to be generated. Based on the beam weights of all beams of the included angle of the sector to be generated, beam aggregation is performed in combination with the beamforming matrix, which can eliminate multipath interference while achieving continuous coverage of the sector, eliminate coverage blind spots, improve the sector coverage ability, and optimize the user experience.

[0012] Optionally, the calculating the included angle of the sector to be generated by inputting the first terrain weight and the terrain area into the sector included angle formula includes:

[0013] Obtain the future traffic demand level of the area to be covered, and update the first terrain weight according to the future traffic demand level and the weight update formula to obtain the updated first terrain weight. The weight update formula is:

[0014] ;

[0015] Wherein, Q i represents the updated first terrain weight with terrain type i, q i represents the first terrain weight, and L represents the future traffic demand level;

[0016] Input the updated first terrain weight and the terrain area into the sector included angle formula for calculation to obtain the included angle of the sector to be generated.

[0017] According to the above description, it can be seen that when calculating the included angle of the sector to be produced, calculation is combined with the future traffic demand level of the area to be covered, which can improve the resource utilization rate while better meeting the coverage requirements of users and optimizing the user experience.

[0018] Optionally, the calculating the beam weights of all beams of the included angle of the sector to be generated includes:

[0019] Calculate the beam weights corresponding to the included angle of the sector to be generated according to the first terrain weight and the beam weight formula. The beam weight formula is:

[0020] ;

[0021] Wherein, bq i (t) represents the beam weight of the jth beam at time t, q i represents the first terrain weight with 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.

[0022] As described above, the first terrain weight is combined when calculating the beam weights, that is, the beam weights of each beam are determined with the first terrain weight as the terrain compensation, improving the accuracy of the beam weights.

[0023] The implementation of dynamic sector allocation based on the beam aggregation includes:

[0024] Calculate the total beam field strength of the beam aggregation according to the beam weight and the total field strength formula, and at the same time calculate the metric value of the beam aggregation through the metric formula. The total field strength formula is:

[0025] ;

[0026] where E_total(θ) represents the total beam field strength, E j (θ) represents the field strength of the j-th beam in the direction below, q i represents the first terrain weight with the terrain type of i;

[0027] The metric formula is:

[0028] ;

[0029] where H(t) represents the metric value of the 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 non-direct signal at frequency f and time t, S total (f,t) represents the total power spectral density of the direct signal and the non-direct 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 integration variable;

[0030] Judge whether the metric value is lower than the metric threshold. If the metric value is lower than the metric threshold, then judge whether the total beam field strength is lower than the field strength threshold. If the total beam field strength is lower than the field strength threshold, trigger the power adjustment strategy to adjust the beam aggregation. If the total beam field strength 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.

[0031] As described above, it is determined whether to perform dynamic sector allocation with the current beam aggregation based on the total beam field strength and the metric value of the beam aggregation, and different adjustment strategies are adopted for different cases of the total beam field strength, that is, not only the coverage intensity is considered but also the multipath interference is considered, eliminating the coverage blind area of the sector allocation while enhancing the effective coverage.

[0032] If the total field strength of the beam is lower than the field strength threshold, triggering the power adjustment strategy to adjust the beam aggregation further includes:

[0033] Triggering the down-tilt adjustment strategy to adjust the beam aggregation, obtaining the base station deployment altitude of the base station corresponding to the beam aggregation, determining whether the base station deployment altitude is higher than the altitude threshold, and if so, calculating a compensation angle through a compensation formula, and adding the down-tilt angle of the beam aggregation according to the compensation angle. The compensation formula is:

[0034] ;

[0035] where, Δθ represents the compensation angle, Hb represents the base station deployment altitude, and δ represents the altitude threshold.

[0036] Optionally, triggering the power adjustment strategy to adjust the beam aggregation includes:

[0037] 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 formula, and dynamically increasing the power of the beam aggregation according to the power increase step based on the difference. The step formula is:

[0038] ;

[0039] where, Δp(dB) represents the power increase step, E_total(θ) represents the total field strength of the beam, and β represents the field strength threshold.

[0040] According to the above description, for the case where the total field strength of the beam is lower than the field strength threshold, either the power adjustment strategy or the down-tilt adjustment strategy can be adopted. The dual-strategy method improves the flexibility of adjustment and meets the diverse scenario requirements.

[0041] Optionally, triggering the beam pointing switching strategy to adjust the beam aggregation includes:

[0042] 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 by combining the terrain elevation, the historical multipath interference records and the terrain type with the AR model, and selecting the area with a reflection probability higher than the first ratio from the reflection source probability distribution map as the main reflection source azimuth;

[0043] 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.

[0044] 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.

[0045] Optionally, it also includes:

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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

[0050] Figure 1 A flowchart of a dynamic sector allocation method for beam aggregation provided in this embodiment;

[0051] Figure 2 A schematic diagram of the overall process of a dynamic sector allocation method for beam aggregation provided in this embodiment;

[0052] Figure 3 A schematic diagram of the structure of a dynamic sector allocation system for beam aggregation provided in this embodiment.

[0053] Description of Reference Numerals

[0054] 1. A dynamic sector allocation system for beam aggregation;

[0055] 2. A processor;

[0056] 3. A memory. Detailed implementation manner

[0057] To better understand the above technical solution, the exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and the scope of the present invention can be fully conveyed to those skilled in the art.

[0058] Embodiment 1

[0059] Please refer to Figures 1 to 2 , the present invention provides a dynamic sector allocation method for beam aggregation, including the steps of:

[0060] S1. Obtain the terrain type and terrain area of the area to be covered, obtain the first terrain weight of the area to be covered according to the terrain type, input the first terrain weight and the terrain area into the sector angle formula for calculation to obtain the sector angle to be generated, and the sector angle formula is:

[0061] );

[0062] k = ;

[0063] where a represents the sector angle to be generated, q i represents the first terrain weight of the 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 represents the base station transmission power, G ant represents the antenna gain, P ref represents the reference power;

[0064] In this embodiment, as Figure 2As shown, according to the pre-established terrain classification rules and the LIDAR survey data of the area to be covered, the terrain type and terrain area of the area to be covered can be obtained. The LIDAR survey data is mainly the terrain data within 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-constructed. Thus, 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. 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 max is set according to the user density in the area to be covered. When the user density is greater than 10 households / km 2 , the maximum expansion angle θ of the mechanical antenna max is set to 40°. Conversely, when the user density is not greater than 10 households / km 2 , the maximum expansion angle θ of the mechanical antenna max is set to 30°. The reference power P in the balance factor k ref takes a value of 10 watts, so as to obtain the sector angle to be generated. The first terrain weight in the weight database can be adjusted according to actual needs.

[0065] Table 1. Terrain Classification Rule Table

[0066]

[0067] At this time, the calculation of inputting the first terrain weight and the terrain area into the sector angle formula in step S1 to obtain the sector angle to be generated includes:

[0068] S11. Obtain the future traffic demand level of the area to be covered, and update the first terrain weight according to the future traffic demand level and the weight update formula to obtain the updated first terrain weight. The weight update formula is:

[0069] ;

[0070] where Q i represents the updated first terrain weight of terrain type i, q i represents the first terrain weight, and L represents the future traffic demand level;

[0071] 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.

[0072] In this embodiment, as Figure 2As shown, obtain the future traffic demand level of the area to be covered, where the future traffic demand level is predicted by a pre-constructed ResNet-50 model, and the ResNet-50 model is constructed using the historical traffic demand records of the area to be covered as samples. Regarding the division of the future traffic demand level, taking the terrain type of farmland as an example, it can be divided according to the busy farming period and the off-farming period, so as to update the first terrain weight and further realize the update of the angle of the sector to be generated.

[0073] S2. Calculate the beam weights of all beams of the angle of the sector to be generated, transfer the beam weights to the beamforming matrix, perform beam aggregation through the beamforming matrix, and realize dynamic sector allocation based on the beam aggregation.

[0074] In this embodiment, as Figure 2 shown, transfer the calculated beam weights of all beams of the angle of the sector to be generated to the beamforming matrix, perform beam aggregation based on the complex IQ data superposition algorithm and Wiener filtering model of the beamforming matrix, so as to realize dynamic sector allocation based on the beam aggregation.

[0075] At this time, the calculation of the beam weights of all beams of the angle of the sector to be generated in step S2 includes:

[0076] S21. Calculate the beam weight corresponding to the angle of the sector to be generated according to the first terrain weight and the beam weight formula. The beam weight formula is:

[0077] ;

[0078] where, bq j (t) represents the beam weight of the j-th beam at time t, q i represents the first terrain weight of the terrain type i, sin j (t) represents the signal-to-noise ratio of the j-th beam at time t, and n represents the total number of beams.

[0079] In this embodiment, as Figure 2 shown, calculate the beam weight corresponding to the angle of the sector to be generated according to the first terrain weight and the beam weight formula. According to the beam weight formula, by dividing the signal-to-noise ratio of the j-th beam at time t by the sum of the signal-to-noise ratios of all beams at time t, and then multiplying by the first terrain weight corresponding to the terrain type of the area to be covered, that is, adding the first terrain weight as terrain compensation to the calculation, so as to obtain the corresponding beam weight. Of course, the selection of the first terrain weight may not completely follow the original value. In the face of special situations, 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.

[0080] At this time, the dynamic sector allocation based on the beam aggregation described in step S2 includes:

[0081] S22. Calculate the total beam field strength of the beam aggregation according to the beam weight and the total field strength formula, and at the same time calculate the metric value of the beam aggregation through the metric formula. The total field strength formula is:

[0082] ;

[0083] where E_total(θ) represents the total beam field strength, and E j (θ) represents the field strength of the jth beam in the direction θ, and q i represents the first terrain weight with the terrain type of i;

[0084] The metric formula is:

[0085] ;

[0086] where H(t) represents the metric value of the 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 non-direct signal at frequency f and time t, S total (f,t) represents the total power spectral density of the direct signal and the non-direct 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 integration variable;

[0087] S23. Determine whether the metric value is lower than the metric threshold. If the metric value is lower than the metric threshold, then determine whether the total beam field strength is lower than the field strength threshold. If the total beam field strength is lower than the field strength threshold, trigger a power adjustment strategy to adjust the beam aggregation. If the total beam field strength is not lower than the field strength threshold, trigger a 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.

[0088] In this embodiment, as Figure 2As shown, the total beam field strength of beam aggregation is calculated according to the beam weight and the total field strength formula, and at the same time, the metric value of beam aggregation is calculated through the metric formula. When the metric value is not lower than the metric threshold, it indicates that there is no serious multipath interference and no adjustment is required. The dynamic sector allocation can be achieved according to the current beam aggregation. On the contrary, when the metric value is lower than the metric threshold, it indicates that there is serious multipath interference. Furthermore, when the metric value is lower than the metric threshold and the total beam field strength is lower than the field strength threshold, it indicates that there is a coverage blind area. Therefore, the beam aggregation is adjusted by triggering the power adjustment strategy or the downtilt adjustment strategy. When the metric value is lower than the metric threshold and the total beam field strength is not lower than the field strength threshold, it indicates that there is channel interference. Therefore, the beam aggregation is adjusted by triggering the beam pointing switching strategy.

[0089] At this time, the step of triggering the power adjustment strategy to adjust the beam aggregation when the total beam field strength is lower than the field strength threshold in step S23 further includes:

[0090] S231. Trigger the downtilt adjustment strategy to adjust the beam aggregation, obtain the base station deployment altitude of the base station corresponding to the beam aggregation, and determine whether the base station deployment altitude is higher than the altitude threshold. If so, calculate the compensation angle through the compensation formula, and append the downtilt angle of the beam aggregation according to the compensation angle. The compensation formula is:

[0091] ;

[0092] where, Δθ represents the compensation angle, Hb represents the base station deployment altitude, and δ represents the altitude threshold.

[0093] At this time, the step of triggering the power adjustment strategy to adjust the beam aggregation in step S23 includes:

[0094] S232. Calculate the difference between the total beam field strength and the field strength threshold, calculate the power increase step according to the difference and the step formula, and dynamically increase the power of the beam aggregation according to the power increase step based on the difference. The step formula is:

[0095] ;

[0096] where, Δp(dB) represents the power increase step, E_total(θ) represents the total beam field strength, and β represents the field strength threshold.

[0097] In this embodiment, as Figure 2As shown, when the trigger power adjustment strategy adjusts beam aggregation, by calculating the difference between the total beam field strength and the field strength threshold, the power increase step size is calculated based on the difference. Based on the difference, the power of beam aggregation is dynamically increased according to the power increase step size. When the trigger down-tilt adjustment strategy adjusts 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 through the compensation formula, and the down-tilt angle of the beam aggregation is added with this compensation angle. Among them, the metric threshold is 0.3, the field strength threshold is -105 dBm, and the altitude threshold is 50 meters.

[0098] At this time, the trigger beam pointing switching strategy to adjust the beam aggregation described in step S23 includes:

[0099] S233. Obtain the terrain elevation and historical multipath interference records of the base station corresponding to the beam aggregation. Combine the terrain elevation, the historical multipath interference records, and the terrain type with the AR model to obtain a reflection source probability distribution map. Select the area with a reflection probability higher than the first ratio from the reflection source probability distribution map as the main reflection source azimuth;

[0100] S234. Adjust the beam direction angle of the main reflection source azimuth by avoiding the mirror angle of the main reflection source azimuth. During the adjustment process, the priority condition is to preferentially avoid the mirror angle with the lowest metric value, and at the same time, the constraint condition is that the angle of the to-be-generated sector after adjustment does not exceed the angle threshold. The beam direction angle of the main reflection source azimuth is adjusted in the smallest unit of the preset adjustment step size.

[0101] In this embodiment, as Figure 2 shown, when the trigger beam pointing switching strategy adjusts beam aggregation, according to the terrain elevation, historical multipath interference records, and terrain type of the base station corresponding to the beam aggregation, combined with the AR model to obtain a reflection source probability distribution map, select the area with a reflection probability higher than the first ratio from the reflection source probability distribution map as the main reflection source azimuth, where the first ratio is 70%, that is, select the area with a reflection probability higher than 70% from the reflection source probability distribution map as the main reflection source azimuth, and adjust the beam direction angle of the main reflection source azimuth by avoiding the mirror angle of the main reflection source azimuth. Among them, 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 constraint condition is that the angle of the to-be-generated sector after adjustment does not exceed the angle threshold, where the angle threshold is 140°. The priority condition is to avoid the mirror angle with the lowest metric value and adjust the beam direction angle of the main reflection source azimuth in the smallest unit of the preset adjustment step size, where the preset adjustment step size is 5°. When there are multiple main reflection source azimuths, preferentially select the main reflection source azimuth with the greatest impact on the metric value for adjustment.

[0102] In this embodiment, after implementing dynamic sector allocation based on beam aggregation, intelligent energy-saving regulation will be carried out, specifically as follows:

[0103] The power consumption and PRB group of the beam aggregation are adjusted in real time through a power-level sleep strategy and a service priority strategy to achieve dynamic energy saving.

[0104] In this embodiment, the adjustment rules of the power-level sleep strategy are shown in Table 2. That is, when the current time belongs to the busy farming period, a full-power working mode is adopted, and the power consumption control is 650W. When the current time belongs to the low-traffic period at night, a half-power working mode is adopted, and the power consumption control is 320W. When it is monitored that it is not the busy farming period and no user is online for more than 1 hour, a sleep working mode is adopted, and the power consumption control is 80W. When it is monitored that it is not the busy farming period and there are no active users for five consecutive minutes, a deep sleep working mode is adopted, and the power consumption control is 0W, that is, the corresponding beam radio frequency is turned off.

[0105] Table 2. Adjustment Rules Table of Power-Level Sleep Strategy

[0106]

[0107] 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 the 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 the 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 the 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 can be calculated in combination with the set ratio upper limit. The PRB group number formula is:

[0108] Number of PRB groups = Total number of PRB groups e(-0.5 (Priority - 1));

[0109] Table 3. Adjustment Rules Table of Service Priority Strategy

[0110]

[0111] Embodiment 2

[0112] Please refer to Figure 3, the present invention provides a dynamic sector allocation system 1 for beam aggregation, including a memory 3, a processor 2, and a computer program stored on the memory 3 and executable on the processor 2. When the processor 2 executes the computer program, the steps in the first embodiment are implemented.

[0113] Since the system / device described in the above embodiments of the present invention is the system / device adopted for implementing the method in the above embodiments of the present invention, based on the method described in the above embodiments of the present invention, those skilled in the art can understand the specific structure and variations of the system / device, and thus will not be elaborated here. Any system / device adopted by the method in the above embodiments of the present invention falls within the scope of protection of the present invention.

[0114] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0115] The present invention is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions.

[0116] It should be noted that in the claims, any reference signs placed between parentheses should 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 present invention can be implemented by means of hardware including several different components and by means of a suitably programmed computer. In the claims listing several devices, several of these devices can be embodied by the same hardware. The use of the words first, second, third, etc. is only for convenience of expression and does not indicate any order. These words can be understood as part of the component names.

[0117] In addition, it should be noted that in the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0118] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications after learning the basic creative concept. Therefore, the claims should be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0119] 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 its equivalent technologies, 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: ； ； 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, and 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, Indicates 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. A method for dynamic sector allocation of beam aggregation as claimed in 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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