Power distribution method and device of multi-feed power distribution network architecture, network architecture and terminal

Abstract

A power distribution method and device of a multi-feed power distribution network architecture, a network architecture and a terminal, applied to the technical field of lens antenna, the method comprising: obtaining the feed type of each feed in the multi-feed power distribution network architecture according to the position of the feed, the multi-beam lens antenna of the feed being distributed in an N*M grid, N being an integer greater than a second preset number, M being an integer multiple of the second preset number, and feeds of the same feed type being connected with a power calibrator through at least one numerical control attenuator and / or power divider; obtaining the demand parameter in the multi-feed power distribution network architecture, the demand parameter comprising at least one of the following: coverage height, station spacing, beam elevation angle threshold, frequency guard threshold and power divider insertion loss; and determining the attenuation value of each numerical control attenuator according to the feed type and the demand parameter. The method has sidelobe suppression capability, can effectively avoid frequent switching of users at the edge of a cell, and can simply change the coverage space of a base station.

Description

Technical Field

[0001] This application relates to the field of multi-feed lens antenna technology, specifically to a power allocation method, device, network architecture, and terminal for a multi-feed power allocation network architecture. Background Technology

[0002] With the rapid development of the low-altitude economy, coverage in low-altitude scenarios (such as drones and low-altitude aircraft) has always been a challenge. Existing antenna solutions mainly focus on ground coverage, but these ground-based antenna solutions cannot be directly deployed in low-altitude scenarios.

[0003] Lens antennas have good beam focusing capability and excellent sidelobe suppression capability. Multi-feed lens antennas facilitate flexible beamforming while also having low sidelobe characteristics.

[0004] However, current antenna solutions for low-altitude coverage scenarios mainly face the following challenges:

[0005] 1. For multi-altitude coverage application scenarios at low altitudes, flexible antenna solutions are needed to adapt to different altitudes in order to reduce the complexity of antenna product design and thus reduce the cost of building low-altitude coverage networks.

[0006] 2. In low-altitude scenarios, there is a serious problem of over-coverage and frequent handover by users at the edge of nearby communities. Summary of the Invention

[0007] At least one embodiment of this application provides a power allocation method, apparatus, network architecture, and terminal for a multi-feed power allocation network architecture, which addresses the problems of high cost, severe cross-area coverage, and frequent handover of users at the edge of adjacent cells in antenna schemes for low-altitude coverage scenarios in the prior art.

[0008] To solve the above-mentioned technical problems, this application is implemented as follows:

[0009] In a first aspect, embodiments of this application provide a power allocation method for a multi-feed power allocation network architecture, including:

[0010] The feed type of each feed in the multi-feed power distribution network architecture is obtained according to the location of the feed. The feed multi-beam lens antenna is distributed in an N*M grid, where N is an integer greater than a second preset number and M is an integer multiple of the second preset number. The feed of the same feed type is connected to a power calibrator through at least one digitally controlled attenuator and / or power divider. The multi-feed power distribution network architecture is provided with a first preset number of the power calibrators.

[0011] Obtain the required parameters in the multi-feed power distribution network architecture, including at least one of the following: coverage height, station spacing, beam elevation angle threshold, anti-frequency switching threshold, and power divider insertion loss;

[0012] The attenuation value of each of the numerically controlled attenuators is determined based on the feed type and the required parameters.

[0013] Preferably, in the power allocation method described above, determining the attenuation value of each of the numerically controlled attenuators based on the feed type and demand parameters includes:

[0014] Based on the coverage height and station spacing in the required parameters, the maximum radiation beam elevation angle is obtained, and the maximum and minimum radiation beam gain attenuation values ​​in the vertical dimension are obtained based on the path loss.

[0015] Based on the maximum radiation beam elevation angle and the beam elevation angle threshold, determine the target feed type with maximum vertical radiation constraint;

[0016] Based on the determined target feed type, the frequency cut-off threshold, and the power divider insertion loss, the attenuation value of the digitally controlled attenuator corresponding to each feed type is obtained and set.

[0017] Preferably, in the power allocation method described above, when the first preset quantity is four and the second preset quantity is three, the step of obtaining the feed type of each feed in the multi-feed power allocation network architecture based on the feed location includes:

[0018] Based on the first ratio of M to the second preset quantity, the feed source is divided into three rows: upper, middle, and lower.

[0019] The feed source is divided into three columns: left, middle, and right, according to the second ratio of N to the second preset number, or according to the third ratio of N to the second preset number and the first remainder.

[0020] The first feed source type is determined to be the intersection of the middle column area and the upper column area; the second feed source type is the intersection of the middle column area and the middle row area; the third feed source type is the union of the intersections of the left column area with the upper row area and the middle row area respectively, and the intersections of the right column area with the upper row area and the middle row area respectively; the fourth feed source type is the following areas.

[0021] Specifically, in the power allocation method described above, determining the target feed type with maximum vertical radiation constraint based on the maximum radiation beam elevation angle and the beam elevation angle threshold includes:

[0022] If the maximum radiation beam elevation angle is less than the beam elevation angle threshold, then the first feed type located at the intersection of the middle column region and the uplink region is determined to be the target feed type;

[0023] If the maximum radiation beam elevation angle is greater than or equal to the beam elevation angle threshold, then the second feed type located at the intersection of the middle column area and the middle row area is the target feed type.

[0024] Specifically, in the power allocation method described above, the step of obtaining and setting the attenuation value of the digitally controlled attenuator corresponding to each feed type based on the determined target feed type, the frequency cut-off threshold, and the power divider insertion loss includes:

[0025] In the first feed type and the second feed type, the attenuation value of the first numerically controlled attenuator corresponding to one type of the target feed type is zero, and the attenuation value of the second numerically controlled attenuator corresponding to the other type is the attenuation value of the maximum radiation beam gain in the vertical dimension.

[0026] The attenuation value of the third CNC attenuator corresponding to the third feed type in the uplink region is set to be the difference between the frequency cut-off threshold and the insertion loss value of the first total power divider. The insertion loss value of the first total power divider is the sum of the power divider insertion losses of each power divider corresponding to the third feed type in the uplink region.

[0027] The attenuation value of the fourth numerically controlled attenuator corresponding to the third feed type in the downlink region is set to the sum of the difference between the anti-frequency cut-off threshold and the insertion loss value of the second total power divider and the attenuation value of the maximum radiation beam gain in the vertical dimension. The insertion loss value of the second total power divider is the sum of the power divider insertion losses of each power divider corresponding to the third feed type in the downlink region.

[0028] The attenuation value of the fifth numerically controlled attenuator corresponding to the fourth feed type in the middle column is set to be the difference between the minimum radiation beam gain attenuation value in the vertical dimension and the insertion loss value of the third total power divider. The insertion loss value of the third total power divider is the sum of the power divider insertion losses of each power divider corresponding to the fourth feed type in the middle column.

[0029] The attenuation value of the third numerically controlled attenuator corresponding to the fourth feed type located in the right column area is set to the sum of the difference between the anti-frequency cut-off threshold and the insertion loss value of the fourth total power divider and the attenuation value of the minimum radiation beam gain in the vertical dimension. The insertion loss value of the fourth total power divider is the sum of the power divider insertion losses of each power divider corresponding to the fourth feed type located in the right column area.

[0030] Secondly, embodiments of this application provide a control device, including:

[0031] The first acquisition module is used to acquire the feed type of each feed in the multi-feed power distribution network architecture according to the position of the feed. The feed multi-beam lens antenna is distributed in an N*M grid, where N is an integer greater than a second preset number and M is an integer multiple of the second preset number. The feeds of the same feed type are connected to a power calibrator through at least one digitally controlled attenuator and / or power divider. The multi-feed power distribution network architecture is provided with a first preset number of the power calibrators.

[0032] The second acquisition module is used to acquire the demand parameters in the multi-feed power distribution network architecture. The demand parameters include at least one of the following: coverage height, station spacing, beam elevation angle threshold, anti-frequency switching threshold, and power divider insertion loss.

[0033] The data processing module is used to determine the attenuation value of each of the numerically controlled attenuators based on the feed type and the required parameters.

[0034] This application provides a multi-feed power distribution network architecture, including:

[0035] A first preset number of power calibrators are set up to correspond to multiple transmission channels;

[0036] The feed multi-beam lens antenna has an N*M grid distribution, where N is an integer greater than a second preset number and M is an integer multiple of the second preset number. All feeds are divided into the first preset number of feed types according to their positions, and feeds of the same type are connected to a power calibrator through at least one digitally controlled attenuator and / or power divider.

[0037] The control device described above is used to calibrate the transmit power of the multiple transmit channels to be consistent, and can obtain the feed type of each feed in the feed multi-beam lens antenna according to the feed position; obtain the demand parameters in the multi-feed power distribution network architecture, the demand parameters including at least one of: coverage height, station spacing, beam elevation angle threshold, anti-frequency cut-off threshold and unit power divider insertion loss; and determine the attenuation value of each of the numerically controlled attenuators according to the feed type and demand parameters.

[0038] Specifically, in the power distribution network architecture described above, the number and type of the power dividers are related to the number, number of rows, and / or number of columns of the feeds of the same feed type;

[0039] Each of the aforementioned feed types corresponds to at least one of the aforementioned numerically controlled attenuators.

[0040] Optionally, the power distribution network architecture described above also includes:

[0041] At least one combiner, when the number of transmission channels is greater than the first preset number, has one end connected to the power calibrator and the other end connected to at least two of the transmission channels.

[0042] Optionally, the power distribution network architecture described above also includes:

[0043] At least one channel power divider, when the number of transmission channels is less than the first preset number, has one end connected to the transmission channel and the other end connected to at least two of the power calibrators.

[0044] Fourthly, embodiments of this application provide a terminal, including: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the power allocation method as described above.

[0045] Fifthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the power allocation method described above.

[0046] Sixthly, embodiments of this application provide a computer program product including computer instructions that, when executed by a processor, implement the steps of the power allocation method described above.

[0047] Compared with the prior art, the power allocation method, device, network architecture and terminal of the multi-feed power allocation network architecture provided in this application embodiment utilize the excellent sidelobe suppression capability of the feed multi-beam lens antenna, and by setting a reasonable anti-frequency switching threshold, it can effectively avoid users frequently switching at the cell edge in the multi-sector networking scheme. At the same time, when the airspace covered by the base station changes, there is no need to modify the hardware layout. Only by adjusting the demand parameters can the airspace covered by the base station be changed, which greatly reduces the labor cost of debugging and construction. Attached Figure Description

[0048] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0049] Figure 1 This is one of the flowcharts illustrating the power allocation method of the multi-feed power allocation network architecture according to an embodiment of this application;

[0050] Figure 2This is a second schematic flowchart of the power allocation method for a multi-feed power allocation network architecture according to an embodiment of this application.

[0051] Figure 3 This is one of the schematic diagrams showing the partitioning of the feed array according to an embodiment of this application;

[0052] Figure 4 This is the second schematic diagram of the feed array partitioning in an embodiment of this application;

[0053] Figure 5 This is the third schematic diagram of the feed array partitioning in this application embodiment;

[0054] Figure 6 This is a schematic diagram of the feed distribution of a 3*3 feed multi-beam lens antenna in one embodiment of this application;

[0055] Figure 7 This is a schematic diagram of the multi-feed power distribution network architecture according to an embodiment of this application;

[0056] Figure 8 This is a schematic diagram of the control device according to an embodiment of this application. Detailed Implementation

[0057] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0058] The terms “first,” “second,” etc., used in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. The terms “and / or” in the specification and claims indicate at least one of the connected objects.

[0059] The following description provides examples and is not intended to limit the scope, applicability, or configuration set forth in the claims. Changes may be made to the function and arrangement of the elements discussed without departing from the spirit and scope of this disclosure. Various procedures or components may be appropriately omitted, substituted, or added to the examples. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to certain examples may be combined in other examples.

[0060] Please refer to Figure 1 This application provides a power allocation method for a multi-feed power allocation network architecture, including:

[0061] Step S101: Obtain the feed type of each feed in the multi-feed power distribution network architecture according to the location of the feed. The feed multi-beam lens antenna is distributed in an N*M grid, where N is an integer greater than a second preset number and M is an integer multiple of the second preset number. The feeds of the same feed type are connected to a power calibrator through at least one digitally controlled attenuator and / or power divider. The multi-feed power distribution network architecture is provided with a first preset number of power calibrators.

[0062] Step S102: Obtain the required parameters in the multi-feed power distribution network architecture. The required parameters include at least one of the following: coverage height, station spacing, beam elevation angle threshold, anti-frequency switching threshold, and power divider insertion loss.

[0063] Step S103: Determine the attenuation value of each of the numerically controlled attenuators according to the feed type and the required parameters.

[0064] This embodiment discloses a power allocation method in a multi-feed power allocation network architecture based on a feed-source multi-beam lens antenna. During power allocation, the feed type of each feed in the multi-feed power allocation network architecture is first obtained based on the feed's location, allowing for targeted adjustments based on the feed type. It should be noted that the feed-source multi-beam lens antenna in this embodiment is preferably distributed in an N*M grid to ensure beam coverage in both the vertical and horizontal dimensions. For example, in one embodiment, a 3*3 feed-source multi-beam lens antenna is arranged in a grid pattern, with each feed radiating a sub-beam with a vertical beamwidth of 30 degrees and a horizontal beamwidth of 40 degrees. This achieves a nearly 90-degree beamwidth in the vertical dimension and a 120-degree beamwidth in the horizontal dimension, making it directly applicable to low-altitude coverage schemes using a three-sector network. It should be noted that this application is not limited to this only condition. The feed array can also be determined according to the required coverage range. For example, a lens multi-beam antenna ultimately needs to cover a horizontal beam range of S degrees, and the horizontal width of a single feed beam is R degrees and the vertical dimension is I degrees. Then the number of feed arrays in the horizontal direction should not be less than S / R rounded up, and the number of vertical dimensions should not be less than 90 / I rounded up.

[0065] Meanwhile, feeds of the same feed type are connected to a power calibrator through at least one digitally controlled attenuator and / or power divider. The power calibrator is set with a first preset number in the multi-feed power distribution network architecture. The power calibrator can perform power calibration on the radio frequency channels so that the power of each radio frequency channel is the same and is the maximum power required for coverage. The power divider is used to divide the power of different subtypes or different feeds of the same feed type to obtain the power corresponding to each feed. The digitally controlled attenuator is used to further weight the power corresponding to the feeds of various feed types to ensure that the final transmitted beam meets the coverage requirements.

[0066] Furthermore, the required parameters in the multi-feed power distribution network architecture will be obtained. These required parameters include, but are not limited to, the coverage height required by the antenna, the spacing between adjacent base stations, the preset beam elevation angle threshold, the anti-frequency switching threshold determined based on the network type requirements, and the power divider insertion loss caused by the inserted power divider.

[0067] Finally, based on the feed type of each feed of the feed multi-beam lens antenna and the required parameters obtained above, the attenuation value of each numerically controlled attenuator in the network architecture can be obtained. By further combining the known power divider, the power distribution of each feed can be realized.

[0068] In summary, the scheme disclosed in this embodiment utilizes the excellent sidelobe suppression capability of the feed multi-beam lens antenna, and by setting a reasonable anti-frequency switching threshold, it can effectively prevent users from frequently switching at the cell edge in a multi-sector networking scheme. At the same time, when the airspace covered by the base station changes, there is no need to modify the hardware layout; only the required parameters need to be adjusted to change the airspace covered by the base station, which greatly reduces the labor costs of debugging and construction.

[0069] See Figure 2 Preferably, in the power allocation method described above, determining the attenuation value of each of the numerically controlled attenuators based on the feed type and demand parameters includes:

[0070] Step S201: Based on the coverage height and station spacing in the required parameters, obtain the maximum radiation beam elevation angle, and based on the path loss, obtain the maximum radiation beam gain attenuation value and the minimum radiation beam gain attenuation value in the vertical dimension.

[0071] Step S202: Determine the target feed type with maximum vertical radiation constraint based on the maximum radiation beam elevation angle and the beam elevation angle threshold.

[0072] Step S203: Based on the determined target feed type, the frequency cut-off threshold, and the power divider insertion loss, obtain and set the attenuation value of the digitally controlled attenuator corresponding to each feed type.

[0073] In this embodiment, the steps of determining the attenuation value of each of the numerically controlled attenuators according to the feed type and the demand parameters are illustrated. First, based on the coverage height and the spacing between base stations in the demand parameters, the maximum radiation beam elevation angle of the antenna can be obtained through geometric calculation. Furthermore, by calculating the path loss between base station antennas, the maximum radiation beam gain attenuation value and the minimum radiation beam gain attenuation value in the vertical dimension used to offset the path loss and ensure signal strength can be obtained.

[0074] Then, based on the comparison between the maximum radiation beam elevation angle obtained above and the preset beam elevation angle threshold, the target feed type with the maximum vertical radiation constraint can be determined among multiple feed types. Then, based on the location of the target feed type and its positional relationship with other feed types, the attenuation value of the digitally controlled attenuator corresponding to each feed type can be obtained and set by combining the anti-frequency cut-off threshold and the insertion loss of the power divider, so as to further realize the power distribution of each feed.

[0075] Preferably, in the power allocation method described above, when the first preset quantity is four and the second preset quantity is three, the step of obtaining the feed type of each feed in the multi-feed power allocation network architecture based on the feed location includes:

[0076] Based on the first ratio of M to the second preset quantity, the feed source is divided into three rows: upper, middle, and lower.

[0077] The feed source is divided into three columns: left, middle, and right, according to the second ratio of N to the second preset number, or according to the third ratio of N to the second preset number and the first remainder.

[0078] The first feed source type is determined to be the intersection of the middle column area and the upper column area; the second feed source type is the intersection of the middle column area and the middle row area; the third feed source type is the union of the intersections of the left column area with the upper row area and the middle row area respectively, and the intersections of the right column area with the upper row area and the middle row area respectively; the fourth feed source type is the following areas.

[0079] To facilitate understanding by those skilled in the art, this embodiment uses a first preset quantity of four and a second preset quantity of three as an example to illustrate the steps of obtaining the feed type of each feed in a multi-feed power distribution network architecture based on the feed location. First, since M is an integer multiple of the second preset quantity, the feed is divided into three row areas: upper, middle, and lower, based on the first ratio of M to the second preset quantity. Then, since N is a number greater than the second preset quantity, when N is an integer multiple of the second preset quantity, the feed is divided into three column areas: left, middle, and right, based on the second ratio of N to the second preset quantity. Alternatively, when N is not an integer multiple of the second preset quantity, the feed is divided into three column areas: left, middle, and right, based on the third ratio of N to the second preset quantity and the first remainder. The number of feeds in the left column area and the right column area is the same, and the absolute difference between the number of feeds in the middle column area and the left column area is the second preset quantity. Finally, based on the angular influence of the feed beams at different locations in the horizontal and vertical dimensions, the first feed type is determined to be the intersection of the middle column area and the uplink area; the second feed type is the intersection of the middle column area and the middle row area; the third feed type is the union of the intersections of the left column area with the uplink area and the middle row area respectively, and the intersections of the right column area with the uplink area and the middle row area respectively; and the fourth feed type is the following areas.

[0080] For the purpose of understanding by those skilled in the art, please refer to the following: Figure 3 , Figure 4 or Figure 5 The diagram shows the feed array division, where TX1 represents the feed of the first feed type, TX2 represents the feed of the second feed type, TX3 represents the feed of the third feed type, and TX4 represents the feed of the fourth feed type.

[0081] Specifically, in the power allocation method described above, determining the target feed type with maximum vertical radiation constraint based on the maximum radiation beam elevation angle and the beam elevation angle threshold includes:

[0082] If the maximum radiation beam elevation angle is less than the beam elevation angle threshold, then the first feed type located at the intersection of the middle column region and the uplink region is determined to be the target feed type;

[0083] If the maximum radiation beam elevation angle is greater than or equal to the beam elevation angle threshold, then the second feed type located at the intersection of the middle column area and the middle row area is the target feed type.

[0084] Specifically, in the power allocation method described above, the step of obtaining and setting the attenuation value of the digitally controlled attenuator corresponding to each feed type based on the determined target feed type, the frequency cut-off threshold, and the power divider insertion loss includes:

[0085] In the first feed type and the second feed type, the attenuation value of the first numerically controlled attenuator corresponding to one type of the target feed type is zero, and the attenuation value of the second numerically controlled attenuator corresponding to the other type is the attenuation value of the maximum radiation beam gain in the vertical dimension.

[0086] The attenuation value of the third CNC attenuator corresponding to the third feed type in the uplink region is set to be the difference between the frequency cut-off threshold and the insertion loss value of the first total power divider. The insertion loss value of the first total power divider is the sum of the power divider insertion losses of each power divider corresponding to the third feed type in the uplink region.

[0087] The attenuation value of the fourth numerically controlled attenuator corresponding to the third feed type in the downlink region is set to the sum of the difference between the anti-frequency cut-off threshold and the insertion loss value of the second total power divider and the attenuation value of the maximum radiation beam gain in the vertical dimension. The insertion loss value of the second total power divider is the sum of the power divider insertion losses of each power divider corresponding to the third feed type in the downlink region.

[0088] The attenuation value of the fifth numerically controlled attenuator corresponding to the fourth feed type in the middle column is set to be the difference between the minimum radiation beam gain attenuation value in the vertical dimension and the insertion loss value of the third total power divider. The insertion loss value of the third total power divider is the sum of the power divider insertion losses of each power divider corresponding to the fourth feed type in the middle column.

[0089] The attenuation value of the third numerically controlled attenuator corresponding to the fourth feed type located in the right column area is set to the sum of the difference between the anti-frequency cut-off threshold and the insertion loss value of the fourth total power divider and the attenuation value of the minimum radiation beam gain in the vertical dimension. The insertion loss value of the fourth total power divider is the sum of the power divider insertion losses of each power divider corresponding to the fourth feed type located in the right column area.

[0090] In this embodiment, the previous step determines that the target feed type with the maximum vertical radiation constraint is one of the first feed type and the second feed type. Therefore, the attenuation value of the first numerically controlled attenuator corresponding to the target feed type is set to zero, and the attenuation value of the second numerically controlled attenuator corresponding to the other type is the maximum vertical radiation beam gain attenuation value, ensuring that the feed corresponding to the second numerically controlled attenuator has sufficient signal strength. Furthermore, based on the positions of the feeds of the third and fourth feed types, combined with the power divider insertion loss value, the anti-frequency cut-off threshold, and the aforementioned minimum and maximum vertical radiation beam gain attenuation values, the attenuation value of the numerically controlled attenuator corresponding to each of the third and fourth feed types can be determined.

[0091] It should be noted that since both the third and fourth feed types have at least two subclasses, the power divider insertion loss value corresponding to at least one subclass power divider needs to be subtracted. When there are two subclasses, another power divider needs to be set up to divide the power, so as to obtain the power corresponding to each feed. At this time, the total power divider insertion loss value needs to be determined according to the specific number and type of power dividers.

[0092] In one specific embodiment, taking a 3*3 feed-source multi-beam lens antenna as an example, the first feed type has one feed source, which does not require power division and corresponds to only one digitally controlled attenuator; the second feed type has one feed source, which does not require power division and corresponds to only one digitally controlled attenuator; the third feed type has four feed sources, evenly distributed in the uplink and middleline regions, thus requiring three two-way power dividers, corresponding to two digitally controlled attenuators; the fourth feed type has three feed sources, evenly distributed in the upper left column, right column, and middle column regions, thus requiring three two-way power dividers, corresponding to two digitally controlled attenuators; see details below. Figure 6 and Figure 7 At this point, when the maximum radiation beam elevation angle is less than the elevation angle threshold, the attenuation value of the digitally controlled attenuator corresponding to the first feed type is set to 0, and feed 2 is the maximum vertical radiation beam; the attenuation value of the digitally controlled attenuator corresponding to the first feed type is set to the maximum vertical radiation beam gain attenuation value, and feed 5 is the second largest vertical radiation beam; the attenuation value of the digitally controlled attenuator corresponding to the uplink region in the third feed type is set to the anti-frequency cut-off threshold minus 2 * the insertion loss of the two power divider; the attenuation value of the digitally controlled attenuator corresponding to the middle region in the third feed type is set to the maximum vertical radiation beam gain attenuation value plus the anti-frequency cut-off threshold minus 2 * the insertion loss of the two power divider; the attenuation value of the digitally controlled attenuator corresponding to the middle column region in the fourth feed type is set to the minimum vertical radiation beam gain attenuation value minus the insertion loss of the two power divider; the attenuation value of the digitally controlled attenuator corresponding to the left and right column regions in the fourth feed type is set to the minimum vertical radiation beam gain attenuation value plus the anti-frequency cut-off threshold minus 2 * the insertion loss of the two power divider.

[0093] The various methods of the embodiments of this application have been described above. Apparatus for implementing the above methods will now be provided.

[0094] See Figure 8 This application provides a control device, including:

[0095] The first acquisition module 801 is used to acquire the feed type of each feed in the multi-feed power distribution network architecture according to the position of the feed. The feed multi-beam lens antenna is distributed in an N*M grid, where N is an integer greater than a second preset number and M is an integer multiple of the second preset number. The feeds of the same feed type are connected to a power calibrator through at least one digitally controlled attenuator and / or power divider. The multi-feed power distribution network architecture is provided with a first preset number of the power calibrators.

[0096] The second acquisition module 802 is used to acquire the demand parameters in the multi-feed power distribution network architecture. The demand parameters include at least one of the following: coverage height, station spacing, beam elevation angle threshold, anti-frequency switching threshold, and power divider insertion loss.

[0097] The data processing module 803 is used to determine the attenuation value of each of the numerically controlled attenuators according to the feed type and the required parameters.

[0098] Preferably, in the control device described above, the data processing module includes:

[0099] The first sub-processing module is used to obtain the maximum radiation beam elevation angle based on the coverage height and station spacing in the required parameters, and to obtain the maximum radiation beam gain attenuation value and the minimum radiation beam gain attenuation value in the vertical dimension based on the path loss.

[0100] The second sub-processing module is used to determine the target feed type with maximum vertical radiation constraint based on the maximum radiation beam elevation angle and the beam elevation angle threshold.

[0101] The third sub-processing module is used to obtain and set the attenuation value of the digitally controlled attenuator corresponding to each of the feed types, based on the determined target feed type, the frequency cut-off threshold, and the power divider insertion loss.

[0102] Preferably, in the control unit described above, when the first preset quantity is four and the second preset quantity is three, the first acquisition module includes:

[0103] The fourth sub-processing module is used to divide the feed source into three rows: upper, middle, and lower, according to the first ratio of M to the second preset quantity.

[0104] The fifth sub-processing module is used to divide the feed source into three column areas: left, middle, and right, according to the second ratio of N to the second preset number, or according to the third ratio of N to the second preset number and the first remainder.

[0105] The sixth sub-processing module is used to determine the first feed source type as the intersection of the middle column area and the upper row area, the second feed source type as the intersection of the middle column area and the middle row area, the third feed source type as the union of the intersections of the left column area with the upper row area and the middle row area respectively, and the intersections of the right column area with the upper row area and the middle row area respectively, and the fourth feed source type as the following areas.

[0106] Specifically, in the control device described above, the second sub-processing module includes:

[0107] If the maximum radiation beam elevation angle is less than the beam elevation angle threshold, then the first feed type located at the intersection of the middle column region and the uplink region is determined to be the target feed type;

[0108] If the maximum radiation beam elevation angle is greater than or equal to the beam elevation angle threshold, then the second feed type located at the intersection of the middle column area and the middle row area is the target feed type.

[0109] Specifically, in the control device described above, the third sub-processing module includes:

[0110] In the first feed type and the second feed type, the attenuation value of the first numerically controlled attenuator corresponding to one type of the target feed type is zero, and the attenuation value of the second numerically controlled attenuator corresponding to the other type is the attenuation value of the maximum radiation beam gain in the vertical dimension.

[0111] The attenuation value of the third CNC attenuator corresponding to the third feed type in the uplink region is set to be the difference between the frequency cut-off threshold and the insertion loss value of the first total power divider. The insertion loss value of the first total power divider is the sum of the power divider insertion losses of each power divider corresponding to the third feed type in the uplink region.

[0112] The attenuation value of the fourth numerically controlled attenuator corresponding to the third feed type in the downlink region is set to the sum of the difference between the anti-frequency cut-off threshold and the insertion loss value of the second total power divider and the attenuation value of the maximum radiation beam gain in the vertical dimension. The insertion loss value of the second total power divider is the sum of the power divider insertion losses of each power divider corresponding to the third feed type in the downlink region.

[0113] The attenuation value of the fifth numerically controlled attenuator corresponding to the fourth feed type in the middle column is set to be the difference between the minimum radiation beam gain attenuation value in the vertical dimension and the insertion loss value of the third total power divider. The insertion loss value of the third total power divider is the sum of the power divider insertion losses of each power divider corresponding to the fourth feed type in the middle column.

[0114] The attenuation value of the third numerically controlled attenuator corresponding to the fourth feed type located in the right column area is set to the sum of the difference between the anti-frequency cut-off threshold and the insertion loss value of the fourth total power divider and the attenuation value of the minimum radiation beam gain in the vertical dimension. The insertion loss value of the fourth total power divider is the sum of the power divider insertion losses of each power divider corresponding to the fourth feed type located in the right column area.

[0115] It should be noted that the control device in this embodiment corresponds to the power allocation method of the multi-feed power allocation network architecture described above. The implementation methods in the above embodiments are all applicable to the embodiments of this control device and can achieve the same technical effect. The control device provided in this application embodiment can implement all the method steps implemented in the above method embodiments and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiments and the beneficial effects will not be described in detail.

[0116] See Figure 7 This application provides a multi-feed power distribution network architecture, including:

[0117] A first preset number of power calibrators 701 are set up corresponding to multiple transmission channels 702;

[0118] The feed multi-beam lens antenna has an N*M grid distribution, where N is an integer greater than a second preset number and M is an integer multiple of the second preset number. All feeds are divided into the first preset number of feed types according to their positions, and feeds of the same feed type are connected to a power calibrator 701 through at least one digitally controlled attenuator 703 and / or a power divider 704.

[0119] The control device described above is used to calibrate the transmit power of the multiple transmit channels 702 to be consistent, and can obtain the feed type of each feed in the feed multi-beam lens antenna according to the feed position; obtain the required parameters in the multi-feed power distribution network architecture, the required parameters including at least one of: coverage height, station spacing, beam elevation angle threshold, anti-frequency cut-off threshold and unit power divider insertion loss; and determine the attenuation value of each of the numerically controlled attenuators according to the feed type and the required parameters.

[0120] This embodiment provides a power distribution network architecture including a control device capable of implementing the power distribution method described above. Specifically, it discloses the connection relationships of the power calibrator 701, the transmit channel 702, the digitally controlled attenuator 703, and the power divider 704. This power distribution network architecture can utilize the excellent sidelobe suppression capability of the feed multi-beam lens antenna. Furthermore, by setting a reasonable anti-frequency switching threshold, it can effectively prevent users from frequently switching at the cell edge in multi-sector networking schemes. Simultaneously, when the airspace covered by the base station changes, no hardware modifications are required; only adjustment of the demand parameters is needed to change the airspace covered by the base station, significantly reducing debugging and construction labor costs.

[0121] Specifically, in the power distribution network architecture described above, the number and type of the power dividers are related to the number, number of rows, and / or number of columns of the feeds of the same feed type.

[0122] In this embodiment, the associated parameters of the number and type of power dividers are given as examples. Specifically, they are related to the number, number of rows and / or number of columns of the feeds of the same feed type. For example, the power dividers corresponding to the third feed type are three two-equal power dividers, and the power dividers corresponding to the fourth feed type are two two-equal power dividers.

[0123] Optionally, the power distribution network architecture described above also includes:

[0124] At least one combiner, when the number of transmission channels is greater than the first preset number, has one end connected to the power calibrator and the other end connected to at least two of the transmission channels.

[0125] In this embodiment, the network architecture may also include at least one combiner to combine the transmission channels when the number of transmission channels exceeds a first preset number, thereby ensuring that the power of the feed sources is ultimately distributed according to the first preset number of feed source types. For example, when the number of transmission channels is twice the first preset number, every two transmission channels are connected to a power calibrator through a combiner.

[0126] Optionally, the power distribution network architecture described above also includes:

[0127] At least one channel power divider, when the number of transmission channels is less than the first preset number, has one end connected to the transmission channel and the other end connected to at least two of the power calibrators.

[0128] In this embodiment, the network architecture may also include at least one channel power divider, used to divide the power of the transmission channels when the number of transmission channels is less than a first preset number, so as to ensure that the power of the feed sources is ultimately distributed according to the first preset number of feed source types. For example, when the number of transmission channels is half of the first preset number, each transmission channel is connected to two power calibrators through a channel power divider.

[0129] This application provides a terminal, characterized in that it includes: a processor, a memory, and a program stored in the memory and executable on the processor. When the program is executed by the processor, it implements the steps of the power allocation method described above and can achieve the same technical effect. Here, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail.

[0130] This application provides a computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, it implements the steps of the power allocation method described above and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0131] This application provides a computer program product, characterized in that it includes computer instructions, which, when executed by a processor, implement the steps of the power allocation method described above and can achieve the same technical effect. Here, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail again.

[0132] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0133] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A power allocation method for a multi-feed power allocation network architecture, characterized in that, include: The feed type of each feed in the multi-feed power distribution network architecture is obtained according to the location of the feed. The feed multi-beam lens antenna is distributed in an N*M grid, where N is an integer greater than a second preset number and M is an integer multiple of the second preset number. The feed of the same feed type is connected to a power calibrator through at least one digitally controlled attenuator and / or power divider. The multi-feed power distribution network architecture is provided with a first preset number of the power calibrators. Obtain the required parameters in the multi-feed power distribution network architecture, including at least one of the following: coverage height, station spacing, beam elevation angle threshold, anti-frequency switching threshold, and power divider insertion loss; The attenuation value of each of the numerically controlled attenuators is determined based on the feed type and the required parameters.

2. The power distribution method according to claim 1, characterized in that, The step of determining the attenuation value of each of the numerically controlled attenuators based on the feed type and demand parameters includes: Based on the coverage height and station spacing in the required parameters, the maximum radiation beam elevation angle is obtained, and the maximum and minimum radiation beam gain attenuation values ​​in the vertical dimension are obtained based on the path loss. Based on the maximum radiation beam elevation angle and the beam elevation angle threshold, determine the target feed type with maximum vertical radiation constraint; Based on the determined target feed type, the frequency cut-off threshold, and the power divider insertion loss, the attenuation value of the digitally controlled attenuator corresponding to each feed type is obtained and set.

3. The power distribution method according to claim 2, characterized in that, When the first preset quantity is four and the second preset quantity is three, the step of obtaining the feed type of each feed in the multi-feed power distribution network architecture based on the feed location includes: Based on the first ratio of M to the second preset quantity, the feed source is divided into three rows: upper, middle, and lower. The feed source is divided into three columns: left, middle, and right, according to the second ratio of N to the second preset number, or according to the third ratio of N to the second preset number and the first remainder. The first feed source type is determined to be the intersection of the middle column area and the upper column area; the second feed source type is the intersection of the middle column area and the middle row area; the third feed source type is the union of the intersections of the left column area with the upper row area and the middle row area respectively, and the intersections of the right column area with the upper row area and the middle row area respectively; the fourth feed source type is the following areas.

4. The power distribution method according to claim 3, characterized in that, The step of determining the target feed type with maximum vertical radiation constraint based on the maximum radiation beam elevation angle and the beam elevation angle threshold includes: If the maximum radiation beam elevation angle is less than the beam elevation angle threshold, then the first feed type located at the intersection of the middle column region and the uplink region is determined to be the target feed type; If the maximum radiation beam elevation angle is greater than or equal to the beam elevation angle threshold, then the second feed type located at the intersection of the middle column area and the middle row area is the target feed type.

5. The power distribution method according to claim 3 or 4, characterized in that, The step of obtaining and setting the attenuation value of the digitally controlled attenuator corresponding to each feed type based on the determined target feed type, the frequency cut-off threshold, and the power divider insertion loss includes: In the first feed type and the second feed type, the attenuation value of the first numerically controlled attenuator corresponding to one type of the target feed type is zero, and the attenuation value of the second numerically controlled attenuator corresponding to the other type is the attenuation value of the maximum radiation beam gain in the vertical dimension. The attenuation value of the third CNC attenuator corresponding to the third feed type in the uplink region is set to be the difference between the frequency cut-off threshold and the insertion loss value of the first total power divider. The insertion loss value of the first total power divider is the sum of the power divider insertion losses of each power divider corresponding to the third feed type in the uplink region. The attenuation value of the fourth numerically controlled attenuator corresponding to the third feed type in the downlink region is set to the sum of the difference between the anti-frequency cut-off threshold and the insertion loss value of the second total power divider and the attenuation value of the maximum radiation beam gain in the vertical dimension. The insertion loss value of the second total power divider is the sum of the power divider insertion losses of each power divider corresponding to the third feed type in the downlink region. The attenuation value of the fifth numerically controlled attenuator corresponding to the fourth feed type in the middle column is set to be the difference between the minimum radiation beam gain attenuation value in the vertical dimension and the insertion loss value of the third total power divider. The insertion loss value of the third total power divider is the sum of the power divider insertion losses of each power divider corresponding to the fourth feed type in the middle column. The attenuation value of the third numerically controlled attenuator corresponding to the fourth feed type located in the right column area is set to the sum of the difference between the anti-frequency cut-off threshold and the insertion loss value of the fourth total power divider and the attenuation value of the minimum radiation beam gain in the vertical dimension. The insertion loss value of the fourth total power divider is the sum of the power divider insertion losses of each power divider corresponding to the fourth feed type located in the right column area.

6. A control device, characterized in that, include: The first acquisition module is used to acquire the feed type of each feed in the multi-feed power distribution network architecture according to the position of the feed. The feed multi-beam lens antenna is distributed in an N*M grid, where N is an integer greater than a second preset number and M is an integer multiple of the second preset number. The feeds of the same feed type are connected to a power calibrator through at least one digitally controlled attenuator and / or power divider. The multi-feed power distribution network architecture is provided with a first preset number of the power calibrators. The second acquisition module is used to acquire the demand parameters in the multi-feed power distribution network architecture. The demand parameters include at least one of the following: coverage height, station spacing, beam elevation angle threshold, anti-frequency switching threshold, and power divider insertion loss. The data processing module is used to determine the attenuation value of each of the numerically controlled attenuators based on the feed type and the required parameters.

7. A multi-feed power distribution network architecture, characterized in that, include: A first preset number of power calibrators are set up to correspond to multiple transmission channels; The feed multi-beam lens antenna has an N*M grid distribution, where N is an integer greater than a second preset number and M is an integer multiple of the second preset number. All feeds are divided into the first preset number of feed types according to their positions, and feeds of the same type are connected to a power calibrator through at least one digitally controlled attenuator and / or power divider. The control device as described in claim 6 is configured to calibrate the transmission power of the plurality of transmission channels to be consistent, and to obtain the feed type of each feed in the feed multi-beam lens antenna according to the position of the feed. Obtain the required parameters in the multi-feed power distribution network architecture, including at least one of the following: coverage height, station spacing, beam elevation angle threshold, anti-frequency switching threshold, and unit power divider insertion loss; The attenuation value of each of the numerically controlled attenuators is determined according to the feed type and required parameters.

8. The power distribution network architecture according to claim 7, characterized in that, The number and type of the power divider are related to the number, number of rows and / or number of columns of the feeds of the same feed type; Each of the aforementioned feed types corresponds to at least one of the aforementioned numerically controlled attenuators.

9. The power distribution network architecture according to claim 7, characterized in that, Also includes: At least one combiner, when the number of transmission channels is greater than the first preset number, has one end connected to the power calibrator and the other end connected to at least two of the transmission channels.

10. The power distribution network architecture according to claim 7, characterized in that, Also includes: At least one channel power divider, when the number of transmission channels is less than the first preset number, has one end connected to the transmission channel and the other end connected to at least two of the power calibrators.

11. A terminal, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the power distribution method as described in any one of claims 1 to 5.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the power allocation method as described in any one of claims 1 to 5.

13. A computer program product, characterized in that, It includes computer instructions that, when executed by a processor, implement the steps of the power distribution method as described in any one of claims 1 to 5.

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