Air-ground networking system, control method, device and readable storage medium

Abstract

The present application relates to an air-to-ground networking system, a control method, a device and a readable storage medium. The air-to-ground networking system includes an air-to-ground station and a ground station. The air-to-ground station is used to transmit an air-to-ground signal and a first ground-to-ground signal using a first carrier frequency; the ground station is used to transmit a second ground-to-ground signal using a second carrier frequency. The first carrier frequency is different from the second carrier frequency, and both the air-to-ground station and the ground station adopt a single carrier configuration, and the air-to-ground signal and the first ground signal are configured as the same cell. The air-to-ground networking system can be used to build an air-to-ground communication network without affecting the ground communication network.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an air-ground networking system, a control method, a device and a readable storage medium. Background Art

[0002] At present, drones are widely used in many civil fields such as consumer entertainment, logistics and transportation, agricultural meteorology, industrial production, geo-energy, smart cities, etc. With the rapid increase in the number of drones and the wide application demand of drones, it is urgent to build an air communication network to ensure the real-time transmission of drone flight control information and business data communication services.

[0003] However, the network in the related art mainly aims to cover ground terminals. Therefore, how to build an air communication network without affecting the ground communication network is a key research content for those skilled in the art. Summary of the invention

[0004] Based on this, it is necessary to provide an air-to-ground networking system, control method, device and readable storage medium that can build an air-to-air communication network without affecting the ground communication network in response to the above-mentioned technical problems.

[0005] In a first aspect, the present application provides an air-ground networking system, comprising:

[0006] An air-to-ground station, configured to transmit an air-to-ground signal and a first ground-to-ground signal using a first carrier frequency;

[0007] A ground station, used for transmitting a second ground signal using a second carrier frequency;

[0008] The first carrier frequency is different from the second carrier frequency, the air-to-ground station and the ground station both adopt a single carrier configuration, and the air-to-ground signal and the first ground signal are configured as the same cell.

[0009] In one of the embodiments, the air-to-ground station is used to transmit multiple air-to-air signals at multiple inclination angles in the vertical direction.

[0010] In one embodiment, the air-ground networking system is a time division duplex system or a frequency division duplex system.

[0011] In one of the embodiments, if the air-to-ground networking system is a time division duplex system, the air-to-ground station is used to transmit SSB signals in the vertical direction using at least one inclination angle, and the air-to-air signal includes the SSB signal.

[0012] In one embodiment, if the air-ground networking system is a frequency division duplex system, the air-ground station is used to simultaneously transmit an air signal and a first ground signal, the air signal includes a cell common signal and a service signal, and the first ground signal includes a cell common signal and a service signal.

[0013] In one of the embodiments, the ground coverage of the air-to-ground station and the ground coverage of the ground station constitute a preset ground coverage.

[0014] In one of the embodiments, the number of air-ground stations is less than the number of ground-to-ground stations.

[0015] In one embodiment, the empty ground station is a base station extracted from a ground cellular base station.

[0016] In one of the embodiments, the location of the air-ground station is determined based on the ground coverage capability and air coverage capability of the base station in the air-ground networking system.

[0017] In a second aspect, the present application also provides a control method, which is applied to an air-to-ground station, and the method includes:

[0018] The antenna unit of the control air-to-ground station transmits an air-to-air signal and a first ground-to-ground signal using a first carrier frequency;

[0019] Among them, the first carrier frequency is different from the second carrier frequency of the ground station in the network, and the ground station is used to transmit the second ground signal using the second carrier frequency; both the air-to-ground station and the ground station adopt a single carrier configuration, and the air-to-ground signal and the first ground signal are configured as the same cell.

[0020] In a third aspect, the present application also provides a control device, applied to an air-to-ground station, the device comprising:

[0021] A control module, used to control the antenna unit of the air-to-ground station to transmit an air-to-air signal and a first ground-to-ground signal using a first carrier frequency;

[0022] Among them, the first carrier frequency is different from the second carrier frequency of the ground station in the network, and the ground station is used to transmit the second ground signal using the second carrier frequency; both the air-to-ground station and the ground station adopt a single carrier configuration, and the air-to-ground signal and the first ground signal are configured as the same cell.

[0023] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of any of the above methods when executed by a processor.

[0024] In a fifth aspect, the present application also provides a computer program product, including a computer program, which implements the steps of any of the above methods when executed by a processor.

[0025] The above-mentioned air-to-ground networking system, control method, device and readable storage medium, since the air-to-ground networking system includes an air-to-ground station and a ground station, and the air-to-ground station is used to transmit an air-to-air signal and a first ground signal using a first carrier frequency, and the ground station is used to transmit a second ground signal using a second carrier frequency, therefore, ground coverage can still be achieved using the first ground signal, and air coverage can be achieved using the air signal. Moreover, since the first carrier frequency is different from the second carrier frequency, the co-frequency interference between the air network and the ground network can be reduced, so as to build an air communication network without affecting the ground communication network. Furthermore, since both the air-to-ground station and the ground station adopt a single carrier configuration, the air signal and the first ground signal are configured as the same cell, therefore, without expanding the carrier configuration, single-carrier hetero-frequency networking between the air network and the ground network can be achieved based on differentiated carrier deployment, so as to reduce the deployment cost of the air-to-ground networking system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 is a schematic diagram of an air-ground networking system in one embodiment;

[0028] Figure 2 is a schematic diagram of vertical coverage in one embodiment;

[0029] Figure 3 is a schematic diagram of a time division duplex system in one embodiment;

[0030] Figure 4 is a schematic diagram of a frequency division duplex system in one embodiment;

[0031] Figure 5 is a schematic diagram of yet another air-ground networking system in an embodiment;

[0032] Figure 6 FIG. 4 is a structural block diagram of a control device in an embodiment. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] Figure 1FIG. 1 is a schematic diagram of an air-ground networking system in an embodiment. Figure 1 As shown, in an exemplary embodiment, an air-ground networking system 100 is provided. The air-ground networking system 100 can provide wireless communication and data transmission services, and can be a mobile network, such as a cellular mobile network. The air-ground networking system 100 includes a base station, and the base station in the air-ground networking system 100 can be divided into an air-ground station 101 and a ground station 102 according to different functions. That is, the air-ground networking system 100 includes an air-ground station 101 and a ground station 102.

[0035] Please continue to refer to Figure 1 , wherein the air-to-ground station 101 is used to transmit an air-to-air signal and a first ground-to-ground signal using a first carrier frequency. The ground station 102 is used to transmit a second ground-to-ground signal using a second carrier frequency. That is, the air-to-ground station 101 can transmit an air-to-air signal and a first ground-to-ground signal. The ground station 102 can transmit a second air-to-air signal. The ground station 102 is used for ground coverage, while the air-to-ground station 101 is used not only for ground coverage but also for air coverage.

[0036] Since the antenna unit of the base station radiates upper and lower side lobes when transmitting signals, the upper side lobe of the first or second ground-to-ground signal is transmitted to the air, and the lower side lobe of the air signal is transmitted to the ground. Therefore, if the air network and the ground network are co-frequency, that is, the air signal and the second ground signal use the same carrier frequency, there will be co-frequency interference between the air network and the ground network.

[0037] Furthermore, if you want to solve the co-frequency interference between the air network and the ground network, the air network and the ground network can also use different frequency networking to avoid mutual interference and influence between the air and ground networks. However, if the air network and the ground network use different frequency networking, it is necessary to deploy two sets of networks with different carriers, which has a high construction cost.

[0038] Therefore, in order to reduce mutual interference between air-ground networks and reduce costs, in this embodiment, the first carrier frequency is different from the second carrier frequency, and both the air-ground station 101 and the ground station 102 adopt a single carrier configuration.

[0039] The single carrier configuration can be understood as a configuration mode of allocating a single carrier spectrum resource for data transmission and communication, so that a base station using the single carrier configuration can only use the same carrier frequency to transmit signals. That is, the first carrier frequency includes only one carrier frequency, and the second carrier frequency also includes only one carrier frequency.

[0040] For example, please refer to Figure 1, the air-to-ground station 101 uses only the first carrier frequency f1 to send the air-to-ground signal and the first ground-to-ground signal, and the ground station 102 uses only the second carrier frequency f2 to send the second ground-to-ground signal. In order to avoid mutual interference between the air-to-ground network and the ground network, the first carrier frequency f1 corresponding to the air-to-ground signal is different from the second carrier frequency f2 of the second ground-to-ground signal.

[0041] Furthermore, the air-to-air signal and the first ground-to-ground signal are configured as the same cell, so that the air-to-ground station 101 can share cell resources. For example, the air-to-air signal and the first ground-to-ground signal can share the air interface wireless resources of the cell.

[0042] It should be noted that Figure 1 Taking an air-ground station 101 and a ground station 102 as an example, if the air-ground networking system 100 includes multiple air-ground stations 101 and multiple ground stations 102, then for each air-ground station 101, the first carrier frequency corresponding to the air-ground station 101 is different from the second carrier frequency corresponding to all the ground stations 102.

[0043] In the above embodiment, since the air-to-ground networking system 100 includes an air-to-ground station 101 and a ground station 102, and the air-to-ground station 101 is used to transmit an air-to-ground signal and a first ground signal using a first carrier frequency, and the ground station 102 is used to transmit a second ground signal using a second carrier frequency, therefore, ground coverage can still be achieved using the first ground signal, and air coverage can be achieved using the air signal. In addition, since the first carrier frequency is different from the second carrier frequency, the co-frequency interference between the air network and the ground network can be reduced, so as to build an air communication network without affecting the ground communication network. Further, since both the air-to-ground station 101 and the ground station 102 adopt a single carrier configuration, the air signal and the first ground signal are configured as the same cell, therefore, under the condition of not expanding the carrier configuration, single-carrier hetero-frequency networking between the air network and the ground network can be achieved based on differentiated carrier deployment, so as to reduce the deployment cost of the air-to-ground networking system 100.

[0044] In an exemplary embodiment, optionally, the air-to-ground station 101 is used to transmit multiple air-to-air signals at multiple inclination angles in the vertical direction.

[0045] Figure 2 is a schematic diagram of vertical coverage in one embodiment, Figure 2 (a) is a schematic diagram showing the ground station 102 transmitting a second ground signal, Figure 2 (b) shows a schematic diagram of the air-to-ground station 101 sending an air-to-air signal and a first ground-to-ground signal.

[0046] Please refer to Figure 2 (a) and Figure 2(b) Since the vertical coverage angle of the air-to-air signal is large, that is, the coverage range of the air-to-air angle in the vertical direction is large, therefore, in this embodiment, the air-to-air signal sent by the air-to-ground station 101 can be transmitted in layers at multiple vertical angles.

[0047] The vertical direction is the direction perpendicular to the horizontal plane, and the vertical angle is the inclination angle between the air-to-air signal and the horizontal plane. In other words, the air-to-ground station 101 can transmit multiple air-to-air signals at multiple inclination angles in the vertical direction. For example, Figure 2 As shown in (b), the air-to-ground station 101 can use an inclination angle of 1 in the vertical direction to send an air-to-air signal 1, and use an inclination angle of 2 in the vertical direction to send an air-to-air signal 2. It should be noted that Figure 2 (b) Taking sending two air-to-air signals as an example, this embodiment does not limit the number of air-to-air signals transmitted.

[0048] In one embodiment, the number of vertical signals to the air can be determined according to antenna parameters of the air-to-ground station 101. Antenna parameters include but are not limited to amplitude and phase characteristics of an antenna unit.

[0049] In the above embodiment, since the air-to-ground station 101 can transmit multiple air-to-air signals at multiple inclination angles in the vertical direction, it is beneficial to air-to-air coverage to improve the communication quality of the air-to-air network.

[0050] In an exemplary embodiment, optionally, the air-ground networking system 100 may be a time division duplex system (TDD system) or a frequency division duplex system (FDD system).

[0051] In a TDD system, the air-to-air signal, the first ground-to-ground signal, and the second ground-to-ground signal may use a beam-forming narrow beam. In an FDD system, the air-to-air signal, the first ground-to-ground signal, and the second ground-to-ground signal may use a cell-level wide beam. In other words, the air-to-air signal, the first ground-to-ground signal, and the second ground signal may be beams generated using a beam-forming method or a non-beam-forming method.

[0052] Among them, narrow beam and wide beam are used to indicate the width of the horizontal plane of the beam. Taking a three-sector base station as an example, the half-power beam width of the horizontal plane of the wide beam can be around 65°, and the half-power beam width of the horizontal plane of the narrow beam can be around 10° to 20°.

[0053] In an exemplary embodiment, optionally, if the air-to-ground networking system 100 is a time division duplex system, the air-to-ground station 101 is used to transmit an SSB signal in a vertical direction using at least one inclination angle, and the air signal includes an SSB signal.

[0054] In this embodiment, if the air-to-ground networking system 100 is a TDD system, the synchronization and broadcast channel signal (Synchronization Signal Block, SSB) of the ground station 102 can use a horizontal multi-beam scanning method to send the synchronization and broadcast channel (Synchronization Signal Block, SSB) signal, that is, the second ground signal includes an SSB signal.

[0055] Figure 3 FIG. 1 is a schematic diagram of a time division duplex system in one embodiment, for example, Figure 3 As shown, the ground station 102 can transmit the second ground signal including the SSB signal by scanning seven beams in turn in the horizontal direction. Taking the ground station 102 as a three-sector base station as an example, the coverage range of the seven beams can be 120°.

[0056] Since the air-to-ground station 101 also transmits to the air, the air-to-air signal still includes the SSB signal. In one embodiment, the air-to-ground station 101 can send the SSB signal at the same tilt angle in the vertical direction. Please continue to refer to Figure 3 The air-to-ground station 101 can transmit a first ground signal including an SSB signal by scanning four beams in turn in the horizontal direction, and transmit an air signal including an SSB signal by scanning three beams in turn in the horizontal direction, so as to achieve double-layer stereoscopic coverage in space.

[0057] In one embodiment, the air-ground station 101 can also use multiple tilt angles in the vertical direction to send SSB signals. Figure 3 The air-to-ground station 101 can transmit a first ground signal including an SSB signal by scanning three beams alternately in the horizontal direction, and transmit an air signal 1 including an SSB signal by scanning two beams alternately in the horizontal direction based on an inclination angle 1, and transmit an air signal 2 including an SSB signal by scanning two beams alternately based on an inclination angle 2, so as to achieve three-layer stereoscopic coverage in space.

[0058] Combination Figure 3 It can be seen that if the air-to-ground networking system 100 is a TDD system, the SSB signal can perform two-dimensional scanning.

[0059] Further optionally, the coverage range of each SSB signal in the same horizontal direction is a preset coverage range. Continuing to take the air-to-ground station 101 as a three-sector base station as an example, in the double-layer stereo coverage, the coverage range of the four beams in the first ground signal is 120°, and the coverage range of the three beams in the air signal is 120°. In the three-layer stereo coverage, the coverage range of the three beams in the first ground signal is 120°, the coverage range of the two beams in the air signal 1 is 120°, and the coverage range of the two beams in the air signal 2 is 120°.

[0060] In one embodiment, in a TDD system, the traffic channel can still use beamforming technology to achieve mobile communications with ground users and air users.

[0061] In the above embodiment, the air-to-air signal includes an SSB signal. Since the air-to-ground station 101 is also used to transmit the SSB signal at multiple inclination angles in the vertical direction under the time division duplex system, the air-to-ground station 101 provided in this embodiment can be applicable to the time division duplex system.

[0062] In an exemplary embodiment, optionally, if the air-ground networking system 100 is a frequency division duplex system, the air-ground station 101 is used to simultaneously transmit an air signal and a first ground signal, the air signal includes a cell common signal and a service signal, and the first ground signal includes a cell common signal and a service signal.

[0063] In this embodiment, the air-ground networking system 100 may also be an FDD system. In the FDD system, both the air-ground station 101 and the ground station 102 use cell-level horizontal wide beams to transmit signals, and the air-ground and ground stations share the same cell resources.

[0064] Among them, the air-to-ground station 101 can use a downward-tilted wide beam to transmit a first ground signal, and at the same time use an upward-tilted wide beam to transmit an air signal to simultaneously achieve ground coverage and air coverage, while the ground station 102 can use a downward-tilted wide beam to transmit a second ground signal to achieve ground coverage.

[0065] Figure 4 FIG. 1 is a schematic diagram of a frequency division duplex system in an embodiment. Figure 4 As shown, the ground station 102 uses a cell-level wide beam to transmit the second ground signal. If two-layer stereoscopic coverage is to be achieved, the air-to-ground station 101 must use a cell-level wide beam to transmit the first ground signal, and also use a cell-level wide beam to transmit an air signal in the vertical direction. If three-layer stereoscopic coverage is to be achieved, the air-to-ground station 101 must use a cell-level wide beam to transmit the first ground signal, and also use a cell-level wide beam to transmit air signal 1 and air signal 2 in the vertical direction. Air signal 1 corresponds to inclination angle 1, and air signal 2 corresponds to inclination angle 2.

[0066] In this embodiment, air-to-air and ground-to-ground share the same cell resources, and the air-to-ground station 101 is used to transmit an air-to-air signal and a first ground-to-ground signal simultaneously. The air-to-air signal and the first ground-to-ground signal are transmitted simultaneously, that is, the air-to-air signal and the first ground-to-ground signal are transmitted at the same time. The air-to-air signal includes a cell common signal and a service signal, and the first ground signal includes a cell common signal and a service signal. Exemplarily, the air-to-ground station 101 can simultaneously transmit an air-to-air signal including a cell common signal and a first ground-to-ground signal including a cell common signal, and the air-to-ground station 101 can also simultaneously transmit an air-to-air signal including a service signal and a first ground-to-ground signal including a service signal.

[0067] The cell common signal refers to the signal on the common channel in the cell signal, and the service signal refers to the signal on the user channel. That is to say, the air-to-ground station 101 transmits signals to the air and to the ground simultaneously on the service channel and the user channel.

[0068] In the above embodiment, since the air-to-air signal includes a cell common signal and a service signal, and the first ground-to-ground signal includes a cell common signal and a service signal, if the air-to-ground networking system 100 is a frequency division duplex system, the air-to-ground station 101 is used to simultaneously transmit the air-to-air signal and the first ground signal. Therefore, the air-to-ground station 101 provided in this embodiment can also be applicable to the frequency division duplex system.

[0069] In an exemplary embodiment, optionally, the ground coverage range of the air-to-ground station 101 and the ground coverage range of the ground station 102 constitute a preset ground coverage range. The ground coverage range can indicate the effective coverage range of the base station on the ground, which may include but is not limited to the ground coverage radius. The preset ground coverage range can be set according to demand, for example, a continuous geographical area.

[0070] For example, assuming that the air-ground networking system 100 includes three air-ground stations 101 and five ground stations 102, the ground coverage of the three air-ground stations 101 and the ground coverage of the five ground stations 102 can together form a continuous geographical area. In this way, the air-ground networking system 100 will not affect the ground coverage, so as to achieve air communication without affecting the ground communication.

[0071] In an exemplary embodiment, optionally, the air coverage range of the air-to-ground station 101 constitutes a preset low-altitude coverage range. The air coverage range can indicate the range of effective coverage of the base station in the airspace, for example, a continuous low-altitude area. Exemplarily, assuming that the air-to-ground networking system 100 includes 3 air-to-ground stations 101 and 5 ground stations 102, the air coverage ranges of the 3 air-to-ground stations 101 can constitute a continuous low-altitude area. In this way, the air coverage of the air-to-ground networking system 100 can be achieved through the air-to-ground station 101.

[0072] In an exemplary embodiment, optionally, the number of air-ground stations 101 is less than the number of ground stations 102. Since there are various buildings and obstacles on the ground, and there are basically no objects blocking the air, the air coverage of the air-ground station 101 is usually greater than the ground coverage of the ground station 102. Therefore, the number of air-ground stations 101 in the air-ground networking system 100 is less than the number of ground stations 102. In this way, when fewer air-ground stations 101 are set, it is possible to achieve air communication without affecting ground communication.

[0073] In an exemplary embodiment, the air-to-ground station 101 is optionally a base station extracted from a ground cellular base station. For example, at least one base station can be extracted from each base station in the ground cellular base station as the air-to-ground station 101, and the other base stations in the ground cellular base station are used as the ground station 102.

[0074] Figure 5 FIG. 1 is a schematic diagram of another air-ground networking system in an embodiment. Figure 5 As shown, in an exemplary embodiment, Figure 5 FIG. 1 shows a case where the air-ground networking system 100 includes two air-ground stations 101 and eight ground stations 102. Figure 5 As shown, assuming that the ground cellular base station includes 10 base stations arranged in sequence, two of the base stations can be extracted as air-ground stations 101, and the remaining base stations are ground stations 102. Further, the air-ground networking system 100 includes ground stations 102a, 102b, 101a, 102c, 102d, 102e, 102g, 101b, 102g and 102h arranged in sequence. Among them, air-ground stations 101a and 101b are used for air-to-ground transmission and ground transmission, and ground stations 102a to 102h are used for ground transmission.

[0075] In the above embodiment, since the air-ground station 101 is a base station extracted from the ground cellular base station, the cost of deploying the air-ground station 101 can be reduced.

[0076] In an exemplary embodiment, optionally, the location of the air-ground station 101 is determined according to the ground coverage capability and air coverage capability of the base station in the air-ground networking system 100 .

[0077] The ground coverage capability can be used to indicate the signal propagation range and quality of the base station signal on the ground, which may include but not be limited to the ground coverage range, such as the ground coverage radius. The air coverage capability can be used to indicate the signal propagation range and quality of the base station signal in the air domain, which may include but not be limited to the air coverage range, such as the air coverage radius.

[0078] Optionally, the quantitative relationship between the air-ground station 101 and the ground station 102 in the air-ground networking system 100 can be determined based on the ground coverage capability and the air coverage capability, and then the position of the air-ground station 101 can be determined based on the quantitative relationship between the air-ground station 101 and the ground station 102.

[0079] Further optionally, a proportional relationship between the ground coverage capability and the air coverage capability can be determined based on the ground coverage capability and the air coverage capability, and the quantity relationship between the air-to-ground station 101 and the ground station 102 can be determined based on the proportional relationship.

[0080] Exemplarily, assuming that the air coverage radius is 3 kilometers and the ground coverage radius is 300 meters, the ratio between the ground coverage capability and the air coverage capability is 1 / 10, and then the square of the ratio can be determined to be 1 / 100, and 1 / 100 can also be understood as the ratio of the coverage area between the ground station 102 and the air-to-ground station 101. Furthermore, it can be determined that the quantitative relationship between the ground station 102 and the air-to-ground station 101 is approximately 100:1. In this way, an air-to-ground station 101 can be determined for every 100 ground stations 102, that is, the position of the air-to-ground station 101 is determined. Of course, the above example takes the determination of an air-to-ground station 101 for every 100 ground stations 102 as an example. In some embodiments, an air-to-ground station 101 can also be determined at intervals of other ground stations 102 that are close to 100.

[0081] In the above embodiment, since the position of the air-to-ground station can be determined according to the ground coverage capability and air coverage capability of the base station in the network, a relatively accurate air-to-ground station can be determined from the network according to the position of the air-to-ground station, which is conducive to achieving continuous air coverage and ground coverage.

[0082] Please continue to refer to Figure 1 to Figure 5 In an exemplary embodiment, taking the air-ground networking system 100 as a ground cellular base station as an example, the ground cellular base station includes multiple base stations. A part of the base stations in the cellular mobile network are extracted as air-ground stations 101, and the remaining base stations are used as ground stations 102.

[0083] The air-to-ground station 101 is used to transmit an air-to-air signal and a first ground-to-ground signal using a first carrier frequency, and the ground station 102 is used to transmit a second ground-to-ground signal using a second carrier frequency. The first carrier frequency is different from the second carrier frequency, and both the air-to-ground station 101 and the ground station 102 are configured with a single carrier to achieve single-carrier heterogeneous frequency networking of the ground network and the air network. For example, the ground station 102 only uses carrier 1 to transmit beams to the ground, while the air-to-ground station 101 uses carrier 2 to transmit beams to the ground and to the air at the same time.

[0084] Furthermore, the air-to-ground station 101 can transmit multiple air-to-air signals at multiple inclination angles in the vertical direction. Furthermore, the air-to-ground station 101 transmits the first air-to-ground signal and the air-to-air signal using one carrier, and the first air-to-ground signal and the air-to-air signal are configured as the same cell and share cell resources. Furthermore, the cellular mobile network can be a TDD system or an FDD system.

[0085] In this way, without affecting the continuous ground coverage, a set of base station networks can be used to simultaneously build a ground network and an air network, thereby achieving three-dimensional coverage of low-altitude airspace based on the cellular mobile network.

[0086] In an exemplary embodiment, a control method is also provided, which is described by applying the method to the above-mentioned air-to-ground station, and includes the following steps:

[0087] The antenna unit controlling the air-to-ground station transmits an air-to-air signal and a first ground-to-ground signal using a first carrier frequency; wherein the first carrier frequency is different from a second carrier frequency of the ground station in the network, and the ground station is used to transmit a second ground signal using the second carrier frequency; both the air-to-ground station and the ground station adopt a single carrier configuration, and the air-to-air signal and the first ground signal are configured as the same cell.

[0088] In this embodiment, please refer to Figure 1 , the air-ground station 101 includes an antenna unit ( Figure 1 (not shown). Furthermore, the air-to-ground station 101 transmits the air-to-ground signal and the first ground signal by controlling its own antenna unit to adopt the first carrier frequency to realize air-to-ground transmission and ground transmission. The first carrier frequency is different from the second carrier frequency used by the ground station in the network to transmit the second ground signal. Moreover, both the air-to-ground station 101 and the ground station 102 adopt a single carrier configuration, and the air-to-ground signal and the first ground signal are configured as the same cell.

[0089] That is to say, assuming that the ground station 102 only uses the second carrier frequency f2 to transmit the second ground signal, the air-to-ground station 101 will control its own antenna unit to only use the first carrier frequency f1 to transmit the first ground signal and the air signal, and f1≠f2, the air signal and the first ground signal are configured as the same cell.

[0090] Optionally, the air-to-ground station 101 may transmit the air-to-air signal and the first ground-to-ground signal using the first carrier frequency by controlling the amplitude and phase of the antenna unit. In some embodiments, the air-to-ground station 101 may transmit the air-to-air signal and the first ground-to-ground signal using beamforming.

[0091] The principle of the above control method can be referred to the embodiment of the above air-ground networking system, which will not be repeated here.

[0092] In the above control method, since the antenna unit of the air-to-ground station can be controlled to transmit the air signal and the first ground signal using the first carrier frequency, the ground coverage can still be achieved using the first ground signal, and the air coverage can be achieved using the air signal. In addition, since the ground station uses the second carrier frequency to transmit the second ground signal, and the first carrier frequency is different from the second carrier frequency of the ground station in the network, the second ground signal sent by the ground station and the air signal sent by the air-to-ground station are out of frequency, so that the co-frequency interference between the air network and the ground network can be reduced, so as to build an air communication network without affecting the ground communication network. Furthermore, since both the air-to-ground station and the ground station adopt a single carrier configuration, the air signal and the first ground signal are configured as the same cell, so that, without expanding the carrier configuration, it is possible to achieve single-carrier out-of-frequency networking between the air network and the ground network based on differentiated carrier deployment, so as to reduce the deployment cost of the air-to-ground networking system.

[0093] Based on the same inventive concept, the embodiment of the present application also provides a control device for implementing the control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in the control device embodiment provided below can refer to the limitations on the control method above, and will not be repeated here.

[0094] Figure 6 FIG. 1 is a block diagram of a control device in an embodiment. In an exemplary embodiment, Figure 6 As shown, a control device 600 that can be applied to the above-mentioned air-to-ground station 101 is provided, including:

[0095] The control module 601 is used to control the antenna unit of the air-to-ground station to transmit an air-to-air signal and a first ground-to-ground signal using a first carrier frequency; wherein the first carrier frequency is different from a second carrier frequency of the ground station in the network, and the ground station is used to transmit a second ground signal using the second carrier frequency; both the air-to-ground station and the ground station adopt a single carrier configuration, and the air-to-air signal and the first ground signal are configured as the same cell.

[0096] In the above control device, since the antenna unit of the air-to-ground station can be controlled to transmit the air signal and the first ground signal using the first carrier frequency, the ground coverage can still be achieved using the first ground signal, and the air coverage can be achieved using the air signal. In addition, since the ground station uses the second carrier frequency to transmit the second ground signal, and the first carrier frequency is different from the second carrier frequency of the ground station in the network, the second ground signal sent by the ground station and the air signal sent by the air-to-ground station are out of frequency, so that the co-frequency interference between the air network and the ground network can be reduced, so as to build an air communication network without affecting the ground communication network. Furthermore, since both the air-to-ground station and the ground station adopt a single carrier configuration, the air signal and the first ground signal are configured as the same cell, so that, without expanding the carrier configuration, it is possible to achieve single-carrier out-of-frequency networking between the air network and the ground network based on differentiated carrier deployment, so as to reduce the deployment cost of the air-to-ground networking system.

[0097] Each module in the above control device can be implemented in whole or in part by software, hardware or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module.

[0098] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0099] The antenna unit controlling the air-to-ground station transmits an air-to-air signal and a first ground-to-ground signal using a first carrier frequency; wherein the first carrier frequency is different from a second carrier frequency of the ground station in the network, and the ground station is used to transmit a second ground signal using the second carrier frequency; both the air-to-ground station and the ground station adopt a single carrier configuration, and the air-to-air signal and the first ground signal are configured as the same cell.

[0100] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0101] The antenna unit controlling the air-to-ground station transmits an air-to-air signal and a first ground-to-ground signal using a first carrier frequency; wherein the first carrier frequency is different from a second carrier frequency of the ground station in the network, and the ground station is used to transmit a second ground signal using the second carrier frequency; both the air-to-ground station and the ground station adopt a single carrier configuration, and the air-to-air signal and the first ground signal are configured as the same cell.

[0102] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited thereto.

[0103] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0104] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An air-ground networking system, characterized in that: The air-ground networking system comprises: An air-to-ground station, configured to transmit an air-to-ground signal and a first ground-to-ground signal using a first carrier frequency; A ground station, used for transmitting a second ground signal using a second carrier frequency; The first carrier frequency is different from the second carrier frequency, the air-to-ground station and the ground-to-ground station both adopt a single carrier configuration, and the air-to-air signal and the first ground-to-ground signal are configured as the same cell; The air-to-ground networking system is a time division duplex system or a frequency division duplex system; if the air-to-ground networking system is the time division duplex system, the air-to-ground station is used to transmit an SSB signal in a vertical direction using at least one inclination angle; the air-to-air signal includes the SSB signal; the coverage range of each of the SSB signals in the same horizontal direction is a preset coverage range; The position of the air-to-ground station is determined according to the quantitative relationship between the air-to-ground station and the ground station in the air-to-ground networking system, and the quantitative relationship is determined according to the ground coverage capability and air coverage capability of the base station in the air-to-ground networking system.

2. The system according to claim 1, characterized in that The air-to-ground station is used to transmit multiple air-to-air signals at multiple inclination angles in the vertical direction.

3. The system according to claim 1, characterized in that If the air-to-ground networking system is the frequency division duplex system, the air-to-ground station is used to simultaneously transmit the air-to-air signal and the first ground-to-ground signal; the air-to-air signal includes a cell common signal and a service signal, and the first ground signal includes the cell common signal and the service signal.

4. The system according to claim 1 or 2, characterized in that: The ground coverage range of the air-to-ground station and the ground coverage range of the ground-to-ground station constitute a preset ground coverage range.

5. The system according to claim 1 or 2, characterized in that: The number of the air-to-ground stations is less than the number of the ground-to-ground stations.

6. The system according to claim 5, characterized in that The air-ground station is a base station extracted from ground cellular base stations.

7. A control method, characterized in that: Applied to an air-to-ground station, the method comprises: Controlling the antenna unit of the air-to-ground station to transmit an air-to-air signal and a first ground-to-ground signal using a first carrier frequency; The first carrier frequency is different from the second carrier frequency of the ground station in the network, and the ground station is used to transmit a second ground signal using the second carrier frequency; the air-to-ground station and the ground station both use a single carrier configuration, and the air-to-ground signal and the first ground signal are configured as the same cell; The method further comprises: If the network is a time division duplex system, the SSB signal is transmitted at least one tilt angle in the vertical direction; the air signal includes the SSB signal; the coverage range of each of the SSB signals in the same horizontal direction is a preset coverage range; Among them, the position of the air-to-ground station is determined according to the quantitative relationship between the air-to-ground station and the ground station in the air-to-ground networking system, and the quantitative relationship is determined according to the ground coverage capability and air coverage capability of the base station in the air-to-ground networking system.

8. A control device, characterized in that: Applied to an air-to-ground station, the device comprises: A control module, used to control the antenna unit of the air-to-ground station to transmit an air-to-air signal and a first ground-to-ground signal using a first carrier frequency; The first carrier frequency is different from the second carrier frequency of the ground station in the network, and the ground station is used to transmit a second ground signal using the second carrier frequency; the air-to-ground station and the ground station both use a single carrier configuration, and the air-to-ground signal and the first ground signal are configured as the same cell; The device is also used for: If the network is a time division duplex system, the SSB signal is transmitted at least one tilt angle in the vertical direction; the air signal includes the SSB signal; the coverage range of each of the SSB signals in the same horizontal direction is a preset coverage range; Among them, the position of the air-to-ground station is determined according to the quantitative relationship between the air-to-ground station and the ground station in the air-to-ground networking system, and the quantitative relationship is determined according to the ground coverage capability and air coverage capability of the base station in the air-to-ground networking system.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to claim 7 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to claim 7 are implemented.

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