Satellite system ground gateway multi-technology system adaptation method and device

Abstract

The application discloses a satellite system ground gateway station multi-technology system adaptation method and device. The method comprises the following steps: in response to an adjustment instruction of a radio access and control subsystem, determining a technology system supported by the adjusted radio access and control subsystem, wherein the adjustment instruction is used for adjusting the radio access and control subsystem in communication with an antenna and radio frequency subsystem; according to the technology system, controlling an adapter to perform an adaptation operation on a communication signal transmitted between the radio access and control subsystem and the antenna and radio frequency subsystem, so that the communication signal matches the technology system, wherein the adaptation operation is used for realizing the adaptation of frequency and power between a radio frequency signal and a baseband intermediate frequency signal. The application solves the technical problem that the satellite application system in the related art is poor in flexibility of system upgrade and is limited in expansibility due to the close coupling between the design of a gateway radio frequency subsystem and a technology system adopted by a satellite system.

Description

Technical Field

[0001] This application relates to the field of satellite communication technology, and more specifically, to a method and apparatus for adapting multiple technical systems to a ground gateway station of a satellite system. Background Technology

[0002] Satellite mobile communication systems are essentially a type of microwave communication. Satellites act as relay stations, forwarding microwave signals and communicating between multiple ground stations to achieve seamless ground coverage. Satellites operate in orbits hundreds or even tens of thousands of kilometers away, providing a coverage area far greater than typical terrestrial mobile communication systems. In the event of natural disasters such as earthquakes, floods, or snowstorms, which often cause widespread disruption to terrestrial communications, satellite mobile communication becomes the only effective means of ensuring the smooth operation of rescue and relief efforts by firefighters and other relevant personnel. Furthermore, satellite mobile communication can provide strong security for specialized operations such as maritime law enforcement, water rescue, geological exploration, and forestry and ranching.

[0003] In related technologies, the design of the gateway station radio frequency subsystem in satellite application systems is tightly coupled with the technical system adopted by the satellite system. For example, in satellite mobile communication systems, the conversion between the access network baseband and radio frequency in the ground application system is strongly related to the satellite system, which makes the application system upgrade inflexible and scalable, and brings difficulties to the upgrade and iteration of the satellite system.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This application provides a method and apparatus for adapting ground gateway stations to multiple technologies in satellite systems, in order to at least solve the technical problems of poor flexibility and limited scalability in application system upgrades caused by the tight coupling between the design of the gateway station radio frequency subsystem and the technology system adopted by the satellite system in related satellite application systems.

[0006] According to one aspect of the embodiments of this application, a method for adapting multiple technical systems for a satellite system ground gateway station is provided, comprising: responding to an adjustment command from a radio access and control subsystem, determining the technical system supported by the adjusted radio access and control subsystem, wherein the adjustment command is used to adjust the radio access and control subsystem communicating with an antenna and radio frequency subsystem, and the technical system is used to characterize the operating mode of the radio access and control subsystem; according to the technical system, a control adapter performs an adaptation operation on the communication signals transmitted between the radio access and control subsystem and the antenna and radio frequency subsystem to match the communication signals with the technical system, wherein the communication signals include at least one of the following: a baseband intermediate frequency signal corresponding to the radio access and control subsystem, and a radio frequency signal corresponding to the antenna and radio frequency subsystem, and the adaptation operation is used to achieve frequency and power adaptation between the radio frequency signal and the baseband intermediate frequency signal.

[0007] Optionally, the method further includes: when the adjustment instruction is used to change the wireless access and control subsystem communicating with the antenna and radio frequency subsystem, the control adapter is changed from supporting the technical system corresponding to the wireless access and control subsystem before the change to supporting the technical system corresponding to the wireless access and control subsystem after the change; when the adjustment instruction is used to add a wireless access and control subsystem communicating with the antenna and radio frequency subsystem, the control adapter supports all technical systems corresponding to the original wireless access and control subsystem and the newly added wireless access and control subsystem.

[0008] Optionally, the technical system includes at least one of the following: Geostationary Orbit Mobile Radio (GMR) system, Non-Terrestrial Network (NTN) system, and Digital Video Broadcasting (DVB) system. Among them, the GMR system includes at least one of the following: GMR1, GMRPS, and GMR-13G; the NTN system includes at least one of the following: Narrowband Internet of Things (NB-IoT) NTN, Enhanced Machine Type Communication (eMTC) NTN, and New Radio (NR) NTN; and the DVB system includes at least one of the following: Digital Video Broadcasting-Satellite Backhaul Channel (DVB-RCS), Digital Video Broadcasting-Satellite-Second Generation (DVB-S2), and Digital Video Broadcasting-Satellite-Second Generation Extended (DVB-S2X).

[0009] Optionally, the adapter includes: a local oscillator module, a mixer, and a filter, wherein the local oscillator module is used to provide a local oscillation signal; the mixer is used to mix the communication signal with the local oscillation signal to achieve frequency conversion; and the filter is used to filter out unwanted frequency components in the signal to obtain a signal in a specific frequency band, wherein the filter includes at least one of the following: a bandpass filter and a tunable filter.

[0010] Optionally, the control adapter's adaptation operation for the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem includes: using a local oscillator module to generate a first local oscillator signal, wherein the signal frequency of the first local oscillator signal is lower than the signal frequency of the communication signal; using a mixer to mix the communication signal and the first local oscillator signal to obtain a first target signal; and using a filter to filter the first target signal to suppress intermodulation signals, wherein the filter includes a narrowband bandpass filter.

[0011] Optionally, the adaptation operation of the control adapter for the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem further includes: using a local oscillator module to generate a second local oscillator signal, wherein the signal frequency of the second local oscillator signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal and the second local oscillator signal to obtain a second target signal; and using a filter to filter the second target signal to suppress intermodulation signals, wherein the filter includes: a narrowband bandpass filter and a tunable filter.

[0012] Optionally, the adaptation operation of the control adapter for the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem further includes: using a local oscillator module to generate a third local oscillator signal, wherein the signal frequency of the third local oscillator signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal and the third local oscillator signal to obtain an intermediate frequency signal; using a filter to filter the intermediate frequency signal to suppress out-of-band signals, wherein the filter includes a wideband bandpass filter; and using a mixer to perform a second mixing on the filtered intermediate frequency signal to obtain a third target signal.

[0013] According to another aspect of the embodiments of this application, a multi-technology adaptation device for a satellite system ground gateway station is also provided, comprising: a demand judgment module, used to determine the technology system supported by the adjusted wireless access and control subsystem in response to an adjustment command from the wireless access and control subsystem, wherein the adjustment command is used to adjust the wireless access and control subsystem communicating with the antenna and radio frequency subsystem, and the technology system is used to characterize the working mode of the wireless access and control subsystem; and an adaptation adjustment module, used to control the adapter to perform an adaptation operation on the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem according to the technology system, so that the communication signals match the technology system, wherein the communication signals include at least one of the following: a baseband intermediate frequency signal corresponding to the wireless access and control subsystem, and a radio frequency signal corresponding to the antenna and radio frequency subsystem, and the adaptation operation is used to achieve frequency and power adaptation between the radio frequency signal and the baseband intermediate frequency signal.

[0014] According to another aspect of the embodiments of this application, a satellite system ground gateway station is also provided, which includes: an adapter and a controller corresponding to the adapter, wherein the controller is used for a multi-technology system adaptation method for the satellite system ground gateway station.

[0015] According to another aspect of the embodiments of this application, a non-volatile storage medium is also provided, the non-volatile storage medium including a stored computer program, wherein the device where the non-volatile storage medium is located executes a satellite system ground gateway station multi-technology system adaptation method by running the computer program.

[0016] According to another aspect of the embodiments of this application, a computer program product is also provided, including a computer program that, when executed by a processor, implements the steps of a method for adapting a satellite system ground gateway station to multiple technical systems.

[0017] In this embodiment, an adjustment command is used in response to the wireless access and control subsystem to determine the technical system supported by the adjusted wireless access and control subsystem. The adjustment command is used to adjust the wireless access and control subsystem communicating with the antenna and radio frequency subsystem, and the technical system is used to characterize the working mode of the wireless access and control subsystem. According to the technical system, the control adapter performs an adaptation operation on the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem to match the communication signals with the technical system. The communication signals include at least one of the following: the baseband intermediate frequency signal corresponding to the wireless access and control subsystem, and the radio frequency signal corresponding to the antenna and radio frequency subsystem. The adaptation operation is used to achieve the frequency and power adaptation between the radio frequency signal and the baseband intermediate frequency signal. By introducing the conversion capability between the flexibly adjustable adapter and the general conventional baseband processing module components, the goal of adapting to multiple systems and reusing existing gateway stations to achieve continuous upgrades and iterations is achieved. This solves the technical problem of poor flexibility and limited scalability of application system upgrades caused by the tight coupling between the gateway station radio frequency subsystem design and the technical system adopted by the satellite system in related satellite application systems. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a hardware structure block diagram of a computer terminal (or electronic device) for implementing a method for adapting to multiple technical systems of a satellite system ground gateway station, according to an embodiment of this application.

[0020] Figure 2This is a schematic diagram of a method for adapting a satellite system ground gateway station to multiple technical systems according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the communication architecture of a satellite system ground gateway station according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of a method flow for adapting to requirements according to an embodiment of this application;

[0023] Figure 5 This is a comparative schematic diagram of a T3 mixer and a dual-balanced mixer with two-tone intermodulation provided according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the structure of a satellite system ground gateway station multi-technology system adaptation device provided according to an embodiment of this application. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings 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 in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover 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.

[0027] In related technologies, the design of the gateway station radio frequency subsystem in satellite application systems is tightly coupled with the technical system adopted by the satellite system. For example, in satellite mobile communication systems, the conversion between the access network baseband and radio frequency in the ground application system is strongly related to the satellite system, which makes the application system upgrade inflexible and scalable, and brings difficulties to the upgrade and iteration of the satellite system.

[0028] To address the aforementioned issues, this application provides a flexible and scalable adaptation scheme that enables baseband-to-RF conversion at a satellite system ground gateway station. This scheme solves the problem of fixed adaptation between gateway station equipment capabilities and technical systems in related technologies. The application also provides corresponding implementation methods and peripheral solutions, which are described in detail below.

[0029] According to the embodiments of this application, a method embodiment for multi-technology adaptation of satellite system ground gateway stations is provided. It should be noted that the steps shown in the flowcharts in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0030] The methods and embodiments provided in this application can be executed on mobile terminals, computer terminals, or similar computing devices. Figure 1 A hardware block diagram of a computer terminal (or electronic device) for implementing a multi-technology adaptation method for ground gateway stations in a satellite system is shown. Figure 1 As shown, the computer terminal 10 (or electronic device) may include one or more processors 102 (shown as 102a, 102b, ..., 102n in the figure) 102 (processor 102 may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 104 for storing data, and a transmission device 106 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of a BUS bus), a network interface, a power supply, and / or a camera. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned electronic device. For example, computer terminal 10 may also include... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0031] It should be noted that the aforementioned one or more processors 102 and / or other data processing circuits are generally referred to herein as "data processing circuits". These data processing circuits may be embodied, in whole or in part, in software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuits may be a single, independent processing module, or may be integrated, in whole or in part, into any other element within the computer terminal 10 (or electronic device). As involved in the embodiments of this application, the data processing circuits serve as a processor control mechanism (e.g., selection of a variable resistor termination path connected to an interface).

[0032] The memory 104 can be used to store software programs and modules of application software, such as the program instruction / data storage device corresponding to the satellite system ground gateway station multi-technology system adaptation method in this embodiment of the application. The processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, thereby realizing the above-mentioned satellite system ground gateway station multi-technology system adaptation method. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0033] The transmission device 106 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the computer terminal 10. In one example, the transmission device 106 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device 106 may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0034] The display may be, for example, a touchscreen liquid crystal display (LCD) that allows the user to interact with the user interface of the computer terminal 10 (or electronic device).

[0035] Under the aforementioned operating environment, this application provides a method for adapting to multiple technical systems at a satellite system ground gateway station. Figure 2 This is a schematic diagram of a method for adapting a satellite system ground gateway station to multiple technologies, according to an embodiment of this application. Figure 2 As shown, the method includes the following steps:

[0036] Step S202: In response to the adjustment instruction of the wireless access and control subsystem, determine the technical system supported by the adjusted wireless access and control subsystem. The adjustment instruction is used to adjust the wireless access and control subsystem that communicates with the antenna and radio frequency subsystem, and the technical system is used to characterize the working mode of the wireless access and control subsystem.

[0037] Step S204: According to the technical system, the control adapter performs an adaptation operation on the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem to make the communication signals match the technical system. The communication signals include at least one of the following: the baseband intermediate frequency signal corresponding to the wireless access and control subsystem, and the radio frequency signal corresponding to the antenna and radio frequency subsystem. The adaptation operation is used to realize the frequency and power adaptation between the radio frequency signal and the baseband intermediate frequency signal.

[0038] Through the above steps, by introducing the conversion capability between a flexibly adjustable adapter and a general-purpose baseband processing module component, the goal of adapting to multiple systems and reusing existing gateway stations to achieve continuous upgrades and iterations is achieved. This solves the technical problem of poor flexibility and limited scalability in application system upgrades caused by the tight coupling between the gateway station radio frequency subsystem design and the technical system adopted by the satellite system in related satellite application systems.

[0039] The following section further describes the method for adapting satellite system ground gateway stations to multiple technical systems in steps S202 to S204 of the embodiments of this application.

[0040] Figure 3 This is a schematic diagram of the communication architecture of a satellite system ground gateway station according to an embodiment of this application, such as... Figure 3 As shown, the satellite system ground gateway station includes: an antenna feeder system, a wireless and radio frequency subsystem, a wireless access and control subsystem, an access network equipment management and maintenance subsystem, a support subsystem, a service subsystem, an operation monitoring subsystem, a clock reference source, a core network subsystem, and a wireless resource management and scheduling subsystem. It should be noted that, in this embodiment, a gateway adapter is added to the satellite system ground gateway station. This gateway adapter is responsible for transmitting and processing signals between the baseband intermediate frequency transceiver ports of the wireless and radio frequency subsystem of the satellite ground station and the wireless access and control system module, and is used for frequency and power adaptation of the signals.

[0041] In this embodiment, the control module corresponding to the adapter can be used to control the adapter to perform adaptation operations on the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem, so that the satellite system ground gateway station can flexibly adjust the wireless access and control subsystem to adapt to different communication needs and technical systems, as detailed below.

[0042] In some embodiments of this application, the method further includes the following steps: when the adjustment instruction is used to change the wireless access and control subsystem communicating with the antenna and radio frequency subsystem, the control adapter is changed from supporting the technical system corresponding to the wireless access and control subsystem before the change to supporting the technical system corresponding to the changed wireless access and control subsystem; when the adjustment instruction is used to add a wireless access and control subsystem communicating with the antenna and radio frequency subsystem, the control adapter supports all the technical systems corresponding to the original wireless access and control subsystem and the newly added wireless access and control subsystem.

[0043] Specifically, such as Figure 4 As shown, the steps for handling changes in the wireless access and control subsystem of a satellite system are as follows:

[0044] First, the gateway adapter is configured with a default wireless access and control subsystem. For example, wireless access and control subsystem 1 is set as the default system. In this implementation, the technical system corresponding to the default wireless access and control subsystem 1 is GMR (Geostationary Orbit (GEO) - Mobile Radio).

[0045] If there is a need to change the wireless access and control subsystem (e.g., upon receiving an adjustment command for the wireless access and control subsystem), the wireless access and control subsystem can be adjusted via the adapter control module. The module determines what adjustments are required based on the input adjustment request from the gateway adapter, including, but not limited to, the following possibilities:

[0046] 1) If it is necessary to replace the wireless access and control subsystem, that is, to change the wireless access and control subsystem that communicates with the antenna and radio frequency subsystem, the adapter control module can control the adapter to change from supporting the technology system corresponding to the previous wireless access and control subsystem to supporting the technology system corresponding to the new wireless access and control subsystem. For example, the default wireless access and control subsystem 1 can be replaced with wireless access and control subsystem 2, such as replacing the GMR system with the IoT NTN (Internet of Things Non-Terrestrial Network) system.

[0047] 2) If a wireless access and control subsystem needs to be added, that is, a new wireless access and control subsystem that communicates with the antenna and radio frequency subsystem, the control module can control the adapter to add the required wireless access and control subsystems in addition to the default wireless access and control subsystem 1. That is, the control adapter supports all the technical systems corresponding to the original wireless access and control subsystem and the newly added wireless access and control subsystem. In this embodiment, the number of wireless access and control subsystems that can be added can be expanded as needed. For example, in addition to the GMR system, an IoT NTN system and an NR NTN (New Radio Non-Terrestrial Network) system can be added.

[0048] 3) If the satellite system needs to be compatible with all wireless access and control subsystems, assuming there are n subsystems, the adapter control module can control the adapter to support all subsystems from 1 to n.

[0049] The aforementioned technical systems refer to the specific technologies and standards used in wireless communication systems. These technologies and standards define how the communication system operates, including signal modulation, coding, transmission, and reception. Technical systems can include different communication protocols, frequency usage, data rates, etc., which determine the system's performance and compatibility.

[0050] In some embodiments of this application, the technical system includes, but is not limited to:

[0051] 1) Geosynchronous orbit mobile radio (GMR) systems, including but not limited to: GMR1 (first-generation GMR system), GMRPS (packet switching service in GMR system), GMR-1 3G (3G version of GMR), etc.

[0052] 2) Non-terrestrial network NTN systems, including but not limited to: Narrowband Internet of Things Non-Terrestrial Network (NB-IoT NTN), Enhanced Machine Type Communication Non-Terrestrial Network (eMTC NTN), and New Radio Non-Terrestrial Network (NR NTN);

[0053] 3) Digital Video Broadcasting (DVB) systems, including but not limited to: Digital Video Broadcasting-Return Channel via Satellite (DVB-RCS), Digital Video Broadcasting-Satellite-Second Generation (DVB-S2), and Digital Video Broadcasting-Satellite-Second Generation Extended (DVB-S2X).

[0054] By supporting dynamic changes and additions to the technical infrastructure, this technical solution enhances the flexibility and scalability of ground gateway stations. For example, when switching from NB-IoT NTN to eMTC NTN, the adapter can automatically adjust mixer and filter parameters to adapt to the new frequency range and signal bandwidth, ensuring accurate signal conversion and transmission. This dynamic adjustment capability enables ground gateway stations to seamlessly integrate new communication technologies, meet ever-changing communication needs, and significantly improve service quality and user experience.

[0055] In some embodiments of this application, the adapter includes: a local oscillator module, a mixer, and a filter, wherein the local oscillator module is used to provide a local oscillation signal; the mixer is used to mix the communication signal with the local oscillation signal to achieve frequency conversion; and the filter is used to filter out unwanted frequency components in the signal to obtain a signal in a specific frequency band, wherein the filter includes at least one of the following: a bandpass filter and a tunable filter.

[0056] Specifically, the local oscillator module provides a local oscillation signal for frequency conversion by the mixer; the mixer mixes the received radio frequency signal with the local oscillator signal to achieve frequency conversion; the bandpass filter selects signals in a specific frequency band and filters out unwanted frequency components; the tunable filter can adjust the center frequency of the filter as needed to adapt to different technical systems.

[0057] In this embodiment, the mixer can be controlled by the adapter control module to interface with the corresponding wireless access and control subsystem baseband module, i.e., to perform adaptation operations on the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem. The adaptation operation is determined according to the requirements of the technical system, involving selecting one or more operations suitable for a specific technical system from a variety of optional operations. The technical system defines the operating mode of the wireless communication system, including signal modulation, coding, transmission, and reception, and the adaptation operation ensures that the communication signals can meet the requirements of these technical systems.

[0058] For example, for different technologies, such as geostationary mobile radio (GMR), non-terrestrial network (NTN), and digital video broadcasting (DVB), adaptation operations may include adjusting frequency, power, and filtering parameters to achieve compatibility between the radio frequency signal and the baseband intermediate frequency signal. These operations ensure signal compatibility and effective communication across different technologies.

[0059] The mixer frequency conversion scheme will be further introduced below.

[0060] In some embodiments of this application, the control adapter's adaptation operation for communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem includes the following steps: using a local oscillator module to generate a first local oscillator signal, wherein the signal frequency of the first local oscillator signal is lower than the signal frequency of the communication signal; using a mixer to mix the communication signal and the first local oscillator signal to obtain a first target signal; and using a filter to filter the first target signal to suppress intermodulation signals, wherein the filter includes a narrowband bandpass filter.

[0061] Specifically, the low local oscillator scheme can generate the desired signal by mixing with a local oscillator (e.g., the first local oscillator signal) at a frequency lower than the input and output frequencies, and suppress intermodulation signals through narrowband bandpass filtering. This scheme has a simple architecture, fewer internal components and external interfaces, high reliability, and requires less hardware assembly and debugging. Furthermore, this scheme has the lowest local oscillator and signal operating frequencies, and the amplifier and filter implementation is relatively simple.

[0062] In some embodiments of this application, the adaptation operation of the control adapter for the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem further includes the following steps: using a local oscillator module to generate a second local oscillator signal, wherein the signal frequency of the second local oscillator signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal and the second local oscillator signal to obtain a second target signal; and using a filter to filter the second target signal to suppress intermodulation signals, wherein the filter includes: a narrowband bandpass filter and a tunable filter.

[0063] Specifically, the high local oscillator single-pass mixing scheme can generate the desired signal by mixing with a local oscillator (e.g., a second local oscillator signal) at a frequency higher than the input and output frequencies. Intermodulation signal suppression is achieved through narrowband bandpass filtering or tunable filters. After mixing, this scheme results in fewer spurious signals falling within the band. Using this scheme can significantly reduce the number of custom filters required, further enhancing the versatility of the mixing module.

[0064] In some embodiments of this application, the adaptation operation of the control adapter for the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem further includes the following steps: using a local oscillator module to generate a third local oscillator signal, wherein the signal frequency of the third local oscillator signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal and the third local oscillator signal to obtain an intermediate frequency signal; using a filter to filter the intermediate frequency signal to suppress out-of-band signals, wherein the filter includes a wideband bandpass filter; and using a mixer to perform a second mixing on the filtered intermediate frequency signal to obtain a third target signal.

[0065] Specifically, a superheterodyne double mixing scheme can be used with a high local oscillator double mixing method, employing a broadband bandpass filter to suppress out-of-band signals. By optimizing the frequency conversion scheme, all M×N order intermodulation signals generated by mixing can fall outside the band, simplifying the filtering scheme, enhancing module versatility, and simplifying software control.

[0066] This application introduces a flexibly adjustable adapter that can interface with general wireless access and control subsystems. It can switch between and adapt to various technical systems as needed, and can be continuously upgraded and iterated based on existing gateway stations. The adapter control unit can quickly control the interface with the corresponding baseband module.

[0067] like Figure 5 As shown, taking the high local oscillator single-frequency mixing processing scheme as an example, a new type of high linearity T3 mixer with a high input third-order point (IIP3) and a high 1dB compression point can be used. Its diode switching nonlinear intermodulation performance is better, thus improving dynamic range spurious suppression. Through the design of dual phase-locked loop circuit, 100kHz small steps can be achieved for LTE (Long Term Evolution) and NR systems, suppressing the generation of small number spurious signals at specific frequency points and ensuring better phase noise and frequency stability.

[0068] The satellite system ground gateway station multi-technology adaptation method and apparatus provided in this application can flexibly adapt to the switching of different technology systems. By dynamically adjusting the adapter parameters, it effectively achieves frequency and power adaptation between radio frequency signals and baseband intermediate frequency signals, improving the compatibility and efficiency of the ground gateway station. This technology is particularly suitable for satellite communication scenarios that require support for multiple communication standards, such as mobile communication, Internet of Things, and broadcast television, significantly enhancing system flexibility and user service experience. In addition, through precise frequency conversion and filtering, it effectively reduces interference between signals, improving communication quality and stability.

[0069] According to an embodiment of this application, an embodiment of a satellite system ground gateway station multi-technology system adaptation device is also provided. Figure 6This is a schematic diagram of a multi-technology adaptation device for a satellite system ground gateway station, provided according to an embodiment of this application. Figure 6 As shown, the device includes:

[0070] The demand judgment module 60 is used to respond to the adjustment command of the wireless access and control subsystem and determine the technical system supported by the adjusted wireless access and control subsystem. The adjustment command is used to adjust the wireless access and control subsystem that communicates with the antenna and radio frequency subsystem, and the technical system is used to characterize the working mode of the wireless access and control subsystem.

[0071] The adaptation module 62 is used to control the adapter to perform adaptation operations on the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem according to the technical system, so that the communication signals match the technical system. The communication signals include at least one of the following: the baseband intermediate frequency signal corresponding to the wireless access and control subsystem and the radio frequency signal corresponding to the antenna and radio frequency subsystem. The adaptation operation is used to realize the frequency and power adaptation between the radio frequency signal and the baseband intermediate frequency signal.

[0072] Optionally, the satellite system ground gateway station multi-technology adaptation device is also used to: when the adjustment instruction is used to change the radio access and control subsystem communicating with the antenna and radio frequency subsystem, the control adapter is changed from supporting the technology system corresponding to the radio access and control subsystem before the change to supporting the technology system corresponding to the changed radio access and control subsystem; when the adjustment instruction is used to add a radio access and control subsystem communicating with the antenna and radio frequency subsystem, the control adapter supports all the technology systems corresponding to the original radio access and control subsystem and the newly added radio access and control subsystem.

[0073] Optionally, the technical system includes at least one of the following: Geostationary Orbit Mobile Radio (GMR) system, Non-Terrestrial Network (NTN) system, and Digital Video Broadcasting (DVB) system. Among them, the GMR system includes at least one of the following: GMR1, GMRPS, and GMR-13G; the NTN system includes at least one of the following: Narrowband Internet of Things (NB-IoT) NTN, Enhanced Machine Type Communication (eMTC) NTN, and New Radio (NR) NTN; and the DVB system includes at least one of the following: Digital Video Broadcasting-Satellite Backhaul Channel (DVB-RCS), Digital Video Broadcasting-Satellite-Second Generation (DVB-S2), and Digital Video Broadcasting-Satellite-Second Generation Extended (DVB-S2X).

[0074] Optionally, the adapter includes: a local oscillator module, a mixer, and a filter, wherein the local oscillator module is used to provide a local oscillation signal; the mixer is used to mix the communication signal with the local oscillation signal to achieve frequency conversion; and the filter is used to filter out unwanted frequency components in the signal to obtain a signal in a specific frequency band, wherein the filter includes at least one of the following: a bandpass filter and a tunable filter.

[0075] Optionally, the control adapter's adaptation operation for the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem includes: using a local oscillator module to generate a first local oscillator signal, wherein the signal frequency of the first local oscillator signal is lower than the signal frequency of the communication signal; using a mixer to mix the communication signal and the first local oscillator signal to obtain a first target signal; and using a filter to filter the first target signal to suppress intermodulation signals, wherein the filter includes a narrowband bandpass filter.

[0076] Optionally, the adaptation operation of the control adapter for the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem further includes: using a local oscillator module to generate a second local oscillator signal, wherein the signal frequency of the second local oscillator signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal and the second local oscillator signal to obtain a second target signal; and using a filter to filter the second target signal to suppress intermodulation signals, wherein the filter includes: a narrowband bandpass filter and a tunable filter.

[0077] Optionally, the adaptation operation of the control adapter for the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem further includes: using a local oscillator module to generate a third local oscillator signal, wherein the signal frequency of the third local oscillator signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal and the third local oscillator signal to obtain an intermediate frequency signal; using a filter to filter the intermediate frequency signal to suppress out-of-band signals, wherein the filter includes a wideband bandpass filter; and using a mixer to perform a second mixing on the filtered intermediate frequency signal to obtain a third target signal.

[0078] It should be noted that the modules in the above-mentioned satellite system ground gateway station multi-technology system adaptation device can be program modules (for example, a set of program instructions to implement a certain function) or hardware modules. For the latter, it can be manifested in the following forms, but is not limited to them: each of the above modules is manifested as a processor, or the functions of each of the above modules are implemented by a processor.

[0079] It should be noted that the satellite system ground gateway station multi-technology system adaptation device provided in this embodiment can be used to perform... Figure 2The satellite system ground gateway station multi-technology system adaptation method shown above is also applicable to the embodiments of this application, and will not be repeated here.

[0080] This application also provides a satellite system ground gateway station, which includes an adapter and a controller corresponding to the adapter. The controller is used for a multi-technology system adaptation method for the satellite system ground gateway station.

[0081] By integrating intelligent adapters and controllers, ground gateway stations achieve comprehensive support and efficient processing of multiple technology systems. For example, while supporting IoT communication, ground gateway stations can seamlessly switch to broadcast television signal transmission, meeting the communication needs of different user groups. This design not only improves the flexibility and compatibility of ground gateway stations but also optimizes resource allocation, reduces system maintenance costs, and enhances the overall competitiveness of satellite communication systems through intelligent controller management.

[0082] This application embodiment also provides a non-volatile storage medium, which includes a stored computer program. The device containing the non-volatile storage medium executes the following satellite system ground gateway station multi-technology adaptation method by running the computer program: In response to an adjustment command from the radio access and control subsystem, determining the technology system supported by the adjusted radio access and control subsystem, wherein the adjustment command is used to adjust the radio access and control subsystem communicating with the antenna and radio frequency subsystem, and the technology system is used to characterize the operating mode of the radio access and control subsystem; according to the technology system, a control adapter performs an adaptation operation on the communication signals transmitted between the radio access and control subsystem and the antenna and radio frequency subsystem to match the communication signals with the technology system, wherein the communication signals include at least one of the following: a baseband intermediate frequency signal corresponding to the radio access and control subsystem, and a radio frequency signal corresponding to the antenna and radio frequency subsystem; the adaptation operation is used to achieve frequency and power adaptation between the radio frequency signal and the baseband intermediate frequency signal.

[0083] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the satellite system ground gateway station multi-technology system adaptation method described in various embodiments of this application: responding to an adjustment command from the wireless access and control subsystem, determining the technology system supported by the adjusted wireless access and control subsystem, wherein the adjustment command is used to adjust the wireless access and control subsystem communicating with the antenna and radio frequency subsystem, and the technology system is used to characterize the operating mode of the wireless access and control subsystem; according to the technology system, a control adapter performs an adaptation operation on the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem to match the communication signals with the technology system, wherein the communication signals include at least one of the following: a baseband intermediate frequency signal corresponding to the wireless access and control subsystem, and a radio frequency signal corresponding to the antenna and radio frequency subsystem, and the adaptation operation is used to achieve frequency and power adaptation between the radio frequency signal and the baseband intermediate frequency signal.

[0084] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0085] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0086] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0087] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0088] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0089] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0090] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A method for adapting ground gateway stations of a satellite system to multiple technical systems, characterized in that, include: In response to an adjustment instruction from the wireless access and control subsystem, the technical system supported by the adjusted wireless access and control subsystem is determined, wherein the adjustment instruction is used to adjust the wireless access and control subsystem communicating with the antenna and radio frequency subsystem, and the technical system is used to characterize the operating mode of the wireless access and control subsystem. According to the aforementioned technical system, the control adapter performs an adaptation operation on the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem to match the communication signals with the technical system. The communication signals include at least one of the following: a baseband intermediate frequency (IF) signal corresponding to the wireless access and control subsystem, and a radio frequency (RF) signal corresponding to the antenna and RF subsystem. The adaptation operation is used to achieve frequency and power adaptation between the RF signal and the baseband IF signal. The adapter includes a local oscillator module, a mixer, and a filter. The local oscillator module provides a local oscillation signal. The mixer mixes the communication signal with the local oscillation signal to achieve frequency conversion. The filter removes unwanted frequency components from the signal to obtain a signal in a specific frequency band. The filter includes at least one of the following: a bandpass filter and a tunable filter.

2. The method for adapting multiple technologies to a satellite system ground gateway station according to claim 1, characterized in that, The method further includes: When the adjustment instruction is used to change the wireless access and control subsystem that communicates with the antenna and radio frequency subsystem, the adapter is controlled to change from supporting the technical system corresponding to the wireless access and control subsystem before the change to supporting the technical system corresponding to the wireless access and control subsystem after the change. When the adjustment instruction is used to add a wireless access and control subsystem that communicates with the antenna and radio frequency subsystem, the adapter is controlled to support all the technical systems corresponding to the original wireless access and control subsystem and the newly added wireless access and control subsystem.

3. The method for adapting multiple technologies to a satellite system ground gateway station according to claim 2, characterized in that, The technical system includes at least one of the following: Geosynchronous Orbit Mobile Radio (GMR) system, Non-Terrestrial Network (NTN) system, and Digital Video Broadcasting (DVB) system. The GMR system includes at least one of the following: GMR1, GMRPS, and GMR-1 3G. The NTN system includes at least one of the following: Narrowband Internet of Things (NB-IoT) NTN, Enhanced Machine Type Communication (eMTC) NTN, and New Radio (NR) NTN. The DVB system includes at least one of the following: Digital Video Broadcasting-Satellite Backhaul Channel (DVB-RCS), Digital Video Broadcasting-Satellite-Second Generation (DVB-S2), and Digital Video Broadcasting-Satellite-Second Generation Extended (DVB-S2X).

4. The method for adapting multiple technologies to a satellite system ground gateway station according to claim 1, characterized in that, The control adapter performs adaptation operations on the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem, including: The local oscillator module is used to generate a first local oscillator signal, wherein the signal frequency of the first local oscillator signal is lower than the signal frequency of the communication signal; The mixer is used to mix the communication signal with the first local oscillator signal to obtain the first target signal; The filter is used to filter the first target signal to suppress intermodulation signals, wherein the filter includes a narrowband bandpass filter.

5. The method for adapting multiple technologies to a satellite system ground gateway station according to claim 1, characterized in that, The control adapter's adaptation operation for the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem further includes: The local oscillator module is used to generate a second local oscillator signal, wherein the signal frequency of the second local oscillator signal is higher than the signal frequency of the communication signal; The mixer is used to mix the communication signal with the second local oscillator signal to obtain the second target signal; The filter is used to filter the second target signal to suppress intermodulation signals, wherein the filter includes: a narrowband bandpass filter and a tunable filter.

6. The method for adapting multiple technologies to a satellite system ground gateway station according to claim 1, characterized in that, The control adapter's adaptation operation for the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem further includes: Using the local oscillator module, a third local oscillator signal is generated, wherein the signal frequency of the third local oscillator signal is higher than the signal frequency of the communication signal; The mixer is used to mix the communication signal with the third local oscillator signal to obtain an intermediate frequency signal. The filter is used to filter the intermediate frequency signal to suppress out-of-band signals, wherein the filter includes a broadband bandpass filter; The mixer is used to perform secondary mixing on the filtered intermediate frequency signal to obtain the third target signal.

7. A multi-technology adaptation device for a satellite system ground gateway station, characterized in that, include: The demand judgment module is used to respond to the adjustment command of the wireless access and control subsystem and determine the technical system supported by the adjusted wireless access and control subsystem. The adjustment command is used to adjust the wireless access and control subsystem that communicates with the antenna and radio frequency subsystem, and the technical system is used to characterize the working mode of the wireless access and control subsystem. An adaptation module is used to control the adapter to perform an adaptation operation on the communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem according to the technical system, so that the communication signals match the technical system. The communication signals include at least one of the following: a baseband intermediate frequency signal corresponding to the wireless access and control subsystem, and a radio frequency signal corresponding to the antenna and radio frequency subsystem. The adaptation operation is used to achieve frequency and power adaptation between the radio frequency signal and the baseband intermediate frequency signal. The adapter includes: a local oscillator module, a mixer, and a filter. The local oscillator module is used to provide a local oscillation signal; the mixer is used to mix the communication signal and the local oscillation signal to achieve frequency conversion; the filter is used to filter out unwanted frequency components in the signal to obtain a signal in a specific frequency band. The filter includes at least one of the following: a bandpass filter and a tunable filter.

8. A ground gateway station for a satellite system, characterized in that, The satellite system ground gateway station includes: an adapter and a controller corresponding to the adapter, wherein the controller is used to execute the satellite system ground gateway station multi-technology system adaptation method according to any one of claims 1 to 6.

9. A non-volatile storage medium, characterized in that, The non-volatile storage medium includes a stored computer program, wherein the device containing the non-volatile storage medium executes the satellite system ground gateway station multi-technology system adaptation method according to any one of claims 1 to 6 by running the computer program.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the satellite system ground gateway station multi-technology system adaptation method according to any one of claims 1 to 6.

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