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

Abstract

The invention 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 wireless access and control subsystem, determining a technical system supported by the adjusted wireless access and control subsystem, the adjustment instruction being used for adjusting the wireless access and control subsystem communicating with an antenna and radio frequency subsystem; according to the technical system, the control adapter carries out adaptation operation on communication signals transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem so as to enable the communication signals to be matched with the technical system, and the adaptation operation is used for achieving adaptation of frequency and power between the radio frequency signals and the baseband intermediate frequency signals. The technical problems of poor flexibility and limited expansibility of application system upgrading caused by tight coupling of a gateway station radio frequency subsystem design and a technical system adopted by a satellite system in a satellite application system in related technologies are solved.

Description

Technical Field

[0001] The present application relates to the field of satellite communication technology, and in particular to a method and device for adapting multiple technology systems of a ground gateway station of a satellite system. Background Art

[0002] Satellite mobile communications systems are essentially a form of microwave communication, using satellites as relay stations to forward microwave signals. By communicating between multiple ground stations, they achieve seamless coverage of the Earth's surface. Satellites operate in orbit hundreds or even tens of thousands of kilometers away, providing a coverage area far greater than that of conventional terrestrial mobile communications systems. Natural disasters such as earthquakes, floods, and snowstorms often paralyze ground communications over large areas. Satellite mobile communications are the only effective means of ensuring the smooth operation of emergency response efforts by firefighters and other disaster relief personnel. Furthermore, satellite mobile communications can provide strong security for specialized operations such as maritime law enforcement, water rescue, geological exploration, and forestry and ranching.

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

[0004] To address the above-mentioned problems, no effective solutions have been proposed so far. Summary of the Invention

[0005] The embodiments of the present application provide a method and apparatus for adapting multiple technology systems of a ground gateway in a satellite system, to at least address the technical issues of poor flexibility and limited scalability in application system upgrades caused by the tight coupling of the design of the gateway radio frequency subsystem in related-art satellite application systems with the technology systems used by the satellite systems.

[0006] According to one aspect of an embodiment of the present application, a method for adapting multiple technology systems of a ground gateway station in a satellite system is provided, comprising: responding to an adjustment instruction of a wireless access and control subsystem, determining the technology system supported by the adjusted wireless access and control subsystem, wherein the adjustment instruction is used to adjust the wireless access and control subsystem that communicates 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; based on the technology system, controlling 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 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.

[0007] Optionally, the method also 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 control adapter changes 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 new wireless access and control subsystem that communicates 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: geosynchronous mobile radio GMR system, non-terrestrial network NTN system, digital video broadcasting DVB system, wherein the GMR system includes at least one of the following: GMR1, GMRPS, GMR-13G, the NTN system includes at least one of the following: narrowband Internet of Things non-terrestrial network NB-IoT NTN, enhanced machine type communication non-terrestrial network eMTC NTN, new radio non-terrestrial network NR NTN, and the DVB system includes at least one of the following: digital video broadcasting-satellite return channel DVB-RCS, digital video broadcasting-satellite-second generation DVB-S2, digital video broadcasting-satellite-second generation extension 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; the filter is used to filter out unnecessary 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 performs adaptation operations on the communication signal transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem, including: using a local oscillator module to generate a first local oscillation signal, wherein the signal frequency of the first local oscillation signal is lower than the signal frequency of the communication signal; using a mixer to mix the communication signal with the first local oscillation signal to obtain a first target signal; using a filter to filter the first target signal to suppress intermodulation signals, wherein the filter includes: a narrowband bandpass filter.

[0011] Optionally, the control adapter performs adaptation operations on the communication signal transmitted between the wireless access and control subsystem and the antenna and RF subsystem, and further includes: using a local oscillator module to generate a second local oscillation signal, wherein the signal frequency of the second local oscillation signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal with the second local oscillation signal to obtain a second target signal; 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 control adapter performs adaptation operations on the communication signal transmitted between the wireless access and control subsystem and the antenna and RF subsystem, and further includes: using a local oscillator module to generate a third local oscillation signal, wherein the signal frequency of the third local oscillation signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal with the third local oscillation 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 broadband bandpass filter; using a mixer to perform secondary mixing on the filtered intermediate frequency signal to obtain a third target signal.

[0013] According to another aspect of an embodiment of the present application, a multi-technology system adaptation device for a ground gateway station of a satellite system is also provided, including: a demand judgment module, used to respond to an adjustment instruction of the wireless access and control subsystem to determine the technology system supported by the adjusted wireless access and control subsystem, wherein the adjustment instruction is used to adjust the wireless access and control subsystem that communicates 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; an adaptation adjustment module, 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 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 an embodiment of the present application, a satellite system ground gateway is provided. The satellite system ground gateway includes: an adapter and a controller corresponding to the adapter, wherein the controller is used in a multi-technology system adaptation method for the satellite system ground gateway.

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

[0016] According to another aspect of the embodiments of the present application, a computer program product is provided, including a computer program, which, when executed by a processor, implements the steps of the multi-technology system adaptation method of a ground gateway station of a satellite system.

[0017] In an embodiment of the present application, a technical architecture supported by the adjusted wireless access and control subsystem is determined in response to an adjustment instruction from the wireless access and control subsystem. The adjustment instruction is used to adjust the wireless access and control subsystem communicating with the antenna and radio frequency subsystem, and the technical architecture is used to represent the operating mode of the wireless access and control subsystem. Based on the technical architecture, a control adapter is controlled to perform an adaptation operation on a communication signal transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem to match the communication signal with the technical architecture. The communication signal includes 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. By introducing conversion capabilities between a flexible and adjustable adapter and a universal conventional baseband processing module component, the goal of adapting to multiple architectures and reusing existing gateways for 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 of the gateway radio frequency subsystem design and the technical architecture used in related satellite application systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present 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 multi-technology system adaptation of a ground gateway station of a satellite system according to an embodiment of the present application;

[0020] Figure 21 is a schematic diagram of a method flow for multi-technology system adaptation of a ground gateway station in a satellite system according to an embodiment of the present application;

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

[0022] Figure 4 This is a schematic diagram of a method flow for adapting based on demand provided in an embodiment of the present application;

[0023] Figure 5 1 is a schematic diagram comparing two-tone intermodulation between a T3 mixer and a double-balanced mixer according to an embodiment of the present application;

[0024] Figure 6 This is a structural diagram of a multi-technology system adaptation device for a ground gateway station of a satellite system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

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

[0028] To address the aforementioned issues, the present application provides a flexible and scalable adaptation solution for baseband to RF conversion at a ground gateway station in a satellite system. This solution addresses the issue of fixed adaptation between gateway equipment capabilities and technical systems in related technologies, and provides corresponding implementation methods and peripheral solutions, which are described in detail below.

[0029] According to an embodiment of the present application, an embodiment of a method for adapting a ground gateway station of a satellite system to multiple technology systems is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0030] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Figure 1 The hardware structure block diagram of a computer terminal (or electronic device) for implementing a multi-technology system adaptation method for a ground gateway station of a satellite system is shown. Figure 1 As shown, the computer terminal 10 (or electronic device) may include one or more (illustrated as 102a, 102b, ..., 102n in the figure) processors 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), 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 the BUS bus), a network interface, a power supply and / or a camera. It will be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 1 More or fewer components than shown, or with Figure 1 Different configurations shown.

[0031] It should be noted that the one or more processors 102 and / or other data processing circuits described above may generally be referred to herein as "data processing circuitry". The data processing circuitry may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. In addition, the data processing circuitry may be a single independent processing module, or may be incorporated in whole or in part into any of the other components of the computer terminal 10 (or electronic device). As described in the embodiments of the present application, the data processing circuitry serves as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

[0032] Memory 104 can be used to store software programs and modules for application software, such as the program instructions / data storage device corresponding to the satellite system ground gateway multi-technology system adaptation method described in the embodiments of the present application. Processor 102 executes the software programs and modules stored in memory 104 to perform various functional applications and data processing, thereby implementing the satellite system ground gateway multi-technology system adaptation method described above. Memory 104 can include high-speed random access memory (RAM) and non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 104 may further include memory located remotely from processor 102, which can be connected to 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 configured to receive or transmit data via a network. A specific example of the aforementioned network may include a wireless network provided by the communications provider of the computer terminal 10. In one embodiment, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In another embodiment, the transmission device 106 may be a radio frequency (RF) module, which is configured to communicate with the Internet wirelessly.

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

[0035] In the above operating environment, the embodiment of the present application provides a multi-technology system adaptation method for a ground gateway station of a satellite system. Figure 2 FIG. 1 is a schematic diagram of a method flow for adapting a multi-technology system of a ground gateway station of a satellite system according to an embodiment of the present 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, determining a technical system supported by the adjusted wireless access and control subsystem, wherein 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 represent the working mode of the wireless access and control subsystem;

[0037] Step S204: Based on the technical system, the control adapter performs an adaptation operation on the communication signal transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem to match the communication signal with the technical system, wherein the communication signal includes 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.

[0038] Through the above steps, by introducing the conversion capability between a flexibly adjustable adapter and a universal conventional baseband processing module component, the goal of adapting to multiple systems and reusing existing gateways to achieve continuous upgrade and iteration is achieved. This solves the technical problem of poor flexibility and limited scalability in application system upgrades caused by the tight coupling of the gateway RF subsystem design and the technical system adopted by the satellite system in related technologies.

[0039] The following further introduces the multi-technology system adaptation method of the satellite system ground gateway in steps S202 to S204 of the embodiment of the present application.

[0040] Figure 3 is a schematic diagram of a communication architecture of a ground gateway station of a satellite system provided according to an embodiment of the present application, such as Figure 3 As shown, the satellite system ground gateway includes: an antenna feed system, a wireless and RF subsystem, a wireless access and control subsystem, an access network equipment management and maintenance subsystem, a support subsystem, a business 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 the embodiment of the present application adds a gateway adapter to the satellite system ground gateway. The gateway adapter is responsible for transmitting and processing signals between the wireless and RF subsystem of the satellite ground station and the baseband intermediate frequency transceiver port of the wireless access and control system module, and is used to adapt the frequency and power of the signal.

[0041] In this embodiment, the control module corresponding to the adapter can control the adapter to adapt 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 can flexibly adjust the wireless access and control subsystem to adapt to different communication requirements and technical systems, as follows.

[0042] In some embodiments of the present application, the method also includes the following steps: when the adjustment instruction is used to change the wireless access and control subsystem that communicates with the antenna and the radio frequency subsystem, the control adapter changes 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 new wireless access and control subsystem that communicates with the antenna and the 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.

[0043] Specifically, if Figure 4 As shown, the steps for processing changes in the radio access and control subsystem in the satellite system are as follows:

[0044] First, the gateway adapter sets a default wireless access and control subsystem, such as setting the wireless access and control subsystem 1 as the default system. In this embodiment, the technical system corresponding to the default wireless access and control subsystem 1 is GMR (Geostationary Orbit (GEO)-Mobile Radio).

[0045] If the wireless access and control subsystem requires changes (for example, receiving an adjustment instruction for the wireless access and control subsystem), the wireless access and control subsystem can be adjusted through the adapter control module. Based on the input adjustment requirements of the gateway adapter, the required adjustments are determined, including but not limited to the following possibilities:

[0046] 1) If the wireless access and control subsystem needs to be replaced, that is, the wireless access and control subsystem that communicates with the antenna and RF subsystem needs to be changed, the adapter control module can control the adapter 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. For example, the default wireless access and control subsystem 1 can be replaced with wireless access and control subsystem 2, for example, the GMR system can be replaced with an 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 RF subsystem is added, the control module can control the adapter to support the default wireless access and control subsystem 1, and can add the required wireless access and control subsystem, that is, 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. In the embodiment of the present application, 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, the IoT NTN system and the NR NTN (New Radio Non-Terrestrial Network) system can be added.

[0048] 3) If the satellite system needs to adapt to all wireless access and control subsystems, assuming that the number of all subsystems is n, the adapter control module can control the adapter to support all subsystems from 1 to n.

[0049] The technical regimes described above 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 regimes can include different communication protocols, frequency usage, data rates, and other factors, which determine system performance and compatibility.

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

[0051] 1) Geosynchronous 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) system, 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 technology architectures, this technical solution enhances the flexibility and scalability of ground gateways. For example, when switching from NB-IoT NTN to eMTC NTN, the adapter automatically adjusts mixer and filter parameters to accommodate the new frequency range and signal bandwidth, ensuring accurate signal conversion and transmission. This dynamic adjustment capability enables ground gateways to seamlessly integrate new communication technologies, meet evolving communication needs, and significantly improve service quality and user experience.

[0055] In some embodiments of the present 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; the filter is used to filter out unnecessary 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 is used to provide a local oscillation signal for the mixer to perform frequency conversion; the mixer is used to mix the received RF signal with the local oscillator signal to achieve frequency conversion; the bandpass filter is used to select signals in a specific frequency band and filter out unnecessary frequency components; the tunable filter can adjust the center frequency of the filter as needed to adapt to different technical systems.

[0057] In an embodiment of the present application, the adapter control module can be used to control the mixer to interface with the corresponding wireless access and control subsystem baseband module, that is, 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, which involves 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 signal can meet the requirements of these technical systems.

[0058] For example, for different technical systems, such as Geosynchronous Mobile Radio (GMR), Non-Terrestrial Network (NTN), and Digital Video Broadcasting (DVB), adaptation operations may include adjusting frequency, power, and filtering parameters to achieve adaptation between the RF signal and the baseband intermediate frequency signal. These operations ensure signal compatibility and effective communication across different technical systems.

[0059] The mixer frequency conversion scheme is further introduced below, as follows.

[0060] In some embodiments of the present application, the control adapter performs adaptation operations on the communication signal transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem, including the following steps: using a local oscillator module to generate a first local oscillation signal, wherein the signal frequency of the first local oscillation signal is lower than the signal frequency of the communication signal; using a mixer to mix the communication signal with the first local oscillation signal to obtain a first target signal; using a filter to filter the first target signal to suppress the intermodulation signal, wherein the filter includes: a narrowband bandpass filter.

[0061] Specifically, the low local oscillator solution uses a local oscillator (e.g., the first local oscillator) with a lower frequency than the input and output frequencies to generate the desired signal through mixing, and uses narrowband bandpass filtering to suppress intermodulation signals. This solution offers a simple architecture, a small number of internal components and external interfaces, high reliability, and minimal hardware assembly and debugging. Furthermore, this solution has the lowest operating frequencies for the local oscillator and signal, making amplifier and filter implementation relatively simple.

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

[0063] Specifically, a high-LO single-shot mixing scheme uses a local oscillator (LO) with a higher frequency than the input and output frequencies (e.g., a second local oscillator) to generate the desired signal. Intermodulation signals are then suppressed through narrowband bandpass filtering or tunable filters. This scheme reduces in-band spurious signals after mixing, significantly reducing the number of custom filters and further enhancing the versatility of the mixing module.

[0064] In some embodiments of the present application, the control adapter performs adaptation operations on the communication signals transmitted between the wireless access and control subsystem and the antenna and RF subsystem, and further includes the following steps: using a local oscillator module to generate a third local oscillation signal, wherein the signal frequency of the third local oscillation signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal with the third local oscillation 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 broadband bandpass filter; using a mixer to perform secondary mixing on the filtered intermediate frequency signal to obtain a third target signal.

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

[0066] The present embodiment introduces a flexible adapter that can be connected to a universal wireless access and control subsystem. It can be switched to adapt to various technical systems as needed, and can be continuously upgraded and iterated based on the existing gateway. The adapter control unit can quickly control the connection to the corresponding baseband module.

[0067] like Figure 5 As shown in the figure, taking the high local oscillator single-frequency mixing processing solution as an example, a new high-linearity T3 mixer with a high input third-order point (IIP3) and a high 1dB compression point can be used. Its diode switch nonlinear intermodulation performance is better, thereby improving the dynamic range and spurious suppression. The dual phase-locked loop circuit design realizes 100kHz small steps for LTE (Long Term Evolution) and NR systems, suppresses the generation of fractional spurious signals at specific frequencies, and ensures better phase noise and frequency stability.

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

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

[0070] a demand determination module 60, configured to determine, in response to an adjustment instruction from the wireless access and control subsystem, a technical architecture supported by the adjusted wireless access and control subsystem, wherein 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 architecture is used to characterize an operating mode of the wireless access and control subsystem;

[0071] The adaptation and adjustment 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 based on the technical system, so that the communication signals match the technical 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. The adaptation operation is used to achieve frequency and power adaptation between the radio frequency signal and the baseband intermediate frequency signal.

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

[0073] Optionally, the technical system includes at least one of the following: geosynchronous mobile radio GMR system, non-terrestrial network NTN system, digital video broadcasting DVB system, wherein the GMR system includes at least one of the following: GMR1, GMRPS, GMR-13G, the NTN system includes at least one of the following: narrowband Internet of Things non-terrestrial network NB-IoT NTN, enhanced machine type communication non-terrestrial network eMTC NTN, new radio non-terrestrial network NR NTN, and the DVB system includes at least one of the following: digital video broadcasting-satellite return channel DVB-RCS, digital video broadcasting-satellite-second generation DVB-S2, digital video broadcasting-satellite-second generation extension 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; the filter is used to filter out unnecessary 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 performs adaptation operations on the communication signal transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem, including: using a local oscillator module to generate a first local oscillation signal, wherein the signal frequency of the first local oscillation signal is lower than the signal frequency of the communication signal; using a mixer to mix the communication signal with the first local oscillation signal to obtain a first target signal; using a filter to filter the first target signal to suppress intermodulation signals, wherein the filter includes: a narrowband bandpass filter.

[0076] Optionally, the control adapter performs adaptation operations on the communication signal transmitted between the wireless access and control subsystem and the antenna and RF subsystem, and further includes: using a local oscillator module to generate a second local oscillation signal, wherein the signal frequency of the second local oscillation signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal with the second local oscillation signal to obtain a second target signal; 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 control adapter performs adaptation operations on the communication signal transmitted between the wireless access and control subsystem and the antenna and RF subsystem, and further includes: using a local oscillator module to generate a third local oscillation signal, wherein the signal frequency of the third local oscillation signal is higher than the signal frequency of the communication signal; using a mixer to mix the communication signal with the third local oscillation 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 broadband bandpass filter; using a mixer to perform secondary mixing on the filtered intermediate frequency signal to obtain a third target signal.

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

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

[0080] An embodiment of the present application further provides a satellite system ground gateway station, which includes: an adapter and a controller corresponding to the adapter, wherein the controller is used in a multi-technology system adaptation method for the satellite system ground gateway station.

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

[0082] An embodiment of the present application also provides a non-volatile storage medium, which includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the following satellite system ground gateway multi-technology system adaptation method by running the computer program: in response to an adjustment instruction of the wireless access and control subsystem, determining the technology system supported by the adjusted wireless access and control subsystem, wherein the adjustment instruction is used to adjust the wireless access and control subsystem that communicates 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; based on the technology system, the control adapter performs an adaptation operation on the communication signal transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem to match the communication signal with the technology system, wherein the communication signal includes 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.

[0083] An embodiment of the present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of the multi-technology system adaptation method for a ground gateway station of a satellite system described in each embodiment of the present application: in response to an adjustment instruction of the wireless access and control subsystem, determining the technology system supported by the adjusted wireless access and control subsystem, wherein the adjustment instruction is used to adjust the wireless access and control subsystem that communicates 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; based on the technology system, controlling the adapter to perform adaptation operations on the communication signal transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem to match the communication signal with the technology system, wherein the communication signal includes 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 serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0085] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description 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. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0087] The units described as separate components may or may not be physically separate, and 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 may be selected according to actual needs to achieve the purpose of the present embodiment.

[0088] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0089] If the integrated unit is implemented in the form of 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 the present application is essentially 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, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0090] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for adapting a multi-technology system of a ground gateway station in a satellite system, characterized in that: include: In response to an adjustment instruction of the wireless access and control subsystem, determining a technical regime supported by the adjusted wireless access and control subsystem, wherein 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 regime is used to characterize an operating mode of the wireless access and control subsystem; According to the technical system, the control adapter performs an adaptation operation on the communication signal transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem to match the communication signal with the technical system, wherein the communication signal includes 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.

2. The satellite system ground gateway multi-technology system adaptation method according to claim 1, characterized in that: The method further comprises: When the adjustment instruction is used to change the wireless access and control subsystem that communicates with the antenna and radio frequency subsystem, controlling the adapter to switch 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 the wireless access and control subsystem that communicates with the antenna and RF 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 satellite system ground gateway multi-technology system adaptation method according to claim 2, characterized in that: The technical system includes at least one of the following: geosynchronous mobile radio GMR system, non-terrestrial network NTN system, digital video broadcasting DVB system, wherein the GMR system includes at least one of the following: GMR1, GMRPS, GMR-1 3G, the NTN system includes at least one of the following: narrowband Internet of Things non-terrestrial network NB-IoT NTN, enhanced machine type communication non-terrestrial network eMTC NTN, new radio non-terrestrial network NR NTN, the DVB system includes at least one of the following: digital video broadcasting-satellite return channel DVB-RCS, digital video broadcasting-satellite-second generation DVB-S2, digital video broadcasting-satellite-second generation extension DVB-S2X.

4. The satellite system ground gateway multi-technology system adaptation method according to claim 1, characterized in that: 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; The filter is used to filter out unnecessary 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.

5. The satellite system ground gateway multi-technology system adaptation method according to claim 4, characterized in that: Controlling the adapter to adapt the communication signal transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem includes: Using the local oscillator module to generate a first local oscillation signal, wherein the signal frequency of the first local oscillation signal is lower than the signal frequency of the communication signal; Using the mixer, mixing the communication signal with the first local oscillation signal to obtain a 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.

6. The satellite system ground gateway multi-technology system adaptation method according to claim 4, characterized in that: Controlling 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 further includes: Using the local oscillator module to generate a second local oscillation signal, wherein the signal frequency of the second local oscillation signal is higher than the signal frequency of the communication signal; Using the mixer, mixing the communication signal with the second local oscillation signal to obtain a 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.

7. The satellite system ground gateway multi-technology system adaptation method according to claim 4, characterized in that: Controlling 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 further includes: Using the local oscillator module to generate a third local oscillation signal, wherein the signal frequency of the third local oscillation signal is higher than the signal frequency of the communication signal; Using the mixer, mixing the communication signal with the third local oscillation 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 a third target signal.

8. A multi-technology system adaptation device for a ground gateway station of a satellite system, characterized in that: include: a demand determination module, configured to determine, in response to an adjustment instruction of the wireless access and control subsystem, a technical system supported by the adjusted wireless access and control subsystem, wherein 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 an operating mode of the wireless access and control subsystem; An adaptation and adjustment module is used to control the adapter to perform adaptation operations on the communication signal transmitted between the wireless access and control subsystem and the antenna and radio frequency subsystem according to the technical system, so that the communication signal matches the technical system, wherein the communication signal includes 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.

9. A satellite system ground gateway, 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 7.

10. A non-volatile storage medium, characterized in that: The non-volatile storage medium includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the satellite system ground gateway multi-technology system adaptation method according to any one of claims 1 to 7 by running the computer program.

11. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the multi-technology system adaptation method of a ground gateway station of a satellite system according to any one of claims 1 to 7 are implemented.

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