Star chain satellite communication load forwarding system and forwarding method

Abstract

The invention relates to a star chain satellite communication load forwarding system and forwarding method. The system comprises a service signal forwarding module and a channel associated measurement and control forwarding module. The service signal forwarding module comprises a forward service signal forwarding unit and a reverse service signal forwarding unit which are parallel to each other; the channel associated measurement and control forwarding module comprises an uplink channel associated measurement and control forwarding unit and a downlink channel associated measurement and control forwarding unit which are parallel to each other; wherein the reverse service signal forwarding unit and the downlink associated measurement and control forwarding unit are combined through a multi-port network and jointly use the solid amplifier component; and the forward service signal forwarding unit and the uplink associated measurement and control forwarding unit are combined through a combiner and jointly use a signal processing component. According to the designed system, communication load and satellite measurement and control are integrated at the same time, all units in the system are subjected to parallel design, part of components are used together, and on the basis that the signal transmission efficiency is not reduced, redundant components are reduced, so that the size and weight of the system are reduced.

Description

Technical Field

[0001] The present invention relates to the field of satellite communication technology, and in particular to a Starlink satellite communication payload forwarding system and forwarding method. Background Art

[0002] Satellite communication payload is one of the most critical components of communication satellites, responsible for the core processing tasks of the entire satellite communication business. With the rapid growth of demand for direct connection and communication between mobile devices and communication satellites, the market demand for high-throughput communication satellites is also increasing.

[0003] In satellite communication payloads, transponders are key components, which are mainly divided into transparent transponders and regenerative transponders. Transparent transponders are widely used in satellite communication payloads due to their simple logical structure, high reliability and low power consumption. They can efficiently receive and forward signals to meet large-scale communication needs. Regenerative transponders have more complex signal processing capabilities and can demodulate and remodulate signals to improve signal quality and coverage.

[0004] At the same time, the satellite measurement and control system is the most important communication system in the satellite control process, responsible for the ground station to send orbit control, attitude adjustment and other instructions to the satellite. The system has extremely high requirements for reliability to ensure the stable operation of the satellite in orbit.

[0005] Currently, most satellite communication payloads and satellite tracking and control systems are independent communication systems. Although this independence provides flexibility in design, it also leads to an increase in the size and weight of the satellite, thereby increasing the launch cost. For Starlink satellites, this design architecture not only increases the difficulty of launching multiple satellites at the same time, but also increases the overall launch cost. Summary of the invention

[0006] Based on this, it is necessary to provide a Starlink satellite communication payload forwarding system and forwarding method that is small in size, light in weight, and integrates communication payload and satellite measurement and control to address the above technical problems.

[0007] A Starlink satellite communication payload forwarding system, the system comprising: a service signal forwarding module and a track-associated measurement and control forwarding module; The service signal forwarding module includes a parallel forward service signal forwarding unit and a reverse service signal forwarding unit; the on-link measurement and control forwarding module includes a parallel uplink on-link measurement and control forwarding unit and a downlink on-link measurement and control forwarding unit; wherein the reverse service signal forwarding unit and the downlink on-link measurement and control forwarding unit are combined through a multi-port network and use fixed-place components together; the forward service signal forwarding unit and the uplink on-link measurement and control forwarding unit are combined through a combiner and use signal processing components together.

[0008] A Starlink satellite communication payload forwarding method, the method comprising: Step 201, designing a Starlink satellite communication payload forwarding system, including a service signal forwarding module and a track-link measurement and control forwarding module; wherein the service signal forwarding module includes a parallel forward service signal forwarding unit and a reverse service signal forwarding unit; the track-link measurement and control forwarding module includes a parallel uplink track-link measurement and control forwarding unit and a downlink track-link measurement and control forwarding unit; Step 202: When it is necessary to forward the forward service signal, each transceiver antenna sends the received QV band multi-beam service signal to the forward service signal forwarding unit for combining and Ku band frequency conversion processing to obtain a Ku band multi-beam service signal; multi-beam separation is performed on the Ku band multi-beam service signal, and the separated Ku band multi-beam service signal is forwarded to the ground user terminal; Step 203, when it is necessary to forward the uplink tracking and control signal, each transceiver antenna sends the received QV band single beam tracking and control signal to the uplink tracking and control forwarding unit for combining and Ku band frequency conversion processing to obtain a Ku band single beam tracking and control signal; the Ku band single beam tracking and control signal is frequency converted again to obtain an S band single beam tracking and control signal; and the S band single beam tracking and control signal is sent to the satellite service system; Step 204: When reverse service signal forwarding is required, the Ku-band multi-beam service signal is sent to the reverse service signal forwarding unit for QV-band frequency conversion processing, combining, and power division amplification, and then sent to the corresponding ground gateway through each transceiver antenna; Step 205, when it is necessary to forward the downlink path tracking and control signal, the S-band single-beam path tracking and control signal is sent to the downlink path tracking and control forwarding unit for QV-band frequency conversion processing, combining, and power division amplification processing, and then sent to the corresponding ground signal gateway through each transceiver antenna.

[0009] Compared with the prior art, the Starlink satellite communication payload forwarding system and forwarding method provided by the present invention have the following effects: 1. The system of the present invention can forward the communication load service signal and the on-line measurement and control signal at the same time, which improves the functional integration of the communication load forwarding system and expands the application of the communication load forwarder system. The modular design has the advantages of clear functional division and easy independent optimization and upgrading. When designing, the units are designed in parallel, which can improve the processing capacity and response speed of the system and improve the overall communication efficiency.

[0010] 2. The reverse service signal forwarding unit and the downlink associated measurement and control forwarding unit are combined through a multi-port network and use the fixed-place components together; the forward service signal forwarding unit and the uplink associated measurement and control forwarding unit are combined through a combiner and use the signal processing components together, which can simplify the signal processing path, reduce the complexity of the system, and reduce the setting of redundant components without reducing the signal transmission efficiency, so as to achieve the purpose of reducing the volume and weight of the system and reducing costs.

[0011] 3. Through the service signal forwarding module, the communication load service signal is forwarded by multi-beam at the same time, thereby improving the service capacity of the communication load; through the on-line measurement and control forwarding module, the on-line measurement and control signal is forwarded, which can form a backup with the conventional measurement and control system, thereby improving the reliability of the entire communication load.

[0012] 4. It can support multiple bands, can work effectively in highly dynamic and complex satellite communication environments, and has good adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of a Starlink satellite communication payload forwarding system framework in one embodiment; Figure 2 Schematic diagram of the specific structure of the Starlink satellite communication payload forwarding system in one embodiment.

[0015] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] It should be noted that the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0018] It can be understood that the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0019] The following will describe the implementation of the present invention in detail with reference to the accompanying drawings in the embodiment diagram of the present invention.

[0020] Example 1 This embodiment discloses a Starlink satellite communication payload forwarding system that can support multiple bands, can work effectively in highly dynamic and complex satellite communication environments, and has good adaptability. It improves the functional integration of the communication payload forwarding system by forwarding the payload service signal and the on-board measurement and control signal at the same time. And the modular design has the advantages of clear functional division and easy independent optimization and upgrading. In addition, when designing, the parallel design of each unit can improve the system's processing power and response speed, and improve the overall communication efficiency.

[0021] During the design, the reverse service signal forwarding unit and the downlink associated measurement and control forwarding unit are combined through a multi-port network, and the fixed-place components are used together; the forward service signal forwarding unit and the uplink associated measurement and control forwarding unit are combined through a combiner, and the signal processing components are used together. This can simplify the signal processing path, reduce the complexity of the system, and reduce the setting of redundant components without reducing the signal transmission efficiency, so as to achieve the purpose of reducing the volume and weight of the system and reducing costs.

[0022] In addition, the on-line measurement and control signals are forwarded through the on-line measurement and control forwarding module, which can form a backup with the conventional measurement and control system and improve the reliability of the entire communication load.

[0023] like Figure 1As shown, a framework diagram of a Starlink satellite communication payload forwarding system is provided, which mainly includes: a service signal forwarding module and an on-link measurement and control forwarding module; the service signal forwarding module includes a parallel forward service signal forwarding unit and a reverse service signal forwarding unit; the on-link measurement and control forwarding module includes a parallel uplink on-link measurement and control forwarding unit and a downlink on-link measurement and control forwarding unit; wherein, the reverse service signal forwarding unit and the downlink on-link measurement and control forwarding unit are combined through a multi-port network and use fixed-place components together; the forward service signal forwarding unit and the uplink on-link measurement and control forwarding unit are combined through a combiner and use signal processing components together.

[0024] It can be understood that each unit in the present invention adopts a transparent forwarding working mode for data transmission, which makes the forwarding process of the data packet transparent to the user, without adding additional configuration or changes; at the same time, it can flexibly adjust the network topology or add new network equipment. In addition, the transparent forwarding working mode can monitor and filter traffic without changing the existing traffic pattern, thereby improving the security of signal transmission. Among them, the forward service signal forwarding unit and the reverse service signal forwarding unit are both multi-beam signal transparent forwarding, and the uplink on-link measurement and control forwarding unit and the downlink on-link measurement and control forwarding unit are single-beam signal transparent forwarding.

[0025] Specifically, the forward service signal forwarding unit includes a combiner, a signal processing component and a forward filter connected in sequence. Each transceiver antenna sends the received QV band multi-beam service signal to the combiner; the combiner combines each QV band multi-beam service signal and sends it to the signal processing component for processing to obtain a Ku band multi-beam service signal; the Ku band multi-beam service signal is separated by the forward filter and forwarded to the ground user terminal.

[0026] The uplink tracking control forwarding unit includes a combiner, a signal processing component and an uplink frequency converter connected in sequence. Each transceiver antenna sends the received QV-band single-beam tracking control signal to the combiner; the combiner combines each QV-band single-beam tracking control signal and sends it to the signal processing component for processing to obtain a Ku-band single-beam tracking control signal; the Ku-band single-beam tracking control signal is converted by the uplink frequency converter to obtain an S-band single-beam tracking control signal, and then the S-band single-beam tracking control signal is sent to the satellite service system.

[0027] The reverse service signal forwarding unit includes a reverse processing component, a multi-port network and a fixed amplifier component connected in sequence. The reverse processing component receives the Ku-band multi-beam service signal and processes the Ku-band multi-beam service signal to obtain the QV-band multi-beam service signal; then the reverse processing component transmits the QV-band multi-beam service signal to the multi-port network, combines it with the signal transmitted by the downlink tracking measurement and control forwarding unit, and obtains the combined QV-band multi-beam service signal; the combined QV-band multi-beam service signal is split into a fixed amplifier component for amplification and processing, and then sent to the corresponding ground signal gateway through each transceiver antenna.

[0028] The downlink on-link measurement and control forwarding unit includes a downlink frequency converter, a multi-port network and a fixed amplifier component which are connected in sequence; the downlink frequency converter receives an S-band single-beam on-link measurement and control signal, and processes the S-band single-beam on-link measurement and control signal to obtain a QV-band single-beam on-link measurement and control signal; the QV-band single-beam on-link measurement and control signal is transmitted to the multi-port network, and combined with the signal transmitted by the reverse business signal forwarding unit to obtain the combined QV-band single-beam on-link measurement and control signal; the combined QV-band single-beam on-link measurement and control signal is power-divided to the fixed amplifier component for amplification processing, and then sent to the corresponding ground signal gateway through each transceiver antenna.

[0029] Among them, the signal processing component includes a frequency converter and a power divider; the frequency converter receives the signal sent by the combiner and performs frequency conversion processing, and then sends the frequency-converted signal to the power divider for power division processing, and then transmits it to the forward filter or the uplink frequency converter for processing. The reverse processing component includes a reverse filter and a reverse frequency converter; the reverse filter receives the signal sent by the Ku-band receiving phased array and performs filtering processing, and then transmits the filtered signal to the reverse frequency converter for frequency conversion processing. The solid-state amplifier component includes two solid-state power amplifiers, and the specific number corresponds to the number of transceiver antennas. Each solid-state power amplifier amplifies the signal after the combiner processing. In addition, a low-noise amplifier component is also provided before the combiner; the low-noise amplifier component performs noise filtering on the signals received by each transceiver antenna and transmits them to the combiner for combining. The low-noise amplifier component includes more than two low-noise amplifiers, the specific number of which corresponds to the number of transceiver antennas, and each low-noise amplifier performs noise filtering on the signals received by each antenna.

[0030] It is worth noting that the number of ports of the multi-port network is set according to actual needs. In this embodiment, a four-port network is used to combine signals.

[0031] Combination Figure 2As shown, this embodiment has two transceiver antennas, so two low-noise amplifiers and two solid-state power amplifiers are correspondingly provided, and the Ku-band phased array includes a Ku-band receiving phased array and a Ku-band transmitting phased array.

[0032] In the forward service signal forwarding unit, the input end of the first low noise amplifier is connected to the output end of the first transceiver antenna, and the input end of the second low noise amplifier is connected to the output end of the second transceiver antenna, so as to filter the signals received by the transceiver antennas respectively. The output end of the first low noise amplifier and the output end of the second low noise amplifier are connected to the input end of the combiner, the output end of the combiner is connected to the input end of the frequency converter, the output end of the frequency converter is connected to the input end of the power divider, and the output end of the power divider is connected to the input end of the forward filter.

[0033] In the uplink on-line measurement and control forwarding unit, the input end of the first low noise amplifier is connected to the output end of the first transceiver antenna, and the input end of the second low noise amplifier is connected to the output end of the second transceiver antenna, for respectively filtering the signals received by the transceiver antennas. The output end of the first low noise amplifier and the output end of the second low noise amplifier are connected to the input end of the combiner, the output end of the combiner is connected to the input end of the frequency converter, the output end of the frequency converter is connected to the input end of the power divider, and the output end of the power divider is connected to the input end of the uplink frequency converter.

[0034] In the reverse service signal forwarding unit, the output end of the reverse filter is connected to the input end of the reverse frequency converter, the output end of the reverse frequency converter is connected to the input end of the multi-port network, and the output end of the multi-port network is respectively connected to the input ends of the first solid-state power amplifier and the second solid-state power amplifier.

[0035] In the downlink associated measurement and control forwarding unit, the output end of the downlink frequency converter is connected to the input end of the multi-port network, and the output end of the multi-port network is respectively connected to the input ends of the first solid-state power amplifier and the second solid-state power amplifier.

[0036] During operation, when it is necessary to forward the forward service signal, the forward service signal is transparently forwarded through the forward service signal forwarding unit. Specifically, the first transceiver antenna and the second transceiver antenna respectively receive the QV band multi-beam service signal sent from the ground gateway, and send the QV band multi-beam service signal received by each to the first low noise amplifier and the second low noise amplifier respectively. The first low noise amplifier and the second low noise amplifier respectively filter the received QV band multi-beam service signal, and then send it to the combiner for combining. The QV band multi-beam service signal after combining is subjected to Ku-band frequency conversion processing by the frequency converter to obtain the Ku-band multi-beam service signal. The Ku-band multi-beam service signal is subjected to power division processing by the power divider and then transmitted to the forward filter for multi-beam separation, and finally forwarded to the ground user terminal through the Ku-band transmitting phased array.

[0037] When it is necessary to forward the uplink on-link measurement and control signal, the uplink on-link measurement and control signal is transparently forwarded through the uplink on-link measurement and control forwarding unit. Specifically, the first transceiver antenna and the second transceiver antenna respectively receive the QV-band single-beam on-link measurement and control signal sent from the ground gateway, and send the received QV-band single-beam on-link measurement and control signal to the first low-noise amplifier and the second low-noise amplifier respectively. The first low-noise amplifier and the second low-noise amplifier respectively filter the received QV-band single-beam on-link measurement and control signal, and then send it to the combiner for combining. The QV-band single-beam on-link measurement and control signal after combining is subjected to Ku-band frequency conversion processing by the frequency converter to obtain a Ku-band single-beam on-link measurement and control signal. The Ku-band single-beam track-and-track tracking and control signal is transmitted to the uplink frequency converter after power division processing by the power divider. The uplink frequency converter performs S-band frequency conversion processing on the Ku-band single-beam track-and-track tracking and control signal to obtain the S-band single-beam track-and-track tracking and control signal, and then outputs the S-band single-beam track-and-track tracking and control signal to the satellite service system.

[0038] When it is necessary to forward the reverse service signal, the reverse service signal is transparently forwarded through the reverse service signal forwarding unit. Specifically, the Ku-band receiving phased array receives the Ku-band multi-beam service signal sent from the ground user terminal, and then sends the Ku-band multi-beam service signal to the reverse filter for filtering. The filtered Ku-band multi-beam service signal is subjected to QV-band frequency conversion processing by the reverse frequency converter to obtain the QV-band multi-beam service signal. Then the reverse frequency converter sends the QV-band multi-beam service signal to the multi-port network, and combines it with the signal transmitted by the downlink measurement and control forwarding unit to obtain the combined QV-band multi-beam service signal. The combined QV-band multi-beam service signal is distributed to the first solid-state power amplifier and the second solid-state power amplifier after power division. The first solid-state power amplifier and the second solid-state power amplifier respectively amplify the distributed signals and send them to the first transceiver antenna and the second transceiver antenna respectively; finally, the multi-beam signal is forwarded to the corresponding ground gateway through the first transceiver antenna and the second transceiver antenna.

[0039] When it is necessary to forward the downlink path-by-path measurement and control signal, the downlink path-by-path measurement and control signal is transparently forwarded through the downlink path-by-path measurement and control forwarding unit. Specifically, the satellite service system sends the S-band single-beam path-by-path measurement and control signal to the downlink frequency converter, and the downlink frequency converter performs QV-band frequency conversion processing on the S-band single-beam path-by-path measurement and control signal to obtain the QV-band single-beam path-by-path measurement and control signal. Then the downlink frequency converter sends the QV-band single-beam path-by-path measurement and control signal to the multi-port network, and after combining it with the signal transmitted by the reverse business signal forwarding unit, the combined QV-band single-beam path-by-path measurement and control signal is obtained. The combined QV-band single-beam path-by-path measurement and control signal is distributed to the first solid-state power amplifier and the second solid-state power amplifier after power division. The first solid-state power amplifier and the second solid-state power amplifier respectively amplify the distributed signals and send them to the first transceiver antenna and the second transceiver antenna respectively; finally, the single-beam path-by-path measurement and control signal is forwarded to the corresponding ground signal gateway through the first transceiver antenna and the second transceiver antenna.

[0040] It can be seen that the forward service signal forwarding unit and the uplink on-line measurement and control forwarding unit share the low-noise amplifier components, combiner, frequency converter and power divider; the reverse service signal forwarding unit and the downlink on-line measurement and control forwarding unit share the multi-port network and fixed-amplification components. On the basis of realizing the simultaneous forwarding of communication load service signals and on-line measurement and control signals, the signal processing path is simplified, the complexity of the system is reduced, and the setting of redundant components is reduced, achieving the purpose of reducing the system volume and weight and reducing costs.

[0041] Example 2 Based on the Starlink satellite communication payload forwarding system in Example 1, this embodiment discloses a Starlink satellite communication payload forwarding method, which includes the following steps: Step 201, design the Starlink satellite communication payload forwarding system, including a service signal forwarding module and an on-link measurement and control forwarding module; wherein the service signal forwarding module includes a parallel forward service signal forwarding unit and a reverse service signal forwarding unit; the on-link measurement and control forwarding module includes a parallel uplink on-link measurement and control forwarding unit and a downlink on-link measurement and control forwarding unit.

[0042] Step 202: When it is necessary to forward the forward service signal, each transceiver antenna sends the received QV-band multi-beam service signal to the forward service signal forwarding unit for combining and Ku-band frequency conversion processing to obtain a Ku-band multi-beam service signal; multi-beam separation is performed on the Ku-band multi-beam service signal, and the separated Ku-band multi-beam service signal is forwarded to the ground user terminal through the Ku-band transmitting phased array.

[0043] Step 203, when it is necessary to forward the uplink tracking and control signal, each transceiver antenna sends the received QV-band single-beam tracking and control signal to the uplink tracking and control forwarding unit for combining and Ku-band frequency conversion processing to obtain a Ku-band single-beam tracking and control signal; the Ku-band single-beam tracking and control signal is frequency-converted again to obtain an S-band single-beam tracking and control signal; and the S-band single-beam tracking and control signal is sent to the satellite service system.

[0044] Step 204, when reverse service signal forwarding is required, the Ku-band receiving phased array sends the received Ku-band multi-beam service signal to the reverse service signal forwarding unit for QV-band frequency conversion processing, combining, and power division amplification processing, and then sends it to the corresponding ground signal gateway through each transceiver antenna.

[0045] Step 205, when it is necessary to forward the downlink tracking and control signal, the satellite service system sends the S-band single-beam tracking and control signal to the downlink tracking and control forwarding unit for QV-band frequency conversion, combining, and power division amplification, and then sends it to the corresponding ground signal gateway through each transceiver antenna.

[0046] In one of the embodiments, the service signal forwarding module and the associated measurement and control forwarding module transparently forward signals by combining frequency division multiple access, code division multiple access, and time division multiple access.

[0047] It can be understood that the frequency division multiple access method can make full use of the frequency bands applied for by Starlink satellites, so that the forwarding system can support multi-band, large-bandwidth communication services. For example, when the forward service signal forwarding unit is working, the forward service signal forwarding unit and the uplink on-link measurement and control forwarding unit can forward at the same time through the frequency division multiple access method, and the uplink on-link measurement and control forwarding unit can also perform real-time switching of forwarding at different frequencies. When the reverse service signal forwarding unit is working, the reverse service signal forwarding unit and the downlink on-link measurement and control forwarding unit can forward at the same time through the frequency division multiple access method, and the downlink on-link measurement and control forwarding unit can also perform real-time switching of forwarding at different frequencies.

[0048] The code division multiple access method enables the repeater to support the forwarding of signals with multiple modulation methods on the same frequency band, and supports multiple high-order modulation methods, such as 8PSK, 16QAM, 16APSK, 32APSK, etc., making the forwarding system more applicable and more versatile. For example, in the forward service signal forwarding unit, the forward service signal forwarding unit performs the simultaneous forwarding of multi-beam and multi-modulation signals through the code division multiple access method, and the uplink on-link measurement and control forwarding unit has the same frequency signal anti-interference capability through the code division multiple access method. When the reverse service signal forwarding unit is working, the reverse service signal forwarding unit performs the simultaneous forwarding of multi-beam and multi-modulation signals through the code division multiple access method, and the downlink on-link measurement and control forwarding unit has the same frequency signal anti-interference capability through the code division multiple access method.

[0049] The time division multiple access method enables the repeater to perform real-time switching operations on multi-beam service signals and single-beam measurement and control signals, so that the forwarding system can flexibly control the use time of various signals and flexibly adapt to various complex communication needs. For example, in the forward service signal forwarding unit, the forward service signal forwarding unit switches the single-beam and multi-beam signal forwarding modes through the time division multiple access method, and the forward service signal forwarding unit and the uplink measurement and control forwarding unit can be switched on and off in real time. When the reverse service signal forwarding unit is working, the reverse service signal forwarding unit switches the single-beam and multi-beam signal forwarding modes through the time division multiple access method, and the reverse service signal forwarding unit and the downlink measurement and control forwarding unit can be switched on and off in real time.

[0050] It can be seen that through the combination of frequency division multiple access, time division multiple access and code division multiple access, the forward business signal forwarding unit and the reverse business signal forwarding unit can have the working mode of switching the business signal single beam, multiple beams and multiple modulation modes at will; it can also make the uplink on-link measurement and control forwarding unit and the downlink on-link measurement and control forwarding unit have the working modes of opening, closing, switching of different frequencies and anti-interference capabilities.

[0051] This multiple access method can effectively utilize spectrum resources, reduce signal interference, and increase the service capacity of communication loads. It can also be flexibly combined according to signal type and transmission requirements to adapt to different communication scenarios and requirements, and has a wider range of application scenarios. In addition, the combination of multiple access technologies can also help achieve a balance between different signals, improve the integration and stability of the system, and optimize the overall performance of the network and user experience.

[0052] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A Starlink satellite communication payload forwarding system, characterized in that: The system comprises: a service signal forwarding module and a path-associated measurement and control forwarding module; The service signal forwarding module includes a parallel forward service signal forwarding unit and a reverse service signal forwarding unit; the on-link measurement and control forwarding module includes a parallel uplink on-link measurement and control forwarding unit and a downlink on-link measurement and control forwarding unit; wherein the reverse service signal forwarding unit and the downlink on-link measurement and control forwarding unit are combined through a multi-port network and use fixed-place components together; the forward service signal forwarding unit and the uplink on-link measurement and control forwarding unit are combined through a combiner and use signal processing components together.

2. The Starlink satellite communication payload forwarding system according to claim 1, characterized in that: The forward service signal forwarding unit also includes a forward filter; Each transceiver antenna sends the received QV band multi-beam service signal to the combiner; The combiner combines the QV band multi-beam service signals and sends them to the signal processing component for processing to obtain a Ku band multi-beam service signal; The Ku-band multi-beam service signal is forwarded to the ground user terminal after multi-beam separation by the forward filter.

3. The Starlink satellite communication payload forwarding system according to claim 1, characterized in that: The uplink on-link measurement and control forwarding unit also includes an uplink frequency converter; Each transceiver antenna sends the received QV band single beam path tracking and control signal to the combiner; The combiner combines the QV band single beam tracking control signals and sends them to the signal processing component for processing to obtain a Ku band single beam tracking control signal. The Ku-band single-beam track-and-track tracking and control signal is processed by the uplink frequency converter to obtain an S-band single-beam track-and-track tracking and control signal, and then the S-band single-beam track-and-track tracking and control signal is sent to the satellite service system.

4. The Starlink satellite communication payload forwarding system according to claim 1, characterized in that: The reverse service signal forwarding unit also includes a reverse processing component; The reverse processing component receives the Ku-band multi-beam service signal and processes the Ku-band multi-beam service signal to obtain a QV-band multi-beam service signal; The reverse processing component transmits the QV band multi-beam service signal to the multi-port network, and performs a combined processing with the signal transmitted by the downlink associated measurement and control forwarding unit to obtain the combined QV band multi-beam service signal; The combined QV band multi-beam service signal is power-divided to the fixed amplifier component for amplification and processing, and then sent to the corresponding ground gateway through each transceiver antenna.

5. The Starlink satellite communication payload forwarding system according to claim 1, characterized in that: The downlink associated measurement and control forwarding unit also includes a downlink frequency converter; The downlink frequency converter receives an S-band single-beam path-following measurement and control signal, and processes the S-band single-beam path-following measurement and control signal to obtain a QV-band single-beam path-following measurement and control signal; The QV band single beam path-following measurement and control signal is transmitted to the multi-port network, and after being combined with the signal transmitted by the reverse service signal forwarding unit, a combined QV band single beam path-following measurement and control signal is obtained; The combined QV band single beam tracking control signal is powered and distributed to the fixed amplifier component for amplification and processing, and then sent to the corresponding ground signal gateway through each transceiver antenna.

6. The Starlink satellite communication payload forwarding system according to any one of claims 1 to 5, characterized in that: The signal processing component includes a frequency converter and a power divider; After the frequency converter performs frequency conversion processing on the received signal, the frequency converted signal is transmitted to the power divider for power division processing.

7. The Starlink satellite communication payload forwarding system according to claim 4, characterized in that: The reverse processing component includes a reverse filter and a reverse frequency converter; After the reverse filter performs filtering processing on the received signal, the filtered signal is transmitted to the reverse frequency converter for frequency conversion processing.

8. The Starlink satellite communication payload forwarding system according to any one of claims 1 to 5, characterized in that: A low noise amplifier component is also arranged before the combiner; The low noise amplifier component performs noise filtering on the signals received by each transceiver antenna and then transmits the signals to the combiner for combining.

9. A Starlink satellite communication payload forwarding method, characterized in that: The method comprises: Step 201, designing a Starlink satellite communication payload forwarding system, including a service signal forwarding module and a track-link measurement and control forwarding module; wherein the service signal forwarding module includes a parallel forward service signal forwarding unit and a reverse service signal forwarding unit; the track-link measurement and control forwarding module includes a parallel uplink track-link measurement and control forwarding unit and a downlink track-link measurement and control forwarding unit; Step 202: When it is necessary to forward the forward service signal, each transceiver antenna sends the received QV band multi-beam service signal to the forward service signal forwarding unit for combining and Ku band frequency conversion processing to obtain a Ku band multi-beam service signal; multi-beam separation is performed on the Ku band multi-beam service signal, and the separated Ku band multi-beam service signal is forwarded to the ground user terminal; Step 203, when it is necessary to forward the uplink track tracking and control signal, each transceiver antenna sends the received QV band single beam track tracking and control signal to the uplink track tracking and control forwarding unit for combining and Ku band frequency conversion processing to obtain a Ku band single beam track tracking and control signal; the Ku band single beam track tracking and control signal is frequency converted again to obtain an S band single beam track tracking and control signal; and the S band single beam track tracking and control signal is sent to the satellite service system; Step 204: When reverse service signal forwarding is required, the Ku-band multi-beam service signal is sent to the reverse service signal forwarding unit for QV-band frequency conversion processing, combining, and power division amplification, and then sent to the corresponding ground gateway through each transceiver antenna; Step 205, when it is necessary to forward the downlink path tracking and control signal, the S-band single-beam path tracking and control signal is sent to the downlink path tracking and control forwarding unit for QV-band frequency conversion processing, combining, and power division amplification processing, and then sent to the corresponding ground signal gateway through each transceiver antenna.

10. The Starlink satellite communication payload forwarding method according to claim 9, characterized in that: The service signal forwarding module and the on-link measurement and control forwarding module transparently forward signals by combining frequency division multiple access, code division multiple access and time division multiple access.

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