CN116192240B - Green power control system and method suitable for satellite communication - Google Patents
Green power control system and method suitable for satellite communication Download PDFInfo
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- CN116192240B CN116192240B CN202310207275.1A CN202310207275A CN116192240B CN 116192240 B CN116192240 B CN 116192240B CN 202310207275 A CN202310207275 A CN 202310207275A CN 116192240 B CN116192240 B CN 116192240B
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- 238000004891 communication Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000011664 signaling Effects 0.000 claims description 16
- ZOKXUAHZSKEQSS-UHFFFAOYSA-N tribufos Chemical compound CCCCSP(=O)(SCCCC)SCCCC ZOKXUAHZSKEQSS-UHFFFAOYSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 230000002452 interceptive effect Effects 0.000 abstract description 2
- 230000003321 amplification Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 239000000969 carrier Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a green power control system and method suitable for satellite communication, and belongs to the technical field of satellite communication. The satellite modem, the analog transmitting module, the antenna, the analog receiving module and the satellite modem are connected in sequence in an interactive mode, and the satellite modem, the power control module, the power enabling control module and the antenna are connected in sequence. The beneficial effects of the invention are as follows: compared with the prior art, the green power control system and the method can complete the control of the transmitting power of the system link in real time according to the transmitting state of the terminal station, including but not limited to the switching off and switching on of the power supply of the array IC, realize the low-power consumption communication function of the satellite terminal equipment, reduce the pressure of the terminal equipment on the battery and the heat dissipation system, and ensure the long service life and low heat consumption of the system.
Description
Technical field:
the invention belongs to the technical field of satellite communication, and particularly relates to a green power control system and method suitable for satellite communication.
The background technology is as follows:
a satellite ground station communication system in motion, abbreviated as "communication-in-motion". The communication in motion is composed of a satellite automatic tracking system and a satellite communication system, and a mobile carrier such as a vehicle, a ship, an airplane and the like can track a platform such as a satellite in real time in the motion process through the communication in motion system, and can continuously transmit multimedia information such as voice, data, images and the like, so that the communication in motion can meet the requirements of various military and civil emergency communication and multimedia communication under mobile conditions. The communication-in-motion system well solves the difficulty that various vehicles, ships and other mobile carriers continuously transmit voice, data, high-definition dynamic video images, fax and other multimedia information in real time through the geosynchronous satellite and the low-orbit satellite in motion, is a major breakthrough in the communication field, is an application field with vigorous demand and rapid development in the current satellite communication field, and has very wide development prospects in the two fields of the army and the civilian.
The power control of the current communication-in-motion antenna is in an open loop mode, after the link budget is carried out according to the throughput required by a user, the gain of an amplifier of a corresponding receiving and transmitting analog module is determined, once equipment is started up, a related module is in a fixed gain mode for a long time, the antenna cannot carry out power control on a forward signal in real time, the power cannot be automatically converted according to actual requirements, and the problem of insufficient energy conservation exists.
Under the scene of MEO and LEO satellite application, particularly under the condition that a satellite and a ground terminal have non-working time slots, adjustment and power saving of an array power supply are needed to be conducted, so that green energy saving is achieved, and based on the situation, a system and a method for achieving the green energy saving power control are needed in the market.
Disclosure of Invention
In order to solve the above problems, the present invention aims to provide a green power control system and method suitable for satellite communication, which can detect the working time slot of the reverse transmitting link of an antenna in real time, realize the real-time control of the transmitting power of the system link according to the transmitting schedule time slot table and the transmitting frequency point schedule issued by the master station, realize the green power control, not only save energy, but also ensure the stability of the system operation.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the invention provides a green power control system suitable for satellite communication, which comprises an antenna, a satellite modem, a power control module, a power enabling control module, an analog receiving module and an analog transmitting module, wherein the satellite modem, the analog transmitting module, the antenna, the analog receiving module and the satellite modem are sequentially and interactively connected, and the satellite modem, the power control module, the power enabling control module and the antenna are sequentially connected. In the application, the antenna can realize the receiving and transmitting between the circuit level signal of the satellite signal and the wireless channel, and the signal output by the satellite modem is transmitted to the satellite through the antenna system, and meanwhile, the satellite modem receives the satellite downlink signal.
Further, the satellite Modem is simply referred to as "Modem" and is capable of demodulating a received satellite signal and modulating a baseband transmission signal, and simultaneously implementing network management and service processing.
Further, the power control module adopts an FPGA or a special IC. The power control module can be realized through an FPGA or a special IC, can automatically adjust the power strategy of the transmitter in real time based on a time slot table fed back from the gateway station, and sends the power strategy to the power enabling control module.
Further, the power supply enabling control module provides a power amplification power supply for the transmitting power amplifier or the power amplification group of the antenna unit and is mainly responsible for providing a power supply comprising a power amplification circuit such as GaAs, gaN and the like and an MMIC chip. Meanwhile, the power amplifier has the capability of receiving control signals from the power control module, is used for completing power on and power off control enabling of a power supply, ensures that the power amplifier and the power amplifier array are in an on-off state in real time, and avoids unnecessary opening of signal carriers.
Further, the analog transmitting module comprises a PLL and an up-converter for providing local oscillation, and the satellite modem, the PLL, the up-converter and the antenna are connected in sequence. The L-band signal output by the Modem can be subjected to frequency mixing and frequency conversion to target satellite band signals such as Ku/ka.
Further, the antenna comprises a transmitting antenna module and a receiving antenna module of the array antenna, wherein the transmitting antenna module comprises an active divider, a phase shifter, an attenuator, a power amplifier and an antenna array element, and the active divider, the phase shifter, the attenuator, the power amplifier and the antenna array element of the transmitting antenna module are sequentially connected. The phase shifter, the attenuator and the power amplifier can be independent devices or a combined multifunctional radio frequency chip and are responsible for carrying out amplitude and phase control on radio frequency signals which are simulated to be transmitted and enter the antenna, and then radiating the signals to corresponding directions in space. The transmitting antenna module also receives a control signal of the power enable control module.
Further, the receiving antenna module comprises an active divider, a phase shifter, an attenuator, a low noise amplifier and an antenna array element, and the active divider, the phase shifter, the attenuator, the low noise amplifier and the antenna array element of the receiving antenna module are sequentially connected. The phase shifter, the attenuator and the power amplifier can be independent devices or a combined multifunctional radio frequency chip which is responsible for receiving incoming wave signals which are specifically directed in space, and the incoming wave signals are output to a receiving analog module by amplitude and phase control combination.
Further, the analog receiving module comprises a PLL, a down converter and a low noise amplifier, wherein the PLL and the down converter are used for providing local oscillation, and the antenna, the low noise amplifier, the down converter, the PLL and the satellite modem are connected in sequence. The analog receiving module is used for converting the received satellite signals into L wave bands and amplifying the signals.
The invention also provides a green power control method suitable for satellite communication, which comprises the following steps:
s1, a satellite communication terminal and a master station complete a chain establishment application;
s2, a satellite modem of the satellite communication terminal receives a time slot table distributed by a main station and extracts TBTP signaling;
s3, a satellite modem of the satellite communication terminal performs signal conversion processing according to signaling of a TBTP table to generate control enabling or switching-off signaling;
s4, the satellite modem sends enabling or shutting down signaling to the power control module to control the power supply enabling of the antenna unit or control the PA enabling of the antenna array multifunctional chip;
and S5, the antenna array surface responds to the enabling or switching-off instruction in real time, so that the power supply and the power generation dynamic switch of the array surface are realized, the green power control is realized, and the effects of energy conservation and consumption reduction are achieved.
The beneficial effects of the invention are as follows: compared with the prior art, the green power control system and the method can complete the control of the transmitting power of the system link in real time according to the transmitting state of the terminal station, including but not limited to the switching off and switching on of the power supply of the array IC, realize the low-power consumption communication function of the satellite terminal equipment, reduce the pressure of the terminal equipment on the battery and the heat dissipation system, and ensure the long service life and low heat consumption of the system.
Drawings
Fig. 1 is a system architecture block diagram of the present embodiment.
Fig. 2 shows a signaling list of RCST in the present embodiment.
FIG. 3 RCST of this embodiment executes a flow chart according to the NIT table.
Fig. 4 shows the signaling interaction procedure of RCST in the present embodiment.
Fig. 5 is a frame-slot relationship diagram of the RCST of the present embodiment.
Fig. 6 is a schematic diagram of fine alignment of baseband traffic slots of RCST of the present embodiment.
Fig. 7 is a block diagram of an energy-saving control architecture of a satellite communication terminal according to the present embodiment.
Fig. 8 is a block diagram of a phased array transmit antenna module architecture of the present implementation.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-8, the invention is implemented as follows:
referring to fig. 1, the invention provides a green power control system suitable for satellite communication, which comprises an antenna, a satellite modem, a power control module, a power enabling control module, an analog receiving module and an analog transmitting module, wherein the satellite modem, the analog transmitting module, the antenna, the analog receiving module and the satellite modem are sequentially connected in an interactive way, and the satellite modem, the power control module, the power enabling control module and the antenna are sequentially connected. In the application, the antenna can realize the receiving and transmitting between the circuit level signal of the satellite signal and the wireless channel, and the signal output by the satellite modem is transmitted to the satellite through the antenna system, and meanwhile, the satellite modem receives the satellite downlink signal.
Further, the satellite Modem is simply called "Modem", which can demodulate the received satellite signal and modulate the baseband transmission signal, and realize network management and service processing.
Further, the power control module adopts an FPGA or a special IC. The power control module can be realized through an FPGA or a special IC, can automatically adjust the power strategy of the transmitter in real time based on a time slot table fed back from the gateway station, and sends the power strategy to the power enabling control module.
Further, the power supply enabling control module provides a power amplification power supply for the transmitting power amplifier or the power amplification group of the antenna unit, and is mainly responsible for providing a power supply comprising a power amplification circuit such as GaAs, gaN and the like and an MMIC chip. Meanwhile, the power amplifier has the capability of receiving control signals from the power control module, is used for completing power on and power off control enabling of a power supply, ensures that the power amplifier and the power amplifier array are in an on-off state in real time, and avoids unnecessary opening of signal carriers.
Further, the analog transmitting module comprises a PLL and an up-converter for providing local oscillation, and the satellite modem, the PLL, the up-converter and the antenna are connected in sequence. The L-band signal output by the Modem can be subjected to frequency mixing and frequency conversion to target satellite band signals such as Ku/ka.
Further, the antenna comprises a transmitting antenna module and a receiving antenna module of the array antenna, wherein the transmitting antenna module comprises an active divider, a phase shifter, an attenuator, a power amplifier and an antenna array element, and the active divider, the phase shifter, the attenuator, the power amplifier and the antenna array element of the transmitting antenna module are sequentially connected. The phase shifter, the attenuator and the power amplifier can be independent devices or a combined multifunctional radio frequency chip and are responsible for carrying out amplitude and phase control on radio frequency signals which are simulated to be transmitted and enter the antenna, and then radiating the signals to corresponding directions in space. The transmitting antenna module also receives a control signal of the power enable control module.
Further, the receiving antenna module comprises a power divider, a phase shifter, an attenuator, a low noise amplifier and an antenna array element, and the power divider, the phase shifter, the attenuator, the low noise amplifier and the antenna array element of the receiving antenna module are sequentially connected. The phase shifter, the attenuator and the power amplifier can be independent devices or a combined multifunctional radio frequency chip which is responsible for receiving incoming wave signals which are specifically directed in space, and the incoming wave signals are output to a receiving analog module by amplitude and phase control combination.
Further, the analog receiving module comprises a PLL, a down converter and a low noise amplifier, wherein the PLL and the down converter are used for providing local oscillation, and the antenna, the low noise amplifier, the down converter, the PLL and the satellite modem are connected in sequence. The analog receiving module is used for converting the received satellite signals into L wave bands and amplifying the signals.
The invention also provides a green power control method suitable for satellite communication, which comprises the following steps:
s1, a satellite communication terminal and a master station complete a chain establishment application;
s2, a satellite modem of the satellite communication terminal receives a time slot table distributed by a main station and extracts TBTP signaling;
s3, a satellite modem of the satellite communication terminal performs signal conversion processing according to signaling of a TBTP table to generate control enabling or switching-off signaling;
s4, the satellite modem sends enabling or shutting down signaling to the power control module to control the power supply enabling of the antenna unit or control the PA enabling of the antenna array multifunctional chip;
and S5, the antenna array surface responds to the enabling or switching-off instruction in real time, so that the power supply and the power generation dynamic switch of the array surface are realized, the green power control is realized, and the effects of energy conservation and consumption reduction are achieved.
Further, referring to fig. 2, in the present application, an RCST terminal device in a satellite communication system uses an MF-TDMA mode for uplink backhaul signals, each carrier corresponds to a superframe, each superframe includes a plurality of frames, and each frame is further formed by a plurality of timeslots. Each user must transmit his own user data in the time slot allocated to him. SCT, FCT, TCT shows the frequency, bandwidth, start time, duration of the superframe, frame, time slot, modulation and coding scheme of the time slot, preamble, etc.
Further, in the present application, according to the resource request of the RCST user terminal station, the NCC master station network control center determines a dynamic allocation scheme of the time slot of each superframe, that is, establishes a correspondence between the segmented time slots and the users logged on the network, and then sends the segmented time slots to the terminal users through TBTP. Our goal is to extract the TBTP from the broadcast channel down to the end station. The modem side pseudocode is as follows: after the RCST has acquired the NIT table on start_up sequence, it performs the following flow chart as shown in fig. 3-4, when the RCST has acquired all the signaling information that it needs to establish the RCS channel.
Further, in the application, the Master station Master uses the reference burst to send a frame plan to inform each end station terminal of the whole network of the burst slot plan, and meanwhile, the end station identity verification, NCC timestamp marking (same as the PCR field function of DVB-RCS), and each end station fine-tuning air interface parameters (end station power adjustment notification, frequency offset adjustment, etc.) can be completed. The end station uses the langingburst for identity authentication registration and end-to-end delay measurement (end station-to-master station air interface delay is based on PCRinterval dotting). And the authenticated end station after successful registration and time synchronization is completed, the authenticated end station uses a request burst (RequestBurst) to transmit a resource request report and report a power feedback message about the end station in the master station ReferenceBurst by RCS (ReturnChanneloverSatellite).
Further, as shown in fig. 5, the allocation of the time slots is determined by the master station and broadcast to the respective end stations via a Frame Plan, which is physically carried on the reference burst for burst transmission. The duration ('baseslot') of each slot in a TDMA frame is the same. The CPU sends control words to the modem through the bus, when the parallel data is output in series, the parameter control words are enabled when the first bit of the serial data is to be output, and when the last bit of the serial data is output completely, the control words are disabled. The controller sends a parameter control word signal to the modulator, requiring three sets of signals to cooperate to complete the parameter control word (PacketButs), the parameter control word clock (PacketClock), and the parameter control word enable (PacketEnable). The timing of these three sets of signals is shown in fig. 6 below.
Further, when implementing the system, the system needs to fully complete the fine time slot control of the baseband code stream, the power control module and the power enable control, and needs to be implemented by means of high-precision time stamps. For the antenna, due to the huge power consumption of the phased array, the corresponding energy-saving control is planned from the power source angle of the transmitting array surface, and the energy-saving control is used for controlling the enabling and the switching-off of the power source of the array chip by extracting the signaling of TBTP in the modulator and performing relevant signal conversion processing, and the circuit block diagram is shown in fig. 7.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. The power control method of the green power control system suitable for satellite communication is characterized in that the green power control system comprises an antenna, a satellite modem, a power control module, a power enabling control module, an analog receiving module and an analog transmitting module, wherein the satellite modem, the analog transmitting module, the antenna, the analog receiving module and the satellite modem are sequentially and interactively connected, and the satellite modem, the power control module, the power enabling control module and the antenna are sequentially connected;
the method comprises the following steps:
s1, a satellite communication terminal and a master station complete a chain establishment application;
s2, a satellite modem of the satellite communication terminal receives a time slot table distributed by a main station and extracts TBTP signaling;
s3, a satellite modem of the satellite communication terminal performs signal conversion processing according to signaling of a TBTP table to generate control enabling or switching-off signaling;
s4, the satellite modem sends enabling or shutting down signaling to the power control module to control the power supply enabling of the antenna unit or control the PA enabling of the antenna array multifunctional chip;
and S5, the antenna array surface responds to the enabling or switching-off instruction in real time to realize the power supply and power generation dynamic switch of the array surface.
2. The method of claim 1, wherein the power control module is an FPGA or a dedicated IC.
3. The method of claim 1, wherein the analog transmission module comprises a PLL and an up-converter for providing local oscillation, and the satellite modem, PLL, up-converter, and antenna are connected in sequence.
4. The method of claim 1, wherein the antenna comprises a transmitting antenna module and a receiving antenna module with array antennas, the transmitting antenna module and the receiving antenna module each comprise an active power divider, a phase shifter, an attenuator, and an antenna array element, the transmitting antenna module further comprises a power amplifier, the receiving antenna module further comprises a low noise amplifier, the power divider, the phase shifter, the attenuator, the power amplifier, and the antenna array element of the transmitting antenna module are sequentially connected, and the power divider, the phase shifter, the attenuator, the low noise amplifier, and the antenna array element of the receiving antenna module are sequentially connected.
5. The method of claim 1, wherein the analog receiving module comprises a PLL and a down converter for providing local oscillation and a low noise amplifier, and the antenna, the low noise amplifier, the down converter, the PLL, and the satellite modem are sequentially connected.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208028891U (en) * | 2018-03-20 | 2018-10-30 | 星展测控科技股份有限公司 | A kind of satellite communication upstream power spectrum density control system |
| CN113382462A (en) * | 2021-05-20 | 2021-09-10 | 深圳市星楷通讯设备有限公司 | Multi-closed-loop power control system and control method suitable for satellite communication |
| US11211695B1 (en) * | 2018-09-12 | 2021-12-28 | Rockwell Collins, Inc. | Dual beam transmit system for analog beamforming airborne satellite communications |
| CN114679213A (en) * | 2021-10-30 | 2022-06-28 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Ka frequency band dual-mode airborne broadband satellite communication system |
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- 2023-03-07 CN CN202310207275.1A patent/CN116192240B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208028891U (en) * | 2018-03-20 | 2018-10-30 | 星展测控科技股份有限公司 | A kind of satellite communication upstream power spectrum density control system |
| US11211695B1 (en) * | 2018-09-12 | 2021-12-28 | Rockwell Collins, Inc. | Dual beam transmit system for analog beamforming airborne satellite communications |
| CN113382462A (en) * | 2021-05-20 | 2021-09-10 | 深圳市星楷通讯设备有限公司 | Multi-closed-loop power control system and control method suitable for satellite communication |
| CN114679213A (en) * | 2021-10-30 | 2022-06-28 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Ka frequency band dual-mode airborne broadband satellite communication system |
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