WO2021244351A1 - Dispositif de traitement de signaux et procédé de traitement de signaux - Google Patents

Dispositif de traitement de signaux et procédé de traitement de signaux Download PDF

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Publication number
WO2021244351A1
WO2021244351A1 PCT/CN2021/095748 CN2021095748W WO2021244351A1 WO 2021244351 A1 WO2021244351 A1 WO 2021244351A1 CN 2021095748 W CN2021095748 W CN 2021095748W WO 2021244351 A1 WO2021244351 A1 WO 2021244351A1
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WIPO (PCT)
Prior art keywords
signal
target
coprocessor
transmission
control module
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PCT/CN2021/095748
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English (en)
Chinese (zh)
Inventor
施学良
乔云飞
王斌
张明
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华为技术有限公司
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Publication of WO2021244351A1 publication Critical patent/WO2021244351A1/fr

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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
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
    • H04B7/18541—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for handover of resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/10—Polarisation diversity; Directional diversity
    • 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

Definitions

  • This application relates to the field of satellite communications, and more specifically, to a signal processing device and a signal processing method.
  • the user terminal can access the mobile satellite communication network through the ground terminal for mobile communication.
  • the antenna system of the terminal device needs to have the ability to quickly detect the polarization type of the constantly changing satellite beam.
  • one of the antenna systems can only work in one polarization mode at any time, so there will be a short communication interruption during the adjacent beam switching phase; while the other Although this antenna system can work in two polarization modes at the same time, because the antenna system has two radio frequency channels, the system overhead and power consumption are relatively high.
  • the present application provides a signal processing device that can work in two polarization modes at the same time and has a simpler hardware structure.
  • a signal processing device which includes at least one radiation unit, at least one first control module, a coprocessor, and a radio frequency channel, and each radiation unit in the at least one radiation unit corresponds to a first control module ,
  • Each first control module in the at least one first control module corresponds to one or more radiation units, the first control module includes at least two transmission channels, and the at least two transmission channels communicate with signals of different polarization types One-to-one correspondence;
  • the radiation unit is used to receive at least two signals;
  • the first control module is used to detect the received power of the at least two signals from the radiation unit;
  • the coprocessor is used to receive the at least two signals according to Power, determine the target reception signal from the at least two signals;
  • the coprocessor is also used to instruct the first control module to close the transmission channels other than the target transmission channel among the at least two transmission channels, and the target transmission channel is connected to the The transmission channel corresponding to the target reception signal;
  • the first control module is further configured to send the target reception signal to the baseband processor
  • the first control module and the coprocessor can cooperate to determine the target received signal according to the received power of at least two signals received by the signal processing device, and the coprocessor can instruct the first control module to turn off the target transmission The transmission channel outside the channel, thus realizing the polarization filtering of the received signal.
  • the baseband processor since the baseband processor is not required for signal processing, the burden on the baseband processor is reduced.
  • the signal processing device provided by the embodiment of the present application can receive signals of two different polarization types, and since the signal does not need to be transmitted to the baseband processor for processing, only one set of radio frequency channels is required to transmit the target received signal, that is, Yes, which can reduce the overhead and power consumption of the system. And because there is no need to transmit signals other than the target received signal to the baseband processor, when there is only one set of radio frequency channels, there is no need to cut off the transmission channel used to transmit the target received signal during the switching process.
  • the at least two signals include: a left hand circular polarization (LHCP) signal and a right hand circular polarization (RHCP) signal.
  • LHCP left hand circular polarization
  • RHCP right hand circular polarization
  • the first control module includes at least two first detection modules, at least two first switches and a combiner, the at least two first detection modules and the At least two signals are in one-to-one correspondence, and the at least two first switches are in one-to-one correspondence with the at least two transmission channels; each of the at least two first detection modules is used to detect its corresponding channel The received power of the signal; the combiner is used to combine the at least two transmission channels into one, and the coprocessor is used to instruct the first control module to close transmission channels other than the target transmission channel in the at least two transmission channels , Specifically used to send a first control signal to the at least two first switches, and the first control signal is used to indicate that a switch other than the target switch in the at least two first switches is in an off state, and the target switch is The switch corresponding to the target transmission channel.
  • the first control module includes at least two first detection modules and a second switch, and the at least two first detection modules are one-to-one with the at least two signals.
  • each of the at least two first detection modules is used to detect the received power of a signal corresponding to it;
  • the second switch is used to switch the at least two transmission channels;
  • the coprocessor is in When the first control module is used to instruct the first control module to close the transmission channels other than the target transmission channel in the at least two transmission channels, it is specifically used to send a first control signal to the second switch, and the first control signal is used to instruct the second switch. Switch to the target transmission channel.
  • the coprocessor when used to determine the target received signal according to the received power of the at least two signals, it is specifically configured to receive power from the at least two signals. The largest signal is determined as the target received signal.
  • the coprocessor is further configured to send the baseband processor to the baseband processor when the received power ratio of the interference signal to the target received signal is greater than a first preset threshold.
  • Send a beam switching request message the interference signal is a signal different from the target received signal; the coprocessor is also used to receive a beam switching response message from the baseband processor; the coprocessor is also used to switch according to the beam Perform beam switching in response to the message.
  • the first preset threshold may be set by a satellite system.
  • the coprocessor when used to perform beam switching according to the beam switching response message, it is specifically used to instruct the first control module to close the at least two transmission channels In the transmission channel other than the interference channel, the interference channel is the transmission channel corresponding to the interference signal.
  • the coprocessor is also used to calculate the direction of arrival (DOA) of the target received signal; the coprocessor is also used to beamforming The network sends the DOA of the target received signal.
  • DOA direction of arrival
  • the coprocessor is also used to calculate the DOA of the interfering signal; the coprocessor is used when the received power ratio of the interfering signal to the target received signal is greater than In the case of the first preset threshold, when the beam switching request message is sent to the baseband processor, it is specifically used when the received power ratio is greater than the first preset threshold, and the DOA of the interference signal is greater than the second preset threshold. In this case, the beam switching request message is sent to the baseband processor; the coprocessor is also used to send the DOA of the interference signal to the beamforming network.
  • the second preset threshold may be set by the satellite system.
  • the second preset threshold may be 45°.
  • the coprocessor can calculate the DOA of the target received signal according to the amplitude information and/or phase information of the target received signal received by the multiple radiation units, and the coordinate The processor may calculate the DOA of the interference signal according to the magnitude information and/or phase information of the interference signal received by the multiple radiation units.
  • the coprocessor is further configured to send first information to the baseband processor, where the first information is used to indicate the parameters of the signal received by the target, and the target receives
  • the parameters of the signal include: the polarization type of the target received signal and/or the DOA of the target received signal.
  • the polarization type of the target received signal may be RHCP or LHCP.
  • the signal processing device further includes at least one second control module, and each radiation unit in the at least one radiation unit corresponds to a second control module.
  • Each second control module in a second control module corresponds to one or more radiation units, and the second control module includes at least two emission channels, and the at least two emission channels are associated with emission signals of different polarization types.
  • the coprocessor is also used to determine the polarization type of the target transmission signal; the coprocessor is also used to instruct the second control module to close the at least two transmission channels except for the target transmission channel,
  • the target transmission channel is a transmission channel corresponding to the target transmission signal.
  • the second control module can be instructed by the coprocessor to select the target transmission channel, so that the target transmission signal always has only one transmission channel to choose from, so the 3dB transmission power loss can be reduced, so as to ensure the maximum Transmit energy.
  • the polarization type of the target transmission signal may be RHCP or LHCP.
  • the coprocessor when used to determine the polarization type of the target transmission signal, it is specifically used to: receive the second information from the baseband processor, and the first The second information is used to indicate the polarization type of the target transmission signal; the polarization type of the target transmission signal is determined according to the second information.
  • the coprocessor when used to determine the polarization type of the target transmit signal, it is specifically used to determine the polarization type of the target transmit signal according to the target received signal ;
  • the coprocessor is also used to send third information to the baseband processor, the third information is used to indicate the polarization type of the target transmitted signal.
  • the second control module includes a third switch; the third switch is used to switch the at least two transmission channels; the coprocessor is used to instruct the second
  • the second control module is specifically used to send a second control signal to the third switch when the second control module closes the transmission channels other than the target transmission channel in the at least two transmission channels, and the second control signal is used to instruct the third switch to switch to the Target launch channel.
  • the second control module further includes at least two second detection modules, and the at least two second detection modules correspond to transmission signals of different polarization types in a one-to-one correspondence.
  • Each of the at least two second detection modules is used to detect the transmission power of the corresponding transmission signal; each of the at least two second detection modules is also used to The coprocessor sends the transmission power of the transmission signal; the coprocessor is also used to send the transmission power of the transmission signal to the baseband processor.
  • a signal processing method is provided, which is applied to a signal processing device, the signal processing device includes at least two transmission channels, and the at least two transmission channels correspond to signals of different polarization types in a one-to-one manner.
  • the method includes: detecting the received power of at least two signals; determining a target received signal from the at least two signals according to the received power of the at least two signals; closing transmission channels other than the target transmission channel in the at least two transmission channels
  • the target transmission channel is a transmission channel corresponding to the target reception signal; the target reception signal is sent to the baseband processor through the target transmission channel and the radio frequency channel.
  • the signal processing device determines the target received signal according to the received power of at least two signals received, and closes transmission channels other than the target transmission channel, thereby achieving polarization filtering of the received signal.
  • the baseband processor since the baseband processor is not required for signal processing, the burden on the baseband processor is reduced.
  • the at least two signals may include an RHCP signal and an LHCP signal.
  • the determining the target received signal from the at least two signals according to the received power of the at least two signals includes: the received power of the at least two signals The largest signal is determined as the target received signal.
  • the method further includes: calculating the DOA of the target received signal; and sending the DOA of the target received signal to the beamforming network.
  • the method further includes: in the case where the received power ratio of the interference signal to the target received signal is greater than a first preset threshold, sending a beam to the baseband processor A handover request message, where the interference signal is a signal different from the target received signal; receives a beam switching response message from the baseband processor; and performs beam switching according to the beam switching response message.
  • the performing beam switching according to the beam switching response message includes: closing transmission channels other than the interference channel in the at least two transmission channels, and the interference channel is The transmission channel corresponding to the interference signal.
  • the method further includes: calculating the DOA of the interfering signal; where the ratio of the received power of the interfering signal to the target received signal is greater than the first preset threshold
  • sending a beam switching request message to the baseband processor includes: sending to the baseband processor when the received power ratio is greater than the first preset threshold, and the DOA of the interference signal is greater than a second preset threshold The beam switching request message; the DOA of the interference signal is sent to the beamforming network.
  • the method further includes: sending first information to the baseband processor, where the first information is used to indicate the parameters of the target receiving signal, and the target receiving signal parameter
  • the parameters include: the polarization type of the target received signal and/or the DOA of the target received signal.
  • the polarization type of the target received signal may be RHCP or LHCP.
  • the signal processing device further includes at least two transmission channels, and the at least two transmission channels correspond to transmission signals of different polarization types in one-to-one correspondence, and the method further includes : Determine the polarization type of the target transmission signal; close the transmission channels of the at least two transmission channels except the target transmission channel, which is the transmission channel corresponding to the target transmission signal; transmit the target from the baseband processor transmit a signal.
  • the polarization type of the target reflection signal may be RHCP or LHCP.
  • the determining the polarization type of the target transmission signal includes: receiving second information from the baseband processor, the second information being used to indicate the target transmission signal Type of polarization;
  • the polarization type of the target transmitted signal is determined according to the second information.
  • the determining the polarization type of the target transmit signal includes: determining the polarization type of the target transmit signal according to the polarization type of the target received signal; the method also It includes: sending third information to the baseband processor, where the third information is used to indicate the polarization type of the signal transmitted by the target.
  • a signal processing device which includes at least one radiation unit, at least one second control module, a coprocessor, and a radio frequency channel.
  • Each radiation unit in the at least one radiation unit corresponds to a second control module
  • Each second control module in the at least one second control module corresponds to one or more radiation units
  • the second control module includes at least two emission channels, and the at least two emission channels have different polarization types
  • the coprocessor is used to determine the polarization type of the target transmission signal; the coprocessor is also used to instruct the second control module to close the transmission channels of the at least two transmission channels except the target transmission channel ,
  • the target transmitting channel is the transmitting channel corresponding to the target transmitting signal.
  • the second control module can be instructed by the coprocessor to select the target transmission channel, so that the target transmission signal always has only one transmission channel to choose from, so the 3dB transmission power loss can be reduced, so as to ensure the maximum Transmit energy.
  • the polarization type of the target transmission signal may be RHCP or LHCP.
  • the coprocessor when used to determine the polarization type of the target transmission signal, it is specifically used to: receive the second information from the baseband processor, and the first The second information is used to indicate the polarization type of the target transmission signal; the polarization type of the target transmission signal is determined according to the second information.
  • the coprocessor when used to determine the polarization type of the target transmit signal, it is specifically used to determine the polarization type of the target transmit signal according to the target received signal ;
  • the coprocessor is also used to send third information to the baseband processor, the third information is used to indicate the polarization type of the target transmitted signal.
  • the second control module includes a third switch; the third switch is used to switch the at least two transmit channels; the coprocessor is used to instruct the second The second control module is specifically used to send a second control signal to the third switch when the second control module closes the transmission channels other than the target transmission channel in the at least two transmission channels, and the second control signal is used to instruct the third switch to switch to the Target launch channel.
  • the second control module further includes at least two second detection modules, and the at least two second detection modules correspond to the transmitted signals of different polarization types in a one-to-one correspondence.
  • Each of the at least two second detection modules is used to detect the transmission power of the corresponding transmission signal; each of the at least two second detection modules is also used to The coprocessor sends the transmission power of the transmission signal; the coprocessor is also used to send the transmission power of the transmission signal to the baseband processor.
  • a signal processing method which is applied to a signal processing device, the signal processing device includes at least two transmission channels, and the at least two transmission channels correspond to transmission signals of different polarization types on a one-to-one basis, The method includes: determining the polarization type of the target transmission signal; closing the transmission channels other than the target transmission channel in the at least two transmission channels, where the target transmission channel is the transmission channel corresponding to the target transmission signal; and transmitting the signal from the baseband processor The target emits a signal.
  • the polarization type of the target reflection signal may be RHCP or LHCP.
  • the determining the polarization type of the target transmission signal includes: receiving second information from the baseband processor, the second information being used to indicate the target transmission signal Type of polarization;
  • the polarization type of the target transmitted signal is determined according to the second information.
  • the determining the polarization type of the target transmit signal includes: determining the polarization type of the target transmit signal according to the polarization type of the target received signal; the method also It includes: sending third information to the baseband processor, where the third information is used to indicate the polarization type of the signal transmitted by the target.
  • a terminal device including the signal processing apparatus described in each implementation manner of the foregoing first to fourth aspects.
  • a terminal device including a processor, and further including the signal processing device described in each implementation manner of the first to fourth aspects, and the signal processing device is electrically connected to the processor.
  • Figure 1 shows a schematic block diagram of an antenna architecture supporting LHCP and RHCP.
  • FIG. 2 shows a schematic block diagram of another antenna architecture that can support LHCP and RHCP.
  • FIGS 3 to 6 show schematic structural diagrams of signal processing devices provided by embodiments of the present application.
  • FIGS 7 to 9 show schematic structural diagrams of the first control module provided by an embodiment of the present application.
  • Figures 10 to 11 show schematic structural diagrams of a second control module provided by an embodiment of the present application.
  • FIGS 12 to 18 show schematic flowcharts of signal processing methods provided by embodiments of the present application.
  • FIG. 19 shows a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the user terminal can access the mobile satellite communication network through the ground terminal for mobile communication.
  • the terminal device representing the user end may have different manifestations, for example, it may be a handheld terminal device or a vehicle-mounted terminal device.
  • the terminal equipment can realize the setting and acquisition of the satellite communication status by the terminal user by installing the wireless transceiver antenna, and further realize the communication process with the mobile satellite.
  • the terminal antenna used by the terminal equipment is generally a linear polarization antenna or a fixed single circular polarization antenna. When the terminal antenna is a linearly polarized antenna, the terminal antenna will lose 3dB of power when receiving a circularly polarized satellite signal.
  • the terminal antenna When the terminal antenna is a fixed single circular polarization antenna, you only need to set the polarization of the antenna before the terminal antenna works to apply it to a fixed beam satellite communication system; but for a mobile satellite beam, its polarization is moving In this case, the manual adjustment of the polarization of the terminal antenna will no longer be applicable.
  • the terminal antenna must support dual circular polarization, that is, the terminal antenna must be able to receive/transmit left-hand circular polarization (LHCP) signals. It can also receive/transmit right-hand circular polarization (RHCP) signals; secondly, the terminal antenna must be able to support switching between two polarization modes in real time or work in two polarization modes at the same time.
  • LHCP left-hand circular polarization
  • RHCP right-hand circular polarization
  • the satellite mentioned in the embodiments of the present application may also be a satellite base station or a network side device mounted on the satellite.
  • Figure 1 shows an antenna architecture that can support LHCP and RHCP.
  • the baseband switches the operating mode by controlling the RF switch.
  • the baseband can control the radio frequency switch so that the port for transmitting the LHCP signal of the radiating unit and the radio frequency channel are in a connected state.
  • the antenna structure can receive and/or transmit the LHCP signal and cannot sense the RHCP signal.
  • the baseband can control the radio frequency switch so that the radiating unit's port for transmitting RHCP signals and the radio frequency channel are in a connected state. In this case, the antenna structure can receive and/or transmit RHCP signals and cannot sense LHCP signals .
  • the antenna architecture shown in Figure 1 can support two polarization modes, at any one time, the antenna architecture can only work in one polarization mode, that is, when the antenna architecture can receive and/or transmit RHCP signals, Cannot receive and/or transmit LHCP signals; or, when the antenna structure can receive and/or transmit LHCP signals, it cannot receive and/or transmit RHCP signals.
  • the antenna architecture In the adjacent beam switching phase, that is, when the antenna architecture is located under the LHCP beam and the RHCP beam, the antenna architecture can only perceive the existence of one beam signal at any time, so the antenna architecture needs to scan to determine whether to switch. In the process of scanning for interference signals, the communication signal will be disconnected briefly.
  • Figure 2 shows another antenna architecture that can support LHCP and RHCP.
  • the baseband switches the working mode by controlling the on and off of radio frequency switches (RF switch #1 and RF switch #2).
  • the baseband can control the radio frequency switch #1 to turn on, and control the radio frequency switch #2 to turn off, so that the antenna architecture works in the RHCP polarization mode.
  • the baseband can control the radio frequency switch #2 to turn on, and control the radio frequency switch #1 to turn off, so that the antenna architecture works in the LHCP polarization mode.
  • the antenna architecture shown in Figure 2 can simultaneously receive RHCP signals and LHCP signals and perform baseband processing during the initial access and beam switching process
  • the antenna system requires two sets of RF channels (RF channel #1 and RF channel # 2) Therefore, the overhead and power consumption of the system are increased, and the hardware cost is relatively high.
  • baseband processing is required throughout the entire process, which increases the complexity of the system.
  • this application provides a new type of signal processing device (also called an antenna system or an antenna device, the following takes the antenna system as an example), the antenna system has a simpler hardware structure, which can reduce baseband Processing burden, and reduce system transmission signaling, reduce spectrum overhead.
  • the first, second, third, and various numerical numbers are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application. For example, distinguish different signals, distinguish different parameters, and so on.
  • "including” and “having” and any variations thereof are intended to cover non-exclusive inclusions, for example, other steps or units inherent in a process, method, system, product, or device that include a series of steps or units.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS general Mobile communication system
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • NR new radio
  • the antenna system provided by the embodiments of this application can be applied to a terminal device.
  • the terminal device can be a fixed terminal, a handheld terminal, a vehicle-mounted terminal, an onboard terminal, a portable terminal, a wearable device, a computing device, or a satellite communication function.
  • Other processing equipment connected to the wireless modem may also be a mobile station (MS), subscriber unit (subscriber unit), cellular phone (cellular phone), smart phone (smart phone), wireless data card, personal digital assistant (personal digital assistant).
  • MS mobile station
  • subscriber unit subscriber unit
  • cellular phone cellular phone
  • smart phone smart phone
  • wireless data card personal digital assistant (personal digital assistant).
  • PDA personal digital assistant
  • tablet computer wireless modem (modem)
  • handheld device handset
  • laptop computer laptop computer
  • machine type communication machine type communication
  • MTC machine type communication
  • VR virtual reality
  • AR augmented reality
  • industrial control industrial control
  • remote medical remote medical
  • smart grid Wireless terminals in (smart grid) wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, 5G networks, or future communication networks Terminal equipment, etc., are not restricted in this application.
  • FIG. 3 is a schematic block diagram of an antenna system 300 provided by an embodiment of the present application.
  • the antenna system 300 may include a radiation unit, a first control module, a coprocessor, and a radio frequency channel.
  • the architecture shown in Figure 3 also contains other necessary units for implementing communication functions.
  • the radiating unit is used to receive signals from the satellite, and the radiating unit can be used to receive at least two channels of signals, and each of the at least two channels of signals has a polarization characteristic different from other channels of signals.
  • the radiation unit can be a split radiation unit or an integrated radiation unit.
  • the radiation unit may include at least two ports, and the at least two ports correspond to at least two signals in a one-to-one manner. For example, if the two signals are the RHCP signal and the LHCP signal, the first port of the two ports can correspond to the RHCP signal, and the second port can correspond to the LHCP signal. It should be noted that the first port and the second port can work at the same time.
  • the radiating unit shown in Fig. 3 includes two ports, which can be used to receive two signals.
  • the radiating unit in the antenna system may include more ports for receiving more signals.
  • the radiating unit includes three ports, which can be used to receive RHCP signals, LHCP signals, and linear polarization signals, respectively.
  • the radiation unit can transmit the received at least two signals to the first control module through different ports.
  • the radiation unit may transmit the received RHCP signal to the first control module through the first port, and transmit the received LHCP signal to the first control module through the second port.
  • the first control module may be used to detect the received power of at least two signals from the radiation unit, and transmit the obtained received power of the at least two signals to the coprocessor.
  • the first control module includes at least two transmission channels, and the at least two transmission channels have a one-to-one correspondence with signals of different polarization types, that is, each transmission channel of the at least two transmission channels is used to carry signals of different polarization types.
  • the first control module can transmit signals of different polarization types to the baseband processor by controlling the on and off of at least two transmission channels.
  • the coprocessor may be used to determine the target received signal from the at least two signals according to the received power of the at least two signals. Specifically, the coprocessor may determine the signal with the largest received power among the at least two signals as the target received signal.
  • the coprocessor may send a request message to the baseband processor according to the received power of the at least two channels of signals, so as to request the baseband processor to determine the target received signal from the at least two channels of signals. Further, the baseband processor sends instruction information to the coprocessor to indicate the polarization type of the signal received by the target.
  • the coprocessor may send a request message to the baseband processor, and determine the target received signal according to the instruction information from the baseband processor.
  • the coprocessor may send a beam switching request message to the baseband processor when the ratio of the received power of the interference signal to the target received signal is greater than the first preset threshold;
  • the processor receives the beam switching response message from the baseband processor, it determines the interference signal as the new target received signal. Further, after the interference signal is determined as the new target received signal, the coprocessor may also instruct the first control module to close transmission channels other than the interference channel to perform beam switching.
  • the coprocessor after receiving the beam switching response message from the baseband processor, instructs the first control module to open the transmission channel for transmitting the LHCP signal, and at the same time Close the transmission channel used to transmit the RHCP signal.
  • the coprocessor may instruct the first control module to close transmission channels other than the target transmission channel among the at least two transmission channels, and the target transmission channel is the transmission channel corresponding to the target reception signal.
  • the coprocessor determines that the RHCP signal is the target received signal, the coprocessor instructs the first control module to close the transmission channel for transmitting the LHCP signal. It can also be said that the coprocessor instructs the first control module to set the antenna system to work In RHCP polarization mode.
  • the coprocessor can instruct the first control module to close the transmission channel for transmitting the RHCP signal. It can also be said that the coprocessor instructs the first control module to set the antenna The system works in LHCP polarization mode.
  • the coprocessor may further send first information to the baseband processor, the first information is used to indicate the parameters of the target reception signal, and the parameters of the target reception signal may include the polarization type of the target reception signal.
  • the polarization type of the target received signal can be LHCP or RHCP.
  • the first control module and the coprocessor can cooperate to determine the target reception signal, and the coprocessor can instruct the first control module to close the transmission channel other than the target transmission channel, thereby realizing the Polarization filtering of the received signal.
  • the burden on the baseband processor is reduced.
  • the antenna system provided by the embodiment of the present application can receive signals of two different polarization types, and since the signals do not need to be transmitted to the baseband processor for processing, only one set of radio frequency channels is required, thereby Can reduce the overhead and power consumption of the system.
  • the antenna system 300 may further include a second control module.
  • the second control module includes at least two transmission channels, and the at least two transmission channels correspond to transmission signals of different polarization types in a one-to-one correspondence.
  • the coprocessor can be used to determine the polarization type of the target transmitted signal.
  • the polarization type of the target emission signal can be RHCP or LHCP.
  • the coprocessor can determine the polarization type of the target transmitted signal according to the polarization type of the target received signal; further, the coprocessor can also send third information to the baseband processor, and the third information is used to indicate the target transmit signal. Polarization type.
  • the coprocessor may determine the polarization type of the target transmission signal according to the second information from the baseband processor, and the second information is used to indicate the polarization type of the target transmission signal.
  • the coprocessor may instruct the second control module to close transmission channels other than the target transmission channel, and the target transmission channel is the transmission channel corresponding to the target transmission signal. For example, if the coprocessor determines that the polarization type of the target transmission signal is RHCP, the coprocessor instructs the second control module to close the transmission channel for transmitting the LHCP signal, thereby setting the polarization type of the target transmission signal to RHCP. For another example, if the coprocessor determines that the polarization type of the target transmission signal is LHCP, the coprocessor instructs the second control module to close the transmission channel for transmitting the RHCP signal, thereby setting the polarization type of the target transmission signal to LHCP .
  • the second control module can transmit the target emission signal to the radiation unit, and the radiation unit radiates the target emission signal.
  • the radiation unit can radiate the transmitted signals received from different ports in different polarization modes. As shown in FIG. 5, the radiation unit can radiate the transmitted signal received from the first port in the RHCP polarization mode, and can radiate the signal received from the second port in the LHCP polarization mode.
  • the second control module can also be used to detect the power of the transmitted signal, and transmit the obtained power information of the transmitted signal to the coprocessor.
  • first control module and the second control module are connected to the same coprocessor as an example for description, and the embodiment of the present application should not constitute a limitation.
  • the first control module and the second control module can also be connected to different coprocessors respectively.
  • the antenna system 300 may also include multiple radiation units (radiation unit #1 to radiation unit #N shown in FIG. 6), and multiple first control modules/second control modules (in FIG. 6).
  • the architecture shown in Figure 6 also contains other necessary units for implementing communication functions.
  • FIG. 6 only takes a one-to-one correspondence between multiple first control modules and/or second control modules (the control modules are taken as an example below) and multiple radiating units as an example for description, and does not affect the embodiment of the present application. limited.
  • Each control module in the plurality of control modules may correspond to one or more radiation units. For example, for every other radiation unit, a control module is arranged, that is, one control module corresponds to two radiation units. However, it should be noted that each radiation unit corresponds to a control module.
  • the roles of the radiation unit, the control module, and the co-processor can be referred to the description of Figs. 3 to 5 above.
  • the amplitude and phase information of the signal fed back by the module calculates the DOA of the signal, and transmits the received power and DOA of the obtained signal to the beamforming network.
  • the coprocessor calculates the DOA of the target received signal according to the amplitude and phase information of the target received signal fed back by the multiple control modules, and transmits the DOA of the target received signal to the beamforming network.
  • the coprocessor may also calculate the DOA of the interference signal according to the amplitude and phase information of the interference signal fed back by the multiple control modules, and transmit the DOA of the interference signal to the beamforming network.
  • the coprocessor is further configured to send first information to the baseband processor, the first information is used to indicate the parameters of the target received signal, the parameters of the target received signal may include: the polarization type of the target received signal and/or the target The DOA of the received signal.
  • FIG. 7 shows a schematic structural diagram of a first control module 400 provided by an embodiment of the present application.
  • the first control module 400 may include at least two first detection modules (for example, detection module #1 and detection module #2 shown in FIG. 7), and at least two first switches (for example, as shown in FIG. Switch #1 and switch #2) and combiner.
  • the first control module includes at least two transmission channels.
  • each transmission channel may be composed of a first detection module, a first switch, and a combiner connection.
  • the detection module #1, switch #1 and the combiner in Figure 7 can be connected to form a transmission channel for transmitting RHCP signals; detection module #2, switch #2 and the combiner are connected to form a transmission channel for transmitting LHCP signals .
  • each transmission channel is composed of a first switch and a combiner connection.
  • the switch #1 and the combiner are connected to form a transmission channel for transmitting RHCP signals; the switch #2 and the combiner are connected to form a transmission channel for transmitting LHCP signals.
  • the first detection module may be a device capable of realizing an electrical signal power detection function, for example, it may be a power detector.
  • At least two first detection modules correspond to at least two signals in a one-to-one correspondence.
  • the detection module #1 corresponds to the RHCP signal, that is, the detection module #1 can receive the RHCP signal from the radiation unit through the first port of the radiation unit;
  • the detection module #2 corresponds to the LHCP signal, that is, the detection module #2 can receive the LHCP signal from the radiation unit through the second port of the radiation unit.
  • Each of the at least two first detection modules may be used to detect the received power of a corresponding channel of signal, and transmit the obtained received power to the coprocessor.
  • the detection module #1 can be used to detect the received power of the RHCP signal and transmit the received power of the RHCP signal to the coprocessor;
  • the detection module #2 can be used to detect the received power of the LHCP signal, and the obtained LHCP The received power of the signal is transmitted to the coprocessor.
  • the first switch may be a single-pole single-throw switch, or may be a device for controlling the on/off of a circuit, for example, it may be a relay, a solenoid valve, a sensor, and the like.
  • the at least two first switches are in one-to-one correspondence with the at least two transmission channels.
  • the coprocessor can close at least two transmission channels and transmission channels other than the target channel by controlling the on and off of the at least two first switches. For example, the coprocessor sends a first control signal to at least two first switches, and the first control signal is used to indicate that the switches other than the target switch in the at least two first switches are in an off state, so that the at least two transmission channels Transmission channels other than the target channel are in a disconnected state.
  • the coprocessor determines that the target reception signal is the RHCP signal
  • the coprocessor controls switch #1 and switch #2 so that switch #1 is in the on state, and switch #2 is in the off state, thereby turning off the
  • the transmission channel for transmitting the LHCP signal is to set the antenna system to work in the RHCP polarization mode.
  • the coprocessor determines that the target reception signal is the LHCP signal
  • the coprocessor controls switch #1 and switch #2 so that switch #2 is in the on state, and switch #1 is in the off state, thereby turning off the
  • the antenna system is set to work in the LHCP polarization mode.
  • the combiner is used to combine at least two transmission channels into one, and the combiner can also be replaced by a power splitter.
  • FIG. 9 shows a schematic structural diagram of a first control module 500 provided by another embodiment of the present application.
  • the first control module 500 may include at least two first detection modules (for example, detection module #1 and detection module #2 shown in FIG. 9) and a second switch (for example, the switch shown in FIG. 9). #3).
  • the first control module includes at least two transmission channels.
  • each transmission channel may be composed of a first detection module connected to a second switch.
  • detection module #1 and switch #3 in FIG. 9 can be connected to form a transmission channel for transmitting RHCP signals; detection module #2 and switch #3 are connected to form a transmission channel for transmitting LHCP signals.
  • the first detection module and the second switch are connected in series.
  • the first detection module and the second switch may also be connected in parallel.
  • the first detection module may be a device capable of realizing an electrical signal power detection function, for example, it may be a power detector.
  • At least two first detection modules correspond to at least two signals in a one-to-one correspondence.
  • the detection module #1 corresponds to the RHCP signal, that is, the detection module #1 can receive the RHCP signal from the radiation unit through the first port of the radiation unit;
  • the detection module #2 corresponds to the LHCP signal, that is, the detection module #2 can receive the LHCP signal from the radiation unit through the second port of the radiation unit.
  • Each of the at least two first detection modules may be used to detect the received power of a corresponding channel of signal, and transmit the obtained received power to the coprocessor.
  • the detection module #1 can be used to detect the received power of the RHCP signal and transmit the received power of the RHCP signal to the coprocessor;
  • the detection module #2 can be used to detect the received power of the LHCP signal, and the obtained LHCP The received power of the signal is transmitted to the coprocessor.
  • the second switch may be a single-pole double-throw switch, or may be a device capable of implementing a single-pole double-throw function, for example, it may be a relay (for example, a single-pole double-throw solid state relay).
  • the second switch can be used to switch at least two transmission channels.
  • the switch #3 shown in Figure 9 can be a single-pole double-throw switch. If the single-pole throw of the switch #3 is connected to the detection module #1, it means that the switch #3 is switched to the transmission channel for transmitting the RHCP signal; The single-pole throw of #3 is connected to the detection module #2, which means that the switch #3 is switched to the transmission channel for transmitting the LHCP signal.
  • the coprocessor can control the switching of the second switch to close at least two transmission channels and transmission channels other than the target channel.
  • the coprocessor may send a first control signal to the second switch, and the first control signal is used to instruct the second switch to switch to the target transmission channel, so that the transmission channels other than the target transmission channel in the at least two transmission channels are off. Open state.
  • the coprocessor determines that the target reception signal is an RHCP signal
  • the coprocessor controls switch #3 so that switch #3 is switched to the state of connection with detection module #1, thereby turning off the LHCP signal transmission Transmission channel, that is, set the antenna system to work in RHCP polarization mode.
  • the coprocessor determines that the target reception signal is an LHCP signal
  • the coprocessor controls switch #3, so that switch #3 is switched to a connection state with detection module #2, thereby turning off the transmission of RHCP signals
  • the transmission channel that is, set the antenna system to work in the LHCP polarization mode.
  • FIG. 10 shows a schematic structural diagram of a second control module 600 provided by an embodiment of the present application.
  • the second control module 600 may include at least two second detection modules (for example, detection module #3 and detection module #4 shown in FIG. 10), and a third switch (for example, switch # shown in FIG. 10). 4).
  • each transmission channel may be composed of a second detection module connected to a third switch.
  • detection module #3 and switch #4 in FIG. 10 can be connected to form a transmission channel for transmitting RHCP signals; detection module #4 and switch #4 can be connected to form a transmission channel for transmitting LHCP signals.
  • the second detection module and the third switch are connected in series.
  • the second detection module and the third switch may also be connected in parallel.
  • the second detection module may be a device capable of realizing an electrical signal power detection function, for example, it may be a power detector.
  • At least two second detection modules have a one-to-one correspondence with emission signals of different polarization types.
  • the detection module #3 corresponds to the RHCP signal, that is, the detection module #3 transmits a signal to the radiation unit through the first port of the radiation unit, and the radiation unit radiates out in the polarization mode of RHCP;
  • the detection module #4 corresponds to the LHCP signal, that is, the signal emitted by the detection module #4 to the radiating unit through the second port of the radiating unit, and the radiating unit will radiate out in the polarization mode of LHCP.
  • Each of the at least two second detection modules may be used to detect the transmission power of the corresponding transmission signal, and transmit the obtained transmission power value of the transmission signal to the coprocessor.
  • the third switch may be a single-pole double-throw switch, or may be a device capable of implementing a single-pole double-throw function, for example, may be a relay (for example, a single-pole double-throw solid state relay).
  • the third switch can be used to switch at least two transmission channels.
  • switch #4 shown in Figure 10 can be a single-pole double-throw switch. If the single-pole throw of switch #4 is connected to detection module #3, it means that switch #4 is switched to the transmitting channel for transmitting RHCP signals; The single-pole throw of #4 is connected to the detection module #4, which means that the switch #4 is switched to the transmitting channel for transmitting the LHCP signal.
  • the coprocessor can control the switching of the third switch to close the transmission channels other than the target transmission channel, and the target transmission channel is the transmission channel corresponding to the target transmission signal.
  • the second control module may send a second control signal to the third switch, and the second control signal is used to instruct the third switch to switch to the target transmission channel, so that the transmission channels other than the target transmission channel of the at least two transmission channels are in Disconnected state.
  • the coprocessor can control switch #4 so that switch #4 is switched to the state of connection with detection module #3, thereby closing the LHCP for transmission Signal transmission channel, that is, set the polarization type of the target transmission signal to RHCP.
  • the coprocessor can control switch #4 so that switch #4 is switched to the state of connection with detection module #4, thereby closing the transmission
  • the transmission channel of the RHCP signal that is, the polarization type of the target transmission signal is set to LHCP.
  • the coprocessor controls the switching of the second switch to realize the selection of the target transmission channel, so that the target transmission signal always has only one transmission channel to choose from, so the power loss of 3dB can be reduced, and the power loss can be guaranteed. Maximum energy emitted.
  • FIG. 11 shows a schematic structural diagram of a second control module 700 provided by another embodiment of the present application.
  • the second control module 700 may include a third switch (for example, switch #4 shown in FIG. 11).
  • the second control module includes at least two transmission channels.
  • each transmission channel is composed of a third switch.
  • the switch #4 in FIG. 11 is switched to the first port of the radiating unit, then the switch #4 can be used to transmit the RHCP signal; if the switch #4 is switched to the second port of the radiating unit in the connected state , Then switch #4 can be used to transmit the LHCP signal.
  • the third switch may be a single-pole double-throw switch, or may be a device capable of implementing a single-pole double-throw function, for example, may be a relay (for example, a single-pole double-throw solid state relay).
  • the coprocessor can control the switching of the third switch to close the transmission channels other than the target transmission channel, and the target transmission channel is the transmission channel corresponding to the target transmission signal.
  • the second control module may send a second control signal to the third switch, and the second control signal is used to instruct the third switch to switch to the target transmission channel, so that the transmission channels other than the target transmission channel of the at least two transmission channels are in Disconnected state.
  • the coprocessor can control switch #4 so that switch #4 is switched to the state of connection with detection module #3, thereby closing the LHCP for transmission Signal transmission channel, that is, set the polarization type of the target transmission signal to RHCP.
  • the coprocessor can control switch #4 so that switch #4 is switched to the state of connection with detection module #4, thereby closing the transmission
  • the transmission channel of the RHCP signal that is, the polarization type of the target transmission signal is set to LHCP.
  • the selection of the target transmission channel is achieved through the working state of the switch controlled by the coprocessor, so that the target transmission signal always has only one transmission channel to choose from. Therefore, the power loss of 3dB can be reduced and the transmission can be guaranteed. The maximum energy.
  • FIG. 12 shows a schematic flowchart of a signal processing method provided by an embodiment of the present application.
  • the method shown in FIG. 12 can be applied to the antenna systems shown in FIGS. 3 to 6.
  • the method 1000 may include S1010 to S1040, and each step is described in detail below.
  • the antenna system detects the received power of at least two signals.
  • the antenna system may include at least two transmission channels, the at least two transmission channels are in one-to-one correspondence with signals of different polarization types, and each transmission channel is used to carry its corresponding signal. It can also be said that at least two transmission channels correspond to at least two signals on a one-to-one basis.
  • the scenario in which the antenna system receives at least two signals may be, for example, that the terminal equipment including the antenna system is located within the coverage of different polarized beams of the same satellite, or it may be that the terminal equipment including the antenna system is located at different poles of different satellites. Within the coverage of the beam.
  • the radiating unit in the antenna system receives at least two signals from the satellite.
  • the at least two signals may include the LHCP signal and the RHCP signal.
  • the radiation unit may include at least two ports, and the at least two ports correspond to the at least two signals in a one-to-one manner.
  • the radiating unit can receive the LHCP signal and the RHCP signal
  • the radiating unit can include two ports, the first port of the two ports is used for receiving/transmitting the RHCP signal, and the second port is used for receiving/transmitting the LHCP signal.
  • the radiation unit can transmit the received at least two signals to the first control module of the antenna system through at least two ports.
  • the first control module receives the at least two signals from the radiation unit, it detects the received power of the at least two signals, and transmits the obtained received power of the at least two signals to the coprocessor of the antenna system.
  • the antenna system determines a target reception signal from the at least two signals according to the received power of the at least two signals.
  • the coprocessor may determine the target received signal from the at least two signals according to the received power of the at least two signals.
  • the coprocessor may determine the signal with the largest received power among the at least two signals as the target received signal.
  • the coprocessor can determine the RHCP signal as the target received signal; When the received power of the signal is greater than the received power of the RHCP signal, the coprocessor can determine the LHCP signal as the target received signal; when the received power of the RHCP signal and the LHCP signal are equal, the coprocessor can convert the RHCP signal or the LHCP signal The signal is determined to be the target received signal.
  • the coprocessor may send a request message to the baseband processor according to the received power of the at least two channels of signals, so as to request the baseband processor to determine the target received signal from the at least two channels of signals.
  • the coprocessor may send a request message to the baseband processor, and determine the target received signal according to the instruction information from the baseband processor.
  • the coprocessor can transmit the signal to the baseband when the received power ratio of the interference signal to the communication signal is greater than the first preset threshold.
  • the processor sends a beam switching request message; further, when the coprocessor receives a beam switching response message from the baseband processor, the interference signal is determined as a new target received signal.
  • the antenna system closes transmission channels other than the target transmission channel among the at least two transmission channels, and the target transmission channel is a transmission channel corresponding to the target received signal.
  • the coprocessor in the antenna system may instruct the first control module in the antenna system to close the transmission channel except the target transmission channel.
  • signals other than the target reception signal can be determined as interference signals. Further, after the antenna system closes the transmission channel corresponding to the interference signal, polarization filtering of the target received signal can be realized.
  • the method 1000 may further include: the antenna system sends first information to the baseband processor, where the first information is used to indicate whether the target received signal is an LHCP signal or an RHCP signal.
  • the coprocessor in the antenna system may send the first information to the baseband processor.
  • the method 1000 may further include: the antenna system calculates the DOA of the target received signal, and sends the DOA of the target received signal To beamforming network and baseband processor.
  • the coprocessor in the antenna system can calculate the DOA of the target received signal according to the amplitude and phase information of the target received signal fed back by the first control module, and send the DOA of the target received signal to the beamforming network and baseband processing Device.
  • the beamforming network can achieve precise beam pointing according to the DOA of the target received signal, so that after beamforming, the received power of the target received signal can be greatly increased.
  • the antenna system sends the target reception signal to the baseband processor.
  • the first control module in the antenna system may send the target reception signal to the baseband processor through the radio frequency channel.
  • the baseband After the baseband receives the target reception signal, it continues to complete the subsequent process of accessing the satellite.
  • the first control module and the coprocessor in the antenna system may cooperate to process the received signal, and determine the target received signal according to the received power of the received signal.
  • the participation of the baseband processor is not required, so the burden of the baseband processor is reduced.
  • the coprocessor can also close the transmission channels in the antenna system other than the target transmission channel, so as to achieve polarization filtering of the target received signal.
  • the method 1000 may further include: the first control module periodically detects the received power of the interference signal, and transmits the obtained received power of the interference signal To the coprocessor; further, the coprocessor may send a beam switching request message to the baseband processor when the ratio of the received power of the interference signal to the target received signal is greater than the first preset threshold; further, if the coprocessor After receiving the beam switching response message from the baseband processor, the interference signal is determined as the new target received signal; further, the coprocessor performs beam switching.
  • the interference signal is a signal other than the target received signal among the at least two received signals.
  • the method 1000 may also Including: the coprocessor calculates the DOA of the interference signal according to the information fed back by the first control module; further, the coprocessor can determine when the received power ratio of the interference signal to the target received signal is greater than a first preset threshold, and the DOA of the interference signal is greater than In the case of the second preset threshold, send a beam switching request message to the baseband processor; further, if the coprocessor receives a beam switching response message from the baseband processor, determine the interference signal as a new target received signal; further Ground, the coprocessor performs beam switching; and further, the coprocessor sends the DOA of the interference signal to the beamforming network.
  • the first control module and the coprocessor in the antenna system cooperate to process the interference signal and the target received signal, and when the received power of the target received signal is reduced, The beam switching can be realized in time.
  • the baseband processor for processing only one set of radio frequency channels is needed, which can reduce the overhead and power consumption of the system.
  • FIG. 13 shows a schematic flowchart of a signal processing method provided by another embodiment of the present application.
  • the method shown in FIG. 13 can be applied to the antenna systems shown in FIGS. 3 to 6.
  • the method 1100 may include S1110 to S1130, and each step is described in detail below.
  • the antenna system determines the polarization type of the target transmitted signal.
  • the polarization type of the target emission signal can be LHCP or RHCP.
  • the coprocessor in the antenna system can determine the polarization type of the target transmitted signal.
  • the embodiment of the present application does not limit the manner in which the coprocessor determines the polarization type of the target transmission signal.
  • the coprocessor may determine the polarization type of the target transmitted signal according to the target received signal.
  • the coprocessor may determine the polarization type of the target transmitted signal according to the polarization type of the target received signal. For example, if the polarization type of the target received signal received by the antenna system is LHCP, the coprocessor can determine that the polarization type of the target transmitted signal is RHCP.
  • the coprocessor may determine the polarization type of the target transmitted signal according to the characteristics of the constellation where the target received signal is located.
  • the coprocessor may determine the polarization type of the target transmission signal according to the second information from the baseband processor. Wherein, the second information is used to indicate the polarization type of the target transmitted signal.
  • S1120 The antenna system closes the transmission channel except the target transmission channel among the at least two transmission channels.
  • the antenna system may include at least two transmission channels, and the at least two transmission channels have a one-to-one correspondence with transmission signals of different polarization types.
  • the coprocessor in the antenna system may instruct the second control module to close the transmission channel except the target transmission channel.
  • the antenna system transmits a target transmission signal from the baseband processor.
  • the second control module in the antenna system may receive the target transmission signal from the baseband processor. Further, the second control module transmits the target emission signal to the radiation unit, and the radiation unit radiates it out.
  • the two receiving signals received by the radiating unit are RHCP signals and LHCP signals
  • the first port of the radiating unit is used to receive and/or transmit RHCP signals
  • the second port is used to receive and/or transmit LHCP signals as an example.
  • the signal processing method provided in the embodiment of the present application.
  • FIG. 14 shows a schematic flowchart of a signal processing method provided by an embodiment of the present application.
  • the method shown in Fig. 14 can be applied to the antenna systems shown in Figs. 3 to 5.
  • the method 1200 may include S1210 to S1270, and each step is described in detail below.
  • S1210 The radiation unit receives the RHCP signal and the LHCP signal from the satellite. Accordingly, in S1210, the satellite transmits a signal.
  • the RHCP signal and the LHCP signal can be transmitted by the same satellite or by different satellites.
  • the first control module detects the received power of the received signal, and transmits the obtained received power to the coprocessor.
  • the structure of the first control module may be as shown in FIG. 7 to FIG. 9. Then S1220 can be that the detection module #1 detects the received power of the RHCP signal and transmits the received power #1 to the coprocessor; the detection module #2 detects the received power of the LHCP signal and transmits the received power #1 To the coprocessor.
  • S1230 The coprocessor determines the target received signal according to the received received power #1 and received power #2.
  • the coprocessor can determine the target received signal according to the magnitude relationship between the received received power #1 and received power #2. For example, if the coprocessor determines that the received power #1 is greater than the received power #2, it can be determined that the target received signal is an RHCP signal, that is, it is determined that the antenna system will work in the RHCP polarization mode; if the coprocessor determines that the received power# 1 is less than the received power #2, it can be determined that the target received signal is an LHCP signal, that is, it can be determined that the antenna system will work in the LHCP polarization mode; if the coprocessor determines that the received power #1 is equal to the received power #2, it can be determined The target reception signal is the RHCP signal or the LHCP signal.
  • the antenna system is set to work in the RHCP polarization mode, and the method 1200 will continue to execute S1240a to S1260a.
  • S1240a The coprocessor instructs the first control module to close the LHCP channel.
  • the coprocessor control switch #2 is in the off state.
  • the coprocessor controls the switch #3 to switch to a connected state with the detection module #1.
  • the method 1200 may further include: S1250a.
  • the coprocessor sends first information to the baseband, where the first information is used to indicate whether the target received signal is an RHCP signal or an LHCP signal.
  • the first information may be a bool type variable. For example, if the value of the first information is "1", it means that the target received signal is an RHCP signal, and if the value of the first information is "0", it means that the target received signal is It is an LHCP signal; or the value of the first information is "0", it means that the target received signal is an RHCP signal, and if the value of the first information is "1", it means that the target received signal is an LHCP signal.
  • the method 1200 may not perform S1250a.
  • S1260a The baseband processor demodulates the signal received from the RHCP channel.
  • the first control module sends the RHCP signal to the baseband processor through the RHCP channel.
  • the polarization type of the target received signal can be known.
  • the polarization information of the signal can be, for example, a Boolean variable.
  • the value of the demodulated polarization information is "1" it means that the target received signal is an RHCP signal, and if the value of the demodulated polarization information is "1" 0", it means that the target received signal is an LHCP signal; or, if the value of the demodulated polarization information is "0”, it means that the target received signal is an RHCP signal, if the value of the demodulated polarization information is " 1", it means that the target receiving signal is an LHCP signal.
  • the antenna system is set to work in the LHCP polarization mode, and the method 1200 will continue to execute S1240b to S1260b.
  • S1240b The coprocessor controls the first control module to close the RHCP channel.
  • the coprocessor control switch #1 is in the off state.
  • the coprocessor controls the switch #3 to switch to a connection state with the detection module #2.
  • the method 1200 may further include: S1250b.
  • the coprocessor sends first information to the baseband, where the first information is used to indicate whether the target received signal is an RHCP signal or an LHCP signal.
  • the first information may be a bool type variable. For example, if the value of the first information is "1", it means that the target received signal is an RHCP signal, and if the value of the first information is "0", it means that the target received signal is It is an LHCP signal; or, if the value of the first information is "0", it means that the target received signal is an RHCP signal, and if the value of the first information is "1", it means that the target received signal is an LHCP signal.
  • the method 1200 may not perform S1250b.
  • S1260b baseband demodulates the signal received from the LHCP channel.
  • the first control module sends the LHCP signal to the baseband processor through the LHCP channel.
  • the polarization type of the target received signal can be known.
  • the polarization information of the signal can be, for example, a Boolean variable.
  • the value of the demodulated polarization information is "1" it means that the target received signal is an RHCP signal, and if the value of the demodulated polarization information is "1" 0", it means that the target received signal is an LHCP signal; or if the value of the demodulated polarization information is "0”, it means that the target received signal is an RHCP signal, if the value of the demodulated polarization information is "1" ", it means that the target received signal is an LHCP signal.
  • FIG. 15 shows a schematic flowchart of a signal processing method according to another embodiment of the present application.
  • the method shown in FIG. 15 can be applied to the antenna systems shown in FIGS. 7 to 9.
  • the method 1300 may include S1310 to S1380, and each step is described in detail below.
  • S1310 The terminal establishes a connection with the RHCP signal beam of the satellite.
  • the RHCP signal is the target reception signal, that is, the communication signal; on the contrary, the LHCP signal is the interference signal.
  • S1320 The radiation unit receives the RHCP signal and the LHCP signal. Correspondingly, in S1320, the satellite transmits a signal.
  • the RHCP signal and the LHCP signal can be transmitted by the same satellite or by different satellites.
  • the first control module detects the received power of the received signal, and transmits the received power of the obtained signal to the coprocessor.
  • the structure of the first control module may be as shown in FIG. 7 to FIG. 9. Then S1220 can be that the detection module #1 detects the received power of the RHCP signal and transmits the received power #1 to the coprocessor; the detection module #2 detects the received power of the LHCP signal and transmits the received power #1 To the coprocessor.
  • the coprocessor determines whether the received power ratio of the LHCP signal and the RHCP signal is greater than a first preset threshold.
  • the method 1300 executes S1320.
  • the method 1300 executes S1350.
  • S1350 The coprocessor sends a beam switching request message to the baseband processor.
  • the baseband processor determines whether to perform beam switching.
  • the method 1300 executes S1320.
  • the baseband processor determines to perform beam switching
  • the baseband processor sends a beam switching response message to the coprocessor, and the method 1300 executes S1370.
  • the method for the baseband processor to determine whether to perform beam switching can refer to the prior art. For brevity, the embodiments of the present application will not be described in detail.
  • the coprocessor performs beam switching.
  • the coprocessor performs beam switching when receiving the beam switching response message from the baseband processor.
  • the coprocessor instructs the first control module to close the transmission channel for transmitting the RHCP signal, and at the same time to open the transmission channel for transmitting the LHCP signal.
  • the coprocessor controls the switch #1 to be in the off state, and at the same time controls the switch #2 to be in the on state.
  • the coprocessor controls the switch #3 to switch to a connection state with the detection module #2.
  • the embodiment of the present application only uses the terminal device to establish a connection with the RHCP signal beam as an example for description.
  • the terminal device may also establish a connection with the LHCP signal beam first.
  • the LHCP signal is a communication signal
  • the RHCP signal is an interference signal.
  • FIG. 16 is a schematic flowchart of a signal processing method according to another embodiment of the present application.
  • the method shown in FIG. 16 can be applied to the antenna systems shown in FIG. 10 and FIG. 11.
  • the method 1400 may include S1410 to S1480. The steps are described in detail below.
  • the baseband processor determines that the polarization type of the target transmitted signal is RHCP.
  • the manner in which the baseband processor determines the polarization type of the target transmission signal can refer to the prior art. For brevity, the details of the embodiment of the present application will not be repeated.
  • S1420 The baseband processor sends the second information to the coprocessor.
  • the coprocessor receives the second information from the baseband processor.
  • the second information is used to indicate that the polarization type of the target transmitted signal is RHCP.
  • S1430 The coprocessor controls the second control module to close the channel for transmitting the LHCP signal.
  • the coprocessor controls the switch #4 to switch to a connection state with the detection module #3.
  • the coprocessor controls the switch #4 to switch to a connection state with the second port of the radiation unit.
  • the antenna system receives the target transmission signal from the baseband processor and radiates it.
  • the method 1400 may further include S1450 to S1480.
  • the detection module #3 regularly detects the transmission power of the RHCP signal.
  • the detection module #3 feeds back the obtained transmission power value of the RHCP signal to the coprocessor.
  • S1470 The coprocessor sends the transmission power value of the RHCP signal to the baseband processor.
  • the baseband processor adjusts the radio frequency power according to the system performance.
  • FIG. 17 is a schematic flowchart of a signal processing method according to another embodiment of the present application.
  • the method shown in FIG. 17 can be applied to the antenna system shown in FIG. 6.
  • the method 1500 may include S1510 to S1590, and each step is described in detail below.
  • S1510 The radiation unit receives the RHCP signal and the LHCP signal from the satellite. Correspondingly, in S1510, the satellite transmits a signal.
  • the RHCP signal and the LHCP signal can be transmitted by the same satellite or by different satellites.
  • multiple radiating units in the antenna system can receive the RHCP signal and the LHCP signal from the satellite.
  • the first control module detects the received signal, and transmits the information of the obtained signal to the coprocessor.
  • the information of the signal may include information such as the received power, amplitude, and phase of the signal.
  • the structure of the first control module may be as shown in FIG. 7 to FIG. 9. Then S1520 can be that the detection module #1 detects the RHCP signal and transmits the information of the RHCP signal to the coprocessor; the detection module #2 detects the LHCP signal and transmits the information of the LHCP signal to the coprocessor.
  • the multiple detection modules #1 in the antenna system respectively receive the RHCP signal from the corresponding radiation unit, and transmit the information of the obtained RHCP signal to the coprocessor; and the multiple detection modules #2 respectively receive the RHCP signal from the corresponding radiation unit Receive the LHCP signal, and transmit the information of the obtained LHCP signal to the coprocessor.
  • S1530 The coprocessor calculates the respective total received power and DOA of the two signals.
  • the coprocessor can calculate the total received power #1 of the RHCP signal based on the received power of the RHCP signal from the multiple detection modules #1, and can calculate the DOA of the RHCP signal based on the phase information of the RHCP signal from the multiple detection modules #1.
  • the coprocessor can calculate the total received power #2 of the LHCP signal according to the received power of the LHCP signal from the plurality of detection modules #2, and can calculate the DOA of the LHCP signal according to the phase information of the LHCP signal from the plurality of detection modules #2.
  • S1540 The coprocessor determines the target to receive the signal.
  • the coprocessor determines the target received signal according to the total received power #1 and the total received power #2.
  • the coprocessor can determine the target received signal according to the magnitude relationship between the received total received power #1 and total received power #2. For example, if the coprocessor determines that the total received power #1 is greater than the total received power #2, it can be determined that the target received signal is an RHCP signal, that is, it is determined that the antenna system will work in the RHCP polarization mode; if the coprocessor determines that the total received power is If the received power #1 is less than the total received power #2, it can be determined that the target received signal is an LHCP signal, which can confirm that the antenna system will work in the LHCP polarization mode; if the coprocessor determines that the total received power #1 is equal to the total received power #2, it can be determined that the target receiving signal is the RHCP signal or the LHCP signal.
  • S1550 The coprocessor closes the interference channel, and sends the DOA of the target received signal to the beamforming network.
  • the target received signal determined by the coprocessor is an RHCP signal
  • the channel for transmitting the LHCP signal is closed, and the DOA of the RHCP signal is sent to the beamforming network.
  • the target received signal determined by the coprocessor is the LHCP signal
  • the channel for transmitting the RHCP signal is closed, and the DOA of the LHCP signal is sent to the beamforming network.
  • the coprocessor may send the DOA of the interference signal to the beamforming network.
  • the beamforming network adjusts the beam direction of the target received signal according to the DOA of the target received signal.
  • the antenna system receives a signal with sufficient power and sends the radio frequency channel to the baseband processor.
  • the antenna system After the received power of the target received signal received by the antenna system meets the communication requirement, the antenna system sends the received target received signal to the baseband processor.
  • S1580 The baseband processor demodulates the received signal.
  • FIG. 18 shows a schematic flowchart of a signal processing method according to another embodiment of the present application.
  • the method shown in FIG. 18 can be applied to the antenna system shown in FIG. 6.
  • the method 1600 may include S1610 to S1690, and each step is described in detail below.
  • S1610 The terminal establishes a connection with the RHCP signal beam of the satellite.
  • the RHCP signal is the target reception signal, that is, the communication signal; on the contrary, the LHCP signal is the interference signal.
  • S1620 The radiation unit receives the RHCP signal and the LHCP signal. Correspondingly, in S1620, the satellite transmits a signal.
  • the RHCP signal and the LHCP signal can be transmitted by the same satellite or by different satellites.
  • the first control module detects the information of the received signal, and transmits the information of the obtained signal to the coprocessor.
  • the information of the signal may include information such as the received power and phase of the signal.
  • the structure of the first control module may be as shown in FIG. 7 to FIG. 9. Then S1630 can be that the detection module #1 detects the RHCP signal and transmits the information of the RHCP signal to the coprocessor; the detection module #2 detects the LHCP signal and transmits the information of the LHCP signal to the coprocessor.
  • the multiple detection modules #1 in the antenna system respectively receive the RHCP signal from the corresponding radiation unit, and transmit the information of the obtained RHCP signal to the coprocessor; and the multiple detection modules #2 respectively receive the RHCP signal from the corresponding radiation unit Receive the LHCP signal, and transmit the information of the obtained LHCP signal to the coprocessor.
  • the coprocessor can calculate the total received power of the RHCP signal #1 based on the received power of the RHCP signal from the multiple detection modules #1, and can calculate the RHCP signal based on the phase information of the RHCP signal from the multiple detection modules #1 DOA.
  • the coprocessor can calculate the total received power #2 of the LHCP signal according to the received power of the LHCP signal from the plurality of detection modules #2, and can calculate the DOA of the LHCP signal according to the phase information of the LHCP signal from the plurality of detection modules #2.
  • the coprocessor determines whether the total received power ratio of the LHCP signal and the RHCP signal is greater than a first preset threshold, and whether the DOA of the LHCP signal is greater than a second preset threshold.
  • the method 1600 executes S1620.
  • the method 1600 executes S1650.
  • S1650 The coprocessor sends a beam switching request message to the baseband processor.
  • S1660 The baseband processor determines whether to perform beam switching.
  • the method 1600 executes S1620.
  • the baseband processor determines to perform beam switching
  • the baseband processor sends a beam switching response message to the coprocessor, and the method 1600 executes S1670.
  • the method for the baseband processor to determine whether to perform beam switching can refer to the prior art. For brevity, the embodiments of the present application will not be described in detail.
  • S1670 The beamforming network adjusts the signal beam direction and completes the beam switching at the same time.
  • the coprocessor When the coprocessor receives the beam switching response message from the baseband processor, it sends the DOA of the LHCP signal to the beamforming network.
  • the beamforming network realizes precise beam pointing to the LHCP signal according to the DOA of the LHCP signal.
  • the coprocessor instructs the first control module to close the transmission channel for transmitting the RHCP signal, and at the same time to open the transmission channel for transmitting the LHCP signal.
  • the coprocessor controls the switch #1 to be in the off state, and at the same time controls the switch #2 to be in the on state.
  • the coprocessor controls the switch #3 to switch to a connection state with the detection module #2.
  • S1680 The antenna system receives a signal with sufficient power and sends the radio frequency channel to the baseband processor.
  • the antenna system After the received power of the target received signal received by the antenna system meets the communication requirement, the antenna system sends the received target received signal to the baseband processor.
  • the embodiment of the present application only uses the terminal device to establish a connection with the RHCP signal beam as an example for description.
  • the terminal device may also establish a connection with the LHCP signal beam first.
  • the LHCP signal is a communication signal
  • the RHCP signal is an interference signal.
  • the embodiment of the present application also provides a communication device, and the communication device includes the aforementioned antenna system.
  • the communication device may be a terminal device.
  • the terminal device 1900 shown in FIG. 19 may include the antenna system 300 shown in FIGS. 3 to 6.
  • an antenna system with a transceiving function can be denoted as a transceiving unit 1910
  • a processor with a processing function can be denoted as a processing unit 1920.
  • the terminal device 1900 may also include a memory, an input/output device, and the like.
  • FIG. 19 is only an example and not a limitation, and the foregoing terminal device including the antenna system 300 shown in FIGS. 3 to 6 may not rely on the structure shown in FIG. 19.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical or other forms.

Abstract

L'invention concerne un dispositif de traitement de signaux et un procédé de traitement de signaux. Le dispositif de traitement de signaux comprend : une unité de rayonnement, un premier module de commande, un coprocesseur et un canal radiofréquence. Le premier module de commande comprend au moins deux canaux de transmission, les au moins deux canaux de transmission correspondant à des signaux de différents types de polarisation sur une base univoque ; l'unité de rayonnement est utilisée pour recevoir au moins deux trajets de signaux ; le premier module de commande est utilisé pour détecter la puissance de réception des au moins deux trajets de signaux ; le coprocesseur est utilisé pour déterminer un signal de réception cible parmi les au moins deux trajets de signaux en fonction de la puissance de réception des au moins deux trajets de signaux ; le coprocesseur est également utilisé pour demander au premier module de commande de fermer des canaux de transmission, autres que le canal de transmission cible, parmi les au moins deux canaux de transmission, le canal de transmission cible correspondant au signal de réception cible ; et le premier module de commande est également utilisé pour envoyer le signal de réception cible à un processeur de bande de base. Le coprocesseur et le premier module de commande coopèrent pour traiter des signaux, ce qui permet de réduire la charge du processeur de bande de base.
PCT/CN2021/095748 2020-06-04 2021-05-25 Dispositif de traitement de signaux et procédé de traitement de signaux WO2021244351A1 (fr)

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