Satellite ground station communication system on move and communication method thereof

[0026] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0027] figure 1 It shows a schematic structural diagram of an end station system in motion to which an embodiment of the present invention is applied. Such as figure 1 As shown, the mobile communication system 100 can include a satellite communication system 101, a mobile communication system 102, an access controller 103, a tracking controller 104, a tracking platform 105, a global positioning system (Global Positioning System, GPS) 106, Inertial Navigation System (INS) 107, business system 108. The satellite communication system 101 is used to receive the beacon signal of the satellite, and upload the data service of the mobile terminal system to the satellite to realize the service communication of the satellite communication network. The mobile communication system 102 is used for receiving signals from the base station, and uploading the data services of the mobile terminal station system to the base station, so as to realize the service communication of the mobile communication network. The access controller 103 is used to determine and control the switching between the mobile communication system and the satellite communication system; the tracking controller 104 is connected to the satellite communication system 101, the mobile communication system 102, and the access controller 103 through cables, waveguides, etc., for By detecting and processing the received satellite beacon signal of the satellite communication system and the base station signal of the mobile communication system, combining the current attitude of the antenna and the motion parameters of the antenna fed back by GPS and INS, determine the attitude of the antenna to be adjusted, and control the servo motor Adjust the attitude of the antenna to the attitude to be adjusted so that the antenna is aimed at the satellite or base station. The tracking platform 105 is used to carry the satellite communication system and the mobile communication system; to ensure that the satellite communication antenna in the satellite communication system can track the satellite in real time, and the mobile communication antenna in the mobile communication system can be aligned with the base station in real time; the tracking platform may include a rotating platform, Servo motor; the rotating platform can be a three-turntable or a four-round turntable. The service system 108 and the access controller 103 are connected by cables, waveguides, etc., and can include a network switching unit, a network coverage unit, etc., to carry the final data or voice services, or it can be covered by a network coverage unit to enable mobile phones and tablet computers ( Portable android device, Pad), computers and other terminals can implement voice or data services; in the network switching unit, the service interface is generally RJ45 or RJ11 interface, which can directly communicate with the terminal through the network cable or telephone line; or the network switching unit Connect to the network coverage unit, convert it into a wireless signal, and achieve wireless coverage with mobile phones, PAD and other terminals to carry voice or data services.

[0028] figure 2 It shows a schematic structural diagram of a satellite communication system to which an embodiment of the present invention is applied. Such as figure 2 As shown, the architecture of the satellite communication system 101 may include a satellite communication antenna 109, a satellite radio frequency receiving module 110, a satellite radio frequency transmitting module 111, a modem 112, and a beacon 113. The satellite communication system can be Ku band, C band, Ka band, L/S band. The satellite communication antenna 109 may be a reflector antenna, a flat reflector array antenna, a planar array antenna, etc., and is used to receive beacon signals transmitted by a satellite station. The satellite radio frequency receiving module 110 is connected with the satellite communication antenna through a cable, a waveguide, etc., and is used for low-noise amplification and down-conversion of the signal received by the satellite communication antenna to baseband. The satellite radio frequency transmitting module 111 is used to up-convert and amplify the power of the data service, and then transmit to the satellite communication antenna. In a satellite communication system, the satellite radio frequency transmitting module and the receiving module can be a transceiver (Transceiver). The beacon machine 113 is connected with the satellite radio frequency receiving module 110 and the satellite radio frequency transmitting module 111; it is used to detect the signal of the satellite tracking beacon, and branch the received satellite beacon signal, one way to the modem 112 for demodulation, and the other way The tracking controller 104 is used to adjust the satellite communication antenna to track the satellite. The modem 112 is used to receive the satellite beacon signal forwarded by the beacon machine 113, demodulate the beacon signal, and convert it into service data; it is also used to baseband modulate the received data service and then transmit it to the satellite radio frequency Launch module. The modem 112 is connected to the access controller 103, and the access controller 103 determines that the current communication system is a satellite communication system.

[0029] In the satellite communication system, the signal receiving and transmitting process is carried out. Among them, the receiving and transmitting are reciprocal processes. The receiving process is the downlink process: the satellite communication antenna receives the beacon signal transmitted by the satellite, through the low noise block (LNB) part of the satellite radio frequency receiving module, performs low noise amplification, down-conversion to baseband, and then passes After the beacon machine is split, it is transmitted to the modem for demodulation, converted into the final service data, and sent to the access controller. The transmission process is the uplink process: the data service is baseband modulated by the modem, and then output to the up-conversion power amplifier (Block Up-Converter, BUC) part of the satellite radio frequency transmitting module for up-conversion and power amplification, and then through the satellite communication antenna Transmit to the satellite transponder.

[0030] image 3 A schematic structural diagram of a mobile communication system to which an embodiment of the present invention is applied is shown. Such as image 3 As shown, the mobile communication system 102 includes a mobile communication antenna 114, a 2G communication terminal 115, and a 4G communication terminal 116. The mobile communication system can cover 2G and 4G frequency bands respectively, and can also cover all 2/3/4G frequency bands. The mobile communication antenna 114 may be a directional antenna or an omnidirectional antenna, where the radiation beam of the directional antenna on the horizontal plane is a wide beam, such as a sector beam greater than 45 degrees. The mobile communication antenna is used to receive the 2G, 3G, 4G mobile communication signals of the base station, and transmit the received mobile communication signals to the 2G communication terminal 115 and 4G communication terminal 116. The 2G communication terminal 115 and 4G communication terminal 116 and the mobile communication antenna Connection, used to amplify the power of the received mobile communication signal, demodulate and convert it into the final 3/4G data service or 2G voice service. The processes of transmitting and receiving signals are mutually compatible. 3/4G data services or 2G voice services are modulated and amplified by 4G communication terminal 116 and 2G communication terminal 115, respectively, and transmitted to mobile communication antenna for transmission to the base station. Both the 2G communication terminal 115 and the 4G communication terminal 116 are connected to the access controller 103, and the access controller 103 determines that the current communication system is a mobile communication system.

[0031] Figure 4 It shows a schematic structural diagram of another mobile communication system to which an embodiment of the present invention is applied. Such as Figure 4 As shown, the mobile communication system 102 includes a 2G mobile communication antenna 114a and a 3/4G mobile communication antenna 115a, and an integrated mobile terminal 116a. The 2G mobile communication antenna 114a and the 3/4G mobile communication antenna 115a are respectively connected to the integrated mobile terminal 116a to receive the 2G, 3G, 4G mobile communication signals of the base station, and transmit the received mobile communication signals to the integrated mobile terminal 116a. Mobile terminal 116a. The integrated mobile terminal 116a is used to amplify the power of the received mobile communication signal, demodulate and convert it into the final data service. The communication terminal 116a is connected to the access controller 103, and the access controller 103 determines that the current communication system is a mobile communication system.

[0032] Figure 5 It shows a schematic structural diagram of another mobile terminal station system to which an embodiment of the present invention is applied. Such as Figure 5 As shown, the mobile communication system 100 includes a satellite communication system 101, a mobile communication system 102, an access controller 103, a tracking controller 104, a tracking platform 105, GPS 106, INS 107, and a business system 108; among them, the satellite communication system 101 includes satellite communication antenna 109, satellite radio frequency transmitting module 111, satellite radio frequency receiving module 110, modem 112, and beacon 113; mobile communication system 102 includes mobile communication antenna 114, 2G communication terminal 115, 4G communication terminal 116; service system 108 It includes a network switching unit 117 and a network coverage unit 118. The satellite communication system 101 is used to receive the beacon signal of the satellite, and upload the data service of the mobile terminal system to the satellite to realize the service communication of the satellite communication network. The mobile communication system 102 is used for receiving signals from the base station, and uploading the data services of the mobile terminal station system to the base station, so as to realize the service communication of the mobile communication network. The access controller 103 is used to receive the 2G voice service, the 3/4G data service and the data service of the satellite communication system of the mobile communication system, and determine the communication system of the mobile communication system. The tracking controller 104 is connected to the satellite communication system 101, the mobile communication system 102, and the access controller 103 through cables, waveguides, etc., and is used to calculate the initial direction angle of the tracking platform 105 to the satellite or base station, that is, through detection and processing The received satellite beacon signal of the satellite communication system and the base station signal of the mobile communication system, combined with the current attitude of the antenna and the motion parameters of the antenna fed back by GPS and INS, determine the attitude of the antenna to be adjusted, and control the servo motor to adjust the attitude of the antenna To adjust the attitude so that the antenna is aimed at the satellite or base station. The tracking platform 105 is used to carry the satellite communication system and the mobile communication system; to ensure that the satellite communication antenna in the satellite communication system can track the satellite in real time, and the mobile communication antenna in the mobile communication system can be aligned with the base station in real time; the tracking platform may include a rotating platform, Servo motor; the rotating platform can be a three-turntable or a four-round turntable. The satellite communication antenna 109 may be a reflector antenna, a flat reflector array antenna, a planar array antenna, etc., and is used to receive beacon signals sent by satellite stations. The combination of the tracking controller 104 and the tracking platform 105 ensures that the satellite communication antenna or mobile communication antenna can be aligned with the satellite or base station in real time during the movement of the carrier to ensure the stability of the communication link. The satellite radio frequency receiving module 110 is connected with the satellite communication antenna through a cable, a waveguide, etc., and is used for low-noise amplification and down-conversion of the signal received by the satellite communication antenna to baseband. The satellite radio frequency transmitting module 111 is used to up-convert and amplify the power of the data service, and then transmit to the satellite communication antenna. The beacon machine 113 is connected with the satellite radio frequency receiving module 110 and the satellite radio frequency transmitting module 111; it is used to detect the signal of the satellite tracking beacon, and branch the received satellite beacon signal, one way to the modem 112 for demodulation, and the other way The tracking controller 104 is used to adjust the satellite communication antenna to track the satellite. The modem 112 is used to receive the beacon signal of the satellite forwarded by the beacon machine, demodulate the beacon signal, and convert it into service data; it is also used to baseband modulate the received data service and then transmit it to the satellite radio frequency transmission Module. The mobile communication antenna 114 may be a directional antenna or an omnidirectional antenna, where the radiation beam of the directional antenna on the horizontal plane is a wide beam, such as a sector beam greater than 45 degrees. The mobile communication antenna is used to receive the 2G, 3G, 4G mobile communication signals of the base station, and transmit the received mobile communication signals to the 2G communication terminal 115 and 4G communication terminal 116. The 2G communication terminal 115 and 4G communication terminal 116 and the mobile communication antenna Connection, used to amplify the power of the received mobile communication signal, demodulate and convert it into the final 3/4G data service or 2G voice service. The processes of transmitting and receiving signals are mutually compatible. 3/4G data services or 2G voice services are modulated and amplified by 4G communication terminal 116 and 2G communication terminal 115, respectively, and transmitted to mobile communication antenna for transmission to the base station. The service system 108 and the access controller 103 are connected through cables, waveguides, etc., and can include network switching units, network coverage units, etc., to carry the final data or voice services, and can also be covered by network coverage units to enable mobile phones, PADs, and computers Such terminals can implement voice or data services; in the network switching unit, the service interface is generally RJ45 or RJ11 interface, which can directly communicate with the terminal through a network cable or telephone line; or the network switching unit connects to the network coverage unit to convert to wireless Signal, realize wireless coverage with mobile phones, PAD and other terminals to carry voice or data services.

[0033] based on Figure 1 to Figure 5 The system architecture shown, Image 6 Illustratively shows a schematic flow diagram of a communication method of a mobile end station system provided by an embodiment of the present invention, such as Image 6 As shown, the communication method of the mobile terminal system includes the following steps:

[0034] Step 601: Receive a mobile communication signal transmitted by a base station;

[0035] Step 602: In a case where it is determined that the strength of the received mobile communication signal is not less than a threshold value, it is determined that the mobile communication end station system communicates through the mobile communication system.

[0036] Because in the embodiment of the present invention, according to the received mobile communication signal strength and the threshold value of the base station, the communication system of the mobile communication terminal system can be flexibly selected; the strength of the received mobile communication signal is not determined If it is less than the threshold, it is determined that the mobile communication end station system communicates through the mobile communication system; that is, when the mobile communication end station system receives the base station signal strength not less than the threshold, the user can select mobile communication The system communicates, and the mobile communication system has more advantages in tariff and speed than the satellite communication system. In this way, the expensive tariff caused by the use of the satellite communication system can be avoided so that the user does not need to communicate with the network, and the network utilization rate can be improved.

[0037] Optionally, in a case where it is determined that the strength of the received mobile communication signal is less than the threshold value, it is determined that the communication end station system in motion communicates through the satellite communication system.

[0038] In the embodiment of the present invention, the access controller in the mobile terminal system receives the beacon signal of the satellite communication system and the mobile communication signal in the mobile communication system in real time, and when it is determined that the threshold value of the mobile communication signal is not less than the threshold value , It is determined that the communication terminal system in motion communicates through a mobile communication system; in the case where it is determined that the mobile communication signal is less than a threshold value, it is determined that the communication terminal system in motion communicates through a satellite communication system.

[0039] Optionally, in the case where it is determined that the strength of the received mobile communication signal is not less than a threshold value, determining that the communication terminal system in motion communicates through the mobile communication system includes: When the strength of the mobile communication signal is not less than the threshold value, and the current mobile terminal station system uses a satellite communication system for communication, switching from the satellite communication system to the mobile communication system for communication. In order to ensure a better experience for customers in the embodiment of the present invention, the threshold in the access controller is generally 2-5 dB higher than the system threshold to leave a certain margin reserve. The mobile communication system in the embodiment of the present invention mainly uses a mobile communication system, supplemented by a satellite communication system. It is aimed at general ground vehicle and emergency communication scenarios: natural disasters such as earthquakes and floods, and mountainous areas with poor mobile network coverage. Or scenarios such as high-end applications that require seamless coverage.

[0040] Optionally, the mobile communication system includes an omnidirectional mobile communication antenna or a directional mobile communication antenna; wherein, if the mobile communication system includes a directional mobile communication antenna, then: the determining that the communication terminal system in motion passes all After the mobile communication system performs communication, it includes: determining the to-be-adjusted attitude of the directional mobile communication antenna according to the mobile communication signal, the current attitude of the directional mobile communication antenna, and the motion parameters of the directional mobile communication antenna The directional mobile communication antenna is adjusted according to the posture to be adjusted of the directional mobile communication antenna, so that the adjusted radiation beam direction of the directional mobile communication antenna is aligned with the base station.

[0041] Optionally, when the mobile communication antenna is a directional antenna, the principle of the mobile communication system tracking the ground base station is:

[0042] The tracking platform detects the error angle between the antenna radiation beam pointing and the base station according to the mobile communication signal, the current posture of the directional mobile communication antenna obtained by the GPS and INS, and the motion parameters of the directional mobile communication antenna, and tracks The controller controls the directional mobile communication antenna to move in the direction where the error is reduced, so that the radiation beam of the mobile communication antenna is aligned with the base station. The current attitude of the directional mobile communication antenna in the embodiment of the present invention includes the elevation angle, azimuth angle, and polarization angle of the directional mobile communication antenna; the motion parameters of the directional mobile communication antenna include the speed, acceleration, and geomagnetic flux information of the mobile communication antenna Wait.

[0043] Optionally, there are many methods for the mobile communication end station system to automatically track the base station during the movement of the carrier. Since the mobile communication antenna uses a horizontal wide beam antenna, such as a sector beam or even a semi-omnidirectional beam greater than 45 degrees, Therefore, the step-extreme tracking method can be used for tracking. When the mobile communication antenna is aligned with the base station, a small angle step rotation is made on the azimuth plane, and the field of the received mobile communication signal is measured within an appropriate integration time. Strong discrimination of increase and decrease, real-time correction of azimuth angle to align the position of the base station to keep the mobile communication antenna and base station tracking. Optionally, when the mobile communication antenna is an omni-directional antenna, because the beam radiated by the omni-directional antenna is a non-directional beam, there is no need for the mobile communication antenna to track the base station; the access controller determines whether the received mobile communication signal is If the intensity is not less than the threshold value, it is determined that the mobile communication end station system communicates through the mobile communication system, and the mobile communication end station system keeps communicating with the mobile communication system until the detected mobile communication signal strength is less than the threshold At the time, it is determined that the communication terminal system in motion communicates through the satellite communication system.

[0044] In the embodiment of the present invention, the mobile communication antenna is a directional antenna with higher gain than an omnidirectional antenna, which can ensure that the mobile communication network keeps working at a place farther from the base station. At the same time, at the same distance from the base station, the directional antenna is used. The omnidirectional antenna has large transmission capacity and stable signal. For shipboard, generally, the use of omnidirectional antennas can cover 5-8 nautical miles offshore, while directional antennas can reach 10-15 nautical miles. For airborne, omnidirectional antennas are usually in the form of beams with no horizontal plane direction and a certain lobe width on the elevation plane. For beam coverage at high latitudes, directional antennas can make up for the blind spots at the depression angle of the omnidirectional antenna, and the coverage of directional antennas It will be more adequate and the transmission rate will be higher.

[0045] Optionally, in the case where it is determined that the strength of the received mobile communication signal is less than the threshold value, determining that the communication terminal system in motion communicates through the satellite communication system includes: When the strength of the mobile communication signal is less than the threshold, and the mobile communication system currently uses the mobile communication system for communication, switching from the mobile communication system to the satellite communication system for communication. In the embodiment of the present invention, the mobile communication system mainly uses a satellite communication system, and a mobile communication system is a supplement. It can be applied to scenarios where shipborne, airborne, and ground base stations cover obvious blind areas.

[0046] Optionally, in the embodiment of the present invention, when it is determined that the strength of the received mobile communication signal is less than the threshold value, it may communicate with the current mobile communication according to the data of the base station coverage area preset in the tracking controller. The current attitude and position parameters of the antenna are matched (position parameters include parameters such as latitude, longitude, height, etc.) to determine whether the mobile base station cell needs to be switched. If the base station cell needs to be switched, adjust the tracking platform to align with the new base station. If it is determined that there is no match, that is, the network coverage area of ​​the mobile communication system has been exceeded, the access controller switches from the mobile communication system to the satellite communication system for communication.

[0047] Optionally, the mobile terminal system uses a satellite communication system for communication to ensure real-time tracking between the mobile terminal system and the satellite. Optionally, the basic principle of tracking satellites by the mobile terminal station system is that the mobile terminal station system receives the beacon signal transmitted by the satellite, and the tracking platform is based on the received satellite beacon signal and the antenna signal obtained by GPS and INS. The current attitude and motion parameters detect the error angle between the antenna radiation beam pointing and the satellite direction, and the tracking controller controls the satellite communication antenna to move in the direction where the error is reduced, so as to align the satellite communication antenna's radiation beam with the satellite. The current attitude of the satellite communication antenna in the embodiment of the present invention includes the elevation angle, azimuth angle, and polarization angle of the satellite communication antenna; the motion parameters of the satellite communication antenna include movement speed, acceleration, and geomagnetic flux information of the satellite communication antenna.

[0048] Optionally, there are many methods for the mobile terminal station system to automatically track satellites during the movement of the carrier, such as cone scan tracking, step-extreme tracking, and single pulse tracking; among them, cone scan tracking is a widely used method. The self-tracking system is to move the feed system in a circular motion around the axis of symmetry of the antenna, or tilt the feed, or tilt the secondary reflection surface, so that the antenna beam rotates in a conical shape. When the antenna axis is aligned with the satellite, the beacon level received by the earth station is a constant value; when the antenna deviates from the satellite, the beacon level will be amplitude modulated by a very low frequency signal. The modulation depth is related to the distance the beam deviates from the satellite axis, and the phase of the modulation is related to the direction of the beam deviation, that is, the pointing error of the antenna beam can be detected from the amplitude and phase of the modulated signal.

[0049] Optionally, the embodiment of the present invention provides a process for tracking satellites by an on-the-fly end station system: Optionally, the satellite communication system includes a satellite communication antenna; After the satellite communication system performs communication, it includes: determining the to-be-adjusted attitude of the satellite communication antenna according to the beacon signal of the satellite, the current attitude of the satellite communication antenna, and the motion parameters of the satellite communication antenna; The satellite communication antenna is adjusted according to the to-be-adjusted attitude of the satellite communication antenna, so that the adjusted radiation beam of the satellite communication antenna is aligned with the satellite.

[0050] Optionally, the mobile end station system can be in the form of all-outdoor integration and split integration. In the form of full outdoor integration of the mobile terminal system, all structures other than the business system are fully integrated outdoors, Figure 7 Illustratively shows a schematic structural diagram of an all-outdoor integrated form of a mobile terminal system applying an embodiment of the present invention. The all-outdoor integrated form can effectively reduce radio frequency cables, thereby reducing energy loss caused by long cables, and thereby improving the performance of the mobile terminal system. The mobile terminal system can be split integration, that is, part of the structure is integrated indoors, and part of the structure is integrated outdoors. Figure 8 Exemplarily shows a structural schematic diagram of a split and integrated form of an on-the-fly end station system applying an embodiment of the present invention; Figure 8 As shown, the access controller 103 and the service system 108 are integrated indoors, and other structures are integrated outdoors.

[0051] Image 6 Illustratively shows a schematic flow chart of a communication method of a mobile communication end station system provided by an embodiment of the present invention. When it is determined that the strength of the received mobile communication signal is not less than a threshold, the mobile communication signal is determined to be The end station system communicates through the mobile communication system. The mobile communication end station system in the embodiment of the present invention has a dual system of a satellite communication system and a mobile communication system, and can be switched from a mobile communication system to a network communication system. Optionally, the satellite communication system is mainly used in the embodiment of the present invention. The mobile communication system is a supplementary detailed communication process of the mobile terminal system, Picture 9 It exemplarily shows another communication method of the mobile terminal system provided by the embodiment of the present invention, and the detailed process is as follows.

[0052] Such as Picture 9 As shown, the communication method of the mobile terminal system includes:

[0053] Step 901, initial star search;

[0054] Before the satellite communication antenna tracks the satellite in real time, an initial star search must be carried out. After the satellite communication antenna completes the initial star search, the satellite communication antenna enters the satellite tracking state;

[0055] Step 902: According to the current attitude and motion parameters of the satellite communication antenna obtained by GPS and INS;

[0056] Step 903: Receive a beacon signal transmitted by the satellite;

[0057] Optionally, when the mobile terminal station system does not receive the beacon signal transmitted by the satellite, return to step 901 to search for the satellite again;

[0058] Step 904: Determine the error angle between the direction of the satellite communication antenna radiation beam and the satellite direction according to the received satellite beacon signal and the current attitude and motion parameters of the satellite communication antenna obtained by GPS and INS;

[0059] Optionally, according to the error angle between the direction of the radiation beam of the satellite communication antenna and the direction of the satellite, the attitude to be adjusted of the satellite communication antenna can be determined;

[0060] Step 905: Adjust the attitude of the satellite communication antenna so that the satellite communication antenna and the satellite keep real-time tracking;

[0061] Step 906: Determine whether the current position of the satellite communication antenna matches the data of the preset base station coverage area; if it matches, go to step 907; if it does not match, go to step 908;

[0062] Optionally, in the embodiment of the present invention, the current position of the satellite communication antenna can be obtained according to GPS and INS; the data of the coverage area of ​​the base station is preset in the tracking controller;

[0063] Step 907, determine whether the mobile communication signal of the base station is received; if it is received, perform step 909, if not, perform step 908;

[0064] Step 908: Use the satellite communication system to adjust the satellite communication antenna to keep real-time tracking with the satellite;

[0065] Step 909: Determine whether the mobile communication signal received from the base station is less than the threshold; if it is not less than, go to step 910, if it is less, go to step 911;

[0066] Step 910: Switch to the mobile communication system, and adjust the mobile communication antenna to aim at the base station;

[0067] Step 911, determine whether the mobile communication antenna needs to switch the base station cell; if yes, go to step 912, if not, go to step 913;

[0068] Step 912, switch the cell of the base station, and adjust the mobile communication antenna to aim at the base station;

[0069] Step 913: Switch to the satellite communication system and adjust the attitude of the satellite communication antenna to ensure that the satellite communication antenna tracks the satellite in real time.

[0070] The mobile communication system in the embodiment of the present invention can also use mobile communication systems as the main, supplemented by satellite communication systems, such as general ground vehicle, emergency communication scenarios: natural disasters such as earthquakes and floods, and poor mobile network coverage. Mountainous areas, or high-end applications requiring seamless coverage.

[0071] Based on the same concept, the embodiment of the present invention provides a mobile end station system for executing the above method flow. The possible structure diagram of the mobile end station system provided by the embodiment of the present invention is as follows: Figure 1 to Figure 5 As shown in any one or more of the figures, as shown in the above figures, the moving end station system includes:

[0072] Satellite communication system for receiving satellite communication signals transmitted by satellites;

[0073] Mobile communication system for receiving mobile communication signals transmitted by base stations;

[0074] The access controller is connected to the mobile communication system and the satellite communication system; and is used to determine that the communication terminal system in motion passes when it is determined that the strength of the received mobile communication signal is not less than a threshold value The mobile communication system communicates.

[0075] Optionally, the access controller is further configured to determine that the communication end station system in motion is performed through the satellite communication system in a case where it is determined that the strength of the received mobile communication signal is less than the threshold value. Communication.

[0076] Optionally, the access controller is configured to: when it is determined that the strength of the received mobile communication signal is not less than a threshold, and the communication terminal system currently in motion uses a satellite communication system for communication, the The satellite communication system is switched to the mobile communication system for communication; when it is determined that the strength of the received mobile communication signal is less than a threshold value, and the mobile communication system currently uses the mobile communication system for communication, The mobile communication system is switched to the satellite communication system for communication.

[0077] Optionally, the mobile communication end station system further includes a tracking controller and a tracking platform; the mobile communication system includes an omnidirectional mobile communication antenna or a directional mobile communication antenna; wherein, if the mobile communication system includes a directional mobile Communication antenna, then: the tracking controller is connected to the mobile communication system and the satellite communication system; it is used for moving according to the mobile communication signal, the current attitude of the directional mobile communication antenna, and the directional movement The motion parameters of the communication antenna determine the attitude to be adjusted of the directional mobile communication antenna; the tracking platform is connected to the tracking controller and is used to move the directional movement according to the attitude to be adjusted of the directional mobile communication antenna. The communication antenna is adjusted so that the adjusted radiation beam direction of the directional mobile communication antenna is aligned with the base station.

[0078] Optionally, the satellite communication system includes a satellite communication antenna; the tracking controller is used to perform the tracking according to the beacon signal of the satellite, the current attitude of the satellite communication antenna, and the motion parameters of the satellite communication antenna, Determine the to-be-adjusted attitude of the satellite communication antenna; the tracking platform is used to adjust the satellite communication antenna according to the to-be-adjusted attitude of the satellite communication antenna, so that the adjusted radiation of the satellite communication antenna The beam is aligned with the satellite.

[0079] It can be seen from the above content that, in the embodiment of the present invention, the communication system of the mobile communication end station system is flexibly selected according to the received mobile communication signal intensity and the threshold value of the base station; If the strength of the mobile communication signal is not less than the threshold, it is determined that the mobile communication end station system communicates through the mobile communication system; that is, the mobile communication end station system receives the base station signal strength not less than the threshold Users can choose a mobile communication system for communication, and compared to satellite communication systems, mobile communication systems have more advantages in terms of tariff and speed. In this way, it can avoid expensive tariffs caused by the use of satellite communication systems to make users communicate without the network. Can improve network utilization.

[0080] Those skilled in the art should understand that the embodiments of the present invention may be provided as methods or computer program products. Therefore, the present invention may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may be in the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0081] The present invention is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated for use In the process Figure one Process or multiple processes and/or boxes Figure one A device with functions specified in a block or multiple blocks.

[0082] These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device is implemented in the process Figure one Process or multiple processes and/or boxes Figure one Functions specified in a box or multiple boxes.

[0083] These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. Instructions are provided to implement the process Figure one Process or multiple processes and/or boxes Figure one Steps of functions specified in a box or multiple boxes.

[0084] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0085] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.