Satellite communication method and device

Abstract

The invention provides a satellite communication method and device, the method is applied to terminal equipment, the terminal equipment comprises multiple groups of phase-adjustable radio frequency transceiving links, and the method comprises the following steps: obtaining current position information and current attitude information of the terminal equipment; determining a first spatial position of a target satellite corresponding to the current position information based on preset satellite ephemeris information and the current position information; and based on the current attitude information and the first spatial position, adjusting phase differences among the plurality of groups of radio frequency receiving and transmitting links, so that a first radiation direction formed by the plurality of groups of radio frequency receiving and transmitting links is aligned with the first spatial position. According to the method provided by the embodiment of the invention, high-quality communication can be maintained for a long time, so that the user experience can be improved.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of satellite communication technology, and more specifically, to a satellite communication method and device. Background Art

[0002] With the development of communication technology, some communication systems can support satellite communication, that is, terminal devices can communicate through satellites. However, the moving speed of satellites is very fast (for example, for satellites in non-synchronous orbits, their relative moving speed can reach 10,000 kilometers per hour). When the terminal device needs to maintain communication with the satellite for a long time (such as long-term satellite calls), it is necessary to constantly adjust the position of the terminal device to obtain the best communication quality. Summary of the invention

[0003] The embodiments of the present application provide a satellite communication method and device. Various aspects involved in the embodiments of the present application are introduced below.

[0004] In a first aspect, a satellite communication method is provided, which is applied to a terminal device, wherein the terminal device includes a plurality of groups of phase-adjustable RF transceiver links, and the method includes: obtaining current position information and current attitude information of the terminal device; determining a first spatial position of a target satellite corresponding to the current position information based on preset satellite ephemeris information and the current position information; and adjusting a phase difference between the plurality of groups of RF transceiver links based on the current attitude information and the first spatial position, so that a first radiation direction formed by the plurality of groups of RF transceiver links is aligned with the first spatial position.

[0005] In a second aspect, a satellite communication device is provided, which is applied to a terminal device, and the terminal device includes a plurality of groups of phase-adjustable RF transceiver links, and the device includes: an acquisition unit, used to acquire current position information and current attitude information of the terminal device; a first determination unit, used to determine a first spatial position of a target satellite corresponding to the current position information based on preset satellite ephemeris information and the current position information; and an adjustment unit, used to adjust the phase difference between the plurality of groups of RF transceiver links based on the current attitude information and the first spatial position, so that a first radiation direction formed by the plurality of groups of RF transceiver links is aligned with the first spatial position.

[0006] According to a third aspect, a terminal device is provided, comprising: a positioning module for acquiring current position information of the terminal device; a sensor module for acquiring current attitude information of the terminal device; a radio frequency transceiver module, comprising a plurality of groups of radio frequency transceiver links with adjustable phases; and a processor, electrically connected to the positioning module, the sensor module and the radio frequency transceiver module, for determining a first spatial position of a target satellite corresponding to the current position information based on preset satellite ephemeris information and the current position information, and adjusting a phase difference between the plurality of groups of radio frequency transceiver links based on the current attitude information and the first spatial position, so that a first radiation direction formed by the plurality of groups of radio frequency transceiver links is aligned with the first spatial position.

[0007] In a fourth aspect, a chip is provided, comprising a processor, configured to call a program from a memory so that a device equipped with the chip executes the method described in the first aspect.

[0008] According to a fifth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method described in the first aspect.

[0009] According to a sixth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method described in the first aspect.

[0010] According to a seventh aspect, a computer program is provided, wherein the computer program enables a computer to execute the method described in the first aspect.

[0011] In an embodiment of the present application, the phase difference between multiple groups of RF transceiver links of the terminal device is adjusted based on the current posture information of the terminal device and the first spatial position of the target satellite, so that the first radiation direction formed by the multiple groups of RF transceiver links is aligned with the first spatial position. In this way, there is no need to adjust the posture of the terminal device every time, and the radiation direction of the terminal device can be aligned with the target satellite for a longer time, and high-quality communication can be maintained for a longer time, which helps to improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the network topology of a satellite communication system.

[0013] Figure 2 A schematic diagram of the cross section of an antenna's radiation waveform.

[0014] Figure 3 The present invention is a schematic structural diagram of a radio frequency system of a terminal device supporting satellite communications.

[0015] Figure 4 It is a schematic flow chart of a satellite communication method provided in one embodiment of the present application.

[0016] Figure 5 It is a schematic structural diagram of a multi-antenna radio frequency system in one embodiment of the present application.

[0017] Figure 6 A schematic diagram of directional beams formed by multiple groups of radio frequency transceiver links in an embodiment of the present application.

[0018] Figure 7 It is a schematic structural diagram of a multi-antenna radio frequency system in another embodiment of the present application.

[0019] Figure 8 It is a schematic flow chart of a satellite communication method provided in another embodiment of the present application.

[0020] Fig. 9 It is a structural schematic diagram of a satellite communication device provided in an embodiment of the present application.

[0021] Fig.10 It is a structural schematic diagram of a device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] The technical solutions in the embodiments of the present application can be applied to various terminal devices, which may be mobile phones, watches, tablet computers, laptop computers, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, devices in self-driving, devices in smart homes, etc., which are not limited in the embodiments of the present application.

[0024] With the development of communication technology, some communication systems can support satellite communication, that is, terminal devices can communicate via satellites (also called communication satellites). Satellite communication has very good coverage for the earth's surface that is rarely visited by people, such as non-land, remote mountainous areas, and polar regions. Therefore, satellite communication has also received more and more attention. The terminal device in the embodiment of the present application can support satellite communication.

[0025] Figure 1It is a network topology of a satellite communication system. Figure 1 As shown, the gateway can connect the satellite and the base station, the base station is connected to the core network, and the UE can communicate wirelessly through the satellite. When the UE is within the coverage of the base station, it can also communicate wirelessly through the base station. It should be noted that Figure 1 Only one gateway is shown in the figure, and in practice one or more gateways may be deployed according to specific circumstances.

[0026] Since the satellite is hundreds to tens of thousands of kilometers away from the earth, the long distance causes the communication signal to attenuate greatly. At the same time, the radiation direction of the terminal device's antenna is usually not a completely regular spherical radiation pattern. At the same distance, the energy in the direction of the antenna's maximum radiation pattern is significantly larger than in other directions. In order to obtain high-quality communication effects, it is usually necessary to align the maximum radiation direction of the terminal device with the satellite, so that the signal strength of the signal transmitted by the terminal device can be maximized when it reaches the satellite. Signal strength is one of the extremely important parameters of communication quality. Figure 2 The figure shows a cross-sectional view of the radiation waveform of an antenna of a terminal device. Figure 2 It can be seen that the signal strength of the antenna is the largest in the 0 degree direction.

[0027] Satellite ephemeris, also known as two line orbital element (TLE), uses the mathematical relationship between the six orbital parameters of Kepler's law to determine the time, coordinates, position, speed and other parameters of the flying object with extremely high accuracy. Satellite ephemeris can accurately calculate, predict, describe and track the time, position, speed and other operating states of satellites and flying objects; it can express the precise parameters of flying objects such as celestial bodies, satellites, spacecraft, missiles, space debris, etc.; it can place flying objects in three-dimensional space; it can use time to describe the past, present and future of celestial bodies.

[0028] The current satellite communication solution can include the following steps to achieve satellite alignment:

[0029] (1) First, the radiation pattern of the terminal device is obtained through over the air (OTA) testing, and then the maximum radiation direction of the terminal device is obtained;

[0030] (2) The spatial position of the target satellite can be known through the pre-downloaded satellite ephemeris information;

[0031] (3) Obtaining the location, orientation, tilt angle, direction of movement and other information of the terminal device through the global navigation satellite system (GNSS), compass, gyroscope, accelerometer and other sensors (one or more) built into the terminal device.

[0032] After obtaining the above three sets of information, the sensor transmits the perceived parameters to the processor (such as the central processing unit (CPU)), and the processor transmits the relevant information to the corresponding application (APP). The user interface (UI) on the APP guides the user to perform satellite pointing operations (adjust the attitude, direction, orientation, etc. of the terminal device), so that the maximum radiation direction of the terminal device can be pointed to the satellite in the air, completing the satellite pointing operation and obtaining the best communication quality.

[0033] Figure 3 This is a schematic diagram of the radio frequency system of a terminal device that supports satellite communications. Figure 3 As shown, the radio frequency system may include a transceiver 100, a power amplifier (PA) 101, a low noise amplifier (LNA) 103 of a receiving path (RX), a transceiver switch 104, a processor 106, an antenna 110, a positioning module 107, and a transmitter module 108. The transceiver 100 may output a low-power transmission signal, demodulate a received (RX) signal, and output a transmitted (TX) signal; the processor 106 may output a trigger signal to control the transceiver 100 to perform a corresponding action.

[0034] However, satellites move very fast (for example, satellites in non-synchronous orbits can move at speeds of up to 10,000 km / h relative to the ground). When a terminal device has only one antenna, its radiation pattern is fixed. If the terminal device needs to maintain communication with the satellite for a long time (such as a long satellite call), in order to obtain the best communication quality, the terminal device needs to be constantly adjusted so that the maximum radiation direction of the terminal device is aligned with the satellite. This alignment process is not user-friendly and cannot achieve high-quality communication at any time and in any direction, thus affecting the user experience.

[0035] In order to solve one or more of the above-mentioned technical problems, the present application proposes a satellite communication method and device, which adopts multiple antennas (each antenna can include corresponding receiving links and transmitting links (which can be called transceiver links or radio frequency transceiver links)) to achieve the purpose of adjustable radiation direction. At this time, the position of the current target satellite in the air is judged according to the satellite's ephemeris information, that is, the terminal device can be aligned with the satellite for a long time and only maintain high-quality communication.

[0036] Combine the following Figures 4 to 7 The embodiments of the present application are described in detail with examples.

[0037] Figure 4 400 is a schematic flow chart of a satellite communication method according to an embodiment of the present application. The method 400 may be applied to a terminal device. The method 400 may include steps S410, S420 and S430, which are as follows:

[0038] S410, the terminal device obtains the current location information and current posture information of the terminal device.

[0039] The terminal device may include a positioning module, and the terminal device may obtain the current location information of the terminal device through the positioning module. Optionally, the positioning module may be a satellite positioning module (such as a GNSS module) or the like.

[0040] The terminal device may include a sensor module, and the terminal device may obtain current posture information of the terminal device through the sensor module. Optionally, the posture information may include information such as the azimuth angle, tilt angle, and movement direction of the terminal device. Optionally, the sensor module may include devices such as a compass, a gravity sensor, an acceleration sensor, and a gyroscope.

[0041] The terminal device may include multiple groups of radio frequency transceiver links. Optionally, the multiple groups of radio frequency transceiver links may refer to two groups of radio frequency transceiver links or more than two groups of radio frequency transceiver links.

[0042] Figure 5 FIG. 1 is a schematic structural diagram of a multi-antenna radio frequency system in an embodiment of the present application. Figure 5In the example diagram shown, the RF system may include a positioning module 107, a sensor module 108, a processor 106, a transceiver 100 and four groups of RF transceiver links, wherein the positioning module 107, the sensor module 108 and the transceiver 100 are electrically connected to the processor 106, the RF transceiver link corresponding to antenna 1 includes PA101 of the transmitting path, LNA103 of the receiving path, phase shifter 102 and transceiver switching switch 104, the RF transceiver link corresponding to antenna 2 includes PA111 of the transmitting path, LNA113 of the receiving path, phase shifter 112 and transceiver switching switch 114, the RF transceiver link corresponding to antenna 3 includes PA121 of the transmitting path, LNA123 of the receiving path, phase shifter 122 and transceiver switching switch 124, and the RF transceiver link corresponding to antenna 4 includes PA131 of the transmitting path, LNA133 of the receiving path, phase shifter 132 and transceiver switching switch 134.

[0043] Figure 5 The phase shifter 102, the phase shifter 112, the phase shifter 122 and the phase shifter 132 are all arranged in the transceiver 100. It should be noted that the phase shifter 102, the phase shifter 112, the phase shifter 122 and the phase shifter 132 may also be arranged in the transceiver switching switch 104, the transceiver switching switch 114, the transceiver switching switch 124 and the transceiver switching switch 134, respectively, or the phase shifter 102, the phase shifter 112, the phase shifter 122 and the phase shifter 132 may also be arranged in other positions in the radio frequency system, which is not limited in the embodiments of the present application.

[0044] S420: The terminal device determines a first spatial position of the target satellite corresponding to the current position information based on the satellite ephemeris information and the current position information.

[0045] The terminal device can determine the spatial position of one or more satellites in the sky according to the satellite ephemeris information, and the terminal device can determine the target satellite (among the one or more satellites in the sky) according to its own current position information. Optionally, the target satellite here can refer to the satellite closest to the current position of the terminal device, or can refer to the satellite that enables the terminal device to have the best satellite communication quality at the current position.

[0046] Optionally, the satellite ephemeris information may be preset (pre-configured), or may be received or downloaded by the terminal device from a target satellite, a server or a network.

[0047] Optionally, the first spatial position may be represented by a geocentric coordinate system or any other coordinate system.

[0048] S430, the terminal device adjusts the phase difference between the multiple groups of radio frequency transceiver links based on the current posture information and the first spatial position, so that the first radiation direction formed by the multiple groups of radio frequency transceiver links is aligned with the first spatial position.

[0049] Multiple groups of radio frequency transceiver links of the terminal device may correspond to multiple phase shifters respectively.

[0050] The terminal device can use each phase shifter among the multiple phase shifters to adjust the phase of the RF transceiver link corresponding to the phase shifter to adjust the phase difference between the multiple groups of RF transceiver links.

[0051] For example, Figure 5 As shown, the terminal device can obtain the current location information of the terminal device through the positioning module 107, and the positioning module 107 can transmit the current location information to the processor 106. The terminal device can obtain the current posture information of the terminal device through the sensor module 108, and the sensor module 108 can transmit the current posture information to the processor 106. The processor 106 can calculate the phase shift parameters corresponding to each RF transceiver link according to the current location information and the current posture information. Subsequently, the processor 106 can control the phase shifter 102 according to the phase shift parameters corresponding to the RF transceiver link corresponding to the antenna 1, so as to adjust the phase shift of the RF transceiver link corresponding to the antenna 1 through the phase shifter 102. The terminal device can control the phase shifter 112 according to the phase shift parameter corresponding to the RF transceiver link corresponding to antenna 2, so as to adjust the phase of the RF transceiver link corresponding to antenna 2 through the phase shifter 112. The terminal device can control the phase shifter 122 according to the phase shift parameter corresponding to the RF transceiver link corresponding to antenna 3, so as to adjust the phase of the RF transceiver link corresponding to antenna 3 through the phase shifter 122. The terminal device can control the phase shifter 132 according to the phase shift parameter corresponding to the RF transceiver link corresponding to antenna 4, so as to adjust the phase of the RF transceiver link corresponding to antenna 4 through the phase shifter 132, so as to adjust the phase difference between multiple groups of RF transceiver links.

[0052] The first radiation direction may refer to: the radiation direction of a directional beam (at a certain moment or a certain time period) formed by concentrating (or focusing) the radiation directions corresponding to multiple groups of RF transceiver links. Optionally, the first radiation direction may also refer to: the maximum radiation direction (at a certain moment or a certain time period) formed by concentrating (or focusing) the radiation directions corresponding to multiple groups of RF transceiver links. For example, each RF transceiver link in multiple groups of RF transceiver links has a corresponding transceiver link. By designing the antenna (or adjusting the signal), the radiation direction corresponding to each RF transceiver link in multiple groups of RF transceiver links can be concentrated to form a directional beam.

[0053] In this way, the radiation energy of multiple groups of RF transceiver links of the terminal device can be focused. Compared with the traditional single RF transceiver link (single antenna) solution, lower energy consumption can be used to maintain the same communication quality as a single RF transceiver link. Therefore, the power consumption of the terminal device can be reduced.

[0054] For example, Figure 6 FIG. 1 is a schematic diagram of directional beams formed by multiple groups of RF transceiver links in an embodiment of the present application. Figure 6 In the example diagram shown, the directional beam formed by multiple groups of RF transceiver links has the maximum signal strength at the 0-degree direction. At this time, the 0-degree direction can be considered as the first radiation direction formed by the multiple groups of RF transceiver links. Of course, the terminal device can also adjust the phase difference between the multiple groups of RF transceiver links so that the first radiation direction formed by the multiple groups of RF transceiver links has the maximum signal strength at an angle of 90 degrees or -60 degrees.

[0055] In some implementations, when a first preset condition is met, the phase difference between multiple groups of RF transceiver links can be adjusted based on the current posture information and the first spatial position so that the first radiation direction is aligned with the first spatial position.

[0056] Optionally, the first preset condition may include: the duration from the moment when the second radiation direction formed by the multiple groups of RF transceiver links is aligned with the second spatial position of the target satellite is greater than or equal to a first threshold, and / or the signal strength of the target satellite is less than or equal to a second threshold.

[0057] Optionally, the second radiation direction may be directed toward the target satellite after the terminal device adjusts its own posture, or may be directed toward the target satellite after the terminal device adjusts the phase difference of multiple groups of radio frequency transceiver links.

[0058] For example, the terminal device can adjust its own posture so that the second radiation direction is aligned with the second spatial position of the target satellite at the first moment. Then, when the time length from the first moment is greater than or equal to the first threshold, the terminal device can adjust the phase difference between the multiple groups of RF transceiver links so that the first radiation direction formed by the multiple groups of RF transceiver links is aligned with the first spatial position.

[0059] For another example, when the signal strength of the target satellite is less than or equal to the second threshold, the terminal device may adjust the phase difference between the multiple groups of RF transceiver links so that the first radiation direction formed by the multiple groups of RF transceiver links is aligned with the first spatial position.

[0060] Since the satellite is constantly moving, the terminal device can determine the motion trajectory of the target satellite based on the satellite ephemeris information and divide the motion trajectory of the target satellite into multiple segments. At this time, the phase shift parameters corresponding to each segment of the motion trajectory are determined so that the radiation direction corresponding to each set of phase shift parameters is aligned with a spatial position in each segment of the motion trajectory.

[0061] Optionally, a spatial position in each motion trajectory here may refer to: the spatial position of the center point in each motion trajectory, the spatial position of the starting point in each motion trajectory, the spatial position of the end point in each motion trajectory, or the spatial position of any specified point in each motion trajectory.

[0062] In some embodiments, the terminal device may determine multiple sets of phase shift parameters of the terminal device. The multiple sets of phase shift parameters may correspond to multiple radiation directions formed by multiple sets of radio frequency transceiver links. Optionally, the multiple radiation directions may include a first radiation direction. Optionally, the multiple radiation directions may also include a second radiation direction.

[0063] For example, the terminal device can determine the target motion trajectory of the target satellite based on the satellite ephemeris information; the terminal device can divide the target motion trajectory into multiple motion trajectories, and the multiple motion trajectories can correspond to multiple sets of phase shift parameters; the terminal device can determine the multiple sets of phase shift parameters based on the current posture information and the multiple motion trajectories, so that the radiation direction corresponding to each set of phase shift parameters in the multiple sets of phase shift parameters can be aligned with a specific spatial position in a motion trajectory in the multiple motion trajectories.

[0064] Optionally, the terminal device may determine multiple sets of phase shift parameters of the terminal device before executing S420. In some embodiments, the terminal device may adjust the phase difference between multiple sets of RF transceiver links according to the phase shift parameters corresponding to the first radiation direction so that the first radiation direction is aligned with the first spatial position.

[0065] Optionally, the terminal device may also determine multiple sets of phase shift parameters of the terminal device before aligning the second radiation direction with the second spatial position. In some embodiments, the terminal device may adjust the phase difference between multiple sets of RF transceiver links according to the phase shift parameters corresponding to the second radiation direction so that the second radiation direction is aligned with the second spatial position.

[0066] In an embodiment of the present application, the phase difference between multiple groups of RF transceiver links of the terminal device is adjusted based on the current posture information of the terminal device and the first spatial position of the target satellite, so that the first radiation direction formed by the multiple groups of RF transceiver links is aligned with the first spatial position. In this way, there is no need to adjust the posture of the terminal device every time, and the radiation direction of the terminal device can be aligned with the target satellite for a longer time, and high-quality communication can be maintained for a longer time, which helps to improve user experience.

[0067] It should be noted that the embodiment of the present application does not limit the number of RF transceiver links of the terminal device.

[0068] Optionally, the number of RF transceiver links in the terminal device may be related to the power consumption of the terminal device and the adjustment frequency of the phase difference between multiple groups of RF transceiver links. For example, in order to achieve a higher beam integration, the number of RF transceiver links may be increased (for example, Figure 7 As shown, the number of groups is increased to N, where N is a positive integer, such as 8 or 12, etc.), and when the antenna and printed circuit board assembly (PCBA) area of ​​the terminal device are feasible, the more the number of RF transceiver links is, the more concentrated the directional beam formed by the RF transceiver links is, and the power consumption of the terminal device can be further saved. However, if the number of RF transceiver links is too large, due to the narrowing of the beam, the adjustment frequency of the phase difference of multiple groups of RF transceiver links will also increase under the same satellite motion trajectory (or based on the same satellite ephemeris information).

[0069] Figure 8 800 is a schematic flow chart of a satellite communication method according to an embodiment of the present application. The method 800 may be applied to a terminal device. The method 800 may include steps S810 to S850, which are as follows:

[0070] S810, the terminal device determines the current location information.

[0071] The terminal device can obtain its current location information through the GNSS module.

[0072] S820, the terminal device determines the target satellite.

[0073] The terminal device can determine the target satellite to be connected through the pre-downloaded satellite ephemeris information and its current ground position.

[0074] S830, the terminal device adjusts its own posture so that the current radiation direction is aligned with the target satellite.

[0075] The terminal device senses the current azimuth, elevation and other information of the terminal device through a transmitter (such as a compass, gravity sensor, gyroscope, etc.), and guides the user to adjust the posture of the terminal device through the UI interface so that the current radiation beam is aligned with the target satellite.

[0076] S840: The terminal device determines multiple sets of phase shift parameters.

[0077] Since the satellite is constantly moving, the terminal device can determine the motion trajectory of the target satellite based on the satellite ephemeris information and divide the motion trajectory of the target satellite into multiple segments. At this time, the phase shift parameters corresponding to each segment of the motion trajectory are determined so that the radiation direction corresponding to each set of phase shift parameters is aligned with a spatial position in each segment of the motion trajectory.

[0078] S850, the terminal device adjusts the phase difference between the multiple groups of links according to the phase shift parameter, so that the radiation direction formed by the multiple groups of links is aligned with the target satellite.

[0079] Optionally, the radiation direction formed by the multiple groups of links may refer to the maximum radiation direction of a directional beam (formed by the multiple groups of radio frequency transceiver links) of the terminal device.

[0080] During the communication process, as time goes by, the relative position of the target satellite to the ground will change. When the switching threshold is reached, the terminal device automatically switches to the next group phase shift parameter. After the parameter is updated, the radiation beam of the terminal device will continue to aim at the satellite in the new direction.

[0081] Optionally, the switching threshold may include a duration threshold (such as a first threshold) and / or a signal strength threshold (such as a second threshold).

[0082] For example, when the time length from the moment when the second radiation direction formed by the multiple groups of RF transceiver links is aligned with the second spatial position of the target satellite is greater than or equal to the first threshold, and / or the signal strength of the target satellite is less than or equal to the second threshold, the terminal device can adjust the phase difference between the multiple groups of links according to the phase shift parameter (corresponding to a section of the motion trajectory currently located by the target satellite) so that the radiation direction formed by the multiple groups of links is aligned with the specific spatial position of the target satellite (in the current section of the motion trajectory).

[0083] The above method can realize the tracking of the movement trajectory of the target satellite by the directional beam (formed by multiple groups of radio frequency transceiver links) of the terminal device.

[0084] By using the method in the embodiment of the present application, the radiation directions of multiple antennas of the terminal device can always point to the target satellite (tracking the movement of the satellite), and high-quality satellite communication effects can be maintained over a relatively long period of time. At the same time, since multiple antennas can focus the radiation energy of the terminal device, compared with the traditional single-antenna solution, the same communication quality can be maintained with lower energy consumption.

[0085] Combination of the above Figures 1 to 8 , describes the method embodiment of the present application in detail, and the following is combined with Fig. 9 and Fig.10 , describes the device embodiment of the present application in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0086] Fig. 9 is a schematic structural diagram of a satellite communication device provided by an embodiment of the present application. The device can be applied to a terminal device, and the terminal device can include multiple groups of radio frequency transceiver links. Fig. 9As shown, the device 900 includes an acquisition unit 910, a first determination unit 920 and an adjustment unit 930, which are specifically as follows:

[0087] An acquisition unit 910 is used to acquire current position information and current posture information of the terminal device;

[0088] A first determining unit 920 is used to determine a first spatial position of a target satellite corresponding to the current position information based on preset satellite ephemeris information and the current position information;

[0089] The adjustment unit 930 is used to adjust the phase difference between the multiple groups of RF transceiver links based on the current posture information and the first spatial position, so that the first radiation direction formed by the multiple groups of RF transceiver links is aligned with the first spatial position.

[0090] Optionally, the adjustment unit 930 is specifically used to: when a first preset condition is met, based on the current posture information and the first spatial position, adjust the phase difference between the multiple groups of RF transceiver links so that the first radiation direction is aligned with the first spatial position.

[0091] Optionally, the first preset condition includes: the duration from the moment when the second radiation direction formed by the multiple groups of RF transceiver links is aligned with the second spatial position of the target satellite is greater than or equal to a first threshold, and / or the signal strength of the target satellite is less than or equal to a second threshold.

[0092] Optionally, the apparatus further includes a second determination unit 940, configured to determine multiple sets of phase shift parameters of the terminal device, the multiple sets of phase shift parameters corresponding to multiple radiation directions formed by the multiple sets of RF transceiver links, the multiple radiation directions including the first radiation direction.

[0093] Optionally, the second determination unit 940 is specifically used to: determine the target motion trajectory of the target satellite according to the satellite ephemeris information; divide the target motion trajectory into multiple motion trajectories, and the multiple motion trajectories correspond to the multiple sets of phase shift parameters; determine the multiple sets of phase shift parameters according to the current posture information and the multiple motion trajectories, so that the radiation direction corresponding to each set of phase shift parameters in the multiple sets of phase shift parameters can be aligned with a specific spatial position in a motion trajectory in the multiple motion trajectories.

[0094] Optionally, the multiple groups of RF transceiver links correspond to multiple phase shifters, and the adjustment unit 930 is specifically used to: use the multiple phase shifters to adjust the phase difference between the multiple groups of RF transceiver links according to the phase shift parameter corresponding to the first radiation direction, so that the first radiation direction is aligned with the first spatial position.

[0095] Optionally, the number of radio frequency transceiver links in the terminal device is related to the power consumption of the terminal device and the adjustment frequency of the phase difference between the multiple groups of radio frequency transceiver links.

[0096] Fig.10 It is a schematic structural diagram of a device provided in one embodiment of the present application. Fig.10 The dotted line in the figure indicates that the unit or module is optional. The device 1000 can be used to implement the method described in the above method embodiment. The device 1000 can be a chip or a satellite communication device.

[0097] The device 1000 may include one or more processors 1010. The processor 1010 may support the device 1000 to implement the method described in the method embodiment above. The processor 1010 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0098] The apparatus 1000 may further include one or more memories 1020. The memory 1020 stores a program, which can be executed by the processor 1010, so that the processor 1010 executes the method described in the above method embodiment. The memory 1020 may be independent of the processor 1010 or integrated in the processor 1010.

[0099] The apparatus 1000 may further include a transceiver 1030. The processor 1010 may communicate with other devices or chips through the transceiver 1030. For example, the processor 1010 may transmit and receive data with other devices or chips through the transceiver 1030.

[0100] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to the satellite communication device provided in the present application, and the program enables a computer to execute the method performed by the satellite communication device in each embodiment of the present application.

[0101] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the satellite communication device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the satellite communication device in each embodiment of the present application.

[0102] The embodiment of the present application also provides a computer program. The computer program can be applied to the satellite communication device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the satellite communication device in each embodiment of the present application.

[0103] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0104] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0105] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0106] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0107] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0108] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0109] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0110] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A satellite communication method, characterized in that: The method is applied to a terminal device, the terminal device includes a plurality of phase-adjustable radio frequency transceiver links, and the method includes: Acquire current location information and current posture information of the terminal device; Based on preset satellite ephemeris information and the current position information, determining a first spatial position of a target satellite corresponding to the current position information; Based on the current posture information and the first spatial position, the phase differences between the multiple groups of radio frequency transceiver links are adjusted so that a first radiation direction formed by the multiple groups of radio frequency transceiver links is aligned with the first spatial position.

2. The method according to claim 1, characterized in that The adjusting, based on the current posture information and the first spatial position, the phase differences between the multiple groups of radio frequency transceiver links so that the first radiation directions formed by the multiple groups of radio frequency transceiver links are aligned with the first spatial position comprises: When a first preset condition is met, based on the current posture information and the first spatial position, the phase differences between the multiple groups of radio frequency transceiver links are adjusted so that the first radiation direction is aligned with the first spatial position.

3. The method according to claim 2, characterized in that The first preset condition includes: The duration from the moment when the second radiation direction formed by the multiple groups of RF transceiver links is aligned with the second spatial position of the target satellite is greater than or equal to the first threshold, and / or the signal strength of the target satellite is less than or equal to the second threshold.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: Determine multiple sets of phase shift parameters of the terminal device, where the multiple sets of phase shift parameters correspond to multiple radiation directions formed by the multiple sets of radio frequency transceiver links, and the multiple radiation directions include the first radiation direction.

5. The method according to claim 4, characterized in that The determining of the multiple sets of phase shift parameters of the terminal device comprises: Determine the target motion trajectory of the target satellite according to the satellite ephemeris information; Dividing the target motion trajectory into multiple motion trajectories, wherein the multiple motion trajectories correspond to the multiple sets of phase shift parameters; The multiple sets of phase shift parameters are determined according to the current posture information and the multiple motion trajectories, so that the radiation direction corresponding to each set of phase shift parameters in the multiple sets of phase shift parameters can be aligned with a specific spatial position in a motion trajectory in the multiple motion trajectories.

6. The method according to claim 5, characterized in that The multiple groups of radio frequency transceiver links correspond to multiple phase shifters, and adjusting the phase differences between the multiple groups of radio frequency transceiver links based on the current posture information and the first spatial position so that the first radiation direction formed by the multiple groups of radio frequency transceiver links is aligned with the first spatial position includes: The multiple phase shifters are used to adjust the phase differences between the multiple groups of RF transceiver links according to the phase shift parameter corresponding to the first radiation direction, so that the first radiation direction is aligned with the first spatial position.

7. The method according to any one of claims 1 to 6, characterized in that The number of radio frequency transceiver links in the terminal device is related to the power consumption of the terminal device and the adjustment frequency of the phase difference between the multiple groups of radio frequency transceiver links.

8. A satellite communication device, characterized in that: The device is applied to a terminal device, the terminal device includes a plurality of phase-adjustable radio frequency transceiver links, and the device includes: An acquisition unit, used to acquire current position information and current posture information of the terminal device; A first determining unit, configured to determine a first spatial position of a target satellite corresponding to the current position information based on preset satellite ephemeris information and the current position information; An adjustment unit is used to adjust the phase difference between the multiple groups of radio frequency transceiver links based on the current posture information and the first spatial position, so that a first radiation direction formed by the multiple groups of radio frequency transceiver links is aligned with the first spatial position.

9. A terminal device, characterized in that: include: A positioning module, used to obtain the current location information of the terminal device; A sensor module, used to obtain current posture information of the terminal device; A radio frequency transceiver module, including a plurality of phase-adjustable radio frequency transceiver links; The processor is electrically connected to the positioning module, the sensor module and the RF transceiver module, and is used to determine a first spatial position of the target satellite corresponding to the current position information based on preset satellite ephemeris information and the current position information, and adjust the phase difference between the multiple groups of RF transceiver links based on the current attitude information and the first spatial position, so that a first radiation direction formed by the multiple groups of RF transceiver links is aligned with the first spatial position.

10. A chip, characterized in that: The device comprises a processor, which is used to call a program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 7.

11. A computer-readable storage medium, characterized in that: A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 7.

12. A computer program product, characterized in that The method comprises a program for causing a computer to execute the method according to any one of claims 1 to 7.

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