CN117749244A

CN117749244A - Antenna switching method and device for satellite communication, terminal equipment and storage medium

Info

Publication number: CN117749244A
Application number: CN202311740812.5A
Authority: CN
Inventors: 翟少鹏; 赵重峰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2023-12-15
Filing date: 2023-12-15
Publication date: 2024-03-22

Abstract

The embodiment of the application discloses an antenna switching method, device, terminal equipment and storage medium for satellite communication, which are used for switching antennas under the condition that the signal intensity of the terminal equipment and the satellite communication is smaller than a satellite signal intensity threshold value, and then using the switched antennas to communicate with the satellite, so that the flexibility of the terminal equipment and the satellite communication is improved, the signal intensity of the satellite signal can be improved to a certain extent, and the communication quality of the terminal equipment and the satellite is ensured. The method of the embodiment of the application is applied to a radio frequency system, the radio frequency system comprises at least two antennas, and the method comprises the following steps: transmitting a first radio frequency signal to the satellite through the first antenna; receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna; and switching the first antenna to a second antenna for communicating with the satellite when the signal strength of the first satellite signal is less than a satellite signal strength threshold.

Description

Antenna switching method and device for satellite communication, terminal equipment and storage medium

Technical Field

The present invention relates to the field of communications, and in particular, to a method and apparatus for switching antennas in satellite communications, a terminal device, and a storage medium.

Background

Since the current scenario of satellite communication belongs to a single antenna alignment satellite, that is, the terminal device must keep a posture alignment satellite, the spatial freedom degree is low, which leads to communication failure if the angle of the terminal device aligned with the satellite deviates, that is, if the angle is outside the preset angle range, during the communication between the terminal device and the satellite.

Disclosure of Invention

The embodiment of the application provides an antenna switching method, device, terminal equipment and storage medium for satellite communication, which are used for switching an antenna under the condition that the signal intensity of the terminal equipment and the satellite communication is smaller than a satellite signal intensity threshold value, and then using the switched antenna and the satellite for communication, so that the flexibility of the terminal equipment and the satellite communication is improved, the signal intensity of the satellite signal can be improved to a certain extent, and the communication quality of the terminal equipment and the satellite is ensured.

A first aspect of the present application provides an antenna switching method for satellite communications, where the method is applied to a radio frequency system, and the radio frequency system includes at least two antennas, and the method may include:

Transmitting a first radio frequency signal to the satellite through the first antenna;

receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna;

switching the first antenna to a second antenna for communicating with the satellite if the signal strength of the first satellite signal is less than a satellite signal strength threshold;

wherein the at least two antennas include the first antenna and the second antenna.

A second aspect of the present application provides an antenna switching device for satellite communications, the device being applied to a radio frequency system, the radio frequency system including at least two antennas, the device comprising:

a transmitting module for transmitting a first radio frequency signal to a satellite through a first antenna;

a receiving module, configured to receive, through the first antenna, a first satellite signal transmitted by the satellite according to the first radio frequency signal;

a processing module, configured to switch the first antenna to a second antenna, where the second antenna is used for communicating with the satellite, where the signal strength of the first satellite signal is less than a satellite signal strength threshold;

A third aspect of the present application provides a radio frequency system which may comprise an antenna switching arrangement for satellite communications as described in the second aspect of the present application.

A fourth aspect of the present application provides a terminal device, which may include:

a memory storing executable program code;

a processor coupled to the memory;

the processor is configured to correspondingly perform the method according to the first aspect of the present application.

Yet another aspect of an embodiment of the present application provides a computer-readable storage medium comprising instructions which, when run on a processor, cause the processor to perform the method described in the first aspect of the present application.

A further aspect of the embodiments of the present application discloses a computer program product which, when run on a computer, causes the computer to perform the method of the first aspect of the present application.

A further aspect of the embodiments of the present application discloses an application publishing platform for publishing a computer program product, wherein the computer program product, when run on a computer, causes the computer to perform the method according to the first aspect of the present application.

From the above technical solutions, the embodiments of the present application have the following advantages:

In an embodiment of the present application, an antenna switching method for satellite communications is applied to a radio frequency system, where the radio frequency system includes at least two antennas, and the method includes: transmitting a first radio frequency signal to the satellite through the first antenna; receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna; switching the first antenna to a second antenna for communicating with the satellite if the signal strength of the first satellite signal is less than a satellite signal strength threshold; wherein the at least two antennas include the first antenna and the second antenna. Under the condition that the signal intensity of the terminal equipment and the satellite communication is smaller than the satellite signal intensity threshold value, the antenna can be switched, and the antenna and the satellite after switching are used for communication, so that the flexibility of the terminal equipment and the satellite communication is improved, the signal intensity of the satellite signal can be improved to a certain extent, and the communication quality of the terminal equipment and the satellite is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments and the description of the prior art, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings.

FIG. 1A is a schematic diagram of a prior art RF front-end architecture for satellite communications;

FIG. 1B is a schematic diagram of a prior art satellite antenna distribution;

fig. 2 is a schematic diagram of an embodiment of an antenna switching method for satellite communications according to an embodiment of the present application;

FIG. 3A is a schematic diagram of one embodiment of a radio frequency system in an embodiment of the present application;

FIG. 3B is a schematic diagram of another embodiment of a radio frequency system according to an embodiment of the present application;

FIG. 3C is a schematic diagram of another embodiment of a radio frequency system according to an embodiment of the present application;

fig. 4A is a schematic diagram of a terminal device including two antennas for communication with a satellite according to an embodiment of the present application;

fig. 4B is a schematic diagram of a terminal device including two antennas for communication with a satellite according to an embodiment of the present application;

fig. 4C is a schematic diagram of a terminal device including two antennas for communication with a satellite according to an embodiment of the present application;

fig. 4D is a schematic diagram of a terminal device including two antennas for communication with a satellite according to an embodiment of the present application;

fig. 4E is a schematic diagram of a terminal device including three antennas for communication with a satellite according to an embodiment of the present application;

fig. 4F is a schematic diagram of a terminal device including three antennas for communication with a satellite according to an embodiment of the present application;

fig. 4G is a schematic diagram of a terminal device including three antennas for communication with a satellite according to an embodiment of the present application;

Fig. 4H is a schematic diagram of a terminal device including four antennas for communication with a satellite according to an embodiment of the present application;

fig. 5 is a schematic diagram of another embodiment of an antenna switching method for satellite communications according to an embodiment of the present application;

fig. 6 is a schematic diagram of an embodiment of an antenna switching device for satellite communications according to an embodiment of the present application;

FIG. 7 is a schematic diagram of one embodiment of a radio frequency system in an embodiment of the present application;

fig. 8 is a schematic diagram of an embodiment of a terminal device in an embodiment of the present application;

fig. 9 is a schematic diagram of another embodiment of a terminal device in an embodiment of the present application.

Detailed Description

In order for those skilled in the art to better understand the present application, the following description will describe embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. Based on the examples in this application, all shall fall within the scope of protection of this application.

Baseband chip: the baseband chip is responsible for processing the digital signal, i.e. the low frequency part of the signal. The system mainly comprises a digital signal processor (Digital Signal Process, DSP), a modem, a coder-decoder and other functional modules. The baseband chip is responsible for the tasks of digital signal processing, modulation and demodulation, channel coding and decoding and the like, and converts the digital signal into a radio frequency signal or demodulates the digital signal from the radio frequency signal. Baseband chips are commonly used for processing low frequency signals such as data, voice, image, etc., such as mobile communications, wireless local area network (Wireless Local Area Network, WLAN), bluetooth, etc., applications.

Radio frequency chip: the radio frequency chip is responsible for processing radio frequency signals, i.e. the high frequency part of the signal. The device mainly comprises functional modules such as a radio frequency amplifier, a mixer, a filter, a frequency synthesizer and the like. The radio frequency chip is responsible for generating, amplifying, modulating and demodulating a radio frequency signal, converting a digital signal into a high frequency radio frequency signal or demodulating the digital signal from the high frequency radio frequency signal. Radio frequency chips are commonly used in radio frequency front ends in radio communication systems, such as cell phones, radios, radar, and the like.

Radio frequency means a high frequency signal, i.e. a radio signal carrying information. The baseband is a low frequency signal that contains information about almost the entire radio communication signal. In popular terms, radio frequency corresponds to a microphone and baseband corresponds to the sound emitted. A radio frequency chip is a chip that is specifically responsible for processing high frequency signals. In a wireless communication system, an original electrical signal (baseband signal) is first processed by a Digital Signal Processor (DSP), then converted to an analog signal by a digital-to-analog converter (DAC), and then enters a radio frequency chip. The radio frequency chip comprises circuits such as an amplifier, a modulator, a demodulator and the like, and is responsible for converting a baseband signal into a high-frequency signal and receiving and processing the radio frequency signal received from the antenna. The baseband chip is a chip for processing low frequency signals. They are embedded in various devices such as cell phones, computers, meters, etc. The chip usually comprises a central processing unit (Central Processing Unit, CPU), a random access Memory (Random Access Memory, RAM) and a Read-Only Memory (ROM), and is responsible for digitizing, decompressing, encoding and decoding signals, and then transmitting the digital signal results to a communication interface.

The Balun (abbreviated as "balanced to unbalanced"), known as Balun, is a common circuit element that functions primarily to convert a single-ended signal into a differential signal. The balance transformer has different implementation modes in different circuit applications, and most commonly, the balance transformer is made by grounding one end of a primary side. In antenna engineering, it is common to use a section of quarter-wavelength coaxial cable as a balun.

A Primary Reception (PRX) antenna is responsible for the transmission and reception of radio frequency signals.

Diversity reception (diversity receive, DRX) antennas are only responsible for receiving signals without transmitting, and the signals are combined to obtain diversity gain. The diversity reception is mainly to counteract the influence of fast fading on the received signal, and because the signal generates multipath component signals due to interference such as reflection in the transmission process, the receiving end receives signals of different paths simultaneously by utilizing multiple antennas, and then selects and combines the signals into a total signal so as to alleviate the influence of signal fading, which is called diversity reception. Diversity is to combine the scattered signals together, and the maximum signal gain can be obtained after proper combination as long as the signals are mutually independent.

With the increasing demand for satellite communication, satellite communication is becoming a necessary function of mainstream terminal equipment (e.g., mobile phones). The current architecture scheme of the radio frequency front end of satellite communication is that a satellite baseband chip (BB), a satellite radio frequency integrated circuit (Radio Frequency Integrated Circuit, RFIC) is connected to a Balun (Balanced to unbalanced, balun) device through differential wires of tx_n (Negative)/tx_p (Positive) and rx_n/rx_p, and the rf front end is converted into independent Transmit (TX) and Receive (RX) wires through a TX surface acoustic wave filter (surface acoustic wave, SAW) and an RX SAW, a Power Amplifier (Power Amplifier, PA) and a low noise Amplifier (Low Noise Amplifier, LNA), respectively, and finally through a switching device to a medium High frequency (Midle High Band, MHB) single Antenna (ANT). Fig. 1A is a schematic diagram of a radio frequency front end architecture for satellite communication in the prior art.

Because the current scene of satellite communication belongs to a single antenna aiming at a satellite, the single antenna is generally arranged at the top of terminal equipment, other module devices are integrated at the top of the single antenna, the space is crowded, the electromagnetic environment is complex, the interference caused by noise of other module devices is easy to influence the satellite communication signal quality, and the experience is poor. Fig. 1B is a schematic diagram of a satellite antenna distribution in the prior art.

In the embodiment of the present application, the terminal device may be a Mobile Phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented Reality (Augmented Reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned driving (self driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), and the like.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

In the following, by way of example, the technical solution of the present application is further described, as shown in fig. 2, which is a schematic diagram of an embodiment of an antenna switching method for satellite communications in the embodiment of the present application, where the method is applied to a radio frequency system, and the radio frequency system includes at least two antennas, and the method embodiment may include:

201. a first radio frequency signal is transmitted to the satellite through the first antenna.

Optionally, the radio frequency system further includes: the first switch is connected with the at least two antennas and is used for switching the antennas of the radio frequency system to a transmitting state or a receiving state;

the transmitting a first radio frequency signal to a satellite through the first antenna may include: and switching the first antenna to a transmitting state by using the first switch, and transmitting a first radio frequency signal to a satellite through the first antenna.

For example, in the case where the radio frequency system intends to transmit signals, the antenna may be switched to a transmission state by the first switch, and then the first radio frequency signal is transmitted to the satellite using the antenna.

Alternatively, the first switch may be a single pole double throw switch (Single Pole Double Throw, SPDT).

Alternatively, the first antenna may be any one of a main set of receiving antennas, a main set of multiple input multiple output receiving antennas, a diversity receiving antenna, and a diversity multiple input multiple output receiving antenna.

Alternatively, the primary set of receive antennas may include, but are not limited to: a high-frequency main set receiving antenna, a middle-high-frequency main set receiving antenna, a low-frequency main set receiving antenna and a middle-low-frequency main set receiving antenna;

the main set multiple-input multiple-output receive antennas may include, but are not limited to: high frequency main set multiple input multiple output receiving antenna, middle and high frequency main set multiple input multiple output receiving antenna, low frequency main set multiple input multiple output receiving antenna, middle and low frequency main set multiple input multiple output receiving antenna.

The diversity receive antennas may include, but are not limited to: a high frequency diversity receiving antenna, a medium and high frequency diversity receiving antenna, a low frequency diversity receiving antenna, and a medium and low frequency diversity receiving antenna;

the diversity multiple-input multiple-output receive antenna may include, but is not limited to: high frequency diversity multiple input multiple output receiving antenna, medium and high frequency diversity multiple input multiple output receiving antenna, low frequency diversity multiple input multiple output receiving antenna, medium and low frequency diversity multiple input multiple output receiving antenna.

Optionally, the radio frequency system may further include: the system comprises a satellite baseband chip, a satellite radio frequency chip, a first weighing apparatus, a transmitting filter, a power amplifier, a second weighing apparatus, a receiving filter and a noise amplifier; the satellite baseband chip, the satellite radio frequency chip, the first weighing apparatus, the transmitting filter, the power amplifier and the first switch are sequentially connected; the satellite radio frequency chip, the second weighing apparatus, the receiving filter, the noise amplifier and the first switch are sequentially connected;

the transmitting a first radio frequency signal to a satellite through the first antenna may include: and generating a first baseband signal through the satellite baseband chip, processing the first baseband signal through the satellite radio frequency chip, the first balance changer, the transmission filter and the power amplifier to obtain a first radio frequency signal, switching the first antenna to a transmission state by using the first switch, and transmitting the first radio frequency signal to the satellite through the first antenna.

Optionally, the first and second balancers are integrated in the satellite radio frequency chip. Space costs of the printed circuit board (Printed Circuit Board, PCB) can be saved.

Alternatively, the first and second balancers may be replaced by a capacitor or an inductor.

Alternatively, the types of the transmission filter and the reception filter may include, but are not limited to: low-pass Filters (Low-pass Filters), high-pass Filters (High-pass Filters), band-pass Filters (Band-pass Filters), band-stop Filters (Band-stop Filters), notch Filters (Notch Filters), passive Filters (Passive Filters), active Filters (Active Filters), digital Filters (Digital Filters).

Alternatively, the types of noise amplifiers may include, but are not limited to, low noise amplifiers, medium noise amplifiers, and high noise amplifiers.

Illustratively, both the transmit filter and the receive filter may be surface acoustic wave filters (Surface acoustic wave). The noise amplifier may be a low noise amplifier (Low noise amplifier, LNA).

Optionally, the frequency band supported by the first antenna coincides with the frequency band supported by the satellite.

202. And receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna.

Optionally, the receiving, by the first antenna, the first satellite signal transmitted by the satellite according to the first radio frequency signal may include: and switching the first antenna to a receiving state by using the first switch, and receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna.

Optionally, the receiving, by the first antenna, the first satellite signal transmitted by the satellite according to the first radio frequency signal may include: switching the first antenna to a receiving state by using the first switch, and receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna; and the first satellite signal is processed by the noise amplifier, the receiving filter, the second weighing apparatus and the satellite radio frequency chip and then is sent to the satellite baseband chip. The satellite baseband chip may obtain a signal strength of the first satellite signal.

Optionally, the radio frequency system may further include: the noise amplifier is connected with the first filter, and the first filter is connected with the first switch;

the receiving, by the first antenna, the first satellite signal transmitted by the satellite according to the first radio frequency signal may include: switching the first antenna to a receiving state by using the first switch, and receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna; and the first satellite signal is processed by a first filter, the noise amplifier, the receiving filter, the second weighing apparatus and the satellite radio frequency chip and then is sent to the satellite baseband chip.

In this embodiment, for example, if the user wears the bluetooth headset, the first filter may filter out the bluetooth signal, so as to reduce interference of the bluetooth signal on the first satellite signal.

203. And switching the first antenna to a second antenna for communicating with the satellite when the signal strength of the first satellite signal is less than a satellite signal strength threshold.

Optionally, the radio frequency system may further include: the first switch is connected with the at least two antennas through the second switch, and the second switch is used for switching the antennas of the radio frequency system and satellite communication;

the switching the first antenna to the second antenna when the signal strength of the first satellite signal is less than the satellite signal strength threshold may include: the first antenna is switched to a second antenna using the second switch if the signal strength of the first satellite signal is less than a satellite signal strength threshold.

Optionally, the method may further include: and outputting the signal strength of the first satellite signal under the condition that the signal strength of the first satellite signal is smaller than a satellite signal strength threshold value.

Optionally, outputting the signal strength of the first satellite signal when the signal strength of the first satellite signal is less than the satellite signal strength threshold may include: and displaying the signal intensity of the first satellite signal on a display interface under the condition that the signal intensity of the first satellite signal is smaller than a satellite signal intensity threshold value, and/or playing the signal intensity of the first satellite signal through a loudspeaker.

Optionally, the method may further include: and outputting first prompt information, wherein the first prompt information is used for prompting a user to rotate the terminal equipment so as to receive satellite signals.

Optionally, outputting the first prompt information may include: and displaying the first prompt information on a display interface, and/or playing the first prompt information through a loudspeaker.

Optionally, the frequency band supported by the second antenna coincides with the frequency band supported by the satellite.

Fig. 3A is a schematic diagram of an embodiment of a radio frequency system according to an embodiment of the present application. In the illustration of fig. 3A, the radio frequency system may include a satellite baseband chip, a satellite radio frequency chip, a first balun, a transmit filter, a power amplifier, a second balun, a receive filter, a noise amplifier, a first switch and a second switch, and four antennas; the satellite baseband chip, the satellite radio frequency chip, the first weighing apparatus, the transmitting filter, the power amplifier and the first switch are sequentially connected; the satellite radio frequency chip, the second weighing apparatus, the receiving filter, the noise amplifier and the first switch are sequentially connected; the first switch is connected with the second switch, and the second switch is connected with the four antennas.

Fig. 3B is a schematic diagram of another embodiment of a radio frequency system according to an embodiment of the present application. In the illustration of fig. 3B, the radio frequency system may include a satellite baseband chip, a satellite radio frequency chip, a first balun, a transmit filter, a power amplifier, a second balun, a receive filter, a noise amplifier, a first filter, a first switch, and a second switch, and four antennas; the satellite baseband chip, the satellite radio frequency chip, the first weighing apparatus, the transmitting filter, the power amplifier and the first switch are sequentially connected; the satellite radio frequency chip, the second weighing apparatus, the receiving filter, the noise amplifier, the first filter and the first switch are sequentially connected; the first switch is connected with the second switch, and the second switch is connected with the four antennas.

Fig. 3C is a schematic diagram of another embodiment of a radio frequency system according to an embodiment of the present application. In the illustration of fig. 3C, the radio frequency system may include a satellite baseband chip, a satellite radio frequency chip, a first balun, a transmit filter, a power amplifier, a second filter, a second balun, a receive filter, a noise amplifier, a first filter, a first switch, and a second switch, and four antennas; the satellite baseband chip, the satellite radio frequency chip, the first weighing apparatus, the transmitting filter, the power amplifier, the second filter and the first switch are sequentially connected; the satellite radio frequency chip, the second weighing apparatus, the receiving filter, the noise amplifier, the first filter and the first switch are sequentially connected; the first switch is connected with the second switch, and the second switch is connected with the four antennas.

In the illustrations of fig. 3A-3C, the noise amplifier is illustrated as a low noise amplifier, the first switch is illustrated as a single pole double throw switch, and the second switch is illustrated as a single pole four throw switch (i.e., the rf system includes four antennas).

Alternatively, if the antenna in the terminal device for communicating with the satellite includes a first antenna and a second antenna, the second switch may be a single pole double throw switch. Exemplary, as shown in fig. 4A, 4B, 4C, and 4D, schematic diagrams of a terminal device including two antennas for satellite communication in an embodiment of the present application are shown.

Optionally, the first antenna and the second antenna are located on different sides of the terminal device.

Optionally, the first antenna and the second antenna are located on the same side of the terminal device.

Optionally, the method may further include: and when the signal intensity of the first satellite signal is larger than or equal to the satellite signal intensity threshold value, using the first antenna to communicate with the satellite.

Optionally, the method may further include: and outputting second prompt information, wherein the second prompt information is used for prompting a user that the signal strength of satellite signals is good, and the current angle of the terminal equipment is kept as much as possible for communication with satellites.

As shown in fig. 5, another embodiment of an antenna switching method for satellite communications in an embodiment of the present application is shown, where the method is applied to a radio frequency system, where the radio frequency system includes at least two antennas, and the method embodiment may include:

501. A first radio frequency signal is transmitted to the satellite through the first antenna.

502. And receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna.

503. And switching the first antenna to a second antenna for communicating with the satellite when the signal strength of the first satellite signal is less than a satellite signal strength threshold.

It should be noted that, steps 501-503 are similar to steps 101-103 in the embodiment shown in fig. 2, and will not be repeated here.

504. A second radio frequency signal is transmitted to the satellite through the second antenna.

Optionally, the transmitting, by the second antenna, the second radio frequency signal to the satellite may include: and switching the second antenna to a transmitting state by using the first switch, and transmitting a second radio frequency signal to a satellite through the second antenna.

Alternatively, the second antenna may be any antenna other than the first antenna among the main set of receiving antennas, the main set of multiple input multiple output receiving antennas, the diversity receiving antennas, and the diversity multiple input multiple output receiving antennas. I.e. if the first antenna is the main set of receive antennas, the second antenna may be any of the main set of multiple input multiple output receive antennas, the diversity multiple input multiple output receive antennas. If the first antenna is a main set multiple-input multiple-output receiving antenna, the second antenna may be any one of a main set receiving antenna, a diversity multiple-input multiple-output receiving antenna. If the first antenna is a diversity receive antenna, the second antenna may be any of a main set receive antenna, a main set multiple input multiple output receive antenna, a diversity multiple input multiple output receive antenna. If the first antenna is a diversity multiple-input multiple-output receiving antenna, the second antenna may be any one of a main set receiving antenna, a main set multiple-input multiple-output receiving antenna, and a diversity receiving antenna.

Optionally, the transmitting, by the second antenna, the second radio frequency signal to the satellite may include: and generating a second baseband signal through the satellite baseband chip, processing the second baseband signal through the satellite radio frequency chip, the first weighing apparatus, the transmission filter and the power amplifier to obtain a second radio frequency signal, switching the second antenna to a transmission state by using the first switch, and transmitting the second radio frequency signal to the satellite through the second antenna.

505. And receiving a second satellite signal transmitted by the satellite according to the second radio frequency signal through the second antenna.

Optionally, the receiving, by the second antenna, the second satellite signal transmitted by the satellite according to the second radio frequency signal may include: and switching the second antenna to a receiving state by using the first switch, and receiving a second satellite signal transmitted by the satellite according to the second radio frequency signal through the second antenna.

Optionally, the receiving, by the second antenna, the second satellite signal transmitted by the satellite according to the second radio frequency signal may include: switching the second antenna to a receiving state by using the first switch, and receiving a second satellite signal transmitted by the satellite according to the second radio frequency signal through the second antenna; and the second satellite signal is processed by the noise amplifier, the receiving filter, the second weighing apparatus and the satellite radio frequency chip and then is sent to the satellite baseband chip. The satellite baseband chip may obtain the signal strength of the second satellite signal.

Optionally, the receiving, by the second antenna, the second satellite signal transmitted by the satellite according to the second radio frequency signal may include: switching the second antenna to a receiving state by using the first switch, and receiving a second satellite signal transmitted by the satellite according to the second radio frequency signal through the second antenna; and the second satellite signal is processed by the first filter, the noise amplifier, the receiving filter, the second weighing apparatus and the satellite radio frequency chip and then is sent to the satellite baseband chip.

In this embodiment, for example, if the user wears the bluetooth headset, the first filter may filter out the bluetooth signal, so as to reduce interference of the bluetooth signal on the second satellite signal.

506. And switching the second antenna to a third antenna for communicating with the satellite when the signal strength of the second satellite signal is less than the satellite signal strength threshold.

Optionally, the switching the second antenna to the third antenna when the signal strength of the second satellite signal is less than the satellite signal strength threshold may include: the second antenna is switched to a third antenna using the second switch if the signal strength of the second satellite signal is less than the satellite signal strength threshold.

Alternatively, if the antenna for communicating with the satellite in the terminal device includes a first antenna, and a second antenna and a third antenna, the second switch may be a single pole, triple throw switch. Exemplary, as shown in fig. 4E, fig. 4F, and fig. 4G, a schematic diagram of a terminal device in an embodiment of the present application includes three antennas for satellite communication.

Optionally, the first antenna, the second antenna and the third antenna are located on different sides of the terminal device.

Optionally, at least two antennas of the first antenna, the second antenna and the third antenna are located on the same side of the terminal device.

Optionally, the method may further include: and when the signal intensity of the second satellite signal is larger than or equal to the satellite signal intensity threshold value, using the second antenna to communicate with the satellite.

Optionally, the frequency band supported by the third antenna coincides with the frequency band supported by the satellite.

507. Transmitting a third radio frequency signal to the satellite through the third antenna.

Optionally, the transmitting, by the third antenna, a third radio frequency signal to a satellite may include: and switching the third antenna to a transmitting state by using the first switch, and transmitting a third radio frequency signal to a satellite through the third antenna.

Alternatively, the third antenna may be any one of a main set of receiving antennas, a main set of multiple input multiple output receiving antennas, a diversity receiving antenna, and a diversity multiple input multiple output receiving antenna except the first antenna and the second antenna. That is, if one of the first antenna and the second antenna is a main set receiving antenna and the other is a main set multiple input multiple output receiving antenna, the third antenna may be any one of a diversity receiving antenna and a diversity multiple input multiple output receiving antenna. If one of the first antenna and the second antenna is a main set receiving antenna and the other is a diversity receiving antenna, the third antenna may be any one of the main set multiple input multiple output receiving antenna and the diversity multiple input multiple output receiving antenna. If one of the first antenna and the second antenna is a main set of receiving antennas and the other is a diversity multiple-input multiple-output receiving antenna, the third antenna may be any one of the main set of multiple-input multiple-output receiving antennas and the diversity receiving antenna. If one of the first antenna and the second antenna is a diversity receiving antenna and the other is a diversity multiple-input multiple-output receiving antenna, the third antenna may be any one of a main set receiving antenna and a main set multiple-input multiple-output receiving antenna.

Optionally, the transmitting, by the third antenna, a third radio frequency signal to the satellite may include: and generating a third baseband signal through the satellite baseband chip, processing the third baseband signal through the satellite radio frequency chip, the first weighing apparatus, the transmission filter and the power amplifier to obtain a third radio frequency signal, switching the third antenna to a transmission state by using the first switch, and transmitting the third radio frequency signal to the satellite through the third antenna.

508. And receiving a third satellite signal transmitted by the satellite according to the third radio frequency signal through the third antenna.

Optionally, the receiving, by the third antenna, the third satellite signal transmitted by the satellite according to the third radio frequency signal may include: and switching the third antenna to a receiving state by using the first switch, and receiving a third satellite signal transmitted by the satellite according to the third radio frequency signal through the third antenna.

Optionally, the receiving, by the third antenna, the third satellite signal transmitted by the satellite according to the third radio frequency signal may include: switching the third antenna to a receiving state by using the first switch, and receiving a third satellite signal transmitted by the satellite according to the third radio frequency signal through the third antenna; and the third satellite signal is processed by the noise amplifier, the receiving filter, the second weighing apparatus and the satellite radio frequency chip and then is sent to the satellite baseband chip. The satellite baseband chip may obtain a signal strength of the third satellite signal.

Optionally, the receiving, by the third antenna, the third satellite signal transmitted by the satellite according to the third radio frequency signal may include: switching the third antenna to a receiving state by using the first switch, and receiving a third satellite signal transmitted by the satellite according to the third radio frequency signal through the third antenna; and processing the third satellite signal through a first filter, the noise amplifier, the receiving filter, the second weighing apparatus and the satellite radio frequency chip, and then transmitting the processed third satellite signal to the satellite baseband chip.

In this embodiment, for example, if the user wears the bluetooth headset, the first filter may filter out the bluetooth signal, so as to reduce interference of the bluetooth signal on the third satellite signal.

509. And switching the third antenna to a fourth antenna for communicating with the satellite when the signal strength of the third satellite signal is less than the satellite signal strength threshold.

Optionally, when the signal strength of the third satellite signal is less than the satellite signal strength threshold, switching the third antenna to the fourth antenna may include: and switching the third antenna to a fourth antenna by using the second switch when the signal strength of the third satellite signal is less than the satellite signal strength threshold.

Alternatively, if the antenna for communicating with the satellite in the terminal device includes a first antenna, and a second antenna, a third antenna, and a fourth antenna, the second switch may be a single pole, four throw switch. Exemplary, as shown in fig. 4H, a schematic diagram of a terminal device in an embodiment of the present application includes four antennas for satellite communications. In fig. 4A to 4H, a terminal device is taken as an example of a mobile phone.

Optionally, the first antenna, the second antenna, the third antenna and the fourth antenna are located on different sides of the terminal device.

Optionally, at least two antennas of the first antenna, the second antenna, the third antenna and the fourth antenna are located on the same side of the terminal device.

Optionally, the method may further include: and when the signal intensity of the third satellite signal is greater than or equal to the satellite signal intensity threshold value, using the third antenna to communicate with the satellite.

Optionally, the frequency band supported by the fourth antenna coincides with the frequency band supported by the satellite.

510. Transmitting a fourth radio frequency signal to the satellite through the fourth antenna.

Optionally, the transmitting, by the fourth antenna, a fourth radio frequency signal to a satellite may include: and switching the fourth antenna to a transmitting state by using the first switch, and transmitting a fourth radio frequency signal to a satellite through the fourth antenna.

Optionally, the fourth antenna may be an antenna other than the first antenna, the second antenna, and the third antenna of the main set of receiving antennas, the main set of multiple input multiple output receiving antennas, the diversity receiving antennas, and the diversity multiple input multiple output receiving antennas.

I.e. if one of the first, second and third antennas is a main set of receive antennas, the other is a main set of multiple input multiple output receive antennas, and the other is a diversity receive antenna, then the fourth antenna is a diversity multiple input multiple output receive antenna. If one of the first antenna, the second antenna and the third antenna is a main set of receiving antennas, the other is a main set of multiple input multiple output receiving antennas, and the other is a diversity multiple input multiple output receiving antenna, then the fourth antenna is a diversity receiving antenna. If one of the first antenna, the second antenna and the third antenna is a main set of receiving antennas, the other is a diversity receiving antenna, and the other is a diversity multiple-input multiple-output receiving antenna, then the fourth antenna is a main set of multiple-input multiple-output receiving antennas. If one of the first antenna, the second antenna and the third antenna is a main set multiple-input multiple-output receiving antenna, the other is a diversity receiving antenna, and the other is a diversity multiple-input multiple-output receiving antenna, then the fourth antenna is the main set receiving antenna.

Optionally, the transmitting, by the fourth antenna, a fourth radio frequency signal to the satellite may include: and generating a fourth baseband signal through the satellite baseband chip, processing the fourth baseband signal through the satellite radio frequency chip, the first weighing apparatus, the transmission filter and the power amplifier to obtain a fourth radio frequency signal, switching the fourth antenna to a transmission state by using the first switch, and transmitting the fourth radio frequency signal to the satellite through the fourth antenna.

511. And receiving a fourth satellite signal transmitted by the satellite according to the fourth radio frequency signal through the fourth antenna.

Optionally, the receiving, by the fourth antenna, a fourth satellite signal transmitted by the satellite according to the fourth radio frequency signal may include: and switching the fourth antenna to a receiving state by using the first switch, and receiving a fourth satellite signal transmitted by the satellite according to the fourth radio frequency signal through the fourth antenna.

Optionally, the receiving, by the fourth antenna, a fourth satellite signal transmitted by the satellite according to the fourth radio frequency signal may include: switching the fourth antenna to a receiving state by using the first switch, and receiving a fourth satellite signal transmitted by the satellite according to the fourth radio frequency signal through the fourth antenna; and the fourth satellite signal is processed by the noise amplifier, the receiving filter, the second weighing apparatus and the satellite radio frequency chip and then is sent to the satellite baseband chip. The satellite baseband chip may obtain the signal strength of the fourth satellite signal.

Optionally, the receiving, by the fourth antenna, a fourth satellite signal transmitted by the satellite according to the fourth radio frequency signal may include: switching the fourth antenna to a receiving state by using the first switch, and receiving a fourth satellite signal transmitted by the satellite according to the fourth radio frequency signal through the fourth antenna; and processing the fourth satellite signal through a first filter, the noise amplifier, the receiving filter, the second weighing apparatus and the satellite radio frequency chip, and then transmitting the processed fourth satellite signal to the satellite baseband chip.

In this embodiment, for example, if the user wears the bluetooth headset, the first filter may filter out the bluetooth signal, so as to reduce interference of the bluetooth signal on the fourth satellite signal.

512. And when the signal intensity of the fourth satellite signal is greater than or equal to the satellite signal intensity threshold value, using the fourth antenna to communicate with the satellite.

Optionally, the method may further include: and switching the fourth antenna to a target antenna, wherein the target antenna is the first antenna, the second antenna or the second antenna, under the condition that the signal strength of the fourth satellite signal is smaller than the satellite signal strength threshold value.

Optionally, the first antenna, the second antenna, the third antenna and the fourth antenna are different from each other;

the first antenna, the second antenna, the third antenna or the fourth antenna is any one antenna of a main set of receiving antennas, a main set of multiple input multiple output receiving antennas, a diversity receiving antenna and a diversity multiple input multiple output receiving antenna.

Optionally, the first antenna, the second antenna, the third antenna and the fourth antenna are respectively located at different sides of the terminal device.

Illustratively, the frequency band adopted by satellite communication is n256 frequency bands, and the frequency is 1980MHz-2200Mhz, which are coincident with the existing MHB frequency band of the mobile phone. According to the technical scheme, an existing MHB (mobile phone) access is utilized, an SP4T switch is added behind a single-pole double-throw (Single Pole Double Throw, SPDT) switch, the SP4T switch outputs RF1, RF2, RF3 and RF4, the signals are respectively communicated to MHB PRX, MHB PRX MIMO (multiple-in multiple-out), MHB DRX and MHB DRX MIMO access, according to the rotation state of the mobile phone in space, the Signal intensity (such as Signal-to-Noise Ratio (SNR)) of satellite signals detected in the mobile phone is switched by using the SP4T switch, different antennas can be respectively switched, and under the existing antenna scheme of the mobile phone, the number of antennas does not need to be increased by adding the SP4T in a radio frequency system, and the degree of freedom of mobile phone and satellite communication can be improved by the MHB ANT before multiplexing.

Because satellite communications are typically used in situations where cellular communications are not operational, there is no conflict in the communications scheme by utilizing MHB PRX, MHB DRX, MHB PRX MIMO, and MHB DRX MIMO antennas already present in current handsets. The mobile phone algorithm can identify the strength of satellite signals according to the RF1, RF2, RF3 and RF4 antennas so as to determine whether to switch, so that the degree of freedom of the mobile phone can be greatly increased, the top of the mobile phone is not required to be aligned with the satellite all the time, the two sides or the bottom of the mobile phone can be aligned with the satellite, the mobile phone can freely rotate in the process of communicating with the satellite, the angle of the mobile phone and the satellite communication is increased, the signal strength of the satellite signals can be improved to a certain extent, and the user experience can be improved.

Compared with the prior art, the technical scheme of the application aims at the current satellite communication single antenna scheme, and the SP2T switch, the SP3T switch or the SP4T switch are added in the satellite radio frequency system to multiplex the existing MHB channel, so that the effect of increasing the freedom degree of terminal equipment and satellite communication is achieved. The angle of the terminal equipment connected with the satellite can be increased under the condition that the antenna is not increased, the degree of freedom of the user for satellite communication by using the terminal equipment is increased, the signal intensity of the terminal equipment for satellite communication is improved, and the debugging workload of engineers is not increased. And when one antenna is interfered by noise of other modules in the terminal equipment in the satellite communication process, the terminal equipment can be rotated to switch to other antennas, so that the user experience is improved.

In an embodiment of the present application, an antenna switching method for satellite communications is applied to a radio frequency system, where the radio frequency system includes at least two antennas, and the method includes: transmitting a first radio frequency signal to a satellite through the first antenna; receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna; and switching the first antenna to a second antenna for communicating with the satellite when the signal strength of the first satellite signal is less than a satellite signal strength threshold, wherein the at least two antennas comprise a first antenna, a second antenna, a third antenna and a fourth antenna. Under the condition that the signal intensity of the terminal equipment and the satellite communication is smaller than the satellite signal intensity threshold value, the antenna can be switched, and the antenna and the satellite after switching are used for communication, so that the flexibility of the terminal equipment and the satellite communication is improved, the signal intensity of the satellite signal can be improved to a certain extent, and the communication quality of the terminal equipment and the satellite is ensured.

As shown in fig. 6, an embodiment of an antenna switching device for satellite communications in an embodiment of the present application is shown, where the device is applied to a radio frequency system, where the radio frequency system includes at least two antennas, and the device includes:

A transmitting module 601 for transmitting a first radio frequency signal to a satellite through a first antenna;

a receiving module 602, configured to receive, via the first antenna, a first satellite signal transmitted by the satellite according to the first radio frequency signal;

a processing module 603, configured to switch the first antenna to a second antenna, where the second antenna is used for communicating with the satellite, in a case where the signal strength of the first satellite signal is less than a satellite signal strength threshold;

Optionally, the processing module 603 is further configured to output a prompt message, where the prompt message is used to prompt the rotating terminal device to receive the satellite signal.

Optionally, the processing module 603 is further configured to communicate with the satellite through the first antenna when the signal strength of the first satellite signal is greater than or equal to the satellite signal strength threshold.

Optionally, the first antenna and the second antenna are different;

the first antenna or the second antenna is any one antenna of a main set of receiving antennas, a main set of multiple input multiple output receiving antennas, a diversity receiving antenna and a diversity multiple input multiple output receiving antenna.

Optionally, the first antenna and the second antenna are respectively located on different sides of the terminal device.

the transmitting module 601 is specifically configured to switch the first antenna to a transmitting state by using the first switch, and transmit a first radio frequency signal to a satellite through the first antenna;

the receiving module 602 is specifically configured to switch the first antenna to a receiving state by using the first switch, and receive, through the first antenna, a first satellite signal transmitted by the satellite according to the first radio frequency signal.

Optionally, the radio frequency system further includes: the first switch is connected with the at least two antennas through the second switch, and the second switch is used for switching the antennas of the radio frequency system and satellite communication;

the processing module 603 is specifically configured to switch the first antenna to the second antenna using the second switch when the signal strength of the first satellite signal is less than the satellite signal strength threshold.

As shown in fig. 7, which is a schematic diagram of an embodiment of a radio frequency system in an embodiment of the present application, may include: an antenna switching device for satellite communications as shown in fig. 6.

As shown in fig. 8, which is a schematic diagram of an embodiment of a terminal device in an embodiment of the present application, a radio frequency system as shown in fig. 7, or any one of fig. 3A to 3C may be included.

Fig. 9 is a schematic diagram of another embodiment of a terminal device in an embodiment of the present application. May include:

the following describes the components of the mobile phone in the terminal device specifically with reference to fig. 9:

the RF circuit 910 may be used for receiving and transmitting signals during a message or a call, and particularly, after receiving downlink information of a base station, the signal is processed by the processor 980; in addition, the data of the design uplink is sent to the base station. Typically, the RF circuitry 910 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (Low Noise Amplifier, LNA), a duplexer, and the like. In addition, the RF circuitry 910 may also communicate with networks and other devices via wireless communications. The wireless communications may use any communication standard or protocol including, but not limited to, global system for mobile communications (Global System of Mobile communication, GSM), general packet radio service (General Packet Radio Service, GPRS), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), long term evolution (Long Term Evolution, LTE), email, short message service (Short Messaging Service, SMS), and the like.

The memory 920 may be used to store software programs and modules, and the processor 980 performs various functional applications and data processing by operating the software programs and modules stored in the memory 920. The memory 920 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 920 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The input unit 930 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the handset. In particular, the input unit 930 may include a touch panel 931 and other input devices 932. The touch panel 931, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (such as operations of the user on the touch panel 931 or thereabout using any suitable object or accessory such as a finger, a stylus, or the like) and drive the corresponding connection device according to a predetermined program. Alternatively, the touch panel 931 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device and converts it into touch point coordinates, which are then sent to the processor 980, and can receive commands from the processor 980 and execute them. In addition, the touch panel 931 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 930 may include other input devices 932 in addition to the touch panel 931. In particular, other input devices 932 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc.

The display unit 940 may be used to display information input by a user or information provided to the user and various menus of the mobile phone. The display unit 940 may include a display panel 941, and alternatively, the display panel 941 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch panel 931 may overlay the display panel 941, and when the touch panel 931 detects a touch operation thereon or thereabout, the touch operation is transferred to the processor 980 to determine a type of touch event, and then the processor 980 provides a corresponding visual output on the display panel 941 according to the type of touch event. Although in fig. 9, the touch panel 931 and the display panel 941 are implemented as two separate components for the input and output functions of the mobile phone, in some embodiments, the touch panel 931 may be integrated with the display panel 941 to implement the input and output functions of the mobile phone.

The handset may also include at least one sensor 950, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 941 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 941 and/or the backlight when the mobile phone moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured with the handset are not described in detail herein.

Audio circuitry 960, speaker 961, microphone 962 may provide an audio interface between a user and a cell phone. Audio circuit 960 may transmit the received electrical signal converted from audio data to speaker 961, where it is converted to a sound signal by speaker 961 for output; on the other hand, microphone 962 converts the collected sound signals into electrical signals, which are received by audio circuit 960 and converted into audio data, which are processed by audio data output processor 980 for transmission to, for example, another cell phone via RF circuit 910 or for output to memory 920 for further processing.

Wi-Fi belongs to a short-distance wireless transmission technology, and a mobile phone can help a user to send and receive e-mails, browse webpages, access streaming media and the like through a Wi-Fi module 970, so that wireless broadband Internet access is provided for the user. Although fig. 9 shows Wi-Fi module 970, it is understood that it does not belong to the necessary constitution of the handset, and can be omitted entirely as needed within the scope of not changing the essence of the invention.

The processor 980 is a control center of the handset, connecting various parts of the entire handset using various interfaces and lines, performing various functions and processing data of the handset by running or executing software programs and/or modules stored in the memory 920, and invoking data stored in the memory 920, thereby performing overall monitoring of the handset. Optionally, processor 980 may include one or more processing units; preferably, the processor 980 may integrate an application processor with a modem processor, wherein the application processor primarily handles operating systems, user interfaces, applications programs, etc., and the modem processor primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 980.

The handset further includes a power supply 990 (e.g., a battery) for powering the various components, which may be logically connected to the processor 980 by a power management system, such as for performing charge, discharge, and power management functions via the power management system.

Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which will not be described herein.

In the embodiment of the application, the terminal equipment comprises a radio frequency system, wherein the radio frequency system comprises at least two antennas;

RF circuitry 910 for transmitting a first radio frequency signal to a satellite through a first antenna; receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna;

a processor 980 for switching the first antenna to a second antenna for communication with the satellite if the signal strength of the first satellite signal is less than a satellite signal strength threshold;

Optionally, the processor 980 is further configured to output a hint information, where the hint information is used to hint the rotating terminal device to receive the satellite signal.

Optionally, the processor 980 is further configured to communicate with the satellite through the first antenna if the signal strength of the first satellite signal is greater than or equal to the satellite signal strength threshold.

Optionally, the first antenna and the second antenna are different;

RF circuitry 910, in particular, for switching the first antenna to a transmit state using the first switch, through which a first radio frequency signal is transmitted to a satellite; and switching the first antenna to a receiving state by using the first switch, and receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna.

the processor 980 is specifically configured to switch the first antenna to the second antenna using the second switch if the signal strength of the first satellite signal is less than the satellite signal strength threshold.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may 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 loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. 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 one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of 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.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. An antenna switching method for satellite communications, the method being applied to a radio frequency system comprising at least two antennas, the method comprising:

2. The method according to claim 1, wherein the method further comprises:

and outputting prompt information, wherein the prompt information is used for prompting the rotating terminal equipment to receive satellite signals.

3. The method according to claim 1, wherein the method further comprises:

and under the condition that the signal intensity of the first satellite signal is larger than or equal to the satellite signal intensity threshold value, communicating with the satellite through the first antenna.

4. A method according to any one of claims 1-3, wherein the first and second antennas are different;

5. A method according to any of claims 1-3, characterized in that the first antenna and the second antenna are located on different sides of the terminal device, respectively.

6. The method of claim 4, wherein the radio frequency system further comprises: the first switch is connected with the at least two antennas and is used for switching the antennas of the radio frequency system to a transmitting state or a receiving state;

Said transmitting a first radio frequency signal to a satellite through said first antenna comprising:

switching the first antenna to a transmit state using the first switch, transmitting a first radio frequency signal to a satellite through the first antenna;

the receiving, by the first antenna, a first satellite signal transmitted by the satellite according to the first radio frequency signal, including:

and switching the first antenna to a receiving state by using the first switch, and receiving a first satellite signal transmitted by the satellite according to the first radio frequency signal through the first antenna.

7. The method of claim 6, wherein the radio frequency system further comprises: the first switch is connected with the at least two antennas through the second switch, and the second switch is used for switching the antennas of the radio frequency system and satellite communication;

the switching the first antenna to a second antenna when the signal strength of the first satellite signal is less than a satellite signal strength threshold, comprising:

the first antenna is switched to a second antenna using the second switch if the signal strength of the first satellite signal is less than a satellite signal strength threshold.

8. An antenna switching device for satellite communications, the device being applied to a radio frequency system comprising at least two antennas, the device comprising:

9. A terminal device, comprising:

a memory storing executable program code;

a processor and transceiver coupled to the memory;

the processor and the transceiver being adapted to correspondingly perform the method of any one of claims 1-7.

10. A computer readable storage medium comprising instructions which, when run on a processor, cause the processor to perform the method of any of claims 1-7.