Full-duplex radio frequency control system, control method, communication module, storage medium and vehicle

Abstract

The invention discloses a full-duplex radio frequency control system and method, a communication module, a storage medium and a vehicle. The full-duplex radio frequency control system comprises a baseband unit, a power division unit and an antenna unit, the baseband unit is connected with the antenna unit through the power division unit; the power division unit is used for acquiring M paths of to-be-sent signals and distributing the power of the M paths of to-be-sent signals into N paths of to-be-sent signals; the antenna unit is used for sending the N paths of to-be-sent signals and / or receiving N paths of to-be-received signals; wherein M and N are integers greater than 0. Therefore, according to the invention, the M paths of to-be-sent signals are divided into the N paths of to-be-sent signals, so that the receiving and sending functions of the N antennas are realized at relatively low cost.

Description

Technical Field

[0001] The present application relates to the field of communication technologies, and particularly to a full-duplex radio frequency control system, a control method, a communication module, a storage medium, and a vehicle. Background Art

[0002] In the existing network environment, the requirements for the uplink signal data throughput in wireless communication are getting higher and higher, and the signal power division level is also getting higher and higher (64QAM -> 256QAM -> 1024QAM -> 4096QAM), and different modes and frequency bands may need to support radio frequency carrier combinations such as CA / ENDC / ULMIMO, etc. The requirements for the signal strength and signal quality of the terminal's uplink signal are getting higher and higher. The coverage of the terminal's uplink signal has always been a pain point in the industry, and as the demand for the uplink data throughput in the network application is getting higher and higher, the quality of the uplink signal communication has a greater impact on the user's communication experience;

[0003] The current vehicle-mounted communication unit solutions basically follow the mobile phone solutions, but there are significant differences in volume between vehicles and mobile phones, and the antenna performance and wireless signals are easily blocked and affected by the large-area metal of the vehicle body; there are easily signal dead zones in the vehicle-mounted radio frequency environment. Currently, in a vehicle-mounted communication unit, one frequency band of 4G / 5G usually supports 4 antennas, but only 1 or 2 of them can be used for transmission, wasting antenna resources. Summary of the Invention

[0004] The present application aims to provide a full-duplex radio frequency control system, a control method, a communication module, a storage medium, and a vehicle, which can at least solve the problems of poor communication quality and wasted antenna resources in existing vehicles.

[0005] To solve the above technical problems, the present application is implemented as follows:

[0006] In a first aspect, the present application discloses a full-duplex radio frequency system, including: a baseband unit, a power division unit, and an antenna unit; the baseband unit is connected to the antenna unit through the power division unit; the power division unit is configured to obtain M signals to be transmitted, and distribute the power of the M signals to be transmitted into N signals to be transmitted; the antenna unit is configured to transmit the N signals to be transmitted and / or receive N signals to be received; where M and N are integers greater than 0;

[0007] As an embodiment of the present application, the number of M signals to be transmitted is less than the number of N signals to be transmitted.

[0008] As an embodiment of the present application, when M = 1 and N = 4, the power division unit obtains 1 signal to be transmitted, and distributes the power of the 1 signal to be transmitted into 4 signals to be transmitted.

[0009] As an embodiment of the present application, when M = 2 and N = 4, the power splitting unit acquires 2 signals to be transmitted and distributes the power of the 2 signals to be transmitted into 4 signals to be transmitted.

[0010] As an embodiment of the present application, the power splitting unit includes a power splitter, and the power splitter is an equal power splitter; the equal power splitter is used to equally divide the power of M signals to be transmitted to obtain N signals to be transmitted, the power of the N signals to be transmitted is the same, and the N signals to be transmitted are at least two.

[0011] As an embodiment of the present application, the power splitting unit includes a power splitter, and the power splitter is an unequal power splitter or a directional coupler; the unequal power splitter or the directional coupler is used to proportionally distribute the power of M signals to be transmitted to obtain N signals to be transmitted, the power ratio of the N signals to be transmitted is the same as the power distribution ratio, and the N signals to be transmitted are at least two.

[0012] As an embodiment of the present application, the system further includes at least one of the following: an amplifier, a filter, a transmitter, a receiver, a digital / analog converter, and an analog / digital converter.

[0013] As an embodiment of the present application, the power splitting unit is connected to the antenna unit through a circulator.

[0014] As an embodiment of the present application, the number of circulators is N, the characteristic parameters of the N circulators are the same, and / or the physical structures and dimensions of the N circulators are the same.

[0015] As an embodiment of the present application, the antenna unit includes a main antenna and a diversity antenna. The main antenna is used for transmitting and receiving radio frequency signals and for the interaction of communication signaling protocols between the terminal and the base station, and the diversity antenna is used for transmitting and receiving radio frequency signals.

[0016] As an embodiment of the present application, the antenna unit includes a common antenna for transmitting and receiving.

[0017] In a second aspect, the present application also discloses a method for controlling the above full-duplex radio frequency system, including: acquiring M signals to be transmitted and splitting the M signals to be transmitted into N signals to be transmitted; transmitting the N signals to be transmitted, and / or receiving N signals to be received, where M and N are integers greater than 0;

[0018] As an embodiment of the present application, the number of M signals to be transmitted is less than the number of N signals to be transmitted.

[0019] As an embodiment of the present application, when M = 1 and N = 4, acquire 1 signal to be transmitted and distribute the power of the 1 signal to be transmitted into 4 signals to be transmitted.

[0020] As an embodiment of the present application, when M = 2 and N = 4, two signals to be transmitted are obtained, and the power of the two signals to be transmitted is distributed into four signals to be transmitted.

[0021] As an embodiment of the present application, the step of obtaining M signals to be transmitted and distributing the power of the M signals to be transmitted into N signals to be transmitted includes: evenly dividing the power of the M signals to be transmitted to obtain N signals to be transmitted, where the N signals to be transmitted have the same power and the number of the N signals to be transmitted is at least two.

[0022] As an embodiment of the present application, the step of obtaining M signals to be transmitted and distributing the power of the M signals to be transmitted into N signals to be transmitted includes: distributing the M signals to be transmitted according to the power ratio to obtain N signals to be transmitted, where the power ratio of the N signals to be transmitted is the same as the power distribution ratio, and the number of the N signals to be transmitted is at least two.

[0023] As an embodiment of the present application, the steps of transmitting N signals to be transmitted and / or receiving N signals to be received are implemented by an antenna unit, and the antenna unit includes a main antenna and a diversity antenna.

[0024] As an embodiment of the present application, receiving N signals to be received further includes determining whether to switch the main antenna based on the strength of the N signals to be received and a preset signal strength threshold.

[0025] As an embodiment of the present application, when the strength of the signal to be received by the main antenna is lower than the preset signal strength threshold, the antenna with the highest power among the N signals to be received in the diversity antenna is used as the new main antenna.

[0026] As an embodiment of the present application, when the strength of the signal to be received by the main antenna is higher than or equal to the preset signal strength threshold, it is determined whether the strength of the N signals to be received in the main antenna is higher than the strength of the signals to be received by the diversity antenna within T time.

[0027] As an embodiment of the present application, when the strength of the signal to be received by the main antenna is higher than or equal to the strength of the signals to be received by the diversity antenna within T time, the main antenna is not switched.

[0028] As an embodiment of the present application, when the strength of the signal to be received by the main antenna is lower than the strength of the signals to be received by the diversity antenna within T time, the antenna with the highest strength among the N signals to be received in the diversity antenna is used as the new main antenna.

[0029] As an embodiment of the present application, before determining whether to switch the main set antenna based on the strength of the N received signals to be received and the preset signal strength threshold, the following steps are also included: the baseband unit first establishes a mapping table of the received signal strength of the main set antenna, the received signal strength of the diversity antenna, and the received signal strength of the antenna, for the baseband unit to judge the magnitude of the strength of the N received signals to be received and the preset strength threshold;

[0030] The received signal strength of the main set antenna is the power of the received signal of the main set antenna, the received signal strength of the diversity antenna is the power of the received signal of the diversity antenna, and the antenna received signal strength mapping table includes the minimum value of the received signal strength of the main set antenna, the power range of the received signal of the main set antenna under different working conditions, the minimum value of the received signal strength at time T, and the strength range of the received signal of the diversity antenna within time T.

[0031] In a third aspect, the present application also discloses a vehicle communication module, including the system according to any one of the first aspect.

[0032] In a fourth aspect, the present application also discloses a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the device installed with the computer storage medium is caused to execute the method according to any one of the second aspect.

[0033] In a fifth aspect, the present application also discloses a vehicle, including the vehicle communication module of the third aspect, and / or the computer-readable storage medium of the fourth aspect.

[0034] It can be seen that in the present application, the M signals to be transmitted are power-divided into N signals to be transmitted, so as to realize the receiving and transmitting functions of N antennas at a lower cost, analyze the N received signals to be received, and adjust the position of the main set antenna in real time, making full use of all antenna devices, increasing the radiation coverage range of the transmitted signal, and improving the radio frequency connection ability of the vehicle terminal. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 It is a schematic diagram of vehicle communication disclosed in an embodiment of the present application;

[0037] Figure 2 It is another schematic diagram of vehicle communication disclosed in an embodiment of the present application;

[0038] Figure 3It is a schematic diagram of the operation of single - antenna transmission and reception disclosed in an embodiment of the present application;

[0039] Figure 4 It is a schematic diagram of the operation of multi - antenna transmission and reception disclosed in an embodiment of the present application;

[0040] Figure 5 It is an overall schematic diagram of a full - duplex radio frequency system disclosed in an embodiment of the present application;

[0041] Figure 6 It is an overall schematic diagram of a circulator disclosed in an embodiment of the present application;

[0042] Figure 7 It is another overall schematic diagram of a full - duplex radio frequency system disclosed in an embodiment of the present application;

[0043] Figure 8 It is a flowchart of a control method for controlling a full - duplex radio frequency system disclosed in an embodiment of the present application;

[0044] Figure 9 It is another flowchart of a control method for controlling a full - duplex radio frequency system disclosed in an embodiment of the present application. Detailed implementation manners

[0045] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0046] Terms such as "first" and "second" in the specification and claims of the present application and the above - mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non - exclusive inclusion. For example, a process, method, device, product or terminal that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or terminals.

[0047] Referring to "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0048] In one embodiment, the terminal device in the present application is a vehicle, which may include not only vehicles (such as cars) in the vehicle network, but also in-vehicle devices or in-vehicle terminals in the vehicle network, etc. The present application does not limit the specific form of the terminal device when applied to the vehicle network.

[0049] To facilitate a better understanding of the present application, the following terms are explained:

[0050] The power divider, whose full name is power splitter and English name is Power divider, is a device that divides the energy of an input signal into two or more outputs with equal or unequal energies, or conversely, combines the energies of multiple signals into one output, and can also be called a combiner at this time. A certain degree of isolation should be ensured between the output ports of a power divider. Power dividers are usually classified into one-to-two (one input and two outputs), one-to-three (one input and three outputs), etc. according to the output. The main technical parameters of the power divider include power loss (including insertion loss, distribution loss, and reflection loss), voltage standing wave ratio of each port, isolation degree between power distribution ports, amplitude balance degree, phase balance degree, power capacity, and frequency band width, etc.

[0051] Circulator: A circulator is a three-port magnetic component that, when properly biased, can allow RF signals to flow bidirectionally within a certain bandwidth with a certain degree of loss, similar to a power divider. The internal part of the circulator works to isolate the forward and reverse signals at their respective ports, while the antenna port carries both the forward and reverse signals simultaneously. For continuous wave (CW) radars and other non-pulse radar solutions, the circulator is crucial to prevent a decrease in sensitivity and possible damage to the radar receiver.

[0052] Main antenna and diversity antenna: The main antenna refers to the antenna that includes the transmission and reception of RF signals and is responsible for the interaction of the communication signaling protocol between the terminal and the base station among multiple antennas. The diversity antenna is only responsible for the transmission and reception of RF signals. If the main antenna is interrupted, the interaction of the communication protocol between the terminal and the base station will be interrupted, thus unable to establish a link and the communication will be interrupted; if the main antenna cannot report the true signal quality of the terminal in real time and accurately, the communication parameters negotiated between the terminal and the base station will be in a non-optimal state, thus affecting the communication quality and even possibly dropping the connection.

[0053] To better understand the technical problems to be solved by the present application, the application scenario of the present application is further described. As Figures 1 to 4 , it is a schematic diagram of vehicle signal transmission.

[0054] As Figures 1 to 2As shown in the figure, the connection of a communication link requires coverage in two directions: a downlink signal (from the base station to the terminal) and an uplink signal (from the terminal to the base station). If the signal in one of the directions is weak and cannot reach the coverage distance required to establish a link, the connection will be interrupted, causing disconnection or inability to connect to the network. For example, Figure 1 As shown, when the downlink signal (base station signal) can cover the terminal and the uplink signal (vehicle terminal signal) can cover the base station, the wireless communication connection can be established normally; for example, Figure 2 As shown, when the downlink signal (base station signal) can cover the terminal, but the uplink signal (vehicle terminal signal) cannot cover the base station, the wireless communication cannot be established normally, resulting in disconnection and communication interruption. For a mobile phone, one antenna as a transceiver duplex antenna is sufficient. However, for a vehicle, due to the large volume of the vehicle and the shielding characteristics of metal materials, using only one antenna as a transceiver duplex antenna will affect the overall communication quality of the vehicle. Therefore, through structural improvements, converting all vehicle-mounted antennas to full-duplex communication can leverage the advantages of the large size and multiple antennas of the vehicle and improve the overall communication quality of the vehicle.

[0055] For example, Figures 3 to 4 As shown, when receiving, ANT1, ANT2, ANT3, and ANT4 work simultaneously, but when transmitting, only ANT1 works simultaneously. When only one uplink transmitting antenna sends a signal, it is difficult to achieve 360-degree full coverage due to the influence of the vehicle body metal. When the signal of ANT1 is affected, the overall communication quality of the vehicle will be affected. Although there is currently antenna hardware switch switching technology, only one antenna is still transmitting a signal at the same time, and when the vehicle is driving at high speed, due to the continuous switching of the base station cells connected to the vehicle network, the frequent hardware switch switching of the vehicle transmitting antenna will affect the vehicle communication performance. By using ANT1, ANT2, ANT3, and ANT4 as both receiving and transmitting antennas, good signal coverage can be achieved at all angles around the vehicle, solving the problem of signal dead zones caused by antenna occlusion on the vehicle. At the same time, all antennas can transmit and receive simultaneously. Even if one or more antennas are affected, as long as one antenna can complete the transmission of the signal for both uplink and downlink, the vehicle can still maintain good communication quality.

[0056] Embodiment 1

[0057] Please refer to Figure 5 , Figure 5 which is an overall schematic diagram of a full-duplex radio frequency system in this application. The radio frequency system includes a baseband unit, a power splitter unit, a circulator, and an antenna unit.

[0058] The baseband unit is used for modulating and demodulating communication digital baseband signals.

[0059] The power splitter unit is used to obtain M signals to be transmitted, and distribute the power of the M transmitted signals into N signals, so that the M signals to be transmitted can be sent in the form of N signals to be transmitted.

[0060] The antenna unit is used to receive or transmit signals. The number of antennas in the antenna unit is N, and the number of N can vary according to the requirements of the usage scenario.

[0061] In a possible embodiment, the radio frequency system further includes M transmission channels and N reception channels. The M transmission channels are used to process the signals sent by the baseband unit and then transmit them to the antenna unit, including S02 digital / analog converter, S03 radio frequency transmitter, S04 amplifier, S05 filter and S06 power splitter. The S02 digital / analog converter is used to convert digital signals into analog signals. The S03 transmitter is used to up-convert and frequency-select the low-frequency transmission signal into a high-frequency radio frequency signal. The S04 amplifier is used to amplify the signal to be transmitted. The S05 filter is used to perform out-of-band filtering on the signal to be transmitted. The S06 power splitter is used to distribute the power of the signal to be transmitted. The N reception channels are used to process the signals received by the antenna unit and then transmit them to the baseband unit, including S09 filter, S10 amplifier, S11 receiver. The receiver is used to down-convert and frequency-select the received radio frequency signal into a low-frequency signal, and S12 analog / digital conversion unit. The S09 filter is used to perform out-of-band filtering on the received signal. The S10 amplifier performs low-noise amplification on the received signal. The S11 receiver is used to convert and frequency-select the received radio frequency signal into a low-frequency signal. The S12 analog / digital converter is used to convert analog signals into digital signals.

[0062] In a possible embodiment, the power splitter can be an equal power splitter, or an unequal power splitter or a directional coupler. When the power splitter is an equal power splitter, the M signals to be transmitted are equally distributed into N signals to be transmitted, and the power between the N signals to be transmitted is the same. The N signals to be transmitted are at least two. When the power splitter is an unequal power splitter or a directional coupler, the M signals to be transmitted can be proportionally distributed into N signals to be transmitted with different powers according to the requirements. The N signals to be transmitted are at least two. In the above embodiments, there is a certain proportional relationship between M and N, that is, the number of M signals to be transmitted is less than the number of N signals to be transmitted.

[0063] It can be understood that according to the usage scenario, when it is necessary to distribute the M signals to be transmitted into different powers, the power splitter can also be an unequal power splitter or a power coupler.

[0064] Such as Figure 6As shown, it is an overall schematic diagram of a circulator in this application. As shown in the figure, this circulator has three ports. When a signal is input from port 1, port 2 is the signal output port, and port 3 is the isolation port, and almost no energy can pass through port 3; when a signal is input from port 2, port 3 is the signal output port, and port 1 is the isolation port, and almost no energy can pass through port 1. Thus, the dual-mode signal processing of simultaneously receiving and sending signals is realized.

[0065] In a possible embodiment, the power splitter is an equal-power splitter. When M = 1 and N = 4, as Figure 5 shown, at this time the power splitting unit evenly distributes 1 path of the signal to be sent into 4 paths of the signals to be sent and sends them to 4 antennas. At the same time, with the circulator as a duplex device, 4 paths of the signals to be received are received while receiving 4 paths of the signals to be sent.

[0066] At this time, the signal transmission and reception path of the radio frequency system is: the baseband unit issues the first signal, the power splitting unit converts and power-distributes the first signal into 4 second signals with the same power, and the second signals are transmitted by 4 antennas after passing through the circulator. The antenna unit receives the external third signal, sends the third signal to the power splitting unit through the circulator, and the power splitting unit converts the third signal into the fourth signal and issues it to the baseband unit.

[0067] In another possible embodiment, the power splitter is an equal-power splitter. When M = 2 and N = 4, as Figure 7 shown, at this time the power splitting unit evenly distributes 2 paths of the signals to be sent into 4 paths of the signals to be sent and sends them to 4 antennas. At the same time, with the circulator as a duplex device, 4 paths of the signals to be received are received while receiving 4 paths of the signals to be sent.

[0068] At this time, the signal transmission and reception path of the radio frequency system is: the baseband unit issues 2 first signals, the power splitting unit converts and power-distributes the 2 first signals into 4 second signals with the same power, and the second signals are transmitted by 4 antennas after passing through the circulator. The antenna unit receives the external third signal, sends the third signal to the power splitting unit through the circulator, and the power splitting unit converts the third signal into the fourth signal and issues it to the baseband unit.

[0069] It can be seen that in this application, the power splitting unit performs power distribution on M paths of the signals to be sent, uses the circulator as a duplex device, reasonably utilizes all the antennas, enables each antenna to have the functions of both receiving and transmitting at the same time. When a certain antenna has a problem, other antennas can still receive signals, improving the stability of the radio frequency system.

[0070] As Figure 5 or Figure 7As shown, the radio frequency system in the present application can switch to other antennas with better signals when the signal quality of one or more antennas is poor, ensuring the stability of radio frequency system communication.

[0071] Specifically, as Figure 8 shown, Figure 8 A control method for a full-duplex radio frequency system provided by the present application is applied to any of the aforementioned radio frequency systems, and the specific steps are as follows:

[0072] S101, Obtain M signals to be transmitted, and divide the M signals to be transmitted into N signals to be transmitted; transmit the N signals to be transmitted, and / or receive N signals to be received, where M and N are integers greater than 0.

[0073] Dividing the M signals to be transmitted into N signals to be transmitted enables the signals to be transmitted to change from the original M paths to N paths, realizing the receiving function of multiple antennas.

[0074] S1021, When M = 1 and N = 4, obtain 1 signal to be transmitted, and divide the power of the 1 signal to be transmitted into 4 signals to be transmitted.

[0075] When M = 1 and N = 4, the 1 signal to be transmitted is divided into 4 signals, and one output terminal can be connected to four antennas, realizing the receiving function of multiple antennas.

[0076] S1022, When M = 2 and N = 4, obtain 2 signals to be transmitted, and divide the power of the 2 signals to be transmitted into 4 signals to be transmitted.

[0077] When M = 2 and N = 4, the 2 signals to be transmitted are divided into 4 signals, and two output terminals can be connected to four antennas, realizing the receiving function of multiple antennas.

[0078] S1023, Transmit the N signals to be transmitted.

[0079] After dividing the M signals to be transmitted into N signals to be transmitted, transmit the N signals to be transmitted outward, completing the whole process from acquisition, power division to transmission.

[0080] Since the method in the present application can obtain N signals to be received, based on the different powers of the N signals to be received, the antenna with the highest power can be selected in real time as the transceiver antenna, ensuring that the communication quality is always in the best condition that can be achieved. The specific judgment steps are as follows:

[0081] S201, Establish a mapping table of the received signal strength of the main set antenna, the received signal strength of the diversity antenna, and the received signal strength of the antenna.

[0082] Establish an antenna received signal strength mapping table in advance, stipulate the minimum value of the received signal strength of the main set antenna, the power range of the received signal of the main set antenna under different working conditions, the minimum value of the received signal strength within T time, and the strength range of the received signal of the diversity antenna within T time. Exemplarily, the T time can be 1 ms, and different times can be set according to the frequency and wavelength of the radio frequency system.

[0083] S202. Based on the strength of N signals to be received and a preset signal strength threshold, determine whether to switch the main set antenna.

[0084] Compare the N signals to be received received by the baseband unit with the preset strength threshold to determine whether to switch the main set antenna, and / or compare the N signals to be received to select the antenna with the best signal as the main set antenna to ensure that the main set antenna is always the antenna with the best signal. In this application, a signal threshold judgment algorithm is used to judge the signal strength of the main set antenna and the diversity antenna.

[0085] S2021. Judge whether the received signal strength of the main set antenna is lower than the preset signal strength.

[0086] Detect whether the current main set antenna is the antenna with the best signal reception to ensure communication quality.

[0087] S2022. If the received signal strength of the main set antenna is lower than the preset signal strength, switch the antenna with the highest power in the diversity antenna to the main set antenna.

[0088] If the received signal strength of the main set antenna is lower than the preset signal strength at this time, then switch the main set antenna to ensure communication stability.

[0089] S2023. If the signal strength of the main set antenna is higher than the preset signal strength threshold, then detect whether the signal of the main set antenna within T time is higher than the received signal strength of the diversity antenna to be received.

[0090] The received signal strength of the main set antenna is higher than the preset signal strength, indicating that the communication quality is acceptable at this time. However, in order to pursue better communication quality and give full play to the advantages of multiple transceiver antennas, the received signal strength of the main set antenna within T time is still compared with the received signal strength of the diversity antenna. If the received signal strength of the main set antenna within T time is lower than the received signal strength of the diversity antenna, then execute S2022. If the received signal strength of the main set antenna within T time is higher than or equal to the received signal strength of the diversity antenna, then execute S20231.

[0091] S20231. Maintain the current signal reception mode.

[0092] That is, the current main set antenna is the antenna with the highest current power and does not need to be switched.

[0093] It can be seen that in this application, the signal strength of each receiving antenna is calculated through a signal threshold judgment algorithm, and the receiving path and the mapping relationship between the connected antenna and the main set reception in the baseband unit are automatically switched, so that when the vehicle's radio frequency module and antenna module are damaged or the signal is poor, as long as one path and one antenna for transmission and reception work normally, the wireless communication connection ability can still be maintained.

[0094] This application also discloses a vehicle-mounted communication module, including the system of any one of the embodiments of Embodiment 1.

[0095] In addition, according to an embodiment of the present application, there is also provided a computer-readable storage medium, on which program instructions are stored. When the program instructions are run by a computer or a processor, they are used to execute the corresponding steps of the radio frequency system control method in the embodiment of the present application, and are used to implement the corresponding modules in the communication system of the radio frequency system control method according to the embodiment of the present application. The computer-readable storage medium may include, for example, the storage component of a tablet computer, the hard disk of a personal computer, a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a portable compact disc read-only memory (CD-ROM), a USB memory, or any combination of the above storage media. The computer-readable storage medium may be any combination of one or more computer-readable storage media. For example, one computer-readable storage medium contains computer-readable program code for randomly generating an action instruction sequence, and another computer-readable storage medium contains computer-readable program code for controlling crystal growth.

[0096] This application also provides a vehicle, including the vehicle-mounted communication module as described above, and / or the computer-readable storage medium as described above.

[0097] Finally, it should be noted that: the full-duplex radio frequency system, control method and vehicle disclosed in the embodiments of this application are only the preferred embodiments of this application, and are only used to illustrate the technical solutions of this application, rather than to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A full-duplex radio frequency system, characterized in that, Including: Baseband unit, power splitter unit, antenna unit; The baseband unit is connected to the antenna unit through the power splitter unit; The power splitter unit is used to obtain M signals to be transmitted, and distribute the power of the M signals to be transmitted into N signals to be transmitted; The antenna unit is used to transmit the N signals to be transmitted, and / or receive N signals to be received; Wherein, M and N are integers greater than 0.

2. The system according to claim 1, wherein The number of the M signals to be transmitted is less than the number of the N signals to be transmitted.

3. The system according to any one of claims 1-2, characterized in that, When M = 1 and N = 4, the power splitter unit obtains 1 signal to be transmitted, and distributes the power of the 1 signal to be transmitted into 4 signals to be transmitted.

4. The system according to any one of claims 1-2, characterized in that, When M = 2 and N = 4, the power splitter unit obtains 2 signals to be transmitted, and distributes the power of the 2 signals to be transmitted into 4 signals to be transmitted.

5. The system according to any one of claims 1-4, characterized in that, The power splitter unit includes a power splitter, and the power splitter is an equal-power splitter; The equal-power splitter is used to equally divide the power of the M signals to be transmitted to obtain the N signals to be transmitted, the powers of the N signals to be transmitted are the same, and the number of the N signals to be transmitted is at least two.

6. The system according to any one of claims 1-4, characterized in that The power splitter unit includes a power splitter, and the power splitter is an unequal-power splitter or a directional coupler; the unequal-power splitter or the directional coupler is used to proportionally distribute the power of the M signals to be transmitted to obtain the N signals to be transmitted, the power ratio of the N signals to be transmitted is the same as the power distribution ratio, and the number of the N signals to be transmitted is at least two.

7. The system according to any one of claims 1-6, characterized in that The system further includes at least one of the following: amplifier, filter, transmitter, receiver, digital / analog converter, and analog / digital converter.

8. The system according to any one of claims 1-7, characterized in that, The power splitter unit is connected to the antenna unit through a circulator.

9. The system according to claim 8, wherein The number of the circulators is N, the characteristic parameters of the N circulators are the same, and / or the physical structures and sizes of the N circulators are the same.

10. The system according to any one of claims 1-9, characterized in that, The antenna unit includes a main antenna and a diversity antenna. The main antenna is used for the transmission and reception of radio frequency signals and the interaction of communication signaling protocols between the terminal and the base station. The diversity antenna is used for the transmission and reception of radio frequency signals.

11. The system according to any one of claims 1-10, characterized in that, The antenna unit includes a shared transmit and receive antenna.

12. A full-duplex radio frequency system communication method, characterized in that, The method includes: Obtaining M signals to be transmitted, and splitting the M signals to be transmitted into N signals to be transmitted; Transmitting the N signals to be transmitted, and / or receiving N signals to be received, wherein M and N are integers greater than 0.

13. The method according to claim 12, wherein The number of the M signals to be transmitted is less than the number of the N signals to be transmitted.

14. The method according to any one of claims 12 - 13, characterized in that, When M = 1 and N = 4, obtaining 1 signal to be transmitted, and distributing the power of the 1 signal to be transmitted into 4 signals to be transmitted.

15. The method according to any one of claims 12-13, characterized in that, When M = 2 and N = 4, obtaining 2 signals to be transmitted, and distributing the power of the 2 signals to be transmitted into 4 signals to be transmitted.

16. The method according to any one of claims 12 - 15, characterized in that, The step of obtaining M signals to be transmitted and splitting the M signals to be transmitted into N signals to be transmitted includes: Equally dividing the power of the M signals to be transmitted to obtain the N signals to be transmitted, the powers of the N signals to be transmitted are the same, and the number of the N signals to be transmitted is at least two.

17. The method according to any one of claims 12-15, characterized in that Obtaining the M signals to be transmitted and splitting the M signals to be transmitted into N signals to be transmitted includes: The M signals to be transmitted are split according to a power ratio to obtain the N signals to be transmitted. The power ratio of the N signals to be transmitted is the same as the power splitting ratio, and the number of the N signals to be transmitted is at least two.

18. The method according to claim 12, wherein The step of transmitting the N signals to be transmitted and / or receiving the N signals to be received is implemented by an antenna unit, and the antenna unit includes a main antenna and a diversity antenna.

19. The method according to claim 18, characterized in that, The step of receiving the N signals to be received further includes: Determining whether to switch the main antenna based on the strength of the N signals to be received and a preset signal strength threshold.

20. The method according to claim 19, wherein When the strength of the signal to be received by the main antenna is lower than the preset signal strength threshold, the antenna with the highest power among the N signals to be received in the diversity antenna is used as the new main antenna.

21. The method according to claim 19, wherein When the strength of the signal to be received by the main antenna is higher than or equal to the preset signal strength threshold, it is determined whether the strength of the N signals to be received in the main antenna is higher than the strength of the signals to be received by the diversity antenna within T time.

22. The method according to claim 21, characterized in that, When the strength of the signal to be received by the main antenna is higher than or equal to the strength of the signals to be received by the diversity antenna within T time, the main antenna is not switched. When the strength of the signal to be received by the main antenna is lower than the strength of the signals to be received by the diversity antenna within T time, the antenna with the highest strength among the N signals to be received in the diversity antenna is used as the new main antenna.

23. The method according to claim 19, characterized in that, Before performing the step of determining whether to switch the main antenna based on the strength of the N signals to be received and the preset signal strength threshold, it further includes: The baseband unit first establishes a mapping table of the received signal strength of the main antenna, the received signal strength of the diversity antenna, and the received signal strength of the antenna, so as to enable the baseband unit to judge the magnitude of the strength of the N signals to be received and the preset strength threshold. The received signal strength of the main antenna is the power of the signal received by the main antenna, the received signal strength of the diversity antenna is the power of the signal received by the diversity antenna, and the mapping table of the received signal strength of the antenna includes the minimum value of the received signal strength of the main antenna, the power range of the signal received by the main antenna under different working conditions, the minimum value of the received signal strength within T time, and the strength range of the signal received by the diversity antenna within T time.

24. A vehicle-mounted communication module, comprising the system according to any one of claims 1-11.

25. A computer-readable storage medium, characterized in that, A computer program is stored in the computer-readable storage medium. When the computer program is executed by a processor, the device installed with the computer storage medium executes the method according to any one of claims 12-23.

26. A vehicle, comprising the device according to claim 24, and / or the computer-readable storage medium according to claim 25.

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