CN113965239A

CN113965239A - Radio frequency signal transmission control method and device and radio frequency system

Info

Publication number: CN113965239A
Application number: CN202111479502.3A
Authority: CN
Inventors: 薛源
Original assignee: Qingdao Goertek Intelligent Sensor Co Ltd
Current assignee: Qingdao Goertek Intelligent Sensor Co Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-01-21
Anticipated expiration: 2041-12-06
Also published as: CN113965239B

Abstract

The disclosure relates to a radio frequency signal transmission control method and device and a radio frequency system. The transmission control method of the radio frequency signal is applied to a radio frequency system, the radio frequency system comprises a radio frequency circuit and an antenna, a plurality of transmission paths are arranged between the radio frequency circuit and the antenna, and the plurality of transmission paths comprise a through path and at least one filtering path; the method comprises the following steps: acquiring a rate self-adaptive control signal of the radio frequency system; determining a target transmission path among the plurality of transmission paths according to the rate adaptive control signal; and controlling the radio frequency circuit and the antenna to transmit radio frequency signals through a target transmission channel.

Description

Radio frequency signal transmission control method and device and radio frequency system

Technical Field

The disclosed embodiments relate to the field of communications technologies, and in particular, to a method and an apparatus for controlling transmission of a radio frequency signal, and a radio frequency system.

Background

In the radio frequency communication technology, the spurious interference is an important functional index for evaluating a radio frequency system. Stray interference is interference caused by stray radiation outside the frequency band of one radio frequency system falling into the receiving frequency band of another radio frequency system. The current solution to the spurious interference is to connect a filter in series in the rf path, but the introduction of the filter will additionally increase the insertion loss of the path, thereby affecting the power consumption.

Disclosure of Invention

An object of the embodiments of the present disclosure is to provide a method and an apparatus for controlling transmission of a radio frequency signal, and a radio frequency system, which can reduce an influence on power consumption while satisfying spurious interference performance.

According to a first aspect of the present disclosure, a transmission control method of a radio frequency signal is provided. The transmission control method of the radio frequency signal is applied to a radio frequency system, the radio frequency system comprises a radio frequency circuit and an antenna, a plurality of transmission paths are arranged between the radio frequency circuit and the antenna, and the plurality of transmission paths comprise a through path and at least one filtering path; the method comprises the following steps:

acquiring a rate self-adaptive control signal of the radio frequency system;

determining a target transmission path among the plurality of transmission paths according to the rate adaptive control signal;

and controlling the radio frequency circuit and the antenna to transmit radio frequency signals through the target transmission channel.

Optionally, the determining a target transmission path in the plurality of transmission paths according to the rate adaptive control signal includes:

acquiring the transmitting power of the radio frequency system and the communication rate of the radio frequency system from the rate adaptive control signal;

determining whether filtering is needed or not according to the transmitting power of the radio frequency system and the communication rate of the radio frequency system;

and determining the through path as a target transmission path without filtering.

Optionally, the determining a target transmission path in the plurality of transmission paths according to the rate adaptive control signal further includes:

and under the condition that filtering is needed, determining one filtering channel as a target transmission channel according to the working frequency band of the radio frequency system.

Optionally, the determining whether filtering is required according to the transmission power of the radio frequency system and the communication rate of the radio frequency system includes:

according to the transmitting power of the radio frequency system and the communication rate of the radio frequency system, finding out the spurious level of the radio frequency system in a pre-established mapping relation table, wherein the mapping relation table stores the corresponding relation between the combination of the transmitting power and the communication rate and the spurious level;

and determining whether filtering is needed or not according to the spurious level of the radio frequency system.

Optionally, the method further comprises:

acquiring the transmitting power of the radio frequency system from the rate self-adaptive control signal;

determining that a preset event occurs in the radio frequency system under the condition that the transmitting power of the radio frequency system is greater than or equal to a preset power;

under the condition that the duration of a preset event exceeds the preset duration, determining that a communication link of the radio frequency system is abnormal, controlling the radio frequency system to stop transmitting and storing data to be transmitted into a storage area;

and after the communication link of the radio frequency system is recovered to be normal, controlling the radio frequency system to transmit the data stored in the storage area.

According to a second aspect of the present disclosure, a radio frequency system is provided. The radio frequency system comprises a radio frequency circuit, an antenna, a control module, a plurality of channel modules, a first multi-channel selection switch and a second multi-channel selection switch;

the plurality of channel modules comprises a pass-through module and at least one filtering module;

the first end of the first multi-channel selection switch is connected with the radio frequency circuit, and a plurality of second ends of the first multi-channel selection switch are correspondingly connected with the first ends of the plurality of channel modules one by one;

the first end of the second multi-channel selection switch is connected with the antenna, and a plurality of second ends of the second multi-channel selection switch are correspondingly connected with the second ends of the plurality of channel modules one by one;

the control module is configured to determine a target channel module among the plurality of channel modules according to the rate adaptive control signal of the radio frequency system, and control the first multichannel selection switch and the second multichannel selection switch to turn on the target channel module, so that the radio frequency circuit and the antenna transmit a radio frequency signal through the target channel module.

Optionally, the determining a target channel module among the plurality of channel modules according to the rate adaptive control signal of the radio frequency system includes:

determining the straight-through module as a target channel module under the condition that filtering is not needed;

and under the condition that filtering is needed, determining one filtering module as a target channel module according to the working frequency band of the radio frequency system.

Optionally, the control module is further configured to:

According to a third aspect of the present disclosure, there is provided a transmission control apparatus of a radio frequency signal. The apparatus for controlling transmission of radio frequency signals comprises a processor and a memory, wherein the memory stores computer instructions, and the computer instructions, when executed by the processor, implement the steps of the method for controlling transmission of radio frequency signals according to any one of the first aspect of the present disclosure.

One advantageous effect of the embodiments of the present disclosure is that, based on a rate adaptive control signal of a radio frequency system, a transmission path is adaptively switched between a through path and at least one filtering path, thereby reducing power consumption of the radio frequency system under the condition of satisfying a spurious level control requirement.

Other features of embodiments of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the embodiments of the disclosure.

FIG. 1 is a schematic diagram of a radio frequency method provided by an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a mapping relationship table provided in the embodiment of the present disclosure;

fig. 3 is a schematic diagram of a radio frequency system provided by an embodiment of the present disclosure;

fig. 4 is a schematic diagram of a transmission control apparatus for radio frequency signals according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1, a method for controlling transmission of a radio frequency signal according to an embodiment of the present disclosure is described.

The transmission control method of the radio frequency signal is applied to a radio frequency system. The radio frequency system comprises a radio frequency circuit and an antenna, and a plurality of transmission channels are arranged between the radio frequency circuit and the antenna.

The plurality of transmission paths includes a pass-through path and at least one filter path. The through path is a transmission path that does not have a filtering function and allows the radio frequency signal to pass through directly. The direct path is arranged, so that the radio frequency system can automatically select to skip the filtering function when the filtering is not needed, and the purposes of low power consumption, power saving and system compatibility improvement are achieved. In case of multiple filter paths, the multiple filter paths correspond to different filtering requirements, i.e. to different target filter bands. In the embodiment of the present disclosure, the target filtering frequency band may refer to a frequency band that needs to be filtered.

The transmission control method of the radio frequency signal comprises steps S102-S106.

And S102, acquiring a rate adaptive control signal of the radio frequency system.

Rate Adaptive Data Rate (ADR) is one of the self-contained functions of many radio frequency systems, and the Rate Adaptive control signal is the ADR command. After the ADR function is started, the radio frequency system can adaptively adjust the transmitting power and the communication rate of the radio frequency system. The rate adaptive control signal includes a transmission power and a communication rate of the radio frequency system, and the radio frequency system operates according to the transmission power and the communication rate indicated in the rate adaptive control signal.

And step S104, determining a target transmission path in the plurality of transmission paths according to the rate adaptive control signal.

And S106, controlling the radio frequency circuit and the antenna to transmit the radio frequency signal through the target transmission channel.

In one example, step S104 may include steps S1042-S1048.

Step S1042, obtaining the transmission power of the radio frequency system and the communication rate of the radio frequency system from the rate adaptive control signal.

And step S1044, determining whether filtering is needed according to the transmitting power of the radio frequency system and the communication rate of the radio frequency system.

And finding out the spurious level of the radio frequency system in a pre-established mapping relation table according to the transmitting power and the communication rate acquired from the rate self-adaptive control signal, wherein the mapping relation table stores the corresponding relation between the combination of the transmitting power and the communication rate and the spurious level. It is then determined whether filtering is required based on the spur level of the radio frequency system. Specifically, whether the spurious level meets a preset requirement is determined, under the condition that the spurious level meets the preset requirement, it is determined that the radio frequency system does not need to perform filtering, and under the condition that the spurious level does not meet the preset requirement, it is determined that the radio frequency system needs to perform filtering.

For radio frequency systems, a range of transmit powers may be able to support its communication rate requirements, i.e., one communication rate corresponds to a range of transmit powers. The transmission power range corresponding to the communication rate is cut into a plurality of small ranges in advance to form a combination of the communication rate and the small-range transmission power, and the level of the spurious generated by the radio frequency system under the condition of the combination is measured, so that a mapping relation table such as shown in fig. 2 is formed. Taking the mapping table shown in fig. 2 as an example, for the communication rate a1, the corresponding transmission power is divided into 3 small ranges, which are power B11 to power B12, power B13 to power B14, and power B15 to power B16. Assuming that the transmission power and the communication rate obtained from the rate adaptive control signal correspond to combination 2, the spur level is C2. And determining whether the spurious level C2 is smaller than a preset spurious level upper limit threshold, determining that the radio frequency system does not need to perform filtering under the condition that the spurious level C2 is smaller than the preset spurious level upper limit threshold, and determining that the radio frequency system needs to perform filtering under the condition that the spurious level C2 is larger than or equal to the preset spurious level upper limit threshold.

And step S1046, determining the through path as a target transmission path without filtering.

In the embodiment of the disclosure, a mapping relation table is established by testing the spurious level in advance, the spurious level can be read according to the rate adaptive control signal, and the through path is determined as the target transmission path under the condition that the filtering is determined not to be needed based on the spurious level, so that the power consumption of the system is reduced, and the insertion loss of the filtering introduced in the radio frequency path is avoided.

And S1048, determining a filtering path as a target transmission path according to the working frequency band of the radio frequency system under the condition that filtering is needed.

In one example, in a case where filtering is required, a target filtering frequency band is determined according to an operating frequency band of a radio frequency system, and a filtering path corresponding to the target filtering frequency band is determined as a target transmission path. For example, the target filter band is a band outside the operating band of the radio frequency system. For example, the target filtering band is a band of higher harmonics generated by the radio frequency system in the operating band.

In one example, in a case that filtering is required, communication systems of other communication networks existing in a surrounding environment are obtained, and a target filtering frequency band is determined according to a working frequency band of a radio frequency system and communication systems of the other communication networks, where the target filtering frequency band is a frequency band corresponding to a harmonic that is most likely to affect the other communication networks existing in the surrounding environment in the working frequency band of the radio frequency system.

The following describes an embodiment of the transmission control method by using an example: the spurious level of the radio frequency system is related to the transmit power of the radio frequency system. In most cases, the rf system is not operating at maximum power. For example, the maximum transmission power of the rf chip is 20dbm, and in practical use, if the rf system is closer to the gateway when networking, the rf system may only need 5dbm of transmission power to have a good connection rate with the gateway. Assuming that the spur level test is not satisfactory for the rf system if it is operating at maximum power, filtering is required, but in practice with a transmit power of 5dbm, the spur level is perfectly standard. By utilizing the embodiment of the disclosure, when the transmitting power of the radio frequency system is 5dbm, the through path is selected, so that the insertion loss caused by introducing filtering is avoided, the power consumption of the whole machine is not increased, and the test for the heat dissipation of the system is not brought. If the spurious level is out of limits when the transmitted power of the rf system is 15dbm, in practical use, the rf system will read the ADR command to enter a filtering mode and switch to an appropriate filtering path when the ADR command adjusts the power to 15 dbm.

In the embodiment of the disclosure, based on the ADR function of the radio frequency system itself, the transmission path is adaptively switched between the through path and the at least one filtering path by using the rate adaptive control signal, so that the power consumption of the radio frequency system is reduced under the condition of meeting the control requirement of the spurious level.

By using the transmission control method provided by the embodiment of the disclosure, the balance between power consumption and communication rate of the radio frequency system can be achieved, and the maximization of network capacity and the improvement of the service life of low-power-consumption equipment are facilitated.

The transmission control method provided by the embodiment of the disclosure can support the arrangement of a plurality of filtering paths respectively corresponding to different filtering requirements, thereby increasing the flexibility of the design of the radio frequency system and facilitating the compatibility of the radio frequency system and other communication networks.

In one example, the method further includes steps S202-S208.

Step S202, acquiring the transmitting power of the radio frequency system from the rate adaptive control signal.

And step S204, determining that a preset event occurs in the radio frequency system under the condition that the transmitting power of the radio frequency system is greater than or equal to the preset power.

And step S206, under the condition that the duration of the preset event exceeds the preset duration, determining that the communication link of the radio frequency system is abnormal, controlling the radio frequency system to stop transmitting and storing data to be transmitted into a storage area.

And step S208, after the communication link of the radio frequency system is recovered to be normal, controlling the radio frequency system to transmit the data stored in the storage area.

If the radio frequency system is detected to be continuously transmitted at the maximum power through the rate self-adaptive control signal, that is, the situation that the duration of a preset event exceeds the preset duration occurs, it is indicated that the communication link state of the radio frequency system is relatively bad, and may be caused to be too far away from the gateway or be interfered by stray, at this time, the data to be transmitted can be temporarily stored in a register, and the temporarily stored data is transmitted after the communication link of the radio frequency system is recovered to be normal.

In one example, after the communication link of the radio frequency system is determined to be abnormal, the radio frequency system is controlled to transmit a test signal at a transmission power less than the maximum power according to a preset time interval so as to test whether the communication link of the radio frequency system is recovered to be normal.

In one example, when it is determined that the communication link of the radio frequency system is abnormal, a notification is sent to a manager to prompt the manager to detect whether the devices such as the radio frequency system and the gateway are normal, so that the network fault is eliminated.

In one example, the radio frequency system is a radio frequency system based on the LoRa technology. The long Range radio technology is a long-distance radio transmission scheme, and has the characteristics of long distance, low power consumption, multiple nodes and low cost. The LoRa technology has the greatest characteristic that the distance of transmission is longer than that of transmission in other wireless modes under the same power consumption condition, the unification of low power consumption and long distance is realized, and the distance is enlarged by 3-5 times compared with the traditional wireless radio frequency communication distance under the same power consumption condition. Currently, the LoRa mainly operates in global free frequency bands including 433, 868, 915MHz, and the like. Rate Adaptation (ADR) is one of the core functions of the LoRa technique. In a radio frequency system based on the LoRa technology, after the ADR function is started, the server can take over the communication rate and the transmitting power of each terminal, so that the power consumption of the terminal is optimal, the communication rate is highest, and the maximization of the network capacity and the improvement of the service life of the low-power terminal are realized. In short, after the ADR function is started, a terminal which is closer to the gateway can use higher-speed communication, the radio frequency transmission time delay is short, the power consumption is low, and the occupied channel amount is small. The terminal far away from the gateway uses a lower speed for communication, the radio frequency transmission time delay is long, the power consumption is high, the occupied channel amount is large, but the communication quality can be guaranteed. The transmission control method of the radio frequency signal provided by the embodiment of the disclosure is suitable for a radio frequency system based on an LoRa technology, and meets the pursuit of users for long distance, low power consumption, multiple nodes and low cost.

Referring to fig. 3, a radio frequency system provided by the embodiment of the present disclosure is explained.

The radio frequency system comprises a radio frequency circuit, an antenna, a control module, a plurality of channel modules, a first multi-channel selection switch and a second multi-channel selection switch.

The plurality of channel modules includes a pass-through module and at least one filtering module.

The first end of the first multi-channel selection switch is connected with the radio frequency circuit, and the plurality of second ends of the first multi-channel selection switch are connected with the first ends of the plurality of channel modules in a one-to-one correspondence mode.

The first end of the second multi-channel selection switch is connected with the antenna, and a plurality of second ends of the second multi-channel selection switch are correspondingly connected with the second ends of the plurality of channel modules one by one.

The control module is used for determining a target channel module in the plurality of channel modules according to the rate self-adaptive control signal of the radio frequency system, and controlling the first multichannel selection switch and the second multichannel selection switch to conduct the target channel module so as to enable the radio frequency circuit and the antenna to transmit radio frequency signals through the target channel module.

In one example, determining a target channel module among a plurality of channel modules based on a rate adaptive control signal of a radio frequency system includes: and acquiring the transmitting power of the radio frequency system and the communication rate of the radio frequency system from the rate adaptive control signal. And determining whether filtering is needed or not according to the transmitting power of the radio frequency system and the communication rate of the radio frequency system. And determining the direct-through module as a target channel module under the condition that the filtering is not needed. And under the condition that filtering is needed, determining a filtering module as a target channel module according to the working frequency band of the radio frequency system.

In one example, determining whether filtering is required based on a transmit power of the radio frequency system and a communication rate of the radio frequency system comprises: and finding out the spurious level of the radio frequency system in a pre-established mapping relation table according to the transmitting power of the radio frequency system and the communication rate of the radio frequency system, wherein the mapping relation table stores the corresponding relation between the combination of the transmitting power and the communication rate and the spurious level. And determining whether filtering is needed according to the spurious level of the radio frequency system.

In one example, the control module is further configured to: and acquiring the transmitting power of the radio frequency system from the rate adaptive control signal. And determining that a preset event occurs in the radio frequency system under the condition that the transmitting power of the radio frequency system is greater than or equal to the preset power. And under the condition that the duration of the preset event exceeds the preset duration, determining that a communication link of the radio frequency system is abnormal, controlling the radio frequency system to stop transmitting and storing data to be transmitted into a storage area. And after the communication link of the radio frequency system is recovered to be normal, controlling the radio frequency system to transmit the data stored in the storage area.

In one example, the radio frequency system is a radio frequency system based on the LoRa technology.

Referring to fig. 4, an embodiment of the present disclosure provides a transmission control apparatus for radio frequency signals. The transmission control device 30 comprises a processor 31 and a memory 32, the memory 32 storing computer instructions which, when executed by the processor 31, implement the steps of any of the method embodiments described above.

The disclosed embodiments also provide a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of any of the preceding method embodiments.

The embodiments in the disclosure are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the device and apparatus embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference may be made to some descriptions of the method embodiments for relevant points.

The foregoing description of specific embodiments of the present disclosure has been described. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

Embodiments of the present disclosure may be systems, methods, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement aspects of embodiments of the disclosure.

The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.

The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.

The computer program instructions for carrying out operations for embodiments of the present disclosure may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry may execute computer-readable program instructions to implement aspects of embodiments of the present disclosure by utilizing state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).

Various aspects of embodiments of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, by software, and by a combination of software and hardware are equivalent.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A transmission control method of radio frequency signals is applied to a radio frequency system, and is characterized in that the radio frequency system comprises a radio frequency circuit and an antenna, a plurality of transmission paths are arranged between the radio frequency circuit and the antenna, and the transmission paths comprise a through path and at least one filtering path; the method comprises the following steps:

acquiring a rate self-adaptive control signal of the radio frequency system;

2. The method of claim 1, wherein determining a target transmission path among the plurality of transmission paths based on the rate adaptive control signal comprises:

3. The method of claim 2, wherein determining a target transmission path among the plurality of transmission paths based on the rate adaptive control signal further comprises:

4. The method of claim 2, wherein the determining whether filtering is required according to the transmission power of the radio frequency system and the communication rate of the radio frequency system comprises:

5. The method of claim 1, further comprising:

6. A radio frequency system is characterized by comprising a radio frequency circuit, an antenna, a control module, a plurality of channel modules, a first multichannel selection switch and a second multichannel selection switch;

7. The radio frequency system according to claim 6, wherein the determining a target channel module among a plurality of channel modules according to the rate adaptive control signal of the radio frequency system comprises:

8. The rf system of claim 7, wherein the determining whether filtering is required according to the transmit power of the rf system and the communication rate of the rf system comprises:

9. The radio frequency system of claim 6, wherein the control module is further configured to:

10. An apparatus for controlling transmission of radio frequency signals, comprising a processor and a memory, the memory storing computer instructions which, when executed by the processor, implement the steps of the method for controlling transmission of radio frequency signals according to any one of claims 1 to 5.