CN113965239B - Radio frequency signal transmission control method and device and radio frequency system - Google Patents
Radio frequency signal transmission control method and device and radio frequency system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
- H04B7/0608—Antenna selection according to transmission parameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The disclosure relates to a transmission control method and device of radio frequency signals 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
Technical Field
The embodiment of the disclosure relates to the technical field of communication, in particular to a transmission control method and device of a radio frequency signal and a radio frequency system.
Background
In radio frequency communication technology, spurious interference is an important functional indicator for evaluating radio frequency systems. Spurious interference is interference caused by spurious radiation outside the frequency band of one radio frequency system falling within the receiving frequency band of another radio frequency system. The current method for solving the spurious interference is to serially connect filters in a radio frequency channel, but introducing the filters can additionally increase the insertion loss of the channel, thereby affecting the power consumption.
Disclosure of Invention
An object of the embodiments of the present disclosure is to provide a transmission control method and apparatus for a radio frequency signal, and a radio frequency system, which can reduce the influence on power consumption under the condition that the performance of spurious interference is satisfied.
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 from 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 self-adaptive control signal;
determining whether filtering is needed according to the transmitting power of the radio frequency system and the communication rate of the radio frequency system;
The pass-through path is determined to be the target transmission path without filtering.
Optionally, the determining a target transmission path from the plurality of transmission paths according to the rate adaptive control signal further includes:
and under the condition that filtering is required, determining one filtering path as a target transmission path according to the working frequency band of the radio frequency system.
Optionally, the determining whether filtering is needed according to the transmitting 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, the spurious level of the radio frequency system is found out 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 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;
under the condition that the transmitting power of the radio frequency system is larger than or equal to the preset power, determining that a preset event occurs in the radio frequency system;
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 multichannel selection switch and a second multichannel selection switch;
the plurality of channel modules comprise a pass-through module and at least one filtering module;
The first ends of the first multichannel selector switches are connected with the radio frequency circuit, and the second ends of the first multichannel selector switches are connected with the first ends of the plurality of channel modules in a one-to-one correspondence manner;
The first ends of the second multichannel selective switches are connected with the antennas, and the second ends of the second multichannel selective switches are connected with the second ends of the plurality of channel modules in a one-to-one correspondence manner;
The control module is used for determining a target channel module in a plurality of channel modules according to the rate self-adaptive control signal of the radio frequency system, and controlling the first multi-channel selection switch and the second multi-channel selection switch to conduct the target channel module so as to enable radio frequency signals to be transmitted between the radio frequency circuit and the antenna through the target channel module.
Optionally, the determining a target channel module from a plurality of channel modules according to the rate adaptive control signal of the radio frequency system includes:
Acquiring the transmitting power of the radio frequency system and the communication rate of the radio frequency system from the rate self-adaptive control signal;
determining whether filtering is needed according to the transmitting power of the radio frequency system and the communication rate of the radio frequency system;
Under the condition that filtering is not needed, the straight-through module is determined to be a target channel module;
and under the condition that filtering is required, determining one filtering module as a target channel module according to the working frequency band of the radio frequency system.
Optionally, the determining whether filtering is needed according to the transmitting 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, the spurious level of the radio frequency system is found out 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 according to the spurious level of the radio frequency system.
Optionally, the control module is further configured to:
acquiring the transmitting power of the radio frequency system from the rate self-adaptive control signal;
under the condition that the transmitting power of the radio frequency system is larger than or equal to the preset power, determining that a preset event occurs in the radio frequency system;
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 third aspect of the present disclosure, there is provided a transmission control apparatus of a radio frequency signal. The transmission control device of radio frequency signals comprises a processor and a memory, wherein the memory stores computer instructions which, when executed by the processor, implement the steps of the transmission control method of radio frequency signals according to any one of the first aspect of the present disclosure.
One beneficial effect of the embodiment of the disclosure is that, based on the rate adaptive control signal of the radio frequency system, the transmission path is adaptively switched between the through path and at least one filter path, so that the power consumption of the radio frequency system is reduced under the condition of meeting the spurious level control requirement.
Other features of the disclosed embodiments and their advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this 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 according to an embodiment of the disclosure;
FIG. 2 is a schematic diagram of a mapping table provided in an embodiment of the 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 device for radio frequency signals according to an embodiment of the 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, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one 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 specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Referring to fig. 1, a transmission control method of a radio frequency signal provided in an embodiment of the present disclosure will be 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 paths 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 which has no filtering function and allows radio frequency signals to pass through directly. The setting of the through passage can enable the radio frequency system to automatically select the filtering function when the filtering is not needed, thereby achieving the purposes of low power consumption, power saving and improving the compatibility of the system. In the case where there are multiple filter paths, the multiple filter paths correspond to different filter requirements, i.e., to different target filter bands. In the embodiment of the present disclosure, the target filtering frequency band may refer to a band that needs to be filtered out.
The transmission control method of the radio frequency signal comprises steps S102-S106.
Step S102, obtaining a rate self-adaptive control signal of the radio frequency system.
Rate adaptation (ADAPTIVE DATA RATE, ADR) is one of the functions of many radio frequency systems, and the rate adaptation 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.
Step S104, determining a target transmission path in a plurality of transmission paths according to the rate self-adaptive control signal.
And S106, controlling the radio frequency circuit and the antenna to transmit radio frequency signals through a target transmission channel.
In one example, step S104 may include steps S1042-S1048.
Step S1042, acquiring the transmitting power of the radio frequency system and the communication rate of the radio frequency system from the rate adaptive control signal.
Step S1044, determining whether filtering is needed according to the transmission power of the radio frequency system and the communication rate of the radio frequency system.
And searching the spurious level of the emergent frequency system in a pre-established mapping relation table according to the transmitting power and the communication rate obtained 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. Then, it is determined whether filtering is required based on the spurious level of the radio frequency system. Specifically, whether the spurious level meets the preset requirement is determined, the radio frequency system is determined not to need to be filtered under the condition that the spurious level meets the preset requirement, and the radio frequency system is determined to need to be filtered under the condition that the spurious level does not meet the preset requirement.
For a radio frequency system, a range of transmit powers may be capable of supporting 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 spurious level generated by the radio frequency system in the case of the combination is measured, so that a mapping relation table 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, namely, power B11 to power B12, power B13 to power B14, and power B15 to power B16. Assuming that the transmit power and communication rate obtained from the rate adaptive control signal corresponds to combination 2, the spurious level is C2. 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 be filtered 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 be filtered under the condition that the spurious level C2 is larger than or equal to the preset spurious level upper limit threshold.
Step S1046, determining the through path as the target transmission path in the case where filtering is not required.
In the embodiment of the disclosure, the spurious level can be read according to the rate self-adaptive control signal by utilizing a mode of pre-testing the spurious level to establish the mapping relation table, and the through channel is determined as the target transmission channel under the condition that the spurious level is determined to be unnecessary to be filtered, so that the system power consumption is reduced, and the insertion loss of the filtering in the radio frequency channel is avoided.
In step S1048, a filtering path is determined as a target transmission path according to the operating frequency band of the radio frequency system when filtering is required.
In one example, when filtering is required, a target filtering frequency band is determined according to an operating frequency band of the 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 filtering band is a band outside the operating band of the radio frequency system. For example, the target filtering frequency band is the frequency band of higher harmonics generated by the radio frequency system at that operating frequency band.
In one example, under the condition that filtering is required, the communication modes of other communication networks existing in the surrounding environment are acquired, and a target filtering frequency band is determined according to the working frequency band of the radio frequency system and the communication modes of other communication networks, wherein the target filtering frequency band is a wave band corresponding to a harmonic wave which is most likely to influence other communication networks existing in the surrounding environment under the working frequency band of the radio frequency system.
The above-described transmission control method embodiment will be described below with 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 radio frequency system is not at maximum operating power. For example, the maximum transmitting power of the radio frequency chip is 20dbm, and in the practical use process, if the radio frequency system is relatively close to the gateway when being distributed, the radio frequency system can have a good connection rate with the gateway by only needing transmitting power of 5 dbm. It is assumed that for this radio frequency system, if it is operating at maximum power, the spurious level test is not acceptable and requires filtering, but in actual operation, a transmit power of 5dbm is used, and the spurious level is fully standard. By utilizing the embodiment of the disclosure, when the transmitting power of the radio frequency system is 5dbm, the through passage is selected, so that the insertion loss caused by the introduction of filtering is avoided, the power consumption of the whole machine is not increased, and the heat dissipation of the system is not examined. If the spurious level is exceeded at 15dbm, then in actual use, when the ADR command adjusts the power to 15dbm, the rf system will read the ADR command into a filter mode and switch to the appropriate filter path.
In the embodiment of the disclosure, based on the ADR function of the radio frequency system, the transmission path is adaptively switched between the through path and at least one filtering path by utilizing the rate adaptive control signal, so that the power consumption of the radio frequency system is reduced under the condition of meeting the spurious level control requirement.
By using the transmission control method provided by the embodiment of the disclosure, the radio frequency system can be helped to achieve balance of power consumption and communication rate, and network capacity maximization and service life improvement of low-power-consumption equipment can be facilitated.
The transmission control method provided by the embodiment of the disclosure can support that a plurality of filtering paths are respectively corresponding to different filtering requirements, so that the flexibility of the design of the radio frequency system is improved, and the radio frequency system is convenient to be compatible with other communication networks.
In one example, the method further comprises steps S202-S208.
Step S202, the transmitting power of the radio frequency system is obtained from the rate self-adaptive control signal.
Step S204, under the condition that the transmitting power of the radio frequency system is larger than or equal to the preset power, determining that the radio frequency system has a preset event.
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 the 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, the radio frequency system is controlled to transmit the data stored in the storage area.
If the rate self-adaptive control signal detects that the radio frequency system is continuously transmitting at the maximum power, that is, the condition that the duration of the preset event exceeds the preset duration, the state of the communication link of the radio frequency system is bad, which may cause that the communication link is too far away from the gateway or suffers from stray interference, the data to be transmitted can be temporarily stored in the register at the moment, and the temporary data is transmitted after the communication link of the radio frequency system is recovered to be normal.
In one example, after determining that the communication link of the radio frequency system is abnormal, the radio frequency system is controlled to transmit a test signal at a transmission power less than the maximum power at a preset time interval to test whether the communication link of the radio frequency system is restored 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 the manager to prompt the manager to detect whether the equipment such as the radio frequency system and the gateway is normal, so as to eliminate network faults.
In one example, the radio frequency system is a LoRa technology based radio frequency system. LoRa (Long Range Radio) wireless technology is a long-distance wireless transmission scheme and has the characteristics of long distance, low power consumption, multiple nodes and low cost. The biggest characteristic of the LoRa technology is that the distance of the LoRa technology is farther than that of other wireless modes under the same power consumption condition, the low power consumption and the long distance are unified, and the LoRa technology is 3-5 times longer than that of the traditional wireless radio frequency communication under the same power consumption. Currently, loRa operates mainly in the global free frequency band, including 433, 868, 915MHz, etc. Rate adaptation (ADAPTIVE DATA RATE, ADR) is one of the core functions of the LoRa technology. In the 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 and the communication rate is highest, and the maximization of the network capacity and the promotion of the service life of the low-power terminal are realized. In short, after the ADR function is started, a terminal closer to the gateway can use higher-rate communication, the radio frequency transmission time delay is short, the power consumption is low, and the channel occupation amount is small. The terminal far away from the gateway uses lower rate communication, and has long radio frequency transmission time delay, high power consumption and large channel occupation amount, but can ensure communication quality. The transmission control method of the radio frequency signals is suitable for a radio frequency system based on the LoRa technology, and meets the pursuit of users for long-distance low power consumption, multiple nodes and low cost.
A radio frequency system provided by an embodiment of the present disclosure will be described with reference to fig. 3.
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 ends of the first multichannel selective switches are connected with the radio frequency circuit, and the second ends of the first multichannel selective switches are connected with the first ends of the channel modules in a one-to-one correspondence mode.
The first ends of the second multichannel selective switches are connected with the antennas, and the second ends of the second multichannel selective switches are connected with the second ends of the channel modules in a one-to-one correspondence mode.
The control module is used for determining a target channel module in the multiple channel modules according to the rate self-adaptive control signal of the radio frequency system, and controlling the first multi-channel selection switch and the second multi-channel selection switch to conduct the target channel module so as to enable radio frequency signals to be transmitted between the radio frequency circuit and the antenna through the target channel module.
In one example, determining a target channel module from 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 self-adaptive control signal. And determining whether filtering is needed according to the transmitting power of the radio frequency system and the communication rate of the radio frequency system. In the case that filtering is not required, the pass-through module is determined as the target channel module. And under the condition that filtering is required, 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 includes: and searching 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. Whether filtering is required is determined based on the spurious level of the radio frequency system.
In one example, the control module is further to: and acquiring the transmitting power of the radio frequency system from the rate self-adaptive control signal. And under the condition that the transmitting power of the radio frequency system is larger than or equal to the preset power, determining that a preset event occurs in the radio frequency system. And 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. After the communication link of the radio frequency system is recovered to be normal, the radio frequency system is controlled to transmit the data stored in the storage area.
In one example, the radio frequency system is a LoRa technology based radio frequency system.
Referring to fig. 4, an embodiment of the present disclosure provides a transmission control device for a radio frequency signal. The transmission control means 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 in any of the foregoing method embodiments.
The various embodiments in this disclosure are described in a progressive manner, and identical and similar parts of the various embodiments are all referred to each other, and each embodiment is mainly described as different from other embodiments. In particular, for the apparatus, device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, as relevant to see the section description of the method embodiments.
The foregoing has described certain embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can 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 are also possible or may be advantageous.
Embodiments of the present disclosure may be a system, method, and/or computer program product. 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 present disclosure.
The computer readable storage medium may be a tangible device that can hold and store instructions for use by an instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage 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: portable computer disks, hard disks, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static Random Access Memory (SRAM), portable compact disk read-only memory (CD-ROM), digital Versatile Disks (DVD), memory sticks, floppy disks, mechanical coding devices, punch cards or in-groove structures such as punch cards or grooves having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media, as used herein, are not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., optical pulses through fiber optic cables), or electrical signals transmitted through 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 over 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 transmissions, wireless transmissions, routers, firewalls, switches, gateway computers and/or edge servers. The network interface 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 performing the operations of 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 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 be executed 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 kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of embodiments of the present disclosure are implemented by personalizing electronic circuitry, such as programmable logic circuitry, field Programmable Gate Arrays (FPGAs), or Programmable Logic Arrays (PLAs), with state information of computer readable program instructions, which may execute the computer readable program instructions.
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 having the instructions stored therein includes 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 flowcharts 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, implementation by software, and implementation by a combination of software and hardware are all equivalent.
The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. The transmission control method of the radio frequency signal 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 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;
Controlling the radio frequency circuit and the antenna to transmit radio frequency signals through the target transmission channel so as to transmit radio frequency signals;
The determining a target transmission path from 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 self-adaptive control signal;
determining whether filtering is needed according to the transmitting power of the radio frequency system and the communication rate of the radio frequency system;
Under the condition that filtering is required, determining a target filtering frequency band according to the working frequency band of the radio frequency system and communication modes of other communication networks existing in the surrounding environment, and determining the filtering path corresponding to the target filtering frequency band as a target transmission path; the target filtering frequency band is a frequency band corresponding to a harmonic wave which causes the greatest influence on other communication networks existing in the surrounding environment under the working frequency band of the radio frequency system.
2. The method of claim 1, wherein said determining a target transmission path from among said plurality of transmission paths based on said rate adaptive control signal comprises:
The pass-through path is determined to be the target transmission path without filtering.
3. The method of claim 1, wherein determining whether filtering is required based on the transmit power of the radio frequency system and the communication rate of the radio frequency system comprises:
According to the transmitting power of the radio frequency system and the communication rate of the radio frequency system, the spurious level of the radio frequency system is found out 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 according to the spurious level of the radio frequency system.
4. The method according to claim 1, wherein the method further comprises:
acquiring the transmitting power of the radio frequency system from the rate self-adaptive control signal;
under the condition that the transmitting power of the radio frequency system is larger than or equal to the preset power, determining that a preset event occurs in the radio frequency system;
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.
5. The 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;
the plurality of channel modules comprise a pass-through module and at least one filtering module;
The first ends of the first multichannel selector switches are connected with the radio frequency circuit, and the second ends of the first multichannel selector switches are connected with the first ends of the plurality of channel modules in a one-to-one correspondence manner;
The first ends of the second multichannel selective switches are connected with the antennas, and the second ends of the second multichannel selective switches are connected with the second ends of the plurality of channel modules in a one-to-one correspondence manner;
the control module is used for determining a target channel module in a plurality of channel modules according to a rate self-adaptive control signal of the radio frequency system, and controlling the first multi-channel selection switch and the second multi-channel selection switch to conduct the target channel module so as to enable radio frequency signals to be transmitted between the radio frequency circuit and the antenna through the target channel module to transmit the radio frequency signals;
the determining a target channel module from a plurality of channel modules according to the rate adaptive control signal of the radio frequency system comprises:
Acquiring the transmitting power of the radio frequency system and the communication rate of the radio frequency system from the rate self-adaptive control signal;
determining whether filtering is needed according to the transmitting power of the radio frequency system and the communication rate of the radio frequency system;
Under the condition that filtering is required, determining a target filtering frequency band according to the working frequency band of the radio frequency system and communication modes of other communication networks existing in the surrounding environment, and determining a filtering path corresponding to the target filtering frequency band as a target transmission path; the target filtering frequency band is a frequency band corresponding to a harmonic wave which causes the greatest influence on other communication networks existing in the surrounding environment under the working frequency band of the radio frequency system.
6. The radio frequency system according to claim 5, 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:
the pass-through module is determined to be a target channel module without filtering.
7. The radio frequency system according to claim 5, wherein the determining whether filtering is required based on the transmit power of the radio frequency system and the communication rate of the radio frequency system comprises:
According to the transmitting power of the radio frequency system and the communication rate of the radio frequency system, the spurious level of the radio frequency system is found out 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 according to the spurious level of the radio frequency system.
8. The radio frequency system of claim 5, wherein the control module is further configured to:
acquiring the transmitting power of the radio frequency system from the rate self-adaptive control signal;
under the condition that the transmitting power of the radio frequency system is larger than or equal to the preset power, determining that a preset event occurs in the radio frequency system;
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.
9. A transmission control device for radio frequency signals, characterized by comprising a processor and a memory, said memory storing computer instructions which, when executed by said processor, implement the steps of the transmission control method for radio frequency signals according to any one of claims 1-4.
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