A microwave frequency sub-segment configuration method, microwave transceiver and system

Abstract

The embodiment of the present application discloses a microwave frequency sub-segment configuration method, a microwave transceiver and a system. A frequency query instruction is sent to an RFID identification module through a microprocessor; after receiving the frequency query instruction, the RFID identification module radiates a radio frequency signal of a fixed frequency through the first antenna; the RFID frequency tag is activated after receiving the radio frequency signal, and radiates a carrier signal through the second antenna; when the RFID identification module receives the carrier signal normally, the RFID identification module parses the carrier signal to obtain frequency information, and sends the frequency information to the microprocessor; the microprocessor compares the frequency information with the initial frequency range queried from the non-volatile memory, and when it is confirmed that the frequency information belongs to the initial frequency range, the operating frequency range is set according to the frequency information. The above technical means can be used to configure different operating frequency ranges by simply replacing the duplexer, which is highly flexible, convenient and efficient, and also reduces the cost of changing the frequency range.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of microwave communication technology, and in particular to a microwave frequency sub-segment configuration method, a microwave transceiver, and a system. Background Art

[0002] The traditional microwave communication system consists of an indoor digital unit, an intermediate frequency cable, a microwave transceiver and an antenna. In order to divide the frequency range used by the microwave transceiver, a duplexer is built into the microwave transceiver. The frequency range of the duplexer corresponds to the frequency range initialized by the microwave transceiver. The frequency range cannot be modified after leaving the factory and can only be used within the initial frequency range.

[0003] However, with the widespread use of microwave communications, the number of base stations has increased, and network expansion and adjustment have emerged. Since the frequency range of microwave transceivers is fixed when they leave the factory, if the frequency needs to be adjusted, the microwave transceiver can only be replaced, which has high replacement costs, poor flexibility, and low adjustment efficiency. Summary of the invention

[0004] The embodiments of the present application provide a microwave frequency sub-segment configuration method, a microwave transceiver, and a system, which solve the problem that the microwave transceiver needs to be directly replaced due to frequency adjustment, the replacement cost is high, the flexibility is poor, and the adjustment efficiency is low. It is possible to configure different operating frequency ranges by simply replacing the duplexer, which is highly flexible, convenient and efficient, and also reduces the cost of changing the frequency range.

[0005] In a first aspect, an embodiment of the present application provides a microwave frequency sub-segment configuration method, which is applied to the microwave transceiver described in the embodiment of the present application, and the method includes:

[0006] The microprocessor sends a frequency query instruction to the RFID identification module;

[0007] After receiving the frequency query instruction, the RFID identification module radiates a radio frequency signal of a fixed frequency through the first antenna;

[0008] The RFID frequency tag is activated after receiving the radio frequency signal, and radiates a carrier signal externally through the second antenna, wherein the carrier signal includes frequency information;

[0009] When the RFID identification module receives the carrier signal normally, the RFID identification module analyzes the carrier signal to obtain the frequency information, and sends the frequency information to the microprocessor;

[0010] After receiving the frequency information, the microprocessor compares the frequency information with the initial frequency range queried from the non-volatile memory;

[0011] When the microprocessor confirms that the frequency information belongs to the initial frequency range, the operating frequency range is set according to the frequency information.

[0012] Optionally, the RFID identification module further includes an RFID chip, a low-pass filter and a matching network;

[0013] The parsing of the carrier signal to obtain the frequency information specifically includes:

[0014] The RFID chip receives the carrier signal that passes through the matching network and the low-pass filter in sequence, and detects, demodulates and decodes the carrier signal to obtain the frequency information.

[0015] Optionally, the frequency information includes transmitting frequency information and receiving frequency information.

[0016] Optionally, the RFID frequency tag is activated after receiving the radio frequency signal, and radiates a carrier signal externally through the second antenna, wherein after the carrier signal includes frequency information, the method further includes:

[0017] When the RFID identification module cannot receive the carrier signal, the RFID identification module sends an abnormal message to the microprocessor;

[0018] After receiving the abnormal message, the microprocessor queries the initial frequency range from the non-volatile memory and sets the initial frequency range as the operating frequency range.

[0019] Optionally, after comparing the frequency information with the frequency range queried from the non-volatile memory, the method further includes:

[0020] When the microprocessor confirms that the frequency information does not fall within the initial frequency range, it outputs warning information.

[0021] Optionally, before the microprocessor sends the frequency query instruction to the RFID identification module, the method further includes:

[0022] The microprocessor stores the received initial frequency range in the non-volatile memory, wherein the initial frequency range includes a transmitting frequency range and a receiving frequency range.

[0023] In a second aspect, an embodiment of the present application provides a microwave transceiver, comprising a shell, a radio frequency unit and a duplexer, wherein the radio frequency unit and the duplexer are both detachably connected to the shell, and a first waveguide port of the radio frequency unit abuts against a second waveguide port of the duplexer; the radio frequency unit comprises a microprocessor, a non-volatile memory and an RFID identification module, and the duplexer is provided with an RFID frequency tag, wherein the RFID identification module comprises a first antenna, the RFID frequency tag comprises a second antenna, and the RFID frequency tag records frequency information characterizing the operating frequency range of the duplexer.

[0024] Optionally, the RFID identification module further includes an RFID chip, a low-pass filter and a matching network.

[0025] In a third aspect, an embodiment of the present application provides a microwave communication system, comprising an indoor digital unit, an intermediate frequency cable, an antenna, and the microwave transceiver described in the embodiment of the present application, wherein the indoor digital unit is connected to the microwave transceiver via an intermediate frequency cable, and the antenna is connected to the microwave transceiver.

[0026] Optionally, the indoor digital unit includes a first indoor digital unit and a second indoor digital unit, the intermediate frequency cable includes a first intermediate frequency cable and a second intermediate frequency cable, the antenna includes a third antenna and a fourth antenna, and the microwave transceiver includes a first microwave transceiver and a second microwave transceiver; the first indoor digital unit is connected to the first microwave transceiver through the first intermediate frequency cable, and the third antenna is connected to the first microwave transceiver; the second indoor digital unit is connected to the second microwave transceiver through the second intermediate frequency cable, and the fourth antenna is connected to the second microwave transceiver.

[0027] In the embodiment of the present application, the microprocessor sends a frequency query instruction to the RFID identification module; after receiving the frequency query instruction, the RFID identification module radiates a radio frequency signal of a fixed frequency through the first antenna; after receiving the radio frequency signal, the RFID frequency tag is activated and radiates a carrier signal through the second antenna, wherein the carrier signal includes frequency information; when the RFID identification module normally receives the carrier signal, the RFID identification module parses the carrier signal to obtain frequency information and sends the frequency information to the microprocessor; after receiving the frequency information, the microprocessor compares the frequency information with the initial frequency range queried from the non-volatile memory, and sets the working frequency range according to the frequency information when confirming that the frequency information belongs to the initial frequency range. By adopting the above technical means, the RF unit and the duplexer are separated independently to realize the replaceability of the duplexer, and the frequency sub-segment of the duplexer with the RFID frequency tag is identified by the built-in RFID identification module of the RF unit, and the identification result is used as the working frequency range of the RF unit, so that different working frequency ranges can be configured by simply replacing the duplexer, which is highly flexible, convenient and efficient, and also reduces the cost of changing the frequency range. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a microwave transceiver provided in an embodiment of the present application;

[0029] Figure 2 is a flow chart of a microwave frequency sub-segment configuration method provided in an embodiment of the present application;

[0030] Figure 3 is a flow chart of another microwave frequency sub-segment configuration method provided in an embodiment of the present application;

[0031] Figure 4 is a flow chart of another microwave frequency sub-segment configuration method provided in an embodiment of the present application;

[0032] Figure 5 is a flow chart of another microwave frequency sub-segment configuration method provided in an embodiment of the present application;

[0033] Figure 6 It is a structural schematic diagram of a microwave communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the convenience of description, only the part related to the present application but not all the contents are shown in the accompanying drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow chart describes each operation (or step) as a sequential process, many of the operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. The process can be terminated when its operation is completed, but it can also have additional steps not included in the accompanying drawings. The process can correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.

[0035] Traditional microwave communication systems consist of indoor digital units, intermediate frequency cables, microwave transceivers, and antennas. In order to divide the frequency range used by the microwave transceiver, a duplexer is built into the microwave transceiver. The frequency range of the duplexer corresponds to the frequency range of the microwave transceiver initialization. The frequency range cannot be modified after leaving the factory and can only be used within the initial frequency range. However, with the widespread use of microwave communications, the number of base station constructions has increased, and network expansion and adjustment have occurred. Since the frequency range of the microwave transceiver is fixed when it leaves the factory, if the frequency needs to be adjusted, the microwave transceiver can only be replaced, which has high replacement costs, poor flexibility, and low adjustment efficiency.

[0036] Based on this, the embodiments of the present application provide a microwave frequency sub-segment configuration method, a microwave transceiver and a system, which solve the problem that the microwave transceiver needs to be directly replaced due to frequency adjustment, the replacement cost is high, the flexibility is poor, and the adjustment efficiency is low. It realizes that different operating frequency ranges can be configured by simply replacing the duplexer, which is highly flexible, convenient and efficient, and also reduces the cost of changing the frequency range.

[0037] Figure 1 A schematic diagram of the structure of a microwave transceiver 100 provided in an embodiment of the present application is given. Figure 1The microwave transceiver 100 includes a housing 110, a radio frequency unit 120 and a duplexer 130. The radio frequency unit 120 and the duplexer 130 are both detachably connected to the housing 110. The first waveguide port 121 of the radio frequency unit 120 abuts against the second waveguide port 131 of the duplexer 130. The radio frequency unit 120 includes a microprocessor 122, a non-volatile memory 123 and an RFID identification module 124. The duplexer 130 is provided with an RFID frequency tag 132, wherein the RFID identification module 124 includes a first antenna 1241, and the RFID frequency tag 132 includes a second antenna 1321. The RFID frequency tag 132 records frequency information representing the operating frequency range of the duplexer 130.

[0038] It is worth noting that the RF unit 120 and the duplexer 130 are both detachably connected to the housing, wherein the detachable connection may be a snap-on fixed connection or a screw-bolt fixed connection, and the embodiment of the present application does not impose any limitation on this. In addition, the RF unit also includes a receiving link and a transmitting link, the first waveguide port 121 of the RF unit 120 includes a first receiving waveguide port and a first transmitting waveguide port, the microprocessor 122 is connected to the receiving waveguide port through the receiving link, the microprocessor 122 is connected to the transmitting waveguide port through the transmitting link, and the second waveguide port 131 of the duplexer 130 includes a second receiving waveguide port and a second transmitting waveguide port, wherein the first receiving waveguide port abuts the second receiving waveguide port, and the first transmitting waveguide port abuts the second transmitting waveguide port. It can be understood that the RF unit 120 and the duplexer 130 are equivalent to separate settings on the housing, and the duplexer 130 can be disassembled and installed without affecting the RF unit 120. In addition, the built-in RFID identification module 124 of the radio frequency unit 120 and the RFID frequency tag 132 set in the duplexer are set based on the RFID (Radio Frequency IDentification) technology. RFID is a wireless communication technology that can identify specific targets and read and write related data through radio signals without the need to establish mechanical or optical contact between the identification system and the specific target. The RFID frequency tag 132 set in the duplexer in the embodiment of the present application is a passive tag and needs to obtain energy from the electromagnetic field emitted by the RFID identification module 124. When the RFID frequency tag 132 enters the working range of the RFID identification module 124, non-contact information communication can be performed between the RFID frequency tag 132 and the RFID identification module 124. The RFID frequency tag 132 stores the frequency information supported by the duplexer 130, and the frequency information can be transmitted to the radio frequency unit 120 through RFID communication transmission to complete the working frequency range setting of the radio frequency unit 120.

[0039] Further, based on the above embodiment, the RFID identification module 124 further includes an RFID chip, a low-pass filter and a matching network. The matching network is provided to protect the signal transmitted between the first antenna and the low-pass filter at the hardware level and reduce signal attenuation.

[0040] As described above, by independently placing the RF unit and the duplexer, the replaceability of the duplexer is achieved, and by building an RFID identification module into the RF unit and setting an RFID frequency tag on the duplexer, automatic identification and configuration of the microwave frequency is achieved, which is highly flexible, convenient and efficient, and also reduces the cost of changing the frequency range.

[0041] Specifically, Figure 2 The flowchart of a microwave frequency sub-segment configuration method provided in the embodiment of the present application is provided. The microwave frequency sub-segment configuration method provided in the embodiment of the present application can be implemented by the microwave transceiver of the embodiment of the present application. The following description is made by taking the microwave transceiver as the main body of the microwave frequency sub-segment configuration method as an example. Figure 2 , the microwave frequency sub-segment configuration method specifically includes:

[0042] S210: The microprocessor sends a frequency query instruction to the RFID identification module.

[0043] Among them, the frequency information required for the radio frequency unit to configure the working frequency range is stored in the RFID frequency tag, and the microprocessor needs to obtain the frequency information in the RFID frequency tag through the RFID identification module. Therefore, after the microwave transceiver is powered on, the microprocessor sends a frequency query instruction to the RFID identification module, and the frequency query instruction is used to instruct the RFID identification module to communicate and transmit frequency information with the RFID frequency tag.

[0044] S220: After receiving the frequency query instruction, the RFID identification module radiates a radio frequency signal of a fixed frequency through the first antenna.

[0045] It is worth noting that the RFID frequency of the RFID identification module is divided into low frequency, high frequency, ultra-high frequency and microwave. Taking the high frequency RFID frequency of 13.56 MHz as an example, after power-on, the RFID identification module receives a frequency query instruction. In response to the frequency query instruction, the RFID identification module radiates a 13.56 MHz radio frequency signal to the outside through the first antenna.

[0046] S230. The RFID frequency tag is activated after receiving the radio frequency signal, and radiates a carrier signal through the second antenna, wherein the carrier signal includes frequency information.

[0047] Among them, the RFID frequency tag is a passive tag. When the RFID identification module starts to radiate radio frequency signals and the RFID frequency tag is within its working range, the second antenna of the RFID frequency tag can generate an induced current after receiving the radio frequency signal, thereby activating the chip built into the RFID frequency tag. The chip will radiate the frequency information in the form of a carrier signal through the second antenna.

[0048] S240: When the RFID identification module receives the carrier signal normally, the RFID identification module analyzes the carrier signal to obtain frequency information, and sends the frequency information to the microprocessor.

[0049] It is worth noting that when the RFID frequency tag is within the working range of the RFID identification module and the RFID identification module functions normally, it can receive the carrier signal and further parse the carrier signal for frequency information, which can be used to set the working frequency range of the RF unit.

[0050] In one embodiment, based on the above embodiment, the RFID identification module further includes an RFID chip, a low-pass filter and a matching network. The carrier signal is parsed to obtain frequency information in step S240. The corresponding specific process is as follows:

[0051] The RFID chip receives the carrier signal that passes through the matching network and the low-pass filter in sequence, and detects, demodulates and decodes the carrier signal to obtain frequency information.

[0052] Among them, the frequency information includes the transmission frequency information and the receiving frequency information. The microwave transceiver can act as a transmitter or a receiver, so the frequency information includes the transmission frequency information and the receiving frequency information. After the microprocessor receives the frequency information, it can configure the transmission frequency information or the receiving frequency information according to the corresponding function settings. In this way, through the setting of the low-pass filter and the matching network, the received carrier signal can be better transmitted without distortion, ensuring the accuracy of the frequency information received by the microprocessor.

[0053] S250, after receiving the frequency information, the microprocessor compares the frequency information with the initial frequency range queried from the non-volatile memory.

[0054] S260: When the microprocessor confirms that the frequency information is within the initial frequency range, the operating frequency range is set according to the frequency information.

[0055] Among them, since the RF unit itself also has a supported operating frequency range, the normal use of the microwave transceiver can only be guaranteed when the frequency information representing the operating frequency range of the duplexer matches the operating frequency range supported by the RF unit. Therefore, the microprocessor needs to read the initial frequency range from the non-volatile memory, that is, the operating frequency range supported by the RF unit, compare the frequency information with the initial frequency range, and only when it is confirmed that the frequency information belongs to the initial frequency range will the frequency information be written into the internal RAM to complete the configuration of the microwave frequency sub-segment. In addition, when the RF unit is powered off, the frequency information stored in the internal RAM of the microprocessor will disappear. Therefore, after powering on again, the RF unit needs to obtain the frequency information from the RFID frequency tag again.

[0056] From the above, it can be seen that the embodiment of the present application realizes the replaceability of the duplexer by independently separating the RF unit and the duplexer, and identifies the frequency sub-segment of the duplexer with an RFID frequency tag through the RFID identification module built into the RF unit, and uses the identification result as the operating frequency range of the RF unit, so that different operating frequency ranges can be configured by simply replacing the duplexer, which is highly flexible, convenient and efficient, and also reduces the cost of changing the frequency range.

[0057] Figure 3 A flowchart of another microwave frequency sub-segment configuration method provided in an embodiment of the present application, referring to Figure 3 , based on the above embodiment, after step S230, the method further includes:

[0058] S270, when the RFID identification module cannot receive the carrier signal, the RFID identification module sends an abnormal message to the microprocessor;

[0059] S280: After receiving the abnormal message, the microprocessor queries the initial frequency range from the non-volatile memory and sets the initial frequency range as the operating frequency range.

[0060] It is worth noting that the RFID identification module cannot receive the carrier signal. It may be that the RFID frequency tag cannot be activated normally and radiates the carrier signal to the outside, or the first antenna of the RFID identification module cannot receive the carrier signal normally, etc., which will send an abnormal message to the microprocessor. Considering the situation that the RFID identification module cannot receive the carrier signal, the user can preset the initial frequency range in the non-volatile memory as a backup working frequency range, where the initial frequency range can refer to the common frequency range of the microwave transceiver. When the microprocessor receives the abnormal message and confirms that the frequency information cannot be obtained from the RFID frequency tag, it can query the initial frequency range from the non-volatile memory and set the initial frequency range as the working frequency range.

[0061] In this way, even if the frequency of the RFID frequency tag cannot be identified, the operating frequency range of the microwave transceiver can be set, and when the initial frequency range matches the frequency range of the duplexer, the normal function of the microwave transceiver can still be guaranteed.

[0062] Figure 4 A flowchart of another microwave frequency sub-segment configuration method provided in an embodiment of the present application, referring to Figure 4 , based on the above embodiment, after step S250, the method further includes:

[0063] S290: When the microprocessor confirms that the frequency information does not fall within the initial frequency range, it outputs a warning message.

[0064] Among them, since the RF unit has a supported operating frequency range, the duplexer also has a supported operating frequency range, the microwave transceiver can only work normally when the operating frequency range of the duplexer matches the operating frequency range of the RF unit. Therefore, if the duplexer installed in the microwave transceiver does not match the RF unit, the microprocessor should output a warning message to remind the user to replace the duplexer to ensure the normal use of the microwave transceiver.

[0065] Figure 5 A flowchart of another microwave frequency sub-segment configuration method provided in an embodiment of the present application, referring to Figure 5 , based on the above embodiment, after step S210, the method further includes:

[0066] S200: The microprocessor stores the received initial frequency range in a non-volatile memory, wherein the initial frequency range includes a transmitting frequency range and a receiving frequency range.

[0067] In this way, the user can store different initial frequency ranges in the non-volatile memory to set different operating frequency ranges for the radio frequency unit.

[0068] Figure 6 A schematic diagram of a microwave communication system 600 provided in an embodiment of the present application is shown in FIG. Figure 6 The microwave communication system 600 includes an indoor digital unit 610, an intermediate frequency cable 620, an antenna 630, and a microwave transceiver 100 provided in an embodiment of the present application. The indoor digital unit 610 is connected to the microwave transceiver 100 via the intermediate frequency cable 620, and the antenna 630 is connected to the microwave transceiver 100.

[0069] The microwave transceiver 100 in the microwave communication system 600 provided above can be used to execute the microwave frequency sub-segment configuration method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0070] Specifically, based on the foregoing embodiments, the indoor digital unit includes a first indoor digital unit and a second indoor digital unit, the intermediate frequency cable includes a first intermediate frequency cable and a second intermediate frequency cable, the antenna includes a third antenna and a fourth antenna, and the microwave transceiver includes a first microwave transceiver and a second microwave transceiver; the first indoor digital unit is connected to the first microwave transceiver through the first intermediate frequency cable, and the third antenna is connected to the first microwave transceiver; the second indoor digital unit is connected to the second microwave transceiver through the second intermediate frequency cable, and the fourth antenna is connected to the second microwave transceiver.

[0071] The microwave communication system provided in the above embodiments can execute the microwave frequency sub-segment configuration method provided in any embodiment of the present application. For technical details not described in detail in the above embodiments, please refer to the microwave frequency sub-segment configuration method provided in any embodiment of the present application.

[0072] It should be noted that the numbering of each step in this solution is only used to describe the overall design framework of this solution, and does not represent the necessary order of the steps. On the basis that the overall implementation process conforms to the overall design framework of this solution, it belongs to the protection scope of this solution, and the order of description in text form is not an exclusive limitation on the specific implementation process of this solution.

[0073] Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products.

[0074] Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the functions in the process. Figure 1 A process or multiple processes and / or boxes Figure 1These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer-readable memory produce a product including an instruction device, which implements the functions specified in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide for implementing the process in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0075] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory. The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0076] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0077] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A microwave transceiver, characterized in that: It includes a shell, a radio frequency unit and a duplexer, wherein the radio frequency unit and the duplexer are both detachably connected to the shell, and a first waveguide port of the radio frequency unit is abutted against a second waveguide port of the duplexer; the radio frequency unit includes a microprocessor, a non-volatile memory and an RFID identification module, and the duplexer is provided with an RFID frequency tag, wherein the RFID identification module includes a first antenna, and the RFID frequency tag includes a second antenna, and the RFID frequency tag records frequency information representing the working frequency range of the duplexer, and the RFID frequency tag is a passive tag, which is used for contactless information communication with the RFID identification module to transmit the frequency information to the radio frequency unit, so as to complete the setting of the working frequency range of the radio frequency unit.

2. The microwave transceiver according to claim 1, characterized in that: The RFID identification module also includes an RFID chip, a low-pass filter and a matching network, wherein the input end of the matching network is used to receive a carrier signal, the output end of the matching network is connected to the input end of the low-pass filter, and the output end of the low-pass filter is connected to the input end of the RFID chip.

3. A microwave frequency sub-segment configuration method, characterized in that: Applied to the microwave transceiver according to claim 1 or 2, the method comprises: The microprocessor sends a frequency query instruction to the RFID identification module; After receiving the frequency query instruction, the RFID identification module radiates a radio frequency signal of a fixed frequency through the first antenna; The RFID frequency tag is activated after receiving the radio frequency signal, and radiates a carrier signal externally through the second antenna, wherein the carrier signal includes the frequency information; When the RFID identification module receives the carrier signal normally, the RFID identification module analyzes the carrier signal to obtain the frequency information, and sends the frequency information to the microprocessor; After receiving the frequency information, the microprocessor compares the frequency information with the initial frequency range queried from the non-volatile memory; When the microprocessor confirms that the frequency information belongs to the initial frequency range, the operating frequency range is set according to the frequency information.

4. The microwave frequency sub-segment configuration method according to claim 3, characterized in that: The RFID identification module also includes an RFID chip, a low-pass filter and a matching network; The parsing of the carrier signal to obtain the frequency information specifically includes: The RFID chip receives the carrier signal that passes through the matching network and the low-pass filter in sequence, and detects, demodulates and decodes the carrier signal to obtain the frequency information.

5. The microwave frequency sub-segment configuration method according to claim 3, characterized in that: The frequency information includes transmission frequency information and reception frequency information.

6. The microwave frequency sub-segment configuration method according to claim 3, characterized in that: The RFID frequency tag is activated after receiving the radio frequency signal, and radiates a carrier signal externally through the second antenna, wherein the carrier signal includes frequency information, and further includes: When the RFID identification module cannot receive the carrier signal, the RFID identification module sends an abnormal message to the microprocessor; After receiving the abnormal message, the microprocessor queries the initial frequency range from the non-volatile memory and sets the initial frequency range as the operating frequency range.

7. The microwave frequency sub-segment configuration method according to claim 3, characterized in that: After comparing the frequency information with the frequency range queried from the non-volatile memory, the method further includes: When the microprocessor confirms that the frequency information does not fall within the initial frequency range, it outputs warning information.

8. The microwave frequency sub-segment configuration method according to claim 3, characterized in that: Before the microprocessor sends a frequency query instruction to the RFID identification module, the method further includes: The microprocessor stores the received initial frequency range in the non-volatile memory, wherein the initial frequency range includes a transmitting frequency range and a receiving frequency range.

9. A microwave communication system, characterized in that: It comprises an indoor digital unit, an intermediate frequency cable, an antenna and the microwave transceiver as claimed in claim 1 or 2, wherein the indoor digital unit is connected to the microwave transceiver via the intermediate frequency cable, and the antenna is connected to the microwave transceiver.

10. The microwave communication system according to claim 9, characterized in that: The indoor digital unit includes a first indoor digital unit and a second indoor digital unit, the intermediate frequency cable includes a first intermediate frequency cable and a second intermediate frequency cable, the antenna includes a third antenna and a fourth antenna, and the microwave transceiver includes a first microwave transceiver and a second microwave transceiver; The first indoor digital unit is connected to the first microwave transceiver via a first intermediate frequency cable, and the third antenna is connected to the first microwave transceiver; The second indoor digital unit is connected to the second microwave transceiver via a second intermediate frequency cable, and the fourth antenna is connected to the second microwave transceiver.

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