Microwave communication system and microwave apparatus

Abstract

Disclosed in the present application is a microwave communication system. The microwave communication system comprises a first apparatus and a second apparatus, wherein the first apparatus comprises a plurality of antennas, and the second apparatus comprises a plurality of antennas; the first apparatus is used for transmitting carrier signals of at least two frequency points by means of at least two antennas among the plurality of antennas, each antenna among the at least two antennas corresponding to a carrier signal of at least one frequency point; and the second apparatus is used for receiving the carrier signals of the at least two frequency points by means of the at least two antennas among the plurality of antennas, each of the at least two antennas receiving the carrier signals of the at least two frequency points. In the solution of the present application, since a transmitting end does not need to send all carrier signals by means of one antenna, there is no need for power rollback, or the carrier signals can be transmitted with a smaller amount of power backoff, thereby reducing the combination loss when a microwave communication system transmits the carrier signals, and improving the gain of the microwave communication system.

Description

Microwave communication system and microwave device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on August 30, 2023, with application number 202311111818.6 and application name “A Microwave Communication System and Microwave Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a microwave communication system and a microwave device. Background Art

[0003] As service demands in wireless communication systems grow, the capacity of long-distance microwave transmission services is also increasing, requiring more spectrum channels for service transmission. Currently, the carrier signals of various spectrum channels are combined and transmitted using a single antenna. The receiving end uses two antennas for reception, thus addressing the problem of multipath fading.

[0004] Although transmitting the combined carrier signal through one antenna and then receiving the combined signal through two antennas can solve the problem of multipath fading to a certain extent, combining multiple carrier signals during transmission will cause severe combining loss, thereby affecting the gain of the microwave communication system.

[0005] Summary of the Invention

[0006] The present application provides a microwave communication system and a microwave device for reducing the combining loss when the microwave communication system transmits a carrier signal and improving the gain of the microwave communication system.

[0007] In a first aspect, the present application provides a microwave communication system, comprising: a first device and a second device, the first device comprising multiple antennas, and the second device comprising multiple antennas; the first device is configured to transmit carrier signals of at least two frequencies through at least two of the multiple antennas, wherein each of the at least two antennas corresponds to a carrier signal of at least one frequency; the second device is configured to receive carrier signals of at least two frequencies through at least two of the multiple antennas, wherein each of the at least two antennas receives carrier signals of at least two frequencies.

[0008] In this application, the number of antennas can be expressed as "pieces" or "surfaces", and the two have the same meaning.

[0009] In this application, the first device and the second device are both microwave devices, and both the first device and the second device have the function of transmitting and receiving carrier signals. A microwave communication system can be a system composed of microwave devices communicating through microwaves, or it can be a communication system including microwave devices, access network devices, a core network, and terminal devices.

[0010] In the present application, sending carrier signals of at least two frequencies through at least two antennas can be one antenna sending a carrier signal of one frequency. If there are many carrier signals of different frequencies and fewer antennas, each antenna can also send two or more carrier signals of different frequencies.

[0011] In the present application, each antenna of the second device receives carrier signals of at least two frequencies, which means that each antenna of the second device receives all carrier signals sent by the first device.

[0012] This application provides a microwave communication system that, at the transmitting end, transmits carrier signals of at least two frequencies via at least two antennas. This eliminates the need for the transmitting end to transmit all carrier signals through a single antenna, eliminating the need for power backoff. Alternatively, carrier signals can be transmitted with a small power backoff, thereby reducing the combining loss during carrier signal transmission within the microwave communication system. Furthermore, each of the multiple antennas at the receiving end receives all carrier signals transmitted by the transmitting end. Each antenna receives the same signal, providing spatial diversity and improving the signal gain of the microwave communication system.

[0013] In one possible implementation, the first device and the second device also include multiple transceiver lines, at least two of the multiple transceiver lines share a combining unit, each of the multiple antennas corresponds to at least one transceiver line, each antenna is connected to the corresponding transceiver line, and the transceiver line is used to send a carrier signal to the antenna or to receive a carrier signal from the antenna; each transceiver line is used to send a carrier signal of one frequency, or to receive carrier signals of at least two frequencies; the combining unit is used to separate the carrier signals of at least two frequencies on the target transceiver line, and the target transceiver line is the transceiver line that shares the combining unit.

[0014] In this possible implementation, the transmission of carrier signals of different frequencies to the antenna is achieved through the transceiver line, and the separation of carrier signals of at least two frequencies on each transceiver line is achieved through the combining unit, which can reduce the combining loss in the transmission process and improve the signal gain in the receiving process.

[0015] In one possible implementation, each transceiver line includes a baseband, a shared combiner unit, a radio frequency transmitting unit, a receiving unit, and a transceiver control unit; the transceiver control unit is connected to the antenna corresponding to the transceiver line, the transceiver control unit is connected to the radio frequency transmitting unit and the receiving unit respectively, and the transceiver control unit is used to control the transceiver line for transmission or reception; the combiner unit is connected to the baseband and receiving unit on the shared transceiver lines respectively; and the baseband is connected to the radio frequency transmitting unit.

[0016] In this possible implementation, the transceiver control unit may be a switch or a filter, which may control the transceiver line to send a carrier signal to the antenna or the transceiver line to receive a carrier signal from the antenna.

[0017] In a possible implementation, in a single-polarization scenario, each antenna corresponds to a transceiver line of one polarization type.

[0018] In this possible implementation, one polarization type may be understood as not performing polarization processing on the carrier signal.

[0019] In a possible implementation, in a dual-polarization scenario, each antenna corresponds to two polarization types of transmit and receive lines.

[0020] In this possible implementation, the two polarization types may be polarization processing performed on the carrier signal in the horizontal direction and the vertical direction, or polarization processing performed on the carrier signal in the direction of +45° or -45°.

[0021] In one possible implementation, multiple transceiver lines are included in at least two line groups, where each line group includes at least two transceiver lines, and at least two transceiver lines in the same line group share a combining unit; the transceiver lines in the same line group are used to send carrier signals of different frequencies in the same polarization direction, or to receive carrier signals of at least two frequencies in the same polarization direction; the polarization directions of the carrier signals on the transceiver lines in different line groups are different.

[0022] In this possible implementation, carrier signals of different frequencies in the same polarization direction may be sent in the same line group, and carrier signals in different polarization directions may be sent in different line groups, thereby reducing the complexity of polarization processing of the carrier signal.

[0023] In one possible implementation, at least two line groups include a first line group and a second line group, the first line group includes a first transceiver line, and the second line group includes a second transceiver line; a cross-polarization interference canceller is provided between the baseband of the first transceiver line and the baseband of the second transceiver line; the antennas corresponding to the first transceiver line and the second transceiver line are configured with polarization separators, and the polarization separators are respectively connected to the first transceiver line and the second transceiver line through radio frequency cables, and the distance between the first transceiver line and the second transceiver line is greater than a first threshold; the carrier signals sent on the first transceiver line and the second transceiver line have the same frequency and different polarization directions; the carrier signals of at least two frequencies received on the first transceiver line and the second transceiver line have different polarization directions.

[0024] In this possible implementation, the distance between the first transceiver line and the second transceiver line is greater than a first threshold, which can reduce the multipath effect.

[0025] In one possible implementation, multiple transceiver lines are included in at least two line groups, where each line group includes at least two transceiver lines, and at least two transceiver lines in different line groups share a combining unit; different transceiver lines in the same line group are used to send carrier signals of the same frequency in different polarization directions, or to receive carrier signals of at least two frequencies in different polarization directions.

[0026] In this possible implementation, carrier signals with different polarization directions can be sent in the same line group, which can improve the degree of freedom of carrier signal transmission.

[0027] In one possible implementation, at least two line groups include a third line group and a fourth line group, the third line group includes a third transceiver line and a fourth transceiver line, and the fourth line group includes a fifth transceiver line; a cross-polarization interference canceller is provided between the baseband of the third transceiver line and the baseband of the fifth transceiver line; the antennas corresponding to the third transceiver line and the fourth transceiver line are configured with a polarization separator, the polarization separator is connected to the third transceiver line and the fourth transceiver line through a radio frequency cable, and the distance between the third transceiver line and the fourth transceiver line is less than a second threshold; the combiner unit in the third line group The element is connected to the baseband of the third transceiver line and the baseband of the fourth transceiver line, and is connected to the receiving unit of the third transceiver line and the receiving unit of the fifth transceiver line through an intermediate frequency cable or a digital cable; the combining unit in the third line group is used to: separate the carrier signals of at least two frequencies with the same polarization direction received by the third transceiver line and the carrier signals of at least two frequencies with the same polarization direction received by the fifth transceiver line, and the polarization direction of the carrier signals of at least two frequencies received by the third transceiver line is the same as the polarization direction of the carrier signals of at least two frequencies received by the fifth transceiver line.

[0028] In this possible implementation, the distance between the third transceiver line and the fourth transceiver line is less than the second threshold value, which can reduce the use of RF cables. The receiving unit of the third transceiver line and the receiving unit of the fifth transceiver line are connected through an intermediate frequency cable or a digital cable, and carrier signals of different polarization directions at the same frequency point can be transmitted to the same antenna without the need for mutual transmission of RF cables, thereby reducing the use of RF cables and reducing the insertion loss caused by the use of longer RF cables.

[0029] In one possible implementation, each transceiver line includes a radio frequency segment, an analog intermediate frequency segment, and a digital baseband segment, and the combining unit is located in the analog intermediate frequency segment or the digital baseband segment.

[0030] In this possible implementation, when the combining unit is located in the digital baseband segment, the difficulty of implementing the analog circuit can be reduced.

[0031] A second aspect of the present application provides a microwave device, comprising: multiple transceiver lines and multiple antennas, each of the multiple antennas corresponding to at least one transceiver line, each antenna being connected to the corresponding transceiver line, and the transceiver line being used to send a carrier signal to the antenna or to receive a carrier signal from the antenna; when sending a carrier signal, at least two of the multiple antennas send carrier signals of at least two frequencies, and each of the at least two antennas corresponds to a carrier signal of at least one frequency; when receiving a carrier signal, at least two of the multiple antennas receive carrier signals of at least two frequencies, wherein each of the at least two antennas receives carrier signals of at least two frequencies.

[0032] In one possible implementation, at least two of the multiple transceiver lines share a combining unit, each of the multiple antennas corresponds to at least one transceiver line, and each antenna is connected to the corresponding transceiver line; each transceiver line is used to send a carrier signal of one frequency, or to receive carrier signals of at least two frequencies; the combining unit is used to separate the carrier signals of at least two frequencies on the target transceiver line, and the target transceiver line is the transceiver line that shares the combining unit.

[0033] In one possible implementation, each transceiver line includes a baseband, a shared combiner unit, a radio frequency transmitting unit, a receiving unit, and a transceiver control unit; the transceiver control unit is connected to the antenna corresponding to the transceiver line, the transceiver control unit is connected to the radio frequency transmitting unit and the receiving unit respectively, and the transceiver control unit is used to control the transceiver line for transmission or reception; the combiner unit is connected to the baseband and receiving unit on the shared transceiver lines respectively; and the baseband is connected to the radio frequency transmitting unit.

[0034] In a possible implementation, in a single-polarization scenario, each antenna corresponds to a transceiver line of one polarization type.

[0035] In a possible implementation, in a dual-polarization scenario, each antenna corresponds to two polarization types of transmit and receive lines.

[0036] In one possible implementation, multiple transceiver lines are included in at least two line groups, where each line group includes at least two transceiver lines, and at least two transceiver lines in the same line group share a combining unit; the transceiver lines in the same line group are used to send carrier signals of different frequencies in the same polarization direction, or to receive carrier signals of at least two frequencies in the same polarization direction; the polarization directions of the carrier signals on the transceiver lines in different line groups are different.

[0037] In one possible implementation, at least two line groups include a first line group and a second line group, the first line group includes a first transceiver line, and the second line group includes a second transceiver line; a cross-polarization interference canceller is provided between the baseband of the first transceiver line and the baseband of the second transceiver line; the antennas corresponding to the first transceiver line and the second transceiver line are configured with polarization separators, and the polarization separators are respectively connected to the first transceiver line and the second transceiver line through radio frequency cables, and the distance between the first transceiver line and the second transceiver line is greater than a first threshold; the carrier signals sent on the first transceiver line and the second transceiver line have the same frequency and different polarization directions; the carrier signals of at least two frequencies received on the first transceiver line and the second transceiver line have different polarization directions.

[0038] In one possible implementation, multiple transceiver lines are included in at least two line groups, where each line group includes at least two transceiver lines, and at least two transceiver lines in different line groups share a combining unit; different transceiver lines in the same line group are used to send carrier signals of the same frequency in different polarization directions, or to receive carrier signals of at least two frequencies in different polarization directions.

[0039] In one possible implementation, at least two line groups include a third line group and a fourth line group, the third line group includes a third transceiver line and a fourth transceiver line, and the fourth line group includes a fifth transceiver line; a cross-polarization interference canceller is provided between the baseband of the third transceiver line and the baseband of the fifth transceiver line; the antennas corresponding to the third transceiver line and the fourth transceiver line are configured with a polarization separator, the polarization separator is connected to the third transceiver line and the fourth transceiver line through a radio frequency cable, and the distance between the third transceiver line and the fourth transceiver line is less than a second threshold; the combiner unit in the third line group The element is connected to the baseband of the third transceiver line and the baseband of the fourth transceiver line, and is connected to the receiving unit of the third transceiver line and the receiving unit of the fifth transceiver line through an intermediate frequency cable or a digital cable; the combining unit in the third line group is used to: separate the carrier signals of at least two frequencies with the same polarization direction received by the third transceiver line and the carrier signals of at least two frequencies with the same polarization direction received by the fifth transceiver line, and the polarization direction of the carrier signals of at least two frequencies received by the third transceiver line is the same as the polarization direction of the carrier signals of at least two frequencies received by the fifth transceiver line.

[0040] In one possible implementation, each transceiver line includes a radio frequency segment, an analog intermediate frequency segment, and a digital baseband segment, and the combining unit is located in the analog intermediate frequency segment or the digital baseband segment.

[0041] The technical effects of the second aspect of this application and any possible implementation of the second aspect can be understood by referring to the technical effects of the above-mentioned first aspect and any possible implementation of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] FIG1 is a schematic diagram of an architecture of a microwave communication system provided in an embodiment of the present application;

[0043] FIG2 is another schematic diagram of the architecture of a microwave communication system provided in an embodiment of the present application;

[0044] FIG3 is a schematic diagram of the structure of a microwave device and an architecture of a microwave communication system provided in an embodiment of the present application;

[0045] FIG4 is a schematic diagram of another architecture of a microwave device and a microwave communication system provided in an embodiment of the present application;

[0046] FIG5 is a schematic diagram of another architecture of the structure of a microwave device and a microwave communication system provided in an embodiment of the present application;

[0047] FIG6 is a schematic diagram of another architecture of the structure of the microwave device and the microwave communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The following describes embodiments of the present application in conjunction with the accompanying drawings. It should be understood that the embodiments described are merely a portion of the embodiments of the present application, and not all of them. Those skilled in the art will appreciate that, as technology advances and new scenarios emerge, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

[0049] The terms "first," "second," and the like in the specification and claims of this application and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0050] The embodiments of the present application provide a microwave communication system and a microwave device for reducing the combining loss when the microwave communication system transmits carrier signals and improving the gain of the microwave communication system.

[0051] To facilitate understanding of the embodiments of the present application, the following first briefly introduces the terms involved in the present application.

[0052] 1. Microwave communication: This refers to electromagnetic waves with a wavelength between 0.1 and 1 meter and a frequency range of 300 MHz to 3000 GHz, using microwaves as carrier waves to carry information and relay communications. Unlike modern communication networks like coaxial cable, fiber optic, and satellite, microwave communication uses microwaves directly as a medium, eliminating the need for solid media. Microwave transmission can be used whenever there is no direct line of sight between two points. Microwave communication boasts high capacity, high quality, and the ability to reach great distances.

[0053] 2. Antennas: Antennas are an essential component of mobile communications and play a crucial role. Positioned between the transceiver and the electromagnetic wave propagation space, they enable efficient energy transfer between the two. By designing the antenna's radiation characteristics, the spatial distribution of electromagnetic energy can be controlled, improving resource utilization and optimizing network quality. Due to the propagation environment, carrier signals can experience deep fading and Doppler shift, causing the received signal level to drop to near the thermal noise level. The phase also experiences random variations over time, resulting in degraded communication quality. Diversity reception techniques can mitigate the effects of fading, achieve diversity gain, and improve receiver sensitivity. Diversity antennas include spatial diversity, directional diversity, polarization diversity, and field component diversity.

[0054] 3. Spatial diversity (SD): SD, also known as antenna diversity, is achieved by using multiple receiving antennas. Diversity reception is performed using receiving antennas at different locations and is one of the forms of diversity used in wireless communications. The basic principle of diversity is to receive multiple copies of the same information through multiple channels (time, frequency, or space). Due to the different transmission characteristics of multiple channels, the fading of the multiple copies of the signal will be different. The receiver uses the information contained in the multiple copies to more accurately recover the original transmitted signal. Without diversity technology, the transmitter must transmit at a higher power under noise-limited conditions to ensure normal link connection in poor channel conditions.

[0055] 4. Baseband: Baseband is used to realize signal modulation and demodulation.

[0056] The microwave communication system and microwave device of the embodiments of the present application can be applied to various communication systems, such as: satellite communication, fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), mobile communication systems after 5G networks (for example, 6G mobile communication systems), vehicle to everything (V2X) communication systems, etc.

[0057] The microwave communication system provided in an embodiment of the present application includes: a first device and a second device, the first device includes multiple antennas, and the second device includes multiple antennas; the first device is used to send carrier signals of at least two frequencies through at least two antennas among the multiple antennas, and each antenna of the at least two antennas corresponds to a carrier signal of at least one frequency; the second device is used to receive carrier signals of at least two frequencies through at least two antennas among the multiple antennas, wherein each antenna of the at least two antennas receives carrier signals of at least two frequencies.

[0058] The first device and the second device are both microwave devices, and both have the function of transmitting and receiving carrier signals. The microwave communication system can be a system composed of microwave devices communicating via microwaves, or can be a communication system including microwave devices, access network devices, a core network, and terminal devices.

[0059] Among them, sending carrier signals of at least two frequencies through at least two antennas can be one antenna sending a carrier signal of one frequency. If there are many carrier signals of different frequencies and fewer antennas, each antenna can also send two or more carrier signals of different frequencies.

[0060] The fact that each antenna of the second device receives carrier signals of at least two frequencies means that each antenna of the second device receives all carrier signals sent by the first device.

[0061] The microwave communication system provided in the embodiments of the present application transmits carrier signals of at least two frequencies via at least two antennas at the transmitting end. This eliminates the need for the transmitting end to transmit all carrier signals via a single antenna, eliminating the need for power backoff or enabling carrier signals to be transmitted with minimal power backoff. This reduces the combining loss during carrier signal transmission within the microwave communication system. Furthermore, each of the multiple antennas at the receiving end receives all carrier signals transmitted by the transmitting end, and each antenna receives the same signal, providing spatial diversity and improving the gain of the microwave communication system.

[0062] The microwave communication system composed of microwave devices communicating with each other provided in the embodiment of the present application can be understood by referring to the example of Figure 1. In addition, the microwave communication system including microwave devices, access network devices, core networks, and terminal equipment can be understood by referring to the example of Figure 2.

[0063] As shown in Figure 1 , the microwave communication system includes a first device 100 and a second device 200 . The first device includes antennas 101 and 102 , and the second device includes antennas 201 and 202 . Figure 1 illustrates two antennas in each of the first and second devices 100 and 200 . In practice, both the first and second devices 100 and 200 may be equipped with more antennas. Both the first and second devices 100 and 200 are microwave devices.

[0064] Specifically, antenna 101 of first device 100 can transmit a carrier signal at a first frequency, and antenna 102 can transmit a carrier signal at a second frequency. Both carrier signals at these two frequencies are transmitted through space in the form of microwaves. Antenna 201 of second device 200 can receive carrier signals at the first frequency and carrier signals at the second frequency. Antenna 202 also receives carrier signals at the first frequency and carrier signals at the second frequency. The first frequency and the second frequency are different.

[0065] As shown in Figure 2 , the microwave communication system includes a first device 100, a second device 200, an access network device 210, a terminal device 220, and a core network 230. The first device includes antennas 101 and 102, and the second device includes antennas 201 and 202. Figure 2 illustrates two antennas for each of the first and second devices 100 and 200. In practice, both the first and second devices 100 and 200 may be equipped with more antennas. Both the first and second devices 100 and 200 are microwave devices. The first and second devices 100 and 200 can transmit data transmitted from the access network device 210 to the core network 230, and can also transmit data transmitted from the core network 230 to the access network device 210, using microwave communication.

[0066] Specifically, antenna 101 of first device 100 can transmit a carrier signal at a first frequency, and antenna 102 can transmit a carrier signal at a second frequency. Both carrier signals at these two frequencies are transmitted through space in the form of microwaves. Antenna 201 of second device 200 can receive carrier signals at the first frequency and carrier signals at the second frequency. Antenna 202 also receives carrier signals at the first frequency and carrier signals at the second frequency. The first frequency and the second frequency are different.

[0067] Of course, the microwave communication system may also be a communication system in other architectural forms. However, regardless of the form of the communication system, the communication process between the first device and the second device may be applicable to the corresponding communication system.

[0068] In the microwave communication system provided in the embodiment of the present application, the first device and the second device both further include multiple transceiver lines, at least two of the multiple transceiver lines share a combining unit, each of the multiple antennas corresponds to at least one transceiver line, each antenna is connected to the corresponding transceiver line, the transceiver line is used to send a carrier signal to the antenna or to receive a carrier signal from the antenna; each transceiver line is used to send a carrier signal of one frequency point, or to receive carrier signals of at least two frequencies; the combining unit is used to separate the carrier signals of at least two frequencies on the target transceiver line, and the target transceiver line is the transceiver line that shares the combining unit.

[0069] Among them, each transceiver line includes a baseband, a shared combining unit, a radio frequency transmitting unit, a receiving unit and a transceiver control unit; the transceiver control unit is connected to the antenna corresponding to the transceiver line, and the transceiver control unit is connected to the radio frequency transmitting unit and the receiving unit respectively, and the transceiver control unit is used to control the transceiver line for sending or receiving; the combining unit is respectively connected to the baseband and the receiving unit on the shared transceiver lines; the baseband is connected to the radio frequency transmitting unit.

[0070] The transceiver control unit may be a switch or a filter, which may control the transceiver line to send a carrier signal to the antenna or the transceiver line to receive a carrier signal from the antenna.

[0071] The structures of the first device and the second device as microwave devices, and the communication process between the first device and the second device can be understood by referring to FIG. 3 .

[0072] As shown in Figure 3, the microwave communication system includes a first device 100 and a second device 200. The first device 100 includes antennas 101 and 102, as well as transceiver lines 103 and 104, wherein transceiver lines 103 and 104 share a combiner unit 105. In the architecture shown in Figure 3, antenna 101 corresponds to transceiver line 103, and antenna 102 corresponds to transceiver line 104. The second device 200 includes antennas 201 and 202, as well as transceiver lines 203 and 204, wherein transceiver lines 203 and 204 share a combiner unit 205. In the architecture shown in Figure 3, antenna 201 corresponds to transceiver line 203, and antenna 202 corresponds to transceiver line 204.

[0073] Among them, the transceiver line 103 includes a baseband 1031, a shared combining unit 105, a radio frequency transmitting unit 1032, a receiving unit 1033 and a transceiver control unit 1034. The baseband 1031 is connected to the combining unit 105 and the radio frequency transmitting unit 1032 respectively, the combining unit 105 is connected to the receiving unit 1033, the receiving unit 1033 is connected to the transceiver control unit 1034, the radio frequency transmitting unit 1032 is also connected to the transceiver control unit 1034, and the transceiver control unit 1034 is connected to the antenna 101.

[0074] The transceiver line 104 includes a baseband 1041, a shared combiner unit 105, a radio frequency transmitting unit 1042, a receiving unit 1043 and a transceiver control unit 1044. The baseband 1041 is connected to the combiner unit 105 and the radio frequency transmitting unit 1042 respectively, the combiner unit 105 is connected to the receiving unit 1043, the receiving unit 1043 is connected to the transceiver control unit 1044, the radio frequency transmitting unit 1042 is also connected to the transceiver control unit 1044, and the transceiver control unit 1044 is connected to the antenna 102.

[0075] The transceiver line 203 includes a baseband 2031, a shared combiner unit 205, a radio frequency transmitting unit 2032, a receiving unit 2033 and a transceiver control unit 2034. The baseband 2031 is connected to the combiner unit 205 and the radio frequency transmitting unit 2032 respectively, the combiner unit 205 is connected to the receiving unit 2033, the receiving unit 2033 is connected to the transceiver control unit 2034, the radio frequency transmitting unit 2032 is also connected to the transceiver control unit 2034, and the transceiver control unit 2034 is connected to the antenna 201.

[0076] The transceiver line 204 includes a baseband 2041, a shared combiner unit 205, a radio frequency transmitting unit 2042, a receiving unit 2043 and a transceiver control unit 2044. The baseband 2041 is connected to the combiner unit 205 and the radio frequency transmitting unit 2042 respectively, the combiner unit 205 is connected to the receiving unit 2043, the receiving unit 2043 is connected to the transceiver control unit 2044, the radio frequency transmitting unit 2042 is also connected to the transceiver control unit 2044, and the transceiver control unit 2044 is connected to the antenna 202.

[0077] The transceiver circuit 103 can transmit a carrier signal 301 of a first frequency via the antenna 101, and the transceiver circuit 104 can transmit a carrier signal 302 of a second frequency via the antenna 102. Accordingly, the antenna 201 can receive the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency, and the antenna 202 can also receive the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency.

[0078] The process of transmitting the carrier signal 301 of the first frequency point and the carrier signal 302 of the second frequency point from the first device 100 to the second device 200 may be as follows:

[0079] The baseband 1031 modulates the carrier signal 301 of the first frequency to be sent, and then transmits the carrier signal 301 of the first frequency to the RF transmitting unit 1032. The RF transmitting unit 1032 transmits the carrier signal 301 of the first frequency to the transceiver control unit 1034. The transceiver control unit 1034 transmits the carrier signal 301 of the first frequency to the antenna 101, and the antenna 101 transmits the carrier signal 301 of the first frequency.

[0080] The baseband 1041 modulates the carrier signal 302 of the second frequency to be sent, and then transmits the carrier signal 302 of the second frequency to the RF transmitting unit 1042. The RF transmitting unit 1042 transmits the carrier signal 302 of the second frequency to the transceiver control unit 1044. The transceiver control unit 1044 transmits the carrier signal 302 of the second frequency to the antenna 102, and the antenna 102 transmits the carrier signal 302 of the second frequency.

[0081] The antenna 201 receives a carrier signal 301 of a first frequency and a carrier signal 302 of a second frequency. Then, the antenna 201 transmits the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency to the transceiver control unit 2034. The transceiver control unit 2034 transmits the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency to the receiving unit 2033. The receiving unit 2033 transmits the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency to the combining unit 205. The combining unit 205 can separate the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency, transmit the carrier signal 301 of the first frequency to the baseband 2031 for demodulation, and transmit the carrier signal 302 of the second frequency to the baseband 2041 for demodulation.

[0082] Similarly, the antenna 202 receives the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency, and then the antenna 202 transmits the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency to the transceiver control unit 2044, the transceiver control unit 2044 transmits the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency to the receiving unit 2043, the receiving unit 2043 transmits the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency to the combining unit 205, and the combining unit 205 can separate the carrier signal 301 of the first frequency and the carrier signal 302 of the second frequency, transmit the carrier signal 301 of the first frequency to the baseband 2031 for demodulation, and transmit the carrier signal 302 of the second frequency to the baseband 2041 for demodulation.

[0083] The above description is about the communication process in which the first device 100 acts as a transmitter and the second device 200 acts as a receiver. Conversely, if the second device 200 acts as a transmitter and the first device 100 acts as a receiver, the above process can also be referred to, except that the sending process occurs in the second device 200 and the receiving process is sent in the first device 100.

[0084] In an embodiment of the present application, different frequency carrier signals are sent to the antenna through transceiver lines, and carrier signals of at least two frequencies on each transceiver line are separated through a combining unit, which can reduce the combining loss in the sending process and improve the signal gain in the receiving process.

[0085] The solution provided in the embodiments of this application can be applied to both single-polarization and dual-polarization scenarios. In a single-polarization scenario, each antenna corresponds to a transmit / receive path of one polarization type. For a single-polarization scenario, see Figure 3 . That is, during transmission, no polarization processing is performed on the carrier signal, and each antenna corresponds to a single transmit / receive path.

[0086] In the dual-polarization scenario, each antenna corresponds to two polarization types of transmit and receive lines. The two polarization types can be horizontal and vertical polarization processing of the carrier signal, or polarization processing of the carrier signal in the +45° or -45° direction.

[0087] In a dual-polarization scenario, multiple transceiver lines are included in at least two line groups, where each line group includes at least two transceiver lines. At least two transceiver lines in the same line group share a combiner unit. The transceiver lines in the same line group are used to transmit carrier signals of different frequencies in the same polarization direction, or to receive carrier signals of at least two frequencies in the same polarization direction. The polarization directions of the carrier signals on the transceiver lines in different line groups are different.

[0088] Among them, at least two line groups include a first line group and a second line group, the first line group includes a first transceiver line, and the second line group includes a second transceiver line; a cross-polarization interference canceller is arranged between the baseband of the first transceiver line and the baseband of the second transceiver line; the antennas corresponding to the first transceiver line and the second transceiver line are configured with polarization separators, and the polarization separators are respectively connected to the first transceiver line and the second transceiver line through radio frequency cables, and the distance between the first transceiver line and the second transceiver line is greater than a first threshold; the carrier signals sent on the first transceiver line and the second transceiver line have the same frequency and different polarization directions; the carrier signals of at least two frequencies received on the first transceiver line and the second transceiver line have different polarization directions.

[0089] The structure and communication process of the microwave device in this case in a dual-polarization scenario can be understood by referring to FIG. 4 below.

[0090] As shown in FIG4 , the microwave communication system includes a first device 100 and a second device 200 . The first device 100 includes antennas 101 and 102, and line group 1 and line group 2. Line group 1 includes transceiver line 103 and transceiver line 104, and line group 2 includes transceiver line 106 and transceiver line 107. Transceiver line 103 and transceiver line 104 share a combiner unit 105, and transceiver line 106 and transceiver line 107 share a combiner unit 108. A cross-polarization interference canceller (XPIC) is provided between baseband 1031 and baseband 1061, and a cross-polarization interference canceller is provided between baseband 1041 and baseband 1071. In the architecture shown in Figure 4 , antenna 101 is equipped with an orthomode transducer (OMT) 1011. Antenna 101 is connected to transceiver lines 103 and 106 via RF cables via OMT 1011. Antenna 102 is equipped with a polarization separator 1021. Antenna 102 is connected to transceiver lines 104 and 107 via RF cables via OMT 1021. To reduce multipath effects, the distance between antennas 101 and 102 is typically long, e.g., greater than 10 meters. Therefore, the RF cables connecting antenna 101 and transceiver line 106, as well as the RF cables connecting antenna 102 and transceiver line 104, are typically long.

[0091] Similarly, FIG4 also illustrates four transceiver lines for the second device 200. Transceiver line 203 and transceiver line 204 belong to a line group and share a combiner unit 205. Transceiver line 206 and transceiver line 207 belong to a line group and share a combiner unit 208. A cross-polarization interference canceller is provided between baseband 2031 and baseband 2061, and a cross-polarization interference canceller is provided between baseband 2041 and baseband 2071. A polarization separator 2011 is mounted on antenna 201, and antenna 201 is connected to transceiver line 203 and transceiver line 206 via a radio frequency cable. A polarization separator 2021 is mounted on antenna 202, and antenna 202 is connected to transceiver line 204 and transceiver line 207 via a radio frequency cable. The radio frequency cable connecting the antenna 201 and the transceiver circuit 206 , and the radio frequency cable connecting the antenna 202 and the transceiver circuit 204 are usually long, for example, longer than 10 meters.

[0092] The units included in each transceiver line and the connection relationship can be referred to the introduction of FIG3 and understood in conjunction with FIG4 , and will not be introduced one by one here.

[0093] In the dual-polarization scenario described above, the carrier signal transmission and reception process can be:

[0094] Baseband 1031 processes carrier signal 301 at the first frequency into carrier signal 3011 in a first direction (e.g., horizontally). Baseband 1061 processes carrier signal 301 at the first frequency into carrier signal 3012 in a second direction (e.g., vertically). Carrier signal 3011 in the first direction is then transmitted through transceiver line 103 and delivered to polarization separator 1011 via a shorter RF cable. Carrier signal 3012 in the second direction is then transmitted through transceiver line 106 and delivered to polarization separator 1011 via a longer RF cable. Antenna 101 then transmits carrier signal 3011 at the first frequency in the first direction and carrier signal 3012 in the second direction.

[0095] Similarly, baseband 1041 processes carrier signal 302 at the second frequency into carrier signal 3021 in a first direction (e.g., horizontally), and baseband 1071 processes carrier signal 302 at the second frequency into carrier signal 3022 in a second direction (e.g., vertically). Carrier signal 3021 in the first direction is then transmitted through transceiver line 104 and delivered to polarization separator 1021 via a shorter RF cable. Carrier signal 3022 in the second direction is then transmitted through transceiver line 107 and delivered to polarization separator 1021 via a longer RF cable. Antenna 102 then transmits carrier signal 3021 in the first direction and carrier signal 3022 in the second direction at the second frequency.

[0096] Correspondingly, the antenna 201 and the antenna 202 of the second device will receive four carrier signals, namely: the carrier signal 3011 of the first frequency point in the first direction and the carrier signal 3012 in the second direction, and the carrier signal 3021 of the second frequency point in the first direction and the carrier signal 3022 in the second direction.

[0097] The polarization separator 2011 corresponding to the antenna 201 will transmit the carrier signal 3011 of the first frequency in the first direction and the carrier signal 3021 of the second frequency in the first direction to the transceiver line 203, and transmit the carrier signal 3012 of the first frequency in the second direction and the carrier signal 3022 of the second frequency in the second direction to the transceiver line 206.

[0098] The polarization separator 2021 corresponding to the antenna 202 will transmit the carrier signal 3011 of the first frequency in the first direction and the carrier signal 3021 of the second frequency in the first direction to the transceiver line 204, and transmit the carrier signal 3012 of the first frequency in the second direction and the carrier signal 3022 of the second frequency in the second direction to the transceiver line 207.

[0099] The combining unit 205 separates the carrier signal 3011 of the first frequency point in the first direction and the carrier signal 3021 of the second frequency point in the first direction on the transceiver line 203 and the transceiver line 204, and demodulates the carrier signal 3011 by the baseband 2031 and demodulates the carrier signal 3021 by the baseband 2041.

[0100] The combining unit 208 separates the carrier signal 3012 of the first frequency point in the second direction and the carrier signal 3022 of the second frequency point in the second direction on the transceiver line 206 and the transceiver line 207, and the baseband 2061 demodulates the carrier signal 3012 and the baseband 2071 demodulates the carrier signal 3022.

[0101] Each of the aforementioned transceiver lines consists of a radio frequency (RF) segment, an analog intermediate frequency (IF) segment, and a digital baseband segment. The RF segment refers to the area near the antenna within the RF band; for example, the transceiver control unit can be located in the RF segment. The analog IF segment refers to the analog carrier signal segment, and the digital baseband segment refers to the baseband segment. The combiner unit can be located in either the analog IF segment or the digital baseband segment. Figure 4 illustrates the combiner unit located in the analog IF segment.

[0102] The above description is about the communication process in which the first device 100 acts as a transmitter and the second device 200 acts as a receiver. Conversely, if the second device 200 acts as a transmitter and the first device 100 acts as a receiver, the above process can also be referred to, except that the sending process occurs in the second device 200 and the receiving process is sent in the first device 100.

[0103] In an embodiment of the present application, the transmission of carrier signals at different frequencies and different polarization directions to the antenna is achieved through the transceiver line, and the separation of the carrier signals at a certain polarization direction of at least two frequencies on each transceiver line is achieved through the combining unit, which can reduce the combining loss in the sending process and improve the signal gain in the receiving process.

[0104] The above dual-polarization scenario can also be understood by referring to the structure of the microwave device and the communication process shown in FIG5 .

[0105] As shown in Figure 5 , the microwave communication system and microwave device illustrated in Figure 5 are essentially the same as those illustrated in Figure 4 , differing in that the combining unit is located in the digital baseband segment. For example, in Figure 5 , combining unit 105, baseband 1031, and baseband 1041 are all located in the digital baseband segment. Combining unit 108, baseband 1061, and baseband 1071 are also located in the digital baseband segment. When combining units are located in the digital baseband segment, the difficulty of implementing analog circuits can be reduced.

[0106] Taking into account that RF cables are not only expensive but also cause insertion loss to the signal, based on this, an embodiment of the present application also provides a microwave device and a microwave communication system of another structure. The microwave device in the microwave communication system includes multiple antennas and multiple transceiver lines. The multiple transceiver lines are included in at least two line groups, wherein each line group includes at least two transceiver lines, and at least two transceiver lines in different line groups share a combining unit; different transceiver lines in the same line group: used to send carrier signals of the same frequency in different polarization directions, or used to receive carrier signals of at least two frequencies in different polarization directions.

[0107] Among them, at least two line groups include a third line group and a fourth line group, the third line group includes a third transceiver line and a fourth transceiver line, and the fourth line group includes a fifth transceiver line; a cross-polarization interference canceller is provided between the baseband of the third transceiver line and the baseband of the fifth transceiver line; the antennas corresponding to the third transceiver line and the fourth transceiver line are configured with a polarization separator, which is connected to the third transceiver line and the fourth transceiver line through a radio frequency cable, and the distance between the third transceiver line and the fourth transceiver line is less than a second threshold; the combining unit in the third line group is connected to the third transceiver line. The baseband of the transceiver line is connected to the baseband of the fourth transceiver line, and is connected to the receiving unit of the third transceiver line and the receiving unit of the fifth transceiver line through an intermediate frequency cable or a digital cable; the combining unit in the third line group is used to: separate the carrier signals of at least two frequencies with the same polarization direction received by the third transceiver line and the carrier signals of at least two frequencies with the same polarization direction received by the fifth transceiver line, and the polarization direction of the carrier signals of at least two frequencies received by the third transceiver line is the same as the polarization direction of the carrier signals of at least two frequencies received by the fifth transceiver line.

[0108] In an embodiment of the present application, the distance between the third transceiver line and the fourth transceiver line is less than the second threshold value, which can reduce the use of RF cables. The receiving unit of the third transceiver line and the receiving unit of the fifth transceiver line are connected through an intermediate frequency cable or a digital cable, and carrier signals of different polarization directions of the same frequency point can also be transmitted to the same antenna without the need for mutual transmission of RF cables, thereby reducing the use of RF cables and reducing the insertion loss caused by the use of longer RF cables.

[0109] In the embodiment of the present application, the second threshold is much smaller than the first threshold, for example, the first threshold may be 10 meters and the second threshold may be 0.5 meters. Therefore, compared with the microwave devices shown in Figures 4 and 5, the microwave device of this structure greatly reduces the amount of RF cables used.

[0110] The microwave device and communication process in this case can be understood by referring to FIG6 .

[0111] As shown in Figure 6, the structure of this microwave device can be understood by referring to the description of Figures 4 or 5. The differences are that antenna 101 is connected to transceiver lines 103 and 104, and antenna 102 is connected to transceiver lines 106 and 107. Antenna 201 is connected to transceiver lines 203 and 204, and antenna 202 is connected to transceiver lines 206 and 207. Because the transceiver lines in the same line group are relatively close, only short RF cables are required to connect to the corresponding transceiver lines.

[0112] Combiner unit 105 is shared by transceiver lines 103 and 106, and combiner unit 108 is shared by transceiver lines 104 and 107. Combiner unit 205 is shared by transceiver lines 203 and 206, and combiner unit 208 is shared by transceiver lines 204 and 207. The combiner units and transceiver lines are connected via intermediate frequency (IF) cables or digital cables, which are much cheaper than RF cables.

[0113] Based on the structure shown in FIG6 , in the dual-polarization scenario, the carrier signal transmission and reception process may be as follows:

[0114] Baseband 1031 processes carrier signal 301 at the first frequency into carrier signal 3011 in a first direction (e.g., horizontally). Baseband 1041 processes carrier signal 301 at the first frequency into carrier signal 3012 in a second direction (e.g., vertically). Carrier signal 3011 in the first direction is then transmitted through transceiver line 103 and delivered to polarization separator 1011 via a relatively short RF cable. Carrier signal 3012 in the second direction is then transmitted through transceiver line 104 and delivered to polarization separator 1011 via a relatively short RF cable. Antenna 101 then transmits carrier signal 3011 at the first frequency in the first direction and carrier signal 3012 in the second direction.

[0115] Similarly, baseband 1061 processes carrier signal 302 at the second frequency into carrier signal 3021 in a first direction (e.g., horizontally), and baseband 1071 processes carrier signal 302 at the second frequency into carrier signal 3022 in a second direction (e.g., vertically). Carrier signal 3021 in the first direction is then transmitted through transceiver line 106 and delivered to polarization separator 1021 via a relatively short RF cable. Carrier signal 3022 in the second direction is then transmitted through transceiver line 107 and delivered to polarization separator 1021 via a relatively short RF cable. Antenna 102 then transmits carrier signal 3021 in the first direction and carrier signal 3022 in the second direction at the second frequency.

[0116] Correspondingly, the antenna 201 and the antenna 202 of the second device will receive four carrier signals, namely: the carrier signal 3011 of the first frequency point in the first direction and the carrier signal 3012 in the second direction, and the carrier signal 3021 of the second frequency point in the first direction and the carrier signal 3022 in the second direction.

[0117] The polarization separator 2011 corresponding to the antenna 201 will transmit the carrier signal 3011 of the first frequency in the first direction and the carrier signal 3021 of the second frequency in the first direction to the transceiver line 203, and transmit the carrier signal 3012 of the first frequency in the second direction and the carrier signal 3022 of the second frequency in the second direction to the transceiver line 204.

[0118] The polarization separator 2021 corresponding to the antenna 202 will transmit the carrier signal 3011 of the first frequency in the first direction and the carrier signal 3021 of the second frequency in the first direction to the transceiver line 206, and transmit the carrier signal 3012 of the first frequency in the second direction and the carrier signal 3022 of the second frequency in the second direction to the transceiver line 207.

[0119] The combining unit 205 separates the carrier signal 3011 of the first frequency point in the first direction and the carrier signal 3021 of the second frequency point in the first direction on the transceiver line 203 and the transceiver line 206, and the baseband 2031 demodulates the carrier signal 3011 and the baseband 2041 demodulates the carrier signal 3021.

[0120] The combining unit 208 separates the carrier signal 3012 of the first frequency point in the second direction and the carrier signal 3022 of the second frequency point in the second direction on the transceiver line 204 and the transceiver line 207, and the baseband 2061 demodulates the carrier signal 3012 and the baseband 2071 demodulates the carrier signal 3022.

[0121] The combining unit in FIG6 is located in the digital baseband segment. In fact, the combining unit may also be located in the analog intermediate frequency segment, which is not limited in this application.

[0122] The above description is about the communication process in which the first device 100 acts as a transmitter and the second device 200 acts as a receiver. Conversely, if the second device 200 acts as a transmitter and the first device 100 acts as a receiver, the above process can also be referred to, except that the sending process occurs in the second device 200 and the receiving process is sent in the first device 100.

[0123] In the embodiment of the present application, while reducing the combining loss in the transmission process and improving the signal gain in the receiving process, the use of RF cables can be reduced, and the insertion loss caused by using longer RF cables can be reduced.

[0124] In the implementation of this application, the baseband, combining unit, RF transmitting unit, receiving unit and transceiver control unit in the above-mentioned transceiver line can be implemented by circuit or by software control. If implemented by software control, control parameters can be configured in the processor of the microwave device. During initialization, the processor can configure the functions of the baseband, combining unit, RF transmitting unit, receiving unit and transceiver control unit in the above-mentioned transceiver line according to the control parameters, thereby executing the functions performed by each unit in the above-mentioned embodiment.

[0125] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0126] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, a computer, a server, or a data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode to another website, a computer, a server, or a data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or a data center that includes one or more available media integrations. The available medium can be a magnetic medium, (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid-state drive Solid State Disk (SSD)), etc.

Claims

1. A microwave communication system, characterized in that: include: a first device and a second device, the first device comprising a plurality of antennas, the second device comprising a plurality of antennas; The first device is used to send carrier signals of at least two frequencies through at least two antennas among the multiple antennas, and each antenna of the at least two antennas corresponds to a carrier signal of at least one frequency; The second device is used to receive the carrier signal of the at least two frequencies through at least two antennas among the multiple antennas, wherein each antenna of the at least two antennas receives the carrier signal of the at least two frequencies.

2. The microwave communication system according to claim 1, characterized in that: Both the first device and the second device further include a plurality of transceiver lines, at least two of the plurality of transceiver lines share a combining unit, each of the plurality of antennas corresponds to at least one transceiver line, each antenna is connected to a corresponding transceiver line, and the transceiver line is used to send a carrier signal to the antenna or to receive a carrier signal from the antenna; Each of the transceiver lines is used to send a carrier signal of one frequency point, or is used to receive carrier signals of the at least two frequencies; The combining unit is used to separate carrier signals of at least two frequencies on a target transceiver line, and the target transceiver line is a transceiver line that shares the combining unit.

3. The microwave communication system according to claim 2, characterized in that: Each of the transceiver lines comprises a baseband, the common combining unit, a radio frequency transmitting unit, a receiving unit and a transceiver control unit; The transceiver control unit is connected to the antenna corresponding to the transceiver line, the transceiver control unit is connected to the RF transmitting unit and the receiving unit respectively, and the transceiver control unit is used to control the transceiver line for sending or receiving; The combining unit is respectively connected to the baseband and receiving unit on the transceiver lines having a common relationship; The baseband is connected to the radio frequency transmitting unit.

4. The microwave communication system according to claim 2 or 3, characterized in that: In a single-polarization scenario, each antenna corresponds to a transceiver line of one polarization type.

5. The microwave communication system according to claim 2 or 3, characterized in that: In a dual-polarization scenario, each antenna corresponds to two polarization types of transceiver lines.

6. The microwave communication system according to claim 5, characterized in that: The plurality of transceiver lines are included in at least two line groups, wherein each line group includes at least two transceiver lines, and the at least two transceiver lines in the same line group share a combining unit; The transceiver lines in the same line group are used to send carrier signals of different frequencies in the same polarization direction, or to receive carrier signals of at least two frequencies in the same polarization direction; The polarization directions of carrier signals on the transmitting and receiving lines in different line groups are different.

7. The microwave communication system according to claim 6, characterized in that: The at least two line groups include a first line group and a second line group, the first line group includes a first transceiver line, and the second line group includes a second transceiver line; A cross-polarization interference canceller is provided between the baseband of the first transceiver line and the baseband of the second transceiver line; The antennas corresponding to the first transceiver line and the second transceiver line are configured with polarization separators, the polarization separators are respectively connected to the first transceiver line and the second transceiver line through radio frequency cables, and the distance between the first transceiver line and the second transceiver line is greater than a first threshold; The carrier signals sent on the first transceiver line and the second transceiver line have the same frequency and different polarization directions; The polarization directions of the carrier signals of at least two frequencies received on the first transceiver line and the second transceiver line are different.

8. The microwave communication system according to claim 5, characterized in that: The plurality of transceiver lines are included in at least two line groups, wherein each line group includes at least two transceiver lines, and at least two transceiver lines in different line groups share a combining unit; Different transceiver lines in the same line group are used to send carrier signals of the same frequency in different polarization directions, or to receive carrier signals of at least two frequencies in different polarization directions.

9. The microwave communication system according to claim 8, characterized in that: The at least two line groups include a third line group and a fourth line group, the third line group includes a third transceiver line and a fourth transceiver line, and the fourth line group includes a fifth transceiver line; A cross-polarization interference canceller is provided between the baseband of the third transceiver line and the baseband of the fifth transceiver line; The antennas corresponding to the third transceiver line and the fourth transceiver line are configured with polarization separators, and the polarization separators are connected to the third transceiver line and the fourth transceiver line through radio frequency cables. The distance between the third transceiver line and the fourth transceiver line is is less than a second threshold; The combining unit in the third line group is connected to the baseband of the third transceiver line and the baseband of the fourth transceiver line, and is connected to the receiving unit of the third transceiver line and the receiving unit of the fifth transceiver line through an intermediate frequency cable or a digital cable; The combining unit in the third line group is used to separate the carrier signals of at least two frequencies of the same polarization direction received by the third transceiver line and the carrier signals of at least two frequencies of the same polarization direction received by the fifth transceiver line. The polarization direction of the carrier signals of at least two frequencies received by the third transceiver line is the same as the polarization direction of the carrier signals of at least two frequencies received by the fifth transceiver line.

10. The microwave communication system according to any one of claims 6 to 9, characterized in that: Each of the transceiver lines includes a radio frequency segment, an analog intermediate frequency segment and a digital baseband segment, and the combining unit is located in the analog intermediate frequency segment or the digital baseband segment.

11. A microwave device, characterized in that: include: A plurality of transceiver lines and a plurality of antennas, each of the plurality of antennas corresponds to at least one transceiver line, each antenna is connected to a corresponding transceiver line, and the transceiver line is used to send a carrier signal to the antenna or to receive a carrier signal from the antenna; When sending a carrier signal, at least two of the multiple antennas send carrier signals of at least two frequencies, and each of the at least two antennas corresponds to a carrier signal of at least one frequency; When receiving a carrier signal, at least two antennas among the multiple antennas receive the carrier signal of the at least two frequency points, wherein each antenna among the at least two antennas receives the carrier signal of the at least two frequency points.

12. The device according to claim 11, characterized in that At least two of the multiple transceiver lines share a combining unit, each of the multiple antennas corresponds to at least one transceiver line, and each antenna is connected to the corresponding transceiver line; Each of the transceiver lines is used to send a carrier signal of one frequency point, or is used to receive carrier signals of the at least two frequencies; The combining unit is used to separate carrier signals of at least two frequencies on a target transceiver line, and the target transceiver line is a transceiver line that shares the combining unit.

13. The device according to claim 12, characterized in that Each of the transceiver lines comprises a baseband, the common combining unit, a radio frequency transmitting unit, a receiving unit and a transceiver control unit; The transceiver control unit is connected to the antenna corresponding to the transceiver line, the transceiver control unit is connected to the RF transmitting unit and the receiving unit respectively, and the transceiver control unit is used to control the transceiver line for sending or receiving; The combining unit is respectively connected to the baseband and receiving unit on the transceiver lines having a common relationship; The baseband is connected to the radio frequency transmitting unit.

14. The device according to claim 12 or 13, characterized in that In a single-polarization scenario, each antenna corresponds to a transceiver line of one polarization type.

15. The device according to claim 12 or 13, characterized in that In a dual-polarization scenario, each antenna corresponds to two polarization types of transceiver lines.

16. The device according to claim 15, characterized in that The plurality of transceiver lines are included in at least two line groups, wherein each line group includes at least two transceiver lines, and the at least two transceiver lines in the same line group share a combining unit; The transceiver lines in the same line group are used to send carrier signals of different frequencies in the same polarization direction, or to receive carrier signals of at least two frequencies in the same polarization direction; The polarization directions of carrier signals on the transmitting and receiving lines in different line groups are different.

17. The device according to claim 16, characterized in that The at least two line groups include a first line group and a second line group, the first line group includes a first transceiver line, and the second line group includes a second transceiver line; A cross-polarization interference canceller is provided between the baseband of the first transceiver line and the baseband of the second transceiver line; The antennas corresponding to the first transceiver line and the second transceiver line are configured with polarization separators, the polarization separators are respectively connected to the first transceiver line and the second transceiver line through radio frequency cables, and the distance between the first transceiver line and the second transceiver line is greater than a first threshold; The carrier signals sent on the first transceiver line and the second transceiver line have the same frequency and different polarization directions; The polarization directions of the carrier signals of at least two frequencies received on the first transceiver line and the second transceiver line are different.

18. The device according to claim 15, characterized in that The plurality of transceiver lines are included in at least two line groups, wherein each line group includes at least two transceiver lines, and at least two transceiver lines in different line groups share a combining unit; Different transceiver lines in the same line group are used to send carrier signals of the same frequency in different polarization directions, or to receive carrier signals of at least two frequencies in different polarization directions.

19. The device according to claim 18, characterized in that The at least two line groups include a third line group and a fourth line group, the third line group includes a third transceiver line and a fourth transceiver line, and the fourth line group includes a fifth transceiver line; A cross-polarization interference canceller is provided between the baseband of the third transceiver line and the baseband of the fifth transceiver line; The antennas corresponding to the third transceiver circuit and the fourth transceiver circuit are configured with polarization separators, the polarization separators are connected to the third transceiver circuit and the fourth transceiver circuit through a radio frequency cable, and the distance between the third transceiver circuit and the fourth transceiver circuit is less than a second threshold; The combining unit in the third line group is connected to the baseband of the third transceiver line and the baseband of the fourth transceiver line, and is connected to the receiving unit of the third transceiver line and the receiving unit of the fifth transceiver line through an intermediate frequency cable or a digital cable; The combining unit in the third line group is used to separate the carrier signals of at least two frequencies of the same polarization direction received by the third transceiver line and the carrier signals of at least two frequencies of the same polarization direction received by the fifth transceiver line. The polarization direction of the carrier signals of at least two frequencies received by the third transceiver line is the same as the polarization direction of the carrier signals of at least two frequencies received by the fifth transceiver line.

20. The device according to any one of claims 16 to 19, characterized in that Each of the transceiver lines includes a radio frequency segment, an analog intermediate frequency segment and a digital baseband segment, and the combining unit is located in the analog intermediate frequency segment or the digital baseband segment.

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