Signal transceiving apparatus, signal receiving apparatus and signal transceiving system

Abstract

The embodiments of the present application relate to the technical field of communications. Provided are a signal transceiving apparatus, a signal receiving apparatus and a signal transceiving system. A transceiving link is constructed by using an intermediate-frequency receiving chip and an intermediate-frequency transmitting chip, which are separate from each other. The signal transceiving apparatus comprises a receiving link and a transmitting link, wherein the receiving link comprises a first low-noise amplifier and a first intermediate-frequency receiving chip; and the transmitting link comprises an intermediate-frequency transmitting chip, a beamforming network and a power amplifier. On the basis of the separate transceiving link, the signal transceiving apparatus may further be used in combination with the signal receiving apparatus. The signal receiving apparatus comprises a second low-noise amplifier and a second intermediate-frequency receiving chip. A baseband unit of the signal transceiving apparatus and a baseband unit of the signal receiving apparatus may be integrated in one baseband chip, and the number of channels of the intermediate-frequency transmitting chip is different from the number of channels of the intermediate-frequency receiving chip. Therefore, asymmetric transmission for signal transceiving can be realized, and a combination of the signal transceiving apparatus and the signal receiving apparatus can be flexibly configured, thereby efficiently utilizing channel resources and adapting to various signal transceiving scenarios.

Description

Signal transceiving device, signal receiving device and signal transceiving system

[0001] The present application claims priority from the Chinese patent application No. 202411540449.7 filed on October 30, 2024, and entitled "Signal transceiving device, signal receiving device and signal transceiving system", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, in particular to a signal transceiving device, a signal receiving device and a signal transceiving system. BACKGROUND

[0003] With the development of communication technology, the communication frequency band is continuously evolving to higher frequency bands. Base stations and terminals generally use multiple-input multiple-output (MIMO) technology. MIMO technology refers to a technology that uses multiple receiving antennas and multiple transmitting antennas simultaneously in the communication process. It uses spatial multiplexing, spatial diversity and other methods to improve the communication capacity, coverage and signal-to-noise ratio of the communication system without increasing the spectrum resources.

[0004] Some frequency bands have different requirements for the number of digital channels and analog channels. For example, some frequency bands require 128 or 256 digital channels, but require 480 analog channels. A hybrid beamforming network is used between the digital channels and the analog channels to increase the dimension. However, when performing large-scale signal transceiving, the processing methods for receiving signals and transmitting signals are different, and the demand for the number of channels for transmitting signals and receiving signals is also different. The current intermediate frequency chip is generally integrated with receiving and transmitting, and the signal transmitting channel and the signal receiving channel are asymmetric. When the transmitted signal or the received signal passes through the hybrid beamforming network, two sets of networks are usually required to process the transmitted signal or the received signal respectively. Therefore, the existing hybrid beamforming network cannot meet the signal processing requirements of the signal transmitting link and the signal receiving link respectively, and also causes problems such as waste of signal transceiving channel resources. SUMMARY

[0005] The embodiments of the present application provide a signal transceiving device, a signal receiving device and a signal transceiving system. A separate signal transmitting link and a signal receiving link are adopted, and a hybrid beamforming network is arranged in the signal transmitting link to meet the signal processing requirements of the signal transmitting link and the signal receiving link respectively, thereby avoiding the waste of signal transceiving channel resources.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] In a first aspect, the present application provides a signal transceiver device, comprising a first baseband unit, a signal receiving link and a signal transmitting link, the signal transmitting link comprising an intermediate frequency transmitting chip, a hybrid beamforming network and a power amplifier; the signal receiving link comprising a first low noise amplifier and a first intermediate frequency receiving chip. The first baseband unit is configured to send a baseband signal to the intermediate frequency transmitting chip, the intermediate frequency transmitting chip is configured to convert the baseband signal to a radio frequency signal and convert the radio frequency signal to an analog signal, the hybrid beamforming network is configured to map the signal output by the intermediate frequency transmitting chip to a plurality of channels and expand the signal transmission channels, and is also configured to analog weight the signal output by the intermediate frequency transmitting chip; the power amplifier is configured to amplify the signal processed by the hybrid beamforming network, and the amplified signal is transmitted to an antenna for transmission; the first low noise amplifier is configured to amplify the signal received by the antenna, and the first intermediate frequency receiving chip is configured to convert the signal amplified by the first low noise amplifier to a digital signal, convert the digital signal to a baseband signal, and send the digital signal to the baseband unit for processing.

[0008] The signal transceiver device provided by the present application sets separate intermediate frequency transmitting chips and first intermediate frequency receiving chips, constructs an intermediate frequency transmitting chip-hybrid beamforming network-power amplifier signal transmitting link and a first low noise amplifier-first intermediate frequency receiving chip signal receiving link, and when the signal output by the intermediate frequency transmitting chip is processed by the hybrid beamforming network, the input channel of the signal and the output channel of the signal are in a one-to-many mapping relationship, so as to expand the signal transmission channels. By separately setting the intermediate frequency transmitting chip and the first intermediate frequency receiving chip, the signal transmitting link and the signal receiving link can be separated, the hybrid beamforming network is arranged only on the signal transmitting link, and the received signal and the transmitted signal can be processed differently, so as to meet the signal processing requirements of the signal transmitting link and the signal receiving link, and avoid wasting of signal transceiver channel resources.

[0009] In some embodiments, the number of signal transmission channels of the signal output by the intermediate frequency transmitting chip is inconsistent with the number of signal transmission channels of the signal received by the first intermediate frequency receiving chip. In the related art, the number of signal transmitting channels and the number of signal receiving channels of the base station are consistent, but as the signal transceiver requirements of the base station are different, if the number of signal transmitting channels and the number of signal receiving channels remain consistent, it will cause waste of channel resources with relatively low signal transmission channel requirement in the signal transmitting link or the signal receiving link, and therefore the number of signal transmitting channels or the number of signal receiving channels also needs to be adjusted correspondingly. By setting the number of signal transmission channels of the signal output by the intermediate frequency transmitting chip to be inconsistent with the number of signal transmission channels of the signal received by the first intermediate frequency receiving chip, the different signal transceiver requirements of the base station can be matched, the application of multiple scenarios of signal transceiving can be realized, and the signal transceiver channel resources are saved.

[0010] In some embodiments, the signal transceiver device further comprises an antenna and a circulator, the circulator comprising a first end, a second end and a third end, the first end of the circulator being connected to the antenna, the second end of the circulator being connected to the power amplifier, and the third end of the circulator being connected to the first low-noise amplifier; the circulator being configured to transmit the signal amplified by the power amplifier to the antenna for transmission, or transmit the signal received by the antenna to the first low-noise amplifier. By providing the circulator, the signal received and transmitted by the antenna can be separated.

[0011] In some embodiments, the signal transceiver device further comprises a first filter; the first end of the circulator is connected to the antenna through the first filter. By providing the first filter, the frequency of the signal transmitted thereby can be selected, so as to filter the signal transmitted by the circulator when transmitting the signal, allowing signals within a specific frequency range to pass through and filtering out other out-of-band signals; or filter the signal received by the antenna when receiving the signal, allowing signals within a specific frequency range to pass through and filtering out other out-of band signals.

[0012] In some embodiments, the number of signal receiving links is multiple, and the signal transceiver device further comprises a first switch circuit, which is arranged between the circulator and the first low-noise amplifier and is configured to switch the conduction state of the signal receiving link and the circulator. The first switch circuit is connected between the circulator and the first low-noise amplifier, and when the antenna transmits a signal, the first switch circuit is disconnected, and the circulator is disconnected from the signal receiving link; when receiving a signal, the first switch circuit is turned on, and the circulator is turned on with the signal receiving link. In the TDD mode, the uplink and downlink signals of the base station are transmitted on the same frequency but switched in different time slots, so a device capable of quickly switching the signal path is needed to separate the uplink and downlink signals. By connecting the first switch circuit between the circulator and the first low-noise amplifier, the first switch circuit can connect the antenna to the transmitting link or the receiving link, switch between the signal transmitting link and the signal receiving link, and conduct the signal, thereby achieving a certain degree of signal isolation and preventing crosstalk between the transmitting and receiving signals.

[0013] In some embodiments, the signal transceiver device further comprises a receiving antenna and a transmitting antenna; the receiving antenna is connected to the first low-noise amplifier and is configured to transmit the received signal to the first low-noise amplifier; and the transmitting antenna is connected to the power amplifier and is configured to transmit the signal amplified by the power amplifier. By separating the transmitting antenna and the receiving antenna, the efficiency of signal transmission and reception can be improved, and the accuracy of signal transmission and reception can also be effectively improved.

[0014] In a second aspect, the application provides a signal receiving device, which comprises a second intermediate frequency receiving chip, a second low noise amplifier and a second baseband unit; the second low noise amplifier is configured to amplify a signal received by an antenna; the second intermediate frequency receiving chip is configured to convert the signal amplified by the second low noise amplifier into a digital signal, convert the digital signal to a baseband, and send the digital signal converted to the baseband to the second baseband unit for processing.

[0015] In some embodiments, the signal receiving device further comprises an antenna and a second filter; the second filter is connected between the antenna and the second low noise amplifier.

[0016] In a third aspect, the application provides a signal transceiving system, which comprises the signal transceiving device of the first aspect and any implementation thereof, and the signal receiving device of the second aspect and any implementation thereof; the signal transceiving device comprises a first baseband unit, and the signal receiving device comprises a second baseband unit; the first baseband unit and the second baseband unit can be integrated in the same chip. By combining the signal transceiving device and the signal receiving device to form the signal transceiving system, the signal transceiving system can be applied to various signal transceiving scenarios. The signal transceiving system provided by the application comprises the signal transceiving device and the signal receiving device as described above, and thus has all the beneficial effects described above, which will not be described here again. BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1 is a schematic diagram of a signal transceiving in the related art according to an embodiment of the application;

[0018] FIG. 2 is an architecture diagram of a signal transceiving device in the related art according to an embodiment of the application;

[0019] FIG. 3 is an architecture diagram of a signal transceiving device according to an embodiment of the application;

[0020] FIG. 4 is an architecture diagram of another signal transceiving device according to an embodiment of the application;

[0021] FIG. 5 is an architecture diagram of a signal receiving device according to an embodiment of the application;

[0022] FIG. 6 is an architecture diagram of a signal transceiving system according to an embodiment of the application;

[0023] FIG. 7 is a schematic diagram of a top surface design according to an embodiment of the application;

[0024] FIG. 8 is an architecture diagram of another signal transceiving system according to an embodiment of the application;

[0025] FIG. 9 is a schematic diagram of a U-shaped array transceiving separation antenna design in the related art according to an embodiment of the application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application.

[0027] Hereinafter, the terms "second", "first", and the like are only used for description convenience, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "second", "first", and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0028] Unless otherwise required by the context, the term "comprising" is interpreted to mean "including, but not limited to" throughout the specification and claims. In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiment", "exemplarily" or "some examples" and the like are intended to mean that the specific features, structures, materials or characteristics related to the embodiment or example are included in at least one embodiment or example of the present application. The illustrative representation of the above terms does not necessarily mean the same embodiment or example. In addition, the specific features, structures, materials or characteristics described can be included in any one or more embodiments or examples in any appropriate manner.

[0029] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design presented as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of "exemplary" or "for example" is intended to present concepts in a concrete manner. In the embodiments of the present application, the terms "first", "second", "third", "fourth", "fifth", "sixth", "the first", "the second", "the third", "the fourth", "the fifth", "the sixth", and the like are used to distinguish between similar objects that have different characteristics. However, the above terms are not necessarily used to describe a sequence or order. In the embodiments of the present application, the terms "comprise", "comprising", "include", "including", "contain", "containing", "have", "having", or "carry", or the like are used to indicate that the object or objects that follow the above terms are not excluded from the object or objects that are described by the above terms. In the embodiments of the present application, the terms "one embodiment", "some embodiments", "exemplary embodiment", "exempiarily", or "some examples" and the like are intended to mean that the specific features, structures, or characteristics related to the embodiment or example are included in at least one embodiment or example of the application. The illustrative representation of the above terms does not necessarily mean the same embodiment or example.

[0030] In the embodiments of the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through an intermediate medium. In addition, the term "coupling" can be direct electrical connection, or indirect electrical connection through an intermediate medium. The term "contact" can be direct contact, or indirect contact through an intermediate medium.

[0031] In the embodiments of the present application, "and / or" describes the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character " / " generally represents that the front and rear associated objects have an "or" relationship.

[0032] With the continuous progress of communication technology, high frequency bands have wider bandwidth resources and can support higher data transmission rates. In order to improve the performance of the communication system at high frequency bands, the current technology upgrades the digital channel and the analog channel through the hybrid beamforming network to improve the transmission and reception capacity of the signal, thereby improving the communication quality. However, the current hybrid beamforming network cannot meet the signal processing of the signal transmission link or the signal reception link respectively. The signal transmission link and the signal reception link differ in signal power, channel characteristics, interference conditions, etc., and require different signal processing methods. The existing hybrid beamforming network often cannot adapt well to such differences, resulting in poor signal processing effect.

[0033] And because the processing methods of the received signal and the transmitted signal are different, when large-scale signal transmission and reception is performed, the processing methods of the received signal and the transmitted signal are different, and the demand for the number of channels for the transmitted signal and the received signal is also different. For example, when the demand for signal transmission is high, more transmission power and antenna ports may be needed, and when the demand for signal reception is high, more reception sensitivity and antenna diversity may be needed. The current intermediate frequency chip is usually integrated with transmission and reception, and when the transmitted signal or the received signal passes through the hybrid beamforming network, two sets of networks are usually needed to process the transmitted signal or the received signal respectively. If the hybrid beamforming network cannot be flexibly adjusted according to the demand of the transmission or reception link, it will result in waste of channel resources.

[0034] FIG. 1 is a schematic diagram of signal transmission and reception in the related art according to an embodiment of the present application.

[0035] Referring to FIG. 1, large-scale multiple-input multiple-output technology can significantly improve the spectral efficiency and capacity of the communication system. The concept of asymmetric multiple-input multiple-output system is proposed in some current technologies. The system includes a base station and a mobile terminal. The asymmetric design of the signal receiving channel and the signal transmitting channel can better adapt to the asymmetry of the uplink and downlink data traffic in the actual communication scenario. The base station end is equipped with a large number of antenna arrays for transmitting and receiving millimeter wave signals. The mobile terminal is also equipped with multiple antennas to improve the reception signal quality and data transmission rate.

[0036] FIG. 2 is an architecture diagram of a signal transmission and reception device 100 in the related art according to an embodiment of the present application.

[0037] As shown in FIG. 2, the signal transmission and reception device 100 includes an antenna 110, a filter 120, a circulator 130, a low-noise amplifier 140, a power amplifier 150, a hybrid beamforming network 160, an intermediate frequency chip 170, and a baseband unit 180.

[0038] The intermediate frequency chip 170 is used to convert the baseband digital signal and the radio frequency signal in two transmission directions of signal receiving and signal transmitting. For example, the baseband digital signal output by the baseband unit 180 is up-converted to the radio frequency signal, and is converted to an analog signal to be transmitted to the power amplifier 150. The power amplifier 150 amplifies the radio frequency signal and transmits it to the antenna for transmission. Or, the radio frequency signal transmitted by the low noise amplifier 140 is converted to a digital signal, and is down-converted to a baseband signal to be provided to the baseband unit 180 for processing.

[0039] The hybrid beamforming network 160 can obtain multiple signals with specific phase and amplitude relationship by precisely controlling the phase and amplitude of the signals, so as to expand the number of signal channels and realize beamforming.

[0040] The circulator 130 can separate the signals in two transmission directions of signal receiving and signal transmitting. For example, the circulator 130 is used to transmit the signal amplified by the power amplifier 150 to the antenna 110 for transmission, or the circulator 130 is used to transmit the signal received by the antenna 110 to the low noise amplifier 140. A filter 120 can also be arranged between the circulator 130 and the antenna, and the filter 120 can be used to filter out the out-of-band signals.

[0041] The signal transceiver device has different requirements for the number of digital channels and analog channels, so the hybrid beamforming network 160 can be used to expand the number of channels while realizing beamforming. For example, in the signal transmitting direction, the hybrid beamforming network 160 is connected between the intermediate frequency chip 170 and the power amplifier 150, and the hybrid beamforming network 160 is used to map the channels of the signal output by the intermediate frequency chip 170. In order to ensure the transmission integrity of the signal output by the intermediate frequency chip 170 during signal transmission, the channel mapping is usually in the form of one-to-many, that is, one input channel corresponds to multiple output channels. For example, as shown in FIG. 2, in the signal transmitting direction, the input channel of the hybrid beamforming network 160 is 256, and the output channel after channel mapping processing is 480, which improves the number of signal transmission channels.

[0042] In the signal receiving direction, the hybrid beamforming network 160 performs channel mapping on the signal amplified by the low noise amplifier 140 and sends it to the intermediate frequency chip 170, and is also used for beamforming on the signal amplified by the low noise amplifier 140; the hybrid beamforming network 160 is connected between the intermediate frequency chip 170 and the low noise amplifier 140, the hybrid beamforming network 160 performs channel mapping on the signal amplified by the low noise amplifier 140 and sends it to the intermediate frequency chip 170, considering the signal processing capability of the intermediate frequency chip 170, in order to ensure the transmission integrity of the signal amplified by the low noise amplifier 140 and the symmetrical transmission and reception of the signal, in the signal receiving direction, the channel mapping is usually in the form of many-to-one, that is, multiple input channels correspond to one output channel; for example, referring to FIG. 2, in the signal receiving direction, the input channel of the hybrid beamforming network 160 is 480, and the output channel after channel mapping processing is 256, which reduces the number of signal transmission channels.

[0043] In the above embodiment, the signal transmission and reception of the intermediate frequency chip 170 is integrated, and the transceiver integrated hybrid beamforming network 160 is arranged on the signal transmission link and the signal receiving link. When the demand for transmitting signals and receiving signals is different, the transceiver integrated intermediate frequency chip 170 and the transceiver integrated hybrid beamforming network 160 arranged on the transmission link and the receiving link are needed, and usually two sets of networks are needed to process the transmitted signals or the received signals when the signals pass through the hybrid beamforming network 160. Therefore, the existing hybrid beamforming network 160 cannot meet the signal processing requirements of the signal transmission link and the signal receiving link, and also causes problems such as waste of signal transmission and reception channel resources.

[0044] Therefore, the embodiments of the present application provide a signal transmission and reception device to meet the signal processing requirements of the transmission link and the receiving link respectively, and avoid the waste of signal transmission and reception channel resources.

[0045] FIG. 3 is an architecture diagram of a signal transmission and reception device 200A provided by an embodiment of the present application.

[0046] Therefore, in some embodiments, as shown in FIG. 3, the signal transmission and reception device 200A includes a first baseband unit 260, a signal transmission link, and a signal receiving link. The signal transmission link includes an intermediate frequency transmission chip 210, a hybrid beamforming network 230, and a power amplifier 240. The signal receiving link includes a first low noise amplifier 250 and a first intermediate frequency receiving chip 220.

[0047] The hybrid beamforming network 230 is connected between the intermediate frequency transmission chip 210 and the power amplifier 240, and the baseband unit 260 is connected to the intermediate frequency transmission chip 210 and the first intermediate frequency receiving chip 220 respectively.

[0048] The baseband unit 260 is configured to send the baseband signal to be transmitted to the intermediate frequency transmitting chip 210, the intermediate frequency transmitting chip 210 is configured to convert the baseband signal to be transmitted to radio frequency, and convert it into an analog signal, the hybrid beamforming network 230 is configured to perform channel mapping on the signal output by the intermediate frequency transmitting chip 210, and expand the signal transmission channel, and is also configured to perform beamforming on the signal output by the intermediate frequency transmitting chip 210; the power amplifier 240 is configured to amplify the signal processed by the hybrid beamforming network 230, and the amplified signal is transmitted to the antenna for transmission.

[0049] The first low noise amplifier 250 is configured to amplify the signal received by the antenna, and the first intermediate frequency receiving chip 220 is configured to convert the signal amplified by the first low noise amplifier 250 into a digital signal, and convert the digital signal to baseband; the first baseband unit 260 is configured to receive the digital signal sent by the first intermediate frequency receiving chip 220.

[0050] Specifically, the baseband unit 260 is responsible for processing the original digital signal, and usually encodes and modulates the original digital signal to generate a baseband signal to be transmitted, which usually has a lower frequency range and contains information to be transmitted. These baseband signals to be transmitted need to be further processed by the intermediate frequency transmitting chip 210 before being transmitted in the wireless channel; the baseband unit 260 is also responsible for receiving the digital signal sent by the first intermediate frequency receiving chip 220, and the baseband unit 260 decodes, demodulates, and corrects the received digital signal to recover the original information. The processing process is opposite to the encoding and modulation process when transmitting the signal. For example, the baseband unit decodes the received digital signal to convert the binary digital sequence into original information data, and then demodulates to recover the original signal waveform. If an error occurs during transmission, error correction processing is also needed to improve the reliability of the signal.

[0051] Specifically, the intermediate frequency transmitting chip 210 converts the baseband signal to be transmitted to the radio frequency band, which can make the signal have better propagation characteristics and be transmitted over a longer distance; the intermediate frequency transmitting chip 210 converts the digital signal into an analog signal, which can be radiated through the antenna, so the intermediate frequency transmitting chip 210 needs to have high-precision signal conversion capability to ensure the quality and reliability of signal transmission.

[0052] Specifically, the hybrid beamforming network 230 is connected between the intermediate frequency transmitting chip 210 and the power amplifier 240, and is used to perform channel mapping on the signal output by the intermediate frequency transmitting chip 210 and expand the signal transmission channel. That is, the hybrid beamforming network 230 can map the signal output by the intermediate frequency transmitting chip from a specific input channel to a corresponding output channel according to a preset rule or algorithm, and the signal is transmitted to the power amplifier 240 through the corresponding output channel. In this embodiment, the signal transmitted by the intermediate frequency transmitting chip 210 is usually weak, and therefore, in order to ensure the integrity and accuracy of signal transmission, the hybrid beamforming network 230 performs one-to-many channel mapping on the signal output by the intermediate frequency transmitting chip 210, thereby expanding the signal transmission channel.

[0053] Specifically, the hybrid beamforming network 230 is also used to perform beamforming on the signal output by the intermediate frequency transmitting chip 210, and the hybrid beamforming network 230 guarantees the quality of signal transmission and reception by hybrid use of analog and digital signal processing technologies. In the hybrid beamforming network 230, the digital beamforming part is mainly performed at the baseband, and the transmission performance is optimized by adjusting the amplitude and phase of the signal, while the analog beamforming part is usually performed in the radio frequency domain, and mainly adjusts the phase of the signal through devices such as phase shifters, thereby realizing the shaping and pointing of the beam.

[0054] Specifically, the power amplifier 240 is used to amplify the signal processed by the hybrid beamforming network 230, and the amplified signal is transmitted to the antenna for transmission. Because the power of the signal after various signal processing operations may not be sufficient for effective wireless transmission, the power amplifier 240 can increase the power of the signal to a sufficient level, so as to overcome factors such as signal attenuation, noise and interference in long-distance transmission, and ensure that the signal can reliably reach the receiving end. Common types of power amplifiers include transistor power amplifiers such as bipolar transistors, field effect transistors, and vacuum tube power amplifiers, which increase the power of the signal by controlling the intensity of the electron flow or electromagnetic field.

[0055] Specifically, the first low-noise amplifier 250 is used to amplify the signal received by the antenna, and the first low-noise amplifier 250 is mainly used to amplify the weak signal received by the antenna. When the signal received by the antenna is weak, it may be overwhelmed by noise and interference, and the first low-noise amplifier 250 can reduce the noise introduced by itself as much as possible while amplifying the signal, thereby improving the signal-to-noise ratio of the signal. By amplifying the signal received by the antenna, the first low-noise amplifier 250 can improve the signal reception sensitivity.

[0056] Specifically, the first intermediate frequency receiving chip 220 is configured to convert the signal amplified by the first low noise amplifier 250 into a digital signal, and frequency-convert the digital signal to a baseband. For example, the first intermediate frequency receiving chip 220 includes an analog-to-digital converter and a frequency down-conversion unit. The analog-to-digital converter samples and quantizes a continuous analog signal into a discrete digital signal, so as to facilitate subsequent digital signal processing. The frequency down-conversion unit frequency-converts the digital signal to a baseband. In wireless communication, the received signal is usually in a radio frequency band, and the baseband signal refers to a signal directly containing information after modulation and demodulation. Through frequency conversion, the radio frequency signal is converted into a baseband signal, so as to facilitate subsequent decoding and demodulation processing of the baseband unit 260.

[0057] In the above embodiment, by separately arranging the intermediate frequency transmitting chip 210 and the first intermediate frequency receiving chip 220, the channel separation of signal transmission and reception is realized, and the hybrid beamforming network 230 is arranged only on the signal transmission link. The hybrid beamforming network 230 is configured to map the channel of the signal output by the intermediate frequency transmitting chip 210 and expand the signal transmission channel. The hybrid beamforming network is not arranged on the signal receiving link, which can realize asymmetric transmission of signal transmission and reception, and match various signal transmission and reception scenarios.

[0058] In some embodiments, two sets of matched hybrid beamforming networks can also be arranged on the signal transmission link and the signal receiving link respectively. On the one hand, on the signal transmission link, one of the two sets of hybrid beamforming networks is configured to map the channel of the signal output by the intermediate frequency transmitting chip 210 and expand the signal transmission channel. On the other hand, on the signal receiving link, the other set of hybrid beamforming networks is configured to map the channel of the signal transmitted by the circulator and reduce the signal transmission channel. This can realize asymmetric transmission of signal transmission and reception, and match various signal transmission and reception scenarios.

[0059] In some embodiments, the number of signal transmission channels of the signal output by the intermediate frequency transmitting chip 210 is inconsistent with the number of signal transmission channels of the signal received by the first intermediate frequency receiving chip 220.

[0060] Specifically, in general, the signal transmission channel and the signal receiving channel in the base station are consistent. However, as the demand for signal transmission and reception of the base station is different, if the signal transmission channel and the signal receiving channel remain consistent, it will cause waste of signal transmission and reception channel resources. Therefore, the signal transmission channel or the signal receiving channel also needs to be adjusted correspondingly.

[0061] For example, when the demand for signal reception of the base station increases, the number of signal transmission channels of the signal received by the first intermediate frequency receiving chip 220 is greater than the number of signal transmission channels of the signal output by the intermediate frequency transmitting chip 210.

[0062] For example, when the base station has an increased demand for signal transmission, the number of signal transmission channels of the first intermediate frequency receiving chip 220 is less than the number of signal transmission channels of the intermediate frequency transmitting chip 210.

[0063] In the above embodiment, by setting the number of signal transmission channels of the intermediate frequency transmitting chip 210 and the number of signal transmission channels of the first intermediate frequency receiving chip 220 to be inconsistent, the different signal transceiving requirements of the base station can be matched, the application of multiple scenarios of signal transceiving can be realized, and the signal transceiving channel resources are saved.

[0064] Based on this, in some embodiments, as shown in FIG. 3, the signal transceiving device 200A includes an antenna 270 and a circulator 280. The circulator 280 includes a first end, a second end, and a third end. The first end of the circulator 280 is connected to the antenna 270, the second end of the circulator is connected to the power amplifier 240, and the third end of the circulator is connected to the first low-noise amplifier 250.

[0065] The circulator 280 is used to transmit the signal amplified by the power amplifier 240 to the antenna 270 for transmission, or transmit the signal received by the antenna 270 to the first low-noise amplifier 250.

[0066] Specifically, the circulator 280 generally has three or more ports, and signals can only be transmitted in a specific direction. In some other embodiments, the replacement device of the circulator can be determined according to actual conditions, such as an isolator, and the like, which will not be described one by one here.

[0067] In the present embodiment, the first end of the circulator 280 is connected to the antenna 270, the second end of the circulator is connected to the power amplifier 240, and the third end of the circulator is connected to the first low-noise amplifier 250. The circulator 280 is used to transmit the signal amplified by the power amplifier 240 to the antenna 270 for transmission, or transmit the signal received by the antenna 270 to the first low-noise amplifier 250. Therefore, thanks to the specific direction transmission characteristics of the circulator, the circulator can effectively isolate signals in different directions and prevent interference between signals.

[0068] Specifically, the antenna 270 is used for transceiving corresponding signals. In the present embodiment, the antenna 270 is a transceiver antenna, that is, an antenna capable of simultaneously transmitting and receiving signals. The transceiver antenna utilizes the reciprocity principle of the antenna. Reciprocity refers to the same characteristics of an antenna in the transmitting and receiving states. When the antenna transmits a signal, current flows in the antenna, generating an electromagnetic field and radiating into space. When receiving a signal, the electromagnetic field in space induces current in the antenna.

[0069] In the above embodiment, the antenna and the circulator are arranged to separate the signals received and transmitted by the antenna, ensure the separate transmission of the received and transmitted signals and the accuracy of the transmitted signals, and prevent interference between the signals.

[0070] Based on this, in some embodiments, the signal transceiver 200A further comprises a first filter 290; the first end of the circulator 280 is connected to the antenna 270 through the first filter 290.

[0071] Specifically, in wireless communication, different communication systems may apply different frequency ranges, and the filter can ensure that only the specific frequency signals required by the communication system can pass through. The first filter 290 can allow signals within a specific frequency range to pass through while suppressing signals of other frequencies, ensuring the quality of signal transmission and avoiding interference of signals of other frequencies on communication. For example, the first filter 290 can remove noise, interference signals and other frequency components that may affect the quality of communication.

[0072] Specifically, the first filter 290 is used to filter out signals with excessively high power or unwanted frequency signals. Signals with high power or interference signals of specific frequencies may cause damage to sensitive components of the receiving device. The first filter 290 can filter the signals before they enter the receiving device, reducing the risk of potential damage.

[0073] In the above embodiment, the first filter 290 is arranged to select the frequency of the signals transmitted thereby, allowing signals within a specific frequency range to pass through while suppressing signals of other frequencies, thereby ensuring the quality of signal transmission.

[0074] Based on this, in some embodiments, the number of signal receiving links is multiple, as shown in FIG. 3, the signal transceiver 200A further comprises a first switch circuit, which is arranged between the circulator and the multiple signal receiving links, and is used to switch the signal receiving links connected to the circulator.

[0075] In the time division duplex (TDD) mode, the uplink and downlink signals of the base station are usually transmitted at the same frequency. Since the uplink and downlink signals are switched in different time slots, a path capable of quickly switching signals is needed to ensure the correct separation and transmission of the uplink and downlink signals. The first switch S1 is connected between the circulator 280 and the first low-noise amplifier 250. According to the switching signal of the time slot, the antenna can be connected to the signal transmission link or the signal reception link. In a specific time slot, if it is the signal reception link transmission time, the first switch S1 is closed to connect the antenna to the signal reception link, so that the received signal can be transmitted to the subsequent circuit through the first low-noise amplifier 250 for processing. In the signal transmission link transmission time, the first switch S1 is opened to connect the antenna to the signal transmission link, so that the transmitted signal can be smoothly transmitted to the antenna and emitted.

[0076] In the above embodiment, the first switch circuit can accurately switch the signal path by quickly responding to the change of the time slot, realizing seamless switching of the transmission link or the reception link, and ensuring the continuity and stability of the signal transmission.

[0077] FIG. 4 is a schematic diagram of a signal transceiver device 200B according to an embodiment of the present application.

[0078] Based on this, in some embodiments, as shown in FIG. 4, the signal transceiver device 200B includes a first baseband unit 260, a signal transmission link, a signal reception link, a receiving antenna 270A and a transmitting antenna 270B. The signal transmission link includes an intermediate frequency transmission chip 210, a hybrid beamforming network 230 and a power amplifier 240; the signal reception link includes a first low-noise amplifier 250 and a first intermediate frequency reception chip 220.

[0079] The receiving antenna 270A is connected to the first low-noise amplifier 250, and is used to transmit the received signal to the first low-noise amplifier 250; the transmitting antenna 270B is connected to the power amplifier 240, and is used to transmit the signal amplified by the power amplifier 240.

[0080] Specifically, when the signal is radiated by the antenna, a part of the energy may be directly coupled into the receiving antenna. The transmitted signal usually has high power, and even if only a small part of it leaks into the receiving path, it may cause serious interference to the weak received signal. For example, in the case of high-power transmission, the leaked signal may saturate the amplifier, resulting in the inability to normally receive the target signal. At the same time, the received signal may also be interfered by the electromagnetic field generated by the transmitted signal through other ways.

[0081] Specifically, the receiving antenna 270A transmits the received signal to the first low-noise amplifier 250. The receiving antenna 270A usually has a specific frequency response and directivity, and can effectively capture signals from a specific direction.

[0082] Specifically, the transmitting antenna 270B is connected with the power amplifier 240, and is used to transmit the signal amplified by the power amplifier 240. The transmitting antenna 270B radiates the signal to the space. The design of the transmitting antenna needs to consider the frequency, power, directivity and other factors of the transmitted signal, so as to ensure that the signal can be effectively transmitted to the target receiving end.

[0083] In the above embodiment, the transmitting antenna 270B and the receiving antenna 270A are arranged separately, which can increase the distance between them in space, thereby reducing the direct electromagnetic coupling. The arrangement of the transmitting antenna and the receiving antenna separately makes the intensity of the transmitting signal reaching the receiving antenna greatly weakened, reduces the degree of interference, and improves the accuracy of signal transmission and reception.

[0084] FIG. 5 is a schematic diagram of a signal receiving device 300A provided by an embodiment of the present application.

[0085] Based on this, in some embodiments, as shown in FIG. 5, the signal receiving device 300A includes a second baseband unit 350, a second intermediate frequency receiving chip 310 and a second low-noise amplifier 320. The second low-noise amplifier 320 is used to amplify the signal received by the antenna 330, and the second intermediate frequency receiving chip 310 is used to convert the signal amplified by the second low-noise amplifier 320 into a digital signal, and to convert the digital signal to a baseband.

[0086] Specifically, in some embodiments, when the base station only needs to receive signals, a signal receiving device can be arranged separately, which is only used for receiving signals.

[0087] Specifically, the antenna 330 receives a radio frequency signal from the space. The signal received by the antenna 330 first enters the second low-noise amplifier 320, which amplifies the received signal. The amplified signal is transmitted to the second intermediate frequency receiving chip 310, which converts the signal amplified by the second low-noise amplifier 320 into a digital signal through an analog-to-digital conversion function, and converts the signal to a baseband. The analog-to-digital conversion function is realized by an analog-to-digital converter, which converts an analog signal into a digital signal, and converts the signal from a radio frequency band to a baseband, which prepares for subsequent signal demodulation, decoding and other operations.

[0088] In the above embodiment, the signal receiving device 300A is configured to receive signals, and the second intermediate frequency receiving chip 310 and the second low noise amplifier 320 are arranged. The second low noise amplifier 320 amplifies the signals received by the antenna and reduces the noise introduced by itself as much as possible. The amplified signals are sent to the second intermediate frequency receiving chip. The second intermediate frequency receiving chip converts the analog signals into digital signals through the analog-to-digital conversion function, and converts the frequency to the baseband frequency. Then, the signals are sent to the baseband unit, thereby ensuring the accuracy of the signal receiving and transmission.

[0089] In some embodiments, as shown in FIG. 5, the signal receiving device 300A further includes a second filter 340. The second filter 340 is connected between the antenna 330 and the second low noise amplifier 320. The second filter 340 is configured to filter the signals received by the antenna 330 and send them to the second low noise amplifier 320.

[0090] Specifically, the second filter 340 can protect the receiving end device from high-power signals or unwanted frequency signals. High-power signals or specific frequency interference signals can damage sensitive components of the receiving device. The second filter 340 can filter the signals before they enter the receiving device, thereby reducing the risk of potential damage.

[0091] It can be understood that the second filter 340 is connected to the antenna 330, which ensures that the signals received from the antenna 330 first pass through the second filter 340 for frequency selection. The second filter 340 allows signals within a specific frequency range to pass through according to its set frequency characteristics, and suppresses signals of other frequencies.

[0092] In the above embodiment, the second filter 340 can ensure that signals of a specific frequency can pass through. The second filter 340 can allow signals within a specific frequency range to pass through while suppressing signals of other frequencies, thereby ensuring the quality of signal transmission and avoiding interference with communication caused by signals of other frequencies.

[0093] The embodiments of the present application also provide a signal transceiving system, which includes any of the above signal transceiving devices and any of the above signal receiving devices.

[0094] FIG. 6 is a block diagram of a signal receiving system 400 according to an embodiment of the present application.

[0095] As shown in FIG. 6, the signal transceiving system includes a signal transceiving device 200A and a signal receiving device 300A.

[0096] Specifically, when in a sub-band duplex transceiver separation scenario, the spectrum is divided into multiple sub-bands, a part of the sub-bands are used for uplink (from terminal device to base station) communication, and another part of the sub-bands are used for downlink (from base station to terminal device) communication. In this way, bidirectional communication can be realized at the same time, so the transmission and reception functions are physically separated, that is, the signal transceiver system needs a dedicated transmission link and a reception link, respectively responsible for signal transmission and reception. For example, independent transmit antennas and receive antennas can be provided, or transceiver separation can be achieved through different radio frequency paths and circuits. In some embodiments, different signal processing algorithms and links are used for uplink signals and downlink signals. For example, uplink signals may need to be processed by specific amplification, filtering and modulation, while downlink signals need more signal channels for signal transmission.

[0097] Specifically, in the signal transceiver device 200A, the first baseband unit 260 is configured to send baseband signals to the intermediate frequency transmitting chip 210, the intermediate frequency transmitting chip 210 is configured to convert the baseband signals to radio frequency signals and convert them into analog signals, the hybrid beamforming network 230 is configured to map the signals output by the intermediate frequency transmitting chip 210 to channels and expand the signal transmission channels, and is also configured to perform beamforming on the signals output by the intermediate frequency transmitting chip 210; the power amplifier 240 is configured to amplify the signals processed by the hybrid beamforming network 230, and the amplified signals are transmitted to the antenna 270 for transmission. The first low noise amplifier 250 is configured to amplify the signals received by the antenna 270, and the first intermediate frequency receiving chip 220 is configured to convert the amplified signals of the first low noise amplifier 250 into digital signals and convert the digital signals to baseband signals; the baseband unit 260 is configured to receive the digital signals sent by the first intermediate frequency receiving chip 220.

[0098] For example, referring to FIG. 6, the number of signal transmission channels of the first baseband unit 260 sending signals to the intermediate frequency transmitting chip 210 is 256, which matches the processing capacity of the first baseband unit 260; the number of transmission channels of the signals output by the intermediate frequency transmitting chip 210 is 256, and after channel mapping by the hybrid beamforming network 230, the number of expanded signal transmission channels is 480; when the first low noise amplifier 250 amplifies the signals received by the antenna 270 and transmits them to the first intermediate frequency receiving chip 220, the number of signal transmission channels is still 480. Because the processing capacity of the first baseband unit 260 is limited in this embodiment, the number of signal transmission channels of the first intermediate frequency receiving chip 220 sending signals to the baseband unit 260 needs to be reduced to 256. Specifically, the reduction of the number of signal transmission channels between the first intermediate frequency receiving chip 220 and the first baseband unit 260 is achieved by channel dimension reduction performed by both the first intermediate frequency receiving chip 220 and the first baseband unit 260.

[0099] Specifically, in some embodiments, after the first low-noise amplifier 250 amplifies the signal, the first intermediate frequency receiving chip 220 can reduce the dimension of the digital signal according to the actual signal processing requirements, and then send it to the first baseband unit 260; in some embodiments, the first baseband unit 260 can also reduce the dimension of the digital signal again according to the actual signal processing requirements.

[0100] Specifically, for the signal receiving device 300A, the antenna 330 receives radio frequency signals from space, and the signals received by the antenna 330 first enter the second low-noise amplifier 320. The second low-noise amplifier 320 amplifies the received signals, and the amplified signals are transmitted to the second intermediate frequency receiving chip 310. The second intermediate frequency receiving chip 310 converts the signals amplified by the second low-noise amplifier 320 into digital signals through an analog-to-digital conversion function, and frequency converts to a baseband, and sends it to the first baseband unit 260, preparing for subsequent signal demodulation, decoding and other operations.

[0101] For example, referring to FIG. 6, the number of signal transmission channels of the second low-noise amplifier 320 sending signals to the second intermediate frequency receiving chip 310 is 120, and the number of signal transmission channels of the second intermediate frequency receiving chip 310 sending signals to the first baseband unit 260 is also 120. This is because the processing capacity of the first baseband unit 260 in this embodiment can accommodate more than 120 transmission channels, so it does not need to perform channel dimension reduction processing.

[0102] FIG. 7 is a schematic diagram of a sky surface design according to an embodiment of the present application.

[0103] As shown in FIG. 7, the sky surface can be divided into different regions according to actual conditions. The sky surface can be set as a signal receiving region and a signal transceiving region, and any one of the above signal transceiving devices is arranged in the signal transceiving region, and any one of the above signal receiving devices is arranged in the signal receiving region.

[0104] FIG. 8 is a block diagram of a signal receiving system 500 according to an embodiment of the present application.

[0105] As shown in FIG. 8, the signal transceiving system includes a signal transceiving device 200A and two signal receiving devices 300A.

[0106] Specifically, in the U-shaped array transceiving separation scenario, the antenna array is arranged in a U shape, and the transceiving antenna and the receiving antenna are arranged separately in the U-shaped array. The transceiving antenna and the receiving antenna are located at different positions of the U shape to realize transceiving separation, which can reduce the interference of the transmitted signal on the received signal and improve the reception quality of the signal.

[0107] FIG. 9 is a schematic diagram of a U-shaped array transceiving separation antenna design in a related art according to an embodiment of the present application.

[0108] As shown in FIG. 9, the receiving antennas are located at different positions of the U-shaped array for receiving signals from different directions, and the positions and directions of the receiving antennas also affect the quality and strength of the received signals. By reasonably arranging the receiving antennas, the sensitivity and anti-interference ability of the received signals can be improved. The transceiving antenna is located at the middle position of the U-shaped array, and since the transceiving antenna and the receiving antennas are separated in the U-shaped array, specific signal processing techniques need to be used to separate the transmitted signals and the received signals to ensure that the received signals are not interfered by the transmitted signals and can be accurately processed and demodulated.

[0109] Specifically, in the signal transceiving device 200A, the first baseband unit 260 is configured to send the baseband signals to the intermediate frequency transmitting chip 210, the intermediate frequency transmitting chip 210 is configured to convert the baseband signals to radio frequency signals and convert them into analog signals, the hybrid beamforming network 230 is configured to perform channel mapping on the signals output by the intermediate frequency transmitting chip 210 and expand the signal transmission channels, and is also configured to perform beamforming on the signals output by the intermediate frequency transmitting chip 210; the power amplifier 240 is configured to amplify the signals processed by the hybrid beamforming network 230, and the amplified signals are transmitted to the antenna 270 for transmission. The first low-noise amplifier 250 is configured to amplify the signals received by the antenna 270, and the first intermediate frequency receiving chip 220 is configured to convert the signals amplified by the first low-noise amplifier 250 into digital signals and convert the digital signals to baseband signals; the first baseband unit 260 is configured to receive the digital signals sent by the first intermediate frequency receiving chip 220.

[0110] For example, as shown in FIG. 8, the number of signal transmission channels of the first baseband unit 260 sending signals to the intermediate frequency transmitting chip 210 is 256, which matches the processing capacity of the first baseband unit 260; the number of signal transmission channels of the intermediate frequency transmitting chip 210 outputting signals is 256, and after channel mapping by the hybrid beamforming network 230, the number of expanded signal transmission channels is 480; when the first low-noise amplifier 250 amplifies the signals received by the antenna 270 and transmits them to the first intermediate frequency receiving chip 220, the number of signal transmission channels is still 480. Because the processing capacity of the first baseband unit 260 is limited in this embodiment, the number of signal transmission channels of the first intermediate frequency receiving chip 220 sending signals to the first baseband unit 260 needs to be reduced to 256. Specifically, the reduction of the number of signal transmission channels between the first intermediate frequency receiving chip 220 and the first baseband unit 260 is realized by channel mapping performed by both the first intermediate frequency receiving chip 220 and the first baseband unit 260.

[0111] Specifically, in some embodiments, the first intermediate frequency receiving chip 220 can reduce the dimension of the digital signal according to the actual signal processing requirement after converting the signal amplified by the first low noise amplifier 250 into a digital signal, and then send it to the first baseband unit 260; in some embodiments, the first baseband unit 260 can also reduce the dimension of the digital signal according to the actual signal processing requirement.

[0112] Specifically, for two signal receiving devices 300A, the antenna 330 receives radio frequency signals from space, and the signals received by the antenna 330 first enter the second low noise amplifier 320. The second low noise amplifier 320 amplifies the received signals, and the amplified signals are transmitted to the second intermediate frequency receiving chip 310. The second intermediate frequency receiving chip 310 converts the signals amplified by the second low noise amplifier 320 into digital signals through the analog-to-digital conversion function, and frequency converts to the baseband, and sends to the baseband unit 260, to prepare for subsequent signal demodulation, decoding and other operations.

[0113] For example, referring to FIG. 8, the number of signal transmission channels of the second low noise amplifier 320 sending signals to the second intermediate frequency receiving chip 310 is 256, and the number of signal transmission channels of the second intermediate frequency receiving chip 310 sending signals to the first baseband unit 260 is reduced to 128. This is because the processing capacity of the baseband unit 260 in this embodiment can accommodate a transmission channel number lower than 256, so channel dimension reduction processing is required.

[0114] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A signal transceiver device, characterized in that, It includes a first baseband unit, a signal transmission link, and a signal reception link. The signal transmission link includes an intermediate frequency (IF) transmitter chip, a hybrid beamforming network, and a power amplifier. The signal reception link includes a first low-noise amplifier and a first IF receiver chip. The hybrid beamforming network is connected between the intermediate frequency transmitting chip and the power amplifier, and the baseband unit is connected to the intermediate frequency transmitting chip and the first intermediate frequency receiving chip respectively. The first baseband unit is used to transmit the baseband signal to the intermediate frequency (IF) transmitter chip. The IF transmitter chip is used to convert the baseband signal to radio frequency (RF) and convert it into an analog signal. The hybrid beamforming network is used to perform channel mapping on the signal output by the IF transmitter chip and expand the signal transmission channel. It is also used to perform analog weighting on the signal output by the IF transmitter chip. The power amplifier is used to amplify the signal processed by the hybrid beamforming network. The amplified signal is then transmitted to the antenna for transmission. The first low-noise amplifier is used to amplify the signal received by the antenna, the first intermediate frequency receiving chip is used to convert the signal amplified by the first low-noise amplifier into a digital signal, and convert the digital signal to the baseband; the first baseband unit is used to receive the digital signal sent by the first intermediate frequency receiving chip.

2. The signal transceiver device according to claim 1, characterized in that, The number of signal transmission channels for the output signal of the intermediate frequency transmitting chip is different from the number of signal transmission channels for the signal received by the first intermediate frequency receiving chip.

3. The signal transceiver according to claim 1, characterized in that, The signal transceiver includes an antenna and a circulator. The circulator includes a first end, a second end, and a third end. The first end of the circulator is connected to the antenna, the second end of the circulator is connected to the power amplifier, and the third end of the circulator is connected to the first low-noise amplifier. The circulator is used to transmit the signal amplified by the power amplifier to the antenna for transmission, or to transmit the signal received by the antenna to the first low-noise amplifier.

4. The signal transceiver according to claim 3, characterized in that, The signal transceiver also includes a first filter; the first end of the circulator is connected to the antenna through the first filter.

5. The signal transceiver according to claim 4, characterized in that, The signal transceiver also includes a first switching circuit, which is connected between the circulator and the first low-noise amplifier, for switching the conduction state of the signal receiving link and the circulator.

6. The signal transceiver according to claim 1, characterized in that, The signal transceiver also includes a receiving antenna and a transmitting antenna; The receiving antenna is connected to the first low-noise amplifier and is used to transmit the received signal to the first low-noise amplifier. The transmitting antenna is connected to the power amplifier and is used to transmit the signal amplified by the power amplifier.

7. A signal receiving device, characterized in that, It includes a second intermediate frequency (IF) receiver chip, a second low-noise amplifier, and a second baseband unit; the second low-noise amplifier is used to amplify the signal received by the antenna, the second IF receiver chip is used to convert the signal amplified by the second IF amplifier into a digital signal, convert the digital signal to the baseband, and send the digital signal to the baseband unit for processing.

8. The signal receiving device according to claim 7, characterized in that, The signal receiving device also includes an antenna and a second filter; The second filter is connected between the antenna and the second low-noise amplifier; The second filter is used to filter the signal received by the antenna and send it to the second low-noise amplifier.

9. A signal transceiver system, characterized in that, It includes the signal transceiver device according to any one of claims 1 to 6 and the signal receiving device according to any one of claims 7 to 8.

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