Signal communication terminal and signal communication system

Abstract

The present invention discloses a signal communication terminal and a signal communication system. The signal communication terminal comprises a first antenna, a first antenna switching circuit, a second antenna switching circuit, a routing circuit and a signal processing circuit. A first path and a second path are arranged between the routing circuit and the first antenna. The first antenna switching circuit is arranged between the first antenna and the first path and the second path. The second antenna switching circuit is arranged between the routing circuit and the first path and the second path, so as to solve the technical problem in the prior art that when the mobile signal is weak, the broadband network speed of the device switching from the mobile network to the broadband network will also become very slow.

Description

Technical Field

[0001] The invention relates to a signal communication terminal and a signal communication system, belonging to the technical field of communications. Background Art

[0002] In the existing technology, there is a device on the market that can convert 3G, 4G, 5G and other mobile networks into broadband networks (such as WIFI hotspots or network port signals), usually USB Dongle, 3G / 4G network card, MIFI, portable WIFI, portable WIFI, CPE, 4G router and other products. These products can provide WIFI hotspots or network signals for mobile phones, tablets or computers and other terminal devices without connecting to broadband networks. Usually, such devices have mobile network baseband processors (including but not limited to GSM, EDGE, CDMA, WCDMA, 4G LTE, 5G and other network standards), RF transceiver, storage chip, filter, duplexer, RF switch, WIFI chip or network port chip, SIM card and other parts, mobile network antenna, WIFI antenna, network port; the basic principle is to receive the base station signal through the mobile network antenna, and then pass the signal through the RF switch, duplexer, filter to the RF transceiver for processing, and send the processed signal to the baseband processor to convert it into data and send it to the WIFI chip or network port chip. The WIFI chip or network port chip converts the data of the baseband chip into a 2.4GHz or 5GHz WIFI hotspot wireless signal and then transmits it through the WIFI antenna. The terminal within the coverage range of the WIFI antenna The terminal device can use the signal of the hotspot. At the same time, the WIFI chip or network port chip converts the baseband data into a network port signal through the network port conversion chip and sends it to the wired network interface. The terminal device can access the Internet through the network cable connected to the device network port; conversely, the terminal device's priority network data or wireless WIFI signal also enters the network port and WIFI antenna, and the data and signals of the network port and WIFI antenna are sent to the WIFI chip or network port chip. The WIFI chip or network port chip processes the signal and data and sends it to the baseband chip. The baseband chip processes the data and sends it to the RF transceiver. After passing through filters, duplexers, RF switches and other devices, the signal is transmitted to the base station through the mobile network antenna.

[0003] Generally, devices that convert mobile networks to broadband networks can only work better when the mobile network signal is good. When the mobile signal is weak, the broadband network speed of the devices that convert mobile networks to broadband networks will also become very slow. When the mobile signal is very weak, they will not work at all. Summary of the invention

[0004] In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a signal communication terminal and a signal communication system to solve the technical problem in the prior art that when the mobile signal is weak, the broadband network speed of the device converting the mobile network to the broadband network will also become very slow.

[0005] In order to achieve the above object, the present invention provides a signal communication terminal, the signal communication terminal comprising:

[0006] A first antenna for receiving a first downlink signal and sending a first uplink signal;

[0007] a routing circuit, wherein a first path and a second path are provided between the first antennas and are used to receive a first uplink signal and send a first downlink signal, wherein the second path is provided with a first signal processing circuit for converting and amplifying the first downlink signal and the first uplink signal;

[0008] A first antenna switching circuit is provided between the first antenna and the first path and the second path;

[0009] The second antenna switching circuit is arranged between the routing circuit and the first path and the second path; and is used to work together with the first antenna switching circuit to conduct the second path when the strength of the first downlink signal is lower than the preset first signal strength, so as to output the first downlink signal after conversion and amplification through the routing circuit or output the first uplink signal after conversion and amplification through the first antenna; or to conduct the first path when the strength of the first downlink signal is greater than or equal to the preset first signal strength, so as to output the first downlink signal through the routing circuit or output the first uplink signal through the first antenna.

[0010] Optionally, the first signal processing circuit includes a first end and a second end, the first antenna switching circuit has a first end, a second end and a third end, the second antenna switching circuit has a first end, a second end and a third end, the routing circuit has a first end, the first end of the first signal processing circuit is connected to the first end of the first antenna switching circuit, the second end of the first signal processing circuit is connected to the first end of the second antenna switching circuit; the second end of the first antenna switching circuit is connected to the second end of the second antenna switching circuit, the third end of the first antenna switching circuit is connected to the first antenna; the third end of the second antenna switching circuit is connected to the first end of the routing circuit.

[0011] Optionally, the first antenna switching circuit further includes a controlled end, and the second antenna switching circuit further includes a controlled end;

[0012] The controlled end of the first antenna switching circuit and the controlled end of the second antenna switching circuit are both connected to the routing circuit; or,

[0013] The signal communication terminal further includes a first control circuit, and the controlled end of the first antenna switching circuit and the controlled end of the second antenna switching circuit are both connected to the first control circuit.

[0014] Optionally, the signal communication terminal also includes a wirelessly connected second antenna and a third antenna, the second antenna and the third antenna are arranged between the second antenna switching circuit and the routing circuit, the second antenna is connected to the third end of the second antenna switching circuit, and the routing circuit is connected to the third antenna.

[0015] Optionally, the signal communication terminal further includes a second signal processing circuit, a first combining circuit and a second combining circuit, wherein the first combining circuit is arranged between the first antenna and the first signal processing circuit and the second signal processing circuit, and the second combining circuit is arranged between the routing circuit and the first signal processing circuit and the second signal processing circuit;

[0016] The first combining circuit is used to combine the output frequency bands of the first signal processing circuit and the second signal processing circuit into an uplink signal and then output it to the first antenna, or to split the downlink signal input by the first antenna and then input it to the first signal processing circuit and the second signal processing circuit respectively;

[0017] The second combining circuit is used to combine the output frequency bands of the first signal processing circuit and the second signal processing circuit into a downlink signal and then output it to the routing circuit, or to split the uplink signal input by the routing circuit and then input it to the first signal processing circuit and the second signal processing circuit respectively.

[0018] Optionally, the first signal processing circuit or the second signal processing circuit includes at least one pair of a first uplink signal processing branch and a first downlink signal processing branch, and a first duplex branch and a second duplex branch corresponding to the pair of processing branches; the first duplex processing branch has an input and output end, an uplink signal input end, and a downlink signal output end; the second duplex processing branch has an input and output end, an uplink signal output end, and a downlink signal input end; the first downlink signal processing branch includes an input end and a first output end; the first uplink signal processing branch includes a first input end and an output end;

[0019] The downlink signal output end of the first duplex processing branch is connected to the input end of the first downlink signal processing branch, the uplink signal input end of the first duplex processing branch is connected to the output end of the first uplink signal processing branch, the input and output ends of the first duplex branch are the first end of the first signal processing circuit or the first end of the second signal processing circuit; the downlink signal input end of the second duplex processing branch is connected to the first output end of the first downlink signal processing branch; the uplink signal output end of the second duplex processing branch is connected to the first input end of the first uplink signal processing branch, and the input and output ends of the second duplex branch are the second end of the first signal processing circuit or the second end of the second signal processing circuit.

[0020] Optionally, the first uplink signal processing branch includes an amplifier 1 and an attenuator 1 connected in sequence;

[0021] The first downlink signal processing branch includes an amplifier 2 and an attenuator 2 which are connected in sequence.

[0022] Optionally, it also includes a diversity antenna, a fourth switching circuit, a sixth switching circuit and a third signal processing circuit, the fourth switching circuit is respectively connected to the diversity antenna, the sixth switching circuit and the third signal processing circuit; the sixth switching circuit is respectively connected to the routing circuit, the fourth switching circuit and the third signal processing circuit.

[0023] Optionally, the third signal processing circuit includes at least one downlink;

[0024] When the number of the downlinks is multiple, the signal communication terminal further includes a third combining circuit and a fourth combining circuit, and the multiple downlinks are arranged between the fourth switching circuit and the sixth switching circuit through the third combining circuit and the fourth combining circuit.

[0025] In order to achieve the above object, the present invention further proposes a signal communication system, the signal communication system base station, mobile terminal, routing terminal and the signal communication terminal as described above.

[0026] The present invention obtains a first downlink signal through a first antenna, and a routing circuit obtains the first uplink signal. The signal processing circuit amplifies the first downlink signal or the first uplink signal. When the strength of the first downlink signal is lower than the preset first signal strength, the first antenna switching circuit conducts the path between the first (base station) antenna and the first signal processing circuit to output the first uplink signal after conversion and amplification through the first antenna; or when the strength of the first downlink signal is greater than or equal to the preset first signal strength, the first (base station) antenna and the routing circuit are conducted to output the first uplink signal through the first antenna; when the strength of the first downlink signal is lower than the preset first signal strength, the second antenna switching circuit conducts the path between the routing circuit and the first signal processing circuit to output the first downlink signal after conversion and amplification through the routing circuit; or when the strength of the first downlink signal is greater than or equal to the preset first signal strength, the path between the first (base station) antenna and the routing circuit is conducted to output the first downlink signal through the routing circuit; in the above scheme, when the strength of the downlink signal is lower than the preset first signal strength, the signal processing circuit conducts conversion and amplification on the first downlink signal and the first uplink signal, so as to conveniently and quickly provide the enhanced signal to the MIFI and other devices connected to the routing circuit. The invention solves the technical problem in the prior art that when the mobile signal is weak, the broadband network speed of the device switching from the mobile network to the broadband network will also become very slow. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of a module of a signal communication terminal in one embodiment.

[0028] Figure 2 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0029] Figure 3 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0030] Figure 4 Schematic diagram of a module of a signal communication terminal in one embodiment.

[0031] Figure 5 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0032] Figure 6 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0033] Figure 7 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0034] Figure 8FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0035] Fig. 9 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0037] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0038] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0040] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0041] In order to solve the technical problem of inaccurate self-excitation determination in the prior art, the present invention provides a signal communication terminal and a signal communication system.

[0042] In one embodiment, if Figure 1 As shown, the signal communication terminal includes a first antenna 10, a first antenna switching circuit 10, a second antenna 200 switching circuit 40, a routing circuit 50 and a first signal processing circuit 30. The first antenna switching circuit 10 is arranged between the first antenna 10 and the first path and the second path, and the second antenna 200 switching circuit 40 is arranged between the routing circuit 50 and the first path and the second path. The first antenna 10, the first antenna switching circuit 10, the second antenna 200 switching circuit 40, and the first signal processing circuit 30 constitute a signal enhancement circuit.

[0043] Among them, the first antenna 10 receives a first downlink signal and sends a first uplink signal, and the routing circuit 50 is provided with a first path and a second path between the first antenna 10, and is used to receive the first uplink signal and send the first downlink signal, and the second path is provided with a first signal processing circuit 30 for converting and amplifying the first downlink signal and the first uplink signal; the second antenna 200 switching circuit 40 works together with the first antenna switching circuit 10 to turn on the second path when the strength of the first downlink signal is lower than the preset first signal strength, so as to output the first downlink signal after conversion and amplification through the routing circuit 50 or output the first uplink signal after conversion and amplification through the first antenna 10; or when the strength of the first downlink signal is greater than or equal to the preset first signal strength, turn on the first path to output the first downlink signal through the routing circuit 50 or output the first uplink signal through the first antenna 10.

[0044] Specifically: when the strength of the first downlink signal is lower than the preset first signal strength, the first antenna switching circuit 10 switches on the second path between the first (base station) antenna and the first signal processing circuit 30, so as to convert and amplify the first uplink signal and then output it through the first antenna 10; or when the strength of the first downlink signal is greater than or equal to the preset first signal strength, the first path between the first (base station) antenna and the routing circuit 50 is switched on, so as to directly output the unprocessed first uplink signal through the first antenna 10; when the strength of the first downlink signal is lower than the preset first signal strength, the second antenna 200 switching circuit 40 switches on the path between the routing circuit 50 and the first signal processing circuit 30, so as to convert and amplify the first uplink signal and then output it through the routing circuit 50; or when the strength of the first downlink signal is greater than or equal to the preset first signal strength, the path between the first (base station) antenna and the routing circuit 50 is switched on, so as to directly output the unprocessed first downlink signal through the routing circuit 50. When the strength of the downlink signal is lower than the preset first signal strength, the signal processing circuit of the above scheme converts and amplifies the first downlink signal and the first uplink signal, so as to conveniently and quickly provide the enhanced signal to the MIFI and other devices connected to the routing circuit 50. Therefore, the technical problem in the prior art that the broadband network speed of the device switching from the mobile network to the broadband network will also become very slow when the mobile signal is weak is solved.

[0045] In the case of weak wireless mobile signals, end consumers can choose wireless signal boosters to amplify the signals, usually repeaters, full-cell phones, mobile phone signal amplifiers, etc. These signal boosters are usually installed in home, office, car, shopping mall, subway, mountainous areas and other application scenarios. As long as there is a place where the mobile signal is weak or even non-existent, you can consider using such signal boosters to amplify the signal. Usually, such signal boosters have components such as duplexers, analog or digital filters, amplifiers, detectors, controllers, RF cables, and antennas. The basic principle is to receive the base station signal through the BS (base station) end antenna and enter the downlink for amplification and then transmit it through the MS (mobile station) end antenna to cover the area with weak signals; the MS end antenna receives the mobile phone signal in the weak signal area and enters the uplink for amplification and other processing before transmitting it to the base station through the BS end antenna.

[0046] General signal boosters have components such as duplexers, analog or digital filters, amplifiers, detectors, controllers, RF cables, antennas, etc., which make them larger in size, complex in circuits, and high in cost. They are not suitable for providing signals for devices that convert mobile networks to broadband networks.

[0047] In the solution of the present application, the signal enhancement circuit, namely the first signal circuit, is directly added to the routing device, and the antenna of the routing device and the routing circuit 50 are directly used to implement some functions of the signal enhancer, thereby achieving the effects of signal amplification and size reduction.

[0048] Further effects: providing WIFI hotspots or broadband networks in various scenarios where the signal is strong or weak, or even no signal can be found; when the signal is strong, the signal enhancement circuit can be turned off to reduce power consumption, and the signal enhancer can be bypassed to directly allow the mobile network to the broadband network device to receive external signals, so that the signal enhancer can be completely avoided in a strong signal environment. Interference with the routing circuit 50 and the base station.

[0049] Optionally, the circuit connection scheme of the above embodiment can be implemented with reference to the following connection relationship: Figure 1 As shown, the first signal processing circuit 30 includes a first end and a second end, the first antenna switching circuit 10 has a first end, a second end and a third end, the second antenna 200 switching circuit 40 has a first end, a second end and a third end, the routing circuit 50 has a first end, the first end of the first signal processing circuit 30 is connected to the first end of the first antenna switching circuit 10, the second end of the first signal processing circuit 30 is connected to the first end of the second antenna 200 switching circuit 40; the second end of the first antenna switching circuit 10 is connected to the second end of the second antenna 200 switching circuit 40, the third end of the first antenna switching circuit 10 is connected to the first antenna 10; the third end of the first antenna switching circuit 10 is connected to the first end of the routing circuit 50.

[0050] In one embodiment, the first antenna switching circuit 10 further includes a controlled end, and the second antenna 200 switching circuit 40 further includes a controlled end, and both the controlled end of the first antenna switching circuit 10 and the controlled end of the second antenna 200 switching circuit 40 are connected to the routing circuit 50.

[0051] In another possible embodiment, if Figure 4 As shown, the signal communication terminal further includes a first control circuit 60 , and the controlled end of the first antenna switching circuit 10 and the controlled end of the second antenna 200 switching circuit 40 are both connected to the first control circuit 60 .

[0052] Among them, the first antenna switching circuit 10 conducts the corresponding path according to the strength of the downlink signal, and the second antenna 200 switching circuit 40 conducts the corresponding path according to the strength of the downlink signal. Specifically, when the first antenna switching circuit 10 is greater than or equal to the first preset signal strength, the path between the first end and the second end of the first antenna switching circuit 10 is conducted, and when the strength of the downlink signal is less than the first preset signal strength, the first antenna switching circuit 10 conducts the path between the first end and the third end of the first antenna switching circuit 10; when the strength of the downlink signal is greater than or equal to the second preset signal strength, the second antenna 200 switching circuit 40 conducts the path between the first end and the second end of the second antenna 200 switching circuit 40, and when the strength of the downlink signal is less than the second preset signal strength, the first antenna switching circuit 10 conducts the path between the first end and the third end of the second antenna 200 switching circuit 40. Through the above process, the switching between various paths can be flexibly realized. The control process at this time can be implemented by the routing circuit 50, or by the first control circuit 60 set separately.

[0053] Optionally, refer to Figure 2 , 3 as well as Figure 5-Figure 9 As shown, the first antenna switching circuit 10 and the second antenna 200 switching circuit 40 can be implemented by a single-pole double-throw RF switch, wherein the single-pole double-throw RF switch can flexibly switch the conduction relationship according to the type and strength of the uplink and downlink signals. It should be noted that the routing signal and the mobile signal are both uplink signals.

[0054] In one embodiment, if Figure 4 As shown, the signal communication terminal further includes a detection circuit 70 and a second control circuit 80, the first signal processing circuit 30 includes a detection end and a feedback input end, the input end of the detection circuit 70 is connected to the detection end of the first signal processing circuit 30, the detection end of the second control circuit 80 is connected to the output end of the detection circuit 70, and the feedback signal output end of the second control circuit 80 is connected to the feedback input end of the first signal processing circuit 30;

[0055] The detection circuit 70 detects the signal strength of the first signal processing circuit 30; the second control circuit 80 outputs an adjustment control signal according to the signal strength to feedback adjust the signal strength. It should be noted that the detection circuit 70 can be composed of multiple detectors. Figure 2 as well as Figure 5-8As shown. The second control circuit 80 can be implemented by processor 1 / 2. The signal of the downlink is detected by the detector, and the signal is usually detected at a certain point in the downlink, which can be anywhere between the attenuator 3 and the duplexer 4. The detector 4 converts the detected signal into a signal (usually a voltage) that can be processed by the processor 1. The processor 1 generates a control signal to control the attenuation value of the attenuator 3 by processing the signal of the detector, thereby realizing the signal control of the downlink, such as controlling the signal strength, interference and other parameters of the downlink, thereby preventing the signal from being too strong or reducing interference. The detector is usually a detector diode or a logarithmic detector, and the controller / processor is usually a microprocessor such as a single-chip microcomputer, FPGA, CPU, or an analog negative feedback control circuit; according to the specific product needs, the amplification link may also have multiple attenuators or amplifiers or filters and other devices, but this scheme only illustrates the architecture of a common amplification link, and only extracts the necessary parts to illustrate how the amplification link is combined with the circuit of the device part such as MIFI.

[0056] In one embodiment, if Figure 3 As shown, the signal communication terminal also includes a wirelessly connected second antenna 200 and a third antenna 210. The second antenna 200 and the third antenna 210 are arranged between the second antenna 200 switching circuit 40 and the routing circuit 50. The second antenna 200 is connected to the third end of the second antenna 200 switching circuit 40, and the routing circuit 50 is connected to the third antenna 210.

[0057] Among them, the two transceiver antennas of the second antenna 200 and the third antenna 210 transmit wireless signals to each other through space. In this way, the routing circuit 50 can be more flexibly combined with the first antenna 10 and the signal enhancement circuit. It can be connected wirelessly or by wired connection, which is convenient for wiring and carrying, so that when the user carries the circuit component assembled by the first antenna 10, the first antenna switching circuit 10, the second antenna 200 switching circuit 40, and the first signal processing circuit 30 to form a signal enhancement circuit, within a certain distance, it can also conveniently enhance the signal. When the signal is weak, it can also achieve signal enhancement while preventing the signal from being too strong or reducing interference by switching the path when the signal is too strong.

[0058] Optionally, refer to Figure 5 and Figure 6As shown, the signal communication terminal further includes a third signal processing circuit 190, a first combining circuit and a second combining circuit, wherein the first combining circuit is arranged between the first antenna 10 and the first signal processing circuit 30 and the third signal processing circuit 190, and the second combining circuit is arranged between the routing circuit 50 and the first signal processing circuit 30 and the third signal processing circuit 190;

[0059] Among them, the first combining circuit combines the output frequency bands of the first signal processing circuit 30 and the third signal processing circuit 190 into an uplink signal and outputs it to the first antenna 10, or splits the downlink signal input by the first antenna 10 and inputs them respectively to the first signal processing circuit 30 and the third signal processing circuit 190; the second combining circuit combines the output frequency bands of the first signal processing circuit 30 and the third signal processing circuit 190 into a downlink signal and outputs it to the routing circuit 50, or splits the uplink signal input by the routing circuit 50 and inputs them respectively to the first signal processing circuit 30 and the third signal processing circuit 190.

[0060] Optionally, refer to Figure 2 , 3 , 5, 6, 8, and 9, the first signal processing circuit 30 or the third signal processing circuit 190 includes at least one pair of first uplink signal processing branches 301 and first downlink signal processing branches 302, and a first duplex branch and a second duplex branch corresponding to the pair of processing branches; the first duplex processing branch 303 has an input and output end, an uplink signal input end, and a downlink signal output end; the second duplex processing branch 304 has an input and output end, an uplink signal output end, and a downlink signal input end; the first downlink signal processing branch 302 includes an input end and a first output end; the first uplink signal processing branch 301 includes a first input end and an output end;

[0061] The downlink signal output end of the first duplex processing branch 303 is connected to the input end of the first downlink signal processing branch 302, the uplink signal input end of the first duplex processing branch 303 is connected to the output end of the first uplink signal processing branch 301, and the input and output ends of the first duplex branch are the first end of the first signal processing circuit 30 or the first end of the third signal processing circuit 190; the downlink signal input end of the second duplex processing branch 304 is connected to the first output end of the first downlink signal processing branch 302; the uplink signal output end of the second duplex processing branch 304 is connected to the first input end of the first uplink signal processing branch 301, and the input and output ends of the second duplex branch are the second end of the first signal processing circuit 30 or the second end of the third signal processing circuit 190.

[0062] Among them, when the first downlink signal strength is relatively low, the first downlink signal processing branch 302 outputs the first downlink signal after conversion and amplification processing to the routing circuit 50, and the first uplink signal processing branch 301 converts and amplifies the first uplink signal received by the routing circuit 50 and outputs it through the first antenna 10. By switching the switching circuit, it is also possible to prevent the signal from being too strong or reduce interference while achieving signal enhancement. By switching the line after signal enhancement, the self-excitation effect of the signal enhancement circuit formed by the first antenna 10, the first antenna switching circuit 10, the second antenna 200 switching circuit 40, and the first signal processing circuit 30 can be avoided. Avoid the influence of the self-excitation signal on the routing or the base station connected to the first antenna 10.

[0063] Optionally, the first duplex processing branch 303 and the second duplex processing branch 304 may be implemented by using a duplexer or a synchronous switch. Figure 2 , 3 , duplexers 1, 2, 3, 4 shown in 5, 6, 8, and Figure 8 Shown are a synchronous switch 1 and a synchronous switch 2.

[0064] Optionally, the signal communication terminal further includes a third switching circuit 90 and a fourth switching circuit 110 , wherein the third switching circuit is arranged between the first combining circuit and the second signal processing circuit 190 , and the fourth switching circuit is arranged between the second combining circuit and the second signal processing circuit 190 .

[0065] The second signal processing circuit 190 refers to Figure 8 As shown in 1001, 1002, 1003, 1004 are implemented.

[0066] Optionally, refer to Figure 8 As shown, the signal communication terminal also includes a fourth antenna 200 connected to the third switching circuit 90 .

[0067] Optionally, refer to Figure 2 , 3 As shown in Figures 5, 6, 8 and 9, the first uplink signal processing branch 301 includes an amplifier 1 and an attenuator 1 connected in sequence. The first downlink signal processing branch 302 includes an amplifier 2 and an attenuator 2 connected in sequence.

[0068] Optionally, refer to Figure 7As shown, the signal communication terminal also includes a diversity antenna 160, a fifth switching circuit 170, a sixth switching circuit 180 and a third signal processing circuit 190, the fifth switching circuit 170 is respectively connected to the diversity antenna 160, the sixth switching circuit 180 and the third signal processing circuit 190; the sixth switching circuit 180 is respectively connected to the routing circuit 50, the fifth switching circuit 170 and the third signal processing circuit 190.

[0069] The fifth switching circuit 170 and the sixth switching circuit 180 may adopt Figure 7 The single-pole double-throw radio frequency switch 5 and the single-pole double-throw radio frequency switch 6 shown in are implemented.

[0070] Optionally, the third signal processing circuit includes at least one downlink;

[0071] When the number of the downlinks is multiple, the signal communication terminal further includes a third combining circuit and a fourth combining circuit, and the multiple downlinks are arranged between the fifth switching circuit 170 and the sixth switching circuit 180 through the third combining circuit and the fourth combining circuit.

[0072] Among them, in mobile communications, the base station will use two antennas to transmit downlink signals. Usually, devices such as MIFI and mobile communication devices such as mobile phones will use receive diversity technology. These devices use a main antenna that includes transmission and reception, and a separate downlink reception diversity reception antenna. In a signal environment that supports diversity reception, it can provide users with better signal effects than a single main antenna. Especially in high-speed applications such as WIFI, diversity reception is more important. Therefore, this solution also provides host + diversity reception technology. The above embodiment belongs to diversity reception. Diversity reception mainly adds a group of downlinks. The RF parameters and control of the added downlinks need to be consistent with the first group; if there are multiple frequency bands, each frequency band adds a group of downlinks or adds downlinks of some frequency bands, and uses a combiner to combine downlinks of different frequency bands. These downlinks share an additional BS downlink diversity antenna 160 and an additional MS downlink diversity antenna 160; the link architecture and control method are similar to the previous ones and will not be repeated.

[0073] It should be noted that when the gain of link 3 needs to be higher, the number of amplifiers in the link can be increased as needed, and the position of the amplifier added in the link is not restricted, but it is usually placed after the attenuator. At the same time, other devices such as filters can usually be added in the link as needed. Figure 7 As shown, the link can be implemented by using a DL filter 1, an amplifier 5, an attenuator 5 and a DL filter 2 connected in sequence.

[0074] Optionally, the combining circuit may be a power divider, a bridge, a dielectric combiner, a cavity combiner, a microstrip line or a stripline direct combiner, etc. In this case, a multi-band signal processing circuit 30 may be implemented, and the combiner serves as a link of different frequency bands.

[0075] In order to solve the above problem, the present invention further proposes a signal communication system, the signal communication system base station, mobile terminal, routing terminal and the signal communication terminal as described above.

[0076] It should be noted that, since the signal communication system of the present application includes all the steps of the above-mentioned signal communication terminal, the signal communication system can also implement all the solutions of the signal communication terminal and have the same beneficial effects, which will not be repeated here.

[0077] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A signal communication terminal, characterized in that: The signal communication terminal comprises: A first antenna for receiving a first downlink signal and sending a first uplink signal; a routing circuit, wherein a first path and a second path are provided between the routing circuit and the first antenna, and the routing circuit is used to receive a first uplink signal and send a first downlink signal, wherein the second path is provided with a first signal processing circuit for converting and amplifying the first downlink signal and the first uplink signal; A first antenna switching circuit is provided between the first antenna and the first path and the second path; a second antenna switching circuit, provided between the routing circuit and the first path and the second path; and used to work together with the first antenna switching circuit to conduct the second path when the strength of the first downlink signal is lower than a preset first signal strength, so as to output the first downlink signal after conversion and amplification through the routing circuit or to output the first uplink signal after conversion and amplification through the first antenna; or to conduct the first path when the strength of the first downlink signal is greater than or equal to the preset first signal strength, so as to output the first downlink signal through the routing circuit or to output the first uplink signal through the first antenna; The first signal processing circuit includes a first end and a second end, the first antenna switching circuit has a first end, a second end and a third end, the second antenna switching circuit has a first end, a second end and a third end, the routing circuit has a first end, the first signal processing circuit is connected to the first end of the first antenna switching circuit, the second end of the first signal processing circuit is connected to the first end of the second antenna switching circuit; the second end of the first antenna switching circuit is connected to the second end of the second antenna switching circuit, the third end of the first antenna switching circuit is connected to the first antenna; the third end of the second antenna switching circuit is connected to the first end of the routing circuit; The signal communication terminal further includes a second signal processing circuit, a first combining circuit and a second combining circuit, wherein the first combining circuit is arranged between the first antenna and the first signal processing circuit and the second signal processing circuit, and the second combining circuit is arranged between the routing circuit and the first signal processing circuit and the second signal processing circuit; The first combining circuit is used to combine the output frequency bands of the first signal processing circuit and the second signal processing circuit into an uplink signal and then output it to the first antenna, or to split the downlink signal input by the first antenna and then input it to the first signal processing circuit and the second signal processing circuit respectively; The second combining circuit is used to combine the output frequency bands of the first signal processing circuit and the second signal processing circuit into a downlink signal and then output it to the routing circuit, or to split the uplink signal input by the routing circuit and then input it to the first signal processing circuit and the second signal processing circuit respectively.

2. The signal communication terminal according to claim 1, characterized in that: The first antenna switching circuit further includes a controlled end, and the second antenna switching circuit further includes a controlled end; The controlled end of the first antenna switching circuit and the controlled end of the second antenna switching circuit are both connected to the routing circuit; or, The signal communication terminal further includes a first control circuit, and the controlled end of the first antenna switching circuit and the controlled end of the second antenna switching circuit are both connected to the first control circuit.

3. The signal communication terminal according to claim 1, characterized in that: The signal communication terminal also includes a wirelessly connected second antenna and a third antenna. The second antenna and the third antenna are arranged between the second antenna switching circuit and the routing circuit. The second antenna is connected to the third end of the second antenna switching circuit, and the routing circuit is connected to the third antenna.

4. The signal communication terminal according to claim 1, characterized in that: The first signal processing circuit or the second signal processing circuit comprises at least one pair of a first uplink signal processing branch and a first downlink signal processing branch, and a first duplex branch and a second duplex branch corresponding to the pair of processing branches; the first duplex processing branch has an input and output end, an uplink signal input end, and a downlink signal output end; The second duplex processing branch has an input and output end, an uplink signal output end and a downlink signal input end; the first downlink signal processing branch includes an input end and a first output end; the first uplink signal processing branch includes a first input end and an output end; The downlink signal output end of the first duplex processing branch is connected to the input end of the first downlink signal processing branch, the uplink signal input end of the first duplex processing branch is connected to the output end of the first uplink signal processing branch, the input and output ends of the first duplex branch are the first end of the first signal processing circuit or the first end of the second signal processing circuit; the downlink signal input end of the second duplex processing branch is connected to the first output end of the first downlink signal processing branch; the uplink signal output end of the second duplex processing branch is connected to the first input end of the first uplink signal processing branch, and the input and output ends of the second duplex branch are the second end of the first signal processing circuit or the second end of the second signal processing circuit.

5. The signal communication terminal according to claim 1, characterized in that: The signal communication terminal further includes a third switching circuit and a fourth switching circuit. The third switching circuit is arranged between the first combining circuit and the second signal processing circuit. The fourth switching circuit is arranged between the second combining circuit and the second signal processing circuit.

6. The signal communication terminal according to claim 1, characterized in that: The signal communication terminal also includes a diversity antenna, a fourth switching circuit, a sixth switching circuit and a third signal processing circuit. The fourth switching circuit is respectively connected to the diversity antenna, the sixth switching circuit and the third signal processing circuit; the sixth switching circuit is respectively connected to the routing circuit, the fourth switching circuit and the third signal processing circuit.

7. The signal communication terminal according to claim 6, characterized in that: The third signal processing circuit includes at least one downlink; When the number of the downlinks is multiple, the signal communication terminal further includes a third combining circuit and a fourth combining circuit, and the multiple downlinks are arranged between the fourth switching circuit and the sixth switching circuit through the third combining circuit and the fourth combining circuit.

8. A signal communication system, characterized in that: It comprises the signal communication system base station, a mobile terminal, a routing terminal and the signal communication terminal as described in any one of claims 1-7.

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