Signal communication terminal and signal communication system

Abstract

The present invention discloses a signal communication terminal and a signal communication system, wherein the signal communication terminal comprises at least one group of signal enhancement branches and a routing circuit, wherein the routing circuit is respectively connected to each signal enhancement branch. The signal enhancement branch comprises a first antenna, a second antenna, a first switching circuit, a second switching circuit, a first signal distribution circuit and a first signal processing circuit: the first switching circuit is respectively connected to the first antenna and the first signal processing circuit; the second switching circuit is respectively connected to the first signal processing circuit and the routing circuit; the first signal processing circuit is also connected to the second antenna, so as to solve the technical problem in the prior art that when the mobile signal is weak, the network speed of the broadband network after the conversion of the device 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 prior art, 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 a mobile network baseband first control circuit (including but not limited to GSM, EDGE, CDMA, WCDMA, 4G LTE, 5G and other network standards), baseband first control circuit, 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 first control circuit 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 transmits it through the WIFI antenna. The coverage range of the WIFI antenna The terminal devices inside 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 well when the mobile network signal is good. When the mobile signal is weak, the speed of the broadband network after the conversion will become very slow. When the mobile signal is very weak, it will not work at all. Summary of the invention

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose 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 network speed of the broadband network after the conversion of the mobile network to the broadband network device will also become very slow.

[0005] In order to achieve the above object, the present invention proposes a signal communication terminal, which includes at least one group of signal enhancement branches and routing circuits: Figure 1 )

[0006] The routing circuit is connected to each of the signal enhancement branches respectively, and is used to receive an uplink signal and send a downlink signal; and is used to output a corresponding first switching signal and a second switching signal according to the downlink signal;

[0007] The signal enhancement branch includes a first antenna, a second antenna, a first switching circuit, a second switching circuit, a first signal distribution circuit and a first signal processing circuit:

[0008] The first switching circuit is connected to the first antenna, the second switching circuit and the first signal processing circuit respectively; the second switching circuit is connected to the first signal distribution circuit and the routing circuit respectively; the first signal distribution circuit is also connected to the second antenna;

[0009] The first antenna is used to receive a first downlink signal and send a first uplink signal;

[0010] The second antenna is used to send a first downlink signal and receive a first uplink signal;

[0011] The first switching circuit is used to switch the connection end according to the first switching signal;

[0012] The second switching circuit is used to switch the connection end according to the second switching signal to work together with the first switching circuit to conduct the path between the first switching circuit, the first signal processing circuit and the second switching circuit when the strength of the first downlink signal is lower than the preset first signal strength, and / or to conduct the path between the first switching circuit, the first signal processing circuit and the second antenna to output the first downlink signal after conversion and amplification processing and / or the first uplink signal after conversion and amplification processing; or

[0013] When the strength of the first downlink signal is greater than or equal to a preset first signal strength, conducting a path between the first switching circuit and the second switching circuit to directly output the first downlink signal and / or the first uplink signal;

[0014] The first signal distribution circuit is used to split the first downlink signal into a first downlink signal and a second downlink signal according to the signal standard transmitted by the second antenna and the routing circuit; and is also used to split the first uplink signal into a first uplink sub-signal and a second uplink sub-signal according to the signal standard transmitted by the first antenna.

[0015] In order to achieve the above object, the present invention also proposes a signal communication system, the signal communication system base station, mobile terminal, routing terminal and the signal communication terminal as described above;

[0016] The signal communication system base station communicates with the first antenna of the signal communication terminal; the mobile terminal communicates with the second antenna; and the routing terminal communicates with the routing circuit.

[0017] The present invention receives a first downlink signal and sends a first uplink signal through the first antenna; the second antenna sends a first downlink signal and receives a first uplink signal; the second switching circuit works together with the first switching circuit to conduct the path between the first switching circuit, the first signal processing circuit and the second switching circuit when the strength of the first downlink signal is lower than a preset first signal strength, and / or conducts the path between the first switching circuit, the first signal processing circuit and the second antenna to output the first downlink signal after conversion and amplification processing and / or the first uplink signal after conversion and amplification processing; or, when the strength of the first downlink signal is greater than or equal to the preset first signal strength, conduct the first switching circuit The switching circuit and the second switching circuit are used to directly output the first downlink signal and / or the first uplink signal; 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 that the mobile device connected to the routing circuit or the mobile device connected to the second antenna can be provided with the enhanced signal conveniently and quickly; the first signal distribution circuit splits the first downlink signal into the first downlink signal and the second downlink signal according to the signal standard transmitted by the second antenna and the routing circuit; and is also used to split the first uplink signal into the first uplink sub-signal and the second uplink sub-signal according to the signal standard transmitted by the first antenna. The technical problem that the network speed of the broadband network after the conversion of the device from the mobile network to the broadband network will become very slow when the mobile signal is weak in the prior art is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of a module of a signal communication terminal in one embodiment.

[0019] Figure 2 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0020] Figure 3 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0021] Figure 4 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0022] Figure 5 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0023] Figure 6 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment.

[0024] Figure 7 FIG. 4 is a circuit diagram of a signal communication terminal in an embodiment. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] In one embodiment, if Figure 1 As shown, the signal communication terminal includes at least one group of signal enhancement branches and a routing circuit 50: the routing circuit 50 is respectively connected to each of the signal enhancement branches, and is used to receive uplink signals and send downlink signals; and is used to output corresponding first switching signals and second switching signals according to the downlink signals; the signal enhancement branch includes a first antenna 10, a second antenna 60, a first switching circuit 20, a second switching circuit 40, a first signal distribution circuit 70 and a first signal processing circuit 30: the first switching circuit 20 is respectively connected to the first antenna 10, the second switching circuit and the first signal processing circuit 30; the second switching circuit 40 is respectively connected to the first signal distribution circuit 70 and the routing circuit 50; the first signal distribution circuit 70 is also connected to the second antenna.

[0032] Among them, it is convenient and quick to provide enhanced signals to devices such as MIFI connected to the routing circuit 50 or the second antenna 60, thereby solving the technical problem in the prior art that when the mobile signal is weak, the broadband network speed after the conversion of the mobile network to the broadband network device will also become very slow.

[0033] 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 weak or even no mobile signal, 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 first downlink branch for amplification and then transmit it through the MS (mobile station) end antenna to cover the weak signal area; the MS end antenna receives the mobile phone signal in the weak signal area and enters the uplink branch for amplification and other processing before transmitting it to the base station through the BS end antenna.

[0034] 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.

[0035] In the solution of the present application, the signal enhancement circuit, namely the first signal processing circuit 30, is directly added to the routing device, and the first signal distribution circuit 70 assists in signal splitting, and a first antenna 10, a second antenna 60, a first switching circuit 20 and a second switching circuit 40 are provided to assist in realizing its functions. Thus, the antenna of the routing device and the routing circuit 50 can be directly used to realize part of the functions of the signal enhancer, thereby achieving the effects of signal amplification and size reduction.

[0036] 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 function of the first signal processing circuit 30 can also 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 prevented from interfering with the routing circuit 50 and the base station in a strong signal environment. In addition, the first signal distribution circuit 70 can also flexibly control the splitting of the first uplink sub-signal output to the routing circuit and the second uplink sub-signal output to the second uplink sub-signal when the first signal processing circuit 30 is self-excited, so as to achieve the purpose of the signal communication terminal being able to work normally in the case of self-excitation.

[0037] Furthermore, a second antenna 60 is provided to extract part of the signal from the first signal processing circuit 30 , so that when the first signal processing circuit 30 flowing to the routing circuit 50 self-excites due to improper installation of the device, the signal can be transmitted through the second antenna 60 .

[0038] 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 1 and a second end 2, the first switching circuit 20 has a first end 1, a second end 2 and a third end 3, the first signal distribution circuit 70 has a first end, a second end and a third end, the second switching circuit 40 has a first end 1, a second end 2 and a third end 3, the routing circuit 50 has a first end 1, the first end 1 of the first signal processing circuit 30 is connected to the first end 1 of the first switching circuit 20, the second end 2 of the first signal processing circuit 30 is connected to the first end 1 of the first signal distribution circuit 70; the second end 2 of the first switching circuit 20 is connected to the second end 2 of the second switching circuit 40, the third end 3 of the first switching circuit 20 is connected to the first antenna 10; the third end 3 of the second switching circuit 40 is connected to the first end 1 of the routing circuit 50; the first end of the second switching circuit is connected to the second end of the first signal distribution circuit 70; the third end of the first signal distribution circuit 70 is connected to the second antenna.

[0039] Among them, the first switching circuit 20 conducts the corresponding path according to the first switching signal, and the second antenna 60 switching circuit 40 conducts the corresponding path according to the first switching signal. Specifically, when the strength of the downlink signal is greater than or equal to the first preset signal strength, the path between the third end 3 of the first switching circuit 20 and the second end 2 is conducted, and when the strength of the downlink signal is less than the first preset signal strength, the first switching circuit 20 conducts the path between the first end 1 and the third end 3 of the first switching circuit 20; when the strength of the downlink signal is greater than or equal to the second preset signal strength, the second antenna 60 switching circuit 40 conducts the path between the third end 3 and the second end 2 of the second antenna 60 switching circuit 40, and when the strength of the downlink signal is less than the second preset signal strength, the second switching circuit 40 conducts the path between the first end 1 and the third end 3 of the second antenna 60 switching circuit 40. Through the above process, the switching between various paths can be flexibly realized. The control process at this time can be realized by the routing circuit 50, or by a control circuit set separately.

[0040] In one embodiment, referring to the attached Figure 4 As shown, the first switching circuit 20 further includes a controlled end, and the second switching circuit 40 further includes a controlled end; the controlled end of the first switching circuit 20 and the controlled end of the second switching circuit 40 are both connected to the routing circuit 50 .

[0041] Among them, the routing circuit 50 has the function of a control circuit at this time, and can realize the function of outputting the corresponding first switching signal and the second switching signal according to the downlink signal, so that the connection ends of the first switching circuit 20 and the second switching circuit 40 can be switched according to the strength of the downlink signal.

[0042] It should be noted that the routing circuit 50 specifically refers to a device that can convert 3G, 4G, 5G and other mobile network signals provided by base stations into WIFI broadband network (wireless), wired broadband network signals or WIFI + wired broadband network signals, such as MIFI or CPE. The routing circuit 50 requires one or more mobile network signal input and output ports, usually one or more WIFI antenna ports, or one or more wired broadband network interfaces, or one or more WIFI antenna ports + one or more wired broadband network interfaces.

[0043] In one embodiment, referring to the attached Figure 2 As shown, the signal communication terminal further includes a first attenuation circuit, a first end of the first attenuation circuit is connected to a second end of the first signal distribution circuit 70, a second end of the first attenuation circuit is connected to a first end of the second switching circuit, and a controlled end of the first attenuation circuit is connected to the routing circuit or the first control circuit;

[0044] Among them, the first control circuit or the routing circuit detects the signal strength of the first downlink signal of the first signal processing circuit, and when the signal strength is lower than the first preset signal strength, controls the attenuation value of the first attenuation circuit to decrease; when the signal strength is higher than the second preset signal strength, controls the attenuation value of the first attenuation circuit to increase, so as to reduce the signal strength of the downlink signal output to the second switching circuit.

[0045] In one embodiment, referring to the attached Figure 3 As shown, the signal communication terminal further includes a second attenuation circuit, and the second attenuation circuit is connected to the first signal distribution circuit 70 and the second antenna respectively;

[0046] The first control circuit or the routing circuit controls the attenuation value of the second attenuation circuit to increase or controls the second attenuation circuit to turn off when the signal strength is higher than a third preset signal strength, so as to eliminate the self-excitation signal.

[0047] In one embodiment, referring to the attached Figure 4 As shown, the signal communication terminal also includes a first control circuit 60, which is electrically connected to the first antenna 10, the second antenna 60 and at least one circuit in the routing circuit 50; the controlled end of the first switching circuit 20 and the controlled end of the second switching circuit 40 are both connected to the first control circuit 60.

[0048] Among them, the first control circuit 60 is used to obtain at least one first downlink signal from the first antenna 10, the second antenna 60 and the routing circuit 50, and when the strength of any of the first downlink signals is lower than the preset first signal strength, the path between the first switching circuit 20, the first signal processing circuit 30 and the second switching circuit 40 is turned on, and / or the path between the first switching circuit 20, the first signal processing circuit 30 and the second antenna 60 is turned on to output the first downlink signal after conversion and amplification and / or the first uplink signal after conversion and amplification. Through the above control process, when the strength of any downlink signal is low, the signal can be cut into the amplification branch of the first signal processing circuit 30 to achieve the output of the amplified downlink signal and the uplink signal. Thereby, the network speed of the broadband network after the device converts from the mobile network to the broadband network when the mobile signal is weak can be improved. That is, the strength of the downlink signal output by the routing circuit 50 and the second antenna 60 is improved, and the strength of the uplink signal output by the first antenna 10 can be simultaneously improved.

[0049] In one embodiment, refer to the attached Figure 2 , 3 As shown in Figures , 5, 6, and 7, the first switching circuit 20 includes a switching switch 1, a switching switch 2, and a power divider 3, the first connection end of the switching switch 1 is the third end 3 of the first switching circuit 20, the second connection end of the switching switch 1 is connected to the first connection end of the switching switch 2, and the third connection end of the switching switch 1 is connected to the first end 1 of the power divider 3; the second connection end of the switching switch 2 is the first end 1 of the first switching circuit 20, and the third connection end of the switching switch 2 is connected to the second end 2 of the power divider 3; the third end 3 of the power divider 3 is the second end 2 of the first switching circuit 20, the controlled end of the switching switch 1 is connected to the controlled end of the switching switch 2, and the connection node is the controlled end of the first switching circuit 20.

[0050] Among them, the power divider 3 can realize signal splitting.

[0051] Optionally, refer to Figure 2 , 3 As shown, the first switching circuit 20 and the second antenna 60 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.

[0052] Optionally, refer to Figure 2 , 3As shown in , 4, 5, 6, and 7, the first signal processing circuit 30 includes N first uplink branches 301, N first downlink branches 302, N first duplex branches 305, and N second duplex branches 306;

[0053] The first duplex branch has an input and output end, an uplink signal input end and a downlink signal output end; the second duplex branch has an input and output end, an uplink signal output end and a downlink signal input end; the first downlink branch includes an input end, a first output end and a second output end; the first uplink branch includes a first input end, a second input end and an output end.

[0054] The first signal processing circuit includes N first uplink branches, N first downlink branches, N first duplex branches and N second duplex branches;

[0055] The first duplex branch has an input and output end, an uplink signal input end, and a downlink signal output end; the second duplex branch has an input and output end, an uplink signal output end, and a downlink signal input end; the first downlink branch includes an input end, a first output end, and a second output end; the first uplink branch includes a first input end, a second input end, and an output end;

[0056] refer to Figure 2 , 3 , 5, 6, and 7, when N=1, the downlink signal output end of the first duplex branch is connected to the input end of the first downlink branch, the uplink signal input end of the first duplex branch is connected to the output end of the first uplink branch, and the input and output ends of the first duplex branch are the first end of the first signal processing circuit; the downlink signal input end of the second duplex branch is connected to the first output end of the first downlink branch; the uplink signal output end of the second duplex branch is connected to the first input end of the first uplink branch, and the input and output ends of the second duplex branch are the second ends of the first signal processing circuit;

[0057] The first duplex branch is used to combine the N first uplink branch output frequency bands of the first 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 N first downlink branches of the first signal processing circuit respectively;

[0058] The second duplex branch is used to combine the N first downlink branch output frequency bands of the first signal processing circuit into a downlink signal and then output it to the second antenna, or to split the uplink signal input by the second antenna and then input it to the N first uplink branches of the first signal processing circuit respectively;

[0059] Among them, the first combining circuit combines the N output frequency bands of the first uplink branches 301 of the first signal processing circuit 30 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 N first downlink branches 302 of the first signal processing circuit 30; the second combining circuit combines the N output frequency bands of the first downlink branches 302 of the first signal processing circuit 30 into a downlink signal and outputs it to the second antenna 60, or splits the uplink signal input by the second antenna 60 and inputs them respectively to the N first uplink branches 301 of the first signal processing circuit 30.

[0060] refer to Figure 3 as well as Figure 6 As shown, when N is an integer greater than or equal to 2, the first signal processing circuit further includes a first combining branch and a second combining branch, the downlink signal output end of the Nth first duplex branch is connected to the input end of the Nth first downlink branch, the uplink signal input end of the Nth first duplex branch is connected to the output end of the Nth first uplink branch, the input and output ends of the N first duplex branches are all connected to the first combining branch, and the signal exchange end of the first combining branch is the first end of the first signal processing circuit; the downlink signal input end of the Nth second duplex branch is connected to the first output end of the Nth first downlink branch; the uplink signal output end of the Nth second duplex branch is connected to the first input end of the Nth first uplink branch, the input and output ends of the N second duplex branches are all connected to the second combining branch, and the signal exchange end of the second combining branch is the second end of the first signal processing circuit;

[0061] The first combining branch is used to split the uplink signal input by the routing circuit and input the split uplink signal to the N second uplink branches of the first signal processing circuit respectively;

[0062] The second combining branch is used to combine the N second downlink branch output frequency bands of the first signal processing circuit into a downlink signal and then output it to the routing circuit.

[0063] In the above circuit, when the gain of the upstream branch and the downstream branch needs to be higher, the number of amplifiers in the branch can be increased as needed, and the position of the amplifier added in the branch is not restricted, but it is usually placed after the attenuator. At the same time, other devices such as filters can usually be added to the branch as needed.

[0064] Optionally, the first combining branch and the second combining branch may be implemented by various combining types such as a power divider, a bridge, a dielectric combiner, a cavity combiner, a microstrip line or a stripline direct combiner, and the like.

[0065] Optionally, refer to Figure 2 As shown, the first uplink branch includes an amplifier 32, an attenuator 33 and an amplifier 33, the input end of the amplifier 33 is the input end of the first uplink branch, and the output end of the amplifier 33 is connected to the input end of the attenuator 32; the output end of the attenuator 32 is connected to the input end of the amplifier 32, and the output end of the amplifier 32 is the output end of the first uplink branch; the first downlink branch includes an amplifier 34, an attenuator 33 and an amplifier 35, the input end of the amplifier 34 is the input end of the first downlink branch, the output end of the amplifier 34 is connected to the input end of the attenuator 33, and the output end of the attenuator 33 is connected to the input end of the amplifier 35; the output end of the amplifier 35 is the output end of the first downlink branch.

[0066] The first uplink branch includes an amplifier 32, an attenuator 32 and an amplifier 33, the input end of the amplifier 33 is the first input end of the first uplink branch, and the output end of the amplifier 33 is connected to the input end of the attenuator 32; the first input end of the power divider is connected to the output end of the attenuator 32, the second input end of the power divider is the second input end of the first uplink branch, the output end of the power divider 1 is connected to the input end of the amplifier 32, and the output end of the amplifier 32 is the output end of the first uplink branch; the first downlink branch includes an amplifier 34, an attenuator 33 and an amplifier 35, the input end of the amplifier 34 is the first input end of the first downlink branch, and the output end of the amplifier 34 is connected to the input end of the power divider; the first output end of the power divider 2 is connected to the input end of the attenuator 33, and the second output end of the power divider is the second output end of the first downlink branch; the output end of the attenuator 33 is connected to the input end of the amplifier 35; the output end of the amplifier 35 is the first output end of the first downlink branch.

[0067] Optionally, the first uplink branch 301 further includes an isolator, and the isolator 1 is arranged between the power divider and the attenuator 32 .

[0068] The isolator can isolate the signals of the first uplink branch 301 and the second uplink branch 303 .

[0069] Optionally, (corresponding to Figure 2 ) the second uplink branch 303 comprises an attenuator 3, an input end of the attenuator 3 is an input end of the second uplink branch 303, and an output end of the attenuator 3 is an output end of the second uplink branch 303;

[0070] The second downlink branch 304 includes an attenuator 4, the input end of the attenuator 4 is the input end of the second downlink branch 304, and the output end of the attenuator 4 is the output end of the second downlink branch 304; or,

[0071] The second uplink branch 303 includes an attenuator 3 and an isolator 2 . The input end of the attenuator 3 is the input end of the second uplink branch 303 , and the output end of the attenuator 3 is the output end of the second uplink branch 303 .

[0072] In one embodiment, reference Figure 2 As shown, it also includes a second control circuit and a detection branch arranged one-to-one with any of the first uplink branch 301 and the first downlink branch 302, the second control circuit includes a control end arranged corresponding to the number of the attenuators, the detection end of the detection branch is arranged at the output end of the amplifier in any branch, the output end of each of the detection branches is connected to the second control circuit, and the control end of the second control circuit is connected one-to-one to the controlled end of the attenuator of the first uplink branch 301 or the first downlink branch 302 and the controlled end of the attenuator of the second downlink branch 304 or the second downlink branch 304.

[0073] The detection branch corresponding to the first uplink branch 301 is composed of detector 1, the detection branch corresponding to the first downlink branch 302 is composed of detector 2, the detection branch corresponding to the second uplink branch 303 is composed of detector 2, and the detection branch corresponding to the second downlink branch 304 is composed of detector 4.

[0074] In one embodiment, if Figure 5 As shown, the first antenna 10 is a BS downlink diversity antenna, the second antenna 60 is a BS downlink diversity antenna, the first signal processing circuit 30 includes a filter 12, an amplifier 34, an attenuator 33 and a filter 13, the input end of the filter 12 is the first end 1 of the first signal processing circuit 30, and the output end of the filter 12 is connected to the input end of the amplifier 34; the input end of the power divider 4 is connected to the output end of the amplifier 34, the first output end of the power divider 4 is connected to the input end of the attenuator 33, and the second output end of the power divider 4 is the second end 2 of the first signal processing circuit 30; the output end of the attenuator 33 is connected to the input end of the filter 13, and the output end of the filter 13 is the third end 3 of the first signal processing circuit 30.

[0075] At this time, 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 including 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 downlink branches. The RF parameters and control of the added downlink branches need to be consistent with the first group; if there are multiple frequency bands, each frequency band adds a group of downlink branches or adds downlink branches of some frequency bands, and uses a combiner to combine downlink branches of different frequency bands. These downlink branches share an additional first antenna 10, that is, a BS downlink diversity antenna and an additional second antenna 60, that is, an MS downlink diversity antenna; the branch architecture and control method are similar to the previous ones and will not be repeated.

[0076] In one embodiment, if Figure 6 , 7 As shown, the second antenna 60 is a MIMO antenna or a second antenna 60 (MS antenna).

[0077] Optionally, the first duplex branch 305, the second duplex branch 306, and the second duplex branch 304 may be implemented by using a duplexer or a synchronous switch. Figure 2 , 3 , 5, 6 shown in the duplexer 1, 2, 3, and Figure 7 Shown are a synchronous switch 1 and a synchronous switch 2.

[0078] It should be noted that when the gain of branch 3 needs to be higher, the number of amplifiers in the branch can be increased as needed, and the position of the amplifier added in the branch is not limited, but it is usually placed after the attenuator. At the same time, other devices such as filters can usually be added to the branch as needed. Figure 7 As shown, the branch can be implemented by using a filter 12, an amplifier 34, an attenuator 33 and a filter 13 connected in sequence.

[0079] 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 branch of different frequency bands.

[0080] The following combination Figure 1-Figure 7 The principle of the present invention is described:

[0081] Description of the downlink signal solution:

[0082] As 1- Figure 2 As shown, the duplexer divides the received signal into an uplink (UL) band and a downlink (DL) band, and transmits the received signal to the amplifier 34 (this position is usually a low noise amplifier LNA to ensure a good noise figure or signal-to-noise ratio, which is used to ensure that when the signal received by the BS antenna is very weak or the signal-to-noise ratio is very poor, the required signal can be amplified instead of the background noise);

[0083] After passing through amplifier 34, it goes to attenuator 33, amplifier 35 and duplexer 21, and then the signal goes through coupler 1 to the second antenna to transmit the amplified signal of the downlink; the amplified downlink signal transmitted by the second antenna can be provided to mobile communication terminals such as mobile phones. There may be more than one amplifier 4 between duplexer 20 and duplexer 21, and there may be two or more amplifiers, which are adjusted according to the gain required by the product, and the same applies to the uplink;

[0084] The signal of the downlink is detected by the detector 8, and the signal is usually detected at a certain point in the downlink, and this point can be anywhere between the attenuator 33 and the duplexer 21. The detector 8 converts the detected signal into a signal (usually a voltage) that can be processed by the processor. The processor generates a control signal to control the attenuation value of the attenuator 33 by processing the signal of the detector, thereby realizing the signal control of the downlink, which is usually to control the signal strength, interference and other parameters of the downlink, usually to prevent the signal from being too strong or to reduce interference. The detector is usually a detection diode or a logarithmic detector, and the 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 routing circuit;

[0085] Generally speaking, when the detector 8 detects a weak signal or there is no interference, the processor will control the attenuator 33 to release the attenuation value to the maximum; when a strong signal is detected or there is interference, the processor will control the attenuator 33 to attenuate the gain until the signal is reduced to a normal range or the interference is eliminated or improved; because the control of the amplification link is a common control technology of BOOSTER, it will not be repeated here.

[0086] The signal distribution circuit is used to divide the radio frequency signal into two or more parts according to a certain ratio based on the actual needs of the product. One part of the signal goes to the second antenna, and the other part goes to the switching switch 40, and then to the routing circuit; the signal distribution port can be a power divider, a bridge, a coupler, an attenuator, or other devices or modules that have the function of radio frequency signal distribution alone, or a combination of the above devices; the signal distribution circuit can distribute two signals in a fixed ratio or in an adjustable ratio. In this block diagram, the coupler 1 and the attenuator 34 constitute an adjustable signal distribution circuit, in which the coupler has three ports, two of which are directly connected to each other, and one port is a coupling port. Usually, the directly connected port has a small loss and can pass most of the signals, while the coupled port can only couple a small part of the signal, thus forming a signal distribution effect, and at the same time the block Figure 2 The signal at the coupling port of the middle coupler will continue to pass through the adjustable attenuator 34, and the attenuation value of the adjustable attenuator 34 is controlled by the processor 3. The processor can adjust the attenuation value of the attenuator 34 according to the actual needs of the product, so that the signal passing through the attenuator 34 is attenuated accordingly, thereby achieving the effect of flexibly distributing the signal reaching the routing circuit or the signal emitted by the routing circuit.

[0087] At the same time, the attenuation control of the attenuator 34 can also be directly or indirectly controlled by the routing circuit: the routing circuit determines the strength of the received downlink signal. If it is too strong, the attenuator 34 is controlled to increase the attenuation value to reduce the received signal strength; if it is too weak, the attenuator 34 is controlled to reduce the attenuation value to increase the received signal strength; the routing circuit can also send the received signal strength or the judgment result to the processor, and the processor indirectly controls the attenuation of the attenuator 34.

[0088] When the first antenna and the second antenna have insufficient isolation due to improper installation or environmental changes and self-excitation occurs, the device detects the self-excitation and attenuates the gain to eliminate the self-excitation. At this time, the attenuation values ​​of attenuators 32 and 33 are too large, resulting in the weakening of the transmission and receiving capabilities of the second antenna. The signal coverage effect of the second antenna will be weakened, but at this time, the attenuation value of attenuator 34 can still be reduced to offset or weaken the impact of the large attenuation values ​​of attenuators 32 and 33.

[0089] Description of the uplink signal solution:

[0090] exist Figure 2In the figure, after the uplink transmission signal of a mobile communication device such as a mobile phone is received by the second antenna, it passes through a coupler to a duplexer 21, and then to an amplifier 33 (the amplifier after the duplexer is usually a low noise amplifier LNA to ensure a good noise coefficient or signal-to-noise ratio, which is used to ensure that the noise coefficient or signal-to-noise ratio of the signal received at the second antenna will not be significantly deteriorated, so as not to cause interference to the base station after being amplified by the subsequent amplification link of the LNA and then transmitted through the first antenna). After the amplifier 33 amplifies the uplink signal, the signal goes to the attenuator 32 and then to the amplifier 32 (the amplifier 32 is usually a power amplifier PA). The amplifier 32 is used to amplify the signal to sufficient power and pass through the duplexer 20, the antenna switching module, and then to the first antenna to be transmitted and received by the base station;

[0091] The detector 7 detects the uplink signal and converts it into a signal that can be processed by the processor. The processor processes or analyzes the signal and generates a control signal to control the attenuator 32 to adjust the link parameters. The specific control method and link description are the same as the previous downlink description, which will not be repeated here;

[0092] At the same time, the routing circuit will also generate an uplink transmission signal, which then goes to the attenuator 34, and then reaches the coupler 1 after passing through the attenuator. The signal is then coupled to the line between the coupler 1 and the duplexer 21, and then goes to the duplexer 21 together with the uplink transmission signal of mobile communication devices such as mobile phones. After the same processing flow as the previous uplink signal, it finally reaches the first antenna and is transmitted and received by the base station.

[0093] 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.

[0094] The signal communication system base station communicates with the first antenna 10 of the signal communication terminal; the mobile terminal communicates with the second antenna 60; and the routing terminal communicates with the routing circuit 50.

[0095] 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 includes at least one set of signal enhancement branches and routing circuits: The routing circuit is connected to each of the signal enhancement branches respectively, and is used to receive an uplink signal and send a downlink signal; and is used to output a corresponding first switching signal and a second switching signal according to the downlink signal; The signal enhancement branch includes a first antenna, a second antenna, a first switching circuit, a second switching circuit, a first signal distribution circuit and a first signal processing circuit: The first switching circuit is connected to the first antenna, the second switching circuit and the first signal processing circuit respectively; the second switching circuit is connected to the first signal distribution circuit and the routing circuit respectively; the first signal distribution circuit is also connected to the second antenna; The first antenna is used to receive a first downlink signal and send a first uplink signal; The second antenna is used to send a first downlink signal and receive a first uplink signal; The first switching circuit is used to switch the connection end according to the first switching signal; The second switching circuit is used to switch the connection end according to the second switching signal, so as to work together with the first switching circuit to conduct the path between the first switching circuit, the first signal processing circuit and the second switching circuit when the strength of the first downlink signal is lower than the preset first signal strength, and / or to conduct the path between the first switching circuit, the first signal processing circuit and the second antenna, so as to output the first downlink signal after conversion and amplification processing and / or the first uplink signal after conversion and amplification processing; or, When the strength of the first downlink signal is greater than or equal to a preset first signal strength, conducting a path between the first switching circuit and the second switching circuit to directly output the first downlink signal and / or the first uplink signal; The first signal distribution circuit is used to split the first downlink signal into a first downlink signal and a second downlink signal according to the signal standard transmitted by the second antenna and the routing circuit; and is also used to split the first uplink signal into a first uplink sub-signal and a second uplink sub-signal according to the signal standard transmitted by the first antenna; The first signal processing circuit includes a first end and a second end, the first signal distribution circuit has a first end, a second end and a third end, the first switching circuit has a first end, a second end and a third end, the second 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 switching circuit, the second end of the first signal processing circuit is connected to the first end of the first signal distribution circuit; the second end of the first switching circuit is connected to the second end of the second switching circuit, and the third end of the first switching circuit is connected to the first antenna; the third end of the second switching circuit is connected to the first end of the routing circuit; the first end of the second switching circuit is connected to the second end of the first signal distribution circuit; the third end of the first signal distribution circuit is connected to the second antenna; The first signal processing circuit includes N first uplink branches, N first downlink branches, N first duplex branches and N second duplex branches; The first duplex branch has an input and output end, an uplink signal input end, and a downlink signal output end; The second duplex branch has an input and output end, an uplink signal output end and a downlink signal input end; the first downlink branch includes an input end, a first output end and a second output end; the first uplink branch includes a first input end, a second input end and an output end; When N=1, the downlink signal output end of the first duplex branch is connected to the input end of the first downlink branch, the uplink signal input end of the first duplex branch is connected to the output end of the first uplink branch, and the input and output ends of the first duplex branch are the first end of the first signal processing circuit; the downlink signal input end of the second duplex branch is connected to the first output end of the first downlink branch; the uplink signal output end of the second duplex branch is connected to the first input end of the first uplink branch, and the input and output ends of the second duplex branch are the second end of the first signal processing circuit; The first duplex branch is used to combine the N first uplink branch output frequency bands of the first 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 N first downlink branches of the first signal processing circuit respectively; The second duplex branch is used to combine the N first downlink branch output frequency bands of the first signal processing circuit into a downlink signal and then output it to the second antenna, or to split the uplink signal input by the second antenna and then input it to the N first uplink branches of the first signal processing circuit respectively; When N is an integer greater than or equal to 2, the first signal processing circuit further includes a first combining branch and a second combining branch, the downlink signal output end of the Nth first duplex branch is connected to the input end of the Nth first downlink branch, the uplink signal input end of the Nth first duplex branch is connected to the output end of the Nth first uplink branch, the input and output ends of the N first duplex branches are all connected to the first combining branch, and the signal exchange end of the first combining branch is the first end of the first signal processing circuit; the downlink signal input end of the Nth second duplex branch is connected to the first output end of the Nth first downlink branch; the uplink signal output end of the Nth second duplex branch is connected to the first input end of the Nth first uplink branch, the input and output ends of the N second duplex branches are all connected to the second combining branch, and the signal exchange end of the second combining branch is the second end of the first signal processing circuit; The first combining branch is used to split the uplink signal input by the routing circuit and input the split uplink signal to the N second uplink branches of the first signal processing circuit respectively; The second combining branch is used to combine the N second downlink branch output frequency bands of the first signal processing circuit into a downlink signal and then output it to the routing circuit.

2. The signal communication terminal according to claim 1, characterized in that: The first switching circuit further includes a controlled end, and the second switching circuit further includes a controlled end; the controlled end of the first switching circuit and the controlled end of the second switching circuit are both connected to the routing circuit; or, The signal communication terminal further includes a first control circuit, the first control circuit being electrically connected to the first antenna, the second antenna, and at least one of the routing circuits; the controlled end of the first switching circuit and the controlled end of the second switching circuit are both connected to the first control circuit; The first control circuit is used to obtain at least one first downlink signal from the first antenna, the second antenna and the routing circuit, and when the strength of any of the first downlink signals is lower than a preset first signal strength, to turn on the path between the first switching circuit, the first signal processing circuit and the second switching circuit, and / or to turn on the path between the first switching circuit, the first signal processing circuit and the second antenna, so as to output the first downlink signal after conversion and amplification processing and / or the first uplink signal after conversion and amplification processing.

3. The signal communication terminal according to claim 2, characterized in that: The signal communication terminal further includes a first attenuation circuit, wherein a first end of the first attenuation circuit is connected to a second end of the first signal distribution circuit, a second end of the first attenuation circuit is connected to a first end of the second switching circuit, and a controlled end of the first attenuation circuit is connected to the routing circuit or the first control circuit; The first control circuit or the routing circuit is used to detect the signal strength of the first downlink signal of the first signal processing circuit, and when the signal strength is lower than a first preset signal strength, control the attenuation value of the first attenuation circuit to decrease; When the signal strength is higher than a second preset signal strength, the attenuation value of the first attenuation circuit is controlled to increase so as to reduce the signal strength of the downlink signal output to the second switching circuit.

4. The signal communication terminal according to claim 2, characterized in that: The signal communication terminal further includes a second attenuation circuit, and the second attenuation circuit is connected to the first signal distribution circuit and the second antenna respectively; The first control circuit or the routing circuit controls the attenuation value of the second attenuation circuit to increase or controls the second attenuation circuit to turn off when the signal strength is higher than a third preset signal strength, so as to eliminate the self-excitation signal.

5. The signal communication terminal according to claim 1, characterized in that: The first uplink branch includes an amplifier 32, an attenuator 33 and an amplifier 33, the input end of the amplifier 33 is the input end of the first uplink branch, and the output end of the amplifier 33 is connected to the input end of the attenuator 32; the output end of the attenuator 32 is connected to the input end of the amplifier 32, and the output end of the amplifier 32 is the output end of the first uplink branch; the first downlink branch includes an amplifier 34, an attenuator 33 and an amplifier 35, the input end of the amplifier 34 is the input end of the first downlink branch, the output end of the amplifier 34 is connected to the input end of the attenuator 33, and the output end of the attenuator 33 is connected to the input end of the amplifier 35; the output end of the amplifier 35 is the output end of the first downlink branch.

6. The signal communication terminal according to claim 5, characterized in that: The signal communication terminal also includes a second control circuit and a detection branch that is set one-to-one with any of the first uplink branch and the first downlink branch. The second control circuit includes a control end set corresponding to the number of attenuators. The detection end of the detection branch is set at the output end of the amplifier in any branch. The output end of each of the detection branches is connected to the second control circuit. The control end of the second control circuit is connected one-to-one to the controlled end of the attenuator of the first uplink branch or the first downlink branch and the controlled end of the attenuator of the second downlink branch or the second downlink branch.

7. The signal communication terminal according to claim 1, characterized in that: The first switching circuit includes a switching switch 1, a switching switch 2 and a power divider 3, the first connection end of the switching switch 1 is the third end of the first switching circuit, the second connection end of the switching switch 1 is connected to the first connection end of the switching switch 2, and the third connection end of the switching switch 1 is connected to the first end of the power divider 3; the second connection end of the switching switch 2 is the first end of the first switching circuit, and the third connection end of the switching switch 2 is connected to the second end of the power divider 3; the third end of the power divider 3 is the second end of the first switching circuit, the controlled end of the switching switch 1 is connected to the controlled end of the switching switch 2, and the connection node is the controlled end of the first switching circuit.

8. The signal communication terminal according to claim 1, characterized in that: The first antenna is a BS downlink diversity antenna, the second antenna is a BS downlink diversity antenna, the first signal processing circuit includes a filter 12, an amplifier 34, an attenuator 33 and a filter 13, the input end of the filter 12 is the first end of the first signal processing circuit, and the output end of the filter 12 is connected to the input end of the amplifier 34; the input end of the power divider 4 is connected to the output end of the amplifier 34, the first output end of the power divider 4 is connected to the input end of the attenuator 33, and the second output end of the power divider 4 is the second end of the first signal processing circuit; the output end of the attenuator 33 is connected to the input end of the filter 13, and the output end of the filter 13 is the third end of the first signal processing circuit.

9. A signal communication system, characterized in that: The signal communication system base station, mobile terminal, routing terminal and the signal communication terminal according to any one of claims 1 to 7; The signal communication system base station communicates with the first antenna of the signal communication terminal; the mobile terminal communicates with the second antenna; The routing terminal communicates with the routing circuit.

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