CN115499031A - Signal communication terminal and signal communication system - Google Patents

Abstract

The invention discloses a signal communication terminal and a signal communication system, wherein 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 passage and a second passage are arranged between the routing circuit and the first antenna, the first antenna switching circuit is arranged between the first antenna and the first passage and between the first antenna and the second passage, and the second antenna switching circuit is arranged between the routing circuit and the first passage and between the routing circuit and the second passage, so that the technical problem that the network speed of a broadband network of equipment for converting a mobile network into the broadband network is slow when a mobile signal is weak in the prior art is solved.

Description

Signal communication terminal and signal communication system

Technical Field

The invention relates to a signal communication terminal and a signal communication system, and belongs to the technical field of communication.

Background

In the prior art, currently, there is a device in the market that can convert a mobile network such as 3G, 4G, or 5G into a broadband network (for example, a WIFI hotspot or a portal signal), which is generally a product such as a USB Dongle, a 3G/4G network card, MIFI, WIFI on the head, CPE, or a 4G router, and these products can provide a WIFI hotspot or a network signal for a terminal device such as a mobile phone, a tablet, or a computer without connecting to the broadband network. Generally, such devices include a mobile network baseband processor (including but not limited to a baseband processor of network systems such as GSM, EDGE, CDMA, WCDMA, 4G LTE, 5G, etc.), a radio frequency transceiver, a memory chip, a filter, a duplexer, a radio frequency switch, a WIFI chip or a network interface chip, a SIM card, etc., a mobile network antenna, a WIFI antenna, a network interface; the basic principle is that a base station signal is received through a mobile network antenna, then the signal is processed in a radio frequency transceiver after passing through a radio frequency switch, a duplexer and a filter, the processed signal is sent to a baseband processor to be converted into data to be sent to a WIFI chip or a network interface chip, the WIFI chip or the network interface chip converts the data of the baseband chip into a WIFI hotspot wireless signal of 2.4GHz or 5GHz and then sends the WIFI hotspot wireless signal out through a WIFI antenna, terminal equipment within the coverage range of the WIFI antenna can use the signal of the hotspot, meanwhile, the WIFI chip or the network interface chip can convert the baseband data into a network interface signal through a network interface conversion chip and send the network interface signal to a wired network interface, and the terminal equipment can be connected to a network interface of the equipment through a network cable and surf the internet; conversely, the prior network data or the wireless WIFI signal of the terminal equipment also enters the internet access and the WIFI antenna, the data and the signal of the internet access and the WIFI antenna are sent to the WIFI chip or the internet access chip, the signal and the data and the signal are processed and then sent to the baseband chip by the WIFI chip or the internet access chip, the data are processed and sent to the radio frequency transceiver by the baseband chip, and the signal is sent to the base station through the mobile network antenna after passing through the filter, the duplexer, the radio frequency switch and other devices.

Generally, a device for converting a mobile network into a broadband network can only play a good effect when a mobile network signal is good, the network speed of the broadband network of the device for converting the mobile network into the broadband network becomes very low when the mobile signal is weak, and the device cannot work directly when the mobile signal is weak.

Disclosure of Invention

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, which solve the technical problem in the prior art that the network speed of the broadband network of the device for converting the mobile network into the broadband network becomes very slow when the mobile signal is weak.

In order to achieve the above object, the present invention provides a signal communication terminal, including:

a first antenna for receiving a first downlink signal and transmitting a first uplink signal;

a routing circuit, which is provided with a first path and a second path between the first antennas, and is used for receiving a first uplink signal and sending a first downlink signal, wherein the second path is provided with a first signal processing circuit for performing conversion amplification processing on the first downlink signal and the first uplink signal;

a first antenna switching circuit provided between the first antenna and the first and second paths;

a second antenna switching circuit provided between the routing circuit and the first and second paths; and the second path is conducted to output the first downlink signal after the conversion and amplification processing through the routing circuit or output the first uplink signal after the conversion and amplification processing through the first antenna when the strength of the first downlink signal is lower than a preset first signal strength; or when the intensities of the first downlink signals are all larger than or equal to a preset first signal intensity, the first path is conducted so that the first downlink signals are output through the routing circuit or the first uplink signals are output through the first antenna.

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

Optionally, the first antenna switching circuit further includes a controlled terminal, and the second antenna switching circuit further includes a controlled terminal;

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 like, or, alternatively,

the signal communication terminal further comprises 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 with the first control circuit.

Optionally, the signal communication terminal further includes a second antenna and a third antenna which are wirelessly connected, the second antenna and the third antenna are disposed between the second antenna switching circuit and the routing circuit, the second antenna is connected to a third end of the second antenna switching circuit, and the routing circuit is connected to the third antenna.

Optionally, the signal communication terminal further includes a second signal processing circuit, a first combining circuit and a second combining circuit, the first combining circuit is disposed between the first antenna and the first signal processing circuit and the second signal processing circuit, and the second combining circuit is disposed between the routing circuit and the first signal processing circuit and the second signal processing circuit;

the first combining circuit is configured to combine output frequency bands of the first signal processing circuit and the second signal processing circuit into an uplink signal and output the uplink signal to the first antenna, or split a downlink signal input by the first antenna and input the split downlink signal to the first signal processing circuit and the second signal processing circuit, respectively;

the second combining circuit is configured to combine output frequency bands of the first signal processing circuit and the second signal processing circuit into a downlink signal and output the downlink signal to the routing circuit, or split an uplink signal input by the routing circuit and input the split uplink signal to the first signal processing circuit and the second signal processing circuit, respectively.

Optionally, the first signal processing circuit or the second signal processing circuit includes at least one pair of a first upstream signal processing branch and a first downstream signal processing branch which are arranged in pair, and a first duplex branch and a second duplex branch which are arranged corresponding to the pair of processing branches; the first duplex processing branch circuit is provided with an input end, an output end, an uplink signal input end and a downlink signal output end; the second duplex processing branch circuit is provided with an input end, an output end of an uplink signal and an input end of a downlink signal; the first downlink signal processing branch comprises an input end and a first output end; the first uplink signal processing branch comprises a first input end and an output end;

a downlink signal output end of the first duplex processing branch is connected with an input end of the first downlink signal processing branch, an uplink signal input end of the first duplex processing branch is connected with an output end of the first uplink signal processing branch, and an input and output end of the first duplex processing branch is a first end of the first signal processing circuit or a first end of the second signal processing circuit; a downlink signal input end of the second duplex processing branch is connected with a first output end of the first downlink signal processing branch; the uplink signal output end of the second duplex processing branch is connected with the first input end of the first uplink signal processing branch, and the input and output end of the second duplex processing branch is the second end of the first signal processing circuit or the second end of the second signal processing circuit.

Optionally, the first uplink signal processing branch includes an amplifier 1 and an attenuator 1, which are connected in sequence;

the first downlink signal processing branch comprises an amplifier 2 and an attenuator 2 which are connected in sequence.

Optionally, the wireless communication device further includes a diversity antenna, a fourth switching circuit, a sixth switching circuit, and a third signal circuit, where the fourth switching circuit is connected to the diversity antenna, the sixth switching circuit, and the third signal circuit, respectively; the sixth switching circuit is connected to the routing circuit, the fourth switching circuit, and the third signal circuit, respectively.

Optionally, 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.

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

The invention acquires a first downlink signal through a first antenna. And the routing circuit acquires the first uplink signal. The signal processing circuit amplifies the first downlink signal or the first uplink signal, and the first antenna switching circuit conducts a path between the first (base station) antenna and the first signal processing circuit when the strength of the first downlink signal is lower than a preset first signal strength so as to output the first uplink signal subjected to conversion amplification processing through the first antenna; or when the strengths of the first downlink signals are all greater than or equal to a preset first signal strength, a path between the first (base station) antenna and the routing circuit is conducted, so that the first uplink signals are output through the first antenna; when the strength of the first downlink signal is lower than a preset first signal strength, the second antenna switching circuit conducts a path between the routing circuit and the first signal processing circuit so as to output the first downlink signal subjected to conversion amplification processing through the routing circuit; or when the strengths of the first downlink signals are all larger than or equal to the preset first signal strength, the path between the first (base station) antenna and the routing circuit is conducted, so that the first downlink signals are output through the routing circuit; according to the scheme, when the strength of the downlink signal is lower than the preset first signal strength, the signal processing circuit carries out conversion amplification processing on the first downlink signal and the first uplink signal, so that the reinforced signals can be conveniently and quickly provided for equipment such as MIFI connected with a routing circuit. The method and the device solve the technical problem that the network speed of the broadband network of the device for converting the mobile network into the broadband network becomes very slow when the mobile signal is weak in the prior art.

Drawings

Fig. 1 is a block diagram of a signal communication terminal according to an embodiment.

Fig. 2 is a circuit diagram of a signal communication terminal according to an embodiment.

Fig. 3 is a circuit diagram of a signal communication terminal according to an embodiment.

Fig. 4 is a block diagram of a signal communication terminal according to an embodiment.

Fig. 5 is a circuit diagram of a signal communication terminal according to an embodiment.

Fig. 6 is a circuit diagram of a signal communication terminal according to an embodiment.

Fig. 7 is a circuit diagram of a signal communication terminal according to an embodiment.

Fig. 8 is a circuit diagram of a signal communication terminal according to an embodiment.

Fig. 9 is a circuit diagram of a signal communication terminal according to an embodiment.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left"

The terms "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, are defined as orientations or positional relationships based on those shown in the figures, and are used for convenience in describing the present application and to simplify the description.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.

The invention provides a signal communication terminal and a signal communication system, aiming at solving the technical problem that self-excitation judgment in the prior art is inaccurate.

In one embodiment, as shown in fig. 1, 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 disposed between the first antenna 10 and the first and second paths, and the second antenna 200 switching circuit 40 is disposed between the routing circuit 50 and the first and second paths. 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.

The first antenna 10 receives a first downlink signal and transmits a first uplink signal, the routing circuit 50 is provided with a first path and a second path between the first antennas 10, and is configured to receive the first uplink signal and transmit the first downlink signal, and the second path is provided with a first signal processing circuit 30 configured to perform conversion amplification processing on the first downlink signal and the first uplink signal; the second antenna 200 switching circuit 40 cooperates with the first antenna switching circuit 10 to turn on the second path to output the first downlink signal processed by the conversion and amplification through the routing circuit 50 or output the first uplink signal processed by the conversion and amplification through the first antenna 10 when the strength of the first downlink signal is lower than a preset first signal strength; or when the intensities of the first downlink signals are all greater than or equal to a preset first signal intensity, turning on the first path to output the first downlink signals through the routing circuit 50 or output the first uplink signals through the first antenna 10.

Specifically, the method comprises the following steps: when the strength of the first downlink signal is lower than a preset first signal strength, the first antenna switching circuit 10 switches on a second path between the first (base station) antenna and the first signal processing circuit 30, so that the first uplink signal is output through the first antenna 10 after being subjected to conversion amplification processing; or when the strengths of the first downlink signals are all greater than or equal to a preset first signal strength, turning on a first path between the first (base station) antenna and the routing circuit 50, 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 a preset first signal strength, the second antenna 200 switching circuit 40 switches on a path between the routing circuit 50 and the first signal processing circuit 30, so that the first uplink signal is converted, amplified, and then output through the routing circuit 50; or when the strengths of the first downlink signals are all greater than or equal to a preset first signal strength, turning on a path between the first (base station) antenna and the routing circuit 50 to directly output the unprocessed first downlink signals through the routing circuit 50. According to the scheme, when the strength of the downlink signal is lower than the preset first signal strength, the signal processing circuit performs conversion amplification processing on the first downlink signal and the first uplink signal, so that the reinforced signals can be conveniently and quickly provided for equipment such as MIFI (wireless fidelity) connected with the routing circuit 50, and therefore the technical problem that the network speed of a broadband network of the equipment for converting the mobile network into the broadband network becomes very slow when the mobile signal is weak in the prior art is solved.

For the weak wireless mobile signals, a terminal consumer can select a wireless signal enhancer to amplify signals, which is generally a repeater, a tambour and a mobile phone signal amplifier, and the signal enhancers are generally installed in application scenes such as homes, offices, vehicles, markets, subways and mountainous areas. Generally, the signal intensifier comprises a duplexer, an analog or digital filter, an amplifying tube, a detector, a controller, a radio frequency cable, an antenna and the like, and the basic principle is that a Base Station (BS) end antenna receives a signal of a base station, the signal enters a downlink for amplification, and then the signal is emitted through an MS (mobile station) end antenna to cover a weak signal area; the MS end antenna receives the mobile phone signal in the signal weak area, enters an uplink, is subjected to amplification and other processing, and then is transmitted to the base station through the BS end antenna.

The general signal intensifier comprises a duplexer, an analog or digital filter, an amplifying tube, a detector, a controller, a radio frequency cable, an antenna and the like, so that the general signal intensifier has larger size, complex circuit and high cost; it is not suitable for providing signals for devices of a mobile network to a broadband network alone.

In the solution of the present application, the signal enhancement circuit, that is, 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 part of the functions of the signal enhancer, so that the effects of signal amplification and size reduction are achieved.

Further effects are as follows: providing WIFI hotspots or broadband networks in various scenes with strong or weak signals or even no signals; when the signal is strong, the signal enhancement circuit can be turned off to reduce power consumption, and the device for converting the mobile network into the broadband network can directly receive external signals after bypassing the signal enhancer, so that the interference of the signal enhancer on the routing circuit 50 and the base station under the strong signal environment can be completely avoided.

Optionally, the circuit connection scheme of the above embodiment may be implemented with reference to the following connection relationship, as shown in fig. 1, the first signal processing circuit 30 includes a first terminal and a second terminal, the first antenna switching circuit 10 has a first terminal, a second terminal and a third terminal, the second antenna 200 switching circuit 40 has a first terminal, a second terminal and a third terminal, the routing circuit 50 has a first terminal, the first terminal of the first signal processing circuit 30 is connected to the first terminal of the first antenna switching circuit 10, and the second terminal of the first signal processing circuit 30 is connected to the first terminal of the second antenna 200 switching circuit 40; the second terminal of the first antenna switching circuit 10 is connected to the second terminal of the second antenna 200 switching circuit 40, and the third terminal of the first antenna switching circuit 10 is connected to the first antenna 10; the third terminal of the first antenna switching circuit 10 is connected to the first terminal of the routing circuit 50.

In an embodiment, the first antenna switching circuit 10 further includes a controlled terminal, the second antenna 200 switching circuit 40 further includes a controlled terminal, and both the controlled terminal of the first antenna switching circuit 10 and the controlled terminal of the second antenna 200 switching circuit 40 are connected to the routing circuit 50.

In another possible embodiment, as shown in fig. 4, the signal communication terminal further includes a first control circuit 60, and the controlled terminal of the first antenna switching circuit 10 and the controlled terminal of the second antenna switching circuit 40 are both connected to the first control circuit 60.

The first antenna switching circuit 10 switches on a corresponding path according to the strength of the downlink signal, the second antenna 200 switching circuit 40 switches on a corresponding path according to the strength of the downlink signal, and specifically, when the first antenna switching circuit 10 is greater than or equal to a first preset signal strength, the path between the first end and the second end of the first antenna switching circuit 10 is switched on, and when the strength of the downlink signal is less than the first preset signal strength, the first antenna switching circuit 10 switches on 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 a second preset signal strength, the second antenna 200 switching circuit 40 switches on 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 switches on the path between the first end and the third end of the second antenna 200 switching circuit 40. Through the process, the switching among all the channels can be flexibly realized. The control process at this time may be implemented by the routing circuit 50, or may be implemented by the first control circuit 60 provided separately.

Alternatively, referring to fig. 2, 3 and fig. 5 to 9, the first antenna switching circuit 10 and the second antenna switching circuit 200 may be implemented by a single-pole double-throw radio frequency switch, where the single-pole double-throw radio frequency switch can flexibly switch the conduction relationship according to the types and the strengths of the uplink and downlink signals. It should be noted that both the routing signal and the mobile signal are uplink signals.

In an embodiment, as shown in fig. 4, 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 terminal and a feedback input terminal, the input terminal of the detection circuit 70 is connected to the detection terminal of the first signal processing circuit 30, the detection terminal of the second control circuit 80 is connected to the output terminal of the detection circuit 70, and the feedback signal output terminal of the second control circuit 80 is connected to the feedback input terminal of the first signal processing circuit 30;

wherein 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 may be composed of a plurality of detectors, as shown in fig. 2 and fig. 5-8. The second control circuit 80 may be implemented using a processor 1/2. The detection of the downlink signal by the detector will typically be at a point in the downlink, which may 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, and the processor 1 processes the signal of the detector to generate a control signal to control the attenuation value of the attenuator 3, thereby implementing signal control on the downlink, for example, controlling parameters such as signal strength and interference of the downlink, and thus preventing the signal from being too strong or reducing the interference. The detector is usually a detection diode or a logarithmic detector, and the controller/processor is usually a microprocessor or an analog negative feedback control circuit such as a singlechip, an FPGA, a CPU and the like; the amplifying chain may also have a plurality of attenuators or other devices such as amplifiers or filters according to specific product requirements, but the scheme only explains the architecture of a common amplifying chain, and only extracts necessary parts for explaining how the amplifying chain is combined with circuits of equipment parts such as MIFI.

In an embodiment, as shown in fig. 3, the signal communication terminal further includes a second antenna 200 and a third antenna 210 wirelessly connected, the second antenna 200 and the third antenna 210 are disposed between the switching circuit 40 of the second antenna 200 and the routing circuit 50, the second antenna 200 is connected to a third terminal of the switching circuit 40 of the second antenna 200, and the routing circuit 50 is connected to the third antenna 210.

The two transceiving antennas of the second antenna 200 and the third antenna 210 transmit wireless signals to each other through a space. The routing circuit 50 can thus be more flexibly combined with the first antenna 10, the signal enhancement circuit. Can be with wireless connection's mode, also can be through wired connection's mode, conveniently lay wire and carry for the user is carrying first antenna 10 when first antenna switching circuit 10, second antenna 200 switching circuit 40 and first signal processing circuit 30 constitutes the circuit module that the signal enhancement circuit assembled, in the certain distance, can also be convenient carry out the reinforcing of signal, when the signal is less strong, also can realize the signal enhancement when, can also prevent the signal by switching the route when the signal is too strong that the signal is too strong or reduce the interference.

Optionally, referring to fig. 5 and fig. 6, the signal communication terminal further includes a third signal processing circuit 190, a first combining circuit and a second combining circuit, the first combining circuit is disposed 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 disposed between the routing circuit 50 and the first signal processing circuit 30 and the third signal processing circuit 190;

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 the uplink signal to the first antenna 10, or splits a downlink signal input by the first antenna 10 and inputs the downlink signal to the first signal processing circuit 30 and the third signal processing circuit 190, respectively; 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 the downlink signal to the routing circuit 50, or splits an uplink signal input by the routing circuit 50 and inputs the split uplink signal to the first signal processing circuit 30 and the third signal processing circuit 190, respectively.

Alternatively, referring to fig. 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 a first upstream signal processing branch 301 and a first downstream signal processing branch 302, which are arranged in pairs, and a first duplex branch and a second duplex branch which are arranged corresponding to the pair of processing branches; the first duplex processing branch 303 has an input/output end, an uplink signal input end, and a downlink signal output end; the second duplex processing branch 304 has an input/output terminal, an uplink signal output terminal, and a downlink signal input terminal; 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;

a downlink signal output end of the first duplex processing branch 303 is connected to an input end of the first downlink signal processing branch 302, an uplink signal input end of the first duplex processing branch 303 is connected to an output end of the first uplink signal processing branch 301, and an input and output end of the first duplex branch is a first end of the first signal processing circuit 30 or a first end of the third signal processing circuit 190; a downstream signal input terminal of the second duplex processing branch 304 is connected to a first output terminal of the first downstream signal processing branch 302; an upstream signal output end of the second duplex processing branch 304 is connected to a first input end of the first upstream signal processing branch 301, and an input and output end of the second duplex processing branch is a second end of the first signal processing circuit 30 or a second end of the third signal processing circuit 190.

When the first downlink signal strength is low, the first downlink signal processing branch 302302 outputs the first downlink signal after the conversion and amplification processing to the routing circuit 50, and the first uplink signal processing branch 301301 converts and amplifies the first uplink signal received by the routing circuit 50 and outputs the first uplink signal through the first antenna 10. By switching the switching circuit, signal enhancement can be realized, and simultaneously, signal over-intensity can be prevented or interference can be reduced. The self-excitation effect of the first antenna 10, the first antenna switching circuit 10, the second antenna 200 switching circuit 40, and the first signal processing circuit 30 constituting a signal enhancement circuit can be avoided by the switching of the lines after the signal enhancement. Avoiding the influence of the free-running signal on the route or the base station to which the first antenna 10 is connected.

Alternatively, the first duplex processing branch 303 and the second duplex processing branch 304 may be implemented using a duplexer or a synchronous switch. Reference is made to the duplexers 1, 2, 3, 4 shown in fig. 2, 3, 5, 6, 8, and the synchronous switch 1 and the synchronous switch 2 shown in fig. 8.

Optionally, the signal communication terminal further includes a third switching circuit 90 and a fourth switching circuit 110, the third switching circuit is disposed between the first combining circuit and the second signal circuit, and the fourth switching circuit is disposed between the second combining circuit and the second signal circuit.

The second signaling circuit is implemented with reference to 1001, 1002, 1003, 1004 shown in fig. 8.

Optionally, referring to fig. 8, the signal communication terminal further includes a fourth antenna 200 connected to the third switching circuit 90.

Alternatively, as shown in fig. 2, 3, 5, 6, 8, and 9, the first upstream signal processing branch 301 includes an amplifier 1 and an attenuator 1, which are connected in sequence. The first downstream signal processing branch 302 includes an amplifier 2 and an attenuator 2 connected in this order.

Optionally, referring to fig. 7, the signal communication terminal further includes a diversity antenna 160, a fifth switching circuit 170, a sixth switching circuit 180, and a third signal circuit 190, where the fifth switching circuit 170 is connected to the diversity antenna 160, the sixth switching circuit 180, and the third signal circuit 190, respectively; the sixth switching circuit 180 is connected to the routing circuit 50, the fifth switching circuit 170, and the third signal circuit 190, respectively.

The fifth switching circuit 170 and the sixth switching circuit 180 can be implemented by the single-pole double-throw rf switch 5 and the single-pole double-throw rf switch 6 shown in fig. 7.

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

when the number of the downlinks is plural, the signal communication terminal further includes a third combining circuit and a fourth combining circuit, and the plural downlinks are disposed between the fifth switching circuit 170 and the sixth switching circuit 180 through the third combining circuit and the fourth combining circuit.

In mobile communication, a base station can use two antennas to transmit downlink signals, usually, devices such as MIFI and mobile communication devices such as mobile phones can use a technology of receiving diversity, and the devices use a main antenna containing transmitting and receiving and a single downlink receiving diversity receiving antenna, so that in a signal environment supporting diversity receiving, a better signal effect can be provided for a user than the single main set antenna, especially in high-speed application such as WIFI, the diversity receiving is more important, therefore, the scheme provides a host + diversity receiving technology at the same time, the embodiment belongs to diversity receiving, the diversity receiving mainly adds a group of downlinks, and radio frequency parameters and control of the added downlinks need to be kept consistent with those of the first group; if the frequency bands are multiple frequency bands, each frequency band is added with a group of downlinks or downlinks of partial frequency bands, and the downlinks of different frequency bands are combined by using a combiner, and the downlinks commonly use 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 above and will not be described again.

It should be noted that when the gain of the link 3 needs to be higher, the number of amplifiers in the link can be increased according to the need, and the position where the amplifiers are added in the link can be unlimited, but the amplifiers are usually located behind an attenuator, and other devices such as a filter and the like can also be added in the link according to the need. Referring to fig. 7, the link may be implemented with a DL filter 1, an amplifier 5, an attenuator 5, and a DL filter 2 connected in sequence.

Optionally, the combining circuit may be a power divider, an electrical bridge, a dielectric combiner, a cavity combiner, a microstrip line or a stripline direct combining, or other multiple combining types. In this case, a multi-band signal processing circuit 30 can be implemented, with the combiner acting as a link for different frequency bands.

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

It should be noted that, since the signal communication system of the present application includes all steps of the signal communication terminal, the signal communication system may also implement all schemes of the signal communication terminal, and has the same beneficial effects, which are not described herein again.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A signal communication terminal, characterized in that the signal communication terminal comprises:

a first antenna for receiving a first downlink signal and transmitting a first uplink signal;

a routing circuit, which is provided with a first path and a second path between the first antennas, and is used for receiving a first uplink signal and sending a first downlink signal, wherein the second path is provided with a first signal processing circuit for performing conversion amplification processing on the first downlink signal and the first uplink signal;

a first antenna switching circuit provided between the first antenna and the first and second paths;

a second antenna switching circuit provided between the routing circuit and the first and second paths; and the second path is conducted to output the first downlink signal after the conversion and amplification processing through the routing circuit or output the first uplink signal after the conversion and amplification processing through the first antenna when the strength of the first downlink signal is lower than a preset first signal strength; or when the intensities of the first downlink signals are all larger than or equal to a preset first signal intensity, the first path is conducted so that the first downlink signals are output through the routing circuit or the first uplink signals are output through the first antenna.

2. The signal communication terminal of claim 1, wherein the first signal processing circuit includes a first terminal and a second terminal, the first antenna switching circuit has a first terminal, a second terminal, and a third terminal, the second antenna switching circuit has a first terminal, a second terminal, and a third terminal, the routing circuit has a first terminal, the first terminal of the first signal processing circuit is connected to the first terminal of the first antenna switching circuit, the second terminal of the first signal processing circuit is connected to the first terminal of the second antenna switching circuit; the second end of the first antenna switching circuit is connected with the second end of the second antenna switching circuit, and the third end of the first antenna switching circuit is connected with the first antenna; and the third end of the second antenna switching circuit is connected with the first end of the routing circuit.

3. The signal communication terminal of claim 1,

the first antenna switching circuit further comprises a controlled end, and the second antenna switching circuit further comprises 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 like, or, alternatively,

the signal communication terminal further comprises 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 with the first control circuit.

4. The signal communication terminal according to claim 2, wherein the signal communication terminal further comprises a second antenna and a third antenna connected wirelessly, the second antenna and the third antenna are disposed between the second antenna switching circuit and the routing circuit, the second antenna is connected to a third terminal of the second antenna switching circuit, and the routing circuit is connected to the third antenna.

5. The signal communication terminal of claim 2, further comprising a second signal processing circuit, a first combining circuit disposed between the first antenna and the first signal processing circuit and the second signal processing circuit, and a second combining circuit disposed between the routing circuit and the first signal processing circuit and the second signal processing circuit;

the first combining circuit is configured to combine output frequency bands of the first signal processing circuit and the second signal processing circuit into an uplink signal and output the uplink signal to the first antenna, or split a downlink signal input by the first antenna and input the split downlink signal to the first signal processing circuit and the second signal processing circuit, respectively;

the second combining circuit is configured to combine output frequency bands of the first signal processing circuit and the second signal processing circuit into a downlink signal and output the downlink signal to the routing circuit, or split an uplink signal input by the routing circuit and input the split uplink signal to the first signal processing circuit and the second signal processing circuit, respectively.

6. The signal communication terminal of claim 4, wherein the first signal processing circuit or the second signal processing circuit comprises at least one pair of a first upstream signal processing branch and a first downstream signal processing branch arranged in pairs, and a first duplex branch and a second duplex branch arranged corresponding to the pair of processing branches; the first duplex processing branch circuit is provided with an input end, an output end, an uplink signal input end and a downlink signal output end; the second duplex processing branch circuit is provided with an input end, an output end of an uplink signal and an input end of a downlink signal; the first downlink signal processing branch comprises an input end and a first output end; the first uplink signal processing branch comprises a first input end and an output end;

a downlink signal output end of the first duplex processing branch is connected with an input end of the first downlink signal processing branch, an uplink signal input end of the first duplex processing branch is connected with an output end of the first uplink signal processing branch, and an input and output end of the first duplex processing branch is a first end of the first signal processing circuit or a first end of the second signal processing circuit; the downlink signal input end of the second duplex processing branch is connected with the first output end of the first downlink signal processing branch; the uplink signal output end of the second duplex processing branch is connected with the first input end of the first uplink signal processing branch, and the input and output end of the second duplex processing branch is the second end of the first signal processing circuit or the second end of the second signal processing circuit.

7. The signal communication terminal of claim 5, further comprising a third switching circuit disposed between the first combining circuit and the second signal circuit, and a fourth switching circuit disposed between the second combining circuit and the second signal circuit.

8. The signal communication terminal of claim 1, further comprising a diversity antenna, a fourth switching circuit, a sixth switching circuit, and a third signal circuit, the fourth switching circuit being connected to the diversity antenna, the sixth switching circuit, and the third signal circuit, respectively; the sixth switching circuit is connected to the routing circuit, the fourth switching circuit, and the third signal circuit, respectively.

9. The signal communication terminal of claim 8, wherein said 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.

10. A signal communication system, characterized by a signal communication system base station, a mobile terminal, a routing terminal and a signal communication terminal according to any of claims 1-9.

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